Composite material cap-type stringer forming device

A technology of composite materials and molding devices, applied in the field of hot molding, can solve the problems of material waste, high pressure, deformation, etc., and achieve the effects of improving quality, preventing overlapping of folds, and improving consistency and stability

Active Publication Date: 2019-12-13
常州新创航空科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when the upper mold is pressed down until the distance between the upper and lower molds is close to the thickness of the prepreg, it is difficult for the prepreg to slide between the upper and lower molds. The pressure on the prepreg is also

Method used

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  • Composite material cap-type stringer forming device
  • Composite material cap-type stringer forming device
  • Composite material cap-type stringer forming device

Examples

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Example Embodiment

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "rear", "inner" and "outer" indicate the orientation or position The relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to the present invention. Limitation of the scope of protection.

[0032] Such as figu...

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PUM

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Abstract

The invention relates to the technical field of hot die pressing forming, in particular to a composite material cap-type stringer forming device. The composite material cap-type stringer forming device comprises a lower die and an upper die, wherein the upper die comprises a cap top upper die and a side upper die, and the side upper die is connected with the cap top upper die through a second linear driving part; a limiting equal-height column is fixed on the lower surface of the side upper die; a guide hole corresponding to the limiting equal-height column is formed in the lower die; a sliding cavity communicates with the lower portion of the guide hole; a heightening plate is arranged in the sliding cavity; the heightening plate is connected with a transverse driving piece fixed on a lower base frame; and the transverse driving piece drives the heightening plate to move in the sliding cavity. According to the composite material cap-type stringer forming device, the limiting equal-height column and the heightening plate are arranged on the side upper die, so that the distance between the upper die and the lower die when the upper die is pressed down is changed, prepregs on two sides of a cap top are uniformly and smoothly shrunk towards the middle under the action of friction force between the upper die and the lower die when the cap top is pressed down, and the consistency and stability of product molding are improved.

Description

technical field [0001] The invention relates to the technical field of thermal molding and compression molding, in particular to a composite material hat-shaped stringer forming device. Background technique [0002] Hat stringers are used on commercial and military aircraft to secure metal fuselage components and metal wing skins. Advanced resin-based composite materials have the characteristics of light weight, high strength, high modulus, fatigue resistance, corrosion resistance, designability, and good manufacturability. They are ideal aeronautical structural materials. At present, composite materials have become the main body of the new generation of aircraft airframes. Structural materials. For the processing of hat-shaped stringers, hot molding preforming technology is often used. Hot molding preforming is a method in which a certain amount of prepreg is added to the metal mold, and it is heated and pressurized to cure and shape. [0003] In the prior art, during the...

Claims

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Application Information

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IPC IPC(8): B29C70/46B29C33/30
CPCB29C33/308B29C70/46
Inventor 张俭谈源唐海波谢刚陈云
Owner 常州新创航空科技有限公司
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