Automatic crystal blank polishing and burnishing system and docking mechanism thereof

The invention discloses a docking mechanism, comprising a docking machine frame, wherein a docking position, a switching position, a powder soaking position and a transition position are arranged on the docking machine frame; the docking bracket is fixedly mounted in the docking position, a docking component is arranged on the docking bracket, and the docking component comprises an upper sliding fixture seat and a lower fixed fixture seat; a switching bracket is arranged in the switching position, the switching bracket is driven by a switching bracket driving device to rotate around a horizontal shaft, and an upper fixture fixing part and a lower fixture fixing part are arranged on the switching bracket; a powder soaking component is arranged in the powder soaking position; a first fixture placement rack is arranged in the transition position; and the docking mechanism also comprises a first front-and-back transfer mechanism and a second front-and-back transfer mechanism. The invention also discloses an automatic crystal blank polishing and burnishing system adopting the docking mechanism. According to the technical scheme, the docking precision and the bonding firmness of crystal blanks are guaranteed, the docking working position is reasonable in structure, and the docking efficiency and the processing efficiency of the whole automatic polishing and burnishing system are improved.