基于PMAC数控机床定位精度控制研究  

Study on Positioning Accuracy Control for NC Machine Based on PMAC

作　　者：王占领[1] 

机构地区：[1]陕西理工学院机械工程学院,陕西汉中723003

出　　处：《机床与液压》2014年第22期55-56,66,共3页Machine Tool & Hydraulics

基　　金：陕西省工业攻关项目基金资助项目(2009K07-09)

摘　　要：数控机床定位精度和重复定位精度直接影响数控机床的加工精度。通过分析影响数控机床定位精度的原因,利用系统螺距误差补偿方法对数控机床进给系统的定位精度进行补偿。试验结果表明:该误差补偿策略显著提高了系统的位置精度和运动精度,为提高机床的加工精度奠定了基础。NC machine tool machining accuracy is directly affected by NC machine tool positioning accuracy and repetitive posi-tioning accuracy. Based on the analysis of effect factors for NC machine tool positioning accuracy,positioning accuracy of feed system was compensated by the method of pitch error compensation. The results show that the NC machine tool positioning accuracy and move-ment accuracy are significantly increased by the error compensation,and this method lays a foundation for improvement of machining accuracy.

关 键 词：数控机床 定位精度 螺距误差补偿 

分 类 号：TG71[金属学及工艺—刀具与模具]