CN114205729A - Processing technology of terahertz frequency band feed source loudspeaker - Google Patents
Processing technology of terahertz frequency band feed source loudspeaker Download PDFInfo
- Publication number
- CN114205729A CN114205729A CN202111555445.2A CN202111555445A CN114205729A CN 114205729 A CN114205729 A CN 114205729A CN 202111555445 A CN202111555445 A CN 202111555445A CN 114205729 A CN114205729 A CN 114205729A
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- Prior art keywords
- electroforming
- corrugated groove
- corrugated
- frequency band
- aluminum core
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 238000005323 electroforming Methods 0.000 claims abstract description 49
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000005476 soldering Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 7
- 238000003672 processing method Methods 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract 2
- 238000003754 machining Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 229910000679 solder Inorganic materials 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005868 electrolysis reaction Methods 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000000227 grinding Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
Abstract
The invention discloses a processing technology of a terahertz frequency band feed source loudspeaker, which comprises the following processing steps: s1, preparation: the whole workpiece is split into a corrugated slot tooth waveguide cavity and a square-round conversion waveguide cavity which form two parts, and then the two parts can be formed by soldering; s2, cutting: converting the wave guide cavity into a wave groove and an electroformed aluminum core; s3, electroforming: and taking out the corrugated groove and the electroforming aluminum core, mounting screws on two ends of the corrugated groove and fixing the corrugated groove and the electroforming aluminum core on an electroforming tool. The invention realizes the processing and manufacturing of the loudspeaker by adopting the processing method of electroforming and soldering, wherein the basic principle of electroforming is to obtain a required metal layer by an electrolysis mode so that metal is deposited on a casting mould to manufacture or copy a metal product, and soldering is to heat a weldment with a clean surface and solder to a certain temperature, so that the difficulty in processing is lower, the complexity in processing is reduced, and the loudspeaker has wide application prospect.
Description
Technical Field
The invention relates to the technical field of loudspeakers, in particular to a processing technology of a terahertz frequency band feed source loudspeaker.
Background
With the rapid development of communication, the microwave devices are updated and upgraded more and more quickly, the using amount of the microwave devices is larger and larger, the frequency requirement of a feed source horn on the microwave devices, which is the most core part for signal transmission, is higher and higher, and the representative feed source horn is the 664G terahertz feed source horn.
The processing technology of the terahertz feed source horn on the current market is often too complex, and in view of the characteristics of the terahertz feed source horn such as structural complexity, precision and weak rigidity, a large number of processing procedures are often needed to process and produce in the processing process, so that the difficulty of manufacturing parts of the terahertz feed source horn is higher.
Disclosure of Invention
The invention provides a processing technology of a terahertz frequency band feed source loudspeaker aiming at the defects in the background technology.
The invention aims to solve the phenomenon, adopts the following technical scheme, and provides a processing technology of a terahertz frequency band feed source loudspeaker, wherein the processing method comprises the following steps:
s1, splitting the whole workpiece into a corrugated slot tooth waveguide cavity and a square-round conversion waveguide cavity which are formed into two parts, and then soldering the two parts to form the whole workpiece;
s2, converting the wave guide cavity into wave groove and electroformed aluminum core;
s3, taking out the corrugated groove and the electroforming aluminum core, mounting screws at two ends and fixing the screws on the electroforming tool so as to prevent the part from deforming in the electroforming process;
s4, after electroforming is finished, stripping off protective glue, covering the corrugated groove and the electroforming aluminum core by the electroforming layer, clamping the phi 10 +/-0.01 position by four shafts, ejecting the thimble on the phi 4 +/-0.01 end surface, and dragging the meter to align;
s5, after the processing is finished, the corrugated groove and the electroformed aluminum core are dissolved away by acid-alkali liquor, and the corrugated groove tooth waveguide cavity is reserved;
s6, the wave guide cavity with the wave slot teeth is arranged inside the square-round conversion wave guide cavity, then the locking is carried out, and after the assembly is finished, the soft soldering is carried out according to the soldering area.
As a further preferred mode of the present invention, in step S1, the whole workpiece is split, and since the overall structure is composed of the corrugated slot, the circular waveguide section and the square-circle transition section, and the structural features and processing schemes of each section are different from each other, and the whole workpiece cannot be integrally processed, the whole workpiece can be split into the corrugated slot tooth waveguide cavity and the square-circle transition waveguide cavity by analysis to form two parts, and then the two parts can be formed by soldering and welding.
In a further preferred embodiment of the present invention, in step S2, the corrugated slot tooth waveguide cavity is converted into a corrugated slot, electroformed aluminum core, and processed by a processing method using micro-electro-chemical wire cutting.
As a further preferable mode of the present invention, in step S3, the corrugated groove and the electroformed aluminum core are taken out, both ends are screwed and fixed to the electroforming jig to prevent the deformation of the part during electroforming, and then the non-electroforming region is protected by applying glue for the reference of the subsequent machining, and then the electroforming process can be started.
In a further preferred embodiment of the present invention, in step S3, in the electroforming process, a low current rough casting is used, the surface of the rough casting is relatively smooth and flat, and after the electroforming layer exceeds the corrugated grooves and teeth, the current is adjusted to complete electroforming.
As a further preferable mode of the present invention, in step S4, during the alignment process, it is required to ensure that the concentricity of Φ 10 ± 0.01 and Φ 4 ± 0.01 is within 0.01, and then the clamping position is retained, and at the same time, the subsequent slow wire cutting removes the clamping position, and the dimensional tolerance of 30 ± 0.01 is ensured.
As a further preferable mode of the present invention, in step S6, the corrugated castellated waveguide cavity and the square-round transferred waveguide cavity are welded together during the welding process, so that the processing work is completed.
The invention realizes the processing and manufacturing of the horn by adopting the processing method of electroforming and soldering, wherein the basic principle of electroforming is to obtain a required metal layer by an electrolytic mode to ensure that metal is deposited on a casting mould to manufacture or copy metal products, the soldering is to heat a welding piece with a clean surface and a solder to a certain temperature to melt the solder, the solder is spread on a tightly attached connecting surface by capillary action or spread on the surface of a workpiece by wetting action, the solder is melted into liquid during soldering, a base material is kept in a solid state, the liquid solder wets, flows, fills and spreads in gaps of the base material or on the surface of the base material, interacts with the base material and is cooled and solidified to form a firm joint, so that the base materials are connected together, thereby realizing the welding of the metal, the cavity processing of the terahertz feed source is separated from the conventional processing technology mode, and the processing technology is different from the traditional terahertz feed source due to the structural complexity, The machining process has the advantages of being precise, weak in rigidity and the like, multiple machining procedures such as turning, grinding, planing, milling, clamping and the like are not needed during machining, machining difficulty is low, machining complexity is reduced, and the application prospect is wide.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a square-to-round transition waveguide cavity of the present invention;
FIG. 3 is a schematic view of an electroformed aluminum core structure of the present invention.
In the figure, a square-round conversion waveguide cavity-1, a corrugated groove tooth waveguide cavity-2 and an electroformed aluminum core-3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a processing technology of a terahertz frequency band feed source loudspeaker comprises the following steps:
s1, splitting the whole workpiece into a corrugated slot tooth waveguide cavity 2 and a square-round conversion waveguide cavity 1, and then forming the two parts by soldering;
s2, converting the corrugated flute teeth waveguide cavity 2 into a corrugated flute, electroformed aluminum core 3;
s3, taking out the corrugated groove and the electroforming aluminum core 3, installing screws at two ends and fixing the screws on the electroforming tool so as to prevent the part from deforming in the electroforming process;
s4, after electroforming is finished, stripping off protective glue, covering the corrugated groove and the electroformed aluminum core 3 by the electroforming layer, clamping the phi 10 +/-0.01 position by four shafts, pushing the thimble against the phi 4 +/-0.01 end face, and dragging the watch to align;
s5, after the processing is finished, the corrugated groove and the electroformed aluminum core 3 are dissolved away by acid-alkali liquor, and the corrugated groove tooth waveguide cavity 2 is reserved;
s6, the corrugated slot tooth waveguide cavity 2 is installed in the square-round conversion waveguide cavity 1, then locking is carried out, and soldering is carried out according to the welding area after assembly is finished.
In step S1, the whole workpiece is split, and since the overall structure is composed of the corrugated groove, the circular waveguide section and the square-circle conversion section, and the structural features and processing schemes of each section are different from each other, and the sections cannot be integrally processed, the whole workpiece can be split into the corrugated groove tooth waveguide cavity 2 and the square-circle conversion waveguide cavity 1 by analysis to form two parts, and then the two parts can be formed by soldering and welding.
In step S2, the corrugated groove tooth waveguide cavity 2 is converted into a corrugated groove, electroformed aluminum core 3, and processed by a processing method using micro electrolytic wire cutting.
In step S3, the corrugated groove and the electroformed aluminum core 3 are removed, screws are mounted on both ends and fixed on the electroforming jig, thereby preventing the deformation of the part during the electroforming process, and then the non-electroforming region is protected by applying glue for the subsequent machining reference, and then the electroforming process can be started.
In step S3, in the electroforming process, a low current rough casting is used, the surface of the rough casting is smooth and flat, and when the electroforming layer exceeds the corrugated groove and the teeth, the current is adjusted to completely electroform the electroforming layer.
In the step S4, in the alignment process, it is necessary to ensure that the concentricity of Φ 10 ± 0.01 and Φ 4 ± 0.01 is within 0.01, then the clamping position is retained, and at the same time, the clamping position is removed by subsequent slow-wire cutting, so as to ensure the dimensional tolerance of 30 ± 0.01.
In step S6, the corrugated slot tooth waveguide cavity 2 and the square-round transition waveguide cavity 1 are welded together during the welding process, so that the machining operation is completed.
In summary, the present invention realizes the manufacturing of the horn by using the processing method of electroforming and soldering, wherein the basic principle of electroforming is to obtain the required metal layer by electrolysis to make the metal deposit on the mold to manufacture or copy the metal product, and soldering is to heat the soldering piece with clean surface and the solder to a certain temperature, the solder is melted, the solder is spread on the connecting surface which is tightly attached by capillary action or spread on the surface of the work piece by wetting action, the solder is melted into liquid state while the base material is kept in solid state during soldering, the liquid solder wets, capillary flows, fills, spreads, interacts with the base material and is cooled and solidified to form a firm joint in the gap or on the surface of the base material, thereby connecting the base materials together to realize the welding of the metal, and the cavity processing is separated from the conventional processing technique, the machining process is different from the traditional terahertz feed source horn due to the characteristics of structural complexity, precision, weak rigidity and the like, multiple machining procedures such as turning, grinding, planing, milling, clamping and the like are not needed during machining, the machining difficulty is low during machining, the machining complexity is reduced, and the terahertz feed source horn has a wide application prospect.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A processing technology of a terahertz frequency band feed source loudspeaker is characterized by comprising the following processing steps:
s1, preparation: the whole workpiece is split into a corrugated slot tooth waveguide cavity (2) and a square-round conversion waveguide cavity (1) which form two parts, and then the two parts can be formed by soldering;
s2, cutting: converting the wave guide cavity (2) into a wave groove and an electroformed aluminum core (3);
s3, electroforming: taking out the corrugated groove and the electroforming aluminum core (3), mounting screws on two ends of the corrugated groove and fixing the corrugated groove and the electroforming aluminum core on an electroforming tool so as to prevent the part from deforming in the electroforming process;
s4, clamping: after electroforming is finished, stripping off protective glue, covering the corrugated groove and the electroformed aluminum core (3) by an electroforming layer, clamping the phi 10 +/-0.01 position by four shafts, ejecting the thimble on the phi 4 +/-0.01 end surface, and dragging the meter to align;
s5, dissolving: after the processing is finished, the corrugated groove and the electroforming aluminum core (3) are dissolved away by acid-alkali liquor, and the corrugated groove tooth waveguide cavity (2) is reserved;
s6, assembling: the wave guide cavity (2) with the corrugated groove teeth is arranged inside the square-round conversion wave guide cavity (1), then the locking is carried out, and after the assembly is finished, the soft soldering welding is carried out according to the welding area.
2. The machining process of the terahertz frequency band feed source horn as claimed in claim 1, wherein in step S1, the whole workpiece is split, and as the whole structure is composed of a corrugated groove, a circular waveguide section and a square-circle conversion section, the structural characteristics and the machining scheme of each section are different, and the whole machining cannot be performed, the whole workpiece can be split into the corrugated groove tooth waveguide cavity (2) and the square-circle conversion waveguide cavity (1) to form two parts through analysis, and then the two parts can be formed through soldering and welding.
3. The processing technology of the terahertz frequency band feed horn according to claim 1, wherein in step S2, the corrugated groove tooth waveguide cavity (2) is converted into a corrugated groove and an electroformed aluminum core (3), and the processing method of micro-electro-chemical wire cutting is adopted for processing.
4. The machining process of the terahertz frequency band feed horn as claimed in claim 1, wherein in step S3, the corrugated groove and the electroformed aluminum core (3) are taken out, screws are mounted on two ends of the corrugated groove and fixed on an electroforming tool so as to prevent a part from being deformed in the electroforming process, then the non-electroforming region is protected by gluing and used as a reference for subsequent machining, and then electroforming machining can be started.
5. The processing technology of the terahertz frequency band feed horn as claimed in claim 1, wherein in step S3, in the electroforming process, a small current is used for rough casting, the surface of the terahertz frequency band feed horn is relatively smooth and flat, and when an electroforming layer exceeds a corrugated groove and a corrugated tooth, the current is adjusted to enable the terahertz frequency band feed horn to be completely electroformed.
6. The processing technology of the terahertz frequency band feed horn as claimed in claim 1, wherein in the step S4, in the alignment process, the concentricity of Φ 10 ± 0.01 and Φ 4 ± 0.01 needs to be ensured within 0.01, then the clamping position is retained, and meanwhile, the clamping position is removed by subsequent slow wire cutting, so that the dimensional tolerance of 30 ± 0.01 is ensured.
7. The machining process of the terahertz frequency band feed source horn as claimed in claim 1, wherein in step S6, the corrugated grooved-tooth waveguide cavity (2) and the square-circle conversion waveguide cavity (1) are welded together in the welding process, so that the machining work can be completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111555445.2A CN114205729B (en) | 2021-12-17 | 2021-12-17 | Processing technology of terahertz frequency band feed source loudspeaker |
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| CN202111555445.2A CN114205729B (en) | 2021-12-17 | 2021-12-17 | Processing technology of terahertz frequency band feed source loudspeaker |
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| CN114205729B CN114205729B (en) | 2023-10-27 |
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Cited By (2)
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| CN115971929A (en) * | 2023-03-17 | 2023-04-18 | 西安瑞霖电子科技股份有限公司 | Tool clamp for manufacturing feed horn, feed horn and manufacturing method of feed horn |
| CN116852054A (en) * | 2023-08-31 | 2023-10-10 | 河南工学院 | Terahertz conical corrugated horn layered casting and milling integrated manufacturing method |
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| CN115971929A (en) * | 2023-03-17 | 2023-04-18 | 西安瑞霖电子科技股份有限公司 | Tool clamp for manufacturing feed horn, feed horn and manufacturing method of feed horn |
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| CN114205729B (en) | 2023-10-27 |
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Denomination of invention: Processing technology of a terahertz frequency band feed horn Granted publication date: 20231027 Pledgee: China Postal Savings Bank Co.,Ltd. Nanjing Branch Pledgor: NANJING CHIYUN TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2024980011479 |