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Thermal error compensation for telescopic spindle of CNC machine tool based on SIEMENS 840D system

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Abstract

In this paper, eddy current sensors and thermocouple sensors were employed to measure the thermal field and thermal deformation of a spindle of a telescopic CNC boring-milling machine tool, respectively. A linear regression method was proposed to establish the thermal error model. Furthermore, two compensation methods were implemented based on the SIEMENS 840D system by using the feed shaft of z direction and telescopic spindle respectively. Experimental results showed that the thermal error could be reduced by 73.79% when using the second compensation method, and the thermal error could be eliminated by using the two compensation methods effectively.

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Correspondence to Weiguo Gao  (高卫国).

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CUI Liangyu, born in 1984, male, doctorate student.

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Cui, L., Gao, W., Zhang, D. et al. Thermal error compensation for telescopic spindle of CNC machine tool based on SIEMENS 840D system. Trans. Tianjin Univ. 17, 340–343 (2011). https://doi.org/10.1007/s12209-011-1619-z

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  • DOI: https://doi.org/10.1007/s12209-011-1619-z

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