Numerical control carving machine with automatic feeding and discharging functions

The utility model discloses a numerical control carving machine with an automatic feeding and discharging function, which relates to the technical field of numerical control carving machines and comprises a base, and the top end of the base is provided with a movable frame, a cross-shaped sliding table, a fixed frame, a vacuum chuck, a carving drill bit and a positioning mechanism. The positioning mechanism is arranged, a first motor is started to drive a transmission rod to rotate, meanwhile, a plurality of cams can synchronously rotate through a transmission wheel, a synchronous belt and the transmission rod, at the moment, rollers are driven by the cams to be separated from a connecting push plate, and meanwhile through cooperation of a spring, a limiting baffle and a connecting sliding shaft, the connecting push plate is separated from the rollers. The connecting push plate drives the lifting push plate to descend, at the moment, the lifting block is driven by the connecting push plate to synchronously de