Machine center with two machining devices with tool change position

A machining center comprising:

• a machine base provided with rails;
• a workpiece support proximal to said machine base and adapted to hold at least one workpiece to be machined;
• a workpiece holder on said machine base movable on said rails on said base between a pick-up position in which a workpiece is acquired by said holder from said workpiece support, to a machining station in which a workpiece on said holder is machined and back to a position in which said workpiece holder can release a machined workpiece onto said workpiece support, said holder retaining said workpiece between said rails during movement between said positions and said machining station;
• at least two machining devices on said base at said machining station having respective machining tools rotatable about respective axes on the respective device;
• drives for relatively displacing said holder and said machining devices to bring said workpiece into machining relationship with said tools at respective machining positions of each of said devices at the machining station;
• and
• respective tool-change positions for each of said machining devices spaced from the respective machining position in a direction parallel to a respective rotation axis of the respective device whereby each of said devices is shiftabl parallel to the respective rotation axis from the resp ctive machining position to the respective tool-change position.