三坐标测量机建立坐标系方法及应用

The Methods and Applications of Establishing Coordinate System with CMM

三坐标测量机属于高精密设备,目前应用在航天航空、机床制造及汽车行业,高精度的检测进一步提高了零件的加工质量。本文主要介绍了三坐标测量机的组成结构和测头系统。通过经典的“3-2-1”法完成典型零件建立坐标系的方法,利用测量实例对使用过程存在的测量误差进行分析,为后续提高三坐标测量零件精度提供参考价值。

CMM(coordinate measuring machine)is a high-precision equipment currently used in aerospace,machine tool manufacturing and automotive industries,where high precision detection further improves the processing quality of parts.This paper mainly introduces the composition and structure of the CMM and the method of establishing the coordinate system of typical parts by using the classical"3-2-1"method for the probe system.The measurement errors in the use process are analyzed by measurement examples,which provides reference value for subsequent researchers to improve the accuracy of the CMM parts.