JPH0413425A - Turret punch press - Google Patents

Abstract

PURPOSE:To change the die set even if a space between the upper and the lower turrets is narrow by providing a detention release device for releasing a detaining member against energizing force, and a die holding part for holding freely a die set which is attached, detached and changed, on a die change device. CONSTITUTION:A die change device 37 which can attach and detach a die set in the horizontal direction to and from a die set installing area 33 is provided with a detention release device for releasing detaining members 71P, 71D against energizing force, and also, provided with a die holding part 67 for holding freely the die set which is attached, detached and changed. Therefore, the die set is detached and installed from the horizontal direction by the die change device from the into the die set installing area 33 in the upper and the lower turrets 5, 7. Accordingly, even if a space between the upper and the lower turrets is narrow, the die set is changed easily.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a turret punch press, and more specifically, the present invention relates to a turret punch press, and more specifically, to remove a mold set mounted on a turret and remove the mold set to be used next. The present invention relates to a turret punch press equipped with a mold changing device for mounting a mold set on a turret.

(Prior Art) Conventionally, a mold changing device has been used to remove a mold mounted on a turret of a turret punch press and to mount a mold to be used next on the turret.

This mold exchange device includes a pair of a first arm that removes a mold from a turret and a second arm that takes a mold out of a mold storage magazine.

(Problem to be Solved by the Invention) By the way, in the conventional mold changing device described above, the mold set is held at the tips of the first arm and the second arm and lifted upward from the turret or mold storage magazine. Since the mold set was removed, it was necessary to provide an appropriate amount of space above the turret and mold storage magazine. Therefore, the turret punch press itself had to become larger in the vertical direction.

An object of the present invention is to solve the above-mentioned problems by removing the mold set from the turret and moving the mold changing device that grips the mold set from the horizontal direction when mounting the mold set on the turret. An object of the present invention is to provide a turret punch press that can be mounted.

[Structure of the Invention (Means for Solving the Problems)] In order to achieve the above object, the present invention provides a mold set mounting area on the upper and lower turrets of a turret punch press, in which the mold set can be attached and detached, A locking member that engages with an engaging portion formed on a mold base of a mold set installed in this mold set installation area to prevent the mold set from coming off from the mold set installation area is moved up and down. The locking member is provided on the turret and biased in the engaging direction, and the locking member is biased to a mold changing device that attaches and detaches the mold set horizontally to the mold set mounting area. The turret punch press is equipped with a locking release device for unrolling against the pressure, and a mold holding part that can hold a mold set that is attached and detached.

(Function) By employing the turret punch press of the present invention, the upper and lower turrets of the turret punch press are provided with mold set mounting areas where mold sets can be attached and removed. A locking member that engages with an engaging portion formed on a mold base of a mold set installed in the mold set installation area to prevent the mold set from leaving the mold set installation area. It is provided on the upper and lower turrets and is biased in the direction of engagement.

The mold exchange device for horizontally attaching and detaching the mold set to and from the mold set mounting area is provided with a locking and releasing device for unwinding the locking member against a biasing force, Since the mold holder is equipped with a mold holder that can freely hold the mold set that is to be removed and replaced, the mold set can be removed and reinstalled from the horizontal direction using the mold changing device in the mold set mounting areas of the upper and lower turrets. be done. Therefore, even if the space between the upper and lower turrets is narrow, the mold set can be easily replaced.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Since the structure of the turret punch press is already known,
Briefly explain. Referring to FIG. 1, the turret punch press 1 is equipped with a gate-shaped frame 3, and in the center of this concave frame 3, a turret 9 consisting of a rotatable upper turret 5 and a lower turret 7 is mounted on the gate-shaped frame. It is supported by 3.

Molds consisting of a plurality of punches and dies are mounted on the circumferences of the upper turret 5 and the lower turret 7 so as to face each other.

A machining position 11 is provided on the left side of the turret 7, and a mold selected from the molds is indexed to this machining position 11, and is driven by a drive device provided on the upper frame of the concave frame 3. By vertical movement of the striker provided above the processing position, the punch and die cooperate to perform punching at a desired position of the workpiece W positioned at the processing position.

A fixed center table 13 is provided at the lower part of the concave frame 3.
A movable table 15 that is movable in the Y-axis direction (left-right direction in FIG. 1) is provided on both sides of the table 3. When this movable table 15 is moved in the Y-axis direction, it is guided by a plurality of guides 17 extending in the Y-axis direction and is moved smoothly.

A carriage base 1 is mounted on the left end of the movable table 15.
9 is provided extending in the X-axis direction (front-back direction in FIG. 1), and this carriage base 19 is provided with a workpiece moving and positioning device 21. That is, the carriage base 19 is provided with a carriage 23 that is movable in the X-axis direction, and a plurality of work clamps 25 for gripping 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 workpiece W gripped by the workpiece clamp 25 is moved in the X-axis and Y-axis directions. The desired position to be processed is positioned at the processing position and punched.

A workpiece moving and positioning device 21 is provided on the left side with the turret 9 in the center, and a workpiece moving and positioning device 121 is provided.
A mold holding area 27 is provided in the right portal frame 3 on the opposite side.

In this mold holding area 27, a plurality of mold sets 29 consisting of an appropriate number of punches and dies are arranged at appropriate intervals in the Y-axis direction, and a mold set storage part 31 is also arranged vertically facing each other. is provided. Furthermore, the mold set 29 disposed in the mold set storage section 31 is configured to be movable in the Z-axis direction (vertical direction in FIG. 1).

On the circumference of the turret 9 consisting of the upper turret 5 and the lower turret 7, there are a plurality of mold set mounting areas 33 (in this embodiment, the mold set mounting areas 33 are cut into a substantially U-shape, for example, in order to mount the mold set 29). 2 pieces) are provided at appropriate intervals.

Moreover, in FIG. 1, one position of the mold set attachment area 33 is a mold exchange position 1f35.

A mold changing device 37 that is movable in the X-axis and Y-axis directions is provided at the mold changing position 35 and the front side of the mold set storage section 31. There are provided housings 39 (three in this embodiment) which are mold mounting parts that are at least the same as the mold set mounting area 33 .

More specifically, referring to FIGS. 1, 2 and 3, the lower frame 41 of the turret punch brace 1 includes:
In FIG. 2, a plurality of guide rails 43 are provided in parallel extending in the Y-axis direction, which is a direction perpendicular to the plane of the paper.
Each housing 39 is integrally provided via the housing 39.

A ball screw 49 is rotatably supported on bearings 47 provided on both sides of the lower frame 41, and a nut member 51 is screwed onto the ball screw 49. This nut member 51 is attached to the lower part of the housing 39.

With the above configuration, when the drive motor (not shown) is driven, the ball screw 49 rotates, so the housing 39 is moved in the Y-axis direction via the nut member 51. Note that when the housing 39 is moved in the Y-axis direction, it is guided by the guide rail 43, so that it can be moved smoothly.

A plurality of guide rails 53 are provided on the bottom plate 39U of the housing 39 at appropriate intervals and extend in the X-axis direction. Each guide rail 53 has a plurality of guide members 5.
An X-axis gear ledge 57 is provided via 5.

The right side wall 39 in FIG. 2 of the housing 39
An X-axis circumferential cylinder 6] is attached to F via a bracket 59, and the tip of a piston rod 63 attached to this X-axis circumferential cylinder 6 is attached to the X-axis circumferential carriage 57.
It is attached to the upper right wall of the.

With the above configuration, when the X-axis peripheral cylinder 61 is operated,
The X-axis gear ledge 57 is moved in the X-axis direction via the piston rod 63. In addition, the X-axis gear ledge 5
7 is moved in the X-axis direction, it is guided by the guide rail 53 and moved smoothly.

Each of the housings 39 is provided with a locking/unlocking device 65, and the X-axis gear ledge 57 is provided with a mold holding portion 67 for holding a mold set. That is, as shown in FIG. 2 and FIG. 3, the locking and releasing device 65 includes locking members 71P and 71D arranged on both upper and lower sides of each housing 39 via guide members 69, which are arranged along the X axis. These locking members 71P, 71
D are connected by a connecting member 73 at the right end in FIG.

The right side wall 3 in FIG. 2 of each housing 39
A locking and releasing cylinder 75 is provided at 9F, and a piston rod 77 is attached to this locking and releasing cylinder 75. The tip of this piston rod 77 is attached to the connecting member 73.

With the above configuration, when the locking and releasing cylinder 75 is operated, the locking members 71P and 71D connected to the connecting member 73 via the piston rod 77 are moved in the X-axis direction. Note that when the locking members 71F and 71D are moved in the X-axis direction, each guide member 69 is guided along each housing 39.

As shown in FIGS. 2 and 3, the mold holding section 67 includes holding bars 79 that hold a mold set at the top and bottom of the left side of the X-axis gear ledge 57 in FIG. A chuck device 81P, 81D is attached to the tip of each holding bar 79.

Each of the holding bars 79 is integrated with a connecting bar 83 that protrudes to the right within each X-axis gear ledge 57 in FIG. 2, and each connecting bar 83 is connected by a connecting member 85.

A holding cylinder 87 is provided in each of the X-axis gear ledges 57, and the tip (second
A piston rod 89 is attached to the right end (in the figure), and the tip of the piston rod 89 is attached to the connecting member 85.

With the above configuration, when the holding cylinder 87 is operated,
The chuck devices t81P and 81D are moved in the X-axis direction via the piston rod 89, the connecting member 85, and the connecting bar 83.

A replaceable mold set is mounted on a plurality of mold mounting areas 33 provided on the upper turret 5 and lower turret 7 of the turret 9. More specifically, as shown in FIGS. 2 and 4 to 7, the mold mounting area 3 of the upper turret 5
3, a U-shaped notch groove 5V is formed, and a U-shaped mold base 91 (metal mold base 91) with an appropriate number (two in FIG. 2) of punches P is formed in this notch groove 5V. (also referred to as a mold holder) can be horizontally mounted or removed from the right direction in FIG. Note that the structure in which an appropriate number of punches P are mounted on the mold base 91 is well known, and detailed explanation thereof will be omitted.

In FIG. 6, the upper and lower right side of the mold base 91 (5th
An engagement member 95 having an engagement portion 93, which is a U-shaped engagement hole, for example, is attached to both the left and right sides in the figure.

Further, a locking member 97, which is formed of a locking pin, for example, and which locks into the engaging portion 93 is provided to slide vertically within the upper turret 5. A notch 5C is formed in the upper turret 5 at the lower part of the locking member 97, and an L-shaped support block 9 is formed in the notch 5C.
9 is attached with multiple bolts.

A hole is formed vertically through this support block 99, and a threaded rod 101 is inserted into this hole.
The tip of this threaded rod 101 is attached to the locking member 97. The lower part of this threaded rod 101 is the cam follower 10
3 is integrated into a support block 105 which rotatably supports 3. A spring 107 is interposed between the locking member 97 and the support block 99.
07 is always biased upward, which is the biasing direction.

On the upper and lower upper surfaces of the mold base 91 installed in the notch groove 5V in FIG. It is attached with bolts 11]. An elastic member 113 such as rubber is attached to the front side (right side in FIG. 6) of the holding member 109 with a plurality of bolts 115, and when the mold base 91 is inserted, the mold base 9
It plays a role in preventing damage to 1.

Further, on the upper surface of the left side of the mold base 91 installed in the notch groove 5v in FIG. 5 via a bracket 119 with a plurality of bolts 12].

An appropriate number (two in FIG. 2) of dies D are provided in the U-shaped notch groove 7v as the mold mounting area 33 of the lower turret 7.
A U-shaped mold base 123 (also referred to as a mold holder) on which a mold base 123 is mounted can be mounted or removed from the horizontal direction from the right side in FIG.

Note that the structure in which an appropriate number of dies D are mounted on the mold base 123 is already known, and detailed explanation thereof will be omitted.

Engagement members 127 having engagement portions 125, which are, for example, U-shaped engagement holes, are attached to the upper and lower right sides of the mold base 123 in FIG. 7 (both left and right sides in FIG. 5). . Further, a locking member 129, which is formed of, for example, a locking pin, and which locks into this engaging portion 127 is provided to slide vertically within a support member 131 attached to the lower turret 7. A notch 7C is formed in the lower turret 7 at the lower part of the locking member 129.
An L-shaped support block 133 is attached to this notch 7C with a plurality of bolts.

A hole is formed through the support block 133 in the vertical direction, and a threaded rod 135 is inserted into this hole, and the tip of the threaded rod 135 is attached to the locking member 129. The lower part of this tension rod 135 is integrated with a support block 139 that rotatably supports a cam follower 137.

A spring 141 is interposed between the locking member 129 and the support block 133, and the spring 141 is always biased upward, which is the biasing direction.

On the upper and lower upper surfaces of the mold base 123 and the support member 131 in FIG. There is. An elastic member 147 made of rubber or the like is attached to the front side (right side in FIG. 7) of the holding member 143 with a plurality of bolts 149, and when the mold base 123 is inserted, the mold base 12
It plays a role in preventing damage to 3.

With the above configuration, as shown in FIG. 4, the locking members 71P and 71D move to the left in FIG. When you ride on the support block 1
05, 133, the locking members 97, 129 descend through the threaded rods 101, 135 against the biasing force of the springs 107, 141, and the engaging portions 93, 12 of the engaging members 95, 127
5 and is unwound, the mold base 91.
123 is a support member 131 for the upper turret 5 and lower turret 7
becomes free, and the mold bases 91 and 123 on which the punch P and die D are mounted can be removed from the mold set mounting area 33.

As shown in FIG. 2, the mold bases 91, 123 have, for example, U-shaped chuck devices 81P, 81D for moving leftward in FIG. 2 to hold the mold bases 91°123. Holding holes 151, 153 consisting of shaped holes
is formed. Therefore, the chuck device 81P,
When 81D is installed in the holding holes 151 and 153, the mold bases 91 and 123 are automatically held. Note that the structure of the chuck devices 81P and 81D is similar to a known collet chuck, with holding holes 151.15.
3 is attached, it is automatically held.

Next, the mold set 29 of this embodiment is placed in the mold set storage part 3.
The mold set 29 is removed from the mold set mounting area 33 of the turret 9 at the mold exchange position 35, or the mold set 29 is removed from the mold set attachment area 33 at the mold exchange position, and the mold set is stored. The operation of exchanging the molds stored in the section 31 will be explained.

First, move the housing 39 of the mold changing device 37 to the right in the Y-axis direction in FIG.
position at the required position.

Then, the X-axis cylinder 61 is operated to move the X-axis gear ledge 57 toward the mold set storage section 31, and the holding cylinder 87 is further operated to move the chuck devices 81P, 8
1D moves backward in the X-axis direction in FIG. In the example, two are held. It is then returned to its original position.

Next, the housing 39 is moved to the left in the Y-axis direction in FIG. 1, and the empty housing 39 without the mold set 29 attached thereto is stopped at the mold exchange position 35. X
The circumferential cylinder 61 is operated to move the X-axis gear ledge 57 to the left in FIG. 2, and when it comes near the turret 9, it is stopped.

Next, when the locking and releasing cylinder 75 is actuated, the locking members 71P and 71D move onto the cam followers 103 and 137 supported by the support members 131 of the upper turret 5 and lower turret 7 via support blocks 99°133. By riding on the upper turret 5 and the lower turret 7, the locking members 97.129 are lowered and disengaged from the engaging portions 93.125 of the engaging members 95' and 127, and the mold bases 91°123 are attached to the upper turret 5 and the lower turret 7, respectively. It will be in a free state with respect to the support member 131.

After that, the holding cylinder 87 is operated to hold the mold base 9.
The chuck devices 81P and 81D are inserted into the holding holes 151 and 153 provided in the mold base 91.
, 123 are held. In this state, the locking members 71P, 71
By moving D to the right in FIG. 4 and returning it to its original position, the mold bases 91 and 123 of the mold set 29 are removed from the mold set mounting area 33. Note that when the locking members 71P and 71D return to their original positions, the locking members 97 and 129 are lifted upward by the urging force of the springs 107 and 141.

Next, move the housing 39 slightly in the Y-axis direction to position the housing 39 holding the mold set 29 at the mold exchange position 35, and move the X-axis gear ledge 57 to the rear in the X-axis direction in FIG. After moving the locking and releasing cylinder 75 to lower the locking members 97 and 127, the mold set 29 is moved to the mold set mounting area 3.
3 is inserted.

With the mold set 29 inserted into the mold set mounting area 33, the holding cylinder 83 is operated, and the chuck device 8
1P, 81D from the holding holes 15 ], , ] 53, and operate the locking/releasing cylinder 75 to release the locking member 71.
When P and 71D are moved to the right in FIG. 4, the locking member 97127 is engaged with the engaging portions 93 and 125 of the engaging members 95 and 127 by the biasing force of the springs 107 and 141, and the mold set 29 is set in the mold set mounting area 33.

In the manner described above, rotate the upper turret 5 and lower turret 7 to move another mold set mounting area 33 to the mold exchange position 35.
After indexing, the mold changing device 37 is operated to remove the mold set 29 set in the mold set mounting area 33, and replace the other mold set 29 mounted on the housing 39 with the mold. It is mounted in the set mounting area 33.

In this way, the movement area of the mold changing device 37 in the Y-axis direction overlaps with a part of the movement area of the workpiece moving and positioning device 21 in the Y-axis direction, as shown in FIG. As a result, the planar exclusive space of the entire turret punch press 1 can be made smaller compared to conventional ones, and the takt time for changing molds can be shortened compared to conventional ones. can.

Furthermore, since the mold changing device 37 is equipped with a housing 39 that is a mold mounting part that is at least the same as the plurality of mold set mounting areas 33 provided on the turret 9, the plurality of mold sets 29 can be aligned. Since it can be attached and detached, the molds required for processing can be replaced in a shorter time than in the past.

Furthermore, since the mold set 29 can be removed from the horizontal direction and installed in the mold set mounting area 33 of the upper and lower turrets 5 and 7 using the mold changing device f37, the upper and lower turrets 5 and 7 Even if the space is small, the mold set can be easily replaced.

Note that the present invention is not limited to the embodiments described above, and can be implemented in other embodiments by making appropriate changes. For example, in this embodiment, the turret 9 has two mold set mounting areas 33, and the mold changing device 37 has three housings 39, which are mold mounting parts. It is also possible to further increase the number of housings 39 and provide the mold changing device 37 with at least the same number of housings 39 as the mold set mounting areas 33.

Furthermore, although an example has been described in which the mold holding area 27, which is the mold set storage section 31, is provided on the right side inside the portal frame 3 of the turret punch press 1, it may also be provided on the outside near the right side of the portal frame 3. It is possible.

Furthermore, although the example was explained in which the locking members 97, 129 are engaged and disengaged by moving up and down the engagement portions 93° 125 of the engagement members 95, 127, the locking members 97, 129 are rotated to engage and disengage. It doesn't matter if it's compatible.

[Effects of the Invention] As understood from the description of the embodiments above, according to the present invention, since the structure is as described in the claims, it is possible to attach the mold set to the upper and lower turrets. In the area, the mold set can be removed or installed horizontally by means of a mold changer. Therefore, even if the upper and lower turret spaces are narrow, the mold set can be easily replaced.

In addition, since the structure does not mount an actuator to fix the mold set to the turret, the turret space is saved, the dead zone to the workpiece is minimized, the structure is simple, the cost is low, and the maintenance is simple. It's also easy.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a turret punch press according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view taken in the direction of the ■ arrow in FIG. 1, and FIG. 4 is an enlarged sectional view of the section viewed from the ■ arrow in FIG. 2, FIG. 5 is a sectional view taken along line v-V in FIG. 4, and FIG. Plan view, FIG. 7 is a plan view of the lower turret in FIG. 4. 1... Turret punch press 3... Gate-shaped frame 5... Upper turret 7...
・Lower turret 15...Movable table 21...
Workpiece movement and positioning device 27... Mold holding area 29... Mold set 31
... Mold set storage section 33 ... Mold set mounting area 35 ... Mold exchange position 37 ... Mold exchange device 39 ... Housing 57 ... X-axis gear ledge 61
... X-axis circumferential cylinder 65 ... locking and releasing device 67
... Mold holding part 67 ... Cylinder for locking and unlatching 71P, 71D ... Locking member 81P, 81D ... Chuck device 87 ... Cylinder for holding 91 ... Mold base 9
5... Engaging member 97... Locking member 103...
・Cam follower 107...Spring 123...
・Mold base 127...Engagement member 129...
Locking member 137...Cam follower 141...Spring Fig. 3 Agent: Hidekazu Miyoshi, patent attorney = ■ Fig. 6

Claims (1)

[Claims] The upper and lower turrets of the turret punch press are provided with a mold set mounting area where the mold set can be attached and detached freely, and engage with the engaging part formed on the mold base of the mold set installed in this mold set mounting area. A locking member is provided on the upper and lower turrets to prevent the mold set from coming off from the mold set mounting area, and is biased in the direction of engagement, and A mold changing device for horizontally attaching and detaching a mold set is provided with a lock release device for releasing the locking member against a biasing force, and is capable of freely holding the mold set to be attached and detached. A turret punch press characterized by being equipped with a mold holding section.