JPH0739959A - Device for punching metal sheet - Google Patents

Abstract

PURPOSE:To make a device for punching a metal sheet whooly compact by reducing by half the horizontal width of a gate for passing a material at the part for punching a metal sheet. CONSTITUTION:In the metal sheet punching device in which a metal sheet 21 to be punched is moved by the use of an X-table 17 and a Y-table 14 and in which a plural number of holes are punched at prescribed positions with a pair of punch 1 and die 3, the horizontal width L of the gate 5 for passing a material at the punching part 24 is reduced by half, by providing a means 25 for rotating the metal sheet by 180 deg. after a half area of the metal sheet 21 has been punched and by performing a punching on the remaining half area after the 180 deg. rotation, so that the device is made compact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for mainly manufacturing a metal mask by punching a thin plate, and more particularly to a sheet material punching apparatus in which a material passage opening of a punching portion is reduced to about half of a conventional one.

[0002]

2. Description of the Related Art Conventionally, a metal mask punch press as shown in FIG. 2 has been known as an apparatus for manufacturing a metal mask by punching a thin plate.

The metal mask punch press includes a punch holder 2 for mounting a plurality of punches 1, 1a, 1b in a straight line, and dies 3, 3a, 3b for punching 1, 1a, 1b.
The die holder 4 for mounting a plurality of pieces corresponding to b is integrated, and the punching portion 24 having the material passage port 5 for the plate material 21 in the central portion of the front surface 22 and the plate material 21 are moved in the X direction. The plate 6 is composed of a plate material conveying unit 23 provided with a table 6, a Y table 7 that moves in the Y direction, and a clamp mechanism 8 that holds the plate material 21 on the Y table 7.

The operation of the conventional metal mask punch press shown in FIG. 2 will be described below.

When one end of the plate 21 is gripped by the clamp mechanism 8, the X table 6 and the Y table 7 are automatically moved to predetermined positions for punching, and the plate 21 partially passes through the material passage port 5. Pass and stop.

In that state, the punches 1, 1a, 1b
When the holes are drilled by the dies 3, 3a and 3b, the X table 6 and the Y table are placed at another predetermined position where the holes should be drilled next.
The table 7 is moved and repeatedly punched by a predetermined punch and die in the same manner. When all the punching is completed in this way, the material is taken out from the material passage port 5 and the clamp mechanism 8 is released from the grip, and the plate material is released. 21 is conveyed to a predetermined place.

[0007]

However, in the above-mentioned conventional structure, since the plurality of punches 1 1a and 1b and the dies 3, 3a and 3b mounted on the punching portion 24 are arranged in a straight line, There is such a problem.

A punching portion 24 is provided on the right end portion 21a of the plate member 21.
When punching is performed by the punch 1a and the die 3a fixed to the left end of the punch 1a, a wide material passage port 5 corresponding to the width of the plate material 21 must be provided on the left side of the punch 1a and the die 3a. I won't.

When the left end portion 21b of the plate material 21 is punched, a wide material passage opening 5 corresponding to the width of the plate material 21 must be provided on the right side of the punch 1b and the die 3b. In the end, the total length of the punched portion 24 in the X direction needs to be about three times the width of the plate material 21 or more (L in FIG. 2), which makes it difficult to miniaturize the device. there were.

In view of the above problems, the present invention has an object to reduce the size of a plate material punching device by providing a work reversing mechanism.

[0011]

In order to solve the above-mentioned problems of the prior art, the plate material punching device of the present invention first processes half the area of the plate material which is the workpiece and then rotates the plate material horizontally. Then, the identification means such as a camera recognizes at least two reference holes provided in the plate material to perform the alignment before and after the rotation, and the work reversing mechanism portion for punching the remaining half area is provided. .

[0012]

Embodiments of the present invention will now be described in detail with reference to FIG.

FIG. 1 is a perspective view showing a plate material punching device of the present invention. In FIG. 1, members that are the same as or equivalent to the members described in FIG. 2 are given the same reference numerals, and detailed description thereof is omitted.

The plate material punching apparatus of the present invention is roughly composed of a punching section 24, a plate material conveying section 23 and a work reversing mechanism section 25.

The punching section 24 includes a plurality of punches 1, 1.
punch holder 2 for mounting a, 1b, 1c in a straight line, and punches 1, 1a for dies 3, 3a, 3b, 3c.
A die holder 4 for mounting a plurality of units corresponding to 1b and 1c is integrated, and a material passage port 5 is provided at the center of a front face 22 thereof.

A camera 9 for recognizing the positions of at least two reference holes 19a and 19b, one for each of the half and the other half of the plate 21, is provided at the center of the upper surface. It is configured by fixing the lens downward.

The plate material conveying section 23 is an X table 1 for moving the plate material 21 having the positioning plate 18 in the X direction.
7, the Y table 14 for moving in the Y direction, and further the Y table 17, the air pressure of the air cylinder 16 is used to move the pin 27 upward in the Z direction, so that the clamp 28 moves around the rotary shaft 26. And a clamp mechanism portion 15 that rotates in the direction of arrow B and sandwiches the material 21 supported by the material support portion 29.

The work reversing mechanism 25 fixes the vacuum pad 10 for sucking the plate material 21 upward to the tip of the hollow rotary shaft 30.

The vacuum pad 10 has a hollow rotary shaft 30.
Is connected to a vacuum pump via a tube (not shown), holds and fixes the plate material 21 by suction of the vacuum pump, and releases suction after rotating 180 degrees.

An up / down air cylinder 11 for moving up and down the vacuum pad 10 is provided in the machine frame 20, and a fixing rod 33 directly connected to the up / down air cylinder 11 is fixed to a support plate 32, and a rotary shaft is attached to the support plate 32. 30 is rotatably mounted.

A pulley 31 is fixed to the upper part of the rotary shaft 30,
Since the rotary shaft 30 is rotated by being driven by the air motor 13 by being connected to the air motor 13 via the belt 12, the vacuum pad 10 fixed to the rotary shaft 30 can be rotated while adsorbing the plate material 21. In this way, the plate member 21 can rotate about 180 degrees.

Next, the operation of the plate material punching device of the present invention will be described.

As shown in FIG. 1, first, the X table 17
When a corner of the material 21 is abutted against the positioning plate 18 provided above and positioned, a manual switch (not shown) is turned on, the air cylinder 16 operates as described above, and the pin 27
And the clamp 28 rotates about the rotation shaft 26 in the direction of the arrow B, and the material 21 is sandwiched between the material support portion 29 and the clamper 28 and fixed.

Next, a reference hole 19a is formed at the right end of the plate member 21,
A reference hole 19b is drilled at the left end (symmetrical position) on the diagonal line passing through the center of the plate material 21 using an arbitrary punch and die attached to the punching section 24. Then, a predetermined hole is formed in the right half of the plate material 21 to which the reference hole 19a belongs.

After the processing is completed, the holding and fixing by the clamper 15 is automatically released, the vacuum pad 10 is lowered by the operation of the up / down air cylinder 11, the plate material 21 is sucked, and the plate material 21 is raised again.

After the completion of the ascending, the controller automatically releases the holding and fixing by the clamper 15 by the controller (not shown), the vacuum pad 10 descends by the operation of the up / down air cylinder 11, sucks the plate material 21, and then again. To rise.

After the lifting is completed, the plate material 2 is moved by the air motor 13.
1 rotates about 180 degrees, descends again by the operation of the vertical cylinder 11, and the clamper 15 holds and fixes the material 21 again.

Next, the reference holes 19a and 19b are sequentially moved right below the camera 9 to detect the deviation between the position before the rotation and the position of the reference hole after the rotation.
After the correction is made by moving the Y table 14 in each direction, the left half of the plate material 21 to which the reference hole 19b belongs is drilled.

In the above-mentioned embodiments, the camera is used as the means for confirming the plate material position, but the present invention is not limited to the camera, and the light emitting diode and the light receiving element are used as the engineering means. However, the same effect can be achieved.

[0030]

As described above, according to the present invention, the half area of the plate material is drilled, and then the remaining area is drilled by rotating 180 degrees, so that the material passage opening can be formed in a conventional manner. 1
It becomes possible to make it compact as / 2, and the effect of contributing to downsizing and weight saving of the entire device is remarkable.

[Brief description of drawings]

FIG. 1 is a perspective view showing a plate material punching device of the present invention.

FIG. 2 is a perspective view showing a conventional plate punching device.

[Explanation of symbols]

 1 Punch 1a Punch 1b Punch 1c Punch 2 Punch Holder 3 Die 3a Die 3b Die 3c Die 4 Die Holder 5 Material Passage Port 6 X Table 7 Y Table 8 Clamping Mechanism 9 Camera 10 Vacuum Pad 11 Vertical Air Cylinder 12 Belt 13 Air Motor 14 Y Table 15 Clamper 16 Air cylinder 17 X Table 18 Positioning plate 19a Reference hole 19b Reference hole 20 Machine frame 21 Plate material 21a Right end part 21b Left end part 22 Front face 23 Punching part 24 Plate material transfer part 25 Work inverting mechanism part 26 Rotating shaft 27 pin 28 Clamp 29 material support part 30 rotating shaft 31 pulley 32 support plate 33 fixed rod

Claims (4)

[Claims] 1. A plate material punching apparatus for moving a plate material to be punched using an X table and a Y table and performing a plurality of hole drilling operations at predetermined positions using a pair of punches and dies. After punching the half area, a means for rotating the plate material by 180 degrees, and by punching the half area remaining after rotating about 180 degrees, the material passage port of the punching part is halved to be compact. A plate material punching device. 2. The method according to claim 1, wherein the reference hole provided in the half area of the plate material and the reference hole provided in the remaining half area of the plate material are symmetrical with respect to the rotation center. Characteristic plate punching device. 3. The plate material punching device according to claim 1, wherein the rotating means comprises a vacuum pad for vacuum-adsorbing the plate material and a rotating means for rotating the vacuum pad. 4. The position error of the plate material before and after rotating the plate material by 180 degrees according to claim 1, wherein the X table and the Y table are moved by using an identification means such as a camera to correct the alignment. A plate punching device characterized in that