Patent ID: 8545374

Claim:
A system comprising a machining device, which system comprises at least one chuck, and at least one jaw detachably connected to said at least one chuck, as well as a jaw exchanging device cooperating with said machining device, which at least one chuck is provided with at least one locking element which can be moved in a locking direction and in an opposite direction, from a jaw releasing position wherein the at least one jaw is released from the at least one chuck, to a jaw locking position wherein the at least one jaw is locked to the at least one chuck, and vice versa, by means of the jaw exchanging device, which jaw exchanging device is provided with gripping and moving means for gripping and moving the at least one jaw with respect to the at least one chuck selectively into and out of contact with the at least one chuck when the at least one locking element is in said releasing position, wherein the at least one chuck is provided with a rotatable operating pin rotatable with respect to the at least one chuck about an axis extending transversely to the locking direction, by means of which operating pin rotation the at least one locking element can be moved from the releasing position to the locking position, and vice versa, wherein the jaw exchanging device is provided with a connecting element rotatable about the axis and configured to be connected to the operating pin on a side of the operating pin remote from the at least one locking element, by means of which connecting element the operating pin can be rotated about the axis, and wherein the gripping and moving means includes at least two grippers for gripping the at least one jaw therebetween, which grippers are movable towards and away from each other in directions transverse to the axis about which the connecting element and operating pin rotate.