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公法线千分尺要求两测量面必须与活动测杆的旋转轴线垂直,才能保证公法线千分尺两测量面的平行性。修理方法: 1.对于固定测量面是整圆的公法线千分尺,一般可采用千分尺研磨器研磨修复,但研磨器的外径尺寸应大于测量面的外径尺寸。 2.对于固定测量面是“1/2”或“1/6”面的公法线千分尺可把公法线千分尺活动测量杆夹持在检具上(如图示)。用“0”级刀口直角尺检查活动测量面与测量杆旋转轴线的垂直度。根据检查结果,首先在专用研磨平板上研修活动测量面,使其与测量杆轴线的垂直度不应大于1.75μ(可用光隙法比较,不出白光、色光即可),然后,再以活
Public normal micrometer requires two measuring surfaces must be perpendicular to the axis of rotation of the measuring rod in order to ensure the parallelism of the two measuring surfaces of the common-law micrometer. Repair methods: 1. For the fixed measurement surface is a full circle of the common law micrometer, the general use of micrometer grinder grinding repair, but the grinder diameter size should be greater than the outer diameter of the measuring surface size. 2. For a common-sense micrometer with a “1/2” or “1/6” face on a fixed measurement surface, hold the male-normal-position micrometer activity-measuring rod on the gage (as shown). Use the “0” level knife-edge square to check the perpendicularity of the active measuring surface to the measuring rod axis of rotation. According to the test results, first in a special grinding flat activity measuring surface, so that the vertical axis of the measuring rod should not be greater than 1.75μ (available gap method, no white, shade can be), and then live