基于三维步距规的数控机床误差辨识研究  

Research on Error Identification for CNC Machine Tools Based on Three Dimension-stop Gauge

作　　者：李斌[1] 丁明宇[1] 毛新勇[1] 

机构地区：[1]华中科技大学国家数控系统工程技术研究中心,武汉430074

出　　处：《中国机械工程》2008年第11期1261-1264,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助重点项目(50335020);国家863高技术研究发展计划资助项目(2002AA423260)

摘　　要：基于三轴数控机床的空间误差模型,使用三维步距规识别数控机床空间几何误差。运用三维体积位置精度测量的思想,分步测量得到数控机床在指定离散位置的误差。将各个误差元表示为各个运动轴位置的多项式函数,配合误差模型,可辨识出机床的全部21项几何误差。Based on error model, the three dimension-stop gauge was used to identify the space errors of CNC machine tools. The three dimensional volume position precision measurement method was adopted to measure the specified discrete position error of CNC machine tools by step. Considering every error elements to be as polynomial function of every moving axis＇ position, cooperating with the error model, then we can identify all the 21 geometric errors of CNC machine tools.

关 键 词：数控机床 三维步距规 误差测量 误差辨识 

分 类 号：TG806[金属学及工艺—公差测量技术]