Device for cleaning workpiece through negative pressure ultrasound

The utility model discloses a device for cleaning a workpiece by using negative pressure ultrasound, which relates to the technical field of negative pressure ultrasound cleaning, and comprises a box body, a base is fixedly connected to one side of the bottom in the box body, a cleaning barrel is fixed on the base, a plurality of supporting components are arranged on the inner wall of the cleaning barrel, and a cover plate is rotatably hinged to the box body positioned right above the supporting components. A water inlet pipe is connected to the cover plate in a penetrating mode, a penetrating drainage pipe is arranged on the base, and one end of the drainage pipe is communicated into the cleaning barrel. Compared with the prior art, the workpiece cleaning device has the advantages that when a workpiece is placed in the cleaning barrel, the workpiece is supported in the cleaning barrel through the supporting assemblies in a multi-point contact mode, so that the workpiece cannot make contact with the inner wal