A battery cell gluing device

Abstract

The present application relates to a battery cell gluing device, comprising a frame, which is divided into an operation area, a loading area, a positioning area, a film tearing area and a core sticking area in the horizontal direction; a plurality of storage boxes, which are distributed in two groups in the vertical direction, and the two groups of storage boxes are connected to a transverse transfer module for transferring the storage boxes between the operation area and the loading area, and the storage box located below is also connected to a lifting transfer module, which is connected to the transverse transfer module; a positioning platform, which is arranged in the positioning area and is used to calibrate and adjust the workpiece; two transfer manipulators, which are both connected to the frame in a three-axis movable manner, and are divided into an initial transfer part for transferring the workpiece from the loading area to the positioning area and a final transfer part for transferring the workpiece from the positioning area to the film tearing area and the core sticking area in sequence; a lower film connecting part, which is arranged in the film tearing area; and an upper film connecting part, which is arranged on the final transfer part. The present application has the effect of not only improving the efficiency of the gluing work, but also keeping the structure of the gluing equipment simple.

Description

Technical Field

[0001] The present application relates to the field of battery production, and in particular to a battery cell gluing device. Background Art

[0002] The power battery is the power source that provides power for tools. The power battery pack is mainly composed of multiple battery cells spliced ​​together, that is, the adjacent sides of the multiple battery cells are fixedly connected. During the assembly process of existing power battery packs, adjacent battery cells are mainly connected and fixed by welding and gluing. Although welding to connect and fix the battery cells can ensure the firm connection of adjacent battery cells, it is not convenient to disassemble and replace the battery cells. If gluing is used to connect and fix adjacent battery cells, it will not only facilitate the disassembly and replacement of the battery cells, but also ensure the heat dissipation effect of the battery cells.

[0003] In the related technology, the battery cell gluing equipment includes a frame, a storage box, a transverse feeding module, a transfer robot, a positioning platform, a lower film connecting part and an upper film tearing part. The frame is divided into an operation area, a loading area, a positioning area, a film tearing area and a core sticking area in the horizontal direction. The storage box accommodates stacked double-sided tapes, and the upper side of the storage box is opened. In the operation area, the staff fills the double-sided tape, and in the loading area, other components take the double-sided tape out of the storage box, and multiple storage boxes move at the same height; the transverse feeding module is connected to the storage box, and the transverse feeding module allows the storage box to reciprocate between the operation area and the loading area; the transfer robot has three-axis movement capability, and one transfer robot is provided. The transfer robot can transfer multiple double-sided tapes at a time, and the transfer robot transfers the double-sided tape from the loading area to the positioning area, the film tearing area and the core sticking area in sequence.

[0004] The positioning platform is set in the positioning area, and the transfer robot will place the double-sided tape on the positioning platform. The positioning platform will adjust the posture of the double-sided tape. After the adjustment, the transfer robot will take the double-sided tape away from the positioning platform; the lower film tearing part is set in the film tearing area, and the transfer robot will enter the film tearing area with the double-sided tape. At this time, the lower film connecting part will connect to the lower layer of the double-sided tape, and then tear off the lower layer of the film with the help of the movement of the transfer robot. Then the transfer robot will transfer the double-sided tape to the core sticking area and stick the double-sided tape on the battery cell; the upper film tearing part is set in the core sticking area, and the upper layer of the double-sided tape will be torn off after the double-sided tape is stuck on the battery cell.

[0005] Regarding the above-mentioned related technologies, there are the following problems: first, there is only one transfer robot, so when the positioning platform adjusts the posture of the double-sided tape, the transfer robot cannot perform other work, so the working efficiency of the gluing equipment is low; second, the storage box moves at the same height, so after the double-sided tape in the storage box is used up, it can only wait for the staff to load the material before continuing the gluing work, so the gluing equipment will be repeatedly shut down, thereby reducing production efficiency; third, the battery cells are usually placed on a horizontally conveyed material belt, and the horizontal conveying direction is perpendicular to the distribution direction of multiple functional areas on the frame, so the upper tear film part has at least two-axis movement capabilities in the vertical and horizontal directions, so the structure of the gluing equipment will be too complicated. Summary of the Invention

[0006] In order to improve the efficiency of the gluing work and keep the structure of the gluing equipment simple, the present application provides a battery cell gluing equipment.

[0007] The battery cell gluing equipment provided in this application adopts the following technical solution:

[0008] A battery cell gluing device, comprising:

[0009] The frame is divided into the operation area, loading area, positioning area, film tearing area and core sticking area in the horizontal direction;

[0010] A plurality of material storage boxes are vertically distributed in two groups, and both groups of material storage boxes are connected to a transverse transfer module for transferring the material storage boxes between the operation area and the loading area. The material storage box located below is also connected to a lifting transfer module, and the lifting transfer module is connected to the transverse transfer module;

[0011] A positioning platform, provided at the positioning area, for calibrating and adjusting the workpiece;

[0012] Two transfer manipulators are connected to the frame in a three-axis manner, and are divided into an initial transfer part for transferring the workpiece from the loading area to the positioning area, and a final transfer part for transferring the workpiece from the positioning area to the film tearing area and the core attaching area in sequence;

[0013] A lower film connecting member is arranged at the film tearing area;

[0014] The upper film connecting part is arranged on the final transfer part.

[0015] By adopting the above technical solution, firstly, the two transfer robots can each undertake a part of the transfer work, then when the positioning platform is working, the initial transfer part can remove a set of double-sided tape, so that the processing time axes of the front and rear sets of double-sided tape are overlapping, thereby improving the efficiency of the gluing work, secondly, when one set of material storage boxes is in the loading area for loading, the other set of material storage boxes can be in the operation area for the staff to prepare materials, so there will be no situation where there is no material available in the loading area of ​​the equipment, so the working efficiency of the gluing equipment can be improved, and the other two sets of material storage boxes are both at the same height of the loading area for loading. While utilizing the lower space of the equipment, the Z-direction stroke of the transfer robot can be shortened, and the structure of the equipment can be kept compact; thirdly, the upper film part is directly arranged on the transfer robot, and the film tearing movement can be directly realized with the help of the movement of the transfer robot, so the structure of the gluing equipment can be simplified while realizing film tearing.

[0016] Preferably, the transverse transfer module and the lifting transfer module are both cylinder structures; each group of the storage boxes is connected to a transfer slide, the transfer slide located above is connected to the output end of the transverse transfer module, and the transfer slide located below is connected to the output end of the lifting transfer module, and an intermediate connecting seat is provided between the lifting transfer module and the transverse transfer module, and the intermediate connecting seat is connected to the output end of the transverse transfer module, and the intermediate connecting seat is provided for the installation of the lifting transfer module.

[0017] By adopting the above technical solution, since large quantities of double-sided tape are transported, the requirements for the transport position of the double-sided tape are not high, so a cylinder is used to move the storage box, and a simpler structure can be used to achieve large-scale and rapid transfer of double-sided tape.

[0018] Preferably, a lifting guide rod is slidably passed through the intermediate connecting seat, and the lifting guide rod is connected to the transfer slide.

[0019] By adopting the above technical solution, since the range of multiple storage boxes will be much larger than the end face range of the piston rod of the lifting and transfer module, the setting of the lifting guide rod can increase the connection area between the intermediate transfer seat and the transfer slide, thereby improving the lifting stability of the intermediate transfer seat.

[0020] Preferably, one of the transfer robots includes a three-axis moving module and a plurality of material picking arms, and the material picking arms use vacuum adsorption to pick up materials.

[0021] By adopting the above technical solution, the three-axis mobile module can realize the free movement of the material picking arm while maintaining the transfer accuracy. The material picking arm uses vacuum adsorption to achieve material picking without damaging the workpiece.

[0022] Preferably, the material picking hand of the initial transfer part includes an initial installation part, an initial installation mouth plate, a suction nozzle, an over-suction detection block and an over-suction detection grating. The initial installation part is connected to the three-axis moving module, and the initial installation mouth plate is vertically slidably connected to the initial installation part. The suction nozzle is arranged on the initial installation mouth plate, the over-suction detection block is arranged on the initial installation mouth plate, and the over-suction detection grating is arranged on the initial installation part. The over-suction detection grating cooperates with the over-suction detection block to limit the minimum distance between the initial installation mouth plate and the initial installation part.

[0023] By adopting the above technical solution, the three-axis moving module allows the suction nozzle to gradually approach the double-sided tape when the material picking arm moves downward. The double-sided tape can be taken out after the suction nozzle contacts the double-sided tape. However, since the double-sided tape is relatively thin and multiple double-sided tapes are stacked, if the material picking arm continues to move downward after the suction nozzle contacts the top layer of double-sided tape, the initial installation nozzle plate will gradually approach the initial installation part. In this process, the pressure of the suction nozzle on the double-sided tape will gradually increase. If the pressure is too great, the double-sided tape on the lower layer will also be sucked up. Therefore, the cooperation between the over-suction detection block and the over-suction detection grating can be used to prevent the occurrence of excessive double-sided tape suction.

[0024] Preferably, the lower film connecting member is in a clamping cylinder structure, and a tear-assisting rotary cylinder is provided between the lower film connecting member and the frame, and the tear-assisting rotary cylinder rotates the lower film connecting member.

[0025] By adopting the above technical solution, compared with the method of clamping the light film by the lower film connecting part and tearing the film only by moving the material picking hand, with this design method, when tearing off the lower layer of light film, the material picking hand can apply an upward force to the upper layer of light film and the glue layer, and the tearing-assisting rotating cylinder cooperates with the lower film connecting part to apply a downward and backward torque to the lower layer of light film, which makes the tearing of the lower layer of light film smoother, and it is not easy to cause the glue layer to deform or the light film to be torn due to tearing the film.

[0026] Preferably, the three-axis moving module of the final transfer part is arranged along the distribution direction of multiple functional areas of the frame, and the X-direction moving module is connected to a supplementary moving module, a lifting cylinder and a compatible slider. The supplementary moving module is arranged on the frame, and the driving direction of the supplementary moving module is parallel to the driving direction of the X-direction moving module; the supplementary moving module is rotatably connected to one end of the X-direction moving module close to the loading area; the housing of the lifting cylinder is connected to the frame, and the piston rod of the lifting cylinder is connected to the end of the X-direction moving module away from the loading area; one side of the compatible slider is slidably connected to the X-direction moving module, and the sliding direction is parallel to the length direction of the X-direction moving module, and the other side of the compatible slider is rotatably connected to the piston rod of the lifting cylinder.

[0027] By adopting the above technical solution, when the lower layer of light film is peeled off in the film tearing area, the lower film connecting part cooperates with the tearing-assisting rotary cylinder to apply a downward torque to the lower layer of light film. At this time, under the action of the supplementary moving module and the lifting cylinder, the X-axis moving module can be made to move in an oblique upward arc to apply an oblique upward torque to the upper layer of light film and the adhesive layer. This film tearing method is closest to manual film tearing, so it can make the peeling of the light film smoother and less likely to cause the light film to be torn. In addition, the up and down swinging method of the X-axis moving module can also allow one end of the double-sided tape to be attached to the battery cell first and the other end to be attached to the battery cell last when the glue is finally applied. This can not only make the application more flat, but also adapt to film-applying areas with different undulating structures.

[0028] Preferably, the frame is rotatably provided with a rubber cutting roller at a position between the film tearing area and the core attaching area, the rubber cutting roller is arranged adjacent to the film tearing area, and the rubber cutting roller is located above the lower film connecting member.

[0029] By adopting the above technical solution, when the X-axis moving module swings upward to complete the film tearing, the double-sided tape can also pass through the cutting roller. Since it moves in an arc through the cutting roller, the cutting process of the adhesive layer can be achieved more simply, thereby achieving more diverse processes with fewer actions.

[0030] Preferably, the material picking hand of the final transfer part includes a final mounting part, an adsorption plate, a pressure-maintaining spring, a protection detection block and a protection detection grating. The final mounting part is connected to the three-axis moving module, and the adsorption plate is vertically slidably connected to the final mounting part. The pressure-maintaining spring is divided into a part connecting the final mounting part and the adsorption plate. The protection detection block is arranged on the adsorption plate, and the protection detection grating is arranged on the final mounting part. The protection detection grating cooperates with the protection detection block to limit the minimum distance between the adsorption plate and the final mounting part.

[0031] By adopting the above technical solution, while taking the material, the pressure-maintaining spring can use the adsorption plate to evenly apply pressure to the double-sided tape, so that the double-sided tape is evenly laid on the battery cell. At the same time, the cooperation between the protection detection block and the protection detection grating can prevent the material-taking hand from over-pressing the battery cell and damaging the battery cell.

[0032] Preferably, the upper film connecting part includes an auxiliary sticking cylinder and a film clamping cylinder, the auxiliary sticking cylinder is connected to the final transfer part, and the piston rod of the auxiliary sticking cylinder is horizontally telescopically arranged; the shell of the film clamping cylinder is connected to the piston rod of the auxiliary sticking cylinder, and the film clamping cylinder is a clamping cylinder structure; one of the material picking hands is provided with two upper film connecting parts, and the two upper film connecting parts are symmetrically arranged relative to the center of the material picking hand.

[0033] By adopting the above technical solution, the auxiliary sticking cylinder not only allows the clamping end of the film clamping cylinder to enter and exit the area where the light film is located, but also allows the auxiliary sticking cylinder to apply a pulling force from the center of the double-sided tape outward when the film clamping cylinder clamps the light film, so that the double-sided tape can be more evenly attached to the battery cell. At the same time, the two centrally symmetrical upper film connecting parts can make the outward tension on the double-sided tape more uniform. In addition, when tearing off the upper light film subsequently, it can be torn off simultaneously from front to back, so that the peeling of the upper light film is smoother.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. First, the two transfer robots can each take on part of the transfer work. When the positioning platform is working, the initial transfer part can remove a set of double-sided tape. In this way, the processing time axes of the front and rear sets of double-sided tape overlap, thereby improving the efficiency of the gluing work. Second, when one set of storage boxes is in the loading area for loading, the other set of storage boxes can be in the operation area for staff to prepare materials. Therefore, there will be no situation where there is no material available in the loading area of ​​the equipment, thereby improving the working efficiency of the gluing equipment. The other two sets of storage boxes are both at the same height of the loading area for loading. While utilizing the lower space of the equipment, the Z-direction stroke of the transfer robot can be shortened, and the structure of the equipment can be kept compact. Third, the upper film connecting part is directly arranged on the transfer robot, and the film tearing movement can be directly realized by the movement of the transfer robot. Therefore, while realizing film tearing, the structure of the gluing equipment can be simplified.

[0036] 2. When peeling the lower layer of film in the film tearing area, the lower film connecting part cooperates with the tearing-assisting rotary cylinder to apply a downward torque to the lower layer of film. At this time, under the action of the supplementary moving module and the lifting cylinder, the X-axis moving module can be made to move in an oblique upward arc to apply an oblique upward torque to the upper layer of film and the adhesive layer. This film tearing method is closest to manual film tearing, so it can make the film peeling smoother and less likely to be torn. In addition, the up and down swinging method of the X-axis moving module can also allow one end of the double-sided tape to be attached to the battery cell first and the other end to be attached to the battery cell last when the glue is finally applied. This can not only make the application smoother, but also adapt to the film application areas with different undulating structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is an overall structural diagram of the battery cell gluing equipment in the embodiment of the present application.

[0038] Figure 2 This is a schematic diagram used to illustrate the specific structure of the positioning platform in the embodiment of the present application.

[0039] Figure 3 This is a schematic diagram showing how two groups of material storage boxes are driven in an embodiment of the present application.

[0040] Figure 4 This is a schematic diagram showing the specific structure of the material picker in the primary transfer unit in the embodiment of the present application.

[0041] Figure 5 This is a schematic diagram used to illustrate the coordination structure between the lower connecting membrane and the frame in the embodiment of the present application.

[0042] Figure 6 This is a schematic diagram showing how the final transfer portion swings up and down in the embodiment of the present application.

[0043] Figure 7 This is a schematic diagram showing the status of various parts of the double-sided tape when peeling off the lower light film in the embodiment of the present application.

[0044] Figure 8 This is a schematic diagram showing the specific structure of the material picker of the final transfer part in the embodiment of the present application.

[0045] Explanation of reference numerals: 1. Frame; 11. Operation area; 12. Loading area; 13. Positioning area; 14. Film tearing area; 15. Core sticking area; 2. Material storage box; 21. Transverse transfer module; 22. Lifting transfer module; 23. Transfer slide; 24. Intermediate connecting seat; 25. Lifting guide rod; 3. Positioning platform; 31. Fixed block; 32. Push block; 4. Transfer robot; 41. Primary transfer unit; 411. Primary installation unit; 412. Primary nozzle plate; 413. Suction nozzle; 414. Over-suction detection block; 415, over-suction detection grating; 42, final transfer part; 421, final installation part; 422, adsorption plate; 423, pressure-maintaining spring; 424, protection detection block; 425, protection detection grating; 43, three-axis moving module; 44, material picking arm; 5, X-axis moving module; 51, supplementary moving module; 52, lifting cylinder; 53, compatible slider; 6, lower film connecting part; 61, tearing-assisting rotating cylinder; 7, upper film connecting part; 71, sticking-assisting cylinder; 72, film clamping cylinder. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-8 This application is described in further detail.

[0047] The embodiment of the present application discloses a battery cell gluing device.

[0048] Reference Figure 1The battery cell gluing equipment includes a rack 1, a storage box 2, a positioning platform 3, a transfer robot 4, a lower film connecting part 6 and an upper film connecting part 7. The rack 1 is divided into an operation area 11, a loading area 12, a positioning area 13, a film tearing area 14 and a core sticking area 15 according to different installation functions. In the operation area 11, the staff can prepare the materials, that is, the double-sided tape can be put into the storage element of the equipment. In the loading area 12, the double-sided tape will be taken out from the storage element and transferred to other functional areas. In the positioning area 13, the double-sided tape will be positioned, that is, the posture and position of the double-sided tape in the reference system of the equipment will be corrected. In the film tearing area 14, the lower layer of the double-sided tape will be torn off. In the core sticking area 15, the double-sided tape will be stuck on the battery cell. At the same time, the upper layer of the double-sided tape will be torn off after the battery cell is stuck.

[0049] Reference Figure 1 The storage box 2 is roughly in the shape of a rectangular parallelepiped with grooves, and one storage box 2 can be stacked to accommodate multiple double-sided tapes. Multiple storage boxes 2 are distributed in two groups along the vertical direction according to different distribution positions. The two groups of storage boxes 2 are both connected to a transverse transfer module 21, and the transverse transfer module 21 transfers the storage box 2 between the operation area 11 and the loading area 12 by horizontal movement. In addition, the storage box 2 located at the bottom is also connected to a lifting transfer module 22, which is connected to the transverse transfer module 21. The lifting transfer module 22 moves the storage box 2 up to a predetermined height of the loading area 12 by vertical movement. In general, one group of storage boxes 2 only moves horizontally between the operation area 11 and the loading area 12, and the other group of storage boxes 2 only moves up and down at the loading area 12, but most of the time the horizontal movement is at the bottom, so it can be considered that the two groups of storage boxes 2 are distributed in the vertical direction, so the upper and lower parts will be used to distinguish the two groups of storage boxes 2 in the following.

[0050] Reference Figure 1 and Figure 2 The positioning platform 3 is set in the positioning area 13, and the positioning platform 3 will calibrate and adjust the double-sided tape. Specifically, the positioning platform 3 is equipped with two fixed blocks 31 and two push blocks 32 in conjunction with a double-sided tape. The two fixed blocks 31 and the two push blocks 32 surround one double-sided tape. The fixed block 31 is fixedly set, and the two fixed blocks 31 are adjacent to each other. The push blocks 32 are slidably set by the cylinder, and the two push blocks 32 are adjacent to each other. When performing positioning correction, the double-sided tape is first placed in the middle of the two fixed blocks 31 and the two push blocks 32, and then the push blocks 32 are moved toward the direction close to the opposite fixed blocks 31 until the four sides of the double-sided tape are in contact with the two fixed blocks 31 and the two push blocks 32, thereby realizing the correction of the double-sided tape in the reference system where the equipment is located.

[0051] Reference Figure 1The transfer robot 4 is connected to the frame 1 in a three-axis manner. There are two transfer robots 4, one is the initial transfer part 41, and the other is the final transfer part 42. The initial transfer part 41 transfers the double-sided tape from the loading area 12 to the positioning area 13, and the final transfer part 42 transfers the workpiece from the positioning area 13 to the film tearing area 14 and the core sticking area 15 in sequence; the lower film connecting part 6 is arranged in the film tearing area 14, and the lower film connecting part 6 will be connected to the lower layer of the double-sided tape, and cooperate with the final transfer part 42 to realize the peeling of the lower layer of the film; the upper film connecting part 7 is arranged on the final transfer part 42, and the upper film connecting part 7 will be connected to the upper layer of the double-sided tape, and cooperate with the final transfer part 42 to realize the peeling of the upper layer of the film.

[0052] Reference Figure 1 In summary, the glue sticking equipment has the following advantages: first, the two transfer manipulators 4 can each undertake a part of the transfer work. When the positioning platform 3 is working, the initial transfer part 41 can remove a group of double-sided tapes, so that the processing time axes of the front and rear groups of double-sided tapes overlap, thereby improving the efficiency of the glue sticking work; second, when one group of material storage boxes 2 is in the loading area 12 for loading, the other group of material storage boxes 2 can be in the operation area 11 to allow the staff to prepare materials, so there will be no situation where there is no material available in the loading area 12 of the equipment, so the working efficiency of the glue sticking equipment can be improved. The other two groups of material storage boxes 2 are all at the same height of the loading area 12 for loading work. While utilizing the lower space of the equipment, the Z-direction stroke of the transfer manipulator 4 can be shortened, and the structure of the equipment can be kept compact; third, the upper film connecting part 7 is directly arranged on the transfer manipulator 4, and the film tearing movement can be directly realized by the movement of the transfer manipulator 4, so the structure of the glue sticking equipment can be simplified while realizing film tearing.

[0053] Reference Figure 1 and Figure 3When the glue sticking equipment is working, it will process multiple double-sided tapes at the same time, that is, multiple double-sided tapes will be transferred from the loading area 12 to other functional areas such as the positioning area 13, and this number will not be just two, it may be three or even four. Taking four as an example, the arrangement direction of the four storage boxes 2 is horizontal, but the arrangement direction is perpendicular to the connection direction between the multiple functional areas on the rack 1, and the movement accuracy of the storage boxes 2 between the operation area 11 and the loading area 12 is not high. Therefore, in order to realize the rapid and large-scale transportation of double-sided tapes, the following settings are correspondingly arranged. The transverse transfer module 21 and the lifting transfer module 22 are both cylinder structures, in which the transverse transfer module 21 and the lifting transfer module 22 are cylinder structures. The transfer module 21 uses a pen-shaped cylinder, and the lifting transfer module 22 uses a lifting cylinder. At the same time, each group of storage boxes 2 is connected to a transfer slide 23, and the transfer slide 23 is slidably connected to the frame 1. The transfer slide 23 located above is connected to the piston rod of the transverse transfer module 21, and the transfer slide 23 located below is connected to the piston rod of the lifting transfer module 22. An intermediate connecting seat 24 is arranged between the lifting transfer module 22 and the transverse transfer module 21, and the intermediate connecting seat 24 is connected to the piston rod of the transverse transfer module 21. The intermediate connecting seat 24 is provided for the installation of the lifting transfer module 22, so that a simple structure can be used to achieve large-scale double-sided tape transfer.

[0054] Reference Figure 1 and Figure 3 Since the range of multiple storage boxes 2 is much larger than the range of the piston rod end face of the lifting and transfer module 22, in order to improve the lifting stability of a group of storage boxes 2 located below, the intermediate connecting seat 24 is slidably penetrated by a lifting guide rod 25. There are four lifting guide rods 25 in total. The four lifting guide rods 25 are distributed in a rectangular array around the lifting and transfer module 22. The lifting guide rods 25 are connected to the guide rail structure, and the intermediate connecting seat 24 has a slide connected to the lifting guide rod 25. This can increase the connection area between the intermediate transfer seat and the transfer slide 23, thereby improving the lifting stability of the intermediate transfer seat.

[0055] Reference Figure 1 and Figure 4In this embodiment, each transfer robot 4 includes a three-axis mobile module 43 and multiple material picking hands 44, wherein the three-axis mobile module 43 can use a three-axis gantry slide, and the material picking hand 44 will use vacuum adsorption to pick up materials. One material picking hand 44 takes a double-sided tape. Considering that the initial transfer part 41 only plays a simple transportation role, the freedom of picking up the double-sided tape is higher. Therefore, the material picking hand 44 of the initial transfer part 41 includes an initial installation part 411, an initial installation nozzle plate 412, a suction nozzle 413, an over-suction detection block 414 and an over-suction detection grating 415. The initial installation part 411 is connected to the three-axis mobile module 43, and the initial installation nozzle plate 412 is connected to the cylindrical guide rod. The initial installation part 411 is vertically slidably connected, and the suction nozzle 413 is arranged on the initial installation nozzle plate 412. There will be four suction nozzles 413, and the four suction nozzles 413 are evenly distributed. The over-suction detection block 414 is fixedly installed on the initial installation nozzle plate 412. The over-suction detection block 414 is a bent sheet metal structure. The over-suction detection block 414 is away from the end of the initial installation nozzle plate 412 toward the initial installation part 411. The over-suction detection grating 415 is fixed on the initial installation part 411. The over-suction detection grating 415 adopts a slot-type photoelectric sensor. The over-suction detection grating 415 cooperates with the over-suction detection block 414. When the over-suction detection block 414 enters the slot of the over-suction detection grating 415, it will limit the initial installation nozzle plate 412 from continuing to approach the initial installation part 411.

[0056] Reference Figure 1 and Figure 4 When taking materials, the three-axis moving module 43 will move the material taking hand 44 downward so that the suction nozzle 413 will gradually approach the double-sided tape. After the suction nozzle 413 contacts the double-sided tape, the double-sided tape can be taken out. However, since the double-sided tape is relatively thin and multiple double-sided tapes are stacked, if the material taking hand 44 continues to move downward after the suction nozzle 413 contacts the top layer of double-sided tape, the initial installation nozzle plate 412 will gradually approach the initial installation part 411. In this process, the pressure of the suction nozzle 413 on the double-sided tape will gradually increase. If the pressure is too great, the double-sided tape on the lower layer will also be sucked up. Therefore, the cooperation between the over-suction detection block 414 and the over-suction detection grating 415 can be used to prevent the occurrence of excessive double-sided tape suction.

[0057] Reference Figure 1 and Figure 5When the film tearing area 14 is performing the film tearing process, the ideal situation is to let the upper light film and the adhesive layer be wound upward and backward, and the lower light film be wound downward and backward. In order to be closer to this manual film tearing mode, the following settings are correspondingly made. First, the lower film connecting part 6 is realized by a clamping cylinder. At the same time, a tearing-assisting rotating cylinder 61 is installed between the lower film connecting part 6 and the frame 1. The rotating table of the tearing-assisting rotating cylinder 61 is connected to a crossbeam, and the crossbeam is provided for multiple lower film connecting parts 6. A lower film connecting part 6 is matched with a lower light film of a double-sided adhesive tape, so that the tearing-assisting rotating cylinder 61 can make the lower film connecting part 6 rotate, and also can apply a downward and backward torque to the lower light film, which can make the tearing of the lower light film smoother.

[0058] Reference Figure 1 and Figure 6 Secondly, in order to allow the upper light film and the adhesive layer to be wound close to upward and backward when tearing off the lower light film, the three-axis moving module 43 of the final transfer part 42 will be optimized. Among them, the three-axis moving module 43 of the final transfer part 42 is arranged along the distribution direction of multiple functional areas of the frame 1 as an X-phase moving module. Specifically, the X-direction moving module 5 is connected to a supplementary moving module 51, a lifting cylinder 52 and a compatible slider 53. The supplementary moving module 51 is fixedly installed on the frame 1, and the supplementary moving module 51 uses a motor The slide, the driving direction of the supplementary moving module 51 is parallel to the driving direction of the X-direction moving module 5, the supplementary moving module 51 is rotatably connected to one end of the X-direction moving module 5 close to the loading area 12, and the rotating axis is horizontally arranged but perpendicular to the connection direction of multiple functional areas of the frame 1. Specifically, the supplementary moving module 51 is located below the X-direction moving module 5, and the slide of the supplementary moving module 51 is glued to the guide rail of the X-direction moving module 5 so that the X-direction moving module 5 can swing up and down, thereby forming the structural basis for the required movement.

[0059] Reference Figure 1 and Figure 6, the shell of the lifting cylinder 52 is fixedly connected to the frame 1, the lifting cylinder 52 is located below the X-direction moving module 5, and the piston rod of the lifting cylinder 52 is connected to the end of the X-direction moving module 5 away from the loading area 12; one side of the compatible slider 53 is slidably connected to the lower side of the X-direction moving module 5, and the sliding direction is parallel to the length direction of the X-direction moving module 5. The other side of the compatible slider 53 is hinged to the piston rod of the lifting cylinder 52, and the hinge axis is horizontally arranged but perpendicular to the connection direction of multiple functional areas of the frame 1, so that the X-direction moving The rotation of the movable module 5 is compatible with the telescopic movement of the piston rod of the lifting cylinder 52, so that the X-direction movable module 5 can be swung up and down by the lifting cylinder 52. At the same time, in conjunction with the supplementary movable module 51, the X-direction movable module 5 can be made to move in an oblique upward arc, which will apply an oblique upward torque to the upper light film and the glue layer. This film tearing method is closest to manual film tearing. In summary, it can make the peeling of the lower light film more streamlined and is less likely to cause the glue layer to deform or the light film to be torn due to film tearing.

[0060] in, Figure 7 In the figure, A is the upper light film + glue layer, B is the lower light film, C is the movement path of the upper light film and glue layer during the film tearing process, and D is the movement path of the lower light film during the film tearing process. It can be seen from the figure that the curvature of the path C is not as large as that of the path D, that is, in actual operation, the tearing-assisting rotating cylinder 61 and the lower film connecting part 6 can be started first, and then the supplementary moving module 51 and the lifting cylinder 52 are started. After the lower light film is torn off a predetermined proportion, the angle between the glue layer and the lower light film is large enough, and the adhesive force exerted by the glue layer on the lower light film is also relatively small, so the speed of the subsequent X-direction moving module 5 moving forward can also be accelerated, so it can provide sufficient power for other subsequent processing. Therefore, based on this point, refer to Figure 1 and Figure 6 The frame 1 is rotatably provided with a rubber cutting roller at a position between the film tearing area 14 and the core attaching area 15. The rubber cutting roller is arranged to rotate horizontally. The rubber cutting roller is arranged adjacent to the film tearing area 14. The rubber cutting roller is located above the lower film connecting part 6, that is, the rubber cutting roller is located obliquely above the lower film connecting part 6. When the X-direction moving module 5 swings upward to complete the film tearing, the double-sided tape can also pass through the rubber cutting roller. Since it passes through the rubber cutting roller in an arc motion, the incision processing of the adhesive layer can be achieved more simply, thereby achieving more diversified processes with fewer actions.

[0061] Reference Figure 1 and Figure 8, considering that the final transfer part 42 also needs to stick the double-sided tape on the battery cell, and the double-sided tape needs to be tightly attached to the battery cell, it is necessary to adopt a manipulator structure that can apply pressure, so the material picking hand 44 of the final transfer part 42 includes a final installation part 421, an adsorption plate 422, a pressure-maintaining spring 423, a protection detection block 424 and a protection detection grating 425. The final installation part 421 is connected to the three-axis moving module 43, the adsorption plate 422 uses a square suction cup, and the adsorption block is connected to the final installation part 421 vertically in a sliding manner through a cylindrical guide rod. The pressure-maintaining spring 423 is connected to the three-axis moving module 43. 23 is divided into a connection terminal installation portion 421 and an adsorption plate 422, a protection detection block 424 is fixedly mounted on the adsorption plate 422, the protection detection block 424 is in the shape of a bent sheet metal, and one end of the protection detection block 424 away from the adsorption plate 422 extends toward the terminal installation portion 421, and a protection detection grating 425 is fixedly mounted on the terminal installation portion 421. The protection detection grating 425 uses a slot-type photoelectric sensor. When the protection detection block 424 enters the slot of the protection detection grating 425, it will limit the adsorption plate 422 from continuing to approach the terminal installation portion 421.

[0062] Reference Figure 1 and Figure 8 While taking the material, the pressure-maintaining spring 423 can use the adsorption plate 422 to evenly apply pressure to the double-sided tape, so that the double-sided tape is evenly laid on the battery cell. At the same time, the cooperation between the protection detection block 424 and the protection detection grating 425 can prevent the material-taking hand 44 from over-pressuring the battery cell and damaging the battery cell.

[0063] Reference Figure 1 and Figure 8 In order to make the double-sided tape stick more smoothly on the battery cell, the following settings are correspondingly arranged: the upper film connecting part 7 includes an auxiliary sticking cylinder 71 and a film clamping cylinder 72. The auxiliary sticking cylinder 71 is connected to the final installation part 421 of the final transfer part 42. The piston rod of the auxiliary sticking cylinder 71 is horizontally telescopically arranged. The film clamping cylinder 72 is a clamping cylinder structure. The shell of the film clamping cylinder 72 is connected to the piston rod of the auxiliary sticking cylinder 71. A hand-adjustable screw-type linear slide will be installed between the shell of the film clamping cylinder 72 and the piston rod of the auxiliary sticking cylinder 71 to be compatible with the assembly error of the equipment.

[0064] Reference Figure 1 and Figure 8 The auxiliary sticking cylinder 71 not only allows the clamping end of the film clamping cylinder 72 to enter and exit the area where the light film is located, but also allows the auxiliary sticking cylinder 71 to apply a pulling force from the center of the double-sided tape outward when the film clamping cylinder 72 clamps the light film, so that the double-sided tape can be more evenly attached to the battery cell. At the same time, a material picking hand 44 is provided with two upper film connecting parts 7, and the two upper film connecting parts 7 are symmetrically arranged relative to the center of the material picking hand 44, so that the outward tension exerted on the double-sided tape can be more uniform. In addition, when tearing off the upper light film later, it can be torn off simultaneously front and back to make the peeling of the upper light film smoother.

[0065] Reference Figure 6 and Figure 8 In addition, in other embodiments, if the length of the double-sided tape along the direction of multiple functional areas of the rack 1 is too long, when the double-sided tape is finally attached to the battery cell, the X-axis moving module 5 can be swung up and down to allow the final transfer part 42 to first attach one end of the double-sided tape to the battery cell and then the other end to the battery cell. This can make the tape more flat and can also adapt to film-attaching areas with different undulating structures.

[0066] The implementation principle of the battery cell gluing equipment of the embodiment of the present application is as follows: first, the two transfer robots 4 can each undertake a part of the transfer work. When the positioning platform 3 is working, the initial transfer part 41 can remove a group of double-sided tapes, so that the processing time axes of the front and rear groups of double-sided tapes are overlapping, thereby improving the efficiency of the gluing work. Second, when one group of material storage boxes 2 is in the loading area 12 for loading, the other group of material storage boxes 2 can be in the operation area 11 to allow the staff to prepare materials, so there will be no situation where there is no material available in the loading area 12 of the equipment, so the working efficiency of the gluing equipment can be improved. The other two groups of material storage boxes 2 are all at the same height of the loading area 12 for loading. While utilizing the lower space of the equipment, the Z-direction stroke of the transfer robot 4 can be shortened, and the structure of the equipment can be kept compact. Third, the upper film connecting part 7 is directly arranged on the transfer robot 4, and the film tearing movement can be directly realized by the movement of the transfer robot 4, so the structure of the gluing equipment can be simplified while realizing film tearing.

[0067] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A battery cell gluing device, characterized by: include: The frame (1) is divided into an operation area (11), a loading area (12), a positioning area (13), a film tearing area (14) and a core attaching area (15) in sequence along the horizontal direction; A plurality of material storage boxes (2) are arranged in two groups in a vertical direction. The two groups of material storage boxes (2) are both connected to a transverse transfer module (21) for transferring the material storage boxes (2) between the operating area (11) and the loading area (12). The material storage box (2) located at the bottom is also connected to a lifting transfer module (22), and the lifting transfer module (22) is connected to the transverse transfer module (21); A positioning platform (3) is provided at the positioning area (13) and is used for calibrating and adjusting the workpiece; Two transfer manipulators (4) are connected to the frame (1) in a three-axis movable manner, and are divided into an initial transfer part (41) for transferring the workpiece from the loading area (12) to the positioning area (13) and a final transfer part (42) for transferring the workpiece from the positioning area (13) to the film tearing area (14) and the core attaching area (15) in sequence; A lower film connecting member (6) is arranged at the film tearing area (14); An upper film connecting member (7) is provided on the final transfer portion (42); The transfer manipulator (4) includes a three-axis moving module (43) and a plurality of material picking hands (44), and the material picking hands (44) adopt vacuum adsorption to pick up materials; The lower film connecting member (6) is in a clamping cylinder structure, and a tearing-assisting rotating cylinder (61) is provided between the lower film connecting member (6) and the frame (1), and the tearing-assisting rotating cylinder (61) enables the lower film connecting member (6) to be rotated. The three-axis moving module (43) of the final transfer part (42) is provided with an X-direction moving module (5) along the distribution direction of the multiple functional areas of the frame (1). The X-direction moving module (5) is connected to a supplementary moving module (51), a lifting cylinder (52) and a compatible slider (53). The supplementary moving module (51) is provided on the frame (1). The driving direction of the supplementary moving module (51) is parallel to the driving direction of the X-direction moving module (5); the supplementary moving module (51) is parallel to the driving direction of the X-direction moving module (5). The module (5) is rotatably connected to one end close to the loading area (12); the shell of the lifting cylinder (52) is connected to the frame (1), and the piston rod of the lifting cylinder (52) is connected to one end of the X-direction moving module (5) away from the loading area (12); one side of the compatible slider (53) is slidably connected to the X-direction moving module (5), and the sliding direction is parallel to the length direction of the X-direction moving module (5), and the other side of the compatible slider (53) is rotatably connected to the piston rod of the lifting cylinder (52).

2. The battery cell gluing equipment according to claim 1, characterized in that: The transverse transfer module (21) and the lifting transfer module (22) are both cylinder structures; each group of the storage boxes (2) is connected to a transfer slide (23), the transfer slide (23) located above is connected to the output end of the transverse transfer module (21), and the transfer slide (23) located below is connected to the output end of the lifting transfer module (22), and an intermediate connecting seat (24) is provided between the lifting transfer module (22) and the transverse transfer module (21), the intermediate connecting seat (24) is connected to the output end of the transverse transfer module (21), and the intermediate connecting seat (24) is provided for the installation of the lifting transfer module (22).

3. The battery cell gluing equipment according to claim 2, characterized in that: The intermediate connecting seat (24) is slidably provided with a lifting guide rod (25), and the lifting guide rod (25) is connected to the transfer slide seat (23).

4. The battery cell gluing equipment according to claim 1, characterized in that: The material picking hand (44) of the initial transfer part (41) includes an initial installation part (411), an initial installation nozzle plate (412), a suction nozzle (413), an over-suction detection block (414) and an over-suction detection grating (415), the initial installation part (411) is connected to the three-axis moving module (43), the initial installation nozzle plate (412) is vertically slidably connected to the initial installation part (411), the suction nozzle (413) is arranged on the initial installation nozzle plate (412), the over-suction detection block (414) is arranged on the initial installation nozzle plate (412), the over-suction detection grating (415) is arranged on the initial installation part (411), and the over-suction detection grating (415) cooperates with the over-suction detection block (414) to limit the minimum distance between the initial installation nozzle plate (412) and the initial installation part (411).

5. The battery cell gluing equipment according to claim 1, characterized in that: The frame (1) is rotatably provided with a rubber cutting roller at a position between the film tearing area (14) and the core attaching area (15). The rubber cutting roller is arranged adjacent to the film tearing area (14) and is located above the lower film connecting member (6).

6. The battery cell gluing equipment according to claim 1, characterized in that: The material picking hand (44) of the final transfer part (42) includes a final installation part (421), an adsorption plate (422), a pressure-maintaining spring (423), a protection detection block (424) and a protection detection grating (425). The final installation part (421) is connected to the three-axis moving module (43), the adsorption plate (422) is vertically slidably connected to the final installation part (421), the pressure-maintaining spring (423) is divided into a connection between the final installation part (421) and the adsorption plate (422), the protection detection block (424) is arranged on the adsorption plate (422), the protection detection grating (425) is arranged on the final installation part (421), and the protection detection grating (425) cooperates with the protection detection block (424) to limit the minimum distance between the adsorption plate (422) and the final installation part (421).

7. The battery cell gluing equipment according to claim 1, characterized in that: The upper film connecting member (7) includes an auxiliary sticking cylinder (71) and a film clamping cylinder (72), the auxiliary sticking cylinder (71) is connected to the final transfer part (42), and the piston rod of the auxiliary sticking cylinder (71) is arranged to be horizontally telescopic; the shell of the film clamping cylinder (72) is connected to the piston rod of the auxiliary sticking cylinder (71), and the film clamping cylinder (72) is a clamping cylinder structure; one of the material picking hands (44) is provided with two upper film connecting members (7), and the two upper film connecting members (7) are arranged symmetrically relative to the center of the material picking hand (44).

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