Heavy automobile two-segment drive bridge set collar processing method

Abstract

The invention discloses a machining method of two-section drive bridge space ring for a heavy automobile, belonging to automobile fitting technique field. At first, determining required apparatus and model drawing for machining; based on the apparatus for machining, designing positioning fixtures of each procedure and required special tool; rough turning a front end face (4) and a half outer circle B(2) by a digital control lathes; rough turning a back end face (4) and a half outer circle A(1) by a digital control lathes; heat treating the workpiece outer circle, high frequency quench treating surface; turning groove by a lathe and chamfering edges; fine turning a middle inner plane D(5), an inner plane G(6) and an inner hole (7) by the digital control lathes and the special tool; machining the outer circle by the grinder. Using parts produced by the invention can reduce friction force, with high sealing performance, and while with less oil consume and conservation of energy; the invention has advantages of high production efficiency and quality guarantee and low cost.

Description

technical field [0001] The invention relates to a processing method for a spacer ring of a double-joint drive axle of a heavy-duty vehicle, and belongs to the technical field of auto parts. Background technique [0002] The double-section drive axle spacer is an important seal in a newly developed heavy-duty vehicle product. Once this part fails, it will cause the internal gears and bearings of the drive axle to lose oil, which will aggravate the wear and tear of the parts and cause early damage. At the same time, once the lubricating oil If it flows into the wheel reducer, the oil level of the wheel reducer will rise, the oil seal will be damaged, and it will flow into the brake drum, causing poor braking and endangering safe driving. In the existing technology, in order to meet the requirements of axle lifting, the design of parts is relatively complicated, the requirements for the perpendicularity between the inner hole and the end surface, and the coaxiality between the ...

AI Technical Summary

Problems solved by technology

[0002] The double-section drive axle spacer is an important seal in a newly developed heavy-duty vehicle product. Once this part fails, it will cause the internal gears and bearings of the drive axle to lose oil, which will aggravate the wear and tear of the parts and cause early damage. At the same time, once the lubricating oil If it flows into the wheel reducer, the oil level of the wheel reducer will rise, the oil seal will be damaged, and it will flow into the brake drum, causing poor braking and endangering safe driving.

In the existing technology, in order to meet the requirements of axle lifting, the design of parts is relatively complicated, the requirements for the perpendicularity between the inner hole and the end surface, and the coaxiality between the inner hole and the outer circle are relatively strict, and the dimensional accuracy of the hole and the cylindrical shape of the outer circle are relatively strict. The precision requirements are also high, and the shape and position tolerances are difficult to control

Images