A two-way press-fit die for mosaic spherical plain bearings

By designing the bidirectional press fitting mold of the inlaid joint bearing, using the press fitting mold set oppositely and the slidingly connected press fitting bottom plate, the problems of low efficiency and low symmetry accuracy of the traditional one-way press fitting mold are solved, and efficient and stable bidirectional press fitting is achieved, which improves the service life of joint bearings.

CN111637169BActive Publication Date: 2025-03-18FUJIAN LONGXI BEARING (GROUP) CO LTD
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Patent Information

Application Number
CN202010458089.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-05-26
Publication Date
2025-03-18
Estimated Expiration
2040-05-26

AI Technical Summary

Technical Problem

The traditional inlay joint bearing press fitting mold is unidirectional press fitting, with complex steps and low efficiency. The symmetry accuracy of the inner ring and the outer ring after press fitting is low, which affects the service life.

Method used

A bidirectional press fitting mold of inlay joint bearing is designed, including a mandrel and two sets of press fitting molds arranged oppositely. Each set of molds includes an inner ring limiting block, an outer ring limiting block and a slidably connected press fitting base plate. Bidirectional press fit is achieved through the coordination of the limiting block and the reset part.

Benefits of technology

The bushing depth after press-fitting is achieved consistent, concentric and consistent spherical diameter, which improves the symmetry accuracy between the inner ring and the outer ring, simplifies the press-fitting steps, more than doubles the efficiency, and improves stability and service life.

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Abstract

The present invention discloses a two-way press-fit die for an inlaid joint bearing, comprising a mandrel and two sets of press-fit dies arranged opposite to each other, each set of press-fit dies respectively comprising: an inner ring stop block; an outer ring stop block; and a press-fit base plate, which can be slidably connected between the inner ring stop block and the outer ring stop block, a first reset member is provided between the inner ring stop block and the press-fit base plate, and a second reset member is provided between the outer ring stop block and the press-fit base plate, when the inner ring stop block and the outer ring stop block are respectively pressed against the inner ring end face and the outer ring end face of the joint bearing, the press-fit base plate can overcome the reset force of the first reset member and the second reset member under the action of external force and continue to slide to press the bushing between the inner ring and the outer ring of the joint bearing. The present invention has high press-fitting efficiency, which can improve the efficiency by more than double compared with the traditional press-fitting die, has stable press-fitting quality, and improves the service life of the joint bearing.
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