Thermo-Elastic Structural Analysis of a Machine Tool Using a Multi-Channel Absolute Laser Interferometer
1
Institute of Mechatronic Engineering Dresden (IMD), TU Dresden, Germany
2
Fraunhofer Institute for Machine Tools and Forming Technology (IWU), Dresden, Germany
Submission date: 2020-01-19
Acceptance date: 2020-04-15
Online publication date: 2020-09-25
Publication date: 2020-09-25
Journal of Machine Engineering 2020;20(3):63-75
KEYWORDS
ABSTRACT
One of the main errors in the machining accuracy of machine tools is the displacement through thermal induced deformation. Modern design and construction methods aim to optimize the heat flow in the machine to achieve minimum displacement. To enable a further improvement it is essential to know the displacement state of the complete machine structure. However, most measurement methods that are used to capture the influence of a thermal load only measure the displacement of the TCP or individual axes. This paper presents a methodology to capture the complex spatial displacement condition of a state of the art machine tool in one measuring cycle using a multichannel laser interferometer. It describes the development of the measurement model as well as the measurement setup in the workspace of the machine. With measurements according to the presented procedure, it is possible to uncover weak points in the structure of a machine tool and to derive warm-up and cooling strategies.
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CITATIONS (2):
1.
Direct measurement of thermo-elastic errors of a machine tool
Christian Brecher, Robert Spierling, Marcel Fey, Stephan Neus
CIRP Annals
Christian Brecher, Robert Spierling, Marcel Fey, Stephan Neus
CIRP Annals
2.
Machine tool calibration: Measurement, modeling, and compensation of machine tool errors
Wei Gao, Soichi Ibaraki, M. Alkan Donmez, Daisuke Kono, J.R.R. Mayer, Yuan-Liu Chen, Károly Szipka, Andreas Archenti, Jean-Marc Linares, Norikazu Suzuki
International Journal of Machine Tools and Manufacture
Wei Gao, Soichi Ibaraki, M. Alkan Donmez, Daisuke Kono, J.R.R. Mayer, Yuan-Liu Chen, Károly Szipka, Andreas Archenti, Jean-Marc Linares, Norikazu Suzuki
International Journal of Machine Tools and Manufacture
| eISSN: | 2391-8071 |
| ISSN: | 1895-7595 |
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