Transactions of Materials and Heat Treatment

Title：Design of multiposition progressive die for fixed bracket

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ClassificationCode：TG386

year,vol(issue):pagenumber：2019,44(8):158-161

Abstract：

According to the technical requirements and forming difficulties of automobile fixed bracket, the doublerow layout was designed, and the asymmetrical part was designed by symmetrical layout. Therefore, the utilization of materials was improved, and the deviation caused by lateral force was prevented during the bending process. Then, the process bending edge in the middle carrier was designed to increase the rigidity of strip, the sizing process was designed to reduce the springback, and the compound station of bending and ribbing was designed to make the process compact. Furthermore, the multi-station progressive die for the fixed bracket was designed by thermal structure, the feeding direction was determined by the guide plate, and the feeding distance was determined by the pilots. Finally, a misfeed sensing device was set to give an indication to cut off the power and protect the die and equipment when feeding errors. For the hole in the bending edge, the overhang wedge mechanism was designed to punch the side holes. The production result shows that the multiposition progressive die for the fixed bracket has a compact structure and reasonable process design to meet the requirements of batch production and dimensional accuracy of parts.

Funds：

山东省高校科研计划项目（J18KB013）

作者简介：赵国霞（1980-），女，硕士，讲师 E-mail：sdzyxyzgx@163.com

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