Patent ID: 8683897
Filing Date: 2014-04-01
Classification: B23Q,Y10T

Abstract:
1. A turning machine for producing non rotationally symmetric surfaces of synthetic spectacle lenses, comprising a support plane (E), a machine bed with a width b 1 , a linear motor with an actuator comprising a turning tool holder and an oscillation axis Z, a workpiece spindle with a rotational axis C and a movement axis X, wherein the machine bed comprises at least two bearing surfaces arranged at a distance for the linear motor and for the workpiece spindle, and between the two bearing surfaces, a chip space is provided which is limited at least partially by the machine bed, wherein the linear motor is supported on the first bearing surface and the workpiece spindle is supported on the second bearing surface in relation to the chip space opposite the linear motor, wherein the mass of the machine bed has the maximum value m 1 , wherein the value m 1 lies between 100 kg and 500 kg.