Patent ID: 8377396

Claim:
A combination comprising a tool support and a tool mounted to the tool support thereto: the tool support comprising a base which includes an L-shaped section and a sleeve-shaped section having a cylindrical accommodation; a bayonet-type locking ring rotatably mounted within the cylindrical accommodation; a drive appliance; a first coupling appliance; and a drive motor; the tool comprising: a second coupling appliance and a mounting appliance; wherein the tool is detachably mounted in the cylindrical accommodation with the mounting appliance; the mounting appliance being connected to the bayonet-type locking ring; wherein the first coupling appliance is rotatably and detachably connected to the second coupling appliance; and the drive appliance further comprises a servo motor connected to the first coupling appliance for driving the tool; and wherein the drive motor of the tool support further comprises a shaft and a drive gearwheel fixed on the shaft, said drive gearwheel combs with the bayonet-type locking ring when the bayonet-type locking ring rotates, and the drive motor rotates the bayonet-type locking ring to detachably mount the tool to the tool support, and a control appliance for controlling the movements of the tool and of the bayonet-type locking ring of the tool support.