Turnover double-tool-bit mechanism for deburring upper surface and lower surface of steel billet

The utility model provides a mechanism for deburring the upper surface and the lower surface of a steel billet by overturning double tool bits, which comprises a left-side memorial archway frame, a right-side memorial archway frame and a memorial archway frame connecting beam arranged at the lower part between the two memorial archway frames, and is characterized in that the left-side memorial archway frame and the right-side memorial archway frame are of stepped notch structures; and an upper cutter beam assembly and a lower cutter beam assembly are arranged between the left side memorial archway frame and the right side memorial archway frame. The utility model has the advantages of simple structure, automatic resetting of the cutter bar, safety, practicability, strong burr cleaning power and light weight. In addition, due to the fact that the lower cutter beam assembly can rotate by 180 degrees through the hydraulic motor, the upper scraper and the lower scraper are adopted, the service life of the cutter