Machining method of injection molding face gear electrode and injection molding face gear

Abstract

The invention provides a machining method of an injection molding face gear electrode and an injection molding face gear. A face gear transmission principle is used, a three-dimensional vector diagram of the face gear is generated in a generating method through computer-assisted software, then the injection molding face gear electrode is machined through a numerical control lathe, a mold cavity of the face gear is machined in an electric spark discharge technology, and accordingly the face gear is formed by infection molding. Due to the fact that transmission data of the face gear and a cylinder gear is simulated in a computer, the machined infection molding face gear completely meets face gear transmission requirements in practice, data is accurate, the face gear is fixed on a table face to be machined through the numerical control lathe, deformation cannot happen, and therefore the machined injection molding face gear electrode is high in accuracy and low in transmission noise. What is important is that technologies such as gear inserting or gear rolling or gear grinding are not used in machining of the injection molding face gear electrode, so that special knives are of no need, and cost is greatly lowered.

Description

【Technical field】 [0001] The invention relates to a processing method of an electrode of an injection-molding surface gear and an injection-molding surface gear, in particular to a three-dimensional image of an electrode of an injection-molding surface gear processed by a generating method, and then the electrode of the injection-molding surface gear is processed by a numerical control machine tool, and the processed injection molding The method of injecting the face gear electrode into the gear cavity through electric discharge machining, and then injecting the face gear. 【Background technique】 [0002] Face gear transmission is a gear transmission in which a cylindrical gear meshes with a face gear. When the teeth of the face gear are distributed on a circular plane, the bevel gear is the face gear, so it is generally called the face gear transmission. The tooth surface geometry of the face gear is no longer the common involute tooth surface or other common tooth surfaces...

AI Technical Summary

Problems solved by technology

As for the processing technology of face gears, face gears can be processed by shaping, hobbing and grinding, but only a few technical materials or related patents disclose the methods of shaping and hobbing in China. For example, the Chinese patent application number is 201110053078.6, the name is a face gear CNC hobbing processing control device and processing control method, and the Chinese patent application number is 201010269920.5, the name is a face gear hobbing processing equipment, all of which are processed by hobbing. To process face gears, only Zhu Rupeng's team from Nanjing University of Aeronautics and Astronautics has conducted preliminary research on the gear shaping technology and grinding principles of face gears. Processing, the precision of the processed face gear is very low, and the practicability is not strong

[0004] Whether it is gear shaping or hobbing, it is necessary to use special software to drive the face gear forming tool during processing, and each modulus of face gear must correspond to a forming tool, so purchase these special software and forming tools The cost of processing the face gear is high. On the other hand, due to the pressure of the forming tool on the face gear blank, the face gear will be slightly deformed, resulting in low precision of the processed face gear. If the precision and hardness of the face gear are to be improved, it is necessary to For gear grinding, the process is complicated and the equipment is more expensive

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