Sand spraying auxiliary device for precision casting shell manufacturing

The utility model provides a sand spraying auxiliary device for precision casting shell making, which belongs to the technical field of precision casting shell making and comprises a base, a rotating base, a lifting sliding component, an overturning component, a clamping component and a first driver. Wherein the rotary base is arranged on the base. The lifting sliding assembly is used for driving the overturning assembly to lift and slide. The overturning assembly is used for driving the clamping assembly to rotate on the lifting sliding assembly in a pitching mode. The clamping assembly comprises a rotating mandrel, a placement seat, a pressing plate, a sliding shaft and an air cylinder. The placement seat is used for hanging a workpiece mandrel; the pressing plate is driven by the air cylinder and the sliding shaft to be close to the placement base, and the pressing plate and the placement base jointly clamp the workpiece mandrel in the axial direction. The first driver is used for driving the rotating mand