Device and method for spin forming mandrel of multi-functional complex vertical and horizontal internal rib cylindrical member

Abstract

The invention relates to a spinning forming core mold device and a method of multi-functional complex longitudinal and transverse inner rib cylindrical components. Each combined core mold comprises anactive core mold and a passive core mold; and the transverse core molds are circular rings with bosses on the inner sides. The combined core molds acts independently, so that the combined core moldscan be formed without rib barrel-shaped components; the combined core molds and the transverse core molds are matched, and cylindrical components with transverse inner ribs can be formed; the combinedcore molds and the longitudinal core molds are matched, and cylindrical components with longitudinal inner ribs can be formed; and the combined core mold and the transverse core mold, the longitudinal core molds and the longitudinal core molds are matched, and cylindrical components with complex longitudinal and horizontal inner ribs can be formed. According to the spinning forming core mold device, the forming of the ribbed components and non-ribbed components with different types is realized; the transverse core molds are adjusted., the thicknesses of the longitudinal core molds are equal to the thicknesses of the longitudinal core molds, and the forming of the cylindrical components with different ribs and high longitudinal and transverse inner ribs is realized; and the device can effectively solve the problems that the core molds of the cylindrical spinning forming components with the longitudinal and transverse ribs are difficult to machine and demold, and has the characteristicsof being easy to machine and assemble, convenient to detach, multifunctional and the like.

Description

technical field [0001] The invention belongs to the field of precise plastic forming with ribbed cylindrical members and non-ribbed cylindrical members, and relates to a multi-functional complex vertical and horizontal internal rib cylindrical member spinning forming mandrel device and method, especially for complex vertical and horizontal internal rib cylindrical members. The component spinning forming technology is specifically a multifunctional mandrel device capable of spinning and forming complex vertical and horizontal internal rib cylindrical components. Background technique [0002] With the rapid development of the field of aerospace weapons and equipment, there is an increasing demand for high-performance, lightweight thin-walled cylindrical components, especially the ultra-high load-bearing, ultra-high-precision and ultra-high reliability components widely used in space stations and hypervehicles. A cylindrical member with high and complex vertical and horizontal ...

AI Technical Summary

Problems solved by technology

Rib members formed by internal rotation have concave parts in the ribs on the outer surface, and the surface quality is difficult to guarantee; however, for thin-walled members with vertical and horizontal inner ribs, this method is difficult to form, and for thin-walled members For wall components, this method is also not applicable; Northwestern Polytechnical University discloses a spin forming mandrel with transverse internal ribs in the patent application with publication number CN101497099A

Compared with members with transverse inner ribs, since members with vertical and horizontal inner ribs have longitudinal ribs in addition to horizontal inner ribs, the demoulding must be along the axis direction of the longitudinal inner ribs, otherwise the longitudinal ribs will interfere with the longitudinal ribs during demoulding. The ribs are in contact with the rib grooves of the mandrel and cannot be demolded smoothly, so the demoulding method is different from the patent CN101497099A; in the utility model patent with the patent number 200822071595.5, a split mold for composite reinforced rib cylindrical parts is disclosed. However, the ribs of the components formed by this mold are too low, and for components with too high ribs, this kind of mold cannot be demoulded, and the mold assembly is complicated

Images