CN101920400B - Gas protection device for laser-arc hybrid welding and laser-arc hybrid welding machine - Google Patents
Gas protection device for laser-arc hybrid welding and laser-arc hybrid welding machine Download PDFInfo
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- CN101920400B CN101920400B CN 200910210194 CN200910210194A CN101920400B CN 101920400 B CN101920400 B CN 101920400B CN 200910210194 CN200910210194 CN 200910210194 CN 200910210194 A CN200910210194 A CN 200910210194A CN 101920400 B CN101920400 B CN 101920400B
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Abstract
The invention discloses a gas protection device for laser-arc hybrid welding and a laser-arc hybrid welding machine with the gas protection device. The gas protection device for the laser-arc hybrid welding comprises a protective gas chamber which is provided with a connecting end used for connecting a laser head and an opening end that is opposite to the connecting end; an air injection device which is arranged in the protective gas chamber and is used for injecting protective gas towards the opening end in at least two directions; and an installation part for an arc welding device which is arranged on a side wall of the protective gas chamber and is used for installing the arc welding device. The laser-arc hybrid welding machine comprises the laser head, the arc welding device and the gas protection device for the laser-arc hybrid welding, the connecting end of the protective gas chamber of the gas protection device is connected under the laser head, and the arc welding device is arranged in the installation part for the arc welding device. The gas protection device for the laser-arc hybrid welding and the laser-arc hybrid welding machine have simple structure and can effectively avoid shielding laser as a plasma drifts.
Description
Technical field
The relevant a kind of laser Combined Welding equipment of the present invention particularly relates to a kind of gas protection device for laser-arc hybrid welding and with the laser-arc hybrid welding machine of this gas shield device.
Background technology
Laser weld as a kind of precision, efficiently, high energy beam welding method fast, obtained using more and more widely at aerospace field.But conventional laser weld also exists some problems and defective, and that, assembly precision low such as utilization ratio of laser energy requires is high, apparatus expensive etc.In order to address these problems, proposed several new laser welding technologies in prior art: a kind of is multifocal some laser welding technology, and this welding method can improve utilization ratio of laser energy, improves the stability of welding process, improve weldquality, can reduce the requirement to assembly precision simultaneously.Another kind is compound welding technology, namely adopts laser and other thermals source jointly as welding heat source, and this technique can effectively increase fusion penetration, raises the efficiency, and can also improve to a great extent joint performance, reduces equipment cost.The welding of laser-arc composite heat power supply is that physical property and the distinct two kinds of thermals source of Energy Transfer mechanism are combined with each other, and acts on simultaneously same Working position.The compound of laser and electric arc makes two kinds of thermals source both give full play to advantage separately, mutually made up again the other side's deficiency, thereby formed a kind of thermal source of new high efficiency.
In above-mentioned hybrid Laser-Arc Welding, the effect of protective gas is all most important, in high power CO
2In laser weld, the laser beam irradiation of high power density is when the test specimen surface, and base metals was heated, melts, evaporates and ionize within the extremely short time.Be comprised of metal ion, protection gas ion, steam and electronics etc. the surface that at first plasma is formed at test specimen, high plasma vapour compression shock molten metal material forms aperture, finally forms penetration fustion welding.If power density continues to increase, plasma will leave surface of the work, form plasma shield, will hinder the carrying out of welding.Therefore must utilize protective gas to control the drift of plasma, realize simultaneously the protection of butt welded seam.In TIG or MIG welding, protective gas directly affects the arc welding characteristic, determines welding procedure stability, appearance of weld and joint performance.Obviously, in laser-arc hybrid welding in industry technique, protective gas has important impact and important effect equally on technical process and appearance of weld, and its research has important theory and engineering significance.Therefore; when hybrid Laser-Arc Welding Integrated design; the design of gas shield structure also will meet certain requirements; at present existingly use technology that protective gas protects welding normally in the plumb joint side, the protective gas conduit to be set; be used for to the weld seam injecting protective gas; the protection weld seam is avoided contacting with air; thereby guarantee the seam crossing welding performance; but this kind conduit is for forming certain thickness protect gas reservoir in the commissure; the protective gas flow velocity can not be too high, thereby can not effectively suppress drift and the consequent laser shielding action of plasma.Therefore to improve on the basis of welding quality effectively controlling gas direction and flow velocity, designed rational gas shield structure.
In addition, for such as Laser-TIG Hybrid Welding as a kind of Novel welding method that combines two kinds of welding heat sources, their independent roles of welding parameter when both having needed to consider to(for) its control procedure also needs to consider that their parameters after compound control as the distance of electric arc and laser action point etc. simultaneously.Therefore must consider respectively the location parameter adjusting of thermal source alone and the relative position parameter regulatory function between two thermals source in Laser-TIG Hybrid Welding head design process.
In the TIG welding process, the size of arc length is one of main factor that affects appearance of weld and arc energy density.In order to obtain uniform high-quality welding point, arc length must remain unchanged in whole welding process, yet the out-of-flatness due to surface of the work, the impact of the factors such as the scaling loss of tungsten electrode, arc length can change, therefore in the welding gun design process, requirement can realize the position adjustment of electric arc arc length, has real-time independent electric arc arc length positions and adjusts function.In addition, all there is a heat source spacings D who obtains maximum fusion penetration in laser compound welding.This just shows that the position parameter that best embodies this thermal source synergy is exactly the distance of electric arc and laser action point.Therefore in order to obtain uniform fusion penetration and good shaping surface, it is relatively constant that D must keep.But because the surface height of workpiece changes and the scaling loss of tungsten electrode must cause D to follow changing, need to carry out real-time heat source spacings adjustment in welding process for this reason.Therefore in the welding gun design process, requirement can realize the adjustment of D, adjusts function to satisfy two real-time thermal source relative positions.
Summary of the invention
In view of this, it is a kind of simple in structure that the technical problem to be solved in the present invention is to provide, and can effectively prevent from shielding because of plasma drift the gas protection device for laser-arc hybrid welding of laser, and with the electric lonely hybrid welding machine of the laser of this gas shield device.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of gas protection device for laser-arc hybrid welding, it comprises:
The protection air chamber has for the link and the openend relative with this link that connect laser head;
Air jet system is loaded in described protection air chamber and is used for from least two directions towards described openend injecting protective gas;
The arc-welding set installation portion is positioned at described protection gas chamber sidewall, is used for installing arc-welding set.
In one embodiment of the invention, described air jet system is at least two nozzles, and each nozzle evenly distributes along described protection air chamber inwall.
Preferably; each nozzle is connected to the lower connecting hole that is positioned at described protection gas chamber sidewall and is communicated with the protective gas feedway by connector; described connector has for the upper link that is connected with above-mentioned protection air chamber inwall and the lower link that is connected being connected with described nozzle; upward have an angle between link and lower link, make nozzle point to described openend.
Preferably, the cylindricality Water conservancy diversion core is housed in described nozzle, is arranged with at least two guiding gutters on this Water conservancy diversion core, each guiding gutter is along the surperficial screw arrangement of described cylindricality Water conservancy diversion core.
Preferably, described nozzle is four.
In another embodiment of the present invention; described air jet system is jet ring; this jet ring is arranged on the protection air chamber near the position of link; edge at this jet ring is provided with air admission hole; inside is provided with ring cavity; this air admission hole is communicated with the protective gas feedway by the upper connecting hole that is positioned at the protection gas chamber sidewall, is arranged with at least two puff prots that are communicated with above-mentioned ring cavity at the lower surface of described jet ring, and each puff prot points to respectively described openend.
Preferably, described air admission hole is along the tangential setting of described jet ring.
Preferably, described puff prot is arranged ringwise.
In the selectable embodiment of the present invention; two the first slide plates that described arc-welding set installation portion comprises along the first Long Circle hole that described protection gas chamber sidewall axially arranges, be arranged in parallel in this Long Circle hole two sides and the first slide block between described the first slide plate; relatively have the first slotted eye on described the first slide plate; described the first slide block is bolted between described the first slotted eye; be provided with on described the first slide block be used to the first installing hole that described arc-welding set is installed, in these the first installing hole two sides and bottom, micrometer adjusting screw be housed.
Selectable, the arc-welding set that is arranged in described the first installing hole is the TIG welding gun.
Preferably; described arc-welding set installation portion also is included in the second Long Circle hole of described protection gas chamber sidewall and described the first Long Circle hole relative position setting, two the second slide plates that two sides in this second Long Circle hole be arranged in parallel and the second slide block between described the second slide plate; relatively have the second slotted eye on described the second slide plate; described the second slide block is bolted between described the second slotted eye; be provided with on described the second slide block for the second installing hole that wire feeder is installed, in this second installing hole side and bottom, micrometer adjusting screw be housed.
Laser-arc hybrid welding machine of the present invention; comprise laser head and arc-welding set; it also comprises above-mentioned gas protection device for laser-arc hybrid welding; the protection air chamber link of this gas shield device is connected in below described laser head, and described arc-welding set is installed on described arc-welding set installation portion.
Described arc-welding set is the TIG welder, comprises TIG welding gun and wire feeder, and described TIG welding gun is installed on the first slide block of described arc-welding set installation portion, and described wire feeder is installed on the second slide block of described arc-welding set installation portion.
compared with prior art, the present invention is owing to being provided with the gathering of protecting air chamber to be convenient to protective gas, make weld seam protection regional large, can effectively protect the forming quality of wide weld seam, air jet system is from least two direction injecting protective gas, forming the multi-angle injection can make plasma different directions drift about to the four sides, effectively prevent the generation of plasma shield, simultaneously because spray air flow is large, the gas of large flow also can effectively be controlled isoionic drift, thereby can effectively avoid the screen effect to welding laser that causes because of plasma drift, therefore adopt the laser-arc hybrid welding machine of gas shield device of the present invention to go for the more laser weld of high power conditions, thereby can obtain higher speed of welding.
In addition, because the present invention adopts two air jet systems that above direction is jet, so splashing of producing is difficult for being blown into nozzle interior, the cleaning of nozzle also is convenient in the obstruction of effectively having protected nozzle to avoid splashing when welding.
In addition; gas shield device of the present invention also has good autgmentability; experiment shows; the mist of argon gas and nitrogen can more effective protection weld seam; under the argon gas and the protection of nitrogen mixture body of two above direction ejections; can play a very good protection under high-speed welding condition under high-power lasing condition, and designs of nozzles is four generations that can realize symmetrical mist.Two nozzles of homonymy pass into respectively argon gas and nitrogen, can change the kind of protective gas in the welding slab.Can carry out laser weld under high-power condition.
And in TIG arc-welding set of the present invention, owing to being provided with wire feeder, can filler wire, the welding wire of filling has the following advantages: improve the metallurgical behavior of deposited metal, can obtain needed Weld Performance and microscopic structure; Improve the surface forming of weld seam, avoid the generation of the defectives such as face of weld depression, undercut, improve the quality level of welding point; Reduce the front assembly precision requirement of product structure welding, adapt to the needs that Product industrialization is produced.
Described arc-welding set installation portion adopts slide plate and slide block structure, by the adjusting slider position realize the position adjustments of arc-welding set, the micrometer adjusting screw that arranges by the slide block side can realize the fine setting to the arc-welding set angle, thereby obtain between electric arc and laser thermal source and the better distance between welding wire and thermal source, and can make up the variable in distance between the thermal source that electrode causes because of scaling loss.Adopt the laser-arc hybrid welding machine of gas shield device of the present invention can realize the integrally-built improvement of Laser-TIG Hybrid Welding, integrated and system optimization.
Gas shield device of the present invention also is applicable to the laser-MIG hybrid welding machine except being applicable to the laser-TIG hybrid welding machine.
Description of drawings
Fig. 1 is the Facad structure schematic diagram of laser-TIG hybrid welding machine of the present invention.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the front view of gas shield device in Fig. 1.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the right view of protection air chamber in Fig. 5.
Fig. 9 is the left view of Fig. 8.
Figure 10 is the top view of Fig. 8.
Figure 11 is 8 B-B cutaway view.
Figure 12 is the structural representation of nozzle.
Figure 13 is jet structure of rings schematic diagram.
Figure 14 is the structural representation of the first slide block.
Figure 15 is the structural representation of the second slide block.
Figure 16 is the structural representation that connects the connector of nozzle.
In figure
100, laser head 110, upper connecting cylinder
120, translation stage 130, mounting plate
140, swing mechanism 141, stepper motor
142, eccentric block 143, push rod
150, turntable 160, bottom plate
170, reflection cavity 180, lifting tube
200, arc-welding set 210, TIG welding gun
220, wire feeder 300, gas shield device
310, protection air chamber 311, link
312, openend 313, upper connecting hole
314, lower connecting hole 315, the first Long Circle hole
316, the second Long Circle hole 317, screw
320, arc-welding set installation portion 321, the first slide plate
322, the first slide block 323, the first slotted eye
324, the first installing hole 325, micrometer adjusting screw hole
326, the second slide plate 327, the second slide block
328, the second slotted eye 329, the second installing hole
330, middle plate
340, air jet system 341, nozzle
3411, Water conservancy diversion core 3412, guiding gutter
342, connector 3421, upper link
3422, lower link 343, jet ring
3431, air admission hole 3432, ring cavity
3433, fumarole 3434, annular groove
400, bracing frame
The specific embodiment
Describe the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1～shown in Figure 4 is laser-TIG hybrid welding machine of the present invention, and wherein Fig. 1 is the Facad structure schematic diagram of laser-TIG hybrid welding machine of the present invention.Fig. 2 is the upward view of Fig. 1.Fig. 3 is the left view of Fig. 1.Fig. 4 is the A-A cutaway view of Fig. 3.
As Fig. 1～shown in Figure 4; this laser-arc hybrid welding machine; comprise laser head 100 and arc-welding set 200; it also comprises gas shield device 300; protection air chamber 310 links 311 of this gas shield device 300 are connected in described laser head 100 belows, and described arc-welding set 200 is installed on arc-welding set installation portion 320.Laser head 100 is connected to each other fixing with gas shield device 300 by bracing frame 400.
Described laser head comprises the parts such as upper connecting cylinder 110, translation stage 120, mounting plate 130, turntable 150, bottom plate 160, reflection cavity 170 and lifting tube 180 that set gradually from top to bottom, swing mechanism 140 is connected between mounting plate 130 and bottom plate 160, be used for to drive the up and down supporting plate, produce relative motion between making both.Described upper connecting cylinder 110 is used for being connected with laser generator, to receive high energy laser beam.Translation stage 120 be connected with upper connecting cylinder 110 and below be provided with guide rail for mounting plate 120 parallels.Described turntable 150 and reflection cavity 170 lay respectively at the above and below of bottom plate, when swing mechanism moves, the relative motion of up and down supporting plate is decomposed into the swing of rectilinear motion and the bottom plate 160 of mounting plate 130, when bottom plate 160 swings, driven rotary platform 150 and reflection cavity 170 rotate around lifting tube 180 axis, and make outgoing laser beam swing within the specific limits formation one laser beam with amplitude of fluctuation, and can increase the width in weld seam molten bath when welding, improve welding quality.
In the present embodiment, described swing mechanism 140 comprises stepper motor 141, eccentric block 142 and push rod 143, stepper motor 141 is arranged on mounting plate 130, eccentric block 142 is connected to step motor shaft and push rod 143, drive eccentric block 142 by stepper motor 141, and eccentric motion is converted to the relative motion of mounting plate and bottom plate.
Fig. 5～shown in Figure 7 is gas shield device 300 of the present invention, and wherein Fig. 5 is the front view of gas shield device in Fig. 1.Fig. 6 is the top view of Fig. 5.Fig. 7 is the left view of Fig. 6.
As Fig. 5～shown in Figure 7, gas shield device 300 of the present invention, it comprises: protection air chamber 310, air jet system 340 and arc-welding set installation portion 320.
Referring to Fig. 8～Figure 10, described protection air chamber 310 has for the link 311 and the openend 312 relative with this link 31 that connect laser head 100, and link is provided with screw 317; This protection air chamber is connected and is connected in by middle plate 330 lifting tube 180 belows of described laser head 100 by plate 330 in screw and.Concrete connected mode is that middle plate is connected in support frame as described above 400 1 ends, bracing frame 400 other ends are connected on the translation stage of laser head 100, the connecting hole of bracing frame 400 can be bar hole, and when above-mentioned lifting tube 180 lifting, bar hole can play the effect of fine setting.
Described air jet system 340 is loaded in described protection air chamber 310 and is used for from least two directions towards described openend 312 injecting protective gas.
Described arc-welding set installation portion 320 is positioned at described protection air chamber 310 sidewalls, is used for installing arc-welding set 200.
In the present embodiment, described air jet system 340 comprises four nozzles 341, and each nozzle 341 evenly distributes along described protection air chamber 310 inwalls.
Each nozzle 341 is connected to the lower connecting hole 314 that is positioned at described protection gas chamber sidewall and is communicated with protective gas feedway (figure slightly) by connector 342.Described connector 342 have for protection air chamber 310 the inwalls upper link 3421 that is connected and the lower link 3422 that is connected being connected with described nozzle, referring to Figure 16.Upward have an angle between link and lower link, make nozzle 341 point to described openings 312.
In described nozzle 341, cylindricality Water conservancy diversion core 3411 is housed, is arranged with at least two guiding gutters 3412 on this Water conservancy diversion core 3411, in the present embodiment, the guiding gutter number is three, and each guiding gutter 3412 is along the surperficial screw arrangement of described cylindricality Water conservancy diversion core 3411.Spiral helicine guiding gutter can make protective gas be the screw cylindrical ejection from nozzle; after the protective gas jetting nozzle due to puffing; form the protect gas reservoir of filled circles cone-shaped; can obtain thicker air-flow protection layer; the anti-external interference ability of shielding gas flow is strong; the protection effect stability is reliable, and a plurality of solid gas shield gas-bearing formation can effectively prevent plasma (orifice) gas volume expansion drift, thereby avoids the generation of Screen theory.
Described nozzle 341 also can be two above quantity.
In the present embodiment; described air jet system 340 also comprises jet ring 343; this jet ring 343 is arranged on protection air chamber 310 near the position of link 311; be provided with air admission hole 3431 at the edge of this jet ring 343; inside is provided with ring cavity 3432; this air admission hole is communicated with the protective gas feedway by the upper connecting hole 313 that is positioned at the protection gas chamber sidewall; described jet ring lower surface be arranged with 24 puff prots 3433; each puff prot points to respectively described openend 312; 24 puff prots are arranged to four annulars, and each ring comprises six fumaroles.Above-mentioned puff prot is to get final product more than two.
Described air admission hole 3431 is along the tangential setting of described jet ring 343.Air admission hole tangentially is provided with and is beneficial to the distribution of protective gas in jet ring, makes the whiff pressure of each fumarole balanced.
as Fig. 5～Fig. 7 and Fig. 8～shown in Figure 10, described arc-welding set installation portion 320 comprises the first Long Circle hole 315 that axially arranges along described protection gas chamber sidewall, two the first slide plates 321 that be arranged in parallel in this Long Circle hole two sides and the first slide blocks 322 between described the first slide plate, relatively have the first slotted eye 323 on described the first slide plate 321, described the first slide block 322 is bolted between described the first slotted eye 323, be provided with on described the first slide block 322 be used to the first installing hole 324 that described arc-welding set is installed, be provided with micrometer adjusting screw hole 325 in these the first installing hole two sides and bottom, in micrometer adjusting screw is housed.
In the present embodiment; described arc-welding set 200 is the TIG welder; it comprises TIG welding gun 210 and wire feeder 220; wherein said TIG welding gun 210 is installed in first installing hole 324 of the first slide block of described arc-welding set installation portion 320, and described wire feeder is installed on the opposite side protection gas chamber sidewall relative with described TIG welding gun.
The TIG welding gun 210 that above-mentioned arc-welding set installation portion 320 is installed can slide in the first slotted eye by the first slide block and realize the adjusting of short transverse, and can realize axial adjustment moving axially of the first installing hole by the TIG welding gun, also can realize by micrometer adjusting screw 325 the angle fine setting of TIG welding gun, have suitable distance thereby TIG welding gun welding electrode can be adjusted to illuminated laser spot, make two spacings between thermal source be kept an optimum value.
described arc-welding set installation portion 320 also comprises the second Long Circle hole 316 that is oppositely arranged with described the first Long Circle hole 315, 316 two sides be arranged in parallel in this second Long Circle hole two the second slide plates 326 and the second slide blocks 327 between described the second slide plate 326, relatively have the second slotted eye 328 on described the second slide plate, described the second slide block 327 is bolted between described the second slotted eye 328, be provided with on described the second slide block for the second installing hole 329 that wire feeder 220 is installed, in this second installing hole side and the bottom be provided with micrometer adjusting screw hole 325, in micrometer adjusting screw 325 is housed.In like manner, but the also distance of regulating wire feeding 220 and illuminated laser spot or pad of this arc-welding set installation portion 320.
The above is the explanation of the present invention being carried out as an example of the laser-TIG hybrid weldering example, and in fact, the present invention also can be used for laser-MIG hybrid welding, only needs this moment to omit the TIG welding gun, and the welding wire of wire feeder is got final product as an electrode.
In addition, air jet system is also to use simultaneously with nozzle and jet ring the explanation of carrying out as example in the above-described embodiments, but the present invention is not limited to above-described embodiment, and for example described nozzle or jet ring also can use separately, still can realize purpose of the present invention.
The above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications; also above-mentioned technology contents can be combined to form other technical scheme, these improvements and modifications, and the other technologies scheme that forms also should be considered as protection scope of the present invention.
Claims (10)
1. gas protection device for laser-arc hybrid welding is characterized in that comprising:
The protection air chamber has for the link and the openend relative with this link that connect laser head;
Air jet system is loaded in described protection air chamber and is used for from least two directions towards described openend injecting protective gas;
the arc-welding set installation portion, be positioned at described protection gas chamber sidewall, be used for installing arc-welding set, described arc-welding set installation portion comprises the first Long Circle hole that axially arranges along described protection gas chamber sidewall, two the first slide plates that be arranged in parallel in this Long Circle hole two sides and the first slide block between described the first slide plate, relatively have the first slotted eye on described the first slide plate, described the first slide block is bolted between described the first slotted eye, be provided with on described the first slide block be used to the first installing hole that described arc-welding set is installed, in these the first installing hole two sides and bottom, micrometer adjusting screw is housed, the arc-welding set that is arranged in described the first installing hole is the TIG welding gun, the second Long Circle hole that described arc-welding set installation portion is included in also that described protection gas chamber sidewall and described the first Long Circle hole relative position arrange, two the second slide plates that two sides in this second Long Circle hole be arranged in parallel and the second slide block between described the second slide plate, relatively have the second slotted eye on described the second slide plate, described the second slide block is bolted between described the second slotted eye, be provided with on described the second slide block for the second installing hole that wire feeder is installed, in this second installing hole side and bottom, micrometer adjusting screw is housed.
2. gas protection device for laser-arc hybrid welding according to claim 1, it is characterized in that: described air jet system is at least two nozzles, each nozzle evenly distributes along described protection air chamber inwall.
3. gas protection device for laser-arc hybrid welding according to claim 2; it is characterized in that: each nozzle is connected to the lower connecting hole that is positioned at described protection gas chamber sidewall and is communicated with the protective gas feedway by connector; described connector has for the upper link that is connected with above-mentioned protection air chamber inwall and the lower link that is connected being connected with described nozzle; upward have an angle between link and lower link, make nozzle point to described openend.
4. gas protection device for laser-arc hybrid welding according to claim 2; it is characterized in that: the cylindricality Water conservancy diversion core is housed in described nozzle; be arranged with at least two guiding gutters on this Water conservancy diversion core, each guiding gutter is along the surperficial screw arrangement of described cylindricality Water conservancy diversion core.
5. according to claim 2,3 or 4 described gas protection device for laser-arc hybrid welding, it is characterized in that: air jet system is four nozzles.
6. gas protection device for laser-arc hybrid welding according to claim 1; it is characterized in that: described air jet system is jet ring; this jet ring is arranged on the protection air chamber near the position of link; edge at this jet ring is provided with air admission hole; inside is provided with ring cavity; this air admission hole is communicated with the protective gas feedway by the upper connecting hole that is positioned at the protection gas chamber sidewall; lower surface at described jet ring is arranged with at least two puff prots that are communicated with above-mentioned ring cavity, and each puff prot points to respectively described openend.
7. gas protection device for laser-arc hybrid welding according to claim 6, it is characterized in that: described air admission hole is along the tangential setting of described jet ring.
8. gas protection device for laser-arc hybrid welding according to claim 6, it is characterized in that: described puff prot is arranged ringwise.
9. laser-arc hybrid welding machine; comprise laser head and arc-welding set; it is characterized in that: also comprise the described gas protection device for laser-arc hybrid welding of any one in claim 1-8; the protection air chamber link of this gas shield device is connected in below described laser head, and described arc-welding set is installed on described arc-welding set installation portion.
10. laser-arc hybrid welding machine according to claim 9, it is characterized in that: described arc-welding set is the TIG welder, comprise TIG welding gun and wire feeder, described TIG welding gun is installed on the first slide block of described arc-welding set installation portion, and described wire feeder is installed on the second slide block of described arc-welding set installation portion.
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| CN 200910210194 CN101920400B (en) | 2009-10-30 | 2009-10-30 | Gas protection device for laser-arc hybrid welding and laser-arc hybrid welding machine |
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| CN102463416B (en) * | 2011-07-19 | 2014-05-28 | 福建省维德科技有限公司 | Laser compound welding equipment |
| CN104439706A (en) * | 2014-11-28 | 2015-03-25 | 沈阳飞机工业（集团）有限公司 | Integrated laser and electric arc hybrid wire-feeding welding device |
| CN106141437A (en) * | 2016-08-15 | 2016-11-23 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of laser and double plasma arc composite welding apparatus |
| CN108213753A (en) * | 2017-12-30 | 2018-06-29 | 沈阳富创精密设备有限公司 | A kind of laser TIG composite welding heads of new model |
| JP7030014B2 (en) * | 2018-05-18 | 2022-03-04 | 株式会社Ｉｈｉ検査計測 | Hybrid welding equipment |
| CN110856885B (en) * | 2018-08-17 | 2022-07-26 | 中国商用飞机有限责任公司 | Laser-arc hybrid welding gas protection device and method |
| CN109773337B (en) * | 2019-01-21 | 2024-09-24 | 深圳市华瀚激光科技有限公司 | Laser welding device and welding protective cover |
| CN109834389A (en) * | 2019-03-18 | 2019-06-04 | 华中科技大学 | A kind of multi-functional welding equipment and welding method for continuous rolling |
| JP7211491B2 (en) * | 2019-03-28 | 2023-01-24 | Ｊｆｅスチール株式会社 | LAP LASER SPOT WELD JOINT, MANUFACTURING METHOD THEREOF, AND STRUCTURAL MEMBER FOR AUTOMOBILE BODY |
| CN110560904B (en) * | 2019-09-16 | 2021-08-31 | 哈尔滨工业大学 | Multi-beam-flow-assisted laser-electric arc hybrid welding method |
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| CN1474731A (en) * | 2000-11-16 | 2004-02-11 | ��Ŧ�� | Device for laser-hybrid welding process |
| CN1943959A (en) * | 2006-10-20 | 2007-04-11 | 大连理工大学 | Laser-electric arc composite processing method |
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| CN101920400A (en) | 2010-12-22 |
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