| 摘要 |
A turret includes a housing connected to a machine tool, a rotatably mounted toolholder for mounting of machining tools, and an electric drive for rotating the toolholder into a particular working station for the machining tools. The electric drive has a rotor and a stator with coil windings. The rotor of the electric drive is connected to the toolholder. The stator is connected to elements of the housing. The rotary movement for the toolholder is generated without gearing and directly by the electric drive of the rotor enclosing the stator. Since both the rotor and the stator are enclosed by the toolholder and since the rotor is in direct contact with the toolholder on the side of the external circumference and rigidly connected to the toolholder for transmission of torque, the rotor-stator layout creates an external rotor for the electric drive. In that layout, the rotor rotates externally, with the tool holder and the stator being mounted internally of the housing.
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