摘要
给出数控机床几何误差模型,用三次多项式对数控机床几何误差进行拟合,设计出与误差模型相适应的测量方案。对一台五轴数控加工中心(TTTRR)进行误差参数辨识,验证了本文辨识方法的可行性及测量方案的合理性;对某一试件进行误差补偿,显著提高了机床的加工精度。
This paper gives the geometric error model and designs the measurement program adapted to the error model using a cubic to fit with the polynomial geometric errors, error parameter identification has been done on a five-axis CNC machining centers (TITRR) , verifies the feasibility and the rationality of the error parameter identification and measurement solutions; at the end of the article, maehining accuracy of CNC machine tools significantly been improved by a error compensation experiment.
出处
《中国农机化学报》
北大核心
2013年第6期283-285,300,共4页
Journal of Chinese Agricultural Mechanization
基金
甘肃省科技支撑计划资助项目(1204GKCA038)
关键词
五轴数控机床
几何误差
参数辨识
误差补偿
5-axis CNC machine tool
geometric error
parameter Identification
error compensation