JPH11179449A - Automatic die changing device and punching machine equipped therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute a die changing motion easy in controlling a combination of an optional punch and a die rich in flexibility. SOLUTION: A die storing device 53 is equipped with many storing parts capable of freely attachably and detachably storing many punches P and a die D to be subjected to attaching or detaching change with regard to a region of changing dies of a punch press and further equipped with a punch storing device 63 and a die storing device 65 in which storing parts of a desired punch P and die D out of these many storing parts are each independently prepared to be freely located in a prescribed taking-out area. A die changing device 95 has a punch holding part 115 and a die holding part 141 between the die storing device 53 and the punch press. Each of the holding parts 115, 141 independently holds the punch P and the die D respectively and freely moves upwards and downwards, forwards and backwards or turns between the die changing area and the taking-out area. The punch holding part 115 and the die holding part 141 and also the punch storing device 63 and the die storing device 53 each move independently, so the optional punch P and the die D of the dies storing device 53 are capable of being freely combined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic die changing device and a punching device provided with the automatic die changing device.

[0002]

2. Description of the Related Art Conventionally, a main frame of a turret punch press is provided with a disk-shaped rotatable upper turret and a disk-shaped rotatable lower turret, which are vertically opposed to each other. Are appropriately provided in the circumferential direction, and a large number of dies are appropriately provided in the lower turret in the circumferential direction.

[0003] A plurality of punches out of a large number of punches are held by a punch holder, and the punch holder is provided on a punch holder mounting portion of an upper turret so as to be detachable and replaceable from a horizontal direction.

A plurality of dies among a large number of dies are held by a die holder, and the die holder is provided on a die holder mounting portion of an upper turret so as to be detachable and replaceable from a horizontal direction.

The punch holder and the die holder are configured to be positioned in the punch holder exchange area and the die holder exchange area by synchronous rotation of the upper turret and the lower turret.

[0006] At a position adjacent to the turret punch press, there is provided an automatic die changing device comprising a die storing device and a die changing device.

For example, as shown in FIG. 5, the mold storage device 201 has a large number of punch holder storage portions and die holder storage portions for storing a punch holder and a die holder detachably from a horizontal direction. A vertically extending rotating member 205 is rotatably provided by a rotation driving means (not shown) on a support standing upright on a base frame (not shown).

The rotary member 205 is provided with a plurality of disk-shaped punch storages 207. The punch storage 207 is provided with a large number of punch storage sections 209 for removably storing the punches P in the circumferential direction. Is provided.

The rotating member 205 has a plurality of stages of disk-shaped die storages 211.
The die storage 211 is provided with a plurality of die storage portions 213 for detachably storing the dies D in the circumferential direction as appropriate.

[0010] A pair of storages 207 vertically opposed to each other,
A plurality of storage units 211 can be attached to and detached from the rotating member 205.

In the mold storage device 201, a desired punch storage portion 209 of the plurality of punch storage portions 209 is positioned at a predetermined position in the punch take-out area 215, and The die D of the desired die storage section 213 is in the die take-out area 217.
Is configured to be positioned at a predetermined position.

A mold exchanging device is provided between the turret punch press and the mold accommodating device 201. The mold exchanging device detachably attaches a punch holder and a die holder for detachably holding a punch holder. A die holding part for holding is provided.

The punch holding section is configured to be movable between a position close to the punch holder exchange area and a position close to the punch take-out area 215, and the die holding section is located at a position close to the die holder exchange area. It is configured to be movable between a position adjacent to the die take-out area 217.

For example, the punch holding unit and the die holding unit are provided at the tip of a die changing arm that can move up, down, rotate and move forward and backward, and a desired punch holder and a die holder are simultaneously held by the punch holding unit and the die holding unit. Then, it is moved and exchanged between the mold storage device 201 and the turret punch press.

Another example of a conventional automatic mold changing apparatus is disclosed in Japanese Patent Publication No. 24975/1990, for example.
As shown in FIG. 6, the mold storage device 219 includes a punch storage 22 in which a large number of punches P and dies D are stored.
1 and die storage 223 are provided in multiple stages, and one punch P is provided so that the clearance between the punch P and the die D can be selected according to the plate material of the work to be processed.
A plurality of dies D having the same shape and different dimensions are accommodated. Punch holding unit 22 of mold changing device 225
7 and the die holding part 229 simultaneously move between the mold storage device 219 and the turret punch press.

[0016]

By the way, in the former automatic die changing apparatus in the former, one punch P
Mold storage device 20 in a one-to-one relationship with one die
Since it is stored and managed in one punch storage part 209 and one die storage part 213, as shown in FIG. 5, a method and mechanism for simultaneously replacing a pair of punches and dies in one set must be adopted. There was nothing.

From the above, any punch P and die D
There is a problem in that the combination and management and exchange are limited in a limited range and lack flexibility.

In addition, there is a problem that performing a desired combination of the punch P and the die D requires a complicated operation and management of the desired punch P and the die D. For example, FIG.
In the automatic die changing device shown in (1), it is not possible to change only the die D because the thickness of the work to be processed changes. That is, the punch P is temporarily returned from the turret punch press to the mold storage device 219, and is again returned to the same punch P.
Has to be mounted on a turret punch press, causing a problem that useless operation occurs.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to make it possible to easily manage a combination of an arbitrary punch and a die and to perform a flexible mold changing operation. An object of the present invention is to provide an automatic die changing device and a punching device provided with the automatic die changing device.

[0020]

In order to achieve the above object, an automatic die changing apparatus according to the present invention according to the first aspect of the present invention comprises a plurality of punches and dies to be detached and exchanged with respect to a die exchange region in a punch press. A punch storage device including a plurality of storage sections for detachably storing a mold, and a storage section for a desired punch and a die among the plurality of storage sections, each of which is independently and freely provided in a predetermined take-out area; A die storage device including a die storage device, and a punch holding unit and a die holding unit for holding the punch and the die of the die between the die storage device and the punch press, and the punch holding unit. A die exchanging device in which the die holding units are independently provided so as to be able to move up, down, swivel, advance and retreat freely between a die exchanging area of the punch press and a take-out area of the die accommodating device. It is intended to.

Therefore, the punch holding unit and the die holding unit can be independently moved up and down, swivel, and reciprocate independently, and the punch and die housing units of the die housing unit also have independent punch and die housing units. Therefore, any punch and die stored in the mold storage device can be freely combined and detached without having to combine punches and dies one-to-one as in the related art. Thus, the combination of the punch and the die can be easily managed, and the punch and the die can be replaced simultaneously or independently, so that a flexible and efficient mold replacement can be performed.

According to a second aspect of the present invention, in the punching apparatus according to the first aspect,
The rotary shafts of the punch storage device and the die storage device are separately provided on the same axis.

Therefore, the punch storage device and the die storage device are vertically arranged in accordance with the positions of the upper turret for mounting a punch such as a turret punch press and the lower turret for mounting a die. It is also inexpensively efficient.

According to a third aspect of the present invention, in the punching apparatus according to the first aspect,
The punch storage device and the die storage device are provided at different locations.

Therefore, the punch storage device and the die storage device are not restricted in the vertical direction up to the vertical movement range of the punch holding portion and the die holding portion of the die changing device, respectively. Can be stored.

According to a fourth aspect of the present invention, there is provided a punching apparatus comprising: a rotatable upper turret having a plurality of punch mounting portions for removably mounting a punch; and a plurality of removably mounting dies corresponding to the punch. A turret punch press provided with a rotatable lower turret having a die mounting portion, and a punch for the upper turret and the lower turret and a die for the die are positioned freely in a predetermined mold changing area; A plurality of storage sections for detachably storing the punch and die molds are provided adjacent to a press, and desired punch and die storage sections of the plurality of storage sections are respectively independently taken out of a predetermined take-out area. Mold storage device comprising a punch storage device and a die storage device which are provided so as to be freely positioned on the die, the die storage device and the turret punch press A punch holding unit and a die holding unit for holding the punch and the die of the die, and the punch holding unit and the die holding unit are independently provided with a die changing area of the turret punch press and the die. A mold changing device provided so as to be able to move up and down, turn, move forward and backward with respect to a take-out area of the storage device.

Therefore, when the die of the punch and the die of the upper turret and the lower turret are to be exchanged, the upper turret and the lower turret are rotated to position the die in a predetermined die exchanging area. The mold is moved while being held by the holding section of the mold exchanging device, and is positioned in a predetermined mold take-out area of the mold storage device. The empty storage section of the mold storage device is positioned in the mold take-out area, and the die held by the holding section of the mold changing apparatus is mounted in this empty storage section.

Next, the desired punches and dies of the mold storage device are independently positioned in the take-out area. The punch holding unit and the die holding unit are independently moved up and down, swiveling, moving forward and backward, respectively, to take out the punch and the die independently, and mounted at a predetermined position in a mold changing area of the turret punch press. Then, the upper turret and the lower turret are rotated again, the die is positioned at the punching position, and the work is punched. Therefore, any punch and die stored in the mold storage device can be freely combined and detached without having to combine punches and dies in a one-to-one correspondence as in the related art. It is easy to manage the combination of punch and die,
Since the punch and the die are exchanged simultaneously or independently, a flexible and efficient mold exchange is performed.

According to a fifth aspect of the present invention, in the punching apparatus according to the fourth aspect,
The rotary shafts of the punch storage device and the die storage device are separately provided on the same axis.

Therefore, the punch storage device and the die storage device are arranged vertically in accordance with the positions of the upper turret for mounting a punch such as a turret punch press and the lower turret for mounting a die. It is also inexpensively efficient.

According to a sixth aspect of the present invention, in the punching apparatus according to the fourth aspect,
The punch storage device and the die storage device are provided at different locations.

Therefore, the punch storage device and the die storage device are not restricted in the vertical direction up to the vertical movement range of the punch holding portion and the die holding portion of the die changing device, respectively. Can be stored.

According to a seventh aspect of the present invention, in the punching apparatus according to the present invention, an upper turret is provided with a small diameter with respect to the lower turret, and a rotation center of the lower turret and the upper turret are deviated from each other in a die exchange area of the lower turret. In which the upper turret is not positioned above.

Therefore, since the upper turret is not located above the die exchange region of the lower turret, the die can be easily replaced in the die exchange region of the lower turret by the die holding portion of the mold exchanging device.

[0035]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a punching apparatus according to the present invention will be described below with reference to the drawings.

Referring to FIGS. 2 and 3, a turret punch press 1 according to this embodiment has a frame in which both sides of an upper frame 9 are supported by side frames 5 and 7 erected on both sides of a base 3. Structured. A disk-shaped upper turret 11 is rotatably mounted on the lower portion of the upper frame 9, and various kinds of punches P can be detachably attached to the upper turret 11, as shown in FIGS. A large number of punch mounting portions 13 to be mounted are appropriately provided in the circumferential direction.

On the upper surface of the base 3, the upper turret 1
1 is rotatably mounted on the lower turret 15 which faces the disk 1. The lower turret 15 shown in FIGS.
As shown in FIG. 1, a large number of die mounting portions 1 for detachably mounting a large number of dies D facing the various types of punches P.
7 are appropriately provided in the circumferential direction.

Referring to FIG. 2 and FIG. 3, the upper turret 11 and the lower turret 15 are
Are rotated in the same direction synchronously by such driving means.

The upper turret 11 is provided with a punch exchange area 21 as a space in which a desired punch P of the punch mounting section 13 is exchanged, and the lower turret 15 is provided with a desired die mounting section 17. A die exchange area 23 is provided as a space where the exchange of the die D is performed.

The upper turret 11 and the lower turret 15
The desired rotation of the punch mounting section 13 out of the large number of punch mounting sections 13
And a desired die mounting portion 17 of the large number of die mounting portions 17 is positioned at a predetermined position in the die exchange area 23.

Further, in order to easily replace the die D of the desired die mounting portion 17 in the die exchange area 23, the upper turret 11 is not positioned above the die exchange area 23. That is, the upper turret 11 is configured to be smaller than the lower turret 15, and the rotation shaft 25 of the upper turret 11 and the rotation shaft 27 of the lower turret 15.
Are offset from each other.

As shown in FIG. 3, a ram 29 is provided substantially at the center of the lower surface of the upper frame 9.
(A pressing member) is mounted to be vertically movable. The punch P indexed and positioned at the punching position 31 below the ram 29 by the rotation of the upper turret 11 and the lower turret 15 is pressed by the ram 29.

The turret punch press 1 is provided with a gap portion 33 at the center of the frame structure, and the gap portion 33 is provided with a fixed table 35. A movable table 37 is provided on both left and right sides (upper and lower sides in FIG. 2) of the fixed table 35. A large number of free bearings 39 for movably supporting the work are provided on the upper surface of the fixed table 35.

FIG. 3 showing the upper surface of the movable table 37.
A carriage base 41 for connecting the left and right movable tables 37 is provided across the fixed table 35 at a left end of the fixed table 35.

A Y-axis drive motor 43 is provided at the left end of the frame. The drive of the Y-axis drive motor 43 causes the carriage base 41 to move the left and right movable tables 37.
And move in the Y-axis direction integrally with.

The carriage base 41 includes a carriage 47 having left and right work clampers 45 for gripping the work.
Are provided movably in the X-axis direction (vertical direction in FIG. 2), and are moved in the X-axis direction by the X-axis drive motor 49.

As described above, the turret punch press 1 is provided with the work W movement positioning device 51 for moving and positioning the work W in the front-rear and left-right directions by the Y-axis drive motor 43 and the X-axis drive motor 49. The movement positioning device 51 is a control device such as a numerical control (not shown).
And positions the work W at an appropriate position between the punch P and the die D.

Therefore, after the plate-shaped work W is positioned between the punch P mounted on the turret punch press 1 and the die D mounted on the lower turret 15, the ram 2
9 presses the punch P to form the punch P.
The work W is punched by the die D.

Referring to FIGS. 1 and 2, a mold storage device 53 for detachably storing a large number of punches P and a large number of dies D is provided at a position adjacent to the turret punch press 1. I have.

More specifically, in the mold storage device 53, a support 57 is erected on a base frame 55.
An upper support frame 59 and an intermediate support frame 61 project in a horizontal direction at an upper portion and almost at an intermediate portion thereof. The upper support frame 59 and the intermediate support frame 61
And a die storage device 65 is provided between the base frame 55 and the intermediate support frame 61. The punch storage device 63 and the die storage device 65 are configured to operate independently.

As the punch storage device 63, a punch rotating member 67 extending vertically between the upper support frame 59 and the intermediate support frame 61 includes bearings 69A and 69.
9B, the punch portion rotating member 6
Numeral 7 is provided rotatably by driving of a punch unit storage servomotor 73 via rotation transmission means such as gear mechanisms 71A and 71B.

The punch rotating member 67 is provided with a disk-shaped punch storage 75 in an arbitrary number of stages. Each punch storage 75 has a plurality of punch storage portions 77 for detachably storing punches P. It is provided appropriately in the direction.

As the die storage device 65, a die rotating member 79 extending vertically between the base frame 55 and the intermediate support frame 61 includes bearings 81A and 81B.
The die rotating member 79 is rotatably provided by driving a die housing servomotor 85 via rotation transmitting means such as gear mechanisms 83A and 83B.

The die rotating member 79 is provided with a disk-shaped die storage 87 in an arbitrary number of stages, and each die storage 87 has a plurality of die storage portions 89 for detachably storing the die D. It is provided appropriately in the direction.

Further, in the mold storage device 53, a punch take-out area 91 as a space for taking out a punch P of a desired punch storage portion 77 and a die D of a desired die storage portion 89 are taken out. A die take-out area 93 is provided as a space. A desired punch storage portion 77 of the plurality of punch storage portions 77 is configured to be positioned at a predetermined position in the punch take-out area 91 by driving a punch portion storage servomotor 73. Further, a desired one of the plurality of die storage portions 89 is provided.
The die D is configured to be positioned at a predetermined position in the die take-out area 93 by driving the die part storage servomotor 85.

The punch-unit housing servomotor 73 and the die-unit housing servomotor 85 are electrically connected to a control unit (not shown) for independently controlling the drive. The device is connected.

The storage device has information of a large number of punches P for attaching and detaching to and from a large number of punch mounting sections 13 and information of a large number of dies D for attaching and detaching to and from a large number of die attaching sections 17. In addition, information of a large number of punches P stored in a large number of punch storage portions 77 and information of a large number of dies D stored in a large number of die storage portions 89 are stored.

The arithmetic unit has a large number of storage punches P.
A desired punch P and die D are selected from the information of the storage die D.

Further, the control device has an operation of controlling the punch part storage servomotor 73 so as to position the selected punch P in the punch take-out area 91, and has a function of positioning the selected die D in the die take-out area 93. It has the function of controlling the part storage servomotor 85.

A mold exchanging device 95 for exchanging the punch P and the die D is provided between the turret punch press 1 and the mold accommodating device 53.

More specifically, in the mold exchanging apparatus 95, a guide frame 97 is provided upright on the base frame 55, and an upper guide frame 99 and an intermediate guide frame 101 are horizontally provided above and substantially in the middle of the guide frame 97. Cantilevered in the direction. A punch exchanging device 103 is provided between the upper guide frame 99 and the intermediate guide frame 101, and the punch exchanging device 103 is provided.
Die exchange device 1 between the
05 is provided. The punch exchanging device 103 and the die exchanging device 105 are configured to operate independently.

As the punch exchanging device 103, a punch ball screw 107 extending vertically between the upper guide frame 99 and the intermediate guide frame 101 is supported via a bearing.
Is rotatably provided by driving a punch carry servomotor 111 via rotation transmission means such as gear mechanisms 109A and 109B.

The punch carriage 113 is screwed to the punch portion ball screw 107 and is provided so as to be able to move up and down by the operation of the punch carry servo motor 111 and the punch portion ball screw 107.

The punch carriage 113 has a punch P
A punch exchange arm 117 having a punch holding portion 115 at the distal end portion for detachably holding the punch is supported so as to be pivotable in the horizontal direction via a pivot shaft 119.

To rotate the punch exchanging arm 117 in the horizontal direction, the guide frame 97 is provided with a punch spline shaft 123 which is operatively connected to the punch turning servomotor 121 via a gear mechanism 127A. The frame 99 and the intermediate guide frame 101 are supported via bearings 125A and 125B. The punch spline shaft 123 is connected to the turning shaft 119 via a gear mechanism 127B.

The punch spline shaft 123 penetrates the hole of the punch carriage 113, and the punch holding unit 115 is configured to be able to move forward and backward by the punch cylinder 129 in the longitudinal direction of the punch exchange arm 117. .

The die exchanging device 105 has substantially the same configuration as the punch exchanging device 103. The die ball screw 131 extending vertically between the base frame 55 and the intermediate guide frame 101 includes bearings 133A and 133.
B and the die portion ball screw 13
Numeral 1 is provided rotatably by driving a die carriage servomotor 137 via rotation transmission means such as gear mechanisms 135A and 135B.

The die carriage 139 is screwed into the die part ball screw 131 and the die carriage servo motor 13
7 and the die part ball screw 131 are operated so as to be able to move up and down.

The die carriage 139 supports a die exchange arm 143 having a die holder 141 for detachably holding the die D at a tip end thereof via a pivot shaft 145 so as to be pivotable in the horizontal direction.

In order to rotate the die exchanging arm 143 in the horizontal direction, the die frame spline shaft 149 operatively connected to the die frame turning servomotor 147 via the gear mechanism 153A extends vertically in the guide frame 97 so as to extend vertically. 55 and the bearing 151 on the intermediate guide frame 101.
A, 151B, and the die spline shaft 149 is interlocked to the turning shaft 145 via a gear mechanism 153B.

The die part spline shaft 149 penetrates through the hole of the die carriage 139 and the die holding part 1
Reference numeral 41 is configured to be movable forward and backward by a die cylinder 155 in the longitudinal direction of the die exchange arm 143.

According to the above configuration, when the die of the punch P and the die D of the upper turret 11 and the lower turret 15 are exchanged, the upper turret 11 and the lower turret 15 are rotated by driving the turret servomotor 19. As a result, the desired punch mounting section 13 and die mounting section 17 are positioned in the predetermined punch exchange area 21 and die exchange area 23.

The punch P is moved by the punch exchanging arm 117 of the punch exchanging device 103 between the punch exchanging region 21 of the upper turret 11 and the punch take-out region 91 of the punch accommodating device 63 of the die accommodating device 53, and is exchanged. The die D is moved by the die exchange arm 143 of the die exchange device 105 to the die exchange region 23 of the lower turret 15 and the die storage device 5.
3 is moved and exchanged with the die take-out area 93 of the die storage device 65. The punch exchanging arm 117 and the die exchanging arm 143 rotate or move up and down and back and forth simultaneously or independently to exchange the punch P and the die D respectively.

The operation when the punch P is exchanged by the punch exchanging device 103 will be described. The punch spline shaft 123 is rotated by the driving of the punch rotating servomotor 121, and the punch exchanging arm 117 is moved to the upper turret 11. By turning in the approaching horizontal direction, the punch holding unit 115 turns in one direction and is positioned in the punch replacement area 21.

Next, the servo motor 1 for punch carriage
11, the punch exchange arm 117 is lowered,
The punch P of the predetermined punch mounting section 13 is held.

When the punch carriage servomotor 111 is driven, the punch exchanging arm 117 is raised, and the punch P is moved from a predetermined punch mounting portion 13 of the upper turret 11 to the punch P.
Is detached.

After the punch P is released, the spline shaft 123 of the punch section is rotated by the drive of the servo motor 121 for rotating the punch section, the punch holding section 115 is separated from the upper turret 11, and the punch storage apparatus of the die storage apparatus 53 is opened. 6
3 and is turned in the horizontal direction (the other direction) so as to be positioned in the punch take-out area 91 of the punch storage device 63.

On the other hand, in the punch storage device 63, the empty punch storage 77 is positioned in the punch take-out area 91 by rotating the punch rotation member 67 by driving the punch storage servomotor 73.

Next, the servo motor 1 for punch carriage
The punch P is stored in the empty punch storage unit 77 by driving the drive unit 11 to lower the punch exchange arm 117 and release the holding state of the punch storage unit 77.

Then, the punch exchanging arm 117 once rises and turns in the other direction, and the punch holding unit 115 separates from the punch take-out area 91.

Thereafter, the punch rotating motor 67 rotates the punch rotating member 67 so that a desired punch storing portion 77 of the large number of punch storing portions 77 is located in the punch take-out area 91.

Next, the punch exchanging arm 117 pivots, and the punch holding section 115 is positioned in the punch take-out area 91 and descends, and the punch P stored in a desired punch storage section 77 is held by the punch holding section 115. The punch exchanging arm 117 is lifted to take out a desired punch P.

The punch P held by the punch holding unit 115 is driven by the punch rotating servo motor 121 to rotate the spline shaft 123 of the punch and rotate the punch holding unit 1.
15 is pivoted in the horizontal direction approaching the upper turret 11, and the punch holding unit 115 is pivoted in one direction to be located in the punch exchange area 21.

Next, the servo motor 1 for punch carriage
11, the punch exchange arm 117 is lowered to release the holding state of the punch holding unit 115,
The punch P is mounted on a predetermined punch mounting section 13 in the punch exchange area 21. And the punch exchange arm 1
17 rises and turns in the other direction.

The operation when the die D is exchanged by the die exchanging device 105 is almost the same as the operation when the punch P is exchanged by the punch exchanging device 103 described above, and will be briefly described.

The die part rotation servomotor 147 drives the die part spline shaft 149 to rotate the die exchanging arm 143 in the horizontal direction, and the die holding part 141 is positioned in the die exchanging area 21.

Next, the servo motor 13 for die carriage
7, the die exchanging arm 143 is lowered to hold the die D of the predetermined die mounting unit 13, and then the die exchanging arm 143 is raised by the driving of the die carry servo motor 137, and the die D is mounted. It is detached from the unit 13.

The die part rotation servomotor 147 drives the die part spline shaft 149 to rotate and the die holding part 14
1 is turned in the horizontal direction (other direction) to approach the die storage device 65 of the mold storage device 53, and the die D is moved to the die storage device 6
5 is located in the die take-out area 93.

On the other hand, in the die storage device 65, the die rotation member 79 is rotated by driving the die storage servo motor 85, and the empty die storage 89 is positioned in the die take-out area 93.

After the die exchanging arm 143 is driven down by the driving of the die carriage servo motor 137 and the die D is accommodated in the empty die accommodating portion 89, the die exchanging arm 143 waits at a position separated from the die take-out area 93. I do.

After that, the die part rotating member 79 is rotated by the driving of the die part storage servo motor 85, and a desired die storage part 89 among the many die storage parts 89 is located in the die take-out area 93.

The die exchanging arm 143 pivots, descends, and ascends again to move the die D
Is held by the die holding unit 141 and is taken out.

The die exchanging arm 143 is pivoted in the horizontal direction approaching the lower turret 11 by driving the die part turning servo motor 147, and the die D is mounted on the predetermined die mounting part 13 in the die exchanging area 21.

The desired punch mounting section 13 and die mounting section 17 on which the punch P and the die D are mounted as described above are driven again by the turret servomotor 19 to rotate the upper turret 11 and the lower turret 15 to a predetermined position. The workpiece W is punched.

As described above, the punch holding section 115 and the die holding section 141 can be independently moved up and down, swivel, advance and retreat independently, and the punch holding apparatus 6 of the mold housing apparatus 53 can be used.
3 and the die storage device 65, the punch storage 77 and the die storage 89 can be positioned independently in the take-out area 91 independently of each other. Any punch P and die D stored in the storage device 53 can be freely combined and detached. Therefore, it is easy to manage the combination of the punch P and the die D, and the punch P and the die D can be exchanged simultaneously or independently, so that a flexible and efficient mold exchange can be performed.

As another embodiment, as shown in FIG. 4, a punch storage device 63 and a die storage device 6 are provided.
5 can be installed separately in a separate state at another location. In this case, the punch storage device 63 and the die storage device 65 are respectively connected to the punch holding unit 1 of the die changing device 95.
Since there is no restriction in the vertical direction up to the movable range of the die 15 and the die holder 141 in the vertical direction, many punches P and dies D can be stored.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.

[0098]

As can be understood from the above embodiments of the present invention, according to the first aspect of the present invention, the punch holding unit and the die holding unit are independently movable up and down, swivel, and forward and backward. At the same time, the punch storage device and the die storage device of the mold storage device can also position the punch and die storage sections independently of each other in the take-out area. Any punch and die stored in the mold storage device can be freely combined and detached. Therefore, the combination of the punch and the die can be easily managed, and the punch and the die can be replaced simultaneously or independently, so that a flexible and efficient mold replacement can be performed.

According to the second aspect of the present invention, the punch storage device and the die storage device can be arranged vertically in accordance with the positions of the upper turret for mounting a punch such as a turret punch press and the lower turret for mounting a die. In addition, equipment and work efficiency are reduced.

According to the third aspect of the present invention, the punch accommodating device and the die accommodating device are not restricted in the vertical direction up to the vertical movement range of the punch holding unit and the die holding unit of the die changing device. Therefore, many punches and dies can be stored.

According to the fourth aspect of the present invention, when exchanging the punch and die dies of the upper turret and the lower turret, the upper turret and the lower turret are rotated to set the punch and die dies to a predetermined shape. It can be positioned in the mold change area. The positioned punch and die can be held and moved simultaneously or independently by the punch holding unit and the die holding unit of the die changing device, and can be positioned in a predetermined die take-out area of the die storage device. The empty punch storage section and the die storage section of the mold storage apparatus can be positioned independently in the mold take-out area, and the punch and the die can be independently mounted in these empty storage sections.

Desired punches and dies of the mold storage device can also be positioned independently in the take-out area. The punch and the die can be independently taken out by the punch holding part and the die holding part, and can be mounted at a predetermined position in the die changing area of the turret punch press. Therefore, any punch and die stored in the mold storage device can be freely combined and detached without having to combine punches and dies in a one-to-one correspondence as in the related art. The combination of the punch and the die can be easily managed, and the punch and the die can be replaced simultaneously or independently, so that a flexible and efficient mold replacement can be performed.

According to the fifth aspect of the present invention, the punch storage device and the die storage device can be arranged up and down in accordance with the positions of the upper turret for mounting a punch such as a turret punch press and the lower turret for mounting a die. In addition, equipment and work efficiency are reduced.

According to the sixth aspect of the present invention, the punch storage device and the die storage device are not limited in the vertical direction up to the vertical movement range of the punch holding unit and the die holding unit of the die changing device. Therefore, many punches and dies can be stored.

According to the seventh aspect of the present invention, since the upper turret is not located above the die exchange area of the lower turret, in the die exchange area, the detachment of the die is performed by the die holding unit of the die exchanging device. Can be easily performed.

[Brief description of the drawings]

FIG. 1, showing an embodiment of the present invention, is a side view of an automatic mold changing apparatus.

FIG. 2, showing an embodiment of the present invention, is a plan view of a turret punch press provided with an automatic die changing device.

FIG. 3 is a front view of a turret punch press used in the embodiment of the present invention.

FIG. 4 shows another embodiment of the present invention, and is a plan view of an automatic mold changing apparatus.

FIG. 5 shows a conventional example and is a side view of a mold changing apparatus.

FIG. 6 shows another conventional example and is a side view of a mold changing apparatus.

[Explanation of symbols]

 Reference Signs List 1 turret punch press 11 upper turret 13 punch mounting part 15 lower turret 17 die mounting part 21 punch exchange area 23 die exchange area 31 punching processing position 53 mold storage device 55 base frame 57 support column 59 upper support frame 61 intermediate support frame 63 punch Storage device 65 Die storage device 75 Punch storage 77 Punch storage portion 87 Die storage 89 Die storage portion 91 Punch takeout area 93 Die takeout area 95 Die changing device 99 Upper guide frame 101 Intermediate guide frame 103 Punch changing device 105 Die changing device 113 Punch carriage 115 Punch holding part 117 Punch exchange arm 129 Punch part cylinder 139 Die carriage 141 Die holding part 143 Die exchange arm 155 Die part cylinder

Claims (7)

[Claims] A punch press includes a plurality of storage sections for detachably storing a plurality of punches and dies to be exchanged with respect to a mold exchange area in a die exchange area, and a desired one of the plurality of storage sections. A die storage device comprising a punch storage device and a die storage device, each of which is provided with a punch and a die storage portion independently and freely positioned in a predetermined take-out area, and between the die storage device and the punch press, A punch holding unit and a die holding unit for holding the die of the punch and the die, and the punch holding unit and the die holding unit are independently provided with a die exchange region of a punch press and a take-out region of the die storage device. An automatic die changing device, comprising: a die changing device provided so as to be movable up and down, swiveling, and moving forward and backward. 2. The automatic mold exchanging apparatus according to claim 1, wherein rotation axes of the punch storage device and the die storage device are separately arranged on the same axis. 3. The automatic die changing device according to claim 1, wherein the punch storage device and the die storage device are disposed at different locations. 4. A rotatable upper turret having a number of punch mounting portions for detachably mounting a punch, and a rotatable upper turret having a number of die mounting portions for detachably mounting a die corresponding to the punch. A turret punch press provided with a lower turret and a punch and die for the upper turret and the lower turret so as to be freely positioned in a predetermined mold changing area; and A punch storage device including a plurality of storage sections for detachably storing a mold, and a storage section for a desired punch and a die among the plurality of storage sections, each of which is independently and freely provided in a predetermined take-out area; A die storage device comprising a die storage device; and a die for holding the punch and die die between the die storage device and the turret punch press. The turret punch press and the take-out area of the mold storage device. A punching apparatus, comprising: a mold changing device movably provided. 5. The punching apparatus according to claim 4, wherein rotation axes of the punch storage device and the die storage device are separately arranged on the same axis. 6. The punching apparatus according to claim 4, wherein the punch storage device and the die storage device are arranged at different locations. 7. An upper turret having a small diameter with respect to the lower turret, and a rotation axis of the lower turret and the upper turret being shifted so that the upper turret is not positioned above a die exchange area of the lower turret. The punching apparatus according to claim 4, wherein