CN109175695A - The method for laser welding of optical cable feed-through - Google Patents
The method for laser welding of optical cable feed-through Download PDFInfo
- Publication number
- CN109175695A CN109175695A CN201811237703.0A CN201811237703A CN109175695A CN 109175695 A CN109175695 A CN 109175695A CN 201811237703 A CN201811237703 A CN 201811237703A CN 109175695 A CN109175695 A CN 109175695A
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- Prior art keywords
- feed
- conduction band
- laser welding
- welding
- optical cable
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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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of method for laser welding of optical cable feed-through, comprising the following steps: (1) obtains feed conduction band of same size；(2) to feed conduction band bottom surface welding edge grinder buffing；(3) feed conduction band is bent into pipe；(4) laser welding is carried out to joint close, welding is passed through inert gas to weld simultaneously, prevents copper pipe from aoxidizing for completely cutting off air.The method for laser welding of optical cable feed-through of the invention, existing argon-are welding technology is replaced by way of a kind of laser welding, conduction band bending will be fed by, which first passing through, becomes the copper pipe of cladding cable core, then it is welded in corresponding position by laser, extend the equipment continuous available machine time, increase production capacity, while reducing the loss and waste of material；And relationship can also be contacted by adjust output power and copper pipe forward speed, weld seam welding effect can be controlled, easily meet production requirement, improve the quality of production.
Description
Technical field
The present invention relates to the laser weldings of the method for laser welding of feed-through more particularly to submarine optical fiber cable feed-through
Method.
Background technique
Submarine optical fiber cable, which communicates, has more than 100 years history, and anglo Shandong-Telegraph Of France starts between Great Britain and France within 1850
It has been laid with the first in the world submarine cable, Morse telegraphy password can only be sent.Into the nineties, submarine optical fiber cable is and satellite
Communication becomes the main means of contemporary transcontinental communication.Start within 1989 to the end of the year 1998, it is Chinese successively to have taken part in 18 states
The construction and investment of border submarine optical fiber cable.The open-minded of station is logged in Asia-Europe submarine optical fiber cable Shanghai within 2000, by group of China Telecom
The Asia-Europe Fiber Optical Submarine Cable System that company participates in construction, connects Asia-Europe 33, seabed countries and regions, just by the construction more than 3 years
Formula is open-minded.Building up for it indicates that China's international communication is horizontal and upgrades to a new height.Submarine optical fiber cable is international logical as the present age
The important means of letter assumes responsibility for 90% international telecommunication service, is the main carriers of global information communication.It is also China's optical fiber enterprise
The new high profit growth point of industry.
Fiber Optical Submarine Cable System is mainly used for connecting optical cable and Internet, it is divided into shore facilities and the big portion of underwater equipment two
Point.The communication services such as voice, image, data are packaged and transmit by shore facilities.Underwater equipment is responsible for the processing of signal of communication, is sent
And reception.Underwater equipment is divided into submarine optical fiber cable, repeater and " branch units " three parts: submarine optical fiber cable is most important one
It is the part of most fragile.
Submarine optical fiber cable works in sufficiently complex and severe marine environment, and there are many factor for influencing submarine optical fiber cable safety,
The safety of the most important safety for having transmission line and transmission information can by feeding conduction band periodic monitoring submarine optical fiber cable state
Carry out the security monitoring to the link.Submarine optical fiber cable use environment is special, and the digital repeater function of submarine optical fiber cable is more, than sea
The electricity consumption of the analog repeater of bottom cable is several times big, and power reguirements have very high reliability, cannot interrupt.Therefore having
The area that shark haunts, will also be plus steel band around double-baging and again plus layer of polyethylene oversheath in the outside of submarine optical fiber cable.I.e.
Make to be such strict protection, still found that the polyethylene insulator of deep-sea cable was stung by shark at the end of the eighties and badly cause to supply
The example of electric fault, the maintenance cost that such as breaks down is very high, and carrying out fault location by feed conduction band can reduce the fault point
The time is searched, maintenance cost is greatly reduced.
Copper pipe in submarine optical fiber cable is important feed conduction band, plays as the attachment transmission energy that connect with submarine optical fiber cable
Effect, and in ocean, it in order to ensure normal work of the optical fiber in submarine optical fiber cable, needs to be protected well, such one
Come, copper pipe then needs as closed copper pipe.Currently used production technology are as follows: closed using flat copper strips by molding die longitudinal wrap cable core
It is welded after seam, using Tig Welding mode.
Copper strips longitudinal wrap argon gas tungsten-arc welding connects, such welding manner comparative maturity, but there are own shortcomings:
(1), in order to avoid the appearance of quality problems, burning of tungsten needle to a certain extent when, need according to actual use situation
It is replaced, increases the time that equipment downtime waits；
(2), feed conduction band is directly bent into pipe with aircraft mould or limit mould in the prior art, after being unfavorable for control bending
The joint close position of conduction band is fed, and directly bends and easily feed conduction band or mold is damaged；
(3), influence of the argon tungsten-arc welding vulnerable to copper strip surface clean-up performance need to carry out necessary cleaning by bit copper band, increase
Add a procedure, new pollution may be introduced, increases the welding process factors of instability；
(4), it needs to be passed through argon gas always in welding process, will increase corresponding production cost；
Summary of the invention
The technical problem to be solved by the present invention is to overcome feed conduction band existing in background technique argon gas to protect tungsten electrode arc
Welding there are disadvantages, a kind of method with laser welding optical cable feed-through is provided.
In order to solve the above-mentioned technical problems, the present invention provides a kind of method for laser welding of optical cable feed-through, packets
It includes following steps: (1) obtaining feed conduction band of same size；(2) to feed conduction band bottom surface welding edge grinder buffing；(3)
Feed conduction band is bent into pipe: making to feed conduction band from axial centre position into multiple idler wheel molding dies, along feed conduction band operation
The forming width in direction, multiple idler wheel molding dies gradually becomes smaller, and feed conduction band is bent into the feed with both sides joint close and is led
Pipe；(4) laser welding directly is carried out to commissure, welding is passed through inert gas to welding region simultaneously, anti-for completely cutting off air
Only copper pipe aoxidizes.
It further comprise being obtained using cutter of same size in step (1) in a preferred embodiment of the present invention
Conduction band is fed, feedforward conductance band is cut and passes through prelocalization device, the fixed feed conduction band positions of prelocalization device make to feed conduction band water
It is flat to enter cutter.
In a preferred embodiment of the present invention, further comprise in step (2), with grinding wheel sander to feed conduction band into
Row polishing, the grinding wheel sander includes fast pulley group and grinding wheel group, and the feed conduction band is from fast pulley group and grinding wheel group
Between pass through, fast pulley group is pressed in conduction band is fed in grinding wheel group, and the grinding wheel group includes that feed two of conduction band two sides is arranged in
Grinding wheel.
It further comprise that step (2) carries out in the first closed case in a preferred embodiment of the present invention, described first
Closed case includes the first air inlet and the first gas outlet, is inserted into compressed air hose in air inlet, to grinder buffing at be passed through sky
Gas, the copper powder that cleaning polishing generates install strainer and the first air extractor in gas outlet.
It further comprise in step (3), before idler wheel molding die, to feed in a preferred embodiment of the present invention
Conduction band is positioned, and feed conduction band passes through post-positioning device, and feed conduction band is made to pass through the multiple of axial symmetry setting from the central position
Idler wheel molding die, the idler wheel molding die forming width gradually become smaller, and the slope of the feed conduction band of bending just becomes larger,
Feed conduction band is gradually bent into pipe, after being bent into feed conduction band pipe, by identical or be greater than as feed conduction band pipe diameter size
The sizing die of 0.1mm further compresses feed conduction band pipe.
It further comprise feed conduction band edge docking after being bent into pipe in step (3) in a preferred embodiment of the present invention
The gap spacing for locating to be formed is between 0~0.2mm.
It further comprise that step (4) carries out in the second closed case in a preferred embodiment of the present invention, described second
Two layers of protective cover of closed case outer cladding, the gold with Thermal conductivity that the protective cover is coated by surface black material
Category is made；The second air inlet and the second gas outlet is arranged in second closed case, leads in second air inlet to weld
Enter inert gas, the inert gas is nitrogen；Second gas outlet is connected to the second air extractor, for taking laser welding away
The exhaust gas and residue that copper pipe generates.
It further comprise using the seam welding of laser beam emitting head pairing, institute in step (4) in a preferred embodiment of the present invention
It states laser beam emitting head to be fixed on the bracket that one can be adjusted to three vertical dimensions directions, for adjusting laser relative to copper
The focal position of pipe weld seam；The laser beam emitting head bonding power 8400 ± 100W, 1.8~2.2mm of defocusing amount.
It further comprise being also equipped on the laser beam emitting head with filter glass in a preferred embodiment of the present invention
Camera.
In a preferred embodiment of the present invention, further comprise the feed conduction band be copper strips or aluminium strip.
The method for laser welding of optical cable feed-through of the invention, has the advantages that
(1) existing argon-are welding technology is replaced by way of a kind of laser welding, when extension equipment is continuously switched on
Between, increase production capacity, while reducing the loss and waste of material.
(2) feed conduction band becomes the feed of cladding cable core with the gradually smaller idler wheel molding die bending of multiple forming widths
Conduit avoids the damage directly using molding die to feed conduction band, the joint close position of the feed conduit after ensure that bending.
(3) relationship is contacted by adjust output power and copper pipe forward speed, weld seam welding effect, Yi Man can be controlled
Sufficient production requirement, improves the quality of production.
Detailed description of the invention
Fig. 1 is the method for laser welding block diagram of optical cable feed-through of the invention.
Fig. 2 is the method for laser welding equipment flowsheet of optical cable feed-through of the invention.
Fig. 3 is the grinding wheel sander structural schematic diagram of the method for laser welding of optical cable feed-through of the invention.
Fig. 4 is the top view of the idler wheel molding die of the method for laser welding of optical cable feed-through of the invention.
Wherein: 1- prelocalization device, 2- cutter, the closed closed case of 3- first, the first air inlet of 31-, 32- first
Gas outlet, 4- fast pulley group, 5- grinding wheel group, 6- positioning device, the second closed case of 7-, 71 second air inlets, the second outlet of 72-
Mouthful, 8- idler wheel molding die, 9- sizing die, 10 laser beam emitting heads, 11- camera, 12- copper strips, 13- cable core, 14- copper pipe.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Embodiment
As shown in Figs. 1-2, present embodiment discloses a kind of method for laser welding of optical cable feed-through, the present embodiment masters
It is used in submarine optical fiber cable, preferably feed conduction band is copper strips 12, aluminium band is unable to, because electrochemistry to occur anti-for aluminium and seawater
It answers and generates hydrogen, hydrogen molecule can be diffused into the glass material of optical fiber, so that the loss of optical fiber is become larger, the copper strips in the present embodiment
For the copper belt after 0.65mm, comprising the following steps: (1) obtain feed conduction band of same size；(2) to the weldering of feed conduction band bottom surface
Edge fit edge grinder buffing；(3) feed conduction band is bent into pipe: forming feed conduction band from axial centre position into multiple idler wheels
Mold, along feed conduction band traffic direction, the forming width of multiple idler wheel molding dies gradually becomes smaller, and feed conduction band is bent into tool
There is the feed conduit of both sides joint close；(4) laser welding is carried out to both sides commissure, welding is passed through indifferent gas to weld simultaneously
Body prevents copper pipe from aoxidizing for completely cutting off air.
In step (1), copper strips 12 of same size is obtained using cutter 2, copper strips 12 is filled by prelocalization before cutting
1 is set, the position of 1 fixed copper band 12 of prelocalization device makes copper strips 12 horizontally enter into cutter 2.
The choosing method of copper strips width in step (1): the width of copper strips 12 determines by the diameter of sizing die 9, copper strips 12
After being bent into copper pipe 14, it can be coated on 13 outside of cable core, the smallest width of copper strips 12 should are as follows: L:(cable core diameter-copper strips is thick
Degree) * π, in order to make the 14 edge close apposition of copper pipe after bending, the width for cutting copper strips 12 should be greater than L width about 0.3-
0.5mm。
Smooth 12 surface of copper strips is unfavorable for being welded for laser, so needing to polish to 12 edge of copper strips before welding
To increase the roughness of 12 exterior slots of copper pipe, reduces the energy of laser welding reflection, improve the utilization rate of laser energy, step
(2) it in, is polished with grinding wheel sander copper strips 12, as shown in Figure 3: the grinding wheel sander includes fast pulley group 4
With grinding wheel group 5, the copper strips 12 passes through among fast pulley group 4 and grinding wheel group 5, and copper strips 12 is pressed on by the fast pulley group 4
In grinding wheel group 5, the grinding wheel group 5 include be arranged in feed conduction band two sides two grinding wheels, to 12 bottom surface both side edge of copper strips into
Row polishing；In polishing, in order to guarantee that grinding effect is identical, setting 12 forward speed of copper strips is V0, the linear velocity at grinding wheel edge
For V1, should make the sum of two velocity magnitudes (absolute value) of V0 and V1 in production is definite value, can ensure in this way copper strips 12 with
When friction speed is advanced, the effect of polishing is identical.
The copper powder that polishing copper strips generates in order to prevent expands match in air, and to air pollution, step (2) is in the first closed box
It is carried out in body 3, first closed case includes the first air inlet 31 and the first gas outlet 32, is inserted into pressure in the first air inlet 31
Contracting air hose, to grinder buffing at be passed through air, the copper powder that cleaning polishing generates installs strainer and first in the first gas outlet 32
Air extractor.
As shown in Figure 4: copper strips and cable core enter through positioning device 6,6 fixed copper band of positioning device together after edge polishing
12 enter idler wheel molding die 8 from middle position, are consistent the profile angle of 12 two sides of copper strips and stress, Duo Gekuan
The axisymmetric setting of idler wheel molding die 8 of gradual change is spent in 12 two sides of copper pipe, 8 width of idler wheel molding die gradually becomes smaller,
The slope of the copper pipe 12 of bending just becomes larger, and copper strips 12 is gradually bent into copper pipe 14, after bending copper pipe 14, process and copper pipe
The identical or sizing die 9 greater than 0.1mm of diameter further compresses copper pipe 14, after compression at 12 edge docking of copper strips
The gap spacing of formation is between 0~0.2mm.
Since the radiation of laser has very big harmfulness, step (4) carries out in the second closed case 7, and described second is close
Closed box body 7 outer cladding, two layers of protective cover, the gold with Thermal conductivity that the protective cover is coated by surface black material
Category is made；The second air inlet 71 and the second gas outlet 72 is arranged in second closed case 7, and second air inlet 71 is interior to weldering
The place of connecing is passed through inert gas, and the inert gas is nitrogen, and nitrogen flow is set as 8L/min, and second gas outlet 72 is connected to
Second air extractor, for taking the exhaust gas and residue of the generation of laser welding copper pipe away.
Being welded with laser beam emitting head 10 to both sides commissure in step (4), the laser beam emitting head 10 is fixed on
On one bracket that can be adjusted to three vertical dimensions directions, for adjusting focal position of the laser relative to copper pipe weld seam；
The startup power 3550W of the laser emitting head 10, nominally 10 8400 ± 100W of bonding power of laser beam emitting head, from
Coke 1.8~2.2mm of amount can be adapted to the copper pipe welding of friction speed by adjusting bonding power and defocusing amount, can also mention
The quality of height welding, improves the final product quality of product.
Preferably, it is also equipped with the camera 11 with filter glass on laser beam emitting head used, can implement to see
The welding situation of copper pipe is examined, and so that the welding effect of copper pipe is reached requirement by adjusting bonding power and defocus rate.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of method for laser welding of optical cable feed-through, which comprises the following steps: (1) obtain width phase
Same feed conduction band；(2) to feed conduction band bottom surface welding edge grinder buffing；(3) feed conduction band is bent into pipe: leading feed
Band from axial centre position enter multiple idler wheel molding dies, along feed conduction band traffic direction, multiple idler wheel molding dies at
Type width gradually becomes smaller, and feed conduction band is bent into the feed conduit with both sides joint close；(4) laser is carried out to both sides commissure
Welding, welding are passed through inert gas to weld simultaneously, prevent copper pipe from aoxidizing for completely cutting off air.
2. the method for laser welding of optical cable feed-through as described in claim 1, which is characterized in that in step (1), use
Cutter obtains feed conduction band of same size, cuts feedforward conductance band and passes through prelocalization device, the fixed feedback of prelocalization device
Electric conduction band positions make feed conduction band level enter cutter.
3. the method for laser welding of optical cable feed-through as described in claim 1, which is characterized in that in step (2), use sand
Wheel grinding device polishes to feed conduction band, and the grinding wheel sander includes fast pulley group and grinding wheel group, and the feed is led
Band passes through among fast pulley group and grinding wheel group, and fast pulley group is pressed in conduction band is fed in grinding wheel group, and the grinding wheel group includes setting
Set two grinding wheels in feed conduction band two sides.
4. the method for laser welding of optical cable feed-through as claimed in claim 3, which is characterized in that step (2) is first
It is carried out in closed case, first closed case includes the first air inlet and the first gas outlet, and insertion compression is empty in air inlet
Tracheae, to grinder buffing at be passed through air, the copper powder that cleaning polishing generates installs strainer and the first air extractor in gas outlet.
5. the method for laser welding of optical cable feed-through as described in claim 1, which is characterized in that in step (3), pass through
Before idler wheel molding die, feed conduction band is positioned, feed conduction band passes through post-positioning device, makes to feed conduction band from the central position
Across multiple idler wheel molding dies of axial symmetry setting, the idler wheel molding die forming width is gradually become smaller, the feed of bending
The slope of conduction band just becomes larger, gradually will feed conduction band be bent into pipe, be bent into feed conduction band pipe after, by with feed conduction band
Pipe diameter size is identical or sizing die greater than 0.1mm, further compresses to feed conduction band pipe.
6. the method for laser welding of optical cable feed-through as described in claim 1, which is characterized in that bending in step (3)
Cheng Guanhou, feed conduction band edge synthesize the gap of 0~0.2mm wide, and end face is concordant.
7. the method for laser welding of optical cable feed-through as described in claim 1, which is characterized in that step (4) is second
It is carried out in closed case, two layers of protective cover of the second closed case outer cladding, the protective cover is applied by surface with black material
The metal with Thermal conductivity covered is made；The second air inlet and the second gas outlet, institute is arranged in second closed case
It states in the second air inlet and is passed through inert gas to weld, the inert gas is nitrogen；The second gas outlet connection second
Air extractor, for taking the exhaust gas and residue of the generation of laser welding copper pipe away.
8. the method for laser welding of optical cable feed-through as described in claim 1, which is characterized in that in step (4), use
Laser beam emitting head welds both sides commissure, and the laser beam emitting head is fixed on one can be to three vertical dimensions directions
On the bracket of adjusting, for adjusting focal position of the laser relative to copper pipe weld seam；The laser beam emitting head bonding power 8400
± 100W, 1.8~2.2mm of defocusing amount.
9. the method for laser welding of optical cable feed-through as claimed in claim 8, which is characterized in that the laser beam emitting head
On be also equipped with the camera with filter glass.
10. the method for laser welding of optical cable feed-through as described in claim 1, which is characterized in that the feed conduction band
For copper strips or aluminium strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237703.0A CN109175695A (en) | 2018-10-23 | 2018-10-23 | The method for laser welding of optical cable feed-through |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811237703.0A CN109175695A (en) | 2018-10-23 | 2018-10-23 | The method for laser welding of optical cable feed-through |
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ID=64942907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811237703.0A Pending CN109175695A (en) | 2018-10-23 | 2018-10-23 | The method for laser welding of optical cable feed-through |
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| CN204087932U (en) * | 2014-06-27 | 2015-01-07 | 成都联士电工有限公司 | A kind of Through ground wire copper alloy sheath production equipment |
| CN104464979A (en) * | 2014-09-10 | 2015-03-25 | 南通昱品通信科技有限公司 | Copper clad aluminum extending and pulling production line and production process |
| CN206339721U (en) * | 2016-12-26 | 2017-07-18 | 四川江虹线缆制造有限公司 | A kind of aluminium strip wraps up production line with optical cable |
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2018
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1159235A (en) * | 1997-08-26 | 1999-03-02 | Fujikura Ltd | Manufacture of eccentric type copper coated steel trolley line |
| DE19828954C2 (en) * | 1998-06-29 | 2001-11-15 | Siemens Ag | Process for producing a band-shaped multicore superconductor with high-T¶c¶ superconductor material and device for carrying out the process |
| DE19859452C1 (en) * | 1998-12-22 | 2000-02-10 | Siemens Ag | Stripform high critical temperature (Tc) superconductor manufacturing method |
| US20020040890A1 (en) * | 2000-08-31 | 2002-04-11 | Nexans | Process for producing a metal tube of copper |
| CN103021556A (en) * | 2011-09-27 | 2013-04-03 | 吴江市中信科技有限公司 | Coating machine |
| CN102412029A (en) * | 2011-12-28 | 2012-04-11 | 浙江天杰实业有限公司 | Processing process of semi-steel cable outer conductor |
| CN204087932U (en) * | 2014-06-27 | 2015-01-07 | 成都联士电工有限公司 | A kind of Through ground wire copper alloy sheath production equipment |
| CN104464979A (en) * | 2014-09-10 | 2015-03-25 | 南通昱品通信科技有限公司 | Copper clad aluminum extending and pulling production line and production process |
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Application publication date: 20190111 |
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