Results 191 to 200 of about 3,739,192 (229)
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RBF-based compensation method on displacement and thermal error
2013 IEEE International Conference on Mechatronics and Automation, 2013With rapid development in the technologies of high precision machining and the ever increasing demand for high accuracy in the automation industry, addressing accuracy problems due to geometric and thermal errors are becoming more critical in recent years, especially thermal errors which may contribute up to 75% of the overall errors in the system ...
Kok Kiong Tan +4 more
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New ICA based thermal error compensation system
Proceedings of the 9th International Conference on Neural Information Processing, 2002. ICONIP '02., 2004Thermal error of machine tools is one of the most significant considerations on machining errors. One of the difficult issues in thermal error compensation system is to select appropriate temperature variables and to obtain accurate thermal error model.
null Dong Soo Lee +2 more
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Thermal Error Modeling and Compensation of a CNC Machining Center
Advanced Materials Research, 2012Error modeling and compensation is the most effective way to reduce thermal errors. In this paper, a novel approach to predict the thermal error of machine tool based on M-RAN is presented, clustering analysis is used to select the temperature variables, and then an easy and economical measurement system is applied to measure the temperature variables ...
Jian Han +3 more
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Thermal Sensor Placement Strategy for Machine Error Compensation
Dynamic Systems and Control, 1996Abstract A method was developed to determine the suitable temperature variables for thermal error modeling on a machine structure. An optimality analysis of the best temperature variables is discussed using the analytical solutions of a one-dimensional spindle model.
Chih-Hao Lo, Jun Ni, Jingxia Yuan
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A Software Method for Online Thermal Error Inspection and Compensation
International Journal of u- and e- Service, Science and Technology, 2016In this paper, a new online method is proposed to measure and identify the spindle thermal error of the machining center. The method is firstly established by a comprehensive error identification model including geometric and thermal error. Then the multi-viewpoint modeling method based on stereo vision is adopted to obtain the solution of thermal ...
Shuanqiang Yang +2 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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Monitoring and Compensation of Thermal Error of Profile Grinding Spindle
Key Engineering Materials, 2007Spindle thermal deformation is the main error source of many precision profile grinders. In this paper, the relationship between spindle temperature and either radial or axial thermal deformation is studied based on experiments. The placement and amount of temperature sensors are optimized.
Li Ming Xu +3 more
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The Research on Thermal Error Modeling and Compensation on Machine Tools
2012 International Conference on Control Engineering and Communication Technology, 2012To diminish the thermal error and to enhance the machining precision of CNC machines, thermal error compensation is an effective way. Taking GMC4000H/2 machining center as research object, this paper focuses on the thermal compensation skills of machine tools. Firstly, detection method of thermal deformation error on machine tool was introduced.
Bing Ren +3 more
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Thermal Behaviour of Industrial Robots and Possibilities for Error Compensation
CIRP Annals, 1997Abstract The fundamental differences between the kinematics of SCARA-, six-axes- and portal robots as well as tripod and hexapod machines are also reflected in their varying thermal behaviour This paper describes the sequential investigation of the thermal behaviour of industrial robots with a standardized experimental setup It includes a comparison ...
U. Heisel, F. Richter, K.-H. Wurst
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A new approach to thermally induced volumetric error compensation
The International Journal of Advanced Manufacturing Technology, 2012A traditional model for thermally induced volumetric error of a three-axis machine tool requires measurement of 21 geometric error components and their variation data at different temperatures. Collecting these data is difficult and time consuming. This paper describes the development of a new model for calculating thermally induced volumetric error ...
Lu, Yuxia, Islam, Mohammad Nazrul
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