Method and system for shaping, guiding and inserting battery cell into tab

Abstract

The embodiment of the invention provides a method and a system for shaping a tab and guiding to insert a battery cell, and relates to the technical field of battery preparation, the method comprises the following steps: firstly, pressing and detecting the thickness of a soft package under a preset pressure, then calculating and determining a primary reference surface according to the thickness, and shaping the overall shape of the soft package battery cell according to the primary reference surface. The method comprises the following steps of: firstly, carrying out primary datum plane calculation to determine a primary datum plane, then calculating and determining a secondary datum plane according to the primary datum plane, shaping a tab according to the secondary datum plane, fixing a soft package battery cell on a profiling positioning tool at a preset position, and finally guiding the soft package battery cell into a busbar bracket. Compared with the prior art, the method has the advantages that the primary datum plane is determined through the thickness, the secondary datum plane is further determined, and a reliable datum can be provided for automatic tool equipment for positioning and shaping, so that manual operation can be avoided, the assembling effectiveness and reliability are improved, the assembling efficiency and quality are improved, and the assembling risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of battery preparation, and in particular to a method and system for tab shaping and guiding a battery cell. Background Art

[0002] With the development of electric vehicles and the energy storage industry, more and more automotive battery modules and energy storage grouping technologies have been produced. Battery modules are mainly composed of battery cells, a large part of which are soft-pack battery cells. Relatively speaking, due to their own characteristics, soft-pack battery cells rarely have reliable, effective, and stable positioning surfaces during the grouping process, and it is difficult to provide a reliable benchmark for automated tooling equipment to capture and position shaping. And because the tab characteristics of soft-pack battery cells are difficult to capture, it is necessary to manually thread the tabs through the busbars. Manual operations also reduce efficiency and increase the risk of incorrect installation of battery cells, resulting in increased product safety risks. Manual operations not only require high operating skills for personnel, but also cause great difficulties in quality and control. Summary of the invention

[0003] The objectives of the present invention include, for example, providing a method and system for shaping and guiding the insertion of a battery cell, which can avoid manual work and automatically shape the soft-pack battery cell so that the pole tab obtains an accurate planar position, ensures that the battery cell pole tab is guided into the bus bracket, improves the effectiveness and reliability of assembly, and improves assembly efficiency and quality, and reduces assembly risks.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] In a first aspect, the present invention provides a method for shaping a tab and guiding a core plug, comprising:

[0006] Compress and test the thickness of the soft-pack battery cell under the preset pressure;

[0007] Establishing a primary reference surface based on the thickness calculation;

[0008] Shaping the soft-pack battery cell according to the primary reference surface;

[0009] Calculating and establishing a secondary reference surface based on the primary reference surface;

[0010] Reshaping the tabs of the soft-pack battery cell according to the secondary reference surface;

[0011] Fixing the soft-pack battery cell on a contoured positioning tool at a preset position;

[0012] The soft-pack battery cell is guided into the busbar support.

[0013] In an optional embodiment, the step of pressing and detecting the thickness of the soft-pack battery cell under a preset pressure includes:

[0014] Positioning and supporting the lower surface of the soft-pack battery cell by a lifting and positioning mechanism;

[0015] Compressing the upper surface of the soft-pack battery cell with a preset pressure by a pressing and positioning mechanism;

[0016] The thickness of the soft-pack battery cell is detected by a thickness detection component.

[0017] In an optional embodiment, the step of shaping the soft-pack battery cell according to the primary reference surface includes:

[0018] The soft-pack battery is shaped from top to bottom by an upper compression cover and a lower compression cover.

[0019] In an optional embodiment, the step of calculating and establishing a secondary reference surface based on the primary reference surface includes:

[0020] Establishing a secondary reference plane by calculating the relative positions of the primary reference plane and the tab;

[0021] Wherein, the secondary reference surface is the supporting surface of the tab.

[0022] In an optional embodiment, the step of shaping the tab of the soft-pack battery cell according to the secondary reference surface includes:

[0023] Moving the support platform to the secondary reference surface and joining it to the lower surface of the tab;

[0024] The tab shaping and guiding mechanism cooperates with the support platform to shape and guide the tab.

[0025] In an optional embodiment, the step of fixing the soft-pack battery cell on a contoured positioning tool at a preset position includes:

[0026] The shaped soft-pack cells are assembled two by two on the profiling positioning tooling through a machine transfer mechanism;

[0027] Fixing and hardening the soft-pack battery cell by the contour positioning tool;

[0028] The profiling positioning tool is moved to a preset position by a positioning mechanism and surface shaping is performed.

[0029] In a second aspect, the present invention provides a tab shaping and guiding plugging system, which is applicable to the tab shaping and guiding plugging method as described in any one of the aforementioned embodiments, and the system comprises:

[0030] A detection device, the detection device is used to detect the thickness of the soft-pack battery cell under a preset pressure;

[0031] A control device, the control device being in communication with the detection device and configured to calculate and establish a primary reference surface based on the thickness;

[0032] A cell shaping and pressing device, the cell shaping and pressing device is connected to the detection device and is in communication with the control device, and is used to shape the soft-pack cell according to the primary reference surface;

[0033] The control device is also used to calculate and establish a secondary reference surface based on the primary reference surface;

[0034] A tab shaping and pressing device, the tab shaping and pressing device is communicatively connected to the control device and is used to shape the tab of the soft-pack battery cell according to the secondary reference surface;

[0035] A contour positioning tool is used to fix the soft-pack battery cell at a preset position and guide the soft-pack battery cell into a bus bracket.

[0036] In an optional embodiment, the detection device includes a lifting and positioning mechanism and a pressing and positioning mechanism, the lifting and positioning mechanism is used to position and support the lower surface of the soft-pack battery cell, the pressing and positioning mechanism is provided with a pressure detection component, which is used to press the upper surface of the soft-pack battery cell with a preset pressure, and the pressing and positioning mechanism is also provided with a thickness detection component, which is used to detect the thickness of the soft-pack battery cell in the pressed state.

[0037] In an optional embodiment, the battery cell shaping and pressing device includes an upper pressing cover and a lower pressing cover, the upper pressing cover is connected to the clamping and positioning mechanism, and the lower pressing cover is connected to the lifting and positioning mechanism, and the upper pressing cover and the lower pressing cover are used to shape the soft-pack battery from the top and bottom directions.

[0038] In an optional embodiment, the pole lug shaping and pressing device includes a support table, a pole lug shaping guide mechanism, a switching shaping and pressing mechanism and an execution adjustment mechanism. The support table is transmission-connected to the execution adjustment mechanism for moving to the secondary reference plane and engaging to the lower surface of the pole lug under the drive of the execution adjustment mechanism. The pole lug shaping guide mechanism is transmission-connected to the switching shaping and pressing mechanism for pressing on the pole lug under the drive of the switching shaping and pressing mechanism to shape and guide the pole lug.

[0039] In an optional embodiment, the contoured positioning tooling includes a carrier frame and a limit frame, the limit frame is arranged at one end of the carrier frame, the carrier frame is provided with a contoured boss, the contoured boss is used to adapt to the shape of the soft-pack battery cell, and the contoured boss is also provided with a vacuum adsorption hole, the vacuum adsorption hole is used to adsorb and fix the soft-pack battery cell.

[0040] In an optional embodiment, the tab shaping and guiding plug-in core system further includes a positioning mechanism, which is transmission-connected to the profiling positioning tooling and is used to move the profiling positioning tooling to a preset position.

[0041] The beneficial effects of the embodiments of the present invention include, for example:

[0042] The method and system for lug shaping and guiding battery cell insertion provided in the embodiments of the present invention first press and detect the thickness of the soft-pack under a preset pressure, then calculate and establish a primary reference plane based on the thickness, the primary reference plane can calibrate the overall position relationship of the soft-pack battery cell, and the overall shape of the soft-pack battery cell can be shaped based on the primary reference plane, and then calculate and establish a secondary reference plane based on the primary reference plane, the secondary reference plane can calibrate the lug position of the soft-pack battery cell, and then shape the lug based on the secondary reference plane, and then fix the soft-pack battery cell on a contoured positioning tooling at a preset position, and finally guide the soft-pack battery cell into the bus bracket. Compared with the prior art, the present invention determines a primary reference plane by thickness, and further determines a secondary reference plane, thereby realizing the shaping and fixing action of the soft-pack battery cell and its pole ear, and then the shaped soft-pack battery cell is fixed by a positioning tool and guided into the bus bracket. The whole process can be completed by automated equipment, and a reliable reference can be provided to the automated tooling equipment for positioning and shaping, thereby avoiding manual work, and automatically shaping the soft-pack battery cell so that the pole ear obtains an accurate planar position, ensuring that the battery cell pole ear is guided into the bus bracket, thereby improving the effectiveness and reliability of assembly, and improving assembly efficiency and quality, and reducing assembly risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 A schematic diagram of the overall structure of a tab shaping and guiding plug-in battery system provided in an embodiment of the present invention;

[0045] Figure 2 A schematic diagram of the partial structure of a tab shaping and guiding plug-in core system provided in an embodiment of the present invention;

[0046] Figure 3 for Figure 1 Schematic diagram of the assembly structure of the middle profiling and positioning tooling;

[0047] Figure 4 for Figure 3Structural schematic diagram of the middle profiling and positioning tooling;

[0048] Figure 5 A flowchart of the method for shaping and guiding a tab and inserting a battery cell provided in an embodiment of the present invention.

[0049] Icons: 100-ear tab shaping and guiding plug-in cell system; 110-detection device; 111-lifting and positioning mechanism; 113-pressing and positioning mechanism; 115-thickness detection assembly; 117-pressure detection assembly; 150-cell shaping and pressing device; 151-upper pressing cover; 153-lower pressing cover; 170-ear tab shaping and pressing device; 171-support table; 173-ear tab shaping and guiding mechanism; 175-switching shaping and pressing mechanism; 177-execution adjustment mechanism; 190-contact positioning tooling; 191-carrying frame; 193-limiting frame; 195-contact boss; 197-vacuum adsorption hole; 199-positioning mechanism; 200-soft-pack cell; 300-bus bracket. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0053] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0055] As disclosed in the background technology, in the prior art, due to the structural characteristics of the soft-pack battery cells themselves, it is difficult to directly obtain a reliable, effective, and stable reference positioning surface during the grouping process, which makes it difficult to shape them, and it is difficult to provide a reliable reference for automated tooling equipment to capture and position the shaping. The conventional practice is to manually perform the action of threading the tabs through the busbars. However, this method is inefficient and has a high risk of installation errors, which increases the risk of product safety. In addition, manual operations not only require high operating skills from personnel, but also cause great difficulties in quality and control.

[0056] In order to solve the above problems, the present invention provides a method and system for guiding the shaping of a tab and inserting a battery core. It should be noted that the features in the embodiments of the present invention can be combined with each other without conflict.

[0057] Please refer to Figures 1 to 4 The present embodiment provides a tab shaping and guiding cell insertion system 100, which can avoid manual work and automatically shape the soft-pack cell 200, so that the tab obtains an accurate planar position, ensuring that the cell tab can be guided into the busbar bracket 300 by automated equipment, thereby improving the effectiveness and reliability of assembly, and improving assembly efficiency and quality, and reducing assembly risks.

[0058] The present embodiment provides a tab shaping and guiding cell insertion system 100, comprising a detection device 110, a control device, a cell shaping and pressing device 150, a tab shaping and pressing device 170 and a profiling and positioning tool 190, wherein the detection device 110 is used to press and detect the thickness of the soft-pack cell 200 under a preset pressure; the control device is communicated with the detection device 110, and is used to establish a primary reference plane based on thickness calculation; the cell shaping and pressing device 150 is connected to the detection device 110 and is communicated with the control device, and is used to shape the soft-pack cell 200 based on the primary reference plane; the control device is also used to establish a secondary reference plane based on the calculation of the primary reference plane; the tab shaping and pressing device 170 is communicated with the control device, and is used to shape the tab of the soft-pack cell 200 based on the secondary reference plane; the profiling and positioning tool 190 is used to fix the soft-pack cell 200 at a preset position and guide the soft-pack cell 200 into the bus bracket 300.

[0059] In this embodiment, when the tab is actually passed through the busbar, the battery cell needs to be automatically shaped first. Specifically, the soft-pack battery cell 200 is first compressed under a preset pressure by the detection device 110. The preset pressure value can be monitored by the pressure detection component 117 to form a closed-loop feedback control. Then, the standard thickness of the soft-pack battery cell 200 under the preset pressure state is detected. After the control device obtains the thickness value of the soft-pack battery cell 200, a primary reference plane can be calculated and established through the built-in calculation and analysis module. The primary reference plane can be the central parting plane of the soft-pack battery cell 200. Then, the primary reference plane is used as the shaping reference, and the battery cell shaping and pressing device 150 is used to press and shape the shape of the battery cell so that the shell of the soft-pack battery cell 200 tends to solidify. Then, the control device calculates and establishes a secondary reference plane based on the parameters of the primary reference plane through the built-in calculation and analysis module. The secondary reference plane can be the lower surface of the pole ear of the soft-pack battery cell 200. Then, the pole ear shaping and pressing device 170 shapes the pole ear of the soft-pack battery cell 200 based on the secondary reference plane, and then the soft-pack battery cell 200 is transferred to the profiling positioning tooling 190 through a robotic arm or a servo mechanism. The profiling positioning tooling 190 can fix the soft-pack battery cell 200 at a preset position and guide the soft-pack battery cell 200 into the busbar bracket 300.

[0060] It should be noted that in this embodiment, the detection device 110 can obtain the thickness of the soft-pack battery cell 200 under a preset pressure, and the control device calculates and establishes a primary reference plane and a secondary reference plane, and the battery cell shaping and pressing device 150 can shape the soft-pack battery cell 200 as a whole according to the primary reference plane, and the tab shaping and pressing device 170 can shape the tabs of the soft-pack battery cell 200 according to the secondary reference plane, so that the tabs obtain an accurate planar position, ensuring that the subsequent tabs can be accurately guided into the bus bracket 300.

[0061] It is worth noting that the control device in this embodiment can be a central control machine, such as a single-chip microcomputer, which can control various action devices and detection devices 110 of the entire system.

[0062] The detection device 110 includes a lifting and positioning mechanism 111 and a pressing and positioning mechanism 113. The lifting and positioning mechanism 111 is used to position and support the lower surface of the soft-pack battery cell 200. The pressing and positioning mechanism 113 is provided with a pressure detection component 117, which is used to press the upper surface of the soft-pack battery cell 200 with a preset pressure, wherein the pressure detection component 117 can monitor the pressing pressure and form a closed-loop control to ensure that the pressing and positioning mechanism 113 is pressed on the surface of the soft-pack battery cell 200 with a preset pressure. The pressing and positioning mechanism 113 is also provided with a thickness detection component 115, and the thickness detection component 115 is used to detect the thickness of the soft-pack battery cell 200 in the pressed state. Specifically, the lifting and positioning mechanism 111 and the pressing and positioning mechanism 113 can both use electric cylinders, servo motors, cylinders or hydraulic cylinders as driving sources, and the thickness detection component 115 can use optical sensors, infrared sensors, contact LVDTs, etc. to detect the thickness of the soft-pack battery cell 200, and its specific detection method is not limited here.

[0063] In this embodiment, the pressing and positioning mechanism 113 is further provided with a pressure detection component 117, which can detect in real time the pressure value applied by the lifting and positioning mechanism 111 on the soft-pack battery cell 200, and control the pressing and positioning mechanism 113 to stop and maintain the action after reaching the preset pressure. The preset pressure can be a pressure equivalent to a 20kg weight, and at this pressure value, the actual appearance structure of the soft-pack battery cell 200 can be well characterized.

[0064] In this embodiment, the battery cell shaping and pressing device 150 includes an upper pressing cover 151 and a lower pressing cover 153. The upper pressing cover 151 is connected to the pressing and positioning mechanism 113, and the lower pressing cover 153 is connected to the lifting and positioning mechanism 111. The upper pressing cover 151 and the lower pressing cover 153 are used to shape the soft-pack battery from the upper and lower directions. Specifically, the upper pressing cover 151 and the lower pressing cover 153 are in a state of separation and spacing from each other, and will not abut, contact or interfere with each other during the shaping process, and always ensure that they are in a clearance fit state, thereby ensuring the detection accuracy of the thickness detection component 115. In addition, the upper pressing cover 151 and the lower pressing cover 153 are arranged relative to each other and together form a rectangular accommodating cavity, which is used to accommodate the soft-pack battery cell 200, so that the soft-pack battery cell 200 can be shaped into a rectangular block-shaped battery cell structure, which is convenient for the subsequent moving and fixing steps.

[0065] It should be noted that in this embodiment, the lifting distance of the lifting and positioning mechanism 111 can be constant, that is, the lower pressing cover 153 on the lifting and positioning mechanism 111 stops after being lifted to a suitable position, and then the upper pressing cover 151 can be pressed against the upper surface of the soft-pack battery cell 200 by the pressing and positioning mechanism 113, and the pressure can be controlled.

[0066] The tab shaping and pressing device 170 includes a support platform 171, a tab shaping guide mechanism 173, a switching shaping and pressing mechanism 175, and an execution adjustment mechanism 177. The support platform 171 is connected to the execution adjustment mechanism 177 in a transmission manner, and is used to move to the secondary reference surface under the drive of the execution adjustment mechanism 177, and to be joined to the lower surface of the tab. The tab shaping guide mechanism 173 is connected to the switching shaping and pressing mechanism 175 in a transmission manner, and is used to be pressed on the tab under the drive of the switching shaping and pressing mechanism 175 to shape and guide the tab. Specifically, the execution adjustment mechanism 177 can also use an electric cylinder, a servo motor, a cylinder or a hydraulic cylinder as a driving source, and use a slide rail and slider combination to adjust the position of the support platform 171. The support platform 171 has a bearing surface that can move to the secondary reference surface, thereby joining to the lower surface of the tab, so that the tab shaping guide mechanism 173 can facilitate the planar shaping of the tab.

[0067] In this embodiment, the tab shaping guide mechanism 173 includes a shaping guide roller, which is arranged at the bottom side of the switching shaping and pressing mechanism 175, and is rolled and pressed on the tab under the drive of the switching shaping and pressing mechanism 175, so as to cooperate with the support platform 171 to perform planar shaping on the tab. Of course, the tab shaping guide mechanism 173 here can also include other shaping structures, such as a shaping block and a flattening block for turning over the folded tab, and the structure of the tab shaping here can specifically refer to the tab shaping mechanism in the prior art.

[0068] It should be noted that in this embodiment, the switching shaping and clamping mechanism 175 can switch the force direction, action point and force magnitude of the pole ear shaping guiding mechanism 173 along the X-axis, Y-axis and Z-axis directions, thereby realizing different shaping actions such as rolling and folding, and then realizing the rolling shaping of the pole ear in the three degrees of freedom directions, so that the pole ear obtains an accurate planar position and shape, ensuring that the battery cell pole ear is subsequently accurately guided into the bus bracket 300.

[0069] The profiling positioning tool 190 includes a carrier 191 and a limiting frame 193. The limiting frame 193 is arranged at one end of the carrier 191. The carrier 191 is provided with a profiling boss 195. The profiling boss 195 is used to match the shape of the soft-pack battery cell 200. The profiling boss 195 is also provided with a vacuum adsorption hole 197. The vacuum adsorption hole 197 is used to adsorb and fix the soft-pack battery cell 200. Specifically, the carrier 191 and the limiting frame 193 are integrally arranged to form an L-shaped structure. When the carrier 191 reaches the preset position, it can be located on one side of the bus bracket 300. The limiting frame 193 can be arranged on the side of the carrier 191 away from the bus bracket 300, thereby playing a role in resisting the soft-pack battery cell 200.

[0070] In this embodiment, after the pole ear shaping is completed, the soft-pack battery cell 200 that has completed shaping and curing can be transferred to the profiling positioning tool 190 through a robotic arm or a servo device. Under the action of the profiling boss 195 and vacuum adsorption, the soft-pack battery cell 200 and the profiling positioning tool 190 can be assembled into one, and the structure is integrated, wherein the pole ear side to be inserted is away from the limit frame 193.

[0071] Furthermore, the tab shaping guide plug-in core system 100 also includes a positioning mechanism 199, which is connected to the profiling positioning tool 190 by transmission, and is used to move the profiling positioning tool 190 to a preset position. Specifically, the positioning mechanism 199 may include a lead screw, a nut, and a drive member. An assembly hole may be provided on the carrier frame 191 of the profiling positioning tool 190, and the lead screw passes through the assembly hole. The profiling positioning tool 190 can be moved to a predetermined position through the joint action of the lead screw, the nut, and the drive member, so as to facilitate the subsequent loading of the bus bracket 300. Of course, the positioning mechanism 199 here can also be a robotic arm or other servo mechanism, which can move the profiling positioning tool 190 to a preset position.

[0072] Specifically, after the tabs are fully shaped, the soft-packed cells 200 can be combined in sequence in pairs, with foam inserted in the middle, and placed on the carrier 191 of the profiling and positioning fixture 190 by a manipulator or a servo device. Under the action of the profiling boss 195 and vacuum adsorption, the soft-packed cells 200 and the profiling and positioning fixture 190 can be assembled as one, and then the profiling and positioning fixture 190 is surface-shaped and positioned by the positioning mechanism 199, so that the profiling and positioning fixture 190 is moved to a preset position, and the envelope and shape required by the product result are obtained. Finally, the tabs of the soft-packed cells 200 on the profiling and positioning fixture 190 are guided into the busbar bracket 300 to complete the tab shaping and guiding cell insertion action.

[0073] See also Figure 5 This embodiment also provides a method for shaping a tab and guiding a core plugging, which is applicable to the aforementioned tab shaping and guiding a core plugging system 100, and the method comprises the following steps:

[0074] S1: Compress and detect the thickness of the soft-pack battery cell 200 under a preset pressure.

[0075] Specifically, the soft-pack battery cell 200 can be pressed by the detection device 110 at a preset pressure, and the standard thickness of the soft-pack battery cell 200 in this state can be detected. In actual detection, the lower surface of the soft-pack battery cell 200 can be positioned and supported by the lifting and positioning mechanism 111; the upper surface of the soft-pack battery cell 200 can be pressed by the pressing and positioning mechanism 113 at a preset pressure, and the pressure detection component 117 can be used to monitor the pressure and form a closed-loop feedback control; finally, the thickness of the soft-pack battery cell 200 can be detected by the thickness detection component 115. That is, the soft-pack battery cell 200 is carried by the lifting and positioning mechanism 111, and the soft-pack battery cell 200 is pressed by the pressing and positioning mechanism 113 at a preset pressure, and the thickness of the soft-pack battery cell 200 in this state can be detected by the thickness detection component 115.

[0076] S2: Establish a reference surface based on thickness calculation.

[0077] Specifically, after the control device obtains the thickness value of the soft-pack battery cell 200 , a primary reference plane may be calculated and established through a built-in calculation and analysis module. The primary reference plane may be a central parting plane of the soft-pack battery cell 200 .

[0078] S3: shaping the soft-pack battery cell 200 according to the primary reference surface.

[0079] Specifically, the primary reference surface is used as the shaping reference, and the cell shaping and pressing device 150 is used to press and shape the shape of the cell, so that the shell of the soft-pack cell 200 tends to solidify. The cell shaping and pressing device 150 includes an upper pressing cover 151 and a lower pressing cover 153, and the upper pressing cover 151 and the lower pressing cover 153 can realize the shaping action of the soft-pack cell 200 from the upper and lower directions, and the soft-pack battery is shaped from the upper and lower directions by the upper pressing cover 151 and the lower pressing cover 153.

[0080] S4: Establish the secondary datum surface based on the primary datum surface calculation.

[0081] Specifically, the control device establishes the secondary reference plane based on the parameters of the primary reference plane through the built-in calculation and analysis module. Specifically, the secondary reference plane can be established by calculating the relative position of the primary reference plane and the pole ear; wherein the secondary reference plane is the supporting surface of the pole ear, that is, the secondary reference plane can be the lower surface of the pole ear of the soft-pack battery cell 200.

[0082] S5: shaping the tabs of the soft-pack battery cell 200 according to the secondary reference surface.

[0083] Specifically, the tab shaping and pressing device 170 shapes the tab of the soft-pack battery cell 200 according to the secondary reference surface to ensure that the tab has an accurate shape and position, thereby facilitating subsequent guidance into the busbar support 300. During the actual shaping, the support platform 171 can be moved to the secondary reference surface and joined to the lower surface of the tab; then the tab shaping guide mechanism 173 cooperates with the support platform 171 to shape and guide the tab.

[0084] S6: Fix the soft-pack battery cell 200 on the contoured positioning tool 190 at a preset position.

[0085] Specifically, the soft-pack battery cell 200 is transferred to the profiling and positioning tool 190 by a mechanical arm or a servo mechanism, and the profiling and positioning tool 190 can fix the soft-pack battery cell 200 at a preset position to achieve surface shaping and positioning. During actual assembly, the shaped soft-pack battery cells 200 can first be assembled on the profiling and positioning tool 190 in pairs through the machine transfer mechanism, and then the soft-pack battery cell 200 is fixed and hardened by the profiling and positioning tool 190, and finally the profiling and positioning tool 190 is moved to a preset position by the positioning mechanism 199 and surface shaping is performed.

[0086] S7: guiding the soft-pack battery cell 200 into the busbar support 300 .

[0087] In an optional embodiment, the step of shaping the tab of the soft-pack battery cell 200 according to the secondary reference surface includes:

[0088] To summarize, the method and system for guiding the lug shaping and plugging of battery cells provided in the present embodiment first press and detect the thickness of the soft-pack under a preset pressure, and then calculate and establish a primary reference plane based on the thickness, and the primary reference plane can calibrate the overall position relationship of the soft-pack battery cell 200, and the overall shape of the soft-pack battery cell 200 can be shaped based on the primary reference plane, and then calculate and establish a secondary reference plane based on the primary reference plane, and the secondary reference plane can calibrate the position of the lug of the soft-pack battery cell 200, and then shape the lug based on the secondary reference plane, and then fix the soft-pack battery cell 200 on the contoured positioning tooling 190 at a preset position, and finally guide the soft-pack battery cell 200 into the bus bracket 300. Compared with the prior art, this embodiment determines a primary reference plane by thickness, and further determines a secondary reference plane, thereby realizing the shaping and fixing action of the soft-pack battery cell 200 and its tabs, and then the shaped soft-pack battery cell 200 is fixed by a positioning tool and guided into the bus bracket 300. The entire process can be completed by automated equipment, and a reliable reference can be provided to the automated tooling equipment for positioning and shaping, thereby avoiding manual work, and automatically shaping the soft-pack battery cell 200 so that the tabs obtain an accurate planar position, ensuring that the battery cell tabs are guided into the bus bracket 300, thereby improving the effectiveness and reliability of assembly, and improving assembly efficiency and quality, and reducing assembly risks.

[0089] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for shaping and guiding a tab and inserting a battery core, characterized in that: include: Compressing and detecting the thickness of the soft-pack battery cell (200) under a preset pressure; Establishing a primary reference surface based on the thickness calculation; Shaping the soft-pack battery core (200) according to the primary reference surface; Calculating and establishing a secondary reference surface based on the primary reference surface; Reshaping the tabs of the soft-pack battery cell (200) according to the secondary reference surface; Fixing the soft-package battery core (200) on a contoured positioning tool (190) at a preset position; The soft-package battery cell (200) is guided into a busbar support (300).

2. The method for guiding and inserting a battery core by shaping a tab according to claim 1, characterized in that: The step of pressing and detecting the thickness of the soft-pack battery cell (200) under a preset pressure comprises: Positioning and supporting the lower surface of the soft-package battery core (200) by means of a lifting and positioning mechanism (111); Using a pressing and positioning mechanism (113) to press the upper surface of the soft-package battery cell (200) with a preset pressure; The thickness of the soft-pack battery cell (200) is detected by a thickness detection component (115).

3. The method for guiding and inserting a battery core by shaping a tab according to claim 1, characterized in that: The step of shaping the soft-pack battery cell (200) according to the primary reference surface comprises: The soft-pack battery is shaped from top to bottom by an upper pressing cover (151) and a lower pressing cover (153).

4. The method for guiding and inserting a battery core by shaping a tab according to claim 1, characterized in that: The step of calculating and establishing a secondary reference surface based on the primary reference surface comprises: Establishing a secondary reference plane by calculating the relative positions of the primary reference plane and the tab; Wherein, the secondary reference surface is the supporting surface of the tab.

5. The method for guiding and inserting a battery core by shaping a tab according to claim 4, characterized in that: The step of shaping the tab of the soft-pack battery cell (200) according to the secondary reference surface comprises: Moving the support platform (171) to the secondary reference surface and joining it to the lower surface of the tab; The tab shaping and guiding mechanism (173) cooperates with the support platform (171) to shape and guide the tab.

6. The method for guiding and inserting a battery core by shaping a tab according to claim 1, characterized in that: The step of fixing the soft-package battery core (200) on a contoured positioning tool (190) at a preset position comprises: The shaped soft-packaged battery cells (200) are assembled two by two on the contouring positioning tooling (190) through a machine transfer mechanism; Fixing and hardening the soft-package battery core (200) by using the contoured positioning tool (190); The profiling positioning tool (190) is moved to a preset position by a positioning mechanism (199) and surface shaping is performed.

7. A tab shaping and guiding plugging system, applicable to the tab shaping and guiding plugging method according to any one of claims 1 to 6, characterized in that: The system comprises: A detection device (110), the detection device (110) being used to compress and detect the thickness of the soft-pack battery cell (200) under a preset pressure; A control device, the control device being in communication with the detection device (110) and used for establishing a primary reference surface based on the thickness calculation; A cell shaping and pressing device (150), the cell shaping and pressing device (150) being connected to the detection device (110) and being in communication connection with the control device, and being used for shaping the soft-package cell (200) according to the primary reference surface; The control device is also used to calculate and establish a secondary reference surface based on the primary reference surface; A tab shaping and pressing device (170), the tab shaping and pressing device (170) being communicatively connected to the control device and used for shaping the tab of the soft-pack battery cell (200) according to the secondary reference surface; A contour positioning tool (190), the contour positioning tool (190) is used to fix the soft-package battery cell (200) at a preset position and guide the soft-package battery cell (200) into a busbar support (300).

8. The tab shaping and guiding plug-in system according to claim 7, characterized in that: The detection device (110) comprises a lifting and positioning mechanism (111) and a pressing and positioning mechanism (113); the lifting and positioning mechanism (111) is used for positioning and supporting the lower surface of the soft-pack battery cell (200); the pressing and positioning mechanism (113) is provided with a pressure detection component (117) for pressing the upper surface of the soft-pack battery cell (200) with a preset pressure; the pressing and positioning mechanism (113) is also provided with a thickness detection component (115); the thickness detection component (115) is used for detecting the thickness of the soft-pack battery cell (200) in a pressed state.

9. The tab shaping and guiding plug-in system according to claim 8, characterized in that: The battery cell shaping and pressing device (150) comprises an upper pressing cover (151) and a lower pressing cover (153); the upper pressing cover (151) is connected to the pressing and positioning mechanism (113); the lower pressing cover (153) is connected to the lifting and positioning mechanism (111); the upper pressing cover (151) and the lower pressing cover (153) are used to shape the soft-pack battery from the top and bottom directions.

10. The tab shaping and guiding plug-in system according to claim 7, characterized in that: The pole lug shaping and pressing device (170) comprises a support platform (171), a pole lug shaping guide mechanism (173), a switching shaping and pressing mechanism (175) and an execution adjustment mechanism (177); the support platform (171) is connected in transmission with the execution adjustment mechanism (177) for moving to the secondary reference plane under the drive of the execution adjustment mechanism (177) and engaging with the lower surface of the pole lug; the pole lug shaping guide mechanism (173) is connected in transmission with the switching shaping and pressing mechanism (175) for pressing on the pole lug under the drive of the switching shaping and pressing mechanism (175) so as to shape and guide the pole lug.

11. The tab shaping and guiding plug-in system according to claim 7, characterized in that: The profiling positioning tool (190) comprises a carrier frame (191) and a limiting frame (193), wherein the limiting frame (193) is arranged at one end of the carrier frame (191), and the carrier frame (191) is provided with a profiling boss (195), wherein the profiling boss (195) is used to match the shape of the soft-package battery cell (200), and the profiling boss (195) is also provided with a vacuum adsorption hole (197), wherein the vacuum adsorption hole (197) is used to adsorb and fix the soft-package battery cell (200).

12. The tab shaping and guiding plug-in system according to claim 7, characterized in that: The tab shaping and guiding plug-in core system further comprises a positioning mechanism (199), wherein the positioning mechanism (199) is in driving connection with the profiling positioning tool (190) and is used to move the profiling positioning tool (190) to a preset position.

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