Pipe punching equipment

The utility model discloses a pipe punching device. The device comprises a cutter and a base, a supporting column is arranged on the base. Supporting tables are arranged at the upper ends of the supporting columns; a pipe supporting base is arranged on the supporting table, a notch is formed in the pipe supporting base, a matched cutting knife is arranged at the notch, the cutting knife is installed on a cutting knife installation base, the cutting knife installation base is connected with a first air cylinder, the first air cylinder is connected with a vertical supporting rod through a horizontal connecting rod, and the vertical supporting rod is welded to the base. A tie bar is further installed on the upper surface of the cutting knife installation base, a vertical bearing is arranged on the tie bar, the outer wall of the vertical bearing is welded to one end of an L-shaped supporting rod, and the other end of the L-shaped supporting rod is welded to the supporting table. A plurality of cutting knives can