Abstract: In a machine tool (2), in particular for cutting treatment of workpieces (9) comprising a machine frame, a workpiece table (15) borne on the machine frame and an approximately horizontally disposed processing unit (8) which is mounted to the machine frame, the processing unit (8) is mounted also to a support (6) of the machine frame overlapping the workpiece table (15). This upper mounting prevents displacement of the processing unit relative to the workpiece due to the forces acting thereon during processing, in particular in the Z-direction. These forces are accommodated by the machine frame which is self-contained through the support.

Abstract: In a machine tool for cutting treatment of workpieces, comprising a workpiece support having two opposing side walls, a tool support having two opposing side walls and at least one approximately horizontally disposed processing unit (work spindle 8) on the tool support, wherein during operation of the machine tool, forces act between workpiece and processing unit, in particular in the Z direction, the side walls of the tool support and workpiece support, respectively, are combined to form one common side wall (3). Since tool and also workpiece are held at the two common side walls, the forces acting between tool and workpiece are accommodated by said side walls.