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Thermal modelling of an HSC machining centre to predict thermal error of the feed system
Production Engineering, 2012Machine tools equipped with linear motors can achieve high feed speed as well as high accuracy. However, the direct feed drive system generates heat through power loss and friction. In combination with environmental influences such as machine shop climate, this can lead to a local deformation of the machine tool structure and induce a direct ...
Eckart Uhlmann, Jiangmin Hu
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Recent Patents of Thermal Error Modeling and Thermal Error Prediction of CNC Machine Tool Spindle
Recent Patents on Engineering: With the development of machine tools to high precision and high automation, thermal error has become the key reason to hinder the improvement of thermal stability of machine tools. The spindle electrothermal error is an important factor affecting the machining accuracy of highspeed CNC machine tools.
Zhaolong Li, Benchao Sun
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Integrated Model and Compensation of Thermal Errors of Silicon Microelectromechanical Gyroscope
IEEE Transactions on Instrumentation and Measurement, 2009Based on the thermal interferential moment, the dynamic thermal error induced by accelerations of a microelectromechanical system (MEMS) gyroscope is analyzed. The electromechanical-thermal error is discussed. The integrated thermal error compensation method considering the electromechanical-thermal error and the dynamic thermal error induced by ...
Jiancheng Fang, Jianli Li
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A Priori Error Bound for Moment Matching Approximants of Thermal Models
IEEE Transactions on Components, Packaging and Manufacturing Technology, 2019This article focuses on the moment matching methodology for deriving dynamic compact thermal models (DCTMs) of electronic components. For the first time, an a priori error bound is theoretically established both in the time and frequency domains, which is suited to accurately estimate the approximation error introduced by DCTMs in practical ...
Lorenzo Codecasa +2 more
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Synthesis Error Modeling and Thermal Error Compensation of Five-Axis Machining Center
Materials Science Forum, 2006The synthesis error model of UCP710 five-axis machining center is divided into two parts: the position and orientation error models, and the article gets their models which are used as real-time compensation. One data collector system of thermal displacement and temperature is developed and used as real-time compensation for UCP710.
Xiu Shan Wang +2 more
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The thermal error optimization models for CNC machine tools
The International Journal of Advanced Manufacturing Technology, 2012Thermal error compensation is becoming a cost-effective way to improve accuracy of machine tools especially with the increasing demand for machining accuracy in recent years. The compensation effectiveness mainly depends on the accuracy of the thermal error model.
Liang Ruijun +3 more
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Adaptive input selection for thermal error compensation models
CIRP Annals, 2020Abstract The presented method selects optimal inputs for compensation models based on the Thermal Adaptive Learning Control methodology. The number of inputs and the individual inputs for each considered thermal error are automatically adapted. The intelligent combination of k-means clustering and Time Series Cluster Kernel enables the approach to ...
Nico Zimmermann +3 more
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Machine Tools Thermal Error Modeling with Imbalanced Data Based on Transfer Learning
2020 IEEE 5th International Conference on Cloud Computing and Big Data Analytics (ICCCBDA), 2020Thermal error caused by the thermal deformation is one of the most significant factors influencing the accuracy of the machine tool. Complicated working condition lead to difficulties in data collection.
Xiaomei Zhang +4 more
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Novel thermal error modeling method for machining centers
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2014Thermal deformation is one of the main contributors to machining errors in machine tools. In this paper, a novel approach to build an effective thermal error model for a machining center is proposed. Adaptive vector quantization network clustering algorithm is conducted to identify the temperature variables, and then one temperature variable is ...
Xiaolong Zhu, Sitong Xiang, Jianguo Yang
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Modeling and Estimating Thermal Error in Precision Machine Spindles
Applied Mechanics and Materials, 2010Thermal induced errors are significant factors that affect machine tool accuracy. The deformation of spindle is the main contributor to thermal error. In this paper, the thermal characteristics of the spindle system are investigated. Taking into account the coupling of elastic deformation and temperature, the heat conduction of the spindle system is ...
Jian Han, Li Ping Wang, Lian Qing Yu
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