Method for machining front shell of differential mechanism

A processing method and differential technology, applied in the direction of differential transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of high production cost, large compensation value of the front case of the differential, corporate and social losses, etc. , to achieve the effect of reducing production costs, improving product quality and service life

Active Publication Date: 2014-03-19
JIANGSU HENGYI IND TECH CO LTD
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Problems solved by technology

The front case of the differential produced by the existing processing method is easy to break, which seriously endangers the driving safety and will bring great losses t

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  • Method for machining front shell of differential mechanism

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention will be further described:

[0026] Referring to the accompanying drawings, a method for processing a differential front case is characterized in that it includes the following steps: 1) rough forging;

[0027] 2) On the CNC lathe, use three claws to clamp the outer circle 13 of the big head, punch the centering hole, and rough turn: the end face of the small head 1, the outer circle and end face 3 of the small head, the outer circle of the spline 4, the bearing gear and the end face 5 , outer circle A and end face 6, outer circle B and end face 8, bevel A10, end face A12 and corresponding arcs and chamfers, do not keep the centering hole when controlling the length; check with vernier caliper, depth gauge and R gauge according to the process diagram ; 3) On the CNC lathe, use three claws to clamp the outer circle A, rough turning: the end face of the big head 20, the outer circle of the big head ...

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Abstract

A method for machining a front shell of a differential mechanism includes the following steps of (1) blank forging, (2) rough turning of a small head, (3) rough turning of a large head, (4) quenching and high temperature tempering, (5) finish turning of the small head, (6) finish turning of the large head, (7) drilling and tapping, (8) spline rolling, (9) surface hardening, (10) external grinding, (11) drilling of a lock pin hole, (12) drilling of an oil hole, (13) drilling of a crossed hole of the small head, (14) assembling, (15) boring of a crossed hole of the large head, (16) chamfering and washing, and (17) inspecting and storing a finished product according to a product drawing. According to the method, quality of the product is improved, the service life of the product is prolonged, production cost is reduced, and the method is used for production of an automobile accessory.

Description

technical field [0001] The invention relates to a processing method for auto parts, in particular to a processing method for a front shell of a differential gear. Background technique [0002] The differential front case is one of the important parts of the automobile differential. The dimensional tolerance accuracy, shape and position tolerance accuracy and heat treatment of the differential front case have a great influence on the interchangeability, assembly performance and service life. The differential front case produced by the existing processing method is easy to break, which seriously endangers the driving safety and will bring great losses to the enterprise and the society. The monthly compensation value of the differential front case is relatively high, and the production cost is relatively high. Fracture of differential front housings has become an urgent problem in the industry. Invention content: [0003] The purpose of the present invention is to p...

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00F16H48/40F16H57/037
Inventor 鞠小平万小民张伟刘伟陈刚
Owner JIANGSU HENGYI IND TECH CO LTD
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