Serialized method for measuring groove diameters of inner and outer rings of noncircular-channel bearing

Abstract

The invention relates to a serialized method for measuring groove diameters of inner and outer rings of a noncircular-channel bearing, belongs to the technical field of bearing technology detection and mainly aims to solve the problem that groove diameters of inner and outer rings of a noncircular-channel bearing cannot be directly measured at present. The method is mainly characterized in that D012 and D022 bearing instruments, a finished bearing steel ball and standard outer and inner ring samples are adopted, the diameter of the finished bearing steel ball is taken as the groove curvature of the standard outer ring sample, and a theoretical groove bottom diameter converted from a rounding diameter in a figure is taken as the channel diameter of the standard outer ring sample; the standard outer ring sample is placed on one bearing instrument, and a pointer of a dial indicator is adjusted to point at the 0 position which is the theoretical size of the channel diameter of the stand ring samples; and then the stand ring samples are taken down, a to-be-detected outer ring and a to-be-detected inner ring are put on the bearing instruments and are rotated by one circle, and numerical readings on the instruments and the amount of variation are respectively the actual sizes of the groove diameters of inner-ring and outer-rings grooves and the deviation. The method has the characteristics of direct measurement, accurate measurement, high efficiency and higher product matching rate and is mainly used for serialized measurement of the groove diameters of the inner and outer rings of the noncircular-channel bearing.

Description

technical field [0001] The invention belongs to the technical field of bearing process detection, and in particular relates to a serialized non-circular groove bearing groove diameter measurement method, which is suitable for the inside and outside of three-point contact bearing grooves, four-point contact bearing grooves, elliptical bearing grooves and other non-circular groove bearing grooves. Ring groove diameter measurement. Background technique [0002] The groove diameter of the non-circular raceway bearing cannot be directly expressed, so the groove diameter size of the drawing design is expressed by the complex circle diameter. At present, the domestic non-circular raceway bearing groove diameter measurement also adopts the method of measuring the complex circle diameter to indirectly measure the groove diameter. However, to measure the complex circle diameter, some auxiliary special inspection tools must be designed. The inspection is cumbersome and the inspection e...

AI Technical Summary

Problems solved by technology

[0002] The groove diameter of non-circular groove bearings cannot be directly expressed, so the groove diameter size of the drawing design is expressed by the diameter of the compound circle. diameter, but to measure the diameter of compound circle, some auxiliary special inspection tools must be designed, which is cumbersome and has low detection efficiency, so it is not suitable for use in the field of groove diameter processing

In addition, measuring this size is not easy to assemble and match, and it needs to be converted into groove diameter before matching, which directly affects the matching rate of products

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