Clamp for sealing bipolar plate of fuel cell

Abstract

The utility model discloses a fuel cell bipolar plate sealing clamp which comprises a carrier, a clamp body and a rotating assembly, the clamp body is arranged on the carrier, the clamp body comprises a bearing surface, and a plurality of adsorption holes penetrating through the bearing surface are formed in the clamp body; the rotating assembly comprises a first rotating part, a second rotating part, a first driving part and a second driving part, the first rotating part and the second rotating part are arranged at the two opposite ends of the clamp body respectively and can rotate relative to the clamp body respectively, and the first rotating part, the bearing surface and the second rotating part are used for jointly bearing a bipolar plate; the first rotating part is in transmission connection with the first driving part, the second rotating part is in transmission connection with the second driving part, and the first rotating part and the second rotating part can rotate under the driving of the corresponding driving parts so as to jointly drive the bipolar plate to move. According to the technical scheme, the processing efficiency of adhesive dispensing sealing of the bipolar plate can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell bipolar plate processing, in particular to a clamp for sealing a fuel cell bipolar plate. Background Art

[0002] The bipolar plate, also known as the current collecting plate, is one of the important components of a fuel cell. It can provide a gas flow channel to prevent the hydrogen and oxygen in the battery gas chamber from communicating with each other and establish a current path between the positive and negative poles connected in series.

[0003] During the preparation of bipolar plates for fuel cells, the bipolar plates need to undergo a glue dispensing operation to form seals for sealing wire grooves. Currently, during the glue dispensing process, the bipolar plates to be glued need to be transported by a conveyor belt first. After being transported to a specific location, the bipolar plates on the conveyor belt are moved to the glue dispensing station by a robot. After the bipolar plates are glued, the robot moves the bipolar plates at the glue dispensing station out. The process is cumbersome and is not conducive to improving processing efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a clamp for sealing a bipolar plate of a fuel cell, aiming to solve the technical problem of low efficiency of the glue dispensing sealing process of the bipolar plate in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides a fuel cell bipolar plate sealing fixture, including a carrier, a fixture body and a rotating assembly, the fixture body is arranged on the carrier, the fixture body includes a bearing surface, and the fixture body is provided with a plurality of adsorption holes penetrating the bearing surface; the rotating assembly includes a first rotating member, a second rotating member, a first driving member and a second driving member, the first rotating member and the second rotating member are respectively arranged at opposite ends of the fixture body, the first rotating member and the second rotating member can rotate relative to the fixture body respectively, the first rotating member, the bearing surface and the second rotating member are used to jointly support a bipolar plate, the first rotating member is transmission-connected to the first driving member, the second rotating member is transmission-connected to the second driving member, the first rotating member and the second rotating member can both rotate under the drive of the corresponding driving member to jointly drive the bipolar plate to move.

[0006] In a possible implementation manner, the number of the first rotating members is at least two, at least two of the first rotating members are disposed at the same end of the clamp body, and all of the first rotating members are disposed in parallel, and each of the first rotating members is transmission-connected to the first driving member.

[0007] In a possible implementation, the first driving member includes a first motor;

[0008] Each of the first rotating members includes a first mounting end and a first transmission end that are relatively arranged. Each of the first mounting ends can be rotatably disposed on the clamp body. Each of the first transmission ends is connected to a first pulley. The output shaft of the first motor is provided with a first motor pulley. The first motor pulley is transmission-connected to all of the first pulleys via a first belt.

[0009] In a possible implementation manner, the number of the second rotating members is at least two, at least two of the second rotating members are disposed at the same end of the clamp body, and all of the second rotating members are disposed in parallel, and each of the second rotating members is transmission-connected to the second driving member.

[0010] In a possible implementation, the second driving member includes a second motor;

[0011] Each of the second rotating members includes a second mounting end and a second transmission end that are relatively arranged. Each of the second mounting ends can be rotatably disposed on the clamp body. Each of the second transmission ends is connected to a second pulley. The output shaft of the second motor is provided with a second motor pulley. The second motor pulley is transmission-connected to all the second pulleys via a second belt.

[0012] In a possible embodiment, a first avoidance groove is provided at the first end of the clamp body, and a first avoidance opening is formed on the bearing surface. The first rotating member is rotatably arranged in the first avoidance groove, and the axial direction of the first rotating member is the same as the groove depth direction of the first avoidance groove. The first rotating member contacts the bipolar plate through the first avoidance opening.

[0013] In a possible embodiment, a second avoidance groove is provided at the second end of the clamp body, and a second avoidance opening is formed on the bearing surface. The second rotating member is rotatably arranged in the second avoidance groove, and the axial direction of the second rotating member is the same as the groove depth direction of the second avoidance groove. The second rotating member contacts the bipolar plate through the second avoidance opening.

[0014] In a possible implementation manner, the carrier includes a driving cylinder, a piston rod of the driving cylinder is connected to the clamp body, and the piston rod is perpendicular to the bearing surface.

[0015] The fuel cell bipolar plate sealing fixture of the utility model technical solution can be arranged between two conveyor belts. When one conveyor belt transports the un-glued bipolar plate to the fixture body, the negative pressure at the adsorption holes on the fixture body can fix the bipolar plate, and then the glue dispensing head can directly dispense glue to the bipolar plate above the fixture body. After the gluing is completed, the rotation of the first rotating part and the second rotating part at both ends of the fixture body can drive the glued bipolar plate to move to another conveyor belt, and then transport it to other workstations. Compared with the prior art that requires a robot to move the bipolar plate from the conveyor belt to the glue dispensing station for gluing, and then move the glued bipolar plate back to the conveyor belt by the robot, the design of the present application eliminates the step of robot transportation, which is beneficial to shorten the time required for processing the bipolar plate and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a clamp for sealing a bipolar plate of a fuel cell according to the utility model;

[0018] Figure 2 Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 for Figure 1 A structural diagram from another perspective;

[0020] Figure 4 Figure 3 A partial enlarged view of point B in the middle.

[0021] Description of Figure Numbers:

[0022] 1. Carrier; 11. Driving cylinder; 111. Piston rod; 2. Fixture body; 21. Bearing surface; 22. Adsorption hole; 23. First avoidance groove; 24. First avoidance port; 25. Second avoidance groove; 26. Second avoidance port; 3. Rotating assembly; 31. First rotating member; 311. First mounting end; 312. First transmission end; 32. Second rotating member; 321. Second mounting end; 322. Second transmission end; 33. First driving member; 331. First motor; 332. First pulley; 333. First motor pulley; 334. First belt; 34. Second driving member; 341. Second motor; 342. Second pulley; 343. Second motor pulley; 344. Second belt; 100. Dispensing head; 200. Conveyor belt; 300. Bipolar plate.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, which must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] The utility model provides a clamp for sealing a bipolar plate of a fuel cell.

[0028] In the embodiment of the present utility model, Figures 1 to 4 As shown, the fuel cell bipolar plate sealing fixture includes a carrier 1, a fixture body 2 and a rotating assembly 3, the fixture body 2 is arranged on the carrier 1, the fixture body 2 includes a bearing surface 21, and the fixture body 2 is provided with a plurality of adsorption holes 22 penetrating the bearing surface 21; the rotating assembly 3 includes a first rotating member 31, a second rotating member 32, a first driving member 33 and a second driving member 34, the first rotating member 31 and the second rotating member 32 are respectively arranged at opposite ends of the fixture body 2, the first rotating member 31 and the second rotating member 32 can rotate relative to the fixture body 2 respectively, the first rotating member 31, the bearing surface 21 and the second rotating member 32 are used to jointly support a bipolar plate 300, the first rotating member 31 is transmission-connected to the first driving member 33, the second rotating member 32 is transmission-connected to the second driving member 34, the first rotating member 31 and the second rotating member 32 can both rotate under the drive of the corresponding driving member to jointly drive the bipolar plate 300 to move.

[0029] See also Figure 1 A tube body can be set at the bottom of the clamp body 2 to connect the adsorption hole 22 to a negative pressure generating device (such as a vacuum pump, a vortex pump, a liquid ring vacuum pump, etc.). When the bipolar plate 300 is placed on the top of the clamp body 2, the negative pressure generating device is operated and an adsorption force is generated at the adsorption hole 22, so that the bipolar plate 300 can stay on the clamp body 2.

[0030] In specific implementation, the first rotating member 31 and the second rotating member 32 can be rollers or wheels, etc., and no specific restrictions are made herein. The first driving member 33 and the second driving member 34 can be power members such as motors, cylinders or hydraulic cylinders. If cylinders, hydraulic cylinders, etc. are used as power members, a transmission member that can convert linear reciprocating motion into rotational motion, such as a crank slider, etc., can be provided between the power member and the first rotating member 31 or the second rotating member 32, so as to convert the linear reciprocating motion of the cylinder or hydraulic cylinder into rotational motion of the first rotating member 31 or the second rotating member 32.

[0031] When used specifically, the fuel cell bipolar plate sealing fixture is placed between two conveying mechanisms for transporting bipolar plates 300. For example, the conveying mechanism is a conveyor belt 200. Figure 1The fixture body 2 is arranged between the two conveyor belts 200, and the bearing surface 21 of the fixture body 2 is flush with the surface of the conveyor belt 200, or the bearing surface 21 of the fixture body 2 can also be made lower than the surface of the conveyor belt 200. During the process of the conveyor belt 200 on the left side transporting the bipolar plate 300, the bipolar plate 300 will finally move to the fixture body 2. At this time, the negative pressure generating device is started to generate negative pressure at the adsorption hole 22, and the bipolar plate 300 is adsorbed on the fixture body 2. Then, the dispensing head 100 located above the fixture body 2 starts to dispense glue to the bipolar plate 300 on the fixture body 2. After the dispensing is completed, the negative pressure generating device is turned off, and the first driving member 33 and the second driving member 34 are started, so that the first rotating member 31 and the second rotating member 32 rotate clockwise, driving the bipolar plate 300 that has been dispensed on the fixture body 2 to move to the conveyor belt 200 on the right.

[0032] It is not difficult to understand that the fuel cell bipolar plate sealing fixture of the technical solution of the utility model can be arranged between two conveyor belts 200. When one conveyor belt 200 transports the un-glued bipolar plate 300 to the fixture body 2, the negative pressure at the adsorption hole 22 on the fixture body 2 can fix the bipolar plate 300, and then the glue dispensing head 100 can directly dispense glue to the bipolar plate 300 above the fixture body 2. After the glue dispensing is completed, the first rotating member 31 and the second rotating member 32 at both ends of the fixture body 2 are used to fix the bipolar plate 300. The rotation of the two rotating parts 32 can drive the bipolar plate 300 that has been glued to move to another conveyor belt 200, and then transport it to other workstations. Compared with the prior art that requires a robot to move the bipolar plate 300 from the conveyor belt 200 to the glue dispensing station for glue dispensing, and then use a robot to move the bipolar plate 300 after glue dispensing back to the conveyor belt 200, the design of the present application eliminates the step of robot transportation, which is beneficial to shorten the time required for processing the bipolar plate 300 and improve processing efficiency.

[0033] There are at least two first rotating members 31 . At least two first rotating members 31 are disposed at the same end of the clamp body 2 . All first rotating members 31 are disposed in parallel. Each first rotating member 31 is in transmission connection with the first driving member 33 .

[0034] It is not difficult to understand that the rotating axes of these first rotating members 31 are all located at the same height, each first rotating member 31 can contact the bipolar plate 300 on the clamp body 2, and multiple first rotating members 31 can evenly share the pressure of the bipolar plate 300, reducing the risk of a single first rotating member 31 being subjected to excessive pressure. When multiple first rotating members 31 rotate together, the bipolar plate 300 can be driven to move at multiple positions at the bottom of the bipolar plate 300, ensuring that the bipolar plate 300 can be driven to move and finally move to the conveyor belt 200.

[0035] The first driving member 33 and the multiple first rotating members 31 can be transmitted through a gear set or through a belt or a pulley. The present application prefers the latter transmission method because belt transmission can provide a certain degree of buffering and shock absorption effects, which can reduce the impact and vibration during the transmission process, reduce noise and mechanical wear, and improve the stability and comfort of the entire system.

[0036] Specifically, see Figure 2 The first driving member 33 includes a first motor 331; each first rotating member 31 includes a first mounting end 311 and a first transmission end 312 arranged opposite to each other, each first mounting end 311 can be rotatably provided on the clamp body 2, each first transmission end 312 is connected to a first pulley 332, and the output shaft of the first motor 331 is provided with a first motor pulley 333, and the first motor pulley 333 is transmission-connected to all the first pulleys 332 through a first belt 334.

[0037] There are at least two second rotating members 32 . At least two second rotating members 32 are disposed at the same end of the clamp body 2 . All second rotating members 32 are disposed in parallel. Each second rotating member 32 is in transmission connection with the second driving member 34 .

[0038] Similarly, the rotating axes of these second rotating members 32 are all located at the same height, and each second rotating member 32 can contact the bipolar plate 300 on the clamp body 2. The multiple second rotating members 32 can evenly share the pressure of the bipolar plate 300, reducing the risk of a single second rotating member 32 being subjected to excessive pressure. When the multiple second rotating members 32 rotate together, the bipolar plate 300 can be driven to move at multiple positions at the bottom of the bipolar plate 300, ensuring that the bipolar plate 300 can be driven to move and finally move to the conveyor belt 200.

[0039] Correspondingly, the second driving member 34 and the multiple second rotating members 32 can be transmitted through a gear set or through a belt or a pulley. The present application prefers the latter transmission method because belt transmission can provide a certain degree of buffering and shock absorption effect, which can reduce the impact and vibration during the transmission process, reduce noise and mechanical wear, and improve the stability and comfort of the entire system.

[0040] Specifically, see Figure 4The second driving member 34 includes a second motor 341; each second rotating member 32 includes a second mounting end 321 and a second transmission end 322 which are arranged opposite to each other, each second mounting end 321 can be rotatably arranged on the clamp body 2, each second transmission end 322 is connected to a second pulley 342, and the output shaft of the second motor 341 is provided with a second motor pulley 343, and the second motor pulley 343 is transmission-connected to all the second pulleys 342 through a second belt 344.

[0041] A first avoidance groove 23 is provided at the first end of the clamp body 2, and a first avoidance opening 24 is formed on the bearing surface 21 of the first avoidance groove 23. The first rotating member 31 is rotatably provided in the first avoidance groove 23, and the axial direction of the first rotating member 31 is the same as the groove depth direction of the first avoidance groove 23. The first rotating member 31 contacts the bipolar plate 300 through the first avoidance opening 24.

[0042] It is not difficult to understand that, compared with the method of directly installing the first rotating member 31 on the end of the clamp body 2, a first avoidance groove 23 is set at the end of the clamp body 2 for the installation of the first rotating member 31. This method can effectively shorten the interval between the first rotating member 31 and the second rotating member 32, and avoid the interval between the two being too long, which leads to the inability to effectively contact the bipolar plate 300 and drive the bipolar plate 300 to move.

[0043] In order to further shorten the interval between the first rotating member 31 and the second rotating member 32, further, a second avoidance groove 25 is provided at the second end of the clamp body 2, and the second avoidance groove 25 is formed with a second avoidance opening 26 on the bearing surface 21. The second rotating member 32 is rotatably arranged in the second avoidance groove 25, and the axial direction of the second rotating member 32 is the same as the groove depth direction of the second avoidance groove 25. The second rotating member 32 contacts the bipolar plate 300 through the second avoidance opening 26.

[0044] In a specific implementation, in order to reduce the friction between the clamp body 2 and the first rotating member 31 and the second rotating member 32 , a bearing may be provided between the first rotating member 31 and the clamp body 2 , and a bearing may also be provided between the second rotating member 32 and the clamp body 2 .

[0045] The carrier 1 includes a driving cylinder 11, a piston rod 111 of the driving cylinder 11 is connected to the fixture body 2, and the piston rod 111 is perpendicular to the bearing surface 21. The driving cylinder 11 is provided to adjust the setting height of the fixture body 2. Before the dispensing head 100 performs dispensing, the driving cylinder 11 can drive the fixture body 2 to move in the vertical direction to move to a suitable height for processing by the dispensing head 100. At the same time, the driving cylinder 11 adjusts the height of the fixture body 2, which is also convenient for it to adapt to conveyor belts 200 of different heights and to cooperate with conveyor belts 200 of different heights.

[0046] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fuel cell bipolar plate sealing fixture, characterized in that: include: Carrier (1); A clamp body (2) is arranged on the carrier (1), the clamp body (2) comprises a bearing surface (21), and the clamp body (2) is provided with a plurality of adsorption holes (22) penetrating the bearing surface (21); and The rotating assembly (3) comprises a first rotating member (31), a second rotating member (32), a first driving member (33) and a second driving member (34); the first rotating member (31) and the second rotating member (32) are respectively arranged at two opposite ends of the clamp body (2); the first rotating member (31) and the second rotating member (32) can rotate relative to the clamp body (2); the first rotating member (31), the bearing surface (21) and the second rotating member (32) are used to jointly support a bipolar plate (300); the first rotating member (31) is transmission-connected to the first driving member (33); the second rotating member (32) is transmission-connected to the second driving member (34); the first rotating member (31) and the second rotating member (32) can both rotate under the drive of the corresponding driving member to jointly drive the bipolar plate (300) to move.

2. The fuel cell bipolar plate sealing fixture according to claim 1, characterized in that: The number of the first rotating members (31) is at least two, at least two of the first rotating members (31) are arranged at the same end of the clamp body (2), and all of the first rotating members (31) are arranged in parallel, and each of the first rotating members (31) is transmission-connected to the first driving member (33).

3. The fuel cell bipolar plate sealing fixture according to claim 2, characterized in that: The first driving member (33) comprises a first motor (331); Each of the first rotating members (31) comprises a first mounting end (311) and a first transmission end (312) which are arranged opposite to each other. Each of the first mounting ends (311) can be rotatably arranged on the clamp body (2). Each of the first transmission ends (312) is connected to a first pulley (332). The output shaft of the first motor (331) is provided with a first motor pulley (333). The first motor pulley (333) is transmission-connected to all of the first pulleys (332) via a first belt (334).

4. The fuel cell bipolar plate sealing fixture according to claim 1, characterized in that: The number of the second rotating members (32) is at least two, at least two of the second rotating members (32) are arranged at the same end of the clamp body (2), and all of the second rotating members (32) are arranged in parallel, and each of the second rotating members (32) is transmission-connected to the second driving member (34).

5. The fuel cell bipolar plate sealing fixture according to claim 4, characterized in that: The second driving member (34) comprises a second motor (341); Each of the second rotating members (32) comprises a second mounting end (321) and a second transmission end (322) which are arranged opposite to each other. Each of the second mounting ends (321) can be rotatably arranged on the clamp body (2). Each of the second transmission ends (322) is connected to a second pulley (342). The output shaft of the second motor (341) is provided with a second motor pulley (343). The second motor pulley (343) is transmission-connected to all the second pulleys (342) via a second belt (344).

6. The fuel cell bipolar plate sealing fixture according to claim 1, characterized in that: A first avoidance groove (23) is provided at the first end of the clamp body (2), and a first avoidance opening (24) is formed on the bearing surface (21) of the first avoidance groove (23). The first rotating member (31) is rotatably arranged in the first avoidance groove (23), and the axial direction of the first rotating member (31) is the same as the groove depth direction of the first avoidance groove (23). The first rotating member (31) contacts the bipolar plate (300) through the first avoidance opening (24).

7. The fuel cell bipolar plate sealing fixture according to claim 1, characterized in that: A second avoidance groove (25) is provided at the second end of the clamp body (2), and a second avoidance opening (26) is formed in the second avoidance groove (25) on the bearing surface (21); the second rotating member (32) is rotatably arranged in the second avoidance groove (25); the axial direction of the second rotating member (32) is the same as the groove depth direction of the second avoidance groove (25); and the second rotating member (32) contacts the bipolar plate (300) through the second avoidance opening (26).

8. The fuel cell bipolar plate sealing fixture according to claim 1, characterized in that: The carrier (1) comprises a driving cylinder (11), a piston rod (111) of the driving cylinder (11) is connected to the clamp body (2), and the piston rod (111) is perpendicular to the bearing surface (21).

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