Transactions of Materials and Heat Treatment

Title：Design of progressive die for pulley frame

Authors： Wen Jianping Zeng Zhuanbao Yuan Wenzhao

Unit： Hunan Financial & Industrial Vocational-technical College

KeyWords： pulley frame progressive die less waste bending die structure forming side edge

ClassificationCode：TG386

year,vol(issue):pagenumber：2019,44(9):118-121

Abstract：

In order to reduce the production cost of pulley frame, according to the shape, sizes, material and batch production requirements of parts, the process of pulley frame parts was analyzed. Absorbing the advantages of traditional process plan, a less waste blanking process plan was formulated to improve the utilization rate of materials. The side lapping edge was designed as the forming side edge, and the paratactic forming side edge was applied to ensure the expansion length of parts, and the middle lapping edge was not designed. The first step is trimming, punching the middle round hole and punching two long holes. The second step is punching the gap. The third step is to ensure that the strength of die is designed to be vacant. The fourth step is cutting and bending, and the inverted structure is applied. The strip material was positioned by using the guide plate to ensure the straight movement of the feeding direction and the step distances of the forming side edge and the guide pin. Finally, the structure characteristics and working principle of die were analyzed, and the key points of die design and manufacture were introduced. The die structure is simple, the work flow is smooth and stable, and the production efficiency is high.

Funds：

湖南省教育科学“十二五”规划资助基金（XJK012 CZJ052）

文建平（1962-），男，硕士，教授 E-mail：wjp071162@126.com

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