KR200163008Y1 - Blanking device transfer press - Google Patents

Abstract

To set the center of die and punch always constant in the blanking device of the transfer press, in order to save setting time and improve setting accuracy and work stability;

A blanking device comprising an upper die mounted with a punch and a lower die mounted with a die; Always guide the ascending and descending of the upper and lower so that the center of the upper and lower

A blanking apparatus for a transfer press, comprising lifting means composed of a first post inserted into a post guide of a lower die, a second post supported by the lower die, and an elastic member for raising the lowered upper die simultaneously with the lowering of the upper die.

Description

Blanking device of transfer press

1 is a plan view of a blanking device of a transfer press according to the present invention.

2 is a cross-sectional view taken along the line II-II of FIG.

* Explanation of symbols for the main parts of the drawings

2: Pictograph 12: Lifting means

14: lower type 16: post guide

18: first post 20: elastic member

22: second post

[Industrial use]

The present invention relates to a transfer press, and more particularly, to a blanking apparatus of a transfer press that always matches the center of a punch and a die.

[Private Technology]

In general, in order to process a large amount of a part, transfer press processing is used, in which a raw material is gradually processed to complete a product at the last minute.

This transfer press possesses a plurality of forming dies and corresponding punches, and a blanking device is used to provide a material to be processed by the forming dies and punches. This blanking device also includes a pair of dies and punches for processing primary materials.

This blanking device mostly feeds the material onto a fixed die and then strikes the material with a punch. In other words, a shear force is applied to the workpiece located between the die and the blade and the punch blade to blank the workpiece into a predetermined shape.

At this time, the blade of the die to saddle the material, the position of the blade of the punch blanking the material, and the center of each should be set to match. However, in the prior art, there was no criterion for matching the center of the die and the punch during setting.

[Problems to Be Solved by the Invention]

Therefore, after the punch is inserted into the die, the die and the punch must be set while checking the gap between the die and the punch with an intuition, so that the setting time is long, and the accuracy and stability of the setting are deteriorated.

[Means to solve the problem]

Provided is a blanking device for a transfer press which can save setting time and improve setting accuracy and work stability when the die and punch centers of the blanking device of the transfer press are always set to be constant.

In order to realize this, the present invention provides a blanking apparatus including an upper die mounted with a punch and a lower die mounted with a die, and includes lifting means for guiding the lifting of the upper die so that the center of the upper die and the lower die always coincide with each other. It provides a blanking device of the transfer press, characterized in that made.

The elevating means of the upper die further comprises a first post inserted into the lower die simultaneously with the lowering of the upper die, a second post supported by the lower die, and an elastic member for raising the lowered upper die.

[Action]

In the blanking apparatus as described above, the first post of the elevating means guides the elevating of the upper die which is raised and lowered at the same time as the elevating of the punch, and coincides the center of the die and the punch during setting.

The second post of the elevating means fixes the position of the elastic member compressed by the lowered upper mold and determines the upper limit position of the upper mold raised by the elastic member.

As described above, the elastic member of the elevating means serves to elevate the lower upper die and the component members mounted thereon to the win position.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

EXAMPLE

1 is a plan view of a blanking apparatus for a transfer press according to the present invention, showing the upper die 2.

The upper die 2 includes a punch 4 for punching a raw material, a planar insertion hole 6 inserted into the inner diameter of the punch 4, a punch holder 8 for holding the punch 4, and the punch holder ( And fastening means 10 for fixing 8 to the upper die 2, and elevating means 12 for elevating the upper die 2.

The above-mentioned fastening means 10 can be made in various ways, but the embodiment illustrates a hexagonal bolt.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1, and includes an upper mold 2 including the above-described constituent members, a lifting means 12, and a lower mold 14. As shown in FIG.

The elevating means 12 is fixed to and mounted on the upper die 2 to the first post 18 for elevating the post guide 16 of the lower die 14, and to the lower die 14 and mounted to the upper die 2 The second post 22, which prevents the elastic member 20 and the elastic member 20 from being separated at the time of lowering, and determines the upper limit of the upper die 2 that is raised by the elastic member 20. It consists of.

The first post 18 described above is inserted into the upper die 2, fixed upwardly (in FIG. 2) by the punch holder 8, and installed to reciprocate the penetrated post guide 16. FIG. .

And the above-mentioned elastic member 20 is most preferably using a compression coil spring.

In addition, the lower end of the second post 22 is fixed to the stop groove 24 of the lower die 14, the upper end of the second post 22 of the second post 22 to stop the rise of the upper die (2) The head 26 is formed wider than the bottom.

As described above, the lower die 14 forms a post guide 16, a stop groove 24, and incorporates a die 28 for blanking the material by the lowering force of the punch 4. And the upper 30 and the lower portion 32 of the lower mold 14 is configured to be fastened to each other by a fastening means (not shown).

And a material guide 34 for guiding the material to be supplied is provided between the upper surface of the upper mold (2) and the lower mold (14).

In the blanking apparatus of the transfer press configured in this manner, when the primary material supplied to the material guide 34 is positioned on the die 28, a power source (not shown) exerts an impact force on the punch 4.

Due to this impact, the punch 4 primarily punches the raw material onto the die 28.

Immediately after this primary punching, a blanking force is applied to the material punched primarily by a planar (not shown) via the planar insertion opening 6 formed by the inner diameter of the punch 4 to blank the material.

In this manner, when the upper die 2 is lowered, the first post 18 is fixed to the punch holder 8, and thus the lower die 14 is lowered together with the upper die 2 via the post guide 16 of the lower die 14.

At the same time, the elastic member 20 fixed in position by the second post 22 is compressed by the lowering of the upper die 2.

Thereafter, the blanking is completed once, and the lowering force applied to the punch 4 is removed, and the upper die 2 is raised to its original position by the holding force of the elastic member 20.

The rising upper die 4 stops rising by the upper portion of the second post 22 and the lower portion coupled to the stop groove 24 of the lower die 14.

This series of operations continues to blank the continuously fed material.

[Effect of design]

By using lifting means for guiding the lifting of the upper die so that the center of the upper die and the lower die of the blanking apparatus always coincide, it is possible to save the die and the punch and the setting time, and to improve the accuracy of the setting and the stability of the work.

Claims (2)

A blanking device comprising an upper die on which a punch is mounted and a lower die on which a die is mounted, wherein the lifting means for guiding the lifting of the upper die 2 so that the center of the upper die 2 and the lower die 14 coincide with each other ( Blanking device of the transfer press, characterized in that consisting of 12). The lower post (14) of claim 1, wherein the lifting means (12) of the upper die (2) is inserted into the post guide (16) of the lower die (14) and the lower die (14) simultaneously with the lowering of the upper die (2). The blanking device of the transfer press, characterized in that it further comprises an elastic member (20) for raising the second post (22) supported on the lowered upper die (2).