Automobile steering column and positioning method of automobile steering column

Abstract

The invention relates to an automobile steering column and a positioning method of the automobile steering column. The automobile steering column comprises a steering mandrel, an upper protection pipe which sleeves the periphery of the steering mandrel and a lower protection pipe which sleeves the periphery of the steering mandrel; the lower part of the upper protection pipe sleeves the periphery of the upper part of the lower protection pipe; a first positioning hole is formed in a side wall of the upper protection pipe; a second positioning hole and a third positioning hole are formed in a side wall of the lower protection pipe; a fourth positioning hole is formed in a side wall of the steering mandrel; the first positioning hole and the second positioning hole can be communicated through adjusting relative positions of the upper protection pipe and the lower protection pipe; when the first positioning hole and the second positioning hole are communicated, the third positioning hole is located at the outer part of the upper protection pipe; and a positioning pin can penetrate through the third positioning hole from outside to inside and is inserted into the fourth positioning hole. The steering mandrel, the upper protection pipe and the lower protection pipe are protected by only one U-shaped pin, so that the changes of positions before the steering mandrel, the upper protection pipe and the lower protection pipe are assembled can be avoided.

Description

technical field [0001] The invention relates to a steering column, in particular to an automobile steering column and a positioning method for the automobile steering column. Background technique [0002] In the process of assembling the steering column assembly, an anti-rotation device is often required, and the anti-rotation device is used to ensure that the upper protection tube and the lower protection tube of the steering column do not slide relative to each other during the assembly process of the steering column assembly, such as the Chinese patent with the notification number CN205010304U The application proposes an anti-rotation device for the steering column, which solves the problem of how to avoid the position change of the upper and lower sleeves of the steering column before the assembly is completed. The anti-rotation device of the steering column includes an annular anti-rotation collar, the anti-rotation collar has a connecting portion extending along the ce...

AI Technical Summary

Problems solved by technology

[0003] However, most of the steering columns currently on the market are four-way adjustable steering columns. The characteristics of its structure are: one end of the steering lower shaft is matched with the steering mandrel in the upper protective tube through the full-tooth spline of the first fork assembly, and the lower steering shaft The other end of the shaft is matched with the pinion shaft of the steering gear through the missing tooth spline of the second yoke assembly, so that the lower steering shaft and the steering mandrel can rotate synchronously, but since the pinion shaft of the steering gear and the second yoke assembly are Missing teeth fit, and the existing anti-rotation device cannot limit the steering mandrel, and the second fork assembly can rotate during the assembly process, so that the assembly process of the steering gear pinion shaft and the second fork assembly cannot be fast and accurate Alignment and lack of teeth lead to assembly difficulties, affecting the production cycle, low production efficiency and high labor intensity

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