CN113478059A - Automatic welding system for solar cell bypass diode assembly for space - Google Patents
Automatic welding system for solar cell bypass diode assembly for space Download PDFInfo
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- CN113478059A CN113478059A CN202110757547.6A CN202110757547A CN113478059A CN 113478059 A CN113478059 A CN 113478059A CN 202110757547 A CN202110757547 A CN 202110757547A CN 113478059 A CN113478059 A CN 113478059A
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- 238000003466 welding Methods 0.000 title claims abstract description 121
- 230000007306 turnover Effects 0.000 claims abstract description 17
- 230000000007 visual effect Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 39
- 238000001179 sorption measurement Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
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- 210000004027 cell Anatomy 0.000 description 85
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 9
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- 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
- B23K11/00—Resistance welding; Severing by resistance heating
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- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses an automatic welding system for a solar cell bypass diode assembly for a space, which comprises: the device comprises a feeding module, a carrying module, a turning module, a welding module and a visual identification positioning module; the welding module is used for welding the solar cell and the bypass diode assembly; the feeding module is used for conveying the solar cell and the bypass diode assembly; the overturning module is used for overturning the transmitting solar cell and the bypass diode assembly; the visual identification positioning module comprises: a first product identification camera, a second product identification camera, a product positioning camera; the first product identification camera is installed on the bypass diode component carrying robot, the second product identification camera is installed on the solar cell carrying robot, and the product positioning camera is close to the welding module. According to the invention, the functions of automatic feeding, overturning, welding, blanking and the like are realized in the whole process through the carrying module and the overturning module, and the product damage caused by the intermediate turnover storage link and the operations of manual taking, overturning and the like is avoided.
Description
Technical Field
The invention relates to the field of manufacturing of solar cell components for space, in particular to an automatic welding system for a bypass diode component of a solar cell for space.
Background
The space solar cell array is used as a main power supply of the spacecraft, external power output is realized after series-parallel connection of the solar cell modules, each solar cell is reversely connected with one planar bypass diode in parallel, and when a certain cell breaks down or is open-circuited, the bypass diode plays a bypass conduction role, so that the whole series of circuits can continue to work. At present, the triple junction gallium arsenide solar cell becomes the main choice of a space solar cell array due to higher photoelectric conversion efficiency, and the planar silicon bypass diode becomes the main component of the gallium arsenide solar cell array due to better forward voltage drop and better reverse characteristics. After the interconnection sheet is welded with the surface of the planar silicon diode P, N, the interconnection sheet on the N surface of the diode is connected to the P surface of the battery sheet to form a single battery assembly, and the single battery assemblies are mutually connected in series to form a battery string. The current process for making monolithic battery assemblies includes: the production method comprises the following steps of diode P-surface welding, diode N-surface welding and diode and battery P-surface welding, the production mode of the steps is a semi-manual mode at present, the operations of feeding, blanking, transferring, turnover storage and the like are all manual operations, and the following problems exist: the turnover links are multiple, and the production efficiency is lower; the gallium arsenide solar cell is a germanium substrate, is relatively fragile in texture, and is easy to crack or subfissure in the manual taking, overturning, transferring and welding processes; the minimum size of the planar silicon diode reaches millimeter level, the thickness of the interconnection sheet is dozens of microns, the size of a welding piece is small, the precision of manual picking and placing is low, and deformation or damage is easily caused.
A GaAs/Ge unijunction gallium arsenide solar cell resistance welding system (application number 200910199031.3) comprises a welding platform, a welding power supply, a moving platform, a solar cell welding tool, a nitrogen interface, a welding power supply, a control component, a vacuum pump, a welding electrode mechanism and a power supply voltage stabilizer, wherein positive and negative electrodes of a unijunction gallium arsenide solar cell can be respectively connected with silver interconnection sheets through step-by-step fusion welding operation, but manual operation is needed for product placement, the moving distance of the platform needs to be manually input, the welding action needs to be triggered by manually clicking a computer program, and the system does not mention the welding of a bypass diode and a cell.
A double-station automatic welding machine (application number 201620892224.2) of a solar cell module comprises two cell assembling rails which are separately arranged and a feeding rail in the middle, and a manipulator places cells on the feeding rail on the assembling rails on two sides separately, so that the production efficiency is improved. However, the system is suitable for welding the ground silicon solar cell and the tin-copper wire, and is not suitable for welding the space gallium arsenide solar cell and the bypass diode.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic welding system for a solar cell bypass diode assembly for a space. The P surface of the bypass diode is welded, the N surface of the diode is welded, the N surface interconnection piece of the welded diode is welded with the P surface electrode of the battery, the functions of automatic feeding, overturning, visual identification and positioning, welding, blanking and the like are realized, the intermediate turnover storage link is avoided, and the integrated automatic welding of the solar battery assembly is realized.
In order to achieve the above object, the present invention provides an automatic welding system for a bypass diode assembly of a solar cell for a space, the bypass diode assembly comprising: a bypass diode, two interconnect pads; the welding system includes: the device comprises a feeding module, a carrying module, a turning module, a welding module and a visual identification positioning module; the feeding module, the overturning module and the welding module are arranged around the carrying module in a surrounding manner; the welding module is used for welding the solar cell and the bypass diode assembly; the material loading module is used for conveying the solar cell and the bypass diode assembly, and comprises: the bypass diode component feeding mechanism and the solar cell feeding mechanism are respectively arranged on two sides of the welding module; the handling module comprises: a bypass diode component carrying robot and a solar cell carrying robot; the bypass diode assembly carrying robot is provided with a bypass diode assembly taking mechanism for grabbing bypass diode assemblies; the solar cell carrying robot is provided with a solar cell taking mechanism for taking the solar cell; the flipping module includes: the device comprises a turnover platform, a force transmission shaft, a rotary motor, a bearing platform and a bearing platform servo; the overturning platform is connected with the rotating motor through a force transmission shaft; the rotating motor can drive the force transmission shaft to rotate, so that the overturning platform can overturn for 180 degrees along the force transmission shaft; the receiving platform is used for receiving the to-be-welded part which is turned over downwards and transferred by the turning platform, is arranged below the turning platform and is arranged on a servo of the receiving platform; the vision recognition positioning module comprises: a first product identification camera, a second product identification camera, a product positioning camera; the first product identification camera is mounted on the bypass diode component handling robot and used for guiding the bypass diode component handling robot to suck the bypass diode components; the second product identification camera is arranged on the solar cell carrying robot and used for guiding the solar cell carrying robot to absorb the solar cell; the product positioning camera is close to the welding module and used for positioning the positions of the bypass diode assembly and the solar cell in the welding module.
Optionally, the bypass diode assembly reclaiming mechanism includes: the bottom of each telescopic cylinder is connected with a first suction accessory for sucking the bypass diode assembly; the bottom of the solar cell material taking mechanism is provided with a second adsorption piece for absorbing the solar cell; the first adsorption part and the second adsorption part are connected with a vacuum pump through a negative pressure pipeline.
Optionally, the number of the telescopic cylinders is three.
Optionally, the top surface of the turnover platform is provided with a third adsorption part, and the third adsorption part is connected with a vacuum pump through a negative pressure pipeline.
Optionally, the top surface of the bearing platform is provided with a fourth adsorption part, and the fourth adsorption part is connected with the vacuum pump through a negative pressure pipeline.
Optionally, the welding module includes: the resistance pressure welding mechanism, the welding platform and the welding platform are servo; the welding platform is arranged on the welding platform servo, a suction hole is formed in the top surface of the welding platform and connected with a vacuum pump through a negative pressure pipeline so as to fix a part to be welded; and the resistance pressure welding mechanism is arranged above the welding platform and is used for welding the solar cell and the bypass diode assembly.
Optionally, the bypass diode assembly carrying robot and the solar cell carrying robot are both six-axis robots.
Optionally, the first suction piece and the second suction piece are both suction cups.
Optionally, the third adsorption part and the fourth adsorption part are both adsorption holes.
Optionally, the first product identification camera, the second product identification camera, and the product positioning camera are CCD cameras.
Compared with the prior art, the invention has the beneficial effects that:
(1) the turnover module can realize automatic turnover of a system to-be-welded part, and avoids damage to the solar cell and the bypass diode assembly caused by the middle turnover storage link and operations such as manual taking and turnover;
(2) the visual identification positioning module can accurately position the parts to be welded, and can achieve higher welding precision;
(3) the bypass diode assembly transfer robot is provided with the three independent telescopic cylinders, a bypass diode and an interconnection sheet can be transferred at the same time, and then the interconnection sheet is welded with the N surface and the P surface of the bypass diode respectively, so that the welding time of the whole system is reduced.
Drawings
FIG. 1 is a schematic diagram of a soldering process of a solar cell and a bypass diode assembly according to the present invention; FIG. 1A is a schematic structural view of a welded monolithic battery assembly; b of FIG. 1 is a schematic structural diagram of a bypass diode; FIG. 1C is a schematic view of the bonding of the interconnection piece to the P-side of the bypass diode; d of fig. 1 is a schematic view of the bonding of the interconnection piece to the N-face of the bypass diode.
Fig. 2 is a schematic structural diagram of an automatic welding system for a solar cell bypass diode assembly for space use according to the present invention.
Fig. 3 is a schematic diagram of the placement positions of the solar cell and the bypass diode assembly in the tray.
In the figure: 1-a material rack, 2-a bypass diode component material tray, 3-a battery piece material tray, 4-a bypass diode component carrying robot, 41-a bypass diode component material taking mechanism, 42-a first suction part, 43-a first product identification camera, 5-a solar cell carrying robot, 51-a solar cell material taking mechanism, 52-a second suction part, 53-a second product identification camera, 6-a turning platform, 7-a carrying platform servo, 8-a rotary motor, 9-a carrying platform, 10-a resistance pressure welding mechanism, 11-a welding platform servo, 12-a welding platform and 13-a product positioning camera.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1, the current triple junction gallium arsenide solar cell becomes the main choice of the space solar cell array due to its higher photoelectric conversion efficiency, the planar silicon bypass diode becomes the main component of the gallium arsenide solar cell array due to its better forward voltage drop and better reverse characteristic, and the welding process of the two is as follows: (1) welding an interconnection sheet with the P surface of the planar silicon diode; (2) welding the other interconnection sheet with the N surface of the planar silicon diode; (3) and connecting the interconnection sheet of the N surface of the diode with the P surface of the battery sheet to form a single battery assembly, and then connecting the single battery assemblies in series to form a battery string. At present, the production mode of the steps is a semi-manual mode, the operations of feeding, blanking, transferring, storing and the like are all manual operations, and deformation or damage of the solar cell and the bypass diode component is easily caused.
In order to solve the problems, the invention provides an automatic welding system for a solar cell bypass diode assembly for a space, which can realize automatic welding of a solar cell and the bypass diode assembly, avoid product damage caused by intermediate turnover storage links and manual taking, overturning and other operations, and realize high-efficiency and high-precision integrated automatic welding of the solar cell and the diode assembly for the space.
As shown in fig. 2, the welding system of the present invention comprises: the device comprises a feeding module, a carrying module, a turning module, a welding module and a visual identification positioning module; the feeding module, the carrying module, the overturning module, the welding module and the visual identification positioning module are all connected with a computer, and integrated automatic welding of the solar cell module is achieved. Material loading module, upset module, welding module encircle around the transport module, wherein, material loading module is used for conveying solar cell and bypass diode subassembly, includes: the bypass diode component feeding mechanism and the solar cell feeding mechanism are symmetrically arranged on two sides of the welding module; the bypass diode subassembly feed mechanism includes: the device comprises a material rack 1 and a bypass diode component material tray 2 arranged on the material rack 1; the quantity of work or material rest 1 can be a plurality ofly, places or superpose along same direction in proper order and place, the work or material rest is installed on servo sharp module, can drive bypass diode subassembly charging tray 2 and remove to the fixed point position. Bypass diode subassembly charging tray 2 is used for holding bypass diode subassembly, and its material is hard non-deformable, and the preferred rectangle of shape. In the embodiment of fig. 3, the bypass diode assembly tray 2 is provided with three shapes of grooves regularly arranged in a matrix form, and the shapes of the grooves are designed according to the shapes of the bypass diodes and the interconnection pieces respectively, so that the diodes and the interconnection pieces can be arranged in the tray in sequence.
The solar cell feed mechanism includes: the device comprises a material rack 1 and a battery plate tray 3 arranged on the material rack 1; the solar cell feeding mechanism comprises a solar cell feeding mechanism, a bypass diode component feeding mechanism, a cell tray 3, grooves and a bypass diode component feeding mechanism, wherein the cell tray 1 in the solar cell feeding mechanism is the same as the cell tray 1 in the bypass diode component feeding mechanism, the cell tray 3 is used for containing solar cells, grooves in the shape of the solar cells of the same specification are arranged in the cell tray, and the grooves are regularly arranged in a matrix form, so that the solar cells can be sequentially arranged in the cell tray 3.
As shown in fig. 2, the carrier module of the present invention comprises: the bypass diode assembly carrying robot 4 and the solar cell carrying robot 5 are both six-axis robots, and the mechanical arms of the six-axis robots can move and rotate in the space by 360 degrees; the bypass diode assembly carrying robot 4 is provided with a bypass diode assembly taking mechanism 41, the bypass diode assembly taking mechanism 41 comprises a plurality of independent telescopic cylinders, the bottom of each telescopic cylinder is connected with a first suction part 42, and the first suction part is connected with a vacuum pump through an independent negative pressure pipeline and an electromagnetic valve, so that each first suction part 42 can independently suck and grab a bypass diode assembly. The telescopic cylinders are preferably three, and the first suction member is preferably a suction cup. The solar cell carrying robot 5 is provided with a solar cell taking mechanism 51, the bottom of the taking mechanism is provided with a second adsorption part 52, and the second adsorption part is connected with a vacuum pump through a negative pressure pipeline and an electromagnetic valve so as to absorb a solar cell.
The flip module of the present invention comprises: the device comprises a turnover platform 6, a force transmission shaft, a rotary motor 8, a bearing platform 9 and a bearing platform servo 7; wherein, the side of upset platform 6 is connected with rotating motor 8 through the biography power axle, and rotating motor 8 drive biography power axle is rotatory to drive upset platform 6 and carry out 180 upsets along the biography power axle. The overturning platform 6 is parallel to the ground, a third adsorption piece is arranged on the top surface of the overturning platform and communicated with a negative pressure pipeline to fixedly adsorb a part to be welded transmitted to the overturning platform 6. The third adsorption member is preferably a suction hole.
The bearing platform 9 is arranged below the overturning platform, a fourth adsorption piece is arranged on the top surface of the bearing platform and communicated with a negative pressure pipeline, and the fourth adsorption piece is used for fixing a to-be-welded piece which is overturned and transferred downwards by the adsorption overturning platform 6. The fourth adsorption member is preferably a suction hole. The bearing platform 9 is arranged on the bearing platform servo 7, when the overturning platform 6 overturns, the bearing platform servo 7 can drive the bearing platform 9 to move, and enough space is reserved for enabling the overturning platform 6 to overturn.
The welding module of the present invention comprises: the resistance pressure welding mechanism 10, the welding platform 12 and the welding platform servo 11; the welding platform 12 is arranged on the welding platform servo 11, the top surface of the welding platform is provided with a suction hole communicated with the negative pressure pipeline, and the resistance pressure welding mechanism 10 is connected with a welding power supply and arranged above the welding platform 12; the resistance pressure welding mechanism 10 can press the part to be welded downwards, the welding power supply outputs electric pulses, and resistance heat is generated to weld the part to be welded. After welding, the resistance pressure welding mechanism 10 is lifted upwards, the welding platform servo 11 moves out of a welded part, the negative pressure pipeline of the welding platform 12 is closed, and the carrying robot takes away the welded part for next operation.
The visual identification positioning module of the invention comprises: the first product identification camera 43, the second product identification camera 53 and the product positioning camera 13, all of which are connected with the computer by CCD cameras. The first product identification camera 43 is mounted on the bypass diode assembly carrying robot 4, before the bypass diode assembly carrying robot 4 sucks the bypass diode assembly, the first product identification camera 43 takes a picture of the diode assembly and sends the picture to the computer, visual calculation software of the computer identifies and judges whether the diode assembly exists or not and sends the picture to the carrying robot, and the bypass diode assembly carrying robot 4 is guided to capture the diode assembly; the second product recognition camera 53, which operates in a similar manner to the first product recognition camera 43, is mounted on the solar cell transfer robot 5 and guides the solar cell transfer robot 5 to grasp the solar cell.
The two product positioning cameras 13 are respectively installed on two symmetrical sides of the welding platform 12, before the welding platform 12 is placed on the to-be-welded part, the carrying robot carries the to-be-welded solar cell or diode assembly to move to the position above the product positioning camera 13 to photograph the to-be-welded part, the visual calculation software identifies and calculates the space coordinate of the to-be-welded part, the space coordinate is compared with a template stored in the computer, the coordinate deviation between the position of the to-be-welded part and the position of the template at the moment is calculated, the deviation value is sent to the carrying robot, and the to-be-welded part is placed on the welding platform after the robot performs position compensation, so that the to-be-welded part is placed at each time in a consistent position.
The automatic welding system for the solar cell bypass diode assembly for the space comprises the following processes:
(1) the bypass diode component and the solar cell are transported to a fixed point position by the material frame 1 and are grabbed by the bypass diode component carrying robot 4 and the solar cell carrying robot 5;
(2) the carrying robot places the bypass diode and the interconnection sheet on the welding platform 12, the P surface of the bypass diode faces upwards at the moment, and the resistance pressure welding mechanism 10 welds the bypass diode and the interconnection sheet;
(3) the carrying robot transports the P-side welded bypass diode and the interconnection sheet to the overturning platform 6, a negative pressure pipeline of the overturning platform 6 opens the fixedly placed bypass diode and overturns downwards, after the overturning platform 6 is overturned, the bearing platform 9 moves to the position below the overturning platform 6, the negative pressure pipeline of the overturning platform 6 is closed, the negative pressure pipeline of the bearing platform 9 is opened, the bypass diode is transferred to the bearing platform 9, and at the moment, the N surface of the diode faces upwards;
(4) similar to the step (3), the solar cell handling robot 5 operates the solar cells in the tray to the turnover module, and the turnover module turns over the solar cells so that the P surfaces of the solar cells face upward (this step can be omitted if the P surfaces of the solar cells already face upward when the loading module loads materials);
(5) the solar cell transfer robot 5 transports the solar cell to the soldering module; the bypass diode assembly carrying robot 4 conveys the bypass diode and the interconnection sheet on the bearing platform 9 to the welding module, meanwhile, another interconnection sheet is placed, and the welding module welds the interconnection sheet, the solar cell and the N surface of the bypass diode to form a single battery assembly;
(6) and the carrying robot conveys the welded single battery pack back to the battery plate tray 3 and conveys the battery pack away from the tray for subsequent operation.
In conclusion, the automatic welding device realizes the functions of automatic feeding, overturning, welding, blanking and the like in the whole process through the carrying module and the overturning module, avoids product damage caused by the operations of an intermediate turnover storage link, manual taking, overturning and the like, accurately positions products by applying a visual identification technology, can achieve higher assembly precision, and realizes high-efficiency and high-precision integrated automatic welding of a space solar cell and a diode assembly.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. An automatic welding system for a solar cell bypass diode assembly for a space, the bypass diode assembly comprising: a bypass diode, two interconnect pads; characterized in that the welding system comprises: the device comprises a feeding module, a carrying module, a turning module, a welding module and a visual identification positioning module; the feeding module, the overturning module and the welding module are arranged around the carrying module in a surrounding manner;
the welding module is used for welding the solar cell and the bypass diode assembly;
the material loading module is used for conveying the solar cell and the bypass diode assembly, and comprises: the bypass diode component feeding mechanism and the solar cell feeding mechanism are respectively arranged on two sides of the welding module;
the handling module comprises: a bypass diode component carrying robot and a solar cell carrying robot; the bypass diode assembly carrying robot is provided with a bypass diode assembly taking mechanism for grabbing bypass diode assemblies; the solar cell carrying robot is provided with a solar cell taking mechanism for taking the solar cell;
the flipping module includes: the device comprises a turnover platform, a force transmission shaft, a rotary motor, a bearing platform and a bearing platform servo; the overturning platform is connected with the rotating motor through a force transmission shaft; the rotating motor can drive the force transmission shaft to rotate, so that the overturning platform can overturn for 180 degrees along the force transmission shaft; the receiving platform is used for receiving the to-be-welded part which is turned over downwards and transferred by the turning platform, is arranged below the turning platform and is arranged on a servo of the receiving platform;
the vision recognition positioning module comprises: a first product identification camera, a second product identification camera, a product positioning camera; the first product identification camera is mounted on the bypass diode component handling robot and used for guiding the bypass diode component handling robot to suck the bypass diode components; the second product identification camera is arranged on the solar cell carrying robot and used for guiding the solar cell carrying robot to absorb the solar cell; the product positioning camera is close to the welding module and used for positioning the positions of the bypass diode assembly and the solar cell in the welding module.
2. The automatic welding system for a solar cell bypass diode assembly for a space of claim 1, wherein the bypass diode assembly take out mechanism comprises: the bottom of each telescopic cylinder is connected with a first suction accessory for sucking the bypass diode assembly; the bottom of the solar cell material taking mechanism is provided with a second adsorption piece for absorbing the solar cell; the first adsorption part and the second adsorption part are connected with a vacuum pump through a negative pressure pipeline.
3. The automatic welding system for a solar cell bypass diode assembly for space use according to claim 2, wherein the number of the telescopic cylinders is three.
4. The automatic welding system for the solar battery bypass diode assembly for the space as recited in claim 1, wherein a third adsorption member is disposed on the top surface of the turnover platform, and the third adsorption member is connected with a vacuum pump through a negative pressure pipeline.
5. The automatic welding system for the solar battery bypass diode assembly for the space as recited in claim 1, wherein a fourth absorption member is disposed on the top surface of the receiving platform, and the fourth absorption member is connected with a vacuum pump through a negative pressure pipeline.
6. The automated welding system for a space solar cell bypass diode assembly according to claim 1, wherein the welding module comprises: the resistance pressure welding mechanism, the welding platform and the welding platform are servo; the welding platform is arranged on the welding platform servo, a suction hole is formed in the top surface of the welding platform and connected with a vacuum pump through a negative pressure pipeline so as to fix a part to be welded; and the resistance pressure welding mechanism is arranged above the welding platform and is used for welding the solar cell and the bypass diode assembly.
7. The automatic welding system for solar battery bypass diode assemblies for spaces of claim 1, wherein the bypass diode assembly handling robot and the solar battery handling robot are six-axis robots.
8. The automatic welding system for a solar cell bypass diode assembly for space use according to claim 1, wherein the first suction member and the second suction member are suction cups.
9. The automatic welding system of a solar battery bypass diode assembly for space use according to claim 1, wherein the third adsorption member and the fourth adsorption member are suction holes.
10. The automatic welding system for a solar cell bypass diode assembly for space of claim 1, wherein said first product identification camera, said second product identification camera, said product positioning camera are all CCD cameras.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110757547.6A CN113478059B (en) | 2021-07-05 | 2021-07-05 | Automatic welding system for solar cell bypass diode assembly for space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110757547.6A CN113478059B (en) | 2021-07-05 | 2021-07-05 | Automatic welding system for solar cell bypass diode assembly for space |
Publications (2)
| Publication Number | Publication Date |
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| CN113478059A true CN113478059A (en) | 2021-10-08 |
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