Micrometer for measuring over-ball distance between external gear and external spline
A micrometer and external spline technology, applied in the field of length measuring instruments, can solve the problems of influence on the accuracy of measurement results, poor measurement efficiency, unsuitable for self-inspection by front-line workers, etc., and achieves low measurement skills requirements, low manufacturing costs, and installation. easy effect
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[0012] The present invention will be further described below based on the drawings.
[0013] The figure shows a micrometer measuring the span of the external gear and the external spline. It is composed of a micrometer 1, a probe 2 and a circlip ring 3. The measuring head 2 consists of a spherical measuring head, an intermediate transition shaft and a pin shaft. The pin shaft section is inserted into the small holes of the measuring anvil 1.1 at both ends of the micrometer 1. The spherical measuring head directly contacts the workpiece to be measured, and the spherical measuring head is Φ2mm~ The sphere of Φ50mm, the pin shaft section matched with the measuring anvil 1.1 is a cylinder, and the middle section of the cylinder is provided with a concave ring groove to install the circlip 3. In the present invention, the measuring head 2 is used in pairs, the diameter and tolerance zone of the spherical measuring head of the two measuring heads are equal, and the distance between the...
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