Title:
工作機械
Document Type and Number:
Japanese Patent JP5577166
Kind Code:
B2
Abstract:
A machine tool tier machining a bar-shaped workpiece loaded in a first orientation includes first and second chucks, first and second driving parts, a machining tool and a control part. Each of the first and second chucks has a workpiece drop opening that opens toward the outside in a radial direction from a middle portion of the first or second chuck. The first and second driving parts are respectively provided to rotate the first and second chucks. The machining tool is configured to machine the workpiece clamped by at least one of the first and second chucks. The control part is configured to control clamping of the workpiece by the first and second chucks and to control rotation angles of the first and second chucks by the first and second driving parts to change an orientation of the workpiece from the first orientation to a second orientation.
Inventors:
Masahiro Shoji
粟谷 Hiroshi
Shin-ya Yamada
粟谷 Hiroshi
Shin-ya Yamada
Application Number:
JP2010143340A
Publication Date:
August 20, 2014
Filing Date:
June 24, 2010
Export Citation:
Assignee:
Komatsu NTC, Inc.
International Classes:
B23B5/18; B23B3/30
Attorney, Agent or Firm:
fresh green -- a global IP patent business corporation