A method for making automobile tie rod joints

An automobile tie rod and positive extrusion technology, which is applied in the field of auto parts production, can solve the problems of high dimensional accuracy and surface finish, difficult to control product surface finish, and high cost of parts manufacturing, so as to improve mechanical properties, increase labor productivity, The effect of reducing raw materials and processing man-hours

Active Publication Date: 2016-12-28
SHANGHAI UNIV OF ENG SCI
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Problems solved by technology

These two processing methods have the following problems: the consumption of raw materials is large, the labor productivity is not high, the mechanical properties of the parts are poor, the manufacturing cost of the parts is high, it is difficult to process parts with complex shapes, and it is difficult to obtain high dimensional accuracy and surface finish. Wait
[0004] The Chinese patent with the application number 201210310771.1 discloses a production process of an automobile steering tie rod joint assembly, including a series of processes such as raw material preparation, turning, milling and planing pliers processing of raw materials, heat treatment, ultrasonic flaw detection and subsequent inspection, which are very complicated and Difficulty controlling the surface finish of the resulting product

Method used

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  • A method for making automobile tie rod joints
  • A method for making automobile tie rod joints
  • A method for making automobile tie rod joints

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Embodiment

[0028] A method for making a tie rod joint of an automobile, which adopts three extrusion processes to complete the forming process of the tie rod joint of an automobile, comprising the following steps:

[0029] 1. Formulate the blank: 1) Take the blank according to the part drawing, and leave a certain gap for the convenience of loading the workpiece); 2) Re-use the three-step forming method for design and check; 3) Calculate the radial dimension of the blank, Use the "Forward Extrusion Carbon Steel Permissible Deformation Table" to provide the lower limit of the transition interval. Since the pressure, friction and temperature on the mold during forward extrusion are much greater than those during upsetting, it is in a relatively harsh working environment. Down. Therefore, within the allowable range, select the diameter of the blank that has a small amount of deformation during forward extrusion. 4) Re-check the deformation of each process, including forward extrusion, upse...

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Abstract

The invention relates to a method for manufacturing automobile tie-rod joints, which adopts three extrusion processes to complete the forming process of the automobile tie-rod joints, comprising the following steps: (1) making the blank of the automobile tie-rod joints according to the permissible phenotype requirements of forward extrusion; (2) ) performing forward extrusion processing on the blank of the automobile tie rod joint; (3) performing upsetting treatment on the workpiece after the forward extrusion treatment; (4) performing reverse extrusion treatment on the tail of the upsetting workpiece to obtain the automobile tie rod joint. Compared with the prior art, the invention has the advantages of low raw material consumption, improved mechanical properties, dimensional accuracy and surface finish of the manufactured automobile tie rod joints, and the like.

Description

technical field [0001] The invention relates to a method for manufacturing automobile parts, in particular to a method for manufacturing automobile tie rod joints. Background technique [0002] The car steering tie rod joint assembly is located in the car steering system, between the steering gear and the steering knuckle arm, moves up and down with the tires, and transmits the steering force of the steering wheel to the tires through the transmission and swing of the joints. During the use of the car, loose frames often appear between the joint and the spherical shell due to wear and tear. This situation will affect the stability of the car in the slightest, and will cause the vehicle to malfunction and cause serious accidents. The joints and ball studs play a decisive role in the quality of the automotive steering tie rod joint assembly. [0003] Generally, tie rod joints are usually processed by cutting hot-rolled round steel bars, and can also be made by cutting and pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C23/00B21C23/04B21C23/20
Inventor 宋新萍王佼宋仕鹏董一杰
Owner SHANGHAI UNIV OF ENG SCI
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