Magnetic pallet for anchorage of ferromagnetic parts for machining by machine tools with horizontal tool axis

• US 7,038,566 B2
• Filed: 09/05/2002
• Issued: 05/02/2006
• Est. Priority Date: 09/10/2001
• Status: Expired due to Fees

• Current Assignee: Tecnomagnete S.P.A. (Autoblok SpA)
• Original Assignee: Tecnomagnete S.P.A. (Autoblok SpA)
• Inventors: Cardone, Michele
• Primary Examiner(s): Barrera, Ramon M.
• Application Number:
  US10/488,996
• Publication Number:
  US 20040233026A1
• Time in Patent Office: 1,335 Days
• Field of Search: 335285-295, 269/8
• US Class Current: 335/289
• CPC Class Codes: B23Q 3/1543 using electromagnets
• CPC Class Codes: B23Q 3/1546 using permanent magnets
• CPC Class Codes: B25B 11/002 Magnetic work holders

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).

Claims

1. A magnetic pallet (1) for the anchorage of a ferrous part to be taken for machining by a machine tool with horizontal tool axis, said magnetic pallet (1) comprising 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 magnetic anchorage surface at a first lateral face (4) of said shoulder (5), characterised in that said base plate (3) and said shoulder (5) are formed from a single ferromagnetic monolithic block, and in that in said ferromagnetic monolithic block, at said first lateral face (4) of said shoulder (5), a first recess (7) is provided for housing said first plurality of magnetic conductors (15).

2. A magnetic pallet (1) according to claim 1, characterised in that said monolithic block is in ferromagnetic steel.

3. A magnetic pallet (1) according to claim 1, characterised in that said first plurality of magnetic conductors (15) has a parallelepiped shape with horizontal axis orthogonal to said first lateral face (4) of said shoulder (5), and in that a first plurality of primary reversible permanent magnets (17) is provided, each of said reversible permanent magnets (17) being surrounded by a corresponding electrical induction coil (19) and being interposed between the back of said recess and the axially internal base of a corresponding magnetic conductor (15) of said first plurality of magnetic conductors (15), each of said reversible permanent magnets (17) having the horizontal polarisation axis orthogonal to said axially internal base of said corresponding magnetic conductor (15).

4. A magnetic pallet (1) according to claim 1, characterised in that said monolithic block is in ferromagnetic steel.

5. Method for the production of a magnetic pallet (1) for the anchorage of a ferromagnetic part to be taken for machining to a machine tool with horizontal tool axis, characterised in that it provides the following phases of machining of a ferromagnetic monolithic block:

formation from said monolithic block of a base plate (3);

formation from said monolithic block of a vertical parallelepiped shoulder (5) extending from the base plate (3); and

formation from said monolithic block of at least a first recess (7) for housing a corresponding first plurality of magnetic conductors (15) arranged in a matrix and which can be polarised magnetically so as to define a first magnetic anchorage surface at a first lateral face (4) of said shoulder (5).