渐开线齿轮测量中偏心的最小二乘估计法  

Least Square Estimation Method of Eccentric in Involute Gear Measurement

作　　者：张盼盼[1] 卢春霞[1] 李阳[1] 

机构地区：[1]西安工业大学

出　　处：《工具技术》2015年第4期102-104,共3页Tool Engineering

基　　金：陕西省教育厅2014服务地方专项(14JF010);西安工业大学精密测量与控制技术科研创新团队建设项目

摘　　要：针对测量渐开线齿轮时由于其几何中心和测量中心不重合带来的误差,讨论在齿轮测量中心上齿轮的自动测量原理,分析工件安装偏心对测量结果的影响,建立工件安装偏心的最小二乘估计算法和自动误差补偿模型。对同一工件在无安装偏心和有安装偏心两种情况下进行对比测量,得到一致结果,验证偏心估计算法和自动误差补偿算法的正确性。消除安装偏心误差带来的影响,降低无芯轴工件安装的难度。In view of the error caused by the geometry center of the gear and measurement center do not coincide,discusses the automatic measuring principle of the gear in Gear Measurement Center,analysis of the effect on measurement results for the workpiece is installed eccentrically,and establish least square estimation algorithm and automatic error compensation model of installation eccentric. The comparison measurements for the same workpiece under the two cases of installing concentrically and eccentrically are performed,the results are consistent and verify the correctness of the eccentric estimation algorithm and the automatic error compensation algorithm. The method eliminates the impact of installation eccentric error,and reduces the difficulty of installing the workpiece without mandrel.

关 键 词：齿轮测量中心 补偿 偏心误差 最小二乘估计 

分 类 号：TG80[金属学及工艺—公差测量技术]