Tool clamping device

A tool clamping device;

• comprising:
• a tool support means (2), containing a tool receiver (4) including a receiving bore (5),
• a tool means (7, 7a) 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).