基于ICP的磁流变抛光方形工件精准定位方法  

Precise localization of square workpiece in magnetorheological polishing based on ICP algorithm

作　　者：周涛 黄文[1] 陈华[1] 张云飞[1] 郑永成[1] 樊炜[1] ZHOU Tao;HUANG Wen;CHEN Hua;ZHANG Yunfei;ZHENG Yongcheng;FAN Wei(Institute of Mechanical Manufacturing Technology,China Academy of Engieering Physics,Mianyang 621900,CHN)

机构地区：[1]中国工程物理研究院机械制造工艺研究所

出　　处：《制造技术与机床》2019年第7期43-47,共5页Manufacturing Technology & Machine Tool

基　　金：国家“高档数控机床与基础制造装备”科技重大专项“巨型激光装置光学元件超精密制造系统”示范工程(2017ZX04022001);科学挑战计划(JCKY2016212A506-0502&0504);国家自然科学基金(61605182);中物院超精密加工技术重点实验室资助

摘　　要：为解决磁流变抛光中的定位关键问题,提高磁流变抛光的工件装夹效率与定位精度,结合迭代最近点(ICP)算法,提出适用于方形平面工件的三面测点位姿精确定位方法。通过仿真计算,验证了该方法的定位误差小于0.5μm,具有理论可行性;通过位姿求解及定位误差验证实验,验证了该方法在实际工况下的Z向定位误差小于10μm,具有实际应用可行性。In order to solve the key problem of localization in magnetorheological polishing to improve the workpiece clamping efficiency and positioning accuracy of magnetorheological polishing, a three-sided measuring point accurate positioning method for square plane workpiece is proposed combined with the iterative closes point (ICP) algorithm.The simulation results show that the positioning error of the proposed method is less than 0.5μm, which is theoretically feasible.The Z -direction positioning error of the method under actual working conditions is less than 10μm, which has feasibility of practical application.

关 键 词：磁流变抛光 工件定位 ICP 

分 类 号：TH161.24[机械工程—机械制造及自动化]