Patent ID: 11940773
Assignee: SHIBAURA MACHINE CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC G  B | IPC B  G

Claim 5:
6. A method for generating an Numerical Control (NC) program for processing a workpiece into a desired shape by a tool by directly inserting coded numerical instructions into the tool, the method comprising:
incorporating into the NC program an arithmetic expression for correcting a position of the tool;
incorporating into the arithmetic expression a normal unit vector and a variable for correcting a contour error of the tool in a normal direction of a processing point;
calculating, based on the NC program, a processing path through which the tool transfers;
calculating, from the processing path, a cutting transfer distance in which each part of the tool cuts the workpiece;
calculating, from the cutting transfer distance, a wear amount and a deflection amount of each part of the tool; and
correcting the NC program by the wear amount and the deflection amount in addition to the contour error of the tool.