CN100512995C - Apparatus and method for forming flanged housing member - Google Patents
Apparatus and method for forming flanged housing member Download PDFInfo
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- CN100512995C CN100512995C CNB2006101403984A CN200610140398A CN100512995C CN 100512995 C CN100512995 C CN 100512995C CN B2006101403984 A CNB2006101403984 A CN B2006101403984A CN 200610140398 A CN200610140398 A CN 200610140398A CN 100512995 C CN100512995 C CN 100512995C
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Abstract
A flanged housing member is formed using a forming method and a forming apparatus from a forming material having a pre-flanged forming portion disposed at one end of a trunk portion. The entire external surface of the flanged housing member can be ironed with a sufficient degree of precision without mechanical machining. The forming material is held on one of a first die having an external forming surface and a second die having an internal forming surface. A sizing process is performed to at least form an internal surface of the trunk portion using the first and second dies. The pre-flanged forming portion is sandwiched and pressed between the first die and a flange-forming die to form a flange portion on the end of the trunk portion.
Description
Technical field
The present invention relates in general to a kind of flanged pin housing member of arranging flange at an end place of trunk portion.More specifically, the present invention relates to as a kind of cold worked crowded drawing process (ironing process), this crowded drawing process is used for forming flange portion on the tubulose trunk portion, and wherein flange portion and trunk portion form the single and unitary member.
Background technology
Power transmission system of vehicle comprises the torque transmitter that usually has constant velocity cardan joint.Constant velocity cardan joint has the outer shroud as the flanged pin housing member sometimes, and this flanged pin housing member has trunk portion that has blind hole and the flange of outwards giving prominence to from the blind end of trunk portion.The blind hole of trunk portion can be provided with a plurality of tracks or the groove that is formed in its inner surface, thereby forms gauge guiding surface (gauge guide surface) between track or groove.
A kind of conventional method that is used for forming this flanged pin housing member comprises the surfaces externally and internally that at first forms trunk portion, then flange is welded on the end of trunk portion the end with the sealing trunk portion.Yet this is disadvantageous from the cost aspect, because two elements, promptly flange and trunk portion need weld together.
In addition, another kind of conventional method relates to thermal forging technology, and in this thermal forging technology, the flanged pin forged material at first forms through hole.After this, the outer surface of processing belt flange forged material is with external diameter and the flange that obtains stipulating and other element of realizing regulation.In the method, by broaching (broaching) with carry out track or groove and gauge guiding surface in the impewdance matching formation inner surface.Then, in the method, lid is installed on the end of trunk portion.Yet in the method, processing and broaching need process time, and broaching itself is expensive.Thereby this manufacturing process is more bad aspect manufacturing cost.
The another kind of conventional method of making the flanged pin circle tube member with through hole is disclosed among the Japanese kokai publication hei 02-025223 (Japan Patent No.2661669).In this communique, a kind of method of using cooling formation technic to form the flanged pin circle tube member is disclosed.This cooling formation technic comprises the inner surface that uses drift processing trunk portion.In this cooling formation technic, drift is inserted into the trunk portion from the opposition side of flange, and mould inserts from the direction identical with drift then, with the outer surface of shaping trunk portion.
The conventional method that a kind of manufacturing has the flanged pin circle tube member of blind hole is disclosed among the Japanese kokai publication sho 63-273523.In this communique, a kind of method of using cooling formation technic to form the flanged pin circle tube member is disclosed.Make the flange side of forging workpiece support this forging workpiece down herein.Then, the drift that is used for processing inner surface is inserted in the trunk portion, the center crowded drawing-die tool that is divided into a plurality of parts is arranged on the outer surface vertically, with by movable punching head or crowded drawing-die tool vertically, make workpiece come the outer surface of Forming Workpiece by the inside of mould.Like this, the inner surface of workpiece is contacted with the intimate of drift, repair the surfaces externally and internally of workpiece.
In view of above, those skilled in the art can find out significantly from the disclosure, has the needs that improve the flanged pin housing member.Those skilled in the art can find out obviously that from the disclosure the present invention is devoted to satisfy these needs of the prior art and other needs.
Summary of the invention
Have been found that above-mentioned technology has some defective.In Japanese kokai publication hei 02-025223 (Japan Patent No.2661669) in the disclosed technology, find, when when using mould to form outer surface on the flanged pin housing member, flange will become obstruction naturally, and can not apply to squeeze on whole outer surface and draw.Therefore, be tending towards can integrally not realizing enough accuracy.In addition, when removing product from mould, drawing-die is crowded again draws periphery because squeeze, so precision may further reduce.
In in Japanese kokai publication sho 63-273523, (seeing claims and Fig. 1) in the disclosed technology, have been found that identical problem in the technology that exists with Japanese kokai publication hei 02-025223 (Japan Patent No.2661669).In addition, because cutting workpiece in advance, the lead time increases, and manufacturing cost also increases.Also defectiveness is, cuts off because crystal grain stream is cut technology, may damage intensity.
These question authorings the present invention in view of said method.An object of the present invention is to provide a kind of flanged pin housing member, a kind of forming method and shaped device, wherein, the whole outer surface of plastic flanged pin housing member, thus can reduce the quantity of element, can shorten the lead time, and can improve manufacturing process at least from the cost aspect.
According to an aspect of the present invention, provide a kind of flanged pin element forming method, to form the flanged pin housing member.This flanged pin element forming method consists essentially of: the flange preformed moulding material partly that keeps having the trunk portion of being arranged in one end place; First mould that use has outer molded surface comes pressure-sizing to process the inner surface at least of described trunk portion with second mould with interior molded surface; Cramping flange preformed part between described first mould and flange mould forms flange portion with the end in described trunk portion; The described inner surface of described trunk portion is carried out pressure-sizing processing to be comprised: at first the specific length of the initial part of the described inner surface of described trunk portion is carried out pressure-sizing processing; After the cramping that carries out described flange preformed part was with the described end formed described flange in described trunk portion, the remainder of the described inner surface of described trunk portion was processed in pressure-sizing more then.
According to a further aspect in the invention, a kind of flanged pin element forming apparatus that is used for forming the flanged pin housing member is provided, it comprises: first mould, it comprises outer molded surface, be constructed and arranged to the to be shaped inner surface of trunk portion of moulding material, this moulding material has the flange preformed part at an end place that is arranged in this trunk portion; Second mould, it comprises interior molded surface, be constructed and arranged to cooperate with this first mould with when this first mould and this second mould relative motion against this first mould should outer molded surface and crowded this trunk portion of drawing this moulding material; And the flange mould, be constructed and arranged to against this first mould and this flange preformed part of this moulding material of cramping, form flange portion with a end in this trunk portion; Described flange mould also is constructed and arranged to one of described first and second moulds and only the described trunk portion of described moulding material is set to the described flange preformed of cramping cramping position partly along the position that the axial part of described trunk portion is carried out pressure-sizing processing.
Provide a kind of flanged pin housing member more on the one hand according to of the present invention, it comprises: trunk portion comprises the hole with inner surface; Closure part is sealed an end of this trunk portion; And flange portion, end place in this hole of this trunk portion is outwards outstanding from this trunk portion, this trunk portion, this closure part and this flange portion are formed integrally as the single and unitary element together, and this trunk portion, this closure part and this flange portion are processed this trunk portion with pressure-sizing and had discontinuous crystal grain stream from this flange portion to this trunk portion owing to squeezing to draw.
As used herein, term " pressure-sizing processing " is meant by using mould to exert pressure to improve dimensional accuracy to workpiece.Also as used herein, term " flange " typically refers to from the radially outwards outstanding part of the outer surface of trunk portion.Term " seals " part of the end that only refers to seal trunk portion.Unless explanation in addition in this manual, term " flange " be meant and be used for sealing trunk portion the end seal integrally formed part.
From disclosing the preferred embodiments of the present invention following detailed description in conjunction with the accompanying drawings, these and other objects of the present invention, feature, aspect and advantage will become obvious for those skilled in the art.
Description of drawings
With reference now to forming the originally accompanying drawing of original disclosed part:
Fig. 1 be a series of rough schematic views (A) to (C), be illustrated in according to the sequence of steps in the flanged pin element forming method of first embodiment of the invention with cross section;
Fig. 2 is an exploded cross section views, is illustrated in the major part according to the flanged pin element forming apparatus that uses in the first embodiment of the present invention;
Fig. 3 is the simplified schematic cross-sectional view of the drift seen of the section line 3-3 along Fig. 2;
Fig. 4 is the simplified schematic cross-sectional view of the pressure-sizing processing mold seen of the section line 4-4 along Fig. 2;
Fig. 5 is the simplified schematic cross-sectional view of the pressure-sizing processing mold of variation, the variation of illustrated pressure-sizing processing mold before illustrating;
Fig. 6 be a series of rough schematic views (A) to (C), be illustrated in according to the sequence of steps in the flanged pin element forming method of second embodiment of the invention with cross section;
Fig. 7 is an a pair of rough schematic view (A) and (B), is illustrated in according to the sequence of steps in the flanged pin element forming method of third embodiment of the invention with cross section;
Fig. 8 is a rough schematic view, with cross section major part according to the flanged pin element forming apparatus of the first exemplary variations example of third embodiment of the invention is shown;
Fig. 9 is a pair of rough schematic view by the workpiece material of warm forging (warm forging) production, the view of Fig. 9 (A) is the cross-sectional view of the workpiece material seen of the section line 9A-9A of the view (B) along Fig. 9, and the view of Fig. 9 (B) is the cross-sectional view of the workpiece material seen of the section line 9B-9B of the view (A) along Fig. 9;
Figure 10 is a pair of rough schematic view of the state compacted under goods after the flange portion moulding, the view of Figure 10 (A) is the cross-sectional view of the moulded products seen of the section line 10A-10A of the view (B) along Figure 10, and the view of Figure 10 (B) is the cross-sectional view of the moulded products seen of the section line 10B-10B of the view (A) along Figure 10;
Figure 11 is a rough schematic view, with cross section major part according to the flanged pin element forming apparatus of the second exemplary variations example of third embodiment of the invention is shown;
Figure 12 is a pair of rough schematic view by the workpiece material of warm forging production, the view of Figure 12 (A) is the cross-sectional view of the workpiece material seen of the section line 12-12 of the view (B) along Figure 12, and the view of Figure 12 (B) is the vertical view of illustrated workpiece material in the view (A) at Figure 12;
Figure 13 is a pair of rough schematic view of the state compacted under goods after the flange portion moulding, the view of Figure 13 (A) is the cross-sectional view of the moulded products seen of the section line 13-13 of the view (B) along Figure 13, and the view of Figure 13 (B) is the vertical view of illustrated moulded products in the view (A) at Figure 13;
Figure 14 is a pair of rough schematic view by the workpiece material of warm forging production, the view of Figure 14 (A) is the cross-sectional view of the workpiece material seen of the section line 14-14 of the view (B) along Figure 14, and the view of Figure 14 (B) is the vertical view of illustrated workpiece material in the view (A) at Figure 14;
Figure 15 is a pair of rough schematic view of the state compacted under goods after the flange portion moulding, the view of Figure 15 (A) is the cross-sectional view of the moulded products seen of the section line 15-15 of the view (B) along Figure 15, and the view of Figure 15 (B) is the vertical view of illustrated moulded products in the view (A) at Figure 15;
Figure 16 be a series of rough schematic views (A) to (C), be illustrated in according to the sequence of steps in the flanged pin element forming method of fifth embodiment of the invention with cross section;
Figure 17 is that a series of rough schematic views (A) are to (E), be illustrated in according to the sequence of steps in the flanged pin element forming method of sixth embodiment of the invention with cross section, wherein: the figure of Figure 17 (A) illustrates the set condition of moulding material, the figure of Figure 17 (B) is illustrated in the interim halted state in the commitment of pressure-sizing procedure of processing, the figure of Figure 17 (C) is illustrated in the flange completed state under the interim halted state, the figure of Figure 17 (D) illustrates the state of finishing pressure-sizing processing, and the figure of Figure 17 (E) illustrates the state that can discharge moulded products;
Figure 18 be a series of rough schematic views (A) to (E), be illustrated in according to the sequence of steps in the flanged pin element forming method of seventh embodiment of the invention with cross section;
Figure 19 is a rough schematic view, with cross section major part according to the shaped device of eighth embodiment of the invention is shown;
Figure 20 be a series of rough schematic views (A) to (D), be illustrated in according to the sequence of steps in the flanged pin element forming method of ninth embodiment of the invention with cross section; And
Figure 21 is the simplification cross-sectional view of moulded products, and the crystal grain stream of the moulded products of any one moulding among first to the 9th embodiment according to the present invention is shown.
The specific embodiment
Referring now to description of drawings the preferred embodiments of the present invention.Those skilled in the art can find out significantly from the disclosure, to the only explanation for example of following explanation of the embodiment of the invention, rather than in order to limit the present invention who limits by appended claims and equivalent thereof.
First embodiment
At first with reference to figure 1, a series of rough schematic views (A) to (C) illustrate the flanged pin element forming method according to first embodiment of the invention.Basically, the flanged pin element forming method of first embodiment of the invention comprises provides moulding material W, and moulding material W is configured as flanged pin housing member (moulded products) Wa as described below again.The metal material that moulding material W is preferably harder, the cold forming of this metal material deformable, use explanation herein and/or thermoforming process are to form flanged pin housing member (moulded products) Wa as described below.
Moulding material W mainly comprises cylindrical shape (that is the tubulose) trunk portion 1 with interior blind hole and is out of shape to form the flange preformed part 2 of flange portion F.Trunk portion 1 and flange portion F are configured as the single and unitary member in flanged pin housing member (moulded products) Wa.For example, moulded products Wa can be used for being used in the outer shroud of the constant velocity cardan joint in the torque-transmitting mechanisms of vehicle motor.Therefore, flange preformed part 2 is arranged to be enclosed in the opening at an end place of trunk portion 1.The trunk portion 1 of this embodiment and following embodiment is used for the outer shroud of constant velocity cardan joint, so the cross section of trunk portion 1 is circular.Yet the present invention also can be applicable to other element, so the cross section of trunk portion 1 is not to be necessary for circle.Can use rectangular cross section or other irregularly shaped.
As shown in figs. 1 and 2, the major part of flanged pin element forming apparatus is consistent with first embodiment of the invention aspect cross section.The flanged pin element forming apparatus mainly comprises: drift 10 is installed on the pedestal 11; Pressure-sizing processing mold 15 is installed on the press ram 16 by supporting member 17, thereby pressure-sizing processing mold 15 can be with respect to drift 10 liftings; And flange mould 19, be used for cramping flange preformed part 2.Drift 10 main compositions " first mould ", the inner surface of the trunk portion 1 of moulding moulded material W is constructed and be arranged as to this first mould.Pressure-sizing processing mold 15 main compositions " second mould ", this second mould structure and be arranged as the outer surface of trunk portion 1 of moulding moulded material W and abuts punch 10 (" first mould ") trunk portion 1 of formed by extrusion and tension material W with the inner surface of the trunk portion 1 of moulding moulded material W.
Fig. 3 is the simplified schematic cross-sectional view along the being seen drift of section line 3-3 of Fig. 2.Fig. 4 is the simplified schematic cross-sectional view along the being seen pressure-sizing processing mold of section line 4-4 of Fig. 2.
At first explanation is used for the method for moulding flanged pin housing member.Moulding material W remains on the drift 10 (" first mould "), shown in the figure (A) of Fig. 1.Moulding material W and pressure-sizing processing mold 15 (" second mould ") are squeezed collaboratively and are drawn, shown in the figure (B) of Fig. 1.Therefore, use the surfaces externally and internally of drift 10 and 15 pressure-sizing of pressure-sizing processing mold processing trunk portion 1.2 distortion of flange preformed part are to form flange portion F, as shown in the figure (C) of Fig. 1.
Following is to be described in more detail.The flanged pin element forming apparatus that uses uses drift 10 to keep moulding material W in this case.Drift 10 has the outer surface (being also referred to as " outer molded surface " in order to illustrate simply) of the molded surface that constitutes moulding material W.Pressure-sizing processing mold 15 is used for squeezing and draws the moulding material W that is kept by drift 10, so that the surfaces externally and internally of the trunk portion 1 of pressure-sizing machine-shaping material W.Thereby pressure-sizing processing mold 15 has the inner surface (being also referred to as " interior molded surface " in order to illustrate simply) of molded surface of the outer surface of the trunk portion 1 that constitutes moulding material W.Flange mould 19 is constructed and arranged to be used for abuts punch 10 cramping flange preformed parts 2, as shown in Figure 2, and to form flange portion F (seeing the figure (C) of Fig. 1).
Pressure-sizing processing mold 15 is installed on the press ram 16 by supporting member 17, so that with respect to drift 10 liftings.Pressure-sizing processing mold 15 is to have to be used for the annular construction member of centralized positioning opening 18 of trunk portion 1 of formed by extrusion and tension material W, and moulding material W presses the outer surface of drift 10 whereby, as shown in Fig. 2 and 4.Yet interior molded surface is not limited to curved surfaces, and can be the surface with different shape.The cardinal principle Lower Half of opening 18 in the present embodiment comprises tapering part 18a, and the cardinal principle first half of opening 18 in the present embodiment comprises cylindrical shape part 18b.Use tapering part 18a for the ease of crowded the drawing of moulding material W.For moulding material W pressure-sizing is worked into predetermined outside diameter and uses cylindrical shape part 18b.
Selectively, as shown in Figure 5, if desired and/or wish that then the cylindrical shape part 18b of the opening 18 of pressure-sizing processing mold 15 can cancel basically.Specifically, tapering part 18a may extend into arch section 18c, thereby intersection point has and corresponding inside dimension of the size and dimension of moulded products Wa (diameter or width) and shape.Thereby arch section 18c has predetermined radius R, and tapering part 18a tilts point-blank away from arch section 18c.
In the present embodiment, flange mould 19 is arranged on the press ram 16, and its lower surface is to form the flat plate type member of pushing surface 20.Yet those skilled in the art can know obviously that from the disclosure other structure is possible.
Preferably, as shown by dashed lines taking off in the top flanged pin element forming apparatus that member 21 is arranged in pressure-sizing processing mold 15 for example, in Fig. 1 so that after moulding, take off moulding material W from drift 10.Taking off member 21 can be spring loaded, and by the spring 22 that is arranged in rear end to the center application of force.The end that takes off member 21 is conical surface preferably, thereby is convenient to passing through of moulding material W.
Flange preformed part 2 is configured such that preferably the outer diameter D 1 of flange preformed part 2 is equal to or less than the outer diameter D 2 of trunk portion 1, as shown in Figure 2.More preferably less than the minimum diameter of opening 18, the outer diameter D 2 of trunk portion 1 is greater than the minimum diameter of opening 18 for the outer diameter D 1 of flange preformed part 2.Be convenient to flange preformed part 2 thus and enter into opening 18, more easily carry out pressure-sizing processing by squeezing to draw against the periphery of trunk portion 1, this periphery has the big slightly external diameter of internal diameter of ratio open 18.Thereby, when produced according to the invention, in the moulding of moulded products Wa, can prevent to reduce precision.
In the present embodiment, preferably, after and then the whole length of trunk portion 1 is processed in pressure-sizing processing mold 15 pressure-sizing, or pressure-sizing processing mold 15 is being when moving with respect to moulding material W, and the flange mould 19 of moulding flange preformed part 2 carries out the technology of cramping flange preformed part 2.Also can be during the pressure-sizing processing technology of being undertaken by pressure-sizing processing mold 15 carry out technology midway by flange mould 19 crampings.
Therefore, flange mould 19 can be arranged in press ram 16 under (dire ctly below), as shown in fig. 1, thus the space between flange mould 19 and pressure-sizing processing mold 15 provides the drift 10 that is enough to allow to follow moulding material W to enter distance in the space.Although do not draw, flange mould 19 also can be arranged in the position apart from this slide block one segment distance of press ram 16 belows, and when the drift 10 of following moulding material W enters above-mentioned space, can begin the moulding of flange preformed part 2 immediately.
In other words, the cramping position of flange mould 19 cramping moulding material W can be the position of passing through of the drift 10 whole axial length pressure-sizing processing of having finished the trunk portion 1 that strides across moulding material W, perhaps can be the axial half-way along trunk portion 1.As used herein, term " passes through the position " and is meant the position that is right after after pressure-sizing processing, perhaps can be the position that occurs during the relative motion of drift 10 and pressure-sizing processing mold 15.
Below will provide the explanation of flanged pin element forming method in more detail.
At first, moulding material W is placed on the top of drift 10, and as shown in the figure (A) of Fig. 1, falls press ram 16.Moulding material W is squeezed by the tapering part 18a of pressure-sizing processing mold 15 and cylindrical shape part 18b and draws, and as shown in the figure (B) of Fig. 1, and pressure-sizing is worked into predetermined outside diameter.As a result, the outstanding bar 12 of drift 10 and the shape of groove 13 are transferred, and track or groove and gauge guiding surface are formed on the trunk portion 1 of moulding material W.The whole axial length that strides across the trunk portion 1 of moulding material W carries out this crowded drawing process, thereby the whole body that strides across the trunk portion 1 of moulding material W forms trunk portion 1 with high accuracy.
In addition, when press ram 16 descends, be molded into specific thickness as surface 20 the flange preformed parts 2 of pushing of the lower surface of flange mould 19 with the moulding material W on the drift 10.This causes the flange preformed part 2 of the moulding material W on the drift 10 to produce the moulded products Wa with flange portion F, as shown in the figure (C) of Fig. 1.
In the present embodiment, can once push in the processing, moulding material W is processed to form track or groove and gauge guiding surface by pressure-sizing, and produces flange portion F.Therefore, can obtain moulded products Wa in very simple mode.If when in another step, forming flange portion F, interim and drift 10 disengagements of moulding material W, often distortion after moulding of the shape of the inner surface of trunk portion 1 so, and precision often suffers damage.Yet, in the present embodiment, moulding material W and drift 10 need not be thrown off owing to the moulding flange, realize very high precision so stride across the whole length of trunk portion 1.
Because trunk portion 1 and flange portion F can whole change into the moulded products Wa that also comprises flange portion by carrying out in the moulding of once pushing in the processing, so flange portion needn't be burn-on later on.And owing to do not apply the heat of welding, so can form the moulded products Wa with superior strength, the goods that other type process that this moulded products Wa ratio welds with use forms are thinner and weight is lighter.And, not only can reduce cost thus, and because thermal deformation does not take place,, improve the acoustic vibration characteristic so improved precision, prevented the collision of generation universal joint, and compared with the technology of other type of using welding and to have improved the universal joint characteristic.Also can reduce the quantity of element and step.
More specifically, when obtaining moulded products by forge hot in a conventional manner, so-called draft angle (draft angle) must increase, and must remove the inside burr that produces in trunk portion 1.Therefore, the precision of moulded products reduces, and the inner surface of trunk portion often suffers damage.Yet owing to do not require the use forge hot in the present embodiment, so draft angle needn't increase, the inside of the processing of pressure-sizing easily trunk portion 1 obtains high pressure-sizing machining accuracy, and does not form decarburized layer (decarburized layer).
When press ram 16 moved upward, the end that takes off member 21 can engage moulded products Wa, and can take off from the top of drift 10.Moulded products Wa is taken off from mould by the output mechanism (not shown).
In the present embodiment, flange portion F with seal Fa and form, as shown in the figure (C) of Fig. 1, but in some cases, flange does not seal Fa, can form only to have from the outer surface of the trunk portion flange of outstanding part radially.In order to obtain this moulded products, must use moulding material W with flange preformed part 2 cylindraceous.
Second embodiment
With reference now to Fig. 6,, the flanged pin element forming method according to second embodiment will be described now.In view of the similitude between first and second embodiment, the part that the part with first embodiment of second embodiment is identical will provide the Reference numeral identical with the part of first embodiment.And, for the purpose of concise and to the point, can omit the part identical with step second embodiment and the explanation of step with part first embodiment.The figure of Fig. 6 (A) to (C) schematically illustrates flanged pin element forming method according to second embodiment of the invention with cross section.In the flanged pin element forming method according to second embodiment of the invention, flange mould 19 is by the (not shown) operation of independent-lifting mechanism, and these are different with first embodiment.
In this forming method, at first moulding material W is placed on the top of drift 10, as shown in the figure (A) of Fig. 6, and use elevating mechanism with flange mould 19 be reduced to pressure-sizing processing mold 15 near.
Then, when press ram 16 reduced, as shown in the figure (B) of Fig. 6, moulding material W was drawn to squeeze with the same way as of above-mentioned first embodiment by pressure-sizing processing mold 15.Thereby moulding material W pressure-sizing is worked into predetermined outside diameter, and track or groove and gauge guiding surface are formed on trunk portion 1.On the whole axial length of the trunk portion 1 of moulding material W, squeeze and draw.Therefore, the trunk portion 1 of moulding has high accuracy on whole length.
In the present embodiment, flange mould 19 be reduced to pressure-sizing processing mold 15 near, and exert pressure by elevating mechanism.By the pressure-sizing processing mold 15 crowded moulding material W that remain on the drift 10 that draw.Therefore, flange preformed part 2 is out of shape by the surface 20 of pushing that is the lower surface of flange mould 19, thereby flange preformed part 2 is pressed, and flange portion F is molded into specific thickness.Particularly, the part 2 of flange preformed in the present embodiment is different with the position of first embodiment by the position of cramping.When the rear surface of the end of drift 10 and pressure-sizing processing mold 15 adds man-hour substantially simultaneously on time in pressure-sizing, flange preformed part 2 is by flange mould 19 crampings.In this manual, term " aligning " is meant rear surface (in the face of the upper surface of the flange mould 19) situation that coupling is arranged on the direction of motion of these two elements of the end (top free end face) and the pressure-sizing processing mold 15 of drift 10.
After forming flange portion F, flange mould 19 is risen by elevating mechanism when press ram 16 is raised or after finishing moulding.By by means of be arranged in flange mould 19 hands-off positions in the member 21 that takes off engage moulded products Wa and article and drift 10 thrown off, take off moulding material W.Article are taken off from mould by the output mechanism (not shown).
Also mode that in the present embodiment can be identical with first embodiment pressure-sizing machine-shaping material W in pressing operation forms track or groove and gauge guiding surface, and realizes various other effects.
The 3rd embodiment
With reference now to Fig. 7,, the flanged pin element forming method according to the 3rd embodiment will be described now.In view of the similitude between former embodiment and the 3rd embodiment, the part identical with part former embodiment the 3rd embodiment will provide the identical Reference numeral of part with former embodiment.And, for the purpose of concise and to the point, can omit the part identical with step the 3rd embodiment and the explanation of step with part former embodiment.The figure of Fig. 7 (A) and figure (B) are with the flanged pin element forming method of cross section indicative icon according to third embodiment of the invention.Flanged pin element forming method according to the 3rd embodiment is designed to the flange portion F in flange mould 19 is trimmed to the regulation shape.Thereby the flange mould 19 of the present invention the 3rd embodiment has moulding recess or surface 23.
If applying on the surface to form at for example pressure of flange mould 19 is used for the moulding recess 23 of moulding flange, as shown in the figure (A) of Fig. 7, then the flange preformed part 2 of moulding material W can be by abuts punch 10 ground crampings.Thereby flange preformed part 2 can form and moulding recess 23 corresponding regulation shapes.Therefore, offer for example moulding recess 23 if will be used for forming the recess 24 of the leader 25 of the constant velocity cardan joint that connects torque-transmitting mechanisms and other element, then the moulded products Wa after moulding will have leader 25, and will improve the easness of assembling and machinability.
For this embodiment, can use such as those following various variation.In these variation, moulding recess 23 is arranged in this flange mould 19, and moulding recess 23 is used for forming flange preformed part 2.
The first exemplary variations example of the 3rd embodiment
With reference now to Fig. 8 to 10,, the flanged pin element forming method according to the first exemplary variations example of the 3rd embodiment will be described now.In view of the similitude between this variation of former embodiment and the 3rd embodiment, similar part will provide the identical Reference numeral of part with former embodiment.And, for the purpose of concise and to the point, can omit explanation this variation and part former embodiment and similar part of step and step.
Fig. 8 is a rough schematic view, with cross section major part according to the flanged pin element forming apparatus of the first exemplary variations example of third embodiment of the invention is shown.Fig. 9 is a pair of rough schematic view by the workpiece material of warm forging production, the view of Fig. 9 (A) is the cross-sectional view of the workpiece material seen of the section line 9A-9A of the view (B) along Fig. 9, and the view of Fig. 9 (B) is the cross-sectional view of the workpiece material seen of the section line 9B-9B of the view (A) along Fig. 9.Figure 10 is a pair of rough schematic view of the state compacted under goods after the flange portion moulding, the view of Figure 10 (A) is the cross-sectional view of the moulded products seen of the section line 10A-10A of the view (B) along Figure 10, and the view of Figure 10 (B) is the cross-sectional view of the moulded products seen of the section line 10B-10B of the view (A) along Figure 10.
The moulded products Wa of this exemplary variations example has the flange portion F that radially outwards evenly extends from trunk portion 1, as the view (A) of Figure 10 with (B).Moulding material W is that flange preformed part 2 has the even specific thickness t shown in the view (A) at Fig. 9
1Material.As among the former embodiment, flange preformed part 2 is arranged in the top of trunk portion 1, as the view (A) of Fig. 9 with (B).
When flange preformed part 2 moulding material W squeezed by pressure-sizing processing mold 15 draw after or when entering the moulding recess 23 of flange mould 19 when drawing by pressure-sizing processing mold 15 is crowded, ledge radially outward along flange preformed part 2 is limited by moulding recess 23, and form flange portion F with discoid, plate-like (disk), as seen in Figure 10.
The second exemplary variations example of the 3rd embodiment
With reference now to Figure 11 to 13,, the flanged pin element forming method according to the second exemplary variations example of the 3rd embodiment will be described now.In view of the similitude between this variation of former embodiment and the 3rd embodiment, similar part will provide the identical Reference numeral of part with former embodiment.And, for the purpose of concise and to the point, can omit explanation this variation and part former embodiment and similar part of step and step.
Figure 11 is a rough schematic view, with cross section major part according to the flanged pin element forming apparatus of the second exemplary variations example of third embodiment of the invention is shown.Figure 12 is a pair of rough schematic view by the workpiece material of warm forging production, the view of Figure 12 (A) is the cross-sectional view of the workpiece material seen of the section line 12-12 of the view (B) along Figure 12, and the view of Figure 12 (B) is the vertical view of illustrated workpiece material in the view (A) at Figure 12.Figure 13 is a pair of rough schematic view of the state compacted under goods after the flange portion moulding, the view of Figure 13 (A) is the cross-sectional view of the moulded products seen of the section line 13-13 of the view (B) along Figure 13, and the view of Figure 13 (B) is the vertical view of illustrated moulded products in the view (A) at Figure 13;
The moulded products Wa of this exemplary variations example has the flange portion F that has a plurality of radial projection 26, as shown in Figure 13.Specifically, projection 26 is radially outstanding from trunk portion 1.Moulding material W is that flange preformed part 2 has even specific thickness t
2Material, as the view (A) of Figure 12 with (B).As among the former embodiment, flange preformed part 2 is arranged in the top of trunk portion 1, as the view (A) of Figure 13 with (B).
Thereby flange mould 19 uses the moulding recess 23 that is formed with projection 26 corresponding a plurality of recesses in the inner surface of mould.When flange preformed part 2 is pressed, form the flange portion F that has with the corresponding projection 26 of the shape of moulding recess 23 in flange mould 19.
The 3rd exemplary variations example of the 3rd embodiment
With reference now to Figure 14 to 15,, the flanged pin element forming method according to the 3rd exemplary variations example of the 3rd embodiment will be described now.In view of the similitude between this variation of former embodiment and the 3rd embodiment, similar part will provide the identical Reference numeral of part with former embodiment.And, for the purpose of concise and to the point, can omit explanation this variation and part former embodiment and similar part of step and step.
Figure 14 is a pair of rough schematic view by the workpiece material of warm forging production, the view of Figure 14 (A) is the cross-sectional view of the workpiece material seen of the section line 14-14 of the view (B) along Figure 14, and the view of Figure 14 (B) is the vertical view of illustrated workpiece material in the view (A) at Figure 14.Figure 15 is a pair of rough schematic view of the state compacted under goods after the flange portion moulding, the view of Figure 15 (A) is the cross-sectional view of the moulded products seen of the section line 15-15 of the view (B) along Figure 15, and the view of Figure 15 (B) is the vertical view of illustrated moulded products in the view (A) at Figure 15.
The moulded products Wa of this exemplary variations example is to use the flange mould 19 identical substantially with the flange mould that uses and the goods that obtain in the above-mentioned second exemplary variations example.Thereby flange portion F forms the shape that three projections 27 are given prominence to from trunk portion 1.Moulding material W is the material that flange preformed part 2 has excess stock, and as the view (A) of Figure 14 with (B), this excess stock is in the part of the flange portion F that is used for forming trunk portion 1 top, as the figure (A) of Figure 15 with (B).
When in flange preformed part 2 is being in the flange mould 19 of this structure, being pressed, form bigger flange portion F, therefore when the moulding goods will be by machined, can reduce machining allowance by excess stock.The part with excess stock of arranging in flange preformed part 2 needn't require along circumferential arrangement can form irregular shaped flange part F by arrange excess stock in non-homogeneous mode in even position.
The 4th embodiment
In the above-described embodiments, form irregular shaped flange part F by layout excess stock in flange preformed part 2, but also can form irregular shaped flange part F by squeezing the periphery that draw flange preformed part 2, use flange mould 19 to form flange portion F and finishing flange portion F.Machined, plastic working and other method can be used as method for trimming.
This structure allows promptly to form irregular shaped flange part F with plain mode.
The 5th embodiment
With reference now to Figure 16,, the flanged pin element forming method according to the 5th embodiment will be described now.In view of the 5th embodiment and before similitude between the embodiment, the 5th embodiment and part former embodiment similarly part will provide and the identical Reference numeral of part of embodiment in the past.And, in order to omit the similar part of the 5th embodiment and part former embodiment and step and the explanation of step for the purpose of concise and to the point.The figure of Figure 16 (A) shows flanged pin element forming method according to fifth embodiment of the invention with cross sectional representation to figure (C).
Before above-mentioned among the embodiment, moulding material W is kept by drift 10, and remains on moulding material W on the drift 10 and squeezed by pressure-sizing processing mold 15 and draw, but opposed also is possible.Specifically, moulding material W can be kept by mould 15, and can come the formed by extrusion and tension material by the cooperation of mould 15 and drift 10.In other words, first and second moulds of the foregoing description can use reversedly to carry out molding procedure.
The flanged pin element forming apparatus of present embodiment has the pressure-sizing processing mold 15 that keeps moulding material W, as shown in the figure (A) of Figure 16.Drift 10 by with the cooperating and formed by extrusion and tension material W of pressure-sizing processing mold 15, with the surfaces externally and internally of pressure-sizing processing trunk portion 1, as shown in the figure (B) of Figure 16.Flange mould 19 forms flange portion F by cramping flange preformed part 2 between the surface 20 of drift 10 and flange mould 19, as shown in the figure (C) of Figure 16.
Therefore, moulding material W is located in the bottom of pressure-sizing processing mold 15, as shown in the figure (A) of Figure 16.When press ram 16 reduced, moulding material W was by tapering part 18a and the cylindrical shape part 18b and drift 10 crowded the drawing of pressure-sizing processing mold 15, as shown in the figure (B) of Figure 16.Thereby trunk portion 1 pressure-sizing of moulding material W is worked into predetermined outside diameter.
In addition, when press ram 16 reduces, be that the surface 20 flange preformed parts 2 with moulding material W of pushing of the upper surface of flange mould 19 form the flange portion F with specific thickness, as shown in the figure (C) of Figure 16.
Also in the present embodiment, can be in pressing operation carry out pressure-sizing processing, track or groove and the moulding of gauge guiding surface and the moulding of flange of moulding material W in the mode identical with embodiment before above-mentioned.
The 6th embodiment
With reference now to Figure 17,, the flanged pin element forming method according to the 6th embodiment will be described now.In view of the 6th embodiment and before similitude between the embodiment, the 6th embodiment and part former embodiment similarly part will provide and the identical Reference numeral of part of embodiment in the past.And, in order to omit the similar part of the 6th embodiment and part former embodiment and step and the explanation of step for the purpose of concise and to the point.The figure of Figure 17 (A) is to scheming (E) with the flanged pin element forming method of cross section indicative icon according to sixth embodiment of the invention.
The figure of Figure 17 (A) illustrates the set condition of moulding material, and the figure of Figure 17 (B) is illustrated in the interim halted state in the commitment of pressure-sizing procedure of processing.The figure of Figure 17 (C) is illustrated in the flange completed state under the interim halted state.The figure of Figure 17 (D) illustrates the state of finishing pressure-sizing processing.The figure of Figure 17 (E) illustrates the state that can discharge moulded products.
In the above-described embodiments, because whole moulding material W is processed by pressure-sizing, and flange preformed part 2 after this used flange mould 19 abuts punch 10 simply and by cramping and compression forming flange portion F, so the flange preformed part 2 of moulding material W when only supporting by drift 10 by cramping.Therefore, the inner surface from flange preformed part 2 outwards swells to the bight of the inner surface of trunk portion 1.Thereby, producing the hole of causing by so-called contraction vestige (shrink mark), whole moulding material W moves along forming direction from the INTRM intermediate point of the processing that forms flange portion F, has reduced formed precision.In addition, moulding material W can not be processed into the flange portion F flat, good moulding that has with the surface of axis quadrature, and may require to have the flange preformed part 2 of remarkable volume, so that the external diameter that obtains wishing.
For this reason, in the present embodiment, stopped under the state of the pressure-sizing processing mold 15 top processing of pressure-sizing of the trunk portion 1 of moulding material W therein temporarily, the top of the trunk portion 1 of moulding material W is kept from periphery by pressure-sizing processing mold 15, the motion of restriction moulding material W, and flange preformed part 2 is in this state by flange mould 19 crampings and be compressed to form flange portion F.
Following is to be described in more detail.At first, moulding material W is arranged on the top of drift 10, and press ram 16 is lowered, and carries out the pressure-sizing processing first time for specific length in the axial direction, and stops technology then, as shown in the figure (A) of Figure 17.Moulding material W is squeezed by the tapering part 18a of pressure-sizing processing mold 15 and cylindrical shape part 18b and draws, and as shown in the figure (B) of Figure 17, and specific length in the axial direction is worked into predetermined outside diameter by pressure-sizing.
The stop position of pressure-sizing processing mold 15 is the position aimed at, the rear surface of the end of drift 10 and pressure-sizing processing mold 15 preferably.In this position, flange portion F can be received by drift 10, and is also received by pressure-sizing processing mold 15 between the flange portion shaping period, and uses the flat rear surface 15a of pressure-sizing processing mold 15 can form flange portion F.Therefore, can prevent to make flange portion F more flat, and can further improve the precision of moulded products Wa by the generation of shrinking the hole that produces.
Further reduce press ram 16 then, as shown in the figure (D) of Figure 17, and the remainder of moulding material W stands the processing of pressure-sizing for the second time.The inner surface of the shape of the groove 13 of drift 10 and outstanding bar 12 being transferred to trunk portion 1 is processed in pressure-sizing for the second time.Thereby, wherein be formed with the moulded products Wa of track or groove and gauge guiding surface.Squeeze and to draw the whole length of the trunk portion 1 that strides across moulding material W thus in the axial direction to carry out, and stride across whole trunk portion 1 and can realize very high precision.
Except that the effect that realizes in the above-described embodiments, the shape of the inner surface of the trunk portion 1 that the present embodiment permission forms remains unchanged, keeps permissible accuracy and stride across whole trunk portion 1 to realize very high precision.This is because process after first time pressure-sizing processing and be stopped, and carries out pressure-sizing processing second time, thus with pressing operation pressure-sizing machine-shaping material W, formation track or groove and a gauge guiding surface, reach the formation flange portion.
At last, raised and flange mould 19 as shown in the figure (E) of Figure 17, can take off moulded products Wa from mould by using output mechanism (not shown) etc. when moulded products Wa on drift 10 separates when flange mould 19.After the moulding of flange portion F, side by side can rise flange mould 19 immediately or with the pressure-sizing processing second time.
The 7th embodiment
With reference now to Figure 18,, the flanged pin element forming method according to the 7th embodiment will be described now.In view of the 7th embodiment and before similitude between the embodiment, will provide and the identical Reference numeral of part of embodiment in the past with the part of similar the 7th embodiment of the part of former embodiment.And, in order to omit for the purpose of concise and to the point and the part of similar the 7th embodiment of the part of embodiment in the past and step and the explanation of step.The figure of Figure 18 (A) shows flanged pin element forming method according to seventh embodiment of the invention with cross sectional representation to figure (E).
In above-mentioned flanged pin element forming method, moulding material W is only kept from periphery by pressure-sizing processing mold 15 between the flange portion shaping period.Therefore, when pressing force was applied to moulding material W and is gone up by flange mould 19, pressure-sizing processing mold 15 may cause by accident that the position moves.Because the moulding that often influences flange portion F is unfriendly moved in this position, so pressure-sizing processing mold 15 is in the present embodiment by using fixture K to be fixed.
Fixture K can be the fixture of any kind, as long as pressure-sizing processing mold 15 can be supported in the fixed position.Fixture K preferably includes die cushion 30.
Die cushion 30 preferably includes around the cushion pad 31 of the side face coaxial arrangement of drift 10 and be used for supporting a plurality of cushion pins 32 of cushion pad 31 when cushion pad 31 can move up and down.When pressure-sizing processing mold 15 during in above-mentioned rest position, cushion pad 31 moves upward with from following support pressure-sizing processing mold 15, as shown in the figure (C) of Figure 18.Even moulding material W is pushed by flange mould 19, pressure-sizing processing mold 15 also flatly keeps initial stop position.
Fixture K also can comprise hydraulic mechanism, spring, gas buffer or other device that uses in the closed mould cover.And the stopper element (not shown) can be arranged in the horizontal of drift 10, presents extrusion position when pressure-sizing processing mold 15 stops, from following support pressure-sizing processing mold 15.
In this forming method, moulding material W is to be arranged on the top of drift 10 with mode identical in above-mentioned the 6th embodiment, as shown in the figure (A) of Figure 18.Thereby press ram 16 reduces, as shown in the figure (B) of Figure 18.The part of the trunk portion 1 of moulding material W is squeezed by pressure-sizing processing mold 15 and is drawn.Carry out the pressure-sizing processing first time, handle being stopped then.The outer surface of the part of the trunk portion 1 of moulding material W pressure-sizing thus is worked into predetermined outside diameter.
Secondly, cushion pad 31 is risen with from following support pressure-sizing processing mold 15, as shown in the figure (C) of Figure 18 to pressure-sizing processing mold 15 by cushion pins 32.Under holding state, flange mould 19 reduces, and moulding material W is pressed, and forms flange portion F.In this structure, pressure-sizing processing mold 15 is kept consistently by die cushion 30 during the processing of being undertaken by flange mould 19, and the pressure-sizing processing mold 15 in the week of the trunk portion of support moulding material W is not moved.Therefore moulding can be carried out reposefully, and the precision of moulded products Wa can be improved.As the flange preformed part 2 of section bar material W by pushing surface 20 when pushing as the lower surface of flange mould 19, material uses the rear surface 15a of pressure-sizing processing mold 15 to be pressed and is out of shape (figure (C) that sees Figure 18), and flat collar part F can be formed into specific thickness.
After forming flange portion F, press ram 16 reduces once more, and the trunk portion of moulding material W uses pressure-sizing processing mold 15 to stand the processing of pressure-sizing for the second time by squeezing to draw, as shown in the figure (D) of Figure 18.The whole trunk portion of moulding material W pressure-sizing is thus processed and is worked into predetermined outside diameter, and track or groove and gauge guiding surface are formed on the inner surface.
At last, flange mould 19 is raised, and by using the output mechanism (not shown) to take off moulded products Wa from mould, as shown in the figure (E) of Figure 18.
In the present embodiment, but with mode identical in above-mentioned first embodiment pressure-sizing machine-shaping material W in pressing operation, and can form track or groove and gauge guiding surface.
The 8th embodiment
With reference now to Figure 19,, the flanged pin element forming apparatus according to the 8th embodiment will be described now.In view of the 8th embodiment and before similitude between the embodiment, will provide and the identical Reference numeral of part of embodiment in the past with the part of similar the 8th embodiment of the part of former embodiment.And, in order to omit for the purpose of concise and to the point and the part of similar the 8th embodiment of the part of embodiment in the past and step and the explanation of step.
In this flanged pin element forming apparatus, pressure-sizing processing mold 15 is provided with the recess 33 that is used for forming flange portion F.Specifically, recess 33 is formed among the rear surface 15a of pressure-sizing processing mold 15, pressure is applied on the moulding material W by press ram 16 at this place.Thereby flange portion F is processed to the regulation shape in recess 33.
If pressure-sizing processing mold 15 crampings that flange preformed part 2 has recess 33 by use are between flange mould 19 and drift 10, as shown in Figure 19, then flange preformed part 2 is pressed in the closed area and forms.Therefore, the prolongation of flange preformed part 2 is by recess 33 restrictions, and flange preformed part 2 forms the flange portion F with recess 33 corresponding given shapes, can form very high-precision flange portion F.
When recess 33 is arranged in the pressure-sizing processing mold 15 and forms flange preformed part 2, can form above-mentioned such as in the various variation shown in Figure 13 to 15 according to recess 33.
The 9th embodiment
With reference now to Figure 20,, the flanged pin element forming method according to the 9th embodiment will be described now.In view of the 9th embodiment and before similitude between the embodiment, will provide and the identical Reference numeral of part of embodiment in the past with the part of similar the 9th embodiment of the part of former embodiment.And, in order to omit for the purpose of concise and to the point and the part of similar the 9th embodiment of the part of embodiment in the past and step and the explanation of step.The figure of Figure 20 (A) to (D) schematically shows flanged pin element forming method according to ninth embodiment of the invention with cross section.
In above-mentioned the 6th to the 8th embodiment, moulding material W remains on the drift 10, and when remaining on the drift 10 by pressure-sizing processing mold 15, carries out the first and second pressure-sizing processing technologys for moulding material W.Yet reverse arrangement also is possible; That is, moulding material W can be kept by pressure-sizing processing mold 15, and moulding material W can draw by the cooperation of pressure-sizing processing mold 15 and drift 10 is crowded.
Be placed on the bottom of pressure-sizing processing mold 15 and press ram 16 when being lowered as section bar material W, as shown in the figure (A) of Figure 20, moulding material W is squeezed to draw with pressure-sizing by the tapering part 18a of pressure-sizing processing mold 15 and cylindrical shape part 18b and drift 10 and is worked into predetermined outside diameter, as shown in the figure (B) of Figure 20.This pressure-sizing processing is the processing of pressure-sizing for the first time, have only axial quilt to squeeze whereby and draw, and moulding material W is in flange preformed part 2 from the outstanding state of the rear surface 15a of pressure-sizing processing mold 15 along the axial part of the surfaces externally and internally of trunk portion 1 along moulding material W.
After finishing the processing of pressure-sizing for the first time, the processing operation of drift 10 is stopped temporarily; Flange mould 19 is risen by the drive unit (not shown) at stopping period, as shown in the figure (C) of Figure 20; Flange preformed part 2 abuts punch 10 are by cramping; The surface 20 flange preformed parts 2 with moulding material W of pushing as the rear surface of flange mould 19 form the flange portion F with specific thickness.
When finishing the moulding of flange portion F, flange mould 19 is reduced by the drive unit (not shown), and as shown in the figure (D) of Figure 20, and drift 10 is reduced to carry out the pressure-sizing processing second time by press ram 16.
In the present embodiment, with same way as in above-mentioned first embodiment in pressing operation, but pressure-sizing machine-shaping material W can form track or groove and gauge guiding surface, and can form flange portion.
As seeing among Figure 21, the moulded products Wa that obtains in above-mentioned first to the 9th embodiment does not use machining and welding ground to produce substantially, thereby forms discontinuous crystal grain stream G in the metal material of moulded products Wa.Moulded products Wa draws by squeezing, pressure-sizing processing, and cramping forms, and can obtain having from flange portion F to trunk portion the flanged pin housing member that 1 discontinuous crystal grain flows.In other words, the surfaces externally and internally of moulding material W that flange preformed part 2 is arranged in an end place of trunk portion 1 draws pressure-sizing processing by squeezing, and seals the high strength moulded products that forms by cramping flange preformed part 2 from trunk portion 1 to continuous the making of flange portion F to produce crystal grain stream G.
As using herein, term " crystal grain stream " be from the side surface of flange portion F to the projected direction of flange portion F extend to the inside of flange portion F, in the interior curve of flange portion F with return, arrive then the continuous lines of trunk portion 1, as shown in Figure 21.In other words, discontinuous crystal grain stream G at least in part by extend outwardly among the flange portion F from first side at the flange portion F of trunk portion 1, inwardly the continuous lines of replication limits in flange portion F.Discontinuous crystal grain stream G further extends from the inboard of flange portion F, and finishes at the inner surface place of trunk portion 1, as shown in Figure 21.
Therefore, moulded products Wa has the discontinuous crystal grain stream G that some place does not halfway cut off, and has the superior strength about transmitting torque.Therefore, can make moulded products Wa thinner and weight is lighter, and also reduce cost.Specifically, because crystal grain stream 1 is continuous from flange portion F to trunk portion, so can increase the intensity of the flange portion F that the stress most probable concentrates.
According to the embodiments of the present invention, can realize enough accuracy and not machine-shaping goods Wa (flanged pin housing member) on the whole, because the trunk portion 1 of moulding material W is squeezed by first and second moulds and is drawn, at least inner surface is processed by pressure-sizing, and flange preformed part by cramping between first mould and flange mould with the formation flange portion.And, because moulded products Wa (flanged pin housing member) can form and do not used forge hot by the cold-peace warm forging, thus the formation of decarburized layer can be reduced, and can obtain having high accuracy and being not inclined to the moulded products with the intensity that reduces.In addition, owing to needn't so can reduce the quantity of element, can shorten the lead time, and make manufacturability favourable at mounting flange after the moulding or lid member from the cost aspect.
And, as mentioned above, technology is stopped temporarily and is begun at this stopping period the moulding of flange under the state of specific length if be worked in the trunk portion pressure-sizing of moulding material, then under remaining on state in second mould, moulding material can form flange, the rear surface of second mould can be used to form flange, can not shrink ground with extraordinary precision and in moulding material with plain mode and forms flange.
Although only selected preferred embodiment the present invention is described, by the disclosure, it will be apparent to those skilled in the art that and to carry out variations and modifications herein and do not break away from the scope of the present invention that in appended claims, limits.For example, on demand and/or wish to change the position or the orientation of various elements.Illustrate the element that directly is connected to each other or contacts to have the intermediate structure that is arranged between them.In the above-described embodiments, for example, flat substantially flange portion F is formed on the end place of trunk portion 1, but other may comprise that axle is from the outstanding situation of flange portion F as the outer shroud of constant velocity cardan joint.Even under the situation of described housing, also can obtain such moulded products Wa with axle.Yet, in this case, must prevent the axle push by the flange mould.The moulding material W of embodiment is used for forming the outer shroud of constant velocity cardan joint, but is not limited in this respect, and can use any material, as long as moulding material W is any material of flange preformed part 2 that has trunk portion 1 and be arranged to seal an end of trunk portion 1.
Thereby above according to an embodiment of the invention explanation only provides for explanation, and is not the present invention who is limited by appended claims and its equivalent in order to limit.
Cross reference for related application
The priority of the Japanese patent application No.2005-356972 that the application requires to submit on December 9th, 2005, the No.2005-356978 that submits on December 9th, 2005, the No.2006-219741 that submits on August 11st, 2006.The whole open of Japanese patent application No.2005-356972,2005-356978 and 2006-219741 is contained in this by reference.
Claims (12)
1. flanged pin element forming method that is used for forming the flanged pin housing member, it comprises:
Keep having the flange preformed moulding material partly of the trunk portion of being arranged in one end;
First mould that use has outer molded surface comes pressure-sizing to process the inner surface at least of described trunk portion with second mould with interior molded surface;
Cramping flange preformed part between described first mould and flange mould forms flange portion with the described end in described trunk portion;
The described inner surface of described trunk portion is carried out pressure-sizing processing to be comprised: at first the specific length of the initial part of the described inner surface of described trunk portion is carried out pressure-sizing processing; After the cramping that carries out described flange preformed part was with the described end formed described flange in described trunk portion, the remainder of the described inner surface of described trunk portion was processed in pressure-sizing more then.
2. flanged pin element forming method according to claim 1 is characterized in that,
When in the face of the end of the rear surface of described second mould of described flange mould and described first mould on time, utilize described flange mould to carry out described flange preformed cramping partly.
3. flanged pin element forming method according to claim 2 is characterized in that,
Under the halted state that described second mould is supported by fixture, carry out the cramping of described flange preformed part.
4. flanged pin element forming method according to claim 3 is characterized in that,
Maintenance to described moulding material comprises that the size of the described flange preformed part of described moulding material is set to be equal to or less than described trunk portion external diameter.
5. flanged pin element forming method according to claim 4 is characterized in that,
To the maintenance of described moulding material be included in be shaped after the corresponding position of flange shape the described flange preformed of described moulding material partly is provided with excess stock.
6. flanged pin element forming apparatus that is used for forming the flanged pin housing member, it comprises:
First mould, it comprises outer molded surface, the inner surface of the trunk portion of the moulding material that is constructed and arranged to be shaped, described moulding material has the flange preformed part at an end place that is arranged in described trunk portion;
Second mould, it comprises interior molded surface, be constructed and arranged to cooperate with described first mould with when described first mould and the described second mould relative motion outside described first mould described molded surface and squeeze the described trunk portion of drawing described moulding material; And
The flange mould is constructed and arranged to against described first mould and the described flange preformed part of the described moulding material of cramping, forms flange portion with the end in described trunk portion;
Described flange mould also is constructed and arranged to one of described first and second moulds and only the described trunk portion of described moulding material is set to the described flange preformed of cramping cramping position partly along the position that the axial part of described trunk portion is carried out pressure-sizing processing.
7. flanged pin element forming apparatus according to claim 6 is characterized in that,
Described flange mould also is constructed and arranged to one of described first and second moulds and finishes the cramping position that the position is set to the described flange preformed part of cramping of passing through to the pressure-sizing processing of the whole axial length of described trunk portion of described moulding material.
8. flanged pin element forming apparatus according to claim 6 is characterized in that,
When forming described flange portion by utilizing the described described moulding material of flange mould cramping, described second mould is remained in the fixed position by fixture.
9. flanged pin element forming apparatus according to claim 6 is characterized in that,
Described flange mould comprises the flange moulding recess that is formed on the surface, and the part of described moulding material is pressed into described recess to form described flange portion by described first mould.
10. flanged pin element forming apparatus according to claim 6 is characterized in that,
Described second mould comprises the flange moulding recess that is formed on the surface, and the part of described moulding material is pressed into described recess to form described flange portion by described first mould and described flange mould.
11. flanged pin element forming apparatus according to claim 6 is characterized in that,
Described first and second moulds also are constructed and arranged to hold described moulding material, and the described flange preformed in this moulding material partly has the size that is equal to or less than described trunk portion external diameter.
12. flanged pin element forming apparatus according to claim 11 is characterized in that,
Described first and second moulds also are constructed and arranged to hold described moulding material, and the described flange preformed in this moulding material partly is provided with excess stock so that corresponding with the described flange shape after the moulding.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005356972 | 2005-12-09 | ||
| JP2005356972 | 2005-12-09 | ||
| JP2005356978 | 2005-12-09 | ||
| JP2006219741 | 2006-08-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1978088A CN1978088A (en) | 2007-06-13 |
| CN100512995C true CN100512995C (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101403984A Expired - Fee Related CN100512995C (en) | 2005-12-09 | 2006-12-08 | Apparatus and method for forming flanged housing member |
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| Country | Link |
|---|---|
| CN (1) | CN100512995C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056223B (en) * | 2011-10-24 | 2016-03-30 | 五冶集团上海有限公司 | For the compacting tool set and preparation method thereof of field fabrication Concentric Reducers |
| CN102699189B (en) * | 2012-02-27 | 2014-07-09 | 昆山三景科技股份有限公司 | Continuous stamping die and stamping method for mobile phone camera component |
| CN102784864A (en) * | 2012-08-16 | 2012-11-21 | 大连大高阀门股份有限公司 | Process and mold for forging universal socket shell |
| MX356739B (en) * | 2012-10-23 | 2018-06-12 | Nippon Steel & Sumitomo Metal Corp | Press molding method and bottomed container. |
| DE102013105867A1 (en) * | 2013-06-06 | 2014-12-11 | Thyssenkrupp Steel Europe Ag | Method for producing a spring leg dome |
| IT201900006656A1 (en) * | 2019-05-08 | 2020-11-08 | Salvagnini Italia Spa | Bending machine for metal sheets |
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| US5374219A (en) * | 1991-05-31 | 1994-12-20 | Ntn Corporation | Outer ring for vibration proof type homokinetic joint |
| DE4411515C1 (en) * | 1994-04-02 | 1995-08-03 | Gkn Automotive Ag | Outer joint section for hemokinetic joint |
| DE19858324C1 (en) * | 1998-12-17 | 2000-03-16 | Gkn Loebro Gmbh | Method of production of motor vehicle drive homokinetic coupling outer shell involves reshaping outer sleeve and separating base section |
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