Method and apparatus for forming wave windings for rotor and stator lamination packets of electrical machines
First Claim
1. A method for forming and introducing wave windings with straight portions, connected by winding heads, in rotor or stator lamination packets of electrical machines, characterized in that the wave windings (10), each with a defined number of waves, is cut from a continuously formed wave winding band (52) of winding wire (56) of rectangular or round cross section, which wave winding band in the forming operation by a wire guide (54) is laid in alternation around the outer side faces of forming protrusions (50), offset from one another on the circumference of two disks (46, 48), which can be driven to rotate axially side by side, or in two rows on the circumference of a roller that can be driven to rotate, and in the angular range in which the wave winding band (52) is driven on the circumference of the disks (46, 48) or roller respectively, the spacing between one forming protrusion (50) of one row and the next forming protrusion (50) in the other row is increased by such an amount that the outer side faces of the forming protrusions (50) form the winding heads (14) of the wave windings (10), and that the wave windings (10) cut from the wave winding band (52) are introduced into radially outwardly open slots (89) of a rotor or stator lamination packet or a rotorlike transfer tool (88).
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Accused Products
Abstract
A method and apparatus in which wave windings with a defined number of waves are cut from a continuously formed wave winding band. In forming with a wire guide, the wave winding band is laid in alternation around the outer side faces of forming protrusions, offset from one another on the circumference of two disks. The two disks can be driven to rotate. In the angular range in which the wave winding band is driven on the circumference of the disks or roller, the spacing between one forming protrusion of one row and the next forming protrusion in the other row is increased by such an amount that the outer side faces of the forming protrusions form the winding heads of the wave windings. The wave windings cut from the wave winding band are introduced into radially outwardly open slots of a lamination packet or a rotorlike transfer tool.
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Citations
36 Claims
- 1. A method for forming and introducing wave windings with straight portions, connected by winding heads, in rotor or stator lamination packets of electrical machines, characterized in that the wave windings (10), each with a defined number of waves, is cut from a continuously formed wave winding band (52) of winding wire (56) of rectangular or round cross section, which wave winding band in the forming operation by a wire guide (54) is laid in alternation around the outer side faces of forming protrusions (50), offset from one another on the circumference of two disks (46, 48), which can be driven to rotate axially side by side, or in two rows on the circumference of a roller that can be driven to rotate, and in the angular range in which the wave winding band (52) is driven on the circumference of the disks (46, 48) or roller respectively, the spacing between one forming protrusion (50) of one row and the next forming protrusion (50) in the other row is increased by such an amount that the outer side faces of the forming protrusions (50) form the winding heads (14) of the wave windings (10), and that the wave windings (10) cut from the wave winding band (52) are introduced into radially outwardly open slots (89) of a rotor or stator lamination packet or a rotorlike transfer tool (88).
- 17. An apparatus having a forming device for forming a wave winding band (52) and a device for introducing wave windings (10) cut from this band into radially outwardly open slots (89) of a rotor or stator lamination packet or a similar transfer tool (88), characterized in that the forming device (24) for the wave winding band (52) has two rotatable disks (46, 48) or one rotatable roller and two rows of forming protrusions (50) distributed uniformly over the circumference and offset from one another relative to the respectively other row and protruding past the circumference of the disks or roller respectively, and a wire guide (54) guided in such a way that a winding wire (56) can be placed in undulating fashion in alternation about the outer side faces of the successive forming protrusions (50) on the circumference, whose shape corresponds to the shape to be generated of the winding heads (14) of the wave windings (10).
- 35. A method for forming and introducing wave windings with straight portions, joined by winding heads, into rotor or stator lamination packets of electrical machines, characterized in that the wave windings (10) are each formed with a defined number of waves as a wave winding band of winding wire (56) of rectangular or round cross section, in that the wire from a wire guide (54) is laid in alternation around the outer side faces of forming protrusions (50) offset from one another on two rods, drivable side by side linearly in the longitudinal direction, or in two rows on one rod that is drivable linearly in the longitudinal direction.
Specification