CN2633495Y - Coaxle nozzle for laser welding - Google Patents
Coaxle nozzle for laser welding Download PDFInfo
- Publication number
- CN2633495Y CN2633495Y CN 03232405 CN03232405U CN2633495Y CN 2633495 Y CN2633495 Y CN 2633495Y CN 03232405 CN03232405 CN 03232405 CN 03232405 U CN03232405 U CN 03232405U CN 2633495 Y CN2633495 Y CN 2633495Y
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- China
- Prior art keywords
- shower nozzle
- nozzle
- base
- outlet passageway
- laser
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Abstract
The utility model relates to a protective gas conveying machine, in particular to a coaxial nozzle for laser welding belonging to laser material processing and application field, which comprises a base and a spray head, wherein, the centers of the base and the spray head are provided with channels and laser beam can irradiate workpiece through the channel at the center of the nozzle; the nozzle is evenly distributed with oblique protective gas outlet channels along the central axis with the central extending line of each outlet channel intersecting with the central axis of the nozzle at one point. Therefore, protective gas can be evenly conveyed to the central point where laser beam and workpiece interact and diffuses outwards to greatly increase protection area and avoid carrying surrounding air into the interaction area of laser and workpiece, thereby preventing generation of air hole and ensuring outstanding forming of welding seam of workpiece; in addition, new nozzle can be replaced with great convenience without regulating nozzle position, thereby being very convenient in use.
Description
Technical field
The utility model relates to a kind of mechanical device of carrying protective gas, relates in particular to a kind of laser weld coaxial nozzle, belongs to Materialbearbeitung mit Laserlicht and application thereof.
Background technology
In the existing Materialbearbeitung mit Laserlicht, especially in the laser weld, the conveying of protective gas is adopted is will protect pneumatic transmission to go into laser beam incident bundle conduit in a certain angle.The problem that this side-blown protection gas technology exists is: the gas active region that is ejected into the Laser Processing surface of the work from the side is inhomogeneous; and can bring a part of surrounding air into to surface of the work; make that the protection of workpiece face of weld is bad; form many pores; influenced welding quality; and in use needing to regulate meticulously the position of conduit, this is unfavorable for material is carried out the Laser Processing of steady quality ground.
Summary of the invention
It is inhomogeneous that the utility model has overcome the gas active region that is ejected into the Laser Processing surface of the work in the existing side-blown technology from the side; and can bring the defective of portion of air into to surface of the work; a kind of laser weld coaxial nozzle is provided; this coaxial nozzle is transported to laser and workpiece interaction point place equably with protective gas; the shielding outside air enters laser and workpiece interaction point; and make simple, easy to use.
The utility model is achieved in that a kind of laser weld coaxial nozzle, form by base and shower nozzle, base and shower nozzle central authorities have the duct, medium pore canal is used for laser beam to be passed through, and base middle front part medium pore canal is the convex shoulder shape, and the inner duct diameter is less than outer channel diameter, have screw thread on the duct outside, the medium pore canal front portion has the conical gas distribution cavity, and base forward outer surface side has inlet channel, and inlet channel and conical gas distribution cavity connect; The shower nozzle external rear face is the convex shoulder shape, shower nozzle middle part outer surface is a cylindrical shape, the shower nozzle forward outer surface is the end face of projection, convex shoulder place, shower nozzle rear portion has screw thread, threads engaged and sealing with duct outside the base middle front part central authorities, have outlet passageway in the end face of the anterior projection of shower nozzle, outlet passageway connects to the shower nozzle top, gas distribution chamber is formed with the gap of base conical gas distribution cavity in the shower nozzle middle part, the end face of the anterior projection of shower nozzle matches with the base top end face and seals, and outlet passageway and conical gas distribution cavity connect.
Above-mentioned laser weld coaxial nozzle has three or three above outlet passageways at least on the described shower nozzle.
Above-mentioned laser weld coaxial nozzle, described outlet passageway tilts, and outlet passageway center extended line and shower nozzle central shaft intersect at a point.
Above-mentioned laser weld coaxial nozzle, described outlet passageway are that the center evenly distributes with the shower nozzle central shaft.
Nozzle of the present utility model is made up of base and shower nozzle; have the duct at base and shower nozzle central authorities; laser beam is ejected on the workpiece by the nozzle medium pore canal; shower nozzle evenly distributes along the shower nozzle central shaft and protects the gas outlet passageway; outlet passageway is a tilting, and outlet passageway center extended line and shower nozzle central shaft intersect at a point.Protection gas can be transported to laser beam and the interactional central spot of workpiece equably like this; and protection gas will be to external diffusion; increase the area of protection greatly; and avoid surrounding air is brought into laser and workpiece interaction area; help the protection of laser and workpiece active region; the forming of workpiece face of weld does not have pore to produce.The base of coaxial nozzle and shower nozzle separate in addition, when the reflection that is subjected to workpiece material when shower nozzle is damaged, and the shower nozzle that can more renew easily, and do not need to regulate the position of shower nozzle, very easy to use.
Description of drawings
Fig. 1 is a laser weld coaxial nozzle understructure schematic diagram, and Fig. 2 is a laser weld coaxial nozzle nozzle structure schematic diagram, and Fig. 3 is the upward view of Fig. 2.
Among the figure: 1 medium pore canal, 2 inner ducts, 3 outer ducts (being equivalent to nut), 4 conical gas distribution cavity, 5 base top end faces, 6 inlet channels, 7 shower nozzle rear portion convex shoulders, 8 shower nozzles middle part cylindrical shape, 9 shower nozzle front end face, 10 shower nozzle tops, 11 outlet passageways.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of laser weld coaxial nozzle is made up of base and shower nozzle, and base and shower nozzle central authorities have duct 1, and medium pore canal 1 is used for laser beam to be passed through.Base middle front part medium pore canal is the convex shoulder shape, inner duct 2 diameters have screw thread on the duct 3 outside less than outer duct 3 diameters, and the medium pore canal front portion has conical gas distribution cavity 4, base forward outer surface side has inlet channel 6, and inlet channel 6 connects with conical gas distribution cavity 4.The shower nozzle external rear face is a convex shoulder shape 7, and shower nozzle middle part outer surface is a cylindrical shape 8, and the shower nozzle forward outer surface is the end face 9 of projection.Convex shoulder place, shower nozzle rear portion 7 has screw thread, and during assembling, convex shoulder place, shower nozzle rear portion 7 screw threads (being equivalent to bolt) match with the screw thread (being equivalent to nut) in duct 3 outside the base middle front part central authorities and form the back sealing.The end face 9 of the anterior projection of shower nozzle and base top end face 5 seal before matching and combine closely and forming.Gas distribution chamber is formed with the gap of base conical gas distribution cavity 4 in shower nozzle middle part 8, between sealing before and after gas distribution chamber places, have outlet passageway 11 in the end face 9 of the anterior projection of shower nozzle, outlet passageway 11 connects with conical gas distribution cavity 4, and outlet passageway 11 connects to shower nozzle top 10.Protective gas enters into outlet passageway 11 again after the inlet channel 6 of chassis outer side enters gas distribution chamber 4, from 11 ejections of shower nozzle top outlet passageway.Laser beam can be directly from medium pore canal 1 incident of nozzle.
At least have three or three above outlet passageways 11 on the shower nozzle, in the present embodiment be four.Outlet passageway 11 tilts, and outlet passageway 11 center extended lines and shower nozzle central shaft intersect at a point, and outlet passageway 11 is that the center evenly distributes with the shower nozzle central shaft.Protection gas can be transported to laser beam and the interactional central spot of workpiece equably like this, and protection gas will will increase the area of protection, and avoid surrounding air is brought into laser and workpiece interaction area greatly to external diffusion.Because shower nozzle and base are discerptible, the shower nozzle that can more renew easily, and do not need to regulate the position of shower nozzle, very easy to use.
The results showed that when adopting laser weld to carry protection gas to weld with coaxial nozzle, the forming of workpiece face of weld does not have pore to produce, and has solved weld seam transmission side cracking problem simultaneously yet.
The utility model also can be applicable to laser surface heat treatment, laser quenching, and laser cladding, laser spraying etc. utilize high energy laser beam to carry out material connection processing and field of surface treatment; And can be widely used in needs such as other materials welding, material surface processing and adopt gases to protect or utilize occasions such as gas and material generation chemical reaction.
Claims (5)
1. laser weld coaxial nozzle, it is characterized in that this nozzle is made up of base and shower nozzle, base and shower nozzle central authorities have duct (1), medium pore canal (1) is used for laser beam to be passed through, base middle front part medium pore canal is the convex shoulder shape, inner duct (2) diameter is less than outer duct (3) diameter, have screw thread on duct (3) outside, medium pore canal (1) front portion has conical gas distribution cavity (4), base forward outer surface side has inlet channel (6), inlet channel (6) connects with conical gas distribution cavity (4), the shower nozzle external rear face is convex shoulder shape (7), shower nozzle middle part outer surface is cylindrical shape (8), the shower nozzle forward outer surface is the end face (9) of projection, convex shoulder place, shower nozzle rear portion (7) has screw thread, threads engaged and sealing with duct (3) outside the base middle front part central authorities, have outlet passageway (11) in the end face (9) of the anterior projection of shower nozzle, outlet passageway (11) connects to shower nozzle top (10), gas distribution chamber is formed with the gap of base conical gas distribution cavity (4) in shower nozzle middle part (8), the end face (9) of the anterior projection of shower nozzle matches with base top end face (5) and seals, and outlet passageway (11) connects with conical gas distribution cavity (5).
2. laser weld coaxial nozzle according to claim 1 is characterized in that having at least on the shower nozzle three or three above outlet passageways (11).
3. laser weld coaxial nozzle according to claim 1 and 2 is characterized in that outlet passageway (11) tilts, and outlet passageway (11) center extended line and shower nozzle central shaft intersect at a point.
4. laser weld coaxial nozzle according to claim 1 and 2 is characterized in that outlet passageway (11) is that the center evenly distributes with the shower nozzle central shaft.
5. laser weld coaxial nozzle according to claim 3 is characterized in that outlet passageway (11) is that the center evenly distributes with the shower nozzle central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232405 CN2633495Y (en) | 2003-06-20 | 2003-06-20 | Coaxle nozzle for laser welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232405 CN2633495Y (en) | 2003-06-20 | 2003-06-20 | Coaxle nozzle for laser welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2633495Y true CN2633495Y (en) | 2004-08-18 |
Family
ID=34291438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232405 Expired - Lifetime CN2633495Y (en) | 2003-06-20 | 2003-06-20 | Coaxle nozzle for laser welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2633495Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318260B (en) * | 2008-06-25 | 2011-05-25 | 深圳市大族激光科技股份有限公司 | Cover gas blowing device for laser welder head |
| CN102151990A (en) * | 2011-04-01 | 2011-08-17 | 江苏大学 | Rotary laser head auxiliary gas transmission device for laser processing machine tool |
| CN1981976B (en) * | 2005-12-12 | 2012-07-18 | 普雷茨特两合公司 | Laser machining apparatus and its running and controlling methods |
| CN103495802A (en) * | 2013-09-29 | 2014-01-08 | 沈阳化工大学 | Protection device of weld joint scanning welding head slip cover of laser welding machine |
| CN104141130A (en) * | 2014-07-31 | 2014-11-12 | 苏州市华宁机械制造有限公司 | Coaxial nozzle |
| CN109468637A (en) * | 2019-01-08 | 2019-03-15 | 苏州大学 | Laser cladding apparatus and laser cladding forming method |
| CN109794677A (en) * | 2019-02-27 | 2019-05-24 | 大族激光科技产业集团股份有限公司 | Laser soldering device, laser welding head and its protection gas hood |
| CN110480163A (en) * | 2019-09-16 | 2019-11-22 | 中航宝胜电气股份有限公司 | A kind of arc welding gun head |
-
2003
- 2003-06-20 CN CN 03232405 patent/CN2633495Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981976B (en) * | 2005-12-12 | 2012-07-18 | 普雷茨特两合公司 | Laser machining apparatus and its running and controlling methods |
| CN101318260B (en) * | 2008-06-25 | 2011-05-25 | 深圳市大族激光科技股份有限公司 | Cover gas blowing device for laser welder head |
| CN102151990A (en) * | 2011-04-01 | 2011-08-17 | 江苏大学 | Rotary laser head auxiliary gas transmission device for laser processing machine tool |
| CN102151990B (en) * | 2011-04-01 | 2013-11-20 | 江苏大学 | Rotary laser head auxiliary gas transmission device for laser processing machine tool |
| CN103495802A (en) * | 2013-09-29 | 2014-01-08 | 沈阳化工大学 | Protection device of weld joint scanning welding head slip cover of laser welding machine |
| CN104141130A (en) * | 2014-07-31 | 2014-11-12 | 苏州市华宁机械制造有限公司 | Coaxial nozzle |
| CN109468637A (en) * | 2019-01-08 | 2019-03-15 | 苏州大学 | Laser cladding apparatus and laser cladding forming method |
| CN109468637B (en) * | 2019-01-08 | 2021-04-16 | 苏州大学 | Laser cladding device and laser cladding forming method |
| CN109794677A (en) * | 2019-02-27 | 2019-05-24 | 大族激光科技产业集团股份有限公司 | Laser soldering device, laser welding head and its protection gas hood |
| CN110480163A (en) * | 2019-09-16 | 2019-11-22 | 中航宝胜电气股份有限公司 | A kind of arc welding gun head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130620 Granted publication date: 20040818 |