JPH10156593A - Die set device for press machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a die set being able to correspond to the production of many kinds in small quantities by making each die to be regulated with its position against the die to compose the process with plural numbers of divided or drawn dies or assembling them, and making the distance from the final machining position of one process to the first machining position of the next process into integral number times by a feeding pitch of a material. SOLUTION: Dies 9 are arranged in a pitch P1, applying places of a product strip are machined at positions of m1, m2 and the applying places of the product strip are machined at the positions n1, n2. The distance from m2 to n1 is required to be made in integral number times of a feeding pitch of the strip in order to obtain the same pattern product. In order to obtain a similar product of different dimension, the dies 9 are arranged in P2. In this time, the distance from r2 to S1 is required in the integral number times of the feeding pitch. By regulating the position of S1 against r2 of the die set 8 with a screw mechanism, the maintenance and inspection are made easily and the production is made able to correspond.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a progressive die set for performing press working for obtaining a lead frame, a connector and the like.

[0002]

2. Description of the Related Art Conventionally, a mold having a large number of punches has been used to obtain a product as shown in FIG. Maintenance and repair were not easy due to the complex mold.

[0003]

SUMMARY OF THE INVENTION By simplifying the mold structure, it is easy to perform maintenance and repair of the mold, and the mold structure, that is, the die set for coping with high-mix low-volume production. To provide.

[0004]

In order to solve the above-mentioned problems, the present invention divides a conventional mold or extracts a part from the conventional mold to create a plurality of simple molds. do it,
Each step is constituted by these dies, and the positions of these dies can be adjusted in each step.

[0005]

FIG. 1 to FIG. 4 show an embodiment of the present invention. Frame 2 is crown 3, column 4, bed 5
On the left side surface of the press machine 1 formed from the above, a material feeding device 6 for feeding the material W from left to right of the press machine 1 is provided. The lower die 9A is fixed to the lower die plate 8A of the die set 8 shown in FIG. 2, and the upper die 9B is fixed to the upper die plate 8B. The guide post 36 that stands upright on the lower die plate 8A has the upper die 9A. The die set 8 is formed by fitting with the guide bushes 37 provided on the plate 8B.

On the crown 3, a rail 18 having a rectangular cross section is provided.
A and a rail 18B having a trapezoidal cross section are fixed in parallel, and a moving block 17 that moves in the feed direction of the material W to be fed and in the opposite direction is mounted on the rails 18A and 18B. On the lower surface of the moving block 17, a pressure cylinder 11 having a jaw 11A that is in contact with the lower surface of the crown 3 is fixed. A piston 13 is fitted into the cylinder 12, a wrist pin 15 is inserted into a distal end 13A of the piston rod, the wrist pin 15 is held by a wrist pin support 14, and the wrist pin support 14 is a holder 16
And is fixed to the upper die plate 8B via the.

A bed 5 is provided with a pit 5A for processing scraps and the like, and a bolster 7 having a pit 7A for processing scraps and the like is fixed on the bed 5. Each of the pits 5A and 7A has a long hole shape in the left-right direction in accordance with the set position of the die set 8, so that the position of the die set can be adjusted.

On the front side of the bolster 7, a positioning pin moving device 40 for setting the position of the die set 8 is provided for each processing stage. On the front side of the crown 3, a pressure cylinder moving device 10 for setting the position of the pressure cylinder 11 in accordance with the position of the lower die plate 8A is provided for each processing stage.

In FIG. 1, a pressure cylinder moving device 10
Is composed of a position adjusting device 20 and a driving means 21, a position setting device 25, and a clamp device 30 (FIG. 1).

FIG. 3 shows the position adjusting device 20. The adjusting screw 23 is held by a block 24, and is configured to rotate via a gear box 22 when the handle 21 is turned. Further, the female screw block 19 is provided with the adjusting screw 2.
3, the pressing cylinder 11 moves forward and backward in the feed direction of the material W via the moving block 17 when the adjusting screw 23 rotates.

The position setting device 25 is fixedly mounted on the female screw block 19 provided on the moving block 17 and moves, and a display 26 for displaying the moving amount of the pressurizing cylinder 11 moved by the position adjusting device 20; And a scale 27 for the measurement.

The clamp device 30 includes a T-shaped groove 3A provided on the lower surface of the crown 3 and a T-shaped groove 3A at the tip of a piston rod 32 penetrating the jaw 11A of the pressure cylinder 11. , And a hydraulic clamper 33 composed of a cylinder 31 in contact with the lower surface of the pressurizing cylinder 11 is used.

The positioning pin moving device 40 for the die set 8
Is composed of a position adjusting device 50, a driving unit 41, and a position setting device 55.

The position adjusting device 50 includes a guide block 45 fixed on the bolster 7 and a handle (driving means) 41.
Is rotated by a manual operation, and is provided between the block 44 fixed to the guide block 45 and the gear box 42, and is rotated by the gear box 42 through the adjustment screw 43, and is guided by the guide block 45 to mesh with the adjustment screw 43. It has a female screw portion 47A and is composed of a guide plate 47 on which the positioning pins 46, 46 are erected. The positioning pins 46, 46 are moved in the feeding direction of the fed material W and in the opposite direction. Note that the handle 41 is detachable from the gear box 42.

The positioning plate 4 which engages with the positioning pins 46 and 46 and makes the contact surface with the positioning pin 46 flat on the lower die plate 8A of the die set 8.
8A and a positioning plate 48B having a V-shaped contact surface with the positioning pin 46 are fixedly provided.

The position setting device 55 includes a guide plate 47.
Of the position adjusting device 5
A display 56 for displaying the amount of movement of the positioning pins 46, 46 moved by 0, and a scale 5 for measuring the amount of movement.
7 is comprised.

In accordance with the change of the feed length of the material W, when the die set 8 in which the mold 9 is provided is loaded onto the bolster 7 by a loading / unloading means (not shown), the positioning pins of the die set 8 are previously set. The position of the positioning pins 46 is set by the moving device 40 at the set position of the die set 8 corresponding to the feed length of the material W. At this time, the holder 16
Is at the upper limit of the stroke of the pressurizing cylinder 11 or at a set position set in advance when loading and unloading the die set 8.

At this time, the clamp device 30 (hydraulic clamper 33) is in an unclamped state, the moving block 17 is mounted on rails 18A and 18B, and the lower surface of the crown 3 and the jaw of the pressure cylinder 11 are held. A gap corresponding to the stroke length of the piston rod 32 of the clamp device 30 is formed on the upper surface of 11A.

After setting the positions of the positioning pins 46, 46, the die set 8 in which the mold 9 is provided is carried into the bolster 7 from the rear surface of the press machine 1 by carrying-in / out means.
After the loading of the die set 8 onto the bolster 7 is completed, the lower die plate 8 is fastened by fastening means (not shown) such as bolts and nuts.
A is fixed.

The pressure cylinder 11 is moved by the pressure cylinder moving device 10 in accordance with the position of the upper die plate 8B, and when the position adjustment with the die set 8 is completed, the lower surface of the crown 3 is pressed by the clamp device 30. The upper surface of the jaw portion 11A of the pressure cylinder 11 is abutted and fixed. Thus, the clamp device 30 is provided between the moving block 17 fixed on the pressurizing cylinder 11 and the rails 18A and 18B.
A gap corresponding to the stroke length of the piston rod 32 of the (hydraulic clamper 33) is generated. The pressurizing cylinder 11 is lowered by hydraulic pressure, and the upper die plate 8B is fastened to the holder 16 by fastening means (bolts 16A in this embodiment).

The position adjustment between the die set 8 and the pressure cylinder may be performed in the following procedure. The pressing cylinder 11 is moved by the pressing cylinder moving device 10 in accordance with the position of the upper die plate 8B, and the holder 16 and the upper die plate 8B are fastened by fastening means (bolts 16A in this embodiment). After lowering the pressurizing cylinder 11 by hydraulic pressure and fastening the upper die plate 8B to the holder 16, the clamping device 30
The lower surface of the crown 3 and the jaw 1 of the pressure cylinder 11
The upper surface of 1A is contacted and fixed.

In the present invention, the clamp device is a hydraulic clamper 33, but the pressurizing cylinder 11 may be fixed by another fastening means such as a bolt and a nut.

When the press operation is started, the upper die plate 8B fixed to the holder 16 is guided by the guide bushes 37, 37 to be fitted and the guide posts 36, 36 erected on the lower die plate 8A. The material W fed from the material feeding device 6 is pressed by a mold 9 provided on each stage.

In the present embodiment, each pressurizing cylinder 11 is provided with the pressurizing cylinder moving device 10 and the positioning pin moving device 40 of the die set 8 so as to be adjusted individually, but the adjusting screws 23 (43) are used. May be connected or integrally adjusted simultaneously.

Although the driving means 21 and 41 for adjusting the pressure cylinder moving device 10 and the positioning pin moving device 40 are manually operated, the handles 21 and 41 may be replaced with servo motors for automatic adjustment. In this case, the setting of the movement position of the pressure cylinder 11 and the positioning pins 46, 46 can be automatically controlled.

Further, the positioning pin holes are formed at the positions of the positioning pins of the lower die plate 8A set in advance on the bolster 7, and the positions of the positioning pin holes formed on the bolster 7 are made common. Therefore, even when another die plate having a different pitch between stages is used in accordance with a change in the feed length of the material W, only the pressing cylinder moving device 10 can be used.

When the die set 8 is to be loaded onto the bolster 7 from the front side of the press machine 1 by a loading / unloading means (not shown), the positioning pin moving device 40 is moved to the bolster 7 or the rear surface of the bed 5. May be provided.

In the above description, the pressurizing cylinder 11 is provided in each step for the purpose of changing the pressing force or making the pressurizing timing variable. It is not necessary to divide the lifting drive mechanism for each step.

Here, a processing procedure when processing the material W using the die set according to the present invention will be described.
FIG. 5 shows a state in which the molds 9 are arranged at a pitch P1, and FIG. 6 shows an example of a processed product obtained by the present invention. For example, at the positions of m1 and m2 in FIG.
1 and m2 are processed, and n1 and n2 in FIG. 6 are processed at the positions of n1 and n2 in FIG. In this case, the feed pitch of the material W is 1, and the distance from m2 to n1 in FIG. 5 needs to be an integral multiple of 1 to obtain a product of the same pattern.

In FIG. 5, the material W is fed at a feed pitch of 1 from m2 to n1, but there is no punch or die between m2 and n1 so that normal processing is not hindered.

Next, in order to obtain similar products having different dimensions with the same press machine, as shown in FIG.
Deploy at a pitch of 2. At this time, the distance from r2 to S1 must be an integral multiple of the feed pitch 2 for the above-described reason. Here, in order to make the die set versatile, it is necessary to adjust the position of S1 with respect to r2.

In the present invention, the position of the die set 8 and the mold 9 are adjusted together with the moving block 17 by the screw mechanism as described above.

[0033]

According to the present invention, by simplifying the mold structure, it is easy to perform maintenance and repair of the mold, and the mold structure, that is, the die set for coping with high-mix low-volume production. Can be provided.

[Brief description of the drawings]

FIG. 1 is an overall front view of a press machine according to an embodiment of the present invention.

FIG. 2 is a side sectional view of the press machine.

FIG. 3 is a top view of a main part of the same pressurizing cylinder moving device.

FIG. 4 is a top view of a main part of a die plate positioning pin moving device.

FIG. 5 is an explanatory diagram showing a relationship between feed pitches.

FIG. 6 shows an example of a product.

[Explanation of symbols]

1 is a press machine, 2 is a frame, 3 is a crown, 3A is a T-shaped groove, 4 is a column, 5 is a bed, 5A is a pit, 6 is a material feeder, 7 is a bolster, 7A is a pit, 8 is a die. Set, 8A is lower die plate, 8B is upper die plate, 9 is mold, 9A is lower die, 9B is upper die, 1
0 is a pressure cylinder moving device, 11 is a pressure cylinder, 11
A is a jaw, 12 is a cylinder, 13 is a piston, 13A
Is a tip, 14 is a wrist pin support, 15 is a wrist pin, 16 is a holder, 16A is a bolt (fastening means), 17
Is a moving block, 18A and 18B are rails, 19 is a female screw block, 20 is a position adjusting device, 21 is a handle (drive means), 22 is a gear box, 23 is an adjusting screw, 24
Is a block, 25 is a position setting device, 26 is a display, 27
Is a scale, 30 is a clamping device, 31 is a cylinder, 3
2 is a piston rod, 32A is a jaw, 33 is a hydraulic clamper, 36 is a guide post, 37 is a guide bush,
40 is a positioning pin moving device, 41 is a handle (drive means), 42 is a gear box, 43 is an adjusting screw, 44 is a block, 45 is a guide block, 46 is a positioning pin,
47 is a guide plate, 47A is a female screw part, 48A, 4
8B is a positioning plate, 50 is a position adjusting device, 55 is a position setting device, 56 is a display, 57 is a scale, and W is a material.

Claims (1)

[Claims] 1. Each step is constituted by a plurality of molds or a combination of these molds in a state of being divided or partly extracted, and the positions of these molds can be adjusted in each step. A die setting apparatus for a press machine, wherein a distance from a final processing position in one process to a first processing position in the next process is set to an integral multiple of a material feed pitch.