数控凸轮轴磨床工件旋转轴转速优化方法_王洪.pdf

50 15 Vol.50 No.15 2 0 1 4 8 JOURNAL OF MECHANICAL ENGINEERING Aug. 2 0 1 4 DOI 10.3901/JME.2014.15.205 * 1, 2 1, 3 1, 4 3 (1. 410082 2. 410081 3. 325035 4. 410323) YTMK-CNC8336-16 0.015 mm R 0.25 μm30% a TP391 Optimization Method of Workpiece Rotation Shaft Speed of CNC Camshaft Grinding Machine WANG Hong1, 2 DAI Yuxing 1, 3 XU Jun1, 4 LI Zongjian3 (1. College of Electrical and Information Engineering, Hunan University, Changsha 410082; 2. College of Engineering and Design, Hunan Normal University, Changsha 410081; 3. College of Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035; 4. Yuhuan CNC Macine Tool Co., Ltd, Changsha 410323) Abstract Based on the constant removal rate method, the mathematical model of the cam grinding is built. Through analyzing the cam’s grinding model, the constraints of cam’s driver, some system’s parameters are obtained, such as the slow-down ratio of workpiece, and the maximal speed, the maximal acceleration and the maximal differential acceleration of the wheel’s horizontal feed. A control method of the grinding wheel’s feed speed is proposed. The forward and reverse interpolation point can be dynamic solved to meet the maximum wheel’s feed speed, and the optimal interpolation is achieved. Finally, the algorithm is simulated by Matlab, and it is applied to YTMK-CNC8336-16, which is a CNC camshaft grinding machine. The experimental res