DYNAMIC CORRECTION OF SERVO FOLLOWING ERRORS IN A COMPUTER-NUMERICALLY-CONTROLLED SYSTEM AND FIXED CYCLE UTILIZING SAME

摘要

the invention relates to computer numerical control power systems such as those designed to receive program instructions defining a desired path part (110) for movement between a tool (12) and a workpiece (w), plantwhere the path can include a curved portion to the inside or to the outside to be coordinated by a linear movement of the machine parts, along two orthogonal linear axes (x, y) at least.the invention provides apparatus and methods to correct the errors of the radius of the path (e) to facilitate the quick and accurate movement along the curve.it describes a correction radius of the path through the control of positions (52, 53, 54 and 55), which receives the service system (69) using the data of corrected beam (46), the difference between the desired and the radius (r) or partially offsetting at least the error radius of the path (s) that would otherwise be generated by the service system (69).