CN112719591A - Laser wire-adding welding device - Google Patents
Laser wire-adding welding device Download PDFInfo
- Publication number
- CN112719591A CN112719591A CN202011629599.7A CN202011629599A CN112719591A CN 112719591 A CN112719591 A CN 112719591A CN 202011629599 A CN202011629599 A CN 202011629599A CN 112719591 A CN112719591 A CN 112719591A
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- China
- Prior art keywords
- laser
- wire
- welding gun
- focusing lens
- tube
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 100
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006467 substitution reaction 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
-
- 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser wire-adding welding machine which comprises a laser welding gun and a laser welding gun nozzle arranged at the end of the laser welding gun, wherein the laser welding gun comprises a laser generator and a laser channel pipe, the head of the laser generator is provided with a focusing lens, one end of the laser welding gun nozzle is communicated with the laser channel pipe, the other end of the laser welding gun nozzle is provided with a deep through hole, and the deep through hole is a narrow rectangular through hole. According to the invention, under the condition that the laser light source of the laser generator is not influenced, the rectangular through hole is arranged, so that particles exploded by welding wires during laser welding can be reduced to the maximum degree to be shot into the laser channel tube with the laser welding gun, and the deep through hole is arranged, so that the travel distance of the exploded particles in the laser welding nozzle is further prolonged, the exploded particles are more difficult to enter the laser channel tube, and the effect of protecting a focus lens is achieved.
Description
Technical Field
The invention relates to the field of laser welding equipment, in particular to a laser wire-adding welding machine.
Background
In laser welding, high-energy laser pulses are used for locally heating materials in micro-areas, energy radiated by laser is diffused into the materials through heat conduction, and the materials are melted to form a specific molten pool. The novel welding mode is mainly used for welding thin-wall materials and precise parts, spot welding, butt welding, stitch welding, seal welding and the like can be realized, the depth-width ratio is high, the width of a welding seam is small, a heat affected zone is small, deformation is small, the welding speed is high, the welding seam is flat and attractive, treatment is not needed or only simple treatment is needed after welding, the welding seam is high in quality, free of air holes, capable of being accurately controlled, small in focusing light spot, high in positioning accuracy and easy to realize automation.
When the existing laser welding machine carries out laser welding, particles after a welding wire bursts can be adhered to a focus lens, the high temperature of the particles melts an optical film on the focus lens, the particles are heated by laser light energy at high temperature continuously along with the continuation of laser operation, the temperature of the particles is increased to continuously melt a polishing film on the focus lens and transparent glass of the focus lens, the high laser intensity is continuously weakened, and therefore the laser welding intensity is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a laser wire-adding welding machine, which prevents particles generated after a welding wire bursts from entering a laser channel tube to damage a focusing lens by arranging a thin and narrow rectangular deep through hole.
In order to solve the technical problem, the invention provides a laser wire welding machine which comprises a laser welding gun and a laser welding gun nozzle arranged at the end of the laser welding gun, wherein the laser welding gun comprises a laser generator and a laser channel tube, a focusing lens is arranged at the head of the laser generator, one end of the laser welding gun nozzle is communicated with the laser channel tube, the other end of the laser welding gun nozzle is provided with a deep through hole, and the deep through hole is a narrow rectangular through hole.
In a preferred embodiment of the present invention, the connecting end of the laser welding nozzle and the laser channel tube is provided with a circular boss, the circular boss is inserted into the laser channel tube, and the circular boss is in clearance fit connection with the laser channel tube.
In a preferred embodiment of the present invention, the width of the rectangular through hole is 2 to 5 mm.
In a preferred embodiment of the invention, the laser welding gun further comprises a spiral channel which is arranged in the tube wall of the laser channel tube and extends along the tube wall direction, one end of the spiral channel is communicated with a gas guide tube arranged outside the laser channel tube, and the other end of the spiral channel is communicated with the laser welding gun nozzle.
In a preferred embodiment of the present invention, a plurality of spiral channels are disposed in a tube wall of the laser channel tube, and the plurality of spiral channels are not communicated with each other.
In a preferred embodiment of the present invention, the focusing lens is detachably mounted on the head of the laser generator, a mounting hole is formed on one side of the head of the laser generator, a focusing lens holder is inserted into the mounting hole, the focusing lens is placed in the focusing lens holder, and the focusing lens holder is fixed on the laser generator by screw locking.
In a preferred embodiment of the present invention, the focusing lens frame further comprises a lens cover disposed thereon, and the focusing lens is disposed on the lens cover.
In a preferred embodiment of the present invention, the laser channel tube is further provided with a wire feeding frame outside, the wire feeding frame is provided with a wire feeding tube, and a welding wire passes through the wire feeding tube.
The invention has the beneficial effects that:
according to the invention, the laser welding nozzle is additionally arranged at the end of the original laser welding gun, the narrow rectangular deep through hole is formed in the laser welding nozzle, the original larger circular through hole is changed into the narrow rectangular deep through hole, under the condition of not influencing the laser light source of the laser generator, the rectangular through hole can reduce the particles of welding wire explosion during laser welding to the maximum degree to enter the laser channel tube with the laser welding gun, and the deep through hole is formed, so that the travel distance of the exploded particles in the laser welding nozzle is further prolonged, the exploded particles are more difficult to enter the laser channel tube, and the effect of protecting a focusing lens is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the laser wire bonding machine of the present invention;
FIG. 2 is a schematic view of the construction of a laser welding nozzle of the present invention;
FIG. 3 is a schematic diagram of the structure of the spiral channel of the present invention.
FIG. 4 is an exploded view of the laser wire bonding machine of the present invention;
the reference numbers in the figures illustrate: 1. a laser generator; 2. a laser channel tube; 3. laser welding a gun nozzle; 31. a deep via; 32. a circular boss; 4. a focusing lens; 5. a wire feeding frame; 6. a wire feeding pipe; 7. welding wires; 8. a spiral channel; 9. an air duct; 10. mounting holes; 11. a focusing lens frame; 12. a lens housing; 13. and (4) screws.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1-4, an embodiment of the laser wire-feeding welding machine of the present invention includes a laser welding gun and a laser welding gun nozzle 3 disposed at an end of the laser welding gun, the laser welding gun includes a laser generator 1 and a laser channel tube 2, a focusing lens 4 is disposed at a head of the laser generator 3, one end of the laser welding gun nozzle is communicated with the laser channel tube 2, a deep through hole 31 is disposed at the other end of the laser welding gun nozzle 3, the deep through hole 31 is a narrow rectangular through hole, a wire feeding frame 5 is further mounted outside the laser channel tube 2, a wire feeding tube 6 is disposed on the wire feeding frame 5, a welding wire 7 penetrates through the wire feeding tube 6, the welding wire 7 is fed below the laser welding gun nozzle 3 through the wire feeding frame 5 and the wire feeding tube 6, and laser welding is achieved below the laser welding gun nozzle 3.
This embodiment can install laser welding mouth 3 additional at original laser welding rifle end, the convenience is reequiped current laser welding machine, thin narrow rectangle through-hole has been seted up on laser welding mouth 3, change original great circular through-hole into thin narrow rectangle through-hole, under the condition that does not influence laser generator laser light source, rectangle through-hole can be during the granule of welding wire explosion jets into laser welding rifle's laser channel pipe 2 when laser welding by at utmost, and set up deep through-hole 31, further prolong the stroke distance of the granule of explosion in laser welding mouth 3, make the granule of explosion more difficult enter into laser channel pipe 2, reach the effect of protection focus lens 4.
In this embodiment, the connecting end of laser welding mouth 3 and laser channel pipe 2 is provided with ring boss 32, ring boss 32 inserts in laser channel pipe 2, ring boss 32 is connected with laser channel pipe 2 clearance fit, blocks ring boss 32 in laser channel pipe 2, guarantees when normal work, and laser welding mouth 3 and laser channel pipe 2 fixed connection can not drop, also can take out laser welding mouth 3 from laser channel pipe 2 when needs.
In other embodiments, in order to detachably connect the laser welding nozzle 3 and the laser passage pipe 2, a thread may be formed outside the annular boss 32, so that the laser welding nozzle 3 and the laser passage pipe 2 are connected by the thread.
Specifically, the width of rectangle through-hole is 2 ~ 5mm, under the condition of the light source of guaranteeing not to influence laser generator 1 and sending, reduces the width of rectangle through-hole as far as possible.
Referring to fig. 3, in this embodiment, a spiral channel 8 extending along the direction of the tube wall is disposed in the tube wall of the laser channel tube 2, the spiral channel 8 is disposed in the tube wall, one end of the spiral channel 8 is communicated with an air duct 9 disposed outside the laser channel tube 2, the other end of the spiral channel 8 is communicated with the laser welding gun nozzle 3, the outer end of the air duct 9 is connected with an air source, a high-flow gas is introduced into the air duct 9, the high-flow gas reaches the laser welding gun nozzle 3 through the spiral channel 8, and is blown out from a rectangular through hole of the laser welding gun nozzle 3, and the high-flow gas is utilized to flush out particles entering the laser welding gun nozzle 3 during laser welding to the greatest extent, so as to further protect the focusing lens 4.
Specifically, a circle of spiral channels 8 surrounding the tube wall is arranged in the laser channel tube 2, the spiral channels 8 can be communicated with a horizontal gas guide tube 9, and the spiral channels 8 can enhance the pressure of the strong flow gas.
In this embodiment, be provided with 4 helical passage 8 in the pipe wall of laser channel pipe 2, each other do not communicate between 4 helical passage 8, every helical passage 8 all communicates outward to have the air duct 9 of setting outside laser channel pipe 2, further strengthens the pressure of high current gas through setting up 4 helical passage 8.
The high light intensity of the focusing lens 4 is ensured by periodically replacing the focusing lens 4 used for a long time, as shown in fig. 4, the focusing lens 4 is detachably mounted at the head of a laser generator 1, a mounting hole 10 is formed in one side of the head of the laser generator 1, a focusing lens frame 11 is inserted into the mounting hole 10, a lens cover 12 is arranged on the focusing lens frame 11, the focusing lens 4 is arranged on the lens cover 12, the focusing lens frame 11 can slide in the mounting hole 10, the focusing lens frame 11 is rapidly replaced by inserting and pulling the focusing lens frame 11 into the mounting hole 10, the focusing lens frame 11 is locked and fixed on the laser generator 1 through a screw 13, the screw 13 is screwed when the laser generator 1 works, so that the focusing lens frame 11 is locked and fixed, and when the focusing lens 4 needs to be replaced, the screw 13 is unscrewed, the focusing lens holder 11 is pulled out from the mounting hole 10, and the focusing lens 4 on the focusing lens holder 11 is replaced.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. The laser wire-adding welding machine is characterized by comprising a laser welding gun and a laser welding gun nozzle arranged at the end of the laser welding gun, wherein the laser welding gun comprises a laser generator and a laser channel pipe, the head of the laser generator is provided with a focusing lens, one end of the laser welding gun nozzle is communicated with the laser channel pipe, the other end of the laser welding gun nozzle is provided with a deep through hole, and the deep through hole is a thin and narrow rectangular through hole.
2. The laser wire-feeding welding machine as claimed in claim 1, wherein a circular boss is arranged at the connecting end of the laser welding nozzle and the laser channel tube, the circular boss is inserted into the laser channel tube, and the circular boss is in clearance fit connection with the laser channel tube.
3. The laser wire-feeding welding machine according to claim 1, wherein the width of the rectangular through hole is 2-5 mm.
4. The laser wire-adding welding machine according to claim 1, wherein a spiral channel extending along the direction of the tube wall is arranged in the tube wall of the laser channel tube, one end of the spiral channel is communicated with a gas guide tube arranged outside the laser channel tube, and the other end of the spiral channel is communicated with a laser welding gun nozzle.
5. The laser wire-feeding welding machine of claim 3, wherein a plurality of spiral channels are arranged in the tube wall of the laser channel tube, and the spiral channels are not communicated with each other.
6. The laser wire-adding welding machine as claimed in claim 1, wherein the focusing lens is detachably mounted on the head of the laser generator, a mounting hole is formed on one side of the head of the laser generator, a focusing lens holder is inserted into the mounting hole, a focusing lens is placed in the focusing lens holder, and the focusing lens holder is fixed on the laser generator by screw locking.
7. The laser wire bonding machine of claim 6 wherein the focusing lens frame is provided with a lens cover, and the focusing lens is provided on the lens cover.
8. The laser wire-feeding welding machine as claimed in claim 1, wherein a wire feeding frame is further installed outside the laser channel tube, a wire feeding tube is arranged on the wire feeding frame, and a welding wire is arranged in the wire feeding tube in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629599.7A CN112719591A (en) | 2020-12-30 | 2020-12-30 | Laser wire-adding welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629599.7A CN112719591A (en) | 2020-12-30 | 2020-12-30 | Laser wire-adding welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112719591A true CN112719591A (en) | 2021-04-30 |
Family
ID=75608229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011629599.7A Pending CN112719591A (en) | 2020-12-30 | 2020-12-30 | Laser wire-adding welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112719591A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523544A (en) * | 2021-08-24 | 2021-10-22 | 深圳市睿利汉深激光设备有限公司 | Single-vibrating-mirror type multipurpose optical fiber welding handheld gun |
| CN114346486A (en) * | 2021-12-28 | 2022-04-15 | 苏州创鑫激光科技有限公司 | Gun barrel seat for laser processing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5756962A (en) * | 1994-08-02 | 1998-05-26 | Mcneil - Ppc, Inc. | Laser-processing head for laser processing apparatus |
| CN102672348A (en) * | 2012-05-15 | 2012-09-19 | 湖南大学 | Device for changing focusing lens of laser cutting head |
| CN102851665A (en) * | 2012-08-31 | 2013-01-02 | 张家港市和昊激光科技有限公司 | Nozzle for laser cladding |
| CN108422080A (en) * | 2018-04-27 | 2018-08-21 | 聊城市开发区精科激光设备有限公司 | A kind of efficient laser engraving head condenser lens more changing device |
| CN109070276A (en) * | 2016-04-14 | 2018-12-21 | 等离子体处理有限公司 | Operation method for equipment and equipment by laser beam workpieces processing surface |
| CN215280376U (en) * | 2020-12-30 | 2021-12-24 | 苏州伊斯丹实业有限公司 | Laser wire-adding welding device |
-
2020
- 2020-12-30 CN CN202011629599.7A patent/CN112719591A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5756962A (en) * | 1994-08-02 | 1998-05-26 | Mcneil - Ppc, Inc. | Laser-processing head for laser processing apparatus |
| CN102672348A (en) * | 2012-05-15 | 2012-09-19 | 湖南大学 | Device for changing focusing lens of laser cutting head |
| CN102851665A (en) * | 2012-08-31 | 2013-01-02 | 张家港市和昊激光科技有限公司 | Nozzle for laser cladding |
| CN109070276A (en) * | 2016-04-14 | 2018-12-21 | 等离子体处理有限公司 | Operation method for equipment and equipment by laser beam workpieces processing surface |
| CN108422080A (en) * | 2018-04-27 | 2018-08-21 | 聊城市开发区精科激光设备有限公司 | A kind of efficient laser engraving head condenser lens more changing device |
| CN215280376U (en) * | 2020-12-30 | 2021-12-24 | 苏州伊斯丹实业有限公司 | Laser wire-adding welding device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523544A (en) * | 2021-08-24 | 2021-10-22 | 深圳市睿利汉深激光设备有限公司 | Single-vibrating-mirror type multipurpose optical fiber welding handheld gun |
| CN114346486A (en) * | 2021-12-28 | 2022-04-15 | 苏州创鑫激光科技有限公司 | Gun barrel seat for laser processing equipment |
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