Workbench for detecting Rockwell hardness of bridge clamping piece

The utility model discloses a workbench for detecting the Rockwell hardness of a bridge clamping piece, and the workbench comprises a working surface which is provided with two vertical chutes on theupper surface; the positioning grooves are formed in the two sides of the two sliding grooves and are perpendicular to the sliding grooves; fixing blocks are arranged in the clamping grooves, the clamping piece fixing grooves and the clamping piece fixing grooves; the fillets are respectively positioned at four corners of the clamping piece fixing groove; the bearing mounting groove is formed in the lower surface of the clamping groove; the positioning bolts are arranged on the two sides of the clamping piece fixing groove respectively, and positioning pieces are fixed to the lower ends of thepositioning bolts; a fixed shaft is arranged on the upper surface of the supporting platform, and a rotating bearing sleeves the fixed shaft; the inner ring of the rotating bearing is fixedly connected with the fixed shaft, a