US 11,940,773 B2
Workpiece processing method and workpiece processing machine
Koji Tsuchiya, Numazu (JP)
Assigned to SHIBAURA MACHINE CO., LTD., Tokyo (JP)
Appl. No. 17/606,356
Filed by SHIBAURA MACHINE CO., LTD., Tokyo (JP)
PCT Filed Apr. 21, 2020, PCT No. PCT/JP2020/017157
§ 371(c)(1), (2) Date Oct. 25, 2021,
PCT Pub. No. WO2020/218278, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. 2019-085764 (JP), filed on Apr. 26, 2019; and application No. 2020-055747 (JP), filed on Mar. 26, 2020.
Prior Publication US 2022/0253034 A1, Aug. 11, 2022
Int. Cl. G05B 19/404 (2006.01); B23C 5/00 (2006.01); B23Q 15/12 (2006.01); G05B 19/402 (2006.01); B23C 3/00 (2006.01)
CPC G05B 19/404 (2013.01) [B23C 5/00 (2013.01); B23Q 15/12 (2013.01); G05B 19/402 (2013.01); G05B 2219/41116 (2013.01)] 6 Claims
OG exemplary drawing
 
5. A processing apparatus for processing a workpiece into a desired shape by a tool, comprising:
the tool;
a processor; and
a non-transitory memory storing a Numerical Control (NC) program that is configured to correct a position of the tool by directly inserting coded numerical instructions into the tool and instructions that, when executed by the processor, cause the processor to perform processing comprising:
incorporating an arithmetic expression for correcting a position of the tool into the NC program,
calculating a processing path along which the tool transfers based on the NC program,
calculating a cutting transfer distance for cutting the workpiece by each part of the tool from the processing path,
calculating a wear amount and a deflection amount of each part of the tool from the cutting transfer distance,
correcting the NC program by the wear amount and the deflection amount in addition to a contour error of the tool, and
performing processing by the corrected NC program.