on the basic body 80 by means of fastening screws 98 in order to grip a clamping strap in a clamped manner between the clamping plate 90 a 94 a and the basic body 80 the other two clamping devices 92 and 96 in each case comprise two clamping plates 92 a and 92 b or 96 a and 96 b which by using fastening screws 98 can be fixed to each other so that a clamping strap can be gripped between these in a clamped manner although this is not to be seen in fig8 the clamping devices 92 and 96 like in the case of the first embodiment are functionally connected in each case to an automatic tensioning device more precisely to an essentially vertically extending piston rod of a hydraulic linear motor which forms the tensioning device the clamping devices 92 and 96 by operating the linear drive can be moved together with the associated piston rods upwards and downwards accordingly in order to selectively tension or to slacken the associated clamping strap in this way two draw in bolts 100 which serve for fastening the basic body 80 on zero point clamping systems of different machine tools in order to be able to machine the turbine blade 12 accordingly are fastened on the underside of the basic body 80 just as in the case of the first embodiment a blade root support device and or one or more cooling fluid guiding devices can also be fastened on the basic body 80 the.