Numerical control device and control method

摘要

Problem to be solved.Numerical control deviceA numerical control device for cutting a coordinate coordinate value indicated by a cutting command received from a command analysis means to a machine toolThe shape of the cut test work is measured on the machine.Measuring means for acquiring measurement data indicative of the shape of the test work measured andBased on the command shape indicated by the cutting command and the measurement data acquired by the measuring meansA dynamic correction parameter calculating means for calculating a dynamic correction parameter for correcting a dynamic error caused by force and velocity acting on the machine tool in a cutting process andBased on the calculated dynamic correction parameterDynamic correction means for correcting said dynamic error with respect to said coordinate coordinate valueEquipped withThe dynamic correction parameter calculating meansOnly the dynamic error is obtained from the comparison between the command shape and the measured data.The dynamic correction parameter is calculated from the obtained dynamic error.Diagram