Patent ID: 9149349
Filing Date: 2015-10-06
Classification: A61C,B23B,Y10T

Abstract:
1. A system for producing dental moldings from blanks, the system comprising: a machine tool for machining a blank; a workpiece holder for securing the blank during machining, wherein the machine tool has a mount for the workpiece holder and the workpiece holder has a shank configured to be inserted reversibly into the mount and in the inserted state configured to be secured in position in the mount; a lever element having a threaded bore, wherein the system is configured so that the lever element can be clamped between the mount on one side and the shank on the other side to secure the shank in position in the mount; and a threaded pin rotatably insertable into the threaded bore of the lever element, wherein rotation of the threaded pin into the threaded bore presses the lever element against the shank, thereby clamping the lever element between the mount and the shank, wherein contact between the pressed lever element and the shank is at three pressure points, each pressure point formed by at least one protrusion of the lever element or the shank.