Forming method of automobile generator claw pole

An automotive generator and claw pole technology, applied in the manufacture of motor generators, engine components, wheels, etc., can solve the problems of high man-hours and energy consumption, poor surface quality of parts, long process steps, etc., to improve capacity and forming quality. Good, good size performance effect

Inactive Publication Date: 2010-06-02
海盐猛凌汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In short, the existing production technology of automobile generator claw poles still has problems such as long process steps, high impact force, poor surface quality of parts, short mold life, large waste of materials, high man-hours and high energy consumption.

Method used

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  • Forming method of automobile generator claw pole
  • Forming method of automobile generator claw pole
  • Forming method of automobile generator claw pole

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Experimental program
Comparison scheme
Effect test

Embodiment

[0042] see Figure 1-Figure 20 , The invention includes blanking, heating, upsetting, shunt type forward extrusion hot pre-forging, reflow type forward extrusion hot final forging, annealing, shot blasting, forward extrusion finishing and finish turning. Blanking, heating, upsetting, annealing, shot blasting, forward extrusion finishing and finish turning in the present invention are all prior art. In the present invention, the split-flow forward extrusion hot pre-forging and the reflow type forward extrusion hot final forging are respectively realized by the hot pre-forging die and the hot final forging die, and both the hot pre-forging die and the hot final forging die are closed precision forging dies , and the hot pre-forging die matches the hot final forging die.

[0043] The hot pre-forging die includes a hot pre-forging die and a hot pre-forging punch, and the hot pre-forging die matches the hot pre-forging punch. The hot pre-forging die comprises a hot pre-forging di...

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Abstract

The invention relates to a forming method of an automobile generator claw pole, in particular to a flash-free closed precision forging method of the automobile generator claw pole. The forming methodof the automobile generator claw pole comprises the steps: cutting material, heating, upsetting, annealing, shot blasting, direct-extrusion and finishing, fine turning and processing, and the like. The forming method is characterized in that: the method also comprises two steps of a divided-flow direct-extrusion hot pre-forging and a return-flow direct-extrusion hot finish forging which are between the steps of upsetting and annealing and realized by a hot pre-forging die and a hot finish forging die respectively. With novel conception, the automobile generator claw pole produced with the forming method is free of flash and burrs and has high forming quality of the six claws as well as clear and full edges and corners. Meanwhile, the forming method has the advantages of low forming loads,long service life of dies, low energy consumption in production and saving production materials and production time.

Description

Technical field: [0001] The invention relates to a forming method of a claw pole of an automobile generator, in particular to a flash-free closed-type precision forging method for the claw pole of an automobile generator. Background technique: [0002] The claw pole is the key component of the automobile generator and the main component used to form the rotating magnetic field. Its forming accuracy will directly affect the power generation capacity of the generator, the waveform of the induced electromotive force and the performance of the whole vehicle. The forming technology of the claw pole includes casting, sheet blanking and bending, open hot die forging and hot reverse extrusion forming technology. Using the casting method to manufacture claw poles has poor electromagnetic properties; using punching and bending methods to manufacture claw poles has cumbersome procedures, low material utilization, high production costs, and only thin-plate claw poles have great limitati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B21J13/02B21K1/76H02K15/00
CPCB21K1/28
Inventor 辛选荣汪曙青陈雪忠方泉水刘汀林雪
Owner 海盐猛凌汽车配件有限公司
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