Finish machining process for cold-punching special-shaped square holes

A special-shaped and cold-punching technology, applied in the field of cold-punched special-shaped square hole finishing technology, can solve problems such as machining difficulties and tolerances, and achieve the effect of overcoming machining difficulties and ensuring square hole tolerances.

Inactive Publication Date: 2014-06-11
ZHUANGHE TIANCHENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Beneficial effects: ensure square hole tolerance, smoothness, overcome processing difficulties

Method used

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Embodiment Construction

[0006] A cold stamping special-shaped square hole finishing process, characterized in that the square hole is roughly machined, and 0.5mm is left on each side of the material. The square hole is used to punch the tire on the punching machine, and the first punching is 0.3mm, and the second fine punching is 0.2mm. mm, processed into finished products.

[0007] The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

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PUM

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Abstract

The invention discloses a finish machining process for cold-punching a special-shaped square hole. The square hole is roughly machined, an amount of 0.5mm is left on each side of a material, a square hole-punching punch die is used for first punching off 0.3mm and then finish-punching off 0.2mm on a punch, and thereby a finished product is machined.

Description

technical field [0001] The invention relates to a finishing process for cold stamping special-shaped square holes. Background technique [0002] At present, the precision of square hole processing technology is low, the tolerance of square hole is large, and the finish is not enough. Contents of the invention [0003] The technical scheme that the present invention adopts for realizing the above object is: [0004] A cold stamping special-shaped square hole finishing process, characterized in that the square hole is roughly machined, and 0.5mm is left on each side of the material. The square hole is used to punch the tire on the punching machine, and the first punching is 0.3mm, and the second fine punching is 0.2mm. mm, processed into finished products. [0005] Beneficial effects: ensure the tolerance and smoothness of the square hole, and overcome the problem of difficult processing. Detailed ways [0006] A cold stamping special-shaped square hole finishing proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D28/24
Inventor 黄淑彦
Owner ZHUANGHE TIANCHENG MACHINERY
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