JPH0221147Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a die setting device in a press machine.

(Prior art) Conventionally, in the case of press processing machines, the method of using a standardized die set plate has become popular in order to facilitate the attachment and detachment of molds in the press section, and the die set plate is generally A rectangularly framed drop hole is often drilled in the die set plate section to take out the punched product after the punching operation is completed. However, if these pit holes are made in the plate surface, the supporting force of the plate against press pressure is significantly weakened, causing problems such as destruction of the plate and deterioration of product quality.

Therefore, in order to compensate for this, measures such as covering the hole with a lid-like object are taken during operations other than normal punching operations, but the reinforcing effect is insufficient and the plate cannot withstand large plate pressure.

Therefore, it is difficult to target large molds, and it is not possible to satisfy the accuracy for work that requires precision such as bending work and drawing work, and the die setting method is virtually impossible to achieve. The reality is that it is impossible to perform these tasks.

(Problems to be solved by the present invention) Therefore, the present invention makes technical improvements to the strength of the drop-hole portion of the punched product of the die set plate.
The die setting method can be applied to relatively large molds,
Furthermore, it has been devised so that bending work, drawing work, etc., which were previously impossible, can be performed in a single press machine.

[Structure of the device] The structure of the device will be explained below based on the embodiment shown in the drawings. As shown in FIG. One of the upper die sets 4 is an upper die set for fixing the lower mold K2 to be set on the bolster 2.

Then, the vertical frame plate 4a of the lower die set 4
and horizontal frame plate 4b, several fitting grooves 6, 6... are formed in opposing positions on the inner surface of either the vertical frame plate 4a or the horizontal frame plate 4b. Provided for. Then, the head end of the fitting groove 6 is placed flush with the upper surface of the plate of the lower die set, and the lower end is grounded on the upper surface of the bolster, that is, the mold support plate 7 supports the mold from the bottom surface during pressing.
can be inserted and removed freely.

Next, a plate support block 8a is disposed approximately at the center of the lower surface of the horizontal frame plate 4b to support the plate, with its head touching the bottom surface of the horizontal frame plate 4b and its bottom touching the upper surface of the bolster. Mounting rod 8b with mounting means 8c such as magnets arranged at the part
Attach it to one end of the die set removably.

In addition, the above-mentioned vertical frame plate 4a or horizontal frame plate 4
Fitting grooves 6, 6 provided on the inner surface of either one of b
For example, a substantially U-shaped fitting piece may be attached to the inner surface.

[Effect of the invention] To use the die setting device of the invention based on the above configuration, first, when performing punching work, the mold support plate 7 and the plate support 8 of the device are
is removed, the mold K is attached to the die set, and punching is performed in accordance with the vertical direction of the press ram, and the punched piece is dropped into the drop hole 5.

Next, in order to proceed to the bending work, drawing work, step work, etc., first, the mold support plates 7 are inserted into the fitting grooves 6, 6, provided in the drop holes 5 of the lower die set 4, and, The plate support block 8a is removably attached to the substantially central portion of the lower surface of the horizontal frame plate 4b using a mounting rod 8b having attachment means 8c such as magnets at the left and right ends. Then, when performing bending work, etc.
No matter how large the load pressure is during pressing, the bottom surface of the mold is supported by the mold support plate 7 whose head end is flush with the upper surface of the plate of the lower die set and whose lower end is grounded on the upper surface of the bolster, and is supported by the horizontal frame plate. 4b
is supported by a plate support block 8a whose head end is in contact with the lower surface of the plate and whose lower end is in contact with the upper surface of the bolster. Therefore, the support of the mold becomes accurate and strong,
In addition, deflection of the plate due to press pressure is completely suppressed, eliminating distortion. Since it can be attached and detached freely, it is easy to return to punching work at any time.

As described above, the present invention can withstand press pressure even if a relatively large mold is used, and the conventional die setting method, which could only be applied to small molds, can be applied to large molds. In addition, since the mold is firmly fixed, the precision of punching, etc. can be improved, and the quality of the product can be improved.

In addition, since bending work, drawing work, step work, step pressing work, etc. can be performed accurately, these works that could not be done with the conventional die setting method can be handled with a single press, making it a versatile and versatile press. Work becomes possible.

Furthermore, since sufficient precision can be maintained even with a thin mold, the mold can be made lightweight and economically inexpensive, making it a very practical idea.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a perspective view of the lower die set portion of the invention, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the same, and Fig. 4 is a side view of the entire device. It is. 1... Ram, 2... Bolster, 3... Upper die set,
4...Lower die set, 4a...Vertical frame plate, 4b...
Horizontal frame plate, 5...drop hole, 6...fitting groove, 7...
Mold support plate 7, 8a...Plate support block, 8
b...Mounting rod, 8c...Attachment means.

Claims (1)

[Claims for Utility Model Registration] In a die set for a press machine having a drop hole 5 for a punched product surrounded by a vertical frame plate 4a and a horizontal frame plate 4b in the lower die set part, the vertical frame plate 4a or the horizontal frame plate 4b are provided with several fitting grooves 6, 6..., and the head end of the fitting groove 6 is flush with the upper surface of the plate of the lower die set, and the lower end is grounded on the upper surface of the bolster to support the bottom surface of the mold. The mold support plates 7 are removably inserted, and the plate support blocks 8a, which support the plates with their heads touching the bottom surface of the horizontal frame plate 4b and their bottoms touching the upper surfaces of the bolsters, are connected to magnets, etc. at the left and right ends. A die set device for a press machine, characterized in that the die set is detachably attached to one end of the die set by a mounting rod 8b provided with a mounting means 8c.