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Machining process of ball pin for automobile

A processing technology and ball pin technology, which is applied in the field of automotive ball pin processing technology, can solve problems such as poor bonding, shortening the shot blasting process, and reducing production efficiency, so as to improve production efficiency, save shot blasting time, and achieve a good surface The effect of roughness

Pending Publication Date: 2021-06-11
ANHUI ZHONGDING NVH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing ball pin processing technology includes degreasing, shot blasting, adhesive coating, vulcanization, deburring, galvanized nickel, packaging and other processes. After rubber vulcanization, the bonding is good, but when galvanized nickel treatment , it is easy to have poor bonding, and the shot blasting time of the ball pin skeleton is 40 minutes, which can obtain good bonding and reduce the production efficiency, so it is necessary to optimize and shorten the shot blasting process

Method used

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  • Machining process of ball pin for automobile
  • Machining process of ball pin for automobile
  • Machining process of ball pin for automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as Figure 1-2 As shown, the present embodiment provides a processing technology of a ball pin for automobiles, comprising the following steps:

[0023] a. Forging heat treatment: use 40Cr steel material, adopt forging and heat treatment to obtain the ball pin skeleton 1, so that its surface hardness reaches HRC25-30; the ball pin skeleton 1 includes the center ball pin body 11 and the ball pin body 11 on both sides end cap 12;

[0024] b. Finishing: the ball pin body 11 is turned into an arc surface, and the end cover 12 is turned into a cylindrical surface; wherein, the ball pin body 11 is cylindrical, and the arc surface is located at the central axial periphery of the ball pin body 11;

[0025] c. Milling hole: Mill out the mounting hole 13 on the end cover 12;

[0026] d. Shot blasting: Use a shot blasting machine to perform shot blasting treatment on the ball pin frame 1, and the shot blasting time is 6-10 minutes;

[0027] e. Adhesive coating, vulcanizati...

experiment example

[0029] In the prior art, the shot blasting time is 40 minutes, and the roughness of the arc surface / adhesive surface and the plane roughness at the mounting hole are tested before and after shot blasting. The specific test results are shown in Table 1:

[0030] Table 1

[0031]

[0032] Using the scheme of the embodiment of the present invention, the roughness of the arc surface / adhesive surface and the plane roughness at the mounting hole were detected before and after shot blasting in multiple batches. The specific test results are shown in Table 2:

[0033] Table 2

[0034]

[0035] It can be seen from the above table that the roughness RZ of the arc surface / adhesive surface and the plane roughness RZ of the hole after 8 minutes of shot blasting in the three batches are close to or even better than those after 40 minutes of shot blasting. Moreover, the original shot blasting time is 40 minutes, and it takes 5 minutes to assist loading and unloading. A shot blasting m...

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Abstract

The invention provides a machining process of a ball pin for an automobile, and relates to the technical field of ball pin machining. The machining process of the ball pin comprises the following steps of forging and heat treatment, wherein a 40Cr steel material is adopted, forging and heat treatment are adopted to obtain a ball pin framework, and the surface hardness of the ball pin framework reaches HRC25-30; finish machining, wherein a ball pin body is turned to form an arc surface, and an end cover is turned to form a cylindrical surface; hole milling, wherein a mounting hole is milled in the end cover; shot blasting, wherein shot blasting treatment is carried out on the ball pin framework by using a shot blasting machine; and adhesive coating, vulcanizing and flash removing, wherein the outer portion of the ball pin body is coated with an adhesive, rubber adheres to the surface of the ball pin body, and flashes are removed after high-temperature vulcanizing to obtain a rubber sleeve. According to the machining process of the ball pin for the automobile, after machining, the roughness value of the arc surface / bonding surface and the roughness value of the plane at the hole are close to or even better than the roughness value in the prior art; and the shot blasting time is saved, the good plane roughness is achieved, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of ball pin processing, in particular to a process for processing ball pins for automobiles. Background technique [0002] The ball stud is a key component to ensure the stability of the car's handling, smoothness, comfort, safety, and correct and accurate driving of the car. It is also called a ball hinge and a ball joint. The existing ball pin processing technology includes degreasing, shot blasting, adhesive coating, vulcanization, deburring, galvanized nickel, packaging and other processes. After rubber vulcanization, the bonding is good, but when galvanized nickel treatment , Poor bonding is prone to occur. The shot blasting time of the ball pin skeleton is 40 minutes, and good bonding can be obtained, which reduces the production efficiency. Therefore, it is necessary to optimize and shorten the shot blasting process. Contents of the invention [0003] The invention aims at the deficiency of the pri...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 何仕生黄四洋储葵
Owner ANHUI ZHONGDING NVH
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