Abstract: The invention relates to a coil former (1) for winding conductor wire (100) into coil windings (101), in particular for subsequent insertion in a stator carrier, said coil former having a coil former front (2) and a coil former rear (3), wherein the coil former front (2) and the coil former rear (3) span, by means of a peripheral surface (4), a spiral winding path (P) around a spiral axis (W) for the conductor wire (100), and wherein support elements (10, 11) are arranged along the winding path (P) and protrude beyond the peripheral surface (4) and laterally delimit the spiral winding path (P). The invention also relates to a winding device (50) having a coil former (1) of this kind and to a method for operating the winding device (50).

Abstract: A method used for producing rotors and stators of electric motors, including the production of connection wires, and comprises the following steps: Winding the coil windings (12), which comprise a plurality of individual wires (14), on a wire winder (28) to which the individual wires (14) are fed from a wire supply unit (16) via a wire guide 18, 20, 22), Depositing the coil windings (12) in a draw-in tool (36), Drawing the coil windings (12) into grooves of a stator (84) or rotor body, Combining the individual wires (14) in phases by means of slide-on tubes (52) to produce the connection wires of the stator or rotor in question.

Abstract: A method to produce rotors or stators of electric machines having radial grooves into which webs of flat windings having parallel webs and winding heads connecting said webs being pulled, wherein a winding is produced on a rotating, strip-shaped flat former shorter than the winding such that windings are pulled off the former and transferred into a linear transfer device, which transports the windings to a removal position at which the windings are transferred into radial grooves of a rotor or of the transfer tool for transfer into radial grooves of a stator, wherein the former, the transfer device, and the rotor or the transfer tool being jointly rotated about an axis of rotation of the former when rotated to form windings.

Abstract: The invention relates to a method for producing a coil winding (70) for insertion into radially open slots (82) in a rotor or stator (80) of an electrical machine, wherein the coil winding (70) has a wire pack (60) consisting of a number of wires (32), wherein the wires (32) of the wire pack (60) run parallel to one another and are connected to one another in pairs at one end of the wire pack (60), and wherein the coil winding (70) is formed by a flat winding former which can be rotated about an axis of rotation (26). According to the method, the wire pack (60) is fixed on a winding former (26) and winding heads (42) are produced by displacing fixations of the wire pack (60). The winding shaft (26) can be rotated so that, after carrying out the method, a coil winding (70) is present in the form of a wave winding having wires (32) of the wire pack (60) preconnected in pairs at one end.

Abstract: A coil winding (20) that consists of a number of wires (22) braided with one another and bent multiple times in opposite directions such that mutually parallel legs (28, 30) of the wires (22) which are intended to fill the slots (16) are connected by winding overhangs (32, 34) which project from the end face of the stators (10) or rotors. The winding overhangs (32, 34) each have two oblique winding overhang sections (36, 38, 40, 42) having a winding overhang tip (44, 46) in between. The wires (22) are arranged one behind the other in a longitudinal direction (L) of the coil winding (20). The winding overhangs (32, 34), which are distributed in the longitudinal direction (L) over the entire length of the coil winding, of at least one wire (22) protrude transversely to the longitudinal direction (L) beyond the winding overhang (28, 30).

Abstract: A method to produce rotors or stators of electric machines having radial grooves into which webs of flat windings having parallel webs and winding heads connecting said webs being pulled, wherein a winding is produced on a rotating, strip-shaped flat former shorter than the winding such that windings are pulled off the former and transferred into a linear transfer device, which transports the windings to a removal position at which the windings are transferred into radial grooves of a rotor or of the transfer tool for transfer into radial grooves of a stator, wherein the former, the transfer device, and the rotor or the transfer tool being jointly rotated about an axis of rotation of the former when rotated to form windings.

Abstract: A method to produce rotors or stators of electric machines having radial grooves into which webs of flat windings having parallel webs and winding heads connecting said webs being pulled, wherein a winding is produced on a rotating, strip-shaped flat former shorter than the winding such that windings are pulled off the former and transferred into a linear transfer device, which transports the windings to a removal position at which the windings are transferred into radial grooves of a rotor or of the transfer tool for transfer into radial grooves of a stator, wherein the former, the transfer device, and the rotor or the transfer tool being jointly rotated about an axis of rotation of the former when rotated to form windings.

Abstract: The method according to the invention is used to produce a coil winding (70) which can be inserted into the grooves of a stator or rotor of an electric machine. While using a winding template (26) and a wire handling device (14), the invention proposes carrying out a displacement process between a first and a second holding region (34, 36) even before the wires (32) are initially wound onto the winding template (26) in order to produce an inclined wire section (40) which is subsequently shaped into winding heads (42) by means of a rotating/winding process. The novel method offers the advantage that all of the wires (32) of a coil winding (70) can be processed simultaneously using a comparably simple winding device (110). The projection of the winding heads (42) over the stator can also be minimized.