Method for machining thin-wall shell part with inner and outer teeth

Abstract

The invention discloses a method for machining a thin-wall shell part with inner and outer teeth and relates to a plastic machining method. The method includes the following steps that firstly, slab blank is machined to be cup-shaped prefabricated blank, and the thickness of the wall of the cup-shaped prefabricated blank is equal to that of the wall of the thin-wall shell part with the inner and outer teeth; secondly, a pair of gears which are meshed mutually and are used for forming the inner teeth and the outer teeth of the thin-wall shell part with the inner teeth and the outer teeth respectively are manufactured. The gear for forming the inner teeth of the thin-wall shell part with the inner and outer teeth is a carrier roller, and the gear for forming the outer teeth of the thin-wall shell part with the inner and outer teeth is a compression roller; thirdly, the cup-shaped prefabricated blank is clamped on the carrier roller, and therefore the cup-shaped prefabricated blank and the carrier roller rotate synchronously, and meanwhile, the compression roller synchronously and oppositely rotates with the carrier roller and is fed in the radial direction close to the carrier roller to finish forming of the thin-wall shell part with the inner and outer teeth. According to the method for machining the thin-wall shell part with the inner and outer teeth, the technological steps are simple, the production cost is low, the machining efficiency is high, and high practicability is achieved.

Description

technical field [0001] The invention relates to a plastic processing method, in particular to a processing method for a thin-walled shell part with internal and external teeth. Background technique [0002] Thin-walled shell parts with internal and external teeth are widely used in mechanical transmission fields such as automobile automatic transmissions. The clutch hub of DCT automatic transmission is a typical thin-walled shell part with internal and external teeth. At present, there are two processing methods for this part: tooth forming and multi-pass deep drawing. The tooth punching process was invented by the Swiss GROB company. Its process is characterized by high forming precision, but the price of its special machine is very expensive, and the maintenance and maintenance costs of the equipment are high, resulting in high batch production costs of the tooth punching process; the multi-pass deep drawing process The surface quality of the produced parts is poor, the p...

AI Technical Summary

Problems solved by technology

The tooth punching process was invented by the Swiss GROB company. Its process is characterized by high forming precision, but the price of its special machine is very expensive, and the maintenance and maintenance costs of the equipment are high, resulting in high batch production costs of the tooth punching process; the multi-pass deep drawing process The surface quality of the produced parts is poor, the production efficiency is low, the mold life is low, and the production cost is high

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