五轴立式精密机床RTCP跟随误差检测优化及补偿  

Optimization and compensation of RTCP following error detection for five-axis vertical precision machine tools

作　　者：刘贺强 张胤 肖博 戴玉红 魏宁 LIU Heqiang;ZHANG Yin;XIAO Bo;DAI Yuhong;WEI Ning(Beijing Precision Machinery&Engineering Research Co.,Ltd.,Beijing 101312,CHN)

机构地区：[1]北京工研精机股份有限公司,北京101312

出　　处：《制造技术与机床》2022年第12期134-138,共5页Manufacturing Technology & Machine Tool

摘　　要：基于μ1000/5ST-400V五轴立式精密机床,研究了RTCP跟随误差检测优化及补偿问题。首先,建立了位置误差数学模型,基于齐次变换方式,将旋转坐标转变为机械坐标。其次,通过优化算法,将位置误差转变为空间误差。控制系统更新迭代位置误差中的增益系数,提高了机床的空间误差的检测精确性,通过补偿,提高了机床的精度。最后试验采用S试件切削,切削的结果经过检验机构检测,证明了该方案的可行性。This article discusses the optimization and compensation of RTCP following error detection based on μ1000/5ST-400V five-axis vertical precision machine tool.A mathematical model of position error is established,under which sufficient conditions for transforming the rotational coordinates into mechanical coordinates are derived under the homogeneous transformation.By optimizing the algorithm,the position error is transformed into the spatial error.The control system updates the gain coefficient in the iterative position error,improves the detection accuracy of the spatial error of the machine tool,and improves the accuracy of the machine tool through compensation.Finally,the test adopts S specimen cutting,and the cutting results are tested,which proves the feasibility of the scheme.

关 键 词：五轴立式精密机床 RTCP 误差 优化 补偿 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]