A stamping and adhesive compound molding method for a small antenna reflector
A technology of adhesive compounding and molding methods, which is applied to antennas, electrical components, etc., can solve problems such as the inapplicability of high-precision antenna reflective surfaces, the heavy weight of stamped reflective surfaces, and the short service life of panels, so as to achieve weight reduction and production costs. The effect of low cost and low mold cost
Active Publication Date: 2016-05-04
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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[0003] The Chinese patent number is 201210228699.8, and the patent titled "A High-Precision Antenna Reflecting Surface Forming Process" discloses a stamping and forming reflective surface manufacturing process. The process forms the inner layer and the outer layer of the reflective surface through one stamping; The inner layer of the reflective surface is placed on the overmolding mold, and the adhesive is coated on the inner layer of the reflective surface; the outer layer of the reflective surface is placed on the inner layer of the reflective surface coated with the adhesive; Keep the pressure for a period of time until the adhesive is cured to complete the pressing of the high-precision antenna reflective surface, but similar to this stamped reflective surface is heavy, the processing technology is complicated, and the service life of the panel is short
However, this method is only suitable for forming the reflective surface of super-large-aperture antennas, that is, it has a good application effect when the curvature of the panel unit area is small, but it is not suitable for high-precision antenna reflective surfaces with large curvature or irregular surfaces. Be applicable
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[0027] Combine below Figure 1 to Figure 6 Further explain the present invention
[0028] Step 1: Design and manufacture stamping dies according to the curved surface and structural characteristics of the reflective surface, such as figure 1 As shown, the main body of the mold includes the lower sleeve 1, the core mold 2, the blank holder 3, and the upper sleeve 4, all of which are made of steel castings and processed after annealing; the core mold 2 is designed as a common core mold for stamping and gluing, The mandrel 2 adopts a fully enclosed structure for the purpose of vacuum negative pressure adsorption, with vacuum adsorption holes of Φ2 evenly distributed on the curved surface, and vacuum conduit ports and vacuum gauge ports are arranged around it.
[0029] Step 2: Stamp the plate of the reflective surface panel 5 on the stamping die to obtain the antenna reflective surface panel; use a 300-ton double-acting hydraulic press and load it into the stamping die; the refle...
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The invention discloses a stamping-gluing composite forming method for a small antenna reflecting surface in the field of radar antenna manufacturing engineering. According to the stamping-gluing composite forming method, the antenna reflecting surface is formed through a stamping process, the periphery of a panel is grooved for releasing the interior pressure of the panel, the panel is placed on a die and completely bonded with the curved surface of the die by virtue of the negative pressure adsorption of a vacuum device, and an antenna back rib frame is glued and cured finally to form the high-accuracy antenna reflecting surface. The stamping-gluing composite forming method disclosed by the invention has the advantages of being high in accuracy, simple in machining process, low in manufacturing cost, capable of being produced in batches, and the like, as well as is especially suitable for batch manufacturing for small high-accuracy antenna reflecting surfaces.
Description
technical field [0001] The invention relates to a method for manufacturing a small antenna reflective surface in the field of radar antenna manufacturing engineering, in particular to a stamping and adhesive composite molding method for the small antenna reflective surface. Background technique [0002] The reflective surface of the stamped antenna is formed by stamping a metal sheet through a hydraulic press, which is low in cost and can be mass-produced. Related products have been widely used in the field of radio and television. The reflective surface of the adhesive antenna is made of aluminum alloy sheet and then glued with the aluminum profile after shaping to form a reflective unit. The precision of the reflective surface of the adhesive antenna is much higher than that of the stamped antenna. The related products of the reflective surface of the adhesive antenna have been It is used in the fields of satellite communication, measurement and control, and deep space exp...
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IPC IPC(8): H01Q15/16
Inventor 王庆东王海东刘利文
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP