JP2000246374A - Die aligning mechanism in punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately equalize a corresponding die pitch with a die pitch when plural dies are parallely arranged and can be simultaneously exchanged. SOLUTION: A die holder 32 having plural die supporting parts 13, 14 for supporting dies 9 at a given pitch is installed on a first supporting element 7. Corresponding dies 10 for performing punch processing together with the dies 9 may be installed on each axial core of the die supporting parts 13, 14. In this punch press, the die holder 32 and one corresponding die 10B are movably installed against the first supporting element 7 and a second supporting element 8. By simulation punch processing, the die holder 32 and the movable corresponding die 10B are moved, so that the corresponding die 10B can be installed on the axial core of the die 9 of the first supporting element 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die alignment mechanism for aligning a punch die and a die die in a turret type or various other types of punch presses.

[0002]

2. Description of the Related Art Conventionally, as a die alignment mechanism in a punch press, a die holder base 74 for mounting a die holder 73 is mounted on a lower turret 71 with a bolt 75 so as to be position-adjustable, as shown in FIG. There is something that I did. In the case of a double track as shown in the figure, die dies (not shown) for the in-track Ti and the out-track To are set in the common die holder 73. The centering operation is performed by inserting a centering punch 77 into the punch installation hole 76 of the upper turret 72 and fitting the centering punch 77 into the die installation hole 78 of the die holder 73. That is, the position of the die holder 73 is adjusted based on the processing of the upper turret 72. In the case of the double-track turret punch press, the in-track Ti and the out-track To are aligned at the same time based on the processing of the upper turret 72.

[0003]

However, the pitch P2 between the in-out of the upper turret 71 and the lower turret 7
Actually, the pitch P1 between the in-out and the second is slightly different, so that perfect alignment cannot be performed. Also, die holder 7
3 cannot be parallelized, and a punching die (not shown) cannot be parallelized with respect to the upper turret 72. That is, the paralleling is a process for adjusting the cross-sectional direction of the non-circular punch and die so as to be parallel to the front-back or left-right direction of the machine, and such a process cannot be performed.

An object of the present invention is to provide a die press in a punch press in which a plurality of dies are arranged side by side at a predetermined pitch and can be replaced simultaneously, and the pitch of the dies corresponding to the dies pitch can be adjusted. It is to provide a wick mechanism. Another object of the present invention is to make it possible to fix the corresponding mold after the position adjustment with a simple configuration, and to be applicable to various molds. Still another object of the present invention is to facilitate mold replacement and subsequent alignment work.

[0005]

According to the present invention, there is provided a mold centering mechanism in a punch press, wherein a mold holder having a plurality of mold support portions capable of supporting a mold at a predetermined pitch is provided on a first support. A die centering mechanism in a punch press, wherein a corresponding die for performing punching in cooperation with the die can be installed on each axis of the plurality of die support portions, It has features. That is, this mold alignment mechanism provides the mold holder and one of the corresponding molds movably in a direction perpendicular to the axis with respect to the first support and the second support, respectively. The mold and the corresponding mold are subjected to simulated punching, so that the mold holder and the movable corresponding mold are moved in the orthogonal direction to form the first support metal. It is assumed that the corresponding mold is set on the axis of the mold. In addition,
The first support and the second support may be different parts of an integral part. According to this mold alignment mechanism, the mold holder on the first support is slightly moved and aligned with the fixed mold on the second support by simulated punching. . The corresponding mold on the movable side of the second support is slightly moved with respect to the aligned mold holder, and is aligned. Therefore, the first
The pitch of the corresponding mold can be made equal to the mold pitch on the support side. Simulated punching may be performed twice. That is, in the first simulated punching process,
The corresponding mold on the fixed side of the second support is
The mold holder on the side of the support is slightly moved and aligned.
The mold holder is fixed to the first support. Thereafter, a second simulated punching process is performed, and the movable mold on the movable side of the second support is minutely moved with respect to the mold holder in the fixed state in which the core is aligned, and is aligned. The mold and the corresponding mold when performing the simulated punching described above are used in place of the mold and the corresponding mold used for the actual processing, and the alignment-only mold and the corresponding mold, that is, A dedicated jig for alignment may be used.

In the present invention, the movable mold is movably mounted on a second support via a bush, and the bush is fixed to the second support so as to be adjustable in position. And the corresponding mold may be exchangeable with respect to the bush. In the case of this configuration, since the bush supporting the corresponding mold is fixed to the second support and can be adjusted, the position of the corresponding mold with respect to the second support after the adjustment can be fixed with a simple configuration. Also,
Since the corresponding mold can be exchanged for the bush, various molds can be accommodated by the mold alignment mechanism having the same configuration.

When the bush is provided as described above, a gap may be provided between the bush and the second support. By providing such a gap, the bush may be placed on the second support at an approximate position at the time of mold replacement, and adjustment may be performed thereafter, so that mold replacement and subsequent alignment work can be easily performed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. In this punch press, a machine body 1 is provided with a mold support 2 and a punch drive mechanism 3 for hitting a punch mold installed on the mold support 2. A plate material feeding mechanism 6 is provided on the table 4 for holding the plate material work W by the work holder 5 and feeding the work.

The mold support 2 is composed of a first support 7 arranged on the lower side and a second support 8 arranged on the upper side, as shown in an enlarged manner in FIG. . These supports 7,
Reference numeral 8 denotes a turret, and a mold 9 and a corresponding mold 10 corresponding to the mold 9 are installed at a plurality of positions in the circumferential direction. The mold 9 comprises a die mold, and the corresponding mold 10
Consists of a punch mold. The first and second supports 7 and 8
It has a plurality of tracks around the center of rotation, for example, an out-track To and an in-track Ti (FIG. 1). On each of the tracks To and Ti, a mold 9 and a corresponding mold 10 are installed. Therefore, each track T of each support 7, 8
o, between the molds 9 installed in Ti, and the corresponding mold 1
Predetermined pitches Q1 and Q2 corresponding to track intervals are provided between 0 and 10.

The mounting of the mold 9 on the first support 7 is performed on the support 7 via a die holder base 11 and a die holder 12. The die holder base 11 and the die holder 12 are provided for each die installation position in the circumferential direction of the support 7, and the dies 9 for the tracks To and Ti are installed on the common die holder 12. The die holder base 11 and the die holder 12 constitute a mold holder 32. The die holder 12 is a die 9 that is a die.
Are provided with mold support portions 13 and 14 for installing
The mold support portions 13 and 14 are provided in a counterbore hole shape. The die holder 12 is detachably attached to the die holder base 11 via attachments 15 and 16 at both ends. Fixture 1
Each of 5 and 16 consists of a pin or a bolt. For example, the mounting tool 16 at the inner end is erected on the die holder base 11 and engages with the mounting groove of the die holder 12. In addition, the fixture 15 includes a die holder base 11 and a die holder 12.
Is inserted over the positioning hole of . The die holder base 11 is arranged on the support 7 and is fixed from below by bolts 17. The bolt insertion hole of the first support 7 into which the bolt 17 is inserted has an inner diameter where a minute gap is formed with respect to the bolt diameter, and the position of the die holder base 11 with respect to the support 7 can be adjusted slightly. Die holder 12,
The die holder base 11 and the support 7 are formed with a dropping hole of a scrap to communicate with the mold supporting portions 13 and 14.

Installation of the corresponding mold 10 on the second support 8
Corresponds to a plurality of corresponding dies 1 provided at a common support indexing position.
0, one corresponding mold 10_AOn the second support 8
Correspondence mold for centering standard installed with position adjustment impossible
And the other corresponding mold 10 _BOn the second support 8
To be movable in the direction perpendicular to the axis.
You. In this example, based on the corresponding mold on the outtrack To side,
Corresponding mold 10_AAnd the corresponding money on the in-track Ti side
The corresponding mold 10 on the movable side, that is, the adjustable side_BToshii
You. In addition, the corresponding corresponding mold 10_AAnd adjustable side
Mold 10_BIf the size differs from the reference mold
10_AIs a large mold.

More specifically, the corresponding dies 10 are mounted on corresponding dies support portions 18 and 19 provided on the respective tracks To and Ti of the second support 8 via bushes 20 and 21. ing. The corresponding mold support portions 18 and 19 are holes provided in the support body 8 so as to penetrate vertically. Bush 20,2
Reference numeral 1 denotes a corresponding mold supporting portion 1 formed of the through hole.
8 and 19 are installed.

The bush 21 of the adjustable mold 10 _B is set on the mold support 19 with a small gap. In addition, the corresponding mold supporting portion 19 on the adjustable side.
Has a countersunk portion that opens to the lower surface of the second support body 8, and the bush 21 has a flange portion 21a that fits into the countersunk portion. This flange portion 21a has a screw hole,
It is fastened and fixed to the second support 8 by the fixing bolt 23. The fixing bolt 23 is inserted into the fixing hole 24 penetrating from the upper surface of the second support 8 to the counterpart of the corresponding mold supporting portion 19 from the upper surface. The fixing hole 24 is formed at an inner diameter where a minute gap is formed around the fixing bolt 23.

The bush 20 of the corresponding mold 10 _A on the reference side
Are installed on the corresponding mold supporting portion 18 with almost no gap.
The reference side bush 20 is fixed to the upper surface of the second support 8 by a bolt 33 with a flange portion 20a provided at the upper end. The correspondence die 10 _A of the reference side, without using the bush 20 may be installed directly into a corresponding mold support portion 18 of the second support 8.

Each corresponding mold 10 has a mold body 10a in a sleeve 25 which is fitted inside the bushes 20 and 21 so as to be vertically movable.
Is set up and down freely. The sleeve 25 serves as a stripper for extracting the mold body 10a from the work W. The mold body 10a has its head and sleeve 2
The return spring 26 interposed at the upper end of the
Is being urged upward. The entirety of the corresponding mold 10 is urged upward by the holding spring 27 against the second support 8. The holding spring 27 is provided on an outer periphery of a pin erected on the second support 8 and is engaged with a flange member 28 engaged with the sleeve 25. Therefore, after the corresponding die 10 is hit with the ram 3a of the punch drive mechanism 3, when the ram 3a rises, it rises and returns by the urging forces of the springs 26 and 27.

Of the mold 9 and the corresponding mold 10, those having a non-circular processing shape are provided with rotation position regulating means 29, 30 around the mold axis. In this example, the mold 9 on the out-track To side and the corresponding mold 10
Only the rotation position regulating means 29 and 30 are provided. The rotation position regulating means 29 of the mold 9 includes a protrusion or a key provided on the outer diameter surface of the mold 9 and a key groove provided on the die holder 12 and fitted with the protrusion or the key.
The rotation position regulating means 30 of the corresponding mold 10 is
And a key groove provided on the bush 20 and fitted with the protrusion or key. This projection or key is specifically provided on the sleeve 25.

A description will be given of the mold alignment function and the alignment work of the above-described configuration. In brief, the mold 9 and the corresponding mold 1
After the exchange of 0, first, with respect to the corresponding die 10 _A of the reference side of the second support 8 (out track To side), the centering of the die holder 32, at the same time of the reference side corresponding gold Type 1
0 _A parallel out and the mold holder 32 parallel out
This is performed with reference to the machine body 1. Next, the centering and parallel out of the corresponding die 10 _B of the movable side (in-track Ti side) a fixed die holder 32 as a reference.

This operation will be described in order. After the exchange of the mold 9 and the corresponding mold 10, first, by the first simulated punching, the corresponding mold 10 on the reference side of the second support 8 is formed.
_With respect to _A , centering of the mold holder 32, that is, centering of the die holder 12 is performed. After the centering operation, the die holder base 11 is fixed to the support 7 with bolts 17. The simulated punching is performed by engaging the corresponding mold 10 _A on the reference side supported by the second support 8 with the mold 9 of the first support 7. This engagement is performed with the bolts 17 fixing the mold holder 32 to the first support 7 loosened. During this centering, performs parallel out of the corresponding die 10 _A of the tool holder 32 and the reference side. As shown in FIG. 3, this parallel setting is performed so that the direction of the cross-section of the non-circular mold 9 is parallel to the front-rear (Y direction) or left-right (X direction) direction of the machine. The adjustment is performed by finely adjusting the direction of the die holder 12 with respect to the support 7. Parallel out of the corresponding die 10 _A, carried out by fixing the bush 20 with bolts 33 to adjust the direction of rotation of the bushing 20 relative to the second support 8.

Next, with reference to the this adjusted die holder 12, the simulated punching the second performs the centering of the corresponding die 10 _B adjustable side. Simulated punching at this time, the corresponding die 10 _B adjustable side performed by fitting in a corresponding mold 9 of the die holder 12, corresponding die 10 _A of the reference side is not operated. After centering, securing the bush 21 of the corresponding die 10 _B to the second support 8 by bolts 23.

[0020] According to the mold centering mechanism of this structure, thus, performs the centering of the die holder 12 to a die holder 32 to one of a corresponding die 10 _A of the second support member 8 as a reference, the core relative to the mold holder 32, which is fixedly out, since to perform out second adjustable side of the core of the corresponding die 10 _B of the support 8, can complete centering in theory, the 1 corresponds to the mold pitch Q1 on the support 7 side.
The pitch Q2 of 0 can be made uniform. Moreover, on the reference side corresponding die 10 _B, since can be installed without a gap against the corresponding mold support portion 18 of the second support 8, there is no problem even lower stiffness of the bushing 20 is, various molds This is advantageous for layout design. Moreover, large for the corresponding mold which is stiffer than smaller corresponding mold is required, a large corresponding mold to be to a corresponding die 10 _B of the reference side, can be prevented decrease in rigidity of the substantially.

Further, in this embodiment, the pair on the adjustable side
Mold 10_BIs connected to the second support 8 via the bush 21.
To be adjustable so that the corresponding mold 1
0_BIs directly installed on the second support 8 so as to be adjustable in position.
Compared to the case, the corresponding mold 10 _BAdjustable fixed position
It can be done with a simple configuration. In addition, for bushes 20 and 21
Each corresponding mold 10_A, 10_BAre interchangeable,
Corresponds to various compatible molds 10 with a mold alignment mechanism with the same configuration
be able to.

In the above embodiment, the lower support is the first support, but the upper support may be the first support. In addition, the present invention is not limited to the turret punch press, that is, the punch press in which the supports 7 and 8 are turrets, and is also applied to a punch press in which the first and second supports 7 and 8 are, for example, cartridges. be able to. In the case of a cartridge type or the like, the first and second supports 7 and 8 are provided at different portions of the integrated mold support, such as an upper portion and a lower portion of the integrated mold support. There may be.

[0023]

According to the die alignment mechanism of the punch press of the present invention, the first support is provided with a die holder having a plurality of die support portions capable of supporting the die at a predetermined pitch. In a punch press in which a corresponding mold can be installed on each axis of the mold supporting portion, one of the mold holder and the corresponding mold is movably provided, and the mold holder and Since the corresponding molds on the movable side are moved and the corresponding molds are set on the axis of the mold of the first support, a plurality of molds are opened at a predetermined pitch and arranged side by side. Installed and simultaneously replaceable,
The pitch of the corresponding mold can be made equal to the mold pitch. In addition, since only one of the plurality of movable dies is provided, the reduction in rigidity caused by the movable movable die with respect to the second support can be minimized. The movable mold on the movable side is movably installed on the second support via a bush, and the bush is fixed to the second support so as to be adjustable in position. When the mold is replaceable with respect to the bush, it is possible to fix the corresponding mold after adjusting the position with a simple configuration, to reduce the reduction in rigidity as much as possible, and to cope with various molds. . When a gap is provided between the bush and the second support, the bush can be placed at an approximate position, and the mold replacement and the subsequent centering work can be easily performed.

[Brief description of the drawings]

FIG. 1 is a partially omitted plan view of a punch press equipped with a mold alignment mechanism according to an embodiment of the present invention.

FIG. 2 is a partial perspective view of a lower turret serving as a first support.

FIG. 3 is a cutaway side view of the mold alignment mechanism.

FIG. 4 is an explanatory diagram of the paralleling operation.

FIG. 5 is a sectional view of a conventional example.

[Explanation of symbols]

1 ... machine main body 7 ... first support 8 ... second support 9 ... of the mold 10 _A ... reference side of the corresponding die 10 _B ... adjustable side corresponding mold 11 ... die holder base 12 ... die holder 13, 14: Mold support part 17 ... Bolt 18, 19 ... Corresponding mold support part 20, 21 ... Bush 22, 23 ... Fixing bolt 25 ... Sleeve 29, 30 ... Rotational position regulating means 32 ... Mold holder P ... Punch position Q1 , Q2 ... Pitch Ti ... In-track To ... Out-track

Claims (3)

[Claims] 1. A first support is provided with a mold holder having a plurality of mold support portions capable of supporting a mold at a predetermined pitch.
A die centering mechanism in a punch press, wherein a corresponding die for performing punching in cooperation with the die can be installed on each axis of the plurality of die support portions, wherein the die is A holder and one of the corresponding dies are provided movably in a direction orthogonal to the axis with respect to the first support and the second support, respectively, and a simulated punch is provided on the dies and the corresponding dies. By processing, the mold holder and the movable corresponding mold are moved in the orthogonal direction, and the corresponding mold is set on the axis of the mold of the first support. Alignment mechanism of the die in the punch press. 2. The movable corresponding mold is movably mounted on a second support via a bush, and the bush is fixed to the second support so as to be adjustable in position. 2. The die centering mechanism in a punch press according to claim 1, wherein the corresponding die is replaceable with respect to the bush. 3. The die centering mechanism in a punch press according to claim 2, wherein a gap is provided between the bush and the second support.