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:
Nov. 19, 2013
Filed:
May. 12, 2010
Atsushi Matsubara, Kyoto, JP;
Iwao Yamaji, Kyoto, JP;
Daisuke Kono, Kyoto, JP;
Yusuke Koike, Kyoto, JP;
Atsushi Matsubara, Kyoto, JP;
Iwao Yamaji, Kyoto, JP;
Daisuke Kono, Kyoto, JP;
Yusuke Koike, Kyoto, JP;
Mori Seiki Co., Ltd., Nara, JP;
Abstract
A reference mirroris disposed on a table, a first laser displacement sensor Lfor measuring a machined surface of a workpiece W and a second laser displacement sensor Lfor measuring a reference surface of the reference mirrorare disposed to a tool holder. A measurement motion applying sectioncauses the tableand the tool holderto relatively move in a sinusoidal trajectory, and a sensitivity calculating sectioncalculates sensitivity of the first laser displacement sensor Lbased on machined-surface displacement data and reference-surface displacement data which are measured during the relative movement. Subsequently, an actual shape data calculating sectioncorrects the machined-surface displacement data based on the calculated sensitivity, and calculates actual shape data of the machined surface by taking the difference between the corrected machined-surface displacement data and the reference-surface displacement data.