文章摘要
发动机主轴滚子轴承铣削加工稳定性模糊控制方法
Fuzzy control method for milling stability of engine spindle roller bearing
投稿时间:2022-06-23  修订日期:2022-06-23
DOI:
中文关键词: 发动机主轴  铣削加工过程  模糊控制  滚子轴承  稳定性  加工误差
英文关键词: Engine spindle  Milling process  Fuzzy control  Roller bearing  Stability  Machining error  
基金项目:安徽省省级质量工程项目:机电一体化技术专业(2018ylzy181)
作者单位邮编
孟扬 淮南职业技术学院 232001
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中文摘要:
      滚子轴承内部构造较为复杂,为铣削加工带来了极大的困难。再加之铣削加工影响因素较多,很难避免颤振现象的发生。为了保障滚子轴承的加工质量,提出了发动机主轴滚子轴承铣削加工稳定性模糊控制方法。构建滚子轴承铣削加工模型(正交切削、斜角切削与圆柱螺旋立铣刀切削模型),深入分析铣削加工颤振产生机理。通过计算获得颤振频率预测铣削加工稳定性,引入模糊集合理论设计模糊PID控制器。设计颤振频率模糊PID控制流程,实现了发动机主轴滚子轴承铣削加工稳定性的模糊控制。实验结果显示:应用提出方法后有效控制了铣削加工颤振频率,并稳定于10Hz,滚子轴承表面振纹显著减少甚至消失,充分证实了提出方法应用性能较佳。
英文摘要:
      The internal structure of roller bearing is complex, which brings great difficulties to milling. In addition, there are many factors affecting milling, so it is difficult to avoid chatter. In order to guarantee the machining quality of roller bearings, a fuzzy control method for milling stability of roller bearings for engine spindles is proposed. The milling model of roller bearing (orthogonal cutting, oblique cutting and cylindrical spiral end milling cutter cutting model) is constructed, and the mechanism of milling chatter is deeply analyzed. The chatter frequency is calculated to predict the milling stability, and the fuzzy set theory is introduced to design the fuzzy PID controller. The fuzzy PID control flow of flutter frequency is designed, and the fuzzy control of milling stability of engine spindle roller bearing is realized. The experimental results show that the milling chatter frequency is effectively controlled and stabilized at 10Hz after the proposed method is applied, and the chatter lines on the surface of roller bearings are significantly reduced or even disappeared, which fully proves that the proposed method has better application performance.
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