Maintenance clamp for elastic coupling of diesel locomotive

The utility model discloses a maintenance fixture for an elastic coupling of an internal combustion locomotive, which relates to the technical field of elastic couplings and comprises a maintenance stand, a central column is arranged in the middle of the top of the maintenance stand, and a sliding groove is formed in the top of the maintenance stand and is positioned on the side surface of the central column. According to the clamping device, the servo motor is arranged, when the elastic coupling needs to be clamped, the top double-end lead screw and the bottom double-end lead screw can be driven to rotate through the gearbox by utilizing the power of the servo motor, so that the distance among the four clamping blocks is shortened, and manual clamping is not needed; when the elastic coupling is clamped, the elastic coupling can be prevented from being damaged by hard contact through contact between a clamping pad and the elastic coupling, a clamping column can retract into a clamping block, and when a clampi