B7 angular contact ball bearing assembly die and its assembly method

Abstract

The invention relates to an assembling mould of a B7 contact ball bearing, which comprises a round assembling mould terrace, and is characterized in that the terrace is provided with a taper table figure central positioning table; a steel ball positioning table for positioning a bearing steel ball in the process of assembling is arranged at the housing washer of the central positioning table; the steel ball positioning table is a stepped table, and the step is a two-grade step higher inside and lower outside. The method for assembling the B7 contact ball bearing includes the following steps: the retainer is sheathed on the assembling mould along the axial direction; the heated housing washer is sheathed on the retainer along the axial direction; the steel ball slides along the top taper part of the assembling mould to be located in a jolt; an inner race is inserted along the axial direction. The assembling mould has the following advantage: as each spare part can be precisely located by being assembled on the positioning mould, and lipid is not needed for adhesion, and the assembling time is shortened, the whole process is guaranteed to be completed in the range of an allowed retraction for the cooling of the housing washer, so that the assembling mould of a B7 contact ball bearing has the effect of fast and accurate assembling.

Description

technical field [0001] The invention relates to the technical field of bearing manufacture, in particular to an assembly mold for bearing manufacture and an assembly method for such a bearing. Background technique [0002] In the prior art, the usual assembly method of B7 angular contact ball bearings is as follows: first, after the outer ring of the bearing is heated and expanded to a certain amount, it is taken out from the heating furnace and placed on the platform, and the cage is put into the outer ring. Then insert the steel balls into the pockets of the cage, stick the steel balls one by one to the pockets of the cage with grease to prevent falling off, and then insert the inner ring with the lock into the outer ring, cage and steel with assembly gaps. In the assembly of the ball, the grease needs to be cleaned at the end. [0003] The problems existing in the existing assembly are: the heated outer ring is taken out of the furnace and assembled with other parts on t...

AI Technical Summary

Problems solved by technology

[0003] The problems existing in the existing assembly are: the heated outer ring is taken out of the furnace and assembled with other parts on the platform, and the outer ring will retract as time goes by; and the instability of positioning by the oil sticking to the parts , so that the assembly gap is zero or the state of interference, continuing assembly will cause the inner ring lock and the surface of the steel ball to be scratched, resulting in the reduction of the bearing rotation accuracy and the increase of the vibration value, and the assembly has to be reheated, so one assembly low success rate

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