Battery cell stacking equipment of soft package battery

Abstract

The utility model relates to the technical field of battery cell stacking of soft package batteries, in particular to battery cell stacking equipment of soft package batteries, which comprises a conveying mechanism for conveying battery cells with glue and a transfer mechanism for transferring the battery cells with glue to a stacking mechanism, the transfer mechanism comprises a clamping assembly and a mechanical arm for driving the clamping assembly to move, the clamping assembly comprises an anti-sticking plate and two clamping jaws in sliding connection with the anti-sticking plate, the anti-sticking plate is driven by a first driving source to do vertical reciprocating motion, the two clamping jaws are driven by a second driving source to do face-to-face and back-to-back motion, and a clamping space which is located below the anti-sticking plate and used for containing an adhesive cell is formed between the two clamping jaws; the stacking mechanism comprises a rotary table rotationally arranged on the workbench, a plurality of stacking units distributed in the circumferential direction of the rotary table are arranged on the rotary table, each stacking unit comprises a supporting corner fixedly arranged on the rotary table, and the four supporting corners define a rectangular stacking area used for containing the battery cells with glue.

Description

Technical Field

[0001] The utility model relates to the technical field of soft-pack battery cell stacking, in particular to a cell stacking device for soft-pack batteries. Background Art

[0002] In the production process of the battery module of a soft-pack battery, the battery cells are combined in a stacked manner to form a complete battery module. To ensure the structural stability and thermal management performance between the battery cells, each battery cell needs to be pasted with glue before stacking. After the gluing process, the glued battery cells need to be stacked. The existing stacking devices and gluing devices cannot be efficiently connected. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cell stacking device for soft-pack batteries, which can be efficiently connected with automatic gluing, improving the automation degree of soft-pack batteries.

[0004] To achieve the above purpose, the specific solution adopted by the utility model is as follows: A cell stacking device for soft-pack batteries includes a transmission mechanism for transmitting glued battery cells and a transfer mechanism for transferring the glued battery cells to a stacking mechanism. The transfer mechanism includes a clamping component and a robotic arm for driving the clamping component to move. The clamping component includes an anti-sticking plate and two jaws slidably connected to the anti-sticking plate. The anti-sticking plate is driven by a first driving source to perform vertical reciprocating motion, and the two jaws are driven by a second driving source to move towards and away from each other, so as to form a clamping space below the anti-sticking plate and for accommodating the glued battery cells between the two jaws; The stacking mechanism includes a turntable rotatably arranged on the workbench, and a plurality of stacking units are arranged on the turntable along its circumferential direction. The stacking unit includes support corners fixedly arranged on the turntable, and four support corners enclose a rectangular stacking area for accommodating the glued battery cells.

[0005] As an optimized scheme of the above cell stacking device for soft-pack batteries: The transmission mechanism includes a conveyor belt, and a plurality of bearing units are fixedly arranged on the conveyor belt and evenly distributed along the length direction of the conveyor belt. The bearing unit includes two bearing plates distributed along the length direction of the conveyor belt and for bearing the glued battery cells.

[0006] As another optimized scheme of the above cell stacking device for soft-pack batteries: The bearing plate is fixedly connected to the conveyor belt through a cushion block. The cushion block is fixedly installed on the conveyor belt, and the bearing plate is fixedly installed above the cushion block.

[0007] As another optimized scheme of the above cell stacking device for soft-pack batteries: The transmission mechanism further includes a machine tool, and an adjustment component and a lifting cylinder for lifting the adjustment component are arranged at the tail of the conveyor belt on the machine tool. The adjustment component includes two adjustment claws that can move towards and away from each other, and a clamping area for accommodating the glued battery cells is formed between the two adjustment claws.

[0008] As another optimization solution for the core stacking device of the above-mentioned soft-pack battery: The stacking device further includes a detection mechanism for detecting the adhesive tape core, and the detection mechanism includes a detection platform, on which at least one camera is arranged.

[0009] As another optimization solution for the core stacking device of the above-mentioned soft-pack battery: A fixed seat is fixedly arranged above the anti-sticking plate, the fixed seat is drivingly connected to a first driving source, and two clamping jaws are slidably arranged on the fixed seat.

[0010] As another optimization solution for the core stacking device of the above-mentioned soft-pack battery: The fixed seat includes a first fixing plate parallel to the anti-sticking plate and located above the anti-sticking plate. The first fixing plate and the anti-sticking plate are connected by a plurality of vertically arranged second fixing plates. The second fixing plates are vertically and fixedly connected with an intermediate plate for installing a second driving source, and the second driving source is drivingly connected to the two clamping jaws.

[0011] As another optimization solution for the core stacking device of the above-mentioned soft-pack battery: A sliding plate drivingly connected to the first driving source is slidably arranged on the fixed seat, and a plurality of springs for pushing the sliding plate to slide away from the fixed seat are arranged between the sliding plate and the fixed seat.

[0012] As another optimization solution for the core stacking device of the above-mentioned soft-pack battery: A pressing unit is arranged on one side of the rectangular stacking area, and the pressing unit includes a pressing plate, a first driving unit for driving the pressing plate to reciprocate horizontally, and a second driving unit for driving the pressing plate to move vertically.

[0013] As another optimization solution for the core stacking device of the above-mentioned soft-pack battery: The first driving unit includes a sliding seat slidably connected to a turntable and a first air cylinder for driving the sliding seat. The second driving unit includes a second air cylinder fixedly installed on the sliding seat, and the pressing plate is fixedly connected to the piston end of the second air cylinder.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. The present utility model provides a core stacking device for a soft-pack battery. Two clamping jaws grab the adhesive tape core and transfer it to the rectangular stacking area through a robotic arm to complete the stacking of the cores. The number of rectangular stacking areas is multiple, and they alternately enter the stacking station, which can be efficiently connected with the automatic adhesive pasting device, improving the automation degree of the soft-pack battery.

[0016] 2. In the present utility model, the setting of the adjustment component can adjust the position and posture of the adhesive tape core, thereby ensuring that the adhesive tape core can smoothly enter the rectangular stacking area and avoiding the unqualified battery module caused by the core offset. Description of the Drawings

[0017] Figure 1 is the top view of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the transfer mechanism in the present utility model;

[0019] Figure 3 is the side view of the clamping assembly;

[0020] Figure 4 is the three - dimensional view of the clamping assembly;

[0021] Figure 5 is the structural schematic diagram of the stacking mechanism;

[0022] Figure 6 is the structural schematic diagram of the carrying unit;

[0023] Reference numerals: 1, transmission mechanism; 2, transfer mechanism; 3, detection mechanism; 4, storage table; 5, stacking mechanism; 6, manipulator; 7, conveyor belt; 8, first support plate; 9, adjustment claw; 10, driving cylinder; 11, connecting block; 12, lifting cylinder; 13, camera; 14, detection platform; 15, clamping assembly; 16, mounting plate; 17, first driving source; 18, anti - sticking plate; 19, second fixing plate; 20, intermediate plate; 21, first fixing plate; 22, third fixing plate; 23, third driving source; 24, protective claw; 25, second driving source; 26, clamping jaw; 27, sliding plate; 28, second slide rail; 29, limiting block; 30, second slider; 31, spring; 32, first induction piece; 33, first sensor; 34, guiding rod; 35, connecting ear; 36, sliding rod; 37, workbench; 38, turntable; 39, support angle; 40, fixed seat; 41, fourth fixing plate; 42, support block; 43, rectangular stacking area; 44, pressing plate; 45, second cylinder; 46, second support plate; 47, support rod; 48, third support plate; 49, third slider; 50, third slide rail; 51, fifth fixing plate; 52, first cylinder; 53, robotic arm; 54, cushion block; 55, bearing plate; 56, limiting member. Detailed implementation manners

[0024] The following combines specific embodiments to further elaborate on the technical solutions of the present utility model. For parts that are not detailedly recorded and disclosed in the following embodiments of the present utility model, they should all be understood as the prior art known or should be known to those skilled in the art.

[0025] Embodiment

[0026] A core stacking device for a soft-pack battery includes a transmission mechanism 1 for transporting adhesive-coated cores and a transfer mechanism 2 for transferring the adhesive-coated cores to a stacking mechanism 5. The transmission mechanism 1 includes a machine tool and a conveyor belt 7 rotatably arranged on the machine tool. A plurality of loading units are fixedly arranged on the conveyor belt 7 and evenly distributed along its length direction. The loading units move synchronously with the conveyor belt 7, and the adhesive-coated cores are placed on the loading units, so that the conveyor belt 7 drives the adhesive-coated cores to move synchronously. The loading unit includes two loading plates 55 distributed along the length direction of the conveyor belt 7 and used for loading the adhesive-coated cores. The two loading plates 55 are arranged oppositely and fixed on the conveyor belt 7. Specifically, the loading plate 55 is fixedly connected to the conveyor belt 7 through a cushion block 54. The cushion block 54 is fixedly installed on the conveyor belt 7, and the loading plate 55 is fixedly installed above the cushion block 54, that is, the cushion block 54 is fixedly connected to the conveyor belt 7, and the connection mode between the two is bolt connection; the loading plate 55 is fixedly connected to the cushion block 54, and the connection mode between the two is bolt connection. Limit members 56 are arranged at both ends of each loading plate 55, and the four limit members 56 enclose an accommodation space for accommodating the adhesive-coated core. In this embodiment, there are two limit members 56 on one loading plate 55. The limit members 56 are located above the loading plate 55 and fixedly connected to the loading plate 55, and the connection mode between the two is bolt connection; a first baffle is vertically fixedly connected to the edge of the limit member 56 facing away from the other loading plate 55, and the height of the first baffle is higher than the upper surface of the adhesive-coated core; a second baffle is vertically arranged at the edge of the limit member 56 facing away from the end of the same loading plate 55, and the height of the second baffle is lower than the upper surface of the adhesive-coated core. The lower surface of the adhesive-coated core is located in the accommodation space enclosed by the four limit members 56, and the lower surface of the tab of the adhesive-coated core is in contact with the end of the second baffle and extends out of the accommodation space.

[0027] An adjustment assembly is arranged on the machine tool at the tail of the conveyor belt 7 and a lifting cylinder 12 for lifting the adjustment assembly. In this embodiment, the number of adjustment assemblies is two and they are distributed along the conveying direction of the adhesive-coated core, that is, the postures of two cores can be adjusted simultaneously. The adjustment assembly includes two adjustment claws 9 that can move towards and away from each other, and a clamping area for accommodating the adhesive-coated core is formed between the two adjustment claws 9. Specifically, a first support plate 8 is fixedly arranged on the machine tool. The first support plate 8 is fixedly connected to the machine tool vertically and is located on one side of the conveyor belt. The lifting cylinder 12 is fixedly installed on the first support plate 8. A first connecting plate is slidably arranged on the side of the first support plate 8 close to the conveyor belt 7. The lifting cylinder 12 is drivingly connected to the first connecting plate. Specifically, two mutually parallel first slide rails are fixedly connected to the surface of the first support plate 8 close to the conveyor belt 7. The first slide rails are arranged vertically. Two first sliders corresponding to the first slide rails one by one are fixedly connected to the first connecting plate, and the first sliders can slide along their corresponding slide rails. A connecting block 11 is vertically fixedly connected to the top end of the first connecting plate, and the connecting block 11 is fixedly connected to the piston end of the lifting cylinder 12.

[0028] A driving cylinder 10 is fixedly connected to the first connecting plate. The driving cylinder 10 is a double-acting cylinder, and its two pistons are respectively fixedly connected to two adjusting claws 9. That is, one end of the adjusting claw 9 is fixedly connected to the piston end of the driving cylinder 10, and the other end of the adjusting claw 9 extends towards the other side of the conveyor belt 7, so that it is located above the conveyor belt 7. The adjusting assembly adjusts the posture of the adhesive tape cell, which is convenient for the transfer mechanism 2 to grasp the adhesive tape cell and for the subsequent stacking of the adhesive tape cells.

[0029] In this embodiment, the number of the transfer mechanisms 2 is two, which are respectively located on both sides of the tail end of the conveyor belt 7. The transfer mechanism 2 includes a clamping assembly 15 and a robotic arm 53 for driving the clamping assembly 15 to move. Among them, the robotic arm 53 is a commercially available product, and the model of the robotic arm 53 is FANUC M-20iD, FANUC M-10iD / 12, etc. The clamping assembly 15 includes an anti-adhesive plate 18 and two jaws 26 slidably connected to the anti-adhesive plate 18. The anti-adhesive plate 18 is a rectangular plate-like structure, and the length direction of the anti-adhesive plate 18 is parallel to the length direction of the adhesive tape cell, and the length of the anti-adhesive plate 18 is less than the length of the adhesive tape cell, and the width of the anti-adhesive plate 18 is less than the width of the adhesive tape cell. In this embodiment, a plurality of process holes are provided on the anti-adhesive plate 18 to reduce its weight; an anti-adhesive layer is covered on the lower surface of the anti-adhesive plate 18. When clamping the cell, the lower surface of the anti-adhesive plate 18 is in contact with the upper surface of the cell adhesive layer. The setting of the anti-adhesive layer avoids the adhesive layer sticking to the anti-adhesive plate 18, thereby avoiding contaminating the adhesive layer and improving the stacking quality of the cell.

[0030] In this embodiment, the number of the clamping assemblies 15 is two, and they are installed on the robotic arm 53 through a mounting plate 16. The mounting plate 16 is a rectangular plate-like structure. The two clamping assemblies 15 are symmetrically arranged on the mounting plate 16 and are both located below the mounting plate 16. The robotic arm 53 drives the two clamping assemblies 15 to move simultaneously, that is, two adhesive tape cells can be transferred simultaneously, improving the processing efficiency of the soft-pack battery.

[0031] The anti-adhesive plate 18 is driven by a first driving source 17 to perform vertical reciprocating motion, and the two jaws 26 are driven by a second driving source 25 to move towards and away from each other, so as to form a clamping space below the anti-adhesive plate 18 and for accommodating the adhesive tape cell; as Figure 4As shown, the first driving source 17 is fixedly mounted on the mounting plate 16. In this embodiment, the first driving source 17 is a cylinder, the piston of the cylinder passes through the mounting plate 16 and extends to the bottom of the mounting plate 16 and is driven and connected to the anti-sticking plate 18. The clamping jaw 26 includes a first portion located above and parallel to the anti-sticking plate 18 and a second portion vertically fixedly connected to the first portion. Specifically, the second driving source 25 is a double-acting cylinder, the first portion is used to be fixedly connected to the piston of the second driving source 25, and the end of the first portion away from the second driving source 25 is fixedly connected to the second portion, and the two are connected by bolts; the two second portions are located on both sides of the anti-sticking plate 18, and the second portions are used to contact the edge of the adhesive-coated battery cell. A protective pad is fixedly provided on one side of the second part close to the anti-sticking plate 18, and the protective pad is fixed on the lower part of the second part. When the second driving source 25 drives the two clamping jaws 26 to move toward each other, the two second parts move toward the anti-sticking plate 18, so that the second parts come into contact with the edge of the battery cell, and the battery cell is confined in the clamping space. The setting of the protective pad plays a role in protecting the battery cell with glue and preventing the edge of the battery cell with glue from being damaged.

[0032] A fixing base 40 is fixedly provided above the anti-sticking plate 18, and the fixing base 40 is driven and connected to the first driving source 17, and two clamping claws 26 are slidably provided on the fixing base 40. Specifically, the fixing base 40 includes a first fixing plate 21 parallel to the anti-sticking plate 18 and located above the anti-sticking plate 18. The first fixing plate 21 and the anti-sticking plate 18 are connected by a plurality of vertically arranged second fixing plates 19. The first fixing plate 21 and the second fixing plate 19 are both rectangular plate-shaped structures, and process holes are opened on the second fixing plate 19 to reduce the weight of the second fixing plate 19. In this embodiment, the number of the second fixing plates 19 is two, and they are respectively located near the ends of the anti-sticking plate 18. The bottom end of the second fixing plate 19 is fixedly connected to the anti-sticking plate 18, and the connection method of the two is bolted. The top end of the second fixing plate 19 is connected to the first fixing plate 21, and the connection method of the two is bolted. The second fixing plate 19 is vertically fixedly connected to the middle plate 20 for mounting the second driving source 25.

[0033] Two protective claws 24 are slidably mounted on the fixed base 40, and the protective claws 24 are driven by the third driving source 23 to move toward and away from each other. Specifically, the third driving source 23 is a double-acting cylinder fixedly mounted on the first fixed plate 21, and the two pistons of the third driving source 23 are respectively fixedly connected to the two protective claws 24. In this embodiment, the protective claws 24 are located on the side of the clamping jaws 26 facing away from the anti-sticking plate 18. The protective claws 24 include a horizontal plate parallel to the middle plate 20 and a vertical plate fixedly connected to the horizontal plate, as shown in FIG. Figure 4As shown, the horizontal plate and the vertical plate are integrally connected, and the vertical plate is formed by bending the horizontal plate by 90°. The horizontal plate is fixedly connected to the piston of the third driving source 23. At one end of the vertical plate facing away from the horizontal plate, a protective piece capable of extending into the lower part of the clamping space is vertically arranged, that is, the bottom end of the vertical plate is fixedly connected to the protective piece. The protective piece is of an "L" - shaped structure, and its vertical part is fixedly connected to the vertical plate, and the connection method between the two is bolt connection; its horizontal part extends towards the anti - sticking plate 18. When the third driving source 23 drives the protective claws 24 to move towards each other, the protective claws 24 move towards the anti - sticking plate 18, so that the protective piece can be located below the adhesive - carrying battery cell and play a protective role for the adhesive - carrying battery cell.

[0034] A slide plate 27 driven by the first driving source 17 is slidably arranged on the fixed seat 40. Between the slide plate 27 and the fixed seat 40, a number of springs 31 for pushing the slide plate 27 to slide away from the fixed seat 40 are arranged. The slide plate 27 is located above the fixed seat 40 and is parallel to the mounting plate 16. The slide plate 27 is fixedly connected to the piston of the first driving source 17. Specifically, the connection method between the slide plate 27 and the fixed seat 40 is that two mutually parallel third fixing plates 22 are fixedly connected to the edge of the first fixing plate 21. The third fixing plates 22 are perpendicular to the first fixing plate 21, and the bottom ends of the third fixing plates 22 are fixedly connected to the first fixing plate 21, and the connection method between the two is bolt connection; the two third fixing plates 22 are located on both sides of the slide plate 27, and vertically arranged second slide rails 28 are fixedly connected to the third fixing plates 22. Second sliders 30 capable of sliding along the second slide rails 28 are fixedly connected to the slide plate 27. In order to prevent the second sliders 30 from falling off the second slide rails 28, limit blocks 29 are fixedly connected to the top ends of the second slide rails 28.

[0035] Two guide rods 34 are fixedly connected to the slide plate 27. The two guide rods 34 are located on both sides of the first driving source 17 of the clamping assembly 15. The guide rods 34 are perpendicular to the slide plate 27, and the bottom ends of the guide rods 34 are fixedly connected to the slide plate 27 through connecting ears 35. The connecting ears 35 and the slide plate 27 are integrally connected; the top ends of the guide rods 34 pass through the mounting plate 16 and are slidably connected to the mounting plate 16. Limiting rings located above the mounting plate 16 are fixedly sleeved on the tops of the guide rods 34 to limit the displacement of the guide rods 34.

[0036] A plurality of slide bars 36 are fixedly arranged on the first fixing plate 21. The number of the slide bars 36 is two, and they are distributed along the length direction of the first fixing plate 21. The number of the springs 31 is also two, and the slide bars 36 and the springs 31 correspond one by one. The springs 31 are correspondingly sleeved on the slide bars 36. The bottom end of the slide bar 36 is fixedly connected to the first fixing plate 21, and the other end of the slide bar 36 passes through the slide plate 27 and is fixedly connected with a limiting plate. When the transfer rack clamps the battery cell, the first driving source 17 drives the slide plate 27 to move downward, thereby driving the lower fixing seat 40 to move synchronously until the anti-adhesive plate 18 contacts the surface of the adhesive tape battery cell; the slide plate 27 continues to move downward, and the fixing seat 40 no longer moves due to the obstruction of the adhesive tape battery cell, that is, the slide plate 27 moves downward along the second slide rail 28, and the spring 31 is in a compressed state. That is, when grasping the battery cell, the spring 31 plays a buffering role to prevent the adhesive tape battery cell from being damaged; the second driving source 25 and the third driving source 23 respectively drive the clamping jaws 26 and the protection claws 24 to move towards the anti-adhesive plate 18, so that the clamping jaws 26 limit the adhesive tape battery cell in the clamping space, and the protection piece is located below the adhesive tape battery cell; grasp the battery cell and transfer it to the stacking mechanism 5. The first driving source 17 drives the slide plate 27 to move downward, and the second driving source 25 and the third driving source 23 drive the clamping jaws 26 and the protection claws 24 to move away from each other, and place the battery cell in the stacking mechanism 5. The first driving source 17 continues to press down the slide plate 27, and the spring 31 is in a compressed state and has a downward pressure on the anti-adhesive plate 18, so that the combination between the battery cells is more firm, thereby improving the performance of the soft-pack battery.

[0037] A first sensor 33 is arranged on the slide plate 27, and a first induction piece 32 is arranged on the third fixing plate 22. The first sensor 33 and the first induction piece 32 cooperate to determine the relative displacement between the slide plate 27 and the third fixing plate 22. The first sensor 33 transmits the collected data to the control unit so that the control unit controls the operation of the first driving source 17, the second driving source 25 and the third driving source 23. At the same time, an infrared detector is arranged on the first fixing plate 21 for detecting whether an adhesive tape battery cell is clamped on the clamping assembly 15.

[0038] The stacking device further includes a detection mechanism 3 for detecting the adhesive tape battery cell. The number of the detection mechanisms 3 is two, and they are respectively located on both sides of the tail end of the conveyor belt 7. One detection mechanism 3 corresponds to one transfer mechanism 2, which can improve the stacking efficiency. The detection mechanism 3 includes a detection platform 14. The detection platform 14 is fixedly installed on the machine tool. At least one camera 13 is arranged on the detection platform 14. The number of the cameras 13 is two, and they are respectively located at both ends of the detection platform 14. After the transfer mechanism 2 grabs the adhesive tape battery cell, it first places the adhesive tape battery cell on the detection platform 14 for detection. After the detection is qualified, the transfer mechanism 2 grabs the adhesive tape battery cell and transfers it into the stacking mechanism 5.

[0039] In this embodiment, the specifications of adjacent two adhesive-coated battery cells are different, and the specifications of the adhesive-coated battery cells are affected by the formula of the battery module. Therefore, when a certain adhesive-coated battery cell on the transmission mechanism 1 is unqualified, the adhesive-coated battery cell on the next carrying unit of the unqualified battery cell cannot be used to replace it. Therefore, a storage table 4 is arranged on one side of the transfer mechanism 2, and storage areas for storing adhesive-coated battery cells of different specifications are distributed at intervals on the storage table 4. After detecting that the adhesive-coated battery cell is unqualified, the transfer mechanism 2 will grab a qualified adhesive-coated battery cell of the corresponding specification on the storage table 4, which improves the stacking efficiency of the adhesive-coated battery cells, avoids shutdown caused by unqualified battery cells, and at the same time ensures the correct formula of the battery module.

[0040] The stacking mechanism 5 includes a turntable 38 rotatably arranged on the workbench 37. The turntable 38 is a circular plate-like structure and is rotatably connected to the workbench 37. A driving motor for driving the turntable 38 to rotate is arranged on the workbench 37, so that the turntable 38 rotates around its axis. The number of stacking units is two and they are symmetrically arranged along the center of the turntable 38. When the battery cells of one stacking unit are stacked to form a battery module, the turntable 38 rotates 180°, so that the other stacking unit is located at the stacking station, and a manipulator 6 is used to clamp away the battery module. The two stacking units work alternately, which is efficiently connected with the automatic gluing equipment, improving the automation degree and processing efficiency of the soft-pack battery.

[0041] A plurality of stacking units are arranged on the turntable 38 along its circumferential direction. The stacking unit includes support angles 39 fixedly arranged on the turntable 38. Four support angles 39 enclose a rectangular stacking area 43 for accommodating the adhesive-coated battery cells.

[0042] The support angles 39 are vertically arranged. The support angle 39 includes a first folding plate and a second folding plate perpendicularly and fixedly connected to the first folding plate. The connection mode between the first folding plate and the second folding plate is an integral connection. The right-angle area formed by the first folding plate and the second folding plate faces the rectangular stacking area 43. The bottom end of the support angle 39 is fixed on the turntable 38. A fourth fixing plate 41 is fixedly connected to the turntable 38. The connection mode between the fourth fixing plate 41 and the turntable 38 is a bolt connection. The stacking unit is fixed on the fourth fixing plate 41. The stacking unit further includes two oppositely arranged support frames. One support frame correspondingly installs two support angles 39; the support frame includes a second support plate 46 parallel to the turntable 38 and two third support plates 48 perpendicular to the second support plate 46. The top end of the third support plate 48 is fixedly connected to the second support plate 46. The connection mode between the third support plate 48 and the second support plate 46 is a bolt connection. The bottom end of the third support plate 48 is fixedly connected to the fourth fixing plate 41. The connection mode between the third support plate 48 and the fourth fixing plate 41 is a bolt connection. An infrared detector is arranged on the third support plate 48 close to the rectangular stacking area 43 for detecting whether there is a battery cell in the rectangular stacking area 43 and transmitting the detection data to the control unit.

[0043] In this embodiment, a support block 42 fixedly connected to the turntable 38 is arranged between the two support frames. The bottom end of the support block 42 is fixedly connected to the fourth fixing plate 41, and the connection mode between the two is bolt connection. An avoidance area is formed between the support block 42 and the support frame, which is convenient for the subsequent manipulator 6 to extend under the battery module to grab it. The upper surfaces of the two second support plates 46 are flush with the upper surface of the support block 42, forming a bearing surface for supporting the battery cells.

[0044] On one side of the rectangular stacking area 43, a pressing unit is arranged. The number of the pressing units is two and they correspond to the stacking units one by one. The pressing unit is located on the side of the stacking unit close to the center of the turntable 38. The pressing unit includes a pressing plate 44, a first driving unit for driving the pressing plate 44 to reciprocate horizontally, and a second driving unit for driving the pressing plate 44 to reciprocate vertically. The area of the lower surface of the pressing plate 44 is smaller than the cross-sectional area of the rectangular stacking area 43, ensuring that the pressing plate 44 can enter the rectangular stacking area 43. When stacking battery cells into the rectangular stacking area 43, the pressing plate 44 is located at one end of the rectangular stacking area 43. After the battery cells are stacked, the first driving unit drives the pressing plate 44 to move horizontally above the rectangular stacking area 43 and is located at the central position of the rectangular stacking area 43. Then the second driving unit drives the pressing plate 44 to move downward to apply a downward pressure to the battery cells in the rectangular stacking area 43, improving the bonding force of the adhesive between adjacent two battery cells and enhancing the stability of the battery module.

[0045] A fifth fixing plate 51 is fixedly connected to the turntable 38, and the connection mode between the fifth fixing plate 51 and the turntable 38 is bolt connection. The flattening unit is arranged on the fifth fixing plate 51. The first driving unit includes a first cylinder 52 fixedly arranged on the turntable 38, and the first cylinder 52 is drivingly connected to a sliding seat slidably arranged on the turntable 38. The second driving unit includes a second cylinder 45 fixedly installed on the sliding seat, and the pressing plate 44 is drivingly connected to the second cylinder 45. Specifically, the sliding seat includes a fourth support plate and a fifth support plate that are parallel to each other. Both the fourth support plate and the fifth support plate are rectangular plate structures, and the fourth support plate and the fifth support plate are distributed along the height direction. The fourth support plate and the fifth support plate are fixedly connected by a plurality of support rods 47. In this embodiment, the number of the support rods 47 is four and they are respectively located at the four corners of the fourth support plate. The top end of the support rod 47 is fixedly connected to the lower surface of the fourth support plate, and the bottom end of the support rod 47 is fixedly connected to the upper surface of the fifth support plate. In this embodiment, a second connecting plate is fixedly connected to one end of the fourth support plate facing the rectangular stacking area 43. The second connecting plate is perpendicular to the fourth support plate, and a reinforcing plate is arranged between the second connecting plate and the fourth support plate to improve the connection stability between the second connecting plate and the fourth support plate. The second cylinder 45 is fixed on the second connecting plate.

[0046] The fifth support plate is slidably connected to the turntable 38. Specifically, a number of third slide rails 50 are fixedly arranged on the turntable 38. The number of the third slide rails 50 is two, and the two third slide rails 50 are parallel to each other. Moreover, the extending direction of the third slide rails 50 is parallel to the length direction of the rectangular stacking area 43. In this embodiment, the third slide rails 50 are fixedly connected to the fifth fixing plate 51, and the connection manner between the two is bolt connection; third sliders 49 corresponding to the third slide rails 50 one by one are fixedly arranged on the fifth support plate. The third sliders 49 can slide along the third slide rails 50. The number of the third sliders 49 on the fifth support plate is two, and the connection manner between the third sliders 49 and the fifth support plate is bolt connection. The first cylinder 52 is located at one end of the fifth fixing plate 51, and the piston end of the first cylinder 52 is fixedly connected to the fifth support plate, so that the first cylinder 52 drives the fifth support plate to move along the length direction of the third slide rails 50, and further drives the pressing plate 44 and the second cylinder 45 to perform reciprocating motion in the horizontal direction.

[0047] A second sensor is fixedly arranged on the workbench 37, and the number of the second sensors is one; an induction piece is fixedly arranged on the turntable 38. The number of the induction pieces is two, and the positions of the induction pieces correspond to those of the two stacking units. The induction pieces move synchronously with the turntable 38, and the second sensor is located on the rotation track of the induction pieces.

[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A core stacking device for a soft-pack battery, characterized in that: It includes a transmission mechanism (1) for transporting the adhesive-coated battery cells and a transfer mechanism (2) for transferring the adhesive-coated battery cells to a stacking mechanism (5). The transfer mechanism (2) includes a clamping assembly (15) and a robotic arm (53) for driving the clamping assembly (15) to move. The clamping assembly (15) includes an anti-sticking plate (18) and two jaws (26) slidably connected to the anti-sticking plate (18). The anti-sticking plate (18) is driven by a first driving source (17) to perform vertical reciprocating motion, and the two jaws (26) are driven by a second driving source (25) to move towards and away from each other, so as to form a clamping space below the anti-sticking plate (18) for accommodating the adhesive-coated battery cells; the stacking mechanism (5) includes a turntable (38) rotatably arranged on a workbench (37). A plurality of stacking units are arranged on the turntable (38) along its circumferential direction. The stacking unit includes a supporting angle (39) fixedly arranged on the turntable (38). Four supporting angles (39) enclose a rectangular stacking area (43) for accommodating the adhesive-coated battery cells.

2. The core stacking device of a soft-pack battery according to claim 1, characterized in that: The transmission mechanism (1) includes a conveyor belt (7). A plurality of loading units are fixedly arranged on the conveyor belt (7) and are evenly distributed along the length direction of the conveyor belt (7). The loading unit includes two loading plates (55) distributed along the length direction of the conveyor belt (7) for loading the adhesive-coated battery cells.

3. The core stacking device of a soft-pack battery according to claim 2, characterized in that: The loading plate (55) is fixedly connected to the conveyor belt (7) through a spacer block (54). The spacer block (54) is fixedly installed on the conveyor belt (7), and the loading plate (55) is fixedly installed above the spacer block (54).

4. The core stacking device for a soft-pack battery according to claim 2, wherein: The transmission mechanism (1) further includes a machine tool. An adjustment assembly is arranged at the tail of the conveyor belt (7) on the machine tool, and a lifting cylinder (12) for lifting the adjustment assembly. The adjustment assembly includes two adjustment claws (9) that can move towards and away from each other. A clamping area for accommodating the adhesive-coated battery cells is formed between the two adjustment claws (9).

5. The core stacking device of a soft-pack battery according to claim 1, characterized in that: The stacking device further includes a detection mechanism (3) for detecting the adhesive-coated battery cells. The detection mechanism (3) includes a detection platform (14). At least one camera (13) is arranged on the detection platform (14).

6. The core stacking device of a soft-pack battery according to claim 1, characterized in that: A fixed seat (40) is fixedly arranged above the anti-sticking plate (18). The fixed seat (40) is drivingly connected to the first driving source (17), and the two jaws (26) are slidably arranged on the fixed seat (40).

7. The core stacking device for a soft-pack battery according to claim 6, wherein: The fixed seat (40) includes a first fixing plate (21) parallel to the anti-sticking plate (18) and located above the anti-sticking plate (18). The first fixing plate (21) and the anti-sticking plate (18) are connected by a plurality of vertically arranged second fixing plates (19). The second fixing plate (19) is vertically fixedly connected with an intermediate plate (20) for installing the second driving source (25). The second driving source (25) is drivingly connected to the two jaws (26).

8. The core stacking device of a soft-pack battery according to claim 6, wherein: A sliding plate (27) drivingly connected to the first driving source (17) is slidably arranged on the fixed seat (40). A plurality of springs (31) for pushing the sliding plate (27) to slide away from the fixed seat (40) are arranged between the sliding plate (27) and the fixed seat (40).

9. The core stacking device of a soft-pack battery according to claim 1, wherein: A pressing unit is provided on one side of the rectangular stacking area (43). The pressing unit includes a pressing plate (44), a first driving unit for driving the pressing plate (44) to reciprocate horizontally, and a second driving unit for driving the pressing plate (44) to move vertically.

10. The core stacking device of a soft-pack battery according to claim 9, characterized in that: The first driving unit includes a sliding seat slidably connected to the turntable (38) and a first air cylinder (52) for driving the sliding seat. The second driving unit includes a second air cylinder (45) fixedly installed on the sliding seat, and the pressing plate (44) is fixedly connected to the piston end of the second air cylinder (45).

Images