Axis Usa, Inc.

Axis Corporation

Massimo Lombardi

Luciano Santandrea

Sabatino Luciani

Gianluigi Pisani

Alessandro Faraoni

Massimo Ponzio

Maurizio Mugelli

Mauro Tarchi

Giuseppe Cardini

Federico Sbalchiero

Graziano Quirini

Salvatore Amato

Walter Bonura

Massimo Linari

Luciano Anichini

Enrico Ferrari

An improved conveying system in a parallel processing production line for dynamo-electric machine components having a magnetic core, the conveying system having a main conveyor extending along all of the processing machines of the production line and a load/unload device for transferring components between the main conveyor and a selected processing machine. Components to be processed are loaded directly from the main conveyor onto the load/unload device without the use of an intermediate conveyor. The load/unload device has a base platform with an alignment area at which transfer between the load/unload device and either the main conveyor or a selected processing machine occurs. Two component holders (e.g., collets) are movably mounted on the base platform for alternate positioning at the alignment area. The load/unload device alternately positions the gripping ends of the component holders adjacent the main conveyor and a selected processing machine. The central axis of the load/unload device remains fixed during movement of the load/unload device.

Method for loading and unloading dynamo-electric machine components

Dynamo-electric machine component conveying systems and load/unload

Dynamo-electric machine component conveying systems with load/unload

The balance of rotors for dynamo-electric machines (e.g., electric motor armatures), which are wound with two diametrically opposite, simultaneously applied coils of wire, is improved by ensuring that wire is fed to both coils in substantially similar quantities. This can be accomplished by monitoring the lengths of the two wires as they are fed to the armature using wire sensors located adjacent to the flyer. Alternatively, wire sensors can be provided to monitor the rate at which wire is being fed towards respective flyers and to measure the rate of change of the lengths of those portions of the wires that are supported by the winding machine dancer arms. A control system processes the measurements from these sensors. A wire tensioner having a hysteresis clutch is also provided that allows the tension applied to a wire being wound to be adjusted rapidly. The wire tensioner also picks up slack that may develop in the wire.

Methods and apparatus for tensioning wire in a winding machine

Electric motor stators can have coils wound on their poles which coils have more turns than the poles could normally support by augmenting the pole with additional structures to support the added coil turns. The additional structures can be only temporarily associated with the stator, e.g., by adding them to the winding shrouds which are customarily applied to the stator during winding. Alternatively these additional structures can be permanent but non-magnetic portion of the stator, e.g., by adding them to the terminal board members of the stator.

Stator winding method

Methods and apparatus for balancing armatures during coil winding

Armatures for dynamo-electric machines are balanced during manufacture by measuring the unbalance of the armature assembly prior to winding the coils on the armature. The numbers of turns of wire in at least some of the coils subsequently wound on the armature are then adjusted so that the unbalance of the resulting coils compensates for the unbalance of the armature prior to coil winding. In addition, masses may be added to the armature to ensure that it is balanced dynamically as well as statically.

Methods for producing dynamo-electric machine armatures with improved

A wire winding machine is provided that allows the connection of electric motor armature coil leads to slot-type commutators. The machine uses rotations of a flyer and rotations of the armature to perform much of the needed movement during the lead attachment process. The system uses a guide member to guide the wire into the commutator slots during rotation of the flyer. The guide member guides wire from the flyer toward the slots during both the initial insertion of the wire and the subsequent process of forming a loop in the wire.

Methods for winding armatures having slot commutators

Methods and apparatus for marking and identifying a commutator hook of an electric motor are provided. A preselected commutator hook is marked by deforming the hook while the armature is in a winding machine, with a known angular position. The marked hook is identified by apparatus which determines whether or not the hook has been deformed while in the winding machine, and thereby recognizing the hook.

Methods and apparatus for identifying hooks of electric motors

Stator winding apparatus

Dynamo-electric machine armatures which have commutators and cores that are axially close to one another are wound with the aid of wire guiding hooking plates that are inclined to reach into the portion of the commutator that is axially adjacent to the core where the coil leads must be attached to the commutator. The hooking plate may also perform an additional extension motion in order to press the coil leads out of the way of a subsequent fusing operation. This function may alternatively be performed by a separate pusher member which is either associated with the hooking plate or independent of the hooking plate. The fusing electrode may be specially shaped to facilitate performing fusing operations axially close to the armature core.

Dynamo-electric machine armature winding methods and apparatus

Electric motor armatures are wound by moving a wire dispensing member relative to the armature so that the wire dispensing member itself guides the wire precisely into position on the armature and so that no additional wire guides or shrouds are needed to guide the wire and keep it out of contact with portions of the armature that it should not contact. The relative motion between the armature and the wire dispensing member is preferably under programmable control so that the apparatus can be readily reprogrammed when different types of armatures are to be wound. Specially shaped wire dispensing members may be employed.

Programmably controlled armature winding methods

An apparatus for automatically adjusting the distance between two support members for carrying workpieces of different dimensions. The support members are mounted on guides that are fitted to pallets that travel on conveyor transport systems for automatic production/assembly lines. In one embodiment the support members have a locking device that frictionally secure the support members in place on the pallet and can be unlocked for movement along the guide. A positioning unit engages the pallet so that the locking device is unlocked and the support members are engaged and translated to the desired locations under the control of a drive. In a second embodiment the support members are translated along and under the control of a threaded bar. A positioning unit engages the pallet to activate the threaded bar by rotating it to translate the support members to the desired locations. The support members are independently translated using one threaded bar and the drive for each support member. The location of the support members may be determined before adjusting the support members for the dimensions of the workpiece to be supported. Devices for bringing a pallet and the positioning unit together to make the adjustment are provided.

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Florence, Italy

Massimo Lombardi