The invention discloses a five-axle linkage digital-control
processing centre which comprises a lathe
bed (10) and a
portal frame (30), wherein the
portal frame (30) comprises a left portal upright post (32), a right portal upright post (32) and a fixing portal crossbeam (35), and the front part of each portal upright post (32) is provided with a direct driving type double-shaft precise rotating table (20) which enables a working table (26) to simultaneously rotate round an A shaft and a C shaft. Furthermore, the
portal frame (30) is provided with a crossbeam (40) which can move along the Y direction, the front part of the crossbeam (40) is provided with a slide
carriage (50) which can move along the X direction, the front part of the slide
carriage (50) is provided with a main shaft box (60) which can move along the Z direction, the main shaft box (60) is provided with a main shaft installing hole (66) used for installing a main shaft (70), and a tool
magazine (80) is arranged in a cavity positioned between the lathe
bed (10) and the portal frame (30). The invention has novel structure, small occupied area, space saving, low cost and stable operation and property. Besides, a motion shaft of a
machine tool has high dynamic property, regulating property, positioning precision and repeated positioning precision.