Fault Diagnosis Model Based on Multi-level Information Fusion for CNC Machine Tools

This paper introduces the Control logic relationship of CNC lathe, and combines with statistical data to discuss about how to scene forensics and failure analysis. And it uses fault diagnosis skills Maintenance examples to illustrate how to think when face with the failure of the CNC machine tools, which has guiding significance to the implementation of a correct diagnosis and maintenance of CNC machine tools.

Download Full-text

Design of Competence Promoting Multi-Agent-Systems to Support the User in Fault Diagnosis of CNC-Machine Tools

Computer Aided Systems Theory - EUROCAST’99 - Lecture Notes in Computer Science ◽

10.1007/10720123_17 ◽

2000 ◽

pp. 201-208

Author(s):

Regine Gernert ◽

Peter John

Keyword(s):

Fault Diagnosis ◽

Machine Tools ◽

Cnc Machine Tools ◽

Multi Agent Systems ◽

Cnc Machine ◽

Agent Systems ◽

Multi Agent

Download Full-text

Study on High-Grade CNC Machine Tool Wear Monitoring Methods and Experimental System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.591-593.1844 ◽

2012 ◽

Vol 591-593 ◽

pp. 1844-1848

Author(s):

Min Huang ◽

Xiu Li Liu ◽

Le Yan

Keyword(s):

Fault Diagnosis ◽

Tool Wear ◽

Machine Tools ◽

High Speed ◽

Experimental System ◽

Milling Process ◽

Test Method ◽

Cnc Machine Tools ◽

Cnc Machine ◽

Monitoring Methods

Today, CNC machine tools are moving in the high-speed, high precision, heavy and complex processing of direction, leading to early failure in service due to machine performance, if not timely diagnosis and early warning, will result in waste increases, fluctuations in the quality, productivity decline.Therefore, to ensure reliable operation of CNC machine tools is very important.To build fault diagnosis of CNC machine tools and get test method as the goal, the tool wear experiments are carried out. Signals for cutting tool with different wear in milling process are detected，acquisited and analyzed through vibration sensors and acoustic emission sensors on the milling tools. To LabVIEW8.6 as development platform, a fault diagnosis experimental system of CNC machine tools is developed, including data acquisition module, signal analysis module, fault diagnosis module.

Download Full-text

Research on Fault Diagnosis for Bearing of CNC Machine Tools

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.605-607.713 ◽

2012 ◽

Vol 605-607 ◽

pp. 713-717

Author(s):

Bang Cheng Zhang ◽

Xiao Jing Yin ◽

Zhi Jie Zhou ◽

Yu Ling Zhang

Keyword(s):

Fault Diagnosis ◽

Machine Tools ◽

Cnc Machine Tools ◽

Machining Efficiency ◽

Bearing Failure ◽

Analysis Method ◽

Cnc Machine ◽

Transmission Part ◽

Machine Work ◽

Reliable Basis

For the use of CNC machine tools is more and more extensive, its fault diagnosis research is becoming more and more important. Failure forms are diversified, and fault reasons are very complicated. Once bearing that is an important transmission part is in fault, the machining efficiency will decrease and affect process accuracy, even make the machine work abnormally. This paper presents a deep analysis of bearing failure mechanism using the wavelet analysis method identify its failure, specially the motor and transmission machine bearing, which provides reliable basis for fault diagnosis and forecast.

Download Full-text

Design and Implementation of Online Monitoring and Remote Diagnostic System for CNC Machine Tools

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.819.136 ◽

2013 ◽

Vol 819 ◽

pp. 136-139

Author(s):

Lu Yang Jing ◽

Tai Yong Wang ◽

Dong Xiang Chen ◽

Jing Xiang Fang

Keyword(s):

Fault Diagnosis ◽

Real Time ◽

Machine Tools ◽

Online Monitoring ◽

Acquisition System ◽

Cnc Machine Tools ◽

Cnc Machine ◽

Diagnosis System ◽

Fault Diagnosis System ◽

Remote Fault Diagnosis

With the development of network technology and fault diagnosis technology, monitoring and diagnosis methods for the CNC machine tools had a great change. In this paper, an online monitoring and remote diagnosis system for CNC machine tools was built. The system was consisted of the multi-channel online acquisition system and remote fault diagnosis system. The online acquisition system achieved a real-time monitoring for CNC machine tools. The remote fault diagnosis system provided the management of devices and assistant for experts to analyze data which was uploaded from acquisition system. The system offered real-time state information of CNC machine tools and reduced downtime of machine effectively.

Download Full-text