MACHINE TOOL - MITSUBISHI HEAVY IND LTD

Title:

MACHINE TOOL

Document Type and Number:

WIPO Patent Application WO/2012/117628

Kind Code:

A1

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 (25), which has rotatably mounted thereon a tool (T1) that makes the hole in the lower bent surface (Wb); a lower saddle (24), which moves the lower machining head (25) in the axis direction of the tool (T1); and a lower cross rail (23), 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 (24) such that the lower saddle can move in the tilt direction of the tilt angle (α).

Inventors:

FUJITA YOSHIHITO (JP)
SAKOSHI HIROYUKI (JP)
NABETA HIROO (JP)
NAKAMURA MIKIO (JP)

Application Number:

PCT/JP2011/077125

Publication Date:

September 07, 2012

Filing Date:

November 25, 2011

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUBISHI HEAVY IND LTD (JP)
FUJITA YOSHIHITO (JP)
SAKOSHI HIROYUKI (JP)
NABETA HIROO (JP)
NAKAMURA MIKIO (JP)

International Classes:

B23B39/16; B23Q1/64; B23B41/00; B23Q1/56; B23Q1/60; B64F5/00

Foreign References:

JP2010201986A	2010-09-16
JP2002178041A	2002-06-25
US5033178A	1991-07-23
JP2005125414A	2005-05-19
JPS5889496A	1983-05-27

Other References: