| Abstrakt: |
In order to realize the milling of split straight bevel gear tooth surface based on the end milling cutter, a cutter position solution method of side milling for the split straight bevel gear was proposed in this paper. According to the tooth surface forming principle of straight bevel gear, the tooth surface machining coordinate system was established, and the tooth surface machining path of the split body was analyzed. The tool position and its attitude was analyzed, the tool position solution in the computerized numerical control (CNC) machining process of gear tooth surfaces was realized, and the explicit function expressions of the tool center coordinate and the tool axis vector were obtained in milling the split wheel blank. On this basis, through post-processing and NC machining programming, the gear cutting simulation and results analysis were carried out by means of the VERICUT software. Finally, through side milling and measurement experiments, the feasibility and correctness of the cutter position solution method proposed were verified. The experimental results show that all the machining deviation values of the machined gear are within the normal range. The maximum tooth pitch error is 25. 3 μm, the total cumulative pitch error is 21. 8 μm, the radial circular run-out error is 38. 3 μm, the maximum tooth profile total error is 5. 6 μm, and the maximum tooth profile shape error is 2. 6 μm, which comprehensively reach the specified accuracy standard of the extra-large straight bevel gear. [ABSTRACT FROM AUTHOR] |
