Drilling machine for steel plate machining

The utility model discloses a drilling machine for processing a steel plate, which relates to a drilling machine, aims to solve the problem that a larger and heavier steel plate is inconvenient to punch, and adopts the technical scheme that the drilling machine comprises a bedplate, a containing cavity is formed in the top surface of the bedplate, a lifting platform is connected in the containing cavity in a sliding manner, a plurality of bull eye wheels are mounted on the lifting platform, a sliding cavity is formed in the bedplate, and the bull eye wheels are mounted on the sliding cavity. A top block is slidably connected into the sliding cavity, an eccentric block abutting against the top block is rotatably connected into the sliding cavity, and a driving assembly used for rotating the eccentric block is arranged on the platen. The eccentric block extrudes the ejecting block, the ejecting block ejects the lifting table, the lifting table drives the multiple bull eye wheels to ascend, the steel plate and t