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. 02, 2019
Filed:
Oct. 13, 2015
Okuma Corporation, Niwa-Gun, JP;
Eisuke Sogabe, Niwa-Gun, JP;
Seiei Yamamoto, Niwa-Gun, JP;
Okuma Corporation, Niwa-Gun, JP;
Abstract
A method for controlling a temperature adjustment system of a machine tool is provided. With the method, a temperature rise value ΔTof a main spindle device after stopping of rotation of a main spindle is obtained by using a reference temperature measured by a machine body temperature sensor mounted in a portion other than the main spindle device of a machine tool to calculate an estimated temperature y. Therefore, as compared to a conventional method based only on a temperature of a cooling medium, supply of the cooling medium by a cooling device can be stopped or an operation of the cooling device can be switched from a first mode to a second mode without deteriorating machining accuracy in the main spindle device, thereby efficiently reducing power consumption.