Shape control and performance control manufacturing process of claw pole for hybrid excitation generator

Abstract

The invention relates to the technical field of forming and manufacturing of claw poles for hybrid excitation generators, in particular to a shape control and performance control manufacturing processof a claw pole for a hybrid excitation generator. The method comprises the following steps of (1) discharging, (2) heating, (3) hot forging, (4) heat treatment, (5) descaling treatment, (6) cold finishing, (7) cutting machining and (8) destressing treatment. The procedures of heating, hot forging and heat treatment are controlled through a bus to form a continuous production line to achieve automatic production, and multi-station high-speed precision hot forging equipment is adopted in hot forging; the procedures of blank upsetting, pre-forming, finish forming and edge cutting are integrated,on the premise of guaranteeing that the size and shape of the claw pole meet the drawing requirements, the magnetic conduction performance of the claw pole is controlled and optimized, and thereforethe production quality stability of the claw pole is greatly improved; and meanwhile, further improvement of the comprehensive performance of the hybrid excitation generator can be promoted easily.

Description

Technical field [0001] The invention relates to the technical field of forming and manufacturing claw poles for hybrid excitation generators, in particular to a shape-controllable manufacturing process of claw poles for hybrid excitation generators. Background technique [0002] The claw pole for hybrid excitation generator is a new type of claw pole developed based on the high power and light weight of the automobile alternator. See the accompanying drawings in the manual. The difference from the conventional claw pole is that there are left on both sides of the claw pole. Magnet inlay slot, permanent magnets can be inlayed in the magnet inlay slot during assembly and use, so that the output power of the alternator can be greatly increased without increasing the volume. [0003] Conventional claw pole early manufacturing processes include casting forming, sheet metal stamping forming and cold extrusion forming. Among them, the casting forming process is prone to magnetic leakage d...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: in order to solve the existing claw pole manufacturing process for hybrid excitation generators, cold correction and various cutting processes need to be added after the blank is basically formed, which obviously increases the residual stress of the claw pole blank, and then The problem of dimensional stability and magnetic permeability of the finished claw pole is obviously reduced. The invention provides a shape-controlled manufacturing process of the claw pole for a hybrid excitation generator, which includes the following steps: 1) blanking; 2) heating; 3) hot forging; 4) heat treatment; 5) descaling treatment; 6) cold finishing; Production and hot forging adopt multi-station high-speed precision hot forging equipment, which integrates pier blank, preforming, final forming and trimming processes, and realizes the magnetic conductivity of claw poles under the premise of ensuring that the claw pole size and shape meet the requirements of the drawings The control and optimization of the energy can greatly improve the stability of the production quality of the claw poles, and at the same time help to promote the further improvement of the comprehensive performance of the hybrid excitation generator

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