CN110137655A - The method of manufacturing technology of special-shaped double ridge sealing coaxial waveguide conversions - Google Patents
The method of manufacturing technology of special-shaped double ridge sealing coaxial waveguide conversions Download PDFInfo
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- CN110137655A CN110137655A CN201910494154.3A CN201910494154A CN110137655A CN 110137655 A CN110137655 A CN 110137655A CN 201910494154 A CN201910494154 A CN 201910494154A CN 110137655 A CN110137655 A CN 110137655A
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- ridge
- coaxial waveguide
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- capping
- conversions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
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- Waveguide Aerials (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to coaxial waveguide technical fields, disclose the method for manufacturing technology of special-shaped double ridge sealing coaxial waveguide conversions.It include: that coaxial waveguide is converted progress process structure reconstruct to be split as ridge chamber and ridge capping；Melting welding groove is provided with seam crossing；By fixed structure design in ridge Cavity surface, approaching face is designed on ridge capping；Machining coaxial waveguide converts interior shape, is polished；Cleaning and drying ridge capping and ridge chamber；Welding overturning tooling and coaxial waveguide conversion are subjected to bit combination assembly, realize that coaxial waveguide converts being symmetrically welded for each weld seam by overturning tooling；Welding residual stress is removed using heat aging；Coaxial waveguide is converted and carries out chemical surface treatment.The above method realizes the technical requirements such as leakproofness, dimensional accuracy and the surface roughness of special-shaped double ridge coaxial waveguide conversions, and product quality consistency is high and stablizes, and production efficiency and manufacturing cost are with the obvious advantage.
Description
Technical field
The present invention relates to the manufacturing process sides of the double ridge sealing coaxial waveguide conversions of coaxial waveguide technical field, especially abnormity
Method.
Background technique
The double crestal surfaces abnormity and exponentially curved surface of coaxial waveguide conversion, Conventional processing methods are that coaxial waveguide is converted one point
It is two, machining, is then spirally connected with fastener combination respectively.In order to meet leakproofness, in the glue encapsulating of its seam crossing,
Sealant can be influenced by the thermoae cold equal external adverse circumstances of ultraviolet light and height for a long time, and glue meeting aging and attachment surface aliquation cause
Outdoor sealing influences the normal reliability service life period of equipment using failure.Also there is selection will be same in Conventional processing methods
Axis waveguide transitions carry out integral precision casting forming, but due to crestal surface abnormity, ridge spacing dimension is too small, monoblock cast forming accuracy
It is difficult to realize, product quality consistency is poor, and qualification rate is only less than 50%, and the production cycle is longer, higher cost.
Summary of the invention
The technical problems to be solved by the present invention are: conventionally produced, the size essence of the double ridge coaxial waveguide conversions of abnormity
Design electrical performance demands are not achieved in degree and surface smoothness, and it is close under adverse circumstances outdoors for a long time to be unable to satisfy product
Seal requirement and user's requirement stable to efficient, good and cheap, quality.The present invention provides special-shaped double ridge sealings are coaxial
It is efficiently low to be able to achieve the biggish double ridge abnormity coaxial waveguides conversion for having seal request of quantity for the method for manufacturing technology of waveguide transitions
Cost production, greatly improves product qualification rate.
The technical solution adopted by the invention is as follows: the method for manufacturing technology of the double ridge sealing coaxial waveguide conversions of abnormity, comprising:
Step 1, coaxial waveguide is converted into progress process structure reconstruct and is split as ridge chamber and ridge capping；
Step 2, melting welding groove is provided with seam crossing；
Step 3, fixed structure is designed in ridge Cavity surface, approaching face designs on ridge capping；
Step 4, machining coaxial waveguide converts interior shape, is polished；
Step 5, clean and dry ridge capping and ridge chamber；
Step 6, welding overturning tooling and coaxial waveguide conversion are subjected to bit combination assembly, are realized by overturning tooling same
Each weld seam of axis waveguide transitions is symmetrically welded；
Step 7, welding residual stress is removed using heat aging；
Step 8, coaxial waveguide is converted and carries out chemical surface treatment.
Further, the step 1 includes following procedure: step 11, being set with quartile in two ridge spacing and turns coaxial waveguide
It changes and splits into ridge chamber and ridge capping；Step 12, ridge capping and ridge chamber are reconstructed into stepped construction；Step 13, ridge chamber small end is reconstructed into method
Blue structure；Step 14, ridge capping and ridge chamber mating surface open up location structure.
Further, in the step 2, respectively fall 45 ° of grooves for seam two sides, and depth is ridge capping thickness half.
Further, in the step 3, fixed structure takes locating pin structure.
Further, the step 4 includes following procedure: step 41, successively processing ridge chamber, shape in ridge capping；Step 42, will
Ridge capping and ridge chamber are combined shape in processing shape and small end；Step 43, pairing label is beaten；Step 44, ridge capping and ridge chamber are dismantled,
Ridge Machining of Curved Surface lines is gently thrown with emery cloth；Step 45, it removes burr and seamed edge is blunt.
Further, the step 6 includes following procedure:
Step 61, it combines erection welding as initial position from coaxial waveguide conversion small end center and overturns tooling, first periphery
Weld seam is symmetrically spaced spot welding, soldering and sealing small end straight section；Step 62, big end side surface, 90 ° of tooling rotations of welding overturning are extended to from small end
Turn, soldering and sealing side；Step 63, the rotation of welding overturning tooling, coaxial waveguide convert each weld seam and alternately realize Symmetrical Continuous weld side
Face.
Further, in the step 7, welding residual stress is removed in chamber type electric resistance furnace, welding is dismantled after cooling and turns over
Rotating tooling.
Compared with prior art, having the beneficial effect that by turning to special-shaped double ridge coaxial waveguides by adopting the above technical scheme
The reconstruct of swap-in row process structure and high-precision processing, assembled with high precision, the method for manufacturing technology of high energy beam welding, realize abnormity
The technical requirements such as leakproofness, dimensional accuracy and the surface roughness of double ridge coaxial waveguide conversions, product quality consistency are high and steady
Fixed, production efficiency and manufacturing cost are with the obvious advantage, and manufacturing cost only has the 60% of Conventional processing methods, double ridge abnormity coaxial waveguides
Conversion electric property does not have to debugging energy 100% and meets design parameter index request.
Detailed description of the invention
The method of manufacturing technology flow diagram of the double ridge sealing coaxial waveguide conversions of Fig. 1 present invention abnormity.
Specific embodiment
The present invention is described further with reference to the accompanying drawing.
Double ridge coaxial waveguide conversions are the converters of double ridged waveguide and coaxial radio frequency cable microwave signal.Special-shaped double ridge sealings
Coaxial waveguide transition profile is encircled into horn-like, sheet thicknesses 1mm by four sheet metals；Loudspeaker inner cavity ridge containing symmetric double, it is interior
The double crestal surfaces of chamber small end section are at " Z " font, and the double crestal surface shapes of big end section are smoothness index curve, and the wide size of ridge is not identical, width by
Loudspeaker inner cavity small end gradually extends to big end to broaden.Ridge spacing minimum dimension is less than 0.2mm, tolerance ± 0.05mm.Product
Open air is in use, requiring energy anti-vibration and having sealing requirements.The present embodiment is directed to the coaxial waveguide conversion products, invention
A kind of high reliablity and the very low process of manufacturing cost, the height for being successfully realized special-shaped double ridge coaxial waveguide conversion products can
The manufacture required by property, resistance to leakproofness and high dimensional accuracy.
The method of manufacturing technology of coaxial waveguide conversion is sealed for the double ridges of the present embodiment abnormity as shown in Figure 1.
Ridge chamber and ridge capping are split as 1. coaxial waveguide is converted and carries out process structure reconstruct；
(a) it is set with quartile in two ridge spacing and coaxial waveguide conversion is split into ridge chamber and ridge capping；(b) ridge capping and ridge chamber reconstruct
At stepped construction；(c) ridge chamber small end is reconstructed into flange arrangement；(d) ridge capping and ridge chamber mating surface open up location structure.
2. melting welding groove is provided with seam crossing；Respectively fall 45 ° of grooves for seam two sides, and depth is ridge capping thickness half.
3. high accuracy positioning tool structure designs: by fixed structure design in ridge Cavity surface, approaching face is designed on ridge capping；Its
Middle fixed structure takes locating pin structure.
4. high-speed cutting processing coaxial waveguide converts interior shape, polished；
(a) ridge chamber, shape in ridge capping are successively processed；(b) ridge capping and ridge chamber are combined shape in processing shape and small end；
(c) pairing label is beaten；(d) ridge capping and ridge chamber are dismantled, gently throws ridge Machining of Curved Surface lines, roughness Ra 1.6 with 280-300 emery cloth；
(e) it removes burr and seamed edge is blunt.
5. cleaning and drying ridge capping and ridge chamber；
(a) ridge capping and ridge chamber are cleaned up in temperature 60 C weak caustic solution.(b) it is cleaned up in temperature 60 C clear water
Ridge capping and ridge chamber remained on surface spot.(c) ridge capping is put into clean drying oven with ridge chamber and is dried.
6. welding overturning tooling and coaxial waveguide conversion are carried out high-precision fixed bit combination assembly, realized by overturning tooling
Coaxial waveguide converts being symmetrically welded for each weld seam；
Step 61, it combines erection welding as initial position from coaxial waveguide conversion small end center and overturns tooling, first periphery
Weld seam is symmetrically spaced spot welding, soldering and sealing small end straight section；Step 62, big end side surface, 90 ° of tooling rotations of welding overturning are extended to from small end
Turn, soldering and sealing side；Step 63, the rotation of welding overturning tooling, coaxial waveguide convert each weld seam and alternately realize Symmetrical Continuous weld side
Face, and welding deformation should be can control in the process.
7. removing welding residual stress using heat aging；
Welding residual stress can be removed in chamber type electric resistance furnace, guarantee the temperature difference ± 5 DEG C in furnace, to dismantle welding after cooling and turn over
Rotating tooling.
8. a pair coaxial waveguide conversion carries out chemical surface treatment.
In above-described embodiment, when being made using CNC machine center with three axes, revolving speed is not less than 8000r/min, guarantees Ra1.6,
Precision controlling chooses progressive cutting way in ± 0.01mm, and ridge curved surface stays polished amount 0.02mm.
In above-described embodiment, positioning accuracy is designed by 0.02mm.
In above-described embodiment, using 2 stainless steel positioning pin of Φ, static pressure assembly.
In above-described embodiment, workpiece is assembled and is fixed, with the AL4043 of diameter of phi 0.8mm by design and processing positioning tool
Welding wire, in single-point power 4KW, out under light frequency 8Hz, with high energy beam welding seam, bonding speed 9mm/s, molten wide 1mm, fusion penetration
Not less than 0.5mm.
On the basis of above-described embodiment, simple airtight fixture is designed, seals workpiece, positive pressure is inflated 0.02Mpa, successfully realized
Submersible seal test.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.If this
Field technical staff is altered or modified not departing from the unsubstantiality that spirit of the invention is done, should belong to power of the present invention
The claimed range of benefit.
Claims (7)
1. the method for manufacturing technology of special-shaped double ridge sealing coaxial waveguide conversions characterized by comprising
Step 1, coaxial waveguide is converted into progress process structure reconstruct and is split as ridge chamber and ridge capping；
Step 2, melting welding groove is provided with seam crossing；
Step 3, fixed structure is designed in ridge Cavity surface, approaching face designs on ridge capping；
Step 4, machining coaxial waveguide converts interior shape, is polished；
Step 5, clean and dry ridge capping and ridge chamber；
Step 6, welding overturning tooling and coaxial waveguide conversion are subjected to bit combination assembly, on-axis wave is realized by overturning tooling
It leads and converts being symmetrically welded for each weld seam；
Step 7, welding residual stress is removed using heat aging；
Step 8, coaxial waveguide is converted and carries out chemical surface treatment.
2. the method for manufacturing technology of the double ridge sealing coaxial waveguide conversions of abnormity as described in claim 1, which is characterized in that described
Step 1 includes following procedure: step 11, being set with quartile in two ridge spacing coaxial waveguide conversion splitting into ridge chamber and ridge capping；Step
Rapid 12, ridge capping and ridge chamber are reconstructed into stepped construction；Step 13, ridge chamber small end is reconstructed into flange arrangement；Step 14, ridge capping and ridge
Chamber mating surface opens up location structure.
3. the method for manufacturing technology of the double ridge sealing coaxial waveguide conversions of abnormity as claimed in claim 2, which is characterized in that described
In step 2, respectively fall 45 ° of grooves for seam two sides, and depth is ridge capping thickness half.
4. the method for manufacturing technology of the double ridge sealing coaxial waveguide conversions of abnormity as claimed in claim 3, which is characterized in that described
In step 3, fixed structure takes locating pin structure.
5. the method for manufacturing technology of the double ridge sealing coaxial waveguide conversions of abnormity as described in claim 1, which is characterized in that described
Step 4 includes following procedure: step 41, successively processing ridge chamber, shape in ridge capping；Step 42, ridge capping and ridge chamber are combined and are added
Shape in work shape and small end；Step 43, pairing label is beaten；Step 44, ridge capping and ridge chamber are dismantled, ridge Machining of Curved Surface is gently thrown with emery cloth
Lines；Step 45, it removes burr and seamed edge is blunt.
6. the method for manufacturing technology of the double ridge sealing coaxial waveguide conversions of abnormity as described in claim 1, which is characterized in that described
Step 6 includes following procedure:
Step 61, it combines erection welding as initial position from coaxial waveguide conversion small end center and overturns tooling, first circumferential weld
Symmetrical interval spot welding, soldering and sealing small end straight section；Step 62, big end side surface, 90 ° of tooling rotations of welding overturning, envelope are extended to from small end
Weld side；Step 63, welding overturning tooling rotation, coaxial waveguide convert each weld seam and alternately realize that Symmetrical Continuous welds side.
7. the method for manufacturing technology of the double ridge sealing coaxial waveguide conversions of abnormity as described in claim 1, which is characterized in that described
In step 7, welding residual stress is removed in chamber type electric resistance furnace, and welding overturning tooling is dismantled after cooling.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110544830A (en) * | 2019-08-22 | 2019-12-06 | 中国电子科技集团公司第二十九研究所 | Manufacturing process method of double-ridge sealed horn antenna |
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