Clamping device

A clamping device is used for clamping a product in the fluid type polishing process of the product through abrasive auxiliary materials and is characterized by comprising a polishing clamp, a sealing frame, a sealing upper clamping plate and a sealing lower clamping plate, the sealing upper clamping plate and the sealing lower clamping plate are parallel to each other, the sealing frame is located between the sealing upper clamping plate and the sealing lower clamping plate, and the polishing clamp is located between the sealing frame and the sealing upper clamping plate. The sealing frame is provided with a plurality of containing grooves, the polishing clamp comprises a plurality of upper cover plates and a polishing clamp body, the upper cover plates are matched with the polishing clamp body, the number of the upper cover plates is the same as that of the containing grooves of the sealing frame, the polishing clamp body is used for clamping the product, the upper cover plates cover the polishing clamp bod