Processing mold and processing method of curved surface of honeycomb panel of dual-band antenna

Abstract

A dual-band antenna honeycomb panel curved surface processing mold and processing method. The processing mold includes a mold body, the overall structure of the mold body is a circular plate, the upper end surface of the circular plate is provided with a parabolic forming end, and the surface structure of the parabolic forming end matches the curved surface of the dual-band antenna honeycomb panel. The processing method is: the honeycomb panel is tightly fitted to the parabolic forming end of the mold, and the upper end surface of the honeycomb panel is milled and processed using a flat milling cutter. After demoulding, the honeycomb panel as a whole returns to a flat plate structure, and the milled portion of the honeycomb panel constitutes a concave curved surface, that is, the required dual-band antenna honeycomb panel curved surface is obtained. The present invention has the advantages of simple mold structure and convenient and fast processing, and reduces costs by more than 90% compared with the traditional five-axis machining center processing method.

Description

Technical Field

[0001] The invention relates to a mould and a processing method thereof, in particular to a processing mould and a processing method for processing a curved surface of a honeycomb plate of a dual-band antenna. Technical Background

[0002] The curved surface of the honeycomb panel of the dual-band antenna is formed by processing the flat honeycomb panel into a concave curved surface structure according to the design requirements (see Figure 1 , Figure 2 ). In the prior art, the processing of the curved surface of the honeycomb panel of the dual-band antenna is generally carried out by using a five-axis machining center and a ball-end milling cutter. This method has a long processing cycle and extremely high processing costs. In production, a special mold for processing the curved surface of the honeycomb panel of the dual-band antenna and a matching processing method are urgently needed to achieve rapid processing and effectively reduce costs. Summary of the invention

[0003] The problem to be solved by the present invention is to provide a processing mold for the curved surface of a honeycomb panel of a dual-band antenna.

[0004] The present invention adopts the following technical scheme: comprising a mold body, the overall structure of the mold body is a circular plate, the upper end surface of the circular plate is provided with a parabolic forming end, and the shape structure of the parabolic forming end matches the curved surface of the dual-band antenna honeycomb panel.

[0005] The principle is as follows: since the honeycomb panel material after pretreatment, curing and shaping still has a small degree of ductility, the present invention utilizes this feature of the honeycomb panel material to closely fit the cured and shaped honeycomb panel to the parabola forming end of the mold. At this time, the upper end surface shape of the honeycomb panel is deformed into a parabola as the material is uniformly stretched. On this basis, a plane milling cutter is used to perform milling processing on the upper end surface of the honeycomb panel transformed into a parabola on an ordinary milling machine according to the size required by the design. After demoulding, the honeycomb panel as a whole returns to a flat plate structure, and the milled portion of the honeycomb panel constitutes a concave surface, that is, the required dual-band antenna honeycomb panel surface is obtained.

[0006] Another problem to be solved by the present invention is to provide a method for processing the curved surface of a honeycomb panel of a dual-band antenna.

[0007] A method for processing a curved surface of a dual-band antenna honeycomb panel comprises the following steps:

[0008] 1) Material preparation: prepare honeycomb panels, double-sided tape, porous isolation film, breathable felt, vacuum bag film, sealing tape, and dual-band antenna honeycomb panel curved surface processing mold;

[0009] 2) Honeycomb panel pretreatment: Stretch the honeycomb panel in both the vertical and horizontal directions to solidify the honeycomb panel and cut it into a circular honeycomb panel according to the designed size;

[0010] 3) Upper mold: Evenly stick a layer of double-sided tape on the dual-band antenna honeycomb panel curved surface processing mold, and then lay the honeycomb panel obtained in step 2 flat on the dual-band antenna honeycomb panel curved surface processing mold;

[0011] 4) Vacuuming: Lay porous isolation film, breathable felt and vacuum bag film on the honeycomb panel, and vacuumize it to make the honeycomb panel evenly and firmly bonded to the dual-band antenna honeycomb panel curved surface processing mold;

[0012] 5) Milling honeycomb panel: After determining the center point, measure the height, adjust the milling cutter height, and use a flat milling cutter to mill off the protruding excess part of the honeycomb panel according to the milling cutter running line;

[0013] 6) Demolding: Remove the honeycomb panel, and the honeycomb panel will return to a flat plate structure as a whole. The part milled away in step 5 will form a concave surface, that is, the required dual-band antenna honeycomb panel surface will be obtained.

[0014] The present invention has the following advantages: 1. The mold structure is simple. 2. The processing is convenient and fast. Using the traditional five-axis machining center processing method, it takes more than 6.5 hours to process the curved surface of a dual-band antenna honeycomb panel. Using the processing method of the invented mold, it only takes 1 hour. 3. The method of the present invention reduces the cost by more than 90% compared with the traditional five-axis machining center processing method. Taking the dual-band antenna honeycomb panel with a processing specification of 1300mm×1300mm as an example, the processing fee of the five-axis processing method is 2,200 yuan; the method of the present invention requires a one-time investment of 10,000 yuan in mold fees, the mold can be used for a long time, and the processing fee is only 100 yuan. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the curved surface of the honeycomb panel of the dual-band antenna.

[0016] Figure 2 yes Figure 1 Schematic diagram of the top view structure.

[0017] Figure 3 The present invention is a schematic structural diagram of an embodiment of a dual-band antenna honeycomb panel curved surface processing mold.

[0018] Figure 4 It is a schematic diagram of the fitting structure between the honeycomb panel and the parabolic forming end of the mold.

[0019] Figure 5 It is a schematic diagram of the principle of the vacuuming step of the processing method of the present invention.

[0020] Figure 6 It is a schematic diagram of the principle of the milling step of the processing method of the present invention.

[0021] In the figure: mold body 1, parabola forming end 2, honeycomb panel 3, milling cutter 4, double-sided tape 5, porous isolation film 6, breathable felt 7, vacuum bag film 8, sealing tape 9, vacuum pipeline 10, center point 11, milling cutter running line 12. DETAILED DESCRIPTION

[0022] like Figures 3 to 6 As shown, an embodiment of a dual-band antenna honeycomb panel curved surface processing mold includes a mold body 1, the overall structure of the mold body 1 is a circular plate, the upper end surface of the circular plate is provided with a parabolic forming end 2, and the surface structure of the parabolic forming end 2 matches the curved surface of the dual-band antenna honeycomb panel.

[0023] The principle is as follows: since the honeycomb panel material after pretreatment, curing and shaping still has a small degree of ductility, the present invention utilizes this feature of the honeycomb panel material to closely fit the cured and shaped honeycomb panel 3 to the parabola forming end 2 of the mold. At this time, the upper end surface shape of the honeycomb panel 3 is deformed into a parabola as the material is uniformly stretched. On this basis, the upper end surface of the honeycomb panel 3 transformed into a parabola is milled on a common milling machine using a plane milling cutter 4 according to the size required by the design. After demoulding, the honeycomb panel 3 as a whole returns to a flat plate structure, and the milled portion of the honeycomb panel 3 constitutes a concave surface, that is, the required dual-band antenna honeycomb panel surface is obtained.

[0024] like Figures 1 to 6 As shown, a method for processing the curved surface of a dual-band antenna honeycomb panel comprises the following steps:

[0025] 1) Material preparation: prepare honeycomb panel 3, double-sided tape 5, porous isolation film 6, breathable felt 7, vacuum bag film 8, sealing tape 9, dual-band antenna honeycomb panel curved surface processing mold (design and process according to the data design requirements of the dual-band antenna honeycomb panel curved surface);

[0026] 2) Pretreatment of the honeycomb panel 3: stretching the honeycomb panel 3 in both the longitudinal and transverse directions to solidify and shape the honeycomb panel 3, and cutting it into a circular honeycomb panel 3 according to the designed size;

[0027] 3) Upper mold: evenly stick a layer of double-sided tape 5 on the dual-band antenna honeycomb panel curved surface processing mold, and then lay the honeycomb panel 3 obtained in step 2) on the dual-band antenna honeycomb panel curved surface processing mold;

[0028] 4) Vacuuming: Lay porous isolation film 6, breathable felt 7, vacuum bag film 8 on the honeycomb board 3, and vacuumize ( Figure 5 It is shown that a vacuum pipeline 10 and a sealing tape 9 need to be provided so that the honeycomb panel 3 as a whole is evenly and firmly bonded to the dual-band antenna honeycomb panel curved surface processing mold;

[0029] 5) Milling honeycomb panel: determine the position of the center point 11, measure the height dimension, adjust the height of the milling cutter 4, and use the plane milling cutter 4 to mill off the protruding excess part of the honeycomb panel 3 according to the milling cutter running line 12;

[0030] 6) Demolding: remove the honeycomb panel 3, and the honeycomb panel 3 is restored to a flat plate structure as a whole. The part milled away in step 5) constitutes a concave surface, that is, the required dual-band antenna honeycomb panel surface is obtained.

[0031] In step 5) of the above processing method, a multimeter can be used to determine the position of the center point 11 and mark it. In step 6) of the above processing method, the obtained product needs to be tested, and multiple measurement points are selected at set intervals for the concave surface to measure the thickness. If the thickness that meets the design requirements is within the tolerance range, it is a qualified product.

[0032] The dual-band antenna honeycomb panel curved surface product processed by the processing method of the present invention can meet the technical requirements of the product and achieve low processing cost.

[0033] The present invention is not limited to the specific structure of the above embodiment, and its processing method is not limited to the above specific method steps. Other equivalent transformations of similar structures and similar methods all fall within the protection scope of the present invention.

Claims

1. A method for processing a curved surface of a dual-band antenna honeycomb panel, comprising the following steps: 1) Material preparation: prepare honeycomb panels, double-sided tape, porous isolation film, breathable felt, vacuum bag film, sealing tape, and dual-band antenna honeycomb panel curved surface processing mold; the dual-band antenna honeycomb panel curved surface processing mold includes a mold body, the overall structure of the mold body is a circular plate, the upper end surface of the circular plate is provided with a parabolic forming end, and the shape structure of the parabolic forming end matches the curved surface of the dual-band antenna honeycomb panel; 2) Honeycomb panel pretreatment: stretch the honeycomb panel in both the longitudinal and transverse directions to solidify the honeycomb panel and cut it into a circular honeycomb panel according to the designed size; 3) Upper mold: Evenly stick a layer of double-sided tape on the dual-band antenna honeycomb panel curved surface processing mold, and then lay the honeycomb panel obtained in step 2 on the dual-band antenna honeycomb panel curved surface processing mold; 4) Vacuuming: Lay a porous isolation film, breathable felt, and vacuum bag film on the honeycomb panel, and evacuate the panel to make the entire honeycomb panel evenly and firmly bonded to the dual-band antenna honeycomb panel curved surface processing mold; 5) Milling honeycomb panel: After determining the center point, measure the height, adjust the milling cutter height, and use a flat milling cutter to mill off the protruding excess part of the honeycomb panel according to the milling cutter running line; 6) Demolding: remove the honeycomb panel, and the honeycomb panel as a whole returns to a flat plate structure. The part milled away in step 5 constitutes a concave surface, that is, the required dual-band antenna honeycomb panel surface is obtained.

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