运用分步式矢量方法的立式数控加工中心误差分离的研究  

Analysis of Volumetric Position Errors Based on Body Diagonals Vector Measurement on Vertical Machine Tools

作　　者：范晋伟[1] 李伟[1] 李云[1] 蒙顺政[1] 雒驼[1] 罗建平[1] 

机构地区：[1]北京工业大学,北京100124

出　　处：《机械设计与制造》2013年第2期153-156,共4页Machinery Design & Manufacture

基　　金："高档数控机床与基础制造装备"科技重大专项(2009ZX04001-024);国家自然科学基金赞助项目(50775004);北京市教委资助项目(KM200110005003)

摘　　要：针对立式数控加工中心存在的几何结构误差和误差测量的方法较为复杂、补偿周期较长的问题,运用多体系统理论建立立式数控加工中心的数学运动误差模型,利用矢量对角测量方法对可测得的位置误差进行误差分离,并在此基础上基于C++开发了三轴数控机床刀具加工轨迹仿真模块,以便仿真实展现立式加工中心的加工路径,并加以对比,验证误差补偿效果。结果表明,方法数学模型精确,可以快速分离出三轴立式加工中心的21项位置误差,最终解决数控机床误差补偿的效率问题。The problems of NC machining center of vertical existing geometric structure error and error measuring method is relatively complex,and compensation cycle is longer,so based on the mathematics vertical movement error model in multi-body system theory in the numerical control processing center,it used the vector diagonal measurement method to measure position error to carry out error separation.On this basis,processing trajectory simulation module of three axis CNC machine tool based on C++ was developed,so as to show real machining center working path of vertical processing.The results show that this method is the accurate mathematical model,which is able to quickly separate 21 position error of three-axis vertical machining center,finally solving the problem of efficiency problem of numerical control machine tool error compensation.

关 键 词：误差补偿 多体理论 矢量方法 空间误差 

分 类 号：TH16[机械工程—机械制造及自动化] TG659[金属学及工艺—金属切削加工及机床]