Quick assembly platform for electric pile

Abstract

The utility model discloses a quick assembly platform for a galvanic pile, which relates to the technical field of galvanic pile assembly and comprises a profiling jig, the profiling jig is fixed on an operation platform, and a plurality of nut positioning holes are formed in the profiling jig; the air cylinder bracket is fixed on the operation platform; the air cylinder is fixed to the air cylinder support and electrically connected with the controller, and a piston rod of the air cylinder extends downwards and is fixedly provided with a flat plate; and the multiple electric wrenches are all fixed to the flat plate, the multiple electric wrenches and the multiple nut positioning holes are arranged in a one-to-one correspondence mode, and the multiple electric wrenches are all electrically connected with the controller. According to the utility model, a plurality of tensioning screws and locking nuts on the electric pile can be assembled at the same time, so that the assembly efficiency of the electric pile is greatly improved. The positioning guide column plays a role in guiding the flat plate, it is guaranteed that the flat plate is always kept in a horizontal state and moves up and down along the positioning guide column, and therefore it can be guaranteed that the multiple electric wrenches are accurately arranged on the locking nut in a sleeving mode.

Description

Technical Field

[0001] The utility model relates to the technical field of stack assembly, in particular to a platform for rapid stack assembly. Background Art

[0002] As a clean and efficient energy form, hydrogen energy has received extensive attention. The development of hydrogen energy technology is rapid, with continuous breakthroughs in key core technologies and the gradual maturity of products. However, the development of the hydrogen energy industry still faces some challenges. First, the challenges that need to be overcome for the large-scale industrial application of hydrogen energy include improving industry standards and specifications, building a complete industrial chain, establishing a long-distance and low-cost hydrogen energy transportation system, and reducing the production cost of green hydrogen. In addition, although hydrogen energy technology is constantly progressing, the selling prices of most products in the hydrogen energy field are still relatively high, and the inconvenience of hydrogen refueling also limits its market acceptance.

[0003] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. An electrolytic cell for electrolyzing pure water is the reverse reaction of a hydrogen fuel cell. The electrolytic cell electrolyzes water into hydrogen and oxygen through electrical energy. Both the hydrogen fuel cell and the electrolytic cell are called stacks, and stack assembly includes manual assembly and mechanized automatic assembly.

[0004] In terms of stack assembly, a Chinese utility model patent with the patent number 2021206490508 discloses a stack assembly device, including: a stacking mechanism, a pressing mechanism, and a turntable mechanism; the stacking mechanism is used for stacking stack components; the pressing mechanism is used for pressing the stack components; the stacking mechanism and the pressing mechanism are arranged at intervals around the turntable mechanism. The turntable mechanism transports the stack components to switch between the stacking mechanism and the pressing mechanism. The layout of the stack assembly device is compact, improving the switching efficiency of the assembly stations of the stack components.

[0005] A Chinese utility model patent with the patent number 2020231020483 discloses a stack assembly mechanism, including a stacking machine, a flipping machine, an assembly press, and a conveying device arranged on one side of the assembly press. The stacking machine and the flipping machine are both arranged on one side of the conveying device, and the conveying device is a two-way conveying device. When stack assembly is required, first stack the materials at the position of the stacking machine, then through the forward movement of the conveying device, transport the materials to the assembly press. After assembly, transport the materials to the flipping machine for flipping, then through the reverse movement of the conveying device, transport the materials to the position of the stacking machine, and finally take out the processed stack.

[0006] The Chinese invention patent with the patent number 2018101334775 discloses a stack and its assembly tooling. The assembly tooling includes a press. A lower platform pressing plate is arranged on the lower working surface of the press, and an upper platform pressing plate is arranged on the upper working surface of the press; both the upper platform pressing plate and the lower platform pressing plate are adapted to the outer end faces of the corresponding side cross beams and connecting plates. A positioning sleeve is fixedly arranged on the lower platform pressing plate. The positioning sleeve corresponds to the position of a tensioning screw rod, and the inner diameter of the positioning sleeve is adapted to a locking nut.

[0007] The Chinese utility model patent with the patent number 2019215774450 discloses an automatic assembly production line for a fuel cell stack. The automatic assembly production line for a fuel cell stack includes: a component feeding device, a bipolar plate airtightness inspection device, a membrane electrode airtightness inspection device, a stack assembly and welding assembly device, a stack airtightness inspection device, and an automatic blanking device. It solves the problems of time-consuming and laborious and low assembly efficiency in the existing synthetic assembly process of a fuel cell stack.

[0008] However, the market shipment volume of hydrogen fuel cells and electrolyzers is still relatively small. For stacks with batch shipments, it is suitable to use an automatic assembly production line for production. For stacks with small shipments, manual assembly is mainly used. In order to improve the stack sealing and structural stability of hydrogen fuel cells and electrolyzers, the two end plates of the stack are pressed against the stack through a locking nut cooperating with a tensioning screw rod. When manually assembling multiple tensioning bolts and locking nuts of the stack, the operation is cumbersome and time-consuming.

[0009] Therefore, stacks in the hydrogen energy field require a simple and fast assembly platform to cooperate with manual assembly to improve the assembly efficiency. Summary of the Invention

[0010] Based on this, in view of the technical problems of cumbersome stack assembly procedures and low assembly efficiency, it is necessary to provide a fast stack assembly platform.

[0011] To achieve the above object, the present utility model provides the following technical solutions:

[0012] A fast stack assembly platform, which includes a box body. A controller is arranged inside the box body, and an operation platform is arranged on the top of the box body. It further includes:

[0013] A profiling jig, which is fixed on the operation platform. A plurality of nut positioning holes are opened on the profiling jig;

[0014] A cylinder bracket, which is fixed on the operation platform;

[0015] A cylinder, which is fixed on the cylinder bracket. The cylinder is electrically connected to the controller. The piston rod of the cylinder extends downward and is fixed with a flat plate;

[0016] Multiple electric wrenches, all of the multiple electric wrenches are fixed on a flat plate, the multiple electric wrenches and multiple nut positioning holes are arranged in a one-to-one correspondence, and all of the multiple electric wrenches are electrically connected to a controller.

[0017] By adopting the above technical solution, the fuel cell stack is assembled by cooperating a locking nut with a tensioning screw. One end of the tensioning screw is self-equipped with a nut. Before assembling the fuel cell stack, the nuts of multiple tensioning screws are respectively placed in multiple nut positioning holes of a profiling jig. The nut of the tensioning screw is a hexagonal nut, and the shape of the nut positioning hole is the same as the shape of the nut of the tensioning screw, so that the tensioning screw placed in the nut positioning hole does not rotate. Then the fuel cell stack is passed through multiple tensioning screws, and the locking nut is placed at the other end of the tensioning screw. The controller controls the piston rod of the air cylinder to drive the flat plate to move downward, so that multiple electric wrenches are respectively clamped outside multiple locking nuts. The inner diameter of the electric wrench is adapted to the locking nut, and multiple electric wrenches rotate to drive multiple locking nuts to be locked on the tensioning screw respectively, completing the assembly of the fuel cell stack.

[0018] Preferably, positioning and guiding columns are vertically installed on both the left and right sides of the profiling jig. Guide holes are opened on both the left and right sides of the flat plate. The positioning and guiding columns pass through the guide holes, and the flat plate is arranged to slide up and down along the positioning and guiding columns.

[0019] By adopting the above technical solution, the positioning and guiding columns play a guiding role for the flat plate, ensuring the horizontal state of the flat plate and moving it up and down along the positioning and guiding columns.

[0020] Preferably, an upper limit guide sleeve and a lower limit guide sleeve are fixed on each positioning and guiding column. The flat plate is located between the upper limit guide sleeve and the lower limit guide sleeve, and the upper limit guide sleeve and the lower limit guide sleeve are respectively used to limit the up and down stroke of the flat plate.

[0021] By adopting the above technical solution, the upper limit guide sleeve and the lower limit guide sleeve limit the up and down stroke of the flat plate. When the flat plate contacts the lower limit guide sleeve, the electric wrench just sleeves outside the locking nut, which is convenient for tightening the locking nut. When the flat plate contacts the upper limit guide sleeve, the electric wrench keeps a distance from the air cylinder, avoiding the collision between the electric wrench and the air cylinder.

[0022] Preferably, at least two positioning rods are vertically installed on the operation platform.

[0023] By adopting the above technical solution, in order to improve the assembly efficiency of the fuel cell stack, positioning holes are opened on each layer such as the end plate, bipolar plate, and diffusion layer of the fuel cell stack. When assembling the fuel cell stack, first, the positioning holes of each layer of the fuel cell stack are sequentially sleeved on at least two positioning rods to complete the pre-assembly of the fuel cell stack, and then the fuel cell stack is taken off the positioning rods and sleeved on the tensioning screw to complete the assembly of the tensioning screw and the locking nut.

[0024] Preferably, a start-stop switch is provided on the operation platform, and the start-stop switch is electrically connected to the controller.

[0025] By adopting the above technical solution, after the operator installs the fuel cell stack on the tensioning screw and screws the lock nut onto the tensioning screw, the operator presses the start-stop switch, and the controller controls the cylinder and multiple electric wrenches to work, completing the work of simultaneously screwing multiple lock nuts.

[0026] Preferably, a parts box is provided on the operation platform.

[0027] By adopting the above technical solution, the parts box is used to hold the parts for fuel cell stack assembly, improving the work efficiency of the operator.

[0028] Preferably, a time-delay relay is provided on the box body, and the time-delay relay is electrically connected to the cylinder.

[0029] By adopting the above technical solution, the time-delay relay is used to control the telescopic time of the piston rod of the cylinder, preventing the flat plate and the electric wrench from pressing and damaging the fuel cell stack.

[0030] Preferably, the cylinder bracket includes a vertically connected vertical plate and a horizontal plate. The lower end of the vertical plate is fixed on the operation platform, the upper end of the vertical plate is connected to one end of the horizontal plate, and the cylinder is fixed on the lower surface of the horizontal plate.

[0031] By adopting the above technical solution, the vertical plate can adjust the height of the cylinder, and the horizontal plate is used to fix the cylinder and make the cylinder located directly above the profiling fixture.

[0032] Compared with the related technology, the fuel cell stack rapid assembly platform provided by the present utility model has the following beneficial effects:

[0033] 1. By cooperating with the profiling fixture, the cylinder and multiple electric wrenches, the present utility model can simultaneously complete the assembly work of multiple tensioning screws and lock nuts on the fuel cell stack, greatly improving the fuel cell stack assembly efficiency.

[0034] 2. The positioning and guiding columns play a guiding role for the flat plate, ensuring that the flat plate always remains horizontal and moves up and down along the positioning and guiding columns, so as to ensure that multiple electric wrenches are accurately sleeved on the lock nuts.

[0035] 3. At least two positioning rods are vertically installed on the operation flat plate, and positioning holes are opened on each layer structure of the fuel cell stack. The pre-assembly of the fuel cell stack is completed through the cooperation of the positioning rods and the positioning holes, improving the fuel cell stack assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 For the three-dimensional view of the fuel cell stack rapid assembly platform Figure 1 ;

[0037] Figure 2 For the three-dimensional view of the fuel cell stack rapid assembly platform Figure 2 ;

[0038] Figure 3 For the three-dimensional view of the fuel cell stack rapid assembly platform Figure 3 ;

[0039] Figure 4 For the front view of the fuel cell stack rapid assembly platform;

[0040] Figure 5 For the side view of the fuel cell stack rapid assembly platform.

[0041] Reference numerals: 1, box body; 11, operation platform; 12, start-stop switch; 13, parts box; 14, time delay relay; 2, profiling jig; 21, nut positioning hole; 3, cylinder bracket; 31, vertical plate; 32, horizontal plate; 4, cylinder; 5, flat plate; 6, electric wrench; 7, positioning guide post; 71, upper limit guide sleeve; 72, lower limit guide sleeve; 8, positioning rod; 9, fuel cell stack; 91, tensioning screw rod; 92, locking nut. Detailed implementation manners

[0042] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following will further elaborate on the present utility model in detail in conjunction with the drawings and embodiments.

[0043] It should be noted that in the description of the present utility model, terms indicating directions or positional relationships such as "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model

[0044] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] Please refer to Figures 1 to 5 As shown, the fuel cell stack rapid assembly platform provided by the embodiment of the present utility model includes a box body 1, a profiling jig 2, a cylinder bracket 3, a cylinder 4 and a plurality of electric wrenches 6. Among them, a controller (not shown in the figure) for control is provided inside the box body 1, and an operation platform 11 is provided on the top of the box body 1.

[0046] The stack 9 is pressed by a locking nut 92 in cooperation with a tension screw 91. The stack 9 is provided with screw holes for the tension screw 91 to pass through. One end of the tension screw 91 is self - equipped with a hexagonal nut. The profiling jig 2 is fixed at the middle position of the upper surface of the operation platform 11. A plurality of nut positioning holes 21 are opened on the profiling jig 2. The position distribution of the plurality of nut positioning holes 21 can make the plurality of nut positioning holes 21 correspond to the plurality of screw holes on the stack 9 one by one. The shapes of the plurality of nut positioning holes 21 are the same as the shape of the hexagonal nut self - equipped on the tension screw 91. The hexagonal nut on the tension screw 91 is arranged in the nut positioning hole 21, and the nut positioning hole 21 can limit the rotation of the tension screw 91.

[0047] The cylinder bracket 3 is fixed on the operation platform 11. The cylinder bracket 3 is located on one side of the profiling jig 2. The cylinder block of the cylinder 4 is fixed on the cylinder bracket 3. The cylinder 4 is electrically connected to the controller. The cylinder 4 is controlled by the controller. The piston rod of the cylinder 4 extends downward, and a flat plate 5 is fixed at the lower end of the piston rod. The telescopic movement of the piston rod drives the flat plate 5 to move up and down synchronously.

[0048] A plurality of electric wrenches 6 are all fixed on the flat plate 5. Each of the plurality of electric wrenches 6 has a sleeve adapted to the locking nut 92. The inner diameter of the sleeve is the same as the shape of the locking nut 92. The position distribution of the plurality of electric wrenches 6 can make the plurality of electric wrenches 6 correspond to the plurality of nut positioning holes 21 one by one, and each of the plurality of electric wrenches 6 is electrically connected to the controller.

[0049] Compared with the prior art, for the fuel cell stack rapid assembly platform provided by the present utility model, during application, the hexagonal nuts of the plurality of tension screws 91 are respectively inserted into the plurality of nut positioning holes 21 on the profiling jig 2. After arranging the multi - layer structure of the stack 9, the plurality of screw holes on the stack 9 are respectively sleeved on the plurality of tension screws 91. Next, to lock the locking nut 92 with the tension screw 91, the stack 9 can be pressed. The operator initially screws the locking nut 92 onto the tension screw 91, and controls the cylinder 4 to start through the controller. The piston rod of the cylinder 4 extends downward until the sleeves of the plurality of electric wrenches 6 are respectively sleeved on the locking nuts 92. At this time, the plurality of electric wrenches 6 start, and the plurality of locking nuts 92 are tightened on the tension screws 91 by using the sleeves of the plurality of electric wrenches 6. Then, the plurality of electric wrenches 6 all stop working, and the piston rod of the cylinder 4 contracts, driving the flat plate 5 and the plurality of electric wrenches 6 to reset upward, and the assembly of the stack 9 is completed. Thus, it can be seen that the above - mentioned fuel cell stack 9 rapid assembly platform has a simple structure, is easy to manufacture, has a simple operation during use, is easy to assemble, and helps to improve the assembly efficiency of the stack 9.

[0050] Further, positioning and guiding columns 7 can be installed on the left and right sides of the profiling jig 2. The positioning and guiding columns 7 are arranged vertically. Guide holes adapted to the positioning and guiding columns 7 are provided on the left and right sides of the flat plate 5. The positioning and guiding columns 7 are passed through the guide holes. The positioning and guiding columns 7 play a guiding role for the flat plate 5, ensuring that the flat plate 5 always remains in a horizontal state and moves up and down along the positioning and guiding columns 7, so as to ensure that multiple electric wrenches 6 are accurately sleeved on the locking nuts 92.

[0051] In addition, an upper limit guide sleeve 71 and a lower limit guide sleeve 72 are fixed on each positioning and guiding column 7. The flat plate 5 is located between the upper limit guide sleeve 71 and the lower limit guide sleeve 72. The upper limit guide sleeve 71 and the lower limit guide sleeve 72 are respectively used to limit the up and down travel of the flat plate 5. When the flat plate 5 contacts the lower limit guide sleeve 72, the electric wrench 6 just sleeves outside the locking nut 92, which is convenient for tightening the locking nut 92. When the flat plate 5 contacts the upper limit guide sleeve 71, the electric wrench 6 keeps a distance from the cylinder 4 to avoid collision between the electric wrench 6 and the cylinder 4.

[0052] Further, a parts box 13 is provided on the operation platform 11, which is used to hold the parts for assembling the battery stack 9, saving the time for the operator to pick up the parts.

[0053] To further optimize the above embodiment, a time delay relay 14 is provided on the box body 1. The time delay relay 14 is electrically connected to the cylinder 4 and is used to control the telescopic time of the piston rod of the cylinder 4 to prevent the flat plate 5 and the electric wrench 6 from pressing and damaging the battery stack 9.

[0054] In addition, the cylinder bracket 3 includes a vertically arranged plate 31 and a horizontally arranged plate 32 which are integrally connected. The lower end of the vertically arranged plate 31 is fixed on the operation platform 11. The upper end of the vertically arranged plate 31 is connected to one end of the horizontally arranged plate 32. The cylinder bracket 3 is generally in a "Г" shape, and the cylinder 4 is fixed on the lower surface of the horizontally arranged plate 32.

[0055] It should be noted that in this article, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to this process, method, article or device.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid stack assembly platform, comprising a box (1), a controller disposed inside the box (1), and an operating platform (11) disposed on the top of the box (1), characterized in that: Also includes: A profiling jig (2), wherein the profiling jig (2) is fixed on the operating platform (11), and a plurality of nut positioning holes (21) are formed on the profiling jig (2); A cylinder support (3), wherein the cylinder support (3) is fixed on the operating platform (11); A cylinder (4), wherein the cylinder (4) is fixed on a cylinder support (3), the cylinder (4) is electrically connected to a controller, and a piston rod of the cylinder (4) extends downward and is fixed with a plate (5); A plurality of electric wrenches (6) are fixed on a flat plate (5), the plurality of electric wrenches (6) and the plurality of nut positioning holes (21) are arranged in a one-to-one correspondence, and the plurality of electric wrenches (6) are electrically connected to a controller.

2. The rapid assembly platform for battery stack according to claim 1 is characterized in that: Positioning guide columns (7) are vertically mounted on both the left and right sides of the profiling jig (2), and guide holes are opened on the left and right sides of the plate (5), through which the positioning guide columns (7) pass, and the plate (5) is arranged to slide up and down along the positioning guide columns (7).

3. The rapid assembly platform for battery stack according to claim 2 is characterized in that: An upper limit guide sleeve (71) and a lower limit guide sleeve (72) are fixed on each of the positioning guide columns (7), and the plate (5) is located between the upper limit guide sleeve (71) and the lower limit guide sleeve (72). The upper limit guide sleeve (71) and the lower limit guide sleeve (72) are respectively used to limit the up and down travel of the plate (5).

4. The rapid assembly platform for battery stack according to claim 1 is characterized in that: At least two positioning rods (8) are vertically mounted on the operating platform (11).

5. The rapid assembly platform for battery stack according to claim 1 is characterized in that: The operating platform (11) is provided with a start / stop switch (12), and the start / stop switch (12) is electrically connected to the controller.

6. The rapid assembly platform for battery stack according to claim 1 is characterized by: The operating platform (11) is provided with a parts box (13).

7. The rapid assembly platform for battery stack according to claim 1 is characterized by: The box body (1) is provided with a time delay relay (14), and the time delay relay (14) is electrically connected to the cylinder (4).

8. The rapid assembly platform for battery stack according to claim 1 is characterized by: The cylinder support (3) comprises a vertical plate (31) and a horizontal plate (32) connected in an integral manner, the lower end of the vertical plate (31) is fixed on the operating platform (11), the upper end of the vertical plate (31) is connected to one end of the horizontal plate (32), and the cylinder (4) is fixed on the lower surface of the horizontal plate (32).

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