A flip device for assembling a flow battery stack

Abstract

This invention discloses a flipping device for assembling flow battery stacks, comprising a support assembly, a drive assembly mounted on the support assembly, a flipping support assembly, a flipping fixture table, and a fixing fixture mounted on the flipping fixture table. The drive assembly transmits power to the flipping fixture table via the flipping support assembly. The fixing fixture clamps the various layers of components in the battery stack. The drive assembly includes a geared motor and a shaft connector, with the shaft connector installed between the geared motor and the flipping support assembly. Two sets of flipping support assemblies are provided, each including a bearing with a mounting seat, a connecting shaft passing through the inner ring of the bearing with the mounting seat, a connecting seat fixed to the connecting shaft, and a fixing unit fixed to the connecting seat. The fixing unit is securely connected to the flipping fixture table. This invention integrates semi-finished product assembly and multi-component stacking onto a single table, reducing production costs. The use of a fixing fixture and table for flipping reduces the handling of the battery stack, making the device production more stable and reliable.

Description

Technical Field

[0001] This invention relates to the field of flow battery manufacturing technology, and more specifically to a flipping device for assembling flow battery stacks. Background Technology

[0002] In a vanadium redox flow battery system, the core components include an electrochemical reactor stack and positive and negative electrode electrolyte storage tanks. As the core component of the flow battery, the flow battery stack needs to be made into a semi-finished component first through bipolar plates, separators, electrodes, etc., and then multiple semi-finished components are stacked and assembled layer by layer in a preset order.

[0003] In existing technologies, battery stack assembly needs to be completed on multiple workbenches. First, multiple workbenches are set up according to the different semi-finished components of the battery stack to complete the preliminary assembly of individual semi-finished components. Then, the preliminarily assembled semi-finished components are transported manually or mechanically to other workbenches for stacking layer by layer. This assembly method not only requires multiple workbenches, but also requires multiple workers to assemble on corresponding tooling tables, resulting in high production costs. In addition, since the semi-finished components are mostly thin plate structures, and some components have flexible diaphragms or sealing strips on their surfaces, they are prone to structural displacement due to collisions, vibrations, or uneven clamping forces during multiple handling between multiple workbenches. This leads to a decrease in the alignment accuracy of each component during subsequent stacking, directly increasing the risk of electrolyte leakage and even causing battery performance failure.

[0004] Therefore, it is necessary to provide a new flipping device for assembling flow battery stacks. Summary of the Invention

[0005] In view of this, the present invention provides a flipping device for assembling flow battery stacks. By cooperating with the flipping tooling table, the flipping support component, and the drive component, the assembly of semi-finished products and the stacking of multiple components are integrated on a single table, which reduces production costs. The use of fixed clamps and the table for flipping reduces the handling of the stacks, making the device production more stable and reliable.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: a flipping device for assembling a flow battery stack is provided, comprising: a support assembly, a drive assembly disposed on the support assembly, a flipping support assembly, a flipping fixture table fixedly connected to the flipping support assembly, and a fixing fixture disposed on the flipping fixture table. The support assembly carries the drive assembly, the flipping support assembly, and the flipping fixture table. The drive assembly transmits power to the flipping fixture table through the flipping support assembly. The fixing fixture clamps each layer of the stack. The drive assembly includes a geared motor and a shaft connector. The shaft connector is installed between the geared motor and the flipping support assembly. The flipping support assembly is provided in two sets. The flipping support assembly includes a bearing with a seat, a connecting shaft passing through the inner ring of the bearing with a seat, a connecting seat fixed to the connecting shaft, and a fixing unit fixed to the connecting seat. The fixing unit is fastened to the flipping fixture table.

[0007] Furthermore, the bracket assembly includes a base, two first support frames and a second support frame disposed on the base, support feet fixed at the four corners of the bottom of the base, and casters located on one side of the support feet fixed at the four corners of the bottom of the base.

[0008] Furthermore, a first support block is provided on the top of the first support frame, and the flip support assembly is fixed on the first support block; a second support block is provided on the top of the second support frame, and the drive assembly is fixed on the second support block.

[0009] Furthermore, the mounted bearing includes a rolling bearing and a bearing housing. The bearing housing is fixed to the first support block by bolts. The connecting seat is provided with a stop and a lubricating plate on the side near the connecting shaft. The lubricating plate is located between the mounted bearing and the connecting shaft.

[0010] Furthermore, the fixing unit includes a connector, a first clamping member and a second clamping member fixed to the connector, a weight reduction hole is provided in the center of the connector, the first clamping member and the second clamping member are arranged in parallel, and a clamping gap is left between the first clamping member and the second clamping member.

[0011] Furthermore, multiple fixing clamps are provided, and the fixing clamps are installed on the mounting holes around the flip tooling table.

[0012] Furthermore, the fixing fixture includes a base, a linkage transmission component disposed on the base, a pressure head disposed on the linkage transmission component, and an operating handle.

[0013] Furthermore, the base is provided with mounting holes, and the base is fixed to the mounting holes on the flip tooling table by bolts. The bottom of the pressure head is provided with a rubber layer.

[0014] Furthermore, the flipping device also includes a displacement sensor assembly located on one side of the flipping support assembly. The displacement sensor assembly includes a sensor lever, a grating bracket, and an infrared sensor fixed on the grating bracket.

[0015] Furthermore, a connecting plug is fixed to one end of the connecting shaft of the flip support assembly, and the sensor lever is fixed to the connecting plug by a fixing bolt. The sensor lever can rotate synchronously with the connecting shaft. The grating bracket has an arc-shaped slot, and two infrared sensors are provided, located at the two ends of the arc-shaped slot respectively. The infrared sensors detect the displacement change of the sensor lever.

[0016] The beneficial effects of the present invention are as follows: The flipping device for assembling a flow battery stack of the present invention includes a support assembly, a drive assembly disposed on the support assembly, a flipping support assembly, a flipping fixture table fixedly connected to the flipping support assembly, and a fixing fixture disposed on the flipping fixture table. The support assembly carries the drive assembly, the flipping support assembly, and the flipping fixture table. The drive assembly transmits power to the flipping fixture table through the flipping support assembly. The fixing fixture clamps each layer of the stack. The drive assembly includes a geared motor and a shaft connector. The shaft connector is installed between the geared motor and the flipping support assembly. The flipping support assembly is provided in two sets. The flipping support assembly includes a bearing with a seat, a connecting shaft passing through the inner ring of the bearing with a seat, a connecting seat fixed to the connecting shaft, and a fixing unit fixed to the connecting seat. The fixing unit is fastened to the flipping fixture table. The present invention relates to a flipping device for assembling flow battery stacks. The flipping fixture table, flipping support component, and drive component work together to integrate the assembly of semi-finished stacks and the stacking of multiple components onto a single table, eliminating the need for multiple dedicated tables, reducing hardware procurement and site occupation, and reducing labor and management costs by eliminating the need for multiple workers to be on duty. By clamping the components of each layer of the stack with fixing fixtures, and combined with the flipping action of the flipping fixture table with the flipping support component, the handling of semi-finished components across the table is reduced, improving stacking alignment accuracy and reducing the risk of electrolyte leakage. The geared motor in the drive component can provide continuous and sufficient flipping power to ensure positional stability during the flipping process. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the flipping device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the support assembly provided in an embodiment of the present invention; Figure 3 This is an exploded view of the flip tooling table and the flip tooling table provided in the embodiment of the present invention; Figure 4 This is a partial structural diagram of the driving component and the flipping support component (excluding the fixing unit) provided in an embodiment of the present invention; Figure 5 yes Figure 4 Exploded view of the drive assembly and the flip support assembly (excluding the fixing unit); Figure 6 This is a partial structural diagram of the fixing unit and the flipping tooling table provided in an embodiment of the present invention; Figure 7 yes Figure 6 Exploded view of the fixed unit and the flipping tooling table in the diagram; Figure 8 This is a schematic diagram of the structure of the fixing unit provided in an embodiment of the present invention; Figure 9 This is an exploded view of the fixed unit provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the flip-over tooling table provided in an embodiment of the present invention; Figure 11 This is a structural schematic diagram of the flip-top tooling table provided in an embodiment of the present invention from another perspective; Figure 12 This is a schematic diagram of the structure of the fixing clamp provided in an embodiment of the present invention; Figure 13 This is an exploded view of the flip support assembly and displacement sensor assembly provided in an embodiment of the present invention.

[0019] The component names and their numbers in the diagram are as follows: Tilting device 100; Support assembly 1, base 11, support foot 111, fender 112, first support frame 12, first support block 121, second support frame 13, second support block 131; Drive assembly 2, geared motor 21, shaft connector 22; The flip support assembly 3 includes a bearing 31 with a seat, a connecting shaft 32, a connecting seat 33, a stop part 331, a fixing unit 34, a connecting piece 341, a first clamping piece 342, a second clamping piece 343, and a lubricating plate 35. The tooling table 4 is flipped, the fixing groove 41 is fixed, the limiting groove 42 is limited, the first positioning groove 421 is second positioning groove 422 is test hole 423 is observation port 43 is mounting hole 44. Fixed clamp 5, base 51, connecting rod transmission component 52, pressure head 53, operating handle 54; Displacement sensor assembly 6, sensor lever 61, grating bracket 62, arc-shaped slot 621, infrared sensor 63, connecting plug 64, fixing bolt 65. Detailed Implementation

[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0021] It should be noted that when a component is referred to as "connected to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0024] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, a particular feature, structure, or characteristic may be combined in any suitable manner.

[0025] The present invention will now describe the flipping device 100 for assembling a flow battery stack. The flow battery stack is assembled from multiple semi-finished components. During the assembly of the flow battery stack, the semi-finished components need to be initially assembled, and then the multiple semi-finished components are stacked and assembled in a predetermined order. By setting the flipping device 100, the semi-finished components can be initially assembled step by step on one end of the platform. After the semi-finished components are initially assembled, they are flipped and stacked again on one end of the platform until the flow battery stack is assembled. There is no need to transfer semi-finished products between multiple platforms, avoiding structural displacement of components due to handling during stacking and ensuring the accuracy of the stacking order.

[0026] like Figure 1 As shown, this embodiment provides a flipping device 100 for assembling flow battery stacks, including a support assembly 1, a drive assembly 2 mounted on the support assembly 1, a flipping support assembly 3, a flipping fixture table 4 fixedly connected to the flipping support assembly 3, and a fixing clamp 5 mounted on the flipping fixture table 4. The support assembly 1 supports the drive assembly 2, the flipping support assembly 3, and the flipping fixture table 4, providing an installation base. The drive assembly 2 provides flipping power, which is transmitted to the flipping fixture table 4 via the flipping support assembly 3, thereby driving the flipping fixture table 4 to achieve a flipping action, thus adjusting the orientation of the stack assembly working surface to adapt to the assembly requirements of different stack semi-finished components. The flipping support assembly 3 connects the drive assembly 2 and the flipping fixture table 4, thereby supporting the flipping fixture table 4 and transmitting power. The flipping fixture table 4 provides an assembly working surface for the stack. The fixing clamp 5 quickly clamps the various layers of the stack components, preventing displacement caused by flipping or operation, and ensuring assembly accuracy.

[0027] In some of these embodiments, such as Figure 2As shown, the support assembly 1 includes a base 11, a first support frame 12 and a second support frame 13 mounted on the base 11. The base 11 is generally a square frame, formed by welding square tubes into a cuboid frame, serving as the main skeleton of the bottom and providing bottom support. Four support feet 111 are fixed to the bottom of the base 11, located at the four corners of the bottom of the base 11. Four casters 112 are also fixed to the bottom of the base 11, located at the four corners of the bottom of the base 11, and located to one side of the support feet 111. The casters 112 can be folded at an angle, allowing the entire flipping device 100 to be moved by flipping them. Two first support frames 12 are provided, located on both sides of the base 11. A first support block 121 is provided on the top of the first support frame 12, and the flipping support assembly 3 is fixed to the first support block 121. A second support frame 13 is provided, which is located on one side of the first support frame 12 and on the side of the base 11. A second support block 131 is provided on the top of the second support frame 13, and the drive assembly 2 is fixed on the second support block 131.

[0028] In some of these embodiments, such as Figure 4 As shown, the drive assembly 2 is fixed on the second support frame 13. The drive assembly 2 includes a geared motor 21 and a shaft connector 22. The geared motor 21 is fixed to the second support block 131 on the top of the second support frame 13 by bolts. The geared motor 21 includes a motor body and a reducer. The geared motor 21 converts electrical energy into mechanical energy, and the reducer reduces the speed and increases the output torque, thereby reducing intermediate power transmission losses and improving power transmission efficiency. This provides continuous and stable power for the flipping action of the flipping fixture table 4, ensuring the stability and reliability of power output and preventing loss of control due to insufficient power or speed fluctuations. Figure 5 As shown, the shaft connector 22 has a ring structure and a connection hole adapted to the shaft diameter. It is installed between the geared motor 21 and the flip support assembly 3 to realize the torque transmission of the geared motor 21. This allows the power of the geared motor 21 to be effectively transmitted to the flip support assembly 3 and the flip tooling table 4, thereby driving the flip tooling table 4 to rotate. The shaft connector 22 can reduce vibration and impact during power transmission, ensure the continuity and stability of torque transmission, and make the flipping action smoother.

[0029] In some of these embodiments, such as Figure 5As shown, two sets of flip support assemblies 3 are provided, each fixed on the first support frame 12 of the flip support assembly 3, and the flip support assembly 3 is connected to the drive assembly 2. The flip support assembly 3 includes a seated bearing 31, a connecting shaft 32 passing through the seated bearing 31, a connecting seat 33 fixed to the connecting shaft 32, and a fixing unit 34. The seated bearing 31 is fixed to the first support block 121 on the top of the first support frame 12 by bolts. The seated bearing 31 includes a rolling bearing and a bearing seat. The rolling bearing is used to realize the rotation function, and the bearing seat is connected and fixed to the first support block 121 by bolts. The seated bearing 31 is used to support the connecting shaft 32, reduce the rotational friction of the connecting shaft 32, so that the connecting shaft 32 can rotate smoothly and ensure smooth and stable flipping action. The connecting shaft 32 of the flip support assembly 3 near the drive assembly 2 passes through the inner ring of the seated bearing 31. One end of the connecting shaft 32 is connected to the connecting seat 33, and the other end is connected to the shaft connector 22. The connecting shaft 32 is used to transmit the torque of the drive assembly 2, driving the connecting seat 33 and the flipping fixture table 4 to rotate. Another set of flipping support components 3 has a connecting shaft 32 that passes through the inner ring of the bearing 31. One end of the connecting shaft 32 is connected to the connecting seat 33, and the other end is connected to the displacement sensor assembly 6. Together with the set of flipping support components 3 near the drive assembly 2, they drive the connecting seat 33 and the flipping fixture table 4 to rotate. The connecting seat 33 is fixed to one end of the connecting shaft 32, and a stop 331 is provided on the side of the connecting seat 33 near the connecting shaft 32. The connecting seat 33 is also fixedly connected to the fixing unit 34. The connecting seat 33 is used to transmit the torque of the connecting shaft 32, driving the flipping fixture table 4 to flip, and axially limiting the connection between the connecting shaft 32 and the bearing 31 through the stop 331. The connecting seat 33 adapts to the connection between the connecting shaft 32 and the flipping fixture table 4, ensuring effective power transmission, and axially limiting the connecting shaft 32 through the stop 331 to prevent it from moving, thus improving the overall stability of the flipping structure. A lubricating plate 35 is also provided on the side of the connecting seat 33 near the connecting shaft 32. The lubricating plate 35 forms a lubrication interface between the bearing 31 and the connecting shaft 32, reducing the frictional resistance between them. This makes the rotation of the connecting seat 33 by the connecting shaft 32 smoother, while also reducing the wear between components, improving the operational stability and service life of the tilting support assembly 3, and ultimately ensuring the stability of the overall tilting motion of the tilting fixture. Figure 6-9As shown, the fixing unit 34 is fastened to the flipping fixture table 4. The fixing unit 34 includes a connector 341, a first clamping member 342 and a second clamping member 343 fixed to the connector 341. The connector 341 has a weight-reducing hole in the center, which can reduce weight and reduce production costs. The connector 341 and the connecting seat 33 are fixedly connected by bolts. The first clamping member 342 is fixed to the bottom of the connector 341 by bolts. The second clamping member 343 is fixedly connected to the connector 341 by bolts. The first clamping member 342 and the second clamping member 343 are arranged in parallel. A clamping gap is left between the first clamping member 342 and the second clamping member 343. The flipping fixture table 4 is fastened between the first clamping member 342 and the second clamping member 343 by bolts.

[0030] In some of these embodiments, such as Figure 10 , Figure 11As shown, the flipping fixture table 4 is fixedly connected by two sets of flipping support components 3. The flipping fixture table 4 is roughly square flat, providing an assembly work surface for the fuel cell stack. Fixing grooves 41 are provided on both sides of the flipping fixture table 4. The fixing grooves 41 are suitable for fixed connection with the flipping support components 3. The shape of the fixing grooves 41 matches the second clamping member 343. Bolts are used to sequentially pass through the second clamping member 343, the pre-drilled connecting holes on the fixing grooves 41 of the flipping worktable 4, and the first clamping member 342 for fixation. Limiting grooves 42 are respectively provided on both sides of the flipping fixture table 4. The shape and size of the limiting grooves 42 match the shape and size of the fuel cell stack unit, thereby preventing displacement during fuel cell stack assembly and limiting the fuel cell stack unit. A second positioning groove 422 is provided on the side of the limiting groove 42 on both sides of the flipping fixture table 4. A lower pad is also provided between the flipping fixture table 4 and the fuel cell stack unit. The lower pad cooperates with the limiting groove 42 and is located in the limiting groove 42. A protruding connecting part is provided on the lower pad. The gripping shaft passes through the connecting part on the lower pad. The second positioning groove 422 is suitable for placing the bottom of the gripping shaft and the protruding connecting part of the lower pad. This allows the automatic robotic arm to pick up the gripping shaft and drive the lower pad and the fuel cell stack unit located on the lower pad to transfer to the next process. The second positioning groove 422 is provided to accommodate the bottom of the gripping shaft and the protruding connecting part on the lower pad, thereby ensuring the flatness of the fuel cell stack unit during assembly. First positioning grooves 421 are provided at the four corners of the limiting grooves 42 on both sides of the flipping fixture table 4. The bottom of the fixing screw is suitable for placing in the first positioning groove 421. The fixing screw is used to pass through the lower pad and the stack unit for assembly and positioning. The first positioning groove 421 is provided to accommodate the bottom of the fixing screw, thereby ensuring the flatness of the stack unit during assembly. A test hole 423 is provided in the limiting groove 42. The test hole 423 is connected to a gas probe. The gas probe is also connected to an external gas testing system. The gas probe is connected to the inlet and outlet of the electrolyte flow channel on the end face of the stack unit 200 of the flow battery to verify whether there is leakage in the electrolyte flow channel and electrode cavity of the stack unit 200, so as to avoid electrolyte cross-flow or leakage affecting battery performance. An observation port 43 is provided in the center of the flipping fixture table 4 as an observation port for the fuel cell stack. The observation port 43 is located in the center of the limiting groove 42 and avoids the first positioning groove 421, the second positioning groove 422 and the test hole 423. The observation port 43 is used to observe whether the fuel cell stack units 200 are flat after being stacked. On the other hand, it can also reduce weight and save costs. Multiple mounting holes 44 are provided around the flipping fixture table 4. The mounting holes 44 are suitable for installing the fixing fixture 5.

[0031] In some of these embodiments, such as Figure 12As shown, multiple fixing clamps 5 are provided, and the fixing clamps 5 are installed on the mounting holes 44 around the flipping fixture table 4. The fixing clamp 5 includes a base 51, a connecting rod transmission component 52 set on the base 51, a pressure head 53 set on the connecting rod transmission component 52, and an operating handle 54. The base 51 is roughly plate-shaped and has mounting holes. The base 51 is fixed to the mounting holes 44 on the flipping fixture table 4 by bolts. The base 51 provides an installation reference for the connecting rod transmission component 52, the pressure head 53, and the operating handle 54, and fixes the fixing clamp 5 as a whole on the flipping fixture table 4, ensuring that the fixing clamp 5 is firmly connected to the flipping fixture table 4, preventing the fixing clamp 5 from shifting during the clamping process, and providing a stable installation base for subsequent clamping operations. The linkage 52 is fixed to the base 51. The linkage 52 is a connecting rod hinged via a pin. It amplifies and redirects the force exerted by the operating handle 54, converting manual force into a clamping force acting on the pressure head 53, thus providing sufficient clamping force to stabilize the fuel cell stack assembly. The pressure head 53 is located at one end of the linkage 52. It is positioned over the area of ​​the fuel cell stack assembly to be clamped and directly applies clamping force, limiting displacement during flipping and assembly. A rubber layer is provided at the bottom of the pressure head 53 to prevent damage to the surface of the fuel cell stack assembly, thereby protecting the structural integrity of the semi-finished fuel cell stack. The operating handle 54 is connected to the other end of the linkage 52. Manually operating the operating handle 54 drives the linkage 52, thereby controlling the pressure head 53 to switch between clamping and releasing actions. The fixing fixture 5 facilitates rapid operation, enabling quick clamping and releasing via the operating handle 54, significantly improving the efficiency of fixing, assembling, and re-fixing during fuel cell stack assembly.

[0032] In some of these embodiments, such as Figure 13As shown, the flipping device 100 for assembling a flow battery stack also includes a displacement sensor assembly 6 located on one side of the flipping support assembly 3. The displacement sensor assembly 6 is located on the outer side of the flipping support assembly 3, away from the drive assembly 2. The displacement sensor assembly 6 includes a sensor lever 61, a grating bracket 62 mounted on the first support frame 12, and an infrared sensor 63 fixed on the grating bracket 62. Another set of connecting shafts 32 of the flipping support assembly 3, located away from the drive assembly 2, passes through the inner ring of the bearing 31. One end of the connecting shaft 32 is connected to a connecting seat 33, and the other end of the connecting shaft 32 is fixed with a connecting plug 64. The connecting plug 64 is located at the other end of the connecting shaft 32 and can be limited at the outlet of the inner ring of the bearing 31. The sensor lever 61 is fixed to the connecting plug 64 by a fixing bolt 65, thereby fixing the connecting shaft 32 and the sensor lever 61, providing a stable mounting base for the sensor lever 61, and allowing the sensor lever 61 to rotate synchronously with the connecting shaft 32. The sensor lever 61 has a pointer-like structure and can rotate and shift with the connecting shaft 32. During rotation, the displacement trajectory of the sensor lever 61 interacts with the fixed sensing position of the infrared sensor 63, transmitting motion signals of the flip angle or position, thus converting the rotational motion of the connecting shaft 32 into a displacement sensing signal recognizable by the infrared sensor 63. The grating bracket 62 is fixed to the first support block 121 of the first support frame 12 by bolts and corresponds to the position of the sensor lever 61. The grating bracket 62 is bracket-shaped and has an arc-shaped slot 621. The infrared sensor 63 is installed in the arc-shaped slot 621, and the grating bracket 62 is used to position and support the infrared sensor 63. There are two infrared sensors 63, respectively located at both ends of the arc-shaped slot 621 of the grating bracket 62. The infrared sensors 63 are used to detect the displacement change of the sensor lever 61, thereby determining the flip angle of the flip fixture table 4 and achieving accurate detection of the flip state of the flip fixture table 4.

[0033] The assembly process of the flipping device 100 for assembling a flow battery stack of the present invention is as follows: First, a base 11 is set up. Then, support feet 111 and casters 112 are installed at the four corners of the bottom of the base 11. Two first support frames 12 are installed on the base 11, and a first support block 121 is installed on the top of each first support frame 12. Then, a second support frame 13 is installed on the side of the base 11, and a second support block 131 is installed on the top. The reduction motor 21 is fixed to the second support block 131 of the second support frame 13 with bolts. Then, a shaft connector 22 is installed, with one end connected to the reduction motor 21 and the other end left to connect to the subsequent flipping support assembly 3, which can reduce... Minimal vibration during power transmission ensures smoother rotation. Two sets of rotation support assemblies 3 are then installed. The seated bearing 31 is bolted to the first support block 121 of the first support frame 12. The connecting shaft 32 passes through the inner ring of the seated bearing 31. One end of one set of connecting shafts 32 is connected to the front shaft connector 22, and the other end is fitted with a connecting seat 33. Both sets of connecting seats 33 have lubricating plates 35 on the side closest to the connecting shaft 32. Finally, a fixing unit 34 is installed on the connecting seat 33. The connecting member 341, the first clamping member 342, and the second clamping member 343 of the fixing unit 34 are bolted together. The holding members 343 are arranged in parallel with a gap in the middle to clamp the flipping fixture table 4; then the flipping fixture table 4 is aligned with the two sets of fixing units 34. The flipping fixture table 4 has fixing grooves 41 on both sides, which match the second clamping members 343 of the fixing units 34. Bolts are used to pass through the holes on the second clamping members 343, the fixing grooves 41, and the first clamping members 342 in sequence to firmly fix the flipping fixture table 4 to the flipping support assembly 3; multiple fixing clamps 5 are fixed with bolts through the mounting holes 44 around the flipping fixture table 4; the pressure head 53 of the fixing clamp 5 is aligned with the position where the fuel cell unit semi-finished product needs to be clamped, and the bottom of the pressure head 53 With a rubber layer, the pressure head can be clamped or released by turning the handle 54; finally, the displacement sensor assembly 6 is installed on the outside of the flip support assembly 3 on the side away from the drive assembly 3, and the grating bracket 62 is fixed to the first support block 121 with bolts. The grating bracket 62 has an arc-shaped groove 621. Two infrared sensors 63 are installed at both ends of the arc-shaped groove 621. A connecting plug 64 is installed at the end of the connecting shaft 32 on the corresponding side. The sensor lever 61 is fixed to the connecting plug 64 with fixing bolts. The sensor lever 61 can rotate with the connecting shaft 32. The infrared sensor determines the flip angle of the flip tool table 4 by detecting the position of the lever.

[0034] The working process of the flipping device 100 for assembling flow battery stacks of the present invention is as follows: First, the flipping fixture table 4 is kept horizontal. On one side of the flipping fixture table 4, the first semi-finished component of the stack unit is assembled sequentially in the limiting groove 42. Then, the operating handle 54 is turned by the surrounding fixing clamps 5 to make the pressure head 53 clamp the semi-finished product, completing the initial assembly of the first semi-finished product. Then, the drive assembly 2 is started, the reduction motor 21 is powered on, and the power is transmitted to the connecting shaft 32 of the flipping support assembly 3 through the shaft connector 22. The connecting shaft 32 drives the connecting seat 33 and the flipping fixture table 4 fixed on it to flip. At the same time, the displacement sensor assembly 6 starts to work. The sensor lever 61 rotates with the connecting shaft 32, and the infrared sensor 63 detects the displacement of the sensor lever 61. Position the workpiece 4 so that it is rotated exactly 180 degrees, and then stop the geared motor 21. After rotation, with the other side of the workpiece 4 facing up, continue assembling the second battery stack semi-finished component on the other side. Similarly, use the limiting groove 42 to fix the position and use the fixing clamp 5 to clamp it. During the assembly process, the observation port 43 can be used to see whether the semi-finished products are stacked flat to ensure assembly accuracy. Then continue to rotate the workpiece 4 according to the above steps and assemble according to the stacking order of the battery stack units until all the semi-finished products are stacked to complete the assembly of the entire flow battery stack. After assembly, check whether the battery stack unit is leaking. Connect the gas probe to the test hole 423 of the workpiece 4 and then use the gas detection system to detect whether there is any leakage in the electrolyte flow channel.

[0035] The flipping device 100 for assembling a flow battery stack of the present invention includes a support assembly 1, a drive assembly 2 disposed on the support assembly 1, a flipping support assembly 3, a flipping fixture 3 fixedly connected to the flipping support assembly 3, and a fixing clamp 5 disposed on the flipping fixture 3. The support assembly 1 carries the drive assembly 2, the flipping support assembly 3, and the flipping fixture 4. The drive assembly 2 transmits power to the flipping fixture 4 through the flipping support assembly 3. The fixing clamp 5 clamps the various layers of the stack. The drive assembly 2 includes a geared motor 21 and a shaft connector 22. The shaft connector 22 is installed between the geared motor 21 and the flipping support assembly 3. The flipping support assembly 3... Two sets are provided. The flipping support assembly 3 includes a seated bearing 31, a connecting shaft passing through the inner ring of the seated bearing 31, a connecting seat 33 fixed to the connecting shaft 32, and a fixing unit 34 fixed to the connecting seat 33. The fixing unit 34 is fastened to the flipping fixture table 4. The flipping fixture table 4 is a square plate used to provide an assembly work surface for the fuel cell stack. Fixing grooves 41 are provided on both sides of the flipping fixture table 4. The shape of the fixing grooves 41 matches the second clamping member 343 of the flipping support assembly 3. Limiting grooves 42 are provided on both sides of the flipping fixture table 4. An observation port 43 is provided in the center of the flipping fixture table 4. Multiple mounting holes 44 are provided around the flipping fixture table 4.The flipping device 100 for assembling flow battery stacks of the present invention, through the cooperation of the flipping fixture table 4, the flipping support component 3, and the drive component 2, integrates the two processes of preliminary assembly of the semi-finished stack components and multi-component stacking integration on the same flipping fixture table 4. This eliminates the need for multiple dedicated worktables; a single flipping fixture table 4 can complete the entire process from assembling a single semi-finished component to stacking multiple components layer by layer. Furthermore, the process integration eliminates the need for multiple workers to operate different tables; only a small number of operators are required to complete the flipping control and component assembly. The clamping operation significantly reduces the hardware procurement and site occupation costs of the workbench, and lowers the manpower configuration and management costs. By clamping the components of each layer of the fuel cell stack with the fixing fixture 5, and combined with the flipping tooling table 4 following the flipping support component 3, the handling of the fuel cell stack semi-finished components across the table is reduced, the alignment accuracy is improved and the risk of leakage is reduced. The drive component 2 adopts a geared motor 21 and a shaft connector 22. The geared motor 21 converts electrical energy into stable mechanical energy. The speed is reduced and the output torque is increased through the speed reducer, providing continuous and sufficient flipping power for the flipping tooling table 4. Two sets of flipping support assemblies 3 are provided. Each flipping support assembly 3 includes a seated bearing 31, a connecting shaft 32, a connecting seat 33, and a fixing unit 34. The two sets of flipping support assemblies 3 are symmetrically distributed on the first support frame 12 of the bracket assembly 1, which can form a symmetrical and balanced support force on the flipping fixture table 4. The flipping fixture table 4 can complete the preliminary assembly of the fuel cell stack semi-finished assembly and the stacking of multiple components on a single table, eliminating the need for multiple tables and reducing hardware investment and space occupation. The fixing slots 41 on both sides are adapted to the second clamping parts 343 of the flipping support assembly 3 and are secured by bolts. A secure connection ensures that the flipping fixture table 4 flips smoothly and synchronously with the flipping support component 3, preventing loosening of the connection; the limiting grooves 42 on both sides can accurately position the semi-finished fuel cell stack components, limiting the displacement of components during assembly and flipping, improving the alignment accuracy of multi-component stacking, and reducing the risk of electrolyte leakage; the central observation port 43 facilitates real-time monitoring of the flatness of the stacked fuel cell stack components, timely detection and adjustment of deviations, and ensures the quality of fuel cell stack assembly; the mounting holes 44 around the perimeter provide a stable mounting base for the fixing clamp 5, forming a dual fixation of limiting and clamping with the clamp, while protecting the vulnerable structure of the component surface.

[0036] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of the present invention. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A flipping device for assembling a flow battery stack, characterized in that, include: The device comprises a support assembly, a drive assembly mounted on the support assembly, a flipping support assembly, a flipping fixture platform fixedly connected to the flipping support assembly, and a fixing fixture mounted on the flipping fixture platform. The support assembly carries the drive assembly, the flipping support assembly, and the flipping fixture platform. The drive assembly transmits power to the flipping fixture platform through the flipping support assembly. The fixing fixture clamps the various layers of the fuel cell stack. The drive assembly includes a geared motor and a shaft connector. The shaft connector is installed between the geared motor and the flipping support assembly. The flipping support assembly has two sets. The flipping support assembly includes a bearing with a seat, a connecting shaft passing through the inner ring of the bearing with a seat, a connecting seat fixed to the connecting shaft, and a fixing unit fixed to the connecting seat. The fixing unit is fastened to the flipping fixture platform. The flipping device for assembling the flow battery stack cooperates with the flipping support assembly and the drive assembly through the flipping fixture platform to integrate the preliminary assembly of the fuel cell stack semi-finished components and the stacking integration of multiple components onto the same flipping fixture platform.

2. The roll-over device for assembling a flow cell stack of claim 1, wherein, The bracket assembly includes a base, two first support frames and one second support frame disposed on the base, and support feet are fixed at the four corners of the bottom of the base, and casters located on one side of the support feet are also fixed at the four corners of the bottom of the base.

3. The roll-over device for assembling a flow cell stack of claim 2, wherein, The first support frame has a first support block at its top, and the flip support assembly is fixed to the first support block; the second support frame has a second support block at its top, and the drive assembly is fixed to the second support block.

4. The roll-over device for assembling a flow cell stack of claim 3, wherein, The mounted bearing includes a rolling bearing and a bearing housing. The bearing housing is fixed to the first support block by bolts. The connecting seat is provided with a stop and a lubricating plate on the side near the connecting shaft. The lubricating plate is located between the mounted bearing and the connecting shaft.

5. The roll-over device for assembling a flow cell stack of claim 1, wherein, The fixing unit includes a connector, a first clamping member and a second clamping member fixed to the connector. The connector has a weight-reducing hole in the center. The first clamping member and the second clamping member are arranged in parallel. A clamping gap is left between the first clamping member and the second clamping member.

6. The roll-over device for assembling a flow battery stack of claim 1, wherein, Multiple fixing fixtures are provided, and the fixing fixtures are installed on the mounting holes around the flip tooling table.

7. The roll-over device for assembling a flow battery stack of claim 1, wherein, The fixing fixture includes a base, a linkage transmission component mounted on the base, a pressure head mounted on the linkage transmission component, and an operating handle.

8. The roll-over device for assembling a flow cell stack of claim 7, wherein, The base has mounting holes, and the base is fixed to the mounting holes on the flip tooling table by bolts. The bottom of the pressure head is provided with a rubber layer.

9. The roll-over device for assembling a flow cell stack of claim 1, wherein, The flipping device also includes a displacement sensor assembly located on one side of the flipping support assembly. The displacement sensor assembly includes a sensor lever, a grating bracket, and an infrared sensor fixed on the grating bracket.

10. The roll-over device for assembling a flow cell stack of claim 9, wherein, One end of the connecting shaft of the flip support assembly is fixed with a connecting plug. The sensor lever is fixed to the connecting plug by a fixing bolt. The sensor lever can rotate synchronously with the connecting shaft. The grating bracket has an arc-shaped slot. Two infrared sensors are provided, located at the two ends of the arc-shaped slot respectively. The infrared sensors detect the displacement change of the sensor lever.

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