A transfer device for membrane electrode preparation

Abstract

The utility model relates to electrochemical cell production equipment technical field, concretely relates to a transfer device for membrane electrode preparation. The device includes frame body and grabbing mechanism, and grabbing mechanism swing joint is in frame body, and grabbing mechanism includes negative pressure unit and board body, and the downside of board body is equipped with adsorption area and avoidance area, and the area of board body in adsorption area is equipped with a plurality of mounting holes, and the inboard of mounting hole is provided with sucking disc, and the area of board body downside in avoidance area is provided with avoidance groove. The catalyst coating area on the base film is aligned to the avoidance area, the base film is sucked by the sucking disc, so that the base film is grabbed, and the base film is not easy to damage. Since the sucking disc is arranged in the adsorption area, the sucking disc will not suck the catalyst on the base film, and damage to the catalyst layer by the sucking disc can be avoided. Furthermore, the avoidance groove is arranged in the avoidance area, the board body can be prevented from contacting the catalyst on the base film, thereby ensuring the integrity of the catalyst layer.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical battery production equipment technology, specifically to a transfer device for membrane electrode preparation. Background Technology

[0002] The membrane electrode assembly (MEA), as a core component of a fuel cell, typically consists of five layers: a middle proton exchange membrane, two flank anode and cathode catalyst layers, and outermost anode and cathode gas diffusion layers. Its fabrication techniques mainly include three types: hot-pressing, transfer printing, and direct coating. The transfer printing method involves indirect coating, first applying the catalyst onto a transfer substrate membrane to form a catalyst layer, then transferring the anode and cathode catalyst layers to both sides of the proton exchange membrane using a hot-pressing process, and finally peeling off the substrate membrane to obtain a three-in-one membrane electrode assembly (CCM). When the catalyst is sprayed onto the transfer substrate membrane, a circular catalyst layer region is formed in the center of the transfer substrate membrane, with the planar dimensions of the transfer substrate membrane larger than the planar dimensions of the catalyst layer.

[0003] However, in the actual production process of the transfer method, there are some problems in the transfer process of the substrate film and catalyst layer combination: First, when the traditional mechanical gripper grasps its edge for transfer, the gripping action can easily cause wrinkles or tears in the substrate film, affecting subsequent processing steps; Second, the traditional mechanical gripper is prone to touching the catalyst layer coated on the substrate film during the gripping process, causing damage to the catalyst layer; In addition, uneven adhesion is prone to occur between the substrate film and the support platform, and uneven substrate film laying can easily lead to problems such as misalignment of the subsequent catalyst layer transfer or insufficient interfacial bonding strength. Utility Model Content

[0004] To address the aforementioned deficiencies, the technical problem to be solved by this invention is to provide a transport device for the preparation of membrane electrodes, which facilitates the transport of the substrate membrane and the catalyst layer without easily damaging the substrate membrane and the catalyst layer.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A transport device for membrane electrode fabrication includes: a frame and a gripping mechanism movably connected to the frame; the gripping mechanism includes a negative pressure unit and a plate, the lower side of the plate having an adsorption zone and a clearance zone, the adsorption zone surrounding the clearance zone; the clearance zone corresponds to the catalyst spraying area, and the planar projected area of ​​the clearance zone is larger than the planar projected area of ​​the catalyst spraying area, a clearance groove is provided on the lower side of the plate in the clearance zone; the plate has multiple mounting holes in the adsorption zone, suction cups are installed in the mounting holes, the suction cups are connected to the negative pressure interface of the negative pressure unit through a pipe, and the negative pressure unit can generate negative pressure in the suction cups through the negative pressure interface and the pipe.

[0006] By adopting the above scheme, during use, the avoidance area is aligned with the catalyst coating area on the substrate membrane. The negative pressure unit generates negative pressure, which, through the pipe, creates negative pressure within the suction cups on the plate. The suction cups adhere to the substrate membrane, thus gripping the catalyst-coated substrate membrane without easily damaging it. Since the suction cups are located within the adsorption area, and there are no suction cups in the avoidance area, the suction cups will not adhere to the catalyst on the substrate membrane, preventing damage to the catalyst layer caused by suction force. Furthermore, the avoidance area has avoidance grooves, strictly preventing contact between the plate and the catalyst on the substrate membrane, thus ensuring the integrity of the catalyst layer. Additionally, when the substrate membrane is picked up by the suction cups, the plate presses down on the substrate membrane to make it flat before the suction cups grip it, ensuring the flatness of the substrate membrane during gripping. This device facilitates the transfer of the substrate membrane and catalyst layer assembly without easily damaging either.

[0007] Preferably, the lower end of the suction cup extends beyond the mounting hole, and the suction cup is made of an elastic material. Because the suction cup is made of an elastic material, when the plate presses against the base film, the trumpet-shaped opening at the lower end of the suction cup elastically deforms and retracts into the mounting hole, without affecting the flatness of the base film. Furthermore, the suction cup can form good contact with the base film, allowing it to firmly hold the base film in place.

[0008] Preferably, the plate body has several through holes in the area of ​​the clearance zone. Because the plate body has through holes in the clearance zone, it can provide mounting positions for more suction cups, allowing for the adaptive addition of suction cups to accommodate base films of different sizes. The through holes also allow the internal space of the clearance groove to communicate with the external space, ensuring consistent pressure between the internal and external spaces.

[0009] Preferably, the assembly also includes an X-axis moving module, a Y-axis moving module, and a Z-axis lifting module connected in sequence. The X-axis moving module can drive the Y-axis moving module to move along the X-axis, the Y-axis moving module can drive the Z-axis lifting module to move along the Y-axis, and the Z-axis lifting module can drive the gripping mechanism to move up and down along the Z-axis. The Z-axis lifting module, Y-axis moving module, and Z-axis lifting module allow for easy adjustment of the spatial position of the gripping mechanism, facilitating the gripping and transfer of the substrate membrane and catalyst layer assembly.

[0010] Preferably, the Z-axis lifting module includes: a first mounting base, a movable column, and a first drive assembly. The movable column is slidably mounted on the first mounting base in a vertical direction. The first drive assembly can drive the movable column to slide vertically on the first mounting base. The gripping mechanism is connected to the movable column.

[0011] Preferably, the first mounting base is a cylindrical structure, with vertical first slide rails fixedly connected to both symmetrical sides of the movable column. First sliders, corresponding one-to-one with the two first slide rails, are fixedly connected to the first mounting base, and these sliders are slidably connected to their respective first slide rails. Because the first mounting base is rectangular, the movable column is slidably connected to the two first slide rails on the first mounting base via two first sliders, resulting in better overall sliding fit stability.

[0012] Preferably, the Z-axis lifting module further includes a first substrate and a second substrate, which are connected by an elastic component. The first substrate is fixedly connected to the lower end of the movable column, and the second substrate is located below the first substrate. The plate body is fixedly connected to the lower side of the first substrate. Because the first substrate and the second substrate are connected by an elastic component, when the movable column drives the plate body to move downwards and press against the base film, the force exerted on the base film is the elastic force of the elastic component, which can avoid applying excessive pressure to the base film. On the one hand, it can ensure that the base film is flattened, and on the other hand, it can avoid damaging the base film due to excessive pressure.

[0013] Preferably, the elastic component includes a sliding sleeve, a sliding rod, and an elastic element. The sliding sleeve is fixedly connected to the first substrate, the sliding rod is slidably connected inside the sliding sleeve, the lower end of the sliding rod is fixedly connected to the second substrate, and the top end of the sliding rod extends out of the sliding sleeve. A stop is fixedly connected to the top end of the sliding rod, the diameter of which is larger than the inner diameter of the sliding sleeve. The elastic element is disposed between the first and second substrates. The elastic force of the elastic element causes the first and second substrates to tend to move away from each other. The stop prevents the sliding rod from detaching downwards from the sliding sleeve, and the elastic element provides elastic force to the second substrate, facilitating its reset.

[0014] Preferably, the X-axis moving module includes a crossbeam, a second drive assembly, and two second mounting seats. The two second mounting seats are slidably mounted on the frame. The two ends of the crossbeam are fixedly connected to the two second mounting seats respectively. The second drive assembly can drive the second mounting seats to slide on the frame. The Y-axis moving module is disposed on the crossbeam.

[0015] Preferably, the Y-axis moving module includes a third mounting base and a third driving component. The third mounting base is slidably mounted on the crossbeam, and the third driving component can drive the third mounting base to slide on the crossbeam. The first mounting base is fixedly connected to the third mounting base.

[0016] In summary, the transport device for membrane electrode fabrication provided by this utility model has at least the following beneficial effects: 1. By setting a clearance zone around the catalyst coating area on the underside of the plate, and in conjunction with the clearance groove design, it is ensured that the suction cup and the plate do not come into contact with the catalyst layer during the gripping process. The suction cup only adheres to the base film outside the clearance zone, avoiding damage to the catalyst layer due to suction or mechanical contact, thereby ensuring the structural integrity of the catalyst layer.

[0017] 2. The plate maintains the flatness of the base membrane by applying uniform pressure, and then combines negative pressure adsorption to ensure that the base membrane is free of wrinkles or deformation during the gripping process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any novel effort.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the frame and the X-axis moving module in an embodiment of this utility model; Figure 3 yes Figure 2 An enlarged view of point a in the middle; Figure 4 This is a three-dimensional structural diagram of the Y-axis moving module, Z-axis lifting module, and gripping mechanism in an embodiment of this utility model; Figure 5 This is a front view of the Z-axis lifting module and gripping mechanism in this embodiment of the present invention; Figure 6 yes Figure 5 Sectional view at point AA; Figure 7yes Figure 6 A magnified view at point b in the middle; Figure 8 yes Figure 5 Sectional view at point BB; Figure 9 yes Figure 8 A magnified view at point c in the middle; Figure 10 This is a structural schematic diagram of the gripping mechanism in an upward-looking view according to an embodiment of this utility model; Figure 11 This is a three-dimensional structural diagram of the Z-axis lifting module and gripping mechanism in an embodiment of this utility model; Figure 12 This is a schematic diagram of the structure of the base film and the catalyst spraying area in the background technology.

[0020] The reference numerals in the attached drawings include: frame 1, support column 101, rectangular frame 102, gripping mechanism 2, negative pressure unit 201, plate 202, adsorption area 203, clearance area 204, mounting hole 205, suction cup 206, clearance groove 207, through hole 208, X-axis moving module 3, crossbeam 301, second drive assembly 302, second drive motor 3021, second rack 3022, second mounting base 303, second slide rail 304, Y-axis moving module 4, third mounting base 401, third drive assembly 402, and third drive... Motor 4021, third rack 4022, third slider 403, third slide rail 404, Z-axis lifting module 5, first mounting base 501, movable column 502, first drive assembly 503, first drive motor 5031, first rack 5032, first gear 5033, first slider 504, first slide rail 505, first substrate 506, second substrate 507, elastic component 508, sliding sleeve 5081, sliding rod 5082, elastic element 5083, stop block 5084, spraying area 6, base film 7. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-12 The present invention will be further described in detail below with reference to specific embodiments.

[0022] Please see Figure 1-12This embodiment provides a transport device for membrane electrode fabrication, including a frame 1 and a gripping mechanism 2, the gripping mechanism 2 being movably connected to the frame 1. The frame 1 includes a rectangular frame 102 and several support columns 101, the rectangular frame 102 being fixedly connected to the support columns 101, and the frame 1 being fixed to the ground via the support columns 101. The gripping mechanism 2 includes a negative pressure unit 201 and a plate 202, the lower side of which has an adsorption area 203 and a clearance area 204, the adsorption area 203 surrounding the clearance area 204. The clearance area 204 corresponds to the catalyst spraying area 6, and the planar projected area of ​​the clearance area 204 is larger than the planar projected area of ​​the catalyst spraying area 6. Please refer to [link to relevant documentation]. Figure 12 The catalyst spraying area 6 is a circular area, and the avoidance area 204 in this embodiment is also a circular area. In other embodiments, the spraying area 6 can also be other regular or irregular shaped areas, provided that the range of the avoidance area 204 matches or can completely cover the spraying area 6. Please refer to [link to relevant documentation]. Figure 8 and Figure 9 The plate 202 has multiple mounting holes 205 in the adsorption zone 203, and suction cups 206 are installed in the mounting holes 205. The suction cups 206 are connected to the negative pressure interface of the negative pressure unit 201 via a pipe, allowing the negative pressure unit 201 to generate negative pressure within the suction cups 206 through the negative pressure interface and the pipe. (See also...) Figure 7 and Figure 10 An avoidance groove 207 is provided on the lower side of the plate 202 in the area of ​​the avoidance zone 204. The avoidance groove 207 is a circular groove with a diameter equal to the diameter of the avoidance zone 204. The range of the avoidance groove 207 can cover the catalyst spraying area 6.

[0023] Please see Figure 11 In some embodiments, the plate 202 has a plurality of through holes 208 in the area of ​​the avoidance zone 204. The through holes 208 penetrate the plate 202 in the vertical direction. Specifically, one or more through holes 208 can be provided. If multiple through holes 208 are provided, the through holes 208 are evenly distributed in the avoidance zone 204 of the plate 202 in the circumferential direction.

[0024] Please see Figure 9 In some embodiments, the lower end of the suction cup 206 is funnel-shaped, extending beyond the mounting hole 205, meaning the lower end of the suction cup 206 exceeds the lower plane of the plate 202. The suction cup 206 is made of an elastic material. Because the suction cup 206 is made of an elastic material, when the plate 202 presses against the base membrane 7, the funnel-shaped opening at the lower end of the suction cup 206 can elastically deform and retract into the mounting hole 205, without affecting the flatness of the base membrane 7. Furthermore, the suction cup 206 can form good contact with the base membrane 7, so that the suction cup 206 can firmly hold the base membrane 7.

[0025] Please continue reading. Figure 1 In some embodiments, the device further includes an X-axis moving module 3, a Y-axis moving module 4, and a Z-axis lifting module 5 connected in sequence. The X-axis moving module 3 can drive the Y-axis moving module 4 to move along the X-axis on the frame 1. The Y-axis moving module 4 can drive the Z-axis lifting module 5 to move along the Y-axis. The Z-axis lifting module 5 can drive the gripping mechanism 2 to move up and down along the Z-axis.

[0026] Please see Figure 5 , Figure 6 and Figure 11 In some embodiments, the Z-axis lifting module 5 includes: a first mounting base 501, a movable column 502, and a first drive assembly 503. The movable column 502 is slidably mounted vertically on the first mounting base 501. The first drive assembly 503 can drive the movable column 502 to slide vertically on the first mounting base 501. The gripping mechanism 2 is connected to the movable column 502. (See also...) Figure 11 The first drive assembly 503 includes a first drive motor 5031 and a first rack 5032. The first drive motor 5031 is fixedly connected to the first mounting base 501. The output shaft of the first drive motor 5031 is fixedly connected to a first gear 5033, which meshes with the first rack 5032. The output shaft of the first drive motor 5031 can drive the first gear 5033 to rotate. The rotation of the first gear 5033 engages with the first rack 5032, thereby driving the movable column 502 to slide vertically on the first mounting base 501. The first mounting base 501 is a cylindrical structure, specifically a rectangular cylindrical structure. Vertical first slide rails 505 are fixedly connected to both the front and rear sides of the movable column 502. First sliders 504, corresponding one-to-one with the two first slide rails 505, are fixedly connected to the inner side of the first mounting base 501. The first sliders 504 are slidably connected to the corresponding first slide rails 505.

[0027] Please see Figure 7 and Figure 11In some embodiments, the Z-axis lifting module 5 further includes a first substrate 506 and a second substrate 507, both of which are rectangular plates arranged parallel to each other. The first substrate 506 and the second substrate 507 are connected by elastic components 508. The first substrate 506 is fixedly connected to the lower end of the movable column 502, and the second substrate 507 is located below the first substrate 506. The plate body 202 is fixedly connected to the lower side of the first substrate 506. Four elastic components 508 are arranged circumferentially, with equal spacing between them. These four elastic components enhance the stability of the connection between the first substrate 506 and the second substrate 507. Specifically, the elastic component 508 includes a sliding sleeve 5081, a sliding rod 5082, and an elastic element 5083. The sliding sleeve 5081 is fixedly connected to the first substrate 506. The sliding rod 5082 is slidably connected inside the sliding sleeve 5081. The lower end of the sliding rod 5082 is fixedly connected to the second substrate 507. The top end of the sliding rod 5082 extends out of the sliding sleeve 5081. A stop 5084 is fixedly connected to the top end of the sliding rod 5082. The diameter of the stop 5084 is larger than the inner diameter of the sliding sleeve 5081. The elastic element 5083 is disposed between the first substrate 506 and the second substrate 507. The elastic force of the elastic element 5083 can cause the first substrate 506 and the second substrate 507 to tend to move away from each other. Specifically, the elastic element 5083 can be a compression spring in the prior art. The compression spring is helical and is sleeved on the sliding rod 5082. The upper end of the compression spring abuts against the lower end of the sliding sleeve 5081, and the lower end of the compression spring abuts against the upper side of the second substrate 507. When the plate 202 presses down on the base film 7, the plate 202 drives the second substrate 507, the sliding rod 5082, and the stop block 5084 to move upward. At this time, the elastic element 5083 is compressed, and the pressure of the plate 202 on the base film 7 is the elastic force of the elastic element 5083. The pressure of the plate 202 on the base film 7 is controllable, which can ensure that the plate 202 can flatten the base film 7, and also prevent excessive pressure from damaging the base film 7 itself.

[0028] Please see Figure 2 In some embodiments, the X-axis moving module 3 includes a crossbeam 301, a second drive assembly 302, and two second mounting seats 303. Both second mounting seats 303 are slidably mounted on the upper side of the rectangular frame 102. The left and right ends of the crossbeam 301 are fixedly connected to the two second mounting seats 303, respectively. The second drive assembly 302 can drive the second mounting seats 303 to slide on the frame 1. The Y-axis moving module 4 is disposed on the crossbeam 301. The Y-axis moving module 4 includes a third mounting seat 401 and a third drive assembly 402. The third mounting seat 401 is slidably mounted on the crossbeam 301, and the third drive assembly 402 can drive the third mounting seat 401 to slide on the crossbeam 301. A first mounting seat 501 is fixedly connected to the third mounting seat 401. (See also...) Figure 3Specifically, a second slider is fixedly connected to the lower side of the second mounting base 303, and a second slide rail 304 is fixedly connected to the rectangular frame 102, with the second slider slidably connected to the second slide rail 304. The second drive assembly 302 includes a second drive motor 3021 and a second rack 3022. The second rack 3022 is fixedly connected to the upper side of the rectangular frame 102, and the second drive motor 3021 is fixedly connected to the second mounting base 303. A second gear is fixedly connected to the output shaft of the second drive motor 3021, and the second gear meshes with the rack. A third slide rail 404 is fixedly connected to the front side of the crossbeam 301, and a third slider 403 is fixedly connected to the rear side of the third mounting base 401, with the third slider 403 slidably connected to the third slide rail 404. The third drive assembly 402 includes a third drive motor 4021 and a third rack 4022. The third drive motor 4021 is fixedly connected to the third mounting base 401, and the third rack 4022 is fixedly connected to the front side of the crossbeam 301. The output shaft of the third drive motor 4021 is fixedly connected to a third gear, which meshes with the third rack 4022.

[0029] Please see Figure 12 , Figure 12 This is a schematic diagram of the structure of the catalyst-formed composite layer sprayed onto the transfer base film 7 described in the background art. By adopting the above scheme, during use, the planar position of the gripping mechanism 2 on the XY plane is adjusted by the X-axis moving module 3 and the Y-axis moving module 4, positioning the gripping mechanism 2 directly above the base film 7 so that the clearance area 204 is aligned with the catalyst spraying area 6 on the base film 7. The gripping mechanism 2 is moved downwards by the Z-axis lifting module 5, causing the portion of the plate 202 located in the adsorption area 203 to press down on the base film 7, making the base film 7 flat. At this time, the suction cup 206 undergoes elastic deformation due to the pressure of the base film 7, retracting into the mounting hole 205, and the trumpet-shaped opening at the lower end of the suction cup 206 forms good contact and adhesion with the base film 7. Negative pressure is generated by the negative pressure unit 201, and through the pipe, negative pressure is generated within the suction cup 206 on the plate 202, causing the suction cup 206 to adhere to the base film 7, thereby gripping the composite layer of the base film 7 and the catalyst layer, without easily damaging the base film 7. Because the avoidance zone 204 is equipped with an avoidance groove 207, the plate 202 can avoid contact with the catalyst on the base film 7, thereby ensuring the integrity of the catalyst layer. The spatial position of the gripping mechanism 2 can be adjusted by the X-axis moving module 3, the Y-axis moving module 4 and the Z-axis lifting module 5, so as to facilitate the transfer of the combination of the base film 7 and the catalyst layer to other processing stations.

[0030] It should be noted that words indicating direction in this article, such as "up" and "down," are all in the format of "upper" and "lower." Figure 1 The direction setting is for ease of description only and has no other specific meaning.

[0031] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.

[0032] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A transport device for preparing membrane electrodes, characterized in that, include: The frame (1) and the gripping mechanism (2) are movably connected to the frame (1); the gripping mechanism (2) includes a negative pressure unit (201) and a plate (202), the lower side of the plate (202) is provided with an adsorption area (203) and a clearance area (204), the adsorption area (203) surrounds the periphery of the clearance area (204); the clearance area (204) corresponds to the catalyst spraying area (6), and the planar projection area of ​​the clearance area (204) is larger than that of the catalyst spraying area. The planar projection area of ​​the domain (6) is provided with a relief groove (207) in the area of ​​the relief zone (204) on the lower side of the plate (202); the plate (202) is provided with a plurality of mounting holes (205) in the area of ​​the adsorption zone (203), and a suction cup (206) is provided in the mounting hole (205). The suction cup (206) is connected to the negative pressure interface of the negative pressure unit (201) through a pipe. The negative pressure unit (201) can generate negative pressure in the suction cup (206) through the negative pressure interface and the pipe.

2. The transport device for membrane electrode fabrication according to claim 1, characterized in that, The lower end of the suction cup (206) extends outside the mounting hole (205), and the suction cup (206) is made of an elastic material.

3. The transport device for membrane electrode fabrication according to claim 1, characterized in that, The plate (202) has several through holes (208) in the area of ​​the avoidance zone (204).

4. The transport device for membrane electrode fabrication according to any one of claims 1-3, characterized in that, It also includes an X-axis moving module (3), a Y-axis moving module (4) and a Z-axis lifting module (5) connected in sequence. The X-axis moving module (3) can drive the Y-axis moving module (4) to move along the X-axis. The Y-axis moving module (4) can drive the Z-axis lifting module (5) to move along the Y-axis. The Z-axis lifting module (5) can drive the gripping mechanism (2) to lift along the Z-axis.

5. The transport device for membrane electrode fabrication according to claim 4, characterized in that, The Z-axis lifting module (5) includes: a first mounting base (501), a movable column (502), and a first drive assembly (503). The movable column (502) is slidably mounted on the first mounting base (501) in a vertical direction. The first drive assembly (503) can drive the movable column (502) to slide vertically on the first mounting base (501). The gripping mechanism (2) is connected to the movable column (502).

6. The transport device for membrane electrode fabrication according to claim 5, characterized in that, The first mounting base (501) is a cylindrical structure. Vertical first slide rails (505) are fixedly connected to both sides of the movable column (502). A first slider (504) corresponding to the two first slide rails (505) is fixedly connected to the first mounting base (501). The first slider (504) is slidably connected to the corresponding first slide rail (505).

7. The transport device for membrane electrode fabrication according to claim 5, characterized in that, The Z-axis lifting module (5) further includes a first substrate (506) and a second substrate (507). The first substrate (506) and the second substrate (507) are connected by an elastic component (508). The first substrate (506) is fixedly connected to the lower end of the movable column (502). The second substrate (507) is located below the first substrate (506). The plate body (202) is fixedly connected to the lower side of the first substrate (506).

8. The transport device for membrane electrode fabrication according to claim 7, characterized in that, The elastic component (508) includes a sliding sleeve (5081), a sliding rod (5082), and an elastic element (5083). The sliding sleeve (5081) is fixedly connected to the first substrate (506). The sliding rod (5082) is slidably connected inside the sliding sleeve (5081). The lower end of the sliding rod (5082) is fixedly connected to the second substrate (507). The top end of the sliding rod (5082) extends out of the sliding sleeve (5081). A stop (5084) is fixedly connected to the top end of the sliding rod (5082). The diameter of the stop (5084) is larger than the inner diameter of the sliding sleeve (5081). The elastic element (5083) is disposed between the first substrate (506) and the second substrate (507). The elastic force of the elastic element (5083) can make the first substrate (506) and the second substrate (507) tend to move away from each other.

9. The transport device for membrane electrode fabrication according to claim 5, characterized in that, The X-axis moving module (3) includes a crossbeam (301), a second drive assembly (302), and two second mounting seats (303). The two second mounting seats (303) are slidably mounted on the frame (1). The two ends of the crossbeam (301) are fixedly connected to the two second mounting seats (303) respectively. The second drive assembly (302) can drive the second mounting seats (303) to slide on the frame (1). The Y-axis moving module (4) is set on the crossbeam (301).

10. The transport device for membrane electrode fabrication according to claim 9, characterized in that, The Y-axis moving module (4) includes a third mounting base (401) and a third drive assembly (402). The third mounting base (401) is slidably mounted on the crossbeam (301). The third drive assembly (402) can drive the third mounting base (401) to slide on the crossbeam (301). The first mounting base (501) is fixedly connected to the third mounting base (401).

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