Aluminum alloy gravity casting mechanism and using method thereof

The invention relates to the technical field of aluminum alloy gravity casting, in particular to an aluminum alloy gravity casting mechanism and a using method thereof.The aluminum alloy gravity casting mechanism comprises a truss, a transverse rail, a lifting column, a hanging bracket and a casting assembly, the casting assembly is hoisted through the hanging bracket, gravity casting is conducted through the casting assembly, and after molten aluminum alloy in a casting ladle is cast, the casting assembly is separated from the truss. According to the aluminum alloy gravity casting mechanism, an original casting assembly is put down through the hanging bracket, the casting assembly prepared in advance and a casting ladle containing molten aluminum alloy liquid are directly clamped, the time for adding the molten aluminum alloy liquid is shortened, the production duration of aluminum alloy casting is shortened, and then the aluminum alloy gravity casting efficiency of the aluminum alloy gravity casting mechani