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A drawing die for automotive roof parts

A technology for drawing dies and automobile roof covers, which is applied in the field of automobile parts and molds, and can solve the problems of roughening, high scrap rate, dark cracks and other problems at the feeding place, reduce normal wear speed, improve hardness and smoothness, and prolong service life Effect

Inactive Publication Date: 2016-04-20
SHANGHAI ZHONGDA AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The upper dies of the drawing dies of the existing automobile roof parts all use double-action presses, which put forward high requirements for the manufacture of the dies, often resulting in complex manufacturing processes, long manufacturing cycles, and high requirements for the equipment used. , the maintenance is cumbersome, and the interchangeability of the equipment used is poor
On the other hand, the R corner and other material feeding places are prone to roughening, cracking, and dark cracking, and the scrap rate is high

Method used

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  • A drawing die for automotive roof parts

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Experimental program
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Effect test

Embodiment

[0016] Such as figure 1 As shown, a drawing die for an automobile roof part includes three parts: a lower die assembly, a binder plate, and an upper die assembly, and the binder plate is located between the lower die assembly and the upper die assembly.

[0017] The lower mold assembly includes a lower mold base 1 and a lower mold core 3 arranged on the lower mold base 1, a guide plate guide column and an ejector pin, the lower mold core 3 is arranged above the lower mold base 1, and the lower mold core 3 Drawing punch with top cover;

[0018] The upper mold assembly includes an upper mold base 4 and an upper mold core 5 and a guide plate guide sleeve arranged on the upper mold base 4. The upper mold core 5 is arranged below the upper mold base 4, and the upper mold core 5 is provided with a top Galayan die.

[0019] The binder includes a binder body 2, a binder balance pad 7 and a push rod pad 6, the push rod pad 6 is arranged between the binder body 2 and the push rod, and...

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PUM

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Abstract

The invention relates to an automobile roof drawing die. The drawing die comprises a lower die assembly, a pressure plate and an upper die assembly. The pressure plate is arranged between the lower die assembly and the upper die assembly. The upper die assembly comprises an upper die base, an upper die core and a guide plate guide bush, wherein the upper die core and the guide plate guide bush are arranged on the upper die base; the upper die core is arranged below the upper die base, and is provided with a roof drawing female die; the lower die assembly comprises a lower die base, a lower die core, a guide plate guide post and an ejector pin, wherein the lower die core, the guide plate guide post and the ejector pin are arranged on the lower die base; the lower die core is arranged below the lower die base, the lower die core is provided with a roof drawing male die, and the guide plate guide post extends into the guide plate guide bush; and the pressure plate comprises a pressure plate body, a pressure plate balanced cushion block and an ejector pin cushion block, the ejector pin cushion block is arranged between the pressure plate body and the ejector pin, and the pressure plate balanced cushion block is arranged between the pressure plate body and the upper die base. Compared with the prior art, the die disclosed by the invention has the advantage that in the drawing process, the rate of finished products of workpieces is improved because of uniform moving of parts.

Description

technical field [0001] The invention relates to a mold for an automobile part, in particular to a drawing mold for an automobile top cover part. Background technique [0002] The current automobile market is frequently updated, and the research and development cycle and market life of automobiles are getting shorter and shorter, which poses a severe challenge to the matching parts and molds. [0003] The upper dies of the drawing dies of the existing automobile roof parts all use double-action presses, which put forward high requirements for the manufacture of the dies, often resulting in complex manufacturing processes, long manufacturing cycles, and high requirements for the equipment used. , The maintenance is cumbersome, and the interchangeability of the equipment used is poor. On the other hand, the R corner and other material-feeding places are prone to roughening, cracking, and dark cracking, and the scrap rate is high. Contents of the invention [0004] The objec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B21D22/20
Inventor 李春明吴天宝沈玉林丛培民张平谢晓红徐丽莉
Owner SHANGHAI ZHONGDA AUTO PARTS