Battery cell stacking device and battery cell stacking equipment

Abstract

The utility model relates to a battery cell stacking device and battery cell stacking equipment, and the battery cell stacking device is characterized in that a supporting mechanism is provided with a battery cell tray receiving position, and the battery cell tray receiving position can bear a battery cell tray; the tray shifting mechanism is arranged on the supporting mechanism and can abut against the battery cell tray and drive the battery cell tray to perform position adjustment; the stacking mechanism comprises a material receiving driving assembly and a shaping assembly, the material receiving driving assembly and the shaping assembly are arranged on the supporting mechanism, and the material receiving driving assembly can drive the shaping assembly to shape the battery cells and place the shaped battery cells on the battery cell trays after position adjustment. According to the battery cell stacking device, the battery cells can be stacked under the condition that the position of the battery cell tray can be adjusted, and compared with a mode that the battery cells are transferred to the battery cell tray after being stacked, the battery cell stacking device has the advantage that the battery cells are directly stacked at the position close to the battery cell tray.

Description

Technical Field

[0001] The present application relates to the technical field of battery cell production, and particularly to a battery cell stacking device and a battery cell stacking equipment. Background Art

[0002] With the continuous progress of battery cell production technology and the continuous diversification of battery cell application scenarios, the requirements for battery cell production efficiency are getting higher and higher. In the process of manufacturing battery cells, especially in the process of forming battery cell groups, it is usually necessary to stack multiple battery cells, that is, it is necessary to align the end faces of multiple battery cells placed by a manipulator.

[0003] However, after multiple battery cells are stacked by the battery cell shaping equipment in the related art, it is necessary to transfer the battery cells to a battery cell tray by means of an external robot, and the transfer process takes a long time, which is difficult to meet the requirements of high-speed production and processing in the workshop. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a battery cell stacking device and a battery cell stacking equipment for the above technical problems.

[0005] A battery cell stacking device includes:

[0006] A support mechanism is provided with a battery cell tray receiving position, and the battery cell tray receiving position can receive a battery cell tray;

[0007] A tray shifting mechanism is arranged on the support mechanism, and can abut against the battery cell tray and drive the battery cell tray to adjust its position;

[0008] A stacking mechanism includes a receiving driving component and a shaping component. The receiving driving component and the shaping component are arranged on the support mechanism. The receiving driving component can drive the shaping component to shape the battery cell and place the shaped battery cell on the battery cell tray after position adjustment.

[0009] In one embodiment, the shaping component includes a side shaping member, a centering shaping member, a height shaping member and a shaping support member. The side shaping member, the centering shaping member and the height shaping member are arranged on the shaping support member. The side shaping member can abut against the side of the battery cell, the centering shaping member can abut against the end face of the battery cell, and the height shaping member can abut against the upper surface of the battery cell.

[0010] In one embodiment, the shaping support member includes a shaping support vertical plate and a shaping support bottom plate. The side shaping member includes a first driver, a second driver, a third driver, a battery cell abutting plate, and a battery cell side pressing block. The battery cell abutting plate and the battery cell side pressing block are oppositely arranged on the shaping support bottom plate. The first driver can drive the battery cell abutting plate to receive the battery cell, and the battery cell side pressing block can, under the action of the second driver and the third driver, drive the side of the battery cell to abut against the battery cell abutting plate.

[0011] In one embodiment, the centering and shaping member includes a centering connecting plate, a centering slide rail, and a battery cell centering block. The centering connecting plate is arranged on one side of the shaping support bottom plate away from the shaping support vertical plate. The centering slide rail is arranged on one side of the shaping support bottom plate close to the shaping support vertical plate. The battery cell centering block is arranged on the shaping support bottom plate. The centering connecting plate and the centering slide rail can drive the battery cell centering block to abut against the end face of the battery cell.

[0012] In one embodiment, the height shaping member includes a fourth driver and a battery cell pressing rubber block. One end of the battery cell pressing rubber block is connected to the first driver, and the other end of the battery cell pressing rubber block is connected to the fourth driver. The battery cell pressing rubber block can, under the action of the fourth driver, drive the bottom surface of the battery cell to abut against the battery cell tray.

[0013] In one embodiment, the stacking mechanism further includes:

[0014] An end pressing assembly, arranged on the support mechanism, capable of abutting against the battery cell located in the battery cell tray and pressing the side of the battery cell;

[0015] A side pressing down assembly, arranged on the support mechanism, capable of abutting against the battery cell located in the battery cell tray and extruding the bottom surface of the battery cell.

[0016] In one embodiment, the end pressing assembly includes a battery cell pressing block, an end plate pressing block, a fifth driver, and an end face pressing support member. The battery cell pressing block, the end plate pressing block, and the fifth driver are arranged on the end face pressing support member. The fifth driver can drive the battery cell pressing block and the end plate pressing block to abut against the battery cell and the end plate located in the battery cell tray.

[0017] In one embodiment, the tray shifting mechanism includes:

[0018] A tray pressing component, arranged on the support mechanism, capable of receiving the battery cell tray located at the receiving position of the battery cell tray and limiting the battery cell tray;

[0019] The tray lifting assembly is arranged on the support mechanism and can adjust the height of the battery cell tray;

[0020] The tray side pressing assembly is arranged on the support mechanism and can abut against the side of the battery cell tray and drive the battery cell tray to move along the width direction of the support mechanism;

[0021] The tray end pressing assembly is arranged on the support mechanism and can abut against the end face of the battery cell tray and drive the battery cell tray to move along the length direction of the support mechanism.

[0022] In one embodiment, the battery cell stacking device further includes:

[0023] The tray tightening mechanism is arranged on the support mechanism and can tighten the battery cell tray;

[0024] The movable distance measuring mechanism is arranged on the support mechanism and can measure the length after the battery cells are stacked.

[0025] A battery cell stacking device includes:

[0026] The battery cell conveying device can convey the battery cells to a preset position;

[0027] The battery cell tray conveying device can convey the battery cell tray to the battery cell tray receiving position;

[0028] The battery cell stacking device as described above.

[0029] The technical effects of the embodiments provided in this application are as follows:

[0030] In the above-mentioned battery cell stacking device, when stacking the battery cells produced at high speed, the support mechanism receives the battery cell tray through the provided battery cell tray receiving position, the tray shifting mechanism arranged on the support mechanism abuts against the battery cell tray and drives the battery cell tray to adjust its position in different directions, and the stacking mechanism drives the shaping component also arranged on the support mechanism to shape the battery cells through the receiving driving component arranged on the support mechanism, and then places the shaped battery cells into the battery cell tray with the adjusted position. It can realize the stacking process of the battery cells while being able to adjust the position of the battery cell tray. Compared with the method of stacking the battery cells first and then transferring them to the battery cell tray, it realizes directly stacking the battery cells at a position close to the battery cell tray, effectively improving the problem that it takes more time to transfer the stacked battery cell module by means of an external transfer structure after the battery cells are stacked, and can also save additional transfer costs, thereby meeting the higher requirements for the production efficiency of the battery cells. Description of the Drawings

[0031] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0032] Figure 1 It is a schematic structural diagram of a battery cell stacking device in an embodiment;

[0033] Figure 2 It is a schematic diagram of the structural division of a battery cell in an embodiment;

[0034] Figure 3 It is a schematic structural diagram of the specific structure of the tray pressing assembly 220 in an embodiment;

[0035] Figure 4 It is a schematic structural diagram of the specific structure of the tray lifting assembly 240 in an embodiment;

[0036] Figure 5 It is a schematic structural diagram of the specific structure of the tray lifting assembly 240 in an embodiment;

[0037] Figure 6 It is a schematic structural diagram of the specific structure of the tray end surface pressing assembly 280 in an embodiment;

[0038] Figure 7 It is a schematic structural diagram of the specific structure of the tray side pressing assembly 260 in an embodiment;

[0039] Figure 8 It is a schematic structural diagram of the specific structure of the material receiving driving assembly 320 in an embodiment;

[0040] Figure 9 It is a schematic structural diagram of the specific structure of the shaping assembly 340 in an embodiment;

[0041] Figure 10 It is a schematic structural diagram of the specific structure of the shaping assembly 340 in an embodiment;

[0042] Figure 11 It is a schematic structural diagram of the specific structure of the end pressing assembly 360 in an embodiment;

[0043] Figure 12 It is a schematic structural diagram of the specific structure of the side pressing-down assembly 380 in an embodiment;

[0044] Figure 13 It is a schematic structural diagram of the specific structure of the tray tightening mechanism 40 in an embodiment;

[0045] Figure 14Schematic diagram of the specific structure of the active ranging mechanism 50 in an embodiment;

[0046] Figure 15 Schematic diagram of the structure of the battery cell tray in an embodiment. Detailed implementation manners

[0047] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0049] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0050] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0051] Figure 1 , Schematic diagram of the structure of the battery cell stacking device in an embodiment.

[0052] In this embodiment, as Figure 1 shown, the battery cell stacking device includes a support mechanism 10, a tray shifting mechanism 20, a stacking mechanism 30, a tray tightening mechanism 40, and an active ranging mechanism 50; Figure 2 Schematic diagram of the structural division of the battery cell.

[0053] The support mechanism 10 is provided with a battery cell tray receiving position, and the battery cell tray receiving position can receive the battery cell tray.

[0054] The support mechanism 10 can be a functional structure that is provided with a battery cell tray receiving position, is connected to the tray shifting mechanism 20, the stacking mechanism 30, the tray tightening mechanism 40, and the movable ranging mechanism 50, and can provide a supporting function for the tray shifting mechanism 20, the stacking mechanism 30, the tray tightening mechanism 40, and the movable ranging mechanism 50. The battery cell tray receiving position can be a functional position that is arranged on one side of the support mechanism 10 close to the external battery cell tray conveying device and can receive the battery cell tray conveyed by the battery cell tray conveying device. Optionally, the support mechanism 10 can be a battery cell stacking table.

[0055] The tray shifting mechanism 20 is arranged on the support mechanism 10 and can abut against the battery cell tray and drive the battery cell tray to adjust its position. The tray shifting mechanism 20 includes a tray pressure receiving component 220, a tray lifting component 240, a tray side pressing component 260, and a tray end pressing component 280. The tray pressure receiving component 220 is arranged on the support mechanism 10 and can receive the battery cell tray located at the battery cell tray receiving position and limit the battery cell tray. The tray lifting component 240 is arranged on the support mechanism 10 and can adjust the height of the battery cell tray. The tray side pressing component 260 is arranged on the support mechanism 10 and can abut against the side of the battery cell tray and drive the battery cell tray to move along the width direction of the support mechanism 10. The tray end pressing component 280 is arranged on the support mechanism 10 and can abut against the end face of the battery cell tray and drive the battery cell tray to move along the length direction of the support mechanism 10.

[0056] The tray shifting mechanism 20 can be a functional structure arranged around the support mechanism 10, which can receive the battery cell tray located at the battery cell tray receiving position, abut against the end face, side face, and bottom face of the battery cell tray, and drive the battery cell tray to adjust its position along the length direction, width direction, and height direction of the support mechanism 10. The tray pressure receiving component 220 can be a functional component arranged on one side of the support mechanism 10 close to the receiving driving component 320, which can receive the battery cell tray located at the battery cell tray receiving position and limit the battery cell tray. The tray lifting component 240 can be a functional component arranged in the middle of the support mechanism 10, which can abut against the bottom face of the battery cell tray and drive the battery cell tray to adjust its position along the height direction of the support mechanism 10. The tray side pressing component 260 can be relatively arranged on both sides of the support mechanism 10, which can abut against the side face of the battery cell tray and drive the battery cell tray to adjust its position along the width direction of the support mechanism 10. The tray end pressing component 280 can be arranged on one side of the support mechanism 10 away from the tray pressure receiving component 220, which can abut against the end face of the battery cell tray and drive the battery cell tray to adjust its position along the length direction of the support mechanism 10.

[0057] Optionally, as Figure 3As shown in the figure, the tray pressure component 220 includes a lifting cylinder 2220 and a pressure roller component 2240. When adjusting the position of the battery cell tray, when the battery cell tray flows in, the lifting cylinder 2220 in the tray pressure component 220 acts, and the guide rod retracts. At this time, the tray pressure component 220 rises to the highest position, and the battery cell tray flows in; after the battery cell tray flows in, the lifting cylinder 2220 in the tray pressure component 220 acts, the guide rod extends, and it descends to the lowest position to prevent the inflow and outflow of the battery cell tray; under the combined action of the pressure roller component 2240 and the tray end surface pressing component 280, the position of the battery cell tray is fixed; when the battery cell tray flows out, the lifting cylinder 2220 in the tray pressure component 220 acts, and the guide rod retracts. At this time, the tray pressure component 220 rises to the highest position, the battery cell tray flows out, and waits for the inflow of the next set of battery cell trays. The tray pressure component 220 can control the inflow and outflow of the battery cell tray. In addition, the pressure roller component 2240 on the tray pressure component 220 and the tray end surface pressing component 280 act together, with the pressure roller component 2240 as the abutting edge, so that the end surface of the battery cell tray leans on it, ensuring that the position of the battery cell tray remains fixed during the subsequent stacking process.

[0058] Optionally, as Figures 4 to 5 shown, the tray lifting component 240 includes a parallel gripper 2420, a thin cylinder 2440 and a lifting bracket 2460. The parallel gripper 2420 and the thin cylinder 2440 are arranged on the lifting bracket 2460. When adjusting the position of the battery cell tray, when the battery cell tray flows into the tray lifting component 240, the tray lifting component 240 acts, and the guide rod of the thin cylinder 2440 changes from extending to retracting, and the tray lifting component 240 descends, and the battery cell tray descends. When stacking the battery cells, the parallel gripper 2420 acts to control the movement of the stacking mechanism and center and shape the battery cells. The tray lifting component 240 can lift and lower the battery cell tray flowing into the battery cell stacking table. In addition, through the combined action with the tray end surface pressing component 280 and the tray side pressing component 260, the position of the battery cell tray is ensured to be fixed.

[0059] Optionally, as Figure 6 shown, the tray end surface pressing component 280 can be a multi-axis cylinder 2820 structure. When adjusting the position of the battery cell tray, after the battery cell tray passes through the action of the tray lifting component 240 and its height drops, the guide rod of the multi-axis cylinder 2820 of the tray end surface pressing component 280 changes from retracting to extending. Under the action of the force of the multi-axis cylinder 2820, the end surface of the battery cell tray is pressed against the surface of the pressure roller component 2240 in the tray pressure component 220, ensuring that the position of the end surface of the battery cell tray is fixed. The tray end surface pressing component 280 can press the end surface of the battery cell tray against the surface of the pressure roller component 2240 in the tray pressure component 220.

[0060] Optionally, as Figure 7As shown, the side pressing assembly 260 of the tray includes a three-axis cylinder 2620 and a pressing plate 2640. When adjusting the position of the battery cell tray, when the end pressing assembly 280 of the tray acts, the side pressing assembly 260 of the tray acts on both sides of the battery cell tray simultaneously. The three-axis cylinder 2620 on the side pressing assembly 260 of the tray extends. Under the action of the pressing plate 2640, both sides of the battery cell tray are pressed to ensure the fixation of the side position of the battery cell tray. The side pressing assembly 260 of the tray can press the side of the battery cell tray to ensure the fixation of the side position of the battery cell tray.

[0061] The stacking mechanism 30 includes a material receiving driving assembly 320, a shaping assembly 340, an end pressing assembly 360, and a side pressing-down assembly 380. The material receiving driving assembly 320, the shaping assembly 340, the end pressing assembly 360, and the side pressing-down assembly 380 are arranged on the support mechanism 10. The material receiving driving assembly 320 can drive the shaping assembly 340 to shape the battery cells and place the shaped battery cells on the battery cell tray after position adjustment; the end pressing assembly 360 can abut against the battery cells in the battery cell tray and press the sides of the battery cells; the side pressing-down assembly 380 can abut against the battery cells in the battery cell tray and squeeze the bottom surfaces of the battery cells.

[0062] The stacking mechanism 30 can be a functional structure arranged around the support mechanism 10, capable of receiving the battery cells conveyed by the battery cell conveying device and shaping and stacking the battery cells. The material receiving driving assembly 320 can be a functional assembly arranged on one side of the support mechanism 10 close to the tray pressing assembly 220 and connected to the shaping assembly 340, capable of providing a driving effect for the shaping assembly 340. The shaping assembly 340 can be a functional assembly arranged on both sides of the support mechanism 10, capable of receiving the battery cells conveyed by the battery cell conveying device and abutting against the end faces, sides, and bottom surfaces of the battery cells and shaping, pressing, and stacking the battery cells along the length, width, and height directions of the support mechanism 10.

[0063] Optionally, as Figure 8 shown, the material receiving driving assembly 320 includes a servo motor 3220 and a transmission rod 3240. As Figures 9 to 10 shown, the shaping assembly 340 includes a side shaping member 3420, a centering shaping member 3440, a height shaping member 3460, and a shaping support member 3480. The side shaping member 3420, the centering shaping member 3440, and the height shaping member 3460 are arranged on the shaping support member 3480. The side shaping member 3420 can abut against the side of the battery cell, the centering shaping member 3440 can abut against the end face of the battery cell, and the height shaping member 3460 can abut against the upper surface of the battery cell.

[0064] The side shaping member 3420 can be a functional member disposed on both sides of the support mechanism 10, capable of receiving the battery cells conveyed by the battery cell conveying device, abutting against the sides of the battery cells, and shaping the battery cells along the width direction of the support mechanism 10. The centering shaping member 3440 can be a functional member disposed on both sides of the support mechanism 10, connected to the tray lifting assembly 240, and capable of abutting against the end faces of the battery cells under the action of the tray lifting assembly 240 and shaping the battery cells along the length direction of the support mechanism 10. The height shaping member 3460 can be a functional member disposed on both sides of the support mechanism 10, capable of abutting against the bottom surfaces of the battery cells and shaping the battery cells along the height direction of the support mechanism 10.

[0065] Optionally, the shaping support member 3480 includes a shaping support vertical plate 3481 and a shaping support bottom plate 3482. The side shaping member 3420 includes a first driver 3421, a second driver 3422, a third driver 3423, a battery cell backing plate 3424, and a battery cell side pressing block 3425. The battery cell backing plate 3424 and the battery cell side pressing block 3425 are oppositely disposed on the shaping support bottom plate 3482. The first driver 3421 can drive the battery cell backing plate 3424 to receive the battery cells, and the battery cell side pressing block 3425 can, under the action of the second driver 3422 and the third driver 3423, drive the sides of the battery cells to abut against the battery cell backing plate 3424.

[0066] Optionally, the centering shaping member 3440 includes a centering connecting plate 3441, a centering slide rail 3442, and a battery cell centering block 3443. The centering connecting plate 3441 is disposed on the side of the shaping support bottom plate 3482 away from the shaping support vertical plate 3481. The centering slide rail 3442 is disposed on the side of the shaping support bottom plate 3482 close to the shaping support vertical plate 3481. The battery cell centering block 3443 is disposed on the shaping support bottom plate 3482. The centering connecting plate 3441 and the centering slide rail 3442 can drive the battery cell centering block 3443 to abut against the end faces of the battery cells.

[0067] Optionally, the height shaping member 3460 includes a fourth driver 3461 and a battery cell downward pressing rubber block 3462. One end of the battery cell downward pressing rubber block 3462 is connected to the first driver 3421, and the other end is connected to the fourth driver 3461. The battery cell downward pressing rubber block 3462 can, under the action of the fourth driver 3461, drive the bottom surfaces of the battery cells to abut against the battery cell tray.

[0068] It should be noted that the first driver 3421, the second driver 3422, the third driver 3423, and the fourth driver 3461 can be air cylinders or other drivers such as electric cylinders.

[0069] When shaping the battery cells, the battery cell robot transfers a group of battery cells to the battery cell stacking table. Under the action of the material receiving driving component 320, the stacking mechanism moves to the battery cell material receiving position. Under the action of the first driver 3421, the guide rod extends, and the battery cell backing plate 3424 extends accordingly. The battery cell transfer robot places the battery cell against the battery cell backing plate 3424, and then the battery cell transfer robot leaves. Under the action of the second driver 3422, the guide rod extends. Under the action of the third driver 3423, the guide rod extends, and the battery cell side pressing block 3425 shapes the side of the battery cell, making the battery cell fully close to the battery cell backing plate 3424. Under the action of the parallel gripper 2420 in the tray lifting component 240, the centering connecting plate 3441 moves back and forth with the expansion and contraction of the parallel gripper 2420. When centering and shaping the battery cell, the parallel gripper 2420 in the tray lifting component 240 retracts. With the assistance of the centering connecting plate 3441 and the slide rail, the battery cell centering block 3443 extends outwards and presses tightly on the end face of the battery cell to perform centering shaping on the end face of the battery cell. Under the action of the fourth driver 3461, the guide rod extends, and the battery cell pressing rubber block 3462 presses on the battery cell, making the bottom surface of the battery cell on the battery cell tray surface. Under the action of the fourth driver 3461, the guide rod retracts. Under the action of the third driver 3423, the guide rod retracts. Under the action of the second driver 3422, the guide rod retracts. Under the action of the first driver 3421, the guide rod retracts. After a group of battery cells are stacked, the parallel gripper 2420 in the tray lifting component 240 extends, and the battery cell centering block 3443 retracts under the action of the spring force.

[0070] Optionally, as Figure 11 shown, the end pressing component 360 includes a battery cell pressing block 3620, an end plate pressing block 3640, a fifth driver 3660, and an end face pressing support 3680. The battery cell pressing block 3620, the end plate pressing block 3640, and the fifth driver 3660 are arranged on the end face pressing support 3680. The fifth driver 3660 can drive the battery cell pressing block 3620 and the end plate pressing block 3640 to abut against the battery cell and the end plate located in the battery cell tray. Optionally, the fifth driver 3660 can be a driving set including a lifting cylinder, a downward pressing cylinder, an electric cylinder, and a servo press.

[0071] The end pressing component 360 can be a functional component arranged on the side of the support mechanism 10 away from the material receiving driving component 320, which can abut against the battery cell located in the battery cell tray and press the side of the battery cell and along the length direction of the support mechanism 10 to press the battery cell. The side pressing component 380 can be a functional component arranged relatively on both sides of the support mechanism 10, which can abut against the battery cell located in the battery cell tray and press the bottom surface of the battery cell and along the height direction of the support mechanism 10 to extrude the battery cell. Optionally, as Figure 12 shown, the side pressing component 380 includes a lifting driver 3820 and a side pressing block 3840.

[0072] After the stacking mechanism 30 finishes its operation, the electric cylinder in the fifth driver 3660 acts and extends forward, the lifting cylinder in the fifth driver 3660 acts, the guide rod extends, the pressing cylinder in the fifth driver 3660 does not act at this time, and the guide rod is in the retracted state; when the electric cylinder moves to the position where the battery cells are squeezed and stacked, the battery cell pressing block 3620 contacts the side of the battery cell, and under the action of the electric cylinder, the stacking between the battery cells and the side of the battery cell is completed; the pressing cylinder acts, the guide rod extends, to shape the height of the battery cells and prevent the battery cells from tilting during stacking; the pressing cylinder acts, the guide rod retracts; the electric cylinder acts and retracts to the original position. When stacking the last group of battery cells, the electric cylinder stops acting, the servo press in the fifth driver 3660 acts and extends forward, the lifting cylinder acts, the guide rod retracts; under the action of the servo press, the battery cell end plate pressing block 3640 contacts the end plate of the last group of battery cells and squeezes and stacks them; the pressing cylinder acts, the guide rod extends, to shape the height of the battery cells and prevent the battery cells from tilting during stacking; the pressing cylinder acts, the guide rod retracts. After the tray tightening mechanism 40 and the movable rangefinder 560 assembly finish their operations, the servo press in the fifth driver 3660 retracts to the original position. The end pressing assembly 360 can squeeze and stack the battery cells on the side through the action of the electric cylinder and the servo press.

[0073] When a group of battery cells finishes stacking, the lifting cylinder in the side pressing assembly 380 acts, the guide rod extends, and presses the group of battery cells on the battery cell tray surface. As shown in the figure below, each group of battery cells corresponds to the action of a lifting cylinder. Whether its front cylinder acts or not, it remains in its original state, and its rear cylinder does not act, and the guide rod is in the retracted state. For example, after the first group of battery cells finishes stacking, the first lifting cylinder in the side pressing assembly 380 starts to act, the guide rod extends, and presses the first group of battery cells on the battery cell tray surface. At this time, the first lifting cylinder and the subsequent lifting cylinders do not act. By analogy, the stacking of the second group of battery cells corresponds to the action of the second lifting cylinder, and then until the stacking of the last group of battery cells is completed. After the entire battery cell module finishes stacking, the guide rods of the lifting cylinders in the side pressing assembly 380 all retract. The side pressing assembly 380 can press down on the stacked battery cells to ensure that the battery cells do not tilt during subsequent stacking.

[0074] The tray tightening mechanism 40 is arranged on the support mechanism 10 and can tighten the battery cell tray; the movable ranging mechanism 50 is arranged on the support mechanism 10 and can measure the length of the stacked battery cells.

[0075] The tray tightening mechanism 40 can be a functional structure arranged on one side of the support mechanism 10 away from the material receiving drive assembly 320 and can tighten the lead screw in the battery cell tray. The movable ranging mechanism 50 can be a functional structure arranged on one side of the support mechanism 10 close to the tray tightening mechanism 40 and can measure the length of the stacked battery cells. Optionally, as Figure 13As shown, the tray tightening mechanism 40 includes a screw tightening servo motor 420, a module platform servo motor 440, and a screw tightening head 460. As Figure 14 shown, the movable ranging mechanism 50 includes a ranging servo motor 520, a screw module 540, and a rangefinder 560.

[0076] After the servo press in the fifth driver 3660 of the end pressing assembly 360 completes its function, the module platform servo motor 440 starts to act. The screw tightening servo motor 420 and other components move forward together. After reaching the limit, the screw tightening servo motor 420 starts to act, and the screw tightening head 460 tightens the screw on the cell tray (as Figure 15 shown) to ensure that the length of the stacked cell module remains unchanged. The tray tightening mechanism 40 can, after the servo press in the fifth driver 3660 of the end pressing assembly 360 completes its function, tighten the screw on the cell tray under the control of the servo motor, ensuring that the length dimension of the stacked cell module remains unchanged and that the cell module does not shake on the cell tray during subsequent transportation.

[0077] After the servo press in the fifth driver 3660 of the end pressing assembly 360 and the tray tightening mechanism 40 complete their functions, the movable rangefinder 560 assembly, under the action of the servo motor, the rangefinder 560 on the screw module 540 starts to move towards the end plate of the cell module. Based on the data value feedback by the rangefinder 560, it is determined whether the length of the stacked cell module is qualified. The movable rangefinder 560 assembly can, after the servo press in the fifth driver 3660 of the end pressing assembly 360 and the tray tightening mechanism 40 complete their functions, measure the distance to the end plate of the stacked cell module, and determine whether the length of the stacked cell module is qualified based on the feedback measurement data value.

[0078] It should be noted that the end pressing assembly 360, the tray tightening mechanism 40, and the movable rangefinder 560 assembly can form an "interlocking structure", whose main function is to ensure the normal stacking of the battery cell module and the length dimension of the stacked battery cell module meets the requirements. The specific operation principle is as follows: During the stacking process of the battery cell module, if the thickness of the stacked battery cells is too thick or too thin, when the electric cylinder in the fifth driver 3660 of the end pressing assembly 360 or the servo press in the fifth driver 3660 acts, the pressure value will exceed the standard pressure range value or be less than the standard pressure range value. When this situation occurs, the stacking of the battery cell module stops and an alarm signal is triggered to prompt the operator that the thickness of the stacked battery cells is unqualified and needs to be removed. When the last group of battery cells is stacked in the battery cell module and the servo press in the fifth driver 3660 of the end pressing assembly 360 and the tray tightening mechanism 40 have completed their actions (at this time, the servo press in the fifth driver 3660 of the end pressing assembly 360 is still squeezing the end plate of the battery cell module, and the screw tightening head 460 in the tray tightening mechanism 40 is still on the screw of the battery cell tray), the movable rangefinder 560 assembly acts to measure the distance to the end plate of the stacked battery cell module: If the measured distance value is greater than the standard set value, it means that the length of the battery cell module is too small. At this time, the servo press in the fifth driver 3660 of the end pressing assembly 360 retracts a little, and the tray tightening mechanism 40 loosens the battery cell tray screw by a few turns to increase the length of the battery cell module, and the movable rangefinder 560 assembly measures the distance again; If the measured distance value is less than the standard set value, it means that the length of the battery cell module is too large. At this time, the servo press in the fifth driver 3660 of the end pressing assembly 360 extends forward a little, and the tray tightening mechanism 40 tightens the battery cell tray screw by a few turns to reduce the length of the battery cell module, and the movable rangefinder 560 assembly measures the distance again; When the measured distance value meets the standard set value requirement, it means that the length dimension of the battery cell module meets the requirements and the stacking of the battery cell module is qualified. At this time, the movable rangefinder 560 assembly retracts, the tray tightening mechanism 40 retracts, and the servo press in the fifth driver 3660 of the end pressing assembly 360 retracts, and the stacking process ends.

[0079] For the above-mentioned "interlocking structure" of the battery cell stacking device, by receiving the feedback of the pressure value of the end pressing assembly 360 and the feedback of the measured distance value of the movable rangefinder 560 assembly, and through the mutual cooperation of the end pressing assembly 360, the tray tightening mechanism 40, and the movable rangefinder 560 assembly, on the one hand, the problem of unqualified thickness dimension of the stacked battery cells is eliminated, and on the other hand, it is ensured that the length of the stacked battery cell module meets the requirements.

[0080] This application also provides a battery cell stacking device, which includes a battery cell conveying device, a battery cell tray conveying device, and a battery cell stacking device. The battery cell conveying device can convey the battery cells to a preset position; the battery cell tray conveying device can convey the battery cell tray to the battery cell tray receiving position.

[0081] The division of each module in the above-mentioned battery cell stacking device is only for illustrative purposes. In other embodiments, the battery cell stacking device can be divided into different modules as needed to complete all or part of the functions of the above-mentioned battery cell stacking device.

[0082] When stacking the battery cells produced at high speed, the support mechanism in the battery cell stacking device and the battery cell stacking equipment receives the battery cell tray through the set battery cell tray receiving position. The tray displacement mechanism arranged on the support mechanism abuts against the battery cell tray and drives the battery cell tray to adjust its position in different directions. The stacking mechanism drives the shaping component also arranged on the support mechanism to shape the battery cells through the set receiving driving component arranged on the support mechanism, and then places the shaped battery cells into the battery cell tray with the adjusted position. It can realize the stacking process of the battery cells while being able to adjust the position of the battery cell tray. Compared with the method of stacking the battery cells and then transporting them to the battery cell tray, it realizes directly stacking the battery cells at a position close to the battery cell tray, effectively improving the problem that it takes more time to transport the stacked battery cell module with the help of an external transport structure after the battery cells are stacked, and can also save additional transport costs, thereby meeting the higher requirements for the production efficiency of the battery cells, and has important economic value and practical value for popularization.

[0083] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as the scope described in this specification.

[0084] The above-mentioned embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A battery cell stacking device, characterized in that: include: The supporting mechanism is provided with a cell tray receiving position, and the cell tray receiving position can receive the cell tray; A tray shifting mechanism, disposed on the supporting mechanism, capable of abutting against the battery tray and driving the battery tray to adjust its position; The stacking mechanism includes a material receiving drive component and a shaping component, wherein the material receiving drive component and the shaping component are arranged on the supporting mechanism, and the material receiving drive component can drive the shaping component to shape the battery cell and place the shaped battery cell on the battery cell tray with the position adjusted.

2. The battery cell stacking device according to claim 1, characterized in that: The shaping component includes a side shaping piece, a centering shaping piece, a height shaping piece and a shaping support piece. The side shaping piece, the centering shaping piece and the height shaping piece are arranged on the shaping support piece. The side shaping piece can abut against the side surface of the battery cell, the centering shaping piece can abut against the end surface of the battery cell, and the height shaping piece can abut against the upper surface of the battery cell.

3. The battery cell stacking device according to claim 2, characterized in that: The shaping support member includes a shaping support vertical plate and a shaping support bottom plate, and the side shaping member includes a first driver, a second driver, a third driver, a battery cell backing plate and a battery cell side pressure block. The battery cell backing plate and the battery cell side pressure block are relatively arranged on the shaping support bottom plate, and the first driver can drive the battery cell backing plate to receive the battery cell, and the battery cell side pressure block can drive the side of the battery cell to abut against the battery cell backing plate under the action of the second driver and the third driver.

4. The battery cell stacking device according to claim 3, characterized in that: The centering and shaping part includes a centering connecting plate, a centering slide rail and a battery cell centering block. The centering connecting plate is arranged on the side of the shaping support base plate away from the shaping support vertical plate, the centering slide rail is arranged on the side of the shaping support base plate close to the shaping support vertical plate, and the battery cell centering block is arranged on the shaping support base plate. The centering connecting plate and the centering slide rail can drive the battery cell centering block to abut against the end face of the battery cell.

5. The battery cell stacking device according to claim 4, characterized in that: The height shaping component includes a fourth driver and a battery cell pressing rubber block, one end of the battery cell pressing rubber block is connected to the first driver, and the other end of the battery cell pressing rubber block is connected to the fourth driver. The battery cell pressing rubber block can drive the lower bottom surface of the battery cell to abut against the battery cell tray under the action of the fourth driver.

6. The battery cell stacking device according to claim 1, characterized in that: The stacking mechanism also includes: An end clamping assembly, disposed on the support mechanism, capable of abutting against the battery cells in the battery cell tray and clamping the sides of the battery cells; The side pressing assembly is arranged on the supporting mechanism and can abut against the battery cells in the battery cell tray and press the bottom surface of the battery cells.

7. The battery cell stacking device according to claim 6, characterized in that: The end clamping assembly includes a battery cell clamping block, an end plate clamping block, a fifth driver and an end face clamping support. The battery cell clamping block, the end plate clamping block and the fifth driver are arranged on the end face clamping support. The fifth driver can drive the battery cell clamping block and the end plate clamping block to abut against the battery cells and end plates located in the battery cell tray.

8. The battery cell stacking device according to claim 7, characterized in that: The tray shifting mechanism comprises: A tray pressure component, disposed on the supporting mechanism, capable of receiving the cell tray located at the receiving position of the cell tray and limiting the position of the cell tray; A tray lifting assembly, disposed on the support mechanism, capable of adjusting the height of the battery tray; A tray side pressing assembly is provided on the support mechanism, and is capable of abutting against the side of the battery tray and driving the battery tray to move along the width direction of the support mechanism; The tray end surface pressing assembly is arranged on the supporting mechanism, and can abut against the end surface of the battery tray and drive the battery tray to move along the length direction of the supporting mechanism.

9. The battery cell stacking device according to claim 8, characterized in that: The battery cell stacking device further comprises: A tray tightening mechanism, disposed on the supporting mechanism, capable of tightening the battery tray; The movable distance measuring mechanism is arranged on the supporting mechanism and can measure the length of the stacked battery cells.

10. A battery cell stacking device, characterized in that: include: A battery cell conveying device capable of conveying the battery cells to a preset position; A cell tray conveying device capable of conveying the cell tray to the cell tray receiving position; A battery cell stacking device as claimed in any one of claims 1 to 9.

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