Cylinder tapping device for special pressure-bearing equipment

The invention provides a barrel tapping device for special pressure-bearing equipment, and belongs to the technical field of machining. An automatic butt joint device is mounted on the mounting supporting part; the mounting supporting part is slidably connected with a trepanning positioning device; a trepanning pushing part is connected to the trepanning positioning device in a sliding manner; a driving device is mounted on the trepanning positioning device; the trepanning positioning device is fixedly connected with two linkage air injection devices; a cleaning sliding part is connected to the trepanning positioning device in a sliding manner; a positioning adjusting device is mounted on the cleaning sliding part; a wiping dust removal part is fixedly connected to the positioning adjusting device; the deburring effect is better, meanwhile, auxiliary air blowing and dust removal can be achieved through linkage, the overall adaptability is higher, and the tapping concentricity is high; the problems that non-sh