Extrusion moulding mold for branch type light alloy component with big middle and small ends

Abstract

The invention discloses an extrusion moulding mold for branch type light alloy component with the big middle and small ends. The mold comprises an upper mold assembly, a lower mold assembly, an ejector device, a material crushing device and a valving type internal-external support component, wherein the upper mold assembly is arranged above the lower mold assembly, the valving type internal-external support component is arranged between the upper mold assembly and the lower mold assembly, the ejector device is arranged below the lower mold assembly and is in clearance fit connection with the lower mold assembly, the top end of the ejector device is in contact fit connection with the valving type internal-external support component, and the material crushing device is fixedly arranged abovethe lower mold assembly and is arranged outside the upper mold assembly and the valving type internal-external support component. The invention adopts a hot-extrusion shrink-opening method to realizeprecise plastic moulding of the complicated branch type light alloy components with the big middles and small ends, so that problems in a conventional production method can effectively be overcome, the formability of light alloys is improved, the comprehensive mechanical properties of the formed component is improved, the material utilization rate is greatly increased, the energy is saved and theconsumption is reduced.

Description

technical field [0001] The invention relates to the technical field of plastic processing and forming of metal materials, in particular to an extrusion forming die of a "big belly and small mouth" type branch light alloy component. Background technique [0002] With the rapid development of my country's aerospace technology, high-tech weaponry and marine development, complex branch components (twig components refer to parts that protrude in the direction of material radius) are more and more widely used in various fields. ; Such as missile and satellite wing cabin sections with ribs or bosses, deep-water equipment shells (deep-sea exploration or operating cabins greater than 1,000 meters, deep-sea torpedo shells), missile fins for weaponry, artillery brackets, Forgings with complex shapes, such as armored vehicle bodies, etc., with holes and flanges in multiple directions. Among the branch components, there are many "big belly and small mouth" parts (that is, the diameter of ...

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Problems solved by technology

[0003] The object of the present invention is to aim at the defects and deficiencies of the prior art, to provide an extrusion molding die for branch-like light alloy components with a "big belly and small mouth", and to realize the "big belly and small mouth" complex The precision plastic forming of branch components can effectively overcome the problems caused by the existing traditional processing and manufacturing methods, improve the formability of light alloys, improve the comprehensive mechanical properties of formed components, greatly improve the utilization rate of materials, save energy and reduce consumption

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