Patent ID: 8388282

Claim:
Processing machine ( 2 ), of the type comprising: a casing ( 4 ); a tool-holder spindle ( 6 ) which extends along an axis (A) and which is to carry a machine tool ( 7 ); a positive feed drive mechanism ( 10 ) for the tool-holder spindle ( 6 ), which mechanism is suitable for driving the spindle ( 6 ) simultaneously in rotation about its axis (A) relative to the casing ( 4 ) and in translation along its axis (A) relative to the casing ( 4 ) in accordance with an advance or return movement; and a system ( 12 ) for lubricating the machine tool ( 7 ), comprising: a lubricant inlet ( 40 ); a lubricant duct ( 42 ) delimited by the spindle ( 6 ), the lubricant duct ( 42 ) opening out at an end ( 14 ) of the spindle ( 6 ) which is to carry the machine tool ( 7 ), in order to supply the machine tool ( 7 ) with lubricant; and a lubricant-admission module ( 44 ) connecting the lubricant inlet ( 40 ) to the said lubricant duct ( 42 ), characterized in that the lubricant-admission module ( 44 ) forms a lubricant pump drawing in the lubricant from the lubricant inlet ( 40 ) and supplying the lubricant duct ( 42 ) of the spindle ( 6 ) with the drawn-in lubricant, the advance and return of the spindle ( 6 ) along its axis (A) activating the pumping of lubricant by the admission module ( 44 ).