Abstract: A magnetic apparatus for anchoring ferrous elements may include a support structure housing a plurality of polar units. The support structure has first and second sides at opposite surfaces. The polar units may include: a coil having a support and a conductive element wound on the support; a first magnetic core with a first coercive value, generating a first magnetic flow oriented in a first magnetic direction; and a plurality of second magnetic cores, each having its own coercive value different from the first coercive value. A first part of the second magnetic cores generates a second magnetic flow oriented in a second magnetic direction. A second part of the second magnetic cores generates a third magnetic flow oriented in a third magnetic direction. The third magnetic direction is parallel or antiparallel to the first magnetic direction and has a different direction with respect to the second magnetic direction.

Abstract: The present invention refers to a magnetic device for clamping ferromagnetic workpieces comprising a frame having a first magnetic circuit configured to generate a first magnetic field adapted to clamp a ferromagnetic workpiece to be processed; a second magnetic circuit configured to generate a second magnetic field adapted to clamp said ferromagnetic workpiece to a machine tool bed; said first magnetic circuit and said second magnetic circuit being adapted to be controlled to turn on and/or off independently one from the other. The modular magnetic device is characterized in that it comprises first and second mechanical and electrical connection means for mechanically and electrically connecting said magnetic device, when in operation, to corresponding second and first complementary mechanical and electrical connection means of other modular magnetic devices located adjacent thereto, to create a series of modular magnetic devices mechanically and electrically connected together.

Abstract: The present invention concerns a magnetic apparatus for magnetic clamping of ferrous elements (P1), comprising a support structure (11) with at least one pole piece (30A) held within its thickness (S), first and second sides (12, 13) being formed in said support structure (11, 11A) at the opposed larger surfaces, said pole piece (30A) comprising at least one first pole piece collector (50), said first pole piece collector (50) being adapted to convey at least one first magnetic flux (F1) generated by said magnetic apparatus to said first side (12, 13). The invention is characterized in that said at least one first pole piece collector (50) is held within the thickness (S) of said support structure (11) and is formed of one piece with said support structure (11).

Abstract: The present invention relates to a movable pole extension (4) for a magnetic clamping apparatus (1) for holding a ferromagnetic workpiece (P), comprising a fixed pole member (5) extending in a predetermined longitudinal direction (X-X) and at least two pole members (6, 7) attached to said fixed pole member (5), said at least two pole members (6, 7) being movable relative to said fixed pole member (5). The movable pole extension is characterized in that it has holder means (8) operably coupled to said fixed pole member (5), wherein said holder means (8) are movable in said predetermined longitudinal direction (X-X) between a first operating position (P1) and a second operating position (P2) and operate on said at least two movable pole members (6, 7) to hold them in coupled contact with said fixed pole member (5).

Abstract: A one-piece multipole plate for a magnetic clamping apparatus, a process for making such plate and a magnetic apparatus having such plate. The magnetic apparatus has a plurality of pole pieces and the plurality of pole pieces extend from the plate and are formed of one piece with the plate.

Abstract: The present invention relates to magnetic anchorage equipment comprising a frame able to contain a plurality of polar units, each of the plurality of polar units having a ferromagnetic polar element which identifies an anchorage surface and a self-testing unit for checking the magnetic equipment. The magnetic anchorage equipment is characterized in that the self-testing unit for checking the magnetic equipment is at least partly integrated in the frame.

Abstract: A one-piece multipole plate for a magnetic clamping apparatus, a process for making such plate and a magnetic apparatus having such plate. The magnetic apparatus has a plurality of pole pieces and the plurality of pole pieces extend from the plate and are formed of one piece with the plate.

Abstract: The present invention relates to a one-piece multipole plate for a magnetic clamping apparatus, a process for making such plate and a magnetic apparatus having such plate, wherein the magnetic apparatus has a plurality of pole pieces and said plurality of pole pieces extend from said plate and are formed of one piece with said plate.

Abstract: The present invention relates to a device for fastening two elements to one another, comprising a rod-like member having opposite ends which are aligned on a common longitudinal axis (X-X) and a threaded portion formed in the region of a first end. A characteristic of the rod-like member is that it comprises a tapered portion formed in the external wall of the rod-like member, the tapered portion having the vertex of its taper facing towards the threaded portion and a taper angle (?), measured relative to the longitudinal axis (X-X), that is within a range variable between 2° and 6°.

Abstract: The present invention relates to a one-piece multipole plate for a magnetic clamping apparatus, a process for making such plate and a magnetic apparatus having such plate, wherein the magnetic apparatus has a plurality of pole pieces and said plurality of pole pieces extend from said plate and are formed of one piece with said plate.

Abstract: A magnetic pallet (1) for anchorage of a ferromagnetic part to be taken for machining to a machine tool with horizontal tool axis, the magnetic pallet (1) including a base plate (3), a vertical parallelepiped shoulder (5) extending from the base plate (3), a first plurality of magnetic conductors (15) arranged in a matrix and which can be polarised magnetically so as to define a first surface for vertical magnetic anchorage of ferrous parts at a first lateral face (4) of the shoulder (5). The base plate (3) and the shoulder (5) are formed from a single ferromagnetic monolithic block, and in that from the ferromagnetic monolithic block, at the first lateral face (4) of the shoulder (5), a first recess (7) is formed for housing the first plurality of magnetic conductors (15).

Abstract: A manual magnetic anchoring device includes a monolithic ferromagnetic block, whereon a housing for stator magnets, a housing for a rotor core, a ferromagnetic crown for short circuiting of the magnetic flux during deactivation of the anchoring device, and at least a first and a second collector pole defining a working surface for anchoring a ferrous part are formed in one single piece.

Abstract: A magnetic gripping apparatus, of the permanent magnet type, comprising a base plate and peripheral walls, at least a first and a second pole units, each pole unit comprising a main pole piece having an outer face defining a gripping surface, main permanent magnets arranged between said main pole pieces and said base plate, an intermediate pole member between said first and second pole units, said intermediate pole member extending from the base plate to the gripping surface and secondary magnets between the pole members and the pole pieces; a first electrical windings encircles each main magnet, said electrical winding being operatively conected to a control unit, and a residual flux eliminating circuit comprising a second electrical winding encircling said intermediate pole member, said second winding being operatively connected to a demagnetizing control unit.

Abstract: A magnetic gripping apparatus for gripping metal parts on machine tools, conveyor systems and the like. The apparatus comprises an external ferromagnetic yoke having a base plate and lateral walls; a first and at least a second pole unit, each unit comprising a main pole piece having an outer face defining a work-gripping surface parallel to said base plate; and an intermediate pole member between said first and second pole units, said pole member extending from the base plate to the gripping surface, and permanent magnets arranged at least between the main pole pieces, the base plate and an electric winding encirling the magnets between the main pole pieces and the base plate, said permanent magnets, in an activated condition of the apparatus, providing a pole distribution on the gripping surface in which said first and second pole units exhibit poles of opposite polarity on their outer faces.

Abstract: A magnetic holding device, comprising magnetically activable holding surface having pole members of different polarities, and at least a first and a second single-pole extension members for said pole members of opposite polarities. Each pole-extension member comprises a base portion fastened to a pole member and a movable portion sliding on said base portion along an inclined surface the sliding surfaces of said first and second pole-extension members are slanted in opposite angular directions in respect to said holding surface of the device.