Energy storage box production line and production process

Abstract

The application discloses a kind of energy storage box production line and production process, energy storage box production line includes conveying line, several handling assembly mechanisms, installation equipment, into box equipment and testing equipment, installation equipment includes handling installation device and locking device along the conveying line conveying direction arrangement, handling installation device side is provided with feeding device, into box equipment includes the feeding device being arranged at the side of conveying line and the into box device being arranged between conveying line and feeding device, testing equipment includes several kinds of test units arranged;Energy storage box production process includes the installation of internal parts of energy storage box, the installation of support, the installation of battery pack and the test after assembly.The application integrates assembly, installation, into box and test station, forms continuous flow operation, support installation precision is high, battery pack is accurately matched with support surface when into box, double guarantees installation consistency, test efficiency and safety are high, overall production cycle is short.

Description

Technical Field

[0001] This invention belongs to the field of energy storage box manufacturing technology, and in particular relates to an energy storage box production line and manufacturing process. Background Technology

[0002] With the rapid development of the new energy industry, the market demand for energy storage boxes, as the core carrier of electrochemical energy storage systems, continues to grow. Energy storage boxes require the integration and installation of multiple components, including brackets to support battery packs, battery packs themselves, air conditioners, liquid coolers, integrated cabinets, and high-voltage boxes. They also need to complete pipeline laying, wiring harness connections, and various electrical performance tests. Among these, the brackets, as the basic structural components supporting the battery packs, directly determine the smoothness of battery pack installation, range consistency, and long-term operational safety. Therefore, building an efficient, stable, and high-precision automated assembly line for energy storage boxes has become an urgent need in the industry.

[0003] Currently, some related solutions have emerged in the existing technology. For example, Chinese utility model patent authorization announcement number CN220612967U discloses an energy storage container assembly production line. This solution uses straddle carriers to move containers between workstations, uses lifting hydraulic trucks to install battery racks, and uses loading robots to install battery packs, thus achieving automated assembly to a certain extent. However, the above-mentioned existing technologies still have the following technical defects: (1) Low turnover efficiency and insufficient integration of production line: The solution uses straddle carriers to move containers back and forth between workstations. It is a serial handling mode. The straddle carriers have long back and forth travel and long waiting time, making it difficult to form continuous flow operation. In addition, a dedicated channel needs to be reserved, which occupies a large area and has low space utilization. (2) The installation accuracy of the bracket is difficult to guarantee: The solution uses a lifting hydraulic truck to put the battery rack in as a whole, but the bracket used to support the battery pack needs to be installed in multiple layers and columns with precision. The whole-in placement method makes it difficult to guarantee the positional accuracy of each bracket installation point. It lacks a deviation compensation and calibration mechanism, which can easily lead to difficulties in putting the battery pack into the box, non-compliance with the range, or even the risk of loosening. (3) Insufficient adaptability of battery pack feeding and box entry: This solution only realizes the basic grabbing and putting functions, lacks system design for feeding efficiency, box entry posture adjustment and high-precision alignment with the bracket, and is difficult to be compatible with the size differences of different models of energy storage boxes, and the equipment has poor flexibility. (4) The test section is configured in a single way and cannot be operated in parallel: The solution only sets up an EOL test station, while actual production requires a variety of tests such as air tightness, liquid injection, safety regulations, power-on, and capacity. Some of these tests take a long time, and the single-station serial mode is prone to forming a production bottleneck, resulting in serious backlog of work-in-process. In summary, existing technologies still have significant shortcomings in terms of production line efficiency, bracket installation accuracy, equipment flexibility, parallel testing capabilities, and ease of bottom wiring, requiring further improvement to address one or more of the aforementioned issues. Therefore, it is necessary to provide an energy storage box production line and manufacturing process to solve these technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide an energy storage box production line that integrates assembly, installation, box loading, and testing stations to form a continuous flow operation. The support bracket has high installation accuracy, and the battery pack is precisely matched with the support surface of the bracket when it is loaded into the box, thus doubly ensuring installation consistency. The testing efficiency and safety are high, and the overall production cycle is short.

[0005] This invention achieves the above objective through the following technical solution: an energy storage box production line, comprising: The conveyor line is equipped with assembly stations, installation stations, box-loading stations, and testing stations along its conveying direction. A plurality of handling and assembly mechanisms are arranged on the side of the conveyor line and along the conveying direction of the conveyor line; The installation equipment is set at the installation station. The installation equipment includes a handling installation device and a locking device arranged along the conveying direction of the conveyor line. A feeding device is provided on one side of the handling installation device. The handling installation device includes a first manipulator and a gripping mechanism provided at the movable end of the first manipulator. The locking device includes a drive unit, an installation cantilever connected to the movable end of the drive unit, and a locking unit and a straightening unit provided on the installation cantilever. The box-in equipment is set at the box-in station. The box-in equipment includes a feeding device set on one side of the conveyor line and a box-in device set between the conveyor line and the feeding device. The box-in device includes a conveying and pushing unit and a lifting unit that drives the conveying and pushing unit to perform lifting and lowering actions. The two sides of the conveying and pushing unit are hinged to the lifting unit. The testing equipment is set up at the testing station, and the testing equipment includes several types of testing units arranged in an array.

[0006] Furthermore, the plurality of transport and assembly mechanisms includes at least one or more of a first transport and assembly mechanism, a second transport and assembly mechanism, a third transport and assembly mechanism, and a fourth transport and assembly mechanism, wherein the fourth transport and assembly mechanism is disposed between the installation equipment and the box-in equipment, a fifth transport and assembly mechanism is disposed between the first transport and assembly mechanism and the second transport and assembly mechanism, and a sixth transport and assembly mechanism is disposed between the third transport and assembly mechanism and the fourth transport and assembly mechanism.

[0007] Furthermore, the assembly station is provided with at least one lifting worktable, and at least one of the lifting worktables is located on the conveying path of the conveyor line. The conveyor line is provided with an clearance opening for installing the lifting worktable. The lifting worktable includes a support base, a first lifting drive mechanism for driving the support base to move up and down, a second lifting drive mechanism located on the support base, and a fence frame located on the outer periphery of the support base and driven to move up and down by the second lifting drive mechanism. The support base has an initial height and a working height. When the support base rises to the working height, the top surface of the fence frame is higher than the upper surface of the support base to form a enclosure structure. When the support base is at the initial height, the top surface of the fence frame is not higher than the upper surface of the support base.

[0008] Furthermore, the feeding device includes a material distribution and conveying unit and a first conveying mechanism disposed at one end of the material distribution and conveying unit. The material distribution and conveying unit includes a first material distribution and conveying unit and a second material distribution and conveying unit stacked on top of each other and conveying in the same direction. One end of the first material distribution and conveying unit and the second material distribution and conveying unit is a material discharge area and the other end is a material pick-up area. The ends of the first material distribution and conveying unit and the second material distribution and conveying unit are aligned at the material discharge area. The length of the first material distribution and conveying unit is less than that of the second material distribution and conveying unit, so that the right end of the second material distribution and conveying unit protrudes out of the first material distribution and conveying unit, thereby forming an unobstructed material pick-up clearance area above the right end of the second material distribution and conveying unit.

[0009] Furthermore, the gripping mechanism includes a first support plate disposed at the movable end of the first robotic arm, a lifting support plate that is elastically floated vertically at the bottom of the first support plate by a first elastic unit, and a movable plate that is elastically floated horizontally on one side of the lifting support plate by a second elastic unit. The movable plate is provided with a lower gripper, an upper gripper, and a first clamping drive unit and / or a second clamping drive unit. The lower gripper and the upper gripper are vertically opposite each other and disposed on the side away from the first support plate. The movable plate is provided with a side limiting block near the lower gripper.

[0010] Furthermore, the mounting cantilever extends along a first direction, and the locking unit includes a base plate, a first drive module disposed on the base plate, a first support frame driven by the first drive module to perform lifting and lowering actions, and a first locking gun and a second locking gun disposed on the first support frame and capable of moving along a second direction. The first locking gun and the second locking gun both extend in the second direction and face opposite directions. The base plate is driven by a first drive member to move along the first direction. The alignment unit is disposed on the mounting cantilever, and the alignment unit includes a second drive module, a second support frame driven by the second drive module to move along the second direction, an alignment drive module disposed on the second support frame, and a first alignment component and a second alignment component connected to both ends of the alignment drive module.

[0011] Furthermore, the feeding device includes a support frame, a first conveying mechanism disposed on one side of the support frame, and a second transport mechanism disposed above the first conveying mechanism. The second transport mechanism includes a gantry frame, a feeding drive module disposed on the gantry frame, and a first mounting frame connected to the movable end of the feeding drive module. The first mounting frame is provided with a first transport unit and a second transport unit.

[0012] Furthermore, the lifting unit includes a frame, a third drive module and a fourth drive module disposed opposite to each other inside the frame, a first lifting plate connected to the movable end of the third drive module, and a second lifting plate connected to the movable end of the fourth drive module; the conveying and pushing unit includes a first base hinged to the first lifting plate and the second lifting plate on the left and right sides respectively, a second mounting frame movably disposed on the first base, a second conveying mechanism disposed on the second mounting frame, a pushing mechanism disposed on the side of the second conveying mechanism, and a pushing drive assembly that drives the pushing mechanism to reciprocate along a first direction.

[0013] Furthermore, the testing equipment is located at the output end of the conveyor line. The testing equipment includes a feeding conveyor line that conveys along a second direction, a first positioning conveyor line and a second positioning conveyor line that are parallel to the feeding conveyor line and located on both sides of the feeding conveyor line, a transfer conveyor line that conveys along the second direction, and a transfer drive module that drives the transfer conveyor line to move along a first direction to dock with the first positioning conveyor line, the feeding conveyor line, or the second positioning conveyor line. Several types of testing units are arranged on the sides of the first positioning conveyor line and the second positioning conveyor line. The several types of testing units include at least one or more of the following: airtightness testing unit, liquid injection testing unit, safety testing unit, power-on testing unit, and capacity testing unit.

[0014] Furthermore, both the first positioning conveyor line and the second positioning conveyor line are provided with a wire feeding mechanism at their bottom. The wire feeding mechanism includes a third mounting frame, a lifting drive component mounted on the third mounting frame, a first mounting base driven by the lifting drive component to perform lifting and lowering movements, and at least one plug-in wire mounted on the first mounting base. The upper end of the first mounting base is provided with at least one positioning hole, and the side of the first mounting base is provided with a receiving opening. At least one plug-in wire is positioned on the first mounting base. The plug-in wire includes a wire and a conductive terminal connected to the upper end of the wire. The upper end of the plug-in wire passes through the positioning hole, and the conductive terminal is located above the first mounting base. The wire is received inside the first mounting base and leads out from the receiving opening to connect with the test unit.

[0015] Another object of the present invention is to provide a manufacturing process for an energy storage box, which includes the following steps: Step S1: Place the empty energy storage box on the conveyor line, and the conveyor line will transport it to the assembly station. Several of the transport and assembly mechanisms will sequentially transport and assemble the air conditioner, liquid chiller, and integrated cabinet into the energy storage box. Step S2: The conveyor line transports the assembled energy storage box to the installation station. The feeding device provides a bracket. The first robotic arm drives the clamping mechanism to clamp the bracket from the feeding device and transport the bracket to the predetermined installation position inside the energy storage box. The drive unit drives the installation cantilever to extend into the energy storage box. The alignment unit aligns and calibrates the bracket that has been placed in place. The locking unit locks and fixes the bracket to the inner wall of the energy storage box. Step S3: The conveyor line continues to transport the energy storage box with the assembled bracket to the rear, and the handling and assembly mechanism transports the high-voltage box and installs it into the designated position inside the energy storage box. Step S4: The conveyor line transports the energy storage box with the bracket and high voltage box installed to the box entry station. The feeding device transports the battery pack to the predetermined position. The conveying and pushing unit receives the battery pack from the feeding device. The lifting unit adjusts the left and right angles of the conveying and pushing unit. The lifting unit drives the conveying and pushing unit to rise and fall into place and pushes the battery pack into the bracket that has been installed inside the energy storage box. The bracket supports the battery pack. Step S5: The conveyor line will continue to transport the energy storage box after the battery pack has been placed into the box. During this process, the battery pack and the high voltage box will be connected by wiring harness, and the triode circuit will be installed at the same time. Step S6: The conveyor line transports the energy storage box with completed wiring and pipeline installation to the testing station. Several types of testing units arranged in sequence or in parallel perform various performance tests on the energy storage box, including airtightness test, liquid injection test, safety test, power-on test and capacity test. The energy storage box that has completed all tests is output and stored.

[0016] Compared with the prior art, the beneficial effects of the energy storage box production line and production process of the present invention are as follows: (1) By setting up assembly stations, installation stations, box-entry stations and testing stations along the conveyor line in sequence, and configuring corresponding handling and assembly mechanisms, installation equipment, box-entry equipment and testing equipment containing multiple types of testing units, a continuous production line is formed from empty box loading to automated assembly of multiple parts, from high-precision bracket installation to flexible box-entry of battery packs, and from wire harness pipeline connection to parallel testing of multiple items. This realizes the full-process rhythmic production and significantly improves the integration, operational stability and comprehensive capacity of the entire line. (2) In the bracket installation process, the transport and installation device and the locking device work together. The transport and installation device adopts a clamping mechanism that has both vertical and horizontal passive elastic floating to realize the flexible picking and placement and initial positioning of the bracket. The locking device integrates a correction unit to actively calibrate the bracket and then completes the precise fixing by a two-way locking gun. Thus, without the need for manual intervention, the installation position consistency and locking reliability of multi-layer and multi-column brackets are guaranteed, laying a high-precision foundation for the smooth entry of the battery pack into the box and long-term safe operation. (3) In the battery pack loading process, the feeding device and the loading device are closely connected. The feeding device adopts a dual handling unit structure that can simultaneously handle the battery pack and the support frame to realize continuous automatic feeding of multi-layer stacked battery packs. The loading device adopts an articulated conveying and pushing unit that can independently control the lifting height on both sides to adapt to the small height difference of the support frame, ensuring the precise matching of the battery pack loading posture with the support surface of the support frame, effectively avoiding loading jamming or tilting, and improving loading smoothness and assembly quality. (4) The test process adopts a double-sided parallel layout, that is, the first positioning conveyor line and the second positioning conveyor line are set on both sides of the feeding conveyor line respectively. Each positioning conveyor line is arranged with multiple test units such as air tightness, liquid injection, safety regulations, power-on and capacity on the side. It is also combined with the transfer conveyor line that can be moved and docked to realize the flexible scheduling of the energy storage box between different test areas, thereby supporting multiple energy storage boxes to be tested in parallel at different workstations on both sides at the same time, which greatly improves the test throughput and effectively eliminates the efficiency bottleneck of single-channel serial testing. (5) An innovative lifting wire feeding mechanism is set at the bottom of the test station. This mechanism can accurately insert the conductive terminals on the plug-in wire into the wire passage at the bottom of the energy storage box from bottom to top, so that the operator or robot can directly complete the test line connection inside the energy storage box without flipping the box or bending over to reach the bottom. This not only protects the wire harness from squeezing and wear, but also improves the convenience and safety of the wiring operation, while ensuring the stability and reliability of the test signal or high current transmission. (6) A liftable workbench is provided at the assembly station. When the workbench rises to the working height, the guardrail automatically rises to form a safety barrier, which effectively prevents personnel from falling or materials from slipping during high-altitude operations. When it falls to the initial height, the guardrail retracts and the upper surface of the workbench is flush with the conveyor line, which does not obstruct the passage of the workshop. This achieves an organic unity of work safety protection and efficient use of workshop space. (7) By sequentially executing steps such as empty box loading and component assembly, bracket handling and locking installation, automatic battery pack loading and pushing into the box, wire harness and pipeline connection, and multi-item parallel testing, each process flows sequentially along the conveyor line and is closely connected, avoiding the back-and-forth handling of materials across areas and waiting for idleness. At the same time, multiple time-consuming testing sections are handled in a concentrated manner using parallel operation, thus forming a standardized and rhythmic production process, effectively shortening the production cycle of a single product, improving the consistency of batch products, and reducing quality fluctuations caused by human intervention. Attached Figure Description

[0017] Figure 1 This is a top view of the energy storage box production line according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the assembly station, installation station, and box-loading station according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the test station structure according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the feeding device according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the structure of the first conveying unit and the second conveying unit on the feeding device according to Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the box-loading device according to Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the lifting unit and the conveying and pushing unit according to Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the conveying and pushing unit according to Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the conveying and pushing unit from another angle according to Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of the pushing mechanism on the conveying and pushing unit according to Embodiment 1 of the present invention; Figure 11 This is a schematic diagram of the locking device according to Embodiment 1 of the present invention; Figure 12 This is a schematic diagram of the locking device with a hidden drive unit and mounting cantilever structure according to Embodiment 1 of the present invention; Figure 13 This is a schematic diagram of the locking unit according to Embodiment 1 of the present invention; Figure 14 This is a schematic diagram of the corrective unit in Embodiment 1 of the present invention; Figure 15 This is a schematic diagram of the handling and installation device according to Embodiment 1 of the present invention; Figure 16 This is a schematic diagram of the clamping mechanism for gripping the bracket according to Embodiment 1 of the present invention; Figure 17 This is a schematic diagram of the structure of the first support plate, the lifting support plate, and the first elastic unit on the clamping mechanism according to Embodiment 1 of the present invention; Figure 18 This is a schematic diagram of the structure of the clamping mechanism that hides the first support plate and the first elastic unit in Embodiment 1 of the present invention; Figure 19 This is a schematic diagram of the structure of the first material distribution and conveying unit and the second material distribution and conveying unit in Embodiment 1 of the present invention; Figure 20 This is a schematic diagram of the first handling mechanism structure according to Embodiment 1 of the present invention; Figure 21 This is a schematic diagram of the handling and assembly mechanism according to Embodiment 1 of the present invention; Figure 22 This is a schematic diagram of the wire feeding mechanism according to Embodiment 1 of the present invention; Figure 23 This is a schematic diagram of the structure of the first mounting base on the wire feeding mechanism according to Embodiment 1 of the present invention; Figure 24 This is a schematic diagram of the transfer conveyor line and transfer drive module according to Embodiment 1 of the present invention; Figure 25 This is a schematic diagram of the lifting worktable according to Embodiment 1 of the present invention; Figure 26 This is a schematic diagram of the structure of the support base and the second lifting drive mechanism in Embodiment 1 of the present invention; Figure 27 This is a schematic diagram of the energy storage box according to Embodiment 1 of the present invention; The numbers in the diagram represent: Energy storage box production line - 100; installation equipment - 30; box loading equipment - 40; Energy storage box-200, bracket-201, first type bracket-201a, second type bracket-201b, vertical mounting part-2011, horizontal support part-2012, mounting hole-2013, air conditioner-205, liquid chiller-206, integrated cabinet-207, partition-209; battery pack-300; feeding device-1, bearing frame-11, positioning block-113, clearance notch-114, first conveying mechanism-12, roller conveyor line-121 Correction module-122, second conveying mechanism-13, feeding drive module-131, first mounting bracket-132, first conveying unit-133, first clamping hook-1331, second clamping hook-1332, first drive assembly-1333, second conveying unit-134, first clamping arm-1341, second clamping arm-1342, second drive assembly-1343, gantry frame-135, proximity switch-136, detection fiber optic cable-137;Box loading device-2, lifting unit-2a, conveying and pushing unit-2b, frame-21, box loading drive module-211, X-axis drive motor-2111, first ground rail-2112, third drive module-22, fourth drive module-23, first lifting plate-24, second lifting plate-25, first base-26, first hinge module-261, first hinge seat-2611, second hinge seat-2612, first support shaft-2613, second hinge module-262, third hinge seat-2621, fourth hinge seat-2622, connecting rod -2623, Second Support Shaft -2624, Third Support Shaft -2625, Second Drive Motor -263, Second Mounting Bracket -27, Vision Camera -271, Second Conveying Mechanism -28, First Conveying Module -281, Second Conveying Module -282, Fifth Drive Module -283, Blocking Assembly -284, Through-beam Fiber -285, Pushing Mechanism -29, Pushing Component -291, Sixth Drive Module -292, Second Mounting Base -2921, Fourth Support Shaft -2922, Swinging Base -2923, Fifth Support Shaft -2924, Movement Rod-2925, Push drive component-2926, Push-in drive assembly-210, First drive motor-2101, Transmission screw-2102, Locking device-3, Drive unit-31, Mounting cantilever-32, Locking unit-33, Base plate-331, First drive module-332, First support frame-333, First locking gun-334, Second locking gun-335, First drive component-336, Second drive component-337, Third drive component-338, Second support plate-339, First camera-3310, Second camera-3311 Correction unit-34, second drive module-341, second support frame-342, correction drive module-343, third drive motor-3431, first rotating shaft-3432, second rotating shaft-3433, third rotating shaft-3434, first gear-3435, second gear-3436, first correction assembly-344, first upper correction component-3441, first lower correction component-3442, second correction assembly-345, second upper correction component-3451, second lower correction component-3452, feeding box-35, conveying pipe-36;Handling and installation device-4, clamping mechanism-4a, first robotic arm-4b, first support plate-41, lifting support plate-42, first elastic unit-43, first connecting seat-431, hanging rod-432, elastic element-433, second connecting seat-434, moving seat-435, first slide rail-4351, sixth support shaft-436, moving plate-44, second elastic unit-45, lower gripper-46, upper gripper-47, first clamping drive unit-48, clamping drive element-481, push rod-482, seventh support shaft-483, swing element-484, eighth support shaft-485, moving... Moving frame-486, swing shaft-487, side limit block-49, position drive module-410, position drive motor-4101, second ground rail-4102; feeding device-5, first material distribution and conveying unit-5a, second material distribution and conveying unit-5b, unloading area-51, picking area-52, picking clearance area-53, conveyor drive motor-54, first transmission shaft-55, first transmission belt-56, limit block-561, conveyor frame-57, blocking component-571, sensor-572, alignment plate-573, alignment cylinder-574, first handling mechanism-58, second robotic arm-581, the first Three-support frame - 582, adsorption component - 583, clamping assembly - 584, clamping claw - 5841, clamping cylinder - 5842; conveyor line - 6, assembly station - 6a, installation station - 6b, box-in station - 6c, testing station - 6d, roller - 61, support plate - 62, clearance opening - 65, lifting worktable - 69, support seat - 691, first lifting drive mechanism - 692, second lifting drive mechanism - 693, fourth drive motor - 6931, double extension shaft - 6932, second transmission shaft - 6933, third transmission shaft - 6934, lifting device - 6935, lifting screw - 6936 , Corner transmission component-6937, fence frame-694; Handling assembly mechanism-7, first handling assembly mechanism-7a, second handling assembly mechanism-7b, third handling assembly mechanism-7c, fourth handling assembly mechanism-7d, fifth handling assembly mechanism-7e, sixth handling assembly mechanism-7f; Wire feeding mechanism-8, third mounting bracket-81, second slider-812, lifting drive component-82, first mounting base-83, positioning hole-831, receiving opening-832, hollow cavity-833, second slide rail-834, plug-in wire-84, wire-841, conductive terminal-842, limit seat-85;Testing equipment-9, unloading conveyor line-91, first positioning conveyor line-92, second positioning conveyor line-93, transfer conveyor line-94, transfer drive module-95, second base-951, fifth drive motor-952, second transmission belt-953, roller-954, track-955, testing unit-96, airtightness testing unit-961, liquid injection testing unit-962, safety testing unit-963, power-on testing unit-964, capacity testing unit-965, clearance passage-97, wiring station-98. Detailed Implementation

[0018] Example 1: Please refer to Figures 1-27 A production line 100 for an energy storage box is provided, comprising: Conveyor line 6, along the conveying direction of conveyor line 6, is provided with assembly station 6a, installation station 6b, boxing station 6c and testing station 6d; Several handling and assembly mechanisms 7 are arranged on the side of the conveyor line 6 and along the conveying direction of the conveyor line 6; Installation equipment 30 is set on installation station 6b. Installation equipment 30 includes a handling installation device 4 and a locking device 3 arranged along the conveying direction of the conveyor line 6. A feeding device 5 is provided on one side of the handling installation device 4. Boxing equipment 40 is set on boxing station 6c. Boxing equipment 40 includes feeding device 1 set on one side of conveyor line 6 and boxing device 2 set between conveyor line 6 and feeding device 1. Test equipment 9 is set on test station 6d and includes several types of test units 96 arranged in a row.

[0019] Because the energy storage box 200 is large and heavy, the conveyor line 6 is a roller conveyor line. The conveying surface of the roller conveyor line is flush with the ground, which realizes the unobstructed connection between the conveyor line and the ground, and facilitates the loading and unloading of the heavy-duty energy storage box 200. Moreover, a support plate 62 is arranged between two adjacent rollers 61. The upper surface of the support plate 62 is lower than the conveying surface of the roller 61 by a set height, for example, 2~20mm, or other heights. The support plate 62 provides a passage for personnel when the conveyor line is not working. The entire roller conveyor line can also serve as a workshop passage, improving space utilization. At the same time, it prevents foreign objects from falling in during the conveying process, ensuring safety and facilitating cleaning.

[0020] The plurality of handling and assembly mechanisms 7 include a first handling and assembly mechanism 7a for assembling the air conditioner 205 into the energy storage box 200, a second handling and assembly mechanism 7b for assembling the liquid chiller 206 into the energy storage box 200, a third handling and assembly mechanism 7c for assembling the integrated cabinet 207 into the energy storage box 200, and a fourth handling and assembly mechanism 7d for assembling the high-voltage box into the energy storage box 200. The fourth handling and assembly mechanism 7d is located between the installation equipment 30 and the box-entry equipment 40. Air conditioner 205, liquid chiller 206, and integrated cabinet 207 are installed at the left or right end of energy storage box 200. After the first handling and assembly mechanism 7a, the second handling and assembly mechanism 7b, and the third handling and assembly mechanism 7c respectively position and place air conditioner 205, liquid chiller 206, and integrated cabinet 207, manual installation of primary pipelines, secondary pipelines, and cables is still required inside energy storage box 200. However, the left or right end of energy storage box 200 is located directly above conveyor line 6, which is inconvenient for direct operation. Therefore, at least one lifting worktable 69 is set on assembly station 6a. At least one lifting worktable 69 is set on the conveying path of conveyor line 6. When multiple lifting worktables 69 are set, they are arranged sequentially along the conveying direction of conveyor line 6. The conveyor line 6 is provided with clearance openings 65 for installing lifting worktables 69. Because the energy storage box 200 has a partition 209 inside to separate some components, but the partition 209 will interfere with the routing of secondary pipelines and cables, a fifth handling assembly mechanism 7e is set between the first handling assembly mechanism 7a and the second handling assembly mechanism 7b to remove the partition 209. After the secondary pipelines and cables are installed, the partition 209 is reassembled into its original position. Therefore, a sixth handling assembly mechanism 7f is set between the third handling assembly mechanism 7c and the fourth handling assembly mechanism 7d to reassemble the partition 209 into the energy storage box 200. The structures of the first handling assembly mechanism 7a, the second handling assembly mechanism 7b, the third handling assembly mechanism 7c, the fourth handling assembly mechanism 7d, the fifth handling assembly mechanism 7e, and the sixth handling assembly mechanism 7f are similar and all are assisted manipulators. The structure of the drive end of the assisted manipulator is basically the same, only the control gripper at the moving end of the manipulator is different. The control gripper is adapted to different materials, such as clamping gripper and suction gripper, which are existing technologies and will not be described in detail here. The assistive robotic arm is existing technology, or you can refer to the structure of the assistive robotic arm disclosed in Chinese Utility Model Patent Publication No. CN222290190U, which will not be described in detail here.

[0021] The lifting worktable 69 includes a support base 691, a first lifting drive mechanism 692 that drives the support base 691 to move up and down, a second lifting drive mechanism 693 disposed on the support base 691, and a fence frame 694 disposed on the outer periphery of the support base 691 and driven to move up and down by the second lifting drive mechanism 693. The support base 691 has an initial height and a working height. When the first lifting drive mechanism 692 drives the support base 691 to rise to the working height, the second lifting drive mechanism 693 drives the fence frame 694 to rise, and the top surface of the fence frame 694 is higher than the upper surface of the support base 691 to form a barrier structure, thereby automatically forming a complete physical enclosure at a high position, effectively preventing personnel from falling accidentally or materials from slipping, and ensuring the safety of high-altitude operations. When the support base 691 is at the initial height, the top surface of the fence frame 694 is not higher than the upper surface of the support base 691. Preferably, the top surface of the fence frame 694, the upper surface of the support base 691, and the upper surface of the support plate 62 are flush, providing a personnel passage together with the conveyor line 6. The first lifting drive mechanism 692 is a scissor lift mechanism, which is existing technology, and its specific structure and working principle will not be described in detail here. The second lifting drive mechanism 693 includes a fourth drive motor 6931 mounted on the support base 691, a double extension shaft 6932 mounted on the fourth drive motor 6931, and a second transmission shaft 6933 and a third transmission shaft 6934 horizontally mounted at both ends of the double extension shaft 6932. The second transmission shaft 6933 and the third transmission shaft 6934 are parallel to each other and perpendicular to the double extension shaft 6932. Each end of the second transmission shaft 6933 and the third transmission shaft 6934 is equipped with a lifter 6935, and each lifter 6935 is vertically equipped with a lifting screw 6936. The top of the lifting screw 6936 is connected to the upper end of the fence frame 694. The second transmission shaft 6933 and the third transmission shaft 6934 are both connected to the double extension shaft 6932 through a corner transmission component 6937. The lifting device 6935, the lifting screw 6936, and the corner transmission component 6937 are all existing technologies. The structure of the lifting mechanism for the lifting worktable of an aluminum profile polishing machine disclosed in Chinese Utility Model Patent Publication No. CN213647108U will not be described in detail here.

[0022] The feeding device 5 includes a material distribution and conveying unit and a first conveying mechanism 58 disposed at one end of the material distribution and conveying unit. The material distribution and conveying unit includes a first material distribution and conveying unit 5a that carries and conveys a first type of support 201a and a second material distribution and conveying unit 5b that carries and conveys a second type of support 201b. The support 201 is L-shaped and includes a vertical mounting part 2011 and a horizontal support part 2012 that are perpendicular to each other. The vertical mounting part 2011 is used for fixed installation with the inner wall of the energy storage box 200, and the horizontal support part 2012 is used for supporting the bottom edge of the battery pack. The vertical mounting part 2011 is provided with mounting holes 2013. Some of the mounting holes 2013 cooperate with hooks inside the energy storage box 200 to achieve preliminary positioning, and the remaining mounting holes 2013 are used for screw fixing. Each battery pack needs to be supported by one support on the left and one on the right. The horizontal support parts 2012 of the left and right supports extend in opposite directions. To facilitate differentiation and efficient production, a first material distribution conveying unit 5a and a second material distribution conveying unit 5b are provided, stacked vertically and with the same conveying direction. These units respectively support a first type of support 201a installed on the right side inside the energy storage box 200 and a second type of support 201b installed on the left side inside the energy storage box 200. One first type of support 201a and one second type of support 201b form a group, jointly supporting the bottom sides of the same battery pack. On the material distribution conveying unit, the horizontal support portions 2012 of the first type of support 201a and the second type of support 201b extend upwards for clamping by the handling and installation device 4, while the vertical installation portions 2011 extend to the right or left respectively. One end of the first material conveying unit 5a and the second material conveying unit 5b is a material feeding area 51 and the other end is a material picking area 52. The ends of the first material conveying unit 5a and the second material conveying unit 5b are aligned at the material feeding area 51. The length of the first material conveying unit 5a is less than that of the second material conveying unit 5b, so that the right end of the second material conveying unit 5b protrudes from the first material conveying unit 5a, thereby forming an unobstructed material picking clearance area 53 above the right end of the second material conveying unit 5b. The formed material picking clearance area 53 enables the handling and installation device 4 to remove the second type of bracket 201b from the material picking area 52 of the second material conveying unit 5b without obstruction. The first material conveying unit 5a and the second material conveying unit 5b have similar structures and both include a conveying frame 57, a conveying drive motor 54 mounted on the conveying frame 57, a first drive shaft 55 driven by the conveying drive motor 54, and a first drive belt 56 wound around the first drive shaft 55. Several limiting blocks 561 are arranged along the conveying direction on the conveying surface of the first drive belt 56, and each bracket 201 is restricted between two adjacent limiting blocks 561.The conveyor frame 57 is equipped with a blocking member 571 in the material picking area 52 to block the foremost support 201, and a sensor 572 that cooperates with the blocking member 571. The conveyor frame 57 is equipped with a pair of straightening plates 573 at both ends of the material picking area 52. Each straightening plate 573 is driven by a straightening cylinder 574 to move closer to or away from the two ends of the support. After the blocking member 571 blocks the support, the sensor 572 can sense the support and give a signal. The straightening cylinders 574 at both ends drive their respective straightening plates 573 to move closer to the two ends of the support to straighten the ends of the support, so as to ensure the positional consistency of the support in the length direction and ensure the installation accuracy of the support on the energy storage box 200. The first handling mechanism 58 includes a second robotic arm 581 and a third support frame 582 located at the movable end of the second robotic arm 581. The bottom of the third support frame 582 is provided with several suction components 583 for the suction brackets 201. To prevent scratches on the surface of the brackets 201 during stacking, pads are provided between adjacent layers of brackets 201. Therefore, several clamping assemblies 584 for clamping the pads are also provided at both ends of the third support frame 582. Each clamping assembly 584 includes a clamping claw 5841 and a clamping cylinder 5842 for driving the clamping claws 5841 to open or close. A waste collection box is located below the second robotic arm 581, and the clamped pads are placed into the waste collection box. A stacking area for placing the brackets 201 is also provided on the side of the second robotic arm 581.

[0023] The handling and installation device 4 includes a first robotic arm 4b and a gripping mechanism 4a disposed at the movable end of the first robotic arm 4b. The gripping mechanism 4a includes a first support plate 41 disposed at the movable end of the first robotic arm 4b, a lifting support plate 42 elastically floating vertically at the bottom of the first support plate 41 via a first elastic unit 43, and a moving plate 44 elastically floating horizontally on one side of the lifting support plate 42 via a second elastic unit 45. The moving plate 44 is provided with a lower gripper 46, an upper gripper 47, and a first clamping drive unit 48 and / or a second clamping drive unit. The lower gripper 46 and the upper gripper 47 are vertically opposite each other and disposed on the side away from the first support plate 41. The first support plate 41 is vertically disposed, the lifting support plate 42 is horizontally disposed at the bottom of the first support plate 41, and the moving plate 44 is vertically disposed on the other side of the first support plate 41 and parallel to the first support plate 41. The first elastic unit 43 includes a first connecting seat 431 disposed on the first support plate 41, a second connecting seat 434 disposed on the lifting support plate 42, a hanging rod 432 movably disposed on the first connecting seat 431 and extending vertically, an elastic element 433 sleeved on the outer periphery of the hanging rod 432, and a movable seat 435 connected to the lower end of the hanging rod 432. The lower end of the movable seat 435 is connected to the second connecting seat 434. The upper end of the elastic element 433 abuts against the first connecting seat 431, and the lower end abuts against the movable seat 435. A first slider is disposed on the first support plate 41, and a first slide rail 4351 cooperating with the first slider is disposed on the back of the movable seat 435. The movable seat 435 can move up and down along the hanging rod 432. The lower end of the movable seat 435 is connected to the second connecting seat 434 through a sixth support shaft 436. The elastic force of the elastic element 433 enables the movable seat 435 and the lifting support plate 42 to move up and down simultaneously. The structure of the second elastic unit 45 is similar to that of the first elastic unit 43, except that the installation direction and position are different. The first elastic unit 43 is installed vertically on the first support plate 41, while the second elastic unit 45 is installed horizontally on the lifting support plate 42. To ensure the stability of the left and right movement of the moving plate 44, two of each type of elastic unit are provided: two first elastic units 43 on the inner side and two second elastic units 45 on the outer side. The first elastic unit 43 enables passive elastic floating of the lower gripper 46 and the upper gripper 47 in the vertical direction, which can compensate for the height deviation between the bracket and the installation position, ensuring the stability and centering accuracy of the up and down floating process. The second elastic unit 45 enables passive elastic floating of the lower gripper 46 and the upper gripper 47 in the horizontal direction, which can compensate for the horizontal installation deviation of the bracket and absorb lateral impacts, avoiding damage to the bracket from hard collisions. In this embodiment, the lower gripper 46 is fixedly disposed on one side of the movable plate 44, and the upper gripper 47 is movably disposed up and down. The first clamping drive unit 48 drives the upper gripper 47 to move up and down, so that the upper gripper 47 moves closer to or away from the lower gripper 46.Specifically, the first clamping drive unit 48 includes a clamping drive member 481 with its end hinged to a movable plate 44, a push rod 482 connected to the output end of the clamping drive member 481, a seventh support shaft 483 disposed at the end of the push rod 482, a swing member 484 with one end connected to the seventh support shaft 483, an eighth support shaft 485 movably disposed at the other end of the swing member 484, and a movable frame 486 connected to the eighth support shaft 485. An upper gripper 47 is connected to the movable frame 486. A swing shaft 487 is disposed in the middle of the swing member 484. The swing shaft 487 extends horizontally and its other end is disposed on the movable plate 44. The swing member 484 can rotate around the swing shaft 487, and when the swing member 484 rotates around the swing shaft 487, it can drive the movable frame 486 to move up and down. Both the seventh support shaft 483 and the eighth support shaft 485 extend horizontally, and one end of the swing member 484 is provided with a waist-shaped hole for the eighth support shaft 485 to move. The movable plate 44 has a side limiting block 49 positioned on the side of the bracket near the lower gripper 46. When the upper gripper 47 and the lower gripper 46 cooperate to clamp the upper and lower surfaces of the bracket, the side limiting block 49 restricts the bracket to the outer side, thus achieving vertical and horizontal limiting of the bracket. In other embodiments, the upper gripper 47 is located on one side of the movable plate 44, and the lower gripper 46 is movable vertically. The second clamping drive unit drives the lower gripper 46 to move vertically, causing the lower gripper 46 to move closer to or away from the upper gripper 47. Alternatively, both the upper gripper 47 and the lower gripper 46 are movable vertically, i.e., the first clamping drive unit 48 drives the upper gripper 47 to move vertically, and the second clamping drive unit drives the lower gripper 46 to move vertically. The first clamping drive unit 48 is a cylinder, an electric cylinder, or a motor, and the second clamping drive unit is a cylinder, an electric cylinder, or a motor. Furthermore, the number of the upper jaw 47, the lower jaw 46, the side limiting block 49, the first clamping drive unit 48, and the second clamping drive unit can be adjusted according to the actual situation, and no restrictions are imposed here.

[0024] The locking device 3 includes a drive unit 31, a mounting arm 32 connected to the movable end of the drive unit 31, and a locking unit 33 and a straightening unit 34 disposed on the mounting arm 32. The mounting arm 32 extends along a first direction, namely the Y direction (front-back direction). The locking unit 33 is movably disposed on the mounting arm 32 along the first direction. The locking unit 33 includes a base plate 331, a first drive module 332 disposed on the base plate 331, a first support frame 333 driven by the first drive module 332 to perform lifting and lowering actions, and a first locking gun 334 and a second locking gun 335 disposed on the first support frame 333 and capable of moving along a second direction. The first locking gun 334 and the second locking gun 335 both extend in the second direction (X direction) and face opposite directions. The correction unit 34 is mounted on the mounting cantilever 32. The correction unit 34 includes a second drive module 341, a second support frame 342 driven by the second drive module 341 to move along a second direction (X direction), a correction drive module 343 mounted on the second support frame 342, and a first correction component 344 and a second correction component 345 connected to both ends of the correction drive module 343. The second direction is consistent with the conveying direction of the conveyor line 6, and the first direction is perpendicular to the conveying direction of the conveyor line 6. The mounting cantilever 32 extends into the energy storage box 200 along the Y direction to the screw position. The first locking gun 334 approaches the left support along the X direction and locks the screw, and then the second locking gun 335 approaches the right support along the opposite X direction and locks the screw. The base plate 331 is driven by the first driving component 336 to move along the first direction (Y direction). The first driving component 336 is a servo motor or a linear drive module, which can drive the first locking gun 334 or the second locking gun 335 to move along the Y direction. On the one hand, it is to fine-tune the Y-direction position to compensate for the deviation after the first positioning of the mounting cantilever 32, so that the locking gun is accurately aligned with the screw hole positions of different Y coordinates on the bracket. On the other hand, in the step-by-step operation from left to right, after the first locking gun 334 completes the left side locking, the base plate 331 is driven again to make the second locking gun 335 accurately aligned with the Y-direction hole position of the right side bracket, thus completing the right side locking. The first locking gun 334 is driven by the second driving member 337 to move along the second direction, and the second locking gun 335 is driven by the third driving member 338 to move along the second direction, so as to approach the left and right supports respectively to perform locking actions. This can meet the step-by-step process of left first and then right, or it can be driven synchronously to achieve simultaneous locking. The second driving member 337 and the third driving member 338 are both mounted on the first support frame 333. The second driving member 337 and the third driving member 338 are servo motors, cylinders or electric cylinders. The output ends of the second driving member 337 and the third driving member 338 are connected to a second support plate 339. The first locking gun 334 is connected to one of the second support plates 339, and the second locking gun 335 is connected to the other second support plate 339.In this embodiment, the first drive module 332 is a motor-driven lead screw drive that drives the first support frame 333 to perform lifting and lowering actions. Alternatively, the first drive module 332 can be a motor-driven transmission belt drive or a linear lifting module, which can be set according to the actual situation and is not limited here. The first locking gun 334 and the second locking gun 335 have the same or similar structures and are both existing technologies, so they will not be described in detail here. The first support frame 333 is equipped with a first camera 3310 facing the same direction as the first locking gun 334 and a second camera 3311 facing the same direction as the second locking gun 335. These cameras take pictures of the left and right sides of the support to confirm the screw position. The setting of this camera can improve positioning accuracy, compensate for workpiece deviation, enhance adaptability, realize automated locking, reduce scrap rate and collision risk, support complex working conditions, and provide feedback verification for the correction effect of the correction unit 34. The alignment unit 34 and locking unit 33 are located at the cantilever end of the mounting cantilever 32, and the other end is provided with a feeding box 35. The feeding box 35 is connected to the first locking gun 334 and the second locking gun 335 through a conveying pipe 36 to realize automatic feeding. The feeding box 35 is located at the non-cantilever end (close to the drive unit 31) to reduce the load on the cantilever, reduce the risk of deformation, and improve stability. In this embodiment, the drive unit 31 is a YZ axis drive module. In other embodiments, the drive unit 31 can be an XZ axis drive module or an XYZ drive module. The setting can be adjusted according to the actual situation and is not limited here. In this embodiment, the second drive module 341 is a stepper motor or a drive module of other structures, as long as it can drive the second support frame 342 to move back and forth in the second direction. The first alignment component 344 and the second alignment component 345 have the same or similar structures. The first alignment component 344 includes a first upper alignment component 3441 clamped on the upper surface of the bracket and a first lower alignment component 3442 clamped on the lower surface of the bracket. The second alignment component 345 includes a second upper alignment component 3451 clamped on the upper surface of the bracket and a second lower alignment component 3452 clamped on the lower surface of the bracket. The correction drive module 343 includes a third drive motor 3431 mounted on a second support frame 342, a first rotating shaft 3432 connected to one end of the third drive motor 3431 and extending horizontally, a second rotating shaft 3433 parallel to the first rotating shaft 3432, and a third rotating shaft 3434 parallel to the second rotating shaft 3433 and located at the other end of the third drive motor 3431. The first rotating shaft 3432 and the second rotating shaft 3433 achieve rotational transmission through meshing with a first gear 3435, and the second rotating shaft 3433 and the third rotating shaft 3434 achieve rotational transmission through meshing with a second gear 3436. The first rotating shaft 3432, the second rotating shaft 3433, and the third rotating shaft 3434 are all rotatably mounted on the second support frame 342 via bearings.The first rotating shaft 3432 and the third rotating shaft 3434 are opposite each other and both are located below the second rotating shaft 3433. The first upper alignment component 3441 and the second upper alignment component 3451 are respectively connected to the two ends of the second rotating shaft 3433. The first lower alignment component 3442 is connected to the first rotating shaft 3432, and the second lower alignment component 3452 is connected to the third rotating shaft 3434. When the third drive motor 3431 drives the first rotating shaft 3432 to rotate the second rotating shaft 3433 and the third rotating shaft 3434 horizontally, it can cause the first upper alignment member 3441 and the first lower alignment member 3442 to open or clamp, and at the same time, it can also cause the second upper alignment member 3451 and the second lower alignment member 3452 to open or clamp. When the first upper alignment member 3441 and the first lower alignment member 3442 clamp the bracket, or when the second upper alignment member 3451 and the second lower alignment member 3452 clamp the bracket, it can perform a alignment action on the bracket, and can perform vertical alignment on the bracket to ensure the consistency of the bracket in the vertical direction and improve the accuracy of the locking gun aligning with the screw holes. Before installing the battery pack in the energy storage box 200, multiple brackets 201 are first positioned on the left and right sides inside the energy storage box 200, and then aligned by the alignment unit 34 and locked by the locking unit 33. In this embodiment, the bracket is relatively long and includes two locking units 33 and two straightening units 34, arranged alternately along the first direction. These units straighten the bracket at different positions and simultaneously lock the screws at two different positions, thereby improving efficiency, preventing deflection, and reducing cantilever deformation. In other embodiments, the number and layout of the straightening units 34 and locking units 33 can be adjusted according to the bracket length and the number of screws, and are not limited thereto.

[0025] Since the energy storage box 200 needs to install multi-layer and multi-row battery packs, it also needs to install multi-layer and multi-row brackets 201. In addition to being able to move along the first direction (Y direction), the transport and installation device 4 and the locking device 3 also need to be able to move along the second direction (X direction). Therefore, the transport and installation device 4 and the locking device 3 are each driven by a position drive module 410 to move along the second direction (X direction). The position drive module 410 includes a position drive motor 4101 located at the bottom of the transport and installation device 4 or the bottom of the locking device 3, and a second ground rail 4102 matched with the output end of the position drive motor 4101. The second ground rail 4102 extends along the second direction (X direction).

[0026] The loading device 1 includes a support frame 11 for carrying battery packs 300, a first conveying mechanism 12 disposed on one side of the support frame 11, and a second transporting mechanism 13 disposed above the first conveying mechanism 12 and transporting the battery packs 300 on the support frame 11 to the first conveying mechanism 12. Specifically, one or more support frames 11 are provided and stacked vertically. Positioning blocks 113 are provided on the edge of the upper surface of the support frame 11, and clearance notches 114 are provided on both sides of the support frame 11. The second transporting mechanism 13 includes a gantry frame 135 disposed above the support frame 11, a loading drive module 131 disposed on the gantry frame 135, and a first mounting frame 132 connected to the movable end of the loading drive module 131. A first transporting unit 133 and a second transporting unit 134 are disposed on the first mounting frame 132. Multiple carrier frames 11 are stacked vertically, with each carrier frame 11 holding a battery pack. The stacked carrier frames 11 hold a total of multiple battery packs. An AGV (Automated Guided Vehicle) trolley carries the bottom of the carrier frames 11 to transport the battery packs. This allows the AGV trolley to transport multiple battery packs 300 at a time, improving transport efficiency. Because the carrier frames 11 are stacked, when loading battery packs 300, after the battery packs 300 on the upper layer of carrier frames 11 are removed by the first transport unit 133, that layer of carrier frame 11 needs to be removed and placed aside before the next layer of carrier frames 11 can be transported. Therefore, a first transport unit 133 for transporting battery packs and a second transport unit 134 for transporting carrier frames 11 are provided. The first transport unit 133 includes a first clamping hook 1331 and a second clamping hook 1332 arranged opposite each other. Both the first clamping hook 1331 and the second clamping hook 1332 extend vertically. The first clamping hook 1331 and the second clamping hook 1332 are driven by a first driving component 1333 to move closer or further apart. When clamping, the first clamping hook 1331 and the second clamping hook 1332 extend into the clearance notch 114 and respectively cooperate with the left and right edges of the battery pack, so as to hook and clamp the bottom edges of the left and right sides of the battery pack under the drive of the first driving component 1333. A proximity switch 136 is provided at the bottom of the first mounting bracket 132. When the proximity switch 136 descends and senses the battery pack 300, the first transport unit 133 begins to transport the battery pack 300. The first transport unit 133 is equipped with a detection fiber optic cable 137, which can detect whether the first clamping hook 1331 and the second clamping hook 1332 accurately clamp the bottom sides of the battery pack 300. The second transport unit 134 includes a first clamping arm 1341 and a second clamping arm 1342 arranged opposite to each other. Both the first clamping arm 1341 and the second clamping arm 1342 extend vertically. The first clamping arm 1341 and the second clamping arm 1342 are each driven by a second drive component 1343 to move closer or further apart.The first clamping arm 1341 and the second clamping arm 1342 respectively cooperate with the front and rear edges of the support frame 11 to clamp the front and rear sides of the support frame 11 under the drive of the second drive assembly 1343. The second drive assembly 1343 can drive the first clamping arm 1341 and the second clamping arm 1342 to move closer to each other, and can also drive the first clamping arm 1341 and the second clamping arm 1342 to perform lifting and lowering movements. In this embodiment, the loading drive module 131 is an XZ axis drive module. In other embodiments, the loading drive module 131 is a YZ axis drive module or an XYZ axis drive module. The XZ axis drive module, YZ axis drive module, and XYZ axis drive module are existing technologies and can be set according to actual conditions, and are not limited here. The first conveying mechanism 12 includes a roller conveyor line 121 and a straightening module 122 arranged on the roller conveyor line 121. The roller conveyor line 121 and the straightening module 122 are existing technologies and will not be described in detail here.

[0027] The loading device 2 is used to receive the battery pack 300 from the loading device 1 and push the received battery pack 300 into the energy storage box 200. The loading device 2 includes a conveying and pushing unit 2b that is connected to the first conveying mechanism 12 and a lifting unit 2a that drives the conveying and pushing unit 2b to perform lifting and lowering actions. The lifting unit 2a includes a frame 21, a third drive module 22 and a fourth drive module 23 that are disposed opposite to each other on the inner side of the frame 21, a first lifting plate 24 connected to the movable end of the third drive module 22, and a second lifting plate 25 connected to the movable end of the fourth drive module 23. The conveying and pushing unit 2b includes a first base 26 that is hinged to the first lifting plate 24 and the second lifting plate 25 on the left and right sides respectively, a second mounting frame 27 that is movably disposed on the first base 26, a second conveying mechanism 28 disposed on the second mounting frame 27, a pushing mechanism 29 disposed on the side of the second conveying mechanism 28, and a pushing drive assembly 210 that drives the pushing mechanism 29 to reciprocate along a first direction. One side of the first base 26 is hinged to the first lifting plate 24 via a first hinge module 261, and the other side of the first base 26 is hinged to the second lifting plate 25 via a second hinge module 262. The first hinge module 261 includes a first hinge seat 2611 with one end connected to the first lifting plate 24, a second hinge seat 2612 with one end connected to one side of the first base 26, and a first support shaft 2613 connecting the first hinge seat 2611 and the second hinge seat 2612 together. The first support shaft 2613 extends horizontally, and both the first hinge seat 2611 and the second hinge seat 2612 are rotatably connected to the first support shaft 2613. The second hinge module 262 includes a third hinge seat 2621 with one end connected to the second lifting plate 25, a fourth hinge seat 2622 with one end connected to one side of the first base 26, a connecting rod 2623, a second support shaft 2624 connecting one end of the connecting rod 2623 to the third hinge seat 2621, and a third support shaft 2625 connecting the other end of the connecting rod 2623 to the fourth hinge seat 2622. Both the second support shaft 2624 and the third support shaft 2625 extend horizontally. The second support shaft 2624 is located above the third support shaft 2625. One end of the connecting rod 2623 and the third hinge seat 2621 are rotatably connected to the second support shaft 2624, and the other end of the connecting rod 2623 and the fourth hinge seat 2622 are rotatably connected to the third support shaft 2625. The first hinge module 261 and the second hinge module 262 can adjust the angles of the left and right sides of the battery pack so that the tilt angle of the battery pack is consistent with the tilt angle of the bracket, ensuring the installation accuracy of the battery pack. In this embodiment, since the tilt angle of the left and right brackets is small, the height difference between the left and right brackets may only be a few millimeters. That is, the tilt angle of the left and right sides of the second conveying mechanism 28 is very small, for example, less than 2°. Therefore, the position of the battery pack 300 on the second conveying mechanism 28 will not be shifted, so it will not affect the position accuracy of the battery pack 300 entering the box.If the tilt angle is large, limiting members can be set on the second conveying mechanism 28 to limit the sides of the battery pack. A vision camera 271 is set at the front end of the second mounting bracket 27, which can take pictures to detect the height of the two side supports inside the energy storage box 200. The third drive module 22 and the fourth drive module 23 have the same or similar structure. In this embodiment, the third drive module 22 and the fourth drive module 23 are driven by a motor-driven screw drive. In other embodiments, the third drive module 22 and the fourth drive module 23 are driven by a motor-driven belt drive, which is prior art and will not be described in detail here. The second conveying mechanism 28 has a conveying surface along the first direction, and a conveying area is formed above the conveying surface; the pushing mechanism 29 includes a pushing member 291 disposed on the side of the second conveying mechanism 28 and a sixth drive module 292 that drives the pushing member 291 to reciprocate between the initial position and the pushing position. When the pushing member 291 is in the initial position, it is located outside the conveying area. In this embodiment, two pushers 291 and two sixth drive modules 292 are provided. When the two pushers 291 are in the push position, they act simultaneously on the left and right rear sides of the battery pack. Then, the pushers 291 move along the first direction to push the battery pack into place. Correspondingly, two push-in drive components 210 are also provided, located on the left and right sides of the second conveying mechanism 28, respectively. The push-in drive component 210 includes a first drive motor 2101 and a transmission screw 2102 connected to the output end of the first drive motor 2101. The transmission screw 2102 extends along the first direction. In this embodiment, two sixth drive modules 292 are symmetrically arranged on the outer side of the second conveying mechanism 28. The sixth drive module 292 includes a second mounting base 2921 arranged on the transmission screw 2102, a fourth support shaft 2922 arranged horizontally on the second mounting base 2921, a swing seat 2923 rotatably arranged on the fourth support shaft 2922 at one end, a fifth support shaft 2924 arranged horizontally in the middle of the swing seat 2923, a moving rod 2925 rotatably arranged on the fifth support shaft 2924 at one end, and a push drive member 2926 connected to the other end of the moving rod 2925 and driving the moving rod 2925 to move in the second direction. The other end of the push drive member 2926 is hinged to the second mounting base 2921. The push member 291 is connected to one side of the end of the swing seat 2923 and extends in the first direction. The push drive member 2926 and the push member 291 are located on both sides of the swing seat 2923, respectively. When the pusher 291 is in its initial position, it is located outside the conveying area and at a high position. When the pusher drive 2926 drives the moving rod 2925 to move in the second direction, the swing seat 2923 rotates around the fourth support shaft 2922 by a set angle. When the pusher 291 is in the push position, it is located within the conveying area and at a low position. This solution, by setting the pusher 291 at a high position outside the conveying area and rotating it down to a low position when needed, achieves complete avoidance of the battery pack conveying path and ensures smooth feeding.Both the second conveying mechanism 28 and the push-in drive assembly 210 are mounted on the second mounting bracket 27. A second drive motor 263 is mounted on the first base 26 to drive the second mounting bracket 27 to move along a first direction. This means the second conveying mechanism 28 can move back and forth to dock with the energy storage box 200 and the first conveying mechanism 12, respectively, facilitating the smooth entry of the battery pack into the energy storage box 200. The second conveying mechanism 28 includes a first conveying module 281 and a second conveying module 282, which are positioned opposite each other. The first conveying module 281 and the second conveying module 282 are respectively supported on the bottom sides of the battery pack and convey the battery pack 300. To improve the versatility of the second conveying mechanism 28 and adapt to battery packs of different sizes, the first conveying module 281 and / or the second conveying module 282 are driven by the fifth drive module 283 to move along a second direction, thus adapting to battery packs of different sizes. A blocking component 284 is provided at the input and output ends of the second conveying mechanism 28, and a through-beam optical fiber 285 is provided at both the input and output ends of the second conveying mechanism 28. The through-beam optical fiber 285 is used to realize high-precision non-contact detection of the battery pack in place. Since the energy storage box 200 needs to install multiple layers and multiple rows of battery packs, in addition to the second conveying mechanism 28 being able to move along the X direction, the box loading device 2 also needs to be able to drive the battery pack to move along the Y direction. Therefore, the box loading device 2 also includes a box loading drive module 211. The box loading drive module 211 includes an X-axis drive motor 2111 located at the bottom of the frame 21 and a first ground rail 2112 matched with the output end of the X-axis drive motor 2111. The first ground rail 2112 extends along the second direction (X direction).

[0028] A wiring station 98 is provided between the battery pack receiving device 40 and the testing device 9. Wiring is performed at the wiring station 98 for the battery pack and other components, such as the high-voltage box. Alternatively, transistors and other conduits can be installed at the wiring station. Wiring can be done manually or automatically using a robotic arm, depending on the specific circumstances. When using an automatic robotic arm, the structure can refer to the structure described in Chinese Patent Publication No. CN120049258A, which discloses a batch automated wire harness splicing device and its control method; details will not be elaborated here. Alternatively, the wiring station 98 can be directly set at the input end of the testing device 9, and relevant tests can be performed immediately after wiring is completed.

[0029] The testing device 9 is located at the output end of the conveyor line 6. The testing device 9 includes a feeding conveyor line 91 that conveys along a second direction, a first positioning conveyor line 92 and a second positioning conveyor line 93 that are parallel to the feeding conveyor line 91 and located on either side of it, a transfer conveyor line 94 that conveys along the second direction, and a transfer drive module 95 that drives the transfer conveyor line 94 to move along a first direction to dock with the first positioning conveyor line 92, the feeding conveyor line 91, or the second positioning conveyor line 93. Several types of testing units 96 are arranged on the sides of both the first positioning conveyor line 92 and the second positioning conveyor line 93. The specific structures of the feeding conveyor line 91, the first positioning conveyor line 92, the second positioning conveyor line 93, and the transfer conveyor line 94 are similar to those of the conveyor line 6, all including rollers 61 and bearing plates 62, only differing in length, which will not be described in detail here. Both the first positioning conveyor line 92 and the second positioning conveyor line 93 have multiple positioning areas along the second direction. These multiple positioning areas can simultaneously position multiple energy storage boxes. After the energy storage box in one positioning area has been tested, both the first positioning conveyor line 92 and the second positioning conveyor line 93 can transport the energy storage box to the next positioning area for further testing. Each positioning area has a positioning module for positioning the energy storage box on its outer periphery. The number of positioning modules corresponds one-to-one with the number of positioning areas. Each positioning module includes a positioning structure and a positioning drive component for resetting the positioning structure. In this embodiment, the assembled energy storage box 200 needs to undergo airtightness testing, liquid injection testing, safety testing, power-on testing, and capacity testing. Therefore, the various testing units 96 include an airtightness testing unit 961, a liquid injection testing unit 962, a safety testing unit 963, a power-on testing unit 964, and a capacity testing unit 965. In other embodiments, if additional test items are required, corresponding test units can be added or reduced, depending on the actual situation. Each type of test unit can be provided with one or more units, and multiple test units of each type can be arranged together or separately in different positions. Therefore, the specific types of test units, the quantity of each type, and the order of arrangement are not limited here. Among them, the airtightness test unit 961, liquid injection test unit 962, safety test unit 963, power-on test unit 964, and capacity test unit 965 are all prior art and will not be described in detail here.In this embodiment, in order to improve the efficiency of testing, the sides of the first positioning conveyor line 92 and the second positioning conveyor line 93 are equipped with an airtightness test unit 961, a liquid injection test unit 962, a safety test unit 963, a power-on test unit 964, and a capacity test unit 965. Since the first positioning conveyor line 92 and the second positioning conveyor line 93 are equipped with complete and multi-station test units from airtightness test to capacity test on both sides, a long-process and highly parallel test layout is formed. If only a single transfer conveyor line 94 is set up, the following problems will be faced: it cannot support true parallel transfer on both sides, it is necessary to move a long distance along the second direction to different stations, resulting in a long single transfer stroke and slow cycle time, it is easy to cause path interference and scheduling conflicts with the continuous material flow on the unloading conveyor line 91, it is impossible to respond to transfer requests issued by multiple stations at the same time, and it is impossible to achieve flexible cross-schedule and load balancing across sides. Therefore, multiple transfer conveyor lines 94 are provided. One of the transfer conveyor lines 94 is located at the common input end of the unloading conveyor line 91, the first positioning conveyor line 92, and the second positioning conveyor line 93. The unloading conveyor line 91, the first positioning conveyor line 92, and the second positioning conveyor line 93 are disconnected at their respective locations where the transfer conveyor line 94 needs to be installed to form multiple avoidance channels 97. One transfer conveyor line 94 is set at each avoidance channel 97. Through the design of dedicated feeding at the input end transfer conveyor line 94 and multi-point parallel transfer at the other segmented conveyor lines, the separation of feeding and circulation is realized, the single movement distance is shortened, and requests can be processed in parallel, effectively avoiding path congestion and resource competition. At the same time, it supports cross-side fault scheduling and degraded operation, improves system redundancy and reliability, and the layout and end space and disconnection structure are precisely matched, thereby maximizing the utilization efficiency of the dual-side test units and meeting the requirements of high throughput and low latency automated testing. Energy storage boxes 200 that have passed all tests on the first positioning conveyor line 92 or the second positioning conveyor line 93 are received laterally via the transfer conveyor line 94 and then conveyed along the second direction to the unloading end for centralized discharge. At the same time, defective products found during the testing process are transferred to the abnormal discharge position for diversion and removal. Each transfer conveyor line 94 is equipped with a transfer drive module 95 at its bottom, which drives the transfer conveyor line 94 to move along the first direction. The transfer drive module 95 includes a second base 951 extending along a first direction, a fifth drive motor 952 mounted on the second base 951, and a second transmission belt 953 driven by the fifth drive motor 952. The bottom of the transfer conveyor line 94 is connected to the second transmission belt 953. Tracks 955 extending along the first direction are provided on both sides of the second base 951. Rollers 954 cooperating with the tracks 955 are provided at the bottom of the transfer conveyor line 94. When the fifth drive motor 952 drives the second transmission belt 953, the second transmission belt 953 can drive the transfer conveyor line 94 to move along the first direction, while the rollers 954 can roll on the tracks 955.

[0030] In practical applications of the energy storage box 200, since its working environment often involves underground or outdoor wiring, the external cable access port of the energy storage box 200 is usually located at its bottom for easy cable burial and protection. During testing, the high current or signal connector from the test unit needs to be reliably connected to the cable access port at the bottom of the energy storage box 200, and then connected to the internal wiring of the energy storage box. However, since the cable access port is located at the bottom of the energy storage box, and the energy storage box is laid flat on the first positioning conveyor line 92 or the second positioning conveyor line 93, the connector on the test unit cannot be directly and smoothly extended into the cable access port at the bottom of the energy storage box. If manual bending over and reaching into the bottom to thread or connect wires is used, it is not only difficult to operate, obstructs vision, and is inefficient, but also poses safety hazards and risks of poor contact in large-scale assembly line operations. Therefore, a wire feeding mechanism 8 is provided at the bottom of both the first positioning conveyor line 92 and the second positioning conveyor line 93. The wire feeding mechanism 8 includes a third mounting frame 81, a lifting drive component 82 mounted on the third mounting frame 81, a first mounting base 83 driven by the lifting drive component 82 to move up and down, and at least one plug wire 84 mounted on the first mounting base 83. The upper end of the first mounting base 83 is provided with... At least one positioning hole 831 is provided, and a receiving opening 832 is provided on the side of the first mounting base 83. At least one plug-in wire 84 is positioned on the first mounting base 83. The plug-in wire 84 includes a wire 841 and a conductive terminal 842 connected to the upper end of the wire 841. The upper end of the plug-in wire 84 passes through the positioning hole 831, and the conductive terminal 842 is located above the first mounting base 83. The wire 841 of the plug-in wire 84 is received inside the first mounting base 83 and leads out from the receiving opening 832 to connect with the test unit. The upper end of the conductive terminal 842 extends into the wire passage of the energy storage box 200 and connects with the wires inside the energy storage box. Correspondingly, the first positioning conveyor line 92 and the second positioning conveyor line 93 are provided with a clearance notch at the position of the wire feeding mechanism 8, or the first positioning conveyor line 92 and the second positioning conveyor line 93 are disconnected from the support plate 62 at this position or no support plate 62 is provided to avoid the clearance notch of the wire feeding mechanism 8, so that the conductive terminal 842 of the wire feeding mechanism 8 can move up and down. The upper end of the plug wire 84 extends through the positioning hole 831 and the conductive terminal 842 is located above the first mounting base 83. When the lifting drive 82 drives the first mounting base 83 to move upward into place, the conductive terminal 842 of the plug wire 84 can extend into the interior of the energy storage box from the wire passage at the bottom of the energy storage box. Thus, without the need to flip the energy storage box from the outside or manually probe inside, the electrical connection between the wire and the conductive terminal 842 can be completed directly inside the energy storage box. This ensures the convenience and reliability of the wiring operation, avoids the problems of obstructed vision and limited operating space caused by the wire passage being located at the bottom, and reduces the risk of exposed wire harness and interference, significantly improving testing efficiency and safety.The diameter of the positioning hole 831 is larger than the diameter of the plug wire 84. A limiting seat 85 is provided on the outer periphery of the upper end of the plug wire 84. The limiting seat 85 is limited to the upper surface of the first mounting base 83. One end of the limiting seat 85 is provided with a through hole and is sleeved on the outer periphery of the plug wire 84. The other end is locked by fasteners (bolts, screws, pins, etc.). This not only reliably positions the plug wire 84 on the upper surface of the first mounting base 83, preventing it from sliding off due to gravity or vibration during lifting, but also allows for flexible adjustment of the extension length of the plug wire 84 by loosening the fasteners to adapt to the depth of the wire passage or the alignment height requirements of the conductive terminal 842 of different energy storage boxes. The first mounting base 83 has a hollow cavity 833 inside to form a routing channel for the wire 841. The hollow cavity 833 is interconnected with the positioning hole 831 and the receiving port 832. The hollow cavity 833 can provide sufficient routing channel and storage space for the wire 841 inside, so that after the wire 841 of the plug-in cable 84 is led out from the conductive terminal 842, it is finally led out from the receiving port 832 on the side and connected to the test unit. In order to ensure the stability of the lifting and lowering of the first mounting base 83, a second slider 812 is provided on one side of the third mounting bracket 81, and a second slide rail 834 extending vertically and cooperating with the second slider 812 is provided on the first mounting base 83. The cooperation between the second slide rail 834 and the second slider 812 ensures the stability of the lifting and lowering of the first mounting base 83. The third mounting bracket 81 is located at the active end of the horizontal moving module. The third mounting bracket 81 moves horizontally under the drive of the horizontal drive module. For example, the horizontal drive module can be an X-axis drive module or a Y-axis drive module, which drives the third mounting bracket 81 to move along the X or Y direction. Alternatively, the horizontal drive module can be an XY-axis drive module, which drives the third mounting bracket 81 to move along the X or Y direction. X-axis drive modules, Y-axis drive modules, and XY-axis drive modules are all existing technologies, and designs using existing technologies are sufficient; they will not be elaborated upon here. A vision camera is installed on the first mounting base 83. The vision camera can move up and down or horizontally with the first mounting base 83, capturing real-time images of the position of the wire passage at the bottom of the energy storage box before wire delivery. This ensures high-precision alignment between the conductive terminal 842 and the wire passage of the energy storage box, avoiding docking failures caused by positioning errors of the energy storage box on the conveyor line or product dimensional tolerances. After the energy storage box is positioned on the first positioning conveyor line 92 or the second positioning conveyor line 93, the wire feeding mechanism 8 is located below the first positioning conveyor line 92 and the second positioning conveyor line 93. If the first positioning conveyor line 92 and the second positioning conveyor line 93 are flush with the ground, the wire feeding mechanism 8 can be buried below the ground.

[0031] Since the energy storage box 200 needs to be transported on the conveyor line 6 for a long time, in order to avoid scratching the surface of the energy storage box 200, a positioning bracket is set at the bottom of each energy storage box 200. After the energy storage box is assembled and tested, the positioning bracket needs to be returned. Therefore, a return conveyor line for transporting the positioning bracket is connected to one side of the end of the unloading conveyor line 91. The other end of the return conveyor line is connected to the conveyor line 6. At the input end of the conveyor line 6, the empty energy storage box 200 is hoisted onto the positioning bracket. The conveyor line 6 together transports the positioning bracket and the energy storage box 200 backward. The other side of the end of the unloading conveyor line 91 is connected to the receiving conveyor line. The hoisting equipment places the assembled and tested energy storage box 200 onto the receiving conveyor line. The receiving conveyor line transports the finished product to the designated area for stacking.

[0032] Example 2: This example provides a manufacturing process for an energy storage box, which is based on the energy storage box production line 100 described in Example 1. The manufacturing process includes the installation of internal components, the installation of brackets, the installation of battery packs, and various tests after assembly. Specifically, it includes the following steps: Step S1: Place the empty energy storage box on the conveyor line 6, and the conveyor line 6 will transport it to the assembly station 6a. Several handling and assembly mechanisms 7 will sequentially transport and assemble components such as air conditioners, liquid chillers, and integrated cabinets into the energy storage box. In step S2, the conveyor line 6 transports the assembled energy storage box to the installation station 6b. The feeding device 5 provides the bracket. The first robot arm 4b of the handling and installation device 4 drives the clamping mechanism 4a to clamp the bracket from the feeding device 5 and transport the bracket to the predetermined installation position inside the energy storage box. The drive unit 31 of the locking device 3 drives the installation cantilever 32 to extend into the energy storage box. The alignment unit 34 aligns and calibrates the bracket that has been placed in place. The locking unit 33 locks and fixes the bracket to the inner wall of the energy storage box. Step S3: Conveyor line 6 continues to transport the energy storage box with the assembled bracket to the rear, and the handling and assembly mechanism 7 transports the high voltage box and installs it into the designated position inside the energy storage box. Step S4: Conveyor line 6 transports the energy storage box with the bracket and high voltage box installed to the box entry station 6c. The feeding device 1 transports the battery pack to the predetermined position. The conveying and pushing unit 2b receives the battery pack from the feeding device 1. The lifting unit 2a adjusts the left and right angles of the conveying and pushing unit 2b. The lifting unit 2a drives the conveying and pushing unit 2b to rise and fall into place and pushes the battery pack into the bracket that has been installed inside the energy storage box. The bracket reliably supports the battery pack. Step S5, conveyor line 6 will continue to transport the energy storage box after the battery pack has been installed. During this process, the battery pack, high voltage box and other components will be connected by wiring harnesses, and the installation of pipelines such as triodes will be completed. Step S6: The conveyor line 6 transports the energy storage box with completed wiring and pipeline installation to the test station 6d. Several types of test units 96 arranged in sequence or in parallel perform various performance tests on the energy storage box, including airtightness test, liquid injection test, safety test, power-on test and capacity test. The energy storage box that has completed all tests is output, hoisted or transported off the line and put into storage.

[0033] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. An energy storage box production line, characterized in that, It includes: The conveyor line is equipped with assembly stations, installation stations, box-loading stations, and testing stations along its conveying direction. A plurality of handling and assembly mechanisms are arranged on the side of the conveyor line and along the conveying direction of the conveyor line; The installation equipment is set at the installation station. The installation equipment includes a handling installation device and a locking device arranged along the conveying direction of the conveyor line. A feeding device is provided on one side of the handling installation device. The handling installation device includes a first manipulator and a gripping mechanism provided at the movable end of the first manipulator. The locking device includes a drive unit, an installation cantilever connected to the movable end of the drive unit, and a locking unit and a straightening unit provided on the installation cantilever. The box-in equipment is set at the box-in station. The box-in equipment includes a feeding device set on one side of the conveyor line and a box-in device set between the conveyor line and the feeding device. The box-in device includes a conveying and pushing unit and a lifting unit that drives the conveying and pushing unit to perform lifting and lowering actions. The two sides of the conveying and pushing unit are hinged to the lifting unit. The testing equipment is set up at the testing station, and the testing equipment includes several types of testing units arranged in an array.

2. The energy storage box production line as described in claim 1, characterized in that: The plurality of transport and assembly mechanisms include at least one or more of a first transport and assembly mechanism, a second transport and assembly mechanism, a third transport and assembly mechanism, and a fourth transport and assembly mechanism, wherein the fourth transport and assembly mechanism is disposed between the installation equipment and the box-in equipment, a fifth transport and assembly mechanism is disposed between the first transport and assembly mechanism and the second transport and assembly mechanism, and a sixth transport and assembly mechanism is disposed between the third transport and assembly mechanism and the fourth transport and assembly mechanism.

3. The energy storage box production line as described in claim 1, characterized in that: At least one lifting worktable is provided at the assembly station. At least one lifting worktable is provided on the conveying path of the conveyor line. The conveyor line is provided with a clearance opening for installing the lifting worktable. The lifting worktable includes a support base, a first lifting drive mechanism for driving the support base to move up and down, a second lifting drive mechanism provided on the support base, and a fence frame provided on the outer periphery of the support base and driven to move up and down by the second lifting drive mechanism. The support base has an initial height and a working height. When the support base rises to the working height, the top surface of the fence frame is higher than the upper surface of the support base to form a enclosure structure. When the support base is at the initial height, the top surface of the fence frame is not higher than the upper surface of the support base.

4. The energy storage box production line as described in claim 1, characterized in that: The feeding device includes a material distribution and conveying unit and a first conveying mechanism disposed at one end of the material distribution and conveying unit. The material distribution and conveying unit includes a first material distribution and conveying unit and a second material distribution and conveying unit stacked on top of each other and conveying in the same direction. One end of the first material distribution and conveying unit and the second material distribution and conveying unit is a material discharge area and the other end is a material pick-up area. The ends of the first material distribution and conveying unit and the second material distribution and conveying unit are aligned at the material discharge area. The length of the first material distribution and conveying unit is less than that of the second material distribution and conveying unit, so that the right end of the second material distribution and conveying unit protrudes out of the first material distribution and conveying unit, thereby forming an unobstructed material pick-up clearance area above the right end of the second material distribution and conveying unit.

5. The energy storage box production line as described in claim 1, characterized in that: The gripping mechanism includes a first support plate disposed at the movable end of the first robotic arm, a lifting support plate disposed at the bottom of the first support plate by means of a first elastic unit, and a movable plate disposed on one side of the lifting support plate by means of a second elastic unit. The movable plate is provided with a lower gripper, an upper gripper, and a first clamping drive unit and / or a second clamping drive unit. The lower gripper and the upper gripper are vertically opposite each other and disposed on the side away from the first support plate. The movable plate is provided with a side limiting block near the lower gripper.

6. The energy storage box production line as described in claim 1, characterized in that: The mounting cantilever extends along a first direction. The locking unit includes a base plate, a first drive module disposed on the base plate, a first support frame driven by the first drive module to perform lifting and lowering actions, and a first locking gun and a second locking gun disposed on the first support frame and capable of moving along a second direction. The first locking gun and the second locking gun both extend in the second direction and face opposite directions. The base plate is driven by a first drive member to move along the first direction. The alignment unit is disposed on the mounting cantilever. The alignment unit includes a second drive module, a second support frame driven by the second drive module to move along the second direction, an alignment drive module disposed on the second support frame, and a first alignment component and a second alignment component connected to both ends of the alignment drive module.

7. The energy storage box production line as described in claim 1, characterized in that: The feeding device includes a support frame, a first conveying mechanism disposed on one side of the support frame, and a second transport mechanism disposed above the first conveying mechanism. The second transport mechanism includes a gantry frame, a feeding drive module disposed on the gantry frame, and a first mounting frame connected to the movable end of the feeding drive module. The first mounting frame is provided with a first transport unit and a second transport unit.

8. The energy storage box production line as described in claim 1, characterized in that: The lifting unit includes a frame, a third drive module and a fourth drive module disposed opposite to each other on the inner side of the frame, a first lifting plate connected to the movable end of the third drive module, and a second lifting plate connected to the movable end of the fourth drive module; the conveying and pushing unit includes a first base hinged to the first lifting plate and the second lifting plate on the left and right sides respectively, a second mounting frame movably disposed on the first base, a second conveying mechanism disposed on the second mounting frame, a pushing mechanism disposed on the side of the second conveying mechanism, and a pushing drive assembly that drives the pushing mechanism to reciprocate along a first direction.

9. The energy storage box production line as described in claim 1, characterized in that: The testing equipment is located at the output end of the conveyor line. The testing equipment includes a feeding conveyor line that conveys along a second direction, a first positioning conveyor line and a second positioning conveyor line that are parallel to the feeding conveyor line and located on both sides of the feeding conveyor line, a transfer conveyor line that conveys along the second direction, and a transfer drive module that drives the transfer conveyor line to move along a first direction to dock with the first positioning conveyor line, the feeding conveyor line, or the second positioning conveyor line. Several types of testing units are arranged on the sides of the first positioning conveyor line and the second positioning conveyor line. The several types of testing units include at least one or more of the following: air tightness testing unit, liquid injection testing unit, safety testing unit, power-on testing unit, and capacity testing unit.

10. The energy storage box production line as described in claim 9, characterized in that: Both the first positioning conveyor line and the second positioning conveyor line are provided with a wire feeding mechanism at their bottom. The wire feeding mechanism includes a third mounting frame, a lifting drive component mounted on the third mounting frame, a first mounting base driven by the lifting drive component to move up and down, and at least one plug-in wire mounted on the first mounting base. The upper end of the first mounting base is provided with at least one positioning hole, and the side of the first mounting base is provided with a receiving opening. At least one plug-in wire is positioned on the first mounting base. The plug-in wire includes a wire and a conductive terminal connected to the upper end of the wire. The upper end of the plug-in wire passes through the positioning hole, and the conductive terminal is located above the first mounting base. The wire is received inside the first mounting base and leads out from the receiving opening to connect with the test unit.

11. A manufacturing process for an energy storage box, characterized in that: It is completed based on the energy storage box production line according to any one of claims 1 to 10, and includes the following steps: Step S1: Place the empty energy storage box on the conveyor line, and the conveyor line will transport it to the assembly station. Several of the transport and assembly mechanisms will sequentially transport and assemble the air conditioner, liquid chiller, and integrated cabinet into the energy storage box. Step S2: The conveyor line transports the assembled energy storage box to the installation station. The feeding device provides a bracket. The first robotic arm drives the clamping mechanism to clamp the bracket from the feeding device and transport the bracket to the predetermined installation position inside the energy storage box. The drive unit drives the installation cantilever to extend into the energy storage box. The alignment unit aligns and calibrates the bracket that has been placed in place. The locking unit locks and fixes the bracket to the inner wall of the energy storage box. Step S3: The conveyor line continues to transport the energy storage box with the assembled bracket to the rear, and the handling and assembly mechanism transports the high-voltage box and installs it into the designated position inside the energy storage box. Step S4: The conveyor line transports the energy storage box with the bracket and high voltage box installed to the box entry station. The feeding device transports the battery pack to the predetermined position. The conveying and pushing unit receives the battery pack from the feeding device. The lifting unit adjusts the left and right angles of the conveying and pushing unit. The lifting unit drives the conveying and pushing unit to rise and fall into place and pushes the battery pack into the bracket that has been installed inside the energy storage box. The bracket supports the battery pack. Step S5: The conveyor line will continue to transport the energy storage box after the battery pack has been placed into the box. During this process, the battery pack and the high voltage box will be connected by wiring harness, and the triode circuit will be installed at the same time. Step S6: The conveyor line transports the energy storage box with completed wiring and pipeline installation to the testing station. Several types of testing units arranged in sequence or in parallel perform various performance tests on the energy storage box, including airtightness test, liquid injection test, safety test, power-on test and capacity test. The energy storage box that has completed all tests is output and stored.

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