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:
Apr. 29, 2025
Filed:
Jul. 14, 2022
Mitsubishi Electric Corporation, Tokyo, JP;
Yamazaki Mazak Corporation, Aichi, JP;
Tomoya Fujita, Tokyo, JP;
Takeshi Kubo, Tokyo, JP;
Hiroyuki Kinoshita, Tokyo, JP;
Junji Matsuno, Tokyo, JP;
Kohei Hibino, Aichi, JP;
Takuya Hirao, Aichi, JP;
Akira Iseki, Aichi, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Yamazaki Mazak Corporation, Aichi, JP;
Abstract
A numerical controller includes: a model holding unit that holds a machine model, the machine model being a model that simulates deformation of a mechanical structure accompanying motion of the mechanical structure in axial directions and representing an error amount as an amount of displacement of a tool; a machining error estimation unit that estimates an error direction and the error amount in the error direction on the basis of axis data that is data on drive of a drive mechanism and the machine model, the error direction being a direction in which displacement of the tool occurs among the axial directions; and a correction amount arithmetic unit that selects one or more of the axes subject to correction, and performs arithmetic to find a correction amount used for correction of a command to be output to the drive mechanism for the axis selected.