支承偏移的轴承套圈定位误差及补偿方法分析  

Analysis of Positioning Error and Compensation Method of Bearing Ring Based on Deformation of Load Cell

作　　者：段成龙 张明柱[1,2] 杜宏林 邱明 李治伟[1] DUAN Chenglong;ZHANG Mingzhu;DU Honglin;QIU Ming;LI Zhiwei(College of Mechatronics Engineering,Henan University of Science and Technology,Luoyang Henan 471003,China;Advanced Manufacturing of Mechanical Equipment Henan Collaborative Innovation Center,Luoyang Henan 471003,China;Luoyang Kaiyuan Intelligent Jingji Co.,Ltd.,Luoyang Henan 471000,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]机械装备先进制造河南省协同创新中心,河南洛阳471003 [3]洛阳开远智能精机有限公司,河南洛阳471000

出　　处：《机床与液压》2022年第24期9-13,共5页Machine Tool & Hydraulics

基　　金：山东省重点研发计划(2020CXGC011001);河南省重大科技专项(191110213300);拖拉机动力系统国家重点实验室开放课题(SKT2021005)。

摘　　要：提出一个关于测力传感器变形引起的定位误差补偿方法。针对磨削轴承套圈的电磁无心夹具,在前后两个支撑上分别安装测力传感器,当支撑径向定位轴承套圈时,测力传感器精确测量轴承套圈所受支撑力并发生相应偏移。通过分析无心磨削支撑与工件的位置关系和定位误差的变化规律,推导出测力传感器受力变形导致支撑发生偏移引起的定位误差的计算公式,并提出通过控制砂轮架进给的方法补偿定位误差。结果表明:测力传感器变形会影响套圈的加工精度,此方法能够补偿该定位误差。且通过对比补偿前后的磨削时间表明,此方法能提高轴承套圈外圆磨削效率。A compensation method for the positioning error caused by the deformation of the load cell was proposed.For the electromagnetic centerless clamp grinding bearing ring,the load cells were installed on the front and rear supports respectively.When supporting the radial positioning bearing ring,the load cell accurately measures the supporting force of the bearing ring and shifts accordingly.By analyzing the positional relationship between the centerless grinding support and the workpiece and the change law of the positioning error during the grinding process,the calculation formula of the positioning error caused by the offset of the support caused by the force deformation of the load cell was deduced,and it was proposed to control the grinding wheel carriage feeding to compensate the positioning error.The results show that the deformation of the load cell will affect the machining accuracy of the ring;this method can be used to compensate the positioning error.The comparison of the grinding time before and after compensation shows that the method can improve the cylindrical grinding efficiency of the bearing ring.

关 键 词：轴承套圈 定位误差 补偿方法 

分 类 号：TH161.24[机械工程—机械制造及自动化]