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Method for wedge pressure forming process gear wheel

A technology for forming and processing gears, applied in the field of non-cutting processing gears and press forming processing gears, can solve the problems of lack of high efficiency, high precision and low cost, and achieve the effect of saving materials, reducing production costs and long service life

Inactive Publication Date: 2008-08-27
皮开勇
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many reasons, the most important thing is the lack of high-efficiency, high-precision, and low-cost processing methods

Method used

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  • Method for wedge pressure forming process gear wheel
  • Method for wedge pressure forming process gear wheel
  • Method for wedge pressure forming process gear wheel

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 Shown in is the axial perspective shape of a toothed insert 1 designed according to the principle of the present invention. The front end of the tooth-shaped insert 1 is formed with a tooth-shaped cutting edge working surface 3, and its cross-sectional geometric parameters are exactly the same as the geometric parameters of the tooth valley cross-section of the processed gear; Rectangular strip guide 2 protruding from the surface. The shape of the working surface of the tooth-shaped insert 1 is consistent with the shape of the processed gear, and the gear profile on it can be the tooth surface of involute, cycloid, arc, spur tooth, helical tooth, bevel tooth Tooth shape.

[0032] Figure 2 ~ Figure 4 One embodiment of the fabrication of a non-holonomic gear according to the method of the present invention is described. Usually when processing a complete gear, the number of tooth-shaped inserts 1 is the same as the number of teeth of the processed gear. Whe...

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Abstract

The invention discloses a method for processing gear by inlaid-pressure formation, which comprises the following steps of: manufacturing tooth-shaped inserts with a number identical to that of tooth channels; manufacturing two insert bases with radial guide grooves on the inner sides; arranging the tooth-shaped inserts in the radial guide grooves of the insert bases to surround the to-be-processed surface of a gear blank workpiece; and applying a radial pressure to the workpiece at the periphery of the tooth-shaped inserts by pressurization equipment to make the workpiece inlaid in the front edge notch of the tooth-shaped inserts while extruding the workpiece, so that the surface of the gear blank material locally deforms to form the gear. The method has the advantages of simple steps, no need for rotating the workpiece, no cutting, one-step formation, accurate size precision, high efficiency, short manufacture time (only a few seconds), high yield and low cost. The tooth-shaped insert has simple structure and only bears the pressure, thus improving the service life. Accordingly, a gear shaft and an integral gear or a non-integral gear or a non-circular gear can be manufactured without cutting. The involute, cycloid as well as arc gear surface, and spur gear, helical gear as well as bevel gear can be achieved.

Description

technical field [0001] The invention relates to a gear manufacturing method, especially a method for machining gears without cutting, and more specifically, the invention relates to a method for machining gears by insert forming. technical background [0002] At present, there are two main processing methods for manufacturing gears: cutting and non-cutting. [0003] The methods of cutting gear teeth include: hobbing, slotting, milling, shaving, honing, pushing, broaching, grinding and other cutting processing methods. That is, hobbing, shaping, shaving, honing, milling, pulling and other equipment to process gears. [0004] Although the above-mentioned forming methods of cutting and manufacturing gears are all traditional and mature techniques, all metals become waste and waste materials, and most of them cannot process gear shafts and incomplete gears. [0005] The tooth milling method is to use a disc gear milling cutter with an indexing mechanism to process a single too...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/14B21C25/02
Inventor 袁正敏
Owner 皮开勇
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