Intelligent assembling device and method for electrolytic cell

Abstract

The application discloses an electrolytic cell intelligent assembling device and method, which comprises a multi-axis robot, a plurality of first material boxes, a stacking tool, a compression airtightness detection mechanism and a first positioning mechanism. The plurality of first material boxes are respectively used for storing sealing gaskets, polar plates and single cell units. The stacking tool is transversely slidably arranged, and an artificial installation station, a stacking station and a compression airtightness detection station are arranged on the transverse sliding track of the stacking tool. The compression airtightness detection mechanism is arranged at the compression airtightness detection station. The first positioning mechanism is used for secondary positioning of the sealing gaskets, the polar plates and the single cell units. The plurality of first material boxes, the stacking station and the first positioning mechanism are arranged on the outer circumferential side of the multi-axis robot. The electrolytic cell positioning, stacking, compression, airtightness detection and fastening are automatically realized, the single-process stacking frequency is relatively low, the modular stacking and compression mode makes the cumulative error of the electrolytic cell compression smaller, and thus the precision and efficiency of the electrolytic cell assembling are improved.

Description

Technical Field

[0001] This invention relates to the technical field of PEM electrolytic cell assembly, and particularly to an intelligent assembly device and method for electrolytic cells. Background Technology

[0002] Green hydrogen production technology refers to the use of clean energy sources such as renewable energy or nuclear energy as a power source to produce hydrogen through water electrolysis. It is an emerging hydrogen production technology. Compared with traditional hydrogen production technologies such as steam reforming and coal gasification, green hydrogen production technology has advantages such as high efficiency, low carbon emissions, and sustainability, and is of great significance to the future development of energy. Currently, green hydrogen production technology has been widely researched and applied. The PEM electrolyzer is the core unit equipment of the water electrolysis hydrogen production system, and its performance parameters determine the technical performance of the hydrogen production system. The performance of the PEM electrolyzer is closely related to its assembly process. In existing technologies, the preparation of PEM electrolyzers is usually done by manual stacking and assembly. During the assembly process, airtightness testing is required. The traditional electrolyzer assembly method involves manually stacking cathode plates and anode plates alternately on the PEM electrolyzer membrane in sequence to form a unit. If there are multiple layers, the above operation is repeated. Then, gaskets and sealing rings are installed. Conductive gaskets and O-rings are placed between the stack and the end plates to ensure that the gas does not leak. Finally, end plates are installed at both ends of the stack, and bolts and nuts are used to ensure the tightness between the end plates and the stack. However, this manual assembly method has low precision, and different employees have different errors, which can easily accumulate stacking errors. As a result, the assembly process precision is not up to standard, the stack performance is reduced or lost, and it is also difficult to achieve rapid positioning assembly and airtightness testing. Summary of the Invention

[0003] The purpose of this invention is to provide an intelligent assembly device and method for electrolytic cells to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: Firstly, this invention provides an intelligent assembly device for an electrolytic cell, comprising: A multi-axis robot with a gripper assembly installed at the actuator end; The first material box is provided in multiple ways, and the multiple first material boxes are respectively used to store sealing gaskets, electrode plates, and single battery cells; A stacking fixture is provided, which is laterally slidable. The lateral sliding trajectory of the stacking fixture is provided with a manual installation station, a stacking station, and a pressing airtightness testing station. A pressing airtightness testing mechanism is provided at the pressing airtightness testing station. The pressing airtightness testing mechanism is used to press and test the airtightness of the electrolytic cells on the stacked tooling. The first positioning mechanism is used for secondary positioning of the sealing gasket, electrode plate, and single battery cell; Multiple first material bins, the stacking station, and the first positioning mechanism are arranged on the outer periphery of the multi-axis robot.

[0005] This invention uses a multi-axis robot to move a clamping assembly, which can grasp the sealing gasket, electrode plate, and single battery cell in the first material box and place them on a stacking fixture at the first positioning mechanism. After stacking, the electrolytic cell semi-finished product stacking fixture moves to the pressing and airtightness testing station. The pressing and airtightness testing mechanism presses and tests the electrolytic cells on the stacking fixture. After testing, it is tightened. The stacking fixture moves to the manual installation station for unloading. This invention automatically realizes the positioning, stacking, pressing, airtightness testing, and tightening of electrolytic cells. The number of stacking operations per process is reduced, and the modular stacking and pressing method reduces the cumulative error during electrolytic cell pressing, thereby improving the accuracy and efficiency of electrolytic cell assembly.

[0006] As a further improvement to the above technical solution, the stacking fixture includes a sliding seat, a stacking seat disposed on top of the sliding seat, and a plurality of limiting components arranged in a ring with the stacking seat as the center, wherein the limiting components are vertically arranged.

[0007] During stacking, the electrolytic cells are stacked on the stacking base. This solution is equipped with multiple limiting components to guide and position the stacked materials on the stacking base.

[0008] As a further improvement to the above technical solution, the sliding seat is provided with a lifting hole that runs vertically through it, the stacking seat is located in the lifting hole, the stacking station is provided with a lifting mechanism, the lifting mechanism includes a top block located below the lifting hole and a lifting drive structure that drives the top block to move up and down, and the bottom of the stacking seat is provided with a slot that matches and engages with the top block.

[0009] This solution uses a lifting mechanism at the stacking station to raise the stacking base. When stacking each product, the stacking base is lowered by a certain height to ensure the stacking position height and the product's guiding and positioning within the stacking fixture. This solution achieves positioning and engagement by engaging the top block with the slot at the bottom of the stacking base. Then, the lifting drive structure moves the top block up and down to raise and lower the stacking base.

[0010] As a further improvement to the above technical solution, the limiting component is radially adjustable on the sliding seat along a circle centered on the stacking seat, and a locking structure is provided between the limiting component and the sliding seat.

[0011] The limiting components in this solution can adjust the range of the guiding and limiting area according to the size of the electrolytic cell.

[0012] As a further improvement to the above technical solution, the pressing airtightness testing mechanism includes a pre-pressing die head located above the stacking tooling, a pressing drive structure that drives the pre-pressing die head to move up and down, and an airtightness testing pipeline disposed in the pre-pressing die head.

[0013] The stacked electrolytic cells are moved to the pressing and airtightness testing station. At this time, the electrolytic cells are located below the pre-pressing die head. The pressing drive structure drives the pre-pressing die head to move downward. Under the mutual clamping of the pre-pressing die head and the stacking seat, the electrolytic cells are pressed and pressure is maintained. Then, the airtightness of the electrolytic cells is tested through the airtightness testing pipeline. After the test is completed, the electrolytic cells are directly tightened. Then, the pre-pressing die head is loosened, and the electrolytic cells are moved to the manual installation station.

[0014] As a further improvement to the above technical solution, the first positioning mechanism includes an upward-facing CCD camera and a CCD light source located above and to the side of the CCD camera.

[0015] This solution uses a CCD camera to photograph, locate, and correct the sealing gasket, electrode plate, and single battery unit, while also using a CCD light source for supplementary lighting.

[0016] As a further improvement to the above technical solution, the first material box includes a first material platform and a plurality of limiting material columns that are vertically and evenly distributed on the first material platform.

[0017] As a further improvement to the above technical solution, it also includes a carbon paper dispensing mechanism, a second material box, and a second positioning mechanism distributed on the outer periphery of the multi-axis robot. The second material box is used to store carbon paper, and the second positioning mechanism is used to perform secondary positioning of the carbon paper. The carbon paper dispensing mechanism includes a dispensing fixture, a dispensing gun, and a dispensing drive assembly that drives the dispensing gun to move above the dispensing fixture.

[0018] This solution also includes a carbon paper dispensing mechanism to dispense carbon paper. At this time, the multi-axis robot can grab the carbon paper in the second material box and place it on the dispensing fixture. The dispensing drive component drives the dispensing gun to dispense the carbon paper.

[0019] As a further improvement to the above technical solution, the clamping assembly includes a first suction cup for picking up the sealing gasket, electrode plate, and single battery cell, and a second suction cup for picking up carbon paper.

[0020] Furthermore, the present invention also provides a method for assembling an electrolytic cell, comprising: The aforementioned intelligent assembly device for electrolytic cells is used; Place the sealing gasket, electrode plate, and single cell unit into their respective first material box; Move the stacking fixture to the manual installation station and install the lower end plate onto the stacking fixture; Move the stacking fixture to the stacking station; A multi-axis robot sequentially picks up a single battery cell, a sealing gasket, and an electrode plate. After the sealing gasket is positioned by the first positioning mechanism, it is stacked on the stacking fixture, and the stacking cycle is limited to one stacking cycle. The number of times the stacking cycle is repeated is set according to the process. After stacking, move the stacking fixture to the manual installation station and install the upper plate and screws; The stacking fixture is moved to the pressing airtightness test station. The pressing airtightness test mechanism applies a preset pressure to the electrolytic cell and maintains the pressure to perform an airtightness test. Electrolytic cells that pass the airtightness test are then tightened with screws. The airtightness testing mechanism is reset, and the stacked fixtures are moved to the manual installation station for unloading.

[0021] The beneficial effects of this invention are: the storage and feeding of incoming materials are completed by multiple first material boxes, the multi-axis robot automatically grabs the materials, positions them by the first positioning mechanism, and stacks them into the stacking fixture in a certain order. After stacking, the stacking fixture moves the electrolytic cell to the pressing and airtightness testing mechanism to complete the stacking, airtightness testing, fastening and unloading of the entire electrolytic cell. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of some embodiments of the intelligent electrolytic cell assembly device provided by the present invention; Figure 2 This is a top view of some embodiments of the intelligent electrolytic cell assembly device provided by the present invention; Figure 3 This is a schematic diagram of the structure of some embodiments of the multi-axis robot provided by the present invention; Figure 4 This is a schematic diagram of some embodiments of the carbon paper dispensing mechanism provided by the present invention; Figure 5 This is a schematic diagram of the structure of some embodiments of the first positioning mechanism provided by the present invention; Figure 6 This is a schematic diagram of the structure of some embodiments of the first material box provided by the present invention; Figure 7 This is a schematic diagram of the structure of some embodiments of the second material box provided by the present invention; Figure 8 This is a schematic diagram of the structure of some embodiments of the second positioning mechanism provided by the present invention; Figure 9 These are schematic diagrams of some embodiments of the press-fit airtightness testing mechanism provided by the present invention; Figure 10This is a schematic diagram of the structure of some embodiments of the stacking tooling provided by the present invention; Figure 11 This is a schematic diagram of some embodiments of the lifting mechanism provided by the present invention; Figure 12 This is a schematic diagram of some embodiments of the limiting component provided by the present invention. Detailed Implementation

[0023] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0024] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] In the description of this invention, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0026] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0027] like Figures 1 to 12 As shown, the intelligent electrolytic cell assembly device of this embodiment includes a multi-axis robot 100, a first material box 200, a stacking fixture 300, a pressing airtightness detection mechanism 400, and a first positioning mechanism 600.

[0028] The multi-axis robot 100 is equipped with an execution end, and the execution end is equipped with a gripper assembly. In this embodiment, the gripper assembly includes a first material-grabbing suction cup 110, which is used to pick up the sealing gasket, electrode plate, and single battery cell. In other embodiments, the gripper assembly can use a gripping robot to grab the sealing gasket, electrode plate, and single battery cell.

[0029] The number of first material boxes 200 is set to three. The three first material boxes 200 are used to store sealing gaskets, electrode plates and single battery units respectively. In this embodiment, the first material box 200 includes a first material platform 210 and a plurality of limiting material columns 220 vertically and evenly distributed on the first material platform 210. The distribution of the plurality of limiting material columns 220 is determined according to the size and shape of the product.

[0030] Three first material bins 200 are distributed on the outer periphery of the multi-axis robot 100 to facilitate the multi-axis robot 100 to pick up materials.

[0031] The first positioning mechanism 600 is also located on the outer periphery of the multi-axis robot 100. The first positioning mechanism 600 is used for secondary positioning of the sealing gasket, electrode plate, and single battery unit. The multi-axis robot 100 can pick up the product and position it in the first positioning mechanism 600. In this embodiment, the first positioning mechanism 600 includes an upward-facing CCD camera 610 and a CCD light source 620 located above and beside the CCD camera 610. The CCD camera 610 takes pictures, positions, and corrects the deviation of the sealing gasket, electrode plate, and single battery unit, while the CCD light source 620 provides supplementary lighting.

[0032] In this embodiment, there are two CCD cameras 610, and the top lens of the CCD camera 610 is equipped with two CCD light sources 620.

[0033] The stacking fixture 300 is used to support the stacked electrolytic cell products. The stacking fixture 300 is laterally slidably installed on the outer periphery of the multi-axis robot 100. On the lateral sliding trajectory of the stacking fixture 300, there are a manual installation station 310, a stacking station 320, and a pressing airtightness testing station 330. The manual installation station 310, the pressing airtightness testing station 330, and the stacking station 320 are arranged laterally at intervals. The stacking station 320 is close to the multi-axis robot 100.

[0034] The stacking fixture 300 of this embodiment includes a sliding seat 340, a stacking seat 350, and a plurality of limiting components 360. The sliding seat 340 is slidably arranged. This embodiment is provided with a transverse drive structure to drive the sliding seat 340 to move laterally back and forth. The stacking seat 350 is arranged on top of the sliding seat 340. The sliding seat 340 is used to place stacked products. The plurality of limiting components 360 are arranged in a ring with the stacking seat 350 as the center and are arranged vertically.

[0035] During stacking, the electrolytic cells are stacked and formed on the stacking base 350. In this embodiment, multiple limiting components 360 are provided to guide and position the stacked materials on the stacking base 350.

[0036] Furthermore, the sliding seat 340 is provided with a lifting hole that runs vertically through it, the stacking seat 350 is located in the lifting hole, the stacking station 320 is provided with a lifting mechanism 500, the lifting mechanism 500 includes a top block 510 located below the lifting hole and a lifting drive structure 520 that drives the top block 510 to move up and down, and the bottom of the stacking seat 350 is provided with a slot that matches and engages with the top block 510.

[0037] A lifting mechanism 500 is set in the stacking station 320 to lift the stacking base 350. When stacking each product, the stacking base 350 is driven to descend a certain height to ensure the stacking position height and the guiding positioning of the product in the stacking fixture 300. In this solution, the top block 510 is engaged with the slot at the bottom of the stacking base 350 to achieve positioning and fitting. Then, the lifting drive structure 520 drives the top block 510 to move up and down to achieve the lifting and lowering of the stacking base 350.

[0038] The lifting drive structure 520 adopts a lead screw drive structure, which has higher precision.

[0039] Furthermore, the limiting component 360 is radially adjustable on the sliding seat 340 along a circle centered on the stacking seat 350, and a locking structure 370 is provided between the limiting component 360 and the sliding seat 340. The limiting component 360 can adjust the range of the guiding and limiting area according to the size of the electrolytic cell.

[0040] In some embodiments, such as Figure 12As shown, the limiting component 360 includes a vertically arranged guide seat 361, a pre-compression block 362 disposed inside the guide seat 361, a pre-compression rotation drive 363 that drives the pre-compression block 362 to rotate around a vertical axis, and a pre-compression lifting drive 364 that drives the pre-compression block 362 to rise and fall. The pre-compression rotation drive 363 is a micro motor. The pre-compression block 362 is provided with a pre-compression end 365. The pre-compression rotation drive 363 drives the pre-compression end 365 to rotate, so that the pre-compression end 365 rotates... The rotation path is equipped with a pre-compression position and a guide clearance position. When the pre-compression end 365 is in the pre-compression position, it is located directly above the stacking base 350. At this time, the stacking base 350 can move the products upward, so that the stacked products abut against the bottom of the pre-compression end 365, achieving pre-compression of the stacked products and preventing them from loosening during lateral movement. During stacking, the pre-compression end 365 rotates to the guide clearance position, at which point the pre-compression end 365 rotates to the stacking base 350. On the side directly above 50, the side of the pre-compression end 365 serves as a guide surface. The side of the pre-compression end 365 slides in contact with the side of the stacked products. The sides of multiple pre-compression ends 365 form a vertically extending guide channel, thereby limiting the stacked products. After one product is stacked, the stacking seat 350 moves downward, and then the pre-compression end 365 rotates to the pre-compression position. The stacking seat 350 moves upward to pre-compress the stacked products. When stacking the next product, the stacking seat 350 moves downward, and the pre-compression end 365 rotates to the guide clearance position. Then the stacking seat 350 moves upward again, and this process is repeated to stack the electrolytic cells. After stacking, the pre-compression end 365 rotates to the pre-compression position again. The pre-compression lifting drive 364 drives the pre-compression block 362 downward, so that the electrolytic cell maintains the pre-compression state and moves laterally. When moving to other stations, the pre-compression lifting drive 364 drives the pre-compression block 362 upward, and the pre-compression end 365 rotates to the guide clearance position.

[0041] The press airtightness testing mechanism 400 of this embodiment includes a pre-pressing die head 410 disposed above the stacking fixture 300, a press driving structure 420 that drives the pre-pressing die head 410 to move up and down, and an airtightness testing pipeline disposed in the pre-pressing die head 410.

[0042] The stacked electrolytic cells are moved to the pressing and airtightness testing station 330. At this time, the electrolytic cells are located below the pre-pressing die head 410. The pressing drive structure 420 drives the pre-pressing die head 410 to move downward. Under the mutual clamping of the pre-pressing die head 410 and the stacking seat 350, the electrolytic cells are pressed and pressure is maintained. Then, the airtightness of the electrolytic cells is tested through the airtightness testing pipeline. After the test is completed, the electrolytic cells are directly tightened. Then, the pre-pressing die head 410 is loosened, and the electrolytic cells are moved to the manual installation station 310.

[0043] Furthermore, this embodiment also includes a carbon paper dispensing mechanism 700, a second material bin 800, and a second positioning mechanism 900 distributed on the outer periphery of the multi-axis robot 100. The second material bin 800 is used to store carbon paper, and the second positioning mechanism 900 is used for secondary positioning of the carbon paper. The carbon paper dispensing mechanism 700 includes a dispensing fixture 710, a dispensing gun 720, and a dispensing drive assembly 730 that drives the dispensing gun 720 to move above the dispensing fixture 710.

[0044] The dispensing fixture 710 is slidably set, and the dispensing drive assembly 730 includes an X-axis drive structure and a Z-axis drive structure. The X-axis drive structure and the Z-axis drive structure drive the dispensing gun 720 to move in the horizontal and vertical directions, respectively. When loading materials, the dispensing fixture 710 moves to the loading position, and when dispensing, the dispensing fixture 710 moves to the dispensing position.

[0045] The multi-axis robot 100 can grab the carbon paper in the second material box 800 and place it in the second positioning mechanism 900 for positioning. After positioning, it is placed on the dispensing fixture 710.

[0046] The second positioning mechanism 900 adopts a mechanical positioning method. The second positioning mechanism 900 includes a positioning platform and four mechanical positioning units distributed in a rectangle on the positioning platform. Each mechanical positioning unit includes a positioning block and a mechanical positioning drive component that drives the positioning block to reciprocate toward the center of the positioning platform.

[0047] The clamping assembly also includes a second pick-up suction cup 120 for picking up carbon paper.

[0048] The present invention also provides a method for assembling an electrolytic cell, comprising: The individual battery cells, plates, and sealing gaskets are manually placed into the corresponding first material box 200; The stacking fixture 300 is moved to the manual installation station 310, and the lower end plate is installed onto the stacking fixture 300 by the operator. The stacking fixture 300 moves to the stacking station 320, and the lifting mechanism 500 lifts the stacking base 350 to the unloading height position of the multi-axis robot 100; The multi-axis robot 100 picks up a single battery cell, takes a picture of it with a CCD camera 610, positions and corrects its position, and then moves it to the stacking fixture 300. For each piece of material stacked to stacking fixture 300, the lifting mechanism 500 lowers accordingly to the height of the material. The multi-axis robot 100 picks up a sealing gasket, takes a picture of it with a CCD camera 610, positions it, corrects its deviation, and then moves it to the stacking fixture 300. The robot picks up an electrode plate, takes a picture of it with a CCD camera 610, positions it, corrects its deviation, and then moves it to the stacking fixture 300. The robot picks up a sealing gasket, takes a picture of it with a CCD camera 610, positions it, corrects its deviation, and then moves it to the stacking fixture 300. And it is limited to one stacking cycle, and the number of times the stacking cycle is repeated is set according to the process. When the first hopper 200 of a single battery cell, electrode plate, or sealing gasket is found to be low on material, the equipment alarms, stops, and requires manual replenishment of materials. After stacking, the lifting mechanism 500 descends, and the stacking fixture 300 moves to the manual installation station 310; Manually install the upper plate, thread the bolts, and lock the upper nut in place; The stacking fixture 300 is moved to the pressing airtightness testing station 330, and the pressing airtightness testing mechanism 400 applies a preset pressure to the electrolytic cell. After maintaining the pressure for a period of time, continue the pressure and perform an airtightness test. If the airtightness test is OK, manually tighten the nut at the lower end of the screw. The airtightness testing mechanism 400 is released, and the electrolytic cell moves to the manual installation station 310 along with the stacking fixture 300. The finished electrolytic cells are manually removed from the production line using material feeding aids. If the airtightness test result is NG, proceed with NG analysis.

[0049] This invention uses multiple first material bins 200 to store and load incoming materials. A multi-axis robot 100 automatically grabs the materials, positions them using a first positioning mechanism 600, and stacks them in a certain order into a stacking fixture 300. After stacking, the stacking fixture 300 moves the electrolytic cell to the pressing and airtightness testing mechanism 400, completing the stacking, airtightness testing, fastening, and unloading of the entire electrolytic cell.

[0050] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An intelligent assembly device for an electrolytic cell, characterized in that, include: A multi-axis robot with a gripper assembly installed at the actuator end; The first material box is provided in multiple ways, and the multiple first material boxes are respectively used to store sealing gaskets, electrode plates, and single battery cells; A stacking fixture is provided, which is laterally slidable. The lateral sliding trajectory of the stacking fixture is provided with a manual installation station, a stacking station, and a pressing airtightness testing station. A pressing airtightness testing mechanism is provided at the pressing airtightness testing station. The pressing airtightness testing mechanism is used to press and test the airtightness of the electrolytic cells on the stacked tooling. The first positioning mechanism is used for secondary positioning of the sealing gasket, electrode plate, and single battery cell; Multiple first material bins, the stacking station, and the first positioning mechanism are arranged on the outer periphery of the multi-axis robot; The stacking fixture includes a sliding seat, a stacking seat disposed on top of the sliding seat, and a plurality of limiting components arranged in a ring with the stacking seat as the center, wherein the limiting components are vertically arranged. The sliding seat is provided with a lifting hole that runs vertically through it. The stacking seat is located in the lifting hole. The stacking station is provided with a lifting mechanism. The lifting mechanism includes a top block located below the lifting hole and a lifting drive structure that drives the top block to move up and down. The bottom of the stacking seat is provided with a slot that matches and engages with the top block. The limiting component is radially adjustable on the sliding seat along a circle centered on the stacking seat, and a locking structure is provided between the limiting component and the sliding seat; The limiting component includes a vertically arranged guide seat, a preload block disposed inside the guide seat, a preload rotation drive that drives the preload block to rotate around a vertical axis, and a preload lifting drive that drives the preload block to rise and fall. The pre-compression block is equipped with a pre-compression end. The pre-compression rotation drive drives the pre-compression end to rotate, so that the pre-compression end has a pre-compression position and a guide clearance position on the rotation trajectory. When the pre-compression end is in the pre-compression position, the pre-compression end is located directly above the stacking base. At this time, the stacking base moves the products upward, so that the stacked products abut against the bottom of the pre-compression end, realizing the pre-compression of the stacked products and preventing the stacked products from loosening during lateral movement. When stacking, the pre-compression end rotates to the guide clearance position. At this time, the pre-compression end rotates to the side directly above the stacking base. The side of the pre-compression end at this time is a guide surface. The side of the pre-compression end slides in contact with the side of the stacked products. The sides of multiple pre-compression ends form a vertically extending guide channel, thereby limiting the stacked products.

2. The intelligent assembly device for electrolytic cells according to claim 1, characterized in that: The press-fit airtightness testing mechanism includes a pre-press die head located above the stacked tooling, a press-fit drive structure that drives the pre-press die head to move up and down, and an airtightness testing pipeline located inside the pre-press die head.

3. The intelligent assembly device for electrolytic cells according to claim 1, characterized in that: The first positioning mechanism includes an upward-facing CCD camera and a CCD light source located above and to the side of the CCD camera.

4. The intelligent assembly device for electrolytic cells according to claim 1, characterized in that: The first material box includes a first material platform and a plurality of limiting material columns that are vertically and evenly distributed on the first material platform.

5. The intelligent assembly device for electrolytic cells according to claim 1, characterized in that: It also includes a carbon paper dispensing mechanism, a second material box, and a second positioning mechanism distributed on the outer periphery of the multi-axis robot. The second material box is used to store carbon paper, and the second positioning mechanism is used to perform secondary positioning of the carbon paper. The carbon paper dispensing mechanism includes a dispensing fixture, a dispensing gun, and a dispensing drive assembly that drives the dispensing gun to move above the dispensing fixture.

6. The intelligent assembly device for electrolytic cells according to claim 5, characterized in that: The clamping assembly includes a first suction cup for picking up the sealing gasket, electrode plate, and single battery cell, and a second suction cup for picking up the carbon paper.

7. A method for assembling an electrolytic cell, characterized in that: include: The intelligent electrolytic cell assembly device as described in any one of claims 1 to 6 is adopted; Place the sealing gasket, electrode plate, and single cell unit into their respective first material box; Move the stacking fixture to the manual installation station and install the lower end plate onto the stacking fixture; Move the stacking fixture to the stacking station; A multi-axis robot sequentially picks up a single battery cell, a sealing gasket, and an electrode plate. After the sealing gasket is positioned by the first positioning mechanism, it is stacked on the stacking fixture, and the stacking cycle is limited to one stacking cycle. The number of times the stacking cycle is repeated is set according to the process. After stacking, move the stacking fixture to the manual installation station and install the upper plate and screws; The stacking fixture is moved to the pressing airtightness test station. The pressing airtightness test mechanism applies a preset pressure to the electrolytic cell and maintains the pressure to perform an airtightness test. Electrolytic cells that pass the airtightness test are then tightened with screws. The airtightness testing mechanism is reset, and the stacked fixtures are moved to the manual installation station for unloading.

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