A quick-change valve hot forging die and its installation method and disassembly method

Abstract

The invention relates to a quick-change type valve hot forging die. The quick-change type valve hot forging die comprises a quick-change forging die body, a U-shaped gasket, a die holder and screws. The U-shaped gasket is fixed to the die holder through the screws. The quick-change forging die body is clamped on the die holder through the U-shaped gasket. The side wall of the quick-change forging die body is composed of an upper convex structure, a middle concave structure and a lower convex structure. The upper surface of the middle concave structure is the lower surface of the upper convex structure. The lower surface of the middle concave structure is the upper surface of the lower convex structure. During die installation, the U-shaped gasket is fixed to the die holder through screwed screws, and the U-shaped gasket ejects the upper surface of the lower convex structure. During die detachment, the unscrewed screws eject the lower surface of the upper convex structure. The invention further relates to an installation method of the quick-change type valve hot forging die, and a detachment method of the quick-change type valve hot forging die. By means of the quick-change type valve hot forging die, the installation method and the detachment method, the operation time is greatly saved, materials are effectively saved, and operation is easy and convenient. The invention belongs to the technical field of hot forging dies.

Description

technical field [0001] The invention relates to a hot forging die, in particular to a quick-change air valve hot forging die suitable for valves and its installation and disassembly methods. Background technique [0002] The valve blank is formed by forging, and the valve forging die is basically manufactured as a whole, and the whole is installed on the forging machine. The forging temperature of the valve is high, generally above 900°C. The forging die has a short service life due to thermal fatigue. Usually, about 1,500 valves need to be replaced. In the prior art, it takes 2-3 hours to replace a pair of forging dies, which takes a long time and needs to be replaced as a whole, which wastes materials. Contents of the invention [0003] Aiming at the technical problems existing in the prior art, the object of the present invention is to provide a split-type quick-change air valve hot forging die and its installation method and disassembly method without integral replace...

AI Technical Summary

Problems solved by technology

The valve forging temperature is high, generally above 900°C, and the forging die has a short service life due to thermal fatigue. Usually, about 1,500 valves need to be replaced forging dies.

In the prior art, it takes 2-3 hours to replace a pair of forging dies, which takes a long time and needs to be replaced as a whole, which wastes materials

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