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US 2008/0290973 A1Published application
Magnetic holding apparatus for holding workpieces
OwnerUttam Sardainventor
Life of this patent
Estimating the term…
Abstract
An electro permanent magnetic apparatus with monolithic working face for holding workpieces magnetically or mechanically comprises a base plate and a ferrous monolithic working face. The base plate has a pocket or recess which houses reversible magnets and electrical windings; the working face has magnetic poles which are demarked by slots. On the opposite side of the working face recesses are provided beneath the slots for housing non-reversible permanent magnets.
Claims20
An magnetic holding apparatus for holding workpieces comprising:
- a base plate;
- a plurality of recesses provided within said base plate;
- a plurality of reversible magnets received within said recesses;
- a plurality of electrical windings received within said recesses together with said reversible magnets configured for reversing said reversible magnets upon application of an electrical current flowing through said electrical windings;
- a monolithic ferromagnetic working face arranged above said base plate and being configured for supporting workpieces;
- a plurality of magnetic poles formed within said monolithic working face demarked by slots extending from an outer surface of said working face toward said base plate;
- a plurality of non-reversible permanent magnets received below said slots within recesses of said base plate;
- wherein said non-reversible permanent magnets are configured for magnetically clamping workpieces by magnetic flow extending through said magnetic poles and through said workpieces;
- and
- wherein said reversible permanent magnets are configured for either substantially neutralizing said magnetic flow of said non-reversible permanent magnets upon activating said electrical windings with a first electrical current, thereby allowing removal of a workpiece, or for transferring said magnetic flow of said non-reversible permanent magnets through said magnetic poles to said workpiece for magnetic clamping thereof.
7 more elements
A magnetic holding apparatus for holding workpieces comprising:
- a base plate;
- a plurality of recesses provided within said base plate;
- a plurality of reversible magnets received within said recesses;
- a plurality of electrical windings received within said recesses together with said reversible magnets;
- a monolithic ferromagnetic working face arranged above said base plate and being configured for supporting workpieces;
- a plurality of magnetic poles formed within said monolithic working face demarked by slots extending from an outer surface of said working face toward said base plate;
- a plurality of non-reversible permanent magnets received below said slots within recesses of said base plate.
4 more elements
A magnetic holding apparatus for holding workpieces comprising:
- a base plate;
- a plurality of recesses provided within said base plate;
- a plurality of reversible magnets received within said recesses;
- a plurality of electrical windings received within said recesses together with said reversible magnets;
- a monolithic ferromagnetic working face arranged above said base plate and being configured for supporting workpieces;
- a plurality of magnetic poles formed within said monolithic working face demarked by slots extending from an outer surface of said working face toward said base plate;
- a plurality of non-reversible permanent magnets received below said slots within recesses of said base plate;
- wherein said slots are configured for mechanical clamping of workpieces supported upon said outer surface of said monolithic working face;
- and
- wherein said recesses are arranged underneath said working face for housing said reversible and non-reversible permanent magnets together with electrical windings and demarked magnetic poles.
7 more elements
Dependencies are inferred from the claim text.