Spin forming mandrel with transversal inner rib component

Abstract

The invention relates to a spin forming core mould with a transverse inner rib member. The spin forming core mould comprises a top end (1), a clamping plate (2), a rib die (3) and a chuck (4); the longitudinal sections of the top end (1), the clamping plate (2) and the rib die (3) are taper; the annular clamping plate (2) is divided into one active clamping plate (5) and two passive clamping plates (6) in the longitudinal direction by adopting a longitudinal distinction mode, the shape of the active clamping plates is trapezoid; the champing plate of which the active clamping plates is cut is divided into two parts along a center line of the champing plate, namely the two symmetrical passive champing plates (6); the periphery of the lower surface of the champing plate (2) is provided with a chamfer angle based on the shape of the inner rib, and the length of the horizontal projection of the chamfer angle M is less than the maximum displacement L of the active champing plate (6) in the X direction; and the outside diameter difference between the top and the bottom of the champing plate is more than zero. The transverse and longitudinal combined distinction proposal adopted by the invention can effectively overcome the defect that the forming of a large scale thin wall complicated member with a transverse inner rib is more difficult than the demoulding, and satisfy the requirements of rapidly and efficiently forming of the type of the members; and the spin forming core mould has the characteristics of simple structure and convenient use.

Description

1. Technical field: [0001] The invention relates to the spinning forming technology of components with transverse inner ribs in the plastic forming industry, in particular to a core mold for spinning forming of components with transverse inner ribs. 2. Background technology: [0002] After decades of development, the spinning process is now playing an increasingly important role in the near-net shape of thin-walled, complex-shaped, and lightweight integral components. Large thin-walled complex components are a type of parts commonly used in aerospace and weapon industries, such as aero engine covers, integral rocket engine components, compressor cones, nose cones of artificial satellites and missiles, drug-type covers in the weapon industry, etc. . The development of high-tech industries such as aerospace requires that the strength and stiffness of these parts be improved without affecting the aerodynamic performance of these large thin-walled components so as to optimize t...

AI Technical Summary

Problems solved by technology

However, the spinning member with transverse internal ribs is difficult to demould due to the existence of internal ribs after forming, so the design and application of the core mold is a difficult problem

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