CN208961239U - For rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus - Google Patents

For rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus Download PDF

Info

Publication number
CN208961239U
CN208961239U CN201821249729.2U CN201821249729U CN208961239U CN 208961239 U CN208961239 U CN 208961239U CN 201821249729 U CN201821249729 U CN 201821249729U CN 208961239 U CN208961239 U CN 208961239U
Authority
CN
China
Prior art keywords
laser
laser beam
welding
instrument
power laser
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.)
Active
Application number
CN201821249729.2U
Other languages
Chinese (zh)
Inventor
王翔
姚汪兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Guoxuan Battery Co Ltd
Original Assignee
Nanjing Guoxuan Battery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Guoxuan Battery Co Ltd filed Critical Nanjing Guoxuan Battery Co Ltd
Priority to CN201821249729.2U priority Critical patent/CN208961239U/en
Application granted granted Critical
Publication of CN208961239U publication Critical patent/CN208961239U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses one kind for rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus, comprising: low-power laser transmission fiber, high-power laser transmission optical fiber, the first fixed module, the second fixed module, laser alignment focus instrument and recombination laser head;Low-power laser transmission fiber is fixed on laser alignment by the first fixed module and focuses on instrument, high-power laser transmission optical fiber is fixed on laser alignment by the second fixed module and focuses on instrument, and low-power laser transmission fiber and high-power laser transmission optical fiber are respectively positioned on the same end that laser alignment focuses instrument, recombination laser head is mounted on laser alignment and focuses instrument far from low-power laser transmission fiber and high-power laser transmission optical fiber one end.The defects of the utility model greatly improves welding quality, eliminates the fried point generated in welding process, blasting gelatine, stomata incomplete fusion.

Description

For rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus
Technical field
The utility model relates to technical field of lithium ion, more particularly, to rectangular lithium ion battery top cover and aluminum hull Double laser beam composite welding apparatus.
Background technique
With the fast development of lithium ion battery industry, laser is applied to lithium ion battery and produced by more and more enterprises In the middle.Rectangular lithium ion battery needs that full sealing mouth will be carried out between battery cap and aluminum hull in process of production, applies to Reached set technological standards when high energy laser is welded in weld strength, but in process of production when be commonly encountered The fried point of weld seam and blasting gelatine problem scrapped and reworked processing expense so that generating biggish cost in production process.
Utility model content
For solve background technique present in technical problem, the utility model proposes for rectangular lithium ion battery top cover with Aluminum hull double laser beam composite welding apparatus.
The utility model proposes for rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus, packet Include: low-power laser transmission fiber, high-power laser transmission optical fiber, the first fixed module, the second fixed module, laser alignment are poly- Burnt instrument and recombination laser head;Low-power laser transmission fiber is fixed on laser alignment by the first fixed module and focuses on instrument, greatly Power laser transmission fiber by the second fixed module be fixed on laser alignment focus instrument on, and low-power laser transmission fiber and High-power laser transmission optical fiber is respectively positioned on the same end that laser alignment focuses instrument, and recombination laser head is mounted on laser alignment and focuses instrument Far from low-power laser transmission fiber and high-power laser transmission optical fiber one end;
When work, after laser alignment focuses the focusing of instrument and recombination laser head, low-power laser transmission fiber is generated Laser beam is preheated, forms preheating laser beam region on welding post;High-power laser transmission optical fiber generates welding laser beam, Welding laser beam region is formed on welding post.
Preferably, a welding concentric circular regions are collectively formed in preheating laser beam region and welding laser beam region.
Preferably, the diameter r in laser beam region is preheated2Greater than the diameter r in welding laser beam region1
In the utility model, what is proposed is hinged with for rectangular lithium ion battery top cover and aluminum hull double laser beam Combined Welding It sets, by using the laser beam composite welding for two kinds of different-energies that the laser transmission fiber of two kinds of different capacities generates, greatly The defects of improving welding quality, the fried point generated in welding process, blasting gelatine, stomata incomplete fusion can not only be eliminated;Simultaneously The fusion penetration of different welding material and wanting for molten wide can also be reached by the power of two kinds of different capacity laser transmission fibers of adjusting It asks.
Detailed description of the invention
Fig. 1 be the utility model proposes for rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus Structural schematic diagram.
Fig. 2 is double excitation welding region schematic diagram.
Specific embodiment
As shown in Figs. 1-2, Fig. 1 be the utility model proposes for rectangular lithium ion battery top cover and aluminum hull double laser beam The structural schematic diagram of composite welding apparatus.Fig. 2 is double excitation welding region schematic diagram.
Referring to Fig.1-2, the utility model proposes for rectangular lithium ion battery top cover and aluminum hull double laser beam Combined Welding Connection device, comprising: low-power laser transmission fiber 1, high-power laser transmission optical fiber 2, the first fixed module 3, the second stent Block 4, laser alignment focus instrument 5 and recombination laser head 6;Low-power laser transmission fiber 1 is fixed on sharp by the first fixed module 3 On light collimation focusing instrument 5, high-power laser transmission optical fiber 2 is fixed on laser alignment by the second fixed module 4 and focuses on instrument 5, And low-power laser transmission fiber 1 and high-power laser transmission optical fiber 2 are respectively positioned on the same end that laser alignment focuses instrument 5, it is compound Laser head 6 is mounted on laser alignment and focuses instrument 5 far from 2 one end of low-power laser transmission fiber 1 and high-power laser transmission optical fiber;
When work, after laser alignment focuses the focusing of instrument 5 and recombination laser head 6, low-power laser transmission fiber 1 is produced Raw preheating laser beam 7, forms preheating laser beam region 9 on welding post;High-power laser transmission optical fiber 2 generates welding laser Beam 8 forms welding laser beam region 10 on welding post.
The specific works for rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus of the present embodiment In the process, welded workpiece is placed on welding post first, installs welding material, start low-power laser transmission fiber 1 With high-power laser transmission optical fiber 2, low-power laser transmission fiber 1 generates the lesser preheating laser beam 7 of energy, high power laser Transmission fiber 2 generate the higher welding laser beam 8 of energy, two beam laser from optical fiber transmission after, by laser alignment focusing instrument 5 into Line focusing, then pass through the commissure that recombination laser head 6 focuses on welded workpiece, preheating laser beam 7 forms preheating laser beam area It welds laser beam 8 and forms welding laser beam region 10 in domain 9,10.During the welding process, preheating 7 energy of laser beam is small, pre- heat shock 7 pairs of preheating laser beam regions 9 of light beam preheat, and are mainly used for heating face of weld, fuse stomata, and impurity is passed through After thawing, gasification volatilization is carried out, avoids fried point;Welded workpiece can be preheated by preheating laser beam 7 simultaneously, so that workpiece is heated Expansion reduces weld gap, avoids light leakage, lead to the generation of blasting gelatine phenomenon;It is high to weld 8 energy of laser beam, directly melts to be welded It is welded in the welding laser beam region 10 for connecing workpiece base material.It, can be big by adjusting for the welded workpiece of different materials The power of power laser transmission fiber 2 welds the energy size of laser beam 8 to adjust, and realizes the workpiece that different materials are constituted Welding, expansion instrument use scope.
In the present embodiment, what is proposed is hinged with for rectangular lithium ion battery top cover and aluminum hull double laser beam Combined Welding It sets, by using the laser beam composite welding for two kinds of different-energies that the laser transmission fiber of two kinds of different capacities generates, greatly The defects of improving welding quality, the fried point generated in welding process, blasting gelatine, stomata incomplete fusion can not only be eliminated;Simultaneously The fusion penetration of different welding material and wanting for molten wide can also be reached by the power of two kinds of different capacity laser transmission fibers of adjusting It asks.
In a specific embodiment, it is same that a welding is collectively formed in preheating laser beam region 9 and welding laser beam region 10 The heart justifies region;Preheating laser beam 7 is precisely preheated to to-be-welded region, welding laser beam precisely welds it It connects.
Further, the diameter r in laser beam region 9 is preheated2Greater than the diameter r in welding laser beam region 101;Guarantee welding During connecing, preheating laser beam 7 can in advance preheat to-be-welded region always, fuse stomata, make impurity by melting After change, gasification volatilization is carried out, avoids fried point;And makes to-be-welded region remain expanded by heating before welding, subtract Small weld gap, avoids light leakage, leads to the generation of blasting gelatine phenomenon, guarantees welding effect.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (3)

1. for rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus characterized by comprising small-power Laser transmission fiber (1), high-power laser transmission optical fiber (2), the first fixed module (3), the second fixed module (4), laser quasi It is straight to focus instrument (5) and recombination laser head (6);Low-power laser transmission fiber (1) is fixed on laser by the first fixed module (3) On collimation focusing instrument (5), high-power laser transmission optical fiber (2) is fixed on laser alignment by the second fixed module (4) and focuses instrument (5) on, and low-power laser transmission fiber (1) and high-power laser transmission optical fiber (2) are respectively positioned on laser alignment and focus instrument (5) The same end, recombination laser head (6) are mounted on laser alignment and focus instrument (5) far from low-power laser transmission fiber (1) and high-power Laser transmission fiber (2) one end;
When work, after laser alignment focuses the focusing of instrument (5) and recombination laser head (6), low-power laser transmission fiber (1) Preheating laser beam (7) is generated, forms preheating laser beam region (9) on welding post;High-power laser transmission optical fiber (2) generates It welds laser beam (8), forms welding laser beam region (10) on welding post.
2. according to claim 1 be used for rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus, It is characterized in that, a welding concentric circular regions are collectively formed in preheating laser beam region (9) and welding laser beam region (10).
3. according to claim 1 be used for rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus, It is characterized in that, preheats the diameter r of laser beam region (9)2Greater than the diameter r of welding laser beam region (10)1
CN201821249729.2U 2018-08-04 2018-08-04 For rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus Active CN208961239U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821249729.2U CN208961239U (en) 2018-08-04 2018-08-04 For rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821249729.2U CN208961239U (en) 2018-08-04 2018-08-04 For rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus

Publications (1)

Publication Number Publication Date
CN208961239U true CN208961239U (en) 2019-06-11

Family

ID=66749679

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821249729.2U Active CN208961239U (en) 2018-08-04 2018-08-04 For rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus

Country Status (1)

Country Link
CN (1) CN208961239U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112222618A (en) * 2020-09-28 2021-01-15 上海飞博激光科技有限公司 Laser welding method capable of reducing welding explosion points
CN113172341A (en) * 2021-06-07 2021-07-27 凯博能源科技有限公司 Welding method of battery cover plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112222618A (en) * 2020-09-28 2021-01-15 上海飞博激光科技有限公司 Laser welding method capable of reducing welding explosion points
CN113172341A (en) * 2021-06-07 2021-07-27 凯博能源科技有限公司 Welding method of battery cover plate

Similar Documents

Publication Publication Date Title
CN208961239U (en) For rectangular lithium ion battery top cover and aluminum hull double laser beam composite welding apparatus
CN104308362B (en) A kind of method of the carved punched part of laser welding
CN103192149A (en) Welding method of laser brazing of X 80 pipeline steel
CN102896419A (en) Double-laser beam compound welding device and use method thereof
CN102699531B (en) Welding method for melting metal powder by laser scanning and device thereof
JP2017098565A5 (en)
CN103537788A (en) Method for welding thin-walled cylinder with magnet sleeved inside in seal housing component
CN104384674B (en) The motor-driven tungsten argon arc welding method of main pump motor rotor shielding sleeve and rotor end bell
CN105772927A (en) Electronic beam welding method of pipe base on AFA3G fuel module
CN107598376A (en) A kind of circuit board laser welding system
CN208743921U (en) A kind of online laser-beam welding machine
CN107414292A (en) A kind of titanium alloy parts defect laser accurate repairs soldering method
CN108581238B (en) Laser welding pressing device and pressing welding method
CN206029003U (en) Multistation spot welder
CN107584211A (en) A kind of high power laser welding system and its welding method based on high-velocity scanning galvanometer
CN104942437A (en) Laser welding machine
CN103011571B (en) Method for welding panel glass of display
CN107498177A (en) A kind of non-penetration laser welding method and system
CN107335915A (en) Laser soldering device and its welding method
JPH05208258A (en) Soldering device
CN206839410U (en) A kind of power battery case laser welding apparatus based on robot
CN109262137A (en) A kind of welding method of intermediate frequency amplifier
CN203765177U (en) Special clamp for laser welding
CN109014575A (en) A kind of double heated filament laser soldering devices of narrow gap, methods and applications
CN203649603U (en) Automobile brazing device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant