Device for machining optical workpieces
AssigneeLo Optikmaschinen AG
InventorsManfred Hanisch, Joachim Diehl, Holger Schäfer
Life of this patent
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Abstract
A very versatile device is proposed for high-precision machining of optical workpieces, in particular optical lenses, which comprises a horizontally displaceable gantry with at least one vertically displaceable tool spindle and a yoke with workpiece holding means mounted so as to be rotatable about a swivel axis by means of journals fitted on both sides. For swivelling of the yoke without gearing and therefore without backlash, a torque motor is provided concentrically to the swivel axis, which motor is directly connected actively with one of the journals.
Claims18
A device for machining optical workpieces, in particular optical lenses, having a frame, which comprises two side walls, which support a horizontally displaceable gantry with at least one vertically displaceable tool spindle, there being a space therebetween which takes the form of a machining area, in which a yoke comprising a workpiece holding means is provided, which yoke is mounted on the side walls by means of journals so as to be rotatable about a pivot axis;
- wherein, to swivel the yoke, a torque motor is provided which is attached to a side wall of the frame concentrically to the swivel axis and is connected actively with the associated journal of the yoke.
A device for machining optical workpieces, in particular optical lenses, having a frame, which comprises two side walls, which support a horizontally displaceable gantry with at least one vertically displaceable tool spindle, there being a space therebetween which takes the form of a machining area, in which a yoke comprising a workpiece holding means is provided, which yoke is mounted on the side walls by means of journals so as to be rotatable about a pivot axis;
- wherein a horizontal slide for two tool spindles is provided on the gantry, which slide is displaceable in the direction perpendicular to the direction of movement of the gantry and which tool spindles are displaced independently of one another in the vertical direction, in particular for optional rough or fine machining of the workpiece.
A device for machining optical workpieces, in particular optical lenses, having a frame, which comprises two side walls, which support a horizontally displaceable gantry with at least one vertically displaceable tool spindle, there being a space therebetween which takes the form of a machining area, in which a yoke comprising a workpiece holding means is provided, which yoke is mounted on the side walls by means of journals so as to be rotatable about a pivot axis;
- wherein the workpiece holding means comprises two workpiece spindles, the axes of rotation of which lie in a plane with the swivel axis of the yoke.
Dependencies are inferred from the claim text.