A pole group slotting device and method

Abstract

The present invention provides a device and method for inserting a pole group into a slot, which belongs to the field of battery technology and includes a transfer mechanism, a flip-into-slot mechanism and a pressing mechanism. The transfer mechanism includes a movable frame, a slider is provided at the lower part of the movable frame, and the movable frame includes two parallel first rotating shafts; the flip-into-slot mechanism includes two trays, which can rotate along the axial direction of the first rotating shaft, and a positioning support block and a second rotating shaft are provided at one end of the inner side of the tray close to the movable frame, and the axial direction of the second rotating shaft is the same as that of the first rotating shaft. The positioning support block is connected to the tray by a tension spring and can rotate along the axial direction of the second rotating shaft; the pressing mechanism is provided above the transfer mechanism, and the pressing mechanism includes a pressing frame, which is located between the two first rotating shafts, and a push rod is provided at the upper end of the pressing frame. The pole group inserting device provided by the present invention enables the pole group and the plugging frame to be accurately and quickly assembled into the battery slot, reduces manual intervention, and can meet the needs of large-scale automated production.

Description

Technical Field

[0001] The present invention belongs to the technical field of storage batteries, and more specifically, relates to a device and method for inserting a pole group into a slot. Background Art

[0002] Lead-acid batteries are widely used in various important fields due to their low price, reliable quality, wide capacity range and long service life.

[0003] During the battery production and assembly process, multiple electrode clusters are individually loaded into the individual cells of a battery cell. To ensure the stability of the electrode clusters, a side frame is typically placed between the electrode cluster and the battery cell. Traditionally, the electrode cluster is lifted to the top of the battery cell using lifting equipment, and the side frames are manually placed on both sides of the electrode cluster. Finally, the electrode cluster and side frames are inserted from top to bottom into the individual cells of the battery cell. The side frames and electrode clusters must work together well to ensure accurate insertion. Manual intervention introduces significant uncertainty, making it difficult to meet the needs of large-scale automated production. Summary of the Invention

[0004] The object of the present invention is to provide a battery pack insertion device, which enables the battery pack and the side frame to be accurately and quickly assembled into the battery pack.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a pole group slotting device, comprising:

[0006] A transfer mechanism, the transfer mechanism comprising a mobile frame, a slider being provided at the lower portion of the mobile frame, the mobile frame comprising two parallel first rotating shafts, the two first rotating shafts being symmetrically arranged on both sides above the battery slot;

[0007] A flip-into-slot mechanism, comprising two trays, each of which is disposed on the two first rotating shafts in a one-to-one correspondence and is rotatable along the axial direction of the first rotating shaft. A positioning support block and a second rotating shaft are disposed at one end of the tray near the inner side of the movable frame. The axial direction of the second rotating shaft is the same as that of the first rotating shaft. The positioning support block is connected to the tray via a tension spring and is rotatable along the axial direction of the second rotating shaft.

[0008] The pressing mechanism is arranged above the transfer mechanism. The pressing mechanism includes a pressing frame. The pressing frame is located between the two first rotating shafts. A push rod is provided at the upper end of the pressing frame.

[0009] In one possible implementation, the mobile frame further includes two connecting beams, which are vertically connected to the two ends of the first rotating shafts. The sliders are arranged on both sides of the lower end surfaces of the connecting beams, and the mobile frame slides along the single-grid arrangement direction of the battery slots with the help of the sliders.

[0010] In one possible implementation, the tray includes two first frames arranged in parallel, the middle part of the first frames is rotatably connected to the first rotating shaft, the outer ends of the two first frames away from the transfer mechanism are vertically connected to a connecting rod, the second rotating shaft and the positioning support block are respectively arranged at the inner end of the first frame close to the transfer mechanism, the upper end of the positioning support block is higher than the first frame, the lower end of the positioning support block is rotatably connected to the second rotating shaft, one end of the tension spring is connected to the first frame, and the other end is connected to the positioning support block.

[0011] In one possible implementation, the first frame includes a horizontal rod and an inclined rod, the horizontal rod is vertically connected to the end of the connecting rod, the inclined rod is arranged below the horizontal rod, and the inclined rod is inclined downward from the outer end to the inner end, the middle part of the inclined rod is rotatably set on the first rotating shaft, the second rotating shaft is set on the inner end of the inclined rod, the lower end of the positioning support block is rotatably connected to the inner end of the inclined rod by means of the second rotating shaft, the upper end of the positioning support block is higher than the horizontal rod, and a mounting plate is longitudinally provided in the middle of the lower end surface of the horizontal rod, one end of the tension spring is connected to the mounting plate, and the other end is connected to the positioning support block.

[0012] In one possible implementation, the press-in frame includes a middle frame and pressure strips arranged on both sides of the middle frame. The middle frame is provided with two cross-connecting plates. The two pressure strips are respectively connected to both sides of the two connecting plates. Any of the pressure strips can be pressed on the bus bars on both sides of the pole group at the same time. The push rod is vertically installed at the junction of the two connecting plates.

[0013] The beneficial effect of the electrode group slot insertion device provided by the present invention is that, compared with the prior art, two plugging racks are placed on two trays respectively, and the movable rack drives the two trays to slide to the top of the single cell of the battery slot through the slider at the bottom. The electrode group is transferred to the top of the flip slot insertion mechanism by the gripper, and the gripper drives the electrode group to move downward until it contacts the two plugging racks at the same time. The electrode group continues to move downward, pressing down on the inner sides of the two plugging racks. The plugging racks and the trays rotate inward along the axial direction of the first rotating shaft until the plugging racks are in a vertical state and fit on both sides of the electrode group. The gripper is reset, and the top of the plugging rack is supported below the bus bar of the electrode group. The lower ends of the electrode group and the plugging rack rest on the positioning support block. The push rod drives the press-in frame to move downward, and the press-in frame presses above the busbar of the pole group, pushing the pole group and the plugging frames on both sides of the pole group to move downward. The plugging frames push the positioning support block to overcome the elastic force of the tension spring, and the positioning support block rotates outward along the second rotating shaft. The press-in frame continues to move downward, pressing the pole group and the plugging frames on both sides into the battery slot. Afterwards, the tray rotates outward along the axial direction of the first rotating shaft to a horizontal state. The positioning support block is reset under the elastic force of the tension spring. The push rod drives the press-in frame to reset to the top of the transfer mechanism, and the plugging frames continue to be installed on the tray. The mobile frame drives the two trays to move to the top of the single cell of the next battery slot to be inserted through the slider at the bottom. The pole group insertion device provided by the present invention enables the pole group and the plugging frames to be accurately and quickly assembled into the battery slot, reduces manual intervention, and can meet the needs of large-scale automated production.

[0014] The present invention also provides a method for inserting a group of electrodes into a slot, which uses the above-mentioned group of electrodes into a slot device and includes the following steps:

[0015] S1: Place two side racks horizontally on two trays respectively. The movable rack drives the two trays to slide to the top of the battery slot through the slider at the bottom.

[0016] S2: The pole group is transferred to the top of the flip-into-slot mechanism by the gripper, and the gripper drives the pole group to move downward until it contacts the two plug-side racks at the same time. The pole group continues to move downward, pressing down on the inner sides of the two plug-side racks. The plug-side racks and the tray rotate inward along the axial direction of the first rotating shaft until the plug-side racks are in a vertical state and fit on both sides of the pole group. The gripper is reset, and the top of the plug-side rack is supported under the bus bar of the pole group. The lower ends of the pole group and the plug-side rack rest on the positioning support block.

[0017] S3: The push rod drives the press-in frame to move downward, and the press-in frame is pressed on the bus bar of the pole group, pushing the pole group and the plugging frames on both sides of the pole group to move downward. The plugging frame pushes the positioning support block to overcome the elastic force of the tension spring, and the positioning support block rotates outward along the second rotating axis. The press-in frame continues to move downward, pressing the pole group and the plugging frames on both sides into the battery slot.

[0018] In one possible implementation, after step S3, the tray rotates outward along the axial direction of the first rotating shaft to a horizontal state, the positioning support block is reset under the elastic force of the tension spring, the push rod drives the pressing rack to reset to the top of the transfer mechanism, and the plugging rack continues to be installed on the tray. The moving rack drives the two trays to move to the top of the single cell of the next battery slot to be inserted through the slider at the bottom.

[0019] The beneficial effect of the pole group slot insertion method provided by the present invention is that: compared with the existing technology, the use of the above-mentioned pole group slot insertion device enables the pole group and the side frame to be accurately and quickly assembled into the battery slot, reducing manual intervention and meeting the needs of large-scale automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a pole group slotting device provided by an embodiment of the present invention;

[0022] Figure 2 This is an assembly diagram of a pole group in a battery slot provided by an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. First rotating shaft; 2. Connecting beam; 3. Slider; 4. Connecting rod; 5. Horizontal rod; 6. Tilt rod; 7. Mounting plate; 8. Second rotating shaft; 9. Positioning support block; 10. Push rod; 11. Middle frame; 12. Connecting plate; 13. Pressure strip; 14. Tension spring; 15. Side frame; 16. Battery slot; 17. Single cell; 18. Pole group. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] See also Figure 1 and Figure 2 The present invention provides a device for inserting a group of electrodes into a slot, which includes a transfer mechanism, a flipping mechanism, and a pressing mechanism.

[0027] The transfer mechanism includes a moving frame, a slider 3 is provided at the lower part of the moving frame, and the moving frame includes two parallel first rotating shafts 1, and the two first rotating shafts 1 are symmetrically arranged on both sides above the battery slot 16; the flipping into the slot mechanism includes two trays, and the two trays are respectively arranged on the two first rotating shafts 1 in a one-to-one manner, and can rotate along the axial direction of the first rotating shaft 1, and a positioning support block 9 and a second rotating shaft 8 are provided at the inner end of the tray close to the moving frame, and the axial direction of the second rotating shaft 8 is the same as the axial direction of the first rotating shaft 1, and the positioning support block 9 is connected to the tray by a tension spring 14 and can rotate along the axial direction of the second rotating shaft 8; the pressing mechanism is provided above the transfer mechanism, and the pressing mechanism includes a pressing frame, and the pressing frame is located between the two first rotating shafts 1, and a push rod 10 is provided at the upper end of the pressing frame.

[0028] Compared with the prior art, the present invention provides a device for inserting a pole group into a slot. Two side frames 15 are placed on two trays respectively. The movable frame drives the two trays to slide to the top of the single cell 17 of the battery slot 16 through the slider 3 at the bottom. The pole group 18 is transferred to the top of the flip-into-slot mechanism by the gripper. The gripper drives the pole group 18 to move downward until it contacts the two side frames 15 at the same time. The pole group 18 continues to move downward, pressing down on the inner sides of the two side frames 15. The side frames 15 and the trays rotate inward along the axial direction of the first rotating shaft 1 until the side frames 15 are in a vertical state and fit on both sides of the pole group 18. The gripper is reset, and the top of the side frame 15 is supported below the bus bar of the pole group 18. The lower ends of the pole group 18 and the side frame 15 rest against the positioning support block 9. The push rod 10 drives the press-in frame to move downward, and the press-in frame presses above the busbar of the pole group 18, pushing the pole group 18 and the plugging frames 15 on both sides of the pole group 18 downward. The plugging frames 15 push the positioning support block 9 to overcome the elastic force of the tension spring 14. The positioning support block 9 rotates outward along the second rotating shaft 8, and the press-in frame continues to move downward, pressing the pole group 18 and the plugging frames 15 on both sides into the battery slot 16. Afterwards, the tray rotates outward along the axial direction of the first rotating shaft 1 to a horizontal state. The positioning support block 9 is reset under the elastic force of the tension spring 14. The push rod 10 drives the press-in frame to reset to the top of the transfer mechanism, and the plugging frames 15 continue to be installed on the tray. The moving frame drives the two trays to move to the top of the single cell 17 of the next battery slot 16 to be inserted through the slider 3 at the bottom. The present invention provides a pole group slot insertion device, which enables the pole group 18 and the plugging frame 15 to be accurately and quickly assembled into the battery slot 16, reduces manual intervention, and can meet the needs of large-scale automated production.

[0029] See also Figure 1 The mobile frame also includes two connecting beams 2, which are vertically connected to the two ends of the two first rotating shafts 1. The sliders 3 are arranged on both sides of the lower end surface of the connecting beams 2. The mobile frame slides along the arrangement direction of the single grid 17 of the battery slot 16 with the help of the sliders 3.

[0030] Specifically, the two connecting beams 2 and the two first rotating shafts 1 form a rectangular frame, and sliders 3 are respectively provided on both sides of the lower end surface of each connecting beam 2. The sliders 3 slide in conjunction with the corresponding slide rails, thereby driving the mobile frame to move to the top of the battery slot 16, that is, the top of the single cell 17 where the pole group 18 is to be installed.

[0031] The battery slots 16 are typically composed of 2*3 cells 17. Therefore, the slide rails can be arranged in a crisscross structure, and the sliders 3 can be used to cooperate with the slide rails to achieve sliding adjustment in multiple directions. In addition, the length direction of the slide rails is the arrangement direction of the multiple cells 17 in a single row. While the tray rotates with the first rotating shaft 1, it can also slide along the axial direction of the first rotating shaft 1. The axial direction of the first rotating shaft 1 is the arrangement direction of the adjacent rows of cells 17. After the assembly of the current row of cells 17 is completed, the two trays can be slid simultaneously to the position of the adjacent row of cells 17 to achieve movement in the matrix direction, thereby meeting the requirements of the electrode groups 18 of the multiple cells 17 arranged in the matrix and slotting them.

[0032] Reference Figure 1 The pallet includes two first frames and a connecting rod 4. The two first frames are arranged in parallel. The connecting rod 4 is connected to one end of the two frames away from the transfer mechanism, thereby forming a U-shaped structure.

[0033] Specifically, the first frame includes a horizontal rod 5, an inclined rod 6 and a mounting plate 7. The inclined rod 6 is located below the horizontal rod 5. The outer end of the inclined rod 6 is connected to the horizontal rod 5. The inclined rod 6 is inclined downward from the outer end to the inner side. The mounting plate 7 is installed between the horizontal rod 5 and the inclined rod 6. The first frame forms a triangular frame.

[0034] The two horizontal rods 5 and the connecting rod 4 constitute the aforementioned U-shaped structure, and the inclined rods 6 are connected to the lower side of the horizontal rods 5 to form triangular frames on both sides, thereby forming a stable pallet structure.

[0035] A second shaft 8 is located at the inner end of the tilting rod 6 , with the axial direction of the second shaft 8 being aligned with the axial direction of the first shaft 1 . The lower end of the positioning support block 9 is rotatably connected to the second shaft 8 . A tension spring 14 is connected at one end to the mounting plate 7 and at the other end to the positioning support block 9 . The tension spring 14 constantly applies tension to the positioning support block 9 , keeping it against the inner end of the horizontal rod 5 . At this point, the upper portion of the positioning support block 9 protrudes above the horizontal rod 5 . When the horizontal rod 5 is rotated to a vertical position, the portion of the positioning support block 9 that protrudes above the horizontal rod 5 abuts against the lower end of the plugging bracket 15 , securing the bracket 15 in place. Only when external force is applied again can the tension of the tension spring 14 be overcome, allowing the plugging bracket 15 to continue its downward movement and be inserted into the battery slot 16 . Once the tray is released from the battery slot 16 , the positioning support block 9 automatically returns to its original position under the action of the tension spring 14 .

[0036] Reference Figure 1 The press-in frame includes a middle frame 11, which is a rectangular frame. On both sides of the middle frame 11, there are respectively provided with pressure strips 13 in parallel. Two cross-connecting plates 12 are provided on the middle frame 11, and the two pressure strips 13 are respectively connected to the two sides of the two connecting plates 12. The lengths of the two pressure strips 13 are the same, and the length of the pressure strips 13 is greater than the length of the busbars on both sides of the pole group 18. When the press-in frame is used to press on the pole group 18, the two pressure strips are respectively pressed on both sides of the busbars on both sides of the pole group 18, and at the same time, the pole group 18 is pushed downward through the two busbars, and the force is evenly distributed, so that the pole group 18 can move smoothly downward to be inserted into the battery slot 16. Among them, the push rod 10 is vertically welded at the junction of the two connecting plates 12, and provides uniform thrust to the pole group 18 through the press-in frame.

[0037] Based on the above-mentioned electrode group slotting device, the present invention also provides a electrode group slotting method, comprising the following steps:

[0038] S1: Place two side racks 15 horizontally on two trays respectively. The movable rack drives the two trays to slide to the top of the single cell 17 of the battery slot 16 through the slider 3 at the bottom.

[0039] S2: The pole group 18 is transferred to the top of the flip-into-slot mechanism by the gripper, and the gripper drives the pole group 18 to move downward until it contacts the two plugging side frames 15 at the same time. The pole group 18 continues to move downward, pressing down on the inner sides of the two plugging side frames 15. The plugging side frames 15 and the tray rotate inward along the axial direction of the first rotating shaft 1 until the plugging side frames 15 are in a vertical state and fit on both sides of the pole group 18. The gripper is reset, and the top of the plugging side frame 15 is supported under the bus bar of the pole group 18. The lower ends of the pole group 18 and the plugging side frame 15 abut against the positioning support block 9.

[0040] S3: The push rod 10 drives the press-in frame to move downward, and the press-in frame is pressed on the bus of the pole group 18, pushing the pole group 18 and the plugging frames 15 on both sides of the pole group 18 to move downward. The plugging frames 15 push the positioning support block 9 to overcome the elastic force of the tension spring 14, and the positioning support block 9 rotates outward along the second rotating shaft 8. The press-in frame continues to move downward, pressing the pole group 18 and the plugging frames 15 on both sides into the battery slot 16.

[0041] After step S3, the tray rotates outward along the axial direction of the first rotating shaft 1 to a horizontal state, the positioning support block 9 is reset under the elastic force of the tension spring 14, and the push rod 10 drives the pressing rack to reset to the top of the transfer mechanism, and the plugging rack 15 continues to be installed on the tray. The moving rack drives the two trays to move to the top of the single cell 17 of the next battery slot 16 to be inserted into the slot through the lower slider 3.

[0042] When the pole group 18 has completed the slotting of the single cells 17 in the same row and needs to switch to the next row of single cells 17, the two trays can simultaneously slide along the axial direction of the first rotating shaft 1 to the top of the next row of single cells 17. In order to ensure that they slide into place, positioning or position sensors can be adaptively set.

[0043] The above process can be completed by the automatic control system of the Jiqun 18 cast welding line, thereby greatly improving production efficiency and reducing manual labor intensity.

[0044] In addition, corner supports are provided at the four inner corners of each cell 17 of the battery slot 16. These supports are integrally formed with the battery slot 16 and are made of PP. Corresponding slots are also provided on either side of the outer wall of the side frame 15, which is injection-molded in a single step using highly elastic PP or ABS. Once the electrode group 18 and side frame 15 are inserted into the slot, the four corner supports within the battery slot 16 rest squarely within the slots on either side of the side frame 15's outer wall. This creates an elastic squeeze between the side frame 15 and the electrode group 18, ensuring a tight fit beneath the electrode group 18 while preventing deformation of the battery slot 16 walls.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pole group slotting device, characterized in that: include: A transfer mechanism, the transfer mechanism comprising a mobile frame, a slider (3) being provided at the lower portion of the mobile frame, the mobile frame comprising two first rotating shafts (1) arranged in parallel, the two first rotating shafts (1) being symmetrically arranged on both sides above the battery slot (16); A flip-into-slot mechanism, the flip-into-slot mechanism comprises two trays, the two trays are respectively arranged on the two first rotating shafts (1) in a one-to-one correspondence and can rotate along the axial direction of the first rotating shaft (1), a positioning support block (9) and a second rotating shaft (8) are arranged at one end of the inner side of the tray close to the movable frame, the axial direction of the second rotating shaft (8) is the same as the axial direction of the first rotating shaft (1), the positioning support block (9) is connected to the tray via a tension spring (14) and can rotate along the axial direction of the second rotating shaft (8); The pressing mechanism is arranged above the transfer mechanism, and the pressing mechanism comprises a pressing frame, which is located between the two first rotating shafts (1), and a push rod (10) is provided at the upper end of the pressing frame.

2. The electrode group slotting device according to claim 1, characterized in that: The mobile frame further comprises two connecting beams (2), the two connecting beams (2) being vertically connected to the two ends of the first rotating shafts (1), the sliders (3) being arranged on both sides of the lower end surfaces of the connecting beams (2), and the mobile frame sliding along the arrangement direction of the single cells (17) of the battery slots (16) with the aid of the sliders (3).

3. The electrode group slotting device according to claim 1, characterized in that: The tray comprises two first frames arranged in parallel, the middle part of the first frames being rotatably connected to the first rotating shaft (1), the outer ends of the two first frames away from the transfer mechanism being vertically connected to a connecting rod (4), the second rotating shaft (8) and the positioning support block (9) being respectively arranged at the inner ends of the first frames close to the transfer mechanism, the upper end of the positioning support block (9) being higher than the first frames, the lower end of the positioning support block (9) being rotatably connected to the second rotating shaft (8), one end of the tension spring (14) being connected to the first frame, and the other end being connected to the positioning support block (9).

4. The electrode group slotting device according to claim 3, characterized in that: The first frame includes a horizontal rod (5) and an inclined rod (6), the horizontal rod (5) is vertically connected to the end of the connecting rod (4), the inclined rod (6) is arranged below the horizontal rod (5), and the inclined rod (6) is inclined downward from the outer end to the inner end, the middle part of the inclined rod (6) is rotatably arranged on the first rotating shaft (1), the second rotating shaft (8) is arranged at the inner end of the inclined rod (6), the lower end of the positioning support block (9) is rotatably connected to the inner end of the inclined rod (6) by means of the second rotating shaft (8), the upper end of the positioning support block (9) is higher than the horizontal rod (5), and a mounting plate (7) is longitudinally provided in the middle part of the lower end surface of the horizontal rod (5), one end of the tension spring (14) is connected to the mounting plate (7), and the other end is connected to the positioning support block (9).

5. The electrode group slotting device according to claim 1, characterized in that: The press-in frame comprises a middle frame (11) and pressure strips (13) arranged on both sides of the middle frame (11); the middle frame (11) is provided with two cross-connecting plates (12); the two pressure strips (13) are respectively connected to both sides of the two connecting plates (12); any one of the pressure strips (13) can be pressed on the busbars on both sides of the pole group (18) at the same time; the push rod (10) is vertically installed at the junction of the two connecting plates (12).

6. A method for inserting a pole group into a slot, characterized in that: The pole group slotting device according to any one of claims 1 to 5 is used, comprising the following steps: S1: Two side-plug racks (15) are placed horizontally on two trays respectively, and the movable rack drives the two trays to slide to the top of the single grid (17) of the battery slot (16) through the slider (3) at the bottom; S2: The pole group (18) is transferred to the top of the flip-in slot mechanism by the gripper, and the gripper drives the pole group (18) to move downward until it contacts the two plugging racks (15) at the same time. The pole group (18) continues to move downward, pressing the inner sides of the two plugging racks (15) downward. The plugging racks (15) and the tray rotate inward along the axial direction of the first rotating shaft (1) until the plugging racks (15) are in a vertical state and fit on both sides of the pole group (18). The gripper is reset, and the top of the plugging rack (15) is supported below the busbar of the pole group (18). The lower ends of the pole group (18) and the plugging rack (15) are against the positioning support block (9); S3: The push rod (10) drives the press-in frame to move downward, and the press-in frame is pressed on the bus bar of the pole group (18), pushing the pole group (18) and the plugging frames (15) on both sides of the pole group (18) to move downward. The plugging frames (15) push the positioning support block (9) to overcome the elastic force of the tension spring (14), and the positioning support block (9) rotates outward along the second rotating shaft (8). The press-in frame continues to move downward, pressing the pole group (18) and the plugging frames (15) on both sides into the battery slot (16).

7. A method for inserting a pole group into a slot according to claim 6, characterized in that: After step S3, the tray rotates outward along the axial direction of the first rotating shaft (1) to a horizontal state, the positioning support block (9) is reset under the elastic force of the tension spring (14), the push rod (10) drives the pressing rack to reset to the top of the transfer mechanism, and the plugging rack (15) is continuously installed on the tray. The moving rack drives the two trays to move to the top of the single cell (17) of the next battery slot (16) to be inserted through the slider (3) at the bottom.

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