机床的精度和工作能力在很大程度上决定于导轨的质量,因而导轨的平直与否有很重要的关系。测量导轨的平直度需要用像光学平直仪这种精密仪器来测量。我厂机修车间老工人周谟辉同志,为了使机床能修复到原有精度,曾几次动脑筋想办法来解决导轨测量问题。他开始用万能表测量,解决 The accuracy and working ability of the machine tool depend largely on the quality of the guide rail, so the straightness of the guide rail is very important. Measuring the flatness of the guide rail requires the use of a precision instrument such as an optical collimator. I plant mechanic repair workshop comrade Zhou Mohui, in order to make the machine can be restored to the original accuracy, have several ways to find ways to solve the rail measurement problems. He started measuring and solving with a multimeter