Thermal Error Measurement, Modeling and Compensation for Motorized Spindle and the Research on Compensation Effect Validation

Yu Qing Fu; Wei Guo Gao; Jin Yu Yang; Qing Zhang; Da Wei Zhang

doi:10.4028/www.scientific.net/AMR.889-890.1003

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 889-890Thermal Error Measurement, Modeling and...

Thermal Error Measurement, Modeling and Compensation for Motorized Spindle and the Research on Compensation Effect Validation

Abstract:

The motorized spindle is a primate part of the machine tool and its thermal characteristics have great influence on the accuracy of the machine tools. The thermal errors of the spindle of a certain type of precision horizontal machining center were measured with PLC acquisition system. By multivariate linear regression method, the axial thermal error model was built. Online real-time error compensation was implemented by applying the FANUC 18i CNC system external machine coordinate system shift function. A verification method was proposed which include three steps: model validation, compensation validation and experimental machining verification. The accuracy of the model was 84.1%, 64.9% and 49.4% respectively. The quantitative analysis results showed the precision was effectively improved and the compensation method was reliable.

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Periodical:

Advanced Materials Research (Volumes 889-890)

Pages:

1003-1008

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.889-890.1003

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Online since:

February 2014

Authors:

Yu Qing Fu, Wei Guo Gao*, Jin Yu Yang, Qing Zhang, Da Wei Zhang

Keywords:

CNC Machine Tool, FANUC CNC System, Motorized Spindle Thermal Errors

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* - Corresponding Author

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