Hole inspection device for drilled circuit board

The utility model relates to the field of circuit board processing, in particular to a hole inspection device used after a circuit board is drilled, which comprises a working platform, two positioningsupports are arranged on the working platform along the length direction, the distance between the two positioning supports is matched with the width of the circuit board, and a row of a plurality ofroll shafts are arranged between the two positioning supports. A driving motor is installed on the working platform and connected with one of the roll shafts, a high-definition camera is installed above the two positioning supports and used for shooting a circuit board below the high-definition camera, an upper computer is further installed on the working platform, and a drilled standard circuitboard photo is stored in the upper computer. The high-definition camera is electrically connected with the upper computer to transmit the shot photo to the upper computer to be compared with the photoof the standard circuit boa