A forging process for combining teeth

A technology combining teeth and technology, applied in the field of metal forging, can solve the problems affecting the accuracy of the tooth shape, the angle of the reverse taper and the lead-in angle, and the deformation of the lead-in angle of the small teeth, so as to improve the life of the die, reduce the shear force, and reduce the deformation. Effect

Active Publication Date: 2022-03-01
江苏智造新材有限公司
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AI Technical Summary

Problems solved by technology

During the back taper process of this method, due to the different deformations and different forces of each section of the small tooth, the lead-in angle of the small tooth is deformed, and the large diameter affects the tooth shape accuracy, back taper angle and lead-in angle.

Method used

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  • A forging process for combining teeth
  • A forging process for combining teeth
  • A forging process for combining teeth

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] The invention provides a forging process for combining teeth, including:

[0030] Step 1, the hot forging process, so that the coupling teeth are initially formed;

[0031] Step 2, finishing process, forging the lead-in angle of the tooth tip, the large diameter of the tooth and part of the involute tooth surface;

[0032] Step 3, reverse taper process, forging the involute tooth sur...

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Abstract

The invention relates to a forging process of a combined tooth, comprising: step 1, a hot forging process, so that the combined tooth is initially formed; step 2, a finishing process, forging the lead-in angle of the tooth tip, the large diameter of the tooth and the involute tooth surface; step 3 , reverse taper process, forging out the involute tooth surface chamfer; it is characterized in that, in the said finishing process, make part of the tooth large diameter and / or tooth surface produce less meat; in the said reverse taper process, combined with the involute The upper position on the open line tooth surface is consistent with the margin at the lower position. The forging process of the combined tooth provided by the present invention reduces the elastic deformation of the inverted cone process, improves the life of the inverted cone die, makes the size of the forging more conform to the size of the die, reduces the deformation of the lead-in angle of the forging, and improves the precision of the combined tooth.

Description

technical field [0001] The invention belongs to the technical field of metal parts forging, and in particular relates to a forging process for combining teeth. Background technique [0002] The combination gear of the automobile transmission, also known as the helical transmission gear with clutch gear, is used for the transmission and shifting of the automobile transmission, so that the shifting transmission produces different kinds of differences. With the development of automobile industry technology, precision forging technology has been adopted in large quantities for coupling teeth, and its products have high precision and good performance. [0003] The existing combined gear mainly adopts the following processes: billet making→hot forging→heat treatment→cleaning, lubrication→finishing→reversing taper. In the reverse taper process of this method, due to the different deformations and different forces of each section of the small tooth, the lead-in angle of the small t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21K1/30B21K7/12
CPCB21K1/30B21K7/12
Inventor 钱夏晨夏敏石小荣王述林周涛
Owner 江苏智造新材有限公司
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