Patent ID: 8166622
Filing Date: 2012-05-01
Classification: B23B,B24B,B44B,Y10S,Y10T

Abstract:
1. A machine for machining optical workpieces, comprising a workpiece spindle, by means of which a workpiece can be driven in rotation about a workpiece rotation axis, and a fast tool arrangement, including an actuator for reciprocating a turning tool in the direction towards the workpiece and away therefrom, wherein the workpiece spindle and the fast tool arrangement can moreover be moved relative to one another in a direction transverse to the workpiece rotation axis; the machine further comprising a tool holder which is actively connected to the fast tool arrangement so as to be reciprocated by the actuator and which tool holder carries the turning tool and, at a distance therefrom in the direction transverse to the workpiece rotation axis, carries an engraving tool, the engraving tool having an end facing towards the workpiece that is in the form of a punctiform sharp point, wherein the engraving tool can be moved in the direction towards the workpiece and away therefrom by means of the actuator of the fast tool arrangement via the tool holder, so that a marking can be produced on the workpiece by a needling engagement of the engraving tool with said workpiece, and wherein the turning tool is mounted to the tool holder so as to be selectively movable relative to the tool holder and the engraving tool in a turning tool movement direction transverse to the workpiece rotation axis.