CN114536009B - Confluence welding device - Google Patents

Confluence welding device Download PDF

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Publication number
CN114536009B
CN114536009B CN202210339524.8A CN202210339524A CN114536009B CN 114536009 B CN114536009 B CN 114536009B CN 202210339524 A CN202210339524 A CN 202210339524A CN 114536009 B CN114536009 B CN 114536009B
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China
Prior art keywords
welding
module
welding strip
strip
template
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CN202210339524.8A
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CN114536009A (en
Inventor
郑栋
李盛洋
李奎
程金
崔小祥
许翔
卢杰
郭绍伟
康乐
任天挺
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Hangzhou Confirmware Technology Co ltd
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Hangzhou Confirmware Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • H01L31/1876Particular processes or apparatus for batch treatment of the devices
    • H01L31/188Apparatus specially adapted for automatic interconnection of solar cells in a module
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Wire Processing (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention relates to the technical field related to photovoltaic welding, and discloses a confluence welding device which comprises a welding position, a line body module, a feeding module, a welding strip forming module, a welding strip carrying module, a welding template driving module, a string lifting module and a welding module, wherein at least one welding strip forming module further comprises a bending mechanism and/or a punching mechanism. This device adopts whole quick-witted integral type rack design, newly-increased bypass welds area shaping and punching function, through fixed clamping jaw mechanism, remove clamping jaw mechanism and weld the setting of taking transport mechanism, accurate high-efficient absorption is welded the area and will be welded area transport to the destination, improved and welded the area and placed efficiency, guaranteed production productivity, the structure is ingenious reasonable, the practicality is higher, compare in traditional artifical worker and draw to pull to cut straightly, it is little to have an area, it is straight to weld the area to pull, length is accurate, the human cost etc. effect has been practiced thrift.

Description

Confluence welding device
Technical Field
The invention relates to the technical field related to photovoltaic welding, in particular to a confluence welding device.
Background
Traditional confluence welding structure is simple relatively, and forming mechanism only has T side, M side and L side welding strip mechanism, also can only artifical manual do when needing to do and weld the area version type that punches a hole, welds the version type and can not do with the area version type that punches a hole of welding to the bypass on the present market, leads to the human cost to improve, welding efficiency reduces, and then has reduced the whole production beat and the production quality of subassembly, is unfavorable for the improvement of product competitiveness, to above-mentioned problem, has proposed this application.
Disclosure of Invention
The invention aims to provide a confluence welding device which adopts the design of a whole machine integrated machine frame, reasonably distributes the layout space form of each part in the whole machine, newly adds the functions of a bypass and a punching hole, and provides a device which has the advantages of simple structure, complete functions, high automation degree, multiple compatible versions, quick production rhythm and improvement on the production rhythm and quality of components.
The invention is realized by the following technical scheme.
The invention discloses a confluence welding device which comprises a welding position, a line body module, a feeding module, a welding strip forming module, a welding strip carrying module, a welding template driving module, a string lifting module and a welding module, wherein the line body module comprises a feeding part and a discharging part, the line body module is used for conveying a photovoltaic assembly to the welding position, the feeding module is used for outputting a welding strip, at least four groups of welding strip forming modules are arranged, each welding strip forming module comprises a welding rod placing position, a cutter mechanism, a fixed clamping jaw mechanism, a first movable driving assembly and a movable clamping jaw mechanism, the movable clamping jaw mechanisms are arranged on the first movable driving assemblies, at least one welding strip forming module further comprises a bending mechanism and/or a punching mechanism, a template moving module and a template mechanism are arranged in the welding template driving module, the welding strip carrying module is used for carrying the welding strip finished by the welding strip forming modules to the template mechanism, the string lifting module comprises a lifting mechanism, the lifting mechanism is connected with the string lifting sucker mechanism, the string lifting module is used for lifting a battery string to form a gap between a battery panel driving module, and the welding strip moving module is used for carrying the welding strip to a gap between the welding strip and the welding template.
Further, the welding strip carrying module comprises a first moving mechanism, and a sucker mechanism is mounted on the first moving mechanism.
Further, the welding module comprises a second moving mechanism, and a welding head mechanism is mounted on the second moving mechanism.
Further, the feeding module comprises a welding strip coil installation position, a power assembly and a plurality of guide wheels, and the welding strip is sequentially wound around the guide wheels and then is sent out.
Furthermore, a position adjusting mechanism is arranged in the line body module and used for adjusting four sides of the glass assembly.
Further, still be equipped with in the welding strip shaping module and weld and take whole position mechanism, weld the area and pass through in proper order weld and take whole position mechanism, fixed clamping jaw mechanism and cutter mechanism.
Furthermore, still include in the welding strip shaping module and press claw mechanism, press claw mechanism be used for with the welding strip that removes clamping jaw mechanism and pull out compresses tightly.
Further, the claw pressing mechanism comprises a driving portion and a claw pressing portion, and the driving portion is used for driving at least one portion of the claw pressing portion to be close to or far away from the welding rod placing position.
Further, the line body module still includes jacking transport mechanism, the line body module with there is the difference in height between the welding position, jacking transport mechanism is used for carrying photovoltaic module between the welding position with feed portion and ejection of compact portion.
Further, the template moving modules are symmetrically provided with two groups, and the template mechanisms are installed between the template moving modules.
The invention has the beneficial effects that: this device adopts whole quick-witted integral type rack design, newly-increased bypass welds area shaping and punching function, through fixed clamping jaw mechanism, remove clamping jaw mechanism and weld the setting of taking transport mechanism, accurate high-efficient absorption is welded the area and will be welded area transport to the destination, has improved and has welded the area and place efficiency, has guaranteed the production productivity, and the structure is ingenious reasonable, and the practicality is higher, compares in traditional artifical worker and draws to be dragged and cut straightly, and it is little to have an area, welds the area and drags straightly, and length is accurate, practiced thrift effects such as human cost. And, through welding template drive module, carry the setting of cluster module and welding module, carry out rational distribution to each part in the complete machine, provide a simple structure, multiple functional, degree of automation is high, compatible version type is many, and the fast device that welds that converges of production rhythm improves subassembly production beat and quality.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of a bus bar welding apparatus according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic view of a feed module;
FIG. 5 is a schematic diagram of an arrangement of a welding strip forming module;
FIG. 6 is a schematic view of a solder ribbon handling module;
FIG. 7 is a schematic view of a driving module of the welding template;
FIG. 8 is a schematic diagram of a string lifting module;
FIG. 9 is a schematic view of a welding module;
fig. 10 is a schematic diagram of a basic structure of a solder ribbon forming module.
Detailed Description
The present invention is described in detail below with reference to fig. 1-10.
The first embodiment is as follows:
the invention relates to a confluence welding device, which comprises a frame, wherein a welding position 1, a line body module 10, a feeding module 4, a welding strip forming module 5, a welding strip carrying module 6, a welding template driving module 7, a string lifting module 8 and a welding module 9 are arranged on the frame, the welding position 1 is positioned in the middle of the frame, used for accommodating the battery plate and the glass plate component conveyed by the wire body module 10, the wire body module 10 comprises a feeding part 11 and a discharging part 12, the feeding part 11 and the discharging part 12 are two groups of independent conveying wire bodies, the line body module 10 is used for conveying the photovoltaic module to the welding position 1, the feeding module 4 is used for outputting a welding strip, the welding strip forming modules 5 are at least provided with four groups, the number of the material supply modules 4 is the same as that of the welding strip forming modules 5, the welding strip forming module 5 comprises a welding strip placing position 501, a cutter mechanism 502, a fixed clamping jaw mechanism 503, a first movable driving component 504 and a movable clamping jaw mechanism 505, the movable clamping jaw mechanism 505 is mounted on the first movable driving assembly 504, at least one of the solder strip forming modules 5 further comprises a bending mechanism and/or a punching mechanism, the welding template driving module 7 is provided with a template moving module 71 and a template mechanism 72, referring to fig. 7, the stencil moving module 71 includes symmetrically disposed belt line mechanisms, the stencil mechanism 72 is connected to the stencil moving module 71 through an adapter 73, the solder strip carrying module 6 is used for carrying the solder strip formed by the solder strip forming module 5 to the template mechanism 72, the string lifting module 8 is used for lifting the battery string to form a gap between the battery panel and the glass, the template moving module 71 drives the template mechanism 72 to convey the welding strip to the gap, and the welding module 9 is used for welding the welding strip and a lead of the battery string.
The switching mechanism on the welding template driving mechanism is simultaneously connected with the two belt line modules, the connection mode is ingenious and reasonable, and the pin hinge and the moving pin hinge which are matched with each other in a proper clearance amount are adopted to adapt to poor synchronism of the two driving template servo synchronizers of minus 30mm, so that the linearity of two ends of the template mechanism is improved, and the production is ensured.
The feeding modules 4 are distributed on the outer side of the confluence welding device, as shown in fig. 1, the four groups of feeding modules 4 are respectively positioned at four corners of the rack and are arranged adjacent to the welding strip forming module 5, and therefore space is saved.
The welding strip forming module 5 is also provided with a welding strip aligning mechanism 506, and the welding strip sequentially passes through the welding strip aligning mechanism 506, the fixed clamping jaw mechanism 503 and the cutter mechanism 502.
The solder strip forming module 5 further comprises a claw pressing mechanism 507, and the claw pressing mechanism 507 is used for pressing the solder strip pulled out by the movable clamping jaw mechanism 505.
The claw pressing mechanism 507 includes a driving portion and a claw pressing portion, and the driving portion is used for driving at least one portion of the claw pressing portion to approach or move away from the welding wire placing position 51.
The welding strip forming mechanism comprises an M-side forming mechanism 51; a punching mechanism 52; a bending mechanism 53; a P-side molding mechanism 55; an L-side forming mechanism 56; the T-side forming mechanism 54 and the P-side forming mechanism 55 are bypass forming mechanisms, wherein the M side, the T side and the L side represent different operations for forming the welding strip, and basic forming structures of the P side, the M side, the L side and the T side are a movable clamping jaw mechanism, a pressing jaw mechanism and a fixed clamping jaw mechanism; a welding strip aligning mechanism; a cutter mechanism; a first movement drive assembly 504; a guide rail slider; an electric motor. The first moving driving component 504 is to translate the belt line, the moving clamping jaw mechanism is responsible for clamping the welding strip, then the welding strip is pulled to a proper length from the fixed clamping jaw mechanism, the clamping jaw mechanism compresses the welding strip, the cutter mechanism cuts off the welding strip and then is pushed by the telescopic cylinder to move forwards, the moving clamping jaw mechanism continues to move for a certain stroke to enable the welding strip to be cut off by the cutter mechanism in the fixed clamping jaw mechanism after being stretched for a certain length, the cutter mechanism returns to the original position by the telescopic cylinder after cutting off the welding strip, and the moving clamping jaw mechanism is driven by the belt line driven by the motor to move to a required position along the guide rail slider. When the M-side welding strip is used, if punching is not needed after the M-side forming welding strip completes the action, the formed welding strip is directly conveyed to the bending mechanism by the welding strip conveying mechanism to be bent, and the pressing claw module and the jacking cylinder on the bending mechanism jointly act to complete the bending action component for welding. After the M-side forming welding strip finishes the action, if the welding strip needs to be punched and bent, the welding strip conveying mechanism conveys the welding strip needing to be punched to the punching mechanism from the M side, the tail end of the welding strip is located under the punching male die, the telescopic cylinder in the punching module drives the punching male die to move up and down along the direction of the guide shaft to finish punching, the conveying mechanism conveys the welding strip to the bending mechanism to be bent after punching is finished, and the welding strip conveying mechanism conveys the welding strip to the position where the assembly needs to be placed for welding use after bending is finished.
The solder strip carrying module 6 comprises a first moving mechanism, the first moving mechanism comprises a transverse moving mechanism 61 and a longitudinal moving mechanism 62, a carrying connecting plate 63 is arranged on the first moving mechanism, a sucker mechanism 64 is arranged on the carrying connecting plate 63, the sucker mechanism 64 comprises a plurality of sucker components, and the transverse moving mechanism 61 and the longitudinal moving mechanism 62 are respectively a transverse sliding table mechanism; and the longitudinal sliding table mechanism is used for driving the sucker to move up and down, left and right to a required position by the longitudinal sliding tables.
The string lifting module 8 comprises a lifting mechanism, and the lifting mechanism is connected with a string lifting sucker mechanism 85. Elevating system includes slip table mechanism 81, installs on the slip table mechanism 81 and carries a cluster lift mainboard 82, carries a cluster lift mainboard 82 bottom to install lift cylinder mechanism 83, lift cylinder mechanism 83 is connected with carrying a cluster sucking disc mechanism 85 through sucking disc extension plate mechanism 84.
Welding module 9 includes the second moving mechanism, and the second moving mechanism includes horizontal slip table mechanism 91, vertical slip table mechanism 92 among the second moving mechanism is connected with bonding tool connection bottom plate 93, installs bonding tool mechanism 95 on bonding tool connection bottom plate 93 and is used for control bonding tool mechanism 95's controller mechanism 94 utilizes two slip table mechanisms to accomplish the welding on side-to-side movement to required welding position from top to bottom.
The feed module 4 includes welding strip coil installation position, power component and a plurality of leading wheel, welds the area and walks around in proper order is seen off behind the leading wheel, as figure 4, power component includes the motor, motor drive end mechanism 40 and motor driven end mechanism 42, welding strip coil 43 is installed at welding strip coil installation position, power component drives and welds the area and roll up the rotation, it follows leading wheel 44 in proper order to weld the area, leading wheel 45, leading wheel 46, buffer memory guide rail slider 47, leading wheel 48, leading wheel 49 process, the welding strip that goes out from leading wheel 49 releases stress behind the heavy gyro wheel and makes it be convenient for draw and gets and avoid welding the area to take place distortion.
The wire body module 10 is provided with a position adjusting mechanism, and the position adjusting mechanism is used for adjusting four sides of the glass assembly.
The line body module 10 further comprises a jacking and carrying mechanism, wherein a height difference exists between the line body module 10 and the welding position 1, and the jacking and carrying mechanism is used for carrying the photovoltaic module between the welding position 1 and the feeding part 11 and the discharging part 12.
The jacking and carrying mechanism consists of two groups of screw rod devices and a glass placing platform device, and the screw rod devices comprise horizontal screw rods and vertical screw rods.
The specific working process is as follows: the line body module transports the subassembly of feed portion 11 to the machine intermediate position, and the subassembly is the glass board and places the photovoltaic module on the glass board: the feeding part 11 drives the belt line conveying assembly by a motor, and positions the four edges of the glass assembly by the positioning mechanism after the conveying is in place; the jacking carrying mechanism is responsible for driving the glass placing platform to lift the glass assembly to separate from the 11 belt lines of the feeding part by utilizing the lifting screw rod to drive the glass assembly to complete the position, meanwhile, the glass assembly which is subjected to the flow converging welding in the flow converging welding device can be lifted by the glass placing platform, the screw rod is moved horizontally to enable the glass placing platform to convey one piece of the feeding hole into the rack, one piece of the glass in the rack is conveyed to the upper part of the discharging belt line, and the lifting screw rod is reused to simultaneously enable two pieces of glass to descend onto the platform and the discharging line body in the rack.
The welding strip is pulled out from a material roll by a feeding assembly mechanism integrated in the rack, the welding strip forming mechanism and the welding strip carrying mechanism integrated in the rack complete the forming and carrying of the welding strip, the welding strip carrying mechanism carries the formed welding strip to a welding template for a welding module to use, a string lifting device sucks and lifts a battery string on a glass plate to a certain height to reserve a certain space for facilitating the movement of a welding template driving device between an electromagnetic sheet and assembly glass, then a lifting cylinder drives the battery string to descend to enable leads exposed at two ends of the battery string to cover a confluence welding strip of a template mechanism 72, the template mechanism 72 in the welding template driving module 7 returns to the original position after the welding is completed, the string lifting device descends to enable the battery string to be placed on the glass, and at the moment, a broken sucker on the string lifting device is vacuumized to loosen the battery sheet and then is lifted to the original position by a sliding table mechanism.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. A kind of confluence welding device, characterized by: the photovoltaic assembly welding device comprises a welding position (1), a line body module (10), a feeding module (4), a welding strip forming module (5), a welding strip carrying module (6), a welding template driving module (7), a string lifting module (8) and a welding module (9), wherein the line body module (10) comprises a feeding part (11) and a discharging part (12), the line body module (10) is used for conveying a photovoltaic assembly to the welding position (1), the feeding module (4) is used for outputting a welding strip, and the welding strip forming module (5) is at least provided with four groups which are respectively M-side forming mechanisms (51); a punching mechanism (52); a bending mechanism (53); a P-side molding mechanism (55); an L-side molding mechanism (56); the welding strip forming device comprises a T-side forming mechanism (54), a P-side forming mechanism (55) is a bypass forming mechanism, a welding strip forming module (5) comprises a welding rod placing position (501), a cutter mechanism (502), a fixed clamping jaw mechanism (503), a first movable driving assembly (504) and a movable clamping jaw mechanism (505), the movable clamping jaw mechanism (505) is installed on the first movable driving assembly (504), at least one welding strip forming module (5) further comprises a bending mechanism and a punching mechanism, a template moving module (71) and a template mechanism (72) are arranged in a welding template driving module (7), the welding strip carrying module (6) is used for carrying a welding strip formed by the welding strip forming module (5) to the template mechanism (72), the string lifting module (8) comprises a lifting mechanism, the lifting mechanism is connected with the string lifting sucker mechanism (85), the string module (8) is used for lifting a battery string to form a gap between the battery panel and glass, the template moving module (71) drives the template (72) to convey the welding strip to the gap, and a lead wire of the welding strip is used for carrying out welding with the welding strip and the welding strip.
2. A bus bar welding apparatus according to claim 1, wherein: the welding strip carrying module (6) comprises a first moving mechanism, and a sucker mechanism (64) is mounted on the first moving mechanism.
3. A bus bar welding apparatus according to claim 2, wherein: the welding module (9) comprises a second moving mechanism, and a welding head mechanism (95) is installed on the second moving mechanism.
4. A bus bar welding apparatus according to claim 3, wherein: the feeding module (4) comprises a welding strip coil installation position, a power assembly and a plurality of guide wheels, and the welding strip is sequentially wound around the guide wheels and then is sent out.
5. A bus bar welding device according to any one of claims 1 to 4, characterized in that: the glass component positioning device is characterized in that a positioning mechanism is arranged in the wire body module (10), and the positioning mechanism is used for positioning four edges of a glass component.
6. A bus bar welding apparatus according to claim 5, wherein: still be equipped with in the solder strip shaping module (5) and weld and take whole position mechanism (506), the solder strip passes through in proper order weld and take whole position mechanism (506), fixed clamping jaw mechanism (503) and cutter mechanism (502).
7. A bus bar welding device according to claim 1 or 6, characterized in that: the welding strip forming module (5) further comprises a claw pressing mechanism (57), and the claw pressing mechanism (57) is used for pressing the welding strip pulled out by the movable clamping jaw mechanism (55).
8. A bus bar welding apparatus according to claim 7, wherein: the claw pressing mechanism (57) comprises a driving portion (101) and a claw pressing portion (102), wherein the driving portion (101) is used for driving at least one part of the claw pressing portion (102) to be close to or far away from the welding rod placing position (501) in the direction.
9. A bus bar welding device according to claim 1 or 6, characterized in that: the wire body module (10) further comprises a jacking and carrying mechanism, a height difference exists between the wire body module (10) and the welding position (1), and the jacking and carrying mechanism is used for carrying the photovoltaic assembly between the welding position (1) and the feeding part (11) and the discharging part (12).
10. A bus bar welding apparatus according to any one of claims 1, 6 and 8, wherein: the template moving modules (71) are symmetrically provided with two groups, and the template mechanisms (72) are arranged between the template moving modules (71).
CN202210339524.8A 2022-04-01 2022-04-01 Confluence welding device Active CN114536009B (en)

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WO2018133358A1 (en) * 2017-01-23 2018-07-26 昆山思拓机器有限公司 Fully-automatic cutting and welding apparatus and method for stepped steel plate
CN110112089A (en) * 2019-06-12 2019-08-09 杭州康奋威科技股份有限公司 Cell piece feeder
CN110473932B (en) * 2019-07-23 2020-11-24 杭州康奋威科技股份有限公司 Bus bar welding device and method for solar photovoltaic module
JP2020040877A (en) * 2019-12-03 2020-03-19 坂東機工株式会社 Glass plate processing apparatus
CN111531298A (en) * 2020-06-08 2020-08-14 苏州德睿联自动化科技有限公司 Bus bar bypass welding all-in-one machine and welding method thereof
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CN113410337A (en) * 2021-06-18 2021-09-17 无锡奥特维科技股份有限公司 Bus bar assembly production equipment and bus bar assembly production method
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