The invention discloses a workpiece surface spraying device. The workpiece surface spraying device comprises a worktable, racks, a driving motor, a rotating seat, a supporting seat, a
hydraulic cylinder, storage cylinders, lifting frames, a cross beam, a sliding rail, high-pressure spray heads, liquid transferring pipes, a groove, a sliding groove, lifting bases,
brush heads, mounting frames, workpieces, a fixing frame, mounting frame bayonets, a fixing frame bayonet, mounting frame pressure heads, a fixing frame pressure head, a hydraulic rod, a movable connector, positioning holes, clampingrings and limiting pins. The workpiece surface spraying device is compact in structure, convenient to use and capable of conducting surface spraying operation on the multiple sleeve workpieces simultaneously, and the service life of the workpieces is prolonged; meanwhile, the surfaces of the workpieces can be subjected to
impurity removing before being sprayed, so that the situation that the operation effect is affected by excessive impurities and dust is avoided, using is convenient, and the various using requirements in the spraying process of the workpieces are met; and the workpiece surface spraying device is used flexibly overall, uniform spraying is achieved, the working efficiency is high, high practicability is achieved, the operation effect is guaranteed, and using of manpower iseffectively reduced.