JP6341121B2 - Oscillating machine and punch setup method - Google Patents

Description

  The present invention relates to an oscillating machine and a punch setup method for preparing a punch provided in the oscillating machine.

2. Description of the Related Art Conventionally, there is known an oscillating machine that applies a load to a work set on a die by a punch to form the work.
In the oscillating machine described in Patent Document 1, the axis of the oscillating shaft member to which the punch is fixed is inclined with respect to the vertical axis perpendicular to the installation surface on which the workpiece is installed on the die. This oscillating machine forms a workpiece by applying a load to the workpiece from a machining surface of a punch fixed to the oscillating shaft member while the axis of the oscillating shaft member revolves around a vertical axis. .

JP 2014-104478 A

  However, the swing processing machine described in Patent Document 1 does not describe a setup method for fixing the punch to the swing shaft member. As a setup method of the punch, for example, the punch is placed on a jig installed on the die, and the die and the punch are moved to the swing shaft member side in that state, and the punch is fixed to the swing shaft member. Can be considered. However, in this case, it takes time to install the jig on the die and to remove the jig from the die after setting up the punch.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide an oscillating machine and a punch setup method capable of performing punch setup in a short time.

The oscillating machine according to the first invention includes a die, an oscillating shaft member, an oscillating support, a punch, a guide post, a locking member, and a push-up rod. The die has an installation surface on which a workpiece can be installed. The axis of the swing shaft member is inclined with respect to a vertical axis perpendicular to the die installation surface. The swing support member supports the swing shaft member such that the shaft of the swing shaft member can revolve around a vertical axis. The punch is detachably attached to the inside of a recess provided on the die side of the swing shaft member. The guide post has an upper post that can be attached to and detached from the swinging support body, and a lower post fixed to the die, and the upper post and the lower post can reciprocate in parallel to the vertical axis. The locking member provided on the upper post can lock the punch with the axis of the swinging shaft member and the axis of the punch in parallel before the punch is fixed to the swinging shaft member. It leaves | separates from a punch in the state fixed to the moving shaft member. The push-up rod is provided so as to be able to reciprocate from the die to the swing shaft member side, and can push up the punch locked by the lock member to the inside of the recess of the swing shaft member.
Thereby, it is possible to move the push-up rod in a state where the punch is locked to the locking member, and to fix the punch to the swing shaft member. Therefore, the oscillating machine can set up the punch in a short time.

The second invention is an invention of a punch setup method. The punch setup method includes a punch locking process, an insertion process, a fixing process, and a returning process.
In the punch locking step, the punch is locked to a locking member provided on the upper post. In the insertion step, the push-up rod is moved from the die to the swing shaft member side to release the punch from the locking member and insert the punch inside the recess of the swing shaft member. In the fixing step, the punch is fixed to the swing shaft member. In the returning step, the push-up rod is returned to the die side.
Thereby, the 2nd invention can set up a punch in a short time like the 1st invention.

It is sectional drawing of the rocking machine by 1st Embodiment of this invention. It is an enlarged view of the II part of FIG. It is the top view which looked at the punch of the rocking machine from the rocking shaft member side. It is sectional drawing at the time of setting up the punch of a rocking machine. It is sectional drawing at the time of setting up the punch of a rocking machine. It is sectional drawing at the time of setting up the punch of a rocking machine. It is explanatory drawing of the motion of the punch by a guide pin and a guide hole. It is sectional drawing at the time of the workpiece | work installation of a rocking machine. It is sectional drawing at the time of setting up the punch of the swing processing machine of a comparative example.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
(One embodiment)
One embodiment of the present invention is shown in FIGS. The oscillating machine 1 according to the present embodiment applies a load to the workpiece 2 installed on the die 10 by a punch 50 and molds the workpiece 2.
FIG. 1 and FIG. 2 show a state when the oscillating machine 1 forms the workpiece 2. The workpiece 2 illustrated in FIGS. 1 and 2 is formed in an annular shape and has a central hole 3. The work 2 has an annular recess 4 that is recessed from the die 10 side to the punch 50 side outside the center hole 3.
The oscillating machine 1 can change the die 10 and the punch 50 to different shapes according to the shape of the workpiece. As a result, the oscillating machine 1 is capable of molding and processing various shapes of workpieces, not limited to the workpiece 2 illustrated in FIGS. 1 and 2.

[Configuration of swing processing machine]
First, the configuration of the oscillating machine 1 will be described.
As shown in FIGS. 1 and 2, the oscillating machine 1 includes a die 10, a positioning rod 20, an ejector rod 21, an oscillating shaft member 30, an oscillating support 40, a punch 50, a guide post 60, and a locking member. 70 etc.
The die 10 includes a pedestal 12 fixed to a table 11 of factory equipment, and an extending portion 13 extending from the pedestal 12 toward the punch 50 side. The table 11 of the factory equipment can be reciprocated together with the die 10 toward the swing shaft member 30 side.
The die 10 has an installation surface 14 on which the workpiece 2 can be installed on the opposite side of the extending portion 13 from the pedestal 12. The installation surface 14 is formed in parallel with the table 11. The bottom of the annular recess 4 of the work 2 abuts on the installation surface 14 of the die 10.

A positioning rod 20 for positioning the workpiece 2 on the die 10 is provided at the center of the extending portion 13. Further, an ejector rod 21 for taking out the workpiece 2 from the die 10 is provided on the outer diameter side of the positioning rod 20. Both the positioning rod 20 and the ejector rod 21 can reciprocate in a direction perpendicular to the installation surface 14 of the die 10.
The positioning rod 20 and the ejector rod 21 of the present embodiment correspond to an example of a “push-up rod” recited in the claims.
In the following description, a virtual axis that includes the center of the installation surface 14 of the die 10 and is perpendicular to the installation surface 14 is referred to as a vertical axis O.

  The swing shaft member 30 has a hemispherical portion 31 formed in a substantially hemispherical shape, and a shaft portion 32 extending in a columnar shape from the hemispherical portion 31 to the side opposite to the die 10. The axis P of the swing shaft member 30 is provided to be inclined with respect to the vertical axis O described above. An inclination angle between the axis P of the swing shaft member 30 and the vertical axis O is θ1. In the present embodiment, the inclination angle θ1 is 2 °, for example. As shown by an arrow A in FIGS. 1 and 2, the swing shaft member 30 is driven by a drive source (not shown), and an intersection point Q between the axis P of the swing shaft member 30 and the work surface 5 of the workpiece 2. Is pivoted so that the axis P of the pivot shaft member 30 revolves around the vertical axis O.

The swing support body 40 has a hemispherical recess 41 that is recessed in a bowl shape corresponding to the hemispherical portion 31 of the swing shaft member 30. The swing support 40 supports the swing shaft member 30 so as to be swingable by the inner wall of the hemispherical recess 41.
A cylindrical recess 33 is provided on the die 10 side of the swing shaft member 30. The side wall 37 of the concave portion 33 is formed in a tapered shape in which the inner diameter gradually decreases from the die 10 side toward the shaft portion 32 side.
A plurality of clamps 34 are provided outside the diameter of the recess 33 on the end surface of the swing shaft member 30 on the die 10 side. The clamp 34 locks the end surface of the punch 50 on the die 10 side, and fixes the swing shaft member 30 and the punch 50.

  The punch 50 is formed in a substantially cylindrical shape, and is detachably attached to the inside of the recess 33 of the swing shaft member 30 by a plurality of clamps 34. The punch 50 has a work accommodation hole 51 on the die 10 side. The punch 50 has a machining surface 52 that contacts the workpiece 2 and a non-machining surface 53 at a position corresponding to the central hole 3 of the workpiece 2 on the surface of the workpiece accommodation hole 51 on the die 10 side. In FIG. 2, the ranges where the processed surface 52 and the non-processed surface 53 are formed on the punch 50 are indicated by arrows α and β, respectively.

The processing surface 52 is formed in a taper shape. When this taper angle is θ2, the relationship between the inclination angle θ1 and the taper angle θ2 described above is expressed by the following formula 1.
180 ° −θ1 × 2 = θ2 (Formula 1)
As a result, when the axis P of the swing shaft member 30 revolves around the vertical axis O, the work surface 5 of the workpiece 2 and the work surface 52 of the punch 50 abut at locations that are sequentially parallel to the circumferential direction. . Therefore, the processing surface 52 of the punch 50 is transferred to the processing surface 5 of the work 2, and the processing surface 5 of the work 2 is formed and processed in parallel with the installation surface 14 of the die 10.

FIG. 3 is a plan view of only the punch 50 as viewed from the swing shaft member 30 side. As shown in FIGS. 2 and 3, the punch 50 includes a substantially cylindrical punch main body 57 and four flange portions 54 on the outer periphery of the punch main body 57. A locking hole 55 is provided in the flange portion 54. The locking hole 55 has a tapered shape in which the inner diameter gradually decreases from the die 10 side toward the swing shaft member 30 side.
The punch 50 has two guide holes 56 on the surface of the punch main body 57 on the swing shaft member 30 side. The two guide holes 56 are provided at positions away from the axis R of the punch 50 and extend parallel to the axis R of the punch 50. The two guide holes 56 are provided on both sides of the axis P of the oscillating shaft member 30 in a direction perpendicular to the direction B in which the axis P is inclined.

  As shown in FIG. 2, two guide pins 36 are fixed to the swing shaft member 30 at positions corresponding to the two guide holes 56. In other words, a plurality of sets of guide holes 56 and guide pins 36 are provided at locations away from the axis R of the swing shaft member 30 and the punch 50. The two guide pins 36 extend in parallel with the axis P of the swing shaft member 30 and can be inserted into the two guide holes 56, respectively. In order to facilitate the insertion of the guide pin 36 into the guide hole 56, the tip end portion of the guide pin 36 may be tapered.

As shown in FIG. 1, the guide post 60 has an upper post 61 fixed to the swing support body 40 and a lower post 62 fixed to the die 10.
The upper post 61 includes a connecting portion 63 that can be attached to and detached from the swinging support body 40, a receiving portion 64 to which a locking member 70 that locks the punch 50 is fixed, and a base of the die 10 from the lower surface of the receiving portion 64. It has a slide part 65 extending to the 12 side.
The slide portion 65 and the lower post 62 can slide in parallel to the vertical axis O. As a result, the guide post 60 prevents misalignment between the die 10 and the punch 50.

Corresponding to the four locking holes 55 provided in the flange portion 54 of the punch 50, four locking members 70 are provided in the guide post 60. The locking member 70 is a columnar member that extends from the receiving portion 64 toward the swing shaft member 30.
As shown in FIG. 4, the tips 71 of the four locking members 70 are fitted into the locking holes 55 of the punch 50 before the punch 50 is fixed to the swing shaft member 30. In this state, the stepped surfaces 72 of the four locking members 70 come into contact with the lower surface of the flange portion 54 of the punch 50.
The step surfaces 72 of the four locking members 70 are different in height from the upper surface of the receiving portion 64 of the upper post 61. In other words, the height of the stepped surface 72 of the locking member 70 positioned in the direction in which the axis P of the swing shaft member 30 is tilted is the position on the side opposite to the direction in which the axis P of the swing shaft member 30 is tilted. It is lower than the height of the stepped surface 72 of the stop member 70. The difference in height of the stepped surfaces 72 of the plurality of locking members 70 is set in accordance with the inclination of the axis P of the swing shaft member 30. Accordingly, the four locking members 70 can lock the punch 50 so that the axis P of the swing shaft member 30 and the axis R of the punch 50 are parallel to each other.

  On the other hand, as shown in FIGS. 1 and 2, the lower surface of the flange portion 54 of the punch 50 and the four locking members 70 are separated from each other by a predetermined distance in a state where the punch 50 is fixed to the swing shaft member 30. It becomes a state. The predetermined distance is such that the axis P of the swing shaft member 30 is inclined to the opposite side and the position of the shaft of the swing shaft member 30 is P1 in FIG. This is the distance at which the stepped surface 72 of the locking member 70 does not contact.

[Punch setup method]
Next, a punch 50 setup method for fixing the punch 50 to the swing shaft member 30 will be described.
In the punch 50 setup method, the punch locking step S1, the insertion step S2, the fixing step S3, and the return step S4 are performed in this order.
As shown in FIG. 4, in the punch locking step S <b> 1, the punch 50 is placed on the locking member 70 provided on the upper post 61 with the connecting portion 63 of the upper post 61 and the swinging support body 40 being separated from each other. Is placed. At this time, the punch 50 is locked by the locking member 70 in a state where the axis R of the punch 50 and the axis P of the swinging shaft member 30 are parallel to each other.

As shown by an arrow C in FIG. 5, in the insertion step S2, first, the table 11 is moved to the swing shaft member 30 side. At this time, the table 11 is moved to a position where the tip portions of the two guide pins 36 fit into the two corresponding guide holes 56 respectively. At this time, the connection portion 63 of the upper post 61 is fixed to the swing support body 40.
Subsequently, as shown by an arrow D in FIG. 6, the positioning rod 20 is moved from the die 10 to the swing shaft member 30 side, the punch 50 is released from the locking member 70, and the recess 33 of the swing shaft member 30 is moved. The punch 50 is inserted inside.

FIG. 7 shows the movement of the punch 50 when the punch 50 is inserted into the recess 33 of the swing shaft member 30.
FIG. 7A is an enlarged view of FIG. 5, and the tip portions of the two guide pins 36 are fitted in the corresponding two guide holes 56. In this state, the claw 35 of the clamp 34 is moved to the outer side of the punch 50 by hydraulic pressure or the like.
As shown in FIG. 7B, when the positioning rod 20 is moved toward the swing shaft member 30, the punch 50 is pressed by the positioning rod 20, away from the locking member 70, and the recess 33 of the swing shaft member 30. It is pushed up to the deep part of. At this time, the distal end portion of the positioning rod 20 contacts the non-processed surface 53 of the punch 50 without contacting the processed surface 52 of the punch 50.
When the punch 50 moves to the deep part of the recess 33 of the swing shaft member 30, the guide pin 36 and the inner wall of the guide hole 56 are in sliding contact. Thereby, as shown by the arrow E, the punch 50 slides in the direction in which the axis P of the swing shaft member 30 is inclined. Therefore, friction between the inner wall of the recess 33 of the swing shaft member 30 and the punch 50 is suppressed, and the punch 50 is quickly inserted into the deep portion of the recess 33 of the swing shaft member 30.

Subsequently, as shown in FIG. 7C, in the fixing step S3, when the punch 50 is inserted into the deep portion of the recess 33 of the swing shaft member 30, the claw 35 of the clamp 34 is moved as shown by an arrow F. The punch 50 is moved inward in the radial direction by hydraulic pressure or spring force, and the punch 50 is fixed.
Thereafter, in the returning step S4, the positioning rod 20 is returned to the die 10 side again. Thereby, the setup work of the punch 50 for fixing the punch 50 to the swing shaft member 30 is completed.

[Method of forming workpiece by swinging machine]
Next, a method for forming the workpiece 2 by the oscillating machine 1 will be described.
As shown in FIG. 8, when installing the workpiece 2, the oscillating machine 1 causes the positioning rod 20 to protrude from the die 10 by a predetermined amount with the table 11 and the oscillating shaft member 30 kept away from each other. . By inserting the center hole 3 of the workpiece 2 into the positioning rod 20, the workpiece 2 is positioned, and the annular recess 4 of the workpiece 2 is installed on the installation surface 14 of the die 10.

Next, as shown in FIGS. 1 and 2, the oscillating machine 1 closes the table 11 and the oscillating shaft member 30 and closes the mold, and then, as shown by an arrow A, the oscillating shaft member 30 is moved. The rocking shaft member 30 is swung so that the axis P of the shaft revolves around the vertical axis O. Thereby, a load is sequentially applied in the circumferential direction from the processing surface 52 of the punch 50 to the processing surface 5 of the workpiece 2. Therefore, the work surface 5 of the workpiece 2 is formed by the work surface 52 of the punch 50.
After the workpiece 2 is formed, the swinging machine 1 opens the mold again and causes the ejector rod 21 to protrude from the die 10 to the punch 50 side. Thereby, the work 2 is taken out from the die 10.

The oscillating machine 1 of the present embodiment has the following operational effects.
(1) In this embodiment, the locking member 70 provided on the upper post 61 is in a state before the punch 50 is fixed to the swing shaft member 30, and the shaft P of the swing shaft member 30 and the shaft of the punch 50. The punch 50 is locked so that R is parallel. The locking member 70 is separated from the punch 50 in a state where the punch 50 is fixed to the swing shaft member 30.
Accordingly, it is possible to move the positioning rod 20 toward the swinging shaft member 30 while the punch 50 is locked to the locking member 70, and fix the punch 50 to the swinging shaft member 30. Further, when the punch 50 is fixed to the swing shaft member 30, the locking member 70 and the punch 50 are separated from each other. Therefore, the swing processing machine 1 swings without removing the locking member 70 from the guide post 60. The workpiece 2 can be processed by swinging and rotating the shaft member 30. Therefore, the oscillating machine 1 can set up the punch 50 in a short time.

(2) In this embodiment, the positioning rod 20 pushes up the punch 50 locked to the locking member 70 to the inside of the recess 33 of the swing shaft member 30.
Thereby, it is possible to set up the punch 50 using the positioning rod 20 provided in the oscillating machine 1. Therefore, the manufacturing cost can be reduced without complicating the configuration of the oscillating machine 1.

(3) In this embodiment, the positioning rod 20 abuts on the non-processed surface 53 of the punch 50 when the punch 50 is pushed up to the inside of the recess 33 of the swing shaft member 30.
Thus, when the punch 50 is set up, when the punch 50 slides in the inclination direction of the axis P of the rocking shaft member 30 as the positioning rod 20 moves up, the friction between the positioning rod 20 and the punch 50 causes the punch 50 to move. The processing surface 52 can be prevented from being damaged.

(5) In the present embodiment, the guide pin 36 extends from the swing shaft member 30 in parallel with the axis P of the swing shaft member 30. The punch 50 is provided with a guide hole 56 into which the guide pin 36 can be inserted.
Thereby, when the punch 50 is set up, the inner wall of the guide hole 56 and the guide pin 36 are in sliding contact with each other, and the punch 50 slides in a direction in which the swing shaft member 30 is inclined. Thereby, since the friction between the inner wall of the recess 33 of the swing shaft member 30 and the punch 50 is suppressed, the punch 50 can be quickly inserted into the deep portion of the recess 33 of the swing shaft member 30.

(6) In the present embodiment, a plurality of sets of guide pins 36 and guide holes 56 are provided at locations away from the axis P of the swing shaft member 30 or the axis R of the punch 50.
Thereby, it is possible to determine the relative rotational phase between the swing shaft member 30 and the punch 50.
Further, since a plurality of sets of guide pins 36 and guide holes 56 are provided at positions separated from the axis P of the swing shaft member 30 or the axis R of the punch 50, when the swing processing machine 1 processes the workpiece 2, The stress applied to the guide pin 36 and the guide hole 56 can be reduced.

The punch 50 setup method of the oscillating machine 1 of the present embodiment has the following operational effects.
(7) In this embodiment, the punch 50 is locked to the locking member 70 provided on the upper post 61 in the punch locking step S1. In the insertion step S <b> 2, the positioning rod 20 is moved from the die 10 toward the swing shaft member 30, the punch 50 is separated from the locking member 70, and the punch 50 is inserted inside the recess 33 of the swing shaft member 30.
Thereby, the oscillating machine 1 can set up the punch 50 in a short time.

(Comparative example)
Here, the swing processing machine 100 of the comparative example will be described.
FIG. 9 shows a state when the punch 50 of the oscillating machine 100 of the comparative example is set up. In the swing processing machine 100 of the comparative example, a jig 90 is installed on the base 12 of the die 10, and the punch 50 is placed on the jig 90. With the jig 90, the axis R of the punch 50 is installed in parallel with the axis P of the swing shaft member 30.
In this state, when the table 11 and the swinging shaft member 30 are brought closer to each other, the punch 50 is fitted into the recess 33 of the swinging shaft member 30. In this state, after fixing the punch 50 to the swing shaft member 30 by the clamp 34, the table 11 and the swing shaft member 30 side are moved away again. Then, the jig 90 is removed from the base 12 of the die 10.

  As described above, the swing processing machine 100 of the comparative example includes a step of installing the jig 90 on the die 10 when setting up the punch 50 and a step of removing the jig 90 from the die 10 after setting up the punch 50. Necessary. Therefore, the swing processing machine 100 of the comparative example takes time to set up the punch 50 as compared with the swing processing machine 1 of the embodiment of the present invention described above.

(Other embodiments)
(1) In the embodiment described above, the oscillating machine 1 uses the positioning rod 20 to push the punch 50 into the recess 33 of the oscillating shaft member 30. On the other hand, in another embodiment, the rocking machine 1 may push up the punch 50 to the inside of the recess 33 of the rocking shaft member 30 using the ejector rod 21.
(2) In another embodiment, the oscillating machine 1 may push the punch 50 to the inside of the recess 33 of the oscillating shaft member 30 using the installation surface 14 of the die 10.

(3) In the above-described embodiment, the rocking machine 1 is provided with the guide pin 36 in the rocking shaft member 30 and the guide hole 56 in the punch 50. On the other hand, in another embodiment, the rocking machine 1 may be provided with the guide hole 56 in the rocking shaft member 30 and the guide pin 36 on the punch 50.
(4) Further, in another embodiment, the oscillating machine 1 may not include the guide pin 36 and the guide hole 56. In that case, the punch 50 can be guided by the inner wall of the recess 33 of the swing shaft member 30.
Thus, the present invention is not limited to the above-described embodiments, and can be implemented in various forms without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 ... Oscillation processing machine 10 ... Die 30 ... Oscillation shaft member 40 ... Oscillation support body 33 ... Recess 50 ... Punch 60 ... Guide post 70 ... Engagement Stop member 20 ... Positioning rod (push-up rod)
21 ... Ejector rod (push-up rod)

Claims (7)

A die (10) having an installation surface (14) on which a workpiece (2) can be installed;
An oscillating shaft member (30) whose axis (P) is inclined with respect to a vertical axis (O) perpendicular to the installation surface of the die;
A swing support (40) for supporting the swing shaft member such that the shaft of the swing shaft member can revolve around the vertical axis;
A punch (50) removably attached to the inside of a recess (33) provided on the die side of the swing shaft member;
It has an upper post (61) that can be attached to and detached from the swing support and a lower post (62) fixed to the die, and the upper post and the lower post reciprocate in parallel with the vertical axis. Possible guide posts (60);
Provided on the upper post, the punch can be locked with the axis of the swing shaft member and the axis of the punch (R) in parallel before fixing the punch to the swing shaft member. A locking member (70) that is separated from the punch in a state where the punch is fixed to the swing shaft member;
A push-up rod (20, provided so as to be reciprocally movable from the die to the swing shaft member side) and capable of pushing up the punch locked to the lock member to the inside of the recess of the swing shaft member 21).   The oscillating machine according to claim 1, wherein the push-up rod is a positioning rod (20) for positioning the work on the die when the work is formed.   The oscillating machine according to claim 1, wherein the push-up rod is an ejector rod (21) for taking out the work formed between the die and the punch from the die. The punch has a processed surface (52) that comes into contact with the work during the forming of the work, and a non-processed surface (53) that does not come into contact with the work,
The said push-up rod contacts the said non-processed surface of the said punch, when pushing up the said punch inside the said recessed part of the said rocking | fluctuation shaft member. Oscillating machine. A guide pin (36) fixed to one of the swing shaft member or the punch and extending parallel to the axis of the swing shaft member;
The swing according to any one of claims 1 to 4, further comprising a guide hole (56) provided in the other of the swing shaft member or the punch and into which the guide pin can be inserted. Processing machine.   The oscillating machine according to claim 5, wherein a plurality of sets of the guide pins and the guide holes are provided at locations apart from the axis of the oscillating shaft member or the axis of the punch. A punch setup method for fixing the punch to the inside of the recess of the swing shaft member provided in the swing processing machine according to claim 1,
A punch locking step (S1) for locking the punch to the locking member;
An insertion step (S2) of moving the push-up rod from the die to the swing shaft member side, separating the punch from the locking member, and inserting the punch inside the recess of the swing shaft member; ,
A fixing step (S3) for fixing the punch to the swing shaft member;
And a step of returning the push-up rod back to the die side (S4).

Images