C-shaped closed angle beam forming tool and demolding method

Abstract

The invention discloses a C-shaped closed angle beam forming tool and a demolding method, and belongs to the technical field of aeronautical material forming. The specific scheme is as follows: the C-shaped closed angle beam forming tool comprises a frame and a mold assembly, the mold assembly comprises a first plate, a second plate, a third plate, a sub-block and an insert, the first plate, the second plate and the third plate are sequentially connected to form a C-shaped structure, the free end of the first plate and the free end of the third plate incline inwards and are fixed to the frame, the sub-block is arranged on one side of the third plate, the upper surface of the sub-block is flush with the second plate, the lower end of the side wall, away from the third plate, of the sub-block inclines inwards, and the insert is arranged below the sub-block. A demolding tool is simple in structure and convenient to use, and the time cost of manual operation is saved; compared with an original demolding mode, a special demolding device is omitted, meanwhile, the mold manufacturing difficulty is greatly reduced, and the cost is greatly reduced; and the problem that a C-shaped closed angle beam composite material part is not easy to demould is solved, and the part cannot be damaged.

Description

technical field [0001] The invention belongs to the technical field of aviation material forming, and in particular relates to a C-shaped closed-angle beam forming tool and a demoulding method. Background technique [0002] As aircraft structural parts are developing toward integration, large-scale, and complex theoretical shapes, almost all double-sided parts have at least one closed angle, and many parts have excessive local closed angles. Most of the aircraft mechanism components use Composite materials, the superior properties of composite materials make them more and more widely used in the aviation field. More and more large-size, super-large and high-precision composite parts of C-beam composite parts are selected to be solidified. The beam depends on the aircraft section, so most parts may also have closed angles, often such closed angles (the closed angle of the beam means that the angle between the web and the edge of the inner surface of the part is less than 90°)...

AI Technical Summary

Problems solved by technology

[0003] Commonly used demoulding methods have their own characteristics, functions and use environments, but there are also great shortcomings. The usual lifting method of demoulding is very simple and convenient, but it is particularly easy to damage the surface of composite parts; using the method of setting lifting points method, during the lifting process, composite parts may be bent or even damaged due to uneven force and improper operation

According to different tooling, special demoulding devices can be designed. The manufacturing and use costs of special demoulding devices are relatively high, and the versatility is poor

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