Forming method of bevel-gear forging tooth-die

A processing method and technology for bevel gears, which are applied in the field of bevel gear forging tooth die forming and processing, can solve the problems of difficulty in uniformly making edges and corners into rounded corners with smooth transitions, high production costs, and impact on the rapid development of enterprises, and improve efficiency. , less production process, the effect of eliminating stress concentration

Inactive Publication Date: 2009-01-07
洛阳市冠华精锻齿轮总厂
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AI Technical Summary

Problems solved by technology

This kind of processing method has many production processes, low efficiency and high consumption. The precision of the processed mold is low and extremely unstable, and the edges and corners are not easy to be made into smooth and transitional fillets. And the influence of the conductivity of copper and t

Method used

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Embodiment Construction

[0011] The present invention uses high-speed numerical control milling electrodes. In the dynamic simulation of three-dimensional design, the contact area is located in the middle of the tooth length and tooth height, accounting for 60% of the tooth length direction. The processed tooth mold rounds all the corners, the smooth transition of the corners of the gear and the round transition of the root of the tooth, through a three-dimensional modeling of a solid, NC programming and data processing to generate a fixed tool path, unlimited times Repeated processing, so that the dimensional accuracy and surface roughness of all the processed tooth mold cavities are stable and uniform, and all corners are rounded with smooth transition. High-speed CNC milling and milling electrodes are used to process the semi-finished tooth molds that have been heat-treated by EDM. The tooth model cavity is manufactured, and finally, the finished tooth model cavity is finished by high-speed numerica...

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Abstract

The invention relates to a processing method for forming a bevel gear forging tooth die. In a three-dimensional design dynamic simulation, contact areas are positioned at the middle parts of the tooth length and the tooth height, and account for 60% in the tooth length direction. In designing, the drum-shape size is increased on the teeth shape; the high speed milled tooth die enable all corners to be round; the rounding off of gear corners and the rounding off of tooth root part are conducted; through the three dimension design, numerical control programming and digital treatment of an entity, an unchanged knife road is generated; repeated processing is conducted at unlimited times; each corner is a filleted corner through the rounding off process; an electrode is milled through a high speed numerical control mill; a semi-finished tooth die after heat treatment is processed through electric sparks; a tooth die cavity is manufactured; and finally a finished tooth die cavity is finely processed through the high speed numerical control mill, wherein, the speed of the main shaft of the fine processing of the high speed numerical control mill is 22000-30000r/min.

Description

technical field [0001] The invention belongs to a bevel gear forging process, in particular to a bevel gear forging tooth mold forming processing method. Background technique [0002] At present, the traditional processing method of the bevel gear forging tooth mold is as follows: planing the steel proof and copper electrode with the gear planer, using the copper electrode that has passed the test, and machining by electric spark erosion (rough machining, semi-finishing machining, and finishing machining) The semi-finished product of the tooth mold that has been heat-treated is used to make the cavity, and finally the cavity is polished manually or electrically. This kind of processing method has many production processes, low efficiency and high consumption. The precision of the processed mold is low and extremely unstable, and the edges and corners are not easy to be made into smooth and transitional fillets. And the influence of the conductivity of copper and the perform...

Claims

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Application Information

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IPC IPC(8): B23P15/24B23H9/00B23C3/00
Inventor 李金海孟江涛徐朝峰王志强谢爱妩
Owner 洛阳市冠华精锻齿轮总厂
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