高技术通讯2011，Vol.21Issue(10)：1084-1089,6.DOI:10.3772/j.issn.1002-0470.2011.10.014
五轴数控机床的空间误差建模与解耦补偿分析
Volumetric error modeling and decoupled error compensation analysis of five-axis CNC machine tools
摘要
Abstract
Aiming at the problem that the position and orientation error compensation of a five-axis machine tool is more complicated because of the complex coupled effects between the joint variables and the position/orientation of the tools and work-piece, the paper gives a volumetric error model by using the coordinate transformation method on the basis of analyzing the kinematics equations of five-axis machine tools and multi-axis machine tools' error kinematics principle. Based on the rigid body kinematics with small error assumption and the analysis of error motions and the compensation motions, a new volumetric error compensation model and a compensation algorithm are presented by decoupling the error compensation motions, thus the position and orientation compensation values of the joint variables can be obtained finally with the model. A new post-processing module was created by the compensation algorithm , and it was tested by experiment with the five-axis machine tools and the experimental results show that the machining accuracy can be improved effectively when using it.关键词
五轴数控机床/空间误差/误差补偿模型/解耦Key words
five-axis CNC machine tools/ volumetric errors/ error compensation model/ decouple引用本文复制引用
要小鹏,殷国富,方辉,程锦,李光明..五轴数控机床的空间误差建模与解耦补偿分析[J].高技术通讯,2011,21(10):1084-1089,6.基金项目
国家科技重大专项(2010ZX04015-011),国家自然科学基金(50705084)和四川省科技支撑计划(2010GZ0051)资助项目. （2010ZX04015-011）
