Method for processing differential shell between the heavy automobile bridges

A technology of differential case and processing method, which is applied in the direction of differential transmission, components with teeth, transmission box, etc., and can solve problems such as increased load of reduction gears, wear of gear teeth, and difficult size control

Inactive Publication Date: 2007-09-19
JIANGSU HENGYI IND TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0002] The inter-axle differential housing is an important connection for the differential movement of the middle and rear axles in a newly developed heavy-duty vehicle product. Once this part fails, it cannot rotate at a differential speed, which will cause the tires to slip and cause the drive The load of the reduction gear in the bridge increases, which intensifies the wear of the gear teeth and causes a series of failures, endangering the safety of driving
In the existing technology, in order to meet the requirements of axle lifting, the design of the parts is more complicated, the processing accuracy requirements of the inner spherical surface are stricter, and the requirements for the tooth shape of the end face are also higher. After local heat treatment, the deformation of the inner spherical surface is large and the size is very large. Difficult to control

Method used

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  • Method for processing differential shell between the heavy automobile bridges
  • Method for processing differential shell between the heavy automobile bridges

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Experimental program
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Embodiment

[0021] Embodiment: As shown in the accompanying drawings, the specific process steps of processing the inter-axle differential case are as follows:

[0022] 1. According to the size and precision of the workpiece, the selected equipment for the production of the differential case between bridges is determined as: ordinary lathes, CNC lathes, machining centers, and vertical drilling machines, and the blank drawings are signed with the forging plant to determine the blank forging Requirements and rough machining benchmarks;

[0023] 2. According to the processing equipment and workpiece requirements, design the processing plan and tooling fixture for each process, and determine the specifications and models of the tools used according to the hardness of the processed workpiece;

[0024] 3. Taking the rear end face 2 and the outer circle 1 of the workpiece as the benchmark, use a CA6140 ordinary lathe to rough turn the front end face 3 and the outer circle 4 of the tooth shape, l...

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Abstract

A machining method of differential carrier between heavy automobile axle belongs to auto parts technique field. At first, rough turning the front end face (3) and the tooth-shaped circumcircle (4) by the lathe; then finish turning the back end face (2) and the circumcircle (1); finish turning the tooth-shaped face taper angle and the front end face (3) shape; machining the pilot hole; machining tooth shape; heat treating the workpiece tooth shape, surface high-frequency quench treating; rough boring the cross axle holes C(8), G (9) and rough milling two parallel planes M(5), K(6); finish turning the back end face (2), circumcircle (1), spherical surface (10); finish boring the cross axle holes C(8), G (9) and finish milling two parallel planes M(5), K(6). Parts produced by the invention has high connecting performance, high strength, low oil consume and conservation of energy, the invention has advantages of high production efficiency and quality guarantee, low cost and so on.

Description

technical field [0001] The invention relates to a processing method for a differential case between axles of a heavy-duty automobile, belonging to the technical field of automobile accessories. Background technique [0002] The inter-axle differential housing is an important connection for the differential movement of the middle and rear axles in a newly developed heavy-duty vehicle product. Once this part fails, it cannot rotate at a differential speed, which will cause the tires to slip and cause the drive The load of the reduction gear in the bridge increases, which intensifies the wear of the gear teeth and causes a series of failures, which endangers the safe driving. In the existing technology, in order to meet the requirements of axle lifting, the design of the parts is more complicated, the processing accuracy requirements of the inner spherical surface are stricter, and the requirements for the tooth shape of the end face are also higher. After local heat treatment,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00F16H57/02F16H48/00F16H48/40
Inventor 张伟
Owner JIANGSU HENGYI IND TECH CO LTD
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