Press fitting device for plunger spring of fuel injection pump

The utility model provides a fuel injection pump plunger spring press-fitting device which can be used for assembling fuel injection pump springs of different models, and is safe, reliable and high in universality. The utility model provides an oil injection pump plunger spring press-fitting device which comprises a bottom plate assembly, an oil injection pump assembly and a spring pressing assembly. The supporting assembly is fixedly assembled on the bottom plate assembly; one end of the press-fitting assembly is rotationally assembled to the end, away from the bottom plate assembly, of the supporting assembly, and the press-fitting assembly is arranged above the fuel injection pump; the anti-rebound assembly is assembled on the bottom plate assembly and used for locking the other end of the press-fitting assembly; and the two sets of anti-falling assemblies are symmetrically arranged, arranged on the two sides of the insertion hole and assembled on the bottom plate assembly, and the two sets of anti-falling