Large-sized edge milling machine device for ships

The invention discloses a large-sized edge milling machine device for ships, comprising a milling mechanism, a sheet material feeding mechanism, a clamping mechanism and a cuttings cleaning mechanism, wherein a steel plate is clamped by the clamping mechanism; the sheet material feeding mechanism is used for moving the steel plate to a suitable position; the milling mechanism is used for machining the steel plate; and cuttings are moved into a collector through the cuttings cleaning mechanism. According to the large-sized edge milling machine device for ships, a supporting rail is formed by assembling and welding single bodies, so that the length of the supporting rail and the length of a lathe body can be adjusted and steel plates with different lengths can be machined; a milling cutter disc can be replaced so as to machine different types of grooves and be convenient for welding; the milling cutter disc is provided with a hoisting system to adjust the height of the milling cutter disc so that the milling of the steel plates with the different lengths can be realized and the milling of upper and lower edges of the steel plates can be finished; and the cuttings cleaning mechanism is located below the ground surface so that the cuttings are prevented from being sputtered and the working environment can also be improved.