China Mechanical Engineering ›› 2025, Vol. 36 ›› Issue (8): 1784-1795.DOI: 10.3969/j.issn.1004-132X.2025.08.014

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Research on Mechanism Analysis and Online Monitoring System of Camshaft High-speed Grinding Burns

Zhaohui DENG1,3, Rongjin ZHUO2,3(), Jingqiang CHEN2,3, Jimin GE2,3, Lishu LYU2,3, Wei LIU2,3   

  1. 1.Institute of Manufacturing Engineering,Huaqiao University,Xiamen,Fujian,361021
    2.College of Mechanical and Electrical Engineering,Hunan University of Science and Technology,Xiangtan,Hunan,411201
    3.Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-cut Material,Xiangtan,Hunan,411201
  • Received:2024-08-06 Online:2025-08-25 Published:2025-09-18
  • Contact: Rongjin ZHUO

凸轮轴高速磨削烧伤机理分析与在线监测系统研究

邓朝晖1,3, 卓荣锦2,3(), 陈敬强2,3, 葛吉民2,3, 吕黎曙2,3, 刘伟2,3   

  1. 1.华侨大学制造工程研究院, 厦门, 361021
    2.湖南科技大学机电工程学院, 湘潭, 411201
    3.湖南科技大学难加工材料高效精密加工湖南省重点实验室, 湘潭, 411201
  • 通讯作者: 卓荣锦
  • 作者简介:邓朝晖,男,1968年生,教授、博士研究生导师。研究方向为先进加工技术、智能制造。发表论文200余篇。
  • 基金资助:
    国家自然科学基金(52375428);国家自然科学基金(52405470);国家自然科学基金(52405471);国家自然科学基金区域创新发展联合基金重点项目(U23A20634)

Abstract:

The high-speed grinding of the non-circular contours of the camshafts was prone to grinding burns, resulting in a decrease in surface quality and service life and even scrapping. Therefore, the mechanism analysis and online monitoring system of camshaft high-speed grinding burns were studied. The influences of processing parameters on grinding burns were discussed. A grinding burn's quantitative evaluation method was proposed by surface morphology and hardness.Frequency and time-frequency domain analysis methods carried out the signal processing and feature extraction. The relationship between the sensing signals and grinding burns was analyzed. The AE (acoustic emission) signal features with a high correlation with grinding burn were extracted based on ReliefF. The monitoring model of grinding burn was established based on GA-SVM(genetic algorithm-support vector machine). And it was verified by experiments. The online monitoring system of camshaft high-speed grinding burns was developed and applied.

Key words: camshaft, high speed grinding, grinding burn, online monitoring

摘要:

凸轮轴非圆轮廓高速磨削过程容易发生磨削烧伤,导致表面质量和使用寿命下降甚至报废,因此开展了凸轮轴高速磨削烧伤机理分析与在线监测系统研究。探讨了工艺参数对磨削烧伤的影响规律,通过表面形貌和硬度分析提出了磨削烧伤量化评价方法;利用频域和时频域分析方法进行信号处理与特征提取,并分析了传感信号与磨削烧伤的关系;基于ReliefF提取了与磨削烧伤具有高相关性的AE信号特征,基于遗传算法-支持向量机(GA-SVM)建立了磨削烧伤监测模型并进行了实验验证。开发了凸轮轴高速磨削烧伤在线监测系统并实现了应用。

关键词: 凸轮轴, 高速磨削, 磨削烧伤, 在线监测

CLC Number: