CN114700605A - Ultrasonic wave utmost point ear welding machine - Google Patents
Ultrasonic wave utmost point ear welding machine Download PDFInfo
- Publication number
- CN114700605A CN114700605A CN202210291954.7A CN202210291954A CN114700605A CN 114700605 A CN114700605 A CN 114700605A CN 202210291954 A CN202210291954 A CN 202210291954A CN 114700605 A CN114700605 A CN 114700605A
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- Prior art keywords
- wall
- limiting
- driving
- mounting
- tube
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- 238000003466 welding Methods 0.000 title claims abstract description 53
- 238000009434 installation Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides an ultrasonic tab welding machine, which belongs to the technical field of tab welding equipment and comprises a workbench, wherein a welding base is rotatably connected on the workbench, a welding station is arranged on the welding base, a welding machine body is arranged on the workbench, a vertical rod is fixedly connected on the workbench, an installation pipe is slidably connected on the outer wall of the vertical rod, two installation rods are fixedly connected on the outer wall of the installation pipe, the two installation rods are arranged in a staggered manner in the vertical direction, the two installation rods are coaxially arranged, one ends of the two installation rods, far away from the installation pipe, extend towards two ends, a clamping mechanism for clamping an electric core is arranged at one end of each installation rod, a driving mechanism for driving the installation pipes to slide and rotate on the vertical rod is arranged on the workbench, the ultrasonic tab welding machine has the advantages that an electric core to be processed can be conveniently placed on the welding station, and an operator can conveniently take off the welded electric core from the welding station, the energy consumption is reduced, and the welding efficiency of the battery cell is improved.
Description
Technical Field
The invention belongs to the technical field of tab welding equipment, and particularly relates to an ultrasonic tab welding machine.
Background
In the known power lithium battery production, the tabs are mostly loaded and welded in a manual mode through an ultrasonic welding machine at present, an operator needs to manually load and unload the tabs, and the processing production efficiency of the battery cell is reduced.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an ultrasonic tab welding machine which has the characteristics that a battery cell to be processed is placed on a welding station, an operator can take the welded battery cell from the welding station conveniently, energy consumption is reduced, and welding efficiency of the battery cell is improved.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an ultrasonic wave utmost point ear welding machine, comprises a workbench, it is connected with welding base to rotate on the workstation, be equipped with a plurality of welding station on welding base, be equipped with the welding machine body on the workstation, a fixedly connected with montant on the workstation, sliding connection has an installation pipe on the montant outer wall, two installation poles of fixedly connected with on the installation pipe outer wall, two installation poles are dislocation set and are coaxial setting between two installation poles in the vertical direction, the one end of installation pipe is kept away from to two installation poles extends towards both ends, one serving at the installation pole is equipped with the fixture that is used for centre gripping electricity core, be equipped with on the workstation and be used for driving the installation pipe gliding and pivoted actuating mechanism on the montant.
Further, actuating mechanism includes the actuating lever of fixed connection on the montant outer wall, sets up helicla flute and the setting is used for the driving piece of drive installation pipe up-and-down motion on the workstation on the installation pipe outer wall, actuating lever sliding connection is in the installation pipe, the angle of helicla flute is 180 degrees.
Further, the driving piece comprises a driving cylinder fixedly connected to the workbench, a driving plate fixedly connected to the telescopic end of the driving cylinder, a driving hole formed in the driving plate, and a limiting part arranged on the outer wall of the installation pipe and used for installing one end of the driving plate on the outer wall of the installation pipe, wherein the driving rod is rotatably connected to the outer wall of the installation pipe through the driving hole.
Further, the locating part includes the spacing ring of fixed connection on the installation tub outer wall and installs the spacing pipe on installation tub lower extreme outer wall, the drive plate is located between spacing ring and the pipe one end, the one end that the spacing ring was kept away from to spacing pipe is to seal the setting.
Further, be equipped with a coupling mechanism between spacing pipe and the installation intraductal wall, coupling mechanism includes ring, the go-between of sliding connection in the ring of seting up on the spacing intraductal wall, seting up internal thread on the go-between inner wall, seting up the external screw thread on the installation intraductal wall and sets up and be used for spacing pipe and the spacing subassembly of go-between pivoted simultaneously between installation pipe and spacing pipe, the width of ring is greater than the width of go-between.
Further, spacing subassembly includes first terminal surface tooth, the second terminal surface tooth and the spacing spring of one end fixed connection on spacing pipe one end inner wall of fixed connection on the go-between lower surface on the go-between, fixed connection on annular inner wall lower surface, the other end of spacing spring supports tightly on installation pipe lower extreme terminal surface, and under the effect of spacing spring restoring force, first terminal surface tooth and second terminal surface tooth break away from.
Furthermore, a end face bearing is fixedly connected to the lower surface of the limit ring and the end face of the upper end of the limit pipe.
Furthermore, the clamping mechanism comprises a clamping cylinder fixedly connected to the lower surface of one end of the mounting plate and a clamping plate fixedly connected to a clamping rod of the clamping cylinder.
Compared with the prior art, the invention has the following advantages:
1. the driving mechanism drives the mounting pipe to slide up and down on the vertical rod and rotate, the two clamping mechanisms are used for clamping a battery cell to be processed and a battery cell after welding is completed respectively, the driving mechanism drives the mounting pipe to move up and rotate, the battery cell to be processed is placed on the welding station, and the battery cell after welding is taken down from the welding station.
2. According to the invention, the driving plate is driven to move up and down by the driving cylinder, the driving plate drives the mounting pipe to move up and down by the driving hole, and the mounting pipe rotates under the action of the driving rod and the spiral groove.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of a limiting element according to the present invention.
In the figure, 1, a workbench; 2. welding the base; 3. a welding station; 4. a welding machine body; 5. a vertical rod; 6. installing a pipe; 7. mounting a rod; 8. a clamping mechanism; 9. a drive mechanism; 10. a drive rod; 11. a helical groove; 12. a drive member; 13. a driving cylinder; 14. a drive plate; 15. a drive aperture; 16. a stopper; 17. a limiting ring; 18. a limiting pipe; 19. a connecting mechanism; 20. a ring groove; 21. a connecting ring; 22. an internal thread; 23. an external thread; 24. a limiting component; 25. a first end face tooth; 26. a second end face tooth; 27. a limiting spring; 28. an end face bearing; 29. a clamping cylinder; 30. and (4) clamping the plate.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, an ultrasonic tab welding machine comprises a workbench 1, a welding machine body 4 is fixedly connected to the workbench 1, a welding base 2 is rotatably connected to the workbench 1, and a plurality of welding stations 3 are arranged on the welding base 2.
As shown in fig. 1 and 2, a vertical rod 5 is fixedly connected to the workbench 1, an installation pipe 6 is slidably connected to the outer wall of the vertical rod 5, two installation rods 7 are fixedly connected to the outer wall of the installation pipe 6, the two installation rods 7 are arranged in a staggered manner in the vertical direction, coaxial arrangement is formed between the two installation rods 7, one ends, far away from the installation pipe 6, of the two installation rods 7 extend towards two ends, one end, far away from the installation pipe 6, of each installation rod 7 is provided with a clamping mechanism 8 for clamping an electric core, and a driving mechanism 9 for driving the installation pipe 6 to move up and down and rotate is arranged on the workbench 1.
As shown in fig. 1 and fig. 2, the driving mechanism 9 includes a driving rod 10, a spiral groove 11 and a driving member 12, the driving rod 10 is fixedly connected to the outer wall of the vertical rod 5, the spiral groove 11 is formed in the outer wall of the installation pipe 6, the angle of the spiral groove 11 is 180 degrees, a sliding groove is formed in the outer wall of the installation pipe 6, two sliding grooves are respectively located at two ends of the spiral groove 11, one end of the sliding groove is communicated with one end of the spiral groove 11, the sliding groove is axially arranged along the installation pipe 6, the driving member 12 is arranged between the installation pipe 6 and the workbench 1, and the driving member 12 is used for driving the installation pipe 6 to slide along the height direction of the vertical rod 5.
As shown in fig. 1 and 2, the driving member 12 includes a driving cylinder 13, a driving plate 14, a driving hole 15 and a limiting member 16, the driving cylinder 13 is fixedly connected to the upper surface of the workbench 1, the telescopic end of the driving cylinder 13 is in vertical motion, the driving plate 14 is fixedly connected to the telescopic end of the driving cylinder 13, the driving hole 15 is formed in the driving plate 14, the driving plate 14 is slidably connected to the outer wall of the mounting tube 6 through the driving hole 15, the diameter of the inner wall of the driving hole 15 is larger than the outer diameter of the mounting tube 6, the limiting member 16 is arranged between the mounting tube 6 and the driving plate 14, and the limiting member 16 is used for limiting the driving plate 14 on the outer wall of the mounting tube 6.
As shown in fig. 1 and fig. 2, the limiting member 16 includes a limiting ring 17 and a limiting tube 18, the limiting ring 17 is fixedly connected to the outer wall of the mounting tube 6, the limiting tube 18 is mounted on the outer wall of the lower end of the mounting tube 6, the lower end of the limiting tube 18 is closed, and the driving plate 14 is located between the limiting ring 17 and one end of the limiting tube 18.
As shown in fig. 1 and 2, in order to facilitate the installation and removal of the limiting tube 18 by an operator, a connection mechanism 19 is arranged between the limiting tube 18 and the installation tube 6, the connection mechanism 19 comprises an annular groove 20, a connection ring 21, an internal thread 22, an external thread 23 and a limiting component 24, the annular groove 20 is formed in the inner wall of the limiting tube 18, the connection ring 21 is slidably connected in the annular groove 20, the width of the annular groove 20 is larger than that of the connection ring 21, the internal thread 22 is formed in the inner wall of the connection ring 21, the external thread 23 is formed in the outer wall of the installation tube 6, the internal thread 22 is meshed with the external thread 23, the limiting component 24 is arranged between the limiting tube 18 and the installation tube 6, and the limiting component 24 is used for limiting the simultaneous rotation of the limiting tube 18 and the connection ring 21.
As shown in fig. 1 and 2, the limiting component 24 includes a first end face tooth 25, a second end face tooth 26 and a limiting spring 27, the first end face tooth 25 is fixedly connected to the lower surface of the connecting ring 21, the second end face tooth 26 is fixedly connected to the lower surface of the inner wall of the annular groove 20, one end of the limiting spring 27 is fixedly connected to the inner wall of the limiting tube 18 far away from the limiting ring 17, the other end of the limiting spring 27 abuts against the end surface of the lower end of the mounting tube 6, and the first end face tooth 25 and the second end face tooth 26 are separated from each other under the action of the limiting spring 27.
As shown in fig. 1 and 2, in order to improve the stability of the rotation of the mounting pipe 6 on the inner wall of the driving hole 15, an end surface bearing 28 is fixedly connected to both the lower surface of the stopper ring 17 and the upper end surface of the stopper pipe 18.
As shown in fig. 1 and 2, the clamping mechanism 8 includes a clamping cylinder 29 and a clamping plate 30, the clamping cylinder 29 is fixedly connected to the lower surface of the mounting rod 7, the power source of the clamping cylinder 29 is an external air pump, and the clamping plate 30 is fixedly connected to the clamping rod of the clamping cylinder 29.
The working principle of the embodiment of the invention is as follows: the clamping cylinder 29 drives the clamping plate 30 to move, the clamping plate 30 clamps the battery cell to be processed and the welded battery cell tightly, the driving cylinder 13 drives the driving plate 14 to move upwards, the driving plate 14 drives the mounting pipe 6 to move upwards, the mounting pipe 6 rotates under the action of the driving rod 10 and the spiral groove 11, the battery cell to be processed is placed on the welding station 3, and the welded battery cell is taken down from the welding station 3;
the limiting spring 27 is compressed by pressing the limiting tube 18, the first end face teeth 25 are meshed with the second end face teeth 26, the limiting tube 18 drives the connecting ring 21 to rotate, and the internal threads 22 on the connecting ring 21 are meshed with the external threads 23 on the outer wall of the mounting tube 6.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.
Although 1, a table is used more herein; 2. welding a base; 3. a welding station; 4. a welding machine body; 5. a vertical rod; 6. installing a pipe; 7. mounting a rod; 8. a clamping mechanism; 9. a drive mechanism; 10. a drive rod; 11. a helical groove; 12. a drive member; 13. a driving cylinder; 14. a drive plate; 15. a drive aperture; 16. a limiting member; 17. a limiting ring; 18. a limiting pipe; 19. a connecting mechanism; 20. a ring groove; 21. a connecting ring; 22. an internal thread; 23. an external thread; 24. a limiting component; 25. a first end face tooth; 26. a second end face tooth; 27. a limiting spring; 28. an end face bearing; 29. a clamping cylinder; 30. clamping plates, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. An ultrasonic tab welding machine is characterized by comprising a workbench (1), a welding base (2) is rotatably connected on the workbench (1), a plurality of welding stations (3) are arranged on the welding base (2), a welding machine body (4) is arranged on the worktable (1), a vertical rod (5) is fixedly connected on the workbench (1), an installation pipe (6) is connected on the outer wall of the vertical rod (5) in a sliding way, two mounting rods (7) are fixedly connected on the outer wall of the mounting pipe (6), the two mounting rods (7) are arranged in a staggered manner in the vertical direction and are coaxially arranged between the two mounting rods (7), one ends of the two mounting rods (7) far away from the mounting pipe (6) extend towards the two ends, a clamping mechanism (8) for clamping the battery core is arranged at one end of the mounting rod (7), the workbench (1) is provided with a driving mechanism (9) for driving the mounting pipe (6) to slide up and down on the vertical rod (5) and rotate.
2. An ultrasonic tab welding machine according to claim 1, characterized in that the driving mechanism (9) comprises a driving rod (10) fixedly connected to the outer wall of the vertical rod (5), a spiral groove (11) formed in the outer wall of the mounting tube (6), and a driving member (12) arranged on the worktable (1) for driving the mounting tube (6) to move up and down, wherein the driving rod (10) is slidably connected in the mounting tube (6), and the angle of the spiral groove (11) is 180 degrees.
3. An ultrasonic tab welding machine according to claim 2, wherein the driving member (12) comprises a driving cylinder (13) fixedly connected to the working table (1), a driving plate (14) fixedly connected to the telescopic end of the driving cylinder (13), a driving hole (15) formed in the driving plate (14), and a limiting member (16) arranged on the outer wall of the mounting pipe (6) and the driving plate (14) and used for installing one end of the driving plate (14) on the outer wall of the mounting pipe (6), and the driving rod (10) is rotatably connected to the outer wall of the mounting pipe (6) through the driving hole (15).
4. An ultrasonic tab welding machine according to claim 3, characterized in that the limiting member (16) comprises a limiting ring (17) fixedly connected to the outer wall of the mounting tube (6) and a limiting tube (18) mounted on the outer wall of the lower end of the mounting tube (6), the driving plate (14) is located between the limiting ring (17) and one end of the limiting tube (18), and one end of the limiting tube (18) far away from the limiting ring (17) is in a closed arrangement.
5. An ultrasonic tab welding machine according to claim 4, characterized in that a connecting mechanism (19) is provided between the limiting tube (18) and the outer wall of the mounting tube (6), the connecting mechanism (19) comprises an annular groove (20) formed on the inner wall of the limiting tube (18), a connecting ring (21) slidably connected in the annular groove (20), an internal thread (22) formed on the inner wall of the connecting ring (21), an external thread (23) formed on the outer wall of the mounting tube (6), and a limiting component (24) provided between the mounting tube (6) and the limiting tube (18) for limiting the simultaneous rotation of the limiting tube (18) and the connecting ring (21), wherein the width of the annular groove (20) is greater than the width of the connecting ring (21).
6. An ultrasonic tab welding machine according to claim 5, characterized in that the limiting component (24) comprises a first end face tooth (25) fixedly connected to the lower surface of the connecting ring (21), a second end face tooth (26) fixedly connected to the lower surface of the inner wall of the annular groove (20), and a limiting spring (27) fixedly connected to the inner wall of one end of the limiting pipe (18), wherein the other end of the limiting spring (27) abuts against the end face of the lower end of the mounting pipe (6), and the first end face tooth (25) and the second end face tooth (26) are separated from each other under the restoring force of the limiting spring (27).
7. An ultrasonic tab welding machine according to claim 6 characterised in that an end bearing (28) is fixedly connected to both the lower surface of the stop collar (17) and the upper end face of the stop tube (18).
8. An ultrasonic tab welding machine according to claim 1 wherein the clamping mechanism (8) comprises a clamping cylinder (29) fixedly attached to the lower surface of one end of the mounting plate and a clamping plate (30) fixedly attached to the clamping rod of the clamping cylinder (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210291954.7A CN114700605B (en) | 2022-03-23 | 2022-03-23 | Ultrasonic wave tab welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210291954.7A CN114700605B (en) | 2022-03-23 | 2022-03-23 | Ultrasonic wave tab welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114700605A true CN114700605A (en) | 2022-07-05 |
| CN114700605B CN114700605B (en) | 2024-03-08 |
Family
ID=82169040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210291954.7A Active CN114700605B (en) | 2022-03-23 | 2022-03-23 | Ultrasonic wave tab welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114700605B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005111547A (en) * | 2003-10-10 | 2005-04-28 | Nissan Motor Co Ltd | Ultrasonic welding machine |
| KR101556405B1 (en) * | 2014-06-23 | 2015-09-30 | 박수범 | A robot welding machine for an Euro-form frame |
| WO2018103081A1 (en) * | 2016-12-09 | 2018-06-14 | 冯庆柱 | Laser composite welding device |
| CN109434326A (en) * | 2018-10-18 | 2019-03-08 | 中国化学工程第六建设有限公司 | Device for automatic welding of pipelines |
| CN212256745U (en) * | 2020-06-04 | 2020-12-29 | 浙江万合标识科技股份有限公司 | Support arrangement for thing networking signboard |
| US20210098766A1 (en) * | 2019-09-30 | 2021-04-01 | Hyundai Motor Company | Ultrasonic welding system of rechargeable battery and manufacturing method of rechargeable battery using the same |
| CN213888900U (en) * | 2020-12-10 | 2021-08-06 | 浙江嘉尔成汽车部件有限公司 | Manipulator ignition coil welding system |
| CN215280635U (en) * | 2021-07-02 | 2021-12-24 | 上海稳傲科技有限公司 | Welding fixing clamp for machine manufacturing |
| CN215615751U (en) * | 2021-08-27 | 2022-01-25 | 黑龙江国信通科技讯息产业有限公司 | Ultrasonic welding device for lithium ion battery |
-
2022
- 2022-03-23 CN CN202210291954.7A patent/CN114700605B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005111547A (en) * | 2003-10-10 | 2005-04-28 | Nissan Motor Co Ltd | Ultrasonic welding machine |
| KR101556405B1 (en) * | 2014-06-23 | 2015-09-30 | 박수범 | A robot welding machine for an Euro-form frame |
| WO2018103081A1 (en) * | 2016-12-09 | 2018-06-14 | 冯庆柱 | Laser composite welding device |
| CN109434326A (en) * | 2018-10-18 | 2019-03-08 | 中国化学工程第六建设有限公司 | Device for automatic welding of pipelines |
| US20210098766A1 (en) * | 2019-09-30 | 2021-04-01 | Hyundai Motor Company | Ultrasonic welding system of rechargeable battery and manufacturing method of rechargeable battery using the same |
| CN212256745U (en) * | 2020-06-04 | 2020-12-29 | 浙江万合标识科技股份有限公司 | Support arrangement for thing networking signboard |
| CN213888900U (en) * | 2020-12-10 | 2021-08-06 | 浙江嘉尔成汽车部件有限公司 | Manipulator ignition coil welding system |
| CN215280635U (en) * | 2021-07-02 | 2021-12-24 | 上海稳傲科技有限公司 | Welding fixing clamp for machine manufacturing |
| CN215615751U (en) * | 2021-08-27 | 2022-01-25 | 黑龙江国信通科技讯息产业有限公司 | Ultrasonic welding device for lithium ion battery |
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| Publication number | Publication date |
|---|---|
| CN114700605B (en) | 2024-03-08 |
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