MACHINE TOOL WITH MOVABLE TOOL HOLDER DEVICES

The present invention relates to a machine tool (1) for machining workpieces， comprising: ase (2) for supporting， in use， at least one workpiece to be machined; a supporting structure (3) which is movable above said base (2) along a first axis (X)， and which substantially extends along a second axis (Y); operative means (4， 5; 104) which are associated with said supporting structure (3) and movable relative to said supporting structure (3) along said second axis (Y) and along a third axis (Z)， which is orthogonal to said first axis (X) and said second axis (Y)， said operative means (4， 5; 104) being configured to receive， in use， at least one tool (U， L) for machining said at least one workpiece; a first device (6， 105) for carrying at least one tool (U)， said first device (6， 105) being relatively movable relative to said operative means (4， 5; 104) between a respective resting position， where said first device (6， 105) is at a predetermined distance from said operative means (4， 5; 104)， and a respective operative position， where said first device (6， 105) is placed in such a way as to allow the exchanging of at least one tool (U) between said first device (6， 105) and said operative means (4， 5; 104); and a second device (13， 103) for carrying at least one tool (L)， said second device (13， 103) being movable relative to said supporting structure (3) between a respective resting position， where said second device (13， 103) is at a predetermined distance from said operative means (4， 5; 104)， and a respective operative position， where said second device (13， 103) is placed in such a way as to allow the exchanging of at least one tool (L) between said second device (13， 103) and said operative means (4， 5; 104); wherein said first device (6， 105) in the respective resting position and said second device (13， 103) in the respective resting position are above each other.