关键词: 数字化, 机床误差模型, 通用性, 多体系统, 齐次坐标变换

Abstract:

The characteristics and its commonness of topological structure on machine tools were analyzed firstly herein,based on the multi-body system theory and the homogeneous coordinate transformation principle,the general expression on relative position-pose,movement and error among the machine components  were provided,and a general error analysis model for machine tool was established by programming.Through interactive input method,error modeling and analyzing on different machine tools would be achieved high-efficiently.The analysis results of error sensitivity and error regularity can be used as important
basis for tolerance design,stiffness control,installation and adjustment on
machine tools.

Key words: digitization, machine tool error model, generality, multi-body system, homogeneous coordinate transformation