凸轮磨床及其加工工艺系统误差对凸轮磨削精度的影响和减小误差的措施  

Impact of cam grinder and processing system error on the cam grinding accuracy and measures for reducing the error

作　　者：吴克坚[1] 韩秋实[1] 彭宝营 

机构地区：[1]北京信息科技大学机电工程学院,北京100192 [2]中国机械科学研究院,北京100044

出　　处：《机械设计与制造》2011年第11期90-92,共3页Machinery Design & Manufacture

基　　金：北京市教委科技发展计划重点项目(KZ200711232016)

摘　　要：对已有的凸轮磨床进行分析,探讨凸轮加工误差的来源,对这些误差进行了分类,在磨削加工的加工误差中既有机床结构误差、,也有系统加工工艺误差,控制系统产生的误差等。着重研究了磨削加工中由于砂轮半径变化、X轴对刀误差、C轴对刀误差引起的凸轮轮廓偏差,还有通过建立几何模型,从数学角度说明了由此造成的影响,并对如何减小这类误差提供了解决措施,最后对凸轮与砂轮磨削时的弹性形变对凸轮加工精度地影响做了一定的分析。Firstty analyzed the existing cam grinder,investigated cam machining errors sources,which were classified including the error of machine tool structure and system technological error as well as the errors occurs in control system.Especially the cam profile error caused by radius change of grinding wheels,tool setting errors of X axis and C axis was discussed and the impact occurred was illustrated in terms of mathmatics through establishing geometric model.Afterwards,measures were provided for reducing the errors.Finally the essay analyzed the impact of elastic deformation when the cam is grinding with the grinding wheel on the cam processing accuracy.

关 键 词：凸轮磨削 误差 加工精度 补偿 

分 类 号：TH16[机械工程—机械制造及自动化] TP274[自动化与计算机技术—检测技术与自动化装置]