Automated assembly process and system for energy storage battery stacks

Abstract

The application provides an automatic assembly process and system of an energy storage battery stack, and the process comprises the following steps: step 1, assembling an inlet and outlet liquid plate assembly based on a ring line one; step 2, presetting a nut two and a gasket two, so as to provide a process basis for subsequent assembly and tightening of the battery stack product; step 3, transferring an intermediate plate to a tool plate on a ring line two; step 4, assembling a sub-battery stack; step 5, turning the sub-battery stack by 180 degrees, so that the intermediate plate is turned by 180 degrees, and then step 4 is performed to complete the assembly of another sub-battery stack; step 6, tightening the two sub-battery stacks through a pull rod to form the battery stack product; and step 7, discharging. In the application, the devices are connected through conveying lines, and are cooperatively operated under the action of a control system and an information system, so that the automatic and intelligent production of the battery stack assembly is realized, the labor intensity is reduced, and the production efficiency and the assembly quality are improved.

Description

Technical Field

[0001] This invention belongs to the technical field of automatic assembly of energy storage battery stacks, and particularly relates to an automated assembly process and system for energy storage battery stacks. Background Technology

[0002] As the energy storage sector demands higher capacity and longer lifespan for its batteries, the advantages of flow batteries are becoming increasingly apparent, leading to a stronger need for technological breakthroughs in flow batteries. Current flow battery stack assembly is primarily manual, especially the assembly of flow battery stacks, which involves numerous repetitive parts and is frequently affected by human factors, resulting in omissions and errors, impacting product quality and efficiency. This invention addresses these issues by developing an automated assembly process and production line for energy storage battery stacks. Summary of the Invention

[0003] The purpose of this invention is to provide an automated assembly process and system for energy storage battery stacks, effectively solving the problems of low efficiency, poor stability, and high labor intensity caused by manual assembly. To achieve the above objective, the technical solution adopted is as follows:

[0004] An automated assembly process for an energy storage battery stack includes the following steps:

[0005] Step 1: Assemble the inlet and outlet liquid plate assemblies based on loop line 1;

[0006] Step 2, the pre-installation process of nut 45 and washer 53, provides a technological basis for the subsequent assembly and tightening of fuel cell product 74;

[0007] Step 3: The intermediate plate 50 is put on the line and transferred to the tooling plate on the second loop line;

[0008] Step 4: Assemble the sub-pile, which specifically includes:

[0009] Step 41: The intermediate inlet and outlet liquid plate assembly is put into operation and transferred to the intermediate plate 50;

[0010] Step 42: The end electrode plate frame 57 is put online and transferred to the surface of the middle liquid inlet / outlet plate assembly;

[0011] Step 43: The single cell loading and stacking process, completing the loading and stacking process of carbon felt 54, ion membrane 55 and three-in-one frame 56;

[0012] Step 44: The end electrode plate frame 57 is wired and transferred to the surface of the last single cell.

[0013] Step 45: The liquid outlet plate assembly at the end is put online and grabbed to the lower electrode plate frame 57 at the end.

[0014] Step 46: End plate 46 is put online and transferred to the inlet / outlet liquid plate assembly at the end;

[0015] Step 47: First screw 44, spring 58, and outer panel 48 are put into place and installed;

[0016] Step 48: Tighten the first screw 44 to the intermediate plate 50;

[0017] Step 49: Attach nut 41 and pre-tighten it to secure the sub-fuel stack;

[0018] Step 5: Flip the sub-pack 180° to flip the intermediate plate 50 180°, then execute step 4 to complete the assembly of the other sub-pack.

[0019] Step 6: Tighten the two sub-fuel stacks using the tie rods to form fuel stack product 74;

[0020] Step 7: Log off.

[0021] Preferably, step 1 specifically includes:

[0022] Step 11: Load material onto the inlet / outlet liquid plate 47 and transfer it to the tooling plate 64 on the loop line 1;

[0023] Step 12: Load the sealing ring and apply adhesive to the inlet / outlet liquid plate 47;

[0024] Step 13: The loop frame 52 is placed on the line and the adhesive is transferred and finally pasted onto the groove on the liquid inlet / outlet plate 47;

[0025] Step 14: The copper plate 51 is put on the line and the adhesive is transferred and then attached to the inlet / outlet liquid plate 47.

[0026] Step 15: Inlet / outlet liquid plate assembly is rolled off the production line.

[0027] Preferably, step 43 specifically includes:

[0028] Step 431: The carbon felt is loaded onto the line and transferred to the end electrode plate frame 57;

[0029] Step 432: The ion exchange membrane is installed and transferred to the carbon felt 54 in step 431;

[0030] Step 433: The three-in-one plate frame 56 with carbon felt glued to both sides is put on the line and transferred to the ion membrane 55 in step 433.

[0031] Step 434, repeat steps 431~433 to complete the loading and stacking of the next single cell.

[0032] Preferably, the flipping process in step 5 specifically includes:

[0033] Before flowing into this workstation, empty tooling plates and tooling plates containing sub-chargers are identified via RFID. Tooling plates containing sub-chargers flow into this workstation.

[0034] Once the tooling plate is in place and stopped, the lifting mechanism of the sub-stacking equipment 19 lifts and positions the tooling plate.

[0035] The Z-axis servo mechanism descends, the fuel cell gripper clamps the sub-fuel cell, the Z-axis servo mechanism rises to a specified distance, and the sub-fuel cell is flipped 180° by the side flipping mechanism.

[0036] Preferably, step 6 specifically includes:

[0037] Step 61: Insert the tie rod into the corresponding tension hole of the sub-pack, with the tie rod passing through both sub-packs;

[0038] Step 62: Pre-tighten one end of the pull rod to the end plate 46 of the first sub-pile formed, install the spring 58, and tighten the nut 41;

[0039] During the pre-tightening process of the tie rod, washer 253 and nut 245 are fitted onto the tie rod;

[0040] Step 63: Flip it 180 degrees again.

[0041] An automated assembly system for an energy storage battery stack includes:

[0042] Ring line one, used for assembling inlet and outlet liquid plate assemblies, includes:

[0043] The inlet / outlet liquid plate feeding device 01 is used to complete the feeding of the inlet / outlet liquid plate 47;

[0044] The sealing ring feeding and adhesive application equipment 02 performs the sealing ring feeding and inlet / outlet liquid plate 47 adhesive application process.

[0045] The process of mounting the loop frame 52 on the line using the loop frame mounting equipment 03, transferring and applying adhesive, and finally pasting it onto the groove on the inlet / outlet liquid plate 47.

[0046] The copper plate online equipment 04 performs the process of putting copper plate 51 online, transferring and attaching adhesive, and finally pasting it onto the inlet / outlet liquid plate 47.

[0047] The inlet and outlet plate assembly unloading equipment 05 performs the process of unloading inlet and outlet plate assemblies.

[0048] Ring line two, used for assembling fuel cell stack product 74, which includes:

[0049] Nut and washer pre-setting equipment 06 performs the pre-setting process of nut 2 45 and washer 2 53;

[0050] The intermediate plate goes online at equipment 07 to perform the process of putting intermediate plate 50 online and transferring it to the tooling plate on the second loop line;

[0051] The inlet and outlet liquid plate assembly line equipment 108 performs the intermediate inlet and outlet liquid plate assembly line process and transfers it to the intermediate plate 50.

[0052] The end electrode plate frame online equipment 09 performs the end electrode plate frame 57 online process.

[0053] The carbon felt loading equipment 10 performs the process of loading carbon felt onto the line and transferring it to the end electrode plate frame 57.

[0054] The ion exchange membrane online equipment 11 performs the ion exchange membrane online process;

[0055] The three-in-one panel frame online equipment 12 performs the three-in-one panel frame 56 online process;

[0056] Equipment 213 for loading inlet and outlet liquid plate assemblies performs the process of loading the inlet and outlet liquid plate assemblies at the end.

[0057] End plate online equipment 14, to carry out the process of putting end plate 46 online;

[0058] The screw spring appearance plate is put into the online equipment 15 to carry out the process of putting the second screw 43, the first screw 44, the spring 58, and the appearance plate 48 into the online equipment and installing them.

[0059] The screw tightening device 16 performs the tightening process of the first screw 44 and the second screw 43;

[0060] Nut loading equipment 17 performs the process of loading nut 41;

[0061] Nut tightening equipment 18 performs the pre-tightening process of nut 41;

[0062] Sub-stacking device 19, used to flip sub-stacking devices;

[0063] Finished product unloading equipment 20 is used to transfer fuel cell stack product 74 out of loop line two.

[0064] Compared with the prior art, the advantages of the present invention are:

[0065] 1. The technical method and production line in this invention completely replace manual assembly. The entire line is divided into a sub-line (the loop frame component line) and a main line. The loop frame is separated and assembled in the same process, which reduces the repetition of the whole line, lowers the cost of the automated production line, and improves the overall production efficiency.

[0066] 2. The technical method and production line of the present invention integrate ion membrane forming into the main line to achieve automatic cutting, automatic forming and automatic stacking; in conjunction with the automatic carbon felt loading equipment and the three-in-one plate and frame loading equipment, the core stacking station of the fuel cell stack has realized the automated production process.

[0067] 3. This invention provides an excellent basis for the assembly and automated production of fuel cell stacks. Attached Figure Description

[0068] Figure 1 This is a product assembly process flow diagram of a preferred embodiment provided by the present invention;

[0069] Figure 2 This is a schematic diagram of the structure of an automated production line for an energy storage battery stack according to the present invention;

[0070] Figure 3 This is a schematic diagram of an energy storage battery stack.

[0071] Figure 4 This is a schematic diagram of the tooling plate used in loop line one;

[0072] Figure 5 This is a schematic diagram of the tooling plate used in loop line two;

[0073] Figure 6 This is a schematic diagram of a preferred secondary positioning stage structure of the present invention.

[0074] Among them, 01. Inlet and outlet liquid plate feeding equipment; 02. Sealing ring feeding and adhesive application equipment; 03. U-shaped frame loading equipment; 04. Copper plate loading equipment; 05. Inlet and outlet liquid plate assembly unloading equipment;

[0075] 06. Nut and washer pre-setting equipment; 07. Intermediate plate online equipment;

[0076] 08. Inlet / outlet plate assembly online equipment 1; 09. End electrode plate frame online equipment; 10. Carbon felt online equipment; 11. Ion exchange membrane online equipment; 12. Three-in-one plate frame online equipment;

[0077] 13. Equipment 2 for inlet / outlet liquid plate assembly; 14. Equipment 2 for end plate assembly;

[0078] 15. Screw spring appearance plate online equipment; 16. Screw tightening equipment; 17. Nut online equipment; 18. Nut tightening equipment;

[0079] 19. Sub-stacking equipment; 20. Finished product unloading equipment;

[0080] 22. Circular conveyor line; 23. Control and information system;

[0081] 41. Nut 1; 42. Washer 1; 43. Screw 2; 44. Screw 1; 45. Nut 2; 46. End plate; 47. Inlet / outlet liquid plate; 48. Outer plate; 50. Intermediate plate; 51. Copper plate; 52. U-shaped frame; 53. Washer 2; 54. Carbon felt; 55. Ion membrane; 56. Three-in-one plate frame; 57. Terminal electrode plate frame; 58. Spring;

[0082] 61. Tooling plate guide roller; 62. Positioning component one; 63. Tooling plate support plate; 64. Tooling plate;

[0083] 71. Positioning rod; 72. Tooling plate two support plate; 73. Connecting rod; 74. Fuel cell stack product; 75. Positioning component two; 76. Guide wheel;

[0084] 81. Side push mechanism one; 82. Side push mechanism two; 83. Side push mechanism three; 84. Reference edge one; 85. Reference edge two; 86. Secondary positioning stage. Detailed Implementation

[0085] The automated assembly process and system of the energy storage battery stack of the present invention will be described in more detail below with reference to the schematic diagrams, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.

[0086] The automated assembly process for energy storage battery stacks includes the following steps:

[0087] Step 1: Based on loop line 1, assemble the inlet and outlet liquid plate assembly.

[0088] Step 11: Load material onto inlet / outlet liquid plate 47 and transfer it to tooling plate 64 on loop line 1.

[0089] Based on the inlet / outlet liquid plate loading equipment 01, the loading process of the inlet / outlet liquid plate 47 is completed.

[0090] Specifically, when the tooling plate 64 is in position and stops, the lifting mechanism of the inlet / outlet liquid plate feeding equipment 01 lifts and positions the tooling plate 64; a person manually places a tray of inlet / outlet liquid plates 47 into the pallet on the feeding conveyor line of the inlet / outlet liquid plate feeding equipment 01, and the conveyor line sends the inlet / outlet liquid plates 47 to the picking position.

[0091] The feeding grippers sequentially grab the inlet and outlet liquid plates 47 and place them into the secondary positioning table. On the positioning table, the inlet and outlet liquid plates 47 are pushed into the reference sides of the other two opposite sides by the side cylinders, thus completing the secondary positioning of the inlet and outlet liquid plates 47.

[0092] The loading servo robot grabs the inlet / outlet liquid plate 47 on the secondary positioning table and sends it to the positioning fixture of the tooling plate 64.

[0093] After the empty pallet is picked up by the servo robot, it is placed into the parallel unloading conveyor line to complete the empty pallet return; the robot is reset, the stop is reset, and the tooling plate 64 flows into the next process along the loop line.

[0094] Step 12: Load the sealing ring and apply adhesive to the inlet / outlet liquid plate 47.

[0095] This process is based on the sealing ring feeding and adhesive application equipment 02, specifically:

[0096] The tooling plate 64 is stopped in place, and the lifting mechanism lifts and positions the tooling plate 64.

[0097] The sealing ring is fed out by the vibratory feeder in a flat position. The gripper integrated at the front end of the robot arm removes the sealing ring and sends it to the upper part of the tooling plate 64 for later use.

[0098] The sealing ring is pushed into the placement slot (inlet and outlet) opened on the inlet / outlet plate 47 by the peeling cylinder on the integrated gripper.

[0099] The integrated sealing ring feeding and adhesive applicator 02 automatically applies double-sided adhesive into the grooves opened on the inlet / outlet liquid plate 47. This double-sided adhesive is then bonded to the four-sided adhesive on the subsequent U-shaped frame 52.

[0100] All mechanisms are reset, and tooling plate 64 flows into the next process.

[0101] Step 13: The loop frame 52 is placed on the line and the adhesive is transferred and finally pasted onto the groove on the inlet / outlet liquid plate 47.

[0102] Specifically, this process is completed using the loop frame online equipment 03.

[0103] When tooling plate 64 is in position and stopped, the lifting mechanism of the loop frame online equipment 03 lifts and positions tooling plate 64.

[0104] The circular frame 52 is manually stored in the material retrieval position according to a stack of pallets.

[0105] After being picked up by the transfer robot, the frame is placed into the adhesive application fixture of the frame loading equipment 03. The adhesive application equipment of the frame loading equipment 03 applies adhesive to the four sides of the frame 52.

[0106] The glued U-shaped frame 52 is sent to the loading position of the U-shaped frame loading equipment 03 by a horizontal transfer device (such as a robot, a servo transfer device, or other turnover mechanism with the same function).

[0107] The robotic arm picks up the rectangular frame 52 and places it into the tooling plate 64.

[0108] The press mechanism on the robotic arm is used to bond the loop frame 52 to the liquid inlet / outlet plate 47.

[0109] All mechanisms are reset, and tooling plate 64 flows into the next process.

[0110] Step 14: The copper plate 51 is put on the line and transferred to be attached with adhesive, and finally pasted onto the inlet / outlet liquid plate 47.

[0111] Specifically, this process is completed using copper plate online equipment 04.

[0112] When tooling plate 64 is in position and stopped, the lifting mechanism of copper plate online equipment 04 lifts and positions tooling plate 64.

[0113] Copper plates 51 are manually stored in the retrieval position according to a stack of trays.

[0114] After being picked up by the transfer robot, the copper plate is placed into the adhesive application fixture of the copper plate online equipment 04. The adhesive application equipment of the copper plate online equipment 04 applies large-area adhesive to the copper plate 51.

[0115] The copper plate 51 with adhesive applied is transported to the loading position by a horizontal transfer device.

[0116] The copper plate 51 is picked up by a robotic arm and placed on the tooling plate 64. The pressing mechanism on the robotic arm then bonds the copper plate 51 to the inlet / outlet liquid plate 47. At this time, the copper plate 51 is located above the U-shaped frame 52 and is bonded to the inlet / outlet liquid plate 47.

[0117] At this point, the inlet and outlet liquid plate assembly is complete on loop line one.

[0118] All mechanisms are reset, and tooling plate 64 flows into the next process.

[0119] Step 15: Inlet / outlet liquid plate assembly is rolled off the production line.

[0120] Specifically, this process is completed on the inlet / outlet liquid plate assembly offline equipment 05.

[0121] When tooling plate 64 is in position and stopped, the lifting mechanism of inlet / outlet liquid plate assembly unloading equipment 05 lifts and positions tooling plate 64.

[0122] The robotic arm picks up the inlet / outlet liquid plate 47 assembly from the previously installed tooling plate 64 and places it into the corresponding customized unloading trolley. The customized trolley can separate the inlet / outlet liquid plates 47 to prevent them from bumping into each other and causing damage to their appearance.

[0123] The inlet and outlet liquid plate assembly in the unloading trolley is used for feeding materials into inlet and outlet liquid plate assembly line equipment 108 and inlet and outlet liquid plate assembly line equipment 213.

[0124] Each mechanism is reset, and the empty tooling plate 64 is sent to the end of the line through the loop line to complete the assembly cycle of the next liquid inlet / outlet plate 47 assembly.

[0125] Regarding the structure of tooling plate 64, such as Figure 4 As shown: The tooling plate 64 includes a tooling plate support plate 63, on which a positioning element 62 and a tooling plate guide roller 61 are mounted. As is known from the prior art, the tooling plate guide roller 61 rolls along the production line, reducing the friction between the tooling plate and the side of the production line.

[0126] Subsequent steps 2-7 are all based on loop line two. Loop line two includes loop conveyor line 22 and control and information system 23.

[0127] The tooling plate structure on loop two, such as Figure 5 As shown, the tooling plate is a tooling plate second support plate 72, on which positioning component second 75 and guide wheel 76 are installed. Positioning rod 71 passes through tooling plate second support plate 72.

[0128] The connecting rod 73 connects two positioning rods 71, and the positioning rods 71 ​​play a positioning role when they pass through the fuel cell stack product 74.

[0129] Specifically, steps 2 to 7 include:

[0130] Step 2, the pre-installation of nut 45 and washer 53, provides the technological basis for the subsequent assembly of fuel cell product 74, namely the tightening in step 6.

[0131] Specifically, this process is carried out based on the nut and washer pre-setting equipment 06.

[0132] The tooling plate is positioned and stopped, and the lifting mechanism of the nut and washer pre-positioning device 06 lifts and positions the tooling plate 64.

[0133] Nut 245 and washer 253 are discharged in a specified posture by vibration of the vibrating plate.

[0134] The robotic arm uses integrated grippers to successively pick up nut 45 and washer 53, placing them into the mounting fixture corresponding to tooling plate 72. Specifically, in steps 2-7, "tooling plate" refers to tooling plate 72.

[0135] All mechanisms are reset, and the tooling plates flow into the next process.

[0136] Step 3: The intermediate plate 50 is put onto the production line and transferred to the tooling plate on loop line two. (Example) Figure 1 This demonstrates steps 3-4.

[0137] Specifically, this process is carried out on the intermediate board online equipment 07.

[0138] Once the tooling plate is in place and stopped, the lifting mechanism of the intermediate plate-on-board equipment 07 lifts and positions the tooling plate.

[0139] A manual person places a tray of intermediate plates 50 into the feed conveyor of the intermediate plate online equipment 07, and the conveyor sends the intermediate plates 50 to the picking position of the intermediate plate online equipment 07.

[0140] The feeding grippers sequentially grab the intermediate plate 50 and place it into the secondary positioning table. The intermediate plate 50 is pushed into the reference side of the other two opposite sides by the side cylinders, thus completing the secondary positioning of the intermediate plate 50.

[0141] The loading servo robot grabs the intermediate plate 50 on the secondary positioning table and sends it to the positioning fixture of the tooling plate; after the empty pallet is grabbed by the servo robot, it is placed into the parallel unloading conveyor line, that is, the unloading conveyor line of the intermediate plate online device 07, to complete the return of the empty pallet.

[0142] The robotic arm resets, stops, and resets; the tooling plate then flows into the next process.

[0143] Step 4: Assemble the sub-pile, which specifically includes:

[0144] Step 41: The intermediate inlet and outlet liquid plate assembly is put into operation and transferred to the intermediate plate 50.

[0145] This process is carried out on equipment 108, which is used for the inlet and outlet liquid plate assembly.

[0146] Once the tooling plate is in place and stopped, the lifting mechanism of the inlet / outlet liquid plate assembly equipment 108 lifts and positions the tooling plate.

[0147] The transfer robot picks up the inlet / outlet plate assembly pushed from the production line 05 by the transfer robot, moving it from the top to the bottom, and places it on the secondary positioning table 86. The assembly is then pushed sideways by two cylinders (side push mechanism 1 81 and side push mechanism 2 82) onto the two reference edges (reference edge 1 84 and reference edge 2 85), completing the secondary positioning of the inlet / outlet plate assembly. Side push mechanism 3 83 pushes one side of the product, moving the workpiece to the opposite positioning edge to complete the positioning; its function is the same as that of side push mechanism 1 81.

[0148] The loading servo robot grabs the liquid inlet / outlet plate assembly in the secondary positioning stage and sends it to the middle plate (50) on the tooling plate. The tooling plate is positioned by the N sets (N≥2) positioning rods 71.

[0149] Specifically, at this time, the positioning rod 71 passes through the intermediate plate 50 and the inlet / outlet liquid plate assembly in sequence.

[0150] All mechanisms are reset, and the tooling plates flow into the next process.

[0151] Step 42: The end electrode plate frame 57 is put online and transferred to the surface of the middle liquid inlet / outlet plate assembly.

[0152] Specifically, the end electrode frame 57 moves to the surface of the copper plate 51.

[0153] This process is carried out on the end electrode plate frame online equipment 09.

[0154] Once the tooling plate is in place and stopped, the lifting mechanism of the end electrode plate frame on the online equipment 09 lifts and positions the tooling plate.

[0155] The special double-sided adhesive release paper on the end electrode plate frame 57 is manually peeled off and placed into the feeding buffer table fixture.

[0156] The buffer station consists of two workstations, which can be shifted left and right by servo to achieve independent loading on the left and right sides and unloading in the middle position.

[0157] The loading servo robot grabs the end electrode plate frame 57 from the secondary positioning stage and delivers it to the inlet / outlet liquid plate assembly on the tooling plate. At this time, the end electrode plate frame 57 is attached to the surface of the copper plate 51.

[0158] Positioning is maintained by the N sets of positioning rods 71 ​​(N≥2) provided with the tooling plate. That is, at this time, the positioning rods 71 ​​pass through the end electrode plate frame 57.

[0159] All mechanisms are reset, and the tooling plates flow into the next process.

[0160] Step 43: The single-cell loading and stacking process involves the carbon felt loading equipment 10, the ion membrane loading equipment 11, and the three-in-one plate frame loading equipment 12 working together to complete the loading and stacking process of carbon felt 54, ion membrane 55, and three-in-one plate frame 56. This process enables the assembly of multiple sets of three different structures and is compatible with the assembly of battery stack products 74 with different capacities.

[0161] Specifically, it includes:

[0162] Step 431: The carbon felt is loaded onto the line and transferred to the end electrode plate frame 57.

[0163] Specifically, this process is based on carbon felt online equipment 10.

[0164] When the tooling plate is in place and stopped, the lifting mechanism of the carbon felt loading equipment 10 lifts and positions the tooling plate.

[0165] The pallet containing carbon felt 54 is delivered to the material release position of this workstation by the transfer device.

[0166] The servo transfer robot takes the carbon felt 54 from the tray and places it on the secondary positioning stage. The secondary positioning stage integrates a vacuum adsorption base plate, which tightly adsorbs the carbon felt 54 into the positioning fixture.

[0167] The robotic arm integrates a vision device to photograph and locate the carbon felt 54, and feeds back the position of the carbon felt 54 to the robotic arm. After receiving the position feedback from the vision system, the robotic arm automatically adjusts the position of the suction cup gripper.

[0168] After grasping the carbon felt 54, the position of the carbon felt 54 on the gripper is sampled again through the vision device, and the position is fed back to the robot. After the robot corrects the position a second time, it puts the carbon felt 54 into the positioning groove corresponding to the end electrode plate frame 57 on the tooling plate.

[0169] This enables the precise assembly of carbon felt 54; the robot then resets, awaiting the next carbon felt 54 installation cycle.

[0170] Step 432: The ion exchange membrane is connected online and transferred to the carbon felt 54 in step 431.

[0171] Specifically, this process is based on ion exchange membrane online equipment 11.

[0172] The ion exchange membrane 55 consists of three layers: the middle layer is the ion exchange membrane body, and the two outer layers are protective back membranes. The protective back membranes are collected by a membrane winding roller, realizing the separation of the three membrane layers.

[0173] The servo robot arm, with its integrated suction cup gripper, places the ion exchange membrane 55 on the intermediate platform. The intermediate platform uses vacuum adsorption to flatten and attach the ion exchange membrane 55. The robot arm, with its integrated vision device, takes a picture of the ion exchange membrane 55 and feeds the position of the ion exchange membrane 55 back to the robot arm. After receiving the position feedback from the vision system, the robot arm automatically adjusts the position of the suction cup gripper, picks up the ion exchange membrane 55, and then samples the position of the ion exchange membrane 55 on the gripper again through the vision device. The position is also fed back to the robot arm. After the robot arm corrects the position a second time, it places the ion exchange membrane 55 into the designated positioning slot on the tooling plate 64, that is, places the ion exchange membrane 55 at the carbon felt 54 in step 431.

[0174] More specifically: The incoming material for the ion exchange membrane 55 is a roll. The roll of membrane is placed in the roll placement position of the ion exchange membrane cutting equipment. The initial section of membrane is manually pulled in and the end of the membrane is torn off, thus completing the preparation process for cutting the ion exchange membrane 55.

[0175] The front end of the ion membrane 55 cutting machine uses an integrated punch with XY servo transfer to automatically punch holes, and the number of holes can be customized. The rear end of the cutting machine uses an integrated vibrating cutter with XY servo to cut out the shape of the ion membrane 55. The bottom of the cutting machine table is designed with a vacuum system to ensure that the ion membrane 55 remains flat and in the same position during the cutting process.

[0176] Step 433: The three-in-one plate frame 56 with carbon felt glued to both sides is put on the line and transferred to the ion membrane 55 in step 433.

[0177] This process is carried out using the three-in-one board frame online equipment 12.

[0178] Specifically, the operator peels off the backing film of the hot melt adhesive on the surface of the three-in-one plate frame 56 and places it into the positioning fixture on the transfer table of the three-in-one plate frame online equipment 12.

[0179] The robotic arm integrates grippers to grasp the three-in-one plate frame 56 and install it onto the stacked ion membranes 55 on the tooling plate.

[0180] The three-in-one frame 56 is positioned by N sets (N≥2) of positioning rods integrated into the tooling plate. At this point, the feeding and stacking process of a single battery cell is completed.

[0181] All mechanisms were reset.

[0182] Step 434, repeat steps 431~433 to complete the loading and stacking of the next single cell.

[0183] During the material loading and stacking process, the positioning rod 71 gradually rises under the action of the lifting mechanism built into the stacking station to achieve the positioning function.

[0184] Step 44: The end electrode plate frame 57 is wired and transferred to the surface of the last single cell.

[0185] This process is carried out on the end electrode plate frame online equipment 09.

[0186] Once the tooling plate is in place and stopped, the lifting mechanism of the end electrode plate frame on the online equipment 09 lifts and positions the tooling plate.

[0187] The special double-sided adhesive release paper on the end electrode plate frame 57 is manually peeled off and placed into the feeding buffer table fixture.

[0188] The loading servo robot grabs the end electrode plate frame 57 in the secondary positioning stage and sends it to the surface of the three-in-one plate frame 56 of the last single battery on the tooling plate.

[0189] Step 45: The inlet and outlet liquid plate assembly at the end is put online and grabbed to the lower electrode plate frame 57 at the end.

[0190] This process is carried out on equipment 213, which is used for the inlet and outlet liquid plate assembly.

[0191] Once the tooling plate is in place and stopped, the lifting mechanism of the inlet / outlet liquid plate assembly on line equipment 2.13 lifts and positions the tooling plate.

[0192] The transfer robot picks up the inlet / outlet plate assembly pushed from the production line 05 by the transfer robot and places it onto the secondary positioning platform in sequence from top to bottom. The inlet / outlet plate assembly is pushed onto the reference edges on both sides by the side cylinders, thus completing the secondary positioning of the inlet / outlet plate assembly.

[0193] The loading servo robot grabs the inlet / outlet liquid plate assembly from the secondary positioning stage and delivers it to the end electrode plate frame 57 on the tooling plate. At this time, the inlet / outlet liquid plate assembly is located at the end, which is the end inlet / outlet liquid plate assembly.

[0194] In this assembly, the inlet / outlet liquid plate assembly at the end has one side of the copper plate 51 that is attached to the end electrode plate frame 57. For example... Figure 1 As shown.

[0195] The inlet and outlet liquid plate assembly at the end is also positioned by the N sets (N≥2) positioning rods 71 ​​provided with the tooling plate.

[0196] All mechanisms are reset, and the tooling plates flow into the next process.

[0197] Step 46: End plate 46 is put online and transferred to the inlet / outlet liquid plate assembly at the end.

[0198] This process is based on the endplate online device 14.

[0199] Once the tooling plate is in position and stopped, the lifting mechanism of the end plate of the online equipment 14 lifts and positions the tooling plate.

[0200] A manual person places a tray of end plates 46 into the feeding conveyor line of the end plate online device 14, and the conveyor line sends the end plates 46 to the picking position.

[0201] The feeding grippers sequentially pick up the end plate 46 and place it into the secondary positioning table. The end plate 46 is pushed into the reference side of the other two opposite sides by the side cylinders, thus completing the secondary positioning of the end plate 46.

[0202] The loading servo robot grabs the end plate 46 on the secondary positioning table and sends it to the inlet / outlet liquid plate assembly stacked on the tooling plate.

[0203] Similarly, the end plate 46 is positioned using four positioning rods 71 ​​on the tooling plate. Before step 47, the positioning rods 71 ​​maintain their positioning function in real time as the sub-fuel stack rises in height. The positioning rods are not shown in the figure.

[0204] After being picked up by a servo robot, the empty pallet is placed into the parallel unloading conveyor line, completing the return of the empty pallet.

[0205] The robotic arm resets, stops, and resets; the tooling plate then flows into the next process.

[0206] Step 47: The first screw 44, spring 58, and exterior panel 48 are put online and installed.

[0207] This process is carried out on the online equipment 15 for screw spring appearance plates.

[0208] Specifically, the tooling plate stops in place, and the lifting mechanism of the screw spring appearance plate on the online equipment 15 lifts and positions the tooling plate.

[0209] The outer panel 48 is oriented and discharged via a vibratory feeder, and the first screw 44 is oriented and discharged via a vibratory feeder.

[0210] Robotic arm one uses integrated grippers to pick up the outer panel 48 and place it on the side of the previously stacked sub-charger stacks. Robotic arm two uses integrated grippers and the first screw 44 to place it into the mounting hole of the sub-charger stack. Specifically, the outer panel 48 is installed by inserting the screw into the middle semi-circular groove on the outer side of the outer panel.

[0211] The servo tightening shaft integrated at the front end of the second robotic arm is used to pre-tighten the first screw 44. That is, one end of the first screw 44 is a threaded section, and the servo tightening shaft pre-tightens it on the intermediate plate 50. The other end of the first screw 44 will be fitted with a spring 58, which will then be tightened by the subsequent nut 41.

[0212] After the first screw 44 and the outer panel 48 are placed, the first and second robotic arms open their grippers to complete the installation process of the outer panel 48 and the screw.

[0213] Spring 58 is oriented and discharged by a vibratory feeder. The robotic arm with integrated gripper picks up spring 58 and inserts it into the front end of the first screw 44 in an up-down position, thus achieving the positioning and feeding of spring 58.

[0214] Place the gasket 142.

[0215] The robotic arm resets, stops, and resets; the tooling plate then flows into the next process.

[0216] Step 48: Tighten the first screw 44 to the intermediate plate 50.

[0217] This process is carried out using screw tightening equipment 16.

[0218] Specifically, when the tooling plate is in position and stopped, the lifting mechanism of the screw tightening device 16 lifts and positions the tooling plate.

[0219] This workstation integrates dual servo tightening shafts, driven by an XY servo mechanism. The two tightening shafts simultaneously tighten the first screw 44 diagonally, achieving a high-torque final tightening process for the first screw 44.

[0220] Each mechanism is reset, the stop is reset, and the tooling plate flows into the next process.

[0221] Step 49: Attach nut 41 and pre-tighten it to achieve tension and fixation of the sub-fuel stack.

[0222] This online process is based on nut online equipment 17.

[0223] When the tooling plate is in place and stopped, the lifting mechanism of the nut loading equipment 17 lifts and positions the tooling plate; nut 41 is oriented and discharged through a vibratory feeder, and the robot arm integrated nut gripper picks up nut 41 and places it above the first screw 44, and the servo tightening mechanism completes the pre-tightening process of nut 41.

[0224] Each mechanism is reset, the stop is reset, and tooling plate 64 flows into the pre-tightening process.

[0225] This pre-tightening process is based on the nut tightening device 18. Specifically, the servo hydraulic press presses down along the Z-axis to a specific pressure at a designated position, compacting the sub-fuel stack. The servo tightening shaft simultaneously tightens the nut 41 diagonally, achieving a high-torque final tightening of the nut 41.

[0226] All mechanisms are reset, and the tooling plates flow into the next process.

[0227] At this point, the assembly of one sub-pile is complete.

[0228] Step 5: Flip the sub-pack 180° to flip the intermediate plate 50 180°, then execute step 4 to complete the assembly of the other sub-pack.

[0229] In the assembly process of another sub-pile, the first screw 44 is replaced by the second screw 43.

[0230] The flipping process, based on the sub-stacking flipping device 19, specifically includes:

[0231] Before flowing into this workstation, empty tooling plates and tooling plates containing sub-chargers are identified by RFID. Tooling plates containing sub-chargers flow into this workstation.

[0232] Once the tooling plate is in place and stopped, the lifting mechanism of the sub-stacking equipment 19 lifts and positions the tooling plate.

[0233] The Z-axis servo mechanism descends, the fuel cell stack grippers clamp the sub-fuel cell stack, and the Z-axis servo mechanism rises to a specified distance, then the sub-fuel cell stack is rotated 180° via the side-flipping mechanism. Holes in the tooling plate allow for clearance from the first screw 44.

[0234] The Z-axis servo mechanism descends to the tooling plate position, the fuel cell clamps release the sub-fuel cell, and the Z-axis servo mechanism rises to the safe position.

[0235] Each mechanism is reset, the stop is reset, and the tooling plate flows into the next process.

[0236] Step 6: Tighten the two sub-fuel stacks using the tie rods to form fuel stack product 74. (Example) Figure 3 As shown.

[0237] Step 61: Insert the four tie rods into the corresponding tension holes of the sub-fuel stacks, with the tie rods passing through two sub-fuel stacks.

[0238] Step 62: Pre-tighten one end of the pull rod to the end plate 46 of the first sub-pile formed, install the spring 58, and tighten the nut 41. This process is similar to steps 48-49.

[0239] During the pre-tightening process of the pull rod, due to the pre-setting in step 2, the washer 53 and nut 45 are fitted and tightened onto the pull rod.

[0240] Figure 3 After flipping it 180 degrees, it becomes the state after step 62 is completed.

[0241] Step 63: Flip it 180 degrees again to form Figure 3 The state.

[0242] Step 7, Offline. This process is based on the finished product offline equipment 20, where the positioning rod 72 is finally extracted from the sub-fuel stack.

[0243] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the present invention. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and content disclosed in the present invention without departing from the scope of the present invention shall be deemed to have remained within the protection scope of the present invention.

Claims

1. An automated assembly system for an energy storage battery stack, characterized in that, include: Ring line one, used for assembling inlet and outlet liquid plate assemblies, includes: The inlet and outlet liquid plate feeding device (01) is used to complete the feeding of the inlet and outlet liquid plates (47); The sealing ring feeding and adhesive application equipment (02) performs the sealing ring feeding and inlet / outlet liquid plate 47 adhesive application process; The process of mounting the loop frame (52) on the line using the loop frame mounting equipment (03), transferring and applying adhesive, and finally pasting it onto the groove on the inlet / outlet liquid plate (47); The copper plate online equipment (04) is used to put the copper plate (51) online, and then transfer and attach the adhesive, and finally attach it to the inlet and outlet liquid plate (47). The inlet and outlet plate assembly unloading equipment (05) performs the process of unloading the inlet and outlet plate assemblies; Ring 2, used for assembling fuel cell stack products (74), includes: Nut and washer pre-setting equipment (06) performs the pre-setting process of nut two (45) and washer two (53); The intermediate plate is put into the online equipment (07) and the intermediate plate (50) is put into the online equipment and transferred to the tooling plate on the second ring line; The process of putting the inlet and outlet liquid plate assembly into line equipment 1 (08) and transferring the intermediate inlet and outlet liquid plate assembly to the intermediate plate (50) is carried out. The end electrode plate frame online equipment (09) performs the end electrode plate frame (57) online process; The carbon felt loading equipment (10) performs the process of loading carbon felt onto the grid and transferring it to the end electrode plate frame (57); The ion membrane online equipment (11) performs the ion membrane online process; The three-in-one plate and frame online equipment (12) performs the three-in-one plate and frame (56) online process; Equipment 2 (13) for loading inlet and outlet liquid plate assemblies into the line performs the process of loading inlet and outlet liquid plate assemblies into the line at the end. The end plate is put into the online equipment (14) to carry out the process of putting the end plate (46) into the online system; The screw spring appearance plate online equipment (15) carries out the online and installation process of the second screw (43), the first screw (44), the spring (58), and the appearance plate (48); The screw tightening device (16) performs the tightening process of the first screw (44) and the second screw (43); The nut loading equipment (17) performs the process of loading nut one (41) onto the line; The nut tightening device (18) performs the pre-tightening process of nut one (41); Sub-stacking device (19) for flipping sub-stacking devices; Finished product off-line equipment (20) is used to transfer fuel cell stack products (74) out of loop line two.

2. An automated assembly process for an energy storage battery stack, based on the automated assembly system for the energy storage battery stack as described in claim 1, characterized in that, Includes the following steps: Step 1: Assemble the inlet and outlet liquid plate assemblies based on loop line 1; Step 2, the pre-installation process of nut two (45) and washer two (53) provides a process basis for the subsequent assembly and tightening of fuel cell stack products (74); Step 3: The intermediate plate (50) is put on the line and transferred to the tooling plate on the second loop line; Step 4: Assemble the sub-pile, which specifically includes: Step 41: The intermediate liquid inlet / outlet plate assembly is put into operation and transferred to the intermediate plate (50). Step 42: The end electrode plate frame (57) is put online and transferred to the surface of the middle liquid inlet / outlet plate assembly; Step 43: The single cell loading and stacking process is completed, including the loading and stacking of carbon felt (54), ion membrane (55) and three-in-one plate frame (56); Step 44: The end electrode plate frame (57) is wired and transferred to the surface of the last single cell; Step 45: The liquid outlet plate assembly at the end is put online and grabbed to the lower electrode plate frame at the end (57). Step 46: The end plate (46) is put online and transferred to the inlet / outlet liquid plate assembly at the end; Step 47: The first screw (44), spring (58), and exterior panel (48) are put into place and installed; Step 48: Tighten the first screw (44) to the intermediate plate (50); Step 49: Attach nut one (41) and pre-tighten it to secure the sub-pile; Step 5: Flip the sub-pack 180° to flip the intermediate plate (50) 180°, then perform step 4 to complete the assembly of the other sub-pack; Step 6: Tighten the two sub-fuel stacks with the pull rods to form the fuel stack product (74). Step 7: Log off.

3. The automated assembly process for the energy storage battery stack according to claim 2, characterized in that, Step 1 specifically includes: Step 11: Load material onto the inlet / outlet liquid plate (47) and transfer it to the tooling plate (64) on the first loop line. Step 12: Load the sealing ring and apply adhesive to the inlet / outlet liquid plate (47); Step 13: The loop frame 52 is placed on the line and the adhesive is transferred and finally pasted onto the groove on the liquid inlet / outlet plate (47); Step 14: The copper plate 51 is put on the line and the adhesive is transferred and then pasted onto the inlet / outlet liquid plate (47); Step 15: Inlet / outlet liquid plate assembly is rolled off the production line.

4. The automated assembly process for the energy storage battery stack according to claim 2, characterized in that, Step 43 specifically includes: Step 431: The carbon felt is put on the line and transferred to the end electrode plate frame (57). Step 432: The ion exchange membrane is put online and transferred to the carbon felt (54) in step 431. Step 433: The three-in-one plate frame (56) with carbon felt glued on both sides is wired and transferred to the ion membrane (55) in step 433. Step 434, repeat steps 431~433 to complete the loading and stacking of the next single cell.

5. The automated assembly process for the energy storage battery stack according to claim 2, characterized in that, The flipping process in step 5 specifically includes: Before entering the workstation, empty tooling plates and tooling plates containing sub-chargers are identified by RFID; tooling plates containing sub-chargers enter the workstation. When the tooling plate is in place and stopped, the lifting mechanism of the sub-stacking equipment (19) lifts and positions the tooling plate; The Z-axis servo mechanism descends, the fuel cell gripper clamps the sub-fuel cell, the Z-axis servo mechanism rises to a specified distance, and the sub-fuel cell is flipped 180° by the side flipping mechanism.

6. The automated assembly process for the energy storage battery stack according to claim 2, characterized in that, Step 6 specifically includes: Step 61: Insert the tie rod into the corresponding tension hole of the sub-pack, with the tie rod passing through both sub-packs; Step 62: Pre-tighten one end of the pull rod to the end plate (46) of the first sub-pile formed, install the spring (58), and tighten the nut (41). During the pre-tightening process of the tie rod, washer 2 (53) and nut 2 (45) are fitted onto the tie rod; Step 63: Flip it 180 degrees again.

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