COMPENSATION OF TOOL DEFLECTION BY DYNAMICALLY ADJUSTING THE TOOL GEOMETRY

Abstract: a machine tool numerical controller receives a parts program which determines a path along which a workpiece should be machined in a material-removing manner by a machining tool. the numerical controller determines control commands by utilising the parts program and controls the position-controlled axes according to the determined control commands. the numerical controller determines the control commands such that the workpiece is machined in a material-removing manner by the machining tool along the path determined by the parts program. during the machining of the workpiece, the numerical controller receives, in real time, actual values characteristic of a machining force exerted on the machining tool and takes a geometrical measurement of the machining tool and the machining force into consideration in the determining of the control commands. during the machining process, the geometrical measurement is varied dynamically and in real time according to the machining force.

Inventor(s): THOMAS PITZ, RALF SPIELMANN

CPC Classification: G05B19/404 (CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables ; systems for regulating electric or magnetic variables ; control devices or systems insofar as characterised by mechanical features only ))

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