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AssigneeMarsilli S.P.A.
InventorGian Battista PARATI
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A method and an automatic winding machine for making high quality windings on pole pieces of rotors of electric motors with the direct in slot winding technique, thus overcoming the problem related to the elasticity of the pack of laminations that defines the body of the rotor, are described. While winding, the conducting wire is guided by means of a wire guiding cap movable in the rotor slots between which the pole piece to be wound at that moment extends. The body of the rotor is compacted by means of a pressing device internal to the wire guiding cap. The axial pressing of the body, performed parallel to the rotation axis Z of the rotor for preventing the umbrella effect, is thus formed thanks to a specific device integrated into the wire guiding cap, i.e. by exploiting the volume inside the wire guiding cap and providing the axial pressing device therein.
A method of making a winding (7) of conducting wire (8) on a pole piece (4) of a rotor (1) of electric motor, by means of in slot technique, wherein, while winding, the conducting wire (8) is guided by means of a wire guiding cap movable in the rotor slots between which said pole piece extends, characterized by axially pressing the body of the rotor by means of a device internal to the wire guiding cap.
A winding machine of in slot type, for making windings of conducting wire on the pole pieces of rotors of electric motor, comprising:
Dependencies are inferred from the claim text.