Screw rod roller bracket for machining marine cylinder sleeve and using method of screw rod roller bracket

The invention provides a screw rod roller bracket for machining a marine cylinder sleeve and a use method of the screw rod roller bracket, is suitable for the technical field of machining of the marine cylinder sleeve, and aims to provide the screw rod roller bracket for machining the marine cylinder sleeve and the use method of the screw rod roller bracket for machining the marine cylinder sleeve according to the scheme that the screw rod roller bracket comprises a rack, a first two-way screw rod, a roller seat, an end cover, a strip-shaped groove and a connecting hole; a first bidirectional screw rod is rotatably mounted on the inner wall of the rectangular groove of the rack, roller seats are symmetrically mounted in the rectangular groove of the rack in a sliding manner, the threaded surface of the first bidirectional screw rod is in meshed connection with the inner walls of circular grooves of the roller seats, and different types of cylinder sleeves can be conveniently fixed by mounting the rack, the fi