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大尺寸外径千分尺尺架变形后,使两个测量面不平行,从而影响测量精度。我们对300～1000毫米这类千分尺尺架的变形,用一种较为简便的方法进行调修,取得了一定的效果。调修方法如下。首先将两根测杆卸下,装在别的千分尺尺架上研磨其测量面。对于活动测杆,可装在50～75毫米千分尺尺架上研磨。对于可换测杆,可按图1所示装在25～50毫米千分尺尺架上研磨,研磨时,每换一个研磨器,要把测杆转动一个90°角;还应注意所用的尺架测砧和测杆孔须保持同心性。
Large size diameter micrometer scale frame deformation, the two measuring surfaces are not parallel, thus affecting the measurement accuracy. We 300 ~ 1000 mm on the micrometer scale deformation, with a more convenient method of repair, and achieved some results. Adjustment method is as follows. First remove the two rods, mounted on another micrometer scale to grind the measuring surface. For the activity of measuring rod, can be mounted on the 50 ~ 75 mm micrometer scale frame grinding. For the test rod can be changed, as shown in Figure 1 installed in the 25 ~ 50 mm micrometer scale on the grinding, grinding, each change a grinder, the measuring rod to rotate a 90 ° angle; also should pay attention to the use of the scale frame The anvil and spindle must be concentric.