Spiral bevel gear tooth surface reconstruction method based on high-order motion model
A technology of spiral bevel gear and motion model, which is used in special data processing applications, geometric CAD, design optimization/simulation, etc. It can solve the problem of large error, high difficulty coefficient, and can not meet the complex nonlinear tooth surface reconstruction processing requirements. And other issues
Pending Publication Date: 2020-11-24
HUNAN ZDCY (ZHONGDA CHUANG YUAN) CNC EQUIP CO LTD
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Problems solved by technology
[0006] With the development of CNC machine tool technology, the structure of the machine tool for processing spiral bevel gears has been simplified, and the multi-axis linkage of the CNC machine tool can realize the machining of any tooth surface. However, in the actual processing process, the linkage axes of the machine tool are nonlinear. The calculation of the kinematic relationship is also based on the traditional cradle structure. In the existing tooth surface reconstruction method, the actual machining position is generally obtained by interpolation or Taylor expansion, and then adjusted by the machine tool. The error There are also some methods to complete the tooth surface reconstruction by directly calculating or optimizing the polynomial motion coefficient of the linkage shaft, but they also mainly focus on the reverse adjustment of the basic parameters. When using double-sided machining, it is necessary to pay attention to the requirements of tooth thickness and tooth depth. The difficulty coefficient is high, and it cannot meet the processing requirements of complex nonlinear tooth surface reconstruction
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[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0037] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the descripti...
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The invention discloses a spiral bevel gear tooth surface reconstruction method based on a high-order motion model. Starting from a cradle type machine tool model, a corresponding additional motion orvirtual axis motion (i.e., a first manufacturing parameter) is added, the reconstruction of any tooth surface can be realized, an equivalent conversion calculation mode is adopted, the machining of the target reconstructed tooth surface can be realized in the existing numerical control machine tool. The method is suitable for machining types of initial tooth surfaces according to a generating method or a forming method. The method is also suitable for machining modes including a milling method and an end face hobbing method, and the target reconstructed tooth surface corresponding to the method is suitable for deviation tooth surfaces of all Ease-Off structure types, including but not limited to any smooth tooth surface constructed based on a target point, a measured standard tooth surface, a complete conjugate tooth surface of the tooth surface and the like.
Description
technical field [0001] The invention relates to a tooth surface reconstruction method, in particular to a spiral bevel gear tooth surface reconstruction method based on a high-order motion model. Background technique [0002] Spiral bevel gears are divided according to the offset distance of the gear pair, mainly including spiral teeth and hypoid gears. For a long time, there are two main processing methods for spiral bevel gears: generating method and non-generating method. [0003] Regarding the generation method, it mainly includes the face milling method of single tooth indexing and the face hobbing method of continuous indexing. For the generation method of face milling, at each instant, the cutter head cuts into the tooth depth position of the gear to be processed, and the rotating surface of the cutter head follows the swing of the cradle to form a spatial production surface, the production surface and the gear to be processed Carry out "cutting" motion according to...
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IPC IPC(8): G06F30/17G06F30/20
CPCG06F30/17G06F30/20
Inventor邹谦杨洪成邹文毅卢龙远
OwnerHUNAN ZDCY (ZHONGDA CHUANG YUAN) CNC EQUIP CO LTD