DOUBLE-FLYER ARMATURE WINDER FOR SLOT TYPE COMMUTATOR ARMATURES ACM87

The machine is destined for the automatic winding of armatures with stack diameter of 53 mm and slot type commutator I.D. 35.8 mm. Minimum of adjustments and tooling are required for the machine to be set to process workpieces of various diameters and sizes including different shaft length. Main machine components are:
- machine frame;
- workpiece angular positioning unit;
- wire guiding and processing mechanism;
- flyers;
- wire tensioning devices;
- workpiece feeding manipulator;
- mechanism for checking of commutator angular positioning with respect to the armature stack;
- workpiece conveyor with shifting mechanism;

The machine frame is made out of square steel tubes and solid plates.
The angular positioning unit ensures the orientation of the armature during the winding process. The workpiece spindle drive is actuated by means of servo-electric motor through HTD belt transmission. The spindle unit carries a collet mechanism for the workpiece shaft clamping.
The wire-guiding and wire-processing mechanism consists of set of units that perform insertion of the coil ends into the commutator slots and their caulking.
Two winding mechanisms (flyers) are provided on both sides of the armature for winding of the wire. The winding process is performed by means of servo-electric motors through belt transmissions that actuate the rotation of the two flyers. Flyer winding speed, as well as acceleration during the working process are controlled by PLC as part of the program parameters. Quality of winding is acquired by appropriate altering of parameter values.
The machine is equipped with wire-tensioning mechanisms featuring mechanical feedback and pneumatic alteration of the wire tension force during the various steps of the working cycle. The machine program controls the process by means of electro-pneumatic proportional valve.
The workpiece-feeding manipulator orientates precisely the angular position of the armatures with respect to the stack slots and carries them from the entry magazine to the working zone and back.
The mechanism for checking of commutator angular positioning with respect to the armature stack: after workpiece positioning and clamping inside the loading collet, commutator angular orientation is checked with respect to the armature stack, thus allowing fault detection.
The workpiece conveyor together with its shifting mechanism ensures workpiece loading/unloading and transportation.
Machine controls and mechanics allow performing of various types of winding diagrams by using the touch screen control panel, providing easy access to the main menu and fast changing of menu pages. Up to 30 programs can be stored in machine memory, saving information about armature type, winding diagram, wire-tension force etc. All working operations are performed accurately and in time saving way, so to reduce the total cycle time. Wire-tension force adjustment during the working cycle, as well as the design of the wire-tensioning device and wire-contact elements allow preserving wire coating and avoiding cross-section reduction. Armature winder is reliable and flexible machine proving quality products in high production rate.