Abrégé

A method and a plant for making packs of metal sheets forming rotors or stators of electric machines or the like by stacking a predetermined number of metallic sheets and stably connecting those sheets along at least two weld beads in opposing or different angular positions, include providing at least one subgroup of the metallic sheets defining the pack of sheets, and disposing, at least at one region of reciprocal contact of the surfaces of the sheets, one or more adhesive substances that solidarize the sheets of the subgroup. The one or more adhesive substances can be activated by chemical-physical action, and the solidarization of the subgroups of sheets is carried out before stacking with the remaining sheets of the pack, or in one or more steps subsequent to the stacking, simultaneously or separately to the application of the weld beads.

Classes IPC  ?

• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
• B23K 37/04 - Dispositifs ou procédés auxiliaires non spécialement adaptés à un procédé couvert par un seul des autres groupes principaux de la présente sous-classe pour maintenir ou mettre en position les pièces
• F16B 5/08 - Jonction de feuilles ou de plaques soit entre elles soit à des bandes ou barres parallèles à elles par soudage ou procédés similaires

Abrégé

A method and a plant for making packs of metal sheets forming rotors or stators of electric machines or the like, by stacking a predetermined number of metallic sheets and connecting them in a stable way along at least two weld beads opposing one another or at different angular positions, providing for at least a subgroup of said metallic sheets constituting the said pack of sheets, at least at one region of the reciprocal contact surfaces of the sheets, substances of mutual adhesion for the solidarization of the sheets of the subgroup, which substances can be activated by chemical-physical action, and which solidarization of the subgroups of sheets is carried out:- before the stacking with the remaining sheets of the pack or- in one or more steps subsequent to the stacking in the pack of sheets, simultaneously or sepa-rately to the application of said weld beads.

Abrégé

A method for automatically forming bundles of metal laminations, adapted for armatures of electrical machines or the like, by automatic precision dosing of a lamination bundle produced by picking up and separating a preset number of laminations, includes grabbing, at one end of a lamination stack, a preset number of laminations; separating the number of laminations of the bundle from the lamination stack by axially moving the bundle away from the lamination stack by a preset distance; detaching one or more laminations, if any, at the end of the lamination bundle facing the lamination stack, which may have remained adherent to a last intended lamination by being clamped by a part of their thickness or glued to the lowest lamination of the lamination bundle; and collecting the lamination or laminations, if any, detached from the lamination stack end in a position axially aligned with the laminations of the stack.

Classes IPC  ?

• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
• B21D 43/24 - Dispositifs pour retirer les tôles d'une pile
• B65G 59/06 - Désempilage par le bas de la pile
• B65H 3/32 - Enlèvement des articles des piles par des éléments, passant entre les articles à enlever et le reste de la pile, p. ex. par des doigts, plaques, rouleaux
• H02K 15/021 - Noyaux magnétiques

Abrégé

The invention concerns a device and a method for manufacturing armatures from metal laminations, and especially stators and/or rotors, which have a rotational symmetrical shape and consist of a plurality of segments with predetermined angular extent with respect to the symmetry axis, the segments consisting of packs of laminations having shape and size equal to one another, the laminations being overlapped in a reciprocally coincident position and being in a predetermined number, each pack of laminations being intended to form a segment, whereas each segment is provided with at least one indentation and/or with at least one appendage interlockingly coupling with a corresponding appendage and/or a corresponding indentation of an adjacent pack of laminations, the whole of a predetermined number of said reciprocally coupled segments forming at least one layer with partial height and/or partial number of laminations of said armature. The invention provides to make in parallel or contemporaneously at least two layers of an armature and to overlap said two layers to one another and to the preceding layers each time, by carrying out a radial compacting of the segments forming the layers before the welding operation.

Classes IPC  ?

• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques

Abrégé

Method for automatically forming bundles of metal laminations, for the formation of armatures of electrical machines, or the like, by automatic precision dosing of a lamination bundle (p') consisting in picking up and separating a preset number of laminations, based on a preset height of the bundle (p') itself, from a lamination stack (p) higher than said bundle (p'), the method comprising the following steps: - Grabbing at one end of the lamination stack (p) the preset number of laminations (L) corresponding to the height of the lamination bundle (p'), - Separating said number of laminations (L) of the bundle (p') from said lamination stack (p) by axially moving the bundle (p') relatively away from the lamination stack (p) by a preset distance, - Carrying out an action of detaching one or more laminations (L'), if any, at the end of said lamination bundle (p') facing the lamination stack (p), the potential last lamination or laminations having erroneously remained adherent to a lamination of the lamination bundle (p') intended to be the last lamination of said bundle, said one or more potential last laminations being precariously clamped by a part of their thickness or being moderately glued to the lowest lamination in the lamination bundle (p') though being instead intended to be the first lamination of the lamination stack facing the separated lamination bundle (p'), - Collecting said lamination or laminations, if any, detached on the lamination stack end facing the bundle in a position axially aligned with the laminations of said stack (p).

Classes IPC  ?

• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
• B21D 43/24 - Dispositifs pour retirer les tôles d'une pile
• B65H 33/02 - Formation de lots comptés dans les piles ou dans le courant de délivrance des articles en déplaçant une lame ou pièce analogue dans la pile
• B65G 59/06 - Désempilage par le bas de la pile

Produits et services

Automatic machines for making metal rotors for electric machines; automatic machines for making metal stators for electric machines; electric welding machines; automatic welding machines; robotic welding machines; electric welding machines; radiator welding machines (electric -); robotic electrical welding apparatus; moulding machines; components for electric motors for land vehicles, namely rotors for electric motors and stators for electric motors; machines for assembling electric motors; automated assembly machines; robotic machines for assembling electric motors; dispensing machines for gluing parts for electric motors; machines for lubricating materials; machines for cleaning materials; lamination coating machines. Dimensional inspection machines for use in the assembly of electric motors; geometric inspection machines for electric motors; apparatus inspection machines for electric motors.

Produits et services

Automatic machines for making metal rotors for electric machines; automatic machines for making metal stators for electric machines; electric welding machines; automatic welding machines being electric; robotic welding machines being electric; robotic electric arc-welding apparatus; [ injection molding machines; ] components for electric motors for land vehicles, namely, internal combustion engine land vehicle parts, namely, distributor rotors and stators being parts of machines for electric motors; machines for assembling electric motors; automated assembly machines for assembling stators and rotors; robotic machines for assembling electric motors; [ electric adhesive tape dispensing machines for gluing parts for electric motors; machines for lubricating materials; machines for blast cleaning a surface; ] lamination coating machines for industrial use Dimensional inspection machines for the automated physical inspection of electric motors for use in the assembly of electric motors; geometric inspection machines for the automated physical inspection of electric motors; apparatus inspection machines for the automated physical inspection of electric motors

Produits et services

Automatic machines for making metal rotors for electric machines; Automatic machines for making metal stators for electric machines; Electric welding machines; Automatic welding machines; Robotic welding machines; Electric welding machines; Radiator welding machines (Electric -); Robotic electrical welding apparatus; Moulding machines; Components for electric motors for land vehicles; Machines for assembling electric motors; Automated assembly machines; Robotic machines for assembling electric motors; Dispensing machines for gluing parts for electric motors; Machines for lubricating materials; Machines for cleaning materials; Lamination coating machines. Dimensional inspection machines for use in the assembly of electric motors; Geometric inspection machines for electric motors; Apparatus inspection machines for electric motors.

Abrégé

The present invention relates to a compressed air scraper (10, 12, 14, 16', 16") for cleaning the outer surface (6) of a guide element (4a-4c) or of a stem (4d-4g) of a linear actuator (2). Said scraper (10, 12, 14, 16', 16") comprises a scraper body (8, 18, 20) which defines at least a first aperture (22) suitable for being connected to a compressed air source or to a suction source, a through chamber (24, 26) for the partial and sliding housing of the guide element (4a-4c) or of the stem (4d-4g) parallel to said main axis (X; Y), and one or more second apertures (28, 30, 36, 68), supplied through the first aperture (22) and configured to place the through chamber (24, 26) in fluidic communication with the outside environment, so that a flow of air generated by said source shifts or removes deposits, residues, impurities or the like from the outer surface (6). The invention also relates to a scraping assembly (1) comprising a scraper (10, 12, 14, 16', 16") as described above.

Classes IPC  ?

• F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
• F16J 15/40 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par un fluide