Non-contact measuring device and non-contact measuring method for inner ring channel position of angular contact ball bearing

Abstract

The invention relates to a non-contact measuring device and non-contact measuring method for an inner ring channel position of an angular contact ball bearing. The measuring device comprises an innerring mounting structure, a sensor bracket, a swing angle motor, a non-contact distance measuring sensor, an upper encoder and a computer. During measurement, the non-contact distance measuring sensoris driven by the swing angle motor to swing around the rotation central axis of a swing angle electric swing output part; when the rotation center axis of the swing axis swing output part is used as acoordinate origin point, the origin point position is not changed in the whole non-contact measurement process; the non-contact distance measurement sensor measures the distance between the rotationcenter axis of the swing axis and the corresponding outer contour point, so that the subsequent calculation process is effectively simplified. Moreover, compared with the structure using a rotating support to drive a displacement sensor to swing for distance measurement in the prior art, the provided non-contact measuring device has the following advantages: the sensor bracket is fixed; and the swing angle motor drives the non-contact distance measurement sensor to swing, so that the measurement influence caused by assembling errors is effectively avoided.

Description

technical field [0001] The invention specifically relates to a non-contact measuring device and a measuring method for the channel position of an inner ring of an angular contact ball bearing. Background technique [0002] Angular contact ball bearings can bear radial and axial loads at the same time, and have the advantages of high speed and high precision. The design of the inner groove of this type of bearing is complicated, and the curved surface profile of the raceway of the angular contact ball bearing ring is close to 1 / 4 of the arc, which is called "half groove". When actually measuring the "groove position" of the ferrule, because the groove shape of the angular contact ball bearing is "incomplete", problems often occur that the measurement accuracy and measurement accuracy cannot meet the requirements. [0003] The channel position of the inner ring of angular contact ball bearings is an important geometric parameter. At present, the main measurement methods are: ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a non-contact measuring device for the channel position of the inner ring of an angular contact ball bearing to solve the technical problem in the prior art that the eccentric arrangement of the motor shaft and the displacement sensor causes the origin of the displacement sensor to always change, which leads to cumbersome subsequent calcul

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