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:
Mar. 01, 2016
Filed:
Nov. 25, 2011
Yoshihito Fujita, Tokyo, JP;
Hiroyuki Sakoshi, Tokyo, JP;
Hiroo Nabeta, Tokyo, JP;
Mikio Nakamura, Tokyo, JP;
Yoshihito Fujita, Tokyo, JP;
Hiroyuki Sakoshi, Tokyo, JP;
Hiroo Nabeta, Tokyo, JP;
Mikio Nakamura, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
Provided is a machine tool, which is capable of highly accurately performing machining with respect to a bent surface of a subject to be machined. The machine tool fixes work (W), which has an upper flat surface (Wa) and a lower bent surface (Wb), in a state wherein the upper flat surface (Wa) is horizontally disposed, and makes a hole in the lower bent surface (Wb). The machine tool is provided with: a lower machining head (), which has rotatably mounted thereon a tool (T) that makes the hole in the lower bent surface (Wb); a lower saddle () which moves the lower machining head () in the axis direction of the tool (T); and a lower cross rail (), which is provided by being tilted, with respect to the upper flat surface (Wa), at a tilt angle (α) that is set corresponding to the curvature of the lower bent surface (Wb), and which supports the lower saddle () such that the lower saddle can move in the tilt direction of the tilt angle (α).