Production method of new energy automobile motor aluminum shell

Abstract

The invention relates to a production method of a new energy automobile motor aluminum shell. In the method, the following hardware devices are included: an outer shell die device, an inner shell diedevice and an end cover die device, wherein the outer shell die device and the inner shell die device are composed of a punch fixing plate, a punch, an upper die plate, a locking block, sliding blocks, a die core, core-pulling oil cylinders, a die frame, a die foots, a lower die plate, upright cylinders and the like; and the end cover die device is composed of a second upper die plate, an upper die frame, an upper die core, a lower die core, a lower die frame, a second die foot, a second lower die plate, a second sliding block, a second locking block, a second core-pulling oil cylinder, a locking block oil cylinder and the like. A motor aluminum outer shell, a motor aluminum inner shell and a motor aluminum end cover are obtained through a production process flow of raw material preparation, feeding, forging and pressure maintaining, and product forming. According to the production method, the production efficiency of the motor aluminum shell can be obviously improved, the yield reaches 95% or more, the energy consumption of casting is greatly reduced, the defects of pores and shrinkage few occur in the motor aluminum shell, the structure is compact, no crack is generated, the mechanical performance is good, and the stability is good.

Description

technical field [0001] The invention relates to the field of new energy vehicle motor manufacturing, in particular to a production method or production method for a new energy vehicle motor housing. Background technique [0002] An electric vehicle refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and conforming to the requirements of road traffic and safety regulations. In recent years, pure electric vehicles as new energy vehicles have received strong support from national policies, and their development trend is getting better and better. At present, in order to make the drive motors used in electric vehicles or electric vehicles lighter in weight, faster in heat dissipation, and better in reliability, a large number of motor housings are cast with aluminum materials. However, compared with the shell casted by the original process, its shortcomings and limitations are also obvious, mainly reflected in: shrinkage porosit...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above problems and deficiencies, and to provide a production method for the aluminum casing of the motor of a new energy vehicle, which can significantly improve the production efficiency of the aluminum casing of the motor, and the good product rate can reach more than 95%. , and the energy consumption of casting is greatly reduced, the internal pores of the motor aluminum shell have fewer shrinkage defects, dense structure, no cracks, good mechanical properties and good stability

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