CN209614571U - A kind of disc type aluminium-to-nickel tab welding equipment - Google Patents
A kind of disc type aluminium-to-nickel tab welding equipment Download PDFInfo
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- CN209614571U CN209614571U CN201920229614.5U CN201920229614U CN209614571U CN 209614571 U CN209614571 U CN 209614571U CN 201920229614 U CN201920229614 U CN 201920229614U CN 209614571 U CN209614571 U CN 209614571U
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Abstract
The utility model relates to a kind of disc type aluminium-to-nickel tab welding equipment, including touch screen and rack, the rack is equipped with disc assembly, it is uniformly distributed on the disc assembly that there are six welding benches, the outside of each welding bench is corresponding to it equipped with station, is successively arranged aluminium pole ears feeding station, nickel material feeding station, aluminium pole ears and nickel material positional stations, aluminium pole ears and nickel material overlap joint station, laser welding station and finished product unloading station along disc assembly direction of rotation.The utility model is realized to be turned to be welded into as the automatic welding of aluminium-to-nickel tab by aluminium pole ears and nickel material, is realized automated production, is substantially increased production, to save a large amount of human cost and production cost, while also reducing the fraction defective of aluminium-to-nickel tab.
Description
Technical field
The utility model relates to lithium battery pole ear making apparatus technical fields, and in particular to a kind of disc type aluminium-to-nickel tab
Welding equipment.
Background technique
The material of the positive pole ear of soft-packaged polymer lithium ion battery is usually fine aluminium.Battery is needed when processing assembling
The positive and negative anodes of battery are connect with other electron component by welding, however the positive pole ear made of fine aluminium cannot be straight
Tap into row scolding tin.Existing technique is usually exit one section of nickel strap of welding in cell positive pole ear, then passes through nickel strap and carry out
Soldering, this technique are referred to as the positive pole ear aluminium-to-nickel technique of soft-packaged polymer lithium ion battery.
Basic mode that there are two types of the positive pole ear aluminium-to-nickel technologies of existing soft-packaged polymer lithium ion battery, one is
Nickel strap is soldered to positive pole ear by laser-beam welding machine in the fabrication process, by tab manufactory by aluminium pole ears, is produced single
Aluminium-to-nickel tab；Another kind be aluminium pole ears in tab manufactory without aluminium-to-nickel technique, be directly produced into single aluminium pole ears,
After cell manufacturer is produced into battery core using such tab, then aluminium is carried out by metal ultrasonic bonding machine or laser-beam welding machine and is turned
Nickel technique.For at present, when tab manufactory carries out aluminium-to-nickel welding, the higher equipment of and the degree of automation ripe there are no life,
But mostly use greatly dock by hand after laser welding again mode, not only welding efficiency is low, and stability is poor, and converts to single
Cost on product is very high, to reduce the profit of enterprise.
Utility model content
Simple, high production efficiency that purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of structures is convenient for pole
The automation that ear manufactory carries out aluminium-to-nickel welding turns soldering equipment.
Purpose of the utility model is realized as follows:
The utility model relates to a kind of disc type aluminium-to-nickel tab welding equipment, including touch screen and rack, the racks
It is equipped with disc assembly, is evenly distributed on the disc assembly there are six welding bench, the outside of each welding bench is equipped with work
Position is corresponding to it, and is successively arranged aluminium pole ears feeding station, nickel material feeding station, aluminium pole ears and nickel material along disc assembly direction of rotation
Positional stations, aluminium pole ears and nickel material overlap joint station, laser welding station and finished product unloading station.
Preferably, the bottom of the welding bench is transversely provided with cylinder slide unit, and the cylinder slide unit is gone up and down by nickel material
Cylinder connects nickel material welding bench, and the bottom of the welding bench passes through composition backing cylinder connecting welding backing plate, the welding
Backing plate connecting tab welding bench, the nickel material welding bench and tab welding platform left and right settings and the table top for stretching out welding bench.
Preferably, the aluminium pole ears and nickel material positional stations include locating rack, and it is sliding that the bottom of the locating rack is equipped with first
Rail, top are equipped with upper cylinder, and the upper cylinder passes through upper plate and connects floating junction, and the floating junction is connected by connecting plate
Fixed plate, the fixed board ends are equipped with the first sliding block, and corresponding first sliding block is equipped with the second sliding rail on the locating rack, described solid
The lower section of fixed board connects wealthy type pneumatic clamper by wealthy type pneumatic clamper mounting plate, and the wealthy type pneumatic clamper correspondence connects wealthy type pneumatic clamper thimble
The inside of locating piece and wealthy type pneumatic clamper stationary positioned block, the wealthy type pneumatic clamper is equipped with interfix pneumatic clamper, the interfix gas
The left and right of pawl is separately connected intermediate nickel material locating piece and intermediate tab locating piece, difference at left and right sides of the wealthy type pneumatic clamper mounting plate
Equipped with left positioning cylinder and right positioning cylinder, the left positioning cylinder and right positioning cylinder are separately connected left and right cylinder thimble and fix
Block.
Preferably, the laser welding station includes laser-beam welding machine and welding pressing device, the welding pressing device
Including clamping frame, the top of the clamping frame, which is equipped with, compresses lifting cylinder, and the contraction pole for compressing lifting cylinder passes through cylinder
Backing plate connects compact heap mounting plate, and the compact heap mounting plate connects compact heap upper mounted plate, and the compact heap upper mounted plate is logical
Cross guide post connection compact heap, be arranged with spring on the guide post, the spring between compact heap upper mounted plate and compact heap,
The compact heap side is equipped with air inlet, and the air inlet connects inlet suction port, and the compact heap bottom is equipped with the compression of protrusion
Face, the compact heap bottom correspond to seal face equipped with miniature gas hole.
Preferably, guide rail is additionally provided at the top of the clamping frame, the guide rail is parallel with the lifting direction of lifting cylinder is compressed,
The guide rail is equipped with the second sliding block, and second sliding block moves up and down on guide rail.
Preferably, the bottom of the clamping frame is equipped with adjusting block, and the adjusting block is bolted adjusting fixation by adjusting
Block.
Preferably, the corresponding lifting cylinder that compresses is additionally provided with hydraulic bjuffer on the clamping frame.
The beneficial effects of the utility model are:
The utility model is automatically positioned by automatic charging machinery hand automatic charging, by locating module, automatic overlap joint, swashs
Light automatic welding, manipulator automatic discharging turn aluminium pole ears and nickel material be welded into as the automatic welding of aluminium-to-nickel tab to realize,
Automated production is realized, production is substantially increased, to save a large amount of human cost and production cost, while also being reduced
The fraction defective of aluminium-to-nickel tab.Therefore, the disc type aluminium-to-nickel tab welding equipment of the utility model be not only simple in structure and
And high production efficiency, fill up the technological gap of aluminium-to-nickel automatic welding.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of welding bench.
Fig. 3 is the schematic device of aluminium pole ears and nickel material positional stations.
Fig. 4 is the partial enlarged view of Fig. 3.
Fig. 5 is the bottom view of Fig. 4.
Fig. 6 is the structural schematic diagram for welding pressing device.
Fig. 7 is the bottom view of compact heap.
Wherein: touch screen 1；Rack 2；Welding bench 3；Cylinder slide unit 3.1；Nickel material lifting cylinder 3.2；Nickel material welding bench
3.3；Composition backing 3.4；Tab welding platform 3.5；Tab material mounting table 4；Aluminium pole ears 4.1；Nickel material mounting table 5；Nickel material 5.1；Aluminium
Tab and nickel material positional stations 6；Locating rack 6.1；First sliding rail 6.2；Upper cylinder 6.3；Upper plate 6.4；Floating junction 6.5；Even
Fishplate bar 6.6；Fixed plate 6.7；First sliding block 6.8；Second sliding rail 6.9；Wealthy type pneumatic clamper mounting plate 6.10；Wealthy type pneumatic clamper 6.11；It is wealthy
Type pneumatic clamper thimble locating piece 6.12；Wealthy type pneumatic clamper stationary positioned block 6.13；Interfix pneumatic clamper 6.14；Intermediate nickel material locating piece
6.15；Intermediate tab locating piece 6.16；Left positioning cylinder 6.17；Right positioning cylinder 6.18；Left and right cylinder thimble fixed block 6.19；
Feeding manipulator 7；Finished product unloading station 8；Unloading manipulator 8.1；Discharging placement platform 8.2；Laser-beam welding machine 9；Welding compresses
Device 10；Clamping frame 10.1；Compress lifting cylinder 10.2；Cylinder backing plate 10.3；Compact heap mounting plate 10.4；It is fixed on compact heap
Plate 10.5；Guide post 10.6；Compact heap 10.7；Spring 10.8；Inlet suction port 10.9；Seal face 10.10；Miniature gas hole 10.11；
Guide rail 10.12；Second sliding block 10.13；Adjusting block 10.14；Adjust bolt 10.15；Adjust fixed block 10.16；Hydraulic bjuffer
10.17；Inlet suction port 10.18.
Specific embodiment
Referring to Fig. 1-Fig. 7, the utility model relates to a kind of disc type aluminium-to-nickel tab welding equipment, including 1 He of touch screen
Rack 2, the rack 2 are equipped with disc assembly, and uniformly distributed on the disc assembly there are six welding bench 3, each Welders
The outside for making platform 3 is corresponding to it equipped with station, is successively arranged aluminium pole ears feeding station, nickel material feeding along disc assembly direction of rotation
Station, aluminium pole ears and nickel material positional stations 6, aluminium pole ears and nickel material overlap joint station, laser welding station and finished product unloading station 8.
The bottom of the welding bench 3 is transversely provided with cylinder slide unit 3.1, and the cylinder slide unit 3.1 is gone up and down by nickel material
Cylinder 3.2 connects nickel material welding bench 3.3, and the bottom of the welding bench 3 passes through composition backing cylinder connecting welding backing plate
3.4, the 3.4 connecting tab welding bench 3.5 of composition backing, the nickel material welding bench 3.3 and 3.5 left and right settings of tab welding platform
And stretch out the table top of welding bench 3.
The aluminium pole ears and nickel material positional stations 6 include locating rack 6.1, and it is sliding that the bottom of the locating rack 6.1 is equipped with first
Rail 6.2, top are equipped with upper cylinder 6.3, and the upper cylinder 6.3 passes through upper plate 6.4 and connects floating junction 6.5, and the floating connects
First 6.5 are connected and fixed plate 6.7 by connecting plate 6.6, and 6.7 both ends of fixed plate are equipped with the first sliding block 6.8, the locating rack
Corresponding first sliding block 6.8 is equipped with the second sliding rail 6.9 on 6.1, and the lower section of the fixed plate 6.7 passes through wealthy type pneumatic clamper mounting plate 6.10
Wealthy type pneumatic clamper 6.11 is connected, wealthy 6.11 correspondence of type pneumatic clamper connects wealthy type pneumatic clamper thimble locating piece 6.12 and wealthy type pneumatic clamper
The inside of stationary positioned block 6.13, the wealthy type pneumatic clamper 6.11 is equipped with interfix pneumatic clamper 6.14, the interfix pneumatic clamper
6.14 left and right is separately connected intermediate nickel material locating piece 6.15 and intermediate tab locating piece 6.16, the wealthy type pneumatic clamper mounting plate
6.10 are respectively arranged on the left side and the right side left positioning cylinder 6.17 and right positioning cylinder 6.18, the left positioning cylinder 6.17 and right positioning
Cylinder 6.18 is separately connected left and right cylinder thimble fixed block 6.19.
The laser welding station includes laser-beam welding machine 9 and welding pressing device 10, and the welding pressing device 10 wraps
Clamping frame 10.1 is included, the top of the clamping frame 10.1, which is equipped with, compresses lifting cylinder 10.2, the compression lifting cylinder 10.2
Contraction pole connects compact heap mounting plate 10.4 by cylinder backing plate 10.3, and the compact heap mounting plate 10.4 connects solid on compact heap
Fixed board 10.5, the compact heap upper mounted plate 10.5 connect compact heap 10.7 by guide post 10.6, are arranged on the guide post 10.6
There is spring 10.8, the spring 10.8 between compact heap upper mounted plate 10.5 and compact heap 10.7, give by the spring 10.8
The certain pretightning force of compact heap 10.7, nut adjustment of the size of pretightning force by 10.6 top of guide post, the compact heap 10.7
Side is equipped with air inlet 10.18, and the air inlet 10.18 connects inlet suction port 10.9, and 10.7 bottom of compact heap is equipped with convex
The seal face 10.10 risen, 10.7 bottom of compact heap correspond to seal face 10.10 equipped with miniature gas hole 10.11.
Guide rail 10.12, the guide rail 10.12 and the liter for compressing lifting cylinder 10.2 are additionally provided at the top of the clamping frame 10.1
Drop direction it is parallel, the guide rail 10.12 be equipped with the second sliding block 10.13, second sliding block 10.13 on guide rail 10.12 on
Lower movement, 10.12 pairs of compression lifting cylinders 10.2 of the second sliding block 10.13 and guide rail have good guiding role, it is ensured that compress
The stability that lifting cylinder 10.2 is gone up and down.
The bottom of the clamping frame 10.1 is equipped with adjusting block 10.14, and the adjusting block 10.14 is by adjusting bolt 10.15
Connection adjusts fixed block 10.16, carries out front and back fine tuning to entire welding pressing device 10 by adjusting bolt 10.15.
The corresponding lifting cylinder 10.2 that compresses is additionally provided with hydraulic bjuffer 10.17 on the clamping frame 10.1, and it is gentle to play limit
Punching effect.
A kind of disc type aluminium-to-nickel pole ear welding method, welding method the following steps are included:
Step 1: feeding manipulator 7 draws aluminium pole ears from the tab material mounting table 4 of aluminium pole ears feeding station by sucker
4.1, it is placed on the tab welding platform 3.5 of welding bench 3 corresponding with aluminium pole ears feeding station, disk rotational to nickel material
Feeding station；
Step 2: feeding manipulator 7 draws nickel material 5.1 from the nickel material mounting table 5 of nickel material feeding station by sucker, place
On the nickel material welding bench 3.3 of welding bench 3 corresponding with nickel material feeding station, disk rotational to aluminium pole ears and nickel is anticipated
Position station 6；
Step 3: aluminium pole ears and nickel material positional stations 6 are carried out while being positioned, disk rotational to aluminium pole ears 4.1 and nickel material 5.1
Station is overlapped to aluminium pole ears and nickel material；
When positioning, upper cylinder 6.3 stretches out, and entire positioning mechanism is driven to decline；Interfix pneumatic clamper 6.14 is opened, thereon
Intermediate nickel material locating piece 6.15 and intermediate tab locating piece 6.16 are respectively as the stationary positioned side of nickel material 5.1 and aluminium pole ears 4.1；
Wealthy type pneumatic clamper 6.11 is closed, stationary positioned of the wealthy type pneumatic clamper stationary positioned block 6.13 as nickel material 5.1 and aluminium pole ears 4.1 thereon
Side；Flexible thimble is filled on wealthy type pneumatic clamper thimble locating piece 6.12, nickel material 5.1 and aluminium pole ears 4.1 can be held out against wealthy type
On pneumatic clamper stationary positioned block 6.13, precise positioning is realized；Left positioning cylinder 6.17 stretches out, and drives corresponding left and right cylinder thimble solid
The thimble for determining block 6.19 holds out against nickel material 5.1 on intermediate nickel material locating piece 6.15；Right positioning cylinder 6.18 stretches out, and drives and corresponds to
The thimble of left and right cylinder thimble fixed block 6.19 aluminium pole ears 4.1 are held out against on intermediate tab locating piece 6.16；Positioning is completed
After, the vacuum of 4.1 lower section of nickel material 5.1 and aluminium pole ears is opened, and adsorbing material prevents from loosening；Wealthy type pneumatic clamper 6.11 is opened,
On wealthy type pneumatic clamper thimble locating piece 6.12 and wealthy type pneumatic clamper stationary positioned block 6.13 retract simultaneously；Left positioning cylinder 6.17 closes
It closes, thimble thereon is retracted；Right positioning cylinder 6.18 is closed, and thimble thereon is retracted；Interfix pneumatic clamper 6.14 is closed, thereon
Intermediate nickel material locating piece 6.15 and intermediate tab locating piece 6.16 retract；Upper cylinder 6.3 retracts, and entire mechanism is driven to rise,
Complete a positioning cycle.
Step 4: aluminium pole ears and nickel material overlap joint station carry out on welding bench 3, cylinder slide unit 3.1 pushes the weldering of nickel material
Consecutive 3.3 is close with tab welding platform 3.5, and nickel material lifting cylinder 3.2 declines, and aluminium pole ears 4.1 and nickel material 5.1 are overlapped on one
It rises, while composition backing cylinder rises, and withstands nickel material 5.1, disk rotational to laser welding station；
Decline Step 5: compressing lifting cylinder 10.2, the seal face 10.10 of compact heap 10.7 is driven to compress aluminium pole ears 4.1
With nickel material 5.1, compressed air enters from air blowing connector 10.9 to be blown out through miniature gas hole 10.11, is cooled down to welding position,
Blowing direction is aligned at the gel of welding position, blows away in time the heat generated when welding；Then laser-beam welding machine 9 is swashed
Photocoagulation, welding are completed, and compressed air stops, and are compressed lifting cylinder 10.2 and are risen, disk rotational to finished product unloading station 8；
Step 6: the unloading manipulator 8.1 of finished product unloading station 8 draws the aluminium-to-nickel tab being welded by sucker, it will
Aluminium-to-nickel tab is put into discharging placement platform 8.2, and disk is continued to rotate to aluminium pole ears feeding station, starts next cycle wheel
Turn.
In addition to the implementation, the utility model further includes having other embodiments, all to use equivalents or equivalent
The technical solution that alternative is formed, should all fall within the protection scope of the utility model claims.
Claims (7)
1. a kind of disc type aluminium-to-nickel tab welding equipment, it is characterised in that: including touch screen (1) and rack (2), the rack
(2) be equipped with disc assembly, it is uniformly distributed there are six welding bench (3) on the disc assembly, each welding bench (3) it is outer
Side is corresponding to it equipped with station, is successively arranged aluminium pole ears feeding station, nickel material feeding station, aluminium pole along disc assembly direction of rotation
Ear and nickel material positional stations (6), aluminium pole ears and nickel material overlap joint station, laser welding station and finished product unloading station (8).
2. a kind of disc type aluminium-to-nickel tab welding equipment according to claim 1, it is characterised in that: the welding
The bottom of platform (3) is transversely provided with cylinder slide unit (3.1), and the cylinder slide unit (3.1) connects nickel by nickel material lifting cylinder (3.2)
Expect welding bench (3.3), the bottom of the welding bench (3) passes through composition backing cylinder connecting welding backing plate (3.4), the weldering
Connection pad plate (3.4) connecting tab welding bench (3.5), the nickel material welding bench (3.3) and tab welding platform (3.5) left and right settings and
Stretch out the table top of welding bench (3).
3. a kind of disc type aluminium-to-nickel tab welding equipment according to claim 1, it is characterised in that: the aluminium pole ears and
Nickel material positional stations (6) include locating rack (6.1), and the bottom of the locating rack (6.1) is equipped with the first sliding rail (6.2), and top is set
Have upper cylinder (6.3), the upper cylinder (6.3) passes through upper plate (6.4) connection floating junction (6.5), the floating junction
(6.5) it is connected and fixed plate (6.7) by connecting plate (6.6), fixed plate (6.7) both ends are equipped with the first sliding block (6.8), described
Corresponding first sliding block (6.8) are equipped with the second sliding rail (6.9) on locating rack (6.1), and the lower section of the fixed plate (6.7) passes through wealthy type
Pneumatic clamper mounting plate (6.10) connects wealthy type pneumatic clamper (6.11), and wealthy type pneumatic clamper (6.11) correspondence connects wealthy type pneumatic clamper thimble
The inside of locating piece (6.12) and wealthy type pneumatic clamper stationary positioned block (6.13), the wealthy type pneumatic clamper (6.11) is equipped with interfix gas
Pawl (6.14), the left and right of the interfix pneumatic clamper (6.14) is separately connected intermediate nickel material locating piece (6.15) and intermediate tab is fixed
Position block (6.16), the wealthy type pneumatic clamper mounting plate (6.10) are respectively arranged on the left side and the right side left positioning cylinder (6.17) and right positioning gas
Cylinder (6.18), the left positioning cylinder (6.17) and right positioning cylinder (6.18) are separately connected left and right cylinder thimble fixed block
(6.19).
4. a kind of disc type aluminium-to-nickel tab welding equipment according to claim 1, it is characterised in that: the laser welding
Station includes laser-beam welding machine (9) and welding pressing device (10), and the welding pressing device (10) includes clamping frame (10.1),
The top of the clamping frame (10.1), which is equipped with, compresses lifting cylinder (10.2), and the contraction pole for compressing lifting cylinder (10.2) is logical
Cylinder backing plate (10.3) connection compact heap mounting plate (10.4) is crossed, is fixed on compact heap mounting plate (10.4) the connection compact heap
Plate (10.5), the compact heap upper mounted plate (10.5) pass through guide post (10.6) connection compact heap (10.7), the guide post
(10.6) it is arranged on spring (10.8), the spring (10.8) is located at compact heap upper mounted plate (10.5) and compact heap (10.7)
Between, compact heap (10.7) side is equipped with air inlet (10.18), and the air inlet (10.18) connects inlet suction port
(10.9), compact heap (10.7) bottom is equipped with the seal face (10.10) of protrusion, the corresponding pressure in compact heap (10.7) bottom
Tight face (10.10) is equipped with miniature gas hole (10.11).
5. a kind of disc type aluminium-to-nickel tab welding equipment according to claim 4, it is characterised in that: the clamping frame
(10.1) top is additionally provided with guide rail (10.12), and the guide rail (10.12) and the lifting direction for compressing lifting cylinder (10.2) are flat
Row, the guide rail (10.12) be equipped with the second sliding block (10.13), second sliding block (10.13) on guide rail (10.12) on
Lower movement.
6. a kind of disc type aluminium-to-nickel tab welding equipment according to claim 4, it is characterised in that: the clamping frame
(10.1) bottom is equipped with adjusting block (10.14), and the adjusting block (10.14) is solid by adjusting bolt (10.15) connection adjusting
Determine block (10.16).
7. a kind of disc type aluminium-to-nickel tab welding equipment according to claim 4, it is characterised in that: the clamping frame
(10.1) corresponding compress lifting cylinder (10.2) are additionally provided with hydraulic bjuffer (10.17) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920229614.5U CN209614571U (en) | 2019-02-25 | 2019-02-25 | A kind of disc type aluminium-to-nickel tab welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920229614.5U CN209614571U (en) | 2019-02-25 | 2019-02-25 | A kind of disc type aluminium-to-nickel tab welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209614571U true CN209614571U (en) | 2019-11-12 |
Family
ID=68454449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920229614.5U Active CN209614571U (en) | 2019-02-25 | 2019-02-25 | A kind of disc type aluminium-to-nickel tab welding equipment |
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| CN (1) | CN209614571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676254A (en) * | 2019-02-25 | 2019-04-26 | 江苏九蓝新能源科技有限公司 | A kind of disc type aluminium-to-nickel tab welding equipment |
| CN111889902A (en) * | 2020-06-11 | 2020-11-06 | 苏州富强科技有限公司 | Suction mechanism for laser welding |
-
2019
- 2019-02-25 CN CN201920229614.5U patent/CN209614571U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676254A (en) * | 2019-02-25 | 2019-04-26 | 江苏九蓝新能源科技有限公司 | A kind of disc type aluminium-to-nickel tab welding equipment |
| CN109676254B (en) * | 2019-02-25 | 2023-09-22 | 江苏九蓝新能源科技有限公司 | Disc type aluminum-nickel tab welding equipment |
| CN111889902A (en) * | 2020-06-11 | 2020-11-06 | 苏州富强科技有限公司 | Suction mechanism for laser welding |
| CN111889902B (en) * | 2020-06-11 | 2022-04-15 | 苏州富强科技有限公司 | Suction mechanism for laser welding |
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