3D printing device for conformal antenna and circuit integrated manufacturing and method thereof

Abstract

The invention discloses a 3D printing device for conformal antenna and circuit integrated manufacturing and a method thereof. The 3D printing device is characterized in that electric field driving jetting 3D printing, fusion deposition molding and five-axis linkage 3D printing are adopted for combination so as to achieve integrated manufacturing of a conformal antenna and a circuit; a base body structure of the antenna is manufactured by adopting an FDM technology, and the circuit of the conformal antenna is manufactured by adopting an electric field driving jetting 3D printing technology; self-supporting printing of various complex antenna base body structures is realized by utilizing a FDM nozzle and printing platform five-degree-of-freedom motion, and high-precision conformal printing of an antenna conductive pattern on a complex curved surface is realized on the basis of a five-axis linkage platform and an electric field driving jetting 3D printing nozzle; the FDM nozzle is used for supplying a printing consumable by adopting a wire feeding mechanism, and then the needed supply of the printing consumable is realized; and synchronous sintering and curing of the printed circuit are realized by adopting an in-situ laser sintering technology; and a CCD camera is adopted to assist in positioning, and the circuit printing process is monitored in real time. The device and the method have various advantages and wide industrial application prospects.

Description

technical field [0001] The invention relates to a 3D printing device and method for integrated manufacturing of conformal antennas and circuits. Background technique [0002] As an emerging technology in wireless electronic communication equipment, conformal antenna is a new technology developed on the basis of traditional antennas, and it is a general term for such antennas with "conformal" characteristics. A conformal array antenna refers to an array antenna that is attached to the surface of a carrier and bonded to the carrier. It needs to conformally attach the array antenna to a surface with a fixed shape to form a non-planar conformal antenna array. Conformal antennas and conformal array antennas can be conformed on a special carrier, so that the conformal antenna and the carrier have an inseparable relationship, and this special carrier can be the wing of an aircraft, the warhead of a missile, a manned spacecraft A certain part of the shell and so on. As an importan...

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Problems solved by technology

Among them, the flexibility of printed electronic circuit technology is not high enough, and the accuracy of the manufactured circuit is also very limited. It is difficult to manufacture conformal antennas attached to complex curved surfaces. It is generally used for circuit printing with low precision requirements on simple structures; inkjet printing Jet printing technology has the disadvantages of low printing resolution, droplet size is limited by nozzle diameter, nozzles are easy to clog, and the types of printing materials used are very limited; the Aerosol Jet 5X equipment produced by Optomec in the United States combines traditional CNC machining method, the principle of which is to apply the five-axis machine tool and the aerosol jet printing process to the conformal jet printing process of the flexible curved surface patterned circuit, but the aerosol jet printing method has high equipment cost, complicated process, and low production efficiency, which cannot realize substrate and Integrated manufacturing of circuits; 3D direct writing technology combined with a six-degree-of-freedom manipulator has problems such as poor precision and the inability to realize integrated printing of substrates and conformal circuits. Metal structures with good conductivity and nanoscale resolution, but for conformal wiring, the coating of nanoparticles is more difficult, and the consumption of powder and solution is more. When combined with a six-degree-of-freedom manipulator for manufacturing conformal antennas, There are problems such as poor precision and the inability to realize the integrated printing of substrate and conformal circuit, and there is no actual production application at present; Huang Yongan proposed a method and equipment for conformal printing of complex curved surface circuits in (application number 201710915067.1), the principle of which is Using electrohydrodynamic jet printing, combined with a platform that allows the object to be printed to move in six degrees of freedom, to form a gradient potential difference on the ink, the electrode ring and the object to be printed, and to draw a curved surface circuit on the existing substrate, its disadvantages The disadvantage is that the conformal substrate cannot be directly manufactured, so the integrated manufacture of the conformal antenna cannot be realized

[0016] The existing manufacturing technology cannot realize the integrated manufacturing of the conformal antenna substrate and the circuit, and when manufacturing the circuit on the existing substrate, there are deficiencies such as low manufacturing accuracy, poor conformal ability, and limited types of manufacturing materials. Therefore, it is urgent to develop high-precision Conformal 3D printing technology to realize high-efficiency and low-cost large-scale manufacturing of conformal antennas and conformal array antennas

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