Dispensing and laminating device for hydrogen fuel cell polar plate

Abstract

The utility model relates to the field of hydrogen fuel cell polar plate processing, and discloses a hydrogen fuel cell polar plate dispensing and laminating device which comprises a dispensing machine body and an objective table mounted on the dispensing machine body in a sliding manner, the polar plate clamping device is used for processing and limiting a battery polar plate, the main limiting air cylinder is used for controlling the polar plate clamping device to horizontally move in the objective table, the membrane electrode clamping devices are distributed above and below the polar plate clamping device and are used for processing and limiting a membrane electrode, and the main limiting air cylinder is rotationally mounted on the objective table and can drive the polar plate clamping device to rotate; when the polar plate dispensing and laminating device is used, the processing surfaces of the bipolar plate can be rotationally switched, and a membrane electrode is guided to accurately move, so that the processing efficiency and the process quality of a battery polar plate are improved.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen fuel cell polar plate processing, in particular to a hydrogen fuel cell polar plate dispensing and bonding device. Background Art

[0002] The airtightness of the production and processing of hydrogen fuel cell plates directly affects the service life of the battery. Hydrogen fuel cell plates are generally bipolar plates, and the membrane electrode is glued and fixed on both sides. During production, the surface of the hydrogen fuel cell plate is first glued, and then the membrane electrode and the battery plate are combined with each other. However, due to the small size of the battery plate, the position is easily displaced by the thrust of the glue tool during the glue dispensing process.

[0003] To this end, the fuel cell plate production dispensing device with patent application number CN212189827U includes a frame, a moving mechanism, a dispensing mechanism, a control box, and a loading mechanism, wherein the loading mechanism includes a main fixed block, a mounting table, a slider, a first connecting plate, a pneumatic rod, a clamping block, a T-block, an L-shaped fixing frame, and a fixing plate. The structural design of the mounting table of the utility model is beneficial to the installation of various styles of fuel cell plates. The setting of the slider and the T-block is beneficial to ensure that the clamping block can clamp the fuel cell plate. The loading mechanism is provided with 4 groups to ensure that the dispensing is not affected during the material replacement process. The overall structure is suitable for the dispensing of various styles of fuel cell plates and improves the dispensing efficiency.

[0004] However, for the bipolar plates of hydrogen fuel cells, after the glue dispensing and membrane electrode bonding are completed on one side, the bipolar plates of the battery need to be adjusted to the other side, and the clamping, limiting, glue dispensing and bonding operations of the plates need to be completed in sequence. The production process is cumbersome, and the glue dispensing and bonding operations on the upper and lower sides of the bipolar plates cannot be completed through a one-time clamping and limiting operation. In addition, in the process of controlling the movement and bonding between the plate and the membrane electrode, the plate and the membrane electrode need to be precisely controlled and matched. The position deviation between the two affects the stability and life of the battery. Utility Model Content

[0005] In view of the above problems, a hydrogen fuel cell plate dispensing and bonding device is provided. By rotating the battery bipolar plate to switch the processing surfaces on the upper and lower sides, the problem that the bipolar plate of the hydrogen fuel cell cannot be completed by a one-time clamping limit to complete the dispensing and bonding operations on the upper and lower sides of the bipolar plate is solved.

[0006] In order to solve the problems of the prior art, the utility model provides a hydrogen fuel cell plate dispensing and bonding device, comprising a dispensing machine body and a loading table slidably mounted on the dispensing machine body, the plate dispensing and bonding device also includes a plate clamp for limiting the processing of the battery plate, a main limit cylinder for controlling the horizontal movement of the plate clamp in the loading table, and membrane electrode clamps distributed above and below the plate clamp for limiting the processing of the membrane electrode, the main limit cylinder is rotatably mounted on the loading table and can drive the plate clamp to rotate to switch the processing surface of the clamped bipolar plate.

[0007] Preferably, a guide frame is rotatably mounted on the electrode holder, a slide frame is slidably mounted through the guide frame, a secondary limit cylinder is mounted on the slide frame, and the telescopic end of the secondary limit cylinder is fixedly assembled with the membrane electrode holder.

[0008] Preferably, a slide bar is fixedly mounted on the guide frame, a slide groove is provided on the loading platform, and the slide bar is slidably engaged in the slide groove.

[0009] Preferably, a rack is fixed in the sliding frame, a gear is meshed with the rack, the gear is rotatably mounted on the guide frame, a servo motor is fixed on the guide frame, and the output end of the servo motor is fixedly assembled with the gear.

[0010] Preferably, a driving motor is fixed on the loading platform, and an output end of the driving motor is fixedly assembled with the main limit cylinder.

[0011] Preferably, the membrane electrode holder is spaced the same distance from the electrode plate holder.

[0012] Preferably, the membrane electrode holder is provided with a limiting groove for limiting the membrane electrode processing position.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a hydrogen fuel cell double-electrode clamping and rotating structure, which places the double electrodes between the left and right sets of plate clamps, and clamps and limits the double electrodes through the two sets of plate clamps. The driving motor is operated to control the rotation of the clamped double electrodes, and the corresponding positions of the upper and lower surfaces of the double electrodes and the glue dispensing structure are matched, so as to continuously perform glue dispensing on the upper and lower surfaces of the double electrodes of the battery, and then the upper and lower sets of clamped membrane electrodes are controlled to move and fit with the double electrodes, thereby simplifying the production process.

[0015] 2. The utility model is provided with a membrane electrode movement guide structure, which clamps the membrane electrode in the membrane electrode clamp, and controls the upper and lower groups of membrane electrodes to move synchronously toward the upper and lower surfaces of the double electrodes through the transmission structure, so that the electrodes can be quickly fitted together. During the movement of the membrane electrode, the sliding frame slides vertically through the guide frame, and the movement of the membrane electrode can be guided by the sliding structure, so that the membrane electrode and the double electrodes can be moved and fitted more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a dispensing machine body of a hydrogen fuel cell plate dispensing and bonding device.

[0017] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a loading platform of a hydrogen fuel cell plate dispensing and bonding device.

[0018] Figure 3 The present invention is a schematic diagram of the cross-sectional structure of a slideway of a hydrogen fuel cell plate dispensing and bonding device.

[0019] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a sliding frame of a hydrogen fuel cell plate dispensing and bonding device.

[0020] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of the gears of a hydrogen fuel cell plate dispensing and bonding device.

[0021] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of a rack of a hydrogen fuel cell plate dispensing and bonding device.

[0022] Figure 7 The present invention is a schematic diagram of the three-dimensional structure of a membrane electrode holder of a hydrogen fuel cell plate dispensing and bonding device.

[0023] The numbers in the figure are:

[0024] 1. Dispensing machine body; 2. Loading table; 3. Plate clamp; 31. Main limit cylinder; 32. Driving motor; 4. Membrane electrode clamp; 41. Auxiliary limit cylinder; 42. Limit groove; 5. Guide frame; 51. Sliding frame; 52. Sliding rod; 53. Sliding groove; 54. Rack; 55. Gear; 56. Servo motor. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See also Figure 1-Figure 7As shown, a hydrogen fuel cell plate dispensing and bonding device includes a dispensing machine body 1 and a stage 2 slidably mounted on the dispensing machine body 1. The plate dispensing and bonding device also includes a plate clamp 3 for limiting the processing of the battery plate, a main limit cylinder 31 for controlling the horizontal movement of the plate clamp 3 in the stage 2, and membrane electrode clamps 4 distributed above and below the plate clamp 3 for limiting the processing of the membrane electrode. The main limit cylinder 31 is rotatably mounted on the stage 2 and can drive the plate clamp 3 to rotate to switch the processing surface of the clamped bipolar plate. The plate clamp 3 is parallelly provided with two left and right The plane, the clamping plane on one side and the plane close to the guide frame 5 on the other side are connected to each other by an inclined surface, and an angle is formed between the inclined surface and the clamping surface, which can withstand a large load force and effectively clamp and limit the double electrodes of the battery. The membrane electrode clamp 4 is connected to the telescopic end of the auxiliary limit cylinder 41 through a plane, and the front and rear sides of the plane connected to the telescopic end of the auxiliary limit cylinder 41 are two groups of inclined clamping structures. The inclined clamp determines the fixing force of the membrane electrode through the inclination angle of the slope, and can achieve effective clamping and fixation of the membrane electrode based on the principles of slope mechanics and friction mechanics.

[0027] The bipolar plates of the hydrogen fuel cell are correspondingly arranged between the left and right groups of plate clamps 3, and the main limit cylinders 31 on both sides are operated to push the plate clamps 3 to move horizontally, so that the movement of the plate clamps 3 is limited to the left and right sides of the bipolar plate, and the bipolar plate is quickly clamped and limited in the dispensing machine body 1, and the position of the dispensing tube on the dispensing machine body 1 and the position of the stage 2 are adjusted to complete the dispensing process on one side of the bipolar plate. Then, the driving motor 32 is operated to control the rotation of the plate clamp 3 on the left side, control the rotation of the clamped bipolar plate, switch the corresponding positions of the upper and lower surfaces, and quickly dispense glue on the other side of the bipolar plate through the dispensing tube. After dispensing, the membrane electrode is bonded to the upper and lower ends of the bipolar plate to synchronously complete the bonding process.

[0028] A guide frame 5 is rotatably mounted on the electrode plate holder 3, a slide frame 51 is slidably mounted through the guide frame 5, an auxiliary limit cylinder 41 is mounted on the slide frame 51, and the telescopic end of the auxiliary limit cylinder 41 is fixedly assembled with the membrane electrode holder 4. There are two groups of front and rear rods in the slide frame 51 that penetrate the guide frame 5 and slide and move, and the sliding structure is stable.

[0029] Place the membrane electrode correspondingly between the membrane electrode clamps 4 on the left and right sides, operate the auxiliary limit cylinder 41 to push the membrane electrode clamp 4 to move horizontally, so that the two groups of membrane electrode clamps 4 can quickly clamp the membrane electrode and limit it in the dispensing machine body 1, and control the slide frame 51 to slide longitudinally in the guide frame 5 through the driving structure. The sliding structure of the guide frame 5 and the slide frame 51 can guide the movement of the membrane electrode, so that the upper and lower groups of membrane electrodes can be accurately moved to fit the double electrode surface, and the membrane electrode and the bipolar plate can be quickly fitted together by moving pressure.

[0030] The guide frame 5 is fixedly mounted with a slide bar 52, and the stage 2 is provided with a slide groove 53. The slide bar 52 is slidably engaged in the slide groove 53, and the slide bar 52 is engaged in the slide groove 53 in the front-back direction below, so as to limit the height and angle of the guide frame 5 in the stage 2. The guide frame 5 is rotatably mounted between the plate holder 3. When the plate holder 3 is driven to rotate by power, the guide frame 5 does not follow the plate holder 3 under the vertical limitation of the slide bar 52 engaged below. Rotate, its horizontal position corresponds to the position just above the stage 2, and the guide frame 5 is connected with the membrane electrode clamp 4 through the sliding frame 51 connected therethrough. Under the vertical guiding action of the guide frame 5, the upper and lower groups of membrane electrode clamps 4 can always be kept in a horizontal state corresponding to the stage 2 without being disturbed by the rotation of the electrode plate clamp 3, thereby assisting in realizing the rotation of the double electrodes clamped in the electrode plate clamp 3 to switch the glue dispensing surface, and the upper and lower surfaces are synchronously and quickly bonded with the upper and lower groups of membrane electrodes.

[0031] The guide frame 5 is rotatably installed with the plate clamp 3. When the plate clamp 3 is controlled to rotate, the lower part of the guide frame 5 is engaged in the slide groove 53 through the slide rod 52. Under the limiting action of the engaging structure, the guide frame 5 can be kept in a vertical state at all times, thereby avoiding the interference of the plate clamp 3 with the membrane electrode clamp 4 during rotation, so as to combine the dispensing and bonding processes of the battery plate with each other. At the same time, when the main limit cylinder 31 is operated to push the plate clamp 3 to move horizontally, the plate clamp 3 drives the guide frame 5 to move horizontally synchronously. The lower part of the guide frame 5 slides along the direction of the slide groove 53 through the slide rod 52, and the membrane electrode clamp 4 and its driving components above and below the guide frame 5 move synchronously, so as to keep the positions of the membrane electrode clamp 4 and the plate clamp 3 always corresponding to each other.

[0032] A rack 54 is fixed in the slide frame 51, and the rack 54 is meshed with a gear 55. The gear 55 is rotatably installed on the guide frame 5. A servo motor 56 is fixed on the guide frame 5, and the output end of the servo motor 56 is fixedly assembled with the gear 55. The upper and lower groups of slide frames 51 penetrate the guide frame 5 and are staggered left and right. The racks 54 fixed on the two groups of slide frames 51 are respectively meshed with the left and right sides of the gear 55. The gear 55 rotates and drives the rack 54 to move through the meshing cooperation, which can drive the slide frame 51 fixed with the rack 54 to move, thereby adjusting the distance between the plate clamp 3 and the membrane electrode clamp 4, so that the battery bipolar plate and the membrane electrode can move and fit.

[0033] The servo motor 56 is operated to control the rotation of the gear 55. The two sides of the gear 55 are respectively meshed with the two groups of racks 54. Under the action of the meshing transmission structure, the two groups of slide frames 51 pass through the guide frame 5 and move in opposite directions. The upper slide frame 51 controls the membrane electrode clamp 4 to move downward, and the lower slide frame 51 controls the membrane electrode clamp 4 to move upward. The movement displacement of the two groups of membrane electrode clamps 4 is the same, so that the upper and lower groups of clamped and limited membrane electrodes move synchronously and fit to the battery double electrode surface, keeping the fitting force between the dual motors and the upper and lower groups of membrane electrodes uniform.

[0034] A driving motor 32 is fixed on the loading platform 2 , and an output end of the driving motor 32 is fixedly assembled with the main limit cylinder 31 .

[0035] The driving motor 32 controls the rotation of the main limit cylinder 31 on the left side of the stage 2, and the main limit cylinders 31 on the left and right sides push the plate clamp 3 to clamp and limit it on the side of the bipolar plate. Through the clamping structure, the main limit cylinders 31 on the left and right sides can be synchronously controlled to rotate.

[0036] The upper and lower groups of membrane electrode holders 4 are at the same distance from the electrode plate holder 3 .

[0037] The upper and lower groups of membrane electrode clamps 4 are controlled by the driving structure to move in opposite directions, so that the upper and lower groups of clamped membrane electrodes move synchronously toward the upper and lower surfaces of the double electrodes, and the battery electrode bonding process is completed quickly and accurately.

[0038] The membrane electrode holder 4 is provided with a limiting groove 42 for limiting the processing position of the membrane electrode. The limiting groove 42 is provided on the side of the membrane electrode holder 4 close to the electrode plate holder 3. When the membrane electrode is kept in contact with the double electrode surface, the electrode plate holder 3 and the membrane electrode holder 4 do not interfere with each other.

[0039] The thickness of the membrane electrode is relatively small. When the membrane electrode is controlled by a loading mechanism such as a robot to correspond to the middle position of the membrane electrode clamp 4 on the left and right sides, the membrane electrode is placed in the limiting groove 42 opened on the surface of the membrane electrode clamp 4, which can quickly and accurately limit the membrane electrode on the dispensing machine body 1, thereby improving the accuracy of the battery production process.

[0040] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A hydrogen fuel cell plate dispensing and bonding device, comprising a dispensing machine body (1) and a loading platform (2) slidably mounted on the dispensing machine body (1), characterized in that: The electrode plate glue dispensing and bonding device also includes an electrode plate clamp (3) for limiting the processing of the battery electrode plate, a main limiting cylinder (31) for controlling the horizontal movement of the electrode plate clamp (3) in the stage (2), and membrane electrode clamps (4) distributed above and below the electrode plate clamp (3) for limiting the processing of the membrane electrode. The main limiting cylinder (31) is rotatably mounted on the stage (2) and can drive the electrode plate clamp (3) to rotate so as to switch the processing surface of the clamped bipolar plate.

2. A hydrogen fuel cell plate dispensing and bonding device according to claim 1, characterized in that: A guide frame (5) is rotatably mounted on the electrode plate holder (3), a slide frame (51) is slidably mounted through the guide frame (5), a secondary limit cylinder (41) is mounted on the slide frame (51), and a telescopic end of the secondary limit cylinder (41) is fixedly assembled with the membrane electrode holder (4).

3. A hydrogen fuel cell plate dispensing and bonding device according to claim 2, characterized in that: A slide bar (52) is fixedly mounted on the guide frame (5), a slide groove (53) is provided on the loading platform (2), and the slide bar (52) is slidably engaged in the slide groove (53).

4. A hydrogen fuel cell plate dispensing and bonding device according to claim 2, characterized in that: A rack (54) is fixed in the sliding frame (51), and a gear (55) is meshed with the rack (54). The gear (55) is rotatably mounted on the guide frame (5). A servo motor (56) is fixed on the guide frame (5), and the output end of the servo motor (56) is fixedly assembled with the gear (55).

5. A hydrogen fuel cell plate dispensing and bonding device according to claim 1, characterized in that: A driving motor (32) is fixed on the loading platform (2), and an output end of the driving motor (32) is fixedly assembled with the main limit cylinder (31).

6. A hydrogen fuel cell plate dispensing and bonding device according to claim 1, characterized in that: The upper and lower groups of membrane electrode holders (4) are at the same distance from the electrode plate holder (3).

7. A hydrogen fuel cell plate dispensing and bonding device according to claim 1, characterized in that: The membrane electrode holder (4) is provided with a limiting groove (42) for limiting the membrane electrode processing position.

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