Machining process for die-casting aluminum alloy speed reducer shell

Abstract

The invention relates to a machining process of a die-casting aluminum alloy speed reducer shell, the speed reducer shell comprises a front shell and a rear shell, a process boss is subjected to finish milling firstly, then a process hole is subjected to finish drilling, and finally a combined positioning large surface is subjected to pre-milling. In this way, the flatness of 0.03 MM of the combined installation face of the front shell and the rear shell of the speed reducer and the position degree requirement of assembling holes of the front shell and the rear shell of the speed reducer within phi 0.04 can be met. When the front shell is machined, a plurality of sections of composite diamond guide bar cutters are used for machining bearing mounting holes at the same time, then the functions of online measurement and automatic coordinate correction and compensation of a machine tool are adopted, then D246.5 reducer front shell bearing mounting holes are machined, and the coaxiality requirement of phi 0.04 is met. When the rear shell is machined, the reverse boring machining tool is used for conducting reverse boring machining on the oil seal hole, and the requirement for the coaxiality of phi 0.04 is met.

Description

technical field [0001] The invention belongs to the technical field of die-casting aluminum alloy mechanical processing, and mainly relates to a processing technology of a die-casting aluminum alloy reducer casing. Background technique [0002] At present, with the rapid development of new energy vehicles, the product structure of automotive die-casting aluminum alloy parts is relatively complex and the machining accuracy is high. When machining the front and rear housings of the reducer, the joint surfaces and bearing holes of the reducer are required to have high precision. The degree cannot be guaranteed, and the processing is unstable. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a processing technology for a die-casting aluminum alloy reducer housing, so as to solve the problems raised in the above-mentioned background art. [0004] In order to achieve the above purpose, the present invention provides the following technical s...

AI Technical Summary

Problems solved by technology

When processing the front shell and rear shell of the reducer, the joint surface of the reducer front shell and the rear shell and the precision of the bearing hole are required to be high. The flatness of the processing area is required to be 0.03MM, and the cylindricality, coaxiality, and position The degree cannot be guaranteed, and the processing is unstable

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