Thin-wall bearing outer ring lathing method and thin-wall bearing outer ring end face groove symmetry degree measuring method

Abstract

The invention discloses a thin-wall bearing outer ring lathing method and a thin-wall bearing outer ring end face groove symmetry degree measuring method, and relates to the field of thin-wall bearingmachining and measuring. The technical problems that an existing thin-wall bearing is prone to deform in the machining process, and the efficiency of measuring the symmetry degree of an end face groove of the existing thin-wall bearing is low are solved. The lathing method comprises the steps of rough lathing, water immersion ultrasonic flaw detection, fine lathing, polishing, medium-temperaturestress relief, uniform grinding of two planes, soft grinding of the outer diameter, final lathing of a roller path, chamfering of an inner angle, milling of an end face groove, deburring, polishing, high-temperature stress relief, heat treatment, polishing and grinding machining. The outer ring end face groove symmetry degree measuring method comprises the steps of installing a measuring device, measuring h1 and h2 so that the absolute value of the difference between h1 and h2 is the symmetry degree of the narrow groove relative to the outer diameter center line, and similarly, measuring the wide groove. According to the method, the deformation of the thin-wall bearing during machining is reduced, the machining precision is improved, a method for measuring the symmetry degree of the end face groove replaces three-coordinate measurement, and the production efficiency is improved. The method is used for lathing the thin-wall bearing and measuring the symmetry degree of the end face groove of the thin-wall bearing.

Description

technical field [0001] The invention relates to the field of thin-walled bearing processing and measurement. Background technique [0002] Thin-walled bearings are designed for narrow structural space of the main engine or special performance requirements. When the ratio of the outer diameter to the inner diameter of the bearing is less than or equal to 1.143, it is called a thin-walled bearing. The biggest difficulty in processing thin-walled bearings is that the ring is easily deformed during the processing, and the deformation is caused by clamping the outer diameter or inner diameter, and the processing method is not appropriate, and the problem of deformation has not been effectively solved. [0003] The outer ring of the thin-walled bearing is actually an elastic body. Although the machined surface of the outer ring is rounded by the car, due to elastic deformation, the outer ring returns to its original shape after the claws are released, that is, the shape and positi...

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