CN104103908B - A kind of gluing composite forming method of punching press of small size antenna reflecting surface - Google Patents
A kind of gluing composite forming method of punching press of small size antenna reflecting surface Download PDFInfo
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- CN104103908B CN104103908B CN201410365583.8A CN201410365583A CN104103908B CN 104103908 B CN104103908 B CN 104103908B CN 201410365583 A CN201410365583 A CN 201410365583A CN 104103908 B CN104103908 B CN 104103908B
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Abstract
The invention discloses the gluing composite forming method of punching press of a kind of small size antenna reflecting surface in radar antenna manufacturing engineering field, by Sheet Metal Forming Technology contoured beam antenna reflecting surface, be used for emission surface intralamellar part stress at panel surrounding fluting, panel is positioned on mould and utilizes vacuum plant negative-pressure adsorption to make it to fit completely with die curve, the final solidified forming high-precision antenna reflector of gluing antenna backing strip framework. The present invention has that precision is high, processing technology is simple, low cost of manufacture, the advantage such as can be mass, and is specially adapted to the batch manufacture of compact high precision antenna reflective face.
Description
Technical field
The present invention relates to the system of a kind of small size antenna reflecting surface in radar antenna manufacturing engineering fieldMaking method, is specially a kind of gluing composite forming method of punching press of small size antenna reflecting surface.
Background technology
Punching press antenna reflective face adopts sheet metal by hydraulic press punch forming, with low cost,Can be mass, Related product has been widely used in field of broadcast televisions. Gluing antenna reflective faceAdopt after aluminium alloy plate material forming covering with aluminium section bar after the shape of school gluing become reflecting surface unit, glueGlue antenna-reflected surface accuracy far above punching press antenna reflective face, the relevant product of gluing antenna reflective faceProduct have been applied to satellite communication, observing and controlling, survey of deep space field.
China Patent No. is 201210228699.8, and name is called " a kind of high-precision antenna reflectionFace moulding process " patent in a kind of punch forming reflecting surface manufacturing process is disclosed, this techniqueBy one time punching molded reflecting surface internal layer and reflecting surface skin; Reflecting surface internal layer is placed on to twoOn inferior shaping mould, coating adhesive on reflecting surface internal layer; By reflecting surface skin be placed on scribble stickyOn the reflecting surface internal layer of knot agent; By secondary forming die matched moulds pressurize a period of time to binding agentSolidify, complete the compacting of high-precision antenna reflector, but it is anti-to be similar to such punch formingPenetrate face from great, processing technology is complicated, panel is short service life.
China Patent No. is 201010214168.4, and name is called " a kind of high-precision antenna reflectionFaceplate panels and manufacture method thereof " patent in a kind of manufacture of high-precision antenna reflector is disclosedMethod, the method adopts the Z-type material of school type fluting to realize the shaping of muscle beam, adopts aluminium alloyCutting groove on sheet is realized the shaping of covering, applies negative pressure by sealing and vacuum plant, makes ZThe separation assemblies such as section bar muscle beam and covering overlay on mould and by the bonding curing molding of adhesiveAs a whole, after release negative pressure of vacuum, form high accuracy muscle fluting adhesive structure antenna reflective faceUnit. But the method is only applicable to the moulding of super large caliber antenna reflective face, at panel listIn the less situation of elemental area incurvature, there is good effect, and for compared with deep camber or notThe high-precision antenna reflector of rule face type is inapplicable.
Summary of the invention
Technical problem to be solved by this invention be to avoid weak point in above-mentioned background andProvide that a kind of precision is high, processing technology is simple, the rushing of the small size antenna reflecting surface of low cost of manufactureComposite forming method is glued in moulding. Be specially adapted to the batch system of compact high precision antenna reflective faceMake.
The object of the present invention is achieved like this:
The gluing composite forming method of punching press of small size antenna reflecting surface, comprises the following steps:
Step 1: according to the curved design of antenna-reflected faceplate panels and manufacture antenna-reflected faceplate panelsDiel; Described diel comprise trap, core, edge mould and upper cover;
Step 2: the sheet material of reflection surface panel is carried out in diel to punching press, obtain antennaReflection surface panel;
Step 3: offer multiple for discharging the notch of stress in the surrounding of reflection surface panel;
Step 4: adopt negative pressure of vacuum mode that the curved surface of reflection surface panel and core is pasted completelyClose;
Step 5: carry out gluing backing strip at the reflection surface panel back of fitting completely with core curved surfaceFramework, obtains antenna reflective face after curing molding.
Wherein, the curved surface of described core is evenly equipped with multiple vacuum suction hole.
Wherein, the notch in step 3 is 8, is uniformly distributed in the surrounding of reflection surface panel.
Wherein, step 4 specifically comprises the following steps:
(401) reflection surface panel is placed on core, alignment profile adopts adhesive tape sealing coreMould and reflection surface panel surrounding gap;
(402) vacuumize reflecting surface face by the uniform vacuum suction hole of mandrel surfaceGap between plate and core curved surface forms negative pressure, under the effect of atmospheric pressure reflection surface panel withCore curved surface is fitted completely.
The present invention and background technology comparison tool have the following advantages:
1, China Patent No. is 201210228699.8, and name is called that " a kind of high-precision antenna is anti-Penetrate face moulding process " need punch forming reflecting surface internal layer and reflecting surface skin to be total to two-layer panel,Need to adopt secondary forming die matched moulds to complete antenna reflective face internal layer and outer field gluing moulding, comply withInner layer and the tension of outer panel and the counteracting of compression improve surface precision. And the present inventionOnly need panel of punching press, adopt stress relief grooves mode to improve the face type essence of panel after gluingDegree; Adopt punching press, gluing common type core to replace secondary forming die, therefore the present invention and backgroundIt is more simple that technology is compared technique, weight reducing 50%, and production cost and die cost are lower.
2. China Patent No. is 201010214168.4, and name is called " a kind of high-precision antenna reflectionFaceplate panels and manufacture method thereof " adopt aluminum alloy plate materials to open stress relief grooves, vacuum on mouldNegative-pressure adsorption gluing come moulding reflecting surface, but the method is only applicable to super large caliber antenna reflective faceMoulding, in the situation that panel unit area incurvature is less, have good effect.And the present invention adopts Sheet Metal Forming Technology moulding deep camber Reflector Panel in advance, then in conjunction with stress releaseGroove, the high-precision antenna reflector of plastic larger deep camber or irregular type.
Brief description of the drawings
Fig. 1 is diel schematic diagram;
Fig. 2 is reflection surface panel punching press schematic diagram;
Fig. 3 is the notch schematic diagram of reflection surface panel;
Fig. 4 is reflection surface panel and core vacuum suction schematic diagram;
Fig. 5 is the gluing schematic diagram of reflecting surface;
Fig. 6 is the left view of Fig. 5.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 6, the present invention will be further described
Step 1: manufacture and design diel according to reflecting surface curved surface and design feature, as Fig. 1Shown in, die main body comprises traps 1, core 2, and edge mould 3, upper cover 4, all adopts castingSteel part, processes after annealing; Its core mould 2 is designed to punching press, gluing shared coreMould, core 2 is for reaching the object employing full-closed structure of negative pressure of vacuum absorption, and curved surface is uniformThe vacuum suction hole of Φ 2, periphery arranges vacuum pipeline interface and vacuum meter interface.
Step 2: the sheet material of reflection surface panel 5 is carried out in diel to punching press, obtain skyLine reflection faceplate panels; Adopt 300 tons of double action hydraulic presses, pack diel into; Reflection surface panel5 adopt 3A21-O aluminum alloy plate materials, and thickness is 1.5mm, and sheet material cuts rear profile and is slightly larger than1 external diameter of trapping; As shown in Figure 2, aluminum alloy plate materials is placed in traps on 1, starts hydraulic press,Upper plate drive edge mould 3 and upper cover 4 are descending, and first edge mould 3 touches reflection surface panel5, rely on spring 6 pressure by reflection surface panel 5 and 1 compression of trapping, upper cover 4 continues descendingAfter moulding reflection surface panel 5 peripheral flanging structures, stop, core 2 is at hydraulic press secondary oil cylinderUnder effect, upper top moulding reflection surface panel 5 curved surfaces. Unload after reflection surface panel 5, cut anti-Penetrate the unnecessary plate of faceplate panels 5 surrounding finishing.
Step 3: offer multiple for discharging the groove of stress in the surrounding of reflection surface panel 5Mouthful; Rule and cut the stress of 8 group 2 × 180 in reflection surface panel 5 surroundings as shown in Figure 3Release groove, for subsequent use after otch removal burr.
Step 4: adopt negative pressure of vacuum mode that reflection surface panel 5 is complete with the curved surface of core 2Laminating; As shown in Figure 4 reflection surface panel 5 is placed on core 2, alignment profile adopts glueBand sealing core 2 and reflection surface panel 5 surrounding gaps, access vavuum pump conduit 7 vacuumizes and makesCore 2 inner chambers form negative pressure, by core 2 uniform Φ 2 vacuum suction holes, surface, reflectionThe same negative pressure that forms in gap between faceplate panels 5 and core 2 curved surfaces, therefore at the work of atmospheric pressureCan fit completely with core 2 curved surfaces with lower reflection surface panel 5, observe core by vacuum meter 82 inner chamber vacuums, guarantee without obviously leaking.
Step 5: carry out gluing at reflection surface panel 5 backs of fitting completely with core 2 curved surfacesBacking strip framework, obtains antenna reflective face after curing molding; As shown in Figure 6, keeping reflecting surfaceIn the situation of panel 5 and core 2 curved surface negative-pressure adsorption, at reflection surface panel 5 backs glue successivelySticky web 9, web 10, web 11, web 12, web 13 and centerbody 14 also keepNegative-pressure adsorption is until adhesive solidification, its median ventral plate 9 to 13 covered completely on panel shouldPower discharges seam, and last removal pressure takes off antenna reflective face and carries out surface precision detection.
Wherein, step 4 comprises the following steps:
(401) reflection surface panel 5 is placed on core 2, alignment profile adopts adhesive tape sealingCore 2 and reflection surface panel 5 surrounding gaps;
(402) vacuumize reflecting surface face by core 2 uniform vacuum suction holes, surfaceGap between plate 5 and core 2 curved surfaces forms negative pressure, under the effect of atmospheric pressure, reflectsFaceplate panels 5 is fitted completely with core 2 curved surfaces.
Claims (4)
1. the gluing composite forming method of the punching press of small size antenna reflecting surface, is characterized in that comprising following stepRapid:
Step 1: according to the curved design of antenna-reflected faceplate panels and manufacture the stamping die of antenna-reflected faceplate panelsTool; Described diel comprise trap, core, edge mould and upper cover;
Step 2: the sheet material of reflection surface panel is carried out in diel to punching press, obtain antenna reflective face facePlate;
Step 3: offer multiple for discharging the notch of stress in the surrounding of reflection surface panel;
Step 4: adopt negative pressure of vacuum mode that the curved surface of reflection surface panel and core is fitted completely;
Step 5: carry out gluing backing strip framework at the reflection surface panel back of fitting completely with core curved surface, GuAfter changing into type, obtain antenna reflective face.
2. the gluing composite forming method of the punching press of a kind of small size antenna reflecting surface according to claim 1,It is characterized in that: described core is the gluing commonality core of punching press, and core curved surface is evenly equipped with multiple vacuum suctionHole.
3. the gluing composite forming method of the punching press of a kind of small size antenna reflecting surface according to claim 1,It is characterized in that: the notch in step 3 is 8, is uniformly distributed in the surrounding of reflection surface panel.
4. the gluing composite forming method of the punching press of a kind of small size antenna reflecting surface according to claim 1,It is characterized in that: step 4 specifically comprises the following steps:
401, reflection surface panel is placed on core, alignment profile adopts adhesive tape sealing core and reflecting surface facePlate surrounding gap;
402, vacuumize reflection surface panel and core curved surface by the uniform vacuum suction hole of mandrel surfaceBetween gap form negative pressure, under the effect of atmospheric pressure, reflection surface panel and core curved surface are fitted completely.
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| CN201410365583.8A CN104103908B (en) | 2014-07-29 | 2014-07-29 | A kind of gluing composite forming method of punching press of small size antenna reflecting surface |
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| CN201410365583.8A CN104103908B (en) | 2014-07-29 | 2014-07-29 | A kind of gluing composite forming method of punching press of small size antenna reflecting surface |
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| CN105470654B (en) * | 2015-12-18 | 2018-05-01 | 西安电子科技大学 | Splice mould and Electrostatic deformation film reflector face joining method in Electrostatic deformation film reflector face |
| CN105459296A (en) * | 2015-12-23 | 2016-04-06 | 中国电子科技集团公司第五十四研究所 | Light-weight die for high-precision large-sized antenna for radio astronomy and manufacturing method thereof |
| CN106099383A (en) * | 2016-07-21 | 2016-11-09 | 贵州振华天通设备有限公司 | A kind of high-precision antenna reflector processing method |
| CN107984868A (en) * | 2017-12-26 | 2018-05-04 | 珠海格力电器股份有限公司 | Pressure device and pressing method |
| CN108394118B (en) * | 2018-03-02 | 2019-08-02 | 商丘工学院 | A kind of mechanical material prepares mold |
| CN113725623B (en) * | 2021-08-30 | 2024-05-24 | 湖南航天环宇通信科技股份有限公司 | Antenna reflecting surface with back ribs and forming method thereof |
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| EP0476228A1 (en) * | 1990-08-20 | 1992-03-25 | Bridgestone Corporation | Reflector and method of and apparatus for fabricating the same |
| CN101938041B (en) * | 2010-07-01 | 2013-06-12 | 中国电子科技集团公司第五十四研究所 | High-accuracy antenna reflecting surface panel and manufacturing method thereof |
| CN102738593B (en) * | 2012-07-04 | 2014-12-31 | 四川省视频电子有限责任公司 | High-precision antenna reflector forming process |
| CN103247864B (en) * | 2013-05-10 | 2015-06-03 | 中国电子科技集团公司第五十四研究所 | High-precision spinning antenna reflecting surface and manufacturing method thereof |
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