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为解决复杂结构摇臂铆接过程中销轴增粗变形技术问题,优化设计了一种分瓣式凹模结构冲铆精密成形模具,并通过铆接力的计算分析,优化设计了销轴结构。借助Deform-3D工具对摇臂销轴冲铆过程进行仿真分析。最后,通过对比试验验证了模具结构的合理性。本方案有效地控制了摇臂销轴在冲铆时镦粗变形量,满足摇臂铆接后销轴直径工艺设计要求,解决了摇臂铆接质量问题。
In order to solve the technical problems of thickening and deforming the pin shaft during the riveting process of the rocker arm with complex structure, a precision riveting precision forming die with split die type die structure was designed and the pin structure was optimized through the calculation and analysis of the riveting force. The Deform-3D tool is used to simulate the rivet pin-rivet process. Finally, the rationality of the die structure is verified through comparative experiments. The program effectively controls the upsetting deformation of the rocker pin during punching riveting, meets the design requirements of the pin diameter after the riveting of the rocker arm, and solves the problem of the riveting quality of the rocker arm.