Machine tool having two tool spindles

A machine tool, comprising:

• two vertically oriented tool spindles, each of the two tool spindles being movable vertically in a first direction and horizontally in a second direction, which is orthogonal to the first direction,
• two workpiece support devices for supporting and clamping workpieces to be machined,
• a first tool change magazine and a second tool change magazine that are arranged in a stationary manner,
• a first tool storage magazine and a second tool storage magazine that are arranged in a stationary manner,
• a first transfer device that is arranged to transfer tools between the first tool change magazine and the first tool storage magazine, and
• a second transfer device that is arranged to transfer tools between the second tool change magazine and the second tool storage magazine,
• wherein at least one of the two workpiece support devices is movable horizontally in a third direction, which is orthogonal to the first direction and the second direction,
• wherein the two tool spindles and the two workpiece support devices are mounted on a common machine frame that defines a common working space,
• wherein the two tool spindles are movable parallel to one another in the second direction and are facing one another,
• wherein the machine frame has two portal beams that extend in the second direction and parallel to one another,
• wherein a first tool spindle of the two tool spindles is mounted on a first portal beam of the two portal beams,
• wherein a second tool spindle of the two tool spindles is mounted on a second portal beam of the two portal beams,
• wherein the first tool spindle is movable in the first direction with respect to the first portal beam, and in the second direction along the first portal beam,
• wherein the second tool spindle is movable in the first direction with respect to the second portal beam, and in the second direction along the second portal beam,
• wherein each of the first tool change magazine and the second tool change magazine comprises a respective inner end, which is permanently arranged in the common working space, so that accessibility for one of the first tool spindle and the second tool spindle for a pickup tool change is provided,
• wherein the first tool change magazine and the first tool storage magazine are associated with the first tool spindle,
• wherein a first virtual straight line, which is oriented parallel to the vertically-extending first direction, extends through the first tool change magazine and the first tool storage magazine,
• wherein the second tool change magazine and the second tool storage magazine are associated with the second tool spindle,
• wherein a second virtual straight line, which is oriented parallel to the first direction, extends through the second tool change magazine and the second first tool storage magazine,
• wherein each of the first transfer device and the second tool transfer device is arranged externally to the footprint of the machine frame so as to be disposed completely outside of the common working space,
• wherein the first tool storage magazine comprises each of a respective inner end and a respective outer end that are spaced away from one another in the second direction,
• wherein the second tool storage magazine comprises each of a respective inner end and a respective outer end that are spaced away from one another in the second direction,
• wherein the first tool change magazine and the first tool storage magazine are offset at their respective inner ends in the second direction so that only the first tool change magazine is accessible to the first tool spindle for the pickup tool change, and
• wherein the second tool change magazine and the second tool storage magazine are offset at their respective inner ends in the second direction so that only the second tool change magazine is accessible to the second tool spindle for the pickup tool change.