Thermal-Induced Errors Prediction and Compensation for a Coordinate Boring Machine Based on Time Series Analysis
Joint Authors
Yang, Jun
Zhang, Dongsheng
Feng, Bin
Mei, Xuesong
Hu, Zhenbang
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
To improve the CNC machine tools precision, a thermal error modeling for the motorized spindle was proposed based on time series analysis, considering the length of cutting tools and thermal declined angles, and the real-time error compensation was implemented.
A five-point method was applied to measure radial thermal declinations and axial expansion of the spindle with eddy current sensors, solving the problem that the three-point measurement cannot obtain the radial thermal angle errors.
Then the stationarity of the thermal error sequences was determined by the Augmented Dickey-Fuller Test Algorithm, and the autocorrelation/partial autocorrelation function was applied to identify the model pattern.
By combining both Yule-Walker equations and information criteria, the order and parameters of the models were solved effectively, which improved the prediction accuracy and generalization ability.
The results indicated that the prediction accuracy of the time series model could reach up to 90%.
In addition, the axial maximum error decreased from 39.6 μm to 7 μm after error compensation, and the machining accuracy was improved by 89.7%.
Moreover, the X / Y -direction accuracy can reach up to 77.4% and 86%, respectively, which demonstrated that the proposed methods of measurement, modeling, and compensation were effective.
American Psychological Association (APA)
Yang, Jun& Zhang, Dongsheng& Feng, Bin& Mei, Xuesong& Hu, Zhenbang. 2014. Thermal-Induced Errors Prediction and Compensation for a Coordinate Boring Machine Based on Time Series Analysis. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1046455
Modern Language Association (MLA)
Yang, Jun…[et al.]. Thermal-Induced Errors Prediction and Compensation for a Coordinate Boring Machine Based on Time Series Analysis. Mathematical Problems in Engineering No. 2014 (2014), pp.1-13.
https://search.emarefa.net/detail/BIM-1046455
American Medical Association (AMA)
Yang, Jun& Zhang, Dongsheng& Feng, Bin& Mei, Xuesong& Hu, Zhenbang. Thermal-Induced Errors Prediction and Compensation for a Coordinate Boring Machine Based on Time Series Analysis. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1046455
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1046455