Automobile lithium battery production and assembly device and assembly method

Abstract

The application relates to the technical field of new energy automobile lithium battery production, in particular to an automobile lithium battery production and assembling device and an assembling method. The automobile lithium battery production and assembling device comprises a base, first and second lower sliding seats which are slidingly connected to the two ends of the base, first and second limiting seats which are arranged at the top of the base, and corresponding first and second upper sliding seats, a lower steel belt seat which is inserted into the middle of the base, an upper steel belt seat which is inserted between the upper and lower sliding seats, and adjusting components, driving components, lifting sleeve setting components and auxiliary sleeve setting components. The single driving component is used for realizing linkage operation of end extrusion, side surface flushness and lower steel belt sleeve setting, the lifting sleeve setting component is used for completing automatic sleeve setting of the upper steel belt, and the adjusting component can be adapted to the processing of modules with different battery numbers. The application can significantly reduce labor intensity, improve production efficiency and assembling quality consistency, and improve equipment versatility and operation safety.

Description

Technical Field

[0001] This invention relates to the field of lithium battery production technology for new energy vehicles, and in particular to an assembly apparatus and method for producing lithium batteries for automobiles. Background Technology

[0002] This automotive lithium battery production and assembly unit is a core piece of equipment in the lithium battery module manufacturing process. It is primarily used to assemble and secure multiple battery cells with end plates at both ends into a complete battery module. The corresponding assembly methods specify the operational procedures and technical requirements for processes such as battery arrangement, pre-tightening and extrusion, and steel strapping. High-quality assembly equipment and methods ensure the structural strength, dimensional accuracy, and pressure consistency of the battery module, directly affecting the power performance, safety, reliability, and lifespan of new energy vehicles. It is an indispensable and crucial link in the large-scale production of lithium batteries.

[0003] Currently, the industry widely uses semi-automatic automotive lithium battery production and assembly equipment. Its working method is as follows: First, the pre-made lower steel strip is placed on the outer side of the platform on the upper surface of the base where the battery is placed. Then, multiple battery cells are neatly arranged on the worktable according to a preset number, and end plates are placed at both ends of the battery pack. Then, the extrusion device is started, which pushes the movable end plate towards the fixed end plate, applying a set pre-tightening force to the battery pack, so that all battery cells fit tightly together. After the pre-tightening force reaches the set value and remains stable, the operator pushes the lower steel strip upwards to put it on the bottom of the two end plates. Then, the operator manually picks up the pre-made upper steel strip and puts it on the top of the two end plates to complete the assembly of a single battery module.

[0004] However, the aforementioned semi-automatic automotive lithium battery production and assembly equipment has the following shortcomings in actual production: Firstly, the labor intensity is high and the production efficiency is low. During the assembly of each battery module, operators need to manually complete the grabbing, alignment, and fitting of the upper and lower steel strips in sequence. Long hours of work can easily cause operator fatigue. At the same time, the speed of manual operation is limited, and the production capacity of a single machine is difficult to increase, which cannot meet the rapidly growing lithium battery production demand of the new energy vehicle industry.

[0005] Secondly, the assembly quality is unstable and inconsistent. The accuracy of the steel strip installation depends entirely on the experience and skill of the operator. There are significant differences in the operation between different operators or the same operator at different times, which can easily lead to problems such as incomplete installation.

[0006] Third, there are safety hazards and the working environment is harsh. When operators are performing the steel strip installation operation, their hands need to be close to the pressing device and battery modules under pressure. If the pressing device malfunctions or a battery cell explodes, it can easily cause injury to the operator.

[0007] Therefore, it is necessary to provide a new automotive lithium battery production and assembly device and method to solve the above-mentioned technical problems. Summary of the Invention

[0008] To address the aforementioned technical problems, this invention provides an automotive lithium battery production and assembly apparatus and assembly method.

[0009] The automotive lithium battery production and assembly apparatus provided by this invention includes: a base, on the upper surface of which a plurality of battery bodies for assembling battery modules are disposed; a lower steel strip seat is inserted into the middle of the upper surface of the base; a first sliding seat and a second sliding seat are slidably connected to both ends of the base along the horizontal direction; a first limiting seat is fixedly connected to the top of the first sliding seat, and a second limiting seat is fixedly connected to the top of the second sliding seat; each of the first and second limiting seats abuts against an end plate on its opposite side; an adjustment component is disposed inside the base, which drives the first sliding seat to slide horizontally to adapt to the processing of battery modules with different numbers of batteries; a side plate is disposed on both sides of the base, which is used to press the sides of the battery bodies to be assembled; a driving component is disposed at one end of the base near the second sliding seat, which drives the second sliding seat to move to press the two ends of the battery bodies, and the driving component also drives... The side plate rotates and squeezes the side of the battery body; the top of the first limiting seat is symmetrically slidably connected to the first guide post, and the top of the first guide post is fixedly connected to the first upper slide seat; the top of the second limiting seat is symmetrically slidably connected to the second guide post, and the top of the second guide post is fixedly connected to the second upper slide seat; an upper steel strip seat is detachably inserted between the first upper slide seat and the second upper slide seat; multiple steel strip bodies are sleeved on the surfaces of the lower steel strip seat and the upper steel strip seat; the interior of the first limiting seat and the second limiting seat is provided with a lifting and sleeve assembly, which is used to drive the first upper slide seat and the second lower slide seat to rise and fall and sleeve the steel strip body of the upper steel strip seat on the top of the two end plates; the interior of the first limiting seat is provided with an auxiliary sleeve assembly, which cooperates with the driving assembly to sleeve the steel strip body of the lower steel strip seat on the bottom of the two end plates; the top of the first upper slide seat and the second upper slide seat is provided with an installation assembly, which is used to install the upper steel strip seat.

[0010] Preferably, push rings are slidably connected to the outer walls of both the upper and lower steel strip seats, and first springs are symmetrically arranged inside both the upper and lower steel strip seats. One end of the first spring is fixedly connected to the corresponding upper and lower steel strip seats, and the other end of the first spring is fixedly connected to the corresponding push ring. The first spring is always in a stretched state to pull the push ring closer to the battery body. Multiple limiting springs are fixedly connected to the side of the upper and lower steel strip seats closest to the battery body. The elastic force of the limiting springs is greater than the elastic force of the first spring to prevent the push ring from being pushed out of the corresponding upper and lower steel strip seats. Grooves are opened at both ends of the steel strip body.

[0011] Preferably, the mounting assembly includes: a mounting rod; mounting rods are slidably connected to one side of both the first and second upper slides in a horizontal direction; mounting holes for insertion and mating with the mounting rods are respectively opened at both ends of the upper steel strip seat; mounting grooves are opened on the opposite sides of both the first and second upper slides, and the two ends of the upper steel strip seat are slidably connected to the corresponding mounting grooves; a second spring is provided inside both the first and second upper slides, the end of the second spring away from the upper steel strip seat is fixedly connected to the corresponding first and second upper slides, and the end of the second spring near the upper steel strip seat is fixedly connected to the corresponding mounting rod; the second spring is always in a compressed state to push the mounting rod close to the corresponding mounting hole.

[0012] Preferably, the driving assembly includes: a first slider; a horizontally extending first groove is formed inside the second sliding seat, and the first slider is slidably connected inside the first groove; a first lever for actuating the steel strip body is slidably connected vertically inside the second sliding seat, and a first connecting rod is rotatably connected to the bottom of the first lever, the bottom end of the first connecting rod being rotatably connected to the first slider; two telescopic damping rods are symmetrically arranged inside the second limiting seat, and the bottom ends of the telescopic damping rods are fixedly connected to the first lever; a first electric push rod is fixedly connected to one end of the base, and the output end of the first electric push rod is fixedly connected to the first slider; a side plate. Multiple second connecting rods are fixedly connected to the side away from the battery body. Rotating rods are symmetrically rotatably connected inside the base. The bottom ends of the second connecting rods are fixedly connected to the corresponding rotating rods. Driven bevel gears are symmetrically rotatably connected inside the base. The driven bevel gears are fixedly connected to the corresponding rotating rods. Driving bevel gears are symmetrically rotatably connected inside the base. The driving bevel gears mesh with the corresponding driven bevel gears. A gear body is fixedly connected to the end of the driving bevel gear away from the driven bevel gear. A rack is symmetrically slidably connected in the horizontal direction inside the base. The rack meshes with the corresponding gear body. The rack is fixedly connected to the second sliding seat.

[0013] Preferably, the auxiliary sleeve assembly includes: a second electric push rod, the second electric push rod is fixedly connected inside the first sliding seat, and a second lever is fixedly connected to the output end of the second electric push rod.

[0014] Preferably, the lifting sleeve assembly includes: a third electric push rod, the third electric push rod is fixedly connected inside the first limit seat and the second limit seat, and a third lever is fixedly connected to the output end of the third electric push rod.

[0015] Preferably, the adjustment component includes: a fourth electric push rod, which is fixedly connected inside the base, and the output end of the fourth electric push rod is fixedly connected to the first sliding seat.

[0016] Preferably, the first, second, and third levers are each composed of a housing, a third spring, and a locking block. The housing has a locking block that is slidably connected to the end near the battery body and engages with the lever slot. The housing has a third spring symmetrically arranged inside, with one end fixedly connected to the housing and the other end fixedly connected to the locking block. The third spring is always in a compressed state to push the locking block closer to the battery body. The spring force of the third spring is less than that of the second spring.

[0017] Preferably, slots are provided at the top and bottom middle of the end plate, and the steel strip body is inserted into the slots; the end plate, the first sliding seat, the second sliding seat, the first limiting seat, the second limiting seat, the first upper sliding seat and the second upper sliding seat are all provided with second sliding grooves for the shell to slide.

[0018] The present invention also provides an assembly method based on the above-mentioned automotive lithium battery production and assembly apparatus, comprising: S1. Based on the number of battery bodies in the battery module to be produced, activate the fourth electric push rod. The fourth electric push rod drives the first sliding seat to move to a preset position, thereby driving the first limiting seat and the first upper sliding seat to move synchronously. S2. Activate the two third electric push rods. The output ends of the third electric push rods extend, pushing the third lever connected to them to rise. During the rising process, the first and second upper slides remain stationary under their own gravity. The locking block of the third lever is squeezed into the housing by the lowest steel strip on the upper steel strip seat. When the housing of the third lever abuts against the inner wall of the corresponding first and second upper slides, the locking block is aligned and inserted into the slot at the end of the steel strip. At this time, the third electric push rod pushes the first and second upper slides upward through the housing of the third lever, providing space for the placement of the battery body and end plate. S3. After placing multiple battery bodies and two end plates on the base to form the battery module to be assembled, start the first electric push rod. The output end of the first electric push rod extends. At this time, the telescopic damping rod prevents the first push block from sliding upward. The first slider is relatively stationary in the first slide groove. Therefore, the first electric push rod pushes the second sliding seat and the rack to move towards the first sliding seat synchronously. The rack drives the cylindrical gear to rotate, and then drives the driven bevel gear and the rotating rod to rotate through the active bevel gear. The rotating rod drives the side plate to rotate through the second connecting rod. When the second sliding seat abuts against one end of the battery module, the side plate rotates 90° and abuts against the side of the battery module, making the sides of multiple batteries flush. At this time, the locking block of the first push block inside the second sliding seat is aligned and inserted into the groove at the uppermost end of the steel strip on the lower steel strip seat. S4. After the second sliding seat comes into contact with the battery module, the battery module prevents the second sliding seat from moving further, and continues to activate the first electric push rod and simultaneously activate the second electric push rod; the first electric push rod pushes the first slider to slide in the first slide groove toward the battery module, and the first slider drives the first lever to move upward through the first connecting rod and squeeze the telescopic damping rod; the second electric push rod drives the second lever to move upward; the first lever and the second lever together drive the uppermost steel strip on the lower steel strip seat to overcome the elastic force of the limiting spring and move upward, so that the steel strip is fitted into the slots at the bottom of the two end plates; S5. Activate the third electric push rod. The output end of the third electric push rod shortens, causing the first upper slide, the second upper slide, and the upper steel belt seat to descend as a whole. When the lower surface of the first upper slide abuts against the upper surface of the first lower slide and the lower surface of the second upper slide abuts against the upper surface of the second lower slide, the first and second upper slides can no longer descend. The third electric push rod continues to retract, causing the steel belt at the bottom of the upper steel belt seat to move downwards against the elastic force of the limiting spring through the third lever, and the steel belt is fitted into the slots at the top of the two end plates. S6. Reactivate the third electric push rod to extend its output end, causing the third lever to rise, providing space for removing the assembled battery module and allowing the locking block to engage with the slot of the next steel strip; activate the first electric push rod to shorten its output end, causing the second sliding seat and drive assembly to reset. S7. When it is necessary to replace the upper steel belt seat, move the two mounting rods outward to disengage them from the mounting holes, and then pull out the upper steel belt seat and replace it with a new one. S8. When it is necessary to replace the lower steel belt seat, extend the third electric push rod to the highest position, and you can directly remove the lower steel belt seat and replace it with a new one.

[0019] Compared with related technologies, the automotive lithium battery production and assembly apparatus and assembly method provided by the present invention have the following beneficial effects: 1. Multi-action mechanical linkage integration effectively reduces equipment complexity and control difficulty. This invention achieves the sequential linkage of three core actions—end compression, side flushing, and lower steel strip actuation—through a single first electric push rod: When the first electric push rod extends, it first drives the second sliding block to move as a whole through the damping effect of the telescopic damping rod, completing the end pre-tightening of the battery module; simultaneously, it drives the two side plates to rotate 90° synchronously through the rack-cylindrical gear-bevel gear transmission mechanism, completing the side flushing of the battery cell; after the second sliding block abuts against the battery module, the first electric push rod continues to extend, overcoming the damping force of the telescopic damping rod to drive the first slider to slide relative to it, and drives the first actuating block to rise through the first connecting rod, completing the actuation and sleeve of the lower steel strip.

[0020] This design significantly simplifies the mechanical structure and control system of the device, reducing equipment manufacturing costs and debugging difficulties; at the same time, all actions are synchronized through a purely mechanical structure, effectively reducing timing deviations that may be caused by electrical control and improving the reliability of equipment operation.

[0021] 2. Automatic and continuous installation of upper and lower steel strips significantly reduces labor intensity and improves production efficiency. This invention achieves fully automatic sleeve placement of upper and lower steel strips through the coordinated operation of a lifting sleeve assembly and an auxiliary sleeve assembly: the third electric push rod in the lifting sleeve assembly first pushes the first and second upper slides to rise via a third lever to provide operating space, and after the battery is placed, it drives the upper slides and the upper steel strip seat to descend as a whole, and finally drives the upper steel strip to move downward to complete the sleeve placement; the second electric push rod in the auxiliary sleeve assembly moves synchronously with the first lever in the drive assembly to jointly complete the upward sleeve placement of the lower steel strip.

[0022] Meanwhile, the push rings on the upper and lower steel strip seats, under the tension of the first spring, can automatically push the remaining steel strip towards the battery module, ensuring that the next steel strip is automatically positioned after each application, achieving continuous automatic feeding of the steel strip. This design completely replaces the manual application of steel strips, avoiding frequent bending over by operators and effectively reducing labor intensity; at the same time, the mechanical operation speed is much higher than that of manual operation, significantly improving production efficiency.

[0023] 3. Modular adjustment design significantly improves equipment versatility and changeover efficiency. This invention achieves rapid adaptation to battery modules of different specifications through an adjustable component: the fourth electric push rod drives the first sliding base to slide along the length of the base, allowing stepless adjustment of the distance between the first and second limit seats to accommodate the processing requirements of battery modules with different numbers of batteries. Simultaneously, the upper and lower steel strip seats adopt a detachable plug-in design, and combined with the quick-release structure of the installation components, replacing steel strip seats of different specifications can be completed in just a few minutes.

[0024] This design eliminates the need to replace the entire set of tooling fixtures, as well as complex mechanical adjustments and parameter calibrations. The time required to switch between different battery module models on the production line can be reduced from several hours to just over ten minutes, significantly improving the production flexibility and changeover efficiency of the equipment. It is particularly suitable for the production needs of multi-variety, small-batch battery modules, effectively improving the overall utilization rate of the equipment.

[0025] 4. Precise mechanical positioning effectively improves assembly quality and consistency. All core actions of this invention are precisely positioned through mechanical structures: the travel of the second sliding base is precisely controlled by the length of the battery module to ensure the consistency of the end preload; the rotation angle of the side plate is precisely controlled by the rack-and-pinion transmission ratio to ensure that the side is flush with the plate every time it rotates 90°; the locking block of the push block is precisely engaged with the groove of the steel strip to ensure that the two ends of the steel strip move synchronously and avoid the steel strip tilting; the steel strip is finally locked into the slot of the end plate to ensure accurate mounting position.

[0026] This design eliminates errors caused by manual operation, effectively improves the positional accuracy of the steel strip and the consistency of the binding force, reduces defective products caused by loose or misaligned steel strips, and enhances the overall structural strength and safety reliability of the battery module.

[0027] 5. The human-machine separation operation mode significantly reduces operational safety risks. This invention achieves fully automated operation of the steel strip sleeve process. Operators only need to load the batteries and end plates and unload the assembled modules, without needing to approach the battery modules and extrusion device under high pressure and pre-tension during the steel strip sleeve process. This design fundamentally avoids the risk of personal injury caused by malfunction of the extrusion device or abnormality of individual battery cells, and also reduces damage to equipment and products caused by dropped tools during manual operation, significantly improving the safety of the production process. Attached Figure Description

[0028] Figure 1 A schematic diagram of the automotive lithium battery production and assembly apparatus provided by the present invention; Figure 2 for Figure 1 The diagram shows the structure of the first upper slide. Figure 3 for Figure 1 The diagram shows the structure of the upper steel belt seat; Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of the upper steel belt seat is shown; Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure of the first upper slide block is shown; Figure 6 for Figure 1 A schematic diagram of the cross-sectional structure of the third lever shown; Figure 7 for Figure 2 A schematic diagram of the cross-sectional structure of the base plate shown; Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure of the second sliding seat is shown; Figure 9 for Figure 7The diagram shows the structure of the lower steel belt seat; Figure 10 for Figure 9 The diagram shows a cross-sectional view of the lower steel strip support. Figure 11 for Figure 7 The diagram shows the structure of the first limiting seat; Figure 12 for Figure 11 The diagram shows the structure of the fourth electric actuator; Figure 13 for Figure 12 A schematic diagram of the cross-sectional structure of the second lever shown; Figure 14 A flowchart illustrating the assembly method of the automotive lithium battery production and assembly apparatus provided by the present invention.

[0029] Labels in the diagram: 1. Base; 2. Battery body; 3. Lower steel strip seat; 4. First sliding seat; 5. Second sliding seat; 6. First limiting seat; 7. Second limiting seat; 8. End plate; 9. Side plate; 10. First guide post; 11. Second guide post; 12. First upper sliding seat; 13. Second upper sliding seat; 14. Upper steel strip seat; 15. Steel strip body; 16. Push ring; 17. First spring; 18. Limiting spring; 19. Slot; 20. Mounting rod; 21. Mounting hole; 22. Mounting groove; 23. Second spring; 24. 25. First slider; 26. First slide groove; 27. First lever; 28. Second lever; 29. ​​Third lever; 20. First connecting rod; 31. Telescopic damping rod; 32. First electric push rod; 33. Second connecting rod; 34. Rotating rod; 35. Driven bevel gear; 36. Driven bevel gear; 37. Gear body; 38. Rack; 39. Housing; 40. Third spring; 41. Locking block; 42. Second electric push rod; 43. Third electric push rod; 44. Fourth electric push rod; 45. Slot; 46. Second slide groove. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0031] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0032] like Figures 1 to 13As shown, an automotive lithium battery production and assembly apparatus and method are disclosed. The automotive lithium battery production and assembly apparatus includes: a base 1, with multiple battery bodies 2 for assembling battery modules disposed on the upper surface of the base 1; a lower steel strip seat 3 detachably inserted into the middle of the upper surface of the base 1; and a first sliding seat 4 and a second sliding seat 5 slidably connected to the two ends of the base 1 along the horizontal direction. A first limiting seat 6 is fixedly connected to the top of the first sliding seat 4, and a second limiting seat 7 is fixedly connected to the top of the second sliding seat 5. The opposing sides of the first limiting seat 6 and the second limiting seat 7 are respectively used to abut against the two end plates 8 of the battery modules to be assembled. An adjustment component is disposed inside the base 1 to drive the first sliding seat 4 to slide horizontally to accommodate battery modules with different numbers of batteries. A side plate 9 is disposed on each side of the base 1 to press the side of the battery body 2 to be assembled. A drive assembly is provided at one end of the base 1 near the second sliding seat 5. The drive assembly is used to drive the second sliding seat 5 to move so as to squeeze the two ends of the battery body 2. At the same time, the drive assembly will also drive the side plate 9 to rotate and squeeze the side of the battery body 2. The top of the first limiting seat 6 is symmetrically slidably connected to a first guide post 10, and the top of the first guide post 10 is fixedly connected to a first upper slide seat 12. The top of the second limiting seat 7 is symmetrically slidably connected to a second guide post 11, and the top of the second guide post 11 is fixedly connected to a second upper slide seat 13. An upper steel strip seat 14 is detachably inserted between the first upper slide seat 12 and the second upper slide seat 13. Multiple steel strip bodies 15 are fitted onto the surfaces of both the lower steel strip seat 3 and the upper steel strip seat 14. The first limiting seat 6 and the second limiting seat 7 are both equipped with lifting and fitting assemblies. The lifting and fitting assemblies are used to drive the first upper slide seat 12 and the second upper slide seat 13 to rise and fall, and to fit the steel strip body 15 of the upper steel strip seat 14 onto the top of the two end plates 8. The first limiting seat 6 is equipped with an auxiliary fitting assembly. The auxiliary fitting assembly cooperates with the driving assembly to fit the steel strip body 15 of the lower steel strip seat 3 onto the bottom of the two end plates 8. The top of both the first upper slide 12 and the second upper slide 13 are provided with mounting components, which are used for detachable mounting of the upper steel belt seat 14.

[0033] like Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 9 , Figure 10As shown, push rings 16 are slidably connected to the outer walls of both the upper steel strip seat 14 and the lower steel strip seat 3. First springs 17 are symmetrically arranged axially inside both the upper steel strip seat 14 and the lower steel strip seat 3. One end of the first spring 17 is fixedly connected to the inner wall of the corresponding upper steel strip seat 14 and lower steel strip seat 3, and the other end of the first spring 17 is fixedly connected to the corresponding push ring 16. The first spring 17 is always in a stretched state to pull the push ring 16 closer to the battery body 2. Multiple limiting springs 18 are fixedly connected to the side of both the upper steel strip seat 14 and the lower steel strip seat 3 closest to the battery body 2. The elastic force of the limiting springs 18 is greater than the elastic force of the first spring 17 to prevent the push ring 16 from being pushed out of the corresponding upper steel strip seat 14 and lower steel strip seat 3, thereby limiting the steel strip body 15 between the push ring 16 and the limiting springs 18. Both ends of the steel strip body 15 are provided with slots 19 for insertion and engagement with the locking blocks 40 of the lever.

[0034] like Figure 1 and Figure 2 As shown, the mounting assembly includes mounting rods 20. The outer walls of the first upper slide block 12 and the second upper slide block 13 are slidably connected to the mounting rods 20 in a horizontal direction. The upper steel band seat 14 has mounting holes 21 at both ends that engage with the mounting rods 20. Mounting grooves 22 are provided on the opposite sides of the first upper slide block 12 and the second upper slide block 13, and the two ends of the upper steel band seat 14 are slidably connected to the corresponding mounting grooves 22. A second spring 23 is provided inside both the first upper slide block 12 and the second upper slide block 13. The end of the second spring 23 away from the upper steel band seat 14 is fixedly connected to the inner wall of the corresponding first upper slide block 12 and the second upper slide block 13, while the end of the second spring 23 near the upper steel band seat 14 is fixedly connected to the corresponding mounting rod 20. The second spring 23 is always in a compressed state to push the mounting rod 20 close to the corresponding mounting hole 21 and insert it into the mounting hole 21, thus achieving the fixed installation of the upper steel band seat 14.

[0035] like Figure 7 and Figure 8As shown, the driving assembly includes a first slider 24. A horizontally extending first groove 25 is formed inside the second sliding base 5, and the first slider 24 is slidably connected inside the first groove 25. A first lever 26 for actuating the steel strip body 15 is slidably connected vertically inside the second sliding base 5. A first connecting rod 29 is rotatably connected to the bottom of the first lever 26, and the bottom end of the first connecting rod 29 is rotatably connected to the first slider 24. Two telescopic damping rods 30 are symmetrically arranged inside the second sliding base 5, and the bottom ends of the telescopic damping rods 30 are fixedly connected to the first lever 26. A first electric push rod 31 is fixedly connected to one end of the base 1, and the output end of the first electric push rod 31 is fixedly connected to the first slider 24. At least one second connecting rod 32 is fixedly connected to the side of each side plate 9 away from the battery body 2. A rotating rod 33 is symmetrically rotatably connected inside the base 1, and the bottom ends of the second connecting rods 32 are fixedly connected to the corresponding rotating rods 33. A driven bevel gear 34 is symmetrically rotatably connected inside the base 1, and the driven bevel gear 34 is coaxially fixedly connected to the corresponding rotating rod 33. A drive bevel gear 35 is symmetrically rotatably connected inside the base 1, and the drive bevel gear 35 meshes with the corresponding driven bevel gear 34. A cylindrical gear is coaxially fixedly connected to the end of the drive bevel gear 35 away from the driven bevel gear 34. A rack 37 is symmetrically slidably connected in the horizontal direction inside the base 1, and the rack 37 meshes with the corresponding cylindrical gear. One end of the rack 37 is fixedly connected to the second sliding seat 5.

[0036] like Figure 5 , Figure 8 and Figure 11 As shown, the auxiliary sleeve assembly includes a second electric push rod 41, which is fixedly connected inside the first sliding seat 4, and a second lever 27 is fixedly connected to the output end of the second electric push rod 41. The lifting sleeve assembly includes a third electric push rod 42, which is fixedly connected inside both the first limiting seat 6 and the second limiting seat 7, and a third lever 28 is fixedly connected to the output end of the third electric push rod 42. The adjustment assembly includes a fourth electric push rod 43, which is fixedly connected inside the base 1, and the output end of the fourth electric push rod 43 is fixedly connected to the first sliding seat 4.

[0037] like Figure 5 , Figure 6 , Figure 8 , Figure 12 and Figure 13As shown, the first lever 26, the second lever 27, and the third lever 28 have the same structure, each consisting of a housing 38, a third spring 39, and a locking block 40. A locking block 40, which engages with the lever slot 19, is slidably connected to one end of the housing 38 near the battery body 2. The third spring 39 is symmetrically arranged inside the housing 38, with one end fixedly connected to the inner wall of the housing 38 and the other end fixedly connected to the locking block 40. The third spring 39 is always in a compressed state to push the locking block 40 closer to the battery body 2 and out of the housing 38. The elastic force of the third spring 39 is less than that of the second spring 23, ensuring that the locking block 40 can be pressed into the housing 38 by the steel strip body 15.

[0038] like Figure 5 , Figure 6 and Figure 11 As shown, slots 44 are provided at the top and bottom center of the end plate 8. The steel strip body 15 is inserted into the slots 44 to achieve a tight connection between the steel strip body 15 and the end plate 8. The end plate 8, the first sliding seat 4, the second sliding seat 5, the first limiting seat 6, the second limiting seat 7, the first upper sliding seat 12 and the second upper sliding seat 13 are all provided with second sliding grooves 45 for the housing 38 of the lever to slide, ensuring that the lever can slide freely along a preset path.

[0039] This invention also discloses an assembly method for an automotive lithium battery production assembly apparatus, comprising the following steps: S1. Based on the number of battery bodies 2 of the battery module to be produced, start the fourth electric push rod 43. The fourth electric push rod 43 drives the first sliding seat 4 to move along the length direction of the base 1 to the preset position, thereby driving the first limiting seat 6 and the first upper sliding seat 12 to move synchronously, adjusting the distance between the first limiting seat 6 and the second limiting seat 7 to match the length of the battery module to be assembled.

[0040] S2. Activate the two third electric push rods 42. The output ends of the third electric push rods 42 extend, pushing the third lever 28 connected to them to rise along the second slide groove 45. During the rising process, the first upper slide 12 and the second upper slide 13 remain stationary under their own weight. The locking block 40 of the third lever 28 is squeezed into the housing 38 by the lowest steel strip body 15 on the upper steel strip seat 14. When the housing 38 of the third lever 28 abuts against the inner wall of the corresponding first upper slide 12 and second upper slide 13, the locking block 40 is just aligned and inserted into the slot 19 at the end of the steel strip body 15. At this time, the third electric push rod 42 pushes the first upper slide 12 to move upward along the first guide post 10 and the second upper slide 13 to move upward along the second guide post 11 through the housing 38 of the third lever 28, providing sufficient space for the placement of the battery body 2 and the end plate 8.

[0041] S3. Arrange multiple battery bodies 2 neatly on the base 1 according to a preset number, and place end plates 8 at both ends of the battery pack to form the battery module to be assembled; activate the first electric push rod 31, and the output end of the first electric push rod 31 extends. At this time, the damping force of the telescopic damping rod 30 prevents the first toggle block 26 from sliding upward, so that the first slider 24 is relatively stationary in the first slide groove 25. Therefore, the first electric push rod 31 pushes the second sliding seat 5 and the rack 37 to move synchronously towards the first sliding seat 4. The rack 37 drives the cylindrical gear to rotate, and the cylindrical gear drives the driven bevel gear 34 and the rotating rod 33 to rotate synchronously through the driving bevel gear 35. The rotating rod 33 drives the side plate 9 to rotate towards the battery module through the second connecting rod 32. When the second sliding seat 5 abuts against one end plate 8 of the battery module, the side plate 9 rotates 90° and abuts against the side of the battery module, making the sides of all battery bodies 2 flush. At this time, the locking block 40 of the first lever 26 inside the second sliding seat 5 is aligned with and inserted into the lever groove 19 at the end of the uppermost steel strip body 15 on the lower steel strip seat 3.

[0042] S4. After the second sliding seat 5 comes into contact with the battery module, the reaction force of the battery module prevents the second sliding seat 5 from moving further, and the first electric push rod 31 is activated and the second electric push rod 41 is activated simultaneously. The first electric push rod 31 pushes the first slider 24 to slide in the first slide groove 25 toward the battery module. The first slider 24 drives the first lever 26 to move upward along the second slide groove 45 through the first connecting rod 29 and squeezes the telescopic damping rod 30; the second electric push rod 41 drives the second lever 27 to move upward along the second slide groove 45. The locking blocks 40 of the first lever 26 and the second lever 27 are respectively inserted into the slots 19 at both ends of the uppermost steel strip body 15 of the lower steel strip seat 3, and together drive the steel strip body 15 to move upward against the elastic force of the limiting spring piece 18 until both ends of the steel strip body 15 are respectively locked into the slots 44 at the bottom of the two end plates 8, completing the installation of the lower steel strip.

[0043] S5. Activate the third electric push rod 42 to shorten its output end. The third electric push rod 42 drives the third lever 28 to descend along the second slide groove 45. Since the locking block 40 of the third lever 28 is inserted into the slot 19 of the steel strip body 15 at the bottom of the upper steel strip seat 14, and the first upper slide 12 and the second upper slide 13 can slide freely along the guide post, the third electric push rod 42 drives the first upper slide 12, the second upper slide 13, and the upper steel strip seat 14 to descend as a whole. When the lower surface of the first upper slide 12 abuts against the upper surface of the first lower slide 4, and the lower surface of the second upper slide 13 abuts against the upper surface of the second lower slide 5, the first upper slide 12 and the second upper slide 13 can no longer descend. The third electric push rod 42 continues to retract, and through the third lever 28, it drives the steel strip body 15 at the bottom of the upper steel strip seat 14 to overcome the elastic force of the limiting spring 18 and move downward until both ends of the steel strip body 15 are respectively inserted into the slots 44 at the top of the two end plates 8, thus completing the installation of the upper steel strip.

[0044] S6. Reactivate the third electric push rod 42 to extend its output end, causing the third lever 28 to rise along the second slide groove 45, providing space for removing the assembled battery module. At the same time, the locking block 40 of the third lever 28 automatically engages with the slot 19 of the next steel strip body 15 on the upper steel strip seat 14 under the elastic force of the third spring 39. Activate the first electric push rod 31 to shorten its output end, causing the second sliding seat 5, rack 37, side plate 9 and drive assembly to reset as a whole, preparing for the assembly of the next battery module.

[0045] S7. When all the steel strip bodies 15 on the upper steel strip seat 14 have been used up and need to be replaced, move the two mounting rods 20 outwards so that the mounting rods 20 overcome the elastic force of the second spring 23 and get out of the insertion of the mounting holes 21 at both ends of the upper steel strip seat 14, and then pull out the upper steel strip seat 14; insert the two ends of the new upper steel strip seat 14 into the mounting grooves 22 of the first upper slide 12 and the second upper slide 13 respectively, release the mounting rods 20, and the mounting rods 20 will automatically insert into the mounting holes 21 of the upper steel strip seat 14 under the elastic force of the second spring 23, thus completing the replacement of the upper steel strip seat 14.

[0046] S8. When all the steel belt bodies 15 on the lower steel belt seat 3 are used up and need to be replaced, extend the third electric push rod 42 to the highest position, and the lower steel belt seat 3 can be directly pulled out from the base 1; insert the new lower steel belt seat 3 into the insertion hole in the middle of the upper surface of the base 1 to complete the replacement of the lower steel belt seat 3.

[0047] The working principle of the automotive lithium battery production and assembly device provided by this invention is as follows: When the device is working, firstly, according to the number of battery bodies 2 of the battery module to be produced, the fourth electric push rod 43 in the adjustment component is activated. The fourth electric push rod 43 drives the first sliding seat 4 to slide along the length direction of the base 1. The first sliding seat 4 drives the first limiting seat 6 and the first upper sliding seat 12 to move synchronously to the preset position, thereby adjusting the distance between the first limiting seat 6 and the second limiting seat 7 to adapt to the processing requirements of battery modules with different numbers of batteries.

[0048] Subsequently, the two third electric push rods 42 in the lifting and mounting assembly are activated. The output ends of the third electric push rods 42 extend, pushing the third lever 28 connected to them to rise. In the initial stage of rising, the first upper slide 12 and the second upper slide 13 remain stationary under their own weight. The locking block 40 of the third lever 28 is squeezed into the housing 38 by the lowest steel strip body 15 on the upper steel strip seat 14. When the housing 38 of the third lever 28 abuts against the inner wall of the corresponding first upper slide 12 and the second upper slide 13, the locking block 40 is just aligned and inserted into the slot 19 at the end of the steel strip body 15. At this time, the third electric push rod 42 pushes the first upper slide 12 and the second upper slide 13 to move upward along the first guide post 10 and the second guide post 11 through the housing 38 of the third lever 28, providing sufficient space for the placement of the battery body 2 and the end plate 8.

[0049] After placing multiple battery bodies 2 and two end plates 8 sequentially on the base 1 to form the battery module to be assembled, the first electric push rod 31 in the drive assembly is activated, and the output end of the first electric push rod 31 extends. At this time, the damping force of the telescopic damping rod 30 prevents the first toggle block 26 from sliding upward, so that the first slider 24 is relatively stationary in the first groove 25 inside the second sliding seat 5. Therefore, the first electric push rod 31 pushes the second sliding seat 5 and the rack 37 to move synchronously towards the first sliding seat 4. The rack 37 drives the cylindrical gear meshing with it to rotate, and the cylindrical gear drives the driven bevel gear 34 and the rotating rod 33 to rotate synchronously through the driving bevel gear 35. The rotating rod 33 drives the side plate 9 to rotate towards the battery module through the second connecting rod 32. When the second sliding seat 5 abuts against one end plate 8 of the battery module, the side plate 9 rotates 90° and abuts against the side of the battery module, making the sides of all battery bodies 2 flush. At this time, the locking block 40 of the first lever 26 inside the second sliding seat 5 is aligned with and inserted into the lever groove 19 at the end of the uppermost steel strip body 15 on the lower steel strip seat 3.

[0050] After the second sliding seat 5 comes into contact with the battery module, the reaction force of the battery module prevents the second sliding seat 5 from moving further, and continues to activate the first electric push rod 31 and simultaneously activate the second electric push rod 41 in the auxiliary sleeve assembly. The first electric push rod 31 pushes the first slider 24 to slide in the first slide groove 25 toward the battery module. The first slider 24 drives the first lever 26 to move upward through the first connecting rod 29 and squeezes the telescopic damping rod 30; the second electric push rod 41 drives the second lever 27 to move upward. The locking blocks 40 of the first lever 26 and the second lever 27 are respectively inserted into the slots 19 at both ends of the uppermost steel strip body 15 of the lower steel strip seat 3, and together drive the steel strip body 15 to move upward against the elastic force of the limiting spring piece 18 until both ends of the steel strip body 15 are respectively locked into the slots 44 at the bottom of the two end plates 8, completing the sleeve of the lower steel strip.

[0051] Next, the third electric push rod 42 is activated to shorten its output end. The third electric push rod 42 drives the third lever 28 to descend. Since the locking block 40 of the third lever 28 is inserted into the slot 19 of the steel strip body 15 at the bottom of the upper steel strip seat 14, and the first upper slide 12 and the second upper slide 13 can slide freely along the guide post, the third electric push rod 42 drives the first upper slide 12, the second upper slide 13 and the upper steel strip seat 14 to descend as a whole. When the lower surface of the first upper slide 12 abuts against the upper surface of the first lower slide 4 and the lower surface of the second upper slide 13 abuts against the upper surface of the second lower slide 5, the first upper slide 12 and the second upper slide 13 can no longer descend. The third electric push rod 42 continues to retract, and through the third lever 28, it drives the steel strip body 15 at the bottom of the upper steel strip seat 14 to move downward against the elastic force of the limiting spring 18 until both ends of the steel strip body 15 are respectively inserted into the slots 44 at the top of the two end plates 8, completing the installation of the upper steel strip.

[0052] After the steel strip is installed, the third electric push rod 42 is activated again to extend its output end, which drives the third lever 28 to rise, providing space for removing the assembled battery module. At the same time, the locking block 40 of the third lever 28 automatically engages with the slot 19 of the next steel strip body 15 on the upper steel strip seat 14. The first electric push rod 31 is activated to shorten its output end, which drives the second sliding seat 5, rack 37, side plate 9 and drive assembly to reset as a whole, preparing for the assembly of the next battery module.

[0053] When all the steel strip bodies 15 on the upper steel strip seat 14 are used up and need to be replaced, move the two mounting rods 20 outward to disengage the mounting rods 20 from the mounting holes 21 at both ends of the upper steel strip seat 14, and then pull out the upper steel strip seat 14 and replace it with a new one; when all the steel strip bodies 15 on the lower steel strip seat 3 are used up and need to be replaced, extend the third electric push rod 42 to the highest position, and then directly remove the lower steel strip seat 3 and replace it with a new one.

[0054] The push rings 16 on the upper steel strip seat 14 and the lower steel strip seat 3, under the pulling force of the first spring 17, always push the remaining steel strip body 15 towards the battery module, ensuring that after each installation, the next steel strip body 15 can automatically move to the limiting spring 18 and wait for the next installation operation.

[0055] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automotive lithium battery production and assembly apparatus, characterized in that, include: The base (1) has multiple battery bodies (2) for assembling battery modules on its upper surface. A lower steel strip seat (3) is inserted into the middle of the upper surface of the base (1). The two ends of the base (1) are respectively slidably connected in the horizontal direction to a first sliding seat (4) and a second sliding seat (5). A first limiting seat (6) is fixedly connected to the top of the first sliding seat (4), and a second limiting seat (7) is fixedly connected to the top of the second sliding seat (5). An end plate (8) abuts against the opposite side of the first limiting seat (6) and the second limiting seat (7). The inner side of the base (1) The base is equipped with an adjustment component, which is used to drive the first sliding seat (4) to slide horizontally to adapt to the processing of battery modules with different battery numbers; a side plate (9) is provided on each side of the base (1), and the side plate (9) is used to press the side of the battery body (2) to be assembled; a drive component is provided at one end of the base (1) near the second sliding seat (5), and the drive component is used to drive the second sliding seat (5) to move to press the two ends of the battery body (2), and at the same time the drive component will also drive the side plate (9) to rotate and press the side of the battery body (2); the first limiting seat ( The top of the second limiting seat (7) is symmetrically slidably connected to a first guide post (10), and the top of the first guide post (10) is fixedly connected to a first upper slide seat (12). The top of the second limiting seat (7) is symmetrically slidably connected to a second guide post (11), and the top of the second guide post (11) is fixedly connected to a second upper slide seat (13). An upper steel strip seat (14) is detachably inserted between the first upper slide seat (12) and the second upper slide seat (13). Multiple steel strip bodies (15) are fitted on the surfaces of the lower steel strip seat (3) and the upper steel strip seat (14). The first limiting seat (6) and the second limiting seat (7) are also connected. The interior of each is equipped with a lifting sleeve assembly, which is used to drive the first upper slide (12) and the second lower slide (5) to rise and fall and to sleeve the steel strip body (15) of the upper steel strip seat (14) on the top of the two end plates (8); the interior of the first limiting seat (6) is equipped with an auxiliary sleeve assembly, which cooperates with the driving assembly to sleeve the steel strip body (15) of the lower steel strip seat (3) on the bottom of the two end plates (8); the top of the first upper slide (12) and the second upper slide (13) are both equipped with an installation assembly, which is used to install the upper steel strip seat (14).

2. The automotive lithium battery production and assembly apparatus according to claim 1, characterized in that, Push rings (16) are slidably connected to the outer walls of the upper steel belt seat (14) and the lower steel belt seat (3). First springs (17) are symmetrically arranged inside the upper steel belt seat (14) and the lower steel belt seat (3). One end of the first spring (17) is fixedly connected to the corresponding upper steel belt seat (14) and the lower steel belt seat (3), and the other end of the first spring (17) is fixedly connected to the corresponding push ring (16). The first spring (17) is always in a stretched state to pull the push ring (16) closer to the battery body (2). Multiple limiting springs (18) are fixedly connected to the side of the upper steel belt seat (14) and the lower steel belt seat (3) close to the battery body (2). The elastic force of the limiting springs (18) is greater than that of the first spring (17) to prevent the push ring (16) from being pushed out of the corresponding upper steel belt seat (14) and the lower steel belt seat (3). The two ends of the steel belt body (15) are provided with slots (19).

3. The automotive lithium battery production and assembly apparatus according to claim 2, characterized in that, The mounting assembly includes: a mounting rod (20); the mounting rod (20) is slidably connected to one side of the first upper slide (12) and the second upper slide (13) in the horizontal direction; the two ends of the upper steel belt seat (14) are respectively provided with mounting holes (21) that are inserted and matched with the mounting rod (20); the opposite sides of the first upper slide (12) and the second upper slide (13) are respectively provided with mounting grooves (22); the two ends of the upper steel belt seat (14) are respectively slidably connected to the corresponding mounting grooves (22); the first upper slide (12) and the second upper slide (13) are respectively provided with a second spring (23); the end of the second spring (23) away from the upper steel belt seat (14) is fixedly connected to the corresponding first upper slide (12) and the second upper slide (13); the end of the second spring (23) close to the upper steel belt seat (14) is fixedly connected to the corresponding mounting rod (20); the second spring (23) is always in a compressed state to push the mounting rod (20) close to the corresponding mounting hole (21).

4. The automotive lithium battery production and assembly apparatus according to claim 1, characterized in that, The drive assembly includes: a first slider (24); a horizontally extending first groove (25) is provided inside the second sliding seat (5), and the first slider (24) is slidably connected inside the first groove (25); a first lever (26) for actuating the steel strip body (15) is slidably connected inside the second sliding seat (5) in the vertical direction, and a first connecting rod (29) is rotatably connected to the bottom of the first lever (26), and the bottom end of the first connecting rod (29) is rotatably connected to the first slider (24); two telescopic damping rods (30) are symmetrically arranged inside the second limiting seat (7), and the bottom end of the telescopic damping rods (30) is fixedly connected to the first lever (26); a first electric push rod (31) is fixedly connected to one end of the base (1), and the output end of the first electric push rod (31) is fixedly connected to the first slider (24); the side plate (9) is away from the battery body. (2) One side is fixedly connected to multiple second connecting rods (32), and the inside of the base (1) is symmetrically rotatably connected to rotating rods (33). The bottom ends of the second connecting rods (32) are fixedly connected to the corresponding rotating rods (33). The inside of the base (1) is symmetrically rotatably connected to driven bevel gears (34), and the driven bevel gears (34) are fixedly connected to the corresponding rotating rods (33). The inside of the base (1) is symmetrically rotatably connected to driving bevel gears (35), and the driving bevel gears (35) mesh with the corresponding driven bevel gears (34). The end of the driving bevel gears (35) away from the driven bevel gears (34) is fixedly connected to a gear body (36). The inside of the base (1) is symmetrically slidably connected to a rack (37) in the horizontal direction, and the rack (37) meshes with the corresponding gear body (36). The rack (37) is fixedly connected to the second sliding seat (5).

5. The automotive lithium battery production and assembly apparatus according to claim 1, characterized in that, The auxiliary assembly includes: a second electric push rod (41), the second electric push rod (41) is fixedly connected inside the first sliding seat (4), and a second lever (27) is fixedly connected to the output end of the second electric push rod (41).

6. The automotive lithium battery production and assembly apparatus according to claim 1, characterized in that, The lifting sleeve assembly includes: a third electric push rod (42), and the third electric push rod (42) is fixedly connected inside the first limit seat (6) and the second limit seat (7). The output end of the third electric push rod (42) is fixedly connected to a third lever (28).

7. The automotive lithium battery production and assembly apparatus according to claim 1, characterized in that, The adjustment assembly includes: a fourth electric push rod (43), which is fixedly connected inside the base (1), and the output end of the fourth electric push rod (43) is fixedly connected to the first sliding seat (4).

8. The automotive lithium battery production and assembly apparatus according to claim 7, characterized in that, The first lever (26), the second lever (27), and the third lever (28) have the same structure, each consisting of a housing (38), a third spring (39), and a locking block (40). The housing (38) is slidably connected to the end near the battery body (2) with a locking block (40) that engages with the slot (19). The housing (38) is symmetrically provided with a third spring (39) inside. One end of the third spring (39) is fixedly connected to the housing (38), and the other end of the third spring (39) is fixedly connected to the locking block (40). The third spring (39) is always in a compressed state to push the locking block (40) closer to the battery body (2). The elastic force of the third spring (39) is less than that of the second spring (23).

9. The automotive lithium battery production and assembly apparatus according to claim 4, characterized in that, The top and bottom of the end plate (8) are provided with slots (44), and the steel strip body (15) is inserted into the slots (44); the end plate (8), the first sliding seat (4), the second sliding seat (5), the first limiting seat (6), the second limiting seat (7), the first upper sliding seat (12) and the second upper sliding seat (13) are all provided with second sliding grooves (45) for the shell (38) to slide.

10. An assembly method based on the automotive lithium battery production and assembly apparatus according to any one of claims 1 to 9, characterized in that, include: S1. Based on the number of battery bodies (2) of the battery module to be produced, start the fourth electric push rod (43). The fourth electric push rod (43) drives the first sliding seat (4) to move to the preset position, thereby driving the first limiting seat (6) and the first upper sliding seat (12) to move synchronously. S2. Activate the two third electric push rods (42). The output end of the third electric push rod (42) extends and pushes the third lever (28) connected to it to rise. During the rising process, the first upper slide (12) and the second upper slide (13) remain stationary under their own gravity. The locking block (40) of the third lever (28) is squeezed into the housing (38) by the lowest steel strip on the upper steel strip seat (14). When the housing (38) of the third lever (28) abuts against the inner wall of the corresponding first upper slide (12) and second upper slide (13), the locking block (40) is just aligned and inserted into the slot (19) at the end of the steel strip. At this time, the third electric push rod (42) pushes the first upper slide (12) and the second upper slide (13) to move upward through the housing (38) of the third lever (28), providing space for the placement of the battery body (2) and the end plate (8). S3. After placing multiple battery bodies (2) and two end plates (8) on the base (1) to form the battery module to be assembled, start the first electric push rod (31). The output end of the first electric push rod (31) extends. At this time, the telescopic damping rod (30) prevents the first toggle block (26) from sliding upward. The first slider (24) is relatively stationary in the first slide groove (25). Therefore, the first electric push rod (31) pushes the second sliding seat (5) and the rack (37) to move closer to the first sliding seat (4) simultaneously. The rack (37) drives the cylindrical gear to rotate, and then drives the driven bevel gear (34) and the rotating rod (33) to rotate through the active bevel gear (35). The rotating rod (33) drives the side plate (9) to rotate through the second connecting rod (32). When the second sliding seat (5) abuts against one end of the battery module, the side plate (9) rotates exactly 90°. And it abuts against the side of the battery module, making the sides of multiple batteries flush. At this time, the locking block (40) of the first dial block (26) inside the second sliding seat (5) is aligned with and inserted into the dial slot (19) at the uppermost end of the steel strip on the lower steel strip seat (3). S4. After the second sliding seat (5) comes into contact with the battery module, the battery module prevents the second sliding seat (5) from moving further, and continues to start the first electric push rod (31) and simultaneously starts the second electric push rod (41); the first electric push rod (31) pushes the first slider (24) to slide in the first groove (25) toward the battery module, and the first slider (24) drives the first lever (26) to move upward through the first connecting rod (29) and squeezes the telescopic damping rod (30); the second electric push rod (41) drives the second lever (27) to move upward; the first lever (26) and the second lever (27) together drive the uppermost steel strip on the lower steel strip seat (3) to overcome the elastic force of the limiting spring (18) and move upward, and put the steel strip into the slot (44) at the bottom of the two end plates (8); S5. Start the third electric push rod (42). The output end of the third electric push rod (42) shortens, causing the first upper slide (12), the second upper slide (13) and the upper steel belt seat (14) to descend as a whole. When the lower surface of the first upper slide (12) abuts against the upper surface of the first lower slide (4) and the lower surface of the second upper slide (13) abuts against the upper surface of the second lower slide (5), the first upper slide (12) and the second upper slide (13) cannot continue to descend. The third electric push rod (42) continues to retract, and through the third lever (28), it drives the steel belt at the bottom of the upper steel belt seat (14) to overcome the elastic force of the limiting spring (18) and move downward, so that the steel belt is fitted into the slot (44) at the top of the two end plates (8). S6. Restart the third electric push rod (42) to extend its output end, drive the third push block (28) to rise, provide space for taking out the assembled battery module and make the card block (40) insert into the slot (19) of the next steel strip; start the first electric push rod (31) to shorten its output end, drive the second sliding seat (5) and drive assembly to reset. S7. When it is necessary to replace the upper steel belt seat (14), move the two mounting rods (20) outward to disengage the mounting rods (20) from the mounting hole (21), and then pull out the upper steel belt seat (14) and replace it with a new upper steel belt seat (14). S8. When it is necessary to replace the lower steel belt seat (3), extend the third electric push rod (42) to the highest position, and you can directly remove the lower steel belt seat (3) and replace it with a new lower steel belt seat (3).

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