切入式外圆磨削接触刚度与固有频率研究

摘要/Abstract

摘要： 基于外圆切入磨削系统动力学简化模型，对磨削材料去除率模型的时间常数进行研究，提出了切入式外圆磨削接触刚度的有效测量方法，并建立了磨削接触刚度与系统固有频率的关系模型。通过大量磨削实验，验证了不同磨削工艺参数与接触刚度、系统固有频率及颤振频率的变化规律。研究结果为后续避免或抑制磨削颤振以及磨削工艺参数优化研究提供了实验基础和理论依据。

关键词: 外圆切入磨削, 接触刚度, 动力学模型, 颤振频率

Abstract: Based on the cylindrical plunge grinding system simplified dynamics model, a new method was provided to determine the contact stiffness accurately by using the time constant of material removal model. And, a dynamics model was established to analyze the relationship between the contact stiffness and the system natural frequency. At last, the changing rules of contact stiffness, system natural frequency (or chatter frequency) with different parameters were verified by experiments. The research results provide important experimental data and theoretic method for avoiding or controlling grinding chatters and optimizing the grinding parameters in future.

Key words: cylindrical plunge grinding, contact stiffness, dynamics model, chatter frequency

中图分类号:

TG501

迟玉伦, 李郝林. 切入式外圆磨削接触刚度与固有频率研究[J]. 中国机械工程.

Chi Yulun, Li Haolin. Study on Contact Stiffness and Natural Frequency in Cylindrical Plunge Grinding[J]. China Mechanical Engineering.

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