Patent ID: 7127786
Filing Date: 2006-10-31
Classification: B23Q,Y10T

Abstract:
1. A machine tool comprising, a bed; a saddle disposed on said bed to be movable in a forward and backward (Y-axis) direction in a front view of the machine; a table disposed on said saddle to be movable in a right and left (X-axis) direction; a column in a gate shape that is bridged over a travel range of said table and has right and left legs fixed on said bed and a beam connecting tops of the right and left legs, the right and left legs having an identical shape and the beam being displaced from the right and left legs toward a back face side of the machine tool; a spindle head disposed on said 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 said bed and said 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, wherein the beam includes a recess on a front face of the beam for housing said spindle head.