Wood board defect visual detection device

The invention provides a wood board defect visual detection device, which comprises a feeding truss manipulator for obtaining wood boards one by one from a to-be-detected board stack in the vertical direction, lifting the wood boards to the transportation height in the vertical direction, transporting the wood boards to the transverse position of a feeding position along the transverse direction,and then lowering the wood boards to the feeding position; a visual shooting detection mechanism, used for obtaining the wood board from the feeding position, clamping the wood board, transporting thewood board to the shooting position and transporting the wood board to the discharging position after shooting is completed; a discharging truss manipulator, used for obtaining the wood boards from the discharging position, lifting the wood boards to the conveying height in the vertical direction, conveying the wood boards to the transverse position of the detected board stack in the transverse direction, and discharging