Tapping mechanism of tapping machine

The utility model discloses a tapping mechanism of a tapping machine, which comprises a motor, the bottom of the motor is connected with a telescopic upper rod, the bottom of the telescopic upper rod is connected with a telescopic lower rod, the outer ring of the telescopic lower rod is sleeved with a gear, and the top of the gear is provided with a first fixing block. Through cooperative use of a first fixing block, a second fixing block, a first connecting plate, a second connecting plate, a first fixing ring and a second fixing ring, the device can achieve the effect of tapping a plurality of bottom holes, and the first fixing block and the second fixing block limit a gear to an interlayer between the first connecting plate and the second connecting plate; a rotating rod gear is fixed to an interlayer between a first connecting plate and a second connecting plate through a first fixing ring and a second fixing ring, when an electric cylinder drives the rotating rod gear to ascend and descend, the gear can