A high-precision positioning and assembling device for a high-pressure common rail high-pressure oil pump bearing and a use method thereof

By using an adaptive clamping and mechanical linkage device, the problem of insufficient positioning accuracy during bearing assembly was solved, achieving high-precision bearing pressing and automated production, thus ensuring assembly quality and production efficiency.

CN122142724APending Publication Date: 2026-06-05WUXI ZHENGDA BEARING MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUXI ZHENGDA BEARING MASCH MFG CO LTD
Filing Date
2026-05-07
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing bearing assembly devices suffer from insufficient workpiece clamping and positioning accuracy, which makes the bearing prone to displacement during the pressing process, affecting assembly accuracy and service life.

Method used

Employing multiple sets of movable parts with elastic elements and linkage mechanisms, the pump body shape is adaptively compressed. Combined with the linkage of the trigger plate and the linkage, multi-point uniform compression and automatic limiting are achieved. With the mechanical linkage of the arc rack and gear, automated production line production is realized.

Benefits of technology

It achieves high-precision bearing positioning, avoids misalignment during assembly, ensures the accuracy of bearing press-in angle and depth, supports automated production, and improves assembly efficiency and reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122142724A_ABST
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Abstract

The application relates to the technical field of oil pump bearing assembly, in particular to a high-precision positioning and assembling device for high-pressure common rail high-pressure oil pump bearings, which comprises a clamping assembly for fixing a workpiece, the clamping assembly comprises a mounting cylinder and an auxiliary cover, a plurality of movable components are slidably arranged in the mounting cylinder, a trigger disc is slidably arranged below the movable components in the mounting cylinder, a connecting rod is arranged on the side surface of the mounting cylinder and can limit the position of the auxiliary cover by following the descent of the trigger disc, and a bearing mounting hole is arranged on the auxiliary cover; a platform is arranged for driving the clamping assembly to move, guide grooves and limiting guide grooves are arranged on the platform, a conveying assembly is arranged at the bottom of the platform, and a pressing assembly for pressing the bearings into the pump body is arranged on the platform. According to the application, a plurality of movable components with elastic components are arranged, the descending height of each movable component can be automatically adjusted according to the contour of the pump body, multi-point uniform pressing is realized, the positioning deviation caused by rigid clamping is effectively avoided, self-adaptive clamping is realized, the positioning precision is high, and the assembling precision is improved.
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