基于螺旋理论的蜗杆砂轮磨齿机空间误差建模及解耦补偿  

Space Error of Worm Grinding Wheel Grinding Machine Based on Spiral Theory Modeling and Decoupling Compensation

作　　者：徐凯 陶小会 李彪 何坤 XU Kai;TAO Xiao-hui;Li Biao;HE Kun(National Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400044,China;Design and Control of Manufacturing Equipment Institution,Chongqing University of Industry and Commerce,Chongqing 400067,China)

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]重庆工商大学制造装备机构设计与控制重庆市重点实验室,重庆400067

出　　处：《装备制造技术》2019年第3期1-5,共5页Equipment Manufacturing Technology

基　　金：重庆市科技计划项目(No.cstc2017zdcy-zdzxX0005)~~

摘　　要：为提点高六轴数控蜗杆砂轮磨齿机的加工精度,提出了基于螺旋理论的空间误差建模及解耦补偿方法。首先,用旋量对机床移动运动副与转动运动副进行了描述,在此基础上进行了六轴蜗杆砂轮磨齿机运动学建模及考虑41项几何误差的空间误差建模;基于Paden-Kahan子问题,对空间误差模型进行逆解,求解了各轴的补偿运动量。To improve the machining accuracy of 6-axis worm wheel grinding machine, a method of modeling and decoupling compensation for volumetric error is proposed based on screw theory. Firstly, the translation and rotation of machine tools is described with screw theory. Then the kinematics model of 6-axis worm wheel grinding machine and the volumetric error model considering 41 geometric errors are established. Finally, the volumetric error model is inversely solved and the compensated motion of each axis is achieved based on Paden-Kahan sub-problems.

关 键 词：螺旋理论 空间误差 解耦 

分 类 号：TG596[金属学及工艺—金属切削加工及机床]