Patent ID: 7204004

Claim:
A machine tool comprising: a bed; a first spindle headstock disposed on said bed, said first spindle headstock having a tunnel shape having a pair of leg parts and a spindle case part disposed between upper ends of the leg parts; a second spindle headstock disposed to be coaxial with said first spindle headstock along a Z-axis and to be movable in the Z-axis direction; and a tool post disposed between said first spindle headstock and said second spindle headstock to be movable in the Z-axis direction, wherein said second spindle headstock is movable to a position for workpiece delivery to and 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 and 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 Z-axis and a cutting point of the tool post is positioned vertically under the Z-axis, and wherein the supporting member of the tool post is movable into and out of the tunnel of the first spindle headstock.