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:
Jan. 06, 2026
Filed:
Mar. 10, 2023
Okuma Corporation, Niwa-Gun, JP;
Tetsuhisa Ogawa, Niwa-Gun, JP;
Okuma Corporation, Niwa-Gun, JP;
Abstract
A displacement compensation device for a machine tool includes a temperature information acquiring unit, a floor information acquiring unit, a displacement amount computing unit, and a compensating unit. The temperature information acquiring unit acquires temperature information from a temperature sensor. The floor information acquiring unit acquires floor information using a floor state sensor measuring a state of a surface or an inside of a floor on which a machine tool is installed. The displacement amount computing unit calculates an estimated displacement amount of the machine tool with a preset displacement estimation formula using the temperature information acquired by the temperature information acquiring unit and the floor information acquired by the floor information acquiring unit as inputs. The compensating unit compensates an axis command value based on the estimated displacement amount calculated by the displacement amount computing unit.