Importance

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Abstract

For two-side processing of optical lenses, the invention provides that blanks to be used for each lens body (7) comprise a chucking extension (18) whereby a single machine is sufficient for implementing the procedure. In addition to workpiece spindles (1, 2) as well as tool spindles (4, 5) with coarse tools (8) and finishing tools (9), the machine also includes an unloading device (10) and a loading device (13) which in successive interacting operations take the lens body (7) when processed on one side and at the circumference from a chucking tool (12) of the tool spindle (1) and turn it round for centered insertion in its inverted position into a chucking tool (15) of the tool spindle (2) for processing on the other side. The workpiece spindles (1, 2) may be mounted parallel to each other on a horizontally displaceable and vertically adjustable feed slide (3). A feed carriage (6) may displace and slew the tool spindles (4, 5) together with the unloading device (10) around a horizontal B axis. The loading device (13) is slewable around a further horizontal axis (C) between the workpiece spindles (1, 2) and the tool spindles (4, 5).

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First Claim