Research on the Remote Monitoring and Fault Diagnosis of CNC System Based on Network

2011 ◽  
Vol 141 ◽  
pp. 465-470 ◽  
Author(s):  
Jin Zhou Lin ◽  
Da Yong Jiang ◽  
Bo Geng ◽  
Zhong Hai Zhang
Keyword(s):  
Fault Diagnosis ◽  
Remote Monitoring ◽  
High Speed ◽  
High Reliability ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Cnc System ◽  
Extraction Technology ◽  
Intelligent Maintenance ◽  
Tool Monitoring

This paper aimed at NC system’s high-speed, high-accuracy, high reliability requirements. The condition monitoring, faint information extraction and fault diagnosis technology are researched of complex CNC system. Elaborated to develop a common interface and achieved the seamless interaction of CNC system and reconfigurable embedded monitoring unit basis. A machine tool monitoring diagnostic verification platform with on-machine monitoring and intelligent maintenance features of CNC system is constructed based on the internet. Integration achieved the CNC machine tools’ status remote monitoring and fault diagnosis, and detailed analysis of the key technologies for the components of the system. Through effectively integration of the computer technology, weak signal extraction technology, fault diagnosis or other technologies to enhance the automation, networking and intelligent level of the complex CNC system.

FPGA-Based Intelligent Software Hardening Chip for Computer Numerical Control System

2011 ◽  
Vol 105-107 ◽  
pp. 2217-2220
Author(s):  
Mu Lan Wang ◽  
Jian Min Zuo ◽  
Kun Liu ◽  
Xing Hua Zhu
Keyword(s):  
High Speed ◽  
High Performance ◽  
Large Scale ◽  
Position Control ◽  
Computer Numerical Control ◽  
Numerical Control ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Cnc System ◽  
Intelligent Software

In order to meet the development demands for high-speed and high-precision of Computer Numerical Control (CNC) machine tools, the equipped CNC systems begin to employ the technical route of software hardening. Making full use of the advanced performance of Large Scale Integrated Circuits (LSIC), this paper puts forward using Field Programmable Gates Array (FPGA) for the functional modules of CNC system, which is called Intelligent Software Hardening Chip (ISHC). The CNC system architecture with high performance is constructed based on the open system thought and ISHCs. The corresponding programs can be designed with Very high speed integrate circuit Hardware Description Language (VHDL) and downloaded into the FPGA. These hardening modules, including the arithmetic module, contour interpolation module, position control module and so on, demonstrate that the proposed schemes are reasonable and feasibility.

The Research of GPRS-Based Remote Fault Monitoring System for CNC Machine Tools

2011 ◽  
Vol 328-330 ◽  
pp. 393-397
Author(s):  
Ming Liang Wu ◽  
Xiao Bing Wang ◽  
Shu Rong Yu
Keyword(s):  
Monitoring System ◽  
Communication Networks ◽  
Remote Monitoring ◽  
Data Transfer ◽  
High Reliability ◽  
Fast Response ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Remote Monitoring System ◽  
Wide Range

Based on GPRS network remote monitoring system which uses its two-way transmission performance, can easily monitor various electrical equipments and get information. Compare with the past remote monitoring systems, the system has the advantage of flexible networking, convenient, wide range of data transmission, high reliability, fast response time, and has great significance and value of research in CNC machine tool system with upgrade GPRS in the mobile communication networks, data services expand and data transfer capabilities.

Study on an Acc/Dec Method Based on Moving Average Technology for CNC Machine Tools

2014 ◽  
Vol 556-562 ◽  
pp. 1413-1416 ◽  
Author(s):  
Tian Xiang Hu ◽  
Li Bing Zhang ◽  
Ting Wu ◽  
Feng Li Huang
Keyword(s):  
Machine Tools ◽  
High Speed ◽  
Processing Time ◽  
Moving Average ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Cnc System ◽  
Planning Approach ◽  
Velocity Planning ◽  
S Curve

To overcome some shortcomings of the linear Acc/Dec approach and the traditional S-curve Acc/Dec method, a novel velocity planning approach is proposed for CNC machine tools in this paper. The velocity planning model based on moving average technology is structured. The presented approach is used to make velocity planning for the CNC system. Comparing with the linear Acc/Dec algorithm, the presented method greatly improves motional smoothness of the linear Acc/Dec approach and reduces the complexity of the traditional S-curve Acc/Dec algorithm, which is more suitable for high-speed and high-precision CNC machine tools. The proposed approach is tested by simulation and experimentation. Simulation and experimental results have shown that the proposed method can significantly improve the motional smoothness and consumes less resource and shortens processing time for the CNC system.

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

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.

Computer Numerical Control Machine Tool and its Development Trend

2013 ◽  
Vol 774-776 ◽  
pp. 1458-1461
Author(s):  
Huan Yun Wang ◽  
Xiu Fen Liu
Keyword(s):  
Machine Tools ◽  
High Speed ◽  
Manufacturing Industry ◽  
High Reliability ◽  
Development Trend ◽  
Numerical Control ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Control Machine Tool ◽  
Comprehensive Level

CNC machine tools are the key equipment in the equipment manufacturing industry, which is related to the national economic construction and strategic position, and is an important symbol reflecting the national comprehensive level. This article analyzes the emergency and characteristics of CNC machine tools and its development trend such as high precision, high speed, high reliability, complex, intelligent, flexibility, integration and openness.

Development of an Integrated, Adaptable CNC System

2009 ◽  
pp. 283-296
Author(s):  
Xun Xu
Keyword(s):  
Cnc Machine Tools ◽  
Manufacturing Companies ◽  
Cnc Machine ◽  
Cnc System ◽  
Design Information ◽  
Level Data ◽  
Level Information ◽  
Function Blocks ◽  
And Function ◽  
Task Level

In order to prepare manufacturing companies to face increasingly frequent and unpredictable market changes with confidence, there is a recognized need for CNC machine tools to be further advanced so that they become more integrated with design models and adaptable to uncertain machining conditions. For a CNC system to be able to access any design information, this design information has to be at the task-level, that is what-to-do. For a CNC system to produce the final part, it has to turn the task-level information into method-level information which effectively is the machine control data. These topics are discussed at the beginning of this chapter. The rest of the chapter discusses a CNC native database used for converting the task-level data to method-level data, the methodology of converting the task-level data to methodlevel data, and implementation of the methodology to a conventional CNC machine that employs G-codes. Again both STEP-NC (ISO 14649-1, 2003) and function blocks (IEC 61499, 2005) are used.

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