Drill hole depth adjusting device for vertical multi-shaft drilling component of multi-row multi-shaft drilling machine tool

The utility model discloses a drill hole depth adjusting device for vertical multi-shaft drilling component of multi-row multi-shaft drilling machine tool, which comprises a lifting cylinder for driving a vertical multi-shaft drilling component to lift, and also comprises a transmission mechanism, an original position stroke switch adjusting mechanism, a drill hole depth stroke switch adjusting mechanism, a box body and a connection sleeve, the upper end and the lower end of the connection sleeve are respectively connected with a cylinder body of the lifting cylinder and the box body, an upper end of a piston rod of the lifting cylinder is connected with the vertical multi-shaft drilling component, a lower end thereof is connected with a driving tooth bar, the driving tooth bar is engaged with a roller gear, the roller gear is engaged with a driven transverse tooth bar, an impact block is arranged on the driven transverse tooth bar, and the impact block moves following the driven transverse tooth bar and can