Aluminum alloy sheet surface treatment device and using method thereof

The invention relates to the technical field of aluminum alloy sheet machining, in particular to an aluminum alloy sheet surface treatment device and a using method thereof.The aluminum alloy sheet surface treatment device comprises a bottom plate and a side plate, the bottom plate is installed on the bottom end face of the side plate, a fixing frame is fixed to the front side of the side plate, a rubber ring is installed on the inner side of the fixing frame, and an aluminum alloy sheet is installed on the inner side of the rubber ring; a suction cup structure used for fixing the aluminum alloy sheet is installed at the bottom end of the aluminum alloy sheet, a cross arm rod used for controlling the aluminum alloy sheet is installed on the other side of the suction cup structure, and a rotating shaft used for controlling the cross arm rod to rotate is installed at the other end of the cross arm rod. An operation platform is arranged on the upper side of the aluminum alloy thin plate, and a cleaning brush use