游标卡尺外测量爪多数带刀口,使得外测量爪的平面度和平行度在修理时不易磨平。在研磨外测量爪平面度和平行度之前,先修磨主尺和游框基面的平直性,然后装上弹簧片,消除主尺和游框的间隙方可研磨外测量面。主尺和游框两基面靠装在游框内的簧片弹力紧密贴合,从而保证主尺和游框的正确位置和配合关系。研磨时若施力点位置不正确 Most of the vernier caliper measurement with a knife blade, making the measurement of the flatness and parallelism outside the claw is not easy to polish when repaired. Before grinding the flatness and parallelism of the measuring claw, grind the flatness of the main ruler and the base of the traveling frame, and then install the spring plate to eliminate the gap between the main ruler and the traveling frame to grind the outer measuring surface. The two main surfaces of the main ruler and the traveling frame are closely attached by the spring reeds mounted in the traveling frame so as to ensure the correct position and cooperation of the main ruler and the traveling frame. Grinding if the force point position is not correct