The seat ring processing equipment is a special lathe that uses a hydraulic motor to drive the center column to rotate, which drives the support arm and the tool post to rotate to complete the main movement and the circumferential feed movement of the turning. The tool holder mounted on the tool holder arm realizes the radial and axial feed cutting movement of the lathe. The structure and layout of the machine tool are shown in the figure below. It mainly includes components such as the base and the base support arm, the center column and the bearing seat, the tool holder arm, the tool holder, and the main drive hydraulic system. The main drive hydraulic system includes the main drive system and the oil supply system. The main drive system is driven by a hydraulic motor, and the oil supply system controls the main movement of the machine tool. Before installation and operation, the fuel tank must be filled with 2/3 level gauge hydraulic L-TSA46 hydraulic pressure. oil.