Magnesium alloy casting rod upsetting deformation blank making device

Abstract

The invention discloses a magnesium alloy casting rod upsetting deformation blank making device which comprises a casting and further comprises an upper female die, a middle female die and a lower female die, the middle female die is composed of two first half cylinders with the same diameter, and the upper female die, the middle female die and the lower female die are connected together through an integrated connecting column. The two first half cylinders can rotate in the circumferential direction around the integrated connecting column, and inner female die mechanisms are arranged in the upper female die, the middle female die and the lower female die correspondingly. According to the casting replacement device, the sliding base and the replacement base are arranged in the second sliding frame, the first containing groove and the second containing groove which are symmetrical are formed in the sliding base and the replacement base, and after a casting is heated, the sliding base only needs to be moved to one side of the replacement base; the sleeve and the casting can be moved from the first placing groove to the second placing groove, the whole process can be completed remotely, the process is simple, and the safety of workers can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of metal extrusion molding. Specifically, it is a billet making device for upsetting and deforming magnesium alloy cast rods. Background technique [0002] Upsetting is a forging process that reduces the height of the billet and increases the cross section. If the partial section of the billet is increased, it is called local upsetting. The function of upsetting includes obtaining a larger cross section and a higher height from a billet with a smaller cross section Smaller forgings; increase blank cross-section and flat end face before punching; increase forging ratio in the next step of drawing; improve transverse mechanical properties of forgings and reduce anisotropy; repeated upsetting and drawing to break alloy tools Carbide in steel, so that it is evenly distributed. [0003] In the prior art, the height-to-diameter ratio of castings using upsetting deformation is mostly limited within 2.5. When the ...

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Problems solved by technology

[0003] In the prior art, the height-to-diameter ratio of castings using upsetting deformation is mostly limited within 2.5. When the height-to-diameter ratio is greater than 3, the cylindrical billet will be unstable, resulting in "double drums" and folding defects, making the subsequent The deformation cannot be carried out. The existing upsetting methods are mostly upsetting from one end of the casting, and the efficiency is slow. With the continuous loss of heat in the casting and the mold, the difficulty of upsetting will gradually increase; and when casting Before upsetting deformation, the casting and the mold used are usually heated to facilitate better deformation of the casting. After heating, the worker puts the casting into the mold for upsetting, but after the casting and mold are heated due to The surface temperature is very high, and the molds and castings are heavy, it is very inconvenient for workers to operate them, and there are also great potential safety hazards

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