Machine tool

A machine tool,

• with a machine bed (1),
• with a pair of x-guide rails (3) arranged on the machine bed (1) and extending in a horizontal x-direction,
• with two x-slides (4, 4′) displaceably arranged for displacement in the x-direction on the x-guide rails (3),
• with a respective z-slide (9, 9′) arranged on each x-slide (4, 4′) and displaceable in a horizontal z-direction extending perpendicular to the horizontal x-direction,
• with a respective stand (13, 13′) arranged on each z-slide (9, 9′) with an upper side (21, 21′) and a front side (15, 15′),
• with a respective y-slide (17, 17′) arranged on each front side (15, 15′) and displaceably arranged for displacement in a vertical y-direction extending perpendicular to the x-direction and to the z-direction up to close to the upper side (21, 21′),
• wherein each y-slide (17, 17′) is displaceable by means of a respective y-spindle spindle nut drive (22, 22′) and
• wherein each of the y-spindle spindle nut drives (22, 22′) is rotationally drivable by means of a respective y-drive motor (19, 19′), which is arranged on the respective stand (13, 13′) below the respective upper side (21, 21′) thereof,
• with a respective tool spindle (24, 24′) which is arranged on each y-slide (17, 17′), which each tool spindle
• is rotationally drivable about a respective rotation axis that extends in the z-direction,
• is non-displaceable relative to the respective y-slide (17, 17′) in the z-direction and
• has a tool holder (26, 26′) at an end of the respective tool spindle that is located in front of the respective front side (15, 15′),
• with a working chamber (14) arranged in front of the front sides (15, 15′),
• with a workpiece carrier (27) arranged in the working chamber (14) on the machine bed (1),
• with at least one respective workpiece holder (30) associated with each stand (13, 13′) and arranged on the workpiece carrier (27),
• with a common bridge (33) provided directly above the upper side (21, 21′) of each stand (13, 13′),
• with at least one tool magazine (34, 34′) arranged directly above the upper sides (21, 21′) of the stands (13, 13′) on the bridge (33) and
• with a respective tool changer (39, 39′) provided on the bridge (33) to transfer tools (37, 37′) from the at least one tool magazine (34, 34′) to the respective tool holder (26, 26′) and vice versa, the respective stand (13, 13′) being movable below the at least one tool magazine (34, 34′) for the tool change in such a way that the respective tool holder (26, 26′) is located below the respective tool changer (39, 39′).