The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2025
Filed:
Jul. 21, 2021
Shibaura Machine Co., Ltd., Tokyo, JP;
SHIBAURA MACHINE CO., LTD., Tokyo, JP;
Abstract
In a processing machine, an X-axis control unitX, in each control cycle Tc, controls the position of an X-axis tableX in the X-direction by feedback. The Z-axis control unitZ, in each control cycle Tc, acquires an up-close detection value of the position of the Z-axis tableZ 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 sourceso that the second deviation is reduced. The Z-axis control unitZ, in each control cycle Tc, acquires an up-close detection value of a first error comprised of a deviation of the X-axis tablein 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 workpieceand a toolin the Z-direction originating from the first error is cancelled by movement of the Z-axis tableZ in the Z-direction.