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Spinning riveting assembly and manufacturing method of automobile hub bearing unit

A technology of an automobile wheel hub and a manufacturing method, which is applied in the field of spinning riveting assembly manufacturing of automobile wheel hub bearing units, can solve the problems of large fluctuation of preload, decrease of optimal value bearing life, failure, etc., so as to improve assembly efficiency, Eliminate hidden dangers of unloading and improve the effect of assembly quality

Inactive Publication Date: 2011-08-17
SHAOGUAN SOUTHEAST BEARING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it is necessary to twist the nut with a torque wrench during assembly to control the axial clamping force of the hub unit, and the control of the clamping force is inaccurate due to the manufacturing error of the parts in the unit. , the fluctuation of the preloading amount is large, which will cause the negative clearance of the bearing to deviate from the optimal value, reduce the life of the bearing, and greatly increase the dispersion of life; Loose due to vibration and other factors, resulting in preload unloading, and even failure in serious cases, posing a major safety hazard

Method used

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  • Spinning riveting assembly and manufacturing method of automobile hub bearing unit
  • Spinning riveting assembly and manufacturing method of automobile hub bearing unit
  • Spinning riveting assembly and manufacturing method of automobile hub bearing unit

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] see figure 1 , figure 2 and image 3 , a spinning type riveting assembly manufacturing method for an automobile hub bearing unit, the riveted hub bearing unit includes a flange outer ring 1, a hub shaft 5 including a riveted shaft end flange, a steel ball 2, a cage 8, Combined sealing ring and dust cover 7, small inner ring 3, two rows of raceways are arranged on the flange outer ring 1, a raceway and a journal for installing the small inner ring 3 are arranged on the hub shaft 5, The small inner ring 3 is pressed into the journal of the hub shaft 5 with an interference fit. The shaft end of the hub shaft 5 is higher than the large end face of the small inner ring 3 by a certain value. A raceway, the flange surface of the flange outer ring 1 has a wall hole through the inside and outside, the cutting sensor 10 is installed in the hole, the ri...

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Abstract

The invention relates to a spinning riveting assembly and manufacturing method of an automobile hub bearing unit. The method comprises the following steps: firstly machining a hub bearing; assembling an outer flange, steel balls, a small inner ring and a hub shaft according to the requirements of being approximate to zero end play, and assembling the bearing unit into a state before riveting according to a certain process; placing the assembled bearing unit on a worktable of a riveting machine tool for spinning deformation; and finally inspecting. The spinning riveting assembly and manufacturing method has the beneficial effects that assembly quality and assembly efficiency of the automobile hub bearing unit can be greatly improved, the assembled automobile hub bearing unit becomes a whole body, axial load (clamping force) of the small inner ring can be accurately controlled, reliability, safety and service life of the hub bearing are greatly improved, and production efficiency is very high and up to 20-30sec / unit; and according to product structure design provided by the invention, smooth implementation of spinning riveting assembly can be ensured, loss of raw materials can be effectively reduced, and remarkable effect of saving energy and materials is achieved.

Description

technical field [0001] The invention belongs to the technical field of assembly of automobile wheel hub bearing units, and relates to a spinning riveting assembly manufacturing method of an automobile wheel hub bearing unit in which the shaft end of the hub shaft is everted. Background technique [0002] During the assembly of traditionally designed automobile hub bearing units, the two inner rings are firmly connected to the transmission shaft with lock nuts. The disadvantage of this method is that it is necessary to twist the nut with a torque wrench during assembly to control the axial clamping force of the hub unit, and the control of the clamping force is inaccurate due to the manufacturing error of the parts in the unit. , the fluctuation of the preloading amount is large, which will cause the negative clearance of the bearing to deviate from the optimal value, reduce the life of the bearing, and greatly increase the dispersion of life; Due to vibration and other fact...

Claims

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Application Information

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IPC IPC(8): B21J15/12
Inventor 孟国飞肖耘亚黎桂华龙正英贾红玲吕建敏
Owner SHAOGUAN SOUTHEAST BEARING CO LTD
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