CN115156715A - Device and method for laser welding vector air feeding protection - Google Patents
Device and method for laser welding vector air feeding protection Download PDFInfo
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- CN115156715A CN115156715A CN202210689633.2A CN202210689633A CN115156715A CN 115156715 A CN115156715 A CN 115156715A CN 202210689633 A CN202210689633 A CN 202210689633A CN 115156715 A CN115156715 A CN 115156715A
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- 238000003466 welding Methods 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000007664 blowing Methods 0.000 claims abstract description 96
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 63
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser welding vector air feeding protection device, which comprises a welding machine main body, wherein a hollow rotating motor is arranged at the lower part of the welding machine main body, a double-layer protection air blowing pipe is connected below the hollow rotating motor, two protection air paths are arranged in the welding machine main body and the double-layer protection air blowing pipe, the two protection air paths are respectively a first air blowing protection air path and a second air blowing protection air path, a first air port and a second air port which are respectively and correspondingly connected with the first air blowing protection air path and the second air blowing protection air path are arranged on the welding machine main body, and the first air port is positioned above the second air port; aiming at the problem of easy oxidation in the traditional laser welding process of titanium alloy, aluminum alloy, high-temperature alloy and the like, the device designs and manufactures the welding protection drag cover capable of rotating vector tracking, and the hollow rotating motor is used for driving the welding protection drag cover to rotate in a positioning manner, so that the welding protection drag cover is always parallel to the path direction of a welding seam, and effective protection is formed.
Description
Technical Field
The invention relates to the field of laser welding, in particular to a device and a method for vector gas feeding protection in laser welding.
Background
The laser welding method has the advantages of high welding efficiency, good welding seam quality and the like when the titanium alloy, the aluminum alloy and the high-temperature alloy are subjected to laser welding, and is widely applied to the field of welding at present. However, in general, active metals such as titanium alloy are easily oxidized due to reaction of oxygen, nitrogen, water vapor and other gases in the air during welding, so that the performance of a weld joint and a weld joint in a heat affected zone is reduced, and the welding quality is affected.
The common method is that a dragging cover is added at the rear part of the welding, the welding dragging cover is usually placed at the rear part of a laser welding point, and a large amount of inert gas (argon) is filled in the welding dragging cover for protection, so that the problem of welding seam oxidation caused by the fact that a molten pool is still in a high-temperature state after the laser welding is prevented; at present, a common dragging cover protection method is limited by a structure, an extra vent pipe is required to be added usually, the dragging cover can only be fixed in a single direction in the welding process, the angle cannot be changed along with the vector direction of a welding seam, the dragging cover is limited by the extra vent pipe, twisting and winding can occur during multi-angle rotation, the welding process is seriously affected, and welding shutdown is caused.
Disclosure of Invention
The invention aims to provide a device and a method for protecting vector gas feeding in laser welding, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a device for vector gas supply protection in laser welding comprises a welding machine main body, wherein a hollow rotating motor is arranged at the lower part of the welding machine main body, a double-layer protection gas blowing pipe is connected below the hollow rotating motor, two protection gas circuits are arranged in the welding machine main body and the double-layer protection gas blowing pipe, the two protection gas circuits are respectively a first gas blowing protection gas circuit and a second gas blowing protection gas circuit, a first gas port and a second gas port are arranged on the welding machine main body and are respectively correspondingly connected with the first gas blowing protection gas circuit and the second gas blowing protection gas circuit, the first gas port is positioned above the second gas port, and the first gas port and the second gas port are respectively provided with two gas ports; the double-layer protection air blowing pipe is provided with an inner-layer and outer-layer channel structure, the inner layer channel of the double-layer protection air blowing pipe is a first air blowing protection air path main body, the outer layer channel of the double-layer protection air blowing pipe is a second air blowing protection air path main body, and the top of the outer side of the double-layer protection air blowing pipe is provided with an air hole which is communicated with a second air port in a butt joint mode; and the lower part of the outer side of the double-layer protection gas blowing pipe is provided with a welding protection dragging cover which is arranged in parallel with the double-layer protection gas blowing pipe, the welding protection dragging cover is hollow, and the welding protection dragging cover is in butt joint communication with a second gas blowing protection gas circuit through an extension pipeline on the outer side of the double-layer protection gas blowing pipe.
The welding method of the device comprises the following steps:
step 1: the welding machine main body is fixedly driven by a mechanical arm or a three-dimensional moving platform to move according to a set route, and all welding seams can be welded.
And 2, in the welding process, synchronous air intake is carried out through the first air port and the second air port, the first air blowing protection air path and the second air blowing protection air path guide air flow to be discharged at fixed points, wherein the first air blowing protection air path is coaxial with the laser welding head, an inner layer channel of the double-layer protection air blowing pipe points to a welding seam path, namely a molten pool, metal steam can be effectively prevented from backflushing to a welding lens of the laser welding head while the molten pool is protected, and the guide air flow of the second air blowing protection air path reaches the welding protection drag cover after passing through an outer channel of the double-layer air blowing pipe and is used for cooling behind the welding molten pool and protecting after welding, so that the welding seam is prevented from being oxidized.
And 3, driving the double-layer protection gas blowing pipe and the welding protection dragging cover to rotate and position by the hollow rotating motor under the control of a numerical control PLC (programmable logic controller), wherein the first gas blowing protection gas circuit and the second gas blowing protection gas circuit cannot interfere with each other in the rotating process.
And 4, in the welding process, automatically calculating an included angle theta between a motion vector and the initial direction according to a motion track system, and simultaneously controlling the rotation of the hollow rotating motor in a synchronous control mode, wherein the upper computer controls the motion control card to realize the rotation positioning of the welding protection dragging cover.
As a preferred embodiment of the present invention: and the first blowing protection air circuit and the second blowing protection air circuit are provided with a partition plate above the double-layer protection air blowing pipe for division.
As a still further preferable embodiment of the present invention: a plurality of close-packed holes are formed in the plate body below the welding protection dragging cover, filter cotton is filled in the close-packed holes, and gas entering the second blowing protection gas circuit can be uniformly dispersed.
Compared with the prior art, the invention has the beneficial effects that:
aiming at the problem that titanium alloy, aluminum alloy, high-temperature alloy and the like are easy to oxidize in the traditional laser welding process, the device designs and manufactures the welding protection drag cover capable of rotating vector tracking, and the hollow rotating motor is used for driving the welding protection drag cover to rotate in a positioning mode, so that the welding protection drag cover and the path direction of a welding seam are always parallel, and effective protection is formed;
meanwhile, the device performs double-path gas segmentation by adding a partition plate through a designed double-layer protection gas pipe, avoids the problem that the traditional welding pipeline is wound after rotating for 360 degrees, realizes the function of n multiplied by 360 degrees wireless continuous rotation, and plays an important role in complex path welding seams.
Meanwhile, the method can be used in the electric arc additive manufacturing technologies such as laser, TIG, MIG and the like, and effective protection of various welding methods can be realized by adopting the positions of the double-layer protective gas shield in different welding methods.
Drawings
Fig. 1 is a perspective view of the overall structure of the device of the present invention.
Fig. 2 is a cross-sectional view of the device of the present invention.
Fig. 3 is a detailed structure diagram of the second air path in the device of the present invention.
Fig. 4 is a schematic diagram of an angle between a motion vector and an initial direction of the hollow rotating motor according to the present invention.
In the figure, 1-a welding machine body, 2-a welding workpiece, 3-a first air port, 4-a second air port, 5-a hollow rotating motor, 6-a double-layer protection air blowing pipe, 7-a welding protection dragging cover, 8-a partition plate, 9-an air hole, 11-a laser welding head, 21-a welding seam path, 111-a first air blowing protection air path and 112-a second air blowing protection air path.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, in the embodiment of the present invention, a device for laser welding vector air feeding protection includes a welding machine main body 1, a hollow rotating motor 5 is disposed at a lower portion of the welding machine main body 1, a double-layer protection blowing pipe 6 is connected below the hollow rotating motor, two protection air paths are disposed in the welding machine main body 1 and the double-layer protection blowing pipe 6, the two protection air paths are a first air blowing protection air path 111 and a second air blowing protection air path 112, a first air port 3 and a second air port 4 are disposed on the welding machine main body 1 and correspondingly connected to the first air blowing protection air path 111 and the second air blowing protection air path 112, the first air port 3 is located above the second air port 4, and the first air port 3 and the second air port 4 are both provided with two air ports; the double-layer protection gas blowing pipe 6 is provided with an inner and outer double-layer channel structure, the inner layer channel of the double-layer protection gas blowing pipe 6 is a first gas blowing protection gas circuit 111 main body, the outer layer channel of the double-layer protection gas blowing pipe 6 is a second gas blowing protection gas circuit 112 main body, and the top of the outer side of the double-layer protection gas blowing pipe 6 is provided with a gas hole 9 which is communicated with a second gas port 4 in a butt joint mode; the lower part of the outer side of the double-layer protection gas blowing pipe 6 is provided with a welding protection dragging cover 7 which is arranged in parallel with the double-layer protection gas blowing pipe, the welding protection dragging cover 7 is hollow, and the welding protection dragging cover 7 is communicated with a second gas blowing protection gas circuit 112 through an extension pipeline on the outer side of the double-layer protection gas blowing pipe 6 in a butt joint mode;
the first blowing protection gas circuit 111 and the second blowing protection gas circuit 112 are provided with a partition plate 8 above the double-layer protection gas blowing pipe 6 for division.
Furthermore, a plurality of close-packed holes are formed in the plate body below the welding protection dragging cover 7, filter cotton is filled in the close-packed holes, and gas entering the second blowing protection gas circuit 112 can be uniformly dispersed, so that the purpose of better protection is achieved.
Referring to fig. 4, the welding method of the above apparatus includes:
step 1: the welding method comprises the following steps of placing a welding workpiece 2 below a welding machine main body 1, presetting a welding seam path 21, fixedly driving the welding machine main body 1 by a mechanical arm or a three-dimensional moving platform, moving according to a set path, and completing welding of all welding seams.
And 2, in the welding process, synchronous air intake is carried out through the first air port 3 and the second air port 4, the first air blowing protection air passage 111 and the second air blowing protection air passage 112 guide air flow to be discharged at fixed points, wherein the first air blowing protection air passage 111 is coaxial with the laser welding head 11, an inner layer passage of the double-layer protection air blowing pipe 6 points to a welding seam path 21, namely a molten pool, metal steam can be effectively prevented from backflushing to a welding lens of the laser welding head 11 while the molten pool is protected, and the guide air flow of the second air blowing protection air passage 112 reaches the welding protection drag cover 7 after passing through an outer side passage of the double-layer air blowing pipe and is used for cooling and post-welding protection behind the welding molten pool to prevent welding seams from being oxidized.
And 3, driving the double-layer protection gas blowing pipe 6 and the welding protection dragging cover 7 to rotate and position by the hollow rotating motor 5 under the control of a numerical control PLC (programmable logic controller), wherein the first gas blowing protection gas circuit 111 and the second gas blowing protection gas circuit 112 cannot interfere with each other in the rotating process.
And 4, in the welding process, automatically calculating an included angle theta between a motion vector and the initial direction according to a motion track system, and simultaneously controlling the rotation of the hollow rotating motor 5 in a synchronous control mode, wherein the upper computer controls a motion control card to realize the rotary positioning of the welding protection dragging cover 7.
The welding protection drag cover 7 can be always arranged behind the welding motion track in the welding process through the steps, so that the welding oxidation is avoided.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes 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 (4)
1. The device for laser welding vector air feeding protection comprises a welding machine main body (1) and is characterized in that a hollow rotating motor (5) is arranged at the lower part of the welding machine main body (1), a double-layer protection air blowing pipe (6) is connected below the hollow rotating motor, two protection air paths are arranged in the welding machine main body (1) and the double-layer protection air blowing pipe (6), the two protection air paths are respectively a first air blowing protection air path (111) and a second air blowing protection air path (112), a first air port (3) and a second air port (4) are arranged on the welding machine main body (1) and are respectively correspondingly connected with the first air blowing protection air path (111) and the second air blowing protection air path (112), the first air port (3) is positioned above the second air port (4), and the first air port (3) and the second air port (4) are respectively provided with two air ports; the double-layer protection gas blowing pipe (6) is provided with an inner and outer double-layer channel structure, an inner channel of the double-layer protection gas blowing pipe (6) is a first gas blowing protection gas circuit (111) main body, an outer channel of the double-layer protection gas blowing pipe (6) is a second gas blowing protection gas circuit (112) main body, and the top of the outer side of the double-layer protection gas blowing pipe (6) is provided with a gas hole (9) which is communicated with a second gas port (4) in a butt joint mode; the welding protection dragging cover (7) arranged in parallel with the double-layer protection blowing pipe (6) is arranged on the lower portion of the outer side of the double-layer protection blowing pipe (6), the welding protection dragging cover (7) is hollow, and the welding protection dragging cover (7) is communicated with a second blowing protection air circuit (112) in a butt joint mode through an extension pipeline on the outer side of the double-layer protection blowing pipe (6).
2. The laser welding vector air supply protection device as claimed in claim 1, wherein the first air blowing protection air path (111) and the second air blowing protection air path (112) are divided by a partition plate (8) above the double-layer protection air blowing pipe (6).
3. The laser welding vector air supply protection device as claimed in claim 1, wherein a plurality of closely-arranged holes are formed in the plate body below the welding protection dragging cover (7), and filter cotton is filled in the closely-arranged holes and used for uniformly dispersing air entering the second air blowing protection air path (112).
4. A welding method of a laser welding vector gas-feeding protection device, which is applied to the device of any claim in claims 1-3,
step 1: the welding method comprises the following steps that a welding workpiece (2) is placed below a welding machine main body (1), a welding seam path (21) is preset, the welding machine main body (1) is fixedly driven by a mechanical arm or a three-dimensional moving platform and moves according to a set route, and all welding seams can be welded;
step 2, in the welding process, synchronous air intake is carried out through a first air port (3) and a second air port (4), a first air blowing protection air path (111) and a second air blowing protection air path (112) guide air flow to be discharged at fixed points, wherein the first air blowing protection air path (111) is coaxial with a laser welding head (11), an inner layer channel of a double-layer protection air blowing pipe (6) points to a welding seam path (21), namely a molten pool, and the guide air flow of the second air blowing protection air path (112) reaches a welding protection drag cover (7) after passing through an outer channel of the double-layer air blowing pipe;
step 3, the hollow rotating motor (5) is controlled by a numerical control PLC to drive the double-layer protection gas blowing pipe (6) and the welding protection dragging cover (7) to rotate and position, and the first gas blowing protection gas circuit (111) and the second gas blowing protection gas circuit (112) cannot interfere with each other in the rotating process;
and 4, in the welding process, automatically calculating an included angle theta between a motion vector and the initial direction according to a motion track system, and simultaneously controlling the rotation of the hollow rotating motor (5) in a synchronous control mode, wherein in the process, the upper computer controls the motion control card to realize the rotational positioning of the welding protection drag cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210689633.2A CN115156715A (en) | 2022-06-17 | 2022-06-17 | Device and method for laser welding vector air feeding protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210689633.2A CN115156715A (en) | 2022-06-17 | 2022-06-17 | Device and method for laser welding vector air feeding protection |
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818050Y (en) * | 2005-09-28 | 2006-09-20 | 中国航空工业第一集团公司北京航空制造工程研究所 | Two-dimensional compositive curve welding seam gas protector |
| WO2007028185A2 (en) * | 2005-09-09 | 2007-03-15 | Fronius International Gmbh | Welding torch with a fixing element for the gas nozzle, said element being capable of extension; process control method for a welding system equipped with said welding torch; gas nozzle for said welding torch; and contact tube for said welding torch |
| CN2905302Y (en) * | 2006-01-18 | 2007-05-30 | 北京工业大学 | Protective nozzle for laser welding |
| CN101823235A (en) * | 2009-12-17 | 2010-09-08 | 成都飞机工业（集团）有限责任公司 | Method for automatically detecting and controlling water cutting of arc-shaped thin plate spay nozzle cutting head in normal direction |
| JP5051562B1 (en) * | 2012-03-12 | 2012-10-17 | 哲男 原田 | Welding torch |
| US20130068745A1 (en) * | 2011-09-15 | 2013-03-21 | Lincoln Global | Gas shielding device for a welding system |
| CN104551353A (en) * | 2014-12-19 | 2015-04-29 | 北京星通浩宇科技发展有限公司 | Arc semi-closed gas protection cover for welding pipeline and welding method |
| CN205551763U (en) * | 2016-03-31 | 2016-09-07 | 哈电集团（秦皇岛）重型装备有限公司 | Unlimited gyration narrow gap welding aircraft nose |
| CN107378210A (en) * | 2017-09-18 | 2017-11-24 | 沈阳飞机工业（集团）有限公司 | A kind of argonaut welding weld seam front gas shield device |
| CN108857001A (en) * | 2018-09-19 | 2018-11-23 | 西南交通大学 | A kind of argon arc welding welding robot weld seam backside gas protective device |
| CN109277673A (en) * | 2018-11-22 | 2019-01-29 | 江苏海事职业技术学院 | A kind of depressed underwater local dry cavity GMAW welding torch of structure of bilayer |
| CN208575416U (en) * | 2018-08-06 | 2019-03-05 | 南通中集能源装备有限公司 | Welding back gas shielded device |
| CN109865935A (en) * | 2019-04-03 | 2019-06-11 | 西安飞机工业（集团）有限责任公司 | A kind of weld seam front protecting device of Titanium Laser Welding and guard method |
| CN110434459A (en) * | 2019-07-20 | 2019-11-12 | 北京工业大学 | A kind of double-layer coaxial laser welding head for controlling plumage brightness and protecting molten bath |
| CN110576233A (en) * | 2019-10-08 | 2019-12-17 | 华工法利莱切焊系统工程有限公司 | Gas control system for laser brazing process and laser welding equipment |
| CN110834134A (en) * | 2019-11-26 | 2020-02-25 | 中国航发沈阳黎明航空发动机有限责任公司 | Automatic argon tungsten-arc welding self-adaptive protective dragging cover |
| CN210629994U (en) * | 2019-10-15 | 2020-05-26 | 广州炎航电子有限公司 | Trigger on SMT paster |
| CN111451617A (en) * | 2020-03-12 | 2020-07-28 | 山东大学 | Double-gas-path welding contact nozzle, welding gun comprising same and welding method |
| CN212946179U (en) * | 2020-08-17 | 2021-04-13 | 常州坤达焊接技术有限公司 | Tube sheet welding equipment aircraft nose overall arrangement |
-
2022
- 2022-06-17 CN CN202210689633.2A patent/CN115156715A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007028185A2 (en) * | 2005-09-09 | 2007-03-15 | Fronius International Gmbh | Welding torch with a fixing element for the gas nozzle, said element being capable of extension; process control method for a welding system equipped with said welding torch; gas nozzle for said welding torch; and contact tube for said welding torch |
| CN2818050Y (en) * | 2005-09-28 | 2006-09-20 | 中国航空工业第一集团公司北京航空制造工程研究所 | Two-dimensional compositive curve welding seam gas protector |
| CN2905302Y (en) * | 2006-01-18 | 2007-05-30 | 北京工业大学 | Protective nozzle for laser welding |
| CN101823235A (en) * | 2009-12-17 | 2010-09-08 | 成都飞机工业（集团）有限责任公司 | Method for automatically detecting and controlling water cutting of arc-shaped thin plate spay nozzle cutting head in normal direction |
| US20130068745A1 (en) * | 2011-09-15 | 2013-03-21 | Lincoln Global | Gas shielding device for a welding system |
| JP5051562B1 (en) * | 2012-03-12 | 2012-10-17 | 哲男 原田 | Welding torch |
| CN104551353A (en) * | 2014-12-19 | 2015-04-29 | 北京星通浩宇科技发展有限公司 | Arc semi-closed gas protection cover for welding pipeline and welding method |
| CN205551763U (en) * | 2016-03-31 | 2016-09-07 | 哈电集团（秦皇岛）重型装备有限公司 | Unlimited gyration narrow gap welding aircraft nose |
| CN107378210A (en) * | 2017-09-18 | 2017-11-24 | 沈阳飞机工业（集团）有限公司 | A kind of argonaut welding weld seam front gas shield device |
| CN208575416U (en) * | 2018-08-06 | 2019-03-05 | 南通中集能源装备有限公司 | Welding back gas shielded device |
| CN108857001A (en) * | 2018-09-19 | 2018-11-23 | 西南交通大学 | A kind of argon arc welding welding robot weld seam backside gas protective device |
| CN109277673A (en) * | 2018-11-22 | 2019-01-29 | 江苏海事职业技术学院 | A kind of depressed underwater local dry cavity GMAW welding torch of structure of bilayer |
| CN109865935A (en) * | 2019-04-03 | 2019-06-11 | 西安飞机工业（集团）有限责任公司 | A kind of weld seam front protecting device of Titanium Laser Welding and guard method |
| CN110434459A (en) * | 2019-07-20 | 2019-11-12 | 北京工业大学 | A kind of double-layer coaxial laser welding head for controlling plumage brightness and protecting molten bath |
| CN110576233A (en) * | 2019-10-08 | 2019-12-17 | 华工法利莱切焊系统工程有限公司 | Gas control system for laser brazing process and laser welding equipment |
| CN210629994U (en) * | 2019-10-15 | 2020-05-26 | 广州炎航电子有限公司 | Trigger on SMT paster |
| CN110834134A (en) * | 2019-11-26 | 2020-02-25 | 中国航发沈阳黎明航空发动机有限责任公司 | Automatic argon tungsten-arc welding self-adaptive protective dragging cover |
| CN111451617A (en) * | 2020-03-12 | 2020-07-28 | 山东大学 | Double-gas-path welding contact nozzle, welding gun comprising same and welding method |
| CN212946179U (en) * | 2020-08-17 | 2021-04-13 | 常州坤达焊接技术有限公司 | Tube sheet welding equipment aircraft nose overall arrangement |
Non-Patent Citations (1)
| Title |
|---|
| 柳晓絮;郑振太;何蒙;史芬;王阔;: "管材环缝焊接背面气保护装置的设计和制作", 焊接技术, no. 04, 28 April 2019 (2019-04-28) * |
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