Patent ID: 6974287

Claim:
A tool clamping device; comprising: a tool support means ( 2 ), containing a tool receiver ( 4 ) including a receiving bore ( 5 ), a tool means ( 7 , 7 a ) with a shaft ( 6 ) having a center axis ( 10 ), which can be inserted into the receiving bore ( 5 ) wherein the receiving bore ( 5 ) has a cross section extending at a right angle to the shaft center axis ( 10 ), wherein the tool means shaft ( 6 ) has a cross section matching the cross section of the bore ( 5 ), wherein the shaft ( 6 ) when inserted into the receiving bore ( 5 ) is in contact with the bore ( 5 ) at close tolerance, and the tool means including a cylindrical section ( 8 ) which extends at a right angle with respect to the shaft center axis ( 10 ) in a circumferential direction, wherein the tool support means ( 2 ) has an end face ( 12 ), wherein the cylindrical section ( 8 ) has an end face ( 11 ) and wherein the end face ( 11 ) of the cylindrical section and the end face ( 12 ) of the tool support means are in contact without play when the shaft ( 6 ) is inserted into the receiving bore ( 5 ); the cylindrical section ( 8 ) further including clamping grooves ( 9 ) circumscribing the cylindrical section ( 8 ) at right angles with respect to the shaft center axis ( 10 ); a ring ( 14 ) circumscribing the cylindrical section ( 8 ) at right angles with respect to the shaft center axis ( 10 ), and engaging the clamping grooves ( 9 ); a clamping device, having clamping means ( 17 , 67 , 68 ), which can be directly or indirectly fastened in place on the tool support means ( 2 ), and wherein the ring ( 14 ) radially protrudes past the tool means in a clamping area and extends in the circumferential direction with respect to the shaft center axis ( 10 ) and wherein the clamping means ( 17 , 67 , 68 ) are fastened in place on the tool support means on the ring and are ( 2 ) axially supported when the shaft ( 6 ) has been inserted into the receiving bore ( 5 ).