Steel structure positioning clamp

The utility model belongs to the technical field of steel structure machining, and particularly relates to a steel structure positioning clamp which comprises a bottom plate, a fixing block is installed at the upper end of the bottom plate, a sliding seat is arranged on the fixing block in a sliding mode, a drilling device is arranged on the sliding seat, an adjusting assembly is arranged on the bottom plate, and a positioning assembly is arranged on the bottom plate. Two adjusting holes are formed in one end of the bottom plate, the positioning assembly comprises a micro motor installed on the bottom plate, a driving bevel gear is installed at the output end of the micro motor, and adjusting blocks are arranged in the two adjusting holes in a sliding mode. Through the arrangement of the positioning assembly, a steel structure can be positioned, the drilling accuracy is guaranteed, the convenience is improved, the steel structure drilling device is suitable for positioning steel structures of different sizes,