Patent ID: 8615317

Claim:
A process for generating control data for controlling a tool on a machine tool comprising at least 5 axes for machining a workpiece for the production of a predetermined finished part having a base body and at least one flank section protruding from the base body, wherein the process comprises the steps of: determining fundamental geometry parameters of a finished part geometry of the finished part, the finished part geometry corresponding to a geometry of the predetermined finished part; generating finished part geometry data of the predetermined finished part geometry of the finished part by means of the fundamental geometry parameters, the finished part geometry data indicating a geometric shape of a surface of the flank section; and generating path data by means of the finished part geometry data, the path data indicating the tool path along the surface of the flank section over which the tool has to travel with what tool orientation relative to the workpiece to remove material from the workpiece, the tool orientation of the tool corresponding to an orientation of an axis of rotation of the tool and the tool rotating about the axis of rotation of the tool to remove material from the workpiece, wherein the finished part geometry data for indicating the geometric shape of the surface of the flank section comprises position data of a group of points on the surface of the flank section, the position data indicating a position of the points of the group of points, each point of the group of points is attributed to a column of points and a line of points, all points of a column of points lying in a common plane and the common plane of the points of a column of points being perpendicular to a tangent plane of a lateral surface of the base body, the tangent plane of the base body being a tangential plane relative to the lateral surface of the base body in a common point of the common plane with the lateral surface of the base body, the path data is generated such that the tool path is parallel to a curve extending through the points of a first line of points, the path data is furthermore generated such that at each of the points of the first line of points the axis of rotation of the tool orients itself by the common plane of the column of the respective point of the first line, and the finished part geometry data for indicating the geometry of the surface of the flank section furthermore comprises normal data with respect to a first point of the group of points, the normal data indicating a direction of a normal vector of the surface of the flank section at the first point, the path data being furthermore generated such that at the first point the axis of rotation of the tool is perpendicular to the normal vector at the first point.