Patent ID: 8066456

Claim:
A clamping device for removably mounting a tool ( 3 ) or a tool fixture in a receiving part ( 1 ), the device containing several pincer elements ( 33 ) which are concentrically arranged around a central axis ( 32 ) within the receiving part ( 1 ) and are impinged upon by a tension spring ( 39 ) so as to be moved into a clamping position in order to brace the tool ( 3 ) or the tool fixture, wherein the pincer elements ( 33 ) are coordinated with an axially movable closing element ( 17 ), which, in a forward position that is advanced in a direction of the pincer elements ( 33 ), pushes the pincer elements ( 33 ) for mounting purposes in their clamping position, which is swiveled inwardly by the tension spring ( 39 ), and which can move into a retracted position by a loosening mechanism ( 12 , 16 , 45 , 46 , 47 ) in order to release the pincer elements ( 33 ).