CN202684328U - Shielding gas curtain for laser welding - Google Patents
Shielding gas curtain for laser welding Download PDFInfo
- Publication number
- CN202684328U CN202684328U CN 201220186703 CN201220186703U CN202684328U CN 202684328 U CN202684328 U CN 202684328U CN 201220186703 CN201220186703 CN 201220186703 CN 201220186703 U CN201220186703 U CN 201220186703U CN 202684328 U CN202684328 U CN 202684328U
- Authority
- CN
- China
- Prior art keywords
- collecting chamber
- inlet pipe
- gas curtain
- mirror
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model relates to the welding field, particularly to the laser welding field. A shielding gas curtain for laser welding comprises a gas inlet pipe (1), a gas collecting chamber (2), gas curtain forming holes (3), a clamping ring (4) and a set screw (5). According to the shielding gas curtain, a laser welding mirror (7) is greatly protected in the laser welding process, metal spattering is prevented from directly sputtering on the laser welding mirror (7) to burn or pollute the laser welding mirror (7), quality of laser beams (12) is guaranteed, the service life of the laser welding mirror (7) is prolonged, the production cost is reduced, and the welding quality is improved.
Description
Technical field
The utility model relates to welding field, particularly relates to the laser weld field.
Background technology
Laser Welding belongs to one of high energy beam welding processing method.It as light source, melts formation welding point to metal with the laser of high-energy-density.Because the heated perimeter of Laser Welding is little, speed of welding is fast, and the heat affected area is little, and welding stress and distortion is little, and welding quality is good, and working (machining) efficiency is high, becomes Advanced Welding Technique indispensable in the modern manufacturing industry.In addition, Laser Welding can be welded the material that conventional method is difficult to weld, such as metal and nonmetallic materials such as refractory metal, pottery, lucite, therefore by wide popularization and application in various fields.
Analyze from principle, Laser Welding mainly comprises material fusing, evaporation, and the thickness direction that penetrates workpiece forms long and narrow cavity, and along with the carrying out of laser weld, the seam region of aperture between two workpiece moves, and then forms weld seam.And the fusing of the material in the welding process and evaporation, will inevitably produce metal splashes, and this is the inevitable problem of high energy beam welding.
Although Laser Welding belongs to the non-contact type welding; and the size of splashing that produces during the welding of different materials is also slightly different; under the effect of laser weld high voltage protective gas; normal small splashing can be blocked; but powerful splash only depends on protection gas still can't eliminate burn or pollution to laser weld mirror 7, must take other effective ancillary method to be controlled.On the one hand, according to the actual fact, being attached on splashing on the laser weld mirror 7 is difficult to clean out by the method for routine, even if can clean out, on laser weld mirror 7, also can stay spot, this will directly have influence on laser beam quality, in case beam quality is bad, the welding quality of product just is difficult to guarantee.On the other hand, when laser weld mirror 7 is seriously polluted, the welding mirror that must more renew, this certainly will produce high cost and expense.
So, when laser weld, increasing effective auxiliary protection measure, protection laser weld mirror 7 is not damaged and pollutes; and reduce damage and pollution, and guarantee beam quality, prolong the service life of laser weld mirror 7; improving the quality of products, is the major issue that Laser Welding must be controlled and solve.
The utility model content
The purpose of this utility model is: design a kind of novel, applicable laser welding protective curtain; the high pressure gas fluid layer with certain pressure and deflection by the formation of protection gas curtain; what produce when intercepting welding splashes; reduce splash to burn and the pollution of laser weld mirror 7; prolong 7 service lifes of laser weld mirror; guarantee the quality of laser beam 12, reduce laser weld mirror 7 cost depletions, improve welding quality.
The technical solution of the utility model is that the utility model comprises that air inlet pipe 1, air collecting chamber 2, gas curtain form aperture 3, holding ring 4, hold-down screw 5; Air inlet pipe 1 is the thick stainless steel hollow pipe of 2～3mm, its inner caliber is 7～8mm, one end of air inlet pipe 1 is connected with air collecting chamber 2 by welding manner, the other end of air inlet pipe 1 connects tunger tube 6, tunger tube 6 is by the high pressure argon gas of air inlet pipe 1 to air collecting chamber 2 inputs 12～14bar/s, air collecting chamber 2 is the stainless steel circular cavity of 12～14mm, wall thickness is 0.5～0.8mm, inside diameter D is 45～50mm, be drilled with the gas curtain formation aperture 3 of 16 circumferentially equal sections at the inner surface radial direction of air collecting chamber 2, the aperture of aperture 3 is 1.5～1.8mm, so that the argon gas that enters from air inlet pipe 1 forms ejaculation the aperture 3 from gas curtain after air collecting chamber 2 interior abundant gatherings, between part 9 face of welds and laser weld mirror 7, form the high pressure gas fluid layer with certain pressure and deflection, intercept splash 10 coup injuries that produce when welding and pollute laser weld mirror 7.Holding ring 4 is installed in the position of the opposite side of air collecting chamber 2 and air inlet pipe 1 symmetry; holding ring 4 welds together with air collecting chamber 2; with hold-down screw 5 holding ring 4 is fixed in the laser welding system 11, makes protection gas curtain 8 between laser weld mirror 7 and splash 10.
The utility model has the advantages that: solved laser weld splash burn and polluted the problem of laser weld mirror 7, guaranteed beam quality, prolonged laser weld mirror 7 service lifes, reduced production cost, guaranteed product quality.
Description of drawings
Fig. 1 is the front view of protection gas curtain,
Fig. 2 is the top plan view of protection gas curtain,
Fig. 3 is the schematic diagram that increases the laser welding protective curtain,
The 1st, tracheae, the 2nd, air collecting chamber, the 3rd, gas curtain forms aperture, and the 4th, holding ring, the 5th, hold-down screw, the 6th, tunger tube, the 7th, laser weld mirror, the 8th, protection gas curtain, the 9th, part, the 10th, splash, the 11st, laser welding system, the 12nd, laser beam.
The specific embodiment
The below is described in further details the utility model.Referring to Fig. 2, laser welding protective curtain 8 is characterized in that, protection gas curtain 8 forms aperture 3, holding ring 4, hold-down screw 5 etc. by air inlet pipe 1, air collecting chamber 2, gas curtain and forms.Air collecting chamber 2 is 12～14mm stainless steel annulus, wall thickness 0.5mm, internal diameter 50mm.At the aperture 3 that radially is drilled with 16 circumferentially equal sections, the aperture is 1.2～1.5mm.Right-hand member at air collecting chamber 2 is the hollow air inlet pipe 1 of the thick stainless steel of 3mm, inner caliber 7～8mm, and the foot section brought tapering is used for connecting tunger tube 6, supplies the high pressure argon gas of 12～14ba r/s to enter air collecting chamber 2.High pressure gas from 16 circumferentially all 1.2～1.5mm gas curtain of section formation aperture, 3 parallel ejaculations, forms the high voltage protective airflow layer with certain pressure and deflection after air collecting chamber 2 interior abundant gatherings, form gas curtain.Left end at air collecting chamber 2 is fixed clamp ring 4 and hold-down screw 5, is convenient to whole protection gas curtain 8 is mounted and fixed in the laser welding system 11, sees Fig. 1, sees Fig. 3.
In order to make the protection gas curtain have certain deflection and pressure; can not affect because air-flow is excessive laser weld gas again; this novel protected gas curtain has adopted the argon flow amount than the low 6～8bar of main protection-gas welding; adopt simultaneously the gas curtain formation aperture 3 of 1.2～1.5mm to come supercharging, reach reliable and stable shielding gas flow layer of formation between face of weld and laser weld mirror 7.
Operation principle of the present utility model is: 12～14bar/s protection gas enters air collecting chamber 2 from air inlet pipe 1; after in annular chamber, assembling; form aperture 3 parallel ejaculations by gas curtain; between weld parts surface 9 and laser weld mirror 7, form the high pressure gas fluid layer with certain pressure and deflection; splash coup injury and the pollution laser weld mirror 7 that produce when intercepting welding; prolong 7 service lifes of welding laser weld mirror, guaranteed laser beam 12 quality.
The utility model example 1; in the laser weld of certain model batch titanium alloy component, used the utility model, the result surface: the life cycle of laser weld mirror 7 is than using protection gas curtain 8 to prolong 1 times; 7 surface contaminations of laser weld mirror seldom, laser beam 12 steady qualities.
The utility model example 2 in the laser weld of certain model batch stainless steel parts, has used the utility model, checks after 3 weeks of continuous operation and finds that laser weld mirror 7 surfaces are very clean, without any pollution.And before not using the utility model, the pollution that every weekly check laser weld mirror 7 all has in various degree, even be difficult to remove.
Claims (1)
1. a laser welding protective curtain is characterized in that, protection gas curtain [8] forms aperture [3], holding ring [4], hold-down screw [5] by air inlet pipe [1], air collecting chamber [2], gas curtain and forms; Air inlet pipe [1] is the thick stainless steel hollow pipe of 2～3mm, its inner caliber is 7～8mm, one end of air inlet pipe [1] is connected with air collecting chamber [2] by welding manner, the other end of air inlet pipe [1] connects tunger tube [6], tunger tube [6] is by the high pressure argon gas of air inlet pipe [1] to air collecting chamber [2] input 12～14bar/s, air collecting chamber [2] is the stainless steel circular cavity of 12～14mm, wall thickness is 0.5～0.8mm, inside diameter D is 45～50mm, be drilled with the gas curtain formation aperture [3] of 16 circumferentially equal sections at the inner surface radial direction of air collecting chamber [2], the aperture that gas curtain forms aperture [3] is 1.5～1.8mm, so that the argon gas that enters from air inlet pipe [1] fully forms ejaculation the aperture [3] from gas curtain after the gathering in air collecting chamber [2], between part [9] face of weld and laser weld mirror [7], form the high pressure gas fluid layer with certain pressure and deflection, intercept splash [10] coup injury that produces when welding and pollute laser weld mirror [7]; Holding ring [4] is installed in the position that the opposite side of air collecting chamber [2] and air inlet pipe [1] are symmetrical; holding ring [4] welds together with air collecting chamber [2]; with hold-down screw [5] holding ring [4] is fixed in the laser welding system [11], protection gas curtain [8] is positioned between laser weld mirror [7] and the splash [10].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186703 CN202684328U (en) | 2011-12-13 | 2012-04-27 | Shielding gas curtain for laser welding |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120522849.7 | 2011-12-13 | ||
| CN201120522849 | 2011-12-13 | ||
| CN 201220186703 CN202684328U (en) | 2011-12-13 | 2012-04-27 | Shielding gas curtain for laser welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202684328U true CN202684328U (en) | 2013-01-23 |
Family
ID=47539999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186703 Expired - Fee Related CN202684328U (en) | 2011-12-13 | 2012-04-27 | Shielding gas curtain for laser welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202684328U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098143A (en) * | 2017-12-31 | 2018-06-01 | 宁波中物东方光电技术有限公司 | A kind of laser welding head of band protection device of air |
| CN111958136A (en) * | 2020-08-10 | 2020-11-20 | 苏州市宏石激光技术有限公司 | Method for preventing laser head pollution |
-
2012
- 2012-04-27 CN CN 201220186703 patent/CN202684328U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098143A (en) * | 2017-12-31 | 2018-06-01 | 宁波中物东方光电技术有限公司 | A kind of laser welding head of band protection device of air |
| CN111958136A (en) * | 2020-08-10 | 2020-11-20 | 苏州市宏石激光技术有限公司 | Method for preventing laser head pollution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105414764B (en) | A kind of connection method manufactured based on laser gain material that synchronously preheating is aided in of TIG electric arcs | |
| CN105643104B (en) | The method for laser welding of accurate control weld penetration | |
| CN107984085B (en) | Laser-ultrasonic hybrid welding method and device for dissimilar metal | |
| CN105665933A (en) | Laser-arc hybrid welding method for Invar die steel | |
| CN107511584A (en) | A kind of shape of a saddle aluminium alloy structure laser welding process method | |
| CN202684328U (en) | Shielding gas curtain for laser welding | |
| CN104384718B (en) | A kind of Ti2AlNb base intermetallic compound dual-beam pulse method for laser welding | |
| CN202506971U (en) | Coaxial water-jet device for laser micromachining on thin-wall tubing | |
| CN108941913A (en) | A kind of efficient laser-MAG compound welding method of slab marine high strength steel | |
| CN105195875A (en) | Welding gun of lockhole effect TIG deep penetration welding | |
| CN103212819A (en) | Coaxial water jet device used for laser micro machining of thin-walled tube | |
| CN106956053B (en) | A kind of vacuum brazing method of titanium alloy pipeline | |
| CN110681972B (en) | Vacuum electron beam welding method for extra-thick plate blank | |
| CN107243694B (en) | A kind of stitch welding of automobile galvanized sheet | |
| CN204094301U (en) | Copper pipe and device for welding aluminium pipe plumb joint in refrigeration plant | |
| CN105364430B (en) | The method for laser welding that a kind of thin plate edge joint synchronously rolls | |
| CN212264824U (en) | Molybdenum-rhenium alloy argon arc welding device and welding machine comprising same | |
| CN205520075U (en) | Laser welding protection device | |
| CN202622207U (en) | Dedicated double C-shaped steel automatic welding device for nuclear power bridge rack | |
| CN104043901B (en) | A kind of stainless steel faucet case weld technique | |
| CN113579533A (en) | Pre-control method for radial precision of electron beam welding structure after blisk welding | |
| CN105618912A (en) | Variable polarity plasma arc welding method for aluminum alloy | |
| CN112518125A (en) | Laser spot welding method | |
| CN204209270U (en) | A kind of Flame Heating Temperature compensator for the long weld seam welding of steel plate | |
| CN220462637U (en) | Laser welding window piece anti-splashing optimizing and protecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20160427 |