Rolling mill bearing hole measuring device and measuring method thereof

Abstract

The invention discloses a rolling mill bearing hole measuring device and a measuring method thereof, which belong to the technical field of mechanical measurement. The rolling mill bearing hole measuring device comprises a magnetic base and a rod-shaped support parallel to the end face of a bearing hole, wherein the support is provided with a reference block and a measuring head; the reference block and the measuring head are both in sliding fit with the support, are both of a length-adjustable structure relative to the support and are used for measuring bearing holes with different diametersand diameters of different sections of the bearing holes, and the reference block and the measuring head are arranged on the support through fasteners respectively. The bearing hole diameter measuringmethod comprises the following steps: the magnetic base is attracted to the end face of a bearing hole, and the support fixing reference block connected with the magnetic base and the measuring headextend into the bearing hole to measure the diameter of the bearing hole; bearing holes with different diameters can be measured by adjusting the relative distance between the reference block and themeasuring head on the support; and the inner diameters of different sections of the bearing hole can be measured by adjusting the distance between the reference block and the measuring head and the end face of the bearing hole. Artificial measurement errors are eliminated, the efficiency and accuracy of bearing hole detection are improved, and the installation precision of the bearing is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical measurement, and in particular relates to a rolling mill bearing hole measuring device and a measuring method thereof. Background technique [0002] The bearing hole of the rolling mill is worn or deformed during use. When installing the bearing, it is necessary to detect the dimensional tolerance of the inner hole to ensure the installation quality of the bearing. The diameter of the rolling mill bearing hole is large, and an inner micrometer is generally used to measure the diameter of the inner hole. Since the inner diameter micrometer needs to preset the size of the inner diameter micrometer according to the diameter of the inner hole, the presetting process is time-consuming. At the same time, when measuring the diameter of the inner hole, due to the large depth of the bearing housing hole, the inner diameter micrometer is not easy to keep perpendicular to the inner hole wall in the hole,...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a rolling mill bearing hole measuring device and its measuring method, aiming to solve the technical problems of the above-mentioned prior art that the measurement of the inner diameter micrometer is inconvenient, the requirements for the measuring personnel are high, and the measurement error is easily caused.

Images