システムマシン用二層主軸の熱変形抑制

概要

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It has become very important to realize an advanced machine tool with higher accuracy, wide range of speed and integrated multiple-function. In order to satisfy such requirements, a main spindle structure with multiple-layered type has been developed, and it is considered to be a compact and multiple-function structure suitable for the future manufacturing system. There are, however, a few studies so far on the machine tool with multiple-layered spindle from the viewpoint of revealing the thermal characteristics and developing a remedy of the thermal deformation. In this study, therefore, the thermal behavior of the headstock model with such a two-layered spindle supported by rolling bearings has been experimentally investigated. The proposed remedies of the thermal deformation using a cooling jacket system considering the thermal behavior, has been proved to be effective.
2000-08-25