A tooling fixture for bipolar plate fabrication and its application method

Abstract

This invention proposes a bipolar plate manufacturing fixture and its application method, comprising a first telescopic mechanism, a gripper mechanism, a second telescopic mechanism, and a pneumatic suction cup mechanism. The first telescopic mechanism includes a first telescopic mechanism body and a first movable end, with the gripper mechanism disposed on the first movable end. The second telescopic mechanism includes a second telescopic mechanism body and a second movable end, with the second telescopic mechanism body disposed on the first telescopic mechanism body and the pneumatic suction cup mechanism disposed on the second movable end. This device, through the gripper mechanism and the pneumatic suction cup mechanism, can grasp the bipolar plate frame, bipolar plate feed material, and edge waste. Thus, this device meets the grasping requirements of all materials during bipolar plate production. Furthermore, the two telescopic mechanisms can adjust the relative positions of the gripper mechanism and the pneumatic suction cup mechanism, effectively avoiding interference between the gripper mechanism and the pneumatic suction cup mechanism during the manufacturing process. Therefore, this fixture meets the requirements of the bipolar plate production process and has the advantages of comprehensive functionality and good versatility.

Description

Technical Field

[0001] This invention relates to the field of bipolar plate processing technology, and in particular to a bipolar plate preparation tooling fixture and its application method. Background Technology

[0002] Bipolar plates, also known as current collectors, are core components of fuel cell stacks. They mainly function as sealants and conduct current. Bipolar plates typically consist of two parts: a graphite plate and a frame. During the production of bipolar plates, they need to be impregnated under pressure to improve their strength and conductivity.

[0003] An existing invention patent application with publication number CN114725417A discloses a continuous preparation method and equipment for graphite bipolar plates. The preparation method uses an expanded graphite material silo, a roll forming device, a cutting machine, an impregnation device, a continuous drying oven, and a hot press. The steps include: S1. Adding raw materials to the expanded graphite material silo to obtain a graphite bipolar plate base material; S2. Continuously pressing the graphite bipolar plate base material using the roll forming device to obtain a graphite bipolar plate blank; S3. Cutting the graphite bipolar plate blank using the cutting machine to obtain a graphite bipolar plate monomer; S4. Feeding the graphite bipolar plate monomer into the impregnation device and continuously impregnating it in the impregnation solution, followed by cleaning; S5. Feeding the cleaned graphite bipolar plate monomer into the continuous drying oven for drying and curing treatment; S6. Feeding the dried and cured graphite bipolar plate monomer into the hot press for continuous hot pressing to obtain a graphite bipolar plate.

[0004] As described in the above technical solution, the fabrication process of graphite bipolar plates involves several steps. During the process flow, the graphite plates need to be gripped several times and also require assembly of the frame. To improve production efficiency, tooling fixtures are often used for material transfer in production. However, existing tooling fixtures cannot meet the multi-step gripping production requirements of bipolar plates and have poor versatility. Therefore, there is an urgent need for a tooling fixture that can meet the multi-step transfer requirements of bipolar plates. Summary of the Invention

[0005] In view of this, the present invention proposes a tooling fixture and application method for bipolar plate preparation. The tooling fixture can meet the needs of multiple processes in bipolar plate production and has the advantages of comprehensive functions and good versatility, so as to solve the problem of the single gripping purpose of existing tooling fixtures.

[0006] The technical solution of this invention is implemented as follows:

[0007] On one hand, the present invention provides a bipolar plate manufacturing fixture, including a first telescopic mechanism, a gripper mechanism, a second telescopic mechanism, and a pneumatic suction cup mechanism, wherein,

[0008] The first telescopic mechanism includes a first telescopic mechanism body and a first movable end, the first movable end being capable of linear motion relative to the first telescopic mechanism body;

[0009] A gripper mechanism is provided on the first movable end. The gripper mechanism is used to grip the bipolar plate frame and the finished bipolar plate.

[0010] The second telescopic mechanism includes a second telescopic mechanism body and a second movable end. The second telescopic mechanism body is disposed on the first telescopic mechanism body, and the second movable end can move linearly relative to the second telescopic mechanism body.

[0011] A pneumatic suction cup mechanism is located on the second movable end, and multiple second telescopic mechanisms and pneumatic suction cup mechanisms are arranged around the body of the first telescopic mechanism. The pneumatic suction cup mechanism is used to grip bipolar plate blanks and scrap materials.

[0012] Based on the above technical solutions, preferably, the first telescopic mechanism further includes a carrier plate, which comprises two large surfaces and multiple side surfaces, wherein...

[0013] The first telescopic mechanism body is set on a large surface, and the first movable end penetrates through the carrier plate;

[0014] The second telescopic mechanism is located on the side.

[0015] Based on the above technical solutions, preferably, it also includes an air path control mechanism, which is mounted on the carrier plate and is used for air path control of the pneumatic suction cup mechanism.

[0016] The number of sides of the carrier plate is even, and the air circuit control mechanism and the second telescopic mechanism body are staggered on the sides.

[0017] Based on the above technical solutions, preferably, the gas path control mechanism includes a first bracket, a solenoid valve, and a vacuum gauge, wherein,

[0018] The first support is mounted on the carrier plate;

[0019] The solenoid valve is mounted on the first bracket;

[0020] A vacuum gauge is mounted on the first bracket, and the solenoid valve, vacuum gauge, and pneumatic suction cup mechanism are connected by pipelines.

[0021] Based on the above technical solutions, preferably, a groove corresponding to the body of the second telescopic mechanism is provided on the side of the carrier plate.

[0022] Based on the above technical solutions, preferably, the pneumatic suction cup mechanism includes a second support, a pneumatic suction cup, and a vacuum generator, wherein...

[0023] The second bracket is mounted on the second movable end;

[0024] A pneumatic suction cup is mounted on the second bracket.

[0025] A vacuum generator is mounted on the body of the second telescopic mechanism, and the vacuum generator is connected to the pneumatic suction cup via a pipeline.

[0026] Based on the above technical solutions, preferably, the gripper mechanism is a cylinder gripper, and two gripper mechanisms are arranged in parallel.

[0027] Based on the above technical solutions, preferably, a connecting frame is also included. The connecting frame includes a connecting rod, a connecting plate, and a mounting base, wherein...

[0028] The connecting rod is disposed on the side of the carrier plate away from the first movable end;

[0029] A connecting plate is located on the end of the connecting rod furthest from the carrier plate.

[0030] The mounting base is located on the side of the connecting plate away from the connecting rod.

[0031] Based on the above technical solutions, preferably, both the first telescopic mechanism and the second telescopic mechanism are cylinders, and the first movable end and the second movable end are the piston rods of the cylinders.

[0032] On the other hand, the present invention provides a method for applying the above-mentioned bipolar plate manufacturing tooling fixture, comprising the following steps:

[0033] S1. The second telescopic mechanism drives the pneumatic suction cup mechanism to extend and grab the bipolar plate blank inside the press.

[0034] S2. The pneumatic suction cup mechanism puts the bipolar plate blank into the cutting machine for cutting. After cutting, the pneumatic suction cup mechanism grabs the bipolar plate blank and the scrap material. After discarding the scrap material, the second telescopic mechanism drives the pneumatic suction cup mechanism to retract.

[0035] S3. The first telescopic mechanism drives the gripper mechanism to extend, the gripper mechanism grabs a bipolar plate frame and places it on the worktable, the second telescopic mechanism drives the pneumatic suction cup mechanism to extend, the pneumatic suction cup mechanism places the bipolar plate blank on the bipolar plate frame, and then the second telescopic mechanism resets and retracts.

[0036] S4. The gripper mechanism picks up the second bipolar plate frame and places it on the bipolar plate blank. The two bipolar plate frames interlock to clamp and fix the bipolar plate blank, forming the finished bipolar plate.

[0037] S5. The gripper mechanism picks up the assembled bipolar plate and puts it into the immersion tank for soaking. Then the first telescopic mechanism resets and retracts. Repeat steps S1 to S5 for mass production.

[0038] S6. After the batch of products has been impregnated, the second telescopic mechanism is in the reset and retracted state. The first telescopic mechanism drives the gripper mechanism to extend, remove the finished bipolar plate from the impregnation tank and place it to dry. Then the first telescopic mechanism drives the gripper mechanism to reset and retract.

[0039] The bipolar plate fabrication fixture and application method of the present invention have the following advantages over the prior art:

[0040] (1) By setting a gripper mechanism to hold the bipolar plate frame and the finished bipolar plate, and a pneumatic suction cup mechanism to grab the bipolar plate feed and scrap materials, this device can meet the gripping work of all materials during bipolar plate production. At the same time, a first telescopic mechanism is set to drive the gripper mechanism to move, and a second telescopic mechanism is set to drive the pneumatic suction cup mechanism to move. This can achieve misalignment of the gripper mechanism and the pneumatic suction cup mechanism to avoid interference between the gripper mechanism and the pneumatic suction cup mechanism in the preparation process. Thus, this tooling fixture meets the requirements of the bipolar plate production process and has the advantages of comprehensive functions and good versatility.

[0041] (2) A carrier plate is provided in the first telescopic mechanism. The carrier plate is polygonal, and the pneumatic suction cup mechanism and the air circuit control mechanism are arranged alternately on the carrier plate and surround the body of the first telescopic mechanism. In this way, the connecting pipelines of the pneumatic suction cup mechanism and the air circuit control mechanism are basically integrated on this tooling fixture, reducing the number of external pipelines. This makes the tooling fixture have the advantage of compact structure, which can reduce space occupation and facilitate the transfer between equipment used for graphite plate pressing, cutting and impregnation.

[0042] (3) A connecting frame is provided on the side of the carrier plate away from the first movable end. In this way, the tooling fixture can be easily connected to the drive mechanism such as the robotic arm to adjust the position of the tooling fixture without causing motion interference. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a perspective view of the bipolar plate fabrication fixture of the present invention;

[0045] Figure 2 This is an exploded view of the bipolar plate manufacturing tooling fixture of the present invention;

[0046] Figure 3A perspective view of the first telescopic mechanism and connecting frame of the bipolar plate manufacturing fixture of the present invention;

[0047] Figure 4 This is a front view of the first telescopic mechanism and connecting frame of the bipolar plate manufacturing tooling fixture of the present invention;

[0048] Figure 5 This is a perspective view of the gripper mechanism of the bipolar plate manufacturing fixture of the present invention.

[0049] Figure 6 This is a perspective view of the second telescopic mechanism and the pneumatic suction cup mechanism of the bipolar plate preparation fixture of the present invention.

[0050] Figure 7 A three-dimensional pneumatic suction cup mechanism for the bipolar plate manufacturing fixture of the present invention;

[0051] Figure 8 A perspective view of the pneumatic control mechanism of the bipolar plate fabrication fixture of the present invention;

[0052] Figure 9 A structural diagram of the finished bipolar plate used in the bipolar plate manufacturing tooling fixture of the present invention;

[0053] Figure 10 This is an exploded view of the finished bipolar plate.

[0054] In the figure: First telescopic mechanism 1, First telescopic mechanism body 11, First movable end 12, Carrier plate 13, Large surface 1301, Side surface 1302, Groove 1303, Gripper mechanism 2, Second telescopic mechanism 3, Second telescopic mechanism body 31, Second movable end 32, Pneumatic suction cup mechanism 4, Second bracket 41, Pneumatic suction cup 42, Vacuum generator 43, Air circuit control mechanism 5, First bracket 51, Solenoid valve 52, Vacuum gauge 53, Connecting frame 6, Connecting rod 61, Connecting plate 62, Mounting base 63, Bipolar plate frame 100, Bipolar plate blank 200, Finished bipolar plate S. Detailed Implementation

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0056] like Figure 1As shown, the bipolar plate preparation fixture of the present invention includes a first telescopic mechanism 1, a gripper mechanism 2, a second telescopic mechanism 3, a pneumatic suction cup mechanism 4, an air path control mechanism 5, and a connecting frame 6, which are used for gripping the bipolar plate frame 100, the bipolar plate blank 200, and the finished bipolar plate S after molding.

[0057] The first telescopic mechanism 1 includes a first telescopic mechanism body 11 and a first movable end 12, which can move linearly relative to the first telescopic mechanism body 11. A gripper mechanism 2 is disposed on the first movable end 12 and is used to grip the bipolar plate frame 100 and the finished bipolar plate S. As described above, driven by the first telescopic mechanism 1, the first movable end 12 can drive the gripper mechanism 2 to telescopically move, and then the gripper mechanism 2 can be used to transfer the bipolar plate frame 100 and the finished bipolar plate S between processes.

[0058] The second telescopic mechanism 3 includes a second telescopic mechanism body 31 and a second movable end 32. The second telescopic mechanism body 31 is mounted on the first telescopic mechanism body 11, and the second movable end 32 can move linearly relative to the second telescopic mechanism body 31. A pneumatic suction cup mechanism 4 is mounted on the second movable end 32, and multiple second telescopic mechanisms 3 and pneumatic suction cup mechanisms 4 are arranged around the first telescopic mechanism body 11. The pneumatic suction cup mechanism 4 is used to grip the bipolar plate blank 200 and the scrap material. As described above, driven by the second telescopic mechanism 3, the second movable end 32 can drive the pneumatic suction cup mechanism 4 to telescopic, and then the gripping and placement of the bipolar plate blank 200 and the cut scrap material can be completed by the pneumatic suction cup mechanism 4. The bipolar plate blank 200 has a plate-like structure, so the pneumatic suction cup mechanism 4 can easily remove the bipolar plate blank 200 from the press.

[0059] Specifically, during operation, the pneumatic suction cup mechanism 4 first picks up the bipolar plate blank 200, which has been rolled and formed by the press, and sends it to the cutting machine for cutting. After the cutting machine finishes cutting the bipolar plate blank 200, the pneumatic suction cup mechanism 4 then operates. Since multiple pneumatic suction cup mechanisms 4 are arranged around the first telescopic mechanism body 11, they can simultaneously pick up the cut bipolar plate blank 200 and the cut-off scrap material. The scrap material is then discarded, leaving only the bipolar plate blank 200. Finally, the gripper mechanism 2 picks up the bipolar plate frame 100 and assembles it with the bipolar plate blank 200. Since the gripper mechanism 2 can be adjusted in position via the first telescopic mechanism 1, and the pneumatic suction cup mechanism 4 can be adjusted via the second telescopic mechanism 3, the gripper mechanism 2 and the pneumatic suction cup mechanism 4 can be staggered to avoid interference between components and materials during operation, thereby ensuring successful assembly.

[0060] Since the bipolar plate frame 100 has a rectangular structure, the gripper mechanism 2 uses cylinder grippers, and two gripper mechanisms 2 are arranged side by side. The two gripper mechanisms 2 can better grip the bipolar plate frame 100, so as to avoid the problem of the bipolar plate frame 100 shifting during gripping, and improve the stability of gripping.

[0061] Preferably, both the first telescopic mechanism 1 and the second telescopic mechanism 3 are cylinders, and the first movable end 12 and the second movable end 32 are the piston rods of the cylinders. Using cylinders for both telescopic mechanisms has the advantage of sensitive operation and can ensure assembly efficiency.

[0062] In this tooling fixture, the first telescopic mechanism 1, the gripper mechanism 2, the second telescopic mechanism 3, and the pneumatic suction cup mechanism 4 are all pneumatic components, which can be driven by an air source. Due to the simplified driving method, the installation of power sources, pipelines, and other components is convenient, resulting in a simple tooling fixture structure.

[0063] To facilitate the installation of multiple pneumatic suction cup mechanisms 4, the first telescopic mechanism 1 also includes a carrier plate 13. The carrier plate 13 includes two large surfaces 1301 and multiple side surfaces 1302. The body 11 of the first telescopic mechanism is mounted on one of the large surfaces 1301, and the first movable end 12 passes through the carrier plate 13. The body 31 of the second telescopic mechanism is mounted on the side surface 1302. As described above, the carrier plate 13 is connected to the body 11 of the first telescopic mechanism, while the first movable end 12 is in a free state. The second telescopic mechanism 3 is positioned relative to the body 11 of the first telescopic mechanism through the carrier plate 13, which has the advantage of easy installation of the body 31 of the second telescopic mechanism. The pneumatic suction cup mechanism 4 can be installed on the second movable end 32 of the second telescopic mechanism 3. This structure allows the first movable end 12 and the second movable end 32 to move independently, thereby achieving mutual misalignment and avoiding interference between this tooling fixture and materials and production equipment in the bipolar plate production process.

[0064] The pneumatic suction cup mechanism 4 is controlled by the air path control mechanism 5, which is mounted on the carrier plate 13 and is used for air path control of the pneumatic suction cup mechanism 4. The carrier plate 13 has an even number of side surfaces 1302, and the air path control mechanism 5 and the second telescopic mechanism body 31 are staggered on the side surfaces 1302. As described above, since this tooling fixture needs to be transferred between multiple processes and will be used with various production equipment, it is necessary to ensure the compactness of the tooling fixture. This structural arrangement results in a layout where the first telescopic mechanism 1 is at the center, with the remaining components surrounding it. The pneumatic suction cup mechanism 4 and the air path control mechanism 5, which serves as the driving component, are integrated, resulting in a reasonable and compact overall layout, thus facilitating the transfer and use of this tooling fixture between processes.

[0065] Furthermore, a groove 1303 corresponding to the second telescopic mechanism body 31 is provided on the side 1302 of the carrier plate 13. As described above, since the carrier plate 13 needs to install two components, the air circuit control mechanism 5 and the second telescopic mechanism body 31, the groove 1303 is provided on the carrier plate 13. This makes it easier to distinguish the installation positions of the air circuit control mechanism 5 and the second telescopic mechanism 31 during installation, and also facilitates the positioning of the second telescopic mechanism body 31, thereby improving the stability and convenience of component installation.

[0066] Specifically, the pneumatic control mechanism 5 includes a first bracket 51, a solenoid valve 52, and a vacuum gauge 53. The first bracket 51 is mounted on the carrier plate 13; the solenoid valve 52 is mounted on the first bracket 51; and the vacuum gauge 53 is mounted on the first bracket 51. The solenoid valve 52, vacuum gauge 53, and pneumatic suction cup mechanism 4 are connected via pipelines. As described above, to enable the pneumatic control mechanism 5 to form an independent control unit and facilitate its installation on the carrier plate 13, a first bracket 51 is provided. After mounting the solenoid valve 52 and vacuum gauge 53 onto the first bracket 51, the first bracket 51 is then connected to the carrier plate 13, facilitating disassembly, assembly, and maintenance.

[0067] Specifically, the pneumatic suction cup mechanism 4 includes a second support 41, a pneumatic suction cup 42, and a vacuum generator 43. The second support 41 is mounted on the second movable end 32; the pneumatic suction cup 42 is mounted on the second support 41; and the vacuum generator 43 is mounted on the body 31 of the second telescopic mechanism, with the vacuum generator 43 connected to the pneumatic suction cup 42 via a pipeline. As described above, the pneumatic suction cup 42 works in conjunction with the vacuum generator 43. It also needs to be connected to the solenoid valve 52 and vacuum gauge 53 in the pneumatic control mechanism 5 to form a complete pneumatic system. Then, driven by the second telescopic mechanism 3, the pneumatic suction cup mechanism 4 can grip the bipolar plate blank 200 and edge waste materials via the pneumatic suction cup 42.

[0068] Furthermore, this tooling fixture also includes a connecting frame 6, which includes a connecting rod 61, a connecting plate 62, and a mounting base 63. The connecting rod 61 is located on the side of the carrier plate 13 away from the first movable end 12; the connecting plate 62 is located on the end of the connecting rod 61 away from the carrier plate 13; and the mounting base 63 is located on the side of the connecting plate 62 away from the connecting rod 61. As described above, the connecting frame 6 is designed to facilitate the connection of a drive device such as a robotic arm to move the entire tooling fixture, thus facilitating transfer between different production processes. The mounting base 63 is located away from the first movable end 12 and the second movable end 32. Connecting the robotic arm or other drive device via the mounting base 63 will not interfere with normal gripping and assembly operations, offering the advantage of a reasonable layout.

[0069] The application method of this bipolar plate fabrication tooling fixture includes the following steps:

[0070] S1. The second telescopic mechanism 3 drives the pneumatic suction cup mechanism 4 to extend and grab the bipolar plate blank 200 pressed inside the press.

[0071] S2. The pneumatic suction cup mechanism 4 puts the bipolar plate blank 200 into the cutting machine for cutting. After cutting, the pneumatic suction cup mechanism 4 grabs the bipolar plate blank 200 and the corner waste. After discarding the waste, the second telescopic mechanism 3 drives the pneumatic suction cup mechanism 4 to retract.

[0072] S3. The first telescopic mechanism 1 drives the gripper mechanism 2 to extend, the gripper mechanism 2 grabs a bipolar plate frame 100 and places it on the worktable, the second telescopic mechanism 3 drives the pneumatic suction cup mechanism 4 to extend, the pneumatic suction cup mechanism 4 places the bipolar plate blank 200 on the bipolar plate frame 100, and then the second telescopic mechanism 3 resets and retracts.

[0073] S4. The gripper mechanism 2 grabs the second bipolar plate frame 100 and places it on the bipolar plate blank 200. The two bipolar plate frames 100 are interlocked to clamp and fix the bipolar plate blank 200, forming the finished bipolar plate S.

[0074] S5. The gripper mechanism 2 picks up the assembled bipolar plate finished product S and puts it into the immersion tank for soaking. Then the first telescopic mechanism 1 resets and retracts. Repeat steps S1 to S5 for mass production.

[0075] S6. After the batch of products has been impregnated, the second telescopic mechanism 3 is in the reset and retracted state. The first telescopic mechanism 1 drives the gripper mechanism 2 to extend and remove the bipolar plate finished product S from the impregnation tank and place it to dry. Then the first telescopic mechanism 1 drives the gripper mechanism 2 to reset and retract.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for applying a tooling fixture for bipolar plate fabrication, characterized in that, Includes the following steps: S1. The second telescopic mechanism (3) drives the pneumatic suction cup mechanism (4) to extend and grab the bipolar plate blank (200) pressed in the press machine. S2. The pneumatic suction cup mechanism (4) puts the bipolar plate blank (200) into the cutting machine for cutting. After cutting, the pneumatic suction cup mechanism (4) grabs the bipolar plate blank (200) and the corner waste. After discarding the waste, the second telescopic mechanism (3) drives the pneumatic suction cup mechanism (4) to retract. S3. The first telescopic mechanism (1) drives the gripper mechanism (2) to extend, the gripper mechanism (2) grabs a bipolar plate frame (100) and places it on the worktable, the second telescopic mechanism (3) drives the pneumatic suction cup mechanism (4) to extend, the pneumatic suction cup mechanism (4) places the bipolar plate blank (200) on the bipolar plate frame (100), and then the second telescopic mechanism (3) resets and retracts. S4. The gripper mechanism (2) grabs the second bipolar plate frame (100) and places it on the bipolar plate blank (200). The two bipolar plate frames (100) snap together to hold and fix the bipolar plate blank (200) to form the finished bipolar plate (S). S5. The gripper mechanism (2) grabs the assembled bipolar plate finished product (S) and puts it into the immersion tank for soaking. Then the first telescopic mechanism (1) resets and retracts. Repeat steps S1 to S5 for mass production. S6. After the batch of products are immersed, the second telescopic mechanism (3) is in the reset and retracted state. The first telescopic mechanism (1) drives the gripper mechanism (2) to extend and take out the bipolar plate finished product (S) from the immersion tank and place it to dry. Then the first telescopic mechanism (1) drives the gripper mechanism (2) to reset and retract. The bipolar plate fabrication fixture includes a first telescopic mechanism (1), a gripper mechanism (2), a second telescopic mechanism (3), and a pneumatic suction cup mechanism (4), wherein, The first telescopic mechanism (1) includes a first telescopic mechanism body (11) and a first movable end (12), wherein the first movable end (12) can move linearly relative to the first telescopic mechanism body (11); A gripper mechanism (2) is provided on the first movable end (12). The gripper mechanism (2) is used to grip the bipolar plate frame (100) and the finished bipolar plate (S). The second telescopic mechanism (3) includes a second telescopic mechanism body (31) and a second movable end (32). The second telescopic mechanism body (31) is disposed on the first telescopic mechanism body (11), and the second movable end (32) can move linearly relative to the second telescopic mechanism body (31). A pneumatic suction cup mechanism (4) is set on the second movable end (32), and multiple second telescopic mechanisms (3) and pneumatic suction cup mechanisms (4) are arranged around the body of the first telescopic mechanism (11). The pneumatic suction cup mechanism (4) is used to grab bipolar plate blanks (200) and edge waste.

2. The application method of the bipolar plate fabrication fixture as described in claim 1, characterized in that: The first telescopic mechanism (1) further includes a carrier plate (13), which includes two large surfaces (1301) and multiple side surfaces (1302), wherein, The first telescopic mechanism body (11) is disposed on a large surface (1301), and the first movable end (12) penetrates the carrier plate (13); The second telescopic mechanism body (31) is disposed on the side (1302).

3. The application method of the bipolar plate fabrication fixture as described in claim 2, characterized in that: It also includes an air path control mechanism (5), which is disposed on the carrier plate (13) and is used for air path control of the pneumatic suction cup mechanism (4); The number of the side surfaces (1302) of the carrier plate (13) is even, and the air passage control mechanism (5) and the body of the second telescopic mechanism (31) are staggered on the side surfaces (1302).

4. The application method of the bipolar plate fabrication tooling fixture as described in claim 3, characterized in that: The gas path control mechanism (5) includes a first bracket (51), a solenoid valve (52), and a vacuum gauge (53), wherein, The first bracket (51) is disposed on the carrier plate (13); The solenoid valve (52) is mounted on the first bracket (51); The vacuum gauge (53) is mounted on the first bracket (51), and the solenoid valve (52), the vacuum gauge (53) and the pneumatic suction cup mechanism (4) are connected by pipelines.

5. The method of applying the bipolar plate fabrication tooling fixture as described in any one of claims 1 to 4, characterized in that: The pneumatic suction cup mechanism (4) includes a second bracket (41), a pneumatic suction cup (42), and a vacuum generator (43), wherein, The second bracket (41) is disposed on the second movable end (32); The pneumatic suction cup (42) is mounted on the second bracket (41); The vacuum generator (43) is mounted on the body (31) of the second telescopic mechanism, and the vacuum generator (43) is connected to the pneumatic suction cup (42) through a pipeline.

6. The method of applying the bipolar plate fabrication tooling fixture as described in any one of claims 1 to 4, characterized in that: The gripper mechanism (2) is a cylinder gripper, and there are two gripper mechanisms (2) arranged side by side.

7. The method of applying the bipolar plate fabrication tooling fixture as described in any one of claims 1 to 4, characterized in that: Both the first telescopic mechanism (1) and the second telescopic mechanism (3) are cylinders, and the first movable end (12) and the second movable end (32) are the piston rods of the cylinders.

8. The method of applying the bipolar plate fabrication tooling fixture as described in any one of claims 2 to 4, characterized in that: It also includes a connecting frame (6), which comprises a connecting rod (61), a connecting plate (62), and a mounting base (63), wherein, The connecting rod (61) is disposed on the side of the carrier plate (13) away from the first movable end (12); The connecting plate (62) is disposed on the end of the connecting rod (61) away from the carrier plate (13); The mounting base (63) is disposed on the side of the connecting plate (62) away from the connecting rod (61).

9. The method of applying the bipolar plate fabrication fixture as described in any one of claims 2 to 4, characterized in that: The carrier plate (13) has a groove (1303) on its side (1302) corresponding to the second telescopic mechanism body (31).

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