An automated fuel cell stack assembly device

Abstract

This utility model discloses an automatic assembly equipment for fuel cell stacks, characterized by comprising a machine base. A feeding assembly for loading separators and negative electrode sheets is provided on one side of the machine base. The feeding assembly includes a feeding trolley and a preliminary positioning assembly mounted on the feeding trolley. The machine base is sequentially equipped with a suction assembly, a secondary positioning assembly, a transfer assembly, and a dispensing assembly. The dispensing assembly is positioned above the transfer assembly and is used to dispense adhesive onto the adhesive frame on the transfer assembly. The suction assembly sequentially suctions the separators and negative electrode sheets to the secondary positioning assembly for precise positioning, and then sequentially transfers them to the transfer assembly. A discharge assembly is provided on the side of the machine base away from the feeding assembly. This utility model has the following advantages and effects: This solution adopts a multi-positioning structure, which can achieve high-precision assembly of fuel cell stacks, reduce misalignment and offset problems, and improve product consistency.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell stack assembly technology, and in particular to an automatic fuel cell stack assembly device. Background Technology

[0002] Fuel cell stacks are widely used in new energy technologies such as fuel cells and electrochemical energy storage. They are composed of multiple layers of structures such as separators and electrode sheets, and have extremely high requirements for assembly precision and interlayer alignment.

[0003] Existing fuel cell stack assembly equipment generally only has simple limiting functions, and the positioning accuracy is difficult to meet the requirements of modern fuel cell stack high-density stacking technology. Especially during the stacking process, if there are problems such as offset or skew between the separator and the negative electrode, it will not only affect the conductivity and airtightness of the fuel cell stack, but may also lead to serious faults such as fuel cell stack hot spots and local short circuits, thereby reducing the overall efficiency and lifespan of the machine. Utility Model Content

[0004] The purpose of this invention is to provide an automatic assembly equipment for fuel cell stacks, which adopts a multi-positioning structure to achieve high-precision assembly of fuel cell stacks, reduce misalignment and offset problems, and improve product consistency.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automatic assembly equipment for fuel cell stacks, characterized in that it includes a machine base, a feeding assembly for feeding separators and negative electrode sheets is provided on one side of the machine base, the feeding assembly includes a feeding trolley and a preliminary positioning assembly disposed on the feeding trolley; a suction assembly, a secondary positioning assembly, a transfer assembly and a dispensing assembly are sequentially provided on the machine base, the dispensing assembly is disposed above the transfer assembly and is used to dispense adhesive onto the adhesive frame on the transfer assembly; the suction assembly is used to sequentially suction the separators and negative electrode sheets to the secondary positioning assembly for precise positioning, and then sequentially transfer them to the transfer assembly; a discharge assembly is provided on the side of the machine base away from the feeding assembly, the separators and negative electrode sheets are positioned and fed to the feeding assembly, the suction assembly moves above the feeding assembly, suctions the separators and negative electrode sheets, transports them to the secondary positioning assembly for precise positioning, and then transports them to the transfer assembly and dispenses adhesive through the dispensing assembly.

[0006] By adopting the above technical solution, this utility model can realize a series of actions such as automatic feeding, automatic picking and positioning, dispensing and unloading of separators and negative electrode sheets, which improves the efficiency of the fuel cell stack assembly process, reduces the intensity of manual operation, and ensures the consistency and reliability of fuel cell stack assembly.

[0007] A further feature of this invention is that the preliminary positioning component includes a feeding platform and a partition positioning post and a negative electrode positioning post disposed on the feeding platform. The partition positioning post forms a partition positioning area, and the negative electrode positioning post forms a negative electrode positioning area. The negative electrode positioning area is located on the adjacent side of the partition positioning area.

[0008] By adopting the above technical solution, the division of the separator feeding area and the negative electrode feeding area, together with the separator positioning post and the negative electrode positioning post to limit the material position, avoids material misalignment and skew, provides a basis for subsequent suction and improves the overall assembly accuracy.

[0009] A further feature of this invention is that: one end of the feeding assembly is provided with a feeding trough, the outer periphery of the feeding trough is provided with a plurality of feeding guide wheels, and the feeding trolley and the feeding trough are in sliding fit.

[0010] By adopting the above technical solution, the feeding trough, together with the feeding guide wheel, enables the feeding trolley to slide stably, ensuring the smooth sliding of the feeding trolley towards the machine platform, reducing the risk of jamming and deviation, and improving stability.

[0011] The present invention is further configured such that: the suction assembly includes a first suction guide rail arranged horizontally, a second suction guide rail arranged perpendicular to the first suction guide rail, a vertically arranged lifting suction guide rail, and a suction cup slidably arranged on the suction guide rail; a first suction slide is slidably arranged on the first suction guide rail, the second suction guide rail is installed on the first suction slide, a second suction slide is slidably arranged on the second suction guide rail, and the lifting suction guide rail is installed on the second suction slide.

[0012] By adopting the above technical solution, the suction component has three-axis movement capability, which can realize the precise suction and transfer of materials in the feeding component. The lifting guide rail combined with the action of the suction cup makes loading and unloading more flexible, ensuring that the materials are accurately transferred without damage, and improving the stability of the equipment.

[0013] A further feature of this invention is that the secondary positioning component includes a secondary positioning platform mounted on the machine base, and the secondary positioning platform is provided with a secondary positioning area with an adjustable positioning surface.

[0014] By adopting the above technical solution, the secondary positioning platform further precisely positions the material after it has been picked up by setting up a positioning area and positioning column, ensuring that the material is accurately positioned before transfer, avoiding subsequent assembly deviations, and improving the assembly accuracy of the fuel cell stack.

[0015] A further feature of this invention is that the secondary positioning area includes a positioning support surface and a secondary positioning column disposed around the positioning support surface. The secondary positioning platform is provided with a sliding groove, and the secondary positioning column is slidably disposed in the sliding groove. The secondary positioning platform is also provided with an adjusting cylinder for driving the secondary positioning column to move. The sliding groove is perpendicular to the edge of the positioning support surface.

[0016] By adopting the above technical solution, the secondary positioning column can slide in the groove and its position can be adjusted by adjusting the cylinder, so that the positioning structure can be adapted to materials of different specifications or sizes, thereby improving the versatility and adaptability of the equipment.

[0017] A further feature of this invention is that the transfer assembly includes a transfer guide rail and a tray slidably disposed on the transfer guide rail, the tray is provided with a plastic frame feeding area, and the outer periphery of the plastic frame feeding area is provided with plastic frame positioning posts.

[0018] By adopting the above technical solution, the pallet in the transfer component slides on the guide rail, which can accurately carry and transport the positioned materials. At the same time, the glue frame loading area and its positioning column structure ensure that the glue frame is placed stably, which facilitates the glue dispensing operation and improves the glue dispensing positioning accuracy.

[0019] A further feature of this invention is that the dispensing assembly includes a horizontally arranged first dispensing guide rail, a second dispensing guide rail perpendicular to the first dispensing guide rail, a vertically arranged lifting dispensing guide rail, and a dispensing head slidably disposed on the lifting dispensing guide rail; a first dispensing slide is slidably disposed on the first dispensing guide rail, the second dispensing guide rail is mounted on the first dispensing slide, a second dispensing slide is slidably disposed on the second dispensing guide rail, and the lifting dispensing guide rail is mounted on the second dispensing slide.

[0020] By adopting the above technical solution, the dispensing assembly can drive the dispensing head to move along three axes, enabling it to move precisely to various dispensing positions on the glue frame. The lifting structure ensures that the dispensing height is adjustable to meet the needs of different glue frame structures. The dispensing process is stable and controllable, with uniform glue volume, thus improving the dispensing quality.

[0021] A further feature of this invention is that the unloading assembly includes an unloading trolley and a support column mounted on the unloading trolley. A boss is provided at one end of the machine base near the unloading assembly. The transfer guide rail extends to the boss. Multiple unloading guide wheels are provided on the outer periphery of the boss. The boss and the unloading trolley form a sliding fit.

[0022] By adopting the above technical solution, the feeding component receives the pallet by setting up a feeding trolley and support column, and achieves smooth sliding through the boss and feeding guide wheel, making the feeding process smooth and efficient and avoiding material falling.

[0023] A further feature of this invention is that the boss is equipped with a lifting cylinder for driving the pallet to rise and fall.

[0024] By adopting the above technical solution, the lifting cylinder can lift the pallet and then place it on the support column, which facilitates the handover with the unloading trolley, improves the convenience of the unloading process, and further improves the assembly efficiency.

[0025] In summary, this utility model has the following beneficial effects:

[0026] 1. This utility model integrates multiple functional components, realizes the automation of the fuel cell stack assembly process, greatly reduces manual intervention, effectively improves the overall assembly efficiency, and adapts to the needs of large-scale continuous production.

[0027] 2. This utility model adopts a multi-positioning structure, which can realize high-precision assembly of the fuel cell stack, reduce misalignment and offset problems, and improve product consistency.

[0028] 3. The positioning area of ​​this utility model adopts an adjustable structure, which can adapt to separators and negative electrode sheets of different specifications and sizes, with strong compatibility, and meet the assembly requirements of various product models. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the structure of the suction component of this utility model.

[0031] Figure 3 This is a structural schematic diagram of the secondary positioning component of this utility model.

[0032] Figure 4 This is a structural schematic diagram of the secondary positioning component of this utility model from another angle.

[0033] Figure 5 This is a schematic diagram of the structure of the transfer component of this utility model.

[0034] Figure 6 This is a structural schematic diagram of the dispensing assembly of this utility model.

[0035] In the diagram: 1. Machine base; 2. Feeding trolley; 3. Initial positioning assembly; 4. Suction assembly; 5. Secondary positioning assembly; 6. Transfer assembly; 7. Dispensing assembly; 31. Feeding platform; 32. Partition positioning post; 33. Negative electrode positioning post; 11. Feeding trough; 12. Feeding guide wheel; 41. First suction guide rail; 42. Second suction guide rail; 43. Lifting suction guide rail; 44. Suction cup; 45. First suction slide; 46. Second suction slide; 51. Secondary positioning. Platform; 52. Positioning support surface; 53. Secondary positioning column; 54. Slide groove; 55. Adjusting cylinder; 61. Transfer guide rail; 62. Pallet; 63. Glue frame loading area; 64. Glue frame positioning column; 71. First dispensing guide rail; 72. Second dispensing guide rail; 73. Lifting dispensing guide rail; 74. Dispensing head; 75. First dispensing slide; 76. Second dispensing slide; 8. Unloading trolley; 81. Support column; 13. Boss; 14. Unloading guide wheel; 15. Lifting cylinder. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] An automated fuel cell stack assembly device, such as Figure 1 As shown, the machine includes a machine base 1. A feeding assembly for feeding separators and negative electrode sheets is provided on one side of the machine base 1. The feeding assembly includes a feeding trolley 2 and a preliminary positioning assembly 3 set on the feeding trolley 2. The machine base 1 is provided with a suction assembly 4, a secondary positioning assembly 5, a transfer assembly 6 and a dispensing assembly 7 in sequence. The dispensing assembly 7 is set above the transfer assembly 6 and is used to dispense glue onto the glue frame on the transfer assembly 6. The suction assembly 4 is used to suction the separators and negative electrode sheets in sequence to the secondary positioning assembly 5 for precise positioning, and then transfer them in sequence to the transfer assembly 6. A discharge assembly is provided on the side of the machine base 1 away from the feeding assembly.

[0038] The feeding assembly includes a feeding trolley 2, which can be manually slid into the feeding trough 11 at one end of the machine platform 1. It is guided and slidably engaged by multiple feeding guide wheels 12 arranged around the feeding trough 11 to improve the docking accuracy. The feeding trolley 2 is equipped with a preliminary positioning assembly 3, which includes a feeding platform 31 and a partition feeding area 32 and a negative electrode feeding area 33 arranged on the feeding platform 31. Partition positioning posts 32 are arranged around the outer periphery of the partition feeding area 32, and negative electrode feeding area 33 is arranged around the outer periphery of the negative electrode feeding area 33. The partition positioning posts 32 form a partition positioning area, and the negative electrode positioning posts 33 form a negative electrode positioning area. The negative electrode positioning area is located on the adjacent side of the partition positioning area to achieve preliminary partition positioning of the partition and the negative electrode, ensuring that they are placed neatly and facilitating subsequent pick-up operations.

[0039] like Figure 2As shown, the suction assembly 4 is installed on the machine base 1 and has a three-axis movement function. Its structure includes: a first suction guide rail 41 arranged horizontally, a second suction guide rail 42 arranged perpendicular to the first guide rail direction, and a lifting suction guide rail 43 arranged vertically. A first suction slide 45 is provided on the first suction guide rail 41, the second suction guide rail 42 is installed on the first suction slide 45, a second suction slide 46 is slidably provided on the second suction guide rail 42, and the lifting suction guide rail 43 is installed on the second suction slide 46. A suction cup 44 that can move up and down is provided on the lifting suction guide rail 43 for adsorbing and transporting the separator and negative electrode sheet. Through the structure, the suction cup 44 can realize the precise adsorption and placement of components in different positions, and the movement process is stable with high repeatability and positioning accuracy.

[0040] like Figure 3 and Figure 4 As shown, the absorbed negative electrode sheet and separator are conveyed to the secondary positioning assembly 5 in the middle of the machine 1 for precise positioning. The secondary positioning assembly 5 includes a secondary positioning platform 51, on which a secondary positioning area with an adjustable positioning surface is provided. The secondary positioning area includes a positioning support surface 52 and secondary positioning posts 53 located around the positioning support surface. Multiple movable secondary positioning posts 53 are provided around the outer periphery of the secondary positioning area. The secondary positioning posts 53 are slidably installed in the slide grooves 54 on the secondary positioning platform 51 and are driven to move by the adjusting cylinder 55 located below the secondary positioning platform 51. The slide grooves are set perpendicular to the edge of the positioning support surface 52, so that the spacing of the secondary positioning posts 53 can be automatically adjusted according to different types of separators or negative electrode sheets to achieve compatible positioning of parts of different specifications.

[0041] like Figure 5 As shown, after positioning, the negative electrode sheet and separator are sequentially transported by the suction component 4 and placed on the glue frame on the transfer component 6. The transfer component 6 includes a transfer guide rail 61 fixed on the machine base 1 and a tray 62 slidably arranged on it. The tray 62 realizes linear reciprocating motion along the guide rail. The surface of the tray 62 is provided with a glue frame feeding area 63. The outer periphery of the glue frame feeding area 63 is provided with glue frame positioning posts 64 to limit the swing of the glue frame and ensure installation accuracy. After the tray 62 drives the glue frame to move below the dispensing component 7, the automatic dispensing operation is performed.

[0042] like Figure 6 As shown, the dispensing assembly 7 is installed above the transfer assembly 6 and consists of a multi-axis slide system, including a first dispensing guide rail 71, a second dispensing guide rail 72, and a lifting dispensing guide rail 73, which correspond to movement in three axes. The first dispensing guide rail 71 is equipped with a first dispensing slide 75, the second dispensing guide rail 72 is installed on the first dispensing slide 75, and the second dispensing slide 76 can slide on it; the lifting dispensing guide rail 73 is installed on the second dispensing slide 76, and a dispensing head 74 is installed on the lifting dispensing guide rail 73 for applying glue to specific positions inside the glue frame.

[0043] In addition, to ensure accurate dispensing height, a laser displacement sensor is installed on one side of the dispensing head 74, which can detect changes in the surface height of the glue frame in real time and dynamically adjust the Z-axis height to ensure dispensing quality.

[0044] After dispensing and assembly, the glue frame is moved to the far end of the machine 1 by the tray 62 and enters the unloading area. The unloading component includes an unloading trolley 8 and a support column 81 installed on it, which is used to receive the assembled tray 62.

[0045] The end of the machine tool 1 is provided with a boss 13, and the transfer guide rail 61 extends to the top of the boss 13 to realize the natural transition of the pallet 62 to the material feeding area. Multiple material feeding guide wheels 14 are provided around the boss 13 to guide the material feeding trolley 8 to slide smoothly into the positioning. The boss 13 and the material feeding trolley 8 also adopt a sliding fit method to facilitate the insertion and removal of the material feeding trolley 8.

[0046] In addition, the boss 13 is equipped with a lifting cylinder 15, which is used to drive the pallet 62 to lift upward, thereby transferring the entire frame to the support column 81 of the unloading trolley 8. After the lifting is completed, the unloading trolley 8 locks the pallet 62 and pushes it out to the next process. After the lifting cylinder 15 is reset, the pallet 62 falls back to the initial position, completing one cycle.

[0047] The basic working principle of this utility model is as follows: First, the operator places a partition in the partition loading area 32, places an electrode sheet in the electrode sheet loading area, pushes the loading trolley 2 into the loading trough 11, then places the glue frame in the glue frame loading area 63, and the tray 62 moves the glue frame to below the dispensing assembly 7. The dispensing assembly 7 dispenses glue according to the selected dispensing trajectory. After dispensing, the tray 62 moves to one end close to the secondary positioning assembly 5, and the suction assembly 4 picks up the negative electrode sheet from the loading trolley 2 and transfers it to the secondary positioning assembly 5. After positioning, the positioned negative electrode sheet is picked up and placed onto the rubber frame on the tray 62. Then, the separator is picked up and positioned on the secondary positioning component 5. The positioned separator is then picked up and placed onto the negative electrode sheet on the tray 62. The tray 62 returns to its initial position and waits for manual placement of the rubber frame. After repeating this several times, the tray 62 moves to the boss 13 and is lifted by the lifting cylinder 15. It is then manually pushed into the unloading trolley 8. After the lifting cylinder 15 is released, the tray 62 falls onto the support column 81 on the unloading trolley 8. After locking, the unloading trolley 8 is pulled away.

[0048] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An automatic stack assembly apparatus, characterized by, The machine includes a machine base (1), and a feeding assembly for feeding the separator and negative electrode sheet is provided on one side of the machine base (1). The feeding assembly includes a feeding trolley (2) and a preliminary positioning assembly (3) disposed on the feeding trolley (2). The machine (1) is provided with a suction component (4), a secondary positioning component (5), a transfer component (6) and a dispensing component (7) in sequence. The dispensing component (7) is located above the transfer component (6) and is used to dispense glue onto the glue frame on the transfer component (6). The suction component (4) is used to sequentially suction the separator and the negative electrode sheet to the secondary positioning component (5) for precise positioning, and then sequentially transfer them to the transfer component (6); The machine base (1) has a unloading component on the side away from the loading component; The separator and negative electrode plate are positioned and fed to the feeding assembly. The suction assembly (4) moves above the feeding assembly, and after suctioning the separator and negative electrode plate, it is transported to the secondary positioning assembly (5) for precise positioning, and then transported to the transfer assembly (6) and then glued by the dispensing assembly (7).

2. An automatic stack assembly apparatus according to claim 1, wherein: The preliminary positioning component (3) includes a loading platform (31) and a partition positioning post (32) and a negative electrode positioning post (33) set on the loading platform (31). The partition positioning post (32) forms a partition positioning area, and the negative electrode positioning post (33) forms a negative electrode positioning area. The negative electrode positioning area is located on the adjacent side of the partition positioning area.

3. The automatic fuel cell stack assembly equipment according to claim 1, characterized in that: One end of the feeding assembly is provided with a feeding trough (11), and a plurality of feeding guide wheels (12) are provided on the outer periphery of the feeding trough (11). The feeding trolley (2) and the feeding trough (11) form a sliding fit.

4. The automatic fuel cell stack assembly equipment according to claim 1, characterized in that: The suction component (4) includes a first suction guide rail (41) arranged horizontally, a second suction guide rail (42) arranged perpendicular to the first suction guide rail (41), a vertically arranged lifting suction guide rail (43), and a suction cup (44) slidably arranged on the lifting suction guide rail (43). A first suction slide (45) is slidably disposed on the first suction guide rail (41), a second suction guide rail (42) is mounted on the first suction slide (45), a second suction slide (46) is slidably disposed on the second suction guide rail (42), and a lifting suction guide rail (43) is mounted on the second suction slide (46).

5. The automatic fuel cell stack assembly equipment according to claim 1, characterized in that: The secondary positioning component (5) includes a secondary positioning platform (51) mounted on the machine base (1), and the secondary positioning platform (51) is provided with a secondary positioning area with an adjustable positioning surface.

6. The automatic fuel cell stack assembly equipment according to claim 5, characterized in that: The secondary positioning area includes a positioning support surface (52) and a secondary positioning column (53) located around the positioning support surface (52). The secondary positioning platform (51) is provided with a sliding groove (54). The secondary positioning column (53) is slidably disposed in the sliding groove (54). The secondary positioning platform (51) is also provided with an adjusting cylinder (55) for driving the secondary positioning column (53) to move. The sliding groove (54) is perpendicular to the edge of the positioning support surface (52).

7. The automatic fuel cell stack assembly equipment according to claim 1, characterized in that: The transfer assembly (6) includes a transfer guide rail (61) and a tray (62) slidably disposed on the transfer guide rail (61). The tray (62) is provided with a plastic frame feeding area (63), and the outer periphery of the plastic frame feeding area (63) is provided with plastic frame positioning posts (64).

8. The automatic fuel cell stack assembly equipment according to claim 1, characterized in that: The dispensing assembly (7) includes a first dispensing guide rail (71) arranged horizontally, a second dispensing guide rail (72) perpendicular to the first dispensing guide rail (71), a vertically arranged lifting dispensing guide rail (73), and a dispensing head (74) slidably arranged on the lifting dispensing guide rail (73). A first dispensing slide (75) is slidably disposed on the first dispensing guide rail (71), a second dispensing guide rail (72) is mounted on the first dispensing slide (75), a second dispensing slide (76) is slidably disposed on the second dispensing guide rail (72), and a lifting dispensing guide rail (73) is mounted on the second dispensing slide (76).

9. The automatic fuel cell stack assembly equipment according to claim 7, characterized in that: The unloading assembly includes an unloading trolley (8) and a support column (81) on the unloading trolley (8). The machine base (1) has a boss (13) at one end near the unloading assembly. The transfer guide rail (61) extends to the boss (13). The boss (13) has multiple unloading guide wheels (14) on its outer periphery. The boss (13) and the unloading trolley (8) are in sliding fit.

10. An automatic fuel cell stack assembly device according to claim 9, characterized in that: The boss (13) is equipped with a lifting cylinder (15) that drives the tray (62) to rise and fall.

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