CN104103908A - Stamping-gluing composite forming method for small antenna reflecting surface - Google Patents
Stamping-gluing composite forming method for small antenna reflecting surface Download PDFInfo
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- CN104103908A CN104103908A CN201410365583.8A CN201410365583A CN104103908A CN 104103908 A CN104103908 A CN 104103908A CN 201410365583 A CN201410365583 A CN 201410365583A CN 104103908 A CN104103908 A CN 104103908A
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Abstract
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
The present invention relates to the manufacture method of a kind of small size antenna reflecting surface in radar antenna manufacturing engineering field, be 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, and Related product has been widely used in field of broadcast televisions.Gluing antenna reflective face adopts after aluminium alloy plate material forming covering with aluminium section bar after the shape of school is gluing and becomes reflecting surface unit, gluing antenna-reflected surface accuracy is far above punching press antenna reflective face, and the Related product of gluing antenna reflective face has been applied to satellite communication, observing and controlling, survey of deep space field.
China Patent No. is 201210228699.8, name is called in the patent of a < < high-precision antenna reflector moulding process > > and discloses a kind of punch forming reflecting surface manufacturing process, and this technique is outer by one time punching molded reflecting surface internal layer and reflecting surface; Reflecting surface internal layer is placed on secondary forming die to coating adhesive on reflecting surface internal layer; Reflecting surface skin is placed on the reflecting surface internal layer that scribbles binding agent; By secondary forming die matched moulds pressurize a period of time, to adhesive cures, complete the compacting of high-precision antenna reflector, but be similar to such punch forming reflecting surface from great, processing technology is complicated, panel is short useful life.
China Patent No. is 201010214168.4, name is called the manufacture method that discloses a kind of high-precision antenna reflector in the patent of < < accuracy antenna reflecting surface panel and manufacture method > > thereof, the method adopts the Z-type material of school type fluting to realize the shaping of muscle beam, adopt aluminum alloy plate materials to slot to realize the shaping of covering, by sealing and vacuum plant, apply negative pressure, the separation assemblies such as Z-type material muscle beam and covering are overlayed on mould and as a whole by the bonding curing molding of adhesive, after discharging negative pressure of vacuum, form high accuracy muscle fluting adhesive structure antenna reflective face unit.But the method is only applicable to the moulding of super large caliber antenna reflective face, in the situation that panel unit area incurvature is less, there is good effect, and for inapplicable compared with the high-precision antenna reflector of deep camber or irregular type.
Summary of the invention
Technical problem to be solved by this invention be to avoid the weak point in above-mentioned background and provide that a kind of precision is high, processing technology is simple, the gluing composite forming method of punching press of the small size antenna reflecting surface of low cost of manufacture.Be specially adapted to the batch manufacture of compact high precision antenna reflective face.
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 the diel of manufacturing antenna-reflected faceplate panels; 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-reflected faceplate panels;
Step 3: the surrounding at reflection surface panel offers a plurality of for discharging the notch of stress;
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, obtain antenna reflective face after curing molding.
Wherein, the curved surface of described core is evenly equipped with a plurality of vacuum suction hole.
Wherein, the notch in step 3 is 8, in the surrounding of reflection surface panel, is uniformly distributed.
Wherein, step 4 specifically comprises the following steps:
(401) reflection surface panel is placed on core, alignment profile adopts adhesive tape sealing core and reflection surface panel surrounding gap;
(402) by the uniform vacuum suction hole of mandrel surface, vacuumize, the gap between reflection surface panel and core curved surface forms negative pressure, and under the effect of atmospheric pressure, reflection surface panel and core curved surface are fitted completely.
The present invention and background technology comparison tool have the following advantages:
1, China Patent No. is 201210228699.8, name is called < < high-precision antenna reflector moulding process > > and needs punch forming reflecting surface internal layer and the outer two-layer panel altogether of reflecting surface, need to adopt secondary forming die matched moulds to complete antenna reflective face internal layer and outer field gluing moulding, rely on internal layer and the tension stress of outer panel and the counteracting of compression to improve surface precision.And the present invention only needs panel of punching press, adopt stress relief grooves mode to improve the surface precision of panel after gluing; Adopt punching press, gluing common type core to replace secondary forming die, thus the present invention compare technique with background technology more simple, weight reducing 50%, production cost and die cost are lower.
2. China Patent No. is 201010214168.4, name is called < < accuracy antenna reflecting surface panel and manufacture method > > adopts aluminum alloy plate materials to open stress relief grooves, on mould, negative pressure of vacuum absorption is gluing carrys out moulding reflecting surface, but the method is only applicable to the moulding of super large caliber antenna reflective face, in the situation that panel unit area incurvature is less, there is good effect.And the present invention adopts Sheet Metal Forming Technology moulding deep camber Reflector Panel in advance, then in conjunction with stress relief grooves, the high-precision antenna reflector of plastic larger deep camber or irregular type.
Accompanying drawing explanation
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.
Embodiment
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 shown in Figure 1, die main body comprises traps 1, core 2, edge mould 3, upper cover 4, all adopts steel-casting, after annealing, processes; Its core mould 2 is designed to punching press, gluing common type core, and core 2 adopts full-closed structure for reaching the object of negative pressure of vacuum absorption, the vacuum suction hole of the uniform Φ 2 of curved surface, and 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 antenna-reflected faceplate panels; Adopt 300 tons of double action hydraulic presses, pack diel into; Reflection surface panel 5 adopts 3A21-O aluminum alloy plate materials, and thickness is 1.5mm, and sheet material cuts rear profile and is slightly larger than 1 external diameter of trapping; As shown in Figure 2, aluminum alloy plate materials is placed in traps on 1, start hydraulic press, upper plate drive edge mould 3 and upper cover 4 are descending, first edge mould 3 touches reflection surface panel 5, relies on spring 6 pressure by reflection surface panel 5 and 1 compression of trapping, and upper cover 4 continues to stop after descending moulding reflection surface panel 5 peripheral flanging structures, core 2 under the effect of hydraulic press secondary oil cylinder, upper top moulding reflection surface panel 5 curved surfaces.Unload after reflection surface panel 5, cut the unnecessary plate of reflection surface panel 5 surrounding finishing.
Step 3: the surrounding at reflection surface panel 5 offers a plurality of for discharging the notch of stress; In reflection surface panel 5 surroundings, rule and cut the stress relief grooves of 8 group 2 * 180 as shown in Figure 3, standby after otch removal burr.
Step 4: adopt negative pressure of vacuum mode that reflection surface panel 5 and the curved surface of core 2 are fitted completely; As shown in Figure 4 reflection surface panel 5 is placed on core 2, alignment profile adopts adhesive tape sealing core 2 and reflection surface panel 5 surrounding gaps, access vacuum pump conduit 7 vacuumizes and makes core 2 inner chambers form negative pressure, by core 2 uniform Φ 2 vacuum suction holes, surface, gap between reflection surface panel 5 and core 2 curved surfaces forms negative pressure equally, therefore under the effect of atmospheric pressure, reflection surface panel 5 can be fitted completely with core 2 curved surfaces, by vacuum meter 8, observe core 2 inner chamber vacuum degrees, guarantee without obviously leaking.
Step 5: carry out gluing backing strip framework at reflection surface panel 5 backs of fitting completely with core 2 curved surfaces, obtain antenna reflective face after curing molding; As shown in Figure 6, in the situation that keeping reflection surface panel 5 with core 2 curved surface negative-pressure adsorption, the gluing web 9 successively at reflection surface panel 5 backs, web 10, web 11, web 12, web 13 and centerbody 14 also keep negative-pressure adsorption until adhesive solidification, its median ventral plate 9 to 13 has covered the Stress Release seam on panel completely, 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 sealing core 2 and reflection surface panel 5 surrounding gaps;
(402) by core 2 uniform vacuum suction holes, surface, vacuumize, the gap between reflection surface panel 5 and core 2 curved surfaces forms negative pressure, and under the effect of atmospheric pressure, reflection surface panel 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 the following steps:
Step 1: according to the curved design of antenna-reflected faceplate panels the diel of manufacturing antenna-reflected faceplate panels; 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-reflected faceplate panels;
Step 3: the surrounding at reflection surface panel offers a plurality of for discharging the notch of stress;
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, obtain antenna reflective face after curing molding.
2. the gluing composite forming method of a kind of small size antenna reflecting surface according to claim 1 punching press, is characterized in that: the curved surface of described core is evenly equipped with a plurality of vacuum suction hole.
3. the gluing composite forming method of a kind of small size antenna reflecting surface according to claim 1 punching press, is characterized in that: the notch in step 3 is 8, in the surrounding of reflection surface panel, is uniformly distributed.
4. the gluing composite forming method of a kind of small size antenna reflecting surface according to claim 1 punching press, 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 reflection surface panel surrounding gap;
(402) by the uniform vacuum suction hole of mandrel surface, vacuumize, the gap between reflection surface panel and core curved surface forms negative pressure, and under the effect of atmospheric pressure, reflection surface panel and core curved surface are fitted completely.
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| Application Number | Priority Date | Filing Date | Title |
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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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105470654A (en) * | 2015-12-18 | 2016-04-06 | 西安电子科技大学 | Electrostatic figuration thin film reflecting surface splicing mold and electrostatic figuration thin film reflecting surface splicing method |
| 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 |
| CN108394118A (en) * | 2018-03-02 | 2018-08-14 | 商丘工学院 | A kind of mechanical material prepares mold |
| CN111912297A (en) * | 2020-07-27 | 2020-11-10 | 香河星通科技有限公司 | Multi-curved-surface alloy plate, bulletproof insert and bulletproof vest |
| CN113725623A (en) * | 2021-08-30 | 2021-11-30 | 湖南航天环宇通信科技股份有限公司 | Antenna reflecting surface with back rib and forming method thereof |
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| CN101938041A (en) * | 2010-07-01 | 2011-01-05 | 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 |
| CN102738593A (en) * | 2012-07-04 | 2012-10-17 | 四川省视频电子有限责任公司 | High-precision antenna reflector forming process |
| CN103247864A (en) * | 2013-05-10 | 2013-08-14 | 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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| EP0476228A1 (en) * | 1990-08-20 | 1992-03-25 | Bridgestone Corporation | Reflector and method of and apparatus for fabricating the same |
| CN101938041A (en) * | 2010-07-01 | 2011-01-05 | 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 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470654A (en) * | 2015-12-18 | 2016-04-06 | 西安电子科技大学 | Electrostatic figuration thin film reflecting surface splicing mold and electrostatic figuration thin film reflecting surface splicing method |
| 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 |
| CN108394118A (en) * | 2018-03-02 | 2018-08-14 | 商丘工学院 | A kind of mechanical material prepares mold |
| CN111912297A (en) * | 2020-07-27 | 2020-11-10 | 香河星通科技有限公司 | Multi-curved-surface alloy plate, bulletproof insert and bulletproof vest |
| CN113725623A (en) * | 2021-08-30 | 2021-11-30 | 湖南航天环宇通信科技股份有限公司 | Antenna reflecting surface with back rib and forming method thereof |
| 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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| CN104103908B (en) | 2016-05-04 |
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