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Car transmission shaft machining technology

A processing technology and transmission shaft technology, applied in the field of auto parts manufacturing, can solve problems such as technological backwardness, and achieve the effect of improving internal and external quality

Inactive Publication Date: 2015-06-17
LIUZHOU JUNJIE AUTO PARTS MFG
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Automobile drive shafts not only require high internal quality, but also pursue higher and higher surface quality. Among them, the phosphating process is a common technology in the existing technology, but the technology is backward

Method used

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Examples

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Embodiment Construction

[0007] A process for processing an automobile transmission shaft, comprising the following steps: forging, selecting a low-carbon alloy steel material, reserving a margin according to the requirements of the drawing, and forming by forging; normalizing, performing normalizing treatment on the forged and formed product, and refining the bad structure, Eliminate the banded structure and Widmansite formed by forging, use high temperature normalizing at 905°C-915°C during the normalizing process; rough turning, remove a large amount of allowance, preliminarily shape the outer circle and end face, and reserve the unilateral processing of the product The margin is 0.75-1mm, and the roughness is Ra6.3; finish turning, the outer circle and end face are formed according to the technical requirements, and the surface roughness of the finished product is Ra1.6; deep holes are drilled, and the drive shaft is drilled deep hole; gear hobbing, using a hobbing machine to roll out the spline of...

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Abstract

The invention provides a car transmission shaft machining technology which comprises the steps of forging, normalizing, rough turning, finish turning, deep hole drilling, hobbing, oil hole drilling, and then a series of washing of degreasing pretreatment, degreasing, hot water washing, cold water washing, activating treatment, ultrasonic rinsing, chemical agent washing and drying. A washed transmission shaft is clamped to a rotor of a machine tool, laser is used for carrying out irradiating with the intersection angle of 78-85 degrees on the annular surface of a rotating transmission shaft, when the temperature of a light spot center point of the annular surface which is hardened by heating reaches 1000-1200 DEG C, irradiating is over, and hardening is finished. Then, an outer circle grinding procedure is carried out, an outer circle which needs matching is ground to be in a certain shape, and finally a finished product is obtained. According to the car transmission shaft machining technology, the inner quality and the outer quality of the transmission shaft are both improved.

Description

technical field [0001] The invention relates to a processing technology of an automobile transmission shaft, which belongs to the technical field of automobile parts manufacturing. Background technique [0002] Automobile transmission shafts are subjected to impact, alternating bending fatigue loads and torques during work, and the materials are required to have sufficient bending strength, shear strength and good toughness. Automobile drive shafts not only require high internal quality, but also pursue higher and higher surface quality. Among them, the phosphating process is a common technology in the existing technology, but the technology is backward. Contents of the invention [0003] The invention provides a processing technology of an automobile drive shaft, which is a novel manufacturing processing technology, and the surface quality is further improved. [0004] In order to solve the above-mentioned problems, the technical solution adopted by the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 王俊杰
Owner LIUZHOU JUNJIE AUTO PARTS MFG
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