AUTOMATIC ARMATURE WINDING

• US 3,783,501 A
• Filed: 07/19/1971
• Issued: 01/08/1974
• Est. Priority Date: 04/01/1969
• Status: Expired due to Term

• Current Assignee: Statomat-Globe, Inc.
• Original Assignee: Clarence W. Donnaker, John M. Biddison
• Inventors: Biddison, John M., Donnaker, Clarence W.
• Primary Examiner(s): Herbst, Richard J.
• Assistant Examiner(s): Hall, Carl E.
• Application Number:
  US05/163,978
• Time in Patent Office: 904 Days
• Field of Search: 29/596,597,598,605,25R,25C 242/7.03,7.5B,7.5A,7.5C,7.5R 310/233,234,236
• US Class Current: 29/597
• CPC Class Codes: H02K 13/04 Connections between commutator segments and windings
• CPC Class Codes: H02K 15/09 by laying conductors into slotted rotors
• CPC Class Codes: Y10T 29/49011 Commutator or slip ring assembly
• CPC Class Codes: Y10T 29/5176 including machining means
• CPC Class Codes: Y10T 29/53143 Motor or generator

Abstract

In the automatic winding of armatures, the last lead wire from a coil wound in an armature is looped about an appropriate commutator tang and the wire portion connected between the newly wound armature and an unwound armature is cut closely adjacent the aforementioned commutator tang. Also disclosed is a double flier apparatus for winding armatures, wire cutting assemblies, and a transfer mechanism adapted to hold the connecting wire portions in a position where they may be cut closely adjacent the tangs about which the wires are looped. In one embodiment the commutator tangs are collapsed at the time the connecting wire portions are cut.

Claims

1. In a method of automatically winding armatures, the armatures being of the type having an armature core and a commutator with wire lead receiving tangs, the armature core and the commutator being mounted on a common shaft, the method being of the type wherein an armature is wound and lead wire connections are formed at a winding station by a machine including a pair of rotating fliers for winding coils and capable of simultaneously winding pairs of coils, and the wound armature is removed from the winding station and replacd by an unwound armature, the improvement comprising:

looping the lead wires leading from each of the last coils wound by each flier on the wound armature about a respective pair of tangs by steps including relative movement of said armature and said fliers, engaging one of the wires leading from its associated one of said last mentioned tangs to its associated flier with first wire engaging means and thereby causing a portion of said one of the wires to lie along a first path located in a plane nearly perpendicularly intersecting Said shft, engaging the other of the wires leading from its associated one of said last mentioned tangs to its associated flier with second wire engaging means and thereby causing a portion of said other of the wires to lie along a second path located in a plane nearly perpendicularly intersecting said shaft, and severing said wire portions immediately adjacent said last mentioned tangs.

2. The method of automatically winding armatures with commutators having tangs for lead wire connections between wound coils of the armatures comprising the steps of supporting an unwound armature between a pair of fliers, rotating the fliers to form pairs of coils in the armature slots and forming lead wire connections between coils until the armature is fully wound, looping the wires leading from the last coils wound into the armature slots by each of said fliers about pre-selected commutator tangs with connecting wires extending from said last mentioned tangs to the fliers, removing the newly wound armature from its position between the fliers, holding parts of the connecting wires outwardly from the armature shaft and generally coplanar with the end face of the commutator from which the tangs extend, and cutting the connecting wires immediately adjacent the said pre-selected commutator tangs.

3. The method of claim 2 wherein the newly wound armature is removed by means including clamp means clamping surfaces of the armature while substantially simultaneously engaging parts of the connecting wires by a pair of hook means located substantially diametrically of the commutator, the hook means retaining said parts of the connecting wires outwardly from the armature shaft and nearly coplanar with said end face of the commutator until said connecting wire portions are cut.

4. The method of claim 3 further including the step of bending a portion of said last mentioned tangs to clamp the wires looped thereabout substantially simultaneously with the cutting of the connecting wires.