CN110649297A - Preparation equipment and preparation method of hydrogen fuel cell membrane electrode assembly - Google Patents
Preparation equipment and preparation method of hydrogen fuel cell membrane electrode assembly Download PDFInfo
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- CN110649297A CN110649297A CN201910945874.7A CN201910945874A CN110649297A CN 110649297 A CN110649297 A CN 110649297A CN 201910945874 A CN201910945874 A CN 201910945874A CN 110649297 A CN110649297 A CN 110649297A
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- 239000000446 fuel Substances 0.000 title claims abstract description 32
- 239000001257 hydrogen Substances 0.000 title claims abstract description 25
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 210000000170 cell membrane Anatomy 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 270
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 230000000007 visual effect Effects 0.000 claims abstract description 62
- 239000012528 membrane Substances 0.000 claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 claims abstract description 35
- 239000003292 glue Substances 0.000 claims abstract description 31
- 230000007306 turnover Effects 0.000 claims abstract description 26
- 210000004027 cell Anatomy 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000010030 laminating Methods 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 5
- 239000011265 semifinished product Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 4
- 238000012937 correction Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000011149 active material Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000003034 coal gas Substances 0.000 description 1
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- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
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- 150000002431 hydrogen Chemical class 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0419—Methods of deposition of the material involving spraying
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Manipulator (AREA)
- Fuel Cell (AREA)
Abstract
The invention belongs to the field of hydrogen fuel cell production equipment, and provides preparation equipment and a preparation method of a hydrogen fuel cell membrane electrode assembly. The preparation equipment integrates a GDL feeding mechanical arm, a material front and back recognition device, a first turnover mechanism, a glue dispensing mechanism, a CCM feeding mechanical arm, a second turnover mechanism, a first robot, a second robot, a first visual positioning device, a second visual positioning device, a third visual positioning device and a laser coding machine. The automatic membrane electrode assembly production line has the advantages that the automation of the links such as feeding, identification, correction, positioning, dispensing, fitting and discharging in the production process of the membrane electrode assembly is realized, the labor cost is reduced, the production efficiency is improved, in addition, each process of the membrane electrode assembly production is accurately controlled, the error is small, and the product quality is improved. In addition, the preparation method of the invention optimizes the operation efficiency of the equipment, further improves the production efficiency, reduces the error rate and reduces the production cost of the membrane electrode assembly.
Description
Technical Field
The invention belongs to the field of hydrogen fuel cell production equipment, and particularly relates to preparation equipment and a preparation method of a hydrogen fuel cell membrane electrode assembly.
Background
The fuel cell is a new power supply with development prospect, and generally takes hydrogen, carbon, methanol, borohydride, coal gas or natural gas as fuel, as a cathode, and takes oxygen in the air as an anode. It is mainly different from a general battery in that an active material of the general battery is previously put inside the battery, and thus the battery capacity depends on the amount of the active material stored; the active materials (fuel and oxidant) of the fuel cell are continuously supplied while reacting, and therefore, such a cell is actually only an energy conversion device. The battery has the advantages of high conversion efficiency, large capacity, high specific energy, wide power range, no need of charging and the like.
The Membrane Electrode Assembly (MEA) is one of the most important components of a hydrogen fuel cell, and is composed of a fuel Cell Chip (CCM), a Gas Diffusion Layer (GDL) and the like, and the working principle of the MEA is that hydrogen and oxygen positioned at two sides of an electrode are subjected to electrochemical reaction through the electrocatalytic action of a cathode and an anode and the proton conductivity of a proton exchange membrane to generate electric energy.
Among them, a fuel Cell Chip (CCM) is a catalyst/proton exchange membrane module prepared by coating a fuel cell catalyst on both sides of a proton exchange membrane. The Gas Diffusion Layer (GDL) is a key component of a fuel cell, and generally consists of carbon paper or carbon cloth, and mainly plays roles of mass transfer, electric conduction, heat transfer, catalyst layer support and water guiding, and at the same time, the Gas diffusion layer plays a role of a medium for diffusing hydrogen/oxygen or methanol/air to the catalyst layer for reaction, and therefore, the Gas diffusion layer must be a porous Gas-permeable material.
At present, in the process of preparing a membrane electrode assembly, GDL and CCM mainly adopt manual feeding, but the production efficiency of the manual feeding mode is not high, and automatic production cannot be realized.
Therefore, a membrane electrode assembly manufacturing apparatus and a manufacturing method thereof are needed.
Disclosure of Invention
The invention aims to provide a preparation device and a preparation method of a membrane electrode assembly of a hydrogen fuel cell, and aims to solve the problems that the membrane electrode assembly of the hydrogen fuel cell is low in production efficiency and cannot be automatically produced in a manual feeding mode.
The invention is realized in such a way that a hydrogen fuel cell membrane electrode assembly preparation device comprises a first material frame for placing GDL overlapping materials, a GDL feeding manipulator, a feeding platform A, a feeding platform B, a material front and back recognition device, a first turnover mechanism for turning GDL materials on the feeding platform A to the feeding platform B, a glue dispensing mechanism, a laminating platform A, a laminating platform B, a second material frame for placing CCM overlapping materials, a CCM feeding manipulator for grabbing CCM materials to the laminating platform A, a second turnover mechanism for turning the materials on the laminating platform A to the laminating platform B, a first robot, a second robot, a first visual positioning device, a second visual positioning device, a third visual positioning device, a laser coding machine, a blanking robot and a controller;
the GDL feeding manipulator, the material front and back recognition device, the first turnover mechanism, the glue dispensing mechanism, the CCM feeding manipulator, the second turnover mechanism, the first robot, the second robot, the first visual positioning device, the second visual positioning device, the third visual positioning device, the laser coding machine and the blanking robot are all electrically connected with the controller;
the first robot is used for grabbing the GDL material for dispensing by the dispensing mechanism and pasting the dispensed GDL material with the CCM material on the pasting platform A;
the second robot is used for grabbing the GDL material for dispensing by the dispensing mechanism and pasting the dispensed GDL material with the GDL and CCM semi-finished product on the pasting platform B;
the first visual positioning device is used for shooting a dispensing mark of the GDL material grabbed by the first robot and sending the dispensing mark to the controller for processing to obtain a dispensing starting point;
the second visual positioning device is used for shooting the dispensing mark of the GDL material grabbed by the second robot and sending the dispensing mark to the controller for processing to obtain a dispensing starting point;
the third visual positioning device is used for shooting the positioning marks of the CCM materials on the laminating platform A and the laminating platform B and sending the positioning marks to the controller for processing to obtain the positioning information of the CCM materials, and the controller controls the first robot and the second robot to correct the positions of the GDL materials grabbed by the first robot and the second robot according to the CCM positioning information to enable the GDL materials to be aligned with the CCM materials;
after the membrane electrode assembly is attached, the second robot grabs the membrane electrode assembly and codes the membrane electrode assembly on the laser coding machine;
and after the code printing is finished, the controller controls the second robot to convey the prepared membrane electrode assembly to a blanking area.
Furthermore, the material front and back side recognition device comprises a color distinguishing sensor, and the colors are different because the materials of the front and back sides of the GDL material are different; the material front and back side identification device sends the detected color information to the controller, and the controller compares the material front and back side identification device information with the pre-stored GDL material color data in the controller so as to judge the front and back sides of the absorbed GDL material; when judging for the front side, controller control GDL material loading manipulator places the GDL material on material loading platform B, when judging for the reverse side, places the GDL material on material loading platform A, starts first tilting mechanism overturns 180 degrees with material loading platform A, makes the GDL material overturn to material loading platform B on.
Further, the preparation equipment also comprises an ultrasonic detector, the ultrasonic detector is provided with a probe capable of transmitting ultrasonic pulses and a receiver for receiving the ultrasonic pulses, the ultrasonic pulses penetrate through the measured GDL material along the thickness direction of the measured GDL material and then enter the receiver, and the thickness of the measured GDL material can be determined by measuring the propagation time of the ultrasonic pulses in the measured material;
the ultrasonic detector sends the thickness information of the GDL material to be detected to the controller, and the controller compares the thickness information with the thickness data of a single GDL material preset in the controller and judges whether more than two GDL materials are absorbed or not;
when the judgment result is that the piece of GDL material is a piece of GDL material, the controller controls the GDL feeding manipulator to place the GDL material on the feeding platform B or the feeding platform A; and when the judgment result is more than two GDL materials, the GDL feeding manipulator puts the GDL materials back to the first material frame and repeatedly adsorbs the GDL materials for many times, and if the GDL materials are still more than two, an alarm device gives an alarm.
Further, the GDL loading manipulator includes a GDL suction mechanism and a moving mechanism for moving the GDL suction mechanism; wherein the GDL suction mechanism comprises a suction device which generates suction force by using Venturi effect, and the suction device is electrically connected with the controller; the suction device is opened to blow out high-speed fluid, low pressure is generated near the high-speed fluid, the low pressure enables gases in different directions to pass through the GDL stacks, the GDL stacks are separated from each other, and the GDL material on the top is adsorbed to the bottom surface of the suction device under the action of suction.
Further, a plurality of vacuum suction holes are formed in the laminating platform A and the laminating platform B, vacuum generators are arranged below the laminating platform A and the laminating platform B, and when the vacuum generators are opened, negative pressure is generated above the vacuum generators to suck flat materials.
Further, the first robot and the second robot are both six-axis robots.
Furthermore, the preparation equipment comprises two third visual positioning devices, and further comprises a first moving manipulator and a second moving manipulator which respectively move the two third visual positioning devices, wherein the first moving manipulator and the second moving manipulator respectively move the two third visual positioning devices, and the two third visual positioning devices respectively shoot marks of the diagonal positions of the CCM material.
The invention also provides a method for preparing a membrane electrode assembly by using the preparation equipment, which at least comprises the following steps:
step S1, placing the GDL stack material into a first material frame, and placing the CCM material into a second material frame;
step S2, a GDL material loading manipulator grabs a piece of GDL material from a first material frame, a material front and back recognition device carries out front and back recognition on the GDL material, and the GDL material on the front side is placed on a loading platform B; placing the GDL material on the reverse side on a feeding platform A, starting a first turnover mechanism, and turning over the GDL material on the feeding platform A onto a feeding platform B; the feeding platform B is moved to the grabbing position 1 so as to be grabbed by the first robot;
step S3, the CCM feeding manipulator grabs a CCM material from the second material frame and places the CCM material on the laminating platform A, and the third visual positioning device shoots and grabs the orientation information of the CCM material;
step S4, the first robot grabs the GDL material from the feeding platform B, the first visual positioning device shoots the dispensing mark of the GDL material grabbed by the first robot and sends the dispensing mark to the controller for processing, and a dispensing starting point is obtained;
step S5, the first robot rotates through the joint, the reverse side of the GDL material on the first robot faces upwards, the controller controls the glue dispensing mechanism to position to the glue dispensing starting point, and then the glue dispensing mechanism dispenses glue on the GDL material according to a preset glue dispensing path; after dispensing is finished, turning over the glue downwards;
step S6, the CCM material on the laminating platform A is photographed by the third visual positioning device to obtain positioning information, the controller controls the first robot to move, the position of the GDL material on the first robot is corrected, and the GDL material and the CCM material are aligned; after alignment, the GDL material is attached to the CCM material by the first robot;
step S7, starting a second turnover mechanism, and turning the GDL and the CCM finished products on the bonding platform A to the bonding platform B;
step S8, repeating step S2; the feeding platform B is moved to the grabbing position 2 so that a second robot can grab the feeding platform B;
step S9, the second robot grabs the GDL material from the feeding platform B, the second visual positioning device shoots the dispensing mark of the GDL material grabbed by the second robot and sends the dispensing mark to the controller for processing, and a dispensing starting point is obtained;
step S10, the second robot rotates through the joint, the reverse side of the GDL material on the second robot faces upwards, the controller controls the glue dispensing mechanism to position to the glue dispensing starting point, and then the glue dispensing mechanism dispenses glue on the GDL material according to a preset glue dispensing path;
step S11, the CCM material on the laminating platform B is photographed by the third visual positioning device to obtain positioning information, the controller controls the second robot to move, the position of the GDL material on the second robot is corrected, and the GDL material and the CCM material are aligned; after contraposition, the GDL material is attached to the semi-finished product of the GDL and the CCM by a second robot, and the membrane electrode assembly is prepared;
s12, grabbing the membrane electrode assembly by the second robot and printing codes on a laser coding machine;
and step S13, after the code printing is finished, the controller controls the second robot to convey the prepared membrane electrode assembly to a blanking area.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a preparation device and a preparation method for preparing a hydrogen fuel cell membrane electrode assembly, wherein the preparation device integrates a GDL feeding mechanical arm, a material front and back recognition device, a first turnover mechanism, a glue dispensing mechanism, a CCM feeding mechanical arm, a second turnover mechanism, a first robot, a second robot, a first visual positioning device, a second visual positioning device, a third visual positioning device and a laser coding machine which are controlled by a controller. The membrane electrode assembly production process has the advantages that the automation of the links such as feeding, identification, correction, positioning, dispensing, fitting and discharging in the membrane electrode assembly production process is realized, the labor cost is reduced, the production efficiency is improved compared with manual production, in addition, each process of the membrane electrode assembly production is accurately controlled, the error is small, and the product quality is improved.
In addition, the preparation method of the invention optimizes the operation efficiency of the preparation equipment, can further improve the production efficiency, reduce the error rate and reduce the production cost of the membrane electrode assembly of the fuel cell.
Drawings
Fig. 1 is a schematic plan view of an apparatus for manufacturing a membrane electrode assembly for a hydrogen fuel cell according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the apparatus of FIG. 1;
fig. 3 is a schematic perspective view of a first material frame and a GDL loading manipulator of the apparatus shown in fig. 1;
FIG. 4 is a schematic perspective view of a loading platform A, a loading platform B and a first turnover mechanism of the apparatus shown in FIG. 1;
fig. 5 is a flow chart for preparing a membrane electrode assembly using the apparatus shown in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, a manufacturing apparatus of a membrane electrode assembly for a hydrogen fuel cell according to an embodiment of the present invention is shown, which includes a machine table 100, a first material frame 1 for placing GDL stack, a GDL feeding manipulator 2, a feeding platform a 31, a feeding platform B32, a material front and back recognition device, an ultrasonic detector 4, a first turnover mechanism 5 for turning a GDL material on the feeding platform a 31 to the feeding platform B32, a dispensing mechanism 6, a bonding platform a71, a bonding platform B72, a second material frame 8 for placing CCM stack, a CCM feeding manipulator for grabbing a CCM material on the bonding platform a71, a second turnover mechanism 9 for turning a material on the bonding platform a71 to the bonding platform B72, a first robot 10, a second robot 20, a first visual positioning device 30, a second visual positioning device 40, a positioning device, and a positioning device for positioning a membrane electrode assembly for a hydrogen fuel cell, A third visual positioning device 50, a laser coding machine 60, a blanking frame 70 and a controller.
The GDL feeding manipulator 2, the material front and back recognition device, the ultrasonic detector 4, the first turnover mechanism 5, the glue dispensing mechanism 6, the CCM feeding manipulator, the second turnover mechanism 9, the first robot 10, the second robot 20, the first visual positioning device 30, the second visual positioning device 40, the third visual positioning device 50, the laser coding machine 60 and the blanking robot are all electrically connected with the controller, and therefore the controller can realize data bidirectional transmission with each device or mechanism.
The first robot 10 is used for grabbing the GDL material for dispensing to the dispensing mechanism 6 and applying the dispensed GDL material to the CCM material on the applying platform a 71. The second robot 20 is used for grabbing the GDL material for dispensing to the dispensing mechanism 6, pasting the dispensed GDL material with the GDL and CCM semi-finished products on the pasting platform B72, grabbing the membrane electrode assembly to print a code on the laser marking machine, and carrying the prepared membrane electrode assembly to a blanking area.
The first visual positioning device 30 is used for shooting the dispensing mark of the GDL material grabbed by the first robot 10, and sending the dispensing mark to the controller for processing to obtain a dispensing starting point.
The second visual positioning device 40 is used for shooting the dispensing mark of the GDL material grabbed by the second robot 20, and sending the dispensing mark to the controller for processing to obtain a dispensing starting point.
The third visual positioning device 50 is used for shooting the positioning marks of the CCM material on the attaching platform a71 and the attaching platform B72, and sending the positioning marks to the controller for processing to obtain the positioning information of the CCM material, and the controller controls the first robot 10 and the second robot 20 to correct the positions of the GDL material grabbed by the first robot 10 and the second robot 20 according to the positioning information of the CCM material, so that the GDL material and the CCM material are aligned.
Specifically, the material front and back side identification device comprises a color distinguishing sensor 80, the colors are different because the materials of the front and back sides of the GDL material are different, the color distinguishing sensor 80 sends the detected color information to the controller, and the controller compares the material front and back side identification device information with the pre-stored GDL material color data, so that the front and back sides of the absorbed GDL material are judged; when judging for the front, controller control GDL material loading manipulator 2 places the GDL material on loading platform B32, when judging for the reverse side, place the GDL material on loading platform A31, start first tilting mechanism 5 and overturn 180 degrees with loading platform A31, make the GDL material overturn to loading platform B72 on, promptly, no matter whether put in first material frame 1 the GDL material and turn over, can both guarantee to place the GDL material on loading platform B32 openly up.
The ultrasonic measuring apparatus 4 has a probe 41 capable of transmitting an ultrasonic pulse and a receiver 42 for receiving the ultrasonic pulse. The ultrasonic pulse passes through the measured GDL material in the thickness direction thereof and then enters the receiver 42, and the thickness of the measured GDL material can be determined by measuring the time during which the ultrasonic pulse travels in the measured material. The ultrasonic detector 4 sends the thickness information of the GDL material to be measured to the controller, and the controller compares the thickness information with the thickness data of a single GDL material preset in the controller and judges whether more than two GDL materials are absorbed or not. When the judgment result is that the piece of GDL material is a piece of GDL material, the controller controls the GDL feeding manipulator 2 to place the GDL material on the feeding platform B32 or the feeding platform A31; and when the judgment result is more than two GDL materials, the GDL material loading manipulator 2 puts the GDL materials back to the first material frame 1, the adsorption is repeated for multiple times, and if the adsorption is performed for multiple times, an alarm device is used for giving an alarm.
The GDL loading robot 2 includes a GDL suction mechanism and a moving mechanism 21 that moves the GDL suction mechanism. The GDL suction mechanism comprises a suction device 22 for generating suction by using Venturi effect, and the suction device 22 is electrically connected with the controller; the suction device 22 is opened to blow out high-speed fluid, and low pressure is generated near the high-speed fluid, and the low pressure enables the gas in different directions to pass through the GDL stacks, so that the GDL stacks are separated from each other, and the GDL material on the top is adsorbed to the bottom surface of the suction device 22 under the action of suction.
A plurality of vacuum suction holes are formed in the attaching platform A71 and the attaching platform B72, vacuum generators are arranged below the attaching platform A71 and the attaching platform B72, and when the vacuum generators are started, negative pressure is generated above the vacuum generators to suck flat materials.
In this embodiment, the first robot 10 and the second robot 20 are both six-axis robots, and the GDL feeding manipulator 2, the CCM feeding manipulator, and the blanking robot are all three-axis robots.
Preferably, the preparation apparatus of the present embodiment includes two third vision positioning devices 50 and a first moving robot and a second moving robot that move the two third vision positioning devices 50, respectively. The first mobile manipulator and the second mobile manipulator respectively move the two third visual positioning devices 50, the marks of the diagonal positions of the CCM material are respectively shot by the two third visual positioning devices 50, and the two third visual positioning devices 50 are used for simultaneously shooting and positioning, so that the efficiency is high, and the beat time is reduced.
Referring to fig. 5, this embodiment further provides a method for preparing a membrane electrode assembly by using the above-mentioned apparatus, which includes the following steps:
step S1, placing the GDL stack material into a first material frame 1, and placing the CCM material into a second material frame 8;
step S2, the GDL feeding manipulator 2 grabs a piece of GDL material from the first material frame 1, if more than two pieces of material are grabbed, the first material frame 1 is returned to suck the GDL material again, and if more than two pieces of material are sucked for multiple times, the alarm device gives an alarm; the material front and back recognition device carries out front and back recognition on the GDL material, and the GDL material on the front side is placed on a feeding platform B32; placing the GDL material on the reverse side on a feeding platform A31, starting a first turnover mechanism 5, and turning over the GDL material on the feeding platform A31 to a feeding platform B32; the feeding platform B is moved to the grabbing position 1 so as to be grabbed by the first robot 10;
step S3, the CCM feeding manipulator 8 grabs a piece of CCM material from the second material frame and places the CCM material on the laminating platform A, and the third visual positioning device 50 shoots and grabs the orientation information of the CCM material;
step S4, the first robot 10 grabs the GDL material from the feeding platform B32, and the first visual positioning device 30 shoots the dispensing mark of the GDL material grabbed by the first robot 10 and sends the dispensing mark to the controller for processing, so as to obtain a dispensing starting point;
step S5, the first robot 10 rotates through the joint, the back surface of the GDL material on the first robot is upward, the controller controls the dispensing mechanism to be positioned to the dispensing starting point, and then the dispensing mechanism 6 dispenses the GDL material according to a preset dispensing path; after dispensing is finished, turning over the glue downwards;
step S6, the third visual positioning device 50 photographs the CCM material on the bonding platform a to obtain positioning information, and the controller controls the first robot 10 to move, and corrects the position of the GDL material thereon, so that the GDL material and the CCM material are aligned; after the alignment, the GDL material is attached to the CCM material by the first robot 10;
step S7, starting the second turnover mechanism 5, and turning the GDL and the CCM finished products on the bonding platform A71 over to the bonding platform B72;
step S8, repeating step S2; the feeding platform B is moved to the grabbing position 2 so as to be grabbed by the second robot 20;
step S9, the second robot 20 grabs the GDL material from the feeding platform B32, and the second visual positioning device 40 shoots the dispensing mark of the GDL material grabbed by the second robot 20 and sends the dispensing mark to the controller for processing, so as to obtain a dispensing starting point;
step S10, the second robot 20 rotates through the joint to make the reverse side of the GDL material face upward, the controller controls the dispensing mechanism 6 to position to the dispensing starting point, and then the dispensing mechanism 6 dispenses the GDL material according to the preset dispensing path;
step S11, the third visual positioning device 50 photographs the CCM material on the bonding platform B72 to obtain positioning information, and the controller controls the second robot 20 to move and correct the position of the GDL material thereon, so that the GDL material and the CCM material are aligned; after alignment, the second robot 20 attaches the GDL material to the semi-finished GDL and CCM to obtain a membrane electrode assembly;
step S12, the second robot 20 grabs the membrane electrode assembly and codes the membrane electrode assembly on a laser coding machine;
step S13, after the code printing is completed, the controller controls the second robot 20 to transport the prepared membrane electrode assembly to the blanking area 70.
In summary, the present embodiment provides a manufacturing apparatus and a method for manufacturing a hydrogen fuel cell membrane electrode assembly, wherein the manufacturing apparatus integrates a GDL feeding manipulator 2, a material front-back recognition device, a first turnover mechanism 5, a glue dispensing mechanism 6, a CCM feeding manipulator, a second turnover mechanism 9, a first robot 10, a second robot 20, a first visual positioning device 30, a second visual positioning device 40, a third visual positioning device 50, and a laser coding machine 60, which are controlled by a controller. The membrane electrode assembly production process has the advantages that the automation of the links such as feeding, identification, correction, positioning, dispensing, fitting and discharging in the membrane electrode assembly production process is realized, the labor cost is reduced, the production efficiency is improved compared with manual production, in addition, each process of the membrane electrode assembly production is accurately controlled, the error is small, and the product quality is improved.
In addition, the preparation method of the embodiment optimizes the operation efficiency of the preparation equipment, can further improve the production efficiency, reduce the error rate and reduce the production cost of the membrane electrode assembly of the fuel cell.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The preparation equipment of the hydrogen fuel cell membrane electrode assembly is characterized by comprising a first material frame for placing GDL stacked materials, a GDL feeding mechanical arm, a feeding platform A, a feeding platform B, a material front and back recognition device, a first turnover mechanism for turning the GDL materials on the feeding platform A to the feeding platform B, a glue dispensing mechanism, a laminating platform A, a laminating platform B, a second material frame for placing CCM stacked materials, a CCM feeding mechanical arm for grabbing CCM materials to the laminating platform A, a second turnover mechanism for turning the materials on the laminating platform A to the laminating platform B, a first robot, a second robot, a first visual positioning device, a second visual positioning device, a third visual positioning device, a laser coding machine and a controller;
the GDL feeding manipulator, the material front and back recognition device, the first turnover mechanism, the glue dispensing mechanism, the CCM feeding manipulator, the second turnover mechanism, the first robot, the second robot, the first visual positioning device, the second visual positioning device, the third visual positioning device, the laser coding machine and the blanking robot are all electrically connected with the controller;
the first robot is used for grabbing the GDL material for dispensing by the dispensing mechanism and pasting the dispensed GDL material with the CCM material on the pasting platform A;
the second robot is used for grabbing the GDL material for dispensing by the dispensing mechanism and pasting the dispensed GDL material with the GDL and CCM semi-finished product on the pasting platform B;
the first visual positioning device is used for shooting a dispensing mark of the GDL material grabbed by the first robot and sending the dispensing mark to the controller for processing to obtain a dispensing starting point;
the second visual positioning device is used for shooting the dispensing mark of the GDL material grabbed by the second robot and sending the dispensing mark to the controller for processing to obtain a dispensing starting point;
the third visual positioning device is used for shooting the positioning marks of the CCM materials on the laminating platform A and the laminating platform B and sending the positioning marks to the controller for processing to obtain the positioning information of the CCM materials, and the controller controls the first robot and the second robot to correct the positions of the GDL materials grabbed by the first robot and the second robot according to the CCM positioning information to enable the GDL materials to be aligned with the CCM materials;
after the membrane electrode assembly is attached, the second robot grabs the membrane electrode assembly and codes the membrane electrode assembly on the laser coding machine;
and after the code printing is finished, the controller controls the second robot to convey the prepared membrane electrode assembly to a blanking area.
2. The apparatus for preparing a membrane electrode assembly for a hydrogen fuel cell according to claim 1, wherein said material front and back side identification means comprises a color discrimination sensor, and the color is different because the material of the GDL material is different between the front and back sides; the material front and back side identification device sends the detected color information to the controller, and the controller compares the material front and back side identification device information with the pre-stored GDL material color data in the controller so as to judge the front and back sides of the absorbed GDL material; when judging for the front side, controller control GDL material loading manipulator places the GDL material on material loading platform B, when judging for the reverse side, places the GDL material on material loading platform A, starts first tilting mechanism overturns 180 degrees with material loading platform A, makes the GDL material overturn to material loading platform B on.
3. The apparatus for manufacturing a membrane electrode assembly for a hydrogen fuel cell according to claim 1 or 2, further comprising an ultrasonic detector having a probe capable of emitting an ultrasonic pulse and a receiver for receiving the ultrasonic pulse, the ultrasonic pulse passing through the measured GDL material in a thickness direction of the measured GDL material and then entering the receiver, wherein the thickness of the measured GDL material can be determined by measuring a time during which the ultrasonic pulse travels in the measured material;
the ultrasonic detector sends the thickness information of the GDL material to be detected to the controller, and the controller compares the thickness information with the thickness data of a single GDL material preset in the controller and judges whether more than two GDL materials are absorbed or not;
when the judgment result is that the piece of GDL material is a piece of GDL material, the controller controls the GDL feeding manipulator to place the GDL material on the feeding platform B or the feeding platform A; and when the judgment result is more than two GDL materials, the GDL feeding manipulator puts the GDL materials back to the first material frame and repeatedly adsorbs the GDL materials for many times, and if the GDL materials are still more than two, an alarm device gives an alarm.
4. The apparatus for producing a hydrogen fuel cell membrane-electrode assembly according to claim 1, wherein the GDL feeding robot comprises a GDL suction mechanism and a moving mechanism that moves the GDL suction mechanism; wherein the GDL suction mechanism comprises a suction device which generates suction force by using Venturi effect, and the suction device is electrically connected with the controller; the suction device is opened to blow out high-speed fluid, low pressure is generated near the high-speed fluid, the low pressure enables gases in different directions to pass through the GDL stacks, the GDL stacks are separated from each other, and the GDL material on the top is adsorbed to the bottom surface of the suction device under the action of suction.
5. The apparatus for preparing a membrane electrode assembly for a hydrogen fuel cell according to claim 1, wherein the bonding platform a and the bonding platform B are respectively provided with a plurality of vacuum suction holes, and a vacuum generator is arranged below the bonding platform a and the bonding platform B, and when the vacuum generator is turned on, a negative pressure is generated above the vacuum generator to suck flat materials.
6. The apparatus for producing a hydrogen fuel cell membrane electrode assembly according to claim 1, wherein each of the first robot and the second robot is a six-axis robot.
7. The apparatus for manufacturing a membrane electrode assembly for a hydrogen fuel cell according to claim 1, wherein said apparatus comprises two third visual alignment means, and said apparatus further comprises a first moving robot and a second moving robot for moving said two third visual alignment means, respectively, and said first moving robot and said second moving robot move said two third visual alignment means, respectively, and said two third visual alignment means capture alignment marks of diagonal positions of the CCM material, respectively.
8. A method of producing a membrane electrode assembly using the production apparatus according to any one of claims 1 to 7, characterized by comprising at least the steps of:
step S1, placing the GDL stack material into a first material frame, and placing the CCM material into a second material frame;
step S2, a GDL material loading manipulator grabs a piece of GDL material from a first material frame, a material front and back recognition device carries out front and back recognition on the GDL material, and the GDL material on the front side is placed on a loading platform B; placing the GDL material on the reverse side on a feeding platform A, starting a first turnover mechanism, and turning over the GDL material on the feeding platform A onto a feeding platform B; the feeding platform B is moved to the grabbing position 1 so as to be grabbed by the first robot;
step S3, the CCM feeding manipulator grabs a CCM material from the second material frame and places the CCM material on the laminating platform A, and the third visual positioning device shoots and grabs the orientation information of the CCM material;
step S4, the first robot grabs the GDL material from the feeding platform B, the first visual positioning device shoots the dispensing mark of the GDL material grabbed by the first robot and sends the dispensing mark to the controller for processing, and a dispensing starting point is obtained;
step S5, the first robot rotates through the joint, the reverse side of the GDL material on the first robot faces upwards, the controller controls the glue dispensing mechanism to position to the glue dispensing starting point, and then the glue dispensing mechanism dispenses glue on the GDL material according to a preset glue dispensing path; after dispensing is finished, turning over the glue downwards;
step S6, the CCM material on the laminating platform A is photographed by the third visual positioning device to obtain positioning information, the controller controls the first robot to move, the position of the GDL material on the first robot is corrected, and the GDL material and the CCM material are aligned; after alignment, the GDL material is attached to the CCM material by the first robot;
step S7, starting a second turnover mechanism, and turning the GDL and the CCM finished products on the bonding platform A to the bonding platform B;
step S8, repeating step S2; the feeding platform B is moved to the grabbing position 2 so that a second robot can grab the feeding platform B;
step S9, the second robot grabs the GDL material from the feeding platform B, the second visual positioning device shoots the dispensing mark of the GDL material grabbed by the second robot and sends the dispensing mark to the controller for processing, and a dispensing starting point is obtained;
step S10, the second robot rotates through the joint, the reverse side of the GDL material on the second robot faces upwards, the controller controls the glue dispensing mechanism to position to the glue dispensing starting point, and then the glue dispensing mechanism dispenses glue on the GDL material according to a preset glue dispensing path;
step S11, the CCM material on the laminating platform B is photographed by the third visual positioning device to obtain positioning information, the controller controls the second robot to move, the position of the GDL material on the second robot is corrected, and the GDL material and the CCM material are aligned; after contraposition, the GDL material is attached to the semi-finished product of the GDL and the CCM by a second robot, and the membrane electrode assembly is prepared;
s12, grabbing the membrane electrode assembly by the second robot and printing codes on a laser coding machine;
and step S13, after the code printing is finished, the controller controls the second robot to convey the prepared membrane electrode assembly to a blanking area.
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