Patent ID: 6886550

Claim:
Wire sawing device comprising: at least one layer of wires ( 15 ) movable with alternating or continuous movement; wire guide cylinders ( 11 , 12 ) supporting and pressing the layer of wires against a piece ( 20 ) to be sawed; an advancing means ( 19 ) providing a relative advancing movement between piece ( 20 ) to be sawed and the layer of wires ( 15 ) in a cutting direction (Z) contained in a cutting plane (YZ); an oscillatory means ( 23 ) providing a relative oscillatory movement between the piece ( 20 ) to be sawed and the layer of wires ( 15 ) about an axis of oscillation perpendicular to the cutting plane, the oscillatory means comprising an oscillation device ( 23 ) having at least one effective axis ( 28 ) of rotation and movable members ( 24 , 30 ) arranged so as to produce a relative movement of oscillation between the piece ( 20 ) to be sawed and the layer of wires ( 15 ) about an axis (A) of oscillation with a spatial position that can be adjusted and programmed such that the axis (A) of oscillation is located at a programmable and adjustable distance (Z) from the effective axis ( 28 ) of rotation; and at least one support table ( 21 ) on which the piece ( 20 ) to be sawed is fixed, the oscillation device ( 23 ) arranged to act on the support table ( 21 ), the oscillation device ( 23 ) comprising at least a first rotatable member ( 27 ) to carry out a rotation (Î±) about the effective axis ( 28 ) of rotation perpendicular to the cutting plane (YZ), the movable members of the oscillatory means comprising a second member ( 30 ), carrying out a movement in a direction parallel to the cutting plane (YZ), and a third member ( 24 ) carrying out a translatory movement in a direction coinciding with the cutting direction (Z), the rotatable element ( 27 ) mounted on the third member ( 24 ), and the second member ( 30 ) having a sliding element ( 31 , 32 ) disposed between the rotatable element ( 27 ) and the support table ( 21 ) on which the piece ( 20 ) to be sawed is fixed.