High-accuracy antenna reflecting surface panel and manufacturing method thereof

Abstract

The invention discloses a high-accuracy antenna reflecting surface panel and a manufacturing method thereof, which relate to antenna reflecting surface unit manufacturing technology in the fields of satellite communication, radio measurement and control, deep space exploration, large radio telescopes and the like. The method comprises the following steps of: forming a rib beam by using a correction grooved Z-shaped section; forming a skin by grooving an aluminum alloy plate; applying negative pressure through sealing and vacuum devices; attaching separation components such as the Z-shaped section rib beam, the skin and the like to a mold and bonding, curing and molding the separation components and the mold into a whole by using an adhesive; and releasing vacuum negative pressure to form an antenna reflecting surface unit having a high-accuracy rib grooved bonded structure. The method has the advantages of high accuracy, light weight, high rigidity, high intensity, simple processing technology, stable and reliable performance, low manufacturing cost, easy realization of production environment, mass production and the like and is particularly suitable for manufacturing large and medium high-accuracy antenna reflecting surfaces in high-frequency sections.

Description

technical field [0001] The invention relates to a high-precision antenna reflector panel and its manufacturing method in the fields of satellite communication, radio measurement and control, deep space exploration, large-scale radio telescopes, etc., and is especially suitable for high-precision antenna panels working in the Ka frequency band and above the Q frequency band. Mass production of reflective surfaces. Background technique [0002] With the rapid development of communication and measurement and control technology, the working frequency band is getting higher and higher. Not only is the demand for large and medium-sized antennas more and more extensive, but also higher requirements are put forward for the accuracy of the antenna reflection surface. The main reflective surface of large and medium-sized antennas is composed of dozens or even thousands of single reflective panels. The accuracy of a single antenna reflective panel is the basis for the accuracy of the a...

AI Technical Summary

Problems solved by technology

At present, the manufacturing methods of high-precision antenna reflector panels mainly include traditional machining manufacturing methods, traditional riveting and honeycomb sandwich structure high-precision panel manufacturing methods, and honeycomb sandwich structure high-precision panel manufacturing methods. These three manufacturing methods are in There are certain deficiencies in performance and operation:

[0006]2. Because the Z-shaped ribs of the traditional riveting process are obtained by the Z-shaped bar through the stretch-bending process, there is stress in the panel itself. There is also stress in the middle, which causes its own internal stress to be large, and there is a hidden danger of deformation

[0007]3. The traditional aircraft skin quenching and stretching process has great difficulty in the process of manufacturing a skin with a large area and a gentle curvature. After the skin is stretched There are shortcomings such as many bulges and poor molding conditions, requiring a lot of manual calibration, and it is difficult to achieve high-precision skinning

[0008]4. The process of this invention is poor in implementation, and it is difficult to extrude a large-area and high-thickness adhesive layer, and it is easy to wrap air bubbles, which has hidden dangers in adhesive quality and complicated processes. Long processing cycle, high cost, not suitable for mass production and other shortcomings

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