Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Katsuhiko Takeuchi0
Yutaka Inada0
Hideki Iwai0
Hiroaki Suzuki0
Tomohisa Katou0
Date of Patent
September 12, 2006
0Patent Application Number
106845470
Date Filed
October 15, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A machine tool includes X-axis, Y-axis, and Z-axis moving units for producing relative movements between a tool and a workpiece; a C-axis drive unit for rotating the workpiece about a C-axis parallel to the Z-axis; and a B-axis turning unit for turning the tool about a B-axis parallel to the Y-axis. The tool is disposed in such a manner that a machining point of the tool coincides with the B-axis. The moving units, the drive unit, and the turning unit are controlled in such a manner that a work point of the workpiece coincides with the machining point of the tool. The bed is formed through casting and has a hollow structure and a hole as cast; and a cover is provided to cover the hole as cast in order to close the interior of the bed.
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