Transactions of Materials and Heat Treatment

Title：Design of progressive die for a kind of supporting plate

Authors： Li Jing Tang Peng Fu Sijing

Unit： Chengdu Technological University

KeyWords： supporting plate layout progressive die stamping process bending

ClassificationCode：TG386

year,vol(issue):pagenumber：2020,45(12):151-154

Abstract：

Based on the process analysis of structure, material thickness, material and other factors for supporting plate, a progressive die design scheme was determined. Then, the stamping process performance of supporting plate was analyzed, and according to its forming characteristics and technical requirements, the layout scheme and the overall structure design of progressive die were introduced. Furthermore, the main body of workpiece was used as the main carrier, the layout method was adopted that two pairs of rows were arranged in the middle carrier, and the eleven stations including blanking, bending and empty stations were designed which the material utilization rate was 534%. Then the pre-bending process was added to reduce bending springback and ensure bending accuracy. In addition, the die was designed as the structure where the parts were pushed down and double guide, and the punch adopted the quick-change structure and the die adopted the segmented split structure. When the material was fed, the guide plate was used to guide, the side blades were roughly fixed, and the guide pins were precisely fixed. Finally, the structure of double-row holding nail, double-row guide pin, built-in guide pin and guide bushing were designed to ensure the feeding and guiding accuracy. After analysis, the results show that the multi-station progressive die structure of supporting plate is stable and reliable, and the process design is reasonable, which ensures the dimensional accuracy of parts and meets the requirements of production batch.

Funds：

四川省教育厅计划项目（17ZA0011）

李静（1979-），女，硕士，副教授 E-mail：63310102@qqcom

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