Evaluation of electromagnetic guides in machine tools |
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Authors: | Berend Denkena Oliver GuemmerFelix Floeter |
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Affiliation: | Institute of Production Engineering and Machine Tools, Leibniz Universität of Hannover, An der Universität 2, 30823 Garbsen, Germany |
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Abstract: | Guides in machine tools aim for high accuracy, stiffness and damping. However, these characteristics are mainly limited by the working principle. In this paper, the implementation of electromagnetic guides in linear machine tool axes is evaluated. A milling machine prototype, with the opportunity of using ball guides or electromagnetic guides in the z-axis, is employed. Primarily, working principle and properties of the electromagnetic guide are presented and analyzed. Operating behaviour, stiffness and damping of the two guiding principles are compared. The electromagnetic guide is finally assessed in the milling process and beneficial functions of the system are presented. |
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Keywords: | Machine tool Magnetic bearing Drive |
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