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An automobile steering knuckle structure and its processing technology

A technology of automobile steering knuckle and processing technology, which is applied in the field of automobile steering knuckle structure, can solve problems such as aluminum chip overflow, and achieve the effects of easy control, improved quality, and reduced pressing force

Active Publication Date: 2015-12-30
威海伯特利汽车安全系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical defect of aluminum shavings overflowing in the assembly process of the existing steering knuckle and bushing, and further provide an automobile steering knuckle structure with scientific and reasonable structural design, easy assembly, and thus improving the quality and performance of the entire steering knuckle , and also provides the processing technology of the steering knuckle structure

Method used

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  • An automobile steering knuckle structure and its processing technology
  • An automobile steering knuckle structure and its processing technology
  • An automobile steering knuckle structure and its processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An automobile steering knuckle structure, comprising a steering knuckle body 1, a bushing hole 3 for inserting a bushing 2 is opened on the steering knuckle body 1, and the hole chamfer of the bushing hole 3 is designed to be 30 degrees In the rounding structure 4, the rounding radius R is 2mm, and the chamfering width dimension is 2mm.

[0024] A processing technology for an automobile steering knuckle structure includes the following process steps:

[0025] 1), clamping

[0026] Clamp the steering knuckle on the vertical machining center and call out the tools used for chamfering;

[0027] 2), processing

[0028] According to the structure and quantity of the tool blades, as well as the processing characteristics and the requirements of the machining center, control the spindle speed of the machining center to 3000 or 4000r / min, and control the cutting speed of the chamfering tool to 300-600m / min, and finally get the chamfer angle It is 30 degrees, the rounding radius is R2, ...

Embodiment 2

[0032] The difference between this embodiment and embodiment 1 is

[0033] The hole chamfer of the bushing hole 3 is designed as a 28-degree rounded corner structure 4, the rounded corner radius is R2, and the chamfered width dimension is 2mm.

Embodiment 3

[0035] The difference between this embodiment and embodiment 1 is

[0036] The hole chamfer of the bushing hole 3 is designed as a 35-degree rounded corner structure 4, the rounded corner radius is R2, and the chamfered width dimension is 2 mm.

[0037] In this embodiment, the chamfering structure of the bushing hole is changed from the original 45 degrees to 28-35 degrees, and the rounding treatment with a radius of 2 is added. The improvement makes the actual bushing pressing force range during assembly change from the previous 15-22KN is reduced to 13-17.5KN, the bushing can be smoothly pressed into the steering knuckle bushing hole, and there is no aluminum chip overflow, which improves the assembly efficiency of the steering knuckle structure and reduces the defect rate and processing cost of the product. Improve the quality and performance of the entire steering knuckle structure.

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PUM

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Abstract

The invention relates to the technical field of steering knuckles, in particular to an automobile steering knuckle structure. The automobile steering knuckle structure comprises a steering knuckle body (1). A bushing hole (3) used for embedding a bushing (2) is formed in the steering knuckle body (1). The automobile steering knuckle structure is characterized in that a chamfer of an orifice of the bushing hole (3) is designed into a fillet structure (4) of 28-35 degrees. The automobile steering knuckle structure has the advantages that the bushing can be pressed into the bushing hole of the steering knuckle body smoothly without overflow of aluminum skimmings during assembly, so that assembly efficiency of the steering knuckle structure is improved, product reject ratio and processing cost are reduced and quality and usability of the whole steering knuckle structure are improved.

Description

Technical field [0001] The invention relates to an automobile steering knuckle structure, and belongs to the technical field of automobile steering knuckle structures. Background technique [0002] The steering knuckle is one of the main parts on the steering axle of the car, which can make the car run stably and sensitively transmit the driving direction. The function of the steering knuckle is to bear the front load of the car, support and drive the front wheel to rotate around the king pin to turn the car. In the driving state of the car, it is subjected to variable impact loads, therefore, it is required to have high strength. [0003] The steering knuckle bushing of an automobile is a key component assembled in the steering knuckle, which plays the role of shock absorption, buffering and positioning. The wear of the steering knuckle bushing will lead to poor positioning of the steering knuckle, which will lead to the steering accuracy of the vehicle when driving. [0004] At pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D7/18
CPCB62D7/18
Inventor 杨卫东陈相艳李石炎
Owner 威海伯特利汽车安全系统有限公司