Punching device for building

The invention discloses a punching device for building. The a punching device for building comprises a loading plate and a movable frame connected with the loading plate in a moving fit mode; the bottom of the loading plate is provided with a loading seat, and a left-right intercommunicating movable groove is formed in the loading plate; and the movable frame comprises a bottom transverse plate, aleft vertical plate and a right vertical plate, wherein the bottom transverse plate is connected with the movable groove in a moving fit mode, the left vertical plate is arranged at the left end of the bottom transverse plate and connected with the left end face of the loading plate in a moving fit mode, and the right vertical plate is arranged at the right end of the bottom transverse plate andconnected with the right end face of the loading plate in a moving fit mode. According to the punching device for building, the overall structure is simple, the production cost is low, the front-backposition of a drill bit is