Patent ID: 7367867
Filing Date: 2008-05-06
Classification: B24B

Abstract:
1. A two-side working machine, comprising an upper working disc engaged to an upper carrier disc and a lower working disc engaged to a lower carrier disc, the upper working disc and the lower working disc being disposed coaxially with each other and being adapted to be rotationally driven relative to each other by a working motor via a driving shaft, wherein the working discs have formed therebetween a working gap in which flat workpieces are processed on both sides, and a distance measuring device which measures the distance between working discs in at least two radially spaced points of the working gap, characterized in that the upper carrier disc is suspended on a supporting ring which is connected to the upper working shaft so as to be fixed for rotation, an annular portion of the upper carrier disc and force generating means which are externally controllable by the supporting ring and via which a radial force is applied to the circumference of the carrier disc about the circumference of the supporting ring, and control means are provided which adjust the force on the force generating means in dependence on the distance values measured by the distance measuring device or the pressure values measured by a force sensing device, respectively.