Winding machine and method for producing coil windings on an externally grooved winding support of a rotor or stator of an electrical machine, and winding system

A winding machine for producing coil windings on an externally grooved winding support of a rotor or stator of an electrical machine, comprising:

• a receiving device for receiving an externally grooved winding support, wherein the receiving device has a longitudinal axis which, in a state in which an externally grooved winding support is received on the receiving device, lies on a longitudinal axis of the externally grooved winding support;
• and
• a plurality of winding devices arranged around the receiving device, wherein
• each of the winding devices has a wire supply means which is configured to move a winding wire along a feed direction and thus to guide the winding wire towards the receiving device,
• each of the winding devices has a drive system which is configured to move the wire supply means relative to the receiving device and independently of the wire supply means of the other winding devices during a feed movement of the winding wire in accordance with a winding movement in such a way that the winding wire is wound around a winding tooth of an externally grooved winding support received on the receiving device in order to form a coil winding, and
• the receiving device has a rotary drive by means of which the receiving device is rotatable about its longitudinal axis and which is configured to rotate the receiving device in accordance with the winding movement in such a way that the respective winding wire is wound around the respective winding tooth of the externally grooved winding support received on the receiving device in order to form a respective coil winding.