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Automobile hub bearing inner ring and mandrel grinding machining technique

A technology of bearing inner ring and automobile wheel hub, which is applied in metal processing equipment, machine tools designed for grinding the rotating surface of workpieces, grinding machines, etc. The effect of reducing product rework and solving deformation problems

Inactive Publication Date: 2017-08-18
海宁奥通汽车零件有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a grinding process for the inner ring and the mandrel of the automobile wheel hub bearing. Deformation problems, parallelism of two rows of channels and non-coaxial problems of two rows of channels reduce product rework, improve production efficiency, and improve product life and driving comfort after being installed on the car

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  • Automobile hub bearing inner ring and mandrel grinding machining technique

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Embodiment Construction

[0014] as attached figure 1 Shown, a kind of automobile hub bearing inner ring and mandrel grinding processing technology, comprises the following steps,

[0015] A. Grind both ends of the inner ring 1 to ensure the parallelism and roughness of both ends, coarsely grind the outer diameter and groove of the inner ring 1, and finely grind the inner diameter of the inner ring 1;

[0016] B. Finish turning the mandrel 2, and rough grinding the outer diameter, shoulder and channel for installing the inner ring 1;

[0017] C. Press the inner ring 1 completed in step (A) onto the outer diameter of the mandrel 2 completed in step (B), use the grinding wheel 3 to simultaneously grind the outer diameter of the inner ring 1, press the outer diameter of the seal ring on the mandrel 2 and the inner ring 1 1. The channel of the mandrel 2; after the grinding process is completed, the channels of the inner ring 1 and the mandrel 2 are superfine together, that is, the grinding process of t...

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Abstract

The invention discloses a process for grinding the inner ring and mandrel shaft of an automobile hub bearing, which comprises the following steps: A. Grinding both ends of the inner ring and fine grinding the inner diameter of the inner ring; B. Finish turning the mandrel, rough grinding the outer diameter, shoulder and channel for installing the inner ring; C. Press the inner ring that has completed step (A) onto the outer diameter of the mandrel that has completed step (B), and use the grinding wheel to simultaneously grind the outer diameter of the inner ring, the outer diameter of the sealing ring on the mandrel, and the channels of the inner ring and the mandrel ; After the grinding process is completed, the channel of the inner ring and the mandrel is super-fine, that is, the grinding process of the inner ring and the mandrel is completed. The invention grinds the inner ring and the mandrel at the same time, which effectively solves the deformation problems after the interference fit between the existing inner ring and the mandrel, the parallel difference of the two rows of grooves and the problem of different axes of the two rows of grooves, reducing It reduces product rework, improves production efficiency, and at the same time improves product life and driving comfort after being installed on the car.

Description

technical field [0001] The invention relates to a grinding process of an automobile wheel hub bearing, in particular to a grinding process of an inner ring and a mandrel shaft of an automobile wheel hub bearing. Background technique [0002] In recent years, my country's automobile industry has been in a period of rapid development, and its production and sales have continued to increase. Considering long-term development, various manufacturers and users have put forward higher requirements for the quality of complete vehicles. The main function of the automobile hub bearing is to bear the load and provide precise guidance for the rotation of the hub. It bears both axial load and radial load, and is a very important component. Bearing life is a comprehensive index for evaluating automobile wheel bearings, and the choice of processing technology has a great influence on the life of automobile wheel bearings. [0003] The traditional process is to grind the inner ring and the...

Claims

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Application Information

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IPC IPC(8): B24B1/00B24B5/44B24B5/36
CPCB24B1/00B24B5/36B24B5/44
Inventor 徐颖平付丹瑜
Owner 海宁奥通汽车零件有限公司