Oil way distributor of numerical control lathe

The utility model relates to the technical field of numerical control machine tools, in particular to an oil way distributor of a numerical control machine tool, which can avoid oil leakage and save disassembly and assembly time, comprises a swivel joint, and is characterized in that the swivel joint is connected with one end of an oil distribution core shaft penetrating through a machine tool main shaft, and the other end of the oil distribution core shaft is connected with a transition disc; an oil way inlet and an oil way outlet are formed in the transition disc, the oil distribution mandrel is sleeved with a middle supporting sleeve, an anti-loosening flange and an adjusting flange, the middle supporting sleeve is in clearance fit with the inner wall of the machine tool spindle, and the adjusting flange and the anti-loosening flange are used for connecting and fastening the swivel joint and the oil distribution mandrel. A shaft shoulder nut used for locking is arranged at the front end of the middle suppo