An Apparatus For Measuring Geometric Error of Index Table in Machine Tool Using Laser Interferometer And Method Thereof

摘要

The present invention using a laser interferometer for measuring the geometric errors of the index table which is mounted on the machine tool relates to the measuring apparatus and method, provided at the upper part of the index table and the index table and the rotation angle by rotating the same in the opposite direction, each calibration unit, the rotating optical system is installed on the upper portion of each of the calibration unit, the index table and spaced positioned and fixedly installed on a laser beam by the optical system and analyze the phase difference by the laser transceiver and the optical path difference of the laser received by the laser receiving portion for receiving the laser reflected from the optical geometry of the index table by is configured to include a calculation of measuring the error. ; According to the present invention as described above, the location and resolution of the linear primary drive shaft and a device for measuring the rotation angle error of the laser interferometer for measuring the rotational drive shaft there is an effect in combination with the precise measurement of the geometric errors of the index table and can be described by the world coordinate system to geometric errors of machine tools.