Method for repairing translation cylinder of hydraulic forging press

The invention relates to a method for repairing a translation cylinder of a hydraulic forging press, which comprises the following steps of: a, dividing the translation cylinder (1) into two segmented cylinder bodies (5), and processing a connecting shaft hole (7); b, spot welding a supporting ring (9) on the outer wall of the segmented cylinder body (5), and machining the outer circle of the supporting ring (9); c, the outer circle of the supporting ring (9) is clamped, and the inner wall of the water filling hole (2) is machined; d, a first process plate (11) and a second process plate (12) which are perpendicular are arranged on the end side wall of the segmented cylinder body (5) in a spot welding mode; e, aligning and adding a process plate I (11) and a process plate II (12); f, the segmented cylinder body (5) and the connecting shaft (10) are assembled, welded and fixed; and g, removing the process plate I (11) and the process plate II (12). According to the method, the whole ultra-long blind hole struc