Study on Parameters of Gear Shaping

• Main Author: 莊曄
• Other Authors: 馮展華
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/89413566196233952910

碩士 === 國立中正大學 === 機械系 === 92 === Gear shaving, shaping and hobbing are major gear production methods. Gear shaping is an efficient and adaptive gear production method that can be used to cut all kinds of the cylindrical gears. Shaping can be used to cut gears that can’t be easily cut by hobbing, such as the stacked gear shaft and the internal gears. Most researches about gear shaping focus on the theoretical tooth profile of the shaper, but the tooth profile of a real shaper is quite different from a theoretical shaper. The mathematical models proposed by the previous researches for the shapped gear are based on the theoretical shaper, therefore, the errors of shapped tooth surface due to rack angle, side clearance angle and the tip relief angle are not clearly shown in the literatures. The main subjects of this research are: (1) Develop a parametric mathematical model for the shaper considering the grinding process. (2) Develop a mathematical model to simulate modern CNC shaping machine. (3) Study the effects of the shaping machine setup on the tooth form accuracy. (4) Study the effects of the shaper resharpening on the tooth profile accuracy.