Procedure to qualify the accuracy of a numerical control system

摘要

A method of rating the accuracy of a machining system having a machine (40) multiejecon numerical control and a fitting (30) flexible for clamping the workpieces (W) amecanizar, and passing perform operations machining after qualifying, wherein the procedimientocomprende: mounting a probe (70) measuring contact on a spindle (62) of the machine where machine tool would normally be mounted for processing, check the accuracy of positioning of the machine (40 ) moving the machine (40) to make lasonda (70) contacts a reference element (M) fixedly mounted in a known position, maneraque the probe (70) measures a position of the reference element (M), and passing to the next step only if laposición measured by the probe of the reference element (M) is within a first toleranciapredeterminada of the known position, and check the accuracy of posicionami ent accessory (30) clamping by moving the machine (40) parahacer the probe contact each of a plurality of elements (32) holding fixture (30) have been placed in positions determined within a unit (36 ) delaccesorio numerical control (30) holding that controls the positioning of the elements (32) fastening of maneraque probe (70) measures a position of each element (32) fastening; pass machining operations only if the measured position of the probe of each element (32) desubjugation that has been checked is within a second predetermined tolerance with respect to certain laposición inside the unit (36) of numerical control accessory ( 30) fastening; characterized in that: the accuracy of the fixture is checked after checking the delposicionamiento precision machine; wherein checking the accuracy of the positioning of the fixture comprendecomparar the positions measured by the probe of each of the fasteners with posicionesdeseadas, determining delta values ​​representing the differences between the ydeseadas actual positions and consider the delta values ​​in the software of the numerical control unit and then perform a subsequent verification calibration by placing the fitting in various configuracionesdiferentes with the clamping elements in different positions to those used in the initial check dela positioning precision attachment clamping, and calculate the second delta values ​​for cadaconfiguración, wherein the physical action is performed if the second delta values ​​exceed a threshold límitede; wherein the method further comprises: loading a workpiece in the fixture once past the checks and sondearuna series of setpoints, primary and secondary, on the workpiece to verify the piezade work is located in the appropriate location relative to the machine.