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Design of CNC Formate Milling Machine of Hypoid Gear and the Experiment of Dry Cutting

Author: WangMingHai
Tutor: DengXiaoZhong
School: Henan University of Science and Technology
Course: Mechanical Design and Theory
Keywords: hypoid gears form machine dry cutting gear milling machine CNC
CLC: TG611
Type: Master's thesis
Year: 2010
Downloads: 54
Quote: 0
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Abstract


Hypoid gear is a critical part which is widely used in automobile chassis transmission. With the rapid develop of our country’s motor-dom, the demand of the hypoid gear multiplies. At the present, the gear milling machine which use damp processing is widely used in our country, but the cutting efficiency is low. So, it is necessry to develop a dry cutting milling machine, which is energy conservation and environment protection and will increase the efficiency and make processing easier.These contents have been discussed in this paper:1. Based on the principle and method of spiral bevel and hypoid gears generating, the mathematical model of cutting hypoid gear in the machine has been seted up. And the movement of processing parameters are solved. The principle of high speed dry-type cutting has been introduced. Then the mechanical structure designs of machine tool have been done,2. Designed the machine structure. According to the requirements of dry cutting to machine tools’performance, parts of machine optimization were improved. Such as the use of the whole bed, 8 speed tool box, variable lead worm gear indexing, automatic chip removal devices. At last machine mechanical structure design was completed, the parts diagram was drawed for the production.3. The hydraumatic part of the machine has been designed. The working condition of machine has been analysed, and according to the actual movement request of machine, the The numerical control of the machine has been chosen reasonably, then the machine tool circuit and the electricla cabinets have been designed, and the circuit schematics of machine have been draw to realize the semi-numerically processing of work piece.4. The prototype has been assembled, and the experiment has been done to inspect performance, machining accuracy and efficiency of the machine.The test proved that the NC milling machine can meet the needs of dry cutting, and the rough cut efficiency of the wheel hypoid gears increases 5 times, and the machine has more advantages, such as high strength, high efficiency, easy to operate and inexpensive, and so on.. The scheduled design requirements have been achieved.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Gear cutting and gear machine > Milling and milling machine
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