Hot forging die upper die with internal cooling function and cooling method thereof

Abstract

The invention discloses a hot forging die upper die with an internal cooling function and a cooling method thereof. The hot forging die upper die comprises a die frame system, a material beating mechanism is vertically arranged in the die frame system, a punch assembly is arranged at the lower end of the material beating mechanism, the material beating mechanism is arranged in the die frame systemthrough a supporting cushion block system, the material beating mechanism drives the punch assembly to move vertically in the die frame system synchronously, after the material beating mechanism descends, a hot forging piece on a punch hot forging lower die frame, an upper die inner cooling system is arranged in the supporting cushion block system, and the upper die inner cooling system and the punch assembly are synchronously lifted. When the method is in the die closing state of the hot forging die, the upper die inner cooling system does not work, the upper die moves upwards, the upper dieinner cooling system works, and a flowing cooling water environment, a cooling punch assembly, the supporting cushion block system and the material beating mechanism are formed around the punch assembly.

Description

technical field [0001] The invention relates to an upper mold of a hot forging die with an internal cooling function and a cooling method thereof, belonging to the technical field of hot forging cooling. Background technique [0002] In traditional hot forging, the mold needs to be heated to about 200°C, and the mold is lubricated by spraying graphite suspension on the surface of the mold. After evaporation, the residual graphite acts as a lubricating medium at high temperature. The disadvantage of this lubrication method is that a large amount of graphite vapor will be generated, which will cause environmental pollution in the workshop. In the hot forging form with a large amount of water, the mold does not need to be heated, but it needs to be cooled in time to keep the mold at room temperature during the production process, and the residual water on the surface of the mold during rapid forming is instantly vaporized into water vapor for lubrication. In time, the die and ...

AI Technical Summary

Problems solved by technology

The disadvantage of this lubrication method is that a large amount of graphite vapor will be generated, which will cause environmental pollution in the workshop

In the hot forging form with a large amount of water, the mold does not need to be heated, but it needs to be cooled in time to keep the mold at room temperature during the production process, and the residual water on the surface of the mold during rapid forming is instantly vaporized into water vapor for lubrication. In time, the die and forging will have a phenomenon of bonding and a sharp increase in ejection force, which greatly reduces the life of the die, and sometimes even causes the product to fail to form. Therefore, it is necessary to cool in the lower die and upper die in time.

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