The Analysis and Research about Temperature and Thermal Error Measurement Technology of CNC Machine Tool

2008 ◽  
Vol 392-394 ◽  
pp. 40-44 ◽  
Author(s):  
C. Xie ◽  
Werner Roddeck ◽  
Chun Shi Liu ◽  
Wei Min Zhang
Keyword(s):  
Machine Tool ◽  
Temperature Measurement ◽  
Technology Development ◽  
Thermal Error ◽  
Measurement Methods ◽  
Measurement Technology ◽  
Error Measurement ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Existing Problems

The existing problems of temperature measurement for CNC machine tool are pointed out through analyzing research results of temperature measurement methods, temperature measurement points optimum and temperature variables selection technology. The devices and properties of contact and non-contact temperature measurement are compared and evaluated. The error measurement devices and their technology development of CNC machine tool are described. The measurement methods and results of temperature and error are analyzed by testing on a concrete CNC machine tool. It is concluded that some objective rules exist in various machine tools. The locations of sensitive points for temperature and errors as well as its number can be defined.

Thermal error measurement of spindle for 5-axis CNC machine tool based on ball bar

2015 ◽  
Vol 23 (5) ◽  
pp. 1401-1408
Author(s):  
何振亚 HE Zhen-ya ◽  
傅建中 FU Jian-zhong ◽  
陈子辰 CHEN Zi-chen
Keyword(s):  
Machine Tool ◽  
Thermal Error ◽  
Error Measurement ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Ball Bar

Application of Ubiquitous Sensor Network in Collection and Analysis of CNC Machine Tool Processing Status Information

2010 ◽  
Vol 455 ◽  
pp. 621-624
Author(s):  
X. Li ◽  
Y.Y. Yu
Keyword(s):  
Machine Tool ◽  
Sensor Network ◽  
Machine Tools ◽  
Thermal Error ◽  
Development Trend ◽  
Cnc Machine Tools ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Status Information ◽  
The Development Trend

Because of the practical requirement of real-time collection and analysis of CNC machine tool processing status information, we discuss the necessity and feasibility of applying ubiquitous sensor network(USN) in CNC machine tools by analyzing the characteristics of ubiquitous sensor network and the development trend of CNC machine tools, and application of machine tool thermal error compensation based on USN is presented.

Improvement of forecasting robustness of time series model for thermal error on CNC machine tool

2016 ◽  
Vol 24 (10) ◽  
pp. 2480-2489 ◽  
Author(s):  
苗恩铭 MIAO En-ming ◽  
刘 义 LIU Yi ◽  
董云飞 DONG Yun-fei ◽  
陈维康 CHEN Wei-kang
Keyword(s):  
Time Series ◽  
Machine Tool ◽  
Thermal Error ◽  
Time Series Model ◽  
Cnc Machine Tool ◽  
Cnc Machine

Thermal Error Modeling of a CNC Machine Tool

2013 ◽  
Vol 303-306 ◽  
pp. 1782-1785
Author(s):  
Chong Zhi Mao ◽  
Qian Jian Guo
Keyword(s):  
Machine Tool ◽  
Back Propagation ◽  
Thermal Error ◽  
Error Modeling ◽  
Machining Accuracy ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Thermal Error Modeling ◽  
Thermal Errors ◽  
Thermal Error Model

The purpose of this research is to improve the machining accuracy of a CNC machine tool through thermal error modeling and compensation. In this paper, a thermal error model based on back propagation networks (BPN) is presented, and the compensation is fulfilled. The results show that the BPN model improves the prediction accuracy of thermal errors on the CNC machine tool, and the thermal drift has been reduced from 15 to 5 after compensation.

Research on Thermal Characteristic of Spindle System of CNC Machine Tool

2012 ◽  
Vol 510 ◽  
pp. 23-27 ◽  
Author(s):  
Zhong Qi Sheng ◽  
Zong Xiao Zhu ◽  
Chang Chun Liu ◽  
Chao Biao Zhang
Keyword(s):  
Machine Tool ◽  
Thermal Characteristic ◽  
Thermal Error ◽  
Element Model ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Spindle System ◽  
Turning Center ◽  
Machine Spindle ◽  
Steady Temperature Field

The main heat source of the spindle system of CNC machine tool has been analyzed. The friction heat of the motor as well as the bearing has been calculated. This paper established the finite element model of the spindle system of a precise CNC turning center, and used ANSYS to analyze the steady temperature field of the spindle system and the thermal deformation of the spindle. Finally, this paper proposed a solution to install a cooling sleeve in front of the spindle box, which can apparently reduce the thermal error of machine spindle.

Research on Thermal Error Modeling of CNC Machine Tool

2010 ◽  
Vol 135 ◽  
pp. 170-173 ◽  
Author(s):  
Qian Jian Guo ◽  
Jian Guo Yang
Keyword(s):  
Machine Tool ◽  
Back Propagation ◽  
Thermal Error ◽  
Back Propagation Neural Network ◽  
Error Modeling ◽  
Cnc Machine Tool ◽  
Cnc Machine ◽  
Daily Production ◽  
Proposed Model ◽  
Thermal Error Model

Four key temperature points of a CNC machine tool were obtained in this paper, and a thermal error model based on the four key temperature points was proposed by using based back propagation neural network. A thermal error compensation system was developed based on the proposed model, and which has been applied to the CNC machine tool in daily production. The results show that the thermal error in workpiece diameter has been reduced from 33 to 6 .

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