CN105855700B - Travelling-wave tubes welds the welding protection fixture of antenna - Google Patents
Travelling-wave tubes welds the welding protection fixture of antenna Download PDFInfo
- Publication number
- CN105855700B CN105855700B CN201610413317.7A CN201610413317A CN105855700B CN 105855700 B CN105855700 B CN 105855700B CN 201610413317 A CN201610413317 A CN 201610413317A CN 105855700 B CN105855700 B CN 105855700B
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- China
- Prior art keywords
- travelling
- protective cover
- welding
- wave tubes
- helical line
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/127—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an enclosure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention discloses the welding protection fixture that a kind of travelling-wave tubes welds antenna; the generally " C " shaped cylindrical cavity of welding protection fixture; the welding protection fixture includes base and protective cover; the base and protective cover are respectively arranged at the two ends of welding protection fixture; the base and protective cover side be provided with axially through soldering opening; the present invention can be prevented effectively from molten drop and be attached on helix internal diameter, prevent from blocking the circulation of electronics note, travelling-wave tubes is focused on variation；Avoid molten drop from coming off and cause travelling-wave tubes to be struck sparks, vibrate, product failure；The power output at initial stage for avoiding the loss from increasing and occurring lowers, and the later stage causes pernicious accumulation, temperature to raise and burn travelling-wave tubes with heat consumption aggregation.Solve delivery of energy device region laser welding in travelling-wave tubes and produce the pollution problem that metallic vapour pollution and metal liquid molten drop are sputtered, can apply to the miniature welding that diameter of bore depth ratio is up to more than 10 times of the mini-TWT for welding narrow space.
Description
Technical field
The present invention relates to a kind of fixture, specifically a kind of travelling-wave tubes welds the fixture of antenna.
Background technology
The critical component delivery of energy component exported as energy input in travelling-wave tubes, it, which is welded, generally uses laser by travelling-wave tubes
The inner wire of middle spiral end and delivery of energy component（It is referred to as antenna）Welded with platinum band transition or filling flux.But
To the travelling-wave tubes of small volume, particularly Ku, Ka wave band travelling-wave tubes, because travelling-wave tubes welding day wire bonding locus is very thin
Micro-, diameter of bore is tiny to arrive 0.7mm, and bonding area is 0.1 mm2, and bore depth is up to 10 mm, aperture is deep than high, belongs to allusion quotation
The miniature welding of type, its welding quality directly affects the reliability and electric parameter of travelling-wave tubes.Current travelling-wave tubes welding day wire bonding
Connect technique to be protected using argon gas, projected by jet hole with certain injection power and reach solder side, disperse metal steam
Vapour and metal drop sputtering, but to some travelling-wave tubes this at deep up to more than 10 times of the ratio in aperture, be accurately to be welded
Connect, the location of workpiece need to be adjusted, but now, the jet hole of protective gas, which is difficult to be adjusted in synchronism, arrives better position, protective gas effect
It is unsatisfactory in the effect of weld, remain more metallic vapour in welding and pollute blessing bar, and also metal liquid
Molten drop sputtering molten drop is attached on helix internal diameter, generally rejects the metal drop of attachment on this sampling technology with pin is shelved, then
Wipe metallic vapour with tiny silk, but such a mode be difficult it is thorough remove clean, and fragile fine structure at this, stay
Lower hidden danger, following problem can be caused by specifically summarizing existing welding：
1）Laser welding is also easy to produce metallic vapour pollution and the sputtering of metal liquid molten drop, and molten drop is attached to helix internal diameter
On, the circulation of obstruction electronics note makes travelling-wave tubes focus on variation；
2）In use, molten drop is come off, and travelling-wave tubes will be caused to strike sparks, vibration, product failure；
3）Metallic vapour pollutes, and is attached on the blessing bar of near zone on delivery of energy component, area loss increase, initial stage
There is power output to lower, with heat consumption aggregation and pernicious accumulation, temperature rise is burnt travelling-wave tubes when serious and failed.
Therefore the welding region is protected, it is to avoid metallic vapour pollutes and metal liquid molten drop sputtering residual is to be badly in need of solving
Key issue.
The content of the invention
The present invention is in view of the above-mentioned problems, weld the welding protection fixture of antenna there is provided a kind of travelling-wave tubes, and the welding is protected
Retaining clip has generally " C " shaped cylindrical cavity, and the welding protection fixture includes base and protective cover, the base and protective cover
Be respectively arranged at the two ends of welding protection fixture, base and the protective cover side be provided with axially through soldering opening, the bottom
The external diameter of seat is less than 0.1~0.06mm of travelling tube helical line internal diameter, and the external diameter of the protective cover is more than travelling tube helical line external diameter
0.02~0.04mm, the internal diameter of protective cover is less than 0.3~0.26mm of travelling tube helical line internal diameter；The height of protective cover is delivery of energy group
Part centre-to-centre spacing supporting rod proximal height adds 0.45~0.55mm, and the distance of the soldering opening both sides of protective cover compares travelling tube helical line
The adjacent cusps of adjacent two loadings bar are apart from small 0.03~0.07mm；The substructure height is 2 times of pitch of travelling tube helical line.
It is preferred that, the external diameter of the base is less than travelling tube helical line internal diameter 0.1mm, and the external diameter of protective cover is more than travelling-wave tubes
Helix external diameter 0.02mm, the internal diameter of protective cover is less than travelling tube helical line internal diameter 0.3mm, and the height of protective cover is delivery of energy component
Centre-to-centre spacing supporting rod proximal height adds 0.5mm, and the height of welding protection fixture is 2 times of pitch of travelling tube helical line and delivery of energy group
Part centre-to-centre spacing supporting rod proximal height sum adds 0.5mm, and the distance of the soldering opening both sides of protective cover compares travelling tube helical line
The adjacent cusps of adjacent two loadings bar are apart from small 0.05mm.
The welding protection fixture of described travelling-wave tubes welding antenna is made up of Mo, because molybdenum has fusing point high,
Consistency is high, the characteristics of machining property is preferable, it is easy to which Precision Machining is applied to laser high-temperature soldering bar into tiny fixture
Part.
The application method of the welding protection fixture of the travelling-wave tubes welding antenna is as follows：
1）Before laser welding, the welding protection cover that travelling-wave tubes welds antenna is loaded into travelling-wave tubes with the tiny tweezers in tip
Delivery of energy component laser welding region, notes that the big one end of protective cover external diameter is upward.
2）Finely-tuned protection cover position, antenna place to be welded is faced by the soldering opening of protective cover, the soldering opening of protective cover
Two side shelters from the loading bar near day wire bonding place to be welded.
3）Notice that protective gas should not blow protective cover skew during welding, keep the soldering opening of protective cover to face antenna and treat
Weld, is again taken out protective cover with the tiny tweezers in tip after welding.
Compared with prior art, the invention has the advantages that：
It is prevented effectively from molten drop to be attached on helix internal diameter, prevents from blocking the circulation of electronics note, travelling-wave tubes is focused on variation；
Avoid molten drop from coming off and cause travelling-wave tubes to be struck sparks, vibrate, product failure；More apparent mitigation metallic vapour is attached on delivery of energy component
On the blessing bar of near zone, it is to avoid the power output at initial stage that the area loss increases and occurred lowers, and the later stage is poly- with heat consumption
Collection causes pernicious accumulation, temperature to raise and burn travelling-wave tubes.Solve delivery of energy device region laser welding in travelling-wave tubes and produce gold
Belong to the pollution problem of steam contamination and the sputtering of metal liquid molten drop, can apply to diameter of bore depth ratio and be up to more than 10 times
Weld the miniature welding of the mini-TWT of narrow space.
Brief description of the drawings
Fig. 1 travelling-wave tubes of the present invention welds the welding protection fixture sectional view of antenna；
Fig. 2 travelling-wave tubes of the present invention welds the welding protection fixture top view of antenna；
Schematic diagram when the welding protection fixture of Fig. 3 travelling-wave tubes welding antennas of the present invention is used；
Fig. 4 travelling-wave tubes delivery of energy component centre-to-centre spacing supporting rod proximal height schematic diagrames of the present invention；
The distance between two tips schematic diagram of adjacent two loadings bar at Fig. 5 travelling-wave tubes delivery of energy components of the present invention.
In above-mentioned accompanying drawing, the corresponding component names of reference are as follows：
1st, travelling-wave tubes welds the welding protection fixture of antenna；2nd, protective cover；3rd, base；4th, soldering opening；5th, delivery of energy component；6、
Helix；7th, supporting rod；8th, bar is loaded；H, delivery of energy component centre-to-centre spacing supporting rod proximal height；I, travelling tube helical line adjacent two
Load the adjacent cusps distance of bar.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include but is not limited to
The following example.
Embodiment one
Travelling-wave tubes described in embodiment one welds the welding protection fixture of antenna, and the travelling-wave tubes is Ku wave band traveling waves
Pipe, the generally " C " shaped cylindrical cavity of welding protection fixture, the welding protection fixture includes base and protective cover, institute
State base and protective cover be respectively arranged at the two ends of welding protection fixture, base and the protective cover side be provided with axially through
Soldering opening, the external diameter of the base is less than the external diameter of base in travelling tube helical line internal diameter 0.1mm, the present embodiment for φ 1.3mm,
Travelling tube helical line internal diameter is φ 1.4mm；The external diameter of protective cover is more than travelling tube helical line external diameter 0.02mm, the internal diameter of protective cover
Less than travelling tube helical line internal diameter 0.3mm, the height of protective cover adds for delivery of energy component centre-to-centre spacing supporting rod proximal height
0.5mm, the height of welding protection fixture for 2 times of pitch of travelling tube helical line and delivery of energy component centre-to-centre spacing supporting rod proximal height it
It is less than the adjacent cusps of the adjacent two loadings bar of travelling tube helical line with the distance along with 0.5mm, the soldering opening both sides of protective cover
The 0.05mm of distance；The external diameter of protective cover is φ 1.7mm in the present embodiment, and the internal diameter of protective cover is φ 1.1mm, the height of protective cover
1.5mm is spent, substructure height is 1.24mm（Travelling tube helical line pitch is 0.62mm, delivery of energy component centre-to-centre spacing folder in the present embodiment
Bar proximal height is held for 1mm）, the distance of the soldering opening both sides of protective cover is 1mm in the present embodiment（The two of the present embodiment travelling-wave tubes
It is 1.05mm to load bar distance between two tips）.
The application method of the welding protection fixture of the travelling-wave tubes welding antenna is as follows：
1）Before laser welding, the welding protection fixture that travelling-wave tubes welds antenna is loaded into traveling wave with the tiny tweezers in tip
Pipe delivery of energy component laser welding region, notes that one end of protective cover is upward.
2）Finely-tuned protection cover position, by the soldering opening of protective cover against antenna place to be welded, the two of the soldering opening of protective cover
Side wall shelters from the loading bar near day wire bonding place to be welded.
3）Notice that protective gas should not blow protective cover skew during welding, keep the soldering opening of protective cover to face antenna and treat
Weld, is again taken out protective cover with the tiny tweezers in tip after welding.
Compared with prior art, the present embodiment has the advantages that：
It is prevented effectively from molten drop to be attached on helix internal diameter, prevents from blocking the circulation of electronics note, travelling-wave tubes is focused on variation；
Avoid molten drop from coming off and cause travelling-wave tubes to be struck sparks, vibrate, product failure；More apparent mitigation metallic vapour is attached on delivery of energy component
On the blessing bar of near zone, it is to avoid the power output at initial stage that the area loss increases and occurred lowers, and the later stage is poly- with heat consumption
Collection causes pernicious accumulation, temperature to raise and burn travelling-wave tubes.Solve delivery of energy device region laser welding in travelling-wave tubes and produce gold
Belong to the pollution problem of steam contamination and the sputtering of metal liquid molten drop, can apply to diameter of bore depth ratio and be up to more than 10 times
Weld the miniature welding of the mini-TWT of narrow space.
Above-described embodiment is only the preferred embodiments of the present invention, not limiting the scope of the invention, as long as using
The design principle of this reality invention, and the change for carrying out non-creativeness work on this basis and making, all should belong to the present invention
Protection domain within.
Claims (3)
1. a kind of travelling-wave tubes welds the welding protection fixture of antenna, it is characterised in that the welding protection fixture is generally " C " shaped
Cylindrical cavity, the welding protection fixture includes base and protective cover, and the base and protective cover are respectively arranged at welding and protected
The two ends of retaining clip tool, the base and protective cover side be provided with axially through soldering opening, the external diameter of the base is less than traveling wave
Pipe 0.1~0.06mm of helix internal diameter, the external diameter of the protective cover is more than travelling tube helical line 0.02~0.04mm of external diameter, protection
The internal diameter of cover is less than 0.3~0.26mm of travelling tube helical line internal diameter；The height of protective cover is that delivery of energy component centre-to-centre spacing supporting rod is near
End height adds 0.45~0.55mm, the phase of the distance two loadings bar more adjacent than travelling tube helical line of the soldering opening both sides of protective cover
The adjacent small 0.03~0.07mm of distance between two tips；The substructure height is 2 times of pitch of travelling tube helical line.
2. a kind of travelling-wave tubes as claimed in claim 1 welds the welding protection fixture of antenna, it is characterised in that the base
External diameter is less than travelling tube helical line internal diameter 0.1mm, and the external diameter of protective cover is more than travelling tube helical line external diameter 0.02mm, protective cover
Internal diameter is less than travelling tube helical line internal diameter 0.3mm, and the height of protective cover adds for delivery of energy component centre-to-centre spacing supporting rod proximal height
0.5mm, the height of welding protection fixture for 2 times of pitch of travelling tube helical line and delivery of energy component centre-to-centre spacing supporting rod proximal height it
With along with 0.5mm, the adjacent cusps of the distance two loadings bar more adjacent than travelling tube helical line of the soldering opening both sides of protective cover away from
From small 0.05mm.
3. a kind of travelling-wave tubes as claimed in claim 1 or 2 welds the welding protection fixture of antenna, it is characterised in that the weldering
Shield jig is connect to be made up of Mo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413317.7A CN105855700B (en) | 2016-06-14 | 2016-06-14 | Travelling-wave tubes welds the welding protection fixture of antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413317.7A CN105855700B (en) | 2016-06-14 | 2016-06-14 | Travelling-wave tubes welds the welding protection fixture of antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105855700A CN105855700A (en) | 2016-08-17 |
| CN105855700B true CN105855700B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610413317.7A Active CN105855700B (en) | 2016-06-14 | 2016-06-14 | Travelling-wave tubes welds the welding protection fixture of antenna |
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| Country | Link |
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| CN (1) | CN105855700B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422074B (en) * | 2018-05-11 | 2023-11-10 | 天津航天机电设备研究所 | Spiral weld electron beam welding fixture and heat dissipation tool |
| US11879734B2 (en) | 2022-05-25 | 2024-01-23 | Caterpillar Inc. | Laser projection hardware positional device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62143343A (en) * | 1985-12-18 | 1987-06-26 | Toshiba Corp | Traveling-wave tube and manufacture thereof |
| JP5140868B2 (en) * | 2007-07-06 | 2013-02-13 | 株式会社ネットコムセック | Traveling wave tube |
| CN202356812U (en) * | 2011-09-29 | 2012-08-01 | 安徽华东光电技术研究所 | Traveling wave tube collector welding clamp |
| CN205684902U (en) * | 2016-06-14 | 2016-11-16 | 成都国光电气股份有限公司 | The welding protection fixture of travelling-wave tube welding antenna |
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2016
- 2016-06-14 CN CN201610413317.7A patent/CN105855700B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105855700A (en) | 2016-08-17 |
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