基于动态磨削过程仿真的凸轮轴高速磨削稳定性预测分析

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Abstract Grinding chatter is one of the most important factors for restricting the efficient and high-quality grinding of camshaft. Based on the analysis of the geometric and kinematic characteristics of camshaft grinding, the calculation method of dynamic grinding force in high-speed grinding of camshaft is deduced considering the time delay effect and the elastic concession mechanism of grinding wheel-workpiece comprehensively, and the multi-factor coupling camshaft grinding dynamics model and camshaft dynamic grinding simulation model are established. Based on the stability lobe diagram method and dynamic grinding process simulation method, the high-speed grinding stability of camshaft is predicted and analyzed. Experiments are carried out to verify the correctness of the proposed model and method. Finally, the influence of modal parameters on the stability of camshaft high-speed grinding process is analyzed by simulating the variable modal parameters of dynamic grinding process. The results show that increasing the stiffness and damping of the process system and reducing the modal mass of the process system can improve the grinding stability and obtain a greater stable grinding limit.

Key words： non-circular grinding stability prediction grinding chatter dynamic grinding process simulation camshaft

Received: 08 June 2023 Published: 28 May 2024

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	Articles by authors
	LIU Tao1
	2
	DENG Zhaohui3
	YAO Qishui1
	2
	L Lishu4
	YU Jianghong1
	2

Cite this article:

LIU Tao1,2,DENG Zhaohui3, et al. Prediction and analysis of non-circular grinding process stability based on dynamic grinding process simulation[J]. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(10): 236-247.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2024/V43/I10/236

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