Sheet steel coupling assembling device

The invention provides a steel disc coupler assembling device which comprises a base with a plurality of wheels installed at the bottom, a handle is arranged on one side of the base, four first hydraulic cylinders are installed on the base in a square shape, a workbench is fixed to the output ends of the first hydraulic cylinders, and two cambered plates are symmetrically arranged on the workbench. The two first sliding grooves are located below the two push plates correspondingly, the bottoms of the push plates are slidably connected with the first sliding grooves, driving lead screws are movably arranged in the two first sliding grooves through bearings, the driving lead screws penetrate through the bottoms of the push plates, and the driving lead screws are in threaded connection with the bottoms of the push plates. The problems that when the coupler is assembled, the assembly difficulty is large, the coupler installation process is limited by field conditions, the heated coupler needs to be manually carri