Battery cell production and processing device of lithium iron phosphate battery

Abstract

The invention relates to the field of battery cell production and processing, in particular to a lithium iron phosphate battery cell production and processing device which comprises a bearing plate and a lithium battery pack placed on the bearing plate, and is characterized in that a belt conveyor is arranged on the bearing plate; aligning parts used for limiting the lithium battery pack are symmetrically arranged on the left side and the right side of the belt conveyor, n-shaped shells are arranged on the bearing plate in a left-right symmetry mode, and a welding part is jointly arranged between the two n-shaped shells. According to the lithium battery pack aligning and clamping device, aligning and clamping work of the lithium battery pack in the moving process is achieved through cooperation between the n-shaped aligning claw and the limiting shell, and it is guaranteed that the center line of the lithium battery pack in the front-back direction and the center line of the conveying belt are located on the same vertical plane; the whole welding work is linked into a whole, the continuity of the welding work is guaranteed, and then the welding work efficiency of the lithium battery pack is improved.

Description

Technical Field

[0001] The present invention relates to the field of production and processing of battery cells, and particularly to a device for producing and processing battery cells of lithium iron phosphate batteries. Background Art

[0002] As a commonly used type of lithium-ion battery, lithium iron phosphate batteries have been widely used in many fields such as new energy vehicles, energy storage devices, and outdoor power supplies due to their significant advantages such as high safety, long cycle life, and environmental friendliness and non-toxicity.

[0003] In order to meet the diverse usage scenarios of lithium battery packs, during their assembly process, each lithium battery pack is usually connected in series by welding through copper sheets or nickel sheets to ensure stable connection between the battery cells and meet a wide range of application requirements.

[0004] However, the current series welding work of lithium battery packs usually fixes the fixing device outside the lithium battery pack on the welding platform, and then uses a welding torch to perform series welding of the positive and negative electrodes of the lithium battery pack through copper sheets or nickel sheets in a spot welding manner.

[0005] When welding multiple lithium battery packs in a batch, it is often necessary to repeatedly disassemble and weld multiple lithium battery packs in sequence. However, this welding method cannot ensure the continuity of the welding work, so the welding efficiency still needs to be improved. At the same time, when manually using the welding platform to repeatedly disassemble and assemble multiple lithium battery packs in a batch, there are small deviations in the manual or clamping equipment, and thus a constant clamping force cannot be ensured. When the clamping force is small, the lithium battery pack is not effectively limited, which affects the welding quality. When the clamping force is too large, the lithium battery is easily damaged. Summary of the Invention

[0006] In view of the above problems, the embodiments of the present application provide a device for producing and processing battery cells of lithium iron phosphate batteries to solve the problems existing in the series welding of the above lithium battery packs.

[0007] To achieve the above object, the embodiments of the present application provide the following technical solution: A device for producing and processing battery cells of lithium iron phosphate batteries, including a supporting mechanism. It is characterized in that a belt conveyor is arranged on the supporting mechanism, and alignment parts for limiting the lithium battery pack are symmetrically arranged on the left and right sides of the belt conveyor. C-shaped shells are symmetrically arranged on the left and right on the supporting mechanism, and a welding part is jointly arranged between the two C-shaped shells. A lithium battery pack is placed on the supporting mechanism.

[0008] The alignment part includes an L-shaped bearing block. A pair of alignment groups for aligning and clamping the lithium battery pack are arranged on the L-shaped bearing block, and a driving and adjusting group for controlling its movement is also arranged on the L-shaped bearing block.

[0009] The alignment group described above includes a connecting block. Bar-shaped sliding rails are symmetrically arranged on the front and rear side walls of the connecting block. The alignment group also includes a U-shaped alignment claw with an opening facing the direction of the welding part and arranged inside the first mounting groove. The U-shaped alignment claw is rotatably arranged on the side wall of the connecting block away from the L-shaped supporting block.

[0010] On the side walls of the two U-shaped shells close to each other, a third sliding groove is provided. Inside the third sliding groove, a U-shaped sliding frame with a downward opening is slidably arranged through an electric slider. On the side walls of the two vertical sections of the U-shaped sliding frame close to each other, a number of teeth are fixedly arranged. Inside the third sliding groove, second adjusting racks are symmetrically slidably arranged in the front and rear directions, and the lower ends of the second adjusting racks penetrate through the U-shaped shell. Second adjusting gears are symmetrically rotatably arranged in the front and rear directions inside the third sliding groove. The second adjusting gears are respectively meshed with the corresponding second adjusting racks and the teeth on the U-shaped sliding frame. The lower ends of the two second adjusting racks are fixedly provided with inverted L-shaped sliding blocks. The other ends of the two inverted L-shaped sliding blocks are respectively slidably arranged in the corresponding bar-shaped sliding rails through T-shaped sliders.

[0011] Preferably, a roller is fixedly arranged on the end face of the U-shaped alignment claw, which rotatably penetrates through the connecting block and slidably penetrates through the sliding through groove. A first adjusting gear is fixedly arranged at the other end of the roller. On the side walls of the front and rear horizontal sections of the U-shaped alignment claw close to each other, matching sliding grooves are provided corresponding to the T-shaped limiting blocks. And on the side wall of the rear horizontal section of the U-shaped alignment claw, a bar-shaped telescopic plate for blocking the lithium battery pack is also fixedly arranged.

[0012] Preferably, the supporting mechanism includes a U-shaped supporting plate with a downward opening. On the horizontal section of the U-shaped supporting plate, bar-shaped supporting plates and trapezoidal limiting plates are symmetrically fixedly arranged on the left and right. The trapezoidal limiting plates are fixedly arranged on the upper end faces of the bar-shaped supporting plates. On the upper ends of the bar-shaped supporting plates and the trapezoidal limiting plates close to the rear side corresponding to the opening position of the U-shaped shell, a first mounting groove is provided in communication. The inclined surface of the trapezoidal limiting plate faces forward, and a roller shaft is rotatably arranged at the corner of the inclined surface of the trapezoidal limiting plate.

[0013] Preferably, on the side wall of the vertical section of the L-shaped supporting block close to the U-shaped supporting plate, first sliding grooves are symmetrically arranged in the front and rear directions. The connecting block is respectively slidably arranged in the two first sliding grooves through two sliding blocks. A sliding through groove penetrating through the end face of the L-shaped supporting block is provided between the two first sliding grooves. A second sliding groove is also provided on the vertical section of the L-shaped supporting block, and the second sliding groove is arranged on the side away from the U-shaped supporting plate and is communicated with the rear first sliding groove.

[0014] Preferably, the welding part includes a cross-shaped bearing plate with its left and right ends fixedly connected to the two C-shaped sliding frames on both sides respectively. A second telescopic push rod penetrating its end face is fixedly arranged downward on the upper end face of the cross-shaped bearing plate. A strip-shaped pressing plate extending in the front-back direction and having a strip-shaped sliding groove opened on its lower end face is fixedly arranged on the telescopic section of the second telescopic push rod. Mounting frames are fixedly arranged on the front and back side walls of the cross-shaped bearing plate through connecting plates. A sliding plate is slidably arranged inside the mounting frame through an electric slider. Two spot welding groups are arranged on the lower end face of the sliding plate, and each group is provided with a plurality of spot welding heads. The upper ends of one group of spot welding heads penetrate the sliding plate and are commonly connected to a matching pressing plate. The upper end of the matching pressing plate is slidably arranged in the strip-shaped sliding groove through a T-shaped slider.

[0015] Preferably, the driving and adjusting assembly includes a mounting plate fixedly arranged between the two C-shaped support plates. A double-shaft motor is fixedly arranged on the upper end face of the mounting plate. Two output shafts of the double-shaft motor are respectively fixedly provided with threaded rods with opposite rotation directions and rotatably connected to the side walls of the corresponding C-shaped support plates. The outer walls of the two threaded rods are respectively threadedly connected to the horizontal sections of the corresponding L-shaped bearing blocks. The driving and adjusting group further includes a first telescopic push rod slidably arranged inside the first sliding groove through a sliding block. A first adjusting rack is fixedly arranged on the telescopic section of the first telescopic push rod. The first adjusting rack is also slidably arranged in the first sliding groove through a sliding block and is located above the first telescopic push rod. An L-shaped linkage block fixedly connected to the lower end face of the connecting block is also fixedly arranged on the sliding block.

[0016] Preferably, the belt conveyor includes a conveyor belt driven by an external motor. The conveyor belt is arranged on the C-shaped support plates through two front and rear conveyor rollers, and a plurality of trapezoidal telescopic blocks evenly distributed for pushing the lithium battery pack to move are arranged on the end face of the conveyor belt.

[0017] Preferably, the lithium battery pack is placed in a limiting housing. T-shaped limiting blocks are fixedly arranged on the front and rear side walls of the limiting housing in a vertically staggered manner. Mounting grooves two are opened on the left and right inner side walls of the limiting housing. A pressing block for adaptively limiting and pressing the lithium battery pack is fixedly arranged inside the mounting groove two through a spring.

[0018] Compared with the prior art, the embodiment of the present invention has the following beneficial effects:

[0019] 1. Through the linkage between the welding part and the C-shaped alignment claws, the present invention can realize the synchronous approach and synchronous principle operation of the spot welding heads and the lithium battery pack. Using the linkage method makes the entire welding work linked into a whole, ensuring the continuity of the welding work, and then improving the efficiency of the lithium battery pack welding work.

[0020] 2. The present invention realizes the limiting and pressing work on the lithium battery pack through the limiting housing, avoiding direct contact between the lithium battery pack and the clamping mechanism during the clamping process, thereby damaging the battery cells. At the same time, the cooperation between the C-shaped alignment claws on both sides and the limiting housing realizes the alignment and clamping work on the lithium battery pack during the moving process. The T-shaped limiting blocks arranged up and down in a staggered manner on the front and rear sides of the limiting housing adjust the relative position of the lithium battery pack with respect to the conveyor belt before the welding work while improving the clamping strength, ensuring that the center line of the lithium battery pack in the front-rear direction and the center line of the conveyor belt are on the same vertical plane, and then ensuring the clamping quality of the lithium battery pack, thereby improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 is a structural schematic diagram of the present invention after removing the C-shaped housing and the welding part.

[0023] Figure 3 is Figure 2 the planar structural schematic diagram of...

[0024] Figure 4 is a schematic diagram of the positional relationship between the alignment part and the supporting mechanism of the present invention.

[0025] Figure 5 is a partial structural schematic diagram of the alignment group in the present invention.

[0026] Figure 6 is a partial structural schematic diagram of the drive adjustment group in the present invention.

[0027] Figure 7 is a positional relationship diagram of the C-shaped alignment claw and the connecting block in the present invention.

[0028] Figure 8 is a schematic diagram of the internal structure of the C-shaped housing in the present invention.

[0029] Fig. 9 is a schematic diagram of the positional relationship between the C-shaped housing and the cross-shaped support plate in the present invention.

[0030] Fig.10 is a three-dimensional schematic diagram of the first position of the partial structure of the welding part in the present invention.

[0031] Fig.11 is a three-dimensional schematic diagram of the second position of the partial structure of the welding part in the present invention.

[0032] Fig.12 is a planar structural sectional view of the welding part.

[0033] Fig.13 is a sectional view of the limiting housing in the present invention.

[0034] Reference numerals in the drawings: 1, supporting mechanism; 11, U-shaped support plate; 12, strip-shaped bearing plate; 121, trapezoidal limiting plate; 2, belt conveyor; 21, conveyor belt; 22, trapezoidal telescopic block; 3, alignment part; 31, L-shaped bearing block; 311, first sliding groove; 312, sliding through groove; 313, second sliding groove; 32, alignment group; 321, connecting block; 322, strip-shaped slide rail; 323, U-shaped alignment claw; 3231, strip-shaped telescopic plate; 3232, mating sliding groove; 324, first adjusting gear; 33, driving and adjusting group; 331, mounting plate; 332, double-shaft motor; 334, threaded rod; 335, first telescopic push rod; 336, first adjusting rack; 337, L-shaped linkage block; 4, U-shaped housing; 41, third sliding groove; 42, U-shaped sliding frame; 43, second adjusting gear; 44, second adjusting rack; 441, inverted L-shaped sliding block; 5, welding part; 51, cross-shaped bearing plate; 52, second telescopic push rod; 53, strip-shaped pressing plate; 531, strip-shaped sliding groove; 54, mounting frame; 55, sliding plate; 56, spot welding head; 57, mating pressing plate; 6, lithium battery pack; 61, limiting housing; 62, T-shaped limiting block; 63, pressing block. Detailed implementation manners

[0035] The following Figure 1-13 further elaborates on this application in detail.

[0036] Please refer to Figure 1 and Fig.13 , a core production and processing device for lithium iron phosphate batteries, including a supporting mechanism 1 on which a lithium battery pack 6 is placed. A belt conveyor 2 is arranged on the supporting mechanism 1. Alignment parts 3 for limiting the lithium battery pack 6 are symmetrically arranged on the left and right sides of the belt conveyor 2. U-shaped housings 4 with openings facing downwards are symmetrically arranged on the left and right on the supporting mechanism 1. A welding part 5 is jointly arranged between the two U-shaped housings 4.

[0037] Please refer to Figure 1 and Figure 2 , the supporting mechanism 1 includes a U-shaped support plate 11 with an opening facing downwards. Strip-shaped bearing plates 12 and trapezoidal limiting plates 121 are symmetrically and fixedly arranged on the horizontal section of the U-shaped support plate 11. The trapezoidal limiting plates 121 are fixedly arranged on the upper end surfaces of the strip-shaped bearing plates 12. A first installation groove communicating with each other is opened at the positions near the rear sides of the upper ends of the strip-shaped bearing plates 12 and the trapezoidal limiting plates 121 corresponding to the openings of the U-shaped housings 4. The inclined surfaces of the trapezoidal limiting plates 121 face forward, and roller shafts are rotatably arranged at the corners of the inclined surfaces of the trapezoidal limiting plates 121.

[0038] Please refer to Figure 2 and Figure 4, the belt conveyor 2 includes a conveyor belt 21 driven by an external motor. The conveyor belt 21 is arranged on the U-shaped support plate 11 through two front and rear conveyor rollers, and a plurality of trapezoidal telescopic plates 22 evenly distributed are arranged at the end face of the conveyor belt 21 for pushing the lithium battery pack 6 to move.

[0039] Please refer to Figure 1 and Fig.13 , the lithium battery pack 6 is placed in the limit housing 61. T-shaped limit blocks 62 are fixedly arranged on the front and rear side walls of the limit housing 61 in a vertically staggered manner, and mounting grooves two are opened on the left and right inner side walls of the limit housing 61. A tightening block 63 for adaptively limiting and tightening the lithium battery pack 6 is fixedly arranged inside the mounting groove two through a spring.

[0040] During specific operation, first place the lithium battery pack 6 into the limit housing 61, and adaptively tighten the lithium battery pack 6 through the two tightening blocks 63 in the inner cavity of the limit housing 61. Then, convey the lithium battery pack 6 placed in the limit housing 61 to the strip-shaped bearing plate 12 through an external conveying device. Then start the external motor to drive the conveyor belt 21 and the trapezoidal telescopic block 22 to operate. At this time, the lithium battery pack 6 above the strip-shaped bearing plate 12 moves along the length direction of the strip-shaped bearing plate 12 under the push of the trapezoidal telescopic block 22. When the lithium battery pack 6 moves to the corner of the trapezoidal limit plate 121, adjust the position of the lithium battery pack 6 through the roller shaft on the trapezoidal limit plate 121, so that the center line in the front and rear directions of the limit housing 61 and the center line of the conveyor belt 21 are in the same vertical plane. Continue to control the conveyor belt 21 and the trapezoidal telescopic block 22 to push the lithium battery pack 6 to move between the two alignment parts 3.

[0041] Please refer to Figure 1 and Figure 2 , the alignment part 3 includes an L-shaped bearing block 31 that horizontally slides through the U-shaped support plate 11. A pair of alignment groups 32 for aligning and clamping the lithium battery pack 6 are arranged on the L-shaped bearing block 31, and a driving and adjusting group 33 for controlling its movement is also arranged on the L-shaped bearing block 31.

[0042] Please refer to Figure 5 and Figure 6 , on one side wall of the vertical section of the L-shaped bearing block 31 close to the U-shaped support plate 11, sliding grooves one 311 are symmetrically opened in the front and rear directions. A sliding through groove 312 penetrating the end face of the L-shaped bearing block 31 is opened between the two sliding grooves one 311. A sliding groove two 313 is also opened on the vertical section of the L-shaped bearing block 31. The sliding groove two 313 is arranged on the side away from the U-shaped support plate 11 and is communicated with the sliding groove one 311 at the rear end.

[0043] Please refer to Figure 2, the alignment group 32 includes a connecting block 321 slidably arranged in two sliding grooves 311 through two sliding blocks respectively. Bar-shaped sliding rails 322 are symmetrically arranged on the front and rear side walls of the connecting block 321. The alignment group 32 further includes a U-shaped alignment claw 323 with an opening facing the welding part 5 and arranged inside the first installation groove. The U-shaped alignment claw 323 is rotatably arranged on a side wall of the connecting block 321 away from the L-shaped bearing block 31. A rotating roller is fixedly arranged on the end face of the U-shaped alignment claw 323, which rotates through the connecting block 321 and slides through the sliding groove 312. The other end of the rotating roller is fixedly provided with an adjusting gear 324.

[0044] Please refer to Figure 7 , sliding fit grooves are correspondingly arranged on the side walls of the front and rear horizontal sections of the U-shaped alignment claw 323 close to the T-shaped limit block 62, and a bar-shaped telescopic plate 3231 for blocking the lithium battery pack 6 is also fixedly arranged on the side wall of the rear horizontal section of the U-shaped alignment claw 323.

[0045] Please refer to Figure 1 、 Figure 3 and Figure 6 , the driving and adjusting group 33 includes a mounting plate 331 fixedly arranged between two U-shaped support plates 11. A double-shaft motor 332 is fixedly arranged on the upper end face of the mounting plate 331. Threaded rods 334 with opposite rotation directions are respectively fixedly arranged on the two output shafts of the double-shaft motor 332 and are rotatably connected to the side walls of the corresponding U-shaped support plates 11. The outer walls of the two threaded rods 334 are respectively threadedly connected to the horizontal sections of the corresponding L-shaped bearing blocks 31. The driving and adjusting group 33 further includes a first telescopic push rod 335 slidably arranged in the sliding groove 311 through a sliding block. An adjusting rack 336 is fixedly arranged on the telescopic section of the first telescopic push rod 335. The adjusting rack 336 is also slidably arranged in the sliding groove 311 through a sliding block and is located above the first telescopic push rod 335. An L-shaped linkage block 337 fixedly connected to the lower end face of the connecting block 321 is also fixedly arranged on the sliding block.

[0046] When the lithium battery pack 6 is pushed backward and blocked by two bar-shaped telescopic plates 3231 between the two first installation grooves, the power supply of the external motor is disconnected, and then the double-shaft motor 332 is started to drive the threaded rods 334 on both sides to rotate synchronously. The L-shaped bearing blocks 31 on both sides move closer synchronously under the drive of the threaded rods 334 with opposite rotation directions. The U-shaped alignment claws 323 located inside the first installation groove also move closer synchronously under the push of the L-shaped bearing blocks 31 and the connecting block 321. When the two U-shaped alignment claws 323 move closer synchronously, they gradually cooperate with the T-shaped limit blocks 62 on both sides and slide into the corresponding mating sliding grooves 3232, thereby completing the alignment and clamping work of the limit housing 61 and the lithium battery pack 6.

[0047] It should be noted that refer to Figure 4and Figure 7 When the U-shaped alignment claws 323 on both sides approach each other, through the cooperation of their lower ends with the inclined surface of the trapezoidal telescopic block 22, the telescopic section of the trapezoidal telescopic block 22 is compressed and retracted by the U-shaped alignment claws 323. At the same time, when the U-shaped alignment claws 323 on both sides approach each other, the strip-shaped telescopic plates 3231 provided on the two U-shaped alignment claws 323 will push against each other and retract into the corresponding U-shaped alignment claws 323.

[0048] Please refer to Figure 8 and Fig. 9 On one side wall of the two U-shaped shells 4 close to each other, a third sliding groove 41 is provided. Inside the third sliding groove 41, a U-shaped sliding frame 42 with a downward opening is slidably arranged through an electric slider. On one side wall of the two vertical sections of the U-shaped sliding frame 42 close to each other, a number of teeth are fixedly arranged. Inside the third sliding groove 41, second adjusting racks 44 whose lower ends penetrate through the U-shaped shell 4 are symmetrically slidably arranged in the front and back. Second adjusting gears 43 are symmetrically rotatably arranged in the third sliding groove 41. The second adjusting gears 43 are respectively meshed with the corresponding second adjusting racks 44 and the teeth on the U-shaped sliding frame 42. At the lower ends of the two second adjusting racks 44, inverted L-shaped sliding blocks 441 are fixedly arranged. The other ends of the two inverted L-shaped sliding blocks 441 are respectively slidably arranged in the corresponding strip-shaped sliding rails 322 through T-shaped sliders.

[0049] Please refer to Fig. 9 、 Fig.10 、 Fig.11 and Fig.12 The welding part 5 includes a cross-shaped bearing plate 51 whose left and right ends are respectively fixedly connected to the U-shaped sliding frames 42 on both sides. On the upper end surface of the cross-shaped bearing plate 51, a second telescopic push rod 52 penetrating its end surface is fixedly arranged downward. The telescopic section of the second telescopic push rod 52 is fixedly provided with a strip-shaped pressing plate 53 extending in the front and back direction and having a strip-shaped sliding groove 531 opened on its lower end surface. The front and back side walls of the cross-shaped bearing plate 51 are fixedly provided with mounting frames 54 through connecting plates. Inside the mounting frames 54, sliding plates 55 are slidably arranged through electric sliders. On the lower end surface of the sliding plates 55, two spot welding groups are provided, and each group is provided with a number of spot welding heads 56. The upper ends of one group of spot welding heads 56 penetrate through the sliding plates 55 and are commonly connected to a cooperating pressing plate 57. The upper end of the cooperating pressing plate 57 is slidably arranged in the strip-shaped sliding groove 531 through a T-shaped slider.

[0050] After the U-shaped alignment claws 323 on both sides limit and clamp the lithium battery pack 6, the electric slider located inside the third sliding groove 41 drives the cross-shaped bearing plate 51 to move downward through the U-shaped sliding frame 42. A number of teeth provided on the two U-shaped sliding frames 42 engage with the corresponding second adjusting gear 43, causing the second adjusting gear 43 to rotate. At this time, the second adjusting rack 44 located inside the U-shaped housing 4 moves upward under the engagement of the second adjusting gear 43, and drives the connecting block 321 to slide upward along the first sliding groove 311 through the inverted L-shaped sliding block 441. When the connecting block 321 slides upward, the first telescopic push rod 335 and the adjusting rack slide upward along the first sliding groove 311 under the drive of the L-shaped linkage block 337 until the lithium battery pack 6 and the two welding heads 56 approach each other to the specified welding position.

[0051] While the lithium battery pack 6 and the cross-shaped bearing plate 51 approach each other, the solder pads to be welded are placed on the lithium battery pack 6 by an external solder pad automatic placer. Then, the positive and negative electrodes of the lithium battery pack 6 are connected in series by the two spot welding heads 56. After the positive and negative electrodes of a group of lithium batteries are welded, the electric sliders on both sides of the sliding plate 55 are controlled to drive the sliding plate 55 and the matching pressing plate 57 to move backward, and cooperate with the external solder pad feeder to connect the positive and negative electrodes of the next group of lithium batteries in series. Repeating the above steps can complete the series welding work of the positive and negative electrodes on one side of the lithium battery pack 6.

[0052] It should be noted that there is a certain height difference between the positive and negative electrodes of the lithium battery pack 6. Therefore, the initial positions of the two spot welding heads 56 are different, that is, the height of the group of spot welding heads 56 located above the negative lithium battery is slightly lower than that of the other group of spot welding heads 56, and the group of spot welding heads 56 above the negative lithium battery is connected to the matching pressing plate 57.

[0053] After the series welding of the positive and negative electrodes on one side of the lithium battery pack 6 is completed, control the telescopic push rod 335 inside the sliding groove 313 to drive the adjusting rack 336 to extend. The adjusting rack 336 meshes with the adjusting gear 324 and drives the adjusting gear 324 and the U-shaped alignment claw 323 to rotate. The lithium battery pack 6 located inside the U-shaped alignment claw 323 also rotates. At this time, the positions of the positive and negative electrodes of the lithium battery pack 6 are opposite to the initial surface positions. Then, control the telescopic push rod 52 to drive the strip-shaped pressing plate 53 and the matching pressing plate 57 to retract, so that the height of a set of spot welding heads 56 provided on the matching pressing plate 57 is higher than that of the other set of spot welding heads 56. Then repeat the above welding steps to complete the series welding work of the positive and negative electrodes on the second side of the lithium battery. After the welding is completed, control the telescopic push rod 335 to retract and drive the U-shaped alignment claw 323 and the lithium battery pack 6 to flip to the initial position. While the electric slider inside the sliding groove 41 drives the cross-shaped bearing plate 51 to move upward, the lithium battery pack 6 moves downward to the strip-shaped bearing plate 12 under the meshing of the adjusting gear 43 and the adjusting rack 44. Finally, control the double-axis motor 332 to reverse. When the two U-shaped alignment claws 323 move away synchronously, the trapezoidal telescopic block 22 gradually extends. Then start the peripheral motor and continue to push the welded lithium battery pack 6 to the next processing area by the trapezoidal telescopic block 22.

[0054] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "outside", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, the meanings of "multiple", "multiple roots", and "multiple groups" are two or more.

[0055] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An electrode production and processing device for a lithium iron phosphate battery, comprising a supporting mechanism (1). Characterized in that, A belt conveyor (2) is arranged on the supporting mechanism (1), and alignment parts (3) for limiting the lithium battery pack (6) are symmetrically arranged on the left and right sides of the belt conveyor (2). C-shaped shells (4) are symmetrically arranged on the left and right on the supporting mechanism (1). A welding part (5) is jointly arranged between the two C-shaped shells (4). The lithium battery pack (6) is placed on the supporting mechanism (1); The alignment part (3) includes an L-shaped supporting block (31). A pair of alignment groups (32) for clamping and aligning the lithium battery pack (6) are arranged on the L-shaped supporting block (31), and a driving and adjusting group (33) for controlling its movement is also arranged on the L-shaped supporting block (31); The alignment group (32) includes a connecting block (321). Strip-shaped sliding rails (322) are symmetrically arranged on the front and rear side walls of the connecting block (321). The alignment group (32) further includes a C-shaped alignment claw (323) with an opening facing the direction of the welding part (5) and arranged inside the first installation groove. The C-shaped alignment claw (323) is rotatably arranged on the side wall of the connecting block (321) away from the L-shaped supporting block (31); Sliding grooves three (41) are opened on the side walls of the two C-shaped shells (4) close to each other. A C-shaped sliding frame (42) with a downward opening is slidably arranged inside the sliding groove three 41 through an electric slider. A plurality of teeth are fixedly arranged on the side walls of the two vertical sections of the C-shaped sliding frame (42) close to each other. Adjusting racks two (44) with the lower ends penetrating through the C-shaped shell (4) are symmetrically slidably arranged in the front and rear of the inside of the sliding groove three (41). Adjusting gears two (43) are symmetrically rotatably arranged in the front and rear of the sliding groove three (41). The adjusting gears two (43) are respectively meshed and connected with the corresponding adjusting racks two (44) and the teeth on the C-shaped sliding frame (42). Inverted L-shaped sliding blocks (441) are fixedly arranged at the lower ends of the two adjusting racks two (44). The other ends of the two inverted L-shaped sliding blocks (441) are respectively slidably arranged in the corresponding strip-shaped sliding rails (322) through T-shaped sliders.

2. An electrode production and processing device for a lithium iron phosphate battery according to claim 1, Characterized in that: A roller rotatably penetrating through the connecting block (321) and slidably penetrating through the sliding through groove (312) is fixedly arranged on the end face of the C-shaped alignment claw (323). An adjusting gear one (324) is fixedly arranged at the other end of the roller. Matching sliding grooves (3232) are opened on the side walls of the front and rear horizontal sections of the C-shaped alignment claw (323) close to each other corresponding to the T-shaped limiting blocks (62). A strip-shaped telescopic plate (3231) for blocking the lithium battery pack (6) is fixedly arranged on the side wall of the rear horizontal section of the C-shaped alignment claw (323).

3. An electrode production and processing device for a lithium iron phosphate battery according to claim 1, Characterized in that: The supporting mechanism 1 includes a U-shaped support plate (11) with an opening facing downward. On the horizontal section of the U-shaped support plate (11), a strip-shaped bearing plate (12) and a trapezoidal limiting plate (121) are symmetrically and fixedly arranged on the left and right. The trapezoidal limiting plate (121) is fixedly arranged on the upper end surface of the strip-shaped bearing plate (12). An interconnected installation groove 1 is opened at the upper ends of the strip-shaped bearing plate 12 and the trapezoidal limiting plate 121 near the rear side corresponding to the opening position of the U-shaped housing 4. The inclined surface of the trapezoidal limiting plate (121) faces forward, and a roller shaft is rotatably arranged at the corner of the inclined surface of the trapezoidal limiting plate (121).

4. A core production and processing device for a lithium iron phosphate battery according to claim 3, characterized in that: On one side wall of the vertical section of the L-shaped bearing block (31) close to the U-shaped support plate (11), sliding grooves 1 (311) are symmetrically arranged in the front and rear. The connecting block (321) is slidably arranged in the two sliding grooves 1 (311) through two sliding blocks respectively. A sliding through groove (312) penetrating the end face of the L-shaped bearing block (31) is opened between the two sliding grooves 1 (311). A sliding groove 2 (313) is also opened on the vertical section of the L-shaped bearing block (31). The sliding groove 2 (313) is arranged on the side far from the U-shaped support plate (11) and is communicated with the sliding groove 1 (311) at the rear end.

5. A core production and processing device for a lithium iron phosphate battery according to claim 1, characterized in that: The welding part (5) includes a cross-shaped bearing plate (51) with its left and right ends fixedly connected to the two U-shaped sliding frames (42) on both sides respectively. A telescopic push rod 2 (52) penetrating its end face is fixedly arranged downward on the upper end face of the cross-shaped bearing plate (51). A strip-shaped pressing plate (53) extending in the front-rear direction and having a strip-shaped sliding groove (531) opened on its lower end face is fixedly arranged on the telescopic section of the telescopic push rod 2 (52). Mounting frames (54) are fixedly arranged on the front and rear side walls of the cross-shaped bearing plate (51) through connecting plates. A sliding plate (55) is slidably arranged inside the mounting frame (54) through an electric slider. Two spot welding groups are arranged on the lower end face of the sliding plate (55), and each group is provided with a plurality of spot welding heads (56). The upper ends of one group of spot welding heads (56) penetrate the sliding plate (55) and are commonly connected to a matching pressing plate (57). The upper end of the matching pressing plate (57) is slidably arranged in the strip-shaped sliding groove (531) through a T-shaped slider.

6. A core production and processing device for a lithium iron phosphate battery according to claim 3, characterized in that: The driving and adjusting group (33) includes a mounting plate (331) fixedly arranged between two U-shaped support plates (11). A double-shaft motor (332) is fixedly arranged on the upper end surface of the mounting plate (331). Threaded rods (334) with opposite rotation directions and rotatably connected to the side walls of the corresponding U-shaped support plates (11) are fixedly arranged on the two output shafts of the double-shaft motor (332). The outer walls of the two threaded rods (334) are respectively threadedly connected to the horizontal sections of the corresponding L-shaped bearing blocks (31). The driving and adjusting group (33) further includes a first telescopic push rod (335) slidably arranged inside a first sliding groove (311) through a sliding block. An adjusting rack (336) is fixedly arranged on the telescopic section of the first telescopic push rod (335). The adjusting rack (336) is also slidably arranged in the first sliding groove (311) through a sliding block and is located above the first telescopic push rod (335). An L-shaped linkage block (337) fixedly connected to the lower end surface of the connecting block (321) is further fixedly arranged on the sliding block.

7. The core production and processing device for a lithium iron phosphate battery according to claim 1, characterized in that: The belt conveyor (2) includes a conveyor belt (21) driven by an external motor. The conveyor belt (21) is arranged on the U-shaped support plate (11) through front and rear conveyor rollers, and a plurality of trapezoidal telescopic blocks (22) evenly distributed for pushing the lithium battery pack (6) to move are arranged at the end surface of the conveyor belt (21).

8. The core production and processing device for a lithium iron phosphate battery according to claim 7, characterized in that: The lithium battery pack (6) is placed in a limiting housing (61). T-shaped limiting blocks (62) are fixedly arranged on the front and rear side walls of the limiting housing (61) in a vertically staggered manner. Installation grooves (63) are formed in the left and right inner side walls of the limiting housing (61). Tightening blocks (63) for adaptively limiting and pressing the lithium battery pack (6) are fixedly arranged inside the installation grooves (63) through springs.

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