Outer ring machining method of precise angular contact ball bearing and drilling device thereof

Abstract

The invention discloses an outer ring machining method of a precise angular contact ball bearing. The outer ring machining method sequentially comprises the following steps of coarsely grinding the end face; coarsely grinding the outer diameter; grinding the outer diameter and the inner diameter;coarselygrinding an outer groove; coarselygrinding a counterbore; additionally conducting tempering; finally grinding the end face;finely grinding the end face; finely grinding the outer diameter; finally grinding the counterbore; finally grinding the outer diameter;finally grinding agroove; conductingultrafine grinding on the groove. The working procedure of finally grinding the counterbore is set after the outer diameter is finely grinded and before the outer diameter is finally grinded, measuring the height of a lock point is converted into measuring the diameter of the counterbore, the change amount of the working procedure is effectively controlled, the deformation amount of the working procedure is reduced, the deformation generating during final grinding of the counterbore can be amended, the flanging phenomenon generated in the junction of the groove during final grinding of the counterbore can be restored, the precision during final grinding of the groove is guaranteed, three working procedures are reduced simultaneously, the work efficiency is improved, a bearing sleeve drilling device is adopted for drilling, the structure is simple, few parts are utilized, the price is low, the drilling and machining position is accurate, a bearing sleeve cannot be deformed, and the drilling quality of the bearing sleeve is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of bearings, in particular to a method for processing the outer ring of a precision angular contact ball bearing and a drilling device thereof. 【Background technique】 [0002] Ball bearings can bear radial load and axial load at the same time. Can work at higher speeds. The larger the contact angle, the higher the axial load carrying capacity. High-precision and high-speed bearings usually take a contact angle of 15 degrees. Under the action of axial force, the contact angle will increase. Precision angular contact ball bearings are widely used in key parts of equipment such as machine tool spindles, and their precision directly affects the machining accuracy of the equipment. In particular, the light and narrow series are the most widely used. Due to the high precision and thin wall thickness of this series of bearings, it is easy to deform during the processing and the processing is difficult. At pr...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a method for processing the outer ring of a precision angular contact ball bearing and a drilling device thereof, which aims to solve the problem of easy deformation of the precision angular contact ball bearing in the prior art during processing , difficult to process, low pass rate, long manufacturing cycle, high cost, and easy to affect the technical problems of the rotation accuracy of the finished bearing

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