Mori Seiki Co., Ltd.

Shunsuke Nakazawa

Kazuyuki Hiramoto

Akihiro Mochizuki

Satoshi Matsui

Ryosuke Yasumura

Nobuhiro Kaneda

The present invention provides a machine tool capable of reducing residual vibration occurring at the location time, thereby achieving responsiveness to a recent demand for higher acceleration/deceleration speed. The machine tool is configured such that a columnis fixed on a bed, a spindle headfor supporting a spindleis disposed on a front face' of the columnto be movable in a Z-axis direction, and a pair of right and left Z-axis ball screws (spindle drive shafts)for driving the vicinity of the gravity center of the spindle headis disposed on the front face&#x2032; of the columnto be symmetrical to each other with respect to a plane that includes an axis C of the spindle headand is parallel to a Y axis, thereby driving the vicinity of the gravity center of the spindle head

Machine tool

The present invention provides a machine tool whose width dimension is not increased even when it includes a tool magazine. The present invention includes: a bed; a saddle disposed on the bed to be movable in a forward and backward (Y-axis) direction in a front view of the machine tool; a table disposed on the saddle to be movable in right and left (X-axis) direction; a column fixed on the bed a spindle head disposed on the column to support a spindle and movable in a vertical (Z-axis) direction; an automatic tool changer disposed on a back face side of the column, wherein the column has an opening which allows the back face side and a front face side of the column to communicate with each other, and the automatic tool changer replaces a tool on the spindle side by a tool on a tool magazine side through the opening.

The present invention provides a machine tool capable of enhancing approachability to a spindle to improve work efficiency even when it includes a workpiece changer. The present invention includes: a bed; a saddle disposed on the bed to be movable in a forward and backward (Y-axis) direction in a front view of the machine tool; a table disposed on the saddle to be movable in a right and left (X-axis) direction; a column having a shape of a gate bridged over a travel range of the table and fixed on the bed; a spindle head disposed on the column to support a spindle and movable in a vertical (Z-axis) direction; a workpiece changer that turns a workpiece together with a pallet or turns the workpiece independently, for workpiece replacement, between a workpiece standby position set on a back face side of the bed and the table placed at a workpiece change position, the workpiece changer being disposed so as to set the workpiece change position at a position under the column.

The present invention provides a machine tool capable of achieving a higher feed rate of a spindle and weight reduction while ensuring necessary stiffness of a column. The present invention includes: a bed; a saddle disposed on the bed to be movable in a Y-axis direction in a front view of the machine; a table disposed on the saddle to be movable in an X-axis direction; a column having a shape of a gate that is bridged over a travel range of the table and has right and left legs fixed on the bed and a beam connecting tops of the right and left legs; and a spindle head disposed on a front face of the beam to be movable in a Z-axis direction.

The present invention provides a tool changer of a machine tool capable of suppressing cost increase and preventing size increase of the machine when a tool magazine is mounted. In a tool changer of a machine tool provided with a pallet change mechanismin which a machining-side palletdisposed on a machining area A side and a standby-side palletdisposed on a standby area B side are turned around a turn shaftby a turning memberto be automatically changed, a tool magazineholding a plurality of tools Tto Tis disposed between the machining-side palletand the standby-side palletin the turning memberand the tool magazineis turned by the turning memberso that the tools Tto Tface a spindledisposed on the machining area A side.

Tool changer of machine tool

The present invention provides a machine tool capable of enhancing chip discharge efficiency and improving work efficiency with improved approachability to a spindle. A machine tool according to the present invention is structured such that a recessionwith a back face side and an upper face side thereof opened is formed at a center portion of a bed, Y-axis guide railsand Y-axis ball screws (drive shafts)for guiding and driving the saddleare disposed on right and left saddle supports (edges)of the recessionand are covered with right and left Y-axis cutting covers, the right and left Y-axis cutting coversare formed in an inclined shape with the recessionside thereof becoming lower, and a chip receptorfor discharging chips dropped into the recessionto a back face side of the bedis disposed in the recession

Growing community of inventors

Yamatokoriyama, Japan

Shunsuke Nakazawa