Transactions of Materials and Heat Treatment

Title：Stamping process analysis and composite die design for LED spotlight holder

Authors： Zhang Rihong Li Xiaomin Bai Zhenwei Yao Huaping

Unit： Zhongkai University of Agriculture and Engineering

KeyWords： spotlight holder composite die drawing and punching drilling side hole aluminum material

ClassificationCode：TG385

year,vol(issue):pagenumber：2022,47(2):172-175

Abstract：

According to the structure and size of LED spotlight holder, as well as the characteristics of aluminum raw materials, the processing technology of its parts was analyzed. In order to reduce the cost of raw materials, three sets of dies were designed, including blanking, drawing and punching, punching side groove and drilling side hole. Then, the rubber block was installed on the punch of blanking die, and the cut aluminum plate was pushed away from the punch by the elastic force of rubber block, which solved the problem of aluminum plate sticking on the punch. Furthermore, the aluminum plate was drawn and then punched, which solved the problem that the flanged hole was easy to burst when the bottom hole was punched first and then flanged, and the nut and thread mechanism was installed on the punch to make the punch rotate when moving laterally, so that the side punch was of the function for drilling. Finally, the two processes of punching side groove and drilling side hole were put in the same set of die to save the processing station. Thus, compared with the use of aluminum rod turning to process the spotlight holder, the cost of the new process was significantly reduced.

Funds：

2020年广东省本科高校教学质量与教学改革工程建设项目（粤教高函［2020］19号）

作者简介：张日红（1980-），男，博士，副教授，E-mail：zrh-neu@163.com ；通信作者：李小敏（1981-），男，博士，副教授，E-mail：lixiaomin@zhku.edu.cn

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