公开(公告)号：US20230339060A1

公开(公告)日：2023-10-26

申请号：US18006812

申请日：2021-07-21

Applicant: SHIBAURA MACHINE CO., LTD.

Inventor： Takanobu AKIYAMA ,  Masahiko FUKUTA ,  Katsuji GAKUHARI

IPC: B23Q15/12 ,  B23Q17/22

CPC classification number: B23Q15/12 ,  B23Q17/22

Abstract: In a processing machine 1, an X-axis control unit 33X, in each control cycle Tc, controls the position of an X-axis table 9X in the X-direction by feedback. The Z-axis control unit 33Z, in each control cycle Tc, acquires an up-close detection value of the position of the Z-axis table 9Z in the Z-direction, computes a second deviation based on a difference between the acquired detection value and a target position, and controls a Z-axis drive source 23z so that the second deviation is reduced. The Z-axis control unit 33Z, in each control cycle Tc, acquires an up-close detection value of a first error comprised of a deviation of the X-axis table 9 in the Z-direction, and increases or reduces the second deviation based on the detection value of the first error so that at least a portion of an error in a relative position of a workpiece 103 and a tool 101 in the Z-direction originating from the first error is cancelled by movement of the Z-axis table 9Z in the Z-direction.