Flipping fixture, flipping device and battery cell transfer production line

Abstract

The present invention discloses a flipping jig, a flipping device and a battery cell transfer production line, and relates to the technical field of battery cell transfer production. The flipping jig includes a positioning frame, and the positioning frame is fixedly installed on the bottom surface of the top plate; the bottom surface of the positioning frame is provided with a flipping frame, and the upper end of the flipping frame is rotatably connected to the bottom surface of the positioning frame through a bearing; and further includes: the flipping jig includes a telescopic cylinder, and the telescopic cylinder is fixedly installed on the front and rear sides of the upper interior of the flipping frame. The flipping jig, the flipping device and the battery cell transfer production line, through the flipping device and the flipping jig installed above the bottom frame of the production line, grasps and flips battery cells of different specifications, prevents the battery cells from being offset and misplaced during the flipping process to affect subsequent transfer, and at the same time, the flipping device transports defective battery cells to the crawler conveyor, and cooperates with the battery cell blocking bracket to limit the position, so as to facilitate subsequent manual collection and transfer.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell transfer production, and in particular to a turning fixture, a turning device and a battery cell transfer production line thereof. Background Art

[0002] A battery cell is an electrochemical device encapsulated in a metal shell, which is combined with a positive electrode and a negative electrode to form a power supply battery for storing and releasing electrical energy. The battery cell is composed of a positive electrode, a negative electrode, a separator and an electrolyte, and converts chemical energy into electrical energy through chemical reactions. During the production and processing of battery cells, it is necessary to test the integrity and charge and discharge performance, and then use a transfer mechanism and a flipping mechanism to move and transport them between various production lines, and discharge defective products (lack of integrity, abnormal charge and discharge) for recycling and rework.

[0003] The invention with publication number CN111668504B discloses a flip jig mechanism and a battery. The flip jig mechanism can realize the battery cell shelling operation on the jig base by setting a jig base and a flip drive assembly, thereby replacing the method of using a robot to rotate the battery cell into the battery shell in the prior art, making the overall structure more compact and able to adapt to assembly line production and processing operations, thereby improving the efficiency and quality of the overall production and processing.

[0004] The invention with publication number CN112331870A discloses a battery cell flipping mechanism for lithium battery production. The flipping mechanism is provided, and the problem of the collapse of the battery cell ears due to gravity in the first circle of the battery cell diaphragm is solved through the 180° flipping mechanism, thereby improving the battery cell yield. At the same time, the flipping platform adopts an automatic rebound low-resistance roller structure design, which prevents friction and scratches on the surface of the battery cell when the battery cell passes through the flipping platform.

[0005] However, the above-mentioned flipping jig and flipping device for battery cells still have the following problems during actual use: although the battery cells are flipped by a flippable clamping jig, there are large differences in the specifications of existing battery cells. Therefore, during the clamping and flipping process, the battery cells are affected by the weight of the battery cells. After the flipping jig clamps the battery cells, the battery cells are easily shifted and misaligned, and then cannot be successfully placed in the subsequent conveying mechanism after transfer, causing the entire production line to stagnate, affecting the efficiency of transfer and transportation.

[0006] Therefore, we proposed a flipping fixture, a flipping device and a cell transfer production line to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a flipping jig, a flipping device and a battery cell transfer production line thereof, in order to solve the problem that the battery cells are flipped by a flippable clamping jig, but the specifications of the existing battery cells vary greatly. Therefore, during the clamping and flipping process, the battery cells are easily shifted and misaligned after the flipping jig clamps the battery cells, and then cannot be successfully placed in the subsequent conveying mechanism after transfer, causing the entire production line to stagnate, affecting the transfer and transportation efficiency.

[0008] To achieve the above object, the present invention provides the following technical solution: a flipping fixture includes a positioning frame, and the positioning frame is fixedly installed on the bottom surface of the top plate;

[0009] The bottom surface of the positioning frame is provided with a flip frame, and the upper end of the flip frame is rotatably connected to the bottom surface of the positioning frame through a bearing;

[0010] It also includes: the flipping fixture includes a telescopic cylinder, and the telescopic cylinder is fixedly installed on the front and rear sides of the upper interior of the flipping frame, and the front and rear sides of the lower part of the flipping frame are slidably connected to the top of the clamping side plate, and the inner sides of the top of the clamping side plates on the front and rear sides are fixedly connected to the end of the driving shaft of the telescopic cylinder.

[0011] Preferably, the flipping jig includes a resistance slide, and the outer end of the resistance slide slide slides through the outside of the clamping side plate, and the resistance slide and the clamping side plate are connected to each other through a return spring, and the front and rear sides of the symmetrically arranged clamping side plates are elastically connected to the inner end of the clamping slider.

[0012] Preferably, the outer end of the resistance slide included in the flipping jig is fixedly connected to the inner end of the traction steel cable, and the outer ends of the symmetrically arranged traction steel cables are fixedly connected to the inner sides of the clamping sliders, and after the resistance slides are squeezed by the battery cells to approach the clamping side plates, the clamping sliders that are not limited by the traction steel cables approach the outer walls of the clamping side plates.

[0013] The flipping device includes a flipping fixture and a bearing bracket, and the bearing bracket is fixedly installed on the top surface of the production line chassis in an inverted "U"-shaped structure, and guide rails are fixedly arranged on both the front and rear sides of the top surface of the bearing bracket.

[0014] Preferably, the flipping device includes a distance adjusting platform, and the distance adjusting platform is arranged on the left and right sides of the top surface of the supporting bracket, and the bottom surface of the symmetrically arranged distance adjusting platform is slidably connected to the top end of the guide rail in an interlocking manner, so as to prevent the distance adjusting platform from being offset and misaligned during movement through the guide rail.

[0015] Preferably, the driving gear is rotatably arranged behind the bottom surface of the distance adjustment platform through a bearing, and the flipping device includes a driving rack, and the driving rack is fixedly installed behind the bottom surface of the supporting bracket, and the driving gear and the driving rack are meshed and connected with each other.

[0016] Preferably, the flipping device includes a lifting sleeve, and the internal thread of the lifting sleeve is connected to the outer wall of the lifting threaded rod, and the lifting sleeve is rotatably arranged at the center position of the top surface of the distance adjusting platform through a bearing, and the bottom end of the lifting threaded rod is penetrated and arranged on the outside of the bottom surface of the distance adjusting platform, and at the same time, the interior of the distance adjusting platform is equiangularly slidably connected to the middle part of the lifting slide rod.

[0017] Preferably, the flipping device includes a flipping platform, and the top surface of the flipping platform is fixedly connected to the bottom end of the lifting slide rod set at an equal angle, and the top surface of the flipping platform is fixedly connected to the bottom end of the lifting threaded rod, and the lifting slide rod set at an equal angle is provided with a contact top plate at the top end of the lifting threaded rod.

[0018] The battery cell transfer production line includes a turning device and a production line chassis. The left and right sides of the production line chassis are interconnected with a battery cell loading mechanism and a battery cell unloading mechanism to realize the production process of battery cell loading and unloading. The top front and rear sides of the production line chassis are provided with defective product conveying mechanisms, and the defective product conveying mechanism includes a crawler conveyor part. Defective battery cells are conveyed by the crawler conveyor part, and the top surface of the crawler conveyor part is provided with a battery cell blocking bracket to prevent the defective battery cells from falling.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the flipping fixture, the flipping device and the battery cell transfer production line thereof, through the flipping device and the flipping fixture installed above the production line chassis, grasp and flip the battery cells of different specifications, so as to prevent the battery cells from being offset and dislocated during the flipping process to affect the subsequent transfer, and at the same time, the flipping device transports the defective battery cells to the crawler conveyor part, and cooperates with the battery cell blocking bracket to limit the position, so as to facilitate the subsequent manual collection and transfer. The specific contents are as follows:

[0020] 1. The supporting bracket is mounted on the top surface of the production line chassis. The motor drives the driving gear to mesh and rotate with the driving rack above the pitch-adjusting platform. The driving rack is fixedly installed above the supporting bracket to drive the pitch-adjusting platforms on the left and right sides to move, so as to adapt to the battery cells loaded in different ranges.

[0021] The motor of the distance adjusting platform drives the lifting sleeve to be threadedly connected with the lifting threaded rod, so that the lifting threaded rod and the positioning frame and the flipping fixture at the bottom thereof move upward, and the lifting slide bar runs through the interior of the distance adjusting platform, thereby ensuring the stability of the positioning frame and the flipping fixture at the bottom thereof during the lifting process, and preventing the displacement of the flipping device from affecting the subsequent transfer and flipping work of the battery cell.

[0022] 2. The telescopic cylinder drives the clamping side plate to move closer to the battery cell, and the contact slide plate contacts the outer wall of the battery cell and continues to move, stretching the traction cable fixed at the outer end, so that the traction cable drives the clamping slider fixed at the outer end to move closer to the outer wall of the clamping side plate synchronously, and then the clamping slider moves and clamps the outer wall of the battery cell to prevent the battery cell from deflecting and displacing during subsequent flipping.

[0023] Furthermore, the motor between the flipping platform and the positioning frame engages the left end of the flipping frame below the positioning frame through a sprocket mechanism so as to drive the flipping frame to rotate inside the positioning frame, so that the clamping side plate arranged inside the flipping frame drives the clamped battery cell to flip for subsequent placement.

[0024] 3. The flipping device and the flipping fixture clamp the defective battery cells and move them to the defective conveying mechanism, so that the crawler conveyor part included in the defective conveying mechanism drives the defective battery cells to move and convey them outward. At the same time, the battery cell blocking bracket arranged above the crawler conveyor part prevents the battery cells from falling after moving, so as to facilitate subsequent manual collection and transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the chassis of the production line of the present invention;

[0027] Figure 3 It is a schematic diagram of the installation structure of the underframe and crawler conveyor of the production line of the present invention;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the crawler conveyor of the present invention;

[0029] Figure 5 It is a schematic diagram of the explosion of the crawler conveyor and the battery cell arresting bracket of the present invention;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the turning device of the present invention;

[0031] Figure 7 This is a schematic diagram of the installation structure of the distance adjustment platform and the turning platform of the present invention;

[0032] Figure 8 This is a schematic diagram of the connection structure between the driving gear and the driving rack of the present invention;

[0033] Fig. 9 This is a schematic diagram of the three-dimensional structure of the distance adjustment platform of the present invention;

[0034] Fig.10 This is a schematic diagram of the three-dimensional structure of the flip fixture of the present invention;

[0035] Fig.11 For the present invention Fig.10 The enlarged structural diagram at A in the middle;

[0036] Fig.12 It is a schematic diagram of the distribution structure of the interference slide plate and the clamping slider of the present invention.

[0037] In the figure: 1. Production line chassis; 2. Crawler conveyor; 3. Battery cell blocking bracket; 4. Load-bearing bracket; 5. Guide slide rail; 6. Distance adjustment platform; 7. Driving gear; 8. Driving rack; 9. Lifting sleeve; 901. Lifting threaded rod; 902. Lifting slide bar; 10. Turning platform; 11. Contact top plate; 12. Positioning frame; 13. Turning frame; 14. Telescopic cylinder; 15. Clamping side plate; 16. Contact slide plate; 17. Reset spring; 18. Clamping slider; 19. Traction cable. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 12 , the present invention provides the following technical solutions:

[0040] Embodiment 1: In order to solve the problems existing in the existing battery cell flipping jig, flipping device and transfer production line, this embodiment adopts the following technical scheme, a flipping jig, a flipping device and a battery cell transfer production line, including a production line chassis 1, and the left and right sides of the production line chassis 1 are interconnected with the battery cell loading mechanism and the battery cell unloading mechanism to realize the production process of battery cell loading and unloading; the middle part of the top surface of the production line chassis 1 includes a flipping device, and the flipping device includes a bearing bracket 4, and the bearing bracket 4 is an inverted "U"-shaped structure fixedly installed on the top surface of the production line chassis 1, and guide slide rails 5 are fixedly provided on both the front and rear sides of the top surface of the bearing bracket 4.

[0041] The flipping device includes a distance-adjusting platform 6, and the distance-adjusting platform 6 is arranged on the left and right sides of the top surface of the supporting bracket 4, and the bottom surface of the symmetrically arranged distance-adjusting platform 6 is slidably connected to the top end of the guide rail 5 in an interlocking manner, so as to prevent the distance-adjusting platform 6 from being offset and misplaced during movement through the guide rail 5; the flipping device includes a driving gear 7, and the driving gear 7 is rotatably arranged at the rear of the bottom surface of the distance-adjusting platform 6 through a bearing, and the flipping device includes a driving rack 8, and the driving rack 8 is fixedly installed at the rear of the bottom surface of the supporting bracket 4, and the driving gear 7 and the driving rack 8 are meshed and connected with each other.

[0042] like Figure 8-Figure 9 As shown, when it is necessary to adjust the working range of the flipping device according to the battery cells above the production line chassis 1, the supporting bracket 4 included in the flipping device is mounted on the top surface of the production line chassis 1, and then the motor installed above the distance adjusting platform 6 drives the driving gear 7 installed on the bottom bearing to rotate, and the driving rack 8 meshing with the driving gear 7 is fixedly installed above the supporting bracket 4, so as to drive the distance adjusting platforms 6 on the left and right sides to move, so as to adapt to the battery cells loaded in different ranges.

[0043] The flipping device includes a lifting sleeve 9, and the internal thread of the lifting sleeve 9 is connected to the outer wall of the lifting threaded rod 901, and the lifting sleeve 9 is rotatably arranged at the center position of the top surface of the distance adjusting platform 6 through a bearing, and the bottom end of the lifting threaded rod 901 is penetrated and arranged on the outside of the bottom surface of the distance adjusting platform 6, and at the same time, the inside of the distance adjusting platform 6 is slidably connected to the middle part of the lifting slide 902 at an equal angle; the flipping device includes a flipping platform 10, and the top surface of the flipping platform 10 is fixedly connected to the bottom end of the lifting slide 902 set at an equal angle, and the top surface of the flipping platform 10 is fixedly connected to the bottom end of the lifting threaded rod 901, and the lifting slide 902 set at an equal angle is provided with a contact top plate 11 at the top of the lifting threaded rod 901.

[0044] like Figure 8-Figure 10 As shown, when it is necessary to adjust the working height of the positioning frame 12 and the flipping fixture at the bottom thereof, the motor above the distance adjusting platform 6 drives the lifting sleeve 9 to rotate, and the bottom end of the lifting threaded rod 901 threadedly connected to the inside of the lifting sleeve 9 is fixedly connected to the top surface of the positioning frame 12, and then the lifting sleeve 9 drives the lifting threaded rod 901 and the positioning frame 12 and the flipping fixture at the bottom thereof to move upward, and in the process of rising, the lifting slide bar 902 fixedly installed on the top end of the positioning frame 12 passes through the inside of the distance adjusting platform 6, and its top end is synchronously fixedly set with the lifting threaded rod 901 on the bottom surface of the abutment top plate 11, thereby ensuring the stability of the positioning frame 12 and the flipping fixture at the bottom thereof during the lifting process, and preventing the displacement of the flipping device from affecting the subsequent transfer and flipping work of the battery cell.

[0045] Embodiment 2: In order to solve the problems existing in the existing battery cell flipping jig, flipping device and transfer production line, this embodiment adopts the following technical scheme: a flipping jig is included below the flipping device, and the flipping jig includes a positioning frame 12, and the positioning frame 12 is fixedly installed on the bottom surface of the top plate 11, and a flipping frame 13 is arranged on the bottom surface of the positioning frame 12, and the upper end of the flipping frame 13 is rotatably connected to the bottom surface of the positioning frame 12 through a bearing; the flipping jig includes a telescopic cylinder 14, and the telescopic cylinder 14 is fixedly installed on the front and rear sides of the upper interior of the flipping frame 13, and the front and rear sides of the lower side of the flipping frame 13 are slidably connected to the top end of the clamping side plate 15, and the inner sides of the top ends of the clamping side plates 15 on the front and rear sides are fixedly connected to the end of the driving shaft of the telescopic cylinder 14.

[0046] The flipping jig includes a resisting slide 16, and the outer end of the resisting slide 16 slides through the outside of the clamping side plate 15, and the resisting slide 16 and the clamping side plate 15 are connected to each other through a reset spring 17, and the front and rear sides of the symmetrically arranged clamping side plates 15 are elastically connected to the inner end of the clamping slider 18; the outer end of the resisting slide 16 included in the flipping jig is fixedly connected to the inner end of the traction steel cable 19, and the outer end of the symmetrically arranged traction steel cable 19 is fixedly connected to the inner side of the clamping slider 18, and after the battery cell squeezes the resisting slide 16 close to the clamping side plate 15, the clamping slider 18 that is not limited by the traction steel cable 19 approaches the outer wall of the clamping side plate 15, thereby clamping and positioning the battery cell.

[0047] like Figure 10-11 As shown, after the flipping device drives the flipping fixture to adjust its left-right direction and up-down distance, it is necessary to adjust the spacing according to the specifications of the battery cell through the clamping side plates 15, and the telescopic cylinders 14 fixedly installed on the front and rear sides of the upper interior of the flipping frame 13 work so that the telescopic rod ends of the telescopic cylinders 14 drive the fixedly connected clamping side plates 15 to move and expand outward, and then adjust to a suitable spacing to adapt to the clamping and positioning work of battery cells of different specifications.

[0048] like Fig.12As shown, when the clamping side plate 15 is clamping the battery cell, the clamping side plate 15 moves to the front and rear sides of the battery cell, and then the telescopic cylinder 14 drives the clamping side plates 15 on the front and rear sides to move closer to the battery cell. In the process of the movement of the clamping side plate 15, the inner end of the contact slide plate 16 connected by the return spring 17 first contacts the outer wall of the battery cell, and the static battery cell squeezes the contact slide plate 16 to gradually approach the inner wall of the clamping side plate 15, so that the contact slide plate 16 stretches the traction cable 19 fixedly connected at the outer end, and the inner end of the traction cable 19 is stretched and drives its outer end to move, so that the traction cable 19 drives the clamping slider 18 fixedly connected at the outer end to move synchronously to the outer wall of the clamping side plate 15, and then the clamping slider 18 moves and clamps to the outer wall of the battery cell to prevent the battery cell from deflecting and displacing during subsequent flipping.

[0049] like Fig.10 As shown, the motor installed between the flipping platform 10 and the positioning frame 12 is working, and its left end output shaft engages the left end of the flipping frame 13 below the positioning frame 12 through a sprocket mechanism, so that the flipping frame 13 is driven to rotate inside the positioning frame 12 through the motor and the sprocket mechanism, so that the clamping side plate 15 arranged inside the flipping frame 13 drives the clamped battery cell to flip.

[0050] Embodiment 3: In order to solve the problems existing in the existing battery cell flipping jigs, flipping devices and transfer production lines, this embodiment adopts the following technical scheme: defective product conveying mechanisms are provided on both the front and rear sides of the top face of the production line chassis 1, and the defective product conveying mechanism includes a crawler conveyor part 2, which conveys defective battery cells through the crawler conveyor part 2 so as to be manually picked up and recycled; battery cell blocking brackets 3 are fixedly provided on the top surfaces of the symmetrically arranged crawler conveyor parts 2 to prevent defective battery cells from falling after transfer.

[0051] like Figure 3-Figure 5 As shown, after defective battery cells (lack of integrity, abnormal charging and discharging) are detected on the production line, the defective battery cells are clamped by the flipping device and the flipping fixture and moved to the defective conveying mechanism, so that the crawler conveyor part 2 included in the defective conveying mechanism drives the defective battery cells to move and convey them outward. At the same time, the battery cell blocking bracket 3 arranged above the crawler conveyor part 2 prevents the battery cells from falling after moving, so as to facilitate subsequent manual collection and transfer.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A turning jig, comprising a positioning frame (12), wherein the positioning frame (12) is fixedly mounted on the bottom surface of the contact top plate (11); The bottom surface of the positioning frame (12) is provided with a flip frame (13), and the upper end of the flip frame (13) is rotatably connected to the bottom surface of the positioning frame (12) via a bearing; It is characterized in that Also includes: The turning fixture comprises a telescopic cylinder (14), and the telescopic cylinder (14) is fixedly mounted on the front and rear sides of the upper interior of the turning frame (13), and the front and rear sides of the lower interior of the turning frame (13) are slidably connected to the top of the clamping side plates (15), and the inner sides of the tops of the clamping side plates (15) on the front and rear sides are fixedly connected to the end of the driving shaft of the telescopic cylinder (14); The flipping fixture comprises a resisting slide plate (16), and the outer end of the resisting slide plate (16) slides through the outside of the clamping side plate (15), and the resisting slide plate (16) and the clamping side plate (15) are connected to each other via a return spring (17), and the front and rear sides of the symmetrically arranged clamping side plate (15) are elastically connected to the inner end of the clamping slider (18); The outer end of the resistance slide plate (16) included in the flipping fixture is fixedly connected to the inner end of the traction steel cable (19), and the outer end of the symmetrically arranged traction steel cable (19) is fixedly connected to the inner side of the clamping slider (18), and after the battery cell presses the resistance slide plate (16) close to the clamping side plate (15), the clamping slider (18) not limited by the traction steel cable (19) is moved close to the outer wall of the clamping side plate (15).

2. A turning device, comprising the turning jig according to claim 1, characterized in that: It also includes a bearing bracket (4), and the bearing bracket (4) is fixedly mounted on the top surface of the production line bottom frame (1) in an inverted "U"-shaped structure, and guide rails (5) are fixedly arranged on both the front and rear sides of the top surface of the bearing bracket (4).

3. The turning device according to claim 2, characterized in that: The flipping device comprises a distance adjusting platform (6), and the distance adjusting platform (6) is arranged on the left and right sides of the top surface of the supporting bracket (4), and the bottom surface of the symmetrically arranged distance adjusting platform (6) is slidably connected to the top of the guide rail (5) in an interlocking manner, so that the distance adjusting platform (6) is prevented from being offset and misaligned during the movement process by the guide rail (5).

4. The turning device according to claim 3, characterized in that: The flipping device comprises a driving gear (7), and the driving gear (7) is rotatably arranged behind the bottom surface of the distance adjustment platform (6) through a bearing, and the flipping device comprises a driving rack (8), and the driving rack (8) is fixedly installed behind the bottom surface of the supporting bracket (4), and the driving gear (7) and the driving rack (8) are meshed and connected with each other.

5. The turning device according to claim 4, characterized in that: The tilting device comprises a lifting sleeve (9), wherein the internal thread of the lifting sleeve (9) is connected to the outer wall of the lifting threaded rod (901), and the lifting sleeve (9) is rotatably arranged at the center position of the top surface of the distance adjusting platform (6) through a bearing, and the bottom end of the lifting threaded rod (901) is penetrated and arranged outside the bottom surface of the distance adjusting platform (6), and the inside of the distance adjusting platform (6) is equiangularly slidably connected to the middle part of the lifting slide rod (902).

6. The turning device according to claim 5, characterized in that: The flipping device comprises a flipping platform (10), wherein the top surface of the flipping platform (10) is fixedly connected to the bottom end of a lifting slide bar (902) arranged at an equal angle, and the top surface of the flipping platform (10) is fixedly connected to the bottom end of a lifting threaded rod (901), and the lifting slide bar (902) arranged at an equal angle is provided with a contact top plate (11) at the top end of the lifting threaded rod (901).

7. A cell transfer production line, comprising the flipping device according to claim 2, characterized in that: The invention also comprises a production line chassis (1), wherein the left and right sides of the production line chassis (1) are connected to a battery cell loading mechanism and a battery cell unloading mechanism to realize the production process of loading and unloading the battery cells, and defective product conveying mechanisms are arranged on both the front and rear sides of the top of the production line chassis (1), and the defective product conveying mechanism comprises a crawler conveying section (2), and defective battery cells are conveyed by the crawler conveying section (2), and battery cell blocking brackets (3) are arranged on the top surface of the crawler conveying section (2) to prevent the defective battery cells from falling.

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