Abstract: An apparatus for chucking workpieces (13; 13a, 13b, 13c, 13d, 13e, 13f, 13g, 13h, 13i, 13j) on a machining center (1) includes a base plate (22) having a holding fixture for a clamping jaw (10) of the machining center (1) and at least one clamping surface protruding upwardly from the base plate (22) in the used position and including a plurality of workpiece holding fixtures. An improved possibility for use can be achieved in such a way that the clamping surface is arranged in an integral manner with the base plate (22).

Abstract: The present invention relates to a method for loading and unloading a machine tool with tools, the tools being stored in a tool store and being transported via a manipulation device, which is particularly movable along multiple axes, to a transfer position on the machine tool or in the machine tool and being removed therefrom after use, the tools being transported by a gripper device along at least one path in a first main movement direction and in at least one travel lane, which is formed by two rows spaced apart from one another and is inclined to the main movement direction. To shorten the tool changing times, a gripper device of the manipulation device is moved between a loading and unloading position of the tool along at least one continuously running, at least partially curved path.