A hydrogen fuel cell membrane electrode bonding device

Abstract

The present invention relates to the field of hydrogen fuel cell production equipment, and specifically to a hydrogen fuel cell membrane electrode bonding device, comprising a linear conveyor, a lower limit bonding frame, a first rotating table, a middle limit bonding frame, a second rotating table, an upper limit bonding frame, a material discharge robot and a glue dispensing robot; a plurality of lower limit bonding frames are provided, and are evenly distributed on the conveyor belt of the linear conveyor, and the first rotating table and the second rotating table are symmetrically arranged on both sides of the linear conveyor; a plurality of middle limit bonding frames are provided, and are evenly distributed with the rotation axis of the first rotating table as the center, a plurality of upper limit bonding frames are provided, and are evenly distributed with the rotation axis of the second rotating table as the center, a plurality of material discharge robots are provided, and a plurality of glue dispensing robots are provided. The present invention can realize continuous and automated production of membrane electrodes, effectively improve production efficiency, and save manpower at the same time.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen fuel cell production equipment, and in particular to a hydrogen fuel cell membrane electrode bonding device. Background Art

[0002] The membrane electrode assembly (MEA) is one of the most important components of a hydrogen fuel cell. It consists of a fuel cell chip (CCM), a gas diffusion layer (GDL), and other parts. Its working principle is to generate electricity by causing an electrochemical reaction between hydrogen and oxygen on both sides of the electrodes through the electrocatalytic action of the cathode and anode and the proton conductivity of the proton exchange membrane.

[0003] Among them, the fuel cell chip (CCM, catalyst coated membrane) is a catalyst / proton exchange membrane assembly prepared by coating the fuel cell catalyst on both sides of the proton exchange membrane.

[0004] The gas diffusion layer (GDL) is a key component of the fuel cell, usually composed of carbon paper or carbon cloth. It mainly plays the role of mass transfer, electrical conduction, heat transfer, supporting the catalyst layer, and water conduction. At the same time, the gas diffusion layer acts as a medium to diffuse hydrogen / oxygen or methanol / air to the catalyst layer reaction.

[0005] At present, in the process of preparing membrane electrode assemblies, GDL and CCM mainly use manual loading, but the manual loading method has low production efficiency and cannot achieve automated production.

[0006] Chinese patent number CN110649298B discloses a system and method for preparing a hydrogen fuel cell membrane electrode assembly.

[0007] The preparation system of this solution integrates GDL feeding equipment, CCM feeding equipment, dispensing mechanism, flipping and laminating mechanism and inkjet printer.

[0008] This enables automation of all links in the membrane electrode assembly production process, reduces labor costs, and improves production efficiency compared to manual production. In addition, the spatial layout of each mechanism and workstation of the system is reasonable, the overall structure is compact, and the space occupied is small.

[0009] In addition, the preparation method optimizes the operating efficiency of the preparation system, can further improve production efficiency, reduce the error rate and reduce the production cost of the membrane electrode assembly of the fuel cell.

[0010] Although the above-mentioned device realizes automatic bonding of membrane electrodes, the bonding steps are cumbersome, resulting in the CCM material and GDL material being bonded in sequence each time, and the materials being discharged, glued and then bonded. Each device has to wait for a long interval each time bonding, making it impossible to achieve fast and continuous bonding operations, which greatly affects production efficiency during the production process. Summary of the invention

[0011] In view of the above problems, a hydrogen fuel cell membrane electrode bonding device is provided. Through the cooperation of a linear conveyor, a lower limit bonding frame, a first rotating table, a middle limit bonding frame, a second rotating table, an upper limit bonding frame, a material discharge robot and a dispensing robot, continuous and automated production of membrane electrodes can be realized, which can effectively improve production efficiency.

[0012] In order to solve the problems of the prior art, the present invention provides a hydrogen fuel cell membrane electrode bonding device, including a linear conveyor, a lower limit bonding frame, a first rotating table, a middle limit bonding frame, a second rotating table, an upper limit bonding frame, a material discharge robot and a dispensing robot; the linear conveyor is horizontally arranged on a workbench; a plurality of lower limit bonding frames are provided, and are evenly distributed on the conveyor belt of the linear conveyor, and the lower limit bonding frame is used for limiting the placement of cathode GDL material; the first rotating table and the second rotating table are symmetrically arranged on both sides of the linear conveyor; a plurality of middle limit bonding frames are provided, and are evenly distributed with the rotation axis of the first rotating table as the center, and the middle limit bonding frame and the first rotating table are arranged at the same time. The movable end is fixedly connected, and the middle limit fitting frame is arranged above the lower limit fitting frame, and the middle limit fitting frame is used for limiting the placement of CCM material; there are multiple upper limit fitting frames, and they are evenly distributed with the rotation axis of the second rotating table as the center, the upper limit fitting frame is fixedly connected to the movable end of the second rotating table, the upper limit fitting frame is arranged above the middle limit fitting frame, and the upper limit fitting frame is used for limiting the storage of anode GDL material; there are multiple material discharge robots, and each of the lower limit fitting frame, the middle limit fitting frame and the upper limit fitting frame is provided with a material discharge robot; there are multiple glue dispensing robots, and each of the lower limit fitting frame and the middle limit fitting frame is provided with a glue dispensing robot.

[0013] Preferably, a positioning and correction seat is provided at the bottom of the lower limit fitting frame, the positioning and correction seat is fixedly connected to the linear conveyor, and a plurality of first-row pressure holes are provided inside the lower limit fitting frame.

[0014] Preferably, a movable base is provided inside the positioning and correction seat, movable springs are provided on both sides of the movable base, the end of the movable spring away from the movable base is in contact with the positioning and correction seat, a positioning bracket is provided on the top of the movable base, and a positioning bayonet is provided on the side of the positioning bracket. The positioning and correction seat also includes a correction insertion device installed on the linear conveyor.

[0015] Preferably, the correction and insertion device includes a fixed mounting plate installed on the side of the linear conveyor, an interlaced correction frame is slidably installed on the fixed mounting plate, an interlaced correction block is provided at the abutting end of the interlaced correction frame, a first linear drive is installed on the fixed mounting plate, and the output end of the first linear drive is connected to the interlaced correction frame.

[0016] Preferably, a plurality of second rows of pressure holes are provided inside the middle limit fitting frame, limit slide rails are symmetrically provided on both sides of the middle limit fitting frame, horizontal support plates are installed inside the limit slide rails, and the middle limit fitting frame also includes an opening and closing device for driving the horizontal support plates to move.

[0017] Preferably, the opening and closing device includes a limiting guide rod installed on the first rotating table, a synchronous connecting block is installed on the limiting guide rod, a pushing rod is provided at the bottom of the synchronous connecting block, connecting rods are installed at both ends of the synchronous connecting block, the end of the connecting rod away from the synchronous connecting block is connected to the horizontal support plate, a pushing spring is also installed between the limiting guide rod and the synchronous connecting block, and the opening and closing device also includes a pushing and regulating device for pushing the synchronous connecting block to move.

[0018] Preferably, the pushing and pressing regulating device includes a ball screw slide arranged below the synchronous connecting block, a docking push block is installed at the movable end of the ball screw slide, and a limiting docking groove is provided on the docking push block.

[0019] Preferably, a pushing and adsorption plate is installed inside the upper limit fitting frame, and a plurality of docking pushing columns are installed on the top of the pushing and adsorption plate. One end of the docking pushing column away from the pushing and adsorption plate extends upward through the top of the upper limit fitting frame. A return spring is provided between the docking pushing column and the upper limit fitting frame. The upper limit fitting frame also includes a pushing device installed above the docking pushing column.

[0020] Preferably, the pushing device includes a hanging bracket arranged on the docking pushing column, a second linear drive is installed on the hanging bracket, a pushing contact plate is installed on the output end of the second linear drive, and a pressure sensor is installed on the pushing contact plate.

[0021] Preferably, a docking adsorption plate is installed on the movable end of the unloading robot, and the docking adsorption plate matches the shapes of the lower limit fitting frame, the middle limit fitting frame and the upper limit fitting frame.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The positions of the lower limit laminating frame, the middle limit laminating frame and the upper limit laminating frame are continuously adjusted by the linear conveyor, the first rotating table and the second rotating table, so that the lower limit laminating frame, the middle limit laminating frame and the upper limit laminating frame are continuously moved to the laminating position. At the same time, the corresponding cathode GDL material, CCM material and anode GDL material are continuously placed in the lower limit laminating frame, the middle limit laminating frame and the upper limit laminating frame by the material discharging robot, and the dispensing robot will continuously dispense glue to the placed cathode GDL material and CCM material. This device realizes the automation and continuity of membrane electrode laminating.

[0024] During the process of stacking and bonding membrane electrodes, various components work together, and the material discharge and glue dispensing steps are carried out simultaneously, which greatly shortens the bonding cycle and reduces the waiting time of the device, thereby significantly improving the overall production efficiency.

[0025] 2. Compared with the traditional step-by-step lamination method, this device simplifies the lamination steps through precise mechanical design and automated control.

[0026] The ingenious combination of the rotating table and the limiting bonding frame ensures the accurate positioning of the cathode GDL material, CCM material and anode GDL material during the bonding process, improves the bonding accuracy and consistency, and is beneficial to improving the quality of the membrane electrode.

[0027] 3. The continuous operation of the material discharging robot and the glue dispensing robot in this device provides a continuous supply of material preparation for stacking and bonding, ensuring the continuity of the bonding process.

[0028] This design not only reduces manual intervention and lowers the difficulty of operation, but also optimizes the production process, making the production of hydrogen fuel cells more efficient and orderly.

[0029] At the same time, it also provides strong technical support for large-scale, industrialized production of hydrogen fuel cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic diagram of a hydrogen fuel cell membrane electrode bonding device.

[0031] Figure 2 It is a three-dimensional schematic diagram of a linear conveyor and a lower limit bonding frame in a hydrogen fuel cell membrane electrode bonding device.

[0032] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0033] Figure 4 It is a three-dimensional schematic diagram of a lower limit bonding frame and cathode GDL material in a hydrogen fuel cell membrane electrode bonding device.

[0034] Figure 5 A three-dimensional diagram of the first rotating table and the middle limit bonding frame in the hydrogen fuel cell membrane electrode bonding device Figure 1 .

[0035] Figure 6 A three-dimensional diagram of the first rotating table and the middle limit bonding frame in the hydrogen fuel cell membrane electrode bonding device Figure 2 .

[0036] Figure 7 The invention is a three-dimensional schematic diagram of the structure of the first rotating platform and the middle limit bonding frame in the hydrogen fuel cell membrane electrode bonding device.

[0037] Figure 8 The present invention is a three-dimensional schematic diagram of a push-pressure regulating device in a hydrogen fuel cell membrane electrode bonding device.

[0038] Fig. 9 The invention is a three-dimensional schematic diagram of a second rotating table and an upper limit bonding frame in a hydrogen fuel cell membrane electrode bonding device.

[0039] Fig.10 The present invention is a three-dimensional schematic diagram of a pushing device in a hydrogen fuel cell membrane electrode bonding device.

[0040] The numbers in the figure are:

[0041] 1. Linear conveyor; 11. Lower limit fitting frame; 12. Positioning correction seat; 121. Fixed installation frame; 122. Movable base; 123. Movable spring; 124. Positioning bracket; 1241. Positioning bayonet; 125. Correction plug-in device; 1351. Fixed installation plate; 1352. First linear drive; 1353. Insertion correction frame; 1354. Insertion correction block; 2. First rotating table; 21. Middle limit fitting frame; 22. Limit slide rail; 23. Horizontal support plate; 24. Opening and closing device; 241. Limit guide rod; 242. Synchronous connecting block; 2421. Push rod; 243. Connecting rod; 244 , pushing spring; 245, pushing control device; 2451, ball screw slide; 2452, docking push block; 2453, limit docking groove; 3, second rotating table; 31, upper limit fitting frame; 311, pushing adsorption plate; 3111, docking pushing column; 3112, reset spring; 3113, adsorption hole; 312, pushing device; 3121, lifting bracket; 3122, second linear drive; 3123, pushing contact plate; 3124, pressure sensor; 4, unloading robot; 41, docking adsorption plate; 5, dispensing robot; 6, cathode GDL material; 7, CCM material; 8, anode GDL material. DETAILED DESCRIPTION

[0042] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] See also Figures 1 to 10 As shown, a hydrogen fuel cell membrane electrode bonding device includes a linear conveyor 1, a lower limit bonding frame 11, a first rotating table 2, a middle limit bonding frame 21, a second rotating table 3, an upper limit bonding frame 31, a material discharge robot 4 and a dispensing robot 5; the linear conveyor 1 is horizontally arranged on a workbench; a plurality of lower limit bonding frames 11 are provided, and are evenly spaced on the conveyor belt of the linear conveyor 1, and the lower limit bonding frame 11 is used for limiting the placement of cathode GDL material 6; the first rotating table 2 and the second rotating table 3 are symmetrically arranged on both sides of the linear conveyor 1; a plurality of middle limit bonding frames 21 are provided, and are evenly distributed with the rotation axis of the first rotating table 2 as the center, the middle limit bonding frame 21 is fixedly connected to the movable end of the first rotating table 2, and the middle limit bonding frame 21 is fixedly connected to the movable end of the first rotating table 2. The positioning fitting frame 21 is arranged above the lower limit fitting frame 11, and the middle limit fitting frame 21 is used for limiting the placement of the CCM material 7; there are multiple upper limit fitting frames 31, and they are evenly distributed with the rotation axis of the second rotating table 3 as the center, the upper limit fitting frame 31 is fixedly connected to the movable end of the second rotating table 3, the upper limit fitting frame 31 is arranged above the middle limit fitting frame 21, and the upper limit fitting frame 31 is used for limiting the storage of the anode GDL material 8; there are multiple material discharge robots 4, and a material discharge robot 4 is provided next to the lower limit fitting frame 11, the middle limit fitting frame 21 and the upper limit fitting frame 31; there are multiple glue dispensing robots 5, and a glue dispensing robot 5 is provided next to the lower limit fitting frame 11 and the middle limit fitting frame 21.

[0044] The linear conveyor 1 is horizontally arranged on a workbench, and lower limit laminating frames 11 are evenly spaced on the conveyor belt of the linear conveyor 1 for limiting the placement of the cathode GDL material 6 .

[0045] The first rotating table 2 and the second rotating table 3 are symmetrically arranged on both sides of the linear conveyor 1, and are respectively connected to the middle limit laminating frame 21 and the upper limit laminating frame 31, so as to adjust the position of the material.

[0046] The middle position limiting fitting frame 21 and the upper position limiting fitting frame 31 are used for limiting the placement of the CCM material 7 and the anode GDL material 8 respectively.

[0047] The material placing robot 4 places the cathode GDL material 6 , the CCM material 7 and the anode GDL material 8 into the corresponding lower limit laminating frame 11 , the middle limit laminating frame 21 and the upper limit laminating frame 31 , respectively.

[0048] The glue dispensing robot 5 performs glue dispensing on the cathode GDL material 6 and CCM material 7 placed at the designated position to prepare for the subsequent bonding.

[0049] The linear conveyor 1 drives the lower limit laminating frame 11 to move to the laminating area.

[0050] At the same time, the first rotating table 2 and the second rotating table 3 rotate synchronously, driving the middle limit laminating frame 21 and the upper limit laminating frame 31 to move to a laminating position aligned with the lower limit laminating frame 11 .

[0051] At this time, the middle position-limiting fitting frame 21 is located directly above the lower position-limiting fitting frame 11 , and the upper position-limiting fitting frame 31 is located directly above the middle position-limiting fitting frame 21 .

[0052] The upper limit fitting frame 31 positions the anode GDL material 8 by adsorption and presses downward, so that the anode GDL material 8 contacts and fits with the CCM material 7 in the middle limit fitting frame 21 .

[0053] Due to the glue dispensing process, the anode GDL material 8 and the CCM material 7 can be firmly bonded together.

[0054] Subsequently, the middle limit fitting frame 21 opens the bottom, and the upper limit fitting frame 31 continues to push the anode GDL material 8 and CCM material 7 downward, so that they pass through the middle limit fitting frame 21 and come into contact with the cathode GDL material 6 in the lower limit fitting frame 11 to obtain a membrane electrode.

[0055] After the lamination is completed, the upper limit lamination frame 31 and the middle limit lamination frame 21 are reset.

[0056] The linear conveyor 1 transports the bonded membrane electrode to the area to be processed for subsequent processing.

[0057] During the process of stacking and bonding the membrane electrode, the material discharging robot 4 and the glue dispensing robot 5 will continue to work to prepare the stacking and bonding materials.

[0058] This can ensure the continuity of stacking and laminating, effectively improving work efficiency.

[0059] This device realizes an automated and continuous membrane electrode bonding process, greatly simplifies the bonding steps, improves production efficiency, and provides strong support for the production of hydrogen fuel cells.

[0060] See also Figure 1 and Figure 2 As shown, a positioning and correction seat 12 is provided at the bottom of the lower limit laminating frame 11 , and the positioning and correction seat 12 is fixedly connected to the linear conveyor 1 . A plurality of first-row pressing holes are provided inside the lower limit laminating frame 11 .

[0061] The lower limit laminating frame 11 has a space inside for placing the cathode GDL material 6. When the linear conveyor 1 drives the lower limit laminating frame 11 to move to the laminating position, the positioning and correction seat 12 can effectively position and adjust the position of the lower limit laminating frame 11 to ensure that the lower limit laminating frame 11 is located at the specified position during laminating, thereby ensuring the laminating effect of the cathode GDL material 6. The first row of pressure holes are evenly distributed on the side wall of the lower limit laminating frame 11. During the laminating process, it can be ensured that when the cathode GDL material 6 and the CCM material 7 are close to each other, the air between them can flow out from the first row of pressure holes, thereby increasing the stability during laminating.

[0062] See also Figures 2 to 4 As shown, a movable base 122 is provided inside the positioning and correction seat 12, movable springs 123 are provided on both sides of the movable base 122, and one end of the movable spring 123 away from the movable base 122 is in contact with the positioning and correction seat 12, a positioning bracket 124 is provided on the top of the movable base 122, and a positioning bayonet 1241 is provided on the side of the positioning bracket 124, and the positioning and correction seat 12 also includes a correction insertion device 125 installed on the linear conveyor 1.

[0063] A movable base 122 is provided inside the positioning and correction seat 12 , and the movable base 122 is used for fixing and installing the lower limit fitting frame 11 .

[0064] Movable springs 123 are disposed on both sides of the movable base 122 . One end of the movable spring 123 abuts against the movable base 122 , and the other end abuts against the inner wall of the positioning and correcting seat 12 .

[0065] Through the elastic action of the movable spring 123 , the movable base 122 has a certain movement gap in the positioning and correction seat 12 .

[0066] A positioning bracket 124 is provided on the top of the movable base 122 , and a positioning bayonet 1241 is designed on the side of the bracket for cooperating with the correction insertion device 125 to achieve precise positioning.

[0067] The correction and insertion device 125 is installed on the linear conveyor 1. When the linear conveyor 1 moves, it will drive the positioning and correction seat 12 and the internal movable base 122 and the lower limit fitting frame 11 to move synchronously.

[0068] Driven by the linear conveyor 1 , the positioning and correction seat 12 and the internal movable base 122 and the lower limit laminating frame 11 are transported to the designated laminating position.

[0069] When the linear conveyor 1 stops moving, the working end of the correction and insertion device 125 begins to extend and is accurately inserted into the positioning bayonet 1241 on the side of the positioning bracket 124 .

[0070] Once the working end of the correction and insertion device 125 is inserted into the positioning bayonet 1241, the movable base 122 will be guided to move. After the movable base 122 is guided and positioned by the correction and insertion device 125, the lower limit fitting frame 11 is also accurately corrected to the specified position.

[0071] So as to achieve that the cathode GDL material 6 in the lower limit laminating frame 11 is in the best laminating position.

[0072] See also Figure 2 and Figure 3 As shown, the correction and insertion device 125 includes a fixed mounting plate 1351 installed on the side of the linear conveyor 1, an insertion correction frame 1353 is slidably installed on the fixed mounting plate 1351, an insertion correction block 1354 is provided at the abutting end of the insertion correction frame 1353, a first linear drive 1352 is installed on the fixed mounting plate 1351, and an output end of the first linear drive 1352 is connected to the insertion correction frame 1353.

[0073] When the linear conveyor 1 starts to move, it will drive the positioning and correction seat 12 and the movable base 122 inside it and the lower limit laminating frame 11 to move synchronously.

[0074] Driven by the linear conveyor 1, the positioning and correction seat 12 and the lower limit bonding frame 11 are accurately transported to the designated bonding position.

[0075] Once the linear conveyor 1 stops moving, the correction and insertion device 125 begins to play its role.

[0076] The first linear driver 1352 is started to push the insertion correction frame 1353 to slide, thereby driving the insertion correction block 1354 to move toward the positioning bayonet 1241 of the positioning bracket 124 .

[0077] When the insertion correction block 1354 is accurately inserted into the positioning bayonet 1241, it will generate a guiding force on the movable base 122 to make it move along the predetermined direction.

[0078] Under the guidance of the interlaced correction block 1354, the movable base 122 is precisely positioned to the desired position.

[0079] As the positioning of the movable base 122 is completed, the lower limit laminating frame 11 is also accurately corrected to the designated laminating position.

[0080] In this way, the cathode GDL material 6 in the lower limit laminating frame 11 can be in an optimal laminating state, thereby ensuring the accuracy and efficiency of the entire production process.

[0081] See also Figure 1 , Figure 5 and Figure 6As shown, a plurality of second rows of pressure holes are provided inside the middle limit fitting frame 21, and limit slide rails 22 are symmetrically provided on both sides of the middle limit fitting frame 21. Horizontal support plates 23 are installed inside the limit slide rails 22, and the middle limit fitting frame 21 also includes an opening and closing device 24 for driving the horizontal support plates 23 to move.

[0082] The material placing robot 4 places the cathode GDL material 6 , the CCM material 7 and the anode GDL material 8 into the lower limit laminating frame 11 , the middle limit laminating frame 21 and the upper limit laminating frame 31 respectively.

[0083] The glue dispensing robot 5 performs glue dispensing on the cathode GDL material 6 and CCM material 7 placed at the designated position to prepare for the subsequent bonding.

[0084] The linear conveyor 1 drives the lower limit laminating frame 11 to move to the laminating area.

[0085] At the same time, the first rotating platform 2 and the second rotating platform 3 rotate synchronously, driving the middle position limiting laminating frame 21 and the upper position limiting laminating frame 31 to move to appropriate positions.

[0086] At this time, the middle position-limiting fitting frame 21 is located directly above the lower position-limiting fitting frame 11 , and the upper position-limiting fitting frame 31 is located directly above the middle position-limiting fitting frame 21 .

[0087] The upper limit fitting frame 31 positions the anode GDL material 8 by adsorption and presses downward, so that the anode GDL material 8 contacts and fits with the CCM material 7 in the middle limit fitting frame 21 .

[0088] The second row of pressure holes are evenly distributed on the side wall of the middle limit bonding frame 21. During the bonding process of the anode GDL material 8 and the CCM material 7, the second row of pressure holes inside the middle limit bonding frame 21 helps to discharge the gas between the anode GDL material 8 and the CCM material 7, ensuring the tightness and stability of the bonding.

[0089] At the same time, the horizontal support plate 23 is kept in a closed state under the control of the opening and closing device 24, thereby effectively supporting the CCM material 7.

[0090] When the anode GDL material 8 and the CCM material 7 are firmly bonded together, the opening and closing device 24 controls the two horizontal support plates 23 to expand and move, so that the bottom of the middle limit laminating frame 21 is opened.

[0091] The upper limit fitting frame 31 continues to push the anode GDL material 8 and the CCM material 7 downward, so that the anode GDL material 8 and the CCM material 7 pass through the middle limit fitting frame 21 and contact and fit with the cathode GDL material 6 in the lower limit fitting frame 11, thereby manufacturing a membrane electrode.

[0092] See also Figure 6 and Figure 7As shown, the opening and closing device 24 includes a limiting guide rod 241 installed on the first rotating table 2, a synchronous connecting block 242 is installed on the limiting guide rod 241, a pushing rod 2421 is provided at the bottom of the synchronous connecting block 242, connecting rods 243 are installed at both ends of the synchronous connecting block 242, and the end of the connecting rod 243 away from the synchronous connecting block 242 is connected to the horizontal support plate 23, and a pushing spring 244 is also installed between the limiting guide rod 241 and the synchronous connecting block 242. The opening and closing device 24 also includes a pushing and regulating device 245 for pushing the synchronous connecting block 242 to move.

[0093] In the initial state, the horizontal support plate 23 at the bottom of the middle limit laminating frame 21 remains closed, effectively supporting the CCM material 7 .

[0094] At this time, the push spring 244 is in a natural state, and the synchronous connecting block 242, the connecting rod 243, and the push rod 2421 are all in relatively fixed positions.

[0095] When the horizontal support plate 23 at the bottom of the middle limit laminating frame 21 needs to be opened, the pushing and regulating device 245 starts to work, and the pushing and regulating device 245 pushes the pushing rod 2421 to move.

[0096] The movement of the push rod 2421 drives the synchronous connection block 242 to move synchronously.

[0097] During this process, the push spring 244 is gradually compressed and elastic potential energy is stored.

[0098] The movement of the synchronous connection block 242 simultaneously drives the connection rods 243 at both ends thereof to move synchronously.

[0099] The other end of the connecting rod 243 is connected to the horizontal support plate 23, so the movement of the connecting rod 243 pushes the horizontal support plate 23 to perform expansion movement.

[0100] As the horizontal support plate 23 expands, the bottom of the middle position limiting laminating frame 21 is opened.

[0101] At this time, the CCM material 7 originally supported by the horizontal support plate 23 loses its supporting force, so that the CCM material 7 can fall and move.

[0102] After the lamination of the CCM material 7 is completed, the push regulating device 245 will be reset, so that the push rod 2421, the synchronous connection block 242, the connection rod 243 and the horizontal support plate 23 are restored to the initial closed state.

[0103] During this process, the push spring 244 releases its stored elastic potential energy to help these components reset.

[0104] See also Figure 6 and Figure 8As shown, the push-pressing regulating device 245 includes a ball screw slide 2451 arranged below the synchronous connection block 242 , and a docking push block 2452 is installed at the movable end of the ball screw slide 2451 , and a limiting docking groove 2453 is provided on the docking push block 2452 .

[0105] When the horizontal support plate 23 at the bottom of the middle limit fitting frame 21 needs to be opened, the push regulating device 245 starts to work, and the ball screw slide 2451 responds immediately after receiving the instruction.

[0106] The movable end of the ball screw slide 2451 will drive the docking push block 2452 to move accordingly, and the limit docking groove 2453 on the docking push block 2452 will dock with the structure below the synchronous connection block 242 and apply thrust.

[0107] This thrust is transmitted to the synchronous connecting block 242 through the pushing rod 2421 , causing it to move along the limiting guide rod 241 .

[0108] During the movement of the synchronous connecting block 242 , the push spring 244 is gradually compressed to store elastic potential energy.

[0109] The movement of the synchronous connection block 242 simultaneously drives the connection rods 243 at both ends thereof to move synchronously, and the other end of the connection rod 243 pushes the horizontal support plate 23 to perform expansion movement.

[0110] See also Figure 1 and Fig. 9 As shown, a pushing adsorption plate 311 is installed inside the upper limit fitting frame 31, and a plurality of docking pushing columns 3111 are installed on the top of the pushing adsorption plate 311. One end of the docking pushing column 3111 away from the pushing adsorption plate 311 passes through the top of the upper limit fitting frame 31 and extends upward. A return spring 3112 is provided between the docking pushing column 3111 and the upper limit fitting frame 31. The upper limit fitting frame 31 also includes a pushing device 312 installed above the docking pushing column 3111.

[0111] A plurality of suction cups are disposed on the pushing and adsorption plate 311 .

[0112] First, the anode GDL material 8 is placed in the upper limit fitting frame 31 , and is adsorbed by a plurality of suction cups on the pushing adsorption plate 311 , so that the anode GDL material 8 is closely attached to the bottom of the pushing adsorption plate 311 .

[0113] The suction cup design on the push adsorption plate 311 ensures the stability and accuracy of the anode GDL material 8 in subsequent operations.

[0114] When the upper limit laminating frame 31 , the middle limit laminating frame 21 and the lower limit laminating frame 11 are all moved to the preset laminating positions, the laminating process starts.

[0115] At this time, the pushing end of the pushing device 312 starts to move downward and comes into conflict with the docking pushing column 3111.

[0116] After being pushed, the docking pushing column 3111 will overcome the elastic force of the return spring 3112 to press downward, and at the same time drive the pushing adsorption plate 311 and the adsorbed anode GDL material 8 to be pressed downward together.

[0117] As the pushing adsorption plate 311 is pressed downward, the anode GDL material 8 is first bonded to the CCM material 7 inside the middle limit bonding frame 21 .

[0118] This process ensures close contact and good alignment between the anode GDL material 8 and the CCM material 7 .

[0119] After the anode GDL material 8 and the CCM material 7 are bonded together, the middle limit bonding frame 21 opens its bottom to allow the pushing device 312 to continue to apply pressure.

[0120] At this time, the pushing device 312 pushes the anode GDL material 8 and the CCM material 7 into the lower limit bonding frame 11 and bonds with the cathode GDL material 6 .

[0121] Through this process, the anode GDL material 8, the CCM material 7 and the cathode GDL material 6 are tightly combined together to form a complete membrane electrode.

[0122] Finally, the pushing device 312 is reset, and the reset spring 3112 also drives the docking pushing column 3111 and the pushing adsorption plate 311 to reset synchronously.

[0123] At this time, the prepared membrane electrode stays in the lower limit bonding frame 11, waiting for subsequent removal and processing.

[0124] The accurate bonding of the anode GDL material 8, the CCM material 7 and the cathode GDL material 6 and the efficient preparation of the membrane electrode are achieved.

[0125] See also Figure 1 and Fig.10 As shown, the pushing device 312 includes a hanging bracket 3121 arranged on the docking pushing column 3111, a second linear driver 3122 is installed on the hanging bracket 3121, a pushing contact plate 3123 is installed on the output end of the second linear driver 3122, and a pressure sensor 3124 is installed on the pushing contact plate 3123.

[0126] The anode GDL material 8 is placed in the upper limit fitting frame 31 and is tightly adsorbed by pushing multiple suction cups on the adsorption plate 311 to ensure its stability and accuracy in subsequent operations.

[0127] The pushing device 312 is in an initial position, the second linear driver 3122 is not started, and a certain distance is maintained between the pushing contact plate 3123 and the docking pushing column 3111 .

[0128] When the upper limit laminating frame 31 , the middle limit laminating frame 21 and the lower limit laminating frame 11 are all moved to the preset laminating positions, the laminating process starts.

[0129] At this time, the second linear driver 3122 on the hanging bracket 3121 starts to start, and its output end gradually moves downward.

[0130] As the output end of the second linear driver 3122 moves downward, the pushing and contacting plate 3123 gradually contacts the docking pushing column 3111 .

[0131] After receiving the pressure from the push-contact plate 3123 , the docking push column 3111 begins to overcome the elastic force of the return spring 3112 to press downward, and at the same time drives the push-adsorption plate 311 and the adsorbed anode GDL material 8 to press downward together.

[0132] During the pushing process, the pressure sensor 3124 monitors the pushing force of the second linear driver 3122 in real time to ensure that the pushing force is within an appropriate range so as to complete the bonding task without damaging the material.

[0133] See also Figure 1 As shown, a docking adsorption plate 41 is installed on the movable end of the unloading robot 4, and the docking adsorption plate 41 matches the shapes of the lower limit fitting frame 11, the middle limit fitting frame 21 and the upper limit fitting frame 31.

[0134] A docking adsorption plate 41 matching the shapes of the lower limit laminating frame 11 , the middle limit laminating frame 21 and the upper limit laminating frame 31 is installed on the movable end of the unloading robot 4 .

[0135] The docking adsorption plate 41 can cooperate with the unloading robot 4 to accurately adsorb and carry the cathode GDL material 6 , the CCM material 7 and the anode GDL material 8 .

[0136] The material discharging robot 4 places the cathode GDL material 6 into the lower limit fitting frame 11 , the CCM material 7 into the middle limit fitting frame 21 , and the anode GDL material 8 into the upper limit fitting frame 31 according to a preset program.

[0137] The flatness and accuracy of material placement can be effectively ensured by docking the adsorption plate 41 .

[0138] Specific working principle:

[0139] The linear conveyor 1 is horizontally arranged on a workbench, and lower limit laminating frames 11 are evenly spaced on the conveyor belt of the linear conveyor 1 for limiting the placement of the cathode GDL material 6 .

[0140] The first rotating table 2 and the second rotating table 3 are symmetrically arranged on both sides of the linear conveyor 1, and are respectively connected to the middle limit laminating frame 21 and the upper limit laminating frame 31, so as to adjust the position of the material.

[0141] The middle position limiting fitting frame 21 and the upper position limiting fitting frame 31 are used for limiting the placement of the CCM material 7 and the anode GDL material 8 respectively.

[0142] The material placing robot 4 places the cathode GDL material 6 , the CCM material 7 and the anode GDL material 8 into the corresponding lower limit laminating frame 11 , the middle limit laminating frame 21 and the upper limit laminating frame 31 , respectively.

[0143] The glue dispensing robot 5 performs glue dispensing on the cathode GDL material 6 and CCM material 7 placed at the designated position to prepare for the subsequent bonding.

[0144] The linear conveyor 1 drives the lower limit laminating frame 11 to move to the laminating area.

[0145] At the same time, the first rotating platform 2 and the second rotating platform 3 rotate synchronously, driving the middle position limiting laminating frame 21 and the upper position limiting laminating frame 31 to move to appropriate positions.

[0146] At this time, the middle position-limiting fitting frame 21 is located directly above the lower position-limiting fitting frame 11 , and the upper position-limiting fitting frame 31 is located directly above the middle position-limiting fitting frame 21 .

[0147] The upper limit fitting frame 31 positions the anode GDL material 8 by adsorption and presses downward, so that the anode GDL material 8 contacts and fits with the CCM material 7 in the middle limit fitting frame 21 .

[0148] Due to the glue dispensing process, the anode GDL material 8 and the CCM material 7 can be firmly adhered together.

[0149] Subsequently, the middle limit fitting frame 21 opens the bottom, and the upper limit fitting frame 31 continues to push the anode GDL material 8 and CCM material 7 downward, so that they pass through the middle limit fitting frame 21 and come into contact with the cathode GDL material 6 in the lower limit fitting frame 11 to obtain a membrane electrode.

[0150] After the lamination is completed, the upper limit lamination frame 31 and the middle limit lamination frame 21 are reset.

[0151] The linear conveyor 1 transports the bonded membrane electrode to the area to be processed for subsequent processing.

[0152] During the process of stacking and bonding the membrane electrode, the material discharging robot 4 and the glue dispensing robot 5 will continue to work to prepare spare stacking and bonding materials.

[0153] This can ensure the continuity of stacking and laminating, effectively improving work efficiency.

[0154] This device realizes an automated and continuous membrane electrode bonding process, greatly simplifies the bonding steps, improves production efficiency, and provides strong support for the production of hydrogen fuel cells.

[0155] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the protection scope of the present invention.

[0156] It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all fall within the protection scope of the present invention.

[0157] Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A hydrogen fuel cell membrane electrode bonding device, characterized in that: It comprises a linear conveyor (1), a lower limit laminating frame (11), a first rotating table (2), a middle limit laminating frame (21), a second rotating table (3) and an upper limit laminating frame (31); The linear conveyor (1) is horizontally arranged on a workbench; A plurality of lower limit laminating frames (11) are provided and are evenly spaced and distributed on the conveyor belt of the linear conveyor (1). The lower limit laminating frames (11) are used to limit the placement of the cathode GDL material (6). The first rotating platform (2) and the second rotating platform (3) are symmetrically arranged on both sides of the linear conveyor (1); A plurality of middle limit laminating frames (21) are provided and are evenly distributed around the rotation axis of the first rotating platform (2), the middle limit laminating frames (21) are fixedly connected to the movable end of the first rotating platform (2), the middle limit laminating frames (21) are arranged above the lower limit laminating frames (11), and the middle limit laminating frames (21) are used to limit the placement of the CCM material (7); A plurality of upper limit laminating frames (31) are provided and are evenly distributed around the rotation axis of the second rotating table (3); the upper limit laminating frames (31) are fixedly connected to the movable end of the second rotating table (3); the upper limit laminating frames (31) are arranged above the middle limit laminating frames (21); and the upper limit laminating frames (31) are used for limiting the storage of the anode GDL material (8); A material placing robot (4) is provided on each side of the lower limit laminating frame (11), the middle limit laminating frame (21) and the upper limit laminating frame (31); A dispensing robot (5) is provided on each side of the lower limit laminating frame (11) and the middle limit laminating frame (21); A positioning and correction seat (12) is provided at the bottom of the lower limit laminating frame (11), the bottom of the positioning and correction seat (12) is fixedly connected to the linear conveyor (1), and a plurality of first-row pressure holes are provided inside the lower limit laminating frame (11); A movable base (122) is provided inside the positioning and correction seat (12), movable springs (123) are provided on both sides of the movable base (122), one end of the movable spring (123) away from the movable base (122) contacts the positioning and correction seat (12), a positioning bracket (124) is provided on the top of the movable base (122), and a positioning bayonet (1241) is provided on the side of the positioning bracket (124), and the positioning and correction seat (12) further includes a correction insertion device (125) installed on the linear conveyor (1); The correction and insertion device (125) comprises a fixed installation plate (1351) installed on the side of the linear conveyor (1), an insertion correction frame (1353) is slidably installed on the fixed installation plate (1351), an insertion correction block (1354) is provided at the abutting end of the insertion correction frame (1353), a first linear drive (1352) is installed on the fixed installation plate (1351), and an output end of the first linear drive (1352) is connected to the insertion correction frame (1353); A plurality of second rows of pressure holes are provided inside the middle limit fitting frame (21), limit slide rails (22) are symmetrically provided on both sides of the middle limit fitting frame (21), and horizontal support plates (23) are installed inside the limit slide rails (22). The middle limit fitting frame (21) also includes an opening and closing device (24) for driving the horizontal support plates (23) to move; The opening and closing device (24) comprises a limiting guide rod (241) mounted on the first rotating platform (2), a synchronous connecting block (242) being mounted on the limiting guide rod (241), a pushing rod (2421) being provided at the bottom of the synchronous connecting block (242), connecting rods (243) being mounted at both ends of the synchronous connecting block (242), an end of the connecting rod (243) away from the synchronous connecting block (242) being connected to the horizontal support plate (23), a pushing spring (244) being mounted between the limiting guide rod (241) and the synchronous connecting block (242), and the opening and closing device (24) further comprises a pushing regulating device (245) for pushing the synchronous connecting block (242) to move; A pushing adsorption plate (311) is installed inside the upper limit fitting frame (31), and a plurality of docking pushing columns (3111) are installed on the top of the pushing adsorption plate (311). One end of the docking pushing column (3111) away from the pushing adsorption plate (311) passes through the top of the upper limit fitting frame (31) and extends upward. A return spring (3112) is provided between the docking pushing column (3111) and the upper limit fitting frame (31). The upper limit fitting frame (31) further comprises a pushing device (312) installed above the docking pushing column (3111).

2. A hydrogen fuel cell membrane electrode bonding device according to claim 1, characterized in that: The push-press control device (245) comprises a ball screw slide (2451) arranged below the synchronous connection block (242); a docking push block (2452) is installed at the movable end of the ball screw slide (2451); and a limit docking groove (2453) is provided on the docking push block (2452).

3. A hydrogen fuel cell membrane electrode bonding device according to claim 1, characterized in that: The pushing device (312) comprises a hanging bracket (3121) arranged on the docking pushing column (3111), a second linear driver (3122) is installed on the hanging bracket (3121), a pushing contact plate (3123) is installed on the output end of the second linear driver (3122), and a pressure sensor (3124) is installed on the pushing contact plate (3123).

4. A hydrogen fuel cell membrane electrode bonding device according to claim 1, characterized in that: A docking adsorption plate (41) is installed on the movable end of the material discharging robot (4), and the docking adsorption plate (41) matches the shapes of the lower limit fitting frame (11), the middle limit fitting frame (21) and the upper limit fitting frame (31).

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