Machine tool for the production of base structures for false...

Details Machine tool for the production of base structures for false... Machine tool for the production of base structures for false...

2005-06-14

2005-06-14

Wellington, A. L. (Department: 3722)

Gear cutting, milling, or planing

Milling

With regulation of operation by templet, card, or other...

C409S098000, C409S103000, C409S124000

Reexamination Certificate

active

06905293

ABSTRACT:
The invention relates to an automatic machine tool, for the production of base structures, for false teeth, in particular, for tooth crowns and/or tooth bridges of exact three-dimensional shape. Said base structures may be fixed to prepared natural and/or artificial tooth stumps. The machine tool comprises a machine frame, or a body, a work piece carrier, with a rotation shaft, at least one digitization unit, at least one machining unit and an electronic arithmetic and control unit for all drive lines. A carrier for the workpiece, a blank, and/or for the machining unit(s), serves as displacement unit, with three translational axes in the x-, y- and z-directions. The digitization of the preparation model and the machining of the blank are carried out on the same machine tool, at different times. The machining paths for the blank are calculated from the measured and stored digitized data and a predetermined material-specific scaling factor, before the machining of the blank.

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