Positioning and reducing press-fitting tool for open bushing

By designing a positioning and diameter reduction press-fitting fixture and using a telescopic motor to control the positioning and diameter reduction process of the bushing, the problem of inconsistent installation of the open bushing on the steering knuckle was solved, achieving a highly efficient and precise press-fitting effect and improving assembly efficiency and mechanical properties.

CN224508930UActive Publication Date: 2026-07-17拓普电动车热管理系统(宁波)有限公司
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
拓普电动车热管理系统(宁波)有限公司
Filing Date
2025-07-28
Publication Date
2026-07-17

Smart Images

  • Figure CN224508930U_ABST
    Figure CN224508930U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of positioning reducing diameter press-fit tool of split bush, including the base being mounted on press, the mounting hole fixing seat of bush hole fixing seat for supporting knuckle to be press-fitted are equipped on the base, further include the press-fit support for press-fitting split bush, the press-fit support includes two columns, the top of the column is equipped with a first telescopic motor, the telescopic rod end of the first telescopic motor is equipped with press-fit platform, the middle part of the press-fit platform is fixed with reducing diameter block, the side of reducing diameter block is equipped with avoiding slot, one side of the press-fit platform is equipped with second telescopic motor, the telescopic rod end of the second telescopic motor is equipped with positioning pin.The utility model when press-fitting, split bush is first by positioning pin control guarantee the consistency of opening orientation, then gradually reduced to be matched with bush mounting hole by reducing diameter block limitation to outer diameter, to accurately install into the bush mounting hole of knuckle, effectively improve the assembly efficiency and precision of split bush.
Need to check novelty before this filing date? Find Prior Art

Claims

1. A positioning and reducing press tool for open bushings, comprising a base mounted on a press, characterized in that, The base is provided with mounting hole fixing seats and bushing hole fixing seats for supporting the steering knuckle to be pressed in, and also includes a pressing bracket for pressing in the open bushing. The top of the mounting hole fixing seat is provided with a protrusion whose outer diameter matches the diameter of the mounting hole. The bushing hole fixing seat includes a semi-annular support column. The upper part of the support column is provided with a washer with an inner diameter that is the same as the bushing hole diameter of the steering knuckle to be press-fitted. The top of the support column is a limiting boss. The press-fitting bracket includes two columns respectively located on both sides of the bushing hole fixing seat. Each column has a vertically upward-facing first telescopic motor at its top. The telescopic rod of each first telescopic motor has a press-fitting platform at its end, and a diameter reduction block is fixed to the middle of the press-fitting platform. The reduced diameter block is internally divided into a pre-assembly section, a reduced diameter section, and a pressing section from top to bottom. The inner diameter of the pre-assembly section matches the outer diameter of the open bushing in its initial state. The inner diameter of the pressing section matches the inner diameter of the bushing hole. The reduced diameter section is inverted conical, with its upper edge matching the inner diameter of the pre-assembly section and its lower edge matching the inner diameter of the pressing section. The side of the reduced diameter block is provided with a clearance groove corresponding to the opening of the open bushing. A second telescopic motor is provided on one side of the pressing platform, horizontally oriented towards the reduced diameter block. The end of the telescopic rod of the second telescopic motor is provided with a positioning pin that matches the opening.

2. The positioning and reducing press-fitting tool for an open bushing according to claim 1, characterized in that, The support column is a hollow column, and a third telescopic motor is arranged vertically upward at the bottom inside. The end of the telescopic rod of the third telescopic motor is provided with a support platform for pre-supporting the bottom surface of the open bushing.

3. The positioning and reducing press tooling for open bushings of claim 1, wherein, There are two mounting hole fixing seats, which are respectively located on both sides of the bushing hole fixing seat.

4. The positioning and reducing press tooling for open bushings of claim 1, wherein, The top surface of the mounting hole fixing seat is the mounting surface, which is in contact with the surface where the mounting hole is located, and the protrusion is provided on the surface of the mounting surface.

5. The positioning and reducing press tooling for open bushings of claim 1, wherein, The outer diameter of the support column is smaller than the outer diameter of the reduced diameter block. The bottom periphery of the reduced diameter block is provided with a guide boss. The inner diameter of the guide boss matches the outer diameter of the reduced diameter block. The inner periphery of the bottom surface of the guide boss or the outer periphery of the top surface of the support column is provided with a chamfer or rounded corner.

6. The positioning and reducing press tooling for open bushings of claim 1, wherein, The base is equipped with handles on both sides.