Patent ID: 7991501
Filing Date: 2011-08-02
Classification: G05B,Y02P

Abstract:
1. A method of determining a work surface of a planar material for cutting a plate of a uniform thickness from a planar material, comprising the steps of: setting, with a surface plate of a measuring device as coordinates (X, Y), orthogonal coordinates (X, Y, Z) composed of the coordinates (X, Y) and a Z coordinate perpendicular to the coordinates (X, Y) on the surface plate, and mounting a planar material as an object to be measured on the surface plate; virtually configuring a plane ABCD that is parallel to the XY plane; setting the distance or height from the coordinates (X seeking a maximum and minimum value of Z subsequently fixing end A of the virtual plane ABCD and respectively moving end B and end C vertically at a prescribed deflection width B, C regarding a predetermined maximum deflection width and pitch in the Z-axis direction so as to tilt the virtual plane ABCD against the surface plate on the computer; calculating the distance or height Z repeating the calculation for all predetermined B and C combinations, and determining the virtual plane ABCD with the smallest value of H(B, C) calculated in all B and C combinations as a plane that is parallel to a plane of minimum machining cost.