Assembly device and assembly method of fuel cell

Abstract

The invention relates to the technical field of fuel cell assembling, in particular to an assembling device and method of a fuel cell, and the assembling device of the fuel cell comprises a guide assembly; the installation platform is arranged on the guide assembly in a sliding mode, a power unit is arranged on the installation platform, and the power unit is used for driving the installation platform to slide on the guide assembly; the end plate mounting unit is used for stacking the lower end plates onto the mounting platform; the stacking unit is used for stacking the fuel cell assemblies on the mounting platform; and the pressing unit is used for pressing the fuel cell assemblies and the end plates stacked on the mounting platform. The fuel cell stacking and pressing device can achieve automatic stacking and pressing of fuel cells and is high in precision.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell assembly, and in particular to an assembly device and an assembly method for a fuel cell. Background Art

[0002] A fuel cell is a device that converts chemical energy directly into electrical energy. It is highly efficient and environmentally friendly. It is the fourth power generation technology after hydropower, thermal power generation and atomic power generation. Fuel cells convert the chemical energy of fuel into electrical energy through electrochemical reactions. They are not limited by the Carnot cycle effect and therefore have a higher energy conversion efficiency. Compared with traditional power generation methods, fuel cells use fuel and oxygen as raw materials, have no mechanical transmission parts, emit very little harmful gases, and have a long service life.

[0003] When manufacturing fuel cells, it is necessary to assemble their various components. The main components have their own functions during the assembly process. The bipolar plate is used to distribute fuel and oxidant, and collect and conduct current at the same time; the membrane electrode is the core component, in which the proton exchange membrane can conduct protons, and redox reactions occur on the electrodes; the insulating plate ensures the electrical insulation inside the battery to prevent short circuits; the upper and lower end plates play a role in protecting and fixing the internal components. This type of fuel cell relies on the coordination between these components. When hydrogen and other fuels undergo oxidation reactions at the anode, the generated protons pass through the proton exchange membrane to the cathode, and the electrons pass through the external circuit to form a current. Oxygen combines with protons and electrons at the cathode to generate water, thereby achieving continuous power output.

[0004] Most of the existing assembly methods are manual assembly, which is as follows: the end plates, insulating plates, bipolar plates and membrane electrode components to be assembled are placed on both sides of the assembly table, and the operator is in the middle and faces the assembly table, and then the components are placed on the assembly table in sequence, and stacked and assembled, and then removed from the assembly table after assembly is completed. However, during manual assembly, the stacking precision control is inaccurate, which can easily cause uneven pressure distribution inside the fuel cell, affecting battery performance and service life. Summary of the invention

[0005] The purpose of the present invention is to address the defects of the prior art and provide an assembly device and an assembly method for a fuel cell, which can realize automatic stacking and pressing of the fuel cell with high precision.

[0006] In order to solve the above technical problems, in a first aspect, the present invention provides an assembly device for a fuel cell, comprising:

[0007] Guide components;

[0008] An installation platform, wherein the installation platform is slidably disposed on the guide assembly, and a power unit is disposed on the installation platform, and the power unit is used to drive the installation platform to slide on the guide assembly;

[0009] an end plate mounting unit for stacking the lower end plates onto the mounting platform;

[0010] A stacking unit, used for stacking the fuel cell assembly onto a mounting platform;

[0011] The pressing unit is used to press the fuel cell assemblies and end plates stacked on the mounting platform.

[0012] In some embodiments, the mounting platform includes a base and a mounting plate, the base is slidably connected to the guide assembly, the mounting plate is arranged on the base for supporting the fuel cell assembly and the end plate, an opening is provided on the mounting plate, a positioning mechanism is arranged between the base and the mounting plate, the positioning mechanism includes a lifting mechanism and a positioning plate, the lifting mechanism is used to control the positioning plate to extend or retract from the opening, the end plate mounting unit includes a pushing mechanism, the pushing mechanism is used to cooperate with the positioning plate of the mounting platform to push the end plate on the mounting platform straight, and adjustment mechanisms are arranged at both ends of the mounting platform, the adjustment mechanism is used to move the straightened end plate to a preset position.

[0013] In some embodiments, the lifting mechanism includes a lifting plate and a positioning motor, the positioning plate is vertically arranged on the lifting plate, an adjusting rod is threadedly connected to the lifting plate, the adjusting rod is arranged perpendicular to the mounting plate, a driven gear is arranged at one end of the adjusting rod, the output end of the positioning motor is perpendicular to the adjusting rod, the output end of the positioning motor is connected to a driving gear through a conversion mechanism, and the driving gear is meshed with the driven gear.

[0014] In some embodiments, the conversion mechanism includes a first rotating shaft and a second rotating shaft that are perpendicular to each other, one end of the first rotating shaft is connected to the output end of the positioning motor, the other end of the first rotating shaft is rotatably connected to the first rotating block, one end of the second rotating shaft is connected to the driving gear, the other end of the second rotating shaft is rotatably connected to the second rotating block, the rotating axes of the first rotating block and the second rotating block are parallel, the first rotating block and the second rotating block are connected by a connecting member, the connecting member includes a first positioning segment and a second positioning segment, the first positioning segment is rotatably connected to the first rotating block through a first connecting rod, the second positioning segment is rotatably connected to the second rotating block through a second connecting rod, and the first connecting rod is parallel to the second connecting rod.

[0015] In some embodiments, the pressing unit includes a pressing frame, on which a press and a locking and limiting mechanism are arranged. The press is used to press the stacked fuel cell assemblies and end plates. A locking hole is arranged on the mounting platform, and the locking and limiting mechanism is used to cooperate with the locking hole to fix the mounting platform.

[0016] In some embodiments, the end plate mounting unit includes an installation box, on which a control motor and an end plate suction seat are disposed, the control motor is used to control the end plate suction seat to move to the placement area, an extension seat is disposed at the output end of the control motor, a fixed column is fixedly disposed on the extension seat, the end plate suction seat is hinged to the fixed column, the end plate suction seat is used to absorb the end plate in the placement area, and a separation unit is also disposed on the extension seat, the separation unit is used to separate the end plate from the end plate suction seat.

[0017] In some embodiments, an adjustment box is hingedly connected to one end of the fixed column away from the extension seat, a movable plate is movably arranged on the adjustment box, the separation unit includes a driving unit and a displacement column, the displacement column is slidably connected to the extension seat, the driving unit is used to control the displacement column to move in a direction perpendicular to the extension seat, a fixed plate is fixedly arranged on the displacement column, the fixed plate is arranged in parallel above the movable plate, a plurality of telescopic parts are arranged on the fixed plate, one end of the telescopic part is fixedly connected to the fixed plate, and the other end of the telescopic part is elastically hinged to the movable plate.

[0018] In some embodiments, a limiting column is provided on the fixed plate, a limiting hole is provided on the movable plate, one end of the limiting column passes through the limiting hole, and the limiting column limits the rotation range of the movable plate through the limiting hole.

[0019] In some embodiments, the stacking unit includes a stacking rack, a placement area is arranged below the stacking rack, and at least one grabbing mechanism is arranged on the stacking rack, the grabbing mechanism includes a grabbing drive mechanism, a suction cup, and an electric telescopic rod, the grabbing drive mechanism is used to control the suction cup to suck the fuel cell assembly in the placement area and place the fuel cell assembly on the installation platform, and the electric telescopic rod is used to separate the fuel cell assembly from the suction cup.

[0020] In a second aspect, the present invention provides an assembly method of a fuel cell assembly device, comprising:

[0021] The mounting platform slides along the guide assembly to the side of the end plate mounting unit;

[0022] The end plate installation unit grabs the lower end plate in the placement area and places the lower end plate on the installation platform;

[0023] The positioning plate on the mounting platform extends out of the opening, and the pushing mechanism pushes the lower end plate on the mounting platform toward the positioning plate to align the lower end plate;

[0024] The installation platform slides along the guide assembly to the side of the stacking unit;

[0025] The stacking unit grabs the fuel cell assemblies in the placement area and stacks the fuel cell assemblies in sequence on the lower end plate;

[0026] The mounting platform slides along the guide assembly to the side of the end plate mounting unit;

[0027] The end plate installation unit grabs the upper end plate in the placement area and places the upper end plate on the installation platform;

[0028] The positioning plate on the mounting platform extends out of the opening, and the pushing mechanism pushes the upper end plate on the mounting platform toward the positioning plate to align the upper end plate;

[0029] The installation platform slides along the guide assembly to the pressing unit, and the pressing unit presses the stacked fuel cell assembly and the end plate.

[0030] The beneficial effects of the present invention are:

[0031] 1. The installation platform of the present invention serves as a stacking and pressing platform for fuel cells and can be moved along the guide assembly to the corresponding workstations of the end plate installation unit, the stacking unit and the pressing unit respectively. The end plate installation unit can stack the upper end plate and the lower end plate on the installation platform, the stacking unit can stack the fuel cell assembly (bipolar plate, membrane electrode, etc.) on the upper end plate of the installation platform, and the pressing unit can press the stacked fuel cell assembly and the end plate, thereby completing the automatic assembly of the fuel cell.

[0032] 2. The present invention reduces the height of the installation platform by providing a conversion mechanism, so that the movement of the stacked fuel cell assembly and the end plate on the installation platform is more stable, which is beneficial to improving the quality of fuel cell assembly.

[0033] 3. The present invention provides a locking and limiting mechanism so that the installation platform can be fixed before press-fitting, thereby ensuring that the fuel cell assembly will not shift during the press-fitting process.

[0034] 4. The present invention provides an end plate installation unit, a pushing mechanism, and an adjusting mechanism, so that the end plate can be accurately adjusted after being grabbed onto the installation platform.

[0035] 5. The end plate suction seat of the present invention comprises a fixed plate and a movable plate, and the movable plate can swing relative to the fixed plate, so that the end plate suction seat can grab the fuel cell assembly and end plate that are not placed flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0037] Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0038] Figure 3 It is a three-dimensional structural schematic diagram of the installation platform and the guide assembly used in conjunction with each other in the present invention.

[0039] Figure 4 yes Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0040] Figure 5 yes Figure 3 Schematic diagram of the partial enlarged structure at point C in the middle.

[0041] Figure 6 It is a three-dimensional structural diagram of the installation platform in the present invention

[0042] Figure 7 It is a schematic diagram of the structure of the components used to drive the lifting plate to move up and down in the present invention.

[0043] Figure 8 It is a schematic diagram of the connection structure of the first rotating shaft, the first rotating block and other components.

[0044] Fig. 9 It is a structural schematic diagram of a first connecting rod rotatably arranged on a first rotating block.

[0045] Fig.10 It is a structural schematic diagram of the pressing unit in the present invention.

[0046] Fig.11 It is a structural schematic diagram of a locking rod provided at the output end of a power box.

[0047] Fig.12 It is a structural schematic diagram of the pushing mechanism in the present invention.

[0048] Fig.13 It is a structural schematic diagram of the end plate installation unit in the present invention.

[0049] Fig.14 yes Fig.13 Another three-dimensional structural schematic diagram in which components such as an installation box are not provided.

[0050] Fig.15 yes Fig.14 Schematic diagram of the local enlarged structure at point D in the middle.

[0051] Fig.16 A schematic structural diagram of a base disposed in the regulating box of the present invention.

[0052] Fig.17 It is a schematic diagram of the internal structure of the telescopic part.

[0053] Fig.18 Schematic diagram of the structure in which screws and other components are installed in the installation box.

[0054] Fig.19 Schematic diagram of the three-dimensional structure of the stacking unit.

[0055] Fig. 20 yes Fig.19 Schematic diagram of the local enlarged structure at point E in the middle.

[0056] Figure numerals: mounting platform 1; base 11; mounting plate 12; opening 121; L-shaped connecting seat 13; reinforcing column 14; sliding seat 15; sliding groove 151; roller 152; driving motor 16; driving gear 161; positioning mechanism 17; positioning plate 171; lifting plate 172; positioning motor 173; driving gear 174; driven gear 175; conversion mechanism 176; first rotating shaft 1761; second rotating shaft 1762; first rotating block 1763; first connecting rod 17631; second rotating block 1764; first positioning section 1765; second positioning section 1766; connecting section 1767; first mounting opening 1768; second mounting opening 1769; first guide rod 177; adjusting rod 178; rubber pad 179; locking platform 18; locking hole 181;

[0057] Guide assembly 2; track 21; rack 22;

[0058] Pressing unit 3; press frame 31; fixed seat 32; servo hydraulic press 33; pressing plate 34; pressing head 35; guide column 36; locking limit mechanism 37; power box 371; locking rod 372; supporting seat 38;

[0059] End plate mounting unit 4; mounting box 41; bottom plate 411; top plate 412; adjusting motor 413; screw rod 414; adjusting member 415; second guide rod 416; mounting frame 42; rotating motor 421; adjusting shaft 422; driven gear plate 423; extension seat 424; driving unit 425; adjusting gear 426; displacement column 427; fixing plate 43; telescopic member 44; outer cylinder 441; retractable rebound rod 442; articulated ball head 443; return spring 444; lower limit plate 445; upper limit plate 446; fixing column 45; adjusting box 46; base 461; ball 462; movable plate 47; limit hole 471; first suction cup 472; limit column 48; pushing mechanism 49; positioning seat 491; base plate 492; slide rod 493; pushing plate 494; pushing cylinder 495;

[0060] Stacking unit 5; stacking rack 51; placement area 52; suction cup mounting seat 53; second suction cup 54; cross bar 55; grabbing cylinder 56; cross beam 57; connecting rod 58. DETAILED DESCRIPTION

[0061] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0062] like Figure 1 As shown, the present invention provides an assembly device for a fuel cell, comprising:

[0063] Guide component 2;

[0064] An installation platform 1, wherein the installation platform 1 is slidably disposed on the guide assembly 2, and a power unit is disposed on the installation platform 1, and the power unit is used to drive the installation platform 1 to slide on the guide assembly 2;

[0065] An end plate mounting unit 4, used for stacking the lower end plates onto the mounting platform 1;

[0066] A stacking unit 5, used for stacking the fuel cell assembly onto the mounting platform 1;

[0067] The pressing unit 3 is used to press the fuel cell assemblies and end plates stacked on the installation platform 1 .

[0068] like Figure 3 As shown, the guide assembly 2 includes two rails 21 and a rack 22, the two rails 21 and the rack 22 are arranged in parallel, and the rack 22 is arranged between the two rails 21. Figure 1 As shown, the end plate mounting unit 4 , the stacking unit 5 , and the pressing unit 3 are all arranged along the track 21 , wherein the end plate mounting unit 4 is arranged between the stacking unit 5 and the pressing unit 3 .

[0069] like Figure 3 , 6 As shown, the mounting platform 1 includes a base 11 and a mounting plate 12. L-shaped connecting seats 13 are fixedly arranged at the four corners of the upper surface of the base 11. A plurality of reinforcing columns 14 are also arranged on the upper surface of the base 11. The mounting plate 12 is fixedly connected to the upper ends of the L-shaped connecting seats 13 and the reinforcing columns 14. Figure 5 As shown, a plurality of slides 15 are arranged on the lower surface of the base 11, and a slide groove 151 is provided on the slide 15. The slide 15 is slidably arranged on the track 21 through the slide groove 151. A plurality of rollers 152 are arranged on the slide 15, and the rollers 152 abut against the track 21. The plurality of rollers 152 are evenly arranged on both sides of the track 21, so that the mounting platform 1 can stably slide on the track 21.

[0070] like Figure 6 As shown, a power unit is also provided on the base 11, and the power unit includes a drive motor 16. Figure 4As shown, one end of the driving motor 16 passes downward through the base 11 and meshes with the rack 22 through the driving gear 161 , so that the mounting platform 1 can be driven to slide along the track 21 by the driving motor 16 .

[0071] like Figure 6 As shown, the mounting plate 12 is provided with an opening 121, and the base 11 is also provided with a positioning mechanism 17, which is arranged on one side of the guide rail. Figure 7 As shown, the positioning mechanism 17 includes a positioning plate 171, a lifting plate 172 and a positioning motor 173. The positioning plate 171 is vertically fixed on the lifting plate 172. The positioning plate 171 is parallel to the guide rail. The lifting plate 172 is threaded with an adjusting rod 178. The adjusting rod 178 is arranged perpendicular to the mounting plate 12. A driven gear 175 is arranged at one end of the adjusting rod 178. The output end of the positioning motor 173 is perpendicular to the adjusting rod 178. The output end of the positioning motor 173 is connected to a driving gear 174 through a conversion mechanism 176. The driving gear 174 is meshed with the driven gear 175. The adjusting rod 178 can be driven to rotate by the positioning motor 173, thereby driving the positioning plate 171 on the lifting plate 172 to extend out of the opening 121 on the mounting plate 12 or retract. A first guide rod 177 is vertically arranged on the base 11. The first guide rod 177 passes through the lifting plate 172 and is slidably connected to the lifting plate 172. A rubber pad 179 is arranged on the lower surface of the lifting plate 172.

[0072] like Figure 8 As shown, the conversion mechanism 176 includes a first rotating shaft 1761 and a second rotating shaft 1762 that are perpendicular to each other. One end of the first rotating shaft 1761 is connected to the output end of the positioning motor 173, and the other end of the first rotating shaft 1761 has a first mounting port 1768 and is rotatably connected to the first rotating block 1763. One end of the second rotating shaft 1762 is connected to the driving gear 174, and the other end of the second rotating shaft 1762 has a second mounting port 1769 and is rotatably connected to the second rotating block 1764. The rotating axes of the first rotating block 1763 and the second rotating block 1764 are parallel. The first rotating block 1763 and the second rotating block 1764 are connected by a connecting piece, and the connecting piece is Z-shaped. The connecting piece includes a first positioning segment 1765 and a second positioning segment 1766, as shown in FIG. Fig. 9 As shown, the first positioning segment 1765 is rotationally connected to the first rotating block 1763 through the first connecting rod 17631, the second positioning segment 1766 is rotationally connected to the second rotating block 1764 through the second connecting rod, the first connecting rod 17631 is parallel to the second connecting rod, and the first positioning segment 1765 and the second positioning segment 1766 are connected through the connecting segment 1767.

[0073] It should be noted that, first, the base 11 is set on the guide assembly 2, and the guide assembly 2 is close to the ground, which makes it impossible to install the positioning motor 173 at this position. At the same time, the upper surface of the mounting plate 12 is the operating area, which is also not suitable for installing the positioning motor 173. Therefore, it is necessary to set the positioning motor 173 between the base 11 and the mounting plate 12; and the method of directly driving the active gear 174 to rotate by the positioning motor 173 is not only less accurate and reliable, but also occupies more space. Specifically, since the adjustment rod 178 needs to be set vertically, if the positioning motor 173 is also set vertically, it is necessary to increase the distance between the base 11 and the mounting plate 12 so that the positioning motor 173 is set above or below the adjustment rod 178. After increasing the distance between the base 11 and the mounting plate 12, the mounting plate 12 will be raised. After the fuel cell assembly is stacked, the center of gravity of the fuel cell assembly will become higher, and there may be shaking, offset, etc. during operation, which will affect the assembly of the fuel cell to a certain extent.

[0074] In order to solve this problem, the present invention sets a conversion mechanism 176 so that the positioning motor 173 can be arranged horizontally, thereby greatly reducing the distance between the base 11 and the mounting plate 12, thereby improving the stability of the mounting platform 1. In addition, while the space occupied by the positioning mechanism 17 is greatly reduced, an efficient transmission function is achieved within a limited space, ensuring the accuracy and reliability of the rotation of the driving gear 174.

[0075] like Fig.10 As shown, the pressing unit 3 includes a pressing frame 31, a fixing seat 32 is arranged on the pressing frame 31, a pressing machine is arranged on the fixing seat 32, and the pressing machine includes a servo hydraulic machine 33, a pressing plate 34 is arranged at the output end of the servo hydraulic machine 33, a pressing head 35 is arranged at the lower end of the pressing plate 34, and two guide columns 36 are arranged on the pressing plate 34, and the guide columns 36 are slidably penetrated on the fixing seat 32 to guide the movement of the pressing plate 34. Among them, a plurality of threaded holes can be opened near the corners of the pressing head 35, and the upper end plate of the fuel cell can be fixed on the pressing head 35 in advance by bolts.

[0076] like Figure 1 , 2 As shown, a locking platform 18 is also provided on the base 11, and a plurality of locking holes 181 are provided on the locking platform 18. Fig.10 , 11 As shown, a locking and limiting mechanism 37 and a supporting seat 38 are also provided on the press-fitting frame 31. The locking and limiting mechanism 37 includes a power box 371. The output end of the power box 371 is provided with a locking rod 372 used in conjunction with the locking hole 181. The locking rod 372 slides through the supporting seat 38. The locking hole 181 is used to cooperate with the locking rod 372, so that the mounting platform 1 is fixed under the press-fitting frame 31.

[0077] like Fig.13 As shown, the end plate installation unit 4 includes an installation box 41, such as Fig.18 As shown, a bottom plate 411 and a top plate 412 are provided in the installation box 41, an adjusting motor 413 is provided on the top plate 412, a screw 414 is provided at the output end of the adjusting motor 413, two ends of the screw 414 are rotatably connected to the bottom plate 411 and the top plate 412 respectively, an adjusting member 415 is threadedly connected to the screw 414, two second guide rods 416 are vertically provided between the bottom plate 411 and the top plate 412, the adjusting member 415 is slidably connected to the second guide rod 416, one end of the adjusting member 415 extends out of the installation box 41, and a mounting frame 42 is provided at one end of the adjusting member 415 extending out of the installation box 41, a rotating motor 421 and an adjusting shaft 422 are provided on the mounting frame 42, and the rotating motor 421 drives the adjusting shaft 422 to rotate through a driven gear plate 423, as shown in FIG. Fig.13 , 14 As shown, an extension seat 424 is fixedly sleeved on the adjusting shaft 422, and a driving unit 425, an adjusting gear 426 and a displacement column 427 are provided on the extension seat 424. The adjusting gear 426 is rotatably set on the extension seat 424, the displacement column 427 is slidingly connected to the extension seat 424, the adjusting gear 426 is meshed with the displacement column 427, and the driving unit 425 drives the displacement column 427 to rise or fall through the adjusting gear 426.

[0078] like Fig.14 As shown, a fixing plate 43 is disposed at the lower end of the displacement column 427, and the fixing plate 43 is fixedly connected to the displacement column 427. A telescopic member 44 is fixedly disposed at the four corners of the fixing plate 43. The telescopic member 44 includes an outer cylinder 441 that is penetrated on the fixing plate 43. Fig.17 As shown, a retractable rebound rod 442 is provided in the outer cylinder 441, and the lower end of the retractable rebound rod 442 is hinged with a movable plate 47, and a return spring 444 is sleeved on the retractable rebound rod 442. The lower end of the return spring 444 is connected to a lower limit plate 445 sleeved on the retractable rebound rod 442, and an upper limit plate 446 is provided above the return spring 444. The retractable rebound rod 442 is slidably penetrated in the upper limit plate 446, and the upper limit plate 446 is connected to the inner wall of the outer cylinder 441.

[0079] like Fig.14 As shown, a fixed column 45 is arranged inside the displacement column 427, a horizontal rod is arranged at the upper end of the fixed column 45, the fixed column 45 is fixed to the extension seat 424 through the horizontal rod, and an avoidance groove corresponding to the horizontal rod is opened on the displacement column 427, so that the lifting and lowering of the displacement column 427 will not be affected by the horizontal rod. Fig.14 The middle one indicates the avoidance slot. Fig.16 As shown, one end of the fixed column 45 away from the extension seat 424 is hinged with an adjustment box 46, a base 461 is fixedly arranged in the adjustment box 46, a ball 462 is movably arranged in the base 461, and the fixed column 45 is hinged with the ball 462, as shown in FIG. Fig.14 As shown, the movable plate 47 is arranged between the adjusting box 46 and the fixed plate 43. The adjusting box 46 is used to limit the movable plate 47 from moving in the direction away from the fixed plate 43. In the initial state, the return spring 444 of the telescopic member 44 is in a compressed state, and the retracted rebound rod 442 presses the movable plate 47 tightly against the adjusting box 46. Four first suction cups 472 are arranged on the lower surface of the movable plate 47. The first suction cup 472 is used to suck the end plate, and the lower end of the first suction cup 472 is slightly lower than the lower end of the adjusting box 46.

[0080] It is understandable that when grabbing the end plate, if the end plate is not placed flat, the four first suction cups 472 cannot contact the end plate at the same time, so that it cannot be grabbed. Even if it is grabbed, there is a risk of falling due to instability during the grabbing process. The present invention can avoid this problem. Specifically, when the installation box 41 controls the movable plate 47 to descend, if the end plate is tilted or not placed flat, some of the first suction cups 472 are in contact with the end plate, and the remaining first suction cups 472 are still at a certain distance from the end plate, and the movable plate 47 continues to move downward. Movement, since the fixed column 45 and the adjusting box 46 are hinged by the ball 462, the retractable rebound rod 442 and the movable plate 47 are hinged, and the movable plate 47 is placed on the adjusting box 46, the movable plate 47 will squeeze the retractable rebound rod 442 and rotate, so that the remaining first suction cups 472 also contact with the end plate, and then the end plate is adsorbed and grasped by the four first suction cups 472 at the same time, and the installation box 41 controls the movable plate 47 to rise, and the movable plate 47 is gradually reset under the action of the telescopic member 44 and returns to a state parallel to the fixed plate 43.

[0081] like Fig.14 , 15 As shown, a limiting column 48 is provided on the fixed plate 43 , a limiting hole 471 is provided on the movable plate 47 , one end of the limiting column 48 passes through the limiting hole 471 , and the limiting column 48 limits the rotation angle of the movable plate 47 through the limiting hole 471 .

[0082] like Fig.12 As shown, the end plate installation unit 4 includes a pushing mechanism 49, which includes a positioning seat 491, a base plate 492 is arranged on the positioning seat 491, two slide bars 493 are slidably penetrated on the base plate 492, and a pushing plate 494 is connected to the front end of the slide bar 493. A pushing cylinder 495 is arranged on the positioning seat 491, and the output end of the pushing cylinder 495 movably passes through the base plate 492 and is connected to the pushing plate 494. The pushing mechanism 49 is used to cooperate with the positioning plate 171 of the installation platform 1 to push the lower end plate on the installation platform 1. In addition, the installation platform 1 is fixedly provided with adjustment mechanisms at both ends along the direction parallel to the track 21. Figure 6The adjusting mechanism is not shown in the figure. The structure of the adjusting mechanism is the same as that of the pushing mechanism 49, including an adjusting seat, an adjusting cylinder and an adjusting plate. The adjusting seat is fixed on the mounting platform 1. After the pushing mechanism 49 pushes the end plate on the mounting platform 1, the two adjusting mechanisms push the end plate in a direction parallel to the track 21. When the adjusting cylinders of the two adjusting mechanisms are fully extended, the distance between the two adjusting plates is equal to the length of the end plate, so that the end plate is located at a preset position on the mounting platform 1, which is convenient for the subsequent accurate downward pressing of the clamping unit 3.

[0083] like Fig.19 As shown, the stacking unit 5 includes a stacking frame 51, two placement areas 52 are arranged below the stacking frame 51, the guide assembly 2 is located between the two placement areas 52, and at least one material grabbing mechanism is arranged on the stacking frame 51. Fig. 20 As shown, the material grabbing mechanism includes two suction cup mounting seats 53 parallel to each other, and a plurality of second suction cups 54 are arranged on the suction cup mounting seats 53. The two suction cup mounting seats 53 are connected to the cross bar 55 through connecting rods 58 at the same time. The upper end of the cross bar 55 is connected to the output end of the grabbing cylinder 56. The grabbing cylinder 56 is slidably arranged on the cross beam 57 of the stacking rack 51. The grabbing cylinder 56 is driven by a power mechanism to reciprocate along the length direction of the cross beam 57. An electric telescopic rod is also arranged on the cross bar 55. A plurality of electric telescopic rods can be arranged. The output end of the electric telescopic rod is downward and is provided with a butt joint for separating the fuel cell assembly from the second suction cup 54. The electric telescopic rod is a prior art. Fig.19 Not indicated.

[0084] Based on the above-mentioned fuel cell assembly device, the present invention also provides an assembly method of the fuel cell assembly device, comprising:

[0085] S1, the installation platform 1 slides along the guide assembly 2 to the side of the end plate installation unit 4; specifically:

[0086] like Figure 4 , 6 As shown, one end of the driving motor 16 is meshed with the rack 22 through the driving gear 161, and the driving motor 16 and the rack 22 cooperate to drive the mounting platform 1 to slide along the track 21. The moving distance of the mounting platform 1 can be set according to the initial position of the mounting platform 1, so that the driving motor 16 slides to the side of the end plate mounting unit 4, that is, slides to the bottom of the movable plate 47;

[0087] S2, the end plate installation unit 4 grabs the lower end plate of the placement area 52 and places the lower end plate on the installation platform 1; specifically:

[0088] like Figure 1 As shown, the end plate suction seat of the end plate mounting unit 4 is initially located directly above the rack 22, as shown in FIG. Fig.18As shown, the rotating motor 421 drives the adjusting shaft 422 to rotate through the driven gear plate 423, and the adjusting shaft 422 drives the extending seat 424 and the end plate suction seat on the extending seat 424 to rotate, so that the end plate suction seat rotates to the top of the placement area 52 corresponding to the end plate;

[0089] like Fig.18 As shown, the adjusting motor 413 drives the screw rod 414 to rotate, and the screw rod 414 rotates to drive the adjusting member 415 to move vertically downward, and the fixed plate 43 and the movable plate 47 also move vertically downward, so that the four first suction cups 472 on the movable plate 47 suck the lower end plate. If the lower end plate is not placed flat, after some of the first suction cups 472 suck the lower end plate, Fig.16 As shown, since the fixed column 45 is hinged to the adjustment box 46 through the ball 462, the movable plate 47 is placed on the adjustment box 46, and the movable plate 47 will rotate until the other first suction cups 472 are also sucked on the lower end plate. After the lower end plate is stably sucked, the adjusting motor 413 drives the movable plate 47 to rise, and the movable plate 47 is restored to a horizontal state under the action of multiple telescopic members 44, and the rotating motor 421 drives the movable plate 47 to rotate to the initial position, and the adjusting motor 413 drives the movable plate 47 to descend, so that the lower end plate is pressed on the mounting platform 1, and the adjustment box 46 is pressed on the lower end plate. Then, the driving unit 425 drives the displacement column 427 to rise through the adjusting gear 426, and the displacement column 427 drives the movable plate 47 to rise through the telescopic member 44. Since the fixed column 45 is fixed on the extension seat 424 and does not move, the adjustment box 46 is always pressed on the lower end plate. After the movable plate 47 rises to a certain height, the first suction cup 472 is separated from the lower end plate, and the placement of the lower end plate is completed at this time.

[0090] S3, the positioning plate 171 on the installation platform 1 extends out of the opening 121, and the pushing mechanism 49 pushes the lower end plate on the installation platform 1 toward the positioning plate 171 to align the lower end plate; specifically:

[0091] like Figure 7 , 8 As shown, the positioning motor 173 drives the first rotating shaft 1761 to rotate. When the first rotating shaft 1761 rotates, the first rotating block 1763 arranged at the first mounting opening 1768 thereof will also rotate. Since the first rotating block 1763 can rotate flexibly at the first mounting opening 1768, when the first rotating shaft 1761 drives the first rotating block 1763 to rotate, the first rotating block 1763 itself will also start to rotate; after the first rotating block 1763 rotates, it will sequentially drive the first positioning section 1765, the connecting section 1767 and the second positioning section 1766 connected thereto to rotate, and when the second positioning section 1766 rotates, it will drive the second rotating block 1764 to move at the second mounting opening 1769 of the second rotating shaft 1762, and finally, the movement of the second rotating block 1764 will drive the second rotating shaft 1762 to rotate;

[0092] The rotation of the second rotating shaft 1762 drives the driving gear 174 sleeved thereon to rotate, and the driving gear 174 cooperates with the driven gear 175 of the lower half of the adjusting rod 178 to rotate the adjusting rod 178, and the adjusting rod 178 is threadedly connected with the lifting plate 172, so that the lifting plate 172 moves upward along the axial direction under the restriction of the first guide rod 177, thereby driving the two positioning plates 171 installed on the lifting plate 172 to extend out of the opening 121 on the mounting plate 12;

[0093] like Fig.12 As shown, at this time, the push cylinder 495 of the push mechanism 49 can be used to push the lower end plate toward the two positioning plates 171 through the push plate 494, so as to align the lower end plate;

[0094] Then, the adjusting cylinders of the two adjusting mechanisms are fully extended, and the lower end plate is adjusted in a direction parallel to the track 21 by using the two adjusting plates, so that the lower end plate moves to a preset position.

[0095] S4, the installation platform 1 slides along the guide assembly 2 to the side of the stacking unit 5;

[0096] S5, the stacking unit 5 grabs the fuel cell assembly in the placement area 52, and stacks the fuel cell assembly on the lower end plate in sequence; specifically:

[0097] The grabbing cylinder 56 is driven by a power mechanism (in the prior art, any structure that can drive the grabbing cylinder 56 to move) to move to a preset position along the crossbar 57 of the stacking rack 51, and then drives the crossbar 55 to move downward through its output end. The crossbar 55 is connected to the suction cup mounting seat 53 through a connecting rod 58, so that a plurality of second suction cups 54 on the suction cup mounting seat 53 are close to the fuel cell assembly (insulating plate, bipolar plate, membrane electrode assembly, etc.) on the placement area 52, and the second suction cups 54 contact and adsorb the assembly, and then the fuel cell assembly is pressed on the lower end plate of the mounting platform 1 by the grabbing cylinder 56 and the power mechanism, and the electric telescopic rod on the crossbar 55 is extended to make it against the fuel cell assembly. At this time, the grabbing cylinder 56 controls the crossbar 55 to rise, and the electric telescopic rod continues to extend, so that during the rise of the second suction cup 54, the electric telescopic rod is still against the fuel cell assembly, so that the fuel cell assembly is separated from the suction of the second suction cup 54. Repeat this process until the number of stacking layers required by the design is reached.

[0098] S6, the installation platform 1 slides along the guide assembly 2 to the pressing unit 3, the end plate is pre-installed on the pressing unit 3, and the pressing unit 3 presses the stacked fuel cell assembly and the end plate, specifically:

[0099] The installation platform 1 slides along the guide assembly 2 to the bottom of the press frame 31 so that the locking rod 372 is aligned with the locking hole 181. The power box 371 drives the locking rod 372 to be inserted into the locking hole 181 to fix the installation platform 1. The servo hydraulic press 33 controls the pressing head 35 to compact the fuel cell assembly, wherein the upper end plate can be installed on the pressing head 35 in advance.

[0100] After the lower end plate, the fuel cell assembly, and the upper end plate are pressed, a long screw can be used to connect the lower end plate and the upper end plate, and the upper end plate can be separated from the pressing head 35.

[0101] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A fuel cell assembly device, characterized in that: include: Guide assembly (2); An installation platform (1), the installation platform (1) being slidably arranged on the guide assembly (2), a power unit being arranged on the installation platform (1), the power unit being used to drive the installation platform (1) to slide on the guide assembly (2); An end plate mounting unit (4) for stacking the lower end plates onto the mounting platform (1); A stacking unit (5) for stacking fuel cell assemblies on the mounting platform (1); The pressing unit (3) is used to press the fuel cell components and end plates stacked on the installation platform (1).

2. The fuel cell assembly device according to claim 1, characterized in that: The mounting platform (1) comprises a base (11) and a mounting plate (12), wherein the base (11) is slidably connected to the guide assembly (2), the mounting plate (12) is arranged on the base (11) and is used to support the fuel cell assembly and the end plate, the mounting plate (12) is provided with an opening (121), a positioning mechanism (17) is arranged between the base (11) and the mounting plate (12), the positioning mechanism (17) comprises a lifting mechanism and a positioning plate (171), the lifting mechanism is used to control the positioning plate (171) to extend or retract from the opening (121), the end plate mounting unit (4) comprises a pushing mechanism (49), the pushing mechanism (49) is used to cooperate with the positioning plate (171) of the mounting platform (1) to push the end plate on the mounting platform (1), and adjustment mechanisms are arranged at both ends of the mounting platform (1), the adjustment mechanisms are used to move the pushed end plate to a preset position.

3. The fuel cell assembly device according to claim 2, characterized in that: The lifting mechanism comprises a lifting plate (172) and a positioning motor (173); the positioning plate (171) is vertically arranged on the lifting plate (172); an adjusting rod (178) is threadedly connected to the lifting plate (172); the adjusting rod (178) is arranged perpendicularly to the mounting plate (12); a driven gear (175) is arranged at one end of the adjusting rod (178); an output end of the positioning motor (173) is perpendicular to the adjusting rod (178); the output end of the positioning motor (173) is connected to a driving gear (174) through a conversion mechanism (176); and the driving gear (174) is meshed with the driven gear (175).

4. The fuel cell assembly device according to claim 3, characterized in that: The conversion mechanism (176) comprises a first rotating shaft (1761) and a second rotating shaft (1762) which are perpendicular to each other. One end of the first rotating shaft (1761) is connected to the output end of the positioning motor (173). The other end of the first rotating shaft (1761) is rotatably connected to a first rotating block (1763). One end of the second rotating shaft (1762) is connected to the driving gear (174). The other end of the second rotating shaft (1762) is rotatably connected to a second rotating block (1764). The first rotating block (1763) and The rotating axis of the second rotating block (1764) is parallel, and the first rotating block (1763) and the second rotating block (1764) are connected by a connecting piece, and the connecting piece includes a first positioning section (1765) and a second positioning section (1766), the first positioning section (1765) is rotatably connected to the first rotating block (1763) through a first connecting rod (17631), and the second positioning section (1766) is rotatably connected to the second rotating block (1764) through a second connecting rod, and the first connecting rod (17631) is parallel to the second connecting rod.

5. The fuel cell assembly device according to any one of claims 1 to 4, characterized in that: The pressing unit (3) comprises a pressing frame (31), on which a press and a locking and limiting mechanism (37) are arranged, the press is used to press the stacked fuel cell assembly and the end plate, the mounting platform (1) is provided with a locking hole (181), and the locking and limiting mechanism (37) is used to cooperate with the locking hole (181) to fix the mounting platform (1).

6. The fuel cell assembly device according to any one of claims 2 to 4, characterized in that: The end plate installation unit (4) comprises an installation box (41), on which a control motor and an end plate suction seat are arranged, the control motor is used to control the end plate suction seat to move to the placement area (52), an extension seat (424) is arranged at the output end of the control motor, a fixing column (45) is fixedly arranged on the extension seat (424), the end plate suction seat is hinged to the fixing column (45), the end plate suction seat is used to suck the end plate of the placement area (52), and a separation unit is also arranged on the extension seat (424), the separation unit is used to separate the end plate from the end plate suction seat.

7. The fuel cell assembly device according to claim 6, characterized in that: An end of the fixed column (45) away from the extension seat (424) is hinged with an adjustment box (46), and a movable plate (47) is movably arranged on the adjustment box (46). The separation unit comprises a driving unit (425) and a displacement column (427), and the displacement column (427) is slidably connected to the extension seat (424). The driving unit (425) is used to control the displacement column (427) to move in a direction perpendicular to the extension seat (424). A fixed plate (43) is fixedly arranged on the displacement column (427), and the fixed plate (43) is arranged in parallel above the movable plate (47). A plurality of telescopic members (44) are arranged on the fixed plate (43), and one end of the telescopic member (44) is fixedly connected to the fixed plate (43), and the other end of the telescopic member (44) is elastically hinged to the movable plate (47).

8. The fuel cell assembly device according to claim 7, characterized in that: A limiting column (48) is arranged on the fixed plate (43), a limiting hole (471) is provided on the movable plate (47), one end of the limiting column (48) passes through the limiting hole (471), and the limiting column (48) limits the rotation range of the movable plate (47) through the limiting hole (471).

9. The fuel cell assembly device according to any one of claims 1 to 4, characterized in that: The stacking unit (5) comprises a stacking frame (51), a placement area (52) is arranged below the stacking frame (51), at least one material grabbing mechanism is arranged on the stacking frame (51), the material grabbing mechanism comprises a material grabbing drive mechanism, a suction cup, and an electric telescopic rod, the material grabbing drive mechanism is used to control the suction cup to suck the fuel cell assembly in the placement area (52) and place the fuel cell assembly on the installation platform (1), and the electric telescopic rod is used to separate the fuel cell assembly from the suction cup.

10. An assembling method of a fuel cell assembly device according to any one of claims 1 to 9, characterized in that: include: The mounting platform (1) slides along the guide assembly (2) to the side of the end plate mounting unit (4); The end plate installation unit (4) grabs the lower end plate of the placement area (52) and places the lower end plate on the installation platform (1); The positioning plate (171) on the installation platform (1) extends out of the opening (121), and the pushing mechanism (49) pushes the lower end plate on the installation platform (1) toward the positioning plate (171) to align the lower end plate; The mounting platform (1) slides along the guide assembly (2) to the side of the stacking unit (5); The stacking unit (5) grabs the fuel cell assemblies in the placement area (52) and stacks the fuel cell assemblies in sequence on the lower end plate; The installation platform (1) slides along the guide assembly (2) to the pressing unit (3), an end plate is pre-installed on the pressing unit (3), and the pressing unit (3) presses the stacked fuel cell assembly and the end plate.

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