US 2006/0218764 A1Published application

Machine tool

AssigneeMori Seiki Co., Ltd.

InventorsHiroshi Hashimoto, Hiroyuki Tsuchiya, Tsutomu Tokuma

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Abstract

To provide a machine tool in which a workpiece can be delivered to/from a first and a second spindle headstock without any increase in front/back direction dimension of a machine main body. A second spindle headstock 4 is capable of moving to a position for workpiece delivery to/from a first spindle headstock 3 so as to be close to or to abut on the first spindle headstock 3. When the second spindle headstock 4 is positioned at the workpiece delivery position, a tool post 5 is positioned right under the first spindle headstock 3 so that its cutting point “c” is positioned vertically under an axis “a” of the first and second spindle headstocks 3, 4.

Claims7

Dependent claims

A machine tool comprising:

a bed;
a first spindle headstock disposed on said bed;
a second spindle headstock disposed to be coaxial with said first spindle headstock and to be movable in an axis (Z-axis) direction;
and
a tool post disposed between said first spindle headstock and said second spindle headstock to be movable in the axis direction,
wherein said second spindle headstock is movable up to a position for workpiece delivery to/from said first spindle headstock, and
wherein said tool post has:
a turret to which a plurality of tools are attached;
and a supporting member by which the turret is supported to be movable in an up/down (X-axis) direction, and when said second spindle headstock is positioned at the workpiece delivery position, the turret is positioned between the first and second spindle headstocks under the axis and a cutting point of the tool post is positioned vertically under the axis.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/376,565Filed 16 Mar 2006
Priority: JP 2005-08560224 Mar 2005
Published: 5 Oct 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B23Q 39/028
The sub-assemblies being capable of being brought to act at a single operating station: with a plurality of workholder per toolhead in operating…
B23Q 2039/004
Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation: machines with tool turrets
B23Q 2039/008
Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation: machines of the lathe type
B23Q 2230/006
Special operations in a machine tool: machining both ends of a workpiece consecutively

Family

US 7,204,004 B2Related patent
US 2006/0218764 A1This patent

From the US filing history. Foreign family members aren’t listed.

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