摘要
为保证加工过程中工件加工质量,降低废品率,须实时监测刀具的健康状态。分析了刀具声发射检测机理,设计了一非接触式光纤F-P传感器,建立基于光纤声发射技术的刀具实时监测系统,利用虚拟仪器技术开发了切削加工过程中刀具监测的声发射信号采集和报警软件,进行了实验研究。结果表明,该系统能有效实现刀具切削过程中状态变化的非接触监测,系统软件界面友好,操作简单,具有一定的灵活性,易于扩展功能,可靠性高,成本低。
The health of tool must be real-time monitored in order to assure the machining quality of workpiece and reduce the ratio of waster in the process.In this paper,the detecting theory of tool based on acoustic emission is analyzed.A non-contact optical fiber F-P sensor is designed.The real-time monitoring system of tool based on optical fiber acoustic emission is established.The collection and alarm software of acoustic emission signals is developed by adopted the virtual instrument technology.Experimental study is carried through.The results show that the system can monitor the changing state of tool in the machining process efficiently and fast and non-contact.The system software has a friendly interface and simple operation.It has certain flexibility,high reliability,good expansibility and low cost.
出处
《组合机床与自动化加工技术》
北大核心
2010年第10期79-81,84,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金(50275125)
关键词
声发射技术
虚拟仪器
刀具
健康监测
acoustic emission technology
virtual instrument
tool
health monitoring
