锻压技术

LED射灯灯座冲压工艺分析与复合模具设计

英文标题：Stamping process analysis and composite die design for LED spotlight holder

作者：张日红李小敏白振伟姚华平

单位：仲恺农业工程学院

分类号：TG385

出版年,卷(期):页码：2022,47(2):172-175

摘要：

根据LED射灯灯座的结构和尺寸，以及铝质原材料的特性，对其零件的加工工艺进行了分析。为了降低原材料成本，设计了落料、拉深和冲孔、冲侧槽和钻侧孔3套模具，在落料模具的凸模上安装橡胶块，通过橡胶块弹力将切断后的铝板从凸模上推开，解决了铝板粘在凸模上的问题；将铝板拉深后再冲孔，解决了先冲底孔再翻边后翻边孔容易爆裂的问题；在冲头上安装螺母、螺纹机构，使冲头侧向移动时，同时产生旋转运动，使侧冲头具有钻孔的功能；将冲侧槽与钻侧孔两个工序放在同一套模具中，可以节省加工工位。与采用铝棒车削加工射灯灯座相比，新工艺的成本显著降低。

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.

基金项目：

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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