摘要
普通随动磨床(设备A)在磨削谐波凸轮时始终存在加工误差较大的问题,严重影响谐波减速器的传动性能。本文依据磨削成形理论,对误差形成机理进行分析,结果表明:凸轮轮廓线的等距线作为砂轮中心的运动轨迹进行磨削加工是不合理的。根据砂轮与凸轮理论廓线的包络关系,对目前加工方法引起的周向和径向干涉量进行分析计算,其中径向最大干涉量出现在极角46°处,干涉量达到0.013mm。针对该问题根据砂轮对凸轮廓线的包络关系,推导出砂轮中心的运功轨迹计算公式。
Common servo grinder(equipment A)always has large machining error when grinding harmonic drive cam,which seriously affects the transmission performance of harmonic drive.Based on the theory of grinding and forming,this paper analyzes the error formation mechanism.The results show that it is unreasonable to use the equidistant line of the cam contour as the movement track of the center of the grinding wheel.According to the envelope relationship between the grinding wheel and the theoretical profile of the cam,the circumferential and radial interference caused by the current machining methods are analyzed and calculated.The maximum radial interference occurs at the polar angle of 46°,and the interference reaches 0.013mm.To solve this problem,according to the envelope relationship between the grinding wheel and the cam profile,the calculation formula of the power path of the grinding wheel center is deduced.
作者
谷甲甲
石立腾
唐江枫
GU Jia-Jia;SHI Li-Teng;TANG Jiang-Feng(Guangdong Provincial Key Laboratory of High Performance Servo System,Gree Electric Appliances,Inc.of Zhuhai,Zhuhai Guangdong519070,China)
出处
《机电产品开发与创新》
2022年第4期108-110,共3页
Development & Innovation of Machinery & Electrical Products
基金
广东省高性能伺服系统企业重点实验室开放基金资助项目(HPSKL2021KT03)。
关键词
谐波减速器
凸轮
加工误差
包络关系
Harmonic drive
Cam
Machining error
Envelope relationship
