CN106887713A - A kind of processing method of ring-focus antenna minor face rotary press modelling - Google Patents
A kind of processing method of ring-focus antenna minor face rotary press modelling Download PDFInfo
- Publication number
- CN106887713A CN106887713A CN201710286457.7A CN201710286457A CN106887713A CN 106887713 A CN106887713 A CN 106887713A CN 201710286457 A CN201710286457 A CN 201710286457A CN 106887713 A CN106887713 A CN 106887713A
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- Prior art keywords
- subreflector
- ring
- panel
- face
- minor face
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/141—Apparatus or processes specially adapted for manufacturing reflecting surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a kind of processing method of ring-focus antenna minor face rotary press modelling, it is related to a kind of high precision, high efficiency, the antenna minor face processing method of low cost, it is adaptable to the rapid shaping of the antenna minor face of ring Jiao's structure type.By using the method that has mould spinning ring-focus antenna subreflector, it is to avoid the production cycle of the mode of conventional " casting+machining " is long, and percent defective problem high, spinning process is reproducible, easily operated, is suitable to batch production.
Description
Technical field
The present invention relates to the spinning manufacturing technology field of ring-focus antenna minor face, and in particular to a kind of high precision, high efficiency, low
The antenna minor face processing method of cost, it is adaptable to the rapid shaping of the antenna minor face of ring Jiao's structure type.
Background technology
Ring-focus antenna is also called the parabola symmetrical dual reflector antenna of focal axis offset axis, and antenna uses double-reflecting face structure.
This antenna is designed as a result of ring is burnt, therefore is overcome antenna corrugated horn completely and blocked and cause secondary more than subreflector
The shortcoming blocked, therefore with low sidelobe, the efficiency particularly aperture efficiency of antenna is high, and standing-wave ratio is small, and working frequency is wide.Ring is burnt
The subreflector of antenna has elliposoidal and a doubly curved two kinds of specifications, and widely used at present is spheroid shape ring-focus antenna.Should
The primary reflection surface of antenna uses partial paraboloid, and subreflector is around antenna feed central point, with antenna by one section of elliptic arc
The geometric center point of the main surface of emission determines the surface of revolution that straight line rotation is produced.
At present, the subreflector of ring-focus antenna is generally obtained by the way of " casting+machining ".But in casting process
Cycle is more long, and there is certain defect in ingot casting, causes minor face percent defective very high always.As the production of antenna mass is needed
Ask, current process technology cannot meet the use requirement of production, seriously constrain the progress of antenna processing.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of processing method of ring-focus antenna minor face rotary press modelling, the method
Precision machining is high, efficiency high, low cost, is particularly well-suited to the batch production of ring-focus antenna subreflector.
In order to solve the above technical problems, the technical solution used in the present invention is：
There is provided a kind of processing method of ring-focus antenna minor face rotary press modelling, it is characterised in that：The method specifically include with
Lower step：
S1, set up model：The block mold of ring-focus antenna minor face is set up, block mold is carried out into split design sets up required
Subreflector panel theoretical model and subreflector face point theoretical model；
S2, prepare subreflector plate：Theoretical model according to subreflector uses spinning machine spinning sheet metal, by metal
Sheet material is spun into the frustum with a necking end and a flared end, and necking end to Diameter Gradual Change between flared end increases, and spinning is complete
Obtain preparing the subreflector panel for finishing after finishing；
S3, prepare subreflector face point：Theoretical model according to subreflector face point uses machining set-up turning metal
Base, metal embryo is lathed with a cone sophisticated and that gradual change increases by tip, and the flared end of subreflector face point is
Horizontal end face, obtains preparing the subreflector face point for finishing；
S4, annealing：The subreflector panel of rotary press modelling is carried out into annealing heat treatment process；
S5, prepare subreflector：Subreflector face point is placed in the top of subreflector panel, the expansion of subreflector face point
The edge at mouth end is just relative with the edge of the necking end in subreflector panel to be connect, by subreflector face point and subreflector face
Plate is fixedly connected, and obtains subreflector；
S6, foaming：Integral foam is carried out in the internal cavities of subreflector panel；
S7, bonding backboard：In the gluing backboard in the back of subreflector；
S8, finishing：Subreflector surface is finished, the processing of ring-focus antenna subreflector is completed.
Further, in S2 steps, the preferential edge to sheet metal is turned over before subreflector panel is prepared
It is prepared by side, the spinning for carrying out subreflector panel after being finished to sheet metal flange again；
Further, in S2 steps, the flared end of described frustum is opening, and the necking end of described frustum forms one
Platform.
Further, in the S2 steps subreflector plate make finish after be provided with through hole in the center of subreflector plate,
Screw is provided with subreflector face point bottom in S3 steps, screw rod is fitted with the screw, in S5 steps, before foaming,
The screw rod of subreflector face point through the screw being provided with subreflector plate, it is gluing finish after on screw rod fitting nut to fasten
Subreflector plate and subreflector face point.
Further, the sheet metal in described S2 steps is aluminum alloy plate materials.
Further, in S7 steps, bonding is bonded crosswise reinforcement after finishing at the spinning minor face back side, and crosswise adds
The strong summit of muscle is fixedly connected with the inwall of subreflector.
Complete the processing of ring-focus antenna subreflector.
It is using the beneficial effect produced by above-mentioned technical proposal：
(1) range of work is wide, the antenna subreflector in various different-thickness faces can be made, without preparing mould.According to
The ability of spinning machine can make the antenna minor face in the range of 2.4-13m.
(2) stock utilization is high, and stock utilization is higher than 90%, and total amount mitigates 18%, low production cost.
(3) product properties is significantly improved.Materials microstructure structure changes with mechanical property after spinning, and tension is strong
Degree, yield strength and hardness are all improved.
(4) product surface roughness is low, and dimensional tolerance is small.The surface roughness of the method fabricated product is 3.2~1.6 μ
m。
(5) in spinning process, due to the approximate pointwise deformation of product blanks；Therefore, any of which slag inclusion, crackle, sand holes
It is easy to be exposed etc. defect.So, spinning process is also accompanied by playing the role of inspection to product, and yield rate is close to 100%.
(6) compared with the technique for casting and being machined subreflector, spinning process foreshortened to 1 by original 1.5 months
Week, efficiency improves 80%.
(7) reflecting surface preparation is carried out using casting technique, time-consuming in casting process for casting technique, easily produces gas
Bubble, the subreflector that preparation is finished is heavier, and rough surface is also needed to subsequently be finished, and its wastes time and energy, and the present invention is adopted
Spinning process can prevent such defect, substantially increase yield rate and reduction is prepared often.
Brief description of the drawings
Fig. 1 is the structural representation of ring-focus antenna subreflector prepared by the present invention.
In figure, backboard 1, bolt 2, screw rod 3, crosswise reinforcement 4, fastening bolt 5, subreflector point 6, subreflector 7.
Specific embodiment
The invention provides a kind of new ring-focus antenna subreflector structure, described subreflector by lobe portion and
Frusto-conical portion is constituted, and described frusto-conical portion carries necking end and flared end, and necking end to flared end Diameter Gradual Change increases, described
The bottom of prismoid section be flared end, the flared end of frustum carries flange, and the top surface of frusto-conical portion is necking end, frusto-conical portion
Top surface is the end face that metal platform is formed, and described lobe portion is cone point, is fixed in the bottom surface center of lobe portion and connected
A screw rod 3 is connected to, fastening bolt 5 is fitted with screw rod 3, spur upper band has the groove for being embedded in fastening bolt 5, and described is convex
The screw rod of nose part passes through the through hole reserved at the necking end of frusto-conical portion, and the edge of lobe portion is relative with the necking end of frustum
Connect to form a cone, be also fitted with a bolt on screw rod in frusto-conical portion, bolt will be by screw rod by spur after screwing
Part is locked on frusto-conical portion, and expanded material, the frustum after expanded material and bending are filled with the inner chamber of frusto-conical portion
The edge of partial flared end is flush, and backboard is bonded with the flared end of frusto-conical portion.
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
A kind of processing method of ring-focus antenna minor face rotary press modelling, wherein：The method specifically includes following steps：
S1, set up model：The block mold of 7.3m ring-focus antenna minor faces is set up, block mold is offset downward along axis
36mm as die joint, using die joint carried out as boundary the subreflector panel needed for split design is set up theoretical model and
The theoretical model of subreflector face point；
S2, prepare subreflector plate：Theoretical model according to subreflector cuts corresponding sheet metal, and by metallic plate
Material is fitted on the rotation platform of spinning machine, and pressing mold is carried on spinning machine, and sheet metal is rolled and is depressed into admittedly by pressing mold along both fixed track movements
Setting shape, described sheet metal will be spun into the big frustum of Diameter Gradual Change contracting along axis laterally from center, and frustum has expansion
Mouth end and necking end, the top surface of described frustum is the end face that necking end is metal platform formation, and the bottom surface of frustum is flared end,
The flared end of frustum carries flange, to prepare subreflector panel；
S3, prepare subreflector face point：Theoretical model according to subreflector face point uses machining set-up turning metal
Base, metal embryo is lathed with a cone sophisticated and that gradual change increases by tip, and the bottom of subreflector face point is enlarging
It is horizontal end face to hold, and the summit of subreflector face point is cusp, and subreflector face point is obtained to prepare completion；
S4, annealing：The subreflector panel of rotary press modelling is carried out into annealing heat treatment process, from aluminium alloy, and is used
Corresponding Technology for Heating Processing；
S5, prepare subreflector：Subreflector face point is placed in the top of subreflector panel, the bottom of subreflector face point
Portion edge is just connect with the top sides in subreflector panel along relative, and subreflector face point is carried out into glue with subreflector panel
Metal padding gum is glued and fills up, and additional screws nut is fixed, to prepare subreflector；
S6, bonding reinforcement：In the gluing reinforcement in the back of subreflector；Gluing 4 reinforcements, each reinforcement is formed
Crosswise, angle Support is gluing is reinforced using 10 auxiliary for each reinforcement and subreflector back.
S7, foaming：Integral foam is carried out in the internal cavities of subreflector panel；
S8, bonding backboard：In the gluing backboard in the back of subreflector；Back plate thickness is 3mm, and machined good corresponding fixed
Position hole.
S9, finishing：Subreflector surface is finished, the processing of 7.3m ring-focus antenna subreflectors is completed.
Minor face precision after machining processes index 0.2mm (RMS) better than conventional mechanical.
Claims (6)
1. a kind of processing method of ring-focus antenna minor face rotary press modelling, it is characterised in that：The method specifically includes following steps：
S1, set up model：The block mold of ring-focus antenna minor face is set up, block mold is carried out into the pair needed for split design is set up
The theoretical model of the theoretical model of reflection surface panel and subreflector face point；
S2, prepare subreflector plate：Theoretical model according to subreflector uses spinning machine spinning sheet metal, by sheet metal
The frustum with a necking end and a flared end is spun into, necking end to Diameter Gradual Change between flared end increases, after spinning is finished
Obtain preparing the subreflector panel for finishing；
S3, prepare subreflector face point：Theoretical model according to subreflector face point uses machining set-up turning metal base, will
Metal embryo is lathed with a cone sophisticated and that gradual change increases by tip, and the flared end of subreflector face point is horizontal ends
Face, obtains preparing the subreflector face point for finishing；
S4, annealing：The subreflector panel of rotary press modelling is carried out into annealing heat treatment process；
S5, prepare subreflector：Subreflector face point is placed in the top of subreflector panel, the flared end of subreflector face point
Edge it is just relative with the edge of the necking end in subreflector panel connect, by subreflector face point consolidate with subreflector panel
Fixed connection, obtains subreflector；
S6, foaming：Integral foam is carried out in the internal cavities of subreflector panel；
S7, bonding backboard：In the gluing backboard in the back of subreflector；
S8, finishing：Subreflector surface is finished, the processing of ring-focus antenna subreflector is completed.
2. the processing method of a kind of ring-focus antenna minor face rotary press modelling according to claim 1, it is characterised in that：In S2 steps
In rapid, the preferential edge to sheet metal carries out flange before subreflector panel is prepared, after being finished to sheet metal flange
It is prepared by the spinning for carrying out subreflector panel again.
3. the processing method of a kind of ring-focus antenna minor face rotary press modelling according to claim 1, it is characterised in that：In S2 steps
In rapid, the flared end of described frustum is opening, and the necking end of described frustum forms a platform.
4. the processing method of a kind of ring-focus antenna minor face rotary press modelling according to claim 3, it is characterised in that：In S2 steps
Subreflector plate is provided with through hole after making and finishing in the center of subreflector plate in rapid, at subreflector face point bottom in S3 steps
Portion is provided with screw, and screw rod is fitted with the screw, and in S5 steps, before foaming, the screw rod of subreflector face point passes through pair
The screw being provided with Reflector Panel, it is gluing finish after on screw rod fitting nut to fasten subreflector plate and subreflector face
Point.
5. the processing method of a kind of ring-focus antenna minor face rotary press modelling according to claim 1, it is characterised in that：Described
Sheet metal in S2 steps is aluminum alloy plate materials.
6. the processing method of a kind of ring-focus antenna minor face rotary press modelling according to claim 1, it is characterised in that：In S7 steps
In rapid, bonding is bonded crosswise reinforcement, summit and the subreflector of crosswise reinforcement after finishing at the spinning minor face back side
Inwall is fixedly connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286457.7A CN106887713B (en) | 2017-04-27 | 2017-04-27 | A kind of processing method of ring-focus antenna minor face rotary press modelling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286457.7A CN106887713B (en) | 2017-04-27 | 2017-04-27 | A kind of processing method of ring-focus antenna minor face rotary press modelling |
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| Publication Number | Publication Date |
|---|---|
| CN106887713A true CN106887713A (en) | 2017-06-23 |
| CN106887713B CN106887713B (en) | 2019-05-31 |
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| CN201710286457.7A Active CN106887713B (en) | 2017-04-27 | 2017-04-27 | A kind of processing method of ring-focus antenna minor face rotary press modelling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509399A (en) * | 2020-04-29 | 2020-08-07 | 中国电子科技集团公司第五十四研究所 | Method for manufacturing integral large-area subreflector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1014490A1 (en) * | 1998-12-14 | 2000-06-28 | Alcatel | Electromagnetic wave reflector for telecommunication antenna |
| CN1599137A (en) * | 2004-09-24 | 2005-03-23 | 中国电子科技集团公司第五十四研究所 | Method for manufacturing subpanel of light wide band antenna |
| EP2808943A1 (en) * | 2013-05-31 | 2014-12-03 | Thales | Method for producing an antenna reflector with formed surface, reflector with formed surface obtained by said method and antenna comprising such a reflector |
-
2017
- 2017-04-27 CN CN201710286457.7A patent/CN106887713B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1014490A1 (en) * | 1998-12-14 | 2000-06-28 | Alcatel | Electromagnetic wave reflector for telecommunication antenna |
| CN1599137A (en) * | 2004-09-24 | 2005-03-23 | 中国电子科技集团公司第五十四研究所 | Method for manufacturing subpanel of light wide band antenna |
| EP2808943A1 (en) * | 2013-05-31 | 2014-12-03 | Thales | Method for producing an antenna reflector with formed surface, reflector with formed surface obtained by said method and antenna comprising such a reflector |
Non-Patent Citations (2)
| Title |
|---|
| SANDIP SANKAR ROY ETC.: "Design of Double Layers Dichroic Subreflector for S and X Band Cassegrain Antenna", 《2016 IEEE INDIAN ANTENNA WEEK》 * |
| 宁晓磊 等: "一种新型车载碳纤维反射体研制", 《河北省科学院学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509399A (en) * | 2020-04-29 | 2020-08-07 | 中国电子科技集团公司第五十四研究所 | Method for manufacturing integral large-area subreflector |
| CN111509399B (en) * | 2020-04-29 | 2021-06-04 | 中国电子科技集团公司第五十四研究所 | Method for manufacturing integral large-area subreflector |
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| Publication number | Publication date |
|---|---|
| CN106887713B (en) | 2019-05-31 |
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