Patent ID: 7954403

Claim:
A workpiece carry-in/out device for a composite working lathe comprising a main spindle for gripping and rotating a workpiece, a tool spindle stock that moves along a Z axis parallel to the axis line of the main spindle and an X axis orthogonal to the Z axis and further rotates around a B axis perpendicular to a plane formed by the X axis and the Z axis, a tool magazine for supplying a machining tool and a workpiece chuck hand for gripping a workpiece to a tool spindle of the tool spindle stock in an exchangeable manner, and a cover for covering a machining area, wherein the workpiece carry-in/out device is disposed on an outer side of the cover on an opposite side from the main spindle of the composite working lathe, and the workpiece carry-in/out device comprises upper and lower conveyers, a frame having a carry-in hand for gripping a material and a carry-out tray for receiving a finished product, and a cylinder for moving the frame back and forth between the conveyer and the machining area.