Research on reverse engineering of logarithmic spiral bevel gear

Based on the research of reverse technology of logarithmic spiral bevel gear, this paper expounds several important links in the research of reverse design. Because the logarithmic spiral bevel gear is a new type of gear, which is widely used in various fields of industrial production, special analysis and research should be carried out on the characteristics and meshing principle of the logarithmic spiral bevel gear, especially the research on the machining accuracy and machining error of the logarithmic spiral bevel gear. However, the tooth surface of logarithmic spiral bevel gear is a complex spatial curved surface shape, which makes its machining process more difficult than that of general bevel gear.

In the process of machining the logarithmic spiral bevel gear processed according to the generation method, first adjust the machining parameters of the machine tool according to the generation principle to process the large wheel, and then cut the small wheel according to the conjugate principle of the gear. In this way, there is a certain machining error between the actually machined logarithmic spiral bevel gear tooth surface and the theoretical tooth surface, that is, the tooth surface deviation. The actual meshing point of the tooth surface deviates from the theoretical meshing point, and the meshing characteristics of the actually machined gear pair deviate from the requirements of the theoretical design, which affects the actual meshing transmission of the gear, and the ideal gear pair can be obtained only by trial cutting for many times.

In order to improve the machining accuracy of logarithmic spiral bevel gear and reduce the machining error, the tooth surface surface of the gear is reconstructed with the help of reverse technology, and the errors of real tooth surface and theoretical tooth surface are analyzed, which provides a technical basis for the machining of logarithmic spiral bevel gear in the future and better improves its machining accuracy.

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