Error detecting tool for dimension of circumferential hole position

Abstract

The invention relates to the field of dimension measuring instruments, in particular to an error detecting tool for a dimension of a circumferential hole position. An error detecting tool for a dimension of a circumferential hole position includes a central shaft, on which a reference measuring component and a movement measuring component are disposed, wherein the reference measuring component isfixedly disposed on the central shaft, the movement measuring component can rotate relative to the central shaft, the reference measuring component includes a reference angle disk sleeved on the central shaft and a radially extending reference measuring ruler, the movement measuring component includes a movement angle disk sleeved on the central shaft and a radially extending movement measuring ruler, the movement angle disk and the movement measuring ruler synchronously move, the reference angle disk is provided with a large scale, the movement angle disk is provided with a small scale, and the reference angle disk and the movement angle disk are matched to measure angles. The problem that the measuring device existing in the prior art is large in volume and low in measuring accuracy is solved.

Description

technical field [0001] The invention relates to the field of size measuring instruments, in particular to a tool for detecting position and size errors of circumferential holes. Background technique [0002] In the manufacturing process of the machinery industry, it is often necessary to detect the position and size of the circumferential holes on the parts, such as flanges. Flanges are mainly used for the connection of pipelines. They are very common in boilers, pipelines and other projects. One of the most widely used parts. There are generally many connection holes for assembly distributed on the circumference of flange parts. The angular position relationship between the flange hole in the middle and the connection hole is an index that limits the amount of change in the position of the actual element to the ideal element. It is often A difficult point to check. [0003] For parts such as flanges with multiple circumferential holes on the circumference, there are curre...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of large volume and low measurement accuracy of the measuring device in the prior art, the present invention proposes a circumferential hole position and size error detection tool, which solves the above-mentioned technical problems. The technical scheme of the present invention is as follows:

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