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根据内测千分尺的结构特点,影响其示值误差的因素,除微分丝杆磨损引起螺距误差这一原因外,主要还有如下原因造成:例如内测千分尺两圆弧量爪偏位、松动引起的相对转动;圆弧量爪磨损引起倒圆半径超差;微分丝杆轴向窜动;圆弧量爪母线与微分丝杆轴线不垂直引起的示值误差等等。而微分丝杆螺距误差引起的示值误差应放在最后处理。
According to the structural characteristics of the micrometer micrometer, the factors that affect the indication error, in addition to differential screw lead to pitch error caused by this reason, there are mainly the following reasons: For example, the micrometer within the two arc claws deviation, loose caused Of the relative rotation; circular arc claw wear caused by rounding radius tolerance; differential screw axial movement; arc amount of differential screw axis and differential screw shaft caused by the value of the error and so on. The differential screw lead error caused by indication error should be placed on the final deal.