JP2706360B2 - Turret punch press die changing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a turret punch press die changing apparatus.

(Prior art) Conventionally, turrets in a turret punch press include:
A limited number of dies were installed, and the dies were replaced manually. In addition, a mold changing device is used to remove a mold mounted on the turret and mount a mold turret to be used next.

This mold exchanging device is used for removing a mold from a turret.
And a second arm for taking out the mold from the mold storage magazine are configured as a pair.

(Problems to be Solved by the Invention) By the way, in the above-mentioned conventional die changing device, the arm needs to be moved up and down because the die storage magazine and the die position at the time of processing do not match. In addition, a large space is required and a complicated operation is required. In addition, there has been a problem that the structure is complicated, the cost is high, and maintenance requires a lot of time.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, a turret punch press in which dies are exchanged in a short time by a combination of simple linear motions, and the structure is simplified, cost is reduced, and maintenance is free. A mold changing device.

[Structure of the Invention] (Means for solving the problem) In order to achieve the above object, the present invention provides an upper and lower turret provided with a mold set mounting area in which a mold set can be detachably replaced. A mold changing device for horizontally removing and replacing a mold set to be mounted in the mold set mounting area is provided with an unlocking device for unlocking the mold set mounted in the mold set mounting area. A mold holding portion capable of holding a mold set to be detached and replaced, and a mold holding device provided between a turret punch press provided with the turret and a mold holding area provided between the turret and the mold exchanging device. The turret punch press was equipped with a mold moving means for horizontally removably moving the mold set at the same height.

(Effect) By employing the turret punch press die changing device of the present invention, a die holding region provided adjacent to the turret punch press and a die set mounting region provided on the turret of the turret punch press are provided. The mold set is exchanged by the mold exchanging device by the mold moving means which can be moved horizontally and at the same height. That is, the mold set held by the mold holding unit provided in the mold exchanging device is horizontally moved to the mold set mounting area provided in the turret, and the mold set is attached / detached. Also, in the mold holding area, to exchange a mold set, the mold holding section of the mold exchanging device is horizontally moved and the mold set is exchanged at the same height.

For this reason, the mold exchange is performed with a short hang length by a combination of simple horizontal operations.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Since the structure of the turret punch press is already known, it will be schematically described. Referring to FIG. 1, the turret punch press 1 includes a portal frame 3, and a turret 9 composed of a rotatable upper turret 5 and a lower turret 7 is provided in the center of the portal frame 3. Supported on frame 3. This upper turret 5 and lower turret 7
A plurality of punches and dies are mounted opposite to each other on the circumference.

A processing position 11 is provided on the left side of the turret 7, a die selected from the die is indexed at the processing position 11, and a driving device provided on an upper frame of the portal frame 3. As a result, the punch and the die cooperate with each other to perform punching at a desired position of the work W positioned at the processing position due to the vertical movement of the striker provided above the processing position.

A fixed center table 13 is provided below the portal frame 3.
A movable table 15 is provided on both sides of the movable table 15 so as to be movable in the Y-axis direction (the horizontal direction in FIG. 1). When the movable table 15 is moved in the Y-axis direction, the movable table 15 is guided by a plurality of guides 17 extending in the Y-axis direction and is smoothly moved.

A carriage base 19 is provided on the left end of the movable table 15.
The carriage base 19 is provided with a workpiece movement positioning device 21. The carriage base 19 extends in the X-axis direction (the front-rear direction in FIG. 1). That is, the carriage base 19 is provided with a carriage 23 that can move in the X-axis direction, and a plurality of work lamps 25 that grip the work W are attached to the carriage 23.

With the above configuration, the movable table 15 is moved in the Y-axis direction and the carriage 23 is moved in the X-axis direction, so that the work W gripped by the work lamp 25 is moved in the Y-axis direction for processing. The desired position to be processed is positioned at the processing position and punching is performed.

A work movement positioning device 21 is provided on the left side with the turret 9 at the center.
A mold holding area 27 is provided in the gate-shaped frame 3 on the right side, which is the opposite side of the mold.

In the mold holding area 27, a plurality of mold sets 29 each including an appropriate number of punches and dies are arranged at appropriate intervals in the Y-axis direction.
And the mold set storage section 31 which is arranged facing up and down
Is provided. In addition, the mold set 29 disposed in the mold set storage section 31 is configured to be movable in the Z-axis direction (the vertical direction in FIG. 1).

A turret 9 comprising the upper turret 5 and the lower turret 7
A plurality of (three in this embodiment) mold set mounting regions 33 cut into, for example, a substantially U-shape to mount the mold set 29 are provided at appropriate intervals on the circumference of the circle. In addition, in FIG. 1, one of the positions of the mold set mounting area 33 is a mold changing position 35.

A mold exchanging device 37 that is movable in the X-axis and Y-axis directions is provided in front of the mold exchanging position 35 and the mold set storage unit 31, and the mold exchanging device 37 includes the plurality of molds. A housing 39 (four in this embodiment), which is at least the same die mounting portion as the die set mounting region 33, is provided.

A plurality of guide rails 45 extending in the Y-axis direction as mold moving means 43 are provided in parallel on a base plate 41 provided from the gate-shaped frame 3 via columns (not shown). Each housing 39 is integrally provided on the rail 45 via a plurality of guide members (not shown). To move the housing 39 in the horizontal direction, a ball screw 47 that is rotated by a driving source such as an electric motor is provided between the guide rails 45, and a nut member (not shown) provided on the housing 39 side is omitted. And can be moved freely.

More specifically, referring to FIG. 2, FIG. 3 and FIG. 4, the mold moving means 43 is formed by a base plate 41 provided by a portal frame 3 of the turret punch press 1 via a support column 59 in a horizontal direction. And a plurality of guide rails 45 are provided on the base plate 41 in parallel. The guide rail 45 is engaged with a guide member 51 such as an LM guide fixed to a bracket 49 provided integrally with the housing 39.

Further, the lower frame is used to move the housing 39.
A ball screw 47 is rotatably supported on bearings 53 provided on both sides of the 41, and a nut member 55 is screwed to the ball screw 47. The nut member 55 is the housing
A drive motor 57 is connected to one end of the ball screw 47, which is provided on a bracket 49 constituting the 39.

According to the above configuration, when the drive motor 57 is driven, the ball screw 47 is rotated.
39 is moved in the Y-axis direction. When the housing 39 is moved in the Y-axis direction, it is smoothly moved because it is guided by the guide rail 45.

The respective stopping positions of the housing 39 are shown in FIG. That is, the housing 39 located on the left side in FIG.
Indicates a mold replacement position where a mold is mounted on the turret 9 or the mold is pulled out from the turret 9. The middle housing 39 indicates the waiting position, and the right housing 39 indicates the position where the mold set 29 is taken out or stored from the mold holding area 27.

The operation of the above-described configuration will be described. When a mold housed in the mold set housing section 31 is required, the mold set housing section which requires the housing 39 of the mold changing device 37 is required.
Positioned at 31, the mold set 29 is stored in the housing 39, and waited at the waiting position until there was an instruction to replace the turret 9. When a mold exchange command is issued, the housing 39 is moved to the mold exchange position 35 of the turret 9 and the mold set 29 is exchanged.

The mold set 29 mounted on the turret 9 is held in the mold holding area.
Empty housing of mold changer 37 when storing in 27
The mold 39 is positioned at the mold changing position 35, and the unnecessary mold set 29 mounted on the turret 9 is stored in the housing 39. Then, the mold moving means 43 is driven to move the mold holding area.
The mold set 29 is stored in the empty storage section 31 of 27, the mold set 29 is stored in the mold changing device 37, and then a new mold set 29 is removed from the mold set storage section 31 and stored in the housing 39. Move to the position and wait for the next command.

 The mold exchanging device 37 will be described in more detail.

With reference to FIGS. 5 to 10, guide members 51 are provided at appropriate intervals on side plates 49a of brackets 49 provided integrally with the housing 39, and the guide members 51 Base plate provided via support column 59
In FIG. 41, Y is a direction orthogonal to the paper surface in FIG.
It is engaged with a plurality of guide rails 45 extending in the axial direction.

A ball screw 47 is rotatably supported on bearings 53 provided on both sides of the base plate 41, and a nut member 55 is screwed onto the ball screw 47. The nut member 55 is attached to the side plate 49a of the bracket 49 of the housing 39.

A plurality of guide rods 61 are provided on the housing 39 at appropriate intervals so as to extend in the X-axis direction. An X-axis carriage 65 is provided on each guide rod 61 via a plurality of bushes 63.

Both ends of a cylinder portion 69 of a rodless cylinder 67 extending in the X-axis direction are fixed to the housing 39 by lock nuts 71. The drive portion 73 of the rodless cylinder 67 is locked to the X-axis carriage 65.

With the above configuration, when the rodless cylinder 67 is operated, the X-axis carriage 65 is moved in the X-axis direction via the drive unit 73. When the X-axis carriage 65 moves in the X-axis direction, it is guided by the guide rod 61 and moves smoothly.

Each of the housings 39 is provided with an unlocking device 74, and the X-axis carriage 65 is provided with a mold holding portion 75 for holding the mold set 29. That is, as shown in FIGS. 5 and 6, the lock release device 74 includes guide members 77 on the upper and lower sides of each housing 39.
The locking members 79P and 79D are provided to extend in the X-axis direction via the connecting members 79P and 79D. The locking members 79P and 79D are connected by a connecting member 81 at the right end in FIG.

In each of the housings 39, a lock release cylinder 85 is rotatably provided on a bearing block 83 provided on a side plate 49a of a bracket 49 provided integrally with the housing 39 in FIG. A joint 89 is provided at the tip of the piston rod 87 of the cylinder 85. This joint 89
A link 91 is rotatably engaged with the shaft 39, and the link 91 is rotatably engaged with a shaft 93 provided in the housing 39.
The other side of the cylinder 91 is rotatably engaged with a pin 95 provided on the connecting member 81.

With the above configuration, when the unlocking cylinder 85 is operated, the piston rod 87 expands and contracts, and the link 91 rotates about the shaft 93, so that the locking member connected to the connecting member 81
79P and 79D will be moved in the X-axis direction. When the locking members 79P and 79D are moved in the X-axis direction, each guide member
77 is guided along each housing 39.

As shown in FIG. 5 and FIG. 6, the mold holding portion 75 includes a
In the figure, a holding bar 97 for holding the mold set 29 is provided on the upper and lower left sides, and chuck devices 99P and 99D are positioned at the tip of the holding bar 97.

Each of the holding bars 97 is integrally connected to a holding cylinder 101 locked to the X-axis carriage 65, and a piston rod 103 of the holding cylinder 101 penetrates the inside of each holding bar 97,
At the tip of this piston rod 103, the chuck device 99P,
99D is bound. A spring 105 is built in the holding bar 97 and constantly urges the piston rod 103 in a direction to retract. Still further, the chuck device 99
The structures of P and 99D are already known collet chuck structures.

With the above configuration, when the holding cylinder 101 is operated, the chuck devices 99P and 99D provided on the piston rod 103 are operated.
Is moved in the X-axis direction.

An exchangeable mold set 29 is mounted in a plurality of mold set mounting areas 33 provided on the upper turret 5 and the lower turret 7 of the turret 9. More specifically, as shown in FIGS. 5 to 10, a U-shaped notch groove 5V is formed as a mold set mounting area 33 of the upper turret 5,
In this notched groove 5V, a U-shaped mold base 107 (also referred to as a mold holder) to which an appropriate number (two in FIG. 5) of punches P are mounted is horizontally arranged from the right in FIG. It can be attached or removed. Since a structure in which an appropriate number of punches P are mounted on the mold base 107 is already known, detailed description will be omitted.

An engaging member 111 having an engaging portion 109, which is, for example, a U-shaped engaging hole, is attached to the upper and lower right sides (the left and right sides in FIG. 8) of the mold base 107 in FIG.
Further, a locking member 113 formed of, for example, a locking pin for locking to the engaging portion 109 is provided to slide vertically in the upper turret 5. A notch 5C is formed in the upper turret 5 below the locking member 113, and an L-shaped support block 115 is attached to the notch 5C with a plurality of bolts.

A hole penetrating the support block 115 in the vertical direction is formed, and a screw rod 117 is inserted into this hole,
The tip of the screw rod 117 is attached to the locking member 113. The lower portion of the threaded rod 117 is integrated with a support block 121 that rotatably supports the cam follower 119. A spring is provided between the locking member 113 and the support block 115.
The spring 123 is always biased upward, which is the biasing direction.

In FIG. 9 of the mold base 107 mounted in the notch groove 5V, a plurality of pressing members 125 are provided on the upper turret 5 so that the mold base 107 protrudes upward and does not come off. Mounted with bolts 127. An elastic member 129 such as rubber is attached to the front side (the right side in FIG. 9) of the pressing member 125 with a plurality of bolts 131. When the mold base 107 is inserted, the mold base 107 is damaged. It plays a role that does not stick.

Further, an L-shaped pressing member 133 is provided on the upper surface on the left side of the mold base 107 mounted in the notch groove 5V in FIG. 9 so that the mold base 107 does not protrude upward and come off. 5 bolts 1 through bracket 135
Installed at 37.

A U-shaped die base 139 (die holder) in which an appropriate number (two in FIG. 5) of dies D are mounted in the U-shaped cutout groove 7V as a die set mounting area 33 of the lower turret 7 ) Can be mounted or removed from the right in FIG. 10 from the horizontal direction. Since a structure in which an appropriate number of dies D are mounted on the mold base 139 is already known, detailed description will be omitted.

An engagement member 143 having, for example, an engagement portion 141 which is a U-shaped engagement hole is mounted on the upper and lower right sides (the left and right sides in FIG. 8) of the mold base 139 in FIG. . Further, a locking member 145 formed of, for example, a locking pin for locking to the engaging portion 143 is provided so as to slide vertically in a support member 147 attached to the lower turret 7. A notch 7C is formed in the lower turret 7 below the locking member 145, and the notch 7C
An L-shaped support block 149 is attached to the base with a plurality of bolts.

A hole penetrating the support block 149 in the vertical direction is formed, and a screw rod 151 is inserted into this hole,
The tip of the screw rod 151 is attached to the locking member 145. The lower portion of the screw rod 151 is integrated with a support block 155 that rotatably supports the cam follower 153. A spring is provided between the locking member 145 and the support block 149.
The spring 157 is constantly urged upward, which is the urging direction.

In FIG. 10, upper and lower surfaces of the mold base 139 and the support member 147 are provided with pressing members 159 on the support portion 147 so that the mold base 139 does not project upward.
Installed at 161. The front side of the holding member 159 (tenth
An elastic member 163 made of rubber or the like is mounted in a plurality of bolts 165 in the right side (in the figure), and serves to prevent the mold base 139 from being damaged when the mold base 139 is inserted.

With the above configuration, as shown in FIG. 7, the locking members 79P and 79D move leftward in FIG.
The inclined portions at the tips of the locking members 79P and 79D are cam followers 119,
When riding on 153, support blocks 121, 149, screw rod 117,
The locking members 113 and 145 descend via the springs 123 and 157 via the 151 to lower the engaging portions 109 and 141 of the engaging members 111 and 143.
Release from the mold base 107, 139
Are the support members 147 of the upper turret and the lower turret 7, and the mold bases 107 and 13 on which the punch P and the die D are mounted are free.
9 is ready to be removed from the mold set mounting area 33.

As shown in FIG. 5, the chuck bases 99P and 99D move to the left in FIG. 5 to hold the mold bases 107 and 139, for example, as shown in FIG.
The holding holes 167 and 169 each having a letter-shaped hole are formed.
Therefore, when the chuck devices 99P and 99D are mounted in the holding holes 167 and 169, the mold bases 107 and 139 are automatically held.

Next, the mold set 29 according to the present embodiment is
From the mold set mounting area 33 of the turret 9 at the mold changing position 35, or the mold set 29 is removed from the mold set mounting area 33 at the mold changing position,
The operation of exchanging the mold stored in the mold set storage section 31 will be described in more detail.

First, the housing 39 of the mold exchanging device 37 is moved rightward in the Y-axis direction in FIG. Then, the rodless cylinder 67 is operated to move the X-axis carriage 65 into the mold set storage section.
31 and then the holding cylinder 101 is operated to move the chuck devices 99P and 99D backward in FIG. 1 in the X-axis direction, and the die base on which the punch P and the die D are mounted.
In this embodiment, two mold sets 29 are held by being mounted in holding holes 167, 169 formed in 107, 139. Then, it is returned to the original position.

Next, the housing 39 is moved to the left in the Y-axis direction in FIG. 1, and the empty housing 39 on which the mold set 29 is not mounted is stopped at the mold changing position 35. By operating the rodless cylinder 67, the X-axis carriage 65 is moved to the left in FIG. 5, and stopped when it comes near the turret 9.

Next, when the unlocking cylinder 85 is actuated, the locking members 79P and 79D are brought into contact with the support members 1 of the upper turret 5 and the lower turret 7.
The locking member 1 is mounted on the cam followers 119 and 153 supported by the support blocks 115 and 149 via the support blocks 115 and 149.
13,145 descends and disengages from the engaging portions 109,141 of the engaging members 111,143, and the mold bases 107,139 respectively move the upper turret 5,
The support member 147 of the lower turret 7 is free.

After that, the holding cylinder 101 is operated to set the mold base 1
Chuck device 9 is inserted into holding holes 167 and 169 provided in 07 and 139.
9P and 99D are inserted to hold the mold bases 107 and 139. In this state, the locking members 79P and 79D are moved rightward in FIG. 7 and returned to the original positions, whereby the mold bases 107 and 139 of the mold set 29 are removed from the mold set mounting area 33. When the locking members 79P and 79 return to their original positions, the locking members 113 and 145 are lifted upward by the urging forces of the springs 123 and 157.

Next, the housing 39 holding the mold set 29 is slightly moved in the Y-axis direction to move the housing 39 to the mold changing position.
After the X-axis carriage 65 is moved rearward in the X-axis direction in FIG.
Activate to lower the locking members 113 and 145,
The mold set 29 is inserted into the mold set mounting area 33.

With the mold set 29 inserted into the mold set mounting area 33, the holding cylinder 101 is operated, and the chuck devices 99P and 9P are operated.
When 9D is pulled out from the holding holes 167, 169 and the unlocking cylinder 85 is actuated to move the locking members 79P, 79D rightward in FIG.
The mold set 29 is set in the mold set mounting area 33 by being engaged with the engaging portions 109 and 141 of the engaging members 111 and 143 with the urging force of 3,157.

In the manner described above, the upper turret 5 and the lower turret 7 are rotated to index another mold set mounting area 33 to the mold changing position 35, and then the mold changing apparatus 37 is operated to set the mold. Remove the mold set 29 set in the mounting area 33,
The other mold set 29 mounted on the housing 39 is mounted on the die set mounting area 33.

As described above, the mold set 29 is mounted or detached from the turret punch press 1 in the mold set mounting area 33 by the horizontal movement by the mold exchanging device 37, and the turret punch press 1
Is moved horizontally at the same height by the mold moving means 43 to the mold set storing section 31 adjacent to the mold set, and the mold set 29 is stored in the mold set storing section 31 or taken out.

Thus, by a combination of simple horizontal movements, the mold replacement is performed with a short hunting length, the structure is simple, the cost is reduced, and maintenance-free operation can be achieved.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. For example, in this embodiment, the turret 9
In the example described above, three mold set mounting areas 33 are used, and four housings 39, which are mold mounting parts, are used for the mold exchanging device 37. It is also possible to provide the 37 with at least the same number of housings 39 as the number of the mold set mounting areas 33.

Further, although the example in which the mold holding area 27 as the mold set storage unit 31 is provided on the right side in the portal frame 3 of the turret punch press 1 has been described, the mold holding area 27 may be provided outside near the right side of the portal frame 3. Available.

Further, a locking member is provided on the engaging portions 109 and 141 of the engaging members 111 and 143.
Although the example in which the members 113 and 145 are vertically disengaged and disengaged has been described, a configuration in which the locking members 113 and 145 are rotated and engaged may be employed.

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, since the configuration is as described in the claims, the mold mounting area in the upper and lower turrets Then, the mold set can be removed or mounted from the horizontal direction by the mold exchanging device. Further, the mold exchanging device holding the mold set to be exchanged is horizontally moved by the mold moving means from the mold set storage portion in the mold holding area, and exchange is performed at the same height.

Therefore, it is a combination of only a simple linear motion, the mold can be changed in a short time, the structure is simple, the cost can be reduced, and the maintenance is free and the productivity is improved. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view of a turret punch press according to one embodiment of the present invention, FIG. 2 is an enlarged view of a portion taken along the arrow II in FIG. 1, FIG. 3 is a plan view in FIG. Is a left side view in FIG. 2, FIG. 5 is an enlarged sectional view taken along the arrow V in FIG. 1, FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5, and FIG. 8 is an enlarged sectional view taken along the line VII in FIG. 8, FIG. 8 is a sectional view along VIII-VIII in FIG. 7, FIG. 9 is a plan view of the upper turret in FIG.
The figure is a plan view of the lower turret in FIG. 1 Turret punch press 5 Upper turret 7, Lower turret 27 Mold holding area 29 Mold set area 33 Mold set mounting area 37 Mold changing device 43 Mold moving means 73: Lock release device, 75: Mold holding part

Claims (1)

(57) [Claims] 1. A mold for mounting and dismounting a mold set in the upper and lower turrets in which a mold set can be detached and exchanged, and for detaching and replacing a mold set mounted in the mold set attaching area in a horizontal direction. The exchange device is provided with an unlocking device for unlocking the mold set mounted in the mold set mounting area, and a free mold holding portion for holding a mold set to be detached and replaced is provided. Between the turret and a mold holding area provided adjacent to the provided turret punch press,
A mold exchanging device for a turret punch press, comprising: a mold moving means for allowing the mold exchanging device to be horizontally moved and for detaching and replacing a mold set at the same height.