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公法线千分尺在使用中,由于测量面的磨损等原因,造成两测量面不平行,使测量值与工件实际值不相符。为此需要对两测量面进行修理。我们采用下述方法进行修复,现以0～25mm公法线千分尺为例: 首先对两测量面进行平行性误差测量,把固定测砧平面作为标准面(见图1)。再把每次误差记录下来,并进行分析,一般有三种情况: 第一种情况如图2所示:按图分析,因四个测量面的误差,大致都在同一位置上,可以认定是固定测砧平面对轴心线不垂直,而活动测量砧平面是垂直轴心线的,只要修研固定测砧平面+8部位,待研出后再测量直至修复。
Common law micrometer in use, due to wear and other reasons measuring surface, resulting in two measuring surface is not parallel, the measured value and the actual value of the workpiece does not match. For this purpose, two measuring surfaces need to be repaired. We use the following method to repair, now the 0 ~ 25mm public normal micrometer as an example: First, the two measurement surface parallelism error measurement, the fixed anvil plane as a standard plane (see Figure 1). Then each error is recorded and analyzed, there are three cases: the first case shown in Figure 2: According to the analysis of the graph, due to the error of the four measurement surfaces are generally in the same position, can be considered fixed The anvil plane is not perpendicular to the axis of the axis, and the anvil plane of the active measurement is a vertical axis, as long as the +8 part of the plane of the fixed anvil is repaired and measured until it is repaired.