Analysis and Implementation for Technique for Cutting Chatter Monitoring

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Analysis and Implementation for Technique for Cutting Chatter Monitoring

更新时间：2025-07-09

- Analysis and Implementation for Technique for Cutting Chatter Monitoring
- Vol. 45, Issue 11, Pages: 95-99(2011)
- 作者机构：
  
  西安交通大学机械工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH113.1;TP277
- Online First：10 November 2011，
  
  Published：2011
- 稿件说明：
移动端阅览
Analysis and Implementation for Technique for Cutting Chatter Monitoring[J]. 2011, 45(11): 95-99.
DOI：

Analysis and Implementation for Technique for Cutting Chatter Monitoring[J]. 2011, 45(11): 95-99. DOI：

摘要

采用自主开发的外置式数控机床功能部件可重构监测系统的原型平台

研究开发了一种实用的切削颤振监测组件.针对有代表性的车削、铣削加工工艺

选择传统的振动加速度传感器拾取切削状态信息

选用时域方差和频域谱特征作为颤振发生的综合指标

采用监测数据与正常切削时建立的对比库进行比较的方法进行了颤振识别.在对颤振特征量及其阈值进行研究的基础上

进而使用C#编程语言来实现监测软件

通过引入延时机制和数据重叠处理技术

有效地提高了颤振早期预报的准确性和快速性.通过工厂切削试验对所开发的颤振监测组件进行测试验证

试验表明该组件的颤振诊断率可达到80%以上

证明了此监测方法对于工业现场的适用性.

Abstract

Chatter vibrations in metal cutting result in poor surface finish

reduced productivity

and shortened tool life. On the external reconfigurable-integrated monitoring and diagnosis prototype system for computer numerical control(CNC)

taking the typical machining processes of turning and milling as monitoring objects

the accelerometers are chosen to acquire the cutting states and the feature extraction of chatter in the time and frequency domains are analyzed

then the criterion of chatter occurring is formulated in accordance with the variance and spectrum. A comparison scheme between the monitoring data and the reference database representing the stable cutting state is considered

subsequently

the chatter monitoring module and algorithms are implemented with C# programming

where delay strategy and overlap processing enable to improve the accuracy and rapidity of the monitoring and diagnosis system. The industrial tests are conducted to verify that the diagnostic rate is up to or beyond 80%.

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references

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