US Patent 11801583 Workpiece clamping device

A workpiece clamping device having a first base body on which a first clamping body is slidably supported in a clamping direction, as well as a second base body on which a second clamping body is slidably supported in the clamping direction. The two clamping bodies are in engagement with a threaded spindle. A contact surface is provided on each base body on the side that faces the other base body respectively. The contact surfaces are arranged with base body distance in the clamping direction. A centering body of the threaded spindle has centering surfaces that abut at one assigned contact surface respectively in order to position the threaded spindle in clamping direction without clearance as far as possible.