Steel machining punching device

The utility model discloses a steel processing punching device, which relates to the field of steel processing, and comprises a plate surface, the lower end of the plate surface is fixedly connected with supporting legs, the upper end of the plate surface is fixedly connected with a bracket, the front surface of the bracket is provided with a second sliding hole, and the inside of the second sliding hole is slidably connected with a second sliding block; a front-back translation assembly is fixedly connected into the second sliding hole, a hydraulic cylinder is fixedly connected to the lower end of the second sliding block, a drilling mechanism is fixedly connected to the lower end of the hydraulic cylinder, a sliding groove is formed in the upper end of the plate face, and a left-right translation assembly is fixedly connected into the sliding groove. And the upper end of the left-right translation assembly is fixedly connected with a fixed plate. By the adoption of the structure, when the front-back transla