孔位置度精确补偿加工技术  

Accurate Compensation Processing Technology of Hole Position

作　　者：袁祥祥 姚辉 李昂 梁津鹤 谢辉 YUAN Xiangxiang;YAO Hui;LI Ang;LIANG Jinhe;XIE Hui(Tianjin Long March Launch Vehicle Manufacturing Co.,Ltd.,Tianjin 300462,China)

机构地区：[1]天津航天长征火箭制造有限公司

出　　处：《机械工程师》2020年第2期79-81,共3页Mechanical Engineer

摘　　要：介绍已加工圆周分布孔的位置度补偿加工技术。通过Leica AT901-B型激光跟踪仪对工件进行在线检测,得到圆周分布孔的实际坐标和位置度误差。按最大实体要求(MMR)补偿孔位置度公差,重新判定孔位置度误差是否合格。利用被测点理论坐标与实际坐标的差值fx、fy,经过测量坐标系与加工坐标系间的坐标变换,对孔位置度进行补偿加工,使孔的位置度误差得到精确控制。This paper introduces the position degree compensation processing technology for processed circumferentiallydistributed holes. The Leica AT901-B laser tracker is used to detect the workpiece online, and the actual coordinates andposition error of the circumferentially distributed holes are obtained. According to the maximum material requirement(MMR) to compensate the hole position tolerance, this paper re-determines whether the hole position tolerance isacceptable. The differencefx,fyof the measured point’s theoretical coordinates and actual coordinates is used to compensate the hole position degree through coordinate transformation between the measurement coordinate system andthe processing coordinate system, so that the hole position degree error can be accurately controlled.

关 键 词：位置度 最大实体要求 坐标变换 补偿加工 

分 类 号：TH162[机械工程—机械制造及自动化]