Elastic pin knocking-in tool

The utility model discloses an elastic pin knock-in tool which comprises a base, a mounting plate installed on the upper surface of the right end of the base, an open hole formed in the middle of the mounting plate, through holes formed in the upper end and the lower end of the open hole, and two first air cylinders installed on the surface of the right side of the mounting plate and located on the upper side and the lower side of the open hole. The output ends of the two first air cylinders are connected with one ends of push rods, the push rods penetrate through the through holes, the other ends of the push rods are connected with a fixing plate, an assembly workpiece is arranged between the fixing plate and the left side surface of the mounting plate, and an elastic pin is knocked into the middle of the assembly workpiece. By arranging a second air cylinder, a mounting push rod and a knock-in hammer, the elastic pin can be conveniently knocked into an assembly workpiece, the labor cost is reduced, meanwhil