NF Z68-020

<p>This International Standard describes a machine coordinate system related to the primary motions of individual</p> <p>numerically controlled machines and the associated machine motions.</p> <p>The machine coordinate system is used to provide the coordinates of a moving tool (or a point in the working space</p> <p>or on the drawing) with respect to a stationary workpiece. Thus a programmer can describe the machine operations</p> <p>without having to know whether the tool approaches the workpiece or the workpiece approaches the tool.</p> <p>NOTE 1 Individual numerically controlled machines means that all axes are mounted on one base or frame and all motions</p> <p>are related to one standard coordinate system.</p> <p>NOTE 2 For the sake of simplicity the majority of the text of this International Standard is written in terms accorded to</p> <p>machine tools but nevertheless accorded to numerically controlled machines in general. Coordinate systems and axis motion</p> <p>nomenclature for industrial robots is defined in ISO 9787, <i>Manipulating industrial robots — Coordinate systems and motion</i></p> <p><i>nomenclatures</i>.</p>