Frame separation apparatus and method for fuel cell polar plates

Abstract

The present disclosure relates to a frame separation device and method for fuel cell polar plate, the guide rail in the device comprises a first guide rail and a second guide rail arranged perpendicular to each other, the second guide rail is arranged on the first guide rail and can move along the first guide rail; a support is arranged on the second guide rail for moving along the second guide rail; and a suction cup assembly comprises a first suction cup and a second suction cup connected with the support respectively, the suction end of the first suction cup is used for selectively connecting with the polar plate, and the suction end of the second suction cup is used for selectively connecting with the frame, wherein the suction end of the second suction cup can be arranged flush with the suction end of the first suction cup at a first preset position, and staggered with the suction end of the first suction cup at a second preset position to form a height difference, so that the frame is separated from the polar plate, the overall structure is relatively simple, the operation is convenient, the separation efficiency of the polar plate and the frame is improved, the separation effect is good, the plate type quality of the polar plate is effectively protected, and the polar plate structure is prevented from being damaged.

Description

Technical Field

[0001] This disclosure relates to the field of fuel cell fabrication technology, and more specifically, to a frame separation device and method for fuel cell plates. Background Technology

[0002] The plates of fuel cells are typically made from thin-walled metal sheets (such as stainless steel or titanium alloys) using a precision stamping process. During the manufacturing process, in order to obtain the pre-designed plate shape, the metal sheet is usually cut to separate the plate body from the frame.

[0003] In related technologies, the separation of the electrode plate from the frame mainly includes two methods: manual separation and robotic separation. Manual separation has low efficiency, and the force and angle during separation are difficult to control precisely, easily leading to damage to the separated electrode plate. Furthermore, this method can only be applied to small-batch production lines. While robotic separation improves automation, existing robotic arms have complex structures, making system programming and debugging difficult, and resulting in higher production costs. Summary of the Invention

[0004] The purpose of this disclosure is to provide a frame separation device and method for fuel cell plates, so as to at least partially solve the problems existing in the above-mentioned related technologies.

[0005] To achieve the above objectives, a first aspect of this disclosure provides a frame separation device for a fuel cell electrode plate, comprising: a guide rail, including a first guide rail and a second guide rail arranged perpendicularly to each other, the second guide rail being disposed on the first guide rail and configured to move along the extension direction of the first guide rail; a bracket, disposed on the second guide rail and used to move along the extension direction of the second guide rail; and a suction cup assembly, including a first suction cup and a second suction cup respectively connected to the bracket, wherein the suction end of the first suction cup is used to selectively connect with the electrode plate, and the suction end of the second suction cup is used to selectively connect with the frame, wherein the suction end of the second suction cup is configured to be flush with the suction end of the first suction cup in a first preset position, and staggered with the suction end of the first suction cup in a second preset position, so that the frame detaches from the electrode plate.

[0006] Optionally, the first suction cup is configured as a straight-rod vacuum suction cup, and the second suction cup is configured as an elastic vacuum suction cup. The second suction cup has an elastic element inside, and the suction end of the second suction cup is configured to move axially to change the extension and contraction state of the elastic element. When the second suction cup is in the first preset position, the elastic element is compressed so that the suction end of the second suction cup is flush with the suction end of the first suction cup. When the second suction cup is in the second preset position, the elastic element returns to its natural length so that the suction end of the second suction cup is staggered with the suction end of the first suction cup.

[0007] Optionally, there are multiple brackets, which are respectively arranged on both sides of the second guide rail in a direction parallel to the first guide rail. Each bracket is provided with a strip-shaped hole, wherein the suction cup assembly is at least partially inserted through the strip-shaped hole for moving along the strip-shaped hole, and the suction cup assembly is configured to be selectively fixedly connected to the bracket by a positioning member.

[0008] Optionally, the bracket includes: a first bracket for connecting to the first suction cup; and a second bracket for connecting to the second suction cup, wherein the first bracket is disposed relative to the second bracket in a direction close to the first guide rail, for connecting the first suction cup located on the first bracket to the electrode plate, and for connecting the second suction cup located on the second bracket to the frame.

[0009] Optionally, the first bracket is configured in multiple groups, with the multiple groups of first brackets symmetrically arranged on both sides of the second guide rail, and each first bracket is connected to a first suction cup, so that the first suction cups are connected at uniform intervals along the circumference of the electrode plate; the second bracket is configured in multiple groups, with the multiple groups of second brackets symmetrically arranged on both sides of the second guide rail, and each second bracket is connected to a second suction cup, so that the second suction cups are connected at uniform intervals along the circumference of the frame.

[0010] Optionally, a first vacuum generator and a second vacuum generator are provided on the first guide rail. The first vacuum generator is connected to the first suction cup through a first pipe, and the second vacuum generator is connected to the second suction cup through a second pipe.

[0011] Optionally, it also includes multiple pipe joints disposed on the first pipe and the second pipe, for simultaneously connecting the first vacuum generator to multiple first suction cups, and simultaneously connecting the second vacuum generator to multiple second suction cups.

[0012] Optionally, it also includes a control component and an air source, the air source being connected to the control component, the control component being connected to the first vacuum generator and the second vacuum generator respectively, for enabling the first vacuum generator to control the first suction cup to selectively connect with the electrode plate, and enabling the second vacuum generator to control the second suction cup to selectively connect with the frame.

[0013] Optionally, the control component is electrically connected to the second guide rail and is used to drive the second guide rail to move along the extension direction of the first guide rail.

[0014] A second aspect of this disclosure provides a method for separating the frame of a fuel cell electrode plate, applied to the frame separation device provided in the first aspect of this disclosure. The method includes: controlling a second guide rail to move along a first guide rail to above the electrode plate; activating a first vacuum generator to adsorb and connect a first suction cup to the electrode plate, and activating a second vacuum generator to adsorb and connect a second suction cup to the frame; controlling the second guide rail to move along the first guide rail to a discharge area, and the second suction cup returning to its natural length to separate the electrode plate from the frame; deactivating the second vacuum generator to allow the frame to fall into the discharge area; and controlling the second guide rail to move along the first guide rail to a discharge area, and deactivating the first vacuum generator to allow the electrode plate to fall into the discharge area.

[0015] Through the above technical solution, the first suction cup of the suction cup assembly in this device can adsorb the electrode plate area of ​​the metal plate, and the second suction cup can adsorb the edge area of ​​the electrode plate. After the second guide rail takes the electrode plate away from the punching die, the adsorption end of the second suction cup can move axially to intersect with the adsorption end of the first suction cup to form a height difference, thereby detaching the edge from the electrode plate. The overall structure is relatively simple, the operation is convenient, the separation efficiency between the electrode plate and the edge is improved, and the separation effect is good, effectively protecting the plate shape quality of the electrode plate and avoiding damage to the electrode plate structure.

[0016] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of a frame separation device for fuel cell plates, according to an exemplary embodiment.

[0019] Figure 2 This is a schematic diagram illustrating the structure of the second suction cup in a first preset position according to an exemplary embodiment.

[0020] Figure 3 This is a schematic diagram illustrating the structure of the second suction cup in a second preset position according to an exemplary embodiment.

[0021] Explanation of reference numerals in the attached figures:

[0022] 11-First guide rail, 12-Second guide rail, 21-First bracket, 22-Second bracket, 23-Strip hole, 31-First suction cup, 32-Second suction cup, 33-Positioning component, 41-First vacuum generator, 411-First pipeline, 42-Second vacuum generator, 421-Second pipeline, 43-Pipeline connector, 5-Electrode plate, 6-Frame. Detailed Implementation

[0023] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0024] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" generally refer to the upper and lower, top and bottom of the relevant components in actual use, as shown in the reference. Figure 2 The top and bottom of the drawing represent the upper and lower parts of the frame separation device, and the vertical direction of the drawing represents the height direction. "Inner" and "outer" refer to the inner and outer parts of the relevant components relative to the actual outline. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not indicate sequence or importance.

[0025] refer to Figures 1 to 3 This disclosure provides, as an example, a frame separation device for a fuel cell electrode plate. The frame separation device includes a guide rail, a support, and a suction cup assembly. The guide rail includes a first guide rail 11 and a second guide rail 12 arranged perpendicularly to each other. The second guide rail 12 is disposed on the first guide rail 11 and configured to move along the extending direction of the first guide rail 11. The support is disposed on the second guide rail 12 and is used to move along the extending direction of the second guide rail 12. The suction cup assembly includes a first suction cup 31 and a second suction cup 32 respectively connected to the support. The suction end of the first suction cup 31 is used to selectively connect with the electrode plate 5, and the suction end of the second suction cup 32 is used to selectively connect with the frame 6. The suction end of the second suction cup 32 is configured to be flush with the suction end of the first suction cup 31 in a first preset position and staggered with the suction end of the first suction cup 31 in a second preset position, so that the frame 6 detaches from the electrode plate 5.

[0026] In the above embodiments, the fuel cell electrode plate 5 and frame 6 are generally still connected after being processed on the punching die, requiring precise separation to ensure the subsequent assembly accuracy of the electrode plate 5. The frame separation device provided in this disclosure can move along the first guide rail 11 via the second guide rail 12, thereby moving the electrode plate area of ​​the processed metal plate horizontally through the bracket and suction cup assembly. This can be used to adjust the relative positions of the suction cup assembly with the electrode plate 5 and frame 6 respectively, and can be adapted to fuel cell electrode plates of different specifications. By switching the adsorption ends of the first suction cup 31 and the second suction cup 32 to be flush and staggered, after adsorbing and fixing the electrode plate 5 and frame 6, a separation force is formed by the positional difference in the height direction, realizing the smooth separation of the frame 6 and the electrode plate 5, avoiding deformation or damage to the electrode plate 5 during the separation process. The operation is simple, the separation efficiency is high, and the stability is good.

[0027] Through the above technical solution, the first suction cup 11 of the suction cup assembly in this device can adsorb the electrode plate area of ​​the metal plate, and the second suction cup 12 can adsorb the edge area of ​​the electrode plate 5. After the second guide rail 12 takes the electrode plate 5 away from the punching die, the adsorption end of the second suction cup 32 can move axially to intersect with the adsorption end of the first suction cup 31 to form a height difference, thereby detaching the edge 6 from the electrode plate 5. The overall structure is relatively simple, the operation is convenient, the separation efficiency of the electrode plate 5 and the edge 6 is improved, and the separation effect is good, effectively protecting the plate quality of the electrode plate 5 and avoiding damage to the structure of the electrode plate 5.

[0028] In other embodiments, the guide rail may be mounted on a movable member (not shown in the figure), which can move in a plane parallel to the electrode plate 5 to drive the guide rail as a whole to move, so that the first guide rail 11 and the second guide rail 12 are respectively adjusted to positions opposite to the electrode plate area, and after forming a connection with the electrode plate area, the electrode plate 5 and the frame 6 are transferred as a whole to a preset position above the unloading area or the discharge area. Specifically, the movable member may include a first movable member and a second movable member. The first guide rail 11 may be mounted on the first movable member, and the second movable member may be mounted on the first guide rail 11 or the first movable member, so that the second guide rail 12 moves relative to the first guide rail 11 through the second movable member. This disclosure does not impose specific restrictions on the location and form of the first and second moving parts. For example, the first moving part can be a robotic arm or a robotic gripper, and the second moving part can be a sliding sleeve fitted on the first moving part or the first guide rail 11. Those skilled in the art can freely change the specific structure of the first and second moving parts according to actual needs, and can also make adaptive adjustments according to the distance and relative orientation between the punch die, the unloading area and the feeding area, which will not be elaborated here.

[0029] In some embodiments, refer to Figures 1 to 3The first suction cup 31 can be configured as a straight-rod vacuum suction cup, and the second suction cup 32 can be configured as an elastic vacuum suction cup. An elastic element can be provided inside the second suction cup 32, and the suction end of the second suction cup 32 can be configured to move axially to change the extension / retraction state of the elastic element. Specifically, in the first preset position, the elastic element of the second suction cup 32 can be compressed so that the suction end of the second suction cup 32 is flush with the suction end of the first suction cup 31, and in the second preset position, the elastic element can return to its natural length so that the suction ends of the second suction cup 32 and the first suction cup 31 are staggered.

[0030] In the above embodiments, both the first suction cup 31 and the second suction cup 32 adopt a vacuum suction cup structure, which can create a vacuum between the suction cup and the electrode area of ​​the metal plate, thereby forming a stable adsorption connection with the electrode area and ensuring that the electrode area is fixed in position during separation, preventing it from shaking. The second suction cup 32 is an elastic vacuum suction cup with a built-in elastic element. The position of the adsorption end can be changed by the expansion and contraction of the elastic element, eliminating the need for a complex driving mechanism, simplifying the device structure and reducing manufacturing costs. When the elastic element is compressed, the adsorption ends of the two suction cups are flush, allowing for precise adsorption of the electrode 5 and the frame 6 simultaneously. When the elastic element returns to its natural length, the adsorption end of the second suction cup 32 is displaced relative to the adsorption end of the first suction cup 31, forming an interlaced state in the height direction. This displacement difference applies a force in the height direction to the frame 6, causing the frame 6 to separate quickly from the electrode 5. The elastic structure also buffers the force during separation, thus preventing damage to the electrode 5.

[0031] In some embodiments, refer to Figures 1 to 3 The number of brackets can be multiple, and the multiple brackets can be configured to be respectively arranged on both sides of the second guide rail 12 in a direction parallel to the first guide rail 11. The brackets can be provided with strip holes 23, wherein the suction cup assembly can be at least partially inserted through the strip holes 23 for moving along the strip holes 23, and the suction cup assembly can be configured to be selectively fixedly connected to the bracket through the positioning member 33.

[0032] In the above embodiment, multiple supports can be respectively arranged on both sides of the second guide rail 12, enabling simultaneous adsorption connection from both sides of the electrode plate 5 and the frame 6, improving the stability and uniformity of adsorption, and avoiding tilting and deformation of the electrode plate 5 or the frame 6 caused by unilateral adsorption. The strip holes 23 on the supports provide movement space for the suction cup assembly, allowing the suction cup assembly to be adjusted in installation position according to the size and position of the electrode plate 5 and the frame 6, adapting to different specifications of fuel cell electrode plates, and improving the versatility of the device. The positioning component 33 can adopt a structure such as bolts or pins, and is fixed to the support after the suction cup assembly is adjusted to a suitable position, ensuring the stability of the suction cup assembly during separation, avoiding displacement from affecting the separation effect, and providing convenient operation and reliable fixation.

[0033] In some embodiments, refer toFigures 1 to 3 The bracket may include a first bracket 21 and a second bracket 22. The first bracket 21 can be used to connect with the first suction cup 31, and the second bracket 22 can be used to connect with the second suction cup 32. The first bracket 21 may be disposed relative to the second bracket 22 in a direction close to the first guide rail 11, so that the first suction cup 31 located on the first bracket 21 can be connected to the electrode plate 5, and the second suction cup 32 located on the second bracket 22 can be connected to the frame 6.

[0034] In the above embodiment, the support is divided into a first support 21 and a second support 22, which are respectively connected to the first suction cup 31 and the second suction cup 32, realizing the classified installation and independent adjustment of the suction cup components. This facilitates the calibration and adjustment of the suction cup positions according to the positional characteristics of the electrode plate 5 and the frame 6. By setting the first support 21 close to the first guide rail 11, the first suction cup 31 can be positioned to adsorb the main body area of ​​the electrode plate 5. The second support 22 is positioned relatively outward, allowing the second suction cup 32 to accurately adsorb the frame 6. This ensures a reasonable adsorption position, avoids mutual interference between the suction cups, and provides a reasonable spatial basis for the subsequent staggered separation of the adsorption ends, further improving the accuracy of the separation action.

[0035] In some embodiments, refer to Figures 1 to 3 The first bracket 21 can be configured in multiple groups, and the multiple groups of first brackets 21 can be symmetrically arranged on both sides of the second guide rail 12. Each first bracket 21 is connected to a first suction cup 31, so that the first suction cups 31 are evenly spaced along the circumference of the electrode plate 5. The second bracket 22 can be configured in multiple groups, and the multiple groups of second brackets 22 can be symmetrically arranged on both sides of the second guide rail 12. Each second bracket 22 is connected to a second suction cup 32, so that the second suction cups 32 are evenly spaced along the circumference of the frame 6.

[0036] In the above embodiments, multiple sets of first supports 21 and second supports 22 are symmetrically arranged so that the first suction cups 31 and second suction cups 32 can be evenly distributed along the circumference of the electrode plate 5 and the frame 6, so that the adsorption force on the electrode plate 5 and the frame 6 is evenly distributed, avoiding excessive local adsorption force that could cause deformation or damage to the electrode plate 5 or the frame 6. This is especially suitable for fuel cell electrode plates that are brittle or require high precision. The symmetrical arrangement also ensures that the electrode plate 5 and the frame 6 are balanced in force during separation, preventing displacement during separation, improving the flatness and precision of the separated electrode plate 5 and the frame 6, and meeting the subsequent assembly requirements of the fuel cell.

[0037] In some embodiments, refer to Figures 1 to 3 A first vacuum generator 41 and a second vacuum generator 42 may be provided on the first guide rail 11. The first vacuum generator 41 and the first suction cup 31 can be connected through the first pipe 411, and the second vacuum generator 42 and the second suction cup 32 can be connected through the second pipe 421.

[0038] In the above embodiments, the independently configured first vacuum generator 41 and second vacuum generator 42 can control the adsorption actions of the first suction cup 31 and the second suction cup 32 respectively through the first pipeline 411 and the second pipeline 421, realizing independent control of the electrode plate 5 and the frame 6 during the adsorption and release process. This facilitates precise adjustment of the working state of each suction cup according to the separation process. For example, the two vacuum generators can be started simultaneously to achieve adsorption, and after separation, they can be turned off separately to release the frame 6 and the electrode plate 5 in stages. The operation is flexible and highly controllable. The independent pipeline design also avoids mutual interference, ensures stable adsorption pressure, improves the reliability of suction cup adsorption, and prevents air leakage during adsorption that could cause the electrode plate 5 or the frame 6 to fall off.

[0039] In some embodiments, refer to Figures 1 to 3 The frame separation device may also include multiple pipe joints 43, which may be disposed on the first pipe 411 and the second pipe 421, for simultaneously connecting the first vacuum generator 41 with multiple first suction cups 31 and simultaneously connecting the second vacuum generator 42 with multiple second suction cups 32.

[0040] In the above embodiments, the pipe joint 43 can adopt a tee, cross, or other structure (see appendix). Figures 1 to 3 (This article uses a three-way structure as an example for illustration), which allows a single vacuum generator to connect to multiple suction cups simultaneously, eliminating the need for an independent vacuum generator for each suction cup, simplifying the device structure, and reducing equipment costs and energy consumption. Through the diversion effect of the pipe connector 43, multiple first suction cups 31 can obtain uniform adsorption pressure. Similarly, multiple second suction cups 32 can maintain a consistent adsorption pressure under the control of the second vacuum generator 42, thereby ensuring uniform circumferential force on the electrode plate 5 and the frame 6, guaranteeing the stability of adsorption or separation with the suction cups. Simultaneously, unified control of the adsorption and release of multiple suction cups improves operational efficiency and makes the separation process smoother.

[0041] In some embodiments, refer to Figures 1 to 3 The frame separation device may also include a control component and an air source. The air source may be connected to the control component. The control component may be connected to the first vacuum generator 41 and the second vacuum generator 42 respectively, for the first vacuum generator 41 to control the first suction cup 31 to selectively connect with the electrode plate 5, and for the second vacuum generator 42 to control the second suction cup 32 to selectively connect with the frame 6.

[0042] In the above embodiment, the gas source provides power to the vacuum generator, and the control component can adopt a PLC controller or similar structure to achieve automated control of the entire separation device. By controlling the start and stop of the first vacuum generator 41 and the second vacuum generator 42, the adsorption and release of the first suction cup 31 and the second suction cup 32 are controlled, eliminating the need for manual operation, improving the automation and efficiency of the separation process, and reducing human error. The control component can also coordinate the actions of each component according to a preset program, ensuring the orderly progress of the separation process and guaranteeing the consistency of the separation effect, making it suitable for large-scale batch production scenarios.

[0043] In some embodiments, refer to Figures 1 to 3 The control component can be electrically connected to the second guide rail 12 to drive the second guide rail 12 to move along the extension direction of the first guide rail 11.

[0044] In the above embodiment, the control component is electrically connected to the second guide rail 12. A motor or other driving component can move the second guide rail 12 along the first guide rail 11, achieving automated horizontal positioning of the suction cup assembly. This allows for precise movement to preset positions such as above the electrode plate 5, the unloading area, and the discharge area, eliminating the need for manual adjustment and further enhancing the automation level of the device. The control component can preset the movement path and positioning accuracy, ensuring accurate positioning of the second guide rail 12. This provides assurance for subsequent adsorption, separation, and unloading actions, reducing the impact of positioning errors on the separation effect and improving overall operational efficiency.

[0045] A second aspect of this disclosure exemplarily provides a method for separating the frame of a fuel cell electrode plate, applicable to the frame separation apparatus provided in any of the above embodiments. The method includes the following steps:

[0046] S101, control the second guide rail 12 to move along the first guide rail 11 to above the electrode plate 5.

[0047] S201, turn on the first vacuum generator 41 to make the first suction cup 31 adsorb and connect with the electrode plate 5, and turn on the second vacuum generator 42 to make the second suction cup 32 adsorb and connect with the frame 6.

[0048] S301, control the second guide rail 12 to move along the first guide rail 11 to the unloading area, and the second suction cup 32 returns to its natural length so that the electrode plate 5 separates from the frame 6.

[0049] S401, shut down the second vacuum generator 42 to allow the frame 6 to fall into the unloading area.

[0050] S501, control the second guide rail 12 to move along the first guide rail 11 to the discharge area, and turn off the first vacuum generator 41 so that the electrode plate 5 falls into the discharge area.

[0051] In the above embodiment, the frame separation method is based on the aforementioned separation device, enabling automated separation and classified collection of the electrode plate 5 and the frame 6. First, precise positioning is achieved by controlling the movement of the second guide rail 12, ensuring the suction cup assembly accurately aligns with the electrode plate 5 and the frame 6. Then, two vacuum generators are simultaneously activated, causing the first suction cup 31 and the second suction cup 32 to respectively adsorb the electrode plate 5 and the frame 6, ensuring a firm adsorption. After the electrode plate is moved to above the unloading area by the movement of the second guide rail 12, the adsorption ends of the second suction cup 32, after returning to their natural length, are staggered, achieving smooth separation of the electrode plate 5 and the frame 6. The separation method is simple and easy to operate, and has high separation efficiency. Afterwards, the frame 6 and the electrode plate 5 can be released separately in the unloading area and the discharge area for classified collection, preventing the electrode plate 5 and the frame 6 from mixing after separation and improving subsequent processing efficiency. The entire method has a high degree of automation, stable separation effect, and can adapt to large-scale batch production needs, effectively reducing labor costs and ensuring consistent product quality.

[0052] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0054] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A frame separation device for fuel cell electrode plates, characterized in that, include: The guide rail includes a first guide rail and a second guide rail arranged perpendicularly to each other, the second guide rail being disposed on the first guide rail and configured to be movable along the extension direction of the first guide rail; A bracket is mounted on the second guide rail and is used to move along the extension direction of the second guide rail; The assembly includes a first suction cup and a second suction cup, which are respectively connected to the bracket. The suction end of the first suction cup is used to selectively connect with the electrode plate, and the suction end of the second suction cup is used to selectively connect with the frame. The suction end of the second suction cup is configured to be flush with the suction end of the first suction cup in a first preset position and staggered with the suction end of the first suction cup in a second preset position, so that the frame can detach from the electrode plate.

2. The frame separation device according to claim 1, characterized in that, The first suction cup is a straight vacuum suction cup, the second suction cup is an elastic vacuum suction cup, the second suction cup is provided with an elastic element inside, and the suction end of the second suction cup is configured to be able to move along the axial direction to change the extension and contraction state of the elastic element. Wherein, when the second suction cup is in the first preset position, the elastic element is compressed so that the suction end of the second suction cup is flush with the suction end of the first suction cup, and when the second suction cup is in the second preset position, the elastic element returns to its natural length so that the suction end of the second suction cup is staggered with the suction end of the first suction cup.

3. The frame separation device according to claim 1, characterized in that, The number of brackets is multiple, and the multiple brackets are respectively arranged on both sides of the second guide rail along a direction parallel to the first guide rail. Each bracket is provided with a strip-shaped hole, wherein the suction cup assembly is at least partially inserted through the strip-shaped hole for moving along the strip-shaped hole, and the suction cup assembly is configured to be selectively fixedly connected to the bracket by a positioning member.

4. The frame separation device according to claim 3, characterized in that, The support includes: A first bracket is used to connect to the first suction cup; The first bracket and the second bracket are used to connect with the second suction cup, wherein the first bracket is disposed relative to the second bracket in a direction close to the first guide rail, for connecting the first suction cup located on the first bracket to the electrode plate, and for connecting the second suction cup located on the second bracket to the frame.

5. The frame separation device according to claim 4, characterized in that, The first bracket is configured as multiple sets, and the multiple sets of the first bracket are symmetrically arranged on both sides of the second guide rail, and each first bracket is connected to a first suction cup, so that the first suction cups are evenly spaced along the circumference of the electrode plate. The second bracket is configured in multiple groups, and the multiple groups of the second bracket are symmetrically arranged on both sides of the second guide rail. Each second bracket is connected to a second suction cup, so that the second suction cup is evenly spaced from the frame in the circumference.

6. The frame separation device according to claim 2, characterized in that, The first guide rail is equipped with a first vacuum generator and a second vacuum generator. The first vacuum generator is connected to the first suction cup through a first pipe, and the second vacuum generator is connected to the second suction cup through a second pipe.

7. The frame separation device according to claim 6, characterized in that, It also includes multiple pipe joints, which are disposed on the first pipe and the second pipe, for simultaneously connecting the first vacuum generator to multiple first suction cups and simultaneously connecting the second vacuum generator to multiple second suction cups.

8. The frame separation device according to claim 6, characterized in that, It also includes a control component and an air source, the air source being connected to the control component, the control component being connected to the first vacuum generator and the second vacuum generator respectively, for enabling the first vacuum generator to control the first suction cup to selectively connect with the electrode plate, and enabling the second vacuum generator to control the second suction cup to selectively connect with the frame.

9. The frame separation device according to claim 8, characterized in that, The control component is electrically connected to the second guide rail and is used to drive the second guide rail to move along the extension direction of the first guide rail.

10. A method for separating the frame of a fuel cell electrode plate, applied to the frame separation device according to any one of claims 1-9, characterized in that, The method includes: Control the second guide rail to move along the first guide rail to above the electrode plate; Turn on the first vacuum generator to make the first suction cup adsorb and connect with the electrode plate, and turn on the second vacuum generator to make the second suction cup adsorb and connect with the frame. The second guide rail is controlled to move along the first guide rail to the unloading area, and the second suction cup returns to its natural length to separate the electrode plate from the frame. Turn off the second vacuum generator to allow the frame to fall into the unloading area; And control the second guide rail to move along the first guide rail to the discharge area, and turn off the first vacuum generator so that the electrode plate falls into the discharge area.

Images