Breaking hammer lower cylinder barrel lug plate assembling and welding positioning device

The utility model discloses a quartering hammer lower cylinder barrel lug plate assembling and welding positioning device which is characterized in that the device comprises a bottom plate, a positioning support is arranged on the bottom plate, a positioning column is arranged at the top end of the positioning support, an end positioning plate is arranged at the end of the bottom plate, and the end positioning plate is arranged on the bottom plate. Meanwhile, a pair of first positioning columns and two pairs of bottom positioning plates are further arranged in the middle of the bottom plate, limiting grooves are formed in the top ends of the bottom positioning plates, long pins are arranged in the limiting grooves in a matched mode, a pair of second positioning columns are further arranged on the top end face of the positioning support, the positioning columns are matched with inner holes of a lower cylinder barrel, and the long pins are matched with the inner holes of the lower cylinder barrel. When the lug