Axial riveting clamping structure and clamping process

A riveting and axial technology, which is applied to the steering column and the steering control installed on the car, etc., can solve the problems of increasing the weight of the assembly and increasing the driving cost of the car, and achieve weight reduction of the assembly, good riveting effect, and simple operation Effect

Active Publication Date: 2015-12-23
青岛即东汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of set nuts and small bolts increases the weight of the assembly and increases the cost of driving the car

Method used

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  • Axial riveting clamping structure and clamping process
  • Axial riveting clamping structure and clamping process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: An axial riveting and clamping process. The upper and lower ends of the steering column tube of an automobile are respectively provided with an upper bearing groove and a lower bearing groove. The steering shaft is sleeved in the steering column tube through the upper and lower bearings. A plurality of riveting grooves are evenly distributed on the end surface of the lower bearing groove, and the riveting machine is used to ream each riveting groove so that the inner wall of each riveting groove moves radially toward the center of the circle, so that the lower bearing is clamped and fixed in the lower bearing groove. At the same time, the outer ring of the lower bearing and the lower bearing groove are interference fit. Considering that the axial length of the steering shaft 1 will change with the temperature, the upper bearing can move axially in the upper bearing groove, and the upper bearing has no positioning in the axial direction and is designed to mo...

Embodiment 2

[0019] Example 2: see figure 1 and figure 2 , an axial riveting clamping structure, the upper end and the lower end of the steering column tube 3 are respectively set for the upper bearing groove and the lower bearing groove, the upper bearing 2 is installed in the upper bearing groove, the lower bearing 4 is installed in the lower bearing groove, the steering shaft 1 is sleeved in the steering column tube 3 through the upper and lower bearings, and the lower end of the steering shaft 1 is also connected with a universal joint fork 5 .

[0020] The axial width of the groove of the upper bearing 2 is larger than the width of the outer ring of the upper bearing, so the upper bearing has no positioning in the axial direction and is designed for swimming. to swim.

[0021] There is an interference fit between the outer ring of the lower bearing and the lower bearing groove. And three or six riveting grooves 8 are uniformly arranged on the end face of the lower bearing groove, ...

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PUM

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Abstract

The invention discloses an axial riveting and clamping structure and a clamping process thereof. A steering spindle penetrates through a steering column tube through an upper bearing and a lower bearing; the outer ring of the lower bearing is in interference fit with the steering column tube; a stepped groove is processed on the inner surface of the steering column tube and is used for positioning the lower bearing. The axial length size of the shaft is changed along with temperature, so that the upper bearing is not positioned axially and has a free design. Because the clamping effect caused by the interference fit is not reliable enough, multiple grooves are formed on the circumference at the tail end of the steering column tube, and the grooves are extruded by using a riveting machine, so that the lower bearing is riveted and is firmly clamped, and the service performance can be guaranteed in a vibrating environment and the like. The parts are prevented from being tightened by adding the parts, the cost can be saved, and the structure is simple.

Description

technical field [0001] The invention relates to the technical field of axial tightening of an automobile steering shaft, in particular to an axial riveting and clamping structure and a clamping process of an automobile steering shaft. Background technique [0002] The traditional steering shaft is axially tightened, and a set nut is often used. At the same time, a small bolt is used to lock the set nut to prevent loosening during the operation of the steering column and cause an accident. Although this kind of axial tightening method is reliable, the structure is complicated, which increases the production cost. At the same time, due to the narrow space when installing the set nut, it is relatively difficult to install and consumes more manpower and material resources. There is also the possibility of loosening the small bolts used to lock the lock nuts, which also increases the stability of the entire assembly. The use of set nuts and small bolts increases the weight of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D1/16
Inventor 李贵林王洪家迟进克孙振杰
Owner 青岛即东汽车零部件有限公司
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