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Upper punching head of metal punching die

A metal stamping and punching technology, applied in the field of stamping dies, can solve the problems of large force on the punch and damage of the punch, and achieve the effect of reducing the impact force

Inactive Publication Date: 2012-01-25
TIANJIN HUASHUN AUTO PARTS MFR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the mold needs a lot of pressure to stamp on the metal part, the edge of the metal part after punching is very sharp, and the punch is subjected to a large force, which is easy to cause damage to the punch

Method used

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  • Upper punching head of metal punching die
  • Upper punching head of metal punching die
  • Upper punching head of metal punching die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be further described below by embodiment.

[0012] attached by figure 1 And attached figure 2 It can be seen that the present invention includes a punch body 2, the top of the punch body 2 is provided with a clamping platform 1, the end faces of the punch body 2 and the clamping platform 1 are circular, and the diameter of the end face of the clamping platform 1 is larger than the end face of the punch body 2 diameter. A concave hole 3 is provided at the bottom of the punch body 2, so that the punching force surface of the punch body 2 is greatly reduced. The bottom edge of the clamping platform 1 is provided with an arc-shaped edge 4, so that the punch body 2 and the stamped metal piece are in flexible contact, and the sharp edge of the metal piece is avoided.

[0013] It should be noted that the embodiments described in the present invention are only preferred ways to realize the present invention, and changes that are only obvious and b...

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PUM

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Abstract

The invention discloses an upper punching head of a metal punching die. The upper punching head comprises a punching head body, wherein the top of the punching head body is provided with a clamping platform; the end faces of the punching head body and the clamping platform are circular; the diameter of the end face of the clamping platform is greater than that of the end face of the punching head body; the bottom of the punching head body is provided with a concave hole; and the bottom edge of the clamping platform is provided with an arc-shaped side. The invention has the advantages that: the bottom of the clamping platform is provided with the arc-shaped side, so that sharp edges on a punched metal piece are avoided; and meanwhile, the bottom of the punching head body is provided with the concave hole, so that the punching force of the punching head is reduced, and the punching head is protected.

Description

technical field [0001] The invention relates to a stamping die, in particular to an upper punch of the stamping die. Background technique [0002] Metal parts processing is usually completed by stamping dies. The punching of metal parts is done quickly and neatly by using the upper punch of the die. However, because the mold needs a lot of pressure to stamp on the metal parts, the edge of the metal parts after punching is very sharp, and the punch is subjected to a large force, which is easy to cause damage to the punch. Contents of the invention [0003] In order to solve the above problems, the present invention provides an upper punch of a metal stamping die, which can reduce the instantaneous punching force on the punch and reduce the sharpness of the edge of the metal part after punching. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] An upper punch of a metal stamping die, comprising a punch body, c...

Claims

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Application Information

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IPC IPC(8): B21D37/00
Inventor 刘勇刘兴全郭旭光余盛桃
Owner TIANJIN HUASHUN AUTO PARTS MFR GRP