Auxiliary assembling device for fuel cell stack

Abstract

The invention relates to the technical field of battery assembly, and discloses a fuel cell stack auxiliary assembly device, which comprises a bottom plate, a telescopic frame and a distance adjusting assembly, the telescopic frame is fixedly connected to the top of the bottom plate, the distance adjusting assembly is arranged above the bottom plate, and the distance adjusting assembly comprises a positioning rod fixedly connected to the top of the bottom plate. A main base is slidably connected above the bottom plate and located on the outer wall of the positioning rod, and a gear is rotatably connected to the middle of the upper surface of the main base; after the single battery piece is put, the sliding rod is extruded, so that the sliding rod slides in the gear, the sliding teeth slide into the annular groove from the vertical groove to release the limiting of the gear, and the slave bases on the two sides can be relatively close to each other and fit the single battery piece, so that the distance between the two positioning frames can be actively adjusted after the single battery piece is put; therefore, the positioning frame can adjust the subsequently put battery pieces, the problem that the distance between the positioning frames needs to be adjusted when an operator assembles fuel cells with different specifications is avoided, and the operation convenience of the equipment is improved.

Description

Technical Field

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

[0002] A fuel cell is a power generation device that converts the chemical energy in a fuel and an oxidant into electrical energy through an electrochemical reaction. Its reaction process is not limited by the Carnot cycle and has a high conversion efficiency. However, the output voltage of a single fuel cell is low, making it difficult to directly apply it in practical scenarios. Therefore, the current common practice is to stack multiple single cells in series to form a fuel cell stack to supply power to an external load.

[0003] During the actual fuel cell stack assembly process, if there is a lack of effective limiting devices or the limiting devices are not precise enough, components can easily misalign during assembly. This can lead to poor sealing, which in turn can cause reactant gas leakage, internal channeling, and cooling medium contamination of the membrane electrode. In severe cases, it can even cause the stack to malfunction, posing a safety hazard. Furthermore, during the assembly and compression of the stack, misalignment between components can cause localized stress concentrations, ultimately causing stack component fractures.

[0004] When assembling fuel cells of varying specifications, operators often need to manually adjust the spacing of key components, such as the positioning brackets. This cumbersome and complex process severely impacts the ease of use and assembly efficiency of the equipment. For fuel cell stack assembly equipment, workers spend significant time adjusting the spacing of the positioning brackets each time a fuel cell of a different specification is assembled, resulting in low overall production efficiency.

[0005] If there are no effective buffering and deceleration measures when placing cells, they will fall too quickly and easily collide with the stacked cells below, causing damage to the cells and reducing product qualification rates. Furthermore, if the cells are not fully aligned during the stacking operation, individual cells may not lie flat due to friction with the side of the positioning frame. Uneven force during the stacking process can also damage the cells.

[0006] To this end, a fuel cell stack auxiliary assembly device is proposed. Summary of the Invention

[0007] The object of the present invention is to provide a fuel cell stack auxiliary assembly device to solve the problems raised in the above background technology.

[0008] The cam is fixedly mounted on a top of the base plate, wherein the cam is secured to the bottom of the base plate with respect to the transmission gears, and the cam is secured to the bottom of the base with respect to the transmission gears.

[0009] The top end face of said sliding arm is fixedly provided with a toothed plate, and the toothed plate is meshed with said second toothed plate, and said toothed plate is meshed with said second toothed plate.

[0010] Preferably, a rotating assembly is provided inside the slider, and the rotating assembly includes an injection tube rotatably connected to the inside of the slider, the bottom of the slider is rotatably connected to a sleeve rack, the top of the sleeve rack is sleeved on the outer wall of the injection tube, the bottom of the slider is rotatably connected to a first turntable, the bottom of the first turntable is eccentrically fixedly connected to a first round rod, the first round rod is slidably connected to the inside of the sleeve rack, the bottom of the slider is vertically slidably connected to a second round rod, the top of the second round rod is fixedly connected to a cross plate, a third spring is fixedly connected between the cross plate and the bottom of the inner cavity of the slider, the bottom of the outer wall of the second round rod is fixedly connected to a protrusion, and the inner cavity of the first turntable is provided with a threaded groove adapted to the protrusion.

[0011] Preferably, a vibration assembly is provided above the base plate, and the vibration assembly includes a fixed rod fixedly connected to the upper surface of the base plate, the fixed rod is rotatably connected to the gear shaft at one end away from the base plate, the gear shaft is fixedly connected to the second turntable on the side away from the fixed rod, the second turntable is eccentrically fixedly connected to the third round rod on the side away from the gear shaft, the outer wall of the third round rod is rotatably connected to a connecting piece, and the end of the connecting piece away from the third round rod is rotatably connected to the outer wall of the main base, the top of the main base is fixedly connected to a positioning plate, the surface of the positioning plate is slidably connected to a slide, the bottom of the slide is fixedly connected to the top of the base plate with a fourth spring, and the bottom of the slide is fixedly connected to the third gear plate meshing with the gear shaft.

[0012] Preferably, the total depth of the gear and the vertical groove is equal to the height of the sliding rod, and the depth of the annular groove is equal to the height of the sliding tooth.

[0013] Preferably, the second rack is in the shape of an inverted triangle, and the side of the second rack close to the positioning frame is in the shape of a right triangle. The magnetic poles of the magnetic plate and the magnetic coating on the surface of the slide rail are the same and magnetically repel each other. The special-shaped rod slides inside the rack rod toward the direction of the magnetic plate under the action of magnetic force.

[0014] Preferably, the end of the injection tube away from the positioning frame is externally connected to a glue injection pump, and the outer walls of the shift ring and the horizontal plate are both provided with bevels, and when the shift ring rotates, the bevels squeeze the horizontal plate downward.

[0015] Preferably, a pressure plate is installed on the top of the telescopic frame, the bottom of the pressure plate is in contact with the top of the slide, the upper half of the third tooth plate is a smooth surface, and the lower half of the third tooth plate is provided with a rack.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. After the battery cell is placed, the sliding rod is squeezed to slide inside the gear. The sliding tooth slides from the vertical groove into the annular groove to release the gear limit, so that the bases on both sides can be relatively close to each other and fit the single battery cell. This allows the spacing between the two positioning frames to be actively adjusted after the single battery cell is placed, so that the positioning frames can adjust to the subsequently placed battery cells, avoiding the problem of operators having to adjust the spacing between the positioning frames when assembling fuel cells of different specifications, thereby improving the convenience of equipment operation.

[0017] 2. The blocking of the dial rings on both sides during the falling process of the battery can reduce the speed of the battery cell when falling downwards, reducing damage to the battery cell. By sliding the slider upward once when a battery cell is dropped inside the positioning frame, the height of the slider is always higher than the top battery cell during the process of continuous upward stacking of the battery cells, avoiding impact and damage to the stacked battery cells when the battery cells are dropped.

[0018] 3. The vibration of the main base when the telescopic frame pressing plate is pressed down can make the stacked battery cells on the main base shake slightly together, so that the battery cells can fit together during the stacking process, avoiding the problem that some battery cells cannot be laid flat due to friction with the side of the positioning frame, and the battery cells are not evenly stressed during the stacking process, which may cause damage, thereby improving the yield of the battery cells in the stacking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is an exploded schematic diagram of the pitch adjustment assembly structure of the present invention; Figure 4 It is a partial cross-sectional schematic diagram of the gear structure of the present invention; Figure 5 This is a schematic cross-sectional view of the interior of the gear structure of the present invention; Figure 6 This is an exploded schematic diagram of the retarder assembly structure of the present invention; Figure 7 It is a front view schematic diagram of the overall structure of the present invention; Figure 8 It is a partial cross-sectional schematic diagram of the rotating assembly structure of the present invention; Figure 9 This is an exploded schematic diagram of the rotating assembly structure of the present invention; Figure 10 It is a schematic cross-sectional view of the rotating assembly structure of the present invention; Figure 11 It is a schematic diagram of the explosion of the vibration component structure of the present invention.

[0020] In the picture: 1. Bottom plate; 2. Telescopic frame; 3. Distance adjustment assembly; 4. Retarding assembly; 5. Rotating assembly; 6. Vibrating assembly; 31. Positioning rod; 32. Main base; 33. Gear; 34. Vertical groove; 35. Annular groove; 36. Sliding rod; 37. Sliding gear; 38. First spring; 39. First tooth plate; 310. Slave base; 311. Second spring; 41. Positioning frame; 42. Slider; 43. Dial ring; 44. Gear rod; 45. Transmission belt; 46. First rack; 47. Special-shaped rod; 48. Magnetic plate; 49. Second rack; 410. Second rack; 411. Slide rail; 51. Liquid injection tube; 52. Casing rack; 53. First rotary disc; 54. First round rod; 55. Second round rod; 56. Cross plate; 57. Third spring; 58. Threaded groove; 59. Protrusion; 61. Fixed rod; 62. Gear shaft; 63. Second turntable; 64. Third round rod; 65. Connecting piece; 66. Slide; 67. Positioning plate; 68. Fourth spring; 69. Third gear plate. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] Embodiments of the present invention See also Figures 1 to 11 A fuel cell stack auxiliary assembly device includes a base plate 1, a telescopic frame 2 and a distance adjustment component 3. The telescopic frame 2 is fixedly connected to the top of the base plate 1. The distance adjustment component 3 is arranged above the base plate 1. The distance adjustment component 3 includes a positioning rod 31 fixedly connected to the top of the base plate 1. A main base 32 is slidably connected to the outer wall of the positioning rod 31 above the base plate 1. A gear 33 is rotatably connected to the middle of the upper surface of the main base 32. The inner wall of the gear 33 is symmetrically opened with vertical grooves 34. The inner wall of the gear 33 and the inner wall below the vertical groove 34 are opened. An annular groove 35 is provided, and a sliding rod 36 is slidably connected to the inside of the gear 33. The outer wall of the sliding rod 36 is symmetrically fixedly connected to the sliding teeth 37. The sliding teeth 37 are all slidably connected to the inside of the vertical groove 34. A first spring 38 is fixedly connected between the sliding rod 36 and the base plate 1. The upper surface of the base plate 1 is symmetrically slidably connected to the slave base 310. The side close to the slave base 310 is fixedly connected with a first tooth plate 39. The first tooth plate 39 is meshed with the gear 33. A second spring 311 is fixedly connected between the main base 32 and the slave base 310.

[0023] The total depth of the gear 33 and the vertical groove 34 is equal to the height of the slide bar 36 , and the depth of the annular groove 35 is equal to the height of the slide tooth 37 .

[0024] In actual use of this embodiment, the staff will drop the battery cell onto the top of the main base 32. During the dropping process, the battery cell will be blocked by the positioning plate 67 and the positioning frame 41 to achieve preliminary positioning. When the battery cell falls on the main base 32, the battery cell will exert downward pressure on the slide bar 36, causing the slide bar 36 to slide toward the inside of the gear 33. At the same time, the first spring 38 is squeezed and elastically contracts. During the sliding process of the slide bar 36 sliding toward the inside of the gear 33, the slide tooth 37 will slide within the internal limit of the vertical groove 34. When the slide bar 36 drives the slide tooth 37 to slide into the inside of the gear 33, the slide tooth 37 will enter the annular groove 34. 5, after the sliding tooth 37 falls into the annular groove 35, the gear 33 is no longer restricted and can start to rotate. At this time, the stretched second spring 311 begins to shrink. The shrinkage of the second spring 311 drives the slave base 310 and the first tooth plate 39 to move relative to each other on the bottom plate 1. The movement of the first tooth plate 39 drives the gear 33 to start to rotate, so that the two opposite slave bases 310 are synchronously moved closer to each other under the action of the meshing transmission of the first tooth plate 39 and the gear 33. The slave bases 310 on both sides are synchronously moved closer to each other so that the positioning frames 41 on both sides are in contact with the side walls of the battery cell, so that the distance between the two positioning frames 41 is equal to the width of the battery cell. After the battery cell is dropped, the slide rod 36 is squeezed to slide inside the gear 33, and the sliding tooth 37 slides from the vertical groove 34 into the annular groove 35 to release the limit of the gear 33, so that the slave bases 310 on both sides can be relatively close to each other and fit the single battery cell. This allows the spacing between the two positioning frames 41 to be actively adjusted after the single battery cell is dropped, so that the positioning frame 41 can adjust the subsequently dropped battery cells, avoiding the problem that the operator needs to adjust the spacing of the positioning frames 41 when assembling fuel cells of different specifications, thereby improving the convenience of equipment operation.

[0025] A deceleration assembly 4 is provided above the base 310. The deceleration assembly 4 includes a positioning frame 41 fixedly connected to the upper surface of the base 310. A slider 42 is slidably connected to the interior of the positioning frame 41. A dial ring 43 is rotatably connected to the interior of the slider 42. A gear rod 44 is rotatably connected to the side of the slider 42 located outside the positioning frame 41. A transmission belt 45 is connected between the dial ring 43 and the gear rod 44. A first rack 46 is provided on the outer wall of the positioning frame 41. The gear rod 44 meshes with the first rack 46. The gear rod 44 is internally movably connected to a special-shaped rod 47, one end of the special-shaped rod 47 is fixedly connected to a magnetic plate 48, and the other end of the special-shaped rod 47 is fixedly connected to a second gear plate 49. The side wall of the positioning frame 41 is provided with a second gear rail 410, and the second gear plate 49 is engaged with the second gear rail 410. The side wall of the positioning frame 41 is fixedly connected to a slide rail 411, and the opposing surfaces of the magnetic plate 48 and the slide rail 411 are coated with a magnetic coating with the same magnetic poles. The magnetic plate 48 is limitedly slidably connected to the slide rail 411.

[0026] The second rack rail 410 is in the shape of an inverted triangle, and the second rack plate 49 is in the shape of a right triangle on the side close to the positioning frame 41. The magnetic poles of the magnetic plate 48 and the magnetic coating on the surface of the slide rail 411 are the same and magnetically repel each other. The special-shaped rod 47 slides inside the rack rod 44 toward the direction of the magnetic plate 48 under the action of the magnetic force.

[0027] In actual use of this embodiment, when the battery cell falls toward the main base 32, the battery cell will first contact the dial ring 43. The gravitational potential energy of the battery cell falling downward will squeeze the dial ring 43, causing the dial ring 43 to rotate inside the slider 42. The blocking of the dial rings 43 on both sides during the battery's falling process can reduce the speed of the battery cell falling downward, reducing damage to the battery cell. When the dial ring 43 is squeezed and rotates, the dial ring 43 rotates and drives the gear rod 44 to rotate together through the transmission belt 45. After the gear rod 44 rotates, it will engage with the first rack 46 on the outer wall of the positioning frame 41, driving the slider 42 to slide upward inside the positioning frame 41 as a whole. The slider 42 slides upward once when a battery cell is dropped, so that the height of the slider 42 is always higher than the top battery cell during the process of battery cells being stacked upward, thereby preventing the stacked battery cells from being impacted and damaged when the dropped battery cells are dropped. During the upward sliding of the slider 42 inside the positioning frame 41, the second tooth plate 49 will slide in contact with the inclined surface of the second rack 410. When the slider 42 stops moving inside the positioning frame 41, the magnetic repulsion between the magnetic plate 48 and the surface coating of the slide rail 411 will cause the second tooth plate 49 to fit tightly with the second rack 410 and engage with each other, thereby preventing the slider 42 from falling after it stops moving upward. When the battery stacking is completed, the staff pushes the special-shaped rod 47 to one side of the second tooth plate 49, and the second tooth plate 49 and the second rack 410 are disengaged, so that the slider 42 can slide downward inside the positioning frame 41 and reset, facilitating the continuation of subsequent assembly work.

[0028] A rotating assembly 5 is provided inside the slider 42, and the rotating assembly 5 includes an injection tube 51 rotatably connected to the inside of the slider 42, a sleeve rack 52 is rotatably connected to the bottom of the slider 42, and the top of the sleeve rack 52 is sleeved on the outer wall of the injection tube 51, and the bottom of the slider 42 is rotatably connected to the first turntable 53, and the bottom of the first turntable 53 is eccentrically fixedly connected to the first round rod 54, and the first round rod 54 is slidably connected to the inside of the sleeve rack 52, and the bottom of the slider 42 is vertically slidably connected to the second round rod 55, and the top of the second round rod 55 is fixedly connected to the cross plate 56, and a third spring 57 is fixedly connected between the cross plate 56 and the bottom of the inner cavity of the slider 42, and the bottom of the outer wall of the second round rod 55 is fixedly connected to a protrusion 59, and the inner cavity of the first turntable 53 is provided with a threaded groove 58 adapted to the protrusion 59.

[0029] An end of the injection tube 51 away from the positioning frame 41 is externally connected to a glue injection pump. The outer walls of the shift ring 43 and the horizontal plate 56 are both provided with bevels. When the shift ring 43 rotates, the bevels squeeze the horizontal plate 56 downward.

[0030] When the second round rod 55 moves downward, the protrusion 59 slides inside the thread groove 58 of the first rotary disk 53, and the protrusion 59 slides inside the thread groove 58, causing the first rotary disk 53 to rotate. The rotation of the first rotary disk 53 drives the first round rod 54 at the bottom to rotate together. At this time, because the first round rod 54 is eccentrically arranged at the bottom of the first rotary disk 53 and slides inside the sleeve rack 52, the rotation of the first round rod 54 causes the sleeve rack 52 at the bottom of the slider 42 to swing left and right. The left and right swing of the sleeve rack 52 drives the injection tube 51 to swing left and right inside the slider 42, so that the injection tube 51 can evenly spray the conductive glue to the top of the battery cell, so that the staff does not need to apply glue to the battery cells one by one, thereby improving the assembly efficiency of the battery stack.

[0031] A vibration assembly 6 is provided above the base plate 1, and the vibration assembly 6 includes a fixed rod 61 fixedly connected to the upper surface of the base plate 1, and the fixed rod 61 is rotatably connected to the gear shaft 62 at one end away from the base plate 1, and the gear shaft 62 is fixedly connected to the second turntable 63 on the side away from the fixed rod 61, and the second turntable 63 is eccentrically fixedly connected to the third round rod 64 on the side away from the gear shaft 62, and the outer wall of the third round rod 64 is rotatably connected to a connecting piece 65, and the end of the connecting piece 65 away from the third round rod 64 is rotatably connected to the outer wall of the main base 32, and the top of the main base 32 is fixedly connected to a positioning plate 67, and the surface of the positioning plate 67 is slidably connected to a slide 66, and a fourth spring 68 is fixedly connected between the bottom of the slide 66 and the top of the base plate 1, and the bottom of the slide 66 is fixedly connected to a third gear plate 69 meshing with the gear shaft 62.

[0032] A pressure plate is installed on the top of the telescopic frame 2, and the bottom of the pressure plate is in contact with the top of the slide 66. The upper half of the third tooth plate 69 is a smooth surface, and the lower half of the third tooth plate 69 is provided with a rack.

[0033] When the present embodiment is actually used, when the battery cells are stacked and need to be pressed, the operator controls the pressure plate of the telescopic frame 2 to move downward. The downward movement of the pressure plate will push the slide 66 to slide downward on the outer wall of the positioning plate 67. After the slide 66 moves downward, the fourth spring 68 is squeezed and elastically contracts. The third tooth plate 69 moves downward together with the slide 66 and engages with the gear shaft 62. The gear shaft 62 rotates after engaging with the third tooth plate 69. The rotation of the gear shaft 62 drives the second turntable 63 and the third round rod 64 to rotate together. During the rotation, the third round rod 64 drives the main base 32 to move vertically back and forth above the bottom plate 1 through the transmission of the connecting piece 65. When the pressure plate of the telescopic frame 2 is pressed down, the main base 32 is rotated. Vibration can make the battery cells stacked on the main base 32 shake slightly together, so that the battery cells can fit together during the stacking process, avoiding the problem that individual battery cells cannot be laid flat due to friction with the side of the positioning frame 41, and the battery cells are unevenly stressed during the stacking process, thereby causing damage, thereby improving the yield rate of the battery cell stacking process. When the rack on the lower half of the third tooth plate 69 is engaged with the gear shaft 62, the vibration of the main base 32 loosens and flattens the stacked battery cells. At this time, the slide 66 continues to move downward, which makes the smooth surface of the upper half of the third tooth plate 69 fit with the gear shaft 62. The gear shaft 62 no longer engages and stops rotating, so that when the pressure plate contacts the battery cell, the battery cell remains in a stable state.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fuel cell stack auxiliary assembly device, comprising a base plate (1), a telescopic frame (2) and a distance adjustment component (3), characterized in that: The telescopic frame (2) is fixedly connected to the top of the base plate (1), and the distance adjustment component (3) is arranged above the base plate (1). The distance adjustment component (3) includes a positioning rod (31) fixedly connected to the top of the base plate (1). A main base (32) is slidably connected to the outer wall of the positioning rod (31) above the base plate (1), and a gear (33) is rotatably connected to the middle of the upper surface of the main base (32). The inner wall of the gear (33) is symmetrically provided with vertical grooves (34), and the inner wall of the gear (33) is provided with an annular groove (35) below the vertical groove (34). The inner wall of the gear (33) is provided with a ring groove (35). A sliding rod (36) is slidably connected, and a sliding tooth (37) is symmetrically fixedly connected to the outer wall of the sliding rod (36), and the sliding teeth (37) are all slidably connected to the inside of the vertical groove (34). A first spring (38) is fixedly connected between the sliding rod (36) and the base plate (1), and a slave base (310) is symmetrically slidably connected to the upper surface of the base plate (1), and a first tooth plate (39) is fixedly connected to the side close to the slave base (310), and the first tooth plate (39) is meshed with the gear (33). A second spring (311) is fixedly connected between the main base (32) and the slave base (310).

2. A fuel cell stack auxiliary assembly device according to claim 1, characterized in that: A deceleration assembly (4) is provided above the slave base (310), and the deceleration assembly (4) includes a positioning frame (41) fixedly connected to the upper surface of the slave base (310), a slider (42) is slidably connected inside the positioning frame (41), a dial ring (43) is rotatably connected inside the slider (42), a side of the slider (42) located outside the positioning frame (41) is rotatably connected to a gear rod (44), a transmission belt (45) is connected between the dial ring (43) and the gear rod (44), and a first rack (46) is provided on the outer wall of the positioning frame (41), and the rack rod (44) and the first rack ( 46) are engaged with each other, the gear rod (44) is movably connected to a special-shaped rod (47) inside, one end of the special-shaped rod (47) is fixedly connected to a magnetic plate (48), and the other end of the special-shaped rod (47) is fixedly connected to a second gear plate (49), the side wall of the positioning frame (41) is provided with a second gear rail (410), the second gear plate (49) is engaged with the second gear rail (410), the side wall of the positioning frame (41) is fixedly connected to a slide rail (411), the opposite surfaces of the magnetic plate (48) and the slide rail (411) are coated with a magnetic coating with the same magnetic poles, and the magnetic plate (48) is limitedly slidably connected to the slide rail (411).

3. A fuel cell stack auxiliary assembly device according to claim 2, characterized in that: A rotating assembly (5) is provided inside the slider (42), and the rotating assembly (5) includes an injection tube (51) rotatably connected to the inside of the slider (42). The bottom of the slider (42) is rotatably connected to a sleeve rack (52), and the top of the sleeve rack (52) is sleeved on the outer wall of the injection tube (51). The bottom of the slider (42) is rotatably connected to a first turntable (53), and the bottom of the first turntable (53) is eccentrically fixedly connected to a first round rod (54), and the first round rod (54) is slidably connected to the inside of the sleeve rack (52), the bottom of the slider (42) is vertically slidably connected to the second round rod (55), the top of the second round rod (55) is fixedly connected to the cross plate (56), a third spring (57) is fixedly connected between the cross plate (56) and the bottom of the inner cavity of the slider (42), the bottom of the outer wall of the second round rod (55) is fixedly connected to a protrusion (59), and the inner cavity of the first turntable (53) is provided with a threaded groove (58) adapted to the protrusion (59).

4. The fuel cell stack auxiliary assembly device according to claim 1, characterized in that: A vibration assembly (6) is provided above the base plate (1), and the vibration assembly (6) includes a fixed rod (61) fixedly connected to the upper surface of the base plate (1), and one end of the fixed rod (61) away from the base plate (1) is rotatably connected to a gear shaft (62), and a side of the gear shaft (62) away from the fixed rod (61) is fixedly connected to a second rotating disk (63), and a side of the second rotating disk (63) away from the gear shaft (62) is eccentrically fixedly connected to a third round rod (64), and the outer wall of the third round rod (64) is fixedly connected to the third round rod (64). A connecting member (65) is rotatably connected, and one end of the connecting member (65) away from the third round rod (64) is rotatably connected to the outer wall of the main base (32). The top of the main base (32) is fixedly connected to a positioning plate (67), and the surface of the positioning plate (67) is slidably connected to a slide (66). A fourth spring (68) is fixedly connected between the bottom of the slide (66) and the top of the base plate (1), and the bottom of the slide (66) is fixedly connected to a third tooth plate (69) meshing with the gear shaft (62).

5. The fuel cell stack auxiliary assembly device according to claim 1, characterized in that: The total depth of the gear (33) and the vertical groove (34) is equal to the height of the slide bar (36), and the depth of the annular groove (35) is equal to the height of the slide tooth (37).

6. The fuel cell stack auxiliary assembly device according to claim 2, characterized in that: The second rack (410) is in the shape of an inverted triangle, and the side of the second rack (49) close to the positioning frame (41) is in the shape of a regular triangle. The magnetic poles of the magnetic coatings on the surfaces of the magnetic plate (48) and the slide rail (411) are the same and magnetically repel each other. The special-shaped rod (47) slides inside the rack rod (44) in the direction of the magnetic plate (48) under the action of magnetic force.

7. The fuel cell stack auxiliary assembly device according to claim 3, characterized in that: An end of the injection pipe (51) away from the positioning frame (41) is externally connected to a glue injection pump. The outer walls of the shift ring (43) and the horizontal plate (56) are both provided with bevels. When the shift ring (43) rotates, the bevels squeeze the horizontal plate (56) downward.

8. The fuel cell stack auxiliary assembly device according to claim 4, characterized in that: A pressure plate is installed on the top of the telescopic frame (2), and the bottom of the pressure plate is in contact with the top of the slide (66). The upper half of the third tooth plate (69) is a smooth surface, and the lower half of the third tooth plate (69) is provided with a rack.

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