轴类零件自动检测仪综合误差研究  

Study on Synthesis Error Compensation for Shaft Parts Measuring Machine

作　　者：蔡善乐[1] 黄亚洲[2] 王彦杰[2] 张忠正[2] 

机构地区：[1]兰州理工大学机电工程学院,兰州市教授730050 [2]兰州理工大学

出　　处：《工具技术》2013年第9期59-62,共4页Tool Engineering

摘　　要：通过对一种轴类零件自动检测仪传动系统的分析,对影响该检测仪检测精度的误差元素进行识别。对相应的运动副进行基座标系和局部坐标系标定。基于小误差补偿假设,用齐次坐标变换的方法建立了各相应运动副坐标系间分别在理想情况(无误差)下和实际情况(有误差)下的变换矩阵。根据多体系统运动学理论,分析了误差运动和补偿运动间的关系,并建立了该检测仪的综合误差补偿量计算模型,为该检测仪的误差实时补偿提供了理论基础。The errors are identified by study on transmission system of the shaft parts measuring machine. Base coor- dinate system and reference coordinate system of the kinematic pairs are identified. Using Homogeneous Transformation Matrix （ HTM ） , each axis of the machine relative to each other and to the reference frame can be modeled with small error compensation assumption in the ideal case （no errors） and the actual situation （with error）. Based on the basic principles of multi - body system kinematics and the analysis of relationship between error motions and compensation motions, a mod- el of the machine for synthesis error compensation was established. The error compensation values of the joint variables can be obtained finally with the model.

关 键 词：轴类零件自动检测仪 齐次坐标变换 多体系统 误差建模 

分 类 号：TG80[金属学及工艺—公差测量技术] TH721[机械工程—仪器科学与技术]