Five-axis linkage numerical-control machine tool

The invention relates to a five-axis linkage numerical-control machine tool which comprises a frame, an X-axis motion device, a Y-axis motion device, a Z-axis motion device, a tool motion device, an A-axis motion device and a C-axis motion device. The Y-axis motion device comprises a Y-axis frame, two Y-axis lead screws, a Y-axis stepping motor and a Y-axis motor base; the X-axis motion device comprises an X-axis fixing seat, an X-axis lead screw, an X-axis stepping motor and an X-axis motor seat; the Z-axis motion device comprises a Z-axis fixing seat, a Z-axis lead screw, a Z-axis stepping motor and a Z-axis motor seat; the tool motion device comprises a tool motor, a fixture and a tool; the A-axis motion device comprises two A-axis frames, an unthreaded shaft, a flipping and fixing plate and an A-shaft stepping motor; the C-axis motion device comprises a C-axis stepping motor, a C-axis motor seat and a rotating plate. By the arrangement, the scope of machining can be increased on the premise of improving the machining accuracy, and stability and reliability of the machine tool can be improved at the same time.