Automatic stacking mounting lifting device for battery pack

Abstract

The present invention relates to the technical field of battery pack production, and disclosed is an automatic stacking mounting lifting device for a battery pack, comprising a frame body, a feeding apparatus, a stacking apparatus, and a transfer apparatus. The feeding apparatus comprises a feeding moving mechanism and a feeding clamping mechanism. The stacking apparatus comprises a stacking moving mechanism, a first carrier frame, second carrier frames, and a stacking positioning mechanism, each second carrier frame is provided with an x-axis positioning assembly, and the x-axis positioning assembly comprises a fixed plate, a first driving member, and a first positioning plate. The stacking positioning mechanism comprises second positioning plates and second driving members, and the second driving members are used for driving the second positioning plates to move close to or away from the second carrier frames. The transfer apparatus comprises a transfer moving mechanism and a transfer clamping mechanism. The present application enables battery cells to be less prone to positional deviation during stacking, thereby ensuring the assembly stacking quality of the battery cells.

Description

Automated stacking and lifting equipment for battery packs Technical Field

[0001] This invention relates to the field of battery pack manufacturing, and in particular to an automated stacking and lifting device for battery packs. Background Technology

[0002] A battery pack is an energy storage device that integrates multiple battery cells. In the manufacturing process, multiple rectangular cells are typically assembled and stacked in a specific order and manner. This step not only increases the energy storage capacity of the battery pack but also comprehensively improves its overall performance to meet the diverse needs of different application scenarios. Through precise assembly and stacking, the battery pack forms a battery structure with specific shape, size, and performance, thus better adapting to the usage requirements of various electronic devices or vehicles. After the battery pack is assembled and stacked, it usually needs to be clamped and transported for subsequent processing and handling.

[0003] Equipment for assembling and stacking individual cells of a battery pack and for clamping and transporting the assembled and stacked battery pack, i.e., the formed battery pack, typically includes a feeding device, a stacking device, and a transport device. The feeding device is used to clamp and feed individual cells into the stacking device for assembly and stacking, and the resulting battery pack is transported by the transport device.

[0004] Regarding the aforementioned technologies, during the process of the feeding device sequentially feeding individual battery cells into the stacking device, the battery cells are prone to positional shifts due to feeding errors, which cannot guarantee the assembly and stacking quality of the battery cells. Summary of the Invention

[0005] To prevent cell displacement during stacking and ensure the quality of cell assembly and stacking, this application provides an automated stacking and lifting device for battery packs.

[0006] This application provides an automated stacking and lifting device for battery packs, comprising a frame, a feeding device, a stacking device, and a transfer device. The feeding device includes a feeding moving mechanism and a feeding clamping mechanism. The feeding clamping mechanism is used to clamp the battery cells to be stacked. The feeding moving mechanism is disposed on the frame and is used to drive the feeding clamping mechanism to move in horizontal and vertical directions. The stacking device includes a stacking moving mechanism, a first support frame, a second support frame disposed on top of the first support frame, and a stacking positioning mechanism. The stacking moving mechanism is disposed on the frame and is used to drive the first support frame to move in the x-axis direction. The second support frame is provided with an x-axis positioning component, which includes a fixing plate and a first drive mechanism. The device includes a first positioning plate and a fixed plate, which are fixedly mounted on a second support frame. The first positioning plate and the fixed plate are directly opposite each other along the x-axis. The first driving member is used to drive the first positioning plate to move towards or away from the fixed plate. The stacking positioning mechanism includes a second positioning plate and a second driving member. Two second positioning plates are provided and are respectively located on both sides of the second support frame along the y-axis. The second driving member is used to drive the second positioning plate to move towards or away from the second support frame. The transfer device includes a transfer moving mechanism and a transfer clamping mechanism. The transfer clamping mechanism is used to clamp the stacked battery pack. The transfer moving mechanism is used to drive the transfer clamping mechanism to move in the horizontal and vertical directions.

[0007] Optionally, three second support frames are distributed along the y-axis direction. These three second support frames are all located between two second positioning plates. The second support frame located in the middle of the first support frame is fixedly installed on the first support frame. The second support frames located on both sides of the first support frame along the y-axis direction slide and cooperate with the first support frame along the y-axis direction. The first support frame is provided with a movable component for moving the second support frames located on both sides of the first support frame along the y-axis direction closer to or further away from each other.

[0008] The arrangement of three second carriers facilitates the simultaneous carrying of more cells to be stacked, which helps to further ensure the production efficiency of the battery pack. After the three second carriers carry the cells, the second carriers located on both sides of the first carrier along the y-axis are driven by the movable components to move closer to each other. This, combined with the movement of the two second positioning plates, facilitates the stable positioning of each cell after stacking, thereby fully ensuring the assembly and stacking quality of each cell.

[0009] Optionally, the feeding clamping mechanism includes a clamping seat, a first cylinder, a drive block, grippers, and a reset component. The first cylinder is mounted on the clamping seat and is used to drive the drive block to move in the vertical direction. Two grippers are arranged opposite each other, and both grippers are rotatably mounted on the clamping seat. The drive block has two abutment surfaces, and one end of each of the two grippers abuts against the two abutment surfaces respectively. The reset component is disposed on the clamping seat and is used to move the two grippers away from each other. When the drive block moves in the vertical direction, the ends of the two grippers away from the abutment surfaces move closer to or further away from each other.

[0010] By adopting the above technical solution, when clamping and conveying a single battery cell, the first cylinder drives the drive block to move in the vertical direction, causing the two grippers to move closer to each other, thereby achieving stable clamping of both sides of the single battery cell, which is convenient and fast.

[0011] Optionally, the bottom of the drive block is provided with a groove, and a movable part is slidably fitted in the groove. A buffer spring is provided between the movable part and the groove. When the two grippers clamp the two sides of a single cell, the movable part presses against the top of the single cell.

[0012] By adopting the above technical solution, when the two grippers hold a single battery cell, the moving part presses against the top of the single battery cell, making it less likely for the single battery cell to tilt or shake during clamping, thus further ensuring the clamping stability of the single battery cell.

[0013] Optionally, the feeding moving mechanism includes a feeding x-axis linear motion module, a feeding y-axis linear motion module, a feeding z-axis linear motion module, and a rotating assembly. The feeding x-axis linear motion module is mounted on the frame and is used to drive the feeding y-axis linear motion module to move along the x-axis direction. The feeding y-axis linear motion module is used to drive the feeding z-axis linear motion module to move along the y-axis direction. The feeding rotating assembly includes a motor, a worm gear, and a worm wheel. A rotating rod is fixedly mounted on the clamping seat. The rotating rod is rotatably mounted on the slider of the feeding z-axis linear motion module around the x-axis. The worm wheel is coaxially fixed to the rotating rod. The worm gear is rotatably mounted on the slider of the feeding z-axis linear motion module and meshes with the worm wheel. The motor is used to drive the rotation.

[0014] By adopting the above technical solution, when the motor drives the worm to rotate, the worm wheel drives the rotating rod and the clamping seat to rotate together in the x-axis direction, thereby providing space for vertical clearance between the individual battery cells and other components when they are transported to the second support frame, making it suitable for more compact spaces. In addition, the self-locking effect between the worm and the worm wheel helps to ensure the stability of the clamping seat after rotation.

[0015] Optionally, the transfer clamping mechanism includes a clamping base, a first clamping plate, a second clamping plate, a first clamping drive assembly, and a second clamping drive assembly. Two first clamping plates are arranged facing each other along the x-axis. The first clamping drive assembly is disposed on the clamping base and is used to drive the two first clamping plates to move closer to or further away from each other. Two second clamping plates are arranged facing each other along the y-axis. The second clamping drive assembly is disposed on the clamping base and is used to drive the two second clamping plates to move closer to or further away from each other. Positioning protrusions are fixedly installed on the near side of both the fixed plate and the first positioning plate. The bottom of the first clamping plate is provided with clearance grooves corresponding to the positioning protrusions. The positioning protrusions are respectively inserted into the clearance grooves.

[0016] By adopting the above technical solution, the first clamping drive component drives the two first clamping plates to move closer to each other, and the second clamping drive component drives the two second clamping plates to move closer to each other, which can achieve stable clamping of the stacked battery cells, which is convenient and fast.

[0017] Optionally, the transfer mechanism includes a horizontal transfer component and a vertical transfer component. The vertical transfer component includes a vertical transfer base, an electric hoist, and a vertical transfer guide rod. The vertical transfer guide rod is fixedly installed on the top of the clamping base, passes through the vertical transfer base, and slides in cooperation with the vertical transfer base. The electric hoist is installed on the vertical transfer base, and the steel cable of the electric hoist is fixedly installed on the clamping base.

[0018] By adopting the above technical solution, when the electric hoist drives its own steel cable to wind up, the clamping and fixing seat moves stably in the vertical direction under the limiting action of the vertical transfer guide rod. The electric hoist's design makes the vertical movement of the clamping and fixing seat highly automated, convenient and fast.

[0019] Optionally, the vertical transfer fixing base is provided with guide rollers, which roll in cooperation with the side wall of the vertical transfer guide rod. Each end of the guide roller has a mounting guide groove, and a mounting guide rod slides within the mounting guide groove. The guide roller is provided with a mounting spring that drives the mounting guide rod to move away from the guide roller. The vertical transfer fixing base is equipped with mounting guide seats that correspond one-to-one with the guide rollers. Each mounting guide seat has two mounting holes that engage with the mounting guide rods. When the two mounting guide rods of the guide rollers are inserted into the two mounting holes, the guide rollers are mounted on the vertical transfer fixing base.

[0020] By adopting the above technical solution, the guide rollers help reduce the friction between the vertical transfer guide rod and the vertical transfer fixed seat during the vertical movement, allowing the vertical transfer guide rod to move more smoothly in a straight line, which is beneficial to improving the motion accuracy and response speed of the equipment. At the same time, pressing the installation guide rods allows them to be stored in the installation guide grooves. When the two installation guide rods are aligned with the two installation holes, the two installation guide rods are automatically inserted into the two installation holes under the elastic force of the installation springs, making the installation and fixing of the guide rollers simple, convenient and quick.

[0021] Optionally, the mounting guide is provided with two pushing components corresponding to the two mounting holes. Each pushing component includes a pushing rod and a pushing spring. The pushing rod slides into the mounting hole, and the pushing spring is used to move the pushing rod away from the mounting guide. A pushing limit rod is fixedly installed on the pushing rod, and the pushing spring is sleeved outside the pushing limit rod. When the pushing limit rod abuts against the mounting guide, the mounting guide is retracted into the mounting guide groove.

[0022] By adopting the above technical solution, when it is necessary to disassemble the guide roller for inspection and maintenance, the guide roller can be disassembled by pressing the push rod to push the mounting guide rod into the mounting guide groove. The setting of the push limit rod ensures the stability of the push spring force on the one hand, and limits the push rod on the other hand, so that the push rod can move quickly to the position when the limit on the guide roller is released.

[0023] Optionally, the clamping and fixing base includes a fixing member and a clamping member. The fixing member is provided with a pressure lifting assembly, which is used to drive the clamping member to lift. The bottom of the clamping member is provided with a plurality of pneumatic suction cups arranged in a rectangular array. The clamping member is provided with an adjustment assembly that corresponds one-to-one with the pneumatic suction cups.

[0024] The adjustment assembly includes a suction cup fixing block, a suction cup unlocking block, and a suction cup spring. The suction cup fixing block is fixed to the clamping member and has several elastic suction cup clamping parts distributed circumferentially. The suction cup unlocking block is slidably engaged with the suction cup fixing block. The suction cup spring applies a spring force to the suction cup unlocking block, causing it to move toward the suction cup clamping parts. The pneumatic suction cup passes through and is slidably engaged with the clamping member, the suction cup fixing block, and the suction cup unlocking block in sequence. In normal operation, the suction cup clamping parts clamp and fix the pneumatic suction cup. When the suction cup spring contracts, the suction cup fixing block moves away from the suction cup clamping parts, and the suction cup clamping parts move away from the pneumatic suction cup due to their own elasticity.

[0025] By adopting the above technical solution, the pneumatic suction cup set on the clamping component can provide a stronger adsorption force for the stacked cells, i.e., the battery pack, during the clamping and transportation process, which is conducive to further ensuring the stability of the formed battery pack during transportation. Moreover, by pressing the suction cup fixing block to extend and retract the suction cup spring, the suction cup clamping part can clamp or release the pneumatic suction cup, thereby facilitating the rapid adjustment of the height position of the pneumatic suction cup, which can adapt to different clamping conditions and has strong applicability. Attached Figure Description

[0026] Figure 1 is a schematic diagram of the overall structure of this application.

[0027] Figure 2 is a schematic diagram of the main structure of the feeding device and stacking device in this application.

[0028] Figure 3 is a magnified view of part A in Figure 2.

[0029] Figure 4 is a partial cross-sectional schematic diagram of the clamping seat in this application.

[0030] Figure 5 is a schematic diagram of the main structure of the transfer device in this application.

[0031] Figure 6 is a schematic diagram of the main connection relationship between the clamping component and the pneumatic suction cup in this application.

[0032] Figure 7 is a magnified view of part B in Figure 6.

[0033] Figure 8 is a schematic diagram of the connection relationship between the guide roller and the guide sleeve in this application.

[0034] Figure 9 is a partially enlarged schematic diagram of part C in Figure 8.

[0035] Figure 10 is a schematic diagram of the main structure of the horizontal transfer component in this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Loading x-axis linear motion module; 3. Loading y-axis linear motion module; 4. Loading z-axis linear motion module; 5. Clamping seat; 6. First cylinder; 7. Drive block; 8. Gripper; 9. Abutment surface; 10. Return spring; 11. Groove; 12. Moving part; 13. Buffer spring; 14. Loading rotating rod; 15. Motor; 16. Worm gear; 17. Worm wheel; 181. First support frame; 182. Second support frame; 19. Stacked x-axis linear motion module; 20. Second cylinder; 21. Bearing motion guide rail; 22. Fixing plate; 23. Drive electric cylinder; 24. First positioning plate; 251. Second positioning plate; 252. Third cylinder; 26. Clamping fixing seat; 261. Fixing component; 262. Clamping component; 27. First clamping plate; 28. Second clamping plate; 29. ​​Pressing electric cylinder; 30. Pressing guide rod; 31. Pneumatic suction cup; 32. Clamping mounting hole; 33. Suction cup 34. Mounting block; 341. Suction cup fixing block; 342. Inner cylinder; 343. Outer cylinder; 35. Suction cup unlocking block; 36. Suction cup spring; 37. Suction cup clamping part; 38. Sliding unlocking groove; 39. Sliding unlocking rod; 40. Guide surface; 41. First double-acting screw; 42. First guide rod; 43. First handwheel; 44. Positioning protrusion; 45. Clearance groove; 46. Second double-acting screw; 47. Second guide rod; 48. Second handwheel; 49. Vertical rotation 491. Vertical transfer fixing part; 492. Guide sleeve; 50. Electric hoist; 51. Vertical transfer guide rod; 52. Guide roller; 53. Through hole; 54. Mounting guide groove; 55. Mounting guide rod; 56. Mounting spring; 57. Mounting guide seat; 58. Mounting insertion hole; 59. Push rod; 60. Push spring; 61. Drive rod; 62. Push limit rod; 63. Horizontal guide rail; 64. Horizontal slider; 65. Horizontal roller. Detailed Implementation

[0037] The present application will be further described in detail below with reference to Figures 1-10.

[0038] This application discloses an automated battery pack stacking and lifting device. Referring to FIG1, the automated battery pack stacking and lifting device includes a frame 1, a feeding device, a stacking device, and a transfer device. The feeding device includes a feeding moving mechanism and a feeding clamping mechanism. The feeding moving mechanism is disposed on the frame 1 and is used to drive the feeding clamping mechanism to move in the horizontal and vertical directions.

[0039] Referring to Figures 1 and 2, specifically, the feeding moving mechanism includes a feeding x-axis linear motion module 2, a feeding y-axis linear motion module 3, a feeding z-axis linear motion module 4, and a feeding rotating assembly, all horizontally mounted on the frame 1. In this embodiment, the feeding x-axis linear motion module 2 is positioned in the x-axis direction, and the direction perpendicular to the feeding x-axis linear motion module 2 is positioned in the y-axis direction. The feeding y-axis linear motion module 3 is fixedly mounted on the slider of the feeding x-axis linear motion module 2, and the feeding z-axis linear motion module 4 is vertically mounted on the slider of the feeding y-axis linear motion module 3. The feeding clamping mechanism is disposed on the slider of the feeding z-axis linear motion module 4 to realize the movement of the feeding clamping mechanism along the x-axis, y-axis, and z-axis directions.

[0040] Referring to Figures 2 and 3, the feeding and clamping mechanism is used to clamp the battery cells to be stacked. Specifically, the feeding and clamping mechanism includes a clamping base 5, a first cylinder 6, a drive block 7, grippers 8, and a reset component. Two grippers 8 are arranged facing each other, and both grippers 8 are rotatably mounted on the clamping base 5. The drive block 7 slides vertically against the clamping base 5, and the first cylinder 6 is vertically mounted on the clamping base 5 and is used to drive the drive block 7 to move vertically. The drive block 7 has two abutment surfaces 9, and the tops of the two grippers 8 respectively abut against the two abutment surfaces 9. When the drive block 7 moves downwards vertically, the bottom ends of the two grippers 8 move closer to each other, thereby achieving clamping and fixing of a single battery cell.

[0041] Referring to Figures 3 and 4, the reset component includes a reset spring 10, with two reset springs 10 corresponding to the grippers 8. One end of each reset spring 10 is fixedly mounted on the side of the two grippers 8 furthest from each other, and the other end is fixedly mounted on the clamping base 5. The two reset springs 10 are positioned close to the top of the grippers 8 so that the bottom ends of the two grippers 8 move away from each other under the elastic force of the reset springs 10, thereby resetting the grippers 8.

[0042] Referring again to Figures 3 and 4, to further ensure the stability of the grippers 8 in holding a single battery cell, a groove 11 is provided at the bottom of the drive block 7. A buffer spring 13 is installed in the groove 11, and a movable part 12 is slidably fitted therein. One end of the buffer spring 13 is installed at the bottom of the groove 11, and the other end is installed on the movable part 12. When the two grippers 8 clamp the two sides of a single battery cell, the movable part 12 is pressed against the top of the single battery cell by the elastic force of the buffer spring 13 to ensure the positional stability of the clamped single battery cell.

[0043] Referring to Figures 2 and 3, a horizontally arranged rotating rod 14 is fixedly mounted on the clamping base 5. The rotating rod 14 is rotatably mounted on the slider of the z-axis linear motion module along the x-axis direction. The feeding rotation assembly includes a motor 15, a worm gear 16, and a worm wheel 17. The worm wheel 17 is coaxially fixed to the rotating rod 14. The worm gear 16 is rotatably mounted on the slider of the z-axis linear motion module and meshes with the worm wheel 17. The motor 15 is mounted on the slider of the z-axis linear motion module and is used to drive the worm gear 16 to rotate. The motor 15 ultimately realizes the rotation of the clamping base 5 around the x-axis, thereby reducing the vertical clearance space between a single battery cell and other components during transportation, making it suitable for more compact spaces.

[0044] Referring to Figure 2, the stacking device includes a stacking moving mechanism, a first support frame 181, a second support frame 182, and a stacking positioning mechanism. The stacking moving mechanism includes a stacking x-axis linear motion module 19 that is horizontally arranged on the frame 1 and arranged along the x-axis direction. The first support frame 181 is fixed to the slider of the stacking x-axis linear motion module 19 so that the first support frame 181 can be driven to move along the x-axis direction by the stacking moving mechanism.

[0045] Referring to Figures 2 and 3, a second support frame 182 is disposed on top of a first support frame 181. Three second support frames 182 are distributed along the y-axis. The second support frame 182 disposed in the middle of the first support frame 181 is fixedly installed on the first support frame 181. The second support frames 182 disposed on both sides of the first support frame 181 along the y-axis are slidably engaged with the first support frame 181 along the y-axis. The first support frame 181 is provided with a movable component, which includes a second cylinder 20 and a motion guide rod 21. The motion guide rod is fixed to the top of the first support frame 181 and slidably engages with the two second support frames 182 disposed on both sides of the first support frame 181 along the y-axis. The cylinder body of the second cylinder 20 is fixed to the second support frame 182 located on one side of the first support frame 181y axis, while the piston rod is fixed to the second support frame 182 located on the other side of the first support frame 181y axis, so that when the piston rod of the second cylinder 20 moves, it drives the two second support frames 182 located on both sides of the first support frame 181y axis to move closer to or further away from each other.

[0046] Referring to Figures 1 and 2, each second support frame 182 is provided with an x-axis positioning assembly, which includes a fixing plate 22, a first driving member, and a first positioning plate 24. The fixing plate 22 is fixedly installed on the top of the second support frame 182, and the first positioning plate 24 is disposed opposite to the fixing plate 22 in the x-axis direction. The first driving member includes a driving cylinder 23 disposed along the x-axis direction on the second support frame 182. The first positioning plate 24 is fixed on the output shaft of the driving cylinder 23 to drive the first positioning plate to move closer to or away from the fixing plate 22, thereby realizing the positioning of the stacked cells in the x-axis direction.

[0047] Referring to Figures 2 and 4, the stacking positioning mechanism includes a second positioning plate 251 and a second driving member. Two second positioning plates 251 are provided and located on both sides of the first support frame 181 along the y-axis direction, and each second support frame 182 is located between two second positioning plates 251. The second driving member includes two third cylinders 252, which are provided and located on both sides of the first support frame 181 along the y-axis direction. The two second positioning plates 251 are fixedly installed at the output ends of the two third cylinders 252, so that the two second positioning plates 251 are driven by the two third cylinders to move closer to or further away from the second support frame 182, thereby achieving positioning of the stacked cells along the y-axis direction.

[0048] Referring to Figure 5, the transfer device includes a transfer moving mechanism and a transfer clamping mechanism. The transfer clamping mechanism includes a clamping fixing seat 26, a first clamping plate 27, a second clamping plate 28, a first clamping drive assembly, and a second clamping drive assembly. The clamping fixing seat 26 includes a fixing member 261 and a rectangular clamping member 262. The fixing member 261 is provided with a lifting assembly, which includes a clamping electric cylinder 29 vertically mounted on the fixing member 261. The clamping member 262 is fixed to the output shaft of the electric cylinder so that the clamping member 262 is driven to move vertically through the clamping electric cylinder 29. To further ensure the stability of the clamping member 262 when moving vertically, four rectangularly distributed clamping guide rods 30 are fixedly connected to the top of the clamping member 262, and each clamping guide rod 30 is slidably engaged with the fixing member 261.

[0049] Referring to Figures 6 and 7, the bottom of the clamping member 262 is provided with several pneumatic suction cups 31 arranged in a rectangular array to further ensure the stability of the molded battery pack during clamping and transfer. Specifically, the clamping member 262 has a through hole 32, and the suction cup mounting block 33 is bolted into the through hole 32. Both the through hole 32 and the suction cup mounting block 33 have a T-shaped cross-section to facilitate quick fixing of the suction cup mounting block 33 into the through hole 32. Each pneumatic suction cup 31 is installed on its respective suction cup mounting block 33 to enable inspection and maintenance of the pneumatic suction cup 31.

[0050] Referring to Figure 7, in order to fine-tune the height position of the pneumatic suction cup 31 and thus adapt to the clamping conditions of different battery packs, the suction cup mounting block 33 is provided with an adjustment component. This adjustment component includes a suction cup fixing block 34, a suction cup unlocking block 35, and a suction cup spring 36. The suction cup fixing block 34 is fixed to the suction cup mounting block 33. The suction cup fixing block 34 includes an inner cylinder 341 and an outer cylinder 342. The inner cylinder 341 is fixedly provided with a plurality of elastic suction cup clamping parts 37 evenly distributed along its circumference. The side of each suction cup clamping part 37 away from the suction cup fixing block 34 is wedge-shaped.

[0051] Referring again to Figure 7, the outer cylinder 342 has an unlocking groove 38 extending vertically. The suction cup unlocking block 35 slides between the inner cylinder 341 and the outer cylinder 342. A sliding unlocking rod 39 is fixedly installed on the suction cup unlocking block 35, and the sliding unlocking rod 39 slides in the unlocking groove 38. One end of the suction cup spring 36 is connected to the bottom of the suction cup unlocking block 35, and the other end is connected to the outer cylinder 342, thereby applying a spring force to the suction cup unlocking block 35 to stabilize its movement toward the suction cup clamping part 37. A guide surface 40 is provided on one end of the suction cup unlocking block 35 facing the suction cup clamping part 37. The pneumatic suction cup 31 passes through and slides in sequence with the suction cup mounting block 33, the suction cup fixing block 34, and the suction cup unlocking block 35.

[0052] Under normal conditions, the guide surface 40 presses against each suction cup clamping part 37 under the elastic force of the suction cup spring 36, thus clamping and fixing the pneumatic suction cup 31. When the sliding unlocking lever 39 is pressed, causing the suction cup spring 36 to retract, the suction cup fixing block 34 moves away from the suction cup clamping part 37, causing the suction cup clamping part 37 to move away from the pneumatic suction cup 31 due to its own elastic force, that is, releasing the clamping of the pneumatic suction cup 31. This allows for rapid adjustment of the height position of the pneumatic suction cup 31, making it easy to adapt to different clamping conditions and highly applicable.

[0053] Referring to Figure 5, two first clamping plates 27 are arranged opposite each other along the x-axis. A first clamping drive assembly is disposed on the clamping fixing base 26 and is used to drive the two first clamping plates 27 to move closer or further apart, thereby clamping or releasing the molded battery pack. Specifically, the first clamping drive assembly includes a first bidirectional lead screw 41 and a first guide rod 42. The first bidirectional lead screw 41 is arranged along the x-axis and rotatably mounted on the fixing member 261 of the clamping fixing base 26. The two ends of the first bidirectional lead screw 41 with opposite thread directions are respectively threaded into the two first clamping plates 27. The first guide rod 42 is fixedly mounted on the fixing member 261 and parallel to the first bidirectional lead screw 41. The first guide rod 42 slides with the two first clamping plates 27 so that when the first bidirectional lead screw 41 rotates, the two first clamping plates 27 move closer or further apart along the x-axis under the limiting action of the first guide rod 42. To realize the rotation of the first bidirectional lead screw 41, a first handwheel 43 is fixedly connected to one end of the first bidirectional lead screw 41.

[0054] Referring to Figures 2 and 5, positioning protrusions 44 are fixedly installed on the side of the fixed plate 22 and the first positioning plate 24 that are close to each other. The bottom of the two first clamping plates 27 is provided with relief grooves 45 that correspond one-to-one with the positioning protrusions 44. Each positioning protrusion 44 is inserted into each relief groove 45 so that the stacked battery cells can avoid the original clamping parts under the clamping action of the second support frame 182, which helps to fully ensure the stability of the stacked battery cells during transport and clamping.

[0055] Referring to Figure 5, the second clamping drive assembly includes a second bidirectional lead screw 46 and a second guide rod 47. The second bidirectional lead screw 46 is arranged along the y-axis and rotatably mounted on the fixing member 261 of the clamping fixing base 26. The two ends of the second bidirectional lead screw 46 with opposite thread directions are respectively threaded into two second clamping plates 28. The second guide rod 47 is fixedly mounted on the clamping fixing base 26 and parallel to the second bidirectional lead screw 46. The second guide rod 47 slides with the two second clamping plates 28 so that when the second bidirectional lead screw 46 rotates, the two second clamping plates 28 move closer or further apart along the y-axis under the limiting action of the second guide rod 47. To realize the rotation of the second bidirectional lead screw 46, a second handwheel 48 is fixedly connected to one end of the second bidirectional lead screw 46.

[0056] Referring to Figures 5 and 8, the transfer mechanism includes a horizontal transfer component and a vertical transfer component. The vertical transfer component includes a vertical transfer fixing seat 49, an electric hoist 50, and a vertical transfer guide rod 51. The vertical transfer fixing seat 49 includes a vertical transfer fixing part 491 and a guide sleeve 492, with the guide sleeve 492 fixedly installed at the bottom of the vertical transfer fixing part 491. The vertical transfer guide rod 51 is fixedly installed at the top of the fixing member 261 of the clamping fixing seat 26. The vertical transfer guide rod 51 passes through the vertical transfer fixing part 491 and the guide sleeve 492 in sequence and slides in cooperation with the vertical transfer fixing part 491 and the guide sleeve 492. The electric hoist 50 is installed on the vertical transfer fixing seat 49, and the steel cable of the electric hoist 50 is fixedly installed on the fixing member 261 of the clamping fixing seat 26, so that when the steel cable is raised or lowered, the clamping fixing seat 26 moves vertically stably under the limiting action of the vertical transfer guide rod 51.

[0057] Referring to Figures 5 and 9, the guide sleeve 492 has a rectangular cross-section. Guide rollers 52 are rotatably mounted on the guide sleeve 492. In this embodiment, two sets of guide rollers 52 are distributed along the length of the guide sleeve 492, with each set having three guide rollers distributed around the axis of the guide sleeve 492 and located on each side wall of the guide sleeve 492. The guide sleeve 492 has through holes 53 corresponding to each guide roller 52. Each guide roller 52 is inserted into the guide sleeve 492 through the through hole 53 and rolls against the side wall of the vertical transfer guide rod 51. This further limits the vertical transfer guide rod 51 during sliding and reduces friction when the vertical transfer guide rod 51 moves vertically, thereby further ensuring the smooth and stable lifting and lowering motion of the vertical transfer guide rod 51.

[0058] Referring to Figure 9, specifically, both ends of the guide roller 52 are provided with mounting guide grooves 54, and mounting guide rods 55 are slidably fitted in the mounting guide grooves 54. A mounting spring 56 is provided in the mounting guide grooves 54, with one end of the mounting spring 56 connected to the groove wall of the mounting guide groove 54 and the other end fixedly connected to the mounting guide rod 55, so that the mounting guide rod 55 extends out of the mounting guide groove 54 under the elastic force of the mounting spring 56.

[0059] Referring again to Figure 9, the guide sleeve 492 is equipped with mounting guide seats 57, each corresponding to a guide roller 52. Each mounting guide seat 57 has two mounting holes 58 for inserting into mounting guide rods 55. When the two mounting guide rods 55 of the guide roller 52 are inserted into the two mounting holes 58, the guide roller 52 is mounted on the guide sleeve 492. Further, the mounting guide seat 57 is provided with two pushing assemblies corresponding to the two mounting holes 58. Each pushing assembly includes a pushing rod 59 and a pushing spring 60. The pushing rod 59 slides into the mounting hole 58, and a drive rod 61 is fixedly connected to one end of the pushing rod 59 away from the guide roller 52. One end of the pushing spring 60 is fixedly connected to the mounting guide seat 57, and the other end is fixedly connected to the drive rod 61. The pushing spring 60 has a spring force that causes the pushing rod 59 to move away from the mounting guide rod 55.

[0060] Referring again to Figure 9, a push-limiting rod 62 is fixedly connected to the drive rod 61, and a push spring 60 is sleeved on the push-limiting rod 62. When the push-limiting rod 62 abuts against the mounting guide seat 57, the mounting guide rod 55 is housed in the mounting guide groove 54. The push-limiting rod 62 ensures the stability of the elastic force of the push spring 60 and facilitates the limiting of the push rod 59, allowing the push rod 59 to move quickly to the position where it releases the limit on the guide roller 52, thereby enabling quick disassembly and assembly of the guide roller 52 for rapid inspection and maintenance.

[0061] Referring to Figures 5 and 10, the horizontal transfer assembly includes two parallel horizontal guide rails 63, two horizontal sliders 64, and horizontal rollers 65. In this embodiment, the horizontal guide rails 63 are fixedly arranged along the y-axis. The two horizontal sliders 64 are slidably engaged with the two horizontal guide rails 63 and fixedly installed on both sides of the vertical transfer fixing part 491 along the x-axis. Each horizontal slider 64 is correspondingly provided with multiple horizontal rollers 65, which are rotatably mounted on the horizontal slider 64 and rollably engaged with the horizontal guide rails 63. One horizontal slider 64 is provided with a rotary motor (not shown in the figure) that drives the horizontal rollers 65 to rotate, so that when the horizontal rollers 65 rotate, the horizontal slider 64 carries the vertical transfer fixing part 491 horizontally along the x-axis.

[0062] The implementation principle of an automated stacking and lifting device for battery packs according to an embodiment of this application is as follows: When it is necessary to stack the battery cells sequentially during the production process of the battery pack, the two jaws 8 of the feeding clamping mechanism first clamp a single battery cell, and then the feeding moving mechanism drives the feeding clamping mechanism to move to the second carrier frame 182, thereby transferring the single battery cells sequentially. The stacking of the battery cells on the second carrier frame 182 can be achieved by placing the single battery cells sequentially on the second carrier frame 182.

[0063] The stacked cells are positioned along the x-axis by the first positioning plate 24 and the fixing plate 22, and along the y-axis by the two second positioning plates 251. Subsequently, the stacked cells (i.e., the battery pack) are clamped by the two first clamping plates 27 and the two second clamping plates 28 after the first support frame 181 is moved. The battery pack is then transferred by driving the transfer clamping mechanism to move horizontally and vertically. During the battery pack production process, the stacked cells can be positioned along both the x and y axes, preventing positional shifts during stacking and ensuring high-quality assembly. Furthermore, the loading of individual cells and the transfer of the battery pack can be conveniently and stably handled by the loading and transfer devices.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated stacking and lifting device for battery packs, characterized in that: It includes a frame (1), a feeding device, a stacking device and a transfer device. The feeding device includes a feeding moving mechanism and a feeding clamping mechanism. The feeding clamping mechanism is used to clamp the cells to be stacked. The feeding moving mechanism is set on the frame (1) and is used to drive the feeding clamping mechanism to move in the horizontal and vertical directions. The stacking device includes a stacking moving mechanism, a first support frame (181), a second support frame (182) disposed on the top of the first support frame (181), and a stacking positioning mechanism. The stacking moving mechanism is disposed on the frame (1) and is used to drive the first support frame (181) to move along the x-axis direction. The second support frame (182) is provided with an x-axis positioning component. The x-axis positioning component includes a fixing plate (22), a first driving member, and a first positioning plate (24). The fixing plate (22) is fixed to the second support frame (182). The first positioning plate (24) and the fixing plate (22) are arranged facing each other along the x-axis direction. The first driving member is used to drive the first positioning plate (24) to move closer to or away from the fixing plate (22). The stacking positioning mechanism includes a second positioning plate (251) and a second driving member. Two second positioning plates (251) are provided and are respectively located on both sides of the second support frame (182) along the y-axis direction. The second driving member is used to drive the second positioning plate (251) to move closer to or away from the second support frame (182). The transfer device includes a transfer moving mechanism and a transfer clamping mechanism. The transfer clamping mechanism is used to clamp the stacked battery pack, and the transfer moving mechanism is used to drive the transfer clamping mechanism to move in the horizontal and vertical directions.

2. The automated stacking and lifting equipment for battery packs according to claim 1, characterized in that: There are three second support frames (182) distributed along the y-axis direction. These three second support frames (182) are all located between the two second positioning plates (251). The second support frame (182) located in the middle of the first support frame (181) is fixedly installed on the first support frame (181). The second support frames (182) located on both sides of the first support frame (181) along the y-axis direction slide and cooperate with the first support frame (181) along the y-axis direction. The first support frame (181) is provided with a movable component for moving the second support frames (182) located on both sides of the first support frame (181) along the y-axis direction closer to or further away from each other.

3. The automated stacking and lifting equipment for battery packs according to claim 1, characterized in that: The feeding clamping mechanism includes a clamping seat (5), a first cylinder (6), a drive block (7), grippers (8), and a reset member. The first cylinder (6) is installed on the clamping seat (5) and is used to drive the drive block (7) to move in the vertical direction. There are two grippers (8) facing each other. Both grippers are rotatably installed on the clamping seat (5). The drive block (7) has two abutting surfaces (9). One end of the two grippers (8) abuts against the two abutting surfaces (9) respectively. The reset member is set on the clamping seat (5) and is used to make the two grippers (8) move away from each other. When the drive block (7) moves in the vertical direction, the ends of the two grippers (8) away from the abutting surfaces (9) move closer to each other or further away from each other.

4. The automated stacking and lifting equipment for battery packs according to claim 3, characterized in that: The drive block (7) has a groove (11) at the bottom, and a movable part (12) slides in the groove (11). A buffer spring (13) is provided between the movable part (12) and the groove (11). When the two grippers (8) are clamped on both sides of a single cell, the movable part (12) presses against the top of the single cell.

5. The automated stacking and lifting equipment for battery packs according to claim 3, characterized in that: The feeding moving mechanism includes a feeding x-axis linear motion module (2), a feeding y-axis linear motion module (3), a feeding z-axis linear motion module (4), and a feeding rotating assembly. The feeding x-axis linear motion module (2) is mounted on the frame (1) and is used to drive the feeding y-axis linear motion module (3) to move along the x-axis. The feeding y-axis linear motion module (3) is used to drive the feeding z-axis linear motion module (4) to move along the y-axis. The feeding rotating assembly includes a motor (15), a worm (16), and a worm wheel (17). The clamping seat (5) is fixedly mounted with a rotating rod (14). The rotating rod (14) is rotatably mounted on the slider of the feeding z-axis linear motion module around the x-axis. The worm wheel (17) is coaxially fixedly mounted on the rotating rod (14). The worm (16) is rotatably mounted on the slider of the feeding z-axis linear motion module and meshes with the worm wheel (17). The motor (15) is used to drive the worm (16) to rotate.

6. The automated stacking and lifting equipment for battery packs according to claim 1, characterized in that: The transfer clamping mechanism includes a clamping base (26), a first clamping plate (27), a second clamping plate (28), a first clamping drive assembly, and a second clamping drive assembly. Two first clamping plates (27) are arranged facing each other along the x-axis. The first clamping drive assembly is disposed on the clamping base (26) and is used to drive the two first clamping plates (27) to move closer or further away from each other. Two second clamping plates (28) are arranged facing each other along the y-axis. The second clamping drive assembly is disposed on the clamping base (26) and is used to drive the two second clamping plates (28) to move closer or further away from each other. Positioning protrusions (44) are fixedly installed on the near side of the fixed plate (22) and the first positioning plate (24). The bottom of the first clamping plate (27) is provided with a relief groove (45) corresponding to the positioning protrusions (44). The positioning protrusions (44) are respectively inserted into the relief grooves (45).

7. The automated stacking and lifting equipment for battery packs according to claim 6, characterized in that: The transfer mechanism includes a horizontal transfer component and a vertical transfer component. The vertical transfer component includes a vertical transfer base (49), an electric hoist (50), and a vertical transfer guide rod (51). The vertical transfer guide rod (51) is fixedly installed on the top of the clamping base (26). The vertical transfer guide rod (51) passes through the vertical transfer base (49) and slides with the vertical transfer base (49). The electric hoist (50) is installed on the vertical transfer base (49), and the steel cable of the electric hoist (50) is fixedly installed on the clamping base (26).

8. The automated stacking and lifting equipment for battery packs according to claim 7, characterized in that: The vertical transfer fixing seat (49) is provided with guide rollers (52), which roll in cooperation with the side wall of the vertical transfer guide rod (51). Both ends of the guide rollers (52) are provided with mounting guide grooves (54), and mounting guide rods (55) slide in the mounting guide grooves (54). The guide rollers (52) are provided with mounting springs (56) that drive the mounting guide rods (55) to move away from the guide rollers (52). The vertical transfer fixing seat (49) is provided with mounting guide seats (57) that correspond one-to-one with the guide rollers (52). The mounting guide seats (57) have two mounting holes (58) that are inserted into the mounting guide rods (55). When the two mounting guide rods (55) of the guide rollers (52) are inserted into the two mounting holes (58), the guide rollers (52) are installed on the vertical transfer fixing seat (49).

9. The automated stacking and lifting equipment for battery packs according to claim 8, characterized in that: The mounting guide (57) is provided with two pushing components corresponding to the two mounting holes (58). The pushing components include a pushing rod (59) and a pushing spring (60). The pushing rod (59) slides into the mounting hole (58). The pushing spring (60) is used to move the pushing rod (59) away from the mounting guide (55). The pushing rod (59) is fixedly mounted with a pushing limit rod (62). The pushing spring (60) is sleeved on the pushing limit rod (62). When the pushing limit rod (62) abuts against the mounting guide (57), the mounting guide (55) is retracted into the mounting guide groove (54).

10. The automated stacking and lifting equipment for battery packs according to claim 6, characterized in that: The clamping and fixing base (26) includes a fixing member (261) and a clamping member (262). The fixing member (261) is provided with a pressure lifting assembly, which is used to lift the clamping member (262). The bottom of the clamping member (262) is provided with a plurality of pneumatic suction cups (31) arranged in a rectangular array. The clamping member (262) is provided with an adjustment assembly that corresponds one-to-one with the pneumatic suction cups (31). The adjustment assembly includes a suction cup fixing block (34), a suction cup unlocking block (35), and a suction cup spring (36). The suction cup fixing block (34) is fixed to the clamping member (262). The suction cup fixing block (34) is provided with a plurality of elastic suction cup clamping parts (37) distributed along its circumference. The suction cup unlocking block (35) is slidably fitted to the suction cup fixing block (34). The suction cup spring (36) applies force to the suction cup unlocking block (35) towards the suction cup clamping parts (37). The pneumatic suction cup (31) is sequentially inserted into and slidably engaged with the clamping member (262), the suction cup fixing block (34), and the suction cup unlocking block (35). In normal condition, the suction cup clamping part (37) clamps and fixes the pneumatic suction cup (31). When the suction cup spring (36) contracts, the suction cup fixing block (34) moves away from the suction cup clamping part (37), and the suction cup clamping part (37) moves away from the pneumatic suction cup (31) due to its own elasticity.

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