Automatic opening/closing mechanism of centrifugal finished sealing cylinder cover

The invention discloses an automatic opening/closing mechanism of a centrifugal finished sealing cylinder cover. A clamping jaw is connected with a driving mechanism through a connecting rod mechanism; the driving mechanism comprises a cam rotating body, a movable column, a rotary fluted disc, a guide column, a fixed seat, a disc spring and a downlock fluted disc; teeth are arranged on the lower end surface of the rotary fluted disc; teeth are arranged on the upper end surface of the movable column; teeth are arranged on the lower end surface of the cam rotating body; teeth are arranged on theupper end surface of the downlock fluted disc; the upper end of the guide column is fixed in a central hole of the rotary fluted disc; the lower end of the guide column is movably inserted in a central hole of the movable column; the movable column is installed in a central hole of the cam rotating body through a flat key; the cam rotating body is rotationally fixed in a central hole of the fixedseat; the fixed seat is f