A bipolar plate flow channel nickel sheet mounting robot

Abstract

This invention belongs to the field of bipolar plate production technology and discloses a bipolar plate flow channel nickel sheet mounting robot, including a worktable, a robot body mounted on the top of the worktable, a bipolar plate placed on the top of the worktable, and a nickel sheet body mounted on the top of the bipolar plate. It also includes: an adjustment component mounted on the side of the robot body; a replenishment component located on top of the adjustment component for replenishing the nickel sheet body and coating; and a mounting component mounted on the side of the adjustment component for mounting the nickel sheet onto the bipolar plate. This invention, through the coordinated structure of the adjustment component and the replenishment component, facilitates the adjustment and replenishment of corresponding materials while the mounting component is being flipped. A push plate drives a movable support to slide along a sliding seat, adjusting the opening position at the bottom of the movable support, allowing for the corresponding replenishment of coating and nickel sheet, thus saving replenishment steps.

Description

Technical Field

[0001] This invention belongs to the field of bipolar plate manufacturing technology, specifically a bipolar plate flow channel nickel sheet mounting robot. Background Technology

[0002] The bipolar plate flow channel nickel sheet mounting robot is a high-precision automated mechanical device. Its main function is to accurately mount nickel sheets into the flow channel of the bipolar plate, ensuring accurate mounting position and uniform pressure to meet the performance requirements of the bipolar plate.

[0003] The traditional nickel sheet mounting process involves first applying an adhesive coating to the inside of the flow channel to be mounted at the coating station, and then moving it to the mounting station for mounting. This method requires many steps, may cause deviations during movement, and occupies a lot of space. Therefore, a bipolar plate flow channel nickel sheet mounting robot is proposed. Summary of the Invention

[0004] To address the problems of numerous steps and potential deviations in traditional mounting stations mentioned in the background art, this invention provides a bipolar plate flow channel nickel sheet mounting robot.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bipolar plate flow channel nickel sheet mounting robot, comprising a worktable, a robot body mounted on the top of the worktable, a bipolar plate placed on the top of the worktable, a nickel sheet body mounted on the top of the bipolar plate, and further comprising:

[0006] Adjustment components are mounted on the side of the robot's main body;

[0007] A replenishment component, located on top of the adjustment assembly, is used to replenish the nickel sheet body and coating;

[0008] The mounting assembly is mounted on the side of the adjustment assembly for mounting nickel sheets onto the bipolar plate;

[0009] The adjustment assembly includes a main support frame and a telescopic rod two that are fixedly connected to the robot body. The telescopic rod one is fixedly connected inside the main support frame, and a rotating shaft is rotatably connected inside the main support frame.

[0010] The replenishment component includes a movable bracket, a nickel sheet holder assembly is slidably connected to the top of the movable bracket, and a paint replenishment pipe is fixedly connected inside the movable bracket.

[0011] Preferably, a spiral groove is provided on the outer side of one end of the rotating shaft, and a push plate is fixedly connected to one output end of the telescopic rod. The push plate is slidably connected to the rotating shaft, and a limit block is provided inside the spiral groove and slidably connected inside the spiral groove. The top of the push plate penetrates the top of the main support and abuts against the movable support.

[0012] The rotating shaft (303) includes a rotating shaft and a bushing. The bushing is fitted over the rotating shaft and is fixedly connected to the rotating shaft. The spiral groove (304) is located on the bushing.

[0013] The spiral groove (304) includes a first groove end and a second groove end. The first groove end and the second groove end can limit the sliding stroke of the limiting block. With the cross-section of the bushing as the projection plane, the included angle between the projections of the first groove end and the second groove end on the projection plane is 180°.

[0014] Preferably, a pair of sliding seats are slidably connected to the top of the main support, and springs are fixedly connected to the bottom of each sliding seat. The pair of sliding seats are slidably connected to the movable support, and the top of the sliding seats is fixedly connected to the output end of the telescopic rod.

[0015] Preferably, a telescopic rod is fixedly connected to the top of the movable bracket, a limiting groove is opened on the side of the movable bracket and a push plate is slidably connected inside the limiting groove, and a pair of openings are opened at the bottom of the movable bracket, while the paint replenishment pipe replenishment port is located inside the opening near the sliding seat.

[0016] Preferably, the nickel sheet holder assembly includes a sliding frame slidably connected to the movable bracket, a baffle is slidably connected inside the sliding frame, slots are linearly distributed inside the sliding frame, multiple elastic protrusions are provided inside the slots, magnets are provided on the side of the sliding frame connected to the three output ends of the telescopic rod, and a nickel sheet body is placed inside the slot;

[0017] The shape of the slot (4033) is adapted to the shape of the nickel sheet body (7). The slot (4033) includes a first extension side and a second extension side arranged opposite to each other. The elastic protrusion (4034) protrudes inward from the first extension side and the second extension side respectively. The distance between the elastic protrusion (4034) and the upper surface of the slot (4033) is greater than the thickness of the nickel sheet body (7).

[0018] Preferably, when the first telescopic rod drives the push plate to slide, the limiting block inside the push plate slides along the spiral groove to drive the rotating shaft to rotate, and the top of the push plate pushes the movable bracket to slide along the second telescopic rod to adjust the opening position at the bottom of the movable bracket.

[0019] Preferably, the mounting assembly includes a rotating base fixedly connected to a push plate. The rotating base has positioning grooves at both its upper and lower ends. A paint support and a patch support are slidably connected inside the rotating base, penetrating the rotating base. A telescopic rod is fixedly connected to the middle of both the paint support and the patch support. An air tube is fixedly connected to the side of the patch support.

[0020] Preferably, the paint support is configured as a paint plate at one end outside the rotating base, and the patch support is configured as a negative pressure suction head at one end outside the rotating base. Both the negative pressure suction head and the paint plate are located inside the positioning groove, and the negative pressure suction head and the paint plate are distributed on both sides of the rotating base.

[0021] Preferably, the telescopic rod three pushes the sliding frame to move, so that the slot moves to correspond to the position of the bottom opening of the movable bracket, and the telescopic rod two pushes the movable bracket to move downward, so that the movable bracket abuts against the rotating base.

[0022] Preferably, the positioning groove matches the bottom opening of the movable bracket, the air pipe penetrates the top of the rotating base and is connected to a small air pump, and the telescopic rod is fixedly connected to the rotating base.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] This invention, through the combination of adjustment components and replenishment parts, facilitates the replenishment of corresponding materials while the mounting assembly is being flipped. The push plate drives the movable bracket to slide along the sliding seat, and the opening position at the bottom of the movable bracket is adjusted so that the paint and nickel sheet can be replenished accordingly, saving replenishment steps.

[0025] This invention enables coating and mounting to be performed at the same workstation by setting up adjustment components and mounting components in coordination. By setting up a push plate that is driven by a telescopic rod to slide, the push plate drives the rotating shaft to rotate, and the rotating shaft drives the rotating base to rotate by 10°, thereby swapping the paint holder and the mounting holder. This allows coating and mounting to be performed at the process station, thereby ensuring the accuracy of mounting and avoiding deviations.

[0026] This invention, through the coordinated arrangement of mounting components and replenishment parts, facilitates material replenishment for one process while the other is being applied or mounted, thus saving workflow. By setting up a paint support and a patch support, the patch support moves upward synchronously during application to replenish the nickel sheet, and during mounting, the paint support moves upward synchronously to contact the replenishment port of the paint replenishment tube to replenish the paint, thereby saving the replenishment process and improving efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 The cross-sectional view of the component part is adjusted for the present invention;

[0029] Figure 3 This is an enlarged schematic diagram of the feeding component of the present invention;

[0030] Figure 4 This is a cross-sectional disassembly view of the mounting component of the present invention;

[0031] Figure 5 This is a schematic diagram showing the disassembled nickel sheet holder assembly of the present invention;

[0032] Figure 6 for Figure 5 Enlarged diagram of point A in the middle.

[0033] In the diagram: 1. Workbench; 2. Robot body; 3. Adjustment assembly; 301. Main support frame; 302. Telescopic rod one; 303. Rotating shaft; 304. Spiral groove; 305. Push plate; 306. Sliding seat; 307. Spring; 308. Telescopic rod two; 4. Material replenishment component; 401. Movable support frame; 402. Telescopic rod three; 403. Nickel sheet holder assembly; 4031. Sliding frame; 4032. Baffle; 4033. Slot; 4034. Elastic protrusion; 4035. Magnet; 404. Limiting groove; 405. Paint replenishment tube; 5. Mounting assembly; 501. Rotating base; 502. Positioning groove; 503. Paint holder; 504. Patch holder; 505. Telescopic rod four; 506. Air pipe; 6. Bipolar plate; 7. Nickel sheet body. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1 to 6 As shown, the present invention provides a bipolar plate flow channel nickel sheet mounting robot, including a workbench 1, a robot body 2 mounted on the top of the workbench 1, a bipolar plate 6 placed on the top of the workbench 1, a nickel sheet body 7 mounted on the top of the bipolar plate 6, and further including:

[0036] Adjust component 3, which is installed on the side of robot body 2;

[0037] The feeding component 4 is located on top of the adjustment assembly 3 to replenish the nickel sheet body 7 and the coating.

[0038] Mounting assembly 5, which is mounted on the side of adjustment assembly 3, is used to mount nickel sheets onto bipolar plate 6;

[0039] The adjustment component 3 includes a main support 301 and a telescopic rod 308 that are fixedly connected to the robot body 2. The telescopic rod 302 is fixedly connected inside the main support 301, and a rotating shaft 303 is rotatably connected inside the main support 301.

[0040] The material replenishment component 4 includes a movable bracket 401, a nickel sheet holder assembly 403 slidably connected to the top of the movable bracket 401, and a paint replenishment pipe 405 fixedly connected inside the movable bracket 401.

[0041] The above scheme is adopted as follows: the push plate 305 is slid by the telescopic rod 302, which drives the rotating shaft 303 to rotate. The rotating shaft 303 drives the rotating base 501 to rotate 180°, thereby swapping the paint bracket 503 and the patch bracket 504. At the same time, the push plate 305 pushes the movable bracket 401 to slide along the sliding seat 306 to adjust the opening position at the bottom of the movable bracket 401. Then, the telescopic rod 302 pushes the sliding frame 4031 to move, so that the slot 4033 moves to correspond to the opening position at the bottom of the movable bracket 401. The telescopic rod 208 pushes the sliding seat 306 to move the movable bracket 401 downward until the movable bracket 401 abuts against the rotating base 501.

[0042] like Figures 2 to 4 As shown, a spiral groove 304 is provided on the outer side of one end of the rotating shaft 303. A push plate 305 is fixedly connected to the output end of the telescopic rod 302. The push plate 305 is slidably connected to the rotating shaft 303. At the same time, a limit block is provided inside the spiral groove 304 and slidably connected inside the spiral groove 304. The top of the push plate 305 penetrates the top of the main support 301 and abuts against the movable support 401. The rotating shaft (303) includes a rotating shaft and a bushing. The bushing is sleeved on the rotating shaft and fixedly connected to the rotating shaft. The spiral groove (304) is located in the bushing. The swivel groove (304) includes a first groove end and a second groove end. The first groove end and the second groove end can limit the sliding stroke of the limiting block. With the cross-section of the bushing as the projection plane, the included angle between the projections of the first groove end and the second groove end on the projection plane is 180°. A pair of sliding seats 306 are slidably connected to the top of the main support 301. Springs 307 are fixedly connected to the bottom of each sliding seat 306. The pair of sliding seats 306 are slidably connected to the movable support 401. The top of the sliding seats 306 is fixedly connected to the output end of the telescopic rod 308.

[0043] Using the above solution: By setting the adjustment component 3, the push plate 305 is moved by the telescopic rod 302, so that the limiting block inside the push plate 305 slides along the spiral groove 304, and the rotating shaft 303 is driven to rotate 180°, thereby flipping the mounting component 5 so that the mounting component 5 can be converted between coating and pasting.

[0044] By setting the rotating shaft and bushing as a separate structure, it is easier to process the spiral groove on the bushing, and the specific shape and size of the spiral groove are also easy to adjust, as long as the bushing is replaced; setting the angle between the end of the first groove and the end of the second groove on the projection plane to be 180° can ensure that the base 501 can be rotated 180°.

[0045] The telescopic rod 308 and the sliding seat 306 are designed to facilitate the up-and-down movement of the movable bracket 401, thereby replenishing the paint or nickel sheet body 7. The telescopic rod 308 pushes the sliding seat 306 downward, causing the sliding seat 306 to move the movable bracket 401 downward until the movable bracket 401 comes into contact with the rotating base 501.

[0046] like Figure 3 , Figure 5 and Figure 6 As shown, a telescopic rod 402 is fixedly connected to the top of the movable bracket 401. A limiting groove 404 is opened on the side of the movable bracket 401, and a push plate 305 is slidably connected inside the limiting groove 404. A pair of openings are opened at the bottom of the movable bracket 401, and the filling port of the paint replenishment pipe 405 is located inside the opening near the sliding seat 306. The nickel sheet holder assembly 403 includes a sliding frame 4031 slidably connected to the movable bracket 401. A baffle 4032 is slidably connected inside the sliding frame 4031. The sliding frame 4031 has slots 4033 linearly distributed inside, and multiple slots 4033 are provided inside the slots 4033. Each elastic protrusion 4034, the sliding frame 4031 and the side connected to the output end of the telescopic rod 402 are provided with a magnet 4035, and a nickel sheet body 7 is placed inside the slot 4033; the shape of the slot (4033) is adapted to the shape of the nickel sheet body (7), the slot (4033) includes a first extension side and a second extension side arranged opposite to each other, and the elastic protrusion (4034) protrudes inward from the first extension side and the second extension side respectively; the distance between the elastic protrusion (4034) and the upper surface of the slot (4033) is greater than the thickness of the nickel sheet body (7).

[0047] The above solution is adopted: by setting up a movable bracket 401, the coating material and nickel sheet body 7 for bonding can be replenished. A pair of openings at the bottom of the movable bracket 401 correspond to the coating material and nickel sheet body 7 respectively. The coating material replenishment tube 405 is set inside the movable bracket 401, and the replenishment port of the coating material replenishment tube 405 is located inside the opening near the sliding seat 306, so that the bonding assembly 5 can directly replenish the coating material from the coating material replenishment tube 405. At the same time, the slot 4033 opened inside the sliding frame 4031 can correspond to the position of the other opening, thereby replenishing the nickel sheet body 7.

[0048] By setting the shape of the slot (4033) to match the shape of the nickel sheet body (7), and the elastic protrusions (4034) protruding inward from the first extension side and the second extension side respectively, it is convenient to position the nickel sheet body (7). On the other hand, the distance between the elastic protrusions (4034) and the upper surface of the slot (4033) is greater than the thickness of the nickel sheet body (7), so that the nickel sheet body (7) will not interfere with the baffle (4032) after being placed in the slot (4033).

[0049] The sliding frame 4031 and the telescopic rod 3 402 are equipped with magnets 4035 at their ends, which allows the sliding frame 4031 to easily maintain contact with the output end of the telescopic rod 3 402, and also facilitates the replacement of the sliding frame 4031. The telescopic rod 3 402 is used to control the sliding distance of the sliding frame 4031, thereby controlling the alignment of the slot 4033 with the opening of the movable bracket 401. By setting the baffle 4032, the suction head of the patch bracket 504 can easily squeeze and contact the nickel sheet body 7 to ensure the stable adsorption of the nickel sheet body 7. At the same time, the elastic protrusion 4034 set inside the slot 4033 allows the nickel sheet body 7 to be placed inside the slot 4033 without falling off, and does not obstruct the nickel sheet body 7 when it is pulled out.

[0050] like Figures 2 to 4 As shown, when the telescopic rod 302 drives the push plate 305 to slide, the limiting block inside the push plate 305 slides along the spiral groove 304 to drive the rotating shaft 303 to rotate. The top of the push plate 305 will push the movable bracket 401 to slide along the sliding seat 306 to adjust the opening position at the bottom of the movable bracket 401.

[0051] Using the above scheme: when the telescopic rod 302 drives the push plate 305 to slide, the limiting block inside the push plate 305 slides along the spiral groove 304 to drive the rotating shaft 303 to rotate, so that the rotating shaft 303 drives the rotating base 501 to rotate 180°, thereby exchanging the paint bracket 503 and the patch bracket 504. At the same time, the top of the push plate 305 pushes the movable bracket 401 to slide along the sliding seat 306, adjusting the opening position at the bottom of the movable bracket 401, thereby realizing the switching of the paint and nickel sheet replenishment positions.

[0052] like Figures 4 to 6As shown, the mounting assembly 5 includes a rotating base 501 fixedly connected to the push plate 305. Positioning grooves 502 are provided at both the upper and lower ends of the rotating base 501. A paint support 503 and a patch support 504 are slidably connected inside the rotating base 501, penetrating the rotating base 501. Telescopic rods 505 are fixedly connected to the middle of both the paint support 503 and the patch support 504. An air tube 506 is fixedly connected to the side of the patch support 504. One end of the paint support 503 located outside the rotating base 501 is configured as a paint plate, and one end of the patch support 504 located outside the rotating base 501 is configured as a negative pressure suction head. Both the negative pressure suction head and the paint plate are located inside the positioning grooves 502, and the negative pressure suction head and the paint plate are distributed on both sides of the rotating base 501. The positioning grooves 502 match the bottom opening of the movable bracket 401. A small air pump is connected to the top of the rotating base 501 via the air tube 506. The telescopic rods 505 are fixedly connected to the rotating base 501.

[0053] The above solution is adopted as follows: By setting up the mounting component 5, the rotating base 501 drives the paint bracket 503 and the patch bracket 504 to rotate, so that the paint and the nickel sheet body 7 can be mounted in the same station to ensure accuracy. By setting up the paint bracket 503 and the patch bracket 504, the paint bracket 503 applies paint to the flow channel groove, and then the rotating base 501 rotates so that the patch bracket 504 carries the nickel sheet for installation, so as to complete the application and mounting in the same station.

[0054] like Figures 4 to 6 As shown, the telescopic rod 3 402 pushes the sliding frame 4031 to move, so that the slot 4033 moves to correspond to the bottom opening position of the movable bracket 401. The telescopic rod 2 308 pushes the sliding seat 306 to drive the movable bracket 401 to move downward, so that the movable bracket 401 abuts against the rotating base 501.

[0055] Using the above scheme: the telescopic rod 3 402 pushes the sliding frame 4031 to move, so that the slot 4033 moves to correspond to the bottom opening position of the movable bracket 401. The telescopic rod 2 308 pushes the sliding seat 306 to drive the movable bracket 401 to move downward, so that the movable bracket 401 abuts against the rotating base 501. Then the telescopic rod 4 505 can push the patch bracket 504 to move, so that the suction head of the patch bracket 504 squeezes and adsorbs the nickel sheet body 7, thereby completing the replenishment of the nickel sheet body 7.

[0056] The working principle and usage process of this invention are as follows: During use, the turntable on the workbench 1 drives the bipolar plate 6 to rotate, so that the flow channel groove is perpendicular to the rotating base 501. Then, the telescopic rod 2 308 pushes the sliding seat 306 to move the movable bracket 401 down, so that the movable bracket 401 abuts against the rotating base 501. Then, a pair of telescopic rods 4 505 are activated at the same time, so that the paint bracket 503 applies paint to the flow channel groove. At the same time, the suction head of the patch bracket 504 abuts against the nickel sheet body 7 and is adsorbed by activating the external air pump. Then, the telescopic rods 4 505 are retracted to replenish the coated nickel sheet body 7, and the telescopic rod 2 308 is retracted at the same time.

[0057] Then, the first telescopic rod 302 pushes the push plate 305 to move, causing the push plate 305 to drive the rotating shaft 303 to rotate the base 501, so that the paint bracket 503 and the patch bracket 504 are reversed. The push plate 305 simultaneously pushes the movable bracket 401 to move, so that the paint replenishment tube 405 corresponds to the paint bracket 503. Then, the second telescopic rod 308 presses down again, so that the movable bracket 401 abuts against the rotating base 501. Finally, the fourth telescopic rod 505 is activated, so that the paint bracket 503 and the patch bracket 504 are pushed synchronously, thereby completing the mounting of the nickel sheet body 7 and the replenishment of paint on the paint bracket 503 coating plate.

[0058] Then, the workbench 1 rotates to move the flow channel grooves that need to be mounted to the underside of the rotating base 501 in sequence, and the above operation is repeated.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bipolar plate flow channel nickel sheet mounting robot, comprising a workbench (1), a robot body (2) mounted on the top of the workbench (1), a bipolar plate (6) placed on the top of the workbench (1), and a nickel sheet body (7) mounted on the top of the bipolar plate (6), characterized in that, Also includes: Adjustment component (3), which is mounted on the side of the robot body (2); A feeding component (4) is provided on top of the adjustment assembly (3) for replenishing the nickel sheet body (7) and coating; The mounting assembly (5) is mounted on the side of the adjustment assembly (3) for mounting nickel sheets onto the bipolar plate (6); The adjustment component (3) includes a main support (301) and a telescopic rod (308) fixedly connected to the robot body (2). The telescopic rod (302) is fixedly connected inside the main support (301), and a rotating shaft (303) is rotatably connected inside the main support (301). The material replenishment component (4) includes a movable bracket (401), a nickel sheet holder assembly (403) is slidably connected to the top of the movable bracket (401), and a paint replenishment tube (405) is fixedly connected inside the movable bracket (401). A spiral groove (304) is provided on the outer side of one end of the rotating shaft (303). A push plate (305) is fixedly connected to the output end of the telescopic rod (302). The push plate (305) is slidably connected to the rotating shaft (303). At the same time, a limit block is provided inside the spiral groove (304) and slidably connected inside the spiral groove (304). The top of the push plate (305) penetrates the top of the main support (301) and abuts against the movable support (401). A pair of sliding seats (306) are slidably connected to the top of the main support (301). The movable bracket (401) has a pair of openings at the bottom, and the paint replenishment tube (405) replenishment port is located inside the opening on the side near the sliding seat (306); When the first telescopic rod (302) drives the push plate (305) to slide, the limiting block inside the push plate (305) slides along the spiral groove (304) to drive the rotating shaft (303) to rotate. The top of the push plate (305) will push the movable bracket (401) to slide along the second telescopic rod (308) to adjust the opening position at the bottom of the movable bracket (401). The mounting assembly (5) includes a rotating base (501) fixedly connected to the push plate (305), and telescopic rods (505) fixedly connected to the middle of the paint bracket (503) and the patch bracket (504). The paint support (503) is configured as a paint plate at one end located outside the rotating base (501), and the patch support (504) is configured as a negative pressure suction head at one end located outside the rotating base (501). The first telescopic rod (302) pushes the push plate (305) to move, causing the push plate (305) to drive the rotating shaft (303) to rotate the base (501) and change the orientation of the paint bracket (503) and the patch bracket (504). The push plate (305) simultaneously pushes the movable bracket (401) to move, so that the paint replenishment tube (405) and the paint bracket (503) correspond. Then the second telescopic rod (308) presses down again, so that the movable bracket (401) and the rotating base (501) come into contact. Finally, the fourth telescopic rod (505) is activated, so that the paint bracket (503) and the patch bracket (504) are pushed synchronously, thereby completing the mounting of the nickel sheet body (7) and the replenishment of paint on the paint bracket (503) coating plate.

2. The bipolar plate flow channel nickel sheet mounting robot according to claim 1, characterized in that: The rotating shaft (303) includes a rotating shaft and a bushing. The bushing is fitted over the rotating shaft and is fixedly connected to the rotating shaft. The spiral groove (304) is located on the bushing. The spiral groove (304) includes a first groove end and a second groove end. The first groove end and the second groove end can limit the sliding stroke of the limiting block. The cross-section of the bushing is a projection surface. The angle between the projections of the first groove end and the second groove end on the projection surface is 180°.

3. The bipolar plate flow channel nickel sheet mounting robot according to claim 1, characterized in that: Each sliding seat (306) is fixedly connected to a spring (307) at its bottom. A pair of sliding seats (306) are slidably connected to the movable bracket (401). The top of the sliding seat (306) is fixedly connected to the output end of the telescopic rod (308).

4. The bipolar plate flow channel nickel sheet mounting robot according to claim 1, characterized in that: The top of the movable bracket (401) is fixedly connected to a telescopic rod (402), and a limiting groove (404) is opened on the side of the movable bracket (401), and a push plate (305) is slidably connected inside the limiting groove (404).

5. The bipolar plate flow channel nickel sheet mounting robot according to claim 1, characterized in that: The nickel sheet holder assembly (403) includes a sliding frame (4031) slidably connected to the movable bracket (401). A baffle (4032) is slidably connected inside the sliding frame (4031). Slots (4033) are linearly distributed inside the sliding frame (4031). Multiple elastic protrusions (4034) are provided inside the slots (4033). Magnets (4035) are provided on the side of the sliding frame (4031) that is connected to the output end of the telescopic rod (402). The nickel sheet body (7) is placed inside the slots (4033). The shape of the slot (4033) is adapted to the shape of the nickel sheet body (7). The slot (4033) includes a first extension side and a second extension side arranged opposite to each other. The elastic bump (4034) protrudes inward from the first extension side and the second extension side respectively. The distance between the elastic bump (4034) and the upper surface of the slot (4033) is greater than the thickness of the nickel sheet body (7).

6. The bipolar plate flow channel nickel sheet mounting robot according to claim 1, characterized in that: The rotating base (501) has positioning grooves (502) at both the upper and lower ends. The rotating base (501) has a paint bracket (503) and a patch bracket (504) that penetrate the rotating base (501) and are slidably connected inside. The patch bracket (504) has an air tube (506) fixedly connected to its side.

7. The bipolar plate flow channel nickel sheet mounting robot according to claim 6, characterized in that: The negative pressure suction head and the coating plate are both located inside the positioning groove (502), and the negative pressure suction head and the coating plate are distributed on both sides of the rotating base (501).

8. The bipolar plate flow channel nickel sheet mounting robot according to claim 4, characterized in that: The telescopic rod three (402) pushes the sliding frame (4031) to move, so that the slot (4033) moves to correspond to the bottom opening position of the movable bracket (401). The telescopic rod two (308) pushes the telescopic rod two (308) to drive the movable bracket (401) to move downward, so that the movable bracket (401) abuts against the rotating base (501).

9. The bipolar plate flow channel nickel sheet mounting robot according to claim 6, characterized in that: The positioning groove (502) matches the bottom opening of the movable bracket (401), the air pipe (506) penetrates the top of the rotating base (501) and is connected to a small air pump, and the telescopic rod (505) is fixedly connected to the rotating base (501).

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