Lithium ion battery assembly production line

Abstract

The lithium ion battery assembly production line comprises an assembly groove, a transfer mechanism, an overlapping mechanism and a correction mechanism, the transfer mechanism is used for establishing connection between the assembly groove and gluing equipment, and linear driving sliding grooves are formed in the inner walls of the two opposite sides of the assembly groove correspondingly; the linear driving sliding groove is connected with a bottom plate through a first sliding block, a plurality of battery blocks are stacked at the top end of the bottom plate, a penetrating groove is formed in the back of the assembling groove in a penetrating mode, a first hydraulic rod is arranged on one side of the penetrating groove, and the transmission mechanism and the stacking mechanism are connected to the platform. The overlapping mechanism comprises two clamping seats, the two clamping seats are used for clamping and fixing a battery block, a third hydraulic rod is connected between the two clamping seats at the same time, and the same sides of the two clamping seats are connected with a second transverse plate at the same time; the lithium ion battery assembly production line disclosed by the invention has the effect of enhancing the connection tightness of the battery blocks by optimizing the uniform distribution of glue and shortening the transfer path.

Description

Technical Field

[0001] The invention relates to the technical field of lithium ion battery assembly, and in particular to a lithium ion battery assembly production line. Background Art

[0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work. During the charge and discharge process, Li+ is intercalated and deintercalated between the two electrodes: when charging, Li+ is deintercalated from the positive electrode and intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

[0003] In lithium-ion battery production lines, it is generally necessary to use a robotic arm to clamp the glued battery blocks and transfer them to the assembly tank to stack multiple battery blocks. The stacking process is just to stack the battery blocks one by one vertically. Therefore, during the transfer process, the glue surface may be affected by wind, thus affecting its curing process. At the same time, the glue area is limited only by vertical stacking, which will lead to uneven distribution of the glue area. This will directly affect the tightness of the connection between adjacent battery blocks. Summary of the invention

[0004] The invention discloses a lithium-ion battery assembly production line, which aims to solve the technical problems that during the transfer process, the glue surface may be affected by wind, thereby affecting its curing process, and at the same time, the adhesive area is limited only by longitudinal stacking, which leads to uneven distribution of the adhesive area.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A lithium-ion battery assembly production line comprises an assembly tank, a transmission mechanism, a superposition mechanism and a correction mechanism, wherein the transmission mechanism is used to establish a connection between the assembly tank and a glue coating device, the inner walls on opposite sides of the assembly tank are respectively provided with linear drive slides, and the linear drive slides are connected to a bottom plate through a first slider, and a plurality of battery blocks are stacked on the top of the bottom plate, a through groove is provided through the back of the assembly tank, and a first hydraulic rod is provided on one side of the through groove, and the transmission mechanism and the superposition mechanism are connected to a platform; the superposition mechanism comprises two clamping seats, and the two clamping seats are used to clamp and fix the battery blocks, and the two clamping seats are used to clamp and fix the battery blocks, and the two A third hydraulic rod is simultaneously connected between the clamping seats, and a second cross plate is simultaneously connected to the same side of the two clamping seats, the top of each of the clamping seats is respectively fixedly connected to a second sliding block, and the second sliding block is movably connected to the second linear drive slide rail, the top of each of the second linear drive slide rails is respectively fixedly connected to a clamping slot, the inside of the clamping slot is movably connected to the bottom end of the screw rod through a clamping block, and a screw rod lift is connected to the outside of the screw rod, and the screw rod lift is fixed to the top of the platform, a side inner wall of one side of the clamping seats is fixedly connected to a side limit plate, and a bottom limit plate is movably provided at the bottom end of the clamping seat;

[0007] One end of the second cross plate is fixed to one of the clamping seats, and a second slide groove is provided on one side of the second cross plate, a third slider is movably connected in the second slide groove, and the third slider is fixed to another clamping seat, a groove is provided at the bottom end of each clamping seat, and a bottom limit plate is movably connected in the groove, one end of the bottom limit plate is fixedly connected to a fourth hydraulic rod, and one end of the fourth hydraulic rod is connected to the inner wall of the groove.

[0008] By providing an assembly groove and an overlapping mechanism, the screw is slowly driven downward by a screw lift in the overlapping mechanism, and the second linear drive rail is driven to be slowly pressed downward by the clamping structure of the clamping block and the clamping groove. During the pressing process, the second linear drive rail drives the second slider to reciprocate in a short distance to realize the curved movement of the clamping seat. During the process, the glue on the adhesion surface can be expanded through translation, thereby realizing uniform distribution of glue at the bonding position. At the same time, the transfer path is shortened by the transmission of the transmission mechanism to reduce the probability of the glue being affected by wind. The combination of the two can effectively ensure the tightness of the battery connection.

[0009] In a preferred scheme, the correction mechanism includes a side support shell, and the side support shell is fixedly connected to an outer wall of one side of the assembly groove, and a first slide groove is hung on the middle section of the side support shell, a circular support plate is movably clamped in the first slide groove, and an outer wall of one side of the circular support plate is fixedly connected to an arc support plate, the inner wall of the arc support plate is attached to the outer wall of the side support shell, the bottom end of the circular support plate is connected to a first motor, and the first motor is arranged in the side support shell, one end of the arc support plate is fixedly connected to a pressure plate, and a second hydraulic rod is arranged on one side of the pressure plate.

[0010] A correction mechanism is provided, which mainly pushes one side of the multiple battery blocks through a pressure plate after the multiple battery blocks are overlapped in the assembly groove, thereby correcting the multiple battery blocks based on the position of the inner wall of the assembly groove to ensure the neatness of the battery block stacking. By stretching the second hydraulic rod, one end of the pressure plate is pushed to press on one side of the outer wall of the assembly groove, thereby the battery blocks can be pushed synchronously to achieve the correction effect.

[0011] In a preferred solution, the transmission mechanism comprises two landing frames, and a slot is provided between the two landing frames, and the two landing frames are fixed on the platform at the same time, and one side of the two landing frames is respectively fixedly connected with a side extension plate, and the same side of the two landing frames is simultaneously connected with a first cross plate, and a plurality of through holes are simultaneously provided on the side extension plate and the landing frames, and a flapping plate is provided between the two side extension plates, one end of the flapping plate is fixedly connected with a support rod, and the top end of the support rod is fixedly connected with a second gear, one side of the second gear is provided with a toothless groove, one side of the support rod is fixedly connected with a torsion spring, and one end of the torsion spring is fixed to the top of the platform, one side of the second gear is meshed with the first gear, and the bottom end of the first gear is fixedly connected with a second motor.

[0012] By providing a transmission mechanism, the second motor can drive the support rod to rotate back and forth on both sides, thereby driving the flapping plate to flap on the inner walls of the side extension plates respectively. At the same time, based on the effect of amplifying vibration by perforation, the vibration is guided by the side extension plate to simulate the effect of flapping the landing gear, so as to avoid the battery block being blocked in the landing gear under the action of friction, thereby ensuring its smooth falling.

[0013] As can be seen from the above, a lithium-ion battery assembly production line includes an assembly tank, a transfer mechanism, a superposition mechanism and a correction mechanism. The transfer mechanism is used to establish a connection between the assembly tank and the glue coating equipment. The inner walls on the opposite sides of the assembly tank are respectively provided with linear drive slides, and the linear drive slides are connected to a bottom plate through a first slider. A plurality of battery blocks are stacked on the top of the bottom plate. A through groove is provided through the back of the assembly tank, and a first hydraulic rod is provided on one side of the through groove. The transfer mechanism and the superposition mechanism are connected to the platform; the superposition mechanism includes two clamping seats, and the two clamping seats are used to clamp and fix the battery blocks , a third hydraulic rod is connected between the two clamping seats at the same time, and a second cross plate is connected to the same side of the two clamping seats at the same time, the top of each clamping seat is fixedly connected to a second slider, and the second slider is movably connected to the second linear drive rail, and the top of each second linear drive rail is fixedly connected to a slot, and the slot is movably connected to the bottom end of the screw rod through a clamping block, and the screw rod is externally connected to a screw rod lifter, and the screw rod lifter is fixed to the top of the platform, and a side inner wall of one side of one of the clamping seats is fixedly connected to a side limit plate, and a bottom limit plate is movably provided at the bottom end of the clamping seat. The lithium-ion battery assembly production line provided by the present invention has the technical effect of enhancing the tightness of battery block connection by optimizing the uniform distribution of glue and shortening the transfer path. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a lithium-ion battery assembly production line proposed by the present invention.

[0015] Figure 2This is a schematic diagram of the assembly tank structure of a lithium-ion battery assembly production line proposed by the present invention.

[0016] Figure 3 This is a schematic diagram of the split structure of the stacking mechanism of a lithium-ion battery assembly production line proposed by the present invention.

[0017] Figure 4 This is a schematic diagram of the bottom structure of a stacking mechanism of a lithium-ion battery assembly production line proposed by the present invention.

[0018] Figure 5 This is a schematic diagram of the disassembled structure of a correction mechanism of a lithium-ion battery assembly production line proposed by the present invention.

[0019] Figure 6 This is a schematic diagram of the structure of a transfer mechanism of a lithium-ion battery assembly production line proposed by the present invention.

[0020] In the figure: 1, correction mechanism; 2, transmission mechanism; 3, overlapping mechanism; 4, first hydraulic rod; 5, assembly groove; 6, through groove; 7, first linear drive slide rail; 8, first slider; 9, bottom plate; 10, platform; 101, second hydraulic rod; 102, pressure plate; 103, side support shell; 104, first slide groove; 105, first motor; 106, circular support plate; 107, curved support plate; 201, landing frame; 202, notch; 203, through hole; 204, first gear; 205, second motor; 206, first The second gear; 207, the toothless groove; 208, the torsion spring; 209, the support rod; 210, the flapping plate; 211, the side extension plate; 212, the first horizontal plate; 301, the screw lift; 302, the screw; 303, the clamping block; 304, the clamping groove; 305, the second linear drive slide rail; 306, the second slider; 307, the clamping seat; 308, the side limit plate; 309, the third hydraulic rod; 310, the second horizontal plate; 311, the second slide groove; 312, the third slider; 313, the fourth hydraulic rod; 314, the bottom limit plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] A lithium-ion battery assembly production line disclosed in the present invention is mainly used in the scenario of lithium-ion battery assembly production.

[0023] Reference Figure 1-Figure 4A lithium-ion battery assembly production line includes an assembly tank 5, a transmission mechanism 2, a superposition mechanism 3 and a correction mechanism 1. The transmission mechanism 2 is used to establish a connection between the assembly tank 5 and the glue coating device. The inner walls of the assembly tank 5 on opposite sides are respectively provided with linear drive slides 7, and the linear drive slides 7 are connected to a bottom plate 9 through a first slider 8. A plurality of battery blocks are stacked on the top of the bottom plate 9. A through groove 6 is provided through the back of the assembly tank 5, and a first hydraulic rod 4 is provided on one side of the through groove 6. The transmission mechanism 2 and the superposition mechanism 3 are connected to a platform 10; the superposition mechanism 3 includes two clamping seats 307, and the two clamping seats 307 are connected to the bottom plate 9. 07 is used to clamp and fix the battery block. A third hydraulic rod 309 is connected between the two clamping seats 307, and a second cross plate 310 is connected to the same side of the two clamping seats 307. The top of each clamping seat 307 is fixedly connected to a second slider 306, and the second slider 306 is movably connected to the second linear drive rail 305. The top of each second linear drive rail 305 is fixedly connected to a slot 304, and the slot 304 is movably connected to the bottom end of the screw rod 302 through a clamping block 303, and the screw rod 302 is externally connected to a screw rod lifter 301, and the screw rod lifter 301 The top of the platform 10 is fixed, and a side limit plate 308 is fixedly connected to the inner wall of one side of the clamping seat 307, and a bottom limit plate 314 is movably provided at the bottom of the clamping seat 307. In the assembly groove 5, the first linear driving slide rail 7 drives the first slider 8 and the bottom plate 9 to move from top to bottom, and the height of the topmost battery block can be stably maintained to adapt to the operation of the stacking mechanism 3. In the stacking mechanism 3, the clamping force between the two clamping seats 307 is first provided by the third hydraulic rod 309 to clamp the battery block longitudinally transmitted through the transmission mechanism 2, and then the screw rod 3 is slowly driven by the screw rod lifter 301. 02 moves downward, and drives the second linear drive rail 305 to press down slowly through the clamping structure of the clamping block 303 and the clamping slot 304. During the pressing process, the second linear drive rail 305 drives the second slider 306 to move back and forth in a short distance to realize the curved movement of the clamping seat 307, thereby driving the battery block to move in a curved manner and press it on the top of the bottom battery block. In this process, the glue on the adhesion surface can be expanded through translation to achieve uniform distribution of glue at the bonding position. At the same time, the transfer path is shortened through the transmission of the transmission mechanism 2 to reduce the probability of the glue being affected by wind. The combination of the two can effectively ensure the tightness of the battery connection.

[0024] Reference Figure 3In a preferred embodiment, one end of the second cross plate 310 is fixed on one of the clamping seats 307, and a second slide groove 311 is provided on one side of the second cross plate 310, a third slider 312 is movably connected in the second slide groove 311, and the third slider 312 is fixed on the other clamping seat 307. The structure in which the third slider 312 is clamped in the second slide groove 311 can prevent the second cross plate 310 from providing reverse movement to the clamping seat 307 during the clamping process, thereby ensuring the stability of the clamping.

[0025] Reference Figure 4 In a preferred embodiment, a groove is provided at the bottom end of each clamping seat 307, and a bottom limit plate 314 is movably connected in the groove, one end of the bottom limit plate 314 is fixedly connected to a fourth hydraulic rod 313, and one end of the fourth hydraulic rod 313 is connected to the inner wall of the groove, and the bottom limit plate 314 is driven to move by the fourth hydraulic rod 313, and the bottom limit plate 314 can be withdrawn after stable clamping to ensure the fit between two adjacent battery blocks and the operation of the stacking mechanism 3.

[0026] Reference Figure 5 In a preferred embodiment, the correction mechanism 1 includes a side support shell 103, and the side support shell 103 is fixedly connected to one side outer wall of the assembly groove 5, and a first slide groove 104 is hung through the middle section of the side support shell 103.

[0027] Reference Figure 5 In a preferred embodiment, a circular support plate 106 is movably clamped in the first slide groove 104, and an arc support plate 107 is fixedly connected to an outer wall of one side of the circular support plate 106, and the inner wall of the arc support plate 107 is in contact with the outer wall of the side support shell 103.

[0028] Reference Figure 5In a preferred embodiment, the bottom end of the circular support plate 106 is connected to a first motor 105, and the first motor 105 is arranged in the side support shell 103. One end of the arc support plate 107 is fixedly connected to a pressing plate 102, and a second hydraulic rod 101 is arranged on one side of the pressing plate 102. The correction mechanism 1 mainly pushes one side of the multiple battery blocks through the pressing plate 102 after the multiple battery blocks are stacked in the assembly groove 5, so as to correct the multiple battery blocks based on the position of the inner wall of the assembly groove 5 to ensure the stacking of the battery blocks. During the process of uniformity, the circular support plate 106 is driven to rotate by the first motor 105 to make the arc support plate 107 rotate in contact with the outer wall of the side support shell 103 until the pressure plate 102 is pressed on the opening of the assembly groove 5, and then the second hydraulic rod 101 is stretched to push one end of the pressure plate 102 to be pressed on one side of the outer wall of the assembly groove 5, thereby the battery block can be pushed synchronously to achieve the correction effect, and conversely, the first motor 105 is reversed to drive the pressure plate 102 to open, thereby facilitating the first hydraulic rod 4 to push and unload the material.

[0029] Reference Figure 6 In a preferred embodiment, the transfer mechanism 2 includes two landing gears 201, and a slot 202 is provided between the two landing gears 201, the two landing gears 201 are fixed on the platform 10 at the same time, one side of the two landing gears 201 is fixedly connected with a side extension plate 211, and the same side of the two landing gears 201 is connected with a first cross plate 212 at the same time.

[0030] Reference Figure 6 In a preferred embodiment, a plurality of through holes 203 are provided on the side extension plate 211 and the landing gear 201, and a flapping plate 210 is provided between the two side extension plates 211, one end of the flapping plate 210 is fixedly connected to a support rod 209, and the top end of the support rod 209 is fixedly connected to a second gear 206.

[0031] Reference Figure 6In a preferred embodiment, a toothless groove 207 is provided on one side of the second gear 206, a torsion spring 208 is fixedly connected to one side of the support rod 209, and one end of the torsion spring 208 is fixed to the top of the platform 10, and a first gear 204 is meshed with one side of the second gear 206, and a second motor 205 is fixedly connected to the bottom end of the first gear 204. When the glue coating device places the battery block with glue on the top of the landing frame 201, the battery block adheres to the inner wall of the landing frame 201 and falls into the assembly groove 5. During the process, the first gear 204 is driven to rotate by the second motor 205, and then the battery block is driven to rotate by the second motor 205. The meshing of the second gear 206 drives the second gear 206 to rotate. When the meshing position rotates to the position of the toothless groove 207, the support rod 209 is driven to rotate quickly under the action of the torsion spring 208 until it meshes with the first gear 204 again, thereby driving the support rod 209 to reciprocate on both sides, and driving the flapping plate 210 to flap the inner wall of the side extension plate 211 respectively. At the same time, based on the effect of amplifying the vibration of the perforation 203, the vibration is guided by the side extension plate 211 to simulate the effect of flapping the landing gear 201, so as to avoid the battery block being blocked in the landing gear 201 under the action of friction, so as to ensure its smooth falling.

[0032] Working principle: In the assembly slot 5, the first linear driving rail 7 drives the first slider 8 and the bottom plate 9 to move from top to bottom, which can stably maintain the height of the topmost battery block to adapt to the operation of the stacking mechanism 3. In the stacking mechanism 3, the third hydraulic rod 309 first provides the clamping force between the two clamping seats 307 to clamp the battery block longitudinally transmitted through the transmission mechanism 2, and then the screw rod 302 is slowly driven downward by the screw rod lifter 301, and the second clamping block 303 and the clamping structure of the clamping slot 304 are used to drive the second clamping seat 307 to move downward. The linear drive rail 305 is pressed down slowly, and during the pressing process, the second linear drive rail 305 drives the second slider 306 to reciprocate in a short distance to realize the curved movement of the clamping seat 307, thereby driving the battery block to move in a curved manner and press on the top of the bottom battery block. In this process, the glue on the adhesion surface can be expanded through translation, thereby achieving uniform distribution of glue at the bonding position, and at the same time, the transfer path is shortened through the transmission of the transmission mechanism 2 to reduce the probability of the glue being affected by wind. The combination of the two can effectively ensure the tightness of the battery connection.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium-ion battery assembly production line, comprising an assembly tank (5), a transfer mechanism (2), a stacking mechanism (3) and a correction mechanism (1), characterized in that: The transmission mechanism (2) is used to establish a connection between the assembly groove (5) and the glue coating device. The inner walls of the assembly groove (5) on opposite sides are respectively provided with linear drive slide grooves (7), and the linear drive slide groove (7) is connected to a bottom plate (9) through a first slider (8). A plurality of battery blocks are stacked on the top of the bottom plate (9). The back of the assembly groove (5) is provided with a through groove (6), and a first hydraulic rod (4) is provided on one side of the through groove (6). The transmission mechanism (2) and the superposition mechanism (3) are connected to the platform (10); The folding mechanism (3) comprises two clamping seats (307), and the two clamping seats (307) are used to clamp and fix the battery block, a third hydraulic rod (309) is connected between the two clamping seats (307), and a second horizontal plate (310) is connected to the same side of the two clamping seats (307), and the top of each clamping seat (307) is fixedly connected to a second slider (306), and the second slider (306) is movably connected to the second linear drive slide rail (305), and each second linear The top ends of the line-driven slide rails (305) are respectively fixedly connected with slots (304), the slots (304) are movably connected with the bottom ends of the screw rods (302) via the snap-in blocks (303), and the screw rods (302) are externally connected with a screw rod lifter (301), the screw rod lifter (301) is fixed to the top end of the platform (10), one side inner wall of one of the clamping seats (307) is fixedly connected with a side limit plate (308), and the bottom end of the clamping seat (307) is movably provided with a bottom limit plate (314).

2. A lithium-ion battery assembly production line according to claim 1, characterized in that: One end of the second transverse plate (310) is fixed on one of the clamping seats (307), and a second slide groove (311) is provided through one side of the second transverse plate (310), a third slider (312) is movably connected in the second slide groove (311), and the third slider (312) is fixed on the other clamping seat (307).

3. A lithium-ion battery assembly production line according to claim 2, characterized in that: A groove is provided at the bottom end of each clamping seat (307), and a bottom limit plate (314) is movably connected in the groove, one end of the bottom limit plate (314) is fixedly connected to a fourth hydraulic rod (313), and one end of the fourth hydraulic rod (313) is connected to the inner wall of the groove.

4. A lithium-ion battery assembly production line according to claim 1, characterized in that: The correction mechanism (1) comprises a side support shell (103), and the side support shell (103) is fixedly connected to a side outer wall of the assembly groove (5), and a first slide groove (104) is hung and penetrated in the middle section of the side support shell (103).

5. A lithium-ion battery assembly production line according to claim 4, characterized in that: A circular support plate (106) is movably clamped in the first sliding groove (104), and a curved support plate (107) is fixedly connected to an outer wall of one side of the circular support plate (106), and an inner wall of the curved support plate (107) is in contact with an outer wall of the side support shell (103).

6. A lithium-ion battery assembly production line according to claim 5, characterized in that: The bottom end of the circular support plate (106) is connected to a first motor (105), and the first motor (105) is arranged in the side support shell (103); one end of the arc support plate (107) is fixedly connected to a pressure plate (102), and a second hydraulic rod (101) is arranged on one side of the pressure plate (102).

7. A lithium-ion battery assembly production line according to claim 1, characterized in that: The transfer mechanism (2) comprises two landing gears (201), and a notch (202) is provided between the two landing gears (201). The two landing gears (201) are simultaneously fixed on the platform (10), one side of the two landing gears (201) is respectively fixedly connected to a side extension plate (211), and the same side of the two landing gears (201) is simultaneously connected to a first transverse plate (212).

8. A lithium-ion battery assembly production line according to claim 7, characterized in that: The side extension plate (211) and the landing gear (201) are provided with a plurality of through holes (203) at the same time, and a flapping plate (210) is provided between the two side extension plates (211), one end of the flapping plate (210) is fixedly connected to a support rod (209), and the top end of the support rod (209) is fixedly connected to a second gear (206).

9. A lithium-ion battery assembly production line according to claim 8, characterized in that: A toothless groove (207) is provided on one side of the second gear (206); a torsion spring (208) is fixedly connected to one side of the support rod (209), and one end of the torsion spring (208) is fixed to the top of the platform (10); a first gear (204) is meshed with one side of the second gear (206), and a second motor (205) is fixedly connected to the bottom end of the first gear (204).

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