CN104175284A - Necking guiding device used for bushing press mounting - Google Patents
Necking guiding device used for bushing press mounting Download PDFInfo
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- CN104175284A CN104175284A CN201410397963.XA CN201410397963A CN104175284A CN 104175284 A CN104175284 A CN 104175284A CN 201410397963 A CN201410397963 A CN 201410397963A CN 104175284 A CN104175284 A CN 104175284A
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- lining
- reducing
- installing hole
- inner chamber
- ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
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Abstract
The invention discloses a necking guiding device used for bushing press mounting. The necking guiding device is used for symmetrically pressing a pair of bushings into the same mounting hole of an auxiliary bridge rack. The device comprises a first necking mechanism and a second necking mechanism, wherein when two bushings move in opposite directions under the pushing of a working piston rod of a pressure cylinder, the bushing penetrates through a taper inner cavity through a guide hole from one side and enters a mounting hole, and the auxiliary bushing penetrates through an auxiliary tape inner cavity through an auxiliary guide hole from the other side and enters the mounting hole; during pressing in, the peripheries of the bushing and the auxiliary bushing are folded and shrunk to preset sizes guided by guidance grooves and auxiliary guidance grooves respectively, so that the bushings can be embedded into the mounting hole. In the technology, as the guidance grooves are formed in the corresponding dense positions supported by bushing spokes and in the taper inner cavities, the flowing material is forced to be gradually guided into the stream guidance grooves, so that the preset folds are formed and the contraction ratio of the material dense positions and that of the material sparse positions are coordinated to be consistent, and further, the shortcomings and defects in the prior art are avoided, and the benefits of stable quality and no potential safety hazard of the bushings are realized after the bushings are pressed in place.
Description
Technical field
This technology relates to a kind of bushing press-mounting reducing guider using in automobile manufacturing field, relates in particular to the lining reducing guider on press-loading device in the lining installation process on the secondary crane span structure in automobile chassis front and back.
Background technology
At present, the lining of installing on the corresponding position of secondary crane span structure, the front and back of automobile chassis is nylon composite materials, because this material impact power, vibration force have stronger slowly-releasing absorbability, and mechanical strength is high, good toughness, thereby obtain general application on the corresponding position of secondary crane span structure, the front and back of automobile chassis.Due to press-fit the lining of inlaying be two structural similarities, involutory consistent size, in correspondence with each other be arranged on the same Kong Weizhong on secondary crane span structure, in order smoothly the lining of Interference size to be pressed on secondary crane span structure, when being pressed into secondary crane span structure installing hole, lining need to carry out shrink process to the external diameter of lining.For this reason, adopt corresponding reducing frock the outside dimension of lining to be tapered to the installing hole size being less than or equal on secondary crane span structure, just can reach the object that is pressed into installation.But lining is a flexible wheeled shape body, and having a pair of special-shaped spoke support and connection center and wheel rim, in external diameter wheel rim side, have depression gap slot, there is outside diameter wall thickness ununiformity, has void to have reality in whole lining.While shrinking Outer Diameter of lining, owing to being Interference size, guide, but the composite that lining is nylon, rubber, metal is mutually one though pass through the reduced scale of reducing ring, contour structures is complicated.In journey is made a slip of the tongue in precommpression, special-shaped spoke support zone will be subject to larger extruding force, there is the material uneven phenomenon that flows in integral body, the hollow position of weakness that the material that forces spoke to support relatively more substantial tight position flow to wheel rim forms material stacking, continue to pile up the material protruding when the application of force press-fits and will suffer broken wall damage, lining position after installation can not accurately put in place, two lining faying faces occur that gap is not etc., the whole torsional deformation of back bush is installed, the weak link position concentrated at stress forms jackknifing, thereby greatly reduce mechanical strength, forms potential safety hazard.In specification requirement, security performance, quality index, require in more and more higher automobile manufacture industry, in the secondary crane span structure mounting bush of automobile process, by this factors of instability, perplexed all the time.How to improve technique, innovation frock, the phenomenon that solves this hidden danger reaches the stablizing effect after installation, is automobile manufacturing field technical staff one of focal point of thinking for it.
Prior art is simply directly lining workpiece to be pressed in the installing hole on secondary crane span structure with the conventional smooth aperture of reducing ring, if lining circle configurations is evenly enriched, by smooth necking die, make circumferential area also can reach the effect of even contracted diameter, but the lining that this technology relates to is a kind of composite formed by metal-rubber, abnormity spoke supports formation wheel rim circumference has void to have reality, because bush structure is complicated, material flows does not have directionality, although the function of having utilized the extruding of tapering guide port to shrink reaches bushing press-mounting to object in the installing hole on secondary bridge bracket, but the unstable potential safety hazard that leaves of quality.
Under routine techniques state, lining shrinks outside dimension by reducing ring frock, the long-pending size of the circumferential surface of external diameter also will be accordingly along with contraction, and under the condition of reducing frock diameter fixed constraints, circumferential surface that lining is retracted is long-pending to be actually to corresponding fold in the center of circle and to move.This technology has been carried out structure innovation to reducing ring, closely knit corresponding site in tapering inner chamber and the support of lining spoke arranges curb, force fluent material to introduce gradually the predefined fold of formation in curb, make the contraction at the closely knit position of material and the shrinkage ratio of weak part harmonious, improved shortcomings and deficiencies of the prior art, made the beneficial effect that reaches steady quality after being pressed into place of lining, gets rid of potential safety hazard.
Summary of the invention
The object of the invention is for above-mentioned the deficiencies in the prior art, solution makes the special-shaped spoke support zone material of lining flow and obtains slowly-releasing and the problem to weak part material stacking under reducing pressure state, and when precompressed, can reach even reduced scale and can reduce again stress and concentrate, guarantee that two corresponding linings are accurately bumped in the installing hole of secondary crane span structure.For this reason, this technology provides a kind of simple and reliable, convenient, flexible, stay-in-grade bushing press-mounting reducing guider.
To achieve these goals, the technical program is: a kind of bushing press-mounting reducing guider, for a pair of lining is pressed in the same installing hole of secondary crane span structure symmetrically, comprise be positioned at installing hole one side the first reducing mechanism, be positioned at the second reducing mechanism of installing hole opposite side, the first described reducing mechanism is for lining is entered in described installing hole from a side pressure, and the second described reducing mechanism is for being pressed into secondary lining in described installing hole from opposite side.
The first described reducing mechanism comprises pressure head, die sleeve, reducing ring, be arranged in die sleeve described pressure head Telescopic sliding, one end of described lining is fit in die sleeve and coincide and locate with pressure head, described reducing ring be arranged on die sleeve/on, described reducing ring has tapering inner chamber, the opening end of this tapering inner chamber is formed with the guide port matching with the lining other end, the closing in end of described tapering inner chamber is aimed at installing hole, on the inwall of described tapering inner chamber, a plurality of curbs are set, the developed area of described curb is equivalent to the shrinkage surface of lining corresponding position and amasss, the second described reducing mechanism comprises secondary pressure head, secondary die sleeve, secondary reducing ring, be arranged in secondary die sleeve described secondary pressure head Telescopic sliding, one end of described secondary lining is fit in secondary die sleeve and coincide and locate with secondary pressure head, described secondary reducing ring is arranged on secondary die sleeve, described secondary reducing ring has secondary tapering inner chamber, the opening end of this pair tapering inner chamber is formed with the secondary guide port matching with the secondary lining other end, the closing in end of described secondary tapering inner chamber is aimed at installing hole, a plurality of secondary curbs are set on the inwall of described secondary tapering inner chamber, the developed area of described secondary curb is equivalent to the shrinkage surface of secondary lining corresponding site and amasss.When described pressure head, secondary pressure head move in opposite directions respectively under pressure cylinder working piston bar promotes, described lining enters in installing hole through tapering inner chamber via guide port from a side, described secondary lining enters in installing hole through secondary tapering inner chamber from opposite side via secondary guide port, the periphery of the lining described in process of press in, secondary lining respectively under the guiding of curb, secondary curb fold be contracted to preliminary dimension to be mounted in installing hole.
In one embodiment of the invention, the first described reducing mechanism is arranged at the left side of installing hole, the second described reducing mechanism is arranged at the right side of installing hole, and the first described reducing mechanism, installing hole, the second reducing mechanism are from left and right center line alignment.
In a preferred embodiment of the present invention, the first described reducing mechanism is arranged at the below of installing hole, the second described reducing mechanism is arranged at the top of installing hole, and the first described reducing mechanism, installing hole, the second reducing mechanism be center line alignment from bottom to top.
As the present invention, further improve, the first described reducing mechanism also comprises that resiliency supported is in the cover stage clip of described die sleeve below, when the described secondary crane span structure of pushing drives cover stage clip compressed, described installing hole, reducing ring, lining, pressure head are compressed mutually to be fixed on spacing state.
As the present invention, further improve, the second described reducing mechanism comprises the suspension of the scalable setting of an along continuous straight runs, described suspension is arranged between secondary lining and installing hole, described secondary reducing ring can be up and down and being installed in parallel in this suspension of floating of circumferencial direction, when described installing hole, reducing ring, lining, pressure head contact put center in place at once, described suspension drives secondary reducing ring to protrude into the installing hole top of secondary crane span structure, makes described secondary pressure head, secondary die sleeve, secondary lining, secondary reducing ring center correspondence.
As the present invention, further improve, described suspension comprises pedestal and spacing collar, and described spacing collar below is provided with ring flange, described secondary lining can be up and down and circumferencial direction float be installed in parallel in described in spacing collar and ring flange between.
As the present invention, further improve, described secondary reducing ring is provided with a plurality of transverse holes and a plurality of longitudinal holes that extend longitudinally that radially extend, in described transverse holes, be provided with horizontal stage clip and press on spacing collar inwall, in described longitudinal hole, be provided with end compression spring and press on ring flange.
As the present invention, further improve, on described reducing ring, be provided with Ka Tai and locating slot is placed on die sleeve with locator card, on described secondary reducing ring, be provided with vice card platform and auxiliary locating slot is placed on secondary die sleeve with locator card.
As the present invention, further improve, described curb on the inwall of tapering inner chamber along taper direction be vertically, inclination or spiral status distribute, described secondary curb on the inwall of secondary tapering inner chamber along taper direction be vertically, inclination or spiral status arrangement.
As the present invention, further improve, described curb, the cross section of secondary curb are the shape of sharp-tooth shaped ditch, the curved ditch of wave or trapezoid-shaped trench.
Accompanying drawing explanation
Fig. 1 has described according to the structural representation of bushing press-mounting reducing guider of the present invention;
Fig. 2 is reducing ring front view;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the curb enlarged diagram in Fig. 2;
Fig. 5 is secondary reducing ring front view;
Fig. 6 is the B-B cutaway view of Fig. 5;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is secondary reducing ring schematic perspective view;
Fig. 9 is the front view of suspension;
Figure 10 is the C-C cutaway view of Fig. 9;
Figure 11 is ring flange front view;
The top view of Figure 12 Figure 11;
Figure 13 is the combination unit structure chart of secondary reducing ring;
Figure 14 is the top view of Figure 13;
Figure 15 is lining sectional front view;
Figure 16 is the top view of Figure 15;
Figure 17 is the left view of Figure 15;
Figure 18 is secondary lining sectional front view;
Figure 19 is the upward view of Figure 18;
Figure 20 is the top view of Figure 18;
Figure 21 is the left view of Figure 18;
Figure 22 is the secondary crane span structure press-fit portion of automobile chassis bit architecture schematic diagram;
Figure 23 is the top view of Figure 22;
Figure 24 has described lining view to be press-fited;
Figure 25 has described lining and has been respectively charged into upper and lower die head schematic diagram;
Figure 26 has described secondary lining, secondary reducing ring, secondary crane span structure central involution schematic diagram;
Figure 27 has described secondary reducing ring and has moved and secondary crane span structure central involution schematic diagram;
Figure 28 has described the descending and secondary reducing loop device central involution schematic diagram of secondary lining;
Figure 29 has described a pair of lining and has been pressed into respectively schematic diagram in reducing ring and secondary reducing ring;
Figure 30 has described schematic diagram in the relevant position that a pair of lining is pressed into secondary crane span structure;
Figure 31 is that a pair of lining is pressed into the finished product schematic diagram after secondary crane span structure;
Figure 32 is the top view of Figure 31;
Figure 33 is longitudinally straight shape curb embodiment schematic diagram;
Figure 34 is longitudinal spiral shape curb embodiment schematic diagram;
Figure 35 is that horizontal trapezoid is arranged curb embodiment schematic diagram;
Figure 36 is horizontal arc shooting curb embodiment schematic diagram.
Mark explanation:
1-pressure head;
2-die sleeve;
3-lining, 31-center, the large gap of 32-, 33-wheel rim, 34-depression nest, 35-side opening, the little gap of 36-, 37-spoke;
4-reducing ring, 41-Ka Tai, 42-curb, 43-tapering inner chamber, 44-guide port, 45-locating slot;
The secondary pressure head of 100-;
The secondary die sleeve of 200-;
The secondary lining of 300-; 301-sub-center nut, the secondary large gap of 302-, 303-accessory whorl rim, the secondary depression of 304-nest, the secondary side opening of 305-, the secondary little gap of 306-, 307-accessory whorl spoke; The secondary boss of 308-;
The secondary reducing ring of 400-, 401-vice card platform, the secondary curb of 402-, the secondary tapering inner chamber of 403-, the secondary guide port of 404-, 405-auxiliary locating slot, 406-longitudinal hole, 407-transverse holes;
5-ring flange, 51-inner ring, 52-through hole, 53-veneer;
6-suspension, 61-screwed hole, 62-spacing collar, 63-end face, 64-pedestal;
The secondary crane span structure of 7-; The recessed end face of 71-, 72-not-go-end face, 73-installing hole, hole, 74-side;
8-overlaps stage clip; The horizontal stage clip of X-; H-end compression spring.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Referring to accompanying drawing 15, Figure 16, the topology view of the described lining 3 of Figure 17, in addition referring to accompanying drawing 18, Figure 19, Figure 20, the topology view of the described secondary lining 300 of Figure 21, contrast two workpiece and can find out that lining 3 and the difference of secondary lining 300 are, lining 3 has center 31 and secondary lining is center nut 301, secondary lining 300 has more boss 308 than lining 3 in addition, remaining all architectural feature, comprise large gap 32, secondary large gap 302, wheel rim 33, accessory whorl rim 303, depression nest 34, secondary depression nest 304, side opening 35, secondary side opening 305, little gap 36, secondary little gap 306, spoke 37, accessory whorl spoke 307, all structurally identical symmetrical corresponding mutually, but common architectural feature is, on whole circumferencial direction, structure distribution is asymmetrical, abnormity, abnormity spoke supports formation wheel rim circumference has void to have reality, because bush structure is complicated, material flows does not have directionality, need to make specific technological innovation for above architectural feature.
For the architectural feature of lining 3, secondary lining 300, correspondence is provided with reducing ring 4, secondary reducing ring 400 respectively.Referring to accompanying drawing 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, reducing ring 4, secondary reducing ring 400 have respectively identical tapering inner chamber 43, secondary tapering inner chamber 403 on relevant position, and curb 42, secondary curb 402 and guide port 44, the secondary guide port 404 of symmetry, correspondence is set.
Referring to Fig. 1, for lining, be that the mode that is embedded in same Kong Weizhong is installed in correspondence with each other, taking bushing press-mounting reducing guider is station centered by secondary crane span structure installing hole, being divided into two parts in correspondence with each other arranges, a part is to take lining 3 to be positioned at the first manual reducing mechanism of installing hole 73 1 sides as target, another portion take secondary lining 300 to be positioned at the automatic second reducing mechanism of installing hole 73 opposite sides as target, the first reducing mechanism is arranged at the below of installing hole 73, the second reducing mechanism is arranged at the top of installing hole 73, the first reducing mechanism, installing hole 73, the second reducing mechanism is center line alignment from bottom to top.
The first reducing mechanism is for entering lining 3 in installing hole 73 from a side pressure, the first reducing mechanism comprises pressure head 1, die sleeve 2, reducing ring 4, be arranged in die sleeve 2 pressure head 1 Telescopic sliding, one end of lining 3 is fit in die sleeve 2 and coincide and locate with pressure head 1, on reducing ring 4, being provided with card platform 41 is placed on die sleeve 2 with locator card with locating slot 45, press-fiting reducing ring 4 in work is by being manually placed on die sleeve 2 and pressing reload request direction by locating slot 45 with the pin of die sleeve 2 and locate, die sleeve 2 below resiliency supported have cover stage clip 8, when the secondary crane span structure 7 of pushing drives cover stage clip 8 compressed, installing hole 73, reducing ring 4, lining 3, pressure head 1 is compressed mutually to be fixed on spacing state, reducing ring 4 has tapering inner chamber 43, the opening end of this tapering inner chamber 43 is formed with the guide port 44 matching with lining 3 other ends, the closing in end of tapering inner chamber 43 is aimed at installing hole 73, a plurality of curbs 42 are set on the inwall of tapering inner chamber 43, and the developed area of curb 42 is equivalent to the shrinkage surface of lining 3 corresponding positions and amasss.
The second reducing mechanism is for being pressed into secondary lining 300 in installing hole 73 from opposite side, the second reducing mechanism comprises secondary pressure head 100, secondary die sleeve 200, secondary reducing ring 400, be arranged in secondary die sleeve 200 secondary pressure head 100 Telescopic slidings, one end of secondary lining 300 is fit in secondary die sleeve 200 and coincide and locate with secondary pressure head 100, on secondary reducing ring 400, being provided with vice card platform 401 is placed on secondary die sleeve 200 with locator card with auxiliary locating slot 405, secondary reducing ring 400 has secondary tapering inner chamber 403, the opening end of this pair tapering inner chamber 403 is formed with the secondary guide port 404 matching with secondary lining 300 other ends, the closing in end of secondary tapering inner chamber 403 is aimed at installing hole 73, on the inwall of secondary tapering inner chamber 403, a plurality of secondary curbs 402 are set, the developed area of secondary curb 402 is equivalent to the shrinkage surface of secondary lining 300 corresponding sites and amasss.
When pressure head 1, secondary pressure head 100 move in opposite directions respectively under pressure cylinder working piston bar promotes, lining 3 enters in installing hole 73 through tapering inner chamber 43 via guide port 44 from a side, secondary lining 300 enters in installing hole 73 through secondary tapering inner chamber 403 via secondary guide port 404 from opposite side, in process of press in the periphery of lining 3, secondary lining 300 respectively under the guiding of curb 42, secondary curb 402 fold be contracted to preliminary dimension and in installing hole 73, complete bushing press-mounting work to be mounted to.
Referring to Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, the the second reducing mechanism that is positioned at top comprises the suspension 6 of the scalable setting of an along continuous straight runs, suspension 6 is arranged between secondary lining 300 and installing hole 73, suspension 6 comprises pedestal 64 and spacing collar 62, spacing collar 62 belows are provided with ring flange 5, secondary lining 300 can be up and down and unsteady being installed in parallel between spacing collar 62 and ring flange 5 of circumferencial direction, when a part of pressure head 1, die sleeve 2, lining 3, when reducing ring 4 puts in place with the installing hole 73 corresponding contacts in center of the secondary crane span structure 7 of workpiece, the secondary guide hole 404 of the secondary reducing ring 400 of another part protrudes into installing hole 73 positions of secondary crane span structure 7 under suspension 6 drives, make secondary pressure head 100, secondary die sleeve 200, secondary lining 300, secondary reducing Huan400 center is corresponding.
Secondary reducing ring 400 is provided with a plurality of transverse holes of radially extending 407 and a plurality of longitudinal holes that extend longitudinally 406, is provided with horizontal stage clip X and presses on spacing collar 62 inwalls in transverse holes 407, is provided with end compression spring H and presses on ring flange 5 in longitudinal hole 406.Jackscrew by the relevant position on auxiliary locating slot 405 and suspension 6 limits direction position, and by the support of horizontal stage clip X, end compression spring H, ring flange 5 is fastened on suspension 6, wherein through hole 52, veneer 53 are bolted accordingly with screwed hole 61, end face 63, and secondary reducing ring 400 limited comprehensive elasticity in the diameter range of inner ring 51 and spacing collar 62 is suspended; The suspension 6 of assembly is connected and fixed by bolt and cantilever (cylinder operation pistons end joint) by pedestal 64 in addition, when work stretch out put in place corresponding with station center, the after-contraction of having worked is exited and is left sufficient room, guarantees that the secondary bridge bracket of processed parts is easy to loading and unloading.
See the secondary crane span structure press-fit portion of the automobile chassis bit architecture schematic diagram of Figure 22, Figure 23, and the lining that contrasts Figure 31, Figure 32 is pressed into the finished product schematic diagram after secondary crane span structure; When lining 3 corresponding with secondary lining 300 be pressed into place after, want evenly in the gap between mutually, depression nest 34 wants symmetrical corresponding with the position of secondary depression nest 304, side opening 35,305 whiles of secondary side opening are corresponding with the by-pass port 74 of secondary crane span structure 7.
According to the fold in the centripetal generation of circumference in reducing process, move phenomenon, this technology has adopted on the taper hole wall of reducing ring, for position corresponding to lining abnormity spoke, according to being pressed into direction, corresponding several curbs are set, the developed area of curb mutually should position fold shrinkage area, in process of press in, forcing material to flow moves according to curb, make the material at the closely knit position of lining abnormity spoke can not be pressed against weak part, prevented from press-fiting the material stacking that process occurs, torsional deformation, cause damaged consequence, having slowed down the wheel rim position stress of spoke support concentrates, whole lining and installing hole can steady and smooth be bumped into, accurately fixedly positioning technology of pressure mounting requirement.
As preferably several distortion, as shown in Figure 33,34, curb 42 on the inwall of tapering inner chamber 43 along taper direction be vertically, inclination or spiral status distribute, secondary curb 402 on the inwall of secondary tapering inner chamber 403 along taper direction be vertically, inclination or spiral status arrangement; In addition, as shown in Figure 35,36, the cross section of curb 42, secondary curb 402 is the shape of sharp-tooth shaped ditch, the curved ditch of wave or trapezoid-shaped trench.
Below briefly explain the pressing method installing in the present embodiment:
1, see that Figure 24 presses reload request and is equipped with corresponding parts, corresponding station frock;
2, see that Figure 25 puts into lining 3, secondary lining 300 on pressure head 1, secondary pressure head 100 respectively, then the guide port 44 of reducing ring 4 towards lining 3 corresponding with die sleeve 2 centers;
3, see that Figure 26 is placed on reducing ring 4 cards on die sleeve 2, then on the station of setting, push secondary crane span structure 7 and drive cover stage clip 8 compressed, make recessed end face 71, reducing ring 4, lining 3, the mutual close contact of pressure head 1 be fixed on simultaneously and limit position;
4, see that Figure 27 cylinder operation piston promotes suspension 6 and makes secondary reducing ring 400 corresponding with installing hole 73 centers on secondary crane span structure 7, and maintenance and not-go-end face 72 suspension Limited contact distances;
5, see that Figure 28 is under the promotion of the working piston of pressure cylinder, secondary pressure head 100, secondary die sleeve 200 and secondary lining 300 contact and put in place with secondary reducing ring 400;
6, see Figure 29, the working piston of the pressure cylinder that Liang Ge center is corresponding, exert pressure in opposite directions respectively, under the condition of the spacing location of die sleeve 2, secondary die sleeve 200, under the guiding respectively of curb 42 and secondary curb 402, pressure head 1 is pressed into lining 3 in reducing ring 4 simultaneously; Secondary pressure head 100 is pressed into secondary lining 300 in secondary reducing ring 400;
7, see Figure 30, pressure head 1 continues in installing hole 73 that the application of force is pressed into lining 3 secondary crane span structure 7 and makes wheel rim 33 be depressed in recessed end face 71; Secondary pressure head 100 continues to make the end face of secondary boss 308 concordant with accessory whorl rim 303 in installing hole 73 that the application of forces are pressed into secondary lining 300 secondary crane span structure 7; Side opening 35 is corresponding with secondary side opening 305 and 74 centers, hole, side to coincide;
8, seeing Figure 32, is the finished product schematic diagram press-fiting after end.
Above embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art understand content of the present invention and implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify; for example adopt the first reducing mechanism, installing hole, the second reducing mechanism from left and right center line alignment all should be encompassed in protection scope of the present invention.
Claims (10)
1. a bushing press-mounting reducing guider, for a pair of lining being pressed into symmetrically in the same installing hole (73) of secondary crane span structure (7), is characterized in that, comprising:
Be positioned at the first reducing mechanism of installing hole (73) one sides, for lining (3) is entered in described installing hole (73) from a side pressure, the first described reducing mechanism comprises pressure head (1), die sleeve (2), reducing ring (4), be arranged in die sleeve (2) described pressure head (1) Telescopic sliding, one end of described lining (3) is fit in die sleeve (2) and coincide and locate with pressure head (1), described reducing ring (4) is arranged on die sleeve (2), described reducing ring (4) has tapering inner chamber (43), the opening end of this tapering inner chamber (43) is formed with the guide port (44) matching with lining (3) other end, the closing in end of described tapering inner chamber (43) is aimed at installing hole (73), on the inwall of described tapering inner chamber (43), a plurality of curbs (42) are set, the developed area of described curb (42) is equivalent to the shrinkage surface of lining (3) corresponding position and amasss,
Be positioned at the second reducing mechanism of installing hole (73) opposite side, for secondary lining (300) is pressed in described installing hole (73) from opposite side, the second described reducing mechanism comprises secondary pressure head (100), secondary die sleeve (200), secondary reducing ring (400), be arranged in secondary die sleeve (200) described secondary pressure head (100) Telescopic sliding, one end of described secondary lining (300) is fit in secondary die sleeve (200) and coincide and locate with secondary pressure head (100), described secondary reducing ring (400) is arranged on secondary die sleeve (200), described secondary reducing ring (400) has secondary tapering inner chamber (403), the opening end of this pair tapering inner chamber (403) is formed with the secondary guide port (404) matching with secondary lining (300) other end, the closing in end of described secondary tapering inner chamber (403) is aimed at installing hole (73), on the inwall of described secondary tapering inner chamber (403), a plurality of secondary curbs (402) are set, the developed area of described secondary curb (402) is equivalent to the shrinkage surface of secondary lining (300) corresponding position and amasss,
When described pressure head (1), when secondary pressure head (100) moves in opposite directions respectively under pressure cylinder working piston bar promotes, described lining (3) enters in installing hole (73) through tapering inner chamber (43) via guide port (44) from a side, described secondary lining (300) enters in installing hole (73) through secondary tapering inner chamber (403) via secondary guide port (404) from opposite side, in the lining described in process of press in (3), the periphery of secondary lining (300) is respectively in curb (42), under the guiding of secondary curb (402), fold is contracted to preliminary dimension to be mounted in installing hole (73).
2. according to the bushing press-mounting reducing guider described in right 1, it is characterized in that: the first described reducing mechanism is arranged at the left side of installing hole (73), the second described reducing mechanism is arranged at the right side of installing hole (73), and the first described reducing mechanism, installing hole (73), the second reducing mechanism are from left and right center line alignment.
3. according to the bushing press-mounting reducing guider described in right 1, it is characterized in that: the first described reducing mechanism is arranged at the below of installing hole (73), the second described reducing mechanism is arranged at the top of installing hole (73), and the first described reducing mechanism, installing hole (73), the second reducing mechanism be center line alignment from bottom to top.
4. according to the bushing press-mounting reducing guider described in right 3, it is characterized in that: the first described reducing mechanism also comprises that resiliency supported is in the cover stage clip (8) of described die sleeve (2) below, when the described secondary crane span structure (7) of pushing drives cover stage clip (8) compressed, described installing hole (73), reducing ring (4), lining (3), pressure head (1) are compressed mutually to be fixed on spacing state.
5. according to the bushing press-mounting reducing guider described in right 4, it is characterized in that: the second described reducing mechanism comprises the suspension (6) of the scalable setting of an along continuous straight runs, described suspension (6) is arranged between secondary lining (300) and installing hole (73), described secondary reducing ring (400) can be up and down and being installed in parallel in this suspension (6) of floating of circumferencial direction, when described installing hole (73), reducing ring (4), lining (3), pressure head (1) contact puts center in place at once, described suspension (6) drives secondary reducing ring (400) to protrude into installing hole (73) top of secondary crane span structure (7), make described secondary pressure head (100), secondary die sleeve (200), secondary lining (300), secondary reducing ring (400) center is corresponding.
6. according to the bushing press-mounting reducing guider described in right 5, it is characterized in that: described suspension (6) comprises pedestal (64) and spacing collar (62), described spacing collar (62) below is provided with ring flange (5), described secondary lining (300) can be up and down and circumferencial direction float be installed in parallel in described in spacing collar (62) and ring flange (5) between.
7. according to the bushing press-mounting reducing guider described in right 6, it is characterized in that: described secondary reducing ring (400) is provided with a plurality of transverse holes (407) of radially extending and a plurality of longitudinal holes that extend longitudinally (406), in described transverse holes (407), be provided with horizontal stage clip (X) and press on spacing collar (62) inwall, in described longitudinal hole (406), be provided with end compression spring (H) and press on ring flange (5).
8. according to the bushing press-mounting reducing guider described in right 1, it is characterized in that: on described reducing ring (4), be provided with Ka Tai (41) and with locator card, be placed on die sleeve (2) above with locating slot (45), on described secondary reducing ring (400), be provided with vice card platform (401) and be placed on secondary die sleeve (200) with locator card with auxiliary locating slot (405).
9. according to the bushing press-mounting reducing guider described in right 1, it is characterized in that: described curb (42) on the inwall of tapering inner chamber (43) along taper direction be vertically, inclination or spiral status distribute, described secondary curb (402) on the inwall of secondary tapering inner chamber (403) along taper direction be vertically, inclination or spiral status arrangement.
10. according to the bushing press-mounting reducing guider described in right 1, it is characterized in that: the cross section of described curb (42), secondary curb (402) is the shape of sharp-tooth shaped ditch, the curved ditch of wave or trapezoid-shaped trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410397963.XA CN104175284B (en) | 2014-08-13 | 2014-08-13 | Bushing press-mounting reducing guider |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410397963.XA CN104175284B (en) | 2014-08-13 | 2014-08-13 | Bushing press-mounting reducing guider |
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| CN104175284A true CN104175284A (en) | 2014-12-03 |
| CN104175284B CN104175284B (en) | 2015-12-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788692A (en) * | 2018-09-05 | 2018-11-13 | 银川西部大森数控技术有限公司 | Bushing necking is oriented to press-loading apparatus |
| CN110202358A (en) * | 2019-05-15 | 2019-09-06 | 苏州托克斯冲压设备有限公司 | Broached bushing closing device |
| CN110253249A (en) * | 2019-06-14 | 2019-09-20 | 苏州托克斯冲压设备有限公司 | Broached bushing pressure head and bushing press-fit equipment |
| CN110421081A (en) * | 2019-08-27 | 2019-11-08 | 无锡先导智能装备股份有限公司 | A kind of reducing device |
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| US4852235A (en) * | 1988-08-19 | 1989-08-01 | Trease Dwaine A | Bearing puller |
| US5613288A (en) * | 1995-12-11 | 1997-03-25 | Lundsten; James D. | Blind hole bearing puller |
| CN203045649U (en) * | 2013-01-10 | 2013-07-10 | 哈尔滨飞机工业集团有限责任公司 | Press mounting tool for inclined hole bushing |
| CN204053959U (en) * | 2014-08-13 | 2014-12-31 | 苏州托克斯冲压设备有限公司 | Bushing press-mounting reducing guider |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852235A (en) * | 1988-08-19 | 1989-08-01 | Trease Dwaine A | Bearing puller |
| US5613288A (en) * | 1995-12-11 | 1997-03-25 | Lundsten; James D. | Blind hole bearing puller |
| CN203045649U (en) * | 2013-01-10 | 2013-07-10 | 哈尔滨飞机工业集团有限责任公司 | Press mounting tool for inclined hole bushing |
| CN204053959U (en) * | 2014-08-13 | 2014-12-31 | 苏州托克斯冲压设备有限公司 | Bushing press-mounting reducing guider |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788692A (en) * | 2018-09-05 | 2018-11-13 | 银川西部大森数控技术有限公司 | Bushing necking is oriented to press-loading apparatus |
| CN108788692B (en) * | 2018-09-05 | 2024-05-03 | 银川西部大森数控技术有限公司 | Bushing necking guide press-fitting device |
| CN110202358A (en) * | 2019-05-15 | 2019-09-06 | 苏州托克斯冲压设备有限公司 | Broached bushing closing device |
| CN110202358B (en) * | 2019-05-15 | 2024-03-01 | 苏州托克斯冲压设备有限公司 | Opening bushing closing-in device |
| CN110253249A (en) * | 2019-06-14 | 2019-09-20 | 苏州托克斯冲压设备有限公司 | Broached bushing pressure head and bushing press-fit equipment |
| CN110421081A (en) * | 2019-08-27 | 2019-11-08 | 无锡先导智能装备股份有限公司 | A kind of reducing device |
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|---|---|
| CN104175284B (en) | 2015-12-23 |
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