METHOD AND DEVICE FOR CONVERTING/PREPARING NUMERICAL CONTROL PROGRAM FOR MACHINE TOOL AND NUMERICALLY CONTROLLED MACHINE TOOL

摘要

PURPOSE: To improve working accuracy without increasing working time and to shorten the working time without reducing the working accuracy. ;CONSTITUTION: A program look-ahead means prereads an original numerical, control program, a shape recognizing means 44 previously recognizes a working shape and an optimum feeding speed computing means 45 computes an optimum feeding speed for suppressing an error to less than a fixed value based upon the working shape. Then an error amount computing means 46 computes an error amount δ to be generated when working is executed at the optimum feeding speed, a correction vector computing means 47 sets up a correction vector based upon the error amount δ and a correcting means 48 corrects the moving locus of a tool.;COPYRIGHT: (C)1994,JPO