Drive apparatus for clamping a workpiece

The present invention relates to a drive device (100) for clamping a workpiece (103), with a linear drive (105) for generating a linear driving force; a tensioning hook (107) for clamping the workpiece (103); and a rotatably mounted rocker arm (109) comprises a first sliding guide (111) for receiving the driving force of the linear actuator (105) and a second sliding guide (113) for transmitting the driving force to the tension hook (107).