The invention discloses an
assembly line of a hydraulic oil cylinder, which is capable of realizing semi-automated production of the hydraulic oil cylinder in cleaning and assembling. The automated
assembly line is formed by eight main stations of a
cleaning station, a
piston rod material feeding
station, a cylinder tube material feeding
station, a guiding sleeve installing
station, a
piston installing station, a
piston fastening station, a cylinder tube final
assembly station, a guiding sleeve and clamping key fastening station and the like, wherein related stations are provided with a stop dog, a lifting mechanism and a pressing device in a matching way for catching, positioning and pressing a workpiece, a line body is formed by a section material roller double-layer line (a driving device is an
electric motor), and the line head and the line
tail are provided with elevators for ensuring the cycle use of a tool plate; the guiding sleeve installing station and the piston installing station are equipped with assistant mechanical arms in which are used for manually assisting the installing of a guiding sleeve and a piston, and a sealed installing platform is provided with a workpiece turnover mechanism which is used for overturning the guiding sleeve and the piston and assisting the installing of a sealing piece; a final assembly process of the cylinder tube final assembly station is completed by a horizontal type cylinder installing
machine. According to the automated
assembly line disclosed by the invention, the labor strength of a worker can be reduced, the production efficiency is increased, meanwhile, the damage to a seal ring in each key position during assembling is effectively avoided, and the finished product rate of the hydraulic oil cylinder is increased.