Cutter maintenance mechanism for numerical control machine tool

The utility model relates to the technical field of cutter maintenance, in particular to a cutter maintenance mechanism for a numerical control machine tool. According to the technical scheme, the device comprises a box body, a clamping disc and an oiling mechanism, the oiling mechanism comprises a lifting frame, an oil box is fixedly installed in the lifting frame, an oiling sponge roller is installed at the top of the lifting frame through a reset spring, an oil absorption cotton strip extending into the oil box is fixedly installed at the bottom of the oiling sponge roller, and clamping holes are formed in the clamping disc at equal intervals; and a clamp is movably mounted in the clamping hole. The two sets of oiling sponge rollers are driven by the reset springs to elastically reset, so that when the oiling sponge rollers oil cutters of different specifications, the elastic force of the reset springs is utilized to drive the oiling sponge rollers to elastically reset to fit the surfaces of the cutters of