a forging die

Abstract

The invention relates to a forging die, which comprises an upper die base, a guide sleeve is arranged on the bottom surface of the upper die base, a guide post is installed inside the guide sleeve, the guide post is fixed on the lower die base, and a through hole is arranged in the center of the lower die base. The inner activity penetrates the ejector rod, and also includes a fixed plate, an upper combined mold, a lower combined mold and an ejector device. The upper mold core is a combination composed of an upper plate body and a round rod. The combination is arranged in the second upper groove of the upper inner mold. There is a frustum-shaped hole on the bottom surface of the upper plate body. The lower end protrudes from the first through hole and is placed in the frustum-shaped hole. The lower combined mold includes the lower outer mold, the lower inner mold and the lower mold core. The forging dies in the prior art tend to cause excessive dimensional deviation of the forging, plastic deformation of the mold cavity, cracking at sudden changes in the inner wall of the mold cavity, and deformation of the forging during unloading.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to a forging die. Background technique [0002] The forging die is a die used in the forging process. The raw material is plastically deformed in the forging die under the action of external force, so as to obtain parts of the required shape and size. [0003] The utility model patent of authorized notification number CN207508191U discloses a closed forging die. Its main technical scheme is: the upper die is connected with the upper punch, the upper punch is connected with the lower punch, and both the upper punch and the lower punch are pressed into the In the cavity of the lower die, the gap between the upper punch and the cavity is small, and the upper punch is just pressed into the cavity. The advantage is that the forging will not form flash; but when the cavity of the forging die is in a closed state, the die The volume of the cavity is fixed, and the volume of the blank is b...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that the forging die in the prior art tends to cause excessive dimensional deviation of the forging, the die cavity is prone to plastic deformation, the abrupt position of the inner wall of the die cavity is prone to cracking, and the forging is prone to deformation during unloading, the present invention provides a forging die , the precision of the forging is high, the cavity is not easy to produce plastic deformation and cracking, and the forging is not easy to deform when unloading

Images