Phase marking device

Abstract

The invention discloses a phase marking device. The phase marking device comprises a fixed seat fixed on an axle storage rack and a marking rod arranged on the fixed seat, wherein the height of the marking rod is equal to the distance from the axle center line to the surface of the axle storage rack. During marking, the marking rod is used for making contact with and abutting against any wheel seat of the axle to determine the marking position of the corresponding wheel seat, or the marking rod is used for making contact with and abutting against any disc seat of the axle to determine the marking position of the corresponding disc seat. The phase marking device is simple in structure, convenient to operate and convenient for operators to use, and compared with a large-scale phase detectiontool in the prior art, the phase marking device is small, exquisite, light and easy to store without need of specifically manufacturing any tool storage rack.

Description

technical field [0001] The invention relates to the technical field of vehicle assembly, in particular to a phase scribing device. Background technique [0002] With the continuous increase in the speed of railway passenger cars, the quality requirements for wheel sets are also getting higher and higher. Among them, after the wheels and brake discs are press-fitted, the phase difference between the residual static unbalance marks of the two wheels is 180°±5°, and the phase difference between the residual static unbalance marks of the two brake discs is 180°±5°. At present, the industry mainly uses the following two methods to solve this problem: one is to draw a line directly on the position of the static unbalance mark of the wheel and brake disc, and artificially displace the left and right wheels and two brake discs by 180° during assembly. It is difficult to quantify the value, mainly relying on the visual inspection of personnel; the second is to make a large-scale sta...

AI Technical Summary

Problems solved by technology

At present, the industry mainly solves this problem through the following two methods: one is to draw a line directly on the position of the static unbalance mark of the wheel and brake disc, and artificially displace the left and right wheels and two brake discs by 180° during assembly. It is difficult to quantify the value, mainly relying on the visual inspection of personnel; the second is to make a large-scale static unbalance mark position phase detection tool, but it is extremely inconvenient for the operator to use and store

[0003] Therefore, how to prevent the operator from being unable to use an easy-to-operate phase marking device to ensure that after the wheels and brake discs are pressed, the phase difference between the positions of the residual static unbalance marks of the two wheels is 180°±5°, and the residual static unbalance marks of the two brake discs The position phase difference is 180°±5°, which is a technical problem to be solved by those skilled in the art

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