JPH08229893A - Workpiece punching device - Google Patents

Abstract

PURPOSE: To improve the quality and yield of products by transferring a workpiece into which the positioning pins of a guide positioning table are inserted, by a front claw from a front table to a metal mold to punch the workpiece, and then transferring the workpiece to a rear table by a rear claw. CONSTITUTION: A front table 5 flush with an adjacent guide positioning table 6 places a part of a workpiece 8 into which the positioning pins 7 of the guide positioning table 6 are inserted. The workpiece 8 is held by a front claw 3 controlled in the feed pitch by a front actuator 1, and the positioning pins 7 are lowered to transfer the workpiece 8 into a position where the punching guide pin 13 of an upper metal mold 12 is inserted in a guide hole 11. Parts insert holes are then bored in the workpiece 8 by a punch 14 built in the upper metal mold 12, and plated lead is cut. At this time, the workpiece 8 is transferred by the front claw 3, then transferred by a rear claw 4 controlled in the feed pitch by a rear actuator 2 and finally delivered behind a rear table 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically and accurately punching a hole for inserting a part of a work, a part of the outer shape of a product and a plating lead.

[0002]

2. Description of the Related Art Conventionally, a worker inserts one work into a punching guide pin incorporated in a die fixed to a punching press for making a hole for inserting a work part and cutting a plated lead. After punching with a press, remove it from the punching guide pin, feed it by one pitch for the next drilling, insert it again into the punching guide pin, and repeat the above-mentioned operation in order to perform punching. There is a problem that the number of man-hours is increased and the yield is reduced due to variations in the thickness and feed pitch, feed direction, or mistaken insertion into the punching guide pin. The work in the present invention refers to a sheet on which several products are continuously placed. This is a film such as polyester, polyimide, etc. with copper foil stuck on one or both sides.The work is cut into a predetermined size after making holes for inserting parts, cutting part of the product outline and plating leads, etc. It becomes a fusible circuit board.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of variation in quality, increase in man-hours, and decrease in yield, and automation can improve quality, improve productivity, and the like. It is intended.

[0004]

According to the present invention, there is a front table on which a work is placed, which is adjacent to a guide positioning table provided with positioning pins, and which is punched adjacent to the guide positioning table. A pressing press is arranged, and an upper die provided in the press has a punching guide pin and a punching punch, and the work inserted in the positioning pin is pinched and moved on the front actuator to be fixed to the punching press. A transfer device consisting of a front claw that can transfer the work to the lower die surface and a rear claw that can move the work to the rear table adjacent to the press after the completion of punching and after the completion of punching, and the initial feed and feed pitch ,
A punching device for a work, comprising a front claw position, a rear claw position, and means for controlling the number of punches.

The apparatus of the present invention will be specifically described below. The guide positioning table is provided with a positioning pin into which a guide hole for the work can be inserted. By using this positioning pin, the work can be transferred and the punching guide pin can be inserted correctly. The number of positioning pins is not particularly limited, but two is sufficient. Further, the shape and the like of the positioning pin are not particularly limited as long as the guide hole of the work can be accurately inserted, and the pin can be smoothly removed by a cylinder operation or the like after the inserted work is pinched by the front nail. After the front jaws pinch the work, the positioning pin descends from the guide positioning table surface by a cylinder operation or the like. As a result, the work sandwiched by the front claws can be transferred smoothly on the table surface. Until the punching of one work is completed, the positioning pin remains lowered and is raised by the cylinder operation etc. before setting the next work.

The guide positioning table and the front table on which a part of the work is placed are arranged adjacent to each other.
This is because the position of the positioning pin changes depending on the type of product, so that the guide positioning table can be replaced easily. Further, it is preferable that the guide positioning table and the front table have the same height because the work can be smoothly transferred. The front claw has a built-in detection mechanism that detects misalignment and feed error with a micro switch, etc., and at the same time the front claw clamps the work inserted in the positioning pin, it detects the misalignment and the misalignment is eliminated. For example, it has a function of moving one pitch on the front actuator and transferring it to a predetermined position on the lower mold surface fixed to the punching press. If there is a positional shift, the entire device stops. After the work is transferred to the specified position on the lower die surface by the front claw, the front claw returns to its original position, the work is pinched again, the positional deviation is detected by the same operation as above, and the work is moved by one pitch and this operation is performed. Are sequentially repeated. The front claw is not particularly limited in shape, size, etc. as long as it can sandwich the work and can transfer it. A front claw that can be moved back and forth is arranged on the front actuator, and the front actuator works in conjunction with a mechanism that controls the initial feed, feed pitch, front claw position, rear claw position, and the number of punches. Etc. are controlled.

The die provided in the punching press is composed of an upper die and a lower die, and the upper die has a punching guide pin,
It has a punch for punching. When the work clamped by the front claws is placed at a predetermined position on the lower mold surface, the press operates and presses down, so that the punching guide pin descends from the upper mold, and the work guide hole is inserted. It is inserted so that the punching position can be set correctly. Before the punching guide pin is inserted into the guide hole,
It becomes free and returns to the original position. The number of punching guide pins is not particularly limited, but two is sufficient.
Further, the shape of the punching guide pin is not particularly limited as long as it can be smoothly inserted into the guide hole of the work and can be smoothly removed after the punching is completed.
Further, a punching punch is used to form a hole for inserting a component in a necessary portion of the work, and a part of the outer shape of the product and a plating lead are cut.

Similar to the front claw, the rear claw has a built-in detection mechanism capable of detecting misalignment and feed error, such as a micro switch. After punching for several pitches, the work is put together with the front claw. In addition to the function of instantly detecting pinching, misalignment, and feed error, it also has the function of moving on the rear actuator and transferring the work by one pitch to the rear table adjacent to the press. A rear claw that can be moved back and forth is arranged on the rear actuator, and this rear actuator works in conjunction with a mechanism that controls the initial feed, feed pitch, front claw position, rear claw position, and the number of punches to control the feed pitch, etc. To control. The front claw and the rear claw are interlocked and move back and forth on the front and rear actuators. For a few pitches after the initial feeding, the work is sandwiched by the front jaw only and then transferred, and then the work is sandwiched by the front and rear jaws. Finally pays out the work behind the rear table. The means for controlling the initial feed, the feed pitch, the front claw position, the rear claw position, and the number of times of punching required for the punching operation of the work may be any control mechanism capable of previously inputting these data, and is not particularly limited. By this control means, the punching operation can be continuously repeated, and the yield can be improved and the quality variation can be reduced. The rear table is for placing the punched work, and the end of the rear table is tilted downward so that the front table,
If one punched work piece is dropped on the punching press and a conveyor arranged at the bottom of the rear table so that it can be transferred to the bottom of the front table, the process can be more rationalized.

An embodiment of the present invention will be described below more specifically with reference to the drawings. The present invention is not limited to these examples. FIG. 1 is a perspective view of an embodiment of a work punching device, and FIG. 2 is a perspective view showing a state in which the work is inserted into a positioning pin and the work is sandwiched by front claws. FIG. 3 is a sectional view of the die showing a state where the work is placed at a predetermined position of the lower die, and FIG. 4 is a sectional view of the die showing the state of the work after punching. The front table 5 and the guide positioning table 6 having the same height are adjacent to each other, and the front table 5 mounts a part of the work 8 inserted into the two positioning pins 7 of the guide positioning table 6. To do. After the front pawl 3 sandwiches the work 8 inserted in the positioning pin 7, the positioning pin 7 is lowered from the surface of the guide positioning table 6 by the cylinder, and the front pawl 3 moves on the front actuator 1 by one pitch. By doing so, the work 8 sandwiched by the front claws 3 is transferred to a predetermined position where the punching guide pin 13 incorporated in the upper die 12 fixed to the punching press is inserted. The positioning pin 7 remains lowered until the punching of one work 8 is completed.

The front actuator 1 has a front claw 3 having a built-in micro switch capable of detecting positional deviation and feed error.
Are arranged and move back and forth on the front actuator 1. Further, the front actuator 1 controls the feed pitch of the front pawl 3. The upper die 12 above the lower die 10 fixed to the punching press has two punching guide pins 13 incorporated therein. After the work 8 is transferred to a predetermined position on the surface of the lower die 10 and placed there, the press descends and the guide pin 13 is inserted into the guide hole 11 of the work 8 so that it can be set in the correct position before punching. . After setting, the front claw 3 is in a state where the work 8 is not sandwiched. With the punching guide pin 13 inserted in the guide hole 11 of the work 8, the punching punch 14 incorporated in the upper die 12 makes a hole for inserting a component at a predetermined position of the work 8 at the same time. Cut the plating lead. Front nail 3
For a few pitches after the initial feeding with the
And then transfer the work piece together with the front claw 3 and the rear claw 4.
When the work 8 can no longer be clamped by the front pawl 3, the work 8 is pinched by only the rear pawl 4, and the rear pawl 4 finally ejects the work 8 to the rear of the rear table 9. Positional deviations and feeding errors are immediately detected by a micro switch built in the front and rear pawls 3 and 4 and capable of detecting positional deviations and feeding errors, and if there is no abnormality, one pitch is transferred. After transferring by one pitch, the front claw 3 and the rear claw 4 return to the original positions of the front actuator 1 and the rear actuator 2.

The rear actuator 2 is provided with a movable rear claw 4 having a built-in micro switch capable of detecting positional deviation and feeding error. The rear claw 4 moves back and forth on the rear actuator 2 and after punching is completed, the rear claw 4 sandwiches the work together with the front claw 3 and at the same time, misalignment and feeding error are caused by the incorporated micro switch. To detect. The rear actuator 2 controls the feed pitch of the rear pawl 4 similarly to the front actuator 1. Although not shown in the drawing, the means for controlling the initial feed, the feed pitch, the front claw position, the rear claw position, and the number of times of punching necessary for the punching operation of the work are control mechanisms capable of inputting these data in advance. Good. The punching operation can be continuously repeated by this control means.

Although not shown in the drawing, the rear table 9
By sloping the end of the lower part and arranging a conveyor under the front table 5, punching press and rear table 9, one punched work 8 is dropped and transferred to the lower part of the front table 3. The process can be rationalized.

[0013]

According to the present invention, the quality and product yield are improved, and the number of steps can be reduced and the working efficiency can be greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a work punching device.

FIG. 2 is a perspective view showing a state in which a work is inserted into a positioning pin and the work is sandwiched by front claws.

FIG. 3 is a cross-sectional view of a die showing a state where a work is placed at a predetermined position of a lower die.

FIG. 4 is a sectional view of a die showing a state of a work after punching.

[Explanation of symbols]

 1 Front Actuator 2 Rear Actuator 3 Front Claw 4 Rear Claw 5 Front Table 6 Guide Positioning Table 7 Positioning Pin 8 Workpiece 9 Rear Table 10 Lower Die 11 Guide Hole 12 Upper Die 13 Punching Guide Pin 14 Punch

Claims (2)

[Claims] 1. A front table on which a work is placed is adjacent to a guide positioning table provided with positioning pins, and a punching press is disposed adjacent to the guide positioning table. The upper die provided in has a punching guide pin and a punching punch,
After inserting the work inserted in the positioning pin, it can move on the front actuator and transfer the work to the lower die surface fixed to the punching press. After moving the front claw and punching, after moving on the rear actuator and adjoining the press. A punching device for a work, comprising: a transfer device having a rear claw capable of transferring the work to the table; and means for controlling an initial feed, a feed pitch, a front claw position, a rear claw position and the number of punches. 2. A punching device for a work, wherein a conveyor for transferring the work after the punching is provided below the front table, the punching press and the rear table according to claim 1.