Axis Usa, Inc.

Gianluigi Pisani

Massimo Lombardi

Structures which facilitate changing the shrouds which are used to guide armature coil wires into the slots in electric motor armatures during armature coil winding are shown. The shrouds may need to be changed when armatures of different sizes are to be wound. The disclosed structures provide secure mounting of the shrouds, but also allow the shrouds to be removed and replaced without the need for tools. Other elements which are needed for operating on the armature may also be removably mounted, or may be mounted on the shroud so that when the shroud is changed, these other elements are also automatically changed.

Apparatus for facilitating the changing of shrouds in armature winding

Methods and apparatus for changing the collet assembly or armature-holding assembly of an armature winding machine are provided. The apparatus permits the collet assembly and selected sleeves of the armature-holding assembly to rotate about a longitudinal axis, while preventing undesirable translation along the axis. The apparatus permits translation of at least one other sleeve. The collet assembly may be removed from the armature-holding assembly to accommodate armature shafts of various diameters. Alternatively, the entire armature-holding assembly may be removed and replaced as a single unit, to accommodate commutators of various diameters. The change-over process can be automated.

Tool changing apparatus for an armature winding machine

An armature gripping machine for transferring an armature of an electric motor or similar machine from one location to another, to load or unload a processing station of a production line is provided. The collet and surrounding tube of the gripping machine can be changed quickly and automatically, to accommodate a differently sized armature shaft. A fluid-fed piston mechanism within the gripping machine translates the collet tube along a longitudinal axis, causing the collet to grip or release an armature shaft. The collet may be removed from the gripping machine and replaced with a differently sized collet to accommodate armature shaft of various diameters. Alternatively, the collet and surrounding tube may be removed and replaced as a single unit to accommodate larger variations in armature shaft diameters. The change-over process can be automated.

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Florence, Italy

Gianluigi Pisani