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Media, Data and Energy Transmission in Machine Tool Spindles: An FE Analysis of Implementation Possibilities

The intention of the research project „BaZMod“ [1], funded by the Federal Ministry of Education and Research (BMBF), is to develop connections for additional cyber-physical modules, such as intelligent tools, actuators and measuring systems, to machine tools. At present, everybody is talking about such intelligent systems, known under the catchword “Industry 4.0”. Using simulations, it is analysed in this paper how the media, data and energy transmission within the spindle unit can be expanded. An FE model of a spindle unit is created and validated with experimental data by solving an optimisation problem. Then transmission concepts and design solutions are suggested with respect to transmitting media, data and energy through the spindle shaft. In addition, it is presented how the necessary changes in design affect the static and dynamic system behaviour.