3-PRS并联机构空间动态精度检测与误差补偿的研究

通过论述数控机床动态精度的检测要素,基于五轴动态精度检测的方法,阐述根据不同机械特性、机械磨损造成的检测误差,以及试切样件的点位分布,分析以往的动态精度检测在并联机床应用上的不足,以3-PRS并联机构为例,探讨一种适用于并联机床并能准确检测出机床空间位置的动态精度的方法,减小了由于检测盲区导致的动态精度检测误差,并经过误差补偿,展示了深入推广并联机构动态精度检测技术的巨大价值和应用前景.

The research of space dynamic precision measure and compensation for 3-PRS parallel mechanism

This text discusses the examination main factor of the NC machine tool dynamic state accuracy,according to the 5-axis dynamic precision examination,elaborates examination error caused by the different mechanical characteristic and wear,the points of test part,analyzing the shortages of the former dynamic state accuracy examination on application of parallel machine,with 3-PRS parallel mechanism for example,inquiries into a kind of method which is applicable to parallel mechanism machine and also can accurately examine the dynamic state accuracy of the machine tool space position,reduces the dynamic precision examination error caused by examining blind zone,through error compensation,displays huge value and apply foreground of thorough expansion of dynamic precision examination technology.