Turning – Process of turning
Patent
1998-04-14
2000-09-26
Tsai, Henry W. H.
Turning
Process of turning
82118, 82128, 82134, 82 13, B23B 100
Patent
active
061229997
ABSTRACT:
In one form, the disclosure describes a lathe apparatus and method for manufacturing a product with a non-axisymmetric shape from a workpiece, such as a toric contact lens, comprises a spindle for rotating the workpiece about an axis of rotation, a cutting tool, a two-axis bed for supporting the cutting tool and for moving the cutting tool along a predetermined path adjacent the workpiece as the spindle rotates the workpiece, and a mechanism for oscillating the cutting tool along an oscillation axis as the two-axis bed moves the cutting tool along the predetermined path, wherein the oscillation axis is oriented at a non-zero angle with respect to the axis of rotation. Preferably, the non-zero angle is about 45.degree.. In a second form, a lathe apparatus comprises a rotary bed for arcuately moving a cutting tool adjacent a workpiece and a mechanism for translationally reciprocating the cutting tool as the cutting tool is arcuately moved adjacent the workpiece.
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Variform Toric Generator, Rank Pneumo, Keene, NH 03430 publication.
Durazo Armando
Mannor Charles
Morgan Drew
Gearhart Richard I.
Meece R. Scott
Novartis AG
Tsai Henry W. H.
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