Z-shaped lamination machine and lamination manufacturing method

Abstract

The invention discloses a Z-shaped laminating machine and a laminating manufacturing method. The laminating machine is based on the laminating method of laminating by moving the laminating table. The positive and negative electrode sheets are respectively transported from a vacuum belt to the grabbing position of a swing arm machine. The swing arm manipulator absorbs the electrode sheets, rotates them ninety degrees and places them on the laminating table. During the process, a layer of diaphragm is first stacked on the laminating plate on the laminating table and then clamped. The lightweight design reduces the weight and greatly reduces the inertia. When the laminating table is switched, the movement amount can be minimized according to the change of the size of the battery cell, the operating efficiency is improved, the vibration problem of the equipment is reduced, and the noise is reduced. The laminating table can descend at a high speed during the laminating process to consume excess diaphragm, so that the diaphragm does not need to be retracted during the laminating process, which solves the problems of excessive impact and excessive instantaneous acceleration of the diaphragm during the unwinding process, avoids large fluctuations in the diaphragm tension, ensures the stability of the diaphragm unwinding, and greatly improves the unwinding speed.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed lamination manufacturing, in particular to a Z-shaped lamination machine and a lamination manufacturing method. Background Art

[0002] There are various Z-shaped stacking machines on the market. There are three main Z-shaped stacking manufacturing methods. One is that the stacking table is fixed, and the stacking robot and the diaphragm dividing roller mechanism move left and right at the same time to alternately stack the positive and negative electrodes. The second is the stacking table switching method. The diaphragm dividing mechanism is fixed, and the stacking machine and the stacking table move to complete the stacking of positive and negative electrodes. The third is the stacking table swinging method. The diaphragm dividing roller is fixed, and the stacking robot stacks the positive and negative electrodes by swinging the arm. In these three stacking methods, the stacking speed has reached a bottleneck and can no longer be broken through. In the three methods, some of the stacking hands need to transport the electrodes over a long distance, and the acceleration borne by the mechanism reaches the upper limit. In some of the methods, the stacking table moves too far, the inertia is large, the equipment vibrates greatly, and the stacking efficiency is slow. In some of the methods, the distance for switching the diaphragm by the dividing roller mechanism is too long, resulting in too much excess diaphragm, and the diaphragm needs to be recovered too long, and the diaphragm unwinding speed cannot be increased. In some of the methods, the cost of the swinging mechanism is too high, the service life of the mechanism is short, and the stacking accuracy is poor. Therefore, it is urgent to provide a lamination manufacturing method to solve the above technical problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a Z-shaped stacking machine and a stacking manufacturing method, which solve the problems of low operating efficiency of the stacking machine and slow stacking efficiency.

[0004] The purpose of the present invention is achieved by adopting the following technical solutions:

[0005] According to one embodiment of the present invention, a lamination manufacturing method is provided, the method comprising: using a predefined material supply method, conveying the positive and negative electrode sheets to the grasping positions of the positive and negative electrode swing arm manipulators respectively, using the positive and negative electrode swing arm manipulators to absorb the positive and negative electrode sheets, rotating them ninety degrees and placing them on the positive and negative electrode deviation correction tables, using the negative electrode lamination manipulator to place the negative electrode sheet on the lamination table, clamping it with the diaphragm pre-placed on the lamination table, and then horizontally moving it to switch to the positive electrode lamination position;

[0006] When the stacking is switched, the positive and negative stacking manipulators are on both sides of the stacking table respectively. The positive and negative stacking manipulators and the stacking table switch left and right synchronously, and the diaphragm material dividing mechanism actively unwinds; the cycle stacking switches left and right to complete the positive and negative stacking of the battery cell;

[0007] After the battery cell stacking is completed, the Z axis of the stacking table descends to the unloading position, and the clamp robot clamps the battery cell out and transfers it to the glue fixture table;

[0008] The glue sticking fixture clamps the battery cell and glues the battery cell through the glue sticking mechanism;

[0009] After the battery cell glue is completed, the receiving robot moves the battery cell to the receiving table to complete the battery cell stacking process;

[0010] During the stacking switching process, the stacking table moves horizontally and vertically. The direction of movement is designed according to the diaphragm length to complete the trajectory movement.

[0011] in,

[0012] When stacking, first stack a layer of diaphragm on the stacking plate, then stack a layer of negative electrode, the stacking plate presses the negative electrode and diaphragm tightly, the stacking plate moves horizontally to switch to the positive electrode stacking position, and the diaphragm unwinding mechanism actively unwinds. When the stacking plate switches horizontally, the stacking plate press and the stacking plate descend at the same time to consume the excess diaphragm in the vertical direction.

[0013] In an exemplary embodiment, a negative electrode sheet is placed on a stacking table using a negative electrode stacking robot, and before being clamped with a diaphragm pre-placed on the stacking table, the process includes: stacking a layer of diaphragm on the upper surface of a stacking plate on the stacking table through a diaphragm unwinding mechanism, stacking the negative electrode sheet on top of the diaphragm, and using a stacking table press to press the negative electrode sheet and the diaphragm.

[0014] In an exemplary embodiment, the predefined material feeding methods include vacuum belt feeding and clip feeding;

[0015] The positions of the positive and negative electrode sheets placed on the positive and negative electrode correction tables are detected and determined using a CCD visual positioning device.

[0016] In an exemplary embodiment, during the gluing process of the gluing mechanism on the battery cell, the battery cell is always kept in a clamped state.

[0017] According to one embodiment of the present invention, a Z-shaped laminating machine is provided for realizing the laminating manufacturing method as described above, comprising a main frame, a negative electrode vacuum belt is fixedly arranged on the top of the main frame, and a negative electrode laminating robot is arranged on the side of the negative electrode vacuum belt; a diaphragm unwinding mechanism is arranged on the right side of the top rear end of the main frame; a CCD visual positioning device is arranged on the left side of the diaphragm unwinding mechanism, and a negative electrode deviation correction platform is arranged directly below the CCD visual positioning device;

[0018] A positive electrode lamination manipulator and a positive electrode deviation correction platform are arranged in the middle of the top of the main frame; a gluing mechanism is arranged on the left side of the top of the main frame, a gluing fixture platform is arranged above the gluing mechanism, and a clamp manipulator is arranged on the left side of the top of the main frame and below the gluing mechanism;

[0019] A positive electrode vacuum belt is fixedly arranged on the top of the main frame and located on the right side of the glue sticking mechanism, a positive electrode swing arm manipulator is arranged on the top of the main frame and located on the side of the positive electrode vacuum belt, and an NG electrode sheet material box is arranged on the top of the main frame and located on the right side of the positive electrode swing arm manipulator;

[0020] A negative pole swing arm manipulator is arranged on the top of the main frame and below the diaphragm unwinding mechanism, and a lamination table is arranged directly below the diaphragm unwinding mechanism.

[0021] Preferably, the negative electrode lamination robot and the positive electrode lamination robot are respectively arranged on both sides of the lamination table, and are used to provide positive electrode sheets and negative electrode sheets to the lamination table. Their movement directions are parallel to the moving direction of the lamination table, and they switch left and right synchronously with the lamination table.

[0022] Preferably, the diaphragm unwinding mechanism includes a vertical plate, which is fixedly connected to the main frame, and an unwinding motor is fixedly arranged on the right side of the bottom rear end of the vertical plate, and the output end of the unwinding motor passes through the front wall of the vertical plate, and two air inflation shafts are arranged at the front part of the vertical plate, the rear end of the left air inflation shaft is rotatably connected to the middle of the upper front end of the vertical plate, and the rear end of the right air inflation shaft is fixedly connected to the output end of the unwinding motor, a tension sensor is arranged at the upper right part of the front end of the vertical plate, a tension driving motor is arranged at the left side of the rear end of the vertical plate, a tension roller is arranged at the upper left part of the front end of the vertical plate, a buffer roller is arranged at the front end of the vertical plate and located on the left side of the tension roller, a diaphragm transition roller is arranged at the front end of the vertical plate and located below the buffer roller, a material distribution roller is arranged at the front end of the vertical plate and located below the diaphragm transition roller, a material distribution roller is arranged at the front end of the vertical plate and located below the diaphragm transition roller, a deviation correction sensor is arranged at the front end of the vertical plate and located below the material distribution roller, a control box is arranged at the front end of the vertical plate and located below the tension sensor, and a diaphragm is arranged on the outside of the air inflation shaft.

[0023] Preferably, the positive electrode stacking robot includes three supporting columns, a robot base is arranged between the tops of the three supporting columns, a linear motor is arranged at the front end of the robot base, a first servo motor is arranged at the upper parts of the left and right sides of the front end of the robot base, a buffer cylinder is arranged at the front end of the robot base and below the first servo motor, a film picking arm is arranged at the front end of the robot base and below the buffer cylinder, a stacking suction plate is arranged at the front end of the robot base and below the film picking arm, and a high-speed drag chain is arranged at the front end of the robot base and to the right of the stacking suction plate.

[0024] Preferably, the positive electrode correction platform includes a profile, a base plate is arranged on the top of the profile, a second servo motor is arranged on the top right side of the base plate, a screw is arranged on the top of the base plate and on the left side of the second servo motor, a dust hood is arranged on the top right side of the base plate, a transparent suction plate is arranged on the top of the base plate and on the left side of the dust hood, a light source is arranged at the front end of the transparent suction plate, and an air suction pipe is arranged on the left side of the transparent suction plate.

[0025] Compared with the existing technology, it has obvious beneficial effects:

[0026] In a Z-shaped stacking machine and stacking manufacturing method provided by the present invention, the stacking table is lightweight in design, so that the weight is reduced and the inertia is greatly reduced. The switching stroke of the stacking table can be changed according to the size of the battery cell, the movement amount is minimized, the operating efficiency is improved, the equipment vibration problem is reduced, and the noise is reduced.

[0027] The stacking table can descend at high speed during the stacking process to consume excess diaphragm, so that the diaphragm does not need to be retracted during the stacking process. This solves the problem of excessive impact and instantaneous excessive acceleration of the diaphragm during the unwinding process, avoids large fluctuations in diaphragm tension, ensures the stability of diaphragm unwinding, and greatly improves the unwinding speed.

[0028] The stacking robot is parallel to the running direction of the stacking table. Under this layout, the positive and negative electrode stacking robots have the shortest transportation distance. Compared with the traditional shortened stroke, the stacking robot's transportation efficiency is improved, while reducing equipment vibration and noise.

[0029] After the battery cell stacking is completed, the stacking table is lowered as a whole to discharge the material from the bottom. In this way, when the unloading clamp robot unloads the battery cell, it will not affect the work of other mechanisms, thereby improving the operating efficiency of the equipment, reducing auxiliary time, and significantly improving the operating efficiency of the stacking machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A flow chart of a lamination manufacturing method provided for a specific embodiment of the present invention;

[0031] Figure 2 A three-dimensional diagram of a Z-shaped stacking machine provided for a specific embodiment of the present invention;

[0032] Figure 3 A front view of a Z-shaped stacking machine provided in a specific embodiment of the present invention;

[0033] Figure 4 A three-dimensional diagram of a diaphragm unwinding mechanism provided in a specific embodiment of the present invention;

[0034] Figure 5 A three-dimensional diagram of a positive electrode deflection correction station provided in a specific embodiment of the present invention;

[0035] Figure 6 A three-dimensional diagram of a positive electrode lamination robot provided for a specific embodiment of the present invention.

[0036] In the figure: 1. Main frame; 2. Negative electrode vacuum belt; 3. Negative electrode stacking manipulator; 4. Diaphragm unwinding mechanism; 41. Vertical plate; 42. Unwinding motor; 43. Air expansion shaft; 44. Tension sensor; 45. Tension drive motor; 46. Tension roller; 47. Buffer roller; 48. Diaphragm transition roller; 49. Material distribution roller; 410. Correction sensor; 411. Control box; 412. Diaphragm; 5. CCD visual positioning device; 6. Positive electrode stacking manipulator; 61. Support column; 62. Manipulator base; 63. Linear motor; 64. A servo motor; 65. Buffer cylinder; 66. Film taking arm; 67. Film stacking suction plate; 68. High-speed drag chain; 7. Positive electrode deviation correction table; 71. Profile; 72. Bottom plate; 73. Second servo motor; 74. Screw rod; 75. Dust hood; 76. Transparent suction plate; 77. Light source; 78. Suction pipe; 8. Glue sticking fixture table; 9. Glue sticking mechanism; 10. Clip manipulator; 11. Positive electrode vacuum belt; 12. Positive electrode swing arm manipulator; 14. NG electrode material box; 15. Film stacking table; 16. Negative electrode swing arm manipulator; 17. Negative electrode deviation correction table. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1 The present invention provides a technical solution: a lamination manufacturing method, which adopts a lamination table moving lamination method, and specifically includes the following steps:

[0039] S1 adopts a predefined material feeding method to convey the positive and negative electrode sheets to the grasping positions of the positive and negative electrode swing arm manipulators respectively, and uses the positive and negative electrode swing arm manipulators to respectively absorb the positive and negative electrode sheets, rotate them 90 degrees and place them on the positive and negative electrode deviation correction tables, and uses the negative electrode stacking manipulator to place the negative electrode sheet on the stacking table, clamp it with the diaphragm pre-placed on the stacking table, and then move horizontally to switch to the positive electrode stacking position;

[0040] S2 When the stacking is switched, the positive and negative stacking manipulators are on both sides of the stacking table respectively. The positive and negative stacking manipulators and the stacking table switch left and right synchronously, and the diaphragm material dividing mechanism actively unwinds; the cycle stacking switches left and right to complete the positive and negative stacking of the battery cell;

[0041] After the S3 battery cell stacking is completed, the Z axis of the stacking table descends to the unloading position, and the clamp robot clamps the battery cell out and transfers it to the glue fixture table;

[0042] The S4 glue sticking fixture clamps the battery cell and glues the battery cell through the glue sticking mechanism;

[0043] After the S5 battery cell is glued, the receiving robot moves the battery cell to the receiving table to complete the battery cell stacking process.

[0044] In step S1, the positive and negative electrode swing arm manipulators respectively absorb the positive and negative electrode sheets, rotate them 90 degrees and place them on the positive and negative electrode correction tables for secondary positioning, thereby determining the positions of the positive and negative electrode sheets and realizing the correction of the positions of the positive and negative electrode sheets. The positions of the positive and negative electrode sheets can be determined by detecting and positioning using a CCD visual positioning device.

[0045] Furthermore, in step S1, the negative electrode sheet is placed on the stacking table by using a negative electrode stacking robot, and before being clamped with the diaphragm pre-placed on the stacking table, it also includes: stacking a layer of diaphragm on the upper surface of the stacking plate located on the stacking table by a diaphragm unwinding mechanism, stacking the negative electrode sheet on top of the diaphragm, and using a stacking table press to press the negative electrode sheet and the diaphragm.

[0046] In step S1, the predefined positive and negative electrode sheet feeding methods can be vacuum belt feeding and clip feeding.

[0047] In step S2, the positive and negative electrode lamination robots are respectively on both sides of the lamination platform, and their movement directions are parallel to the moving direction of the lamination platform.

[0048] In step S2, during the lamination switching process, the lamination table moves in two directions, one is horizontal movement and the other is vertical movement. The parameters of these two directions are designed according to the length of the diaphragm to complete the trajectory movement.

[0049] During the gluing process of the gluing mechanism on the battery cell in step S4, the battery cell is always kept in a clamped state.

[0050] The stacking table can descend at high speed during the stacking process to consume excess diaphragm, so that the diaphragm does not need to be retracted during the stacking process, which solves the problem of excessive impact and excessive instantaneous acceleration of the diaphragm during the unwinding process, avoids large fluctuations in diaphragm tension, ensures the stability of diaphragm unwinding, and greatly improves the unwinding speed. After the battery cell stacking is completed, the stacking table descends as a whole to discharge the material from the bottom. In this way, when the unloading clamp robot unloads the battery cell, it will not affect the work of other mechanisms, thereby improving the operating efficiency of the equipment, reducing auxiliary time, and significantly improving the operating efficiency of the stacking machine.

[0051] See also Figure 2-6The present invention also provides a Z-shaped laminating machine, which is a laminating machine that adopts a laminating table moving method to laminae, and is used to realize high-speed laminating manufacturing, and includes a main frame 1, a negative electrode vacuum belt 2 is fixedly arranged on the top of the main frame 1, and a negative electrode laminating robot 3 is arranged on the side of the negative electrode vacuum belt 2; a diaphragm unwinding mechanism 4 is arranged on the right side of the top rear end of the main frame 1, and a CCD visual positioning device 5 is arranged on the left side of the diaphragm unwinding mechanism 4, a positive electrode laminating robot 6 is arranged in the middle of the top of the main frame 1, a positive electrode deviation correction platform 7 is arranged in the middle of the top of the main frame 1, and a glue sticking machine is arranged on the left side of the top of the main frame 1 Structure 9, a glue sticking fixture table 8 is arranged above the glue sticking mechanism 9, a clamp robot 10 is arranged on the top left side of the main frame 1 and below the glue sticking mechanism 9, a positive electrode vacuum belt 11 is arranged on the top of the main frame 1 and on the right of the glue sticking mechanism 9, a positive electrode swing arm robot 12 is arranged on the top of the main frame 1 and on the side of the positive electrode vacuum belt 11, an NG electrode sheet material box 14 is arranged on the top of the main frame 1 and on the right of the positive electrode swing arm robot 12, a stacking table 15 is arranged directly below the diaphragm unwinding mechanism 4, and a negative electrode swing arm robot 16 is arranged on the top of the main frame 1 and below the diaphragm unwinding mechanism 4.

[0052] The Z-shaped stacking machine proposed in the above embodiment has a negative electrode vacuum belt 2 fixed on the front side of the main frame 1, and the negative electrode sheets are adsorbed on the negative electrode vacuum belt 2 by vacuum, and each sheet is quickly transported to the sheet taking position, that is, the grabbing position of the negative electrode swing arm manipulator 16, and a sensor is provided at this position to detect whether the negative electrode sheet is delivered in place; the negative electrode swing arm manipulator 16 is fixed on the main frame 1, on the side of the negative electrode vacuum belt 2, and its main drive is a servo motor acceleration and reduction gear, and there is a vacuum suction plate on the negative electrode swing arm manipulator 16, which sucks the negative electrode sheet and rotates 90 degrees to quickly place it on the negative electrode correction table 17, and the negative electrode correction table 17 is composed of 3 sets of servo drives, and there is a CCD visual positioning device 5 directly above it. After taking pictures through CCD vision technology to determine the position of the negative electrode sheet, the negative electrode correction table 17 is shaped so that the negative electrode sheet is shaped to the set position each time; the negative electrode stacking robot 3 and the positive electrode stacking robot 6 are respectively fixed on the side of the same stacking table 15 to ensure that the running directions are parallel, and the diaphragm unwinding mechanism 4 is fixed above the main frame 1 and installed in the middle of the positive and negative electrode stacking robots 6 and 3, wherein the suction plates of the positive and negative electrode stacking robots 6 and 3 are installed against the diaphragm unwinding mechanism 4 to ensure that when the stacking table 15 is switched, the diaphragm unwinding amount is minimized to improve the operating efficiency; wherein, the diaphragm unwinding mechanism 4 is fixed, so that the diaphragm unwinding stability is higher and the alignment accuracy is better.

[0053] The negative electrode stacking manipulator 3 and the positive electrode stacking manipulator 6 are respectively arranged on both sides of the stacking platform 15, and are used to provide negative electrode sheets and positive electrode sheets to the stacking platform 15, respectively. Their movement direction is parallel to the movement direction of the stacking platform 15. During the movement and switching process of the stacking platform 15, the stacking platform 15 can be lowered as a whole, so that the redundant diaphragm does not need to be retracted; the diaphragm unwinding mechanism 4 is fixed; the positive and negative electrode stacking manipulators 6 and 3 are switched left and right synchronously with the stacking platform 15, and the diaphragm unwinding mechanism 4 actively unwinds to complete the Z-shaped stacking of the battery cell; after the battery cell stacking is completed, the stacking platform 15 is lowered as a whole to the unloading position, the hot cutting mechanism moves to the hot cutting position to cut off the diaphragm, and the receiving manipulator clamps the battery cell and moves it to the glue clamping station for glueing.

[0054] The diaphragm unwinding mechanism 4 includes a vertical plate 41, which is fixedly connected to the main frame 1. A unwinding motor 42 is fixedly arranged on the right side of the bottom rear end of the vertical plate 41. The output end of the unwinding motor 42 passes through the front wall of the vertical plate 41. Two air expansion shafts 43 are arranged at the front of the vertical plate 41. The rear end of the left air expansion shaft 43 is rotatably connected to the middle of the upper front end of the vertical plate 41, and the rear end of the right air expansion shaft 43 is fixedly connected to the output end of the unwinding motor 42. A tension sensor 44 is arranged on the upper right side of the front end of the vertical plate 41, and a tension driving motor is arranged on the left side of the rear end of the vertical plate 41. 45. A tension roller 46 is provided at the upper left portion of the front end of the vertical plate 41, a buffer roller 47 is provided at the front end of the vertical plate 41 and on the left side of the tension roller 46, a diaphragm transition roller 48 is provided at the front end of the vertical plate 41 and below the buffer roller 47, a dividing roller 49 is provided at the front end of the vertical plate 41 and below the diaphragm transition roller 48, a deviation correction sensor 410 is provided at the front end of the vertical plate 41 and below the dividing roller 49, a control box 411 is provided at the front end of the vertical plate 41 and below the tension sensor 44, and a diaphragm 412 is provided on the outside of the air inflation shaft 43.

[0055] The positive electrode stacking robot 6 includes three supporting columns 61, a robot base 62 is arranged between the tops of the three supporting columns 61, a linear motor 63 is arranged at the front end of the robot base 62, a first servo motor 64 is arranged on the upper parts of the left and right sides of the front end of the robot base 62, a buffer cylinder 65 is arranged at the front end of the robot base 62 and below the first servo motor 64, a film picking arm 66 is arranged at the front end of the robot base 62 and below the buffer cylinder 65, a stacking suction plate 67 is arranged at the front end of the robot base 62 and below the film picking arm 66, and a high-speed drag chain 68 is arranged at the front end of the robot base 62 and to the right of the stacking suction plate 67.

[0056] The positive electrode deflection correction table 7 includes a profile 71, a bottom plate 72 is arranged on the top of the profile 71, a second servo motor 73 is arranged on the right side of the top of the bottom plate 72, a screw rod 74 is arranged on the top of the bottom plate 72 and on the left side of the second servo motor 73, a dust cover 75 is arranged on the right side of the top of the bottom plate 72, and a transparent suction plate 76 is arranged on the top of the bottom plate 72 and on the left side of the dust cover 75, and the dust cover 75 can clean the table of the transparent suction plate 76. A light source 77 is arranged at the front end of the transparent suction plate 76, and an air suction pipe 78 is arranged on the left side of the transparent suction plate 76.

[0057] The transparent suction plate 76 is fixed directly above the light source 77, and has vacuum suction holes on its surface for adsorbing the positive electrode sheet; the light source 77 illuminates the positive electrode sheet, projects its shape, and cooperates with the CCD visual positioning device 5 to perform deviation correction: after the CCD visual positioning device 5 captures the position of the positive electrode sheet, the positive electrode deviation correction station 7 responds quickly to correct the positive electrode sheet.

[0058] In this embodiment, the stacking table 15 is mobile, and its horizontal main drive is a linear motor, and the vertical direction is driven by a servo screw to complete the trajectory switching of the stacking table 15 to switch the stacking; through the lightweight design of the stacking table 15, the weight is reduced and the inertia is greatly reduced.

[0059] When stacking, first stack a layer of diaphragm on the stacking plate 15, and then stack a layer of negative electrode sheet. The stacking plate pressing knife presses the negative electrode sheet and the diaphragm, and then the stacking plate 15 moves horizontally to switch to the positive electrode stacking position. At the same time, the diaphragm unwinding mechanism 4 actively unwinds. When the stacking platform 15 switches horizontally, the stacking plate pressing knife and the stacking plate descend at the same time, and the excess diaphragm is consumed in the vertical direction. In this way, the diaphragm unwinding mechanism 4 does not need to recycle the diaphragm to avoid impact on the diaphragm. Therefore, during the switching stacking process, the stacking platform 15 moves in two directions, one is horizontal movement and the other is vertical movement. The design parameters of these two directions are based on the length of the diaphragm to complete the trajectory movement. The diaphragm of the diaphragm unwinding mechanism 4 is always unwinding, and the running direction of the diaphragm is fixed. By switching the movement in this way, the positive and negative electrode stacking of the battery cell is completed.

[0060] The switching stroke of the above-mentioned stacking table 15 can be changed according to the size of the battery cell, the movement amount is minimized, the operating efficiency is improved, the equipment vibration problem is reduced, and the noise is reduced. The positive and negative electrode stacking robots 6 and 3 are parallel to the running direction of the stacking table 15. Under this layout, the positive and negative electrode stacking robots 6 and 3 have the shortest transportation distance. Compared with the traditional stroke, the transportation efficiency of the positive and negative electrode stacking robots 6 and 3 is improved, and the equipment vibration and noise are reduced.

[0061] After the battery cell stacking is completed, the Z axis of the stacking table 15 descends to the unloading position, the clamp robot 10 clamps the battery cell and transfers it to the gluing fixture table 8, the gluing fixture table 8 clamps the battery cell, and the gluing mechanism 9 glues the battery cell. During this process, the battery cell is always in a clamped state. After the battery cell gluing is completed, the collecting robot moves the battery cell to the collecting table to complete the battery cell stacking process.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lamination manufacturing method, characterized in that: The method comprises: using a predefined material supply method, conveying the positive and negative electrode sheets to the grasping positions of the positive and negative electrode swing arm manipulators respectively, using the positive and negative electrode swing arm manipulators to respectively absorb the positive and negative electrode sheets, rotate them 90 degrees and place them on the positive and negative electrode deviation correction tables, using the negative electrode stacking manipulator to place the negative electrode sheet on the stacking table, clamping it with the diaphragm pre-placed on the stacking table, and then horizontally moving and switching to the positive electrode stacking position; When the stacking is switched, the positive and negative stacking manipulators are on both sides of the stacking table respectively. The positive and negative stacking manipulators and the stacking table switch left and right synchronously. At the same time, the diaphragm material dividing mechanism actively unwinds, and the cycle stacking switches left and right to complete the positive and negative stacking of the battery cell; After the battery cell stacking is completed, the Z axis of the stacking table descends to the unloading position, and the clamp robot clamps the battery cell out and transfers it to the glue fixture table; The glue sticking fixture clamps the battery cell and glues the battery cell through the glue sticking mechanism; After the battery cell glue is completed, the receiving robot moves the battery cell to the receiving table to complete the battery cell stacking process; During the stacking switching process, the stacking table moves horizontally and vertically. The direction of movement is designed according to the diaphragm length to complete the trajectory movement. in, When stacking, first stack a layer of diaphragm on the stacking plate, then stack a layer of negative electrode, the stacking plate pressing knife presses the negative electrode and the diaphragm, the stacking plate is moved horizontally to switch to the positive electrode stacking position, and the diaphragm unwinding mechanism actively unwinds, when the stacking plate switches horizontally, the stacking plate pressing knife and the stacking plate descend at the same time, consuming the excess diaphragm in the vertical direction.

2. A lamination manufacturing method according to claim 1, characterized in that: The negative electrode sheet is placed on the stacking table by using a negative electrode stacking robot, and before being clamped with the diaphragm placed in advance on the stacking table, the process includes: stacking a layer of diaphragm on the upper surface of the stacking plate on the stacking table through a diaphragm unwinding mechanism, stacking the negative electrode sheet on top of the diaphragm, and using a stacking table press to press the negative electrode sheet and the diaphragm tightly.

3. A lamination manufacturing method according to claim 1, characterized in that: The predefined material supply methods include vacuum belt supply and clip supply; The positions of the positive and negative electrode sheets placed on the positive and negative electrode correction tables are detected and determined using a CCD visual positioning device.

4. A lamination manufacturing method according to claim 1, characterized in that: During the process of gluing the battery core by the gluing mechanism, the battery core is always kept in a clamped state.

5. A Z-shaped lamination machine, used to implement the lamination manufacturing method according to any one of claims 1 to 4, characterized in that: It comprises a main frame (1), a negative electrode vacuum belt (2) is fixedly arranged on the top of the main frame (1), and a negative electrode stacking robot (3) is arranged on the side of the negative electrode vacuum belt (2); a diaphragm unwinding mechanism (4) is arranged on the right side of the top rear end of the main frame (1); a CCD visual positioning device (5) is arranged on the left side of the diaphragm unwinding mechanism (4), and a negative electrode deviation correction platform (17) is arranged directly below the CCD visual positioning device (5); A positive electrode lamination robot (6) and a positive electrode deviation correction platform (7) are arranged in the middle of the top of the main frame (1); a gluing mechanism (9) is arranged on the left side of the top of the main frame (1); a gluing fixture platform (8) is arranged above the gluing mechanism (9); and a clamp robot (10) is arranged on the left side of the top of the main frame (1) and below the gluing mechanism (9); A positive electrode vacuum belt (11) is fixedly arranged on the top of the main frame (1) and located to the right of the glue sticking mechanism (9); a positive electrode swing arm manipulator (12) is arranged on the side of the positive electrode vacuum belt (11); and an NG electrode sheet material box (14) is arranged on the top of the main frame (1) and located to the right of the positive electrode swing arm manipulator (12); A negative electrode swing arm manipulator (16) is provided at the top of the main frame (1) and below the diaphragm unwinding mechanism (4), and a lamination table (15) is provided directly below the diaphragm unwinding mechanism (4).

6. A Z-shaped lamination machine according to claim 5, characterized in that: The negative electrode lamination robot (3) and the positive electrode lamination robot (6) are respectively arranged on both sides of the lamination platform (15) and are used to provide positive electrode sheets and negative electrode sheets to the lamination platform (15). The movement direction is parallel to the movement direction of the lamination platform (15) and is switched left and right synchronously with the lamination platform (15).

7. A Z-shaped lamination machine according to claim 6, characterized in that: The diaphragm unwinding mechanism (4) comprises a vertical plate (41), the vertical plate (41) being fixedly connected to the main frame (1), an unwinding motor (42) being fixedly arranged on the right side of the bottom rear end of the vertical plate (41), the output end of the unwinding motor (42) passing through the front wall of the vertical plate (41), two air expansion shafts (43) being arranged on the front part of the vertical plate (41), the rear end of the left air expansion shaft (43) being rotatably connected to the middle of the upper front end of the vertical plate (41), and the rear end of the right air expansion shaft (43) being fixedly connected to the output end of the unwinding motor (42), a tension sensor (44) being arranged on the upper right side of the front end of the vertical plate (41), and a tension driving motor (44) being arranged on the left side of the rear end of the vertical plate (41). 45), a tension roller (46) is arranged at the upper left part of the front end of the vertical plate (41), a buffer roller (47) is arranged at the front end of the vertical plate (41) and located on the left side of the tension roller (46), a diaphragm transition roller (48) is arranged at the front end of the vertical plate (41) and located below the buffer roller (47), a dividing roller (49) is arranged at the front end of the vertical plate (41) and located below the diaphragm transition roller (48), a deviation correction sensor (410) is arranged at the front end of the vertical plate (41) and located below the dividing roller (49), a control box (411) is arranged at the front end of the vertical plate (41) and located below the tension sensor (44), and a diaphragm (412) is arranged on the outside of the air expansion shaft (43).

8. A Z-shaped lamination machine according to claim 6, characterized in that: The positive electrode stacking robot (6) comprises three support columns (61), a robot base (62) is arranged between the tops of the three support columns (61), a linear motor (63) is arranged at the front end of the robot base (62), first servo motors (64) are arranged at the upper parts of the left and right sides of the front end of the robot base (62), a buffer cylinder (65) is arranged at the front end of the robot base (62) and below the first servo motor (64), a film taking arm (66) is arranged at the front end of the robot base (62) and below the buffer cylinder (65), a stacking suction plate (67) is arranged at the front end of the robot base (62) and below the film taking arm (66), and a high-speed drag chain (68) is arranged at the front end of the robot base (62) and to the right of the stacking suction plate (67).

9. A Z-shaped lamination machine according to claim 6, characterized in that: The positive electrode deflection correction platform (7) comprises a profile (71), a bottom plate (72) is arranged on the top of the profile (71), a second servo motor (73) is arranged on the right side of the top of the bottom plate (72), a screw rod (74) is arranged on the top of the bottom plate (72) and on the left side of the second servo motor (73), a dust hood (75) is arranged on the right side of the top of the bottom plate (72), a transparent suction plate (76) is arranged on the top of the bottom plate (72) and on the left side of the dust hood (75), a light source (77) is arranged at the front end of the transparent suction plate (76), and a suction pipe (78) is arranged on the left side of the transparent suction plate (76).

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