在贯彻国际标准IS01708-83、国家标准GB4020-83《普通车床精度》时,第G15项由丝杠产生的螺距累积误差原采用长度规法进行检验,这种检验方法检出的误差分散度大,化费时间长,劳动强度大,检出的误差不能真实地反映机床的精度。为解决这个问题,我们改用电传感器和标准丝杠对照机床母丝杠进行比较测量。 In the implementation of international standards IS01708-83, the national standard GB4020-83 “ordinary lathe precision”, the first G15 by the lead screwscrew pitch cumulative error was originally used to test the length of the rule, this test method to detect large error dispersion , Spend a long time, labor-intensive, the error can not be detected accurately reflect the accuracy of machine tools. To solve this problem, we use electrical sensors and standard lead screw machine reference bar comparative measurement.