Downward moving type multi-spindle drilling machine with protection function

The utility model relates to the technical field of multi-spindle drilling machines, and discloses a downward moving type multi-spindle drilling machine with a protection function, which comprises a working box, two groups of first connecting blocks are symmetrically and fixedly arranged in the working box, and the first connecting blocks are rectangular plates; a rectangular groove is formed in the upper end of the first connecting block, a clamping block is movably mounted in the groove, a cylindrical mounting block is fixedly mounted at the upper end of the clamping block, a clamping hole is formed in the upper end of the mounting block, and a mounting cavity is formed in the position, corresponding to the wall face of the mounting block, of the bottom end of the clamping hole; guide holes are formed in the side surfaces of the clamping holes corresponding to the wall surfaces of the mounting blocks. According to the punching device, a workpiece needing to be punched is placed in the mounting block, when t