Abstract
One functional requirement of machine tool frames is to maintain relative geometric positioning of interfaces irrespective of any surrounding effects or conditions. Challenges for the absolute accuracy of axis positioning are quasi-static deformations in machine tool structures due to temperature variations caused by environment or the manufacturing process. On the advent of increased research in solid state materials for thermoelectric modules, the utilization of thermal energy as a beneficial source needs to be evaluated. This paper presents the conceptual design of a thermally actuated module which can compensate the previously mentioned quasi-static deformations in the framework of a building set for modular machine tool structures. The principle of different thermal expansion coefficients of materials is exploited in the design of the module to facilitate a compensating movement. The module works energy autarkic as well as controlled by external energy input.
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