Bidirectional press-fit die for embedded joint bearing

Abstract

The invention discloses a bidirectional press-fit die for an embedded joint bearing. The bidirectional press-fit die comprises a mandrel and two groups of press-fit dies which are oppositely arranged,and each group of press-fit dies comprises an inner ring limiting block, an outer ring limiting block and an press-fit bottom plate; the press-fit bottom plate is connected between the inner ring limiting block and the outer ring limiting block in a sliding mode, a first reset piece is arranged between the inner ring limiting block and the press-fit bottom plate, and a second reset piece is arranged between the outer ring limiting block and the press-fit bottom plate; and when the inner ring limiting block and the outer ring limiting block abut against an inner ring end face and an outer ringend face of the joint bearing correspondingly, and the press-fit bottom plate can overcome the reset force of the first reset piece and the second reset piece under the action of external force to continue to slide so as to press a bush between the inner ring and the outer ring of the joint bearing. The bidirectional press-fit die is high in press-fit efficiency, the efficiency can be improved bymore than one time compared with a traditional press-fit die, the press-fit quality is stable, and the service life of the joint bearing is prolonged.

Description

technical field [0001] The invention relates to a two-way pressure-fitting mold of an inlaid joint bearing. Background technique [0002] The press-fitting mold of the mosaic joint bearing plays a very critical role in the assembly process, and the final quality of the mosaic joint bearing product largely depends on the ingenuity and precision of the design of the press-fit tooling. [0003] Such as figure 1 The mosaic-type joint bearing press-fitting die of the traditional structure shown includes a press-fit upper die 1', a press-fit lower die 2' and a mandrel 3', and a rod-end joint bearing (including a rod-end body 51' and an inner ring 52' ) as an example, put the rod end joint bearing on the mandrel 3' and the press-fit lower die 2', put the copper bushing 4', apply pressure to the press-fit upper die 1', and place the copper bushing Press fit the pad into the upper hemisphere of the spherical plain bearing 5', turn the spherical plain bearing upside down and press f...

AI Technical Summary

Problems solved by technology

[0004] (1) This mold is a one-way press-fit tooling, the press-fit steps are complicated, and the press-fit efficiency is low

[0005] (2) The symmetry accuracy of the inner ring relative to the rod end body (outer ring) after press-fitting is low, especially the upper hemispherical bushing after the first press-fitting will cause secondary The movement causes the upper and lower hemispherical bushes to be out of center after press-fitting, and the ball diameters are inconsistent, thus affecting the service life

Images