Stamping forming process and trimming and shaping composite mould for automobile roof cover

A technology for automobile top cover and stamping forming, which is applied to forming tools, manufacturing tools, vehicle parts, etc., can solve the problems of inaccurate positioning, poor stability and production consistency, and increased number of mold processes, so as to reduce the cost of mold tooling, Avoid the effect of scrap that cannot fall off and the number of mold processes

Active Publication Date: 2016-04-20
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
View PDF8 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is that the shaping of the junction between the tail and the top is carried out in the process after drawing and trimming, which leads to an increase in the stamping work content of the subsequent mold, which easily leads to an increase in the number of mold processes, which in turn leads to an increase in tooling costs and post-production costs.
[0009] On the other hand, after drawing and forming the billet used to produce the automobile roof in the prior art scheme, the work content of peripheral trimmi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Stamping forming process and trimming and shaping composite mould for automobile roof cover
  • Stamping forming process and trimming and shaping composite mould for automobile roof cover
  • Stamping forming process and trimming and shaping composite mould for automobile roof cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] refer to figure 1, the trimming and shaping compound mold that is used for automobile roof of the present embodiment comprises upper mold base, lower mold base 11, trimming punch 12, trimming die 21, shaping insert 4, top pressing core 31, top Nitrogen spring 32, etc., wherein the trimming punch 12 is installed on the lower die base 11, the trimming die 21, the shaping insert 4, the top pressing core 31 are installed on the upper die base, and the top nitrogen spring 32 is installed on the upper die base Between the top pressing core 31. For clarity, figure 1 In the middle, the upper mold base is omitted. The top pressing core 31 is used for pressing the top of the car roof during stamping, and the top nitrogen spring 32 acts on the top pressing core 31 to provide top pressing force.

[0044] refer to figure 2 , the tail pressing core 51 is used for the tail pressing of the car roof, and the tail nitrogen spring 52 acts on the tail pressing core 51 to provide the t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a stamping forming process for an automobile roof cover. The stamping forming process comprises a drawing forming procedure and a trimming and shaping procedure in sequence; in the drawing forming procedure, a positive R corner is formed at a connecting position of the top part and the tail part of the automobile roof cover; and in the trimming and shaping procedure, the positive R corner is shaped so as to enable the positive R corner to take the shape of a step with a negative R corner. The invention further provides a trimming and shaping composite mould. With the adoption of the stamping forming process and the trimming and shaping composite mould, the risk of cracking at the connecting position of the top part and the tail part of the automobile roof cover in the stamping forming process can be reduced.

Description

technical field [0001] The invention relates to the stamping field of automobile cover parts, in particular to a stamping forming process of an automobile top cover and a trimming and shaping compound mold for the automobile top cover. Background technique [0002] The stamping process design of automobile panels is to determine the sequence of drawing, trimming, punching, flanging, shaping and other processes and the specific content of each process according to the product structure shape and technical requirements. Generally speaking, when formulating a production process plan, the fewer stamping processes, the higher the positioning accuracy of parts, and the lower the development cost of mold tooling in the early stage and the lower production cost in the later stage. However, the reduction in the number of stamping processes will inevitably increase the content of single-sequence work. Therefore, when the process plan is determined, it also puts forward higher requirem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21D53/88B21D35/00B21D37/10
CPCB21D35/002B21D37/10B21D53/88
Inventor 陈世涛张作洋何鹏申郭奔王海玲卢桥
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap