Abstract: An automatic armature winding machine that is capable of winding straight and skewed stack armatures of various diameters and lengths and of achieving high percentages of slotfill is disclosed. A transfer plate for directing a plurality of wires for winding the core of the armature to a winding area in preparation for the winding operation is mounted in translational relationship to the armature core to be wound. The wires within the concentration area are simultaneously wound into the slot of the armature core by moving the wires through the armature core so that the wires are forced into the slots of the armature core. Upon completing the first winding stroke, hydraulic actuated forming blocks are radially activated to push the wires further into the slots of the armature core to make space for the subsequent turns to be wound. Thereafter, the winding stroke is repeated by moving the wires back through the armature core, after which the blocking function is repeated.

Abstract: A commutator placing machine includes means for feeding armatures to a loading position where they are indexed to a preset angular position, means for feeding commutators to a loading position, and means for orienting the commutators prior to installation onto the armature shaft. An index slide or shuttle is provided to impart a rotational component of force to ensure that the commutator is properly positioned with respect to a locator tab. A proximity sensor indicates when the commutator is in its proper position, and if the commutator is not properly positioned, then the index slide is first retracted and then again extended in an attempt to seat the commutator properly. Guide rails are provided to ensure that the commutator maintains its orientation from its loading position to its final position on the armature shaft.