Transactions of Materials and Heat Treatment

Title：Design of flanging die with switching mechanism for the automobile roof panel

Authors： Guan Yipeng Xiang Xiaohan

Unit： Liuzhou Vocational & Techinical College

KeyWords： automobile roof panel skylight flanging die die structure switching mechanism

ClassificationCode：TG385.2

year,vol(issue):pagenumber：2014,39(12):93-96

Abstract：

By the analysis on the product characteristic, stamping process of an automobile roof panel was introduced and the structure of flanging die with quick switching mechanism for roof panel skylight was designed. Through pneumatic quick switching mechanism, the horizontal motion of the cylinder plunger was transferred into the vertical motion of the flanging punch. Elastic elements (nitrogen springs，coil springs) were installed on both upper and lower parts of the switching component. Design points of the process of the switching mechanism, compression conditions of the elastic elements, the working stroke and other parts were discussed to form automobile roof panel with or without skylight on the same die. Automobile roof panels with and without skylight were produced by one die. The results show that the switching mechanism is reliable and feasible，which guarantees the flanging quality, shortens the development cycle and improves the production efficiency.

Funds：

2012年度广西高校科研项目“汽车类特大型厚板成形模开发实践”（201203YB196）；2013年广西高校科研项目“基于带天窗顶盖的先进汽车模具技术研究”（2013LX229）；2014年度广西高校科研项目“基于CATIA V6的后背门外板先进汽车模具技术研究”（YB2014499）

关意鹏（1978-），男，硕士，讲师

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