CN101161398A - A high power laser welding head - Google Patents
A high power laser welding head Download PDFInfo
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- CN101161398A CN101161398A CN 200610047991 CN200610047991A CN101161398A CN 101161398 A CN101161398 A CN 101161398A CN 200610047991 CN200610047991 CN 200610047991 CN 200610047991 A CN200610047991 A CN 200610047991A CN 101161398 A CN101161398 A CN 101161398A
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- interior cover
- air
- overcoat
- joint
- laser welding
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Abstract
A high-power laser welding head includes a guiding plate, an outer cover, an inner cover and a joint, the circumference of the guiding plate is arranged with screw thread which is connected with the sole cover of the outer cover, the center of the guiding plate is arranged with a light-pervious hole, an inner air ring and an outer air ring, the inner air ring is connected with the outer air ring with an air course and is butt-jointed with the lower end of the air course of the inner cover, the outer air ring is communicated with one end of the nozzle and the other end of the nozzle is communicated with the light-pervious hole. The present invention has the advantages of reasonable designing, compact structure, convenient installing, little maintenance amount, simple operation, small heating effect of the laser welding head as the forced cooling of air cooling and water cooling are simultaneously provided, adapting for the long-time work, insulating the welding zone from the outer air as the strong-unreactive shielding gas is sprayed during operation, smooth welding, small welding seam width, small heat affected zone, high welding efficiency, good effect, completing the fine welding which can not realized in the traditional technique, and wide adopting industries, the invention can be adopted in various industries of machine manufacturing, rubber plastic product, petroleum chemical industry, watercraft and submarine manufacturing, water conservancy and electric power, aviation and spaceflight, apparatus and instrument, communication and artwork, etc.
Description
(1) technical field
The present invention relates to a kind of parts of laser-beam welding machine, what be specifically related to is a kind of high power laser welding head.
(2) background technology
Along with science and technology development, laser technology is in the superiority that has shown it aspect the processing technologys such as welding, cutting day by day in recent years, welding bead is level and smooth, weld bond quality exquisiteness, the height of integral solder quality almost is that other welding methods are incomparable, therefore, laser weld and cutting technique are more and more admitted and are adopted by people.
Yet high power laser welding tipping is at present put and is all existed certain shortcoming and deficiency, and main is exactly that laser welding head is nearer because of the focus of distance laser, and long-time high temperature near molten flame is very easily burnt laser welding head, and has lost the ability of welding.
The subject matter that present normally used laser welding head exists is: laser directly is incident upon the vertical ascension of high temperature ion cloud that forms because of ionization on the workpiece to laser camera lens and the strong laser reflection of surface of the work, causes the laser camera lens to damage and has lost due performance.Even more serious is in the process of welding, and the welding slag of high temperature splashes everywhere, very easily collapses again, is sprayed onto on the camera lens, and expensive laser camera lens is scrapped.
Therefore enterprise wish to have a kind of can be safety, long time continuous working, welding quality is again with the laser welding head of abundant assurance.
(3) summary of the invention
The present invention provides a kind of for the problem that solves present a kind of high power laser welding head and exist and shortcoming and can work continuously, water-cooled, air-cooled parallel simultaneously, and holding concurrently can the powerful a kind of high power laser welding head that sprays the inertia shroud gas.
The technical scheme that adopts is:
A kind of high power laser welding head comprises deflector, overcoat, interior cover, joint, and its structural feature is: described deflector is positioned at the below of overcoat, and is connected with the bottom thread of overcoat.The center of deflector is provided with a loophole, is positioned at the loophole outside and is respectively equipped with compression ring and outer compression ring, is connected by a plurality of gas circuits between interior compression ring and the outer compression ring.Air flue lower end in interior compression ring and the interior cover connects, and outer compression ring is communicated with an end of a plurality of nozzles, and the other end of nozzle is communicated to the bottom of loophole.
Described overcoat center is provided with a centre bore, is provided with at overcoat middle part that cooling water enters the hole and cooling water portals, and the cooling water circulating slot into and out of hole and interior cover of cooling water connects.Portion is provided with inertia shroud gas air admission hole on the coat, and the air flue ring of inertia shroud gas air admission hole and interior cover connects, and overcoat is connected with interior external threading.
The center of cover is provided with laser hole in described, and the top of interior cover is provided with the air flue ring, and the air flue that is provided with in this air flue ring and the interior cover is connected, and the bottom of interior cover is provided with a cooling water circulating slot.In put end face and be provided with an air-cooled groove, this air-cooled groove engages with cooling air groove on the joint.
Described joint center is provided with light hole, and the end face of joint is provided with a cooling air groove, is respectively equipped with cooling air import and cooling air outlet on the bottom surface of cooling air groove.
Middle part, the bottom of cover are provided with seal groove in above-mentioned.
Bottom, the middle part of above-mentioned outer casing inner wall are respectively equipped with seal groove, and respectively with interior cover in, corresponding joining of seal groove of bottom, be equiped with sealing ring in the seal groove.The upper surface of overcoat is provided with seal groove, is equiped with sealing ring in the seal groove.
Air flue in the above-mentioned interior cover is parallel with its wall, and extends downward bottom surface.
A plurality of screws are set on the end face of above-mentioned joint, and joint is fixedlyed connected with interior cover.
A kind of key work of high power laser welding head:
1, the assembling of soldering tip, deflector are sleeved on the bottom of overcoat, and with being threaded, interior cover insert in the centre bore of overcoat and in the upper end with being threaded, on the contact-making surface of deflector and inside and outside cover, apply one deck heat-conducting silicone grease.Joint is an annular, is provided with two location key seats in the annulus outside, and two location key seat correspondences are at the two ends of same diameter, and the thickness difference of annulus by the semicircular ring thin thickness of an end location key seat, leans on the semicircular ring thickness of other end location key seat thick; In the upper surface thickness of cover different equally, the position that the thick position of joint annulus and the upper surface thickness of interior cover are thick aligns with screw and is connected.The thin position of joint with in put position that end face approaches and install packing ring additional and be connected with screw.
2, working procedure: complete machine has interlock, must be before the welding with cooling water, cooling air and inertia shroud gas are served under the condition that makes laser welding head be in trouble free service fully, at this moment laser generator can be worked, laser is incident upon the commissure of workpiece after by lens focus, at this moment can weld.
3, main points: the big inertia shroud gas of one pressure height, flow from the nozzle ejection to the workpiece on, around weld seam, filling inert gas, make the workpiece of fusion not reach air, avoided the generation of weld bond oxidative phenomena.The projection of laser makes the workpiece local temperature up to degree up to ten thousand, and then make air ionization produce a large amount of ion clouds, the ion cloud of high temperature is to diffusion all around, partly ion cloud can vertical ascension arrive camera lens, will damage equipment, yet because of laser welding system has the injection of the inertia shroud gas of hyperbaric atmosphere amount, successful prevention the ion cloud vertical proliferation.Weldering flower splashes in the process of welding, and this is the welding slag that occurs with the Mars state, is splashed to that unquestionable meeting is scrapped camera lens on the camera lens.
For the high power laser plumb joint, there is the injection of the inertia shroud gas of high air blast to form one barrier naturally and hindered welding slag and directly splash camera lens, stoped the vertical proliferation of high temperature ion cloud, shield air and prevented oxidation.
Be coated with the last layer heat-conducting silicone grease when being connected installing on the contact-making surface of deflector and overcoat, interior cover, the high temperature width of cloth around the weld seam be mapped to deflector through heat-conducting silicone grease be delivered to rapidly overcoat and in put, at this moment the continuous cooling water cooling water circulating slot of constantly flowing through has been taken away heat, cooled off soldering tip, water flows out from coolant outlet, has guaranteed that further laser welding head is in the normal temperature state always in the process of whole work.
Compressed air enters from the cooling air import of joint setting, because of the air-cooled groove of joint cooling air groove and interior cover is interlocked, at this moment cooling air has formed the cloth of gas endlessly as waterfall to external diffusion on the contact-making surface of joint and interior cover, thereby further prevention a small amount of ion cloud that may sporadicly fly out from laser hole marches on towards the tendency of camera lens.
Entire work process makes under the condition of work that laser welding head is in the normal state all the time, has guaranteed welding quality, has prolonged the service life of laser welding head, has reached the purpose of long time continuous working.
The present invention is reasonable in design, compact conformation, easy for installation, maintenance is little, simple to operate, air-cooled because of having simultaneously, the pressure cooling that water-cooled is carried out, it is little that laser welding head is influenced by heat, suitable working long hours, there is strong inertia shroud gas ejection that weld zone and extraneous air are isolated during work, weld smooth, weld width is little, the welding efficiency height, effective, can finish the precision welding that traditional handicraft can't realize, it is wide to be suitable for industry, can be applicable to machine-building, the rubber plastic goods, petrochemical industry, the boats and ships submarine is made, hydraulic and electric engineering, Aero-Space, instrument and meter, communication, all trades and professions such as handicraft.
(4) description of drawings
Fig. 1 is an embodiment of the invention structural representation.
Fig. 2 is the deflector front view.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the overcoat sectional front view.
Fig. 5 is the side view of Fig. 4.
Fig. 6 is interior cover sectional front view.
Fig. 7 is the side view of Fig. 6.
Fig. 8 is the joint front view.
Fig. 9 is Fig. 8 side view.
(5) specific embodiment
Embodiment
A kind of high power laser welding head comprises deflector 1, overcoat 2, interior cover 3, joint 4; Deflector 1 is a disc, and deflector 1 center is provided with a loophole 9, is positioned at loophole 9 outsides and is provided with compression ring 10 and outer compression ring 11, and air flue 27 lower ends that are provided with in the wall of interior compression ring 10 and interior cover 3 connect.
Convex edge 6 is provided with internal thread 7 around the disc deflector 1, and the external screw thread 15 that is provided with overcoat 2 lower ends is threaded; Be provided with plane 8 between the outer compression ring 11 of deflector 1 and the disk convex edge 6, last plane 8 contacts with the bottom surface 22 of overcoat 2, interior cover 3, and applies one deck heat-conducting silicone grease on contact-making surface, makes heat transference efficiency strengthen the cooling effect of the laser welding head of being more convenient for.
The top of overcoat 2 is provided with internal thread 16 and is threaded with the external screw thread 28 that interior cover 3 tops are provided with.
In cover 3 middle part and bottom be provided with annular seal groove 23, annular seal groove 23 respectively with overcoat 2 in, corresponding respectively joining of seal groove 17 of being provided with of bottom, and install sealing ring 5, the seal groove 17 that the upper surface of overcoat 2 is provided with is also installed sealing ring 5.
The light hole 30 that laser after the focusing is provided with from joint 4 centers is injected, and through the laser hole 21 that interior cover 3 is provided with at the center, through the centre bore 20 of the center of overcoat 2 setting, the loophole 9 that is provided with from deflector 1 center projects on the weld bond of workpiece to be welded at last again.
That air flow and the inertia shroud gas that certain pressure arranged are provided with from overcoat 2 tops and two inertia shroud gas air admission holes 14 enter, inertia shroud gas air admission hole 14 connects with the air flue ring 24 of interior cover 3, air flue ring 24 is connected with the air flue 27 of setting in interior cover 3 walls, the parallel bottom surface 22 that extends downward of air flue 27 with wall, interior compression ring 10 on the lower end of air flue 27 and the deflector 1 connects, be communicated with four gas circuits 12 that are mutually 90 ° between interior compression ring 10 and the outer compression ring 11, two ends that are positioned at the nozzle 13 at outer compression ring 11 diameter two ends are communicated with outer compression ring 11, the other end of nozzle 13 is communicated to the bottom of loophole 9, and the inertia shroud gas just is ejected on the workpiece to be welded from nozzle 13 always.
Be provided with in the both sides of the same diameter in the middle part of overcoat 2 that cooling water enters hole 18 and cooling water portals 19, be positioned at cover 3 bottoms and be provided with a cooling water circulating slot 26, cooling water advances hole 18 and cooling water and portals and 19 connect with the cooling water circulating slot 26 of interior cover 3, be used for the cooling water of cooling laser plumb joint, enter hole 18 from cooling water and enter, behind cooling water circulating slot 26, portal and 19 flow out from cooling water.
On the thick semicircular ring of joint 4, semicircular arc cooling air groove 31 is set, cooling air import 32 and cooling air outlet 33 is set respectively on the radial direction of cooling air groove 31 bottom surfaces, and is connected with cooling air groove 31.In cover 3 upper surface 25 the air-cooled groove 34 of a semicircular arc be housed engage with cooling air groove 31 on the joint 4, compressed air flows to through cooling air groove 31 and air-cooled groove 34 from cooling air outlet 14 outflows from cooling air import 32.
Claims (5)
1. a high power laser welding head comprises deflector (1), overcoat (2), interior cover (3), joint (4), it is characterized in that:
A, described deflector (1) are positioned at the below of overcoat (2), and be connected with the bottom thread of overcoat (2), the center of deflector (1) is provided with a loophole (9), the outside that is positioned at loophole (9) is respectively equipped with compression ring (10) and outer compression ring (11), be communicated with by a plurality of gas circuits (12) between interior compression ring (10) and the outer compression ring (11), air flue (27) lower end in interior compression ring (10) and the interior cover (3) connects, outer compression ring (11) is communicated with an end of a plurality of nozzles (13), and the other end of nozzle (13) is communicated to the bottom of loophole (9);
The center of B, described overcoat (2) is provided with a centre bore (20), cooling water is set at the middle part of overcoat (2) advances hole (18) and cooling water portal (19), (18), (19) connect with the cooling water circulating slot (26) of interior cover (3) cooling water into and out of the hole, on the top of overcoat (2) inertia shroud gas air admission hole (14) is set, inertia shroud gas air admission hole (14) connects with the air flue ring (24) of interior cover (3), and overcoat (2) is threaded with interior cover (3);
The center of C, described interior cover (3) is provided with laser hole (21), and the top of interior cover (3) is provided with air flue ring (24), and this air flue ring (24) is connected with the air flue (27) of setting in the interior cover (3), and the bottom of interior cover (3) is provided with a cooling water circulating slot (26); Upper surface (25) is provided with an air-cooled groove (34), and this air-cooled groove (34) engages with cooling air groove (31) on the joint (4);
The center of D, described joint (4) is provided with light hole (30), and the end face of joint (4) is provided with a cooling air groove (31), is respectively equipped with cooling water inlet (32) and coolant outlet (33) on the bottom surface of cooling air groove (31).
2. a kind of high power laser welding head according to claim 1 is characterized in that the middle part and the bottom of described interior cover (3) is provided with seal groove (23).
3. a kind of high power laser welding head according to claim 1, it is characterized in that described overcoat (2) inwall in, the bottom is provided with seal groove (17), and respectively with interior cover (3) in, corresponding joining of seal groove (23) of bottom, be equiped with sealing ring (5) in the seal groove (23); The upper surface of overcoat (2) is provided with seal groove (17), and sealing ring (5) is housed in the seal groove (17).
4. a kind of high power laser welding head according to claim 1 is characterized in that the air flue (27) in the described interior cover is parallel with its wall, and extends downward bottom surface (22).
5. a kind of high power laser welding head according to claim 1 is characterized in that on the end face of described joint (4) a plurality of screws being set, and joint (4) is fixedlyed connected with interior cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610047991 CN100525985C (en) | 2006-10-12 | 2006-10-12 | A high power laser welding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610047991 CN100525985C (en) | 2006-10-12 | 2006-10-12 | A high power laser welding head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101161398A true CN101161398A (en) | 2008-04-16 |
| CN100525985C CN100525985C (en) | 2009-08-12 |
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ID=39296423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610047991 Expired - Fee Related CN100525985C (en) | 2006-10-12 | 2006-10-12 | A high power laser welding head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100525985C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371433A (en) * | 2011-11-21 | 2012-03-14 | 苏州吉矽精密科技有限公司 | Laser cutting head nozzle device |
| CN110430961A (en) * | 2017-03-17 | 2019-11-08 | 株式会社达谊恒 | Sensor device is used in welding |
| CN111745307A (en) * | 2020-07-07 | 2020-10-09 | 周鹏 | Physical air-cooling heat dissipation device based on laser cutting equipment head |
| CN112756810A (en) * | 2021-01-18 | 2021-05-07 | 奔腾激光(温州)有限公司 | Cutting head water-cooling forced air cooling hybrid cooling device |
| CN113649718A (en) * | 2021-08-30 | 2021-11-16 | 深圳市百柔新材料技术有限公司 | Protective lens cone for laser emergent head |
-
2006
- 2006-10-12 CN CN 200610047991 patent/CN100525985C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371433A (en) * | 2011-11-21 | 2012-03-14 | 苏州吉矽精密科技有限公司 | Laser cutting head nozzle device |
| CN110430961A (en) * | 2017-03-17 | 2019-11-08 | 株式会社达谊恒 | Sensor device is used in welding |
| CN111745307A (en) * | 2020-07-07 | 2020-10-09 | 周鹏 | Physical air-cooling heat dissipation device based on laser cutting equipment head |
| CN112756810A (en) * | 2021-01-18 | 2021-05-07 | 奔腾激光(温州)有限公司 | Cutting head water-cooling forced air cooling hybrid cooling device |
| CN112756810B (en) * | 2021-01-18 | 2022-08-26 | 奔腾激光(浙江)股份有限公司 | Cutting head water-cooling forced air cooling hybrid cooling device |
| CN113649718A (en) * | 2021-08-30 | 2021-11-16 | 深圳市百柔新材料技术有限公司 | Protective lens cone for laser emergent head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100525985C (en) | 2009-08-12 |
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Granted publication date: 20090812 Termination date: 20121012 |