Bimetal composite valve tappet closing-in device

The utility model discloses a bimetal composite valve tappet closing-in device. The bimetal composite valve tappet closing-in device comprises a mounting rod, a base and a locating spring. The mounting rod and the base are cylindrical. The mounting rod is fixed to the middle position of the base. The bottom of the base is provided with a circular-truncated-cone-shaped groove. A spring mounting hole is formed in the bottom of the base and located at the middle position of the groove. The locating spring is fixed into the spring mounting hole. The locating spring is a compression spring. The mounting rod and the base are both made of 40CR or GCR15 and are integrally formed. The bimetal composite valve tappet closing-in device is simple and reasonable in structure; an operator just needs to place a tappet body carrying brazing alloy and an alloy sheet into the groove, make the locating spring tightly press the razing alloy and the alloy sheet and conduct closing-in and pressing at the groove, operation is convenient, and closing-in is rapid; the bimetal composite valve tappet closing-in device has the advantages of being low in cost and labor intensity and high in efficiency, the reworking rate and the scrape rate are greatly lowered, and the product quality is effectively guaranteed.