摘要
为了提高数控机床在线检测精度,研究机床各个轴的定位误差对数控机床在线检测精度的影响。针对数控机床误差补偿进行实验研究,采用激光干涉仪在数控机床上测量出各个轴的定位误差,将各个轴的定位误差依次进行补偿;并以Visual C++6. 0为工具,编写了三次样条曲线的算法程序,将测量的数据点拟合成一条曲线,达到可以预测机床任意点误差的效果;进行标准块检测实验。结果表明:在数控机床在线检测系统中实施误差补偿,效果较为明显,利用补偿软件可以实现对数控机床任意点进行补偿。
In order to improve the on-line inspection accuracy of Computer Numerical Control( CNC) machine tools,the influence of the positioning errors of each axis of machine tools on the on-line inspection accuracy of CNC machine tools is studied. Error compensation of CNC machine tool was carried out through experimental research. Firstly,a laser interferometer was used to measure the positioning errors of each axis on CNC machine tool. Then the positioning errors of each axis were compensated sequentially,and the algorithm of a cubic spline curve was written by taking Visual C++6. 0 as the development tool. The measured data points were fitted into a curve to achieve the error effect that could predict any point of the machine tool,and finally the standard block test was performed. The results show that the error compensation effect is obvious,and the compensation software can be used to compensate the machine tool at any point.
作者
方瑞
陈岳坪
谢梦敏
葛动元
FANG Rui;CHEN Yueping;XIE Mengmin;GE Dongyuan(School of Mechanical Engineering,Guangxi University of Science and Technology,Liuzhou Guangxi 545006,China)
出处
《机床与液压》
北大核心
2020年第3期70-73,共4页
Machine Tool & Hydraulics
基金
国家自然科学基金资助项目(51765007,51565006)
广西自然科学基金资助项目(2014GXNSFAA118337,2016GXNSFAA380111)
2016年广西高校高水平创新团队及卓越学者计划资助项目
广西自然科学基金资助项目(桂科自2018GXNSFAA050085)。
关键词
数控机床
定位误差
样条曲线
误差补偿
NC Machine tools
Positioning error
Spline curve
Error compensation
