千分尺使用一两个周期后,即使上紧调节螺母,仍不能减小活动丝杆的轴线窜动。本文介绍一个简便易行的解决办法。具体作法是:将一把什锦锉刀刀面两边磨成斜三角形见图,以能下到豁口内为准(豁口厚度约1.5mm),然后锉通三瓣螺母,再轻轻上紧调节螺母,使三瓣螺母能灵活收缩,便可大大减小丝杆的窜动。 After using the micrometer for a period of one or two cycles, even if the adjusting nut is tightened, the axis of the movable lead can not be reduced. This article describes a simple and easy solution. Specific approach is: a pair of assorted rasp face both sides of the oblique triangle see Figure, to be able to under the gap to prevail (gap thickness of about 1.5mm), and then file through the three valve nut, and then gently tighten the adjusting nut, So that three-valve nut can be flexible contraction, can greatly reduce the screw movement.