弧面凸轮的非等径廓面加工误差控制  

Error Control on Unequal Diameter Machining of Arc Surface Cam

作　　者：胡东方[1,2] 郭建伟 Hu Dongfang;Guo Jianwei(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China;Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing of Henan Province,Luoyang 471003,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]机械装备先进制造河南省协同创新中心,河南洛阳471003

出　　处：《系统仿真学报》2019年第4期727-732,共6页Journal of System Simulation

基　　金：国家自然科学基金(51605145);河南省教育厅重大科技攻关项目(13A520232);河南科技大学高级别项目培育基金(2011CX016)

摘　　要：对加工误差进行有效控制是弧面凸轮非等径廓面加工获得高精度和高效率的重要手段。根据空间啮合原理和旋转变换张量法,对刀具与凸轮的接触线进行分析,计算出加工过程中的刀位偏移量和偏移方向,进而建立了非等径加工弧面凸轮的实际工作廓面方程。运用微分几何原理推导出弧面凸轮廓面法向误差的计算方法,进行了非等径加工理论加工误差与仿真实验的对比,结果验证了该新的刀位控制技术对误差补偿的有效性。The effective control for the machining error is an important means for obtaining high precision and high efficiency of the unequal diameter profile machining of the arc surface cam. According to the space meshing principle and the rotation transformation tensor method, the contact line between the tool and the cam is analyzed;the cutter position offset and direction in the machining process are calculated. The actual working profile of the unequal diameter machining cam equation is established. Calculation method of normal error of globoid cam profile is deduced by the principle of differential geometry. The comparison between the machining error of the unequal diameter machining and the simulation experiment is carried out. The results verify the effectiveness of the new tool position control technique in error compensation.

关 键 词：弧面凸轮 非等径加工 误差补偿 法向误差 误差控制 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]