Method and device for the surface machining of workpieces...

Details Method and device for the surface machining of workpieces... Method and device for the surface machining of workpieces...

2006-01-31

2006-01-31

Rose, Robert A. (Department: 3723)

Abrading

Machine

Combined

C451S461000, C407S053000

Reexamination Certificate

active

06991525

ABSTRACT:
A device is disclosed for the surface machining of, among other things, plastic spectacle lenses, which has a work spindle, by means of which the spectacle lens can be driven with a controlled angle of rotation about an axis of work rotation, and a tool spindle, by means of which a tool can be driven to rotate about an axis of tool rotation, work and tool spindle being movable relative to one another with their positions controlled in two axes running at right angles. For rotational machining of the surface of the spectacle lens to be machined, the tool can also be swiveled by means of the tool spindle with a controlled angle of rotation about the axis of tool rotation, so that a rotational cutting edge provided on the tool can be brought into a defined rotational machining engagement with the surface of the spectacle lens to be machined as a function of the angle of rotation of the spectacle lens. Also included is a combined milling and rotational machining tool and a combined milling and rotational machining method. As a result, high cutting rates and very good surface qualities can be easily and efficiently achieved in the surface machining.

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Durbin, Charles E. and Martin W. Burnham, SPIF vol. 93 Advances in Precision Machining of Optics (1976), p. 32-37.

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