Follower cooling structure for bilateral mechanical arm

Abstract

The invention discloses a follower cooling structure for a bilateral mechanical arm. The follower cooling structure comprises a die frame connecting base, main connecting rods, follower cylinders anda nozzle module; the die frame connecting base is installed on the lower surface of an upper die frame; the lower surface of the die frame connecting base is provided with a plurality of connecting joints; each connecting joint is connected with one main connecting rod; the lower end of each main connecting rod is connected to the nozzle module; the upper end of each follower cylinder is fixed with the upper die frame, and the lower end of each follower cylinder is connected with the position, close to the lower end, of the corresponding main connecting rod; each follower cylinder stretches topull the corresponding main connecting rod to rotate around the corresponding connecting joint; and each main connecting rod drives the nozzle module to move. The follower cooling structure providedby the invention is applied between the upper die frame and a lower die frame of a hot forging die frame; and in the die closing and mold opening process, an angle of the follower cooling structure can be automatically adjusted, nozzles always spray cooling liquid towards a heat centralization region of the upper die frame, and the cooling effect is good.

Description

technical field [0001] The invention relates to a follow-up cooling structure of a bilateral mechanical arm and belongs to the technical field of hot forging machine cooling. Background technique [0002] The forging process carried out above the metal recrystallization temperature is called hot forging. Hot forging is also called hot die forging. During forging, the deformed metal flows violently, and the contact time between the forging and the die is longer. Therefore, mold materials are required to have high thermal stability, high temperature strength and hardness, impact toughness, thermal fatigue resistance and wear resistance, and are easy to process. [0003] 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 there wi...

AI Technical Summary

Problems solved by technology

The disadvantage of this lubrication method is that there will be a large amount of graphite vapor, which will cause environmental pollution in the workshop and is not worth promoting.

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. The residual water on the surface of the mold is heated and vaporized into water vapor for lubrication during rapid forming. In time, the mold and forgings will have a phenomenon of bonding and a surge in ejection force, which greatly reduces the life of the mold, and sometimes even causes the product to fail to form. Therefore, cooling devices for the lower mold and upper mold are required for timely cooling

The disadvantage of this cooling method is that it usually uses a hose to directly spray a large amount of cooling water. When the cooling water is used, the cooling hose is affected by the up and down movement of the mold frame, and the cooling is often delayed, which is time-consuming and laborious, and the effect is not good. , at the same time, most of the hoses need to extend into the forming area of ​​the mold base, resulting in the failure of full automation of the walking beam, and frequent alarms

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