中空凸轮轴校直工艺优化开发  

Optimization and Development of Straightening Technology for Hollow Camshaft

作　　者：彭俊成 Peng Juncheng(Dongfeng Motor Co.,LTD.Dongfeng Nissan Engine Branch Company,Guangzhou 510800)

机构地区：[1]东风汽车有限公司东风日产发动机分公司,广州510800

出　　处：《汽车工艺与材料》2024年第10期28-34,共7页Automobile Technology & Material

摘　　要：基于中空凸轮轴的物理特性,对校直工艺及其参数进行重新设计优化,校直下压量重新核算和优化设计,外扩校直支点增加下压量解决回弹问题。通过大量实际数据拟合校直曲线,优化中空凸轮轴校直的理论基础,进行修正系数权重优化和校直次数管控。同时对前工序进行过程控制,控制中空凸轮轴的校直质量和废率,实现精益制造和提升中空凸轮轴生产过程的品控等级。Based on the physical characteristics of the hollow camshaft,the straightening process and parameters are redesigned and optimized,the straightening downward pressure is re-calculated and optimized,and the straightening fulcrum is expanded to increase the downward pressure to solve the difficulty of rebound.The theoretical basis of hollow camshaft straightening is optimized by fitting the straightening curve,optimizing the weight of correction coefficient and controlling the number of straightening times through a large number of real straightening data.At the same time,the process control is made to the previous process,controlling the straightening quality and waste rate of the hollow camshaft,which achieves lean manufacturing and improve the quality control level of the hollow camshaft production process.

关 键 词：中空凸轮轴 校直 弹塑性变形 拟合曲线 下压量 

分 类 号：TG3[金属学及工艺—金属压力加工]