Abstract: A novel machining center having a plurality of tools, including adjustable tools incorporating an externally accessible rotatable socket for fine-adjusting the tool bit thereon; a tool drive for actuating each tool; a storage device for storing a plurality of tools, at least one of which is one of the adjustable tools, the storage device being operable to move the tools between first and second positions; an automatic tool changer for transporting a tool in both directions between said first position and the tool drive; a powered wrench engagable with said socket on an adjustable tool disposed in said second position; a numerical controller for controlling the operations of said machining center; and a technique for inputing to the control means information as to the identity of a given adjustable tool requiring adjustment and the amount of adjustment desired, said powered wrench being actuatable to engage said socket of said given adjustable tool in response to said information when the given tool is in said

Abstract: A machine tool comprises a work head in which tools are mounted in use and which is movable along a main beam in a Y machining direction. A tool selected from a tool storage matrix is held at an exchange position in readiness for exchange with a tool mounted on the work head. A carriage is movable along a subsidiary beam in a direction parallel to the Y machining direction and carries a pair of tool grippers. During a tool change, one of the grippers takes the tool from the exchange position and holds the latter while the carriage moves to the work head where it latches onto the latter by means of a latch device. The other gripper then removes the tool from the work head, whereupon said one gripper inserts the replacement tool in the work head. The carriage then unlatches from the work head and moves away therefrom, so that said other gripper can return the removed tool to the exchange position.

Abstract: A machine tool having an automatic tool changer for interchanging cutting tools between the machine spindle and a tool storage wheel. The shanks of the tools are fitted in special "pot-type" holders which support the tools in assigned positions on the storage wheel. A shuttle extracts a selected tool and its holder from the storage wheel and transports them to an interchange position adjacent the machine spindle. At the interchange position a newly selected tool is extracted from its holder and is inserted into the spindle while the previously used tool is inserted into the holder in which the newly selected tool was delivered to the interchange position. The old tool is then returned in this holder to its assigned position on the storage wheel.