Gluing method and gluing system for battery box body and storage medium

Abstract

The invention provides a gluing method and a coating system of a battery box body and a storage medium, and is suitable for the technical field of battery manufacturing, the method comprises the following steps: obtaining second flatness data of a box body bottom surface of a to-be-assembled battery box body; acquiring first flatness data of the module bottom surface of the battery module to be assembled; and calculating gluing data between the bottom surface of the module and the bottom surface of the box body based on the first flatness data and the second flatness data. According to the invention, appropriate gluing data can be generated according to the actual conditions of the battery box body to be assembled and the battery module, so that the bonding quality between the battery module and the battery box body can be ensured.

Description

Technical Field

[0001] This application belongs to the field of battery manufacturing technology, and in particular relates to a method for applying adhesive to a battery casing, a coating system, and a storage medium. Background Technology

[0002] During the battery installation process before the battery leaves the factory, a layer of glue is applied to the bottom of the battery box to improve the structural strength and insulation performance between the battery module and the battery box. However, since the bottom plate of the box is relatively thin, there is a certain flatness tolerance of the bottom plate after it is spliced ​​with the side beam of the box. This will affect the amount of glue applied, and thus affect the bonding quality of the battery module. Summary of the Invention

[0003] This application provides a method for applying adhesive to a battery casing, a coating system, and a storage medium, which can solve the technical problem of unsatisfactory adhesive application between the battery casing and the battery module during the current battery assembly process.

[0004] In a first aspect, embodiments of this application provide a method for applying adhesive to a battery casing, including:

[0005] Obtain the second flatness data of the bottom surface of the battery box to be assembled;

[0006] Obtain the first flatness data of the bottom surface of the battery module to be assembled;

[0007] Based on the first flatness data and the second flatness data, the adhesive application data between the bottom surface of the module and the bottom surface of the housing is calculated.

[0008] In this embodiment, appropriate adhesive data can be generated based on the actual situation of the battery box and battery module to be assembled, thereby ensuring the bonding quality between the battery module and the battery box.

[0009] In some embodiments, the method further includes:

[0010] The adhesive application equipment is controlled to apply adhesive to the bottom surface of the box according to the adhesive application data.

[0011] In this embodiment, the optimal adhesive application data is calculated based on the bottom plane data of the battery module and the bottom plane data of the battery box, and adhesive is automatically applied to the bottom surface of the box. This reduces adhesive overflow and avoids delamination between the battery module and the battery box due to insufficient adhesive, while also saving labor costs.

[0012] In some embodiments, obtaining the first flatness data of the bottom surface of the battery module to be assembled includes:

[0013] Collect point cloud images of the bottom surface of the battery module to be assembled;

[0014] Based on the point cloud image of the bottom surface of the module, the first flatness data is obtained;

[0015] The process of obtaining the second flatness data of the bottom surface of the battery box to be assembled includes:

[0016] Collect point cloud images of the bottom surface of the battery box to be assembled;

[0017] Based on the point cloud image of the bottom surface of the box, the second flatness data is obtained.

[0018] In this embodiment, the point cloud images of the bottom surface of the battery box to be assembled and the bottom surface of the battery module to be assembled can be used to simulate flatness, which helps to accurately calculate the ideal adhesive coating data between the two bottom surfaces.

[0019] In some embodiments, calculating the adhesive application data between the bottom surface of the module and the bottom surface of the housing based on the first flatness data and the second flatness data includes:

[0020] The first flatness data and the second flatness data are fitted together to obtain the spatial fitting result;

[0021] The adhesive application trajectory and amount between the bottom surface of the module and the bottom surface of the box are obtained based on the spatial fitting results.

[0022] In this embodiment, the flatness data of the bottom surface of the battery module and the flatness data of the bottom surface of the battery box are fitted to obtain a spatial fitting result. The spatial fitting result can accurately determine the adhesive application space and position, and then an ideal adhesive application trajectory and amount are generated based on this spatial fitting result.

[0023] In some embodiments, generating the adhesive application trajectory between the bottom surface of the module and the bottom surface of the housing based on the spatial fitting result includes:

[0024] Based on the spatial fitting results, the bottom surface of the box is divided into multiple sub-coating areas;

[0025] Calculate the inner contour parameters of each of the sub-coating regions;

[0026] The step of generating the amount of adhesive applied between the bottom surface of the module and the bottom surface of the housing based on the adhesive application trajectory includes:

[0027] The moving speed and dispensing speed of the adhesive coating equipment are obtained based on the inner contour parameters of the sub-coating area.

[0028] The amount of adhesive applied between the bottom surface of the module and the bottom surface of the housing is calculated based on the moving speed and the dispensing speed.

[0029] In this embodiment, the spatial fitting result is divided into multiple sub-coating regions, and then the inner contour parameters of the sub-coating regions are obtained. Based on the inner contour parameters of each sub-coating region, the appropriate moving speed and dispensing speed of the coating equipment are matched, and the optimal coating amount is calculated based on the appropriate moving speed and dispensing speed.

[0030] In some embodiments, the method further includes:

[0031] In response to the glue amount adjustment command for the glue application amount, the target glue amount is obtained;

[0032] The adhesive application equipment is controlled to apply adhesive to the bottom surface of the box according to the target amount of adhesive.

[0033] In this embodiment, relevant personnel in the battery assembly plant can also make appropriate adjustments to the calculated amount of adhesive according to their own needs, so that the adhesive coating equipment can complete the adhesive coating based on the target amount of adhesive adjusted by the personnel, making the personnel able to operate flexibly and conveniently.

[0034] Secondly, this application also proposes a battery box coating system, the system including module testing equipment, coating equipment and control equipment; the control equipment includes a processor, a memory and a computer program stored in the memory and executable on the processor, the processor executing the computer program to implement the method described in the first aspect above;

[0035] The adhesive application equipment is configured to acquire image resolution data of the bottom surface of the battery box to be assembled.

[0036] The module testing equipment is configured to acquire image data of the bottom surface of the battery module to be assembled.

[0037] In this embodiment, the control device can generate appropriate adhesive data based on the actual condition of the bottom surface of the battery box to be assembled collected by the adhesive coating equipment and the actual bottom surface of the battery module to be assembled collected by the module detection equipment, thereby ensuring the bonding quality between the battery module and the battery box.

[0038] In some embodiments, the module testing device includes a truss mechanism, a drive motor, and a first positioning mechanism; a first camera is mounted on the truss mechanism.

[0039] The first positioning mechanism is configured to mechanically fix the battery module to be assembled;

[0040] The drive motor is configured to drive the truss mechanism to move the first camera in a first direction and a second direction to acquire images of the bottom surface of the battery module to be assembled; the second direction is perpendicular to the first direction.

[0041] In this embodiment, after the module testing equipment fixes the battery module to be assembled, it drives the first camera to collect images of the bottom surface of the battery module to be assembled in two directions through the truss mechanism, and the collected image data of the bottom surface of the battery module is more detailed.

[0042] In some embodiments, the truss mechanism includes a first crossbeam and a second crossbeam arranged parallel to each other in the first direction, and a moving mechanism arranged in the second direction, wherein the first camera is disposed on the moving mechanism; both the first crossbeam and the second crossbeam are provided with slide rails; the moving mechanism is located above the first crossbeam and the second crossbeam; the moving mechanism is provided with the first camera and a rolling device;

[0043] The drive motor is also configured to drive the moving mechanism to move along the slide rails of the first crossbeam and the second crossbeam, so as to drive the first camera to capture images of the bottom surface of the battery module to be assembled in the first direction.

[0044] The drive motor is also configured to drive the rolling device to drive the first camera to capture images of the bottom surface of the battery module to be assembled in the second direction.

[0045] In this embodiment, the drive motor drives the moving mechanism to scan the bottom image of the battery module in a first direction above the battery module, while the drive rolling device moves the moving mechanism to scan the bottom image of the battery module in a second direction above the battery module, which can more comprehensively collect the point cloud image of the bottom surface of the module.

[0046] In some embodiments, the adhesive application equipment includes a second camera, an adhesive application assembly, and a second positioning mechanism;

[0047] The second positioning mechanism is configured to mechanically position the battery box to be assembled;

[0048] The second camera is configured to acquire image resolution data of the bottom surface of the battery box to be assembled;

[0049] The adhesive application component is configured to apply adhesive to the bottom surface of the housing according to adhesive application data, which is generated based on the image resolution data of the bottom surface of the housing and the image resolution data of the bottom surface of the module.

[0050] In this embodiment, the control device automatically applies adhesive to the bottom surface of the battery box by calculating the optimal adhesive application data based on the bottom plane data of the battery module and the bottom plane data of the battery box. This reduces adhesive overflow and avoids delamination between the battery module and the battery box due to insufficient adhesive.

[0051] In some embodiments, the adhesive application equipment further includes a drive device, the drive device having a robotic arm, and the adhesive application assembly and the second camera are both mounted on the robotic arm;

[0052] The drive device is configured to drive the robotic arm to move, thereby driving the second camera to capture images of the bottom surface of the battery box.

[0053] The drive device is also configured to drive the robotic arm to move, thereby causing the adhesive application assembly to apply adhesive to the bottom surface of the box according to the adhesive application data.

[0054] In this embodiment, the control device drives the robotic arm to move the second camera to acquire images of the bottom surface of the box, and at the same time drives the glue application component to apply glue to the bottom surface of the box according to the glue application data, which can replace manual glue application and save labor costs.

[0055] In some embodiments, the adhesive application system further includes an adhesive metering system; the adhesive metering system is connected to the adhesive application assembly via an adhesive supply pipeline;

[0056] The control device is further configured to control the glue supply metering system to generate a corresponding amount of glue according to the glue application data, so that the glue supply metering system delivers the glue to the glue application assembly through the glue supply pipeline.

[0057] In this embodiment of the application, a complete glue supply and dispensing system is provided. The glue supply metering system can accurately generate the glue amount corresponding to the glue application data, and deliver it to the glue application component through the glue supply pipeline for glue application. The glue amount can be switched at any time according to changes in battery products, and the glue application of the box is highly flexible.

[0058] Thirdly, this application also proposes a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in the first aspect above.

[0059] It is understandable that the beneficial effects of the third aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0060] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0061] Figure 1 This application provides a schematic flowchart of an embodiment of a method for applying adhesive to a battery casing.

[0062] Figure 2 This is a schematic diagram of the adhesive coating system for the battery housing provided in an embodiment of this application;

[0063] Figure 3 A schematic diagram illustrating the acquisition of point cloud images of the bottom surface of the battery box and the bottom surface of the battery module, provided in the embodiments of this application;

[0064] Figure 4 A schematic flowchart illustrating another embodiment of the adhesive application method for a battery box provided in this application;

[0065] Figure 5 A schematic diagram relating to the adhesive application space provided in this application;

[0066] Figure 6 This is a schematic diagram of the adhesive coating equipment provided in the embodiments of this application;

[0067] Figure 7 A schematic flowchart illustrating another embodiment of the adhesive application method for a battery casing provided in this application;

[0068] Figure 8 This is a schematic diagram of the adhesive supply system provided in the embodiments of this application;

[0069] Figure 9 This is a schematic diagram of the module testing equipment provided in an embodiment of this application. Detailed Implementation

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0071] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0072] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0073] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), unless otherwise expressly and specifically defined.

[0074] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0075] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0076] The inventors of this application noted that during the battery installation process before the battery leaves the factory, in order to improve the structural strength and insulation performance between the battery module and the battery box, a layer of glue is applied to the bottom of the battery box. Taking CTC type batteries as an example, since the thickness of the bottom plate of the battery box to be installed is only about 0.7mm, after the bottom plate of the battery box and the side beam of the battery box are spliced, there is a flatness tolerance of ±4mm (or more) in the bottom plate of the box, which affects the amount of glue applied and thus affects the bonding quality of the battery module.

[0077] Currently, during battery assembly, there are issues with applying too much or too little adhesive when bonding battery modules to the battery casing. Applying too much adhesive results in excess adhesive during bonding, leading to wasted adhesive and additional time spent scraping off excess material. Applying too little adhesive results in insufficient adhesive at the bottom of the battery module, causing it to detach from the casing under harsh environmental conditions.

[0078] To address the technical problem of unsatisfactory adhesive application between the battery casing and battery modules during battery assembly, the inventors, through in-depth research, proposed an adhesive application method, adhesive application system, and storage medium for the battery casing.

[0079] To illustrate the technical solutions proposed in the embodiments of this application, specific embodiments are described below.

[0080] Example 1

[0081] Please see Figure 1 , Figure 1 This is a flowchart illustrating a first embodiment of a method for applying adhesive to a battery casing, as provided in this application. The method for applying adhesive to a battery casing is applied to an adhesive application system for the battery casing. Please refer to... Figure 2 , Figure 2 This application provides a battery casing adhesive coating system, comprising: a module testing device 01, an adhesive coating device 02, and a control device 03. The control device 03 is the executing entity in this application's control method embodiment. The control device 03 may be located in a battery assembly workshop and includes multiple controllers (e.g., a first camera controller, a second camera controller, a robot controller, and a host PLC). Alternatively, the control device 03 may be a remote computer terminal device (i.e., sending control commands to the module testing device 01 and the adhesive coating device 02 located in the battery assembly workshop via remote instructions).

[0082] The control device 03 of this application embodiment includes: at least one processor, a memory, and a computer program stored in the memory and executable on the at least one processor. When the processor executes the computer program, it implements the steps in the battery box coating method embodiment of this application.

[0083] Control device 03 may include input / output devices, network access devices, etc. The processor may be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0084] In some embodiments, the memory may be an internal storage unit of the control device 03, such as a hard disk or RAM of the control device 03. In other embodiments, the memory may be an external storage device of the control device 03, such as a plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) card, or Flash Card equipped on the control device 03. Further, the memory may include both internal storage units and external storage devices of the control device 03. The memory is used to store the operating system, applications, bootloader, data, and other programs, such as the program code of the computer program. The memory can also be used to temporarily store data that has been output or will be output.

[0085] Accordingly, the adhesive application method for the battery casing in this application mainly includes steps SO1 to S03:

[0086] Step S01: Obtain the first flatness data of the bottom surface of the battery module to be assembled.

[0087] It should be noted that the control device 03 in this embodiment is taken as an example located in the battery assembly workshop;

[0088] Specifically, after the battery module composed of multiple cells is assembled, the assembled battery module can be transported to the first positioning mechanism 011 of the module testing equipment 01 through the "module trolley tray" in the workshop; the module testing equipment 01 includes a truss mechanism, a drive motor and the first positioning mechanism 011; a first camera 012 is installed on the truss mechanism.

[0089] In its specific implementation, the first positioning mechanism 011 mechanically fixes the battery module to be assembled and lifts it to a preset horizontal plane. The control device 03 can control the drive motor of the module detection device 01 to work, thereby driving the truss mechanism to move the first camera 012 on the truss mechanism in the first and second directions and to acquire images of the bottom surface of the battery module to be assembled (the second direction is perpendicular to the first direction). The first camera 012 sends the acquired three-dimensional point cloud image of the bottom surface of the module to the control device 03. The control device 03 obtains the first flatness data of the bottom surface of the battery module to be assembled based on the three-dimensional point cloud image of the bottom surface of the module.

[0090] Step S02: Obtain the second flatness data of the bottom surface of the battery box to be assembled;

[0091] The adhesive application equipment 02 includes a second positioning mechanism 021, a second camera 022, and an adhesive application component 023;

[0092] Specifically, in this embodiment of the application, the battery box to be assembled can be transported to the second positioning mechanism 021 of the gluing equipment 02 via the "AGV trolley pallet" in the workshop. The second positioning mechanism 021 mechanically fixes the battery box to be assembled and lifts it to a preset horizontal position. The control device 03 controls the second camera 022 to scan the bottom surface of the battery box to obtain image resolution data of the bottom surface of the box.

[0093] The second camera 022 sends the three-dimensional point cloud image of the bottom surface of the housing to the control device 03. Based on the three-dimensional point cloud image of the bottom surface of the housing, the control device 03 obtains the second flatness data of the bottom surface of the battery housing to be assembled.

[0094] In this embodiment, the first camera 012 and the second camera 022 can use a high-precision 3D scanner to scan the bottom surface of the battery module and the bottom surface of the battery box to obtain detailed point cloud images, such as... Figure 3 As shown, the point cloud data in the point cloud image contains the shape and position information of the bottom surface of the battery box / bottom surface of the battery module. The point cloud data of the bottom surface of the battery box to be assembled and the bottom surface of the battery module to be assembled can be used for flatness simulation, which helps to accurately calculate the ideal adhesive coating data between the two bottom surfaces. In this embodiment, a laser scanner, structured light scanner, etc., can be used as the first camera 012 and the second camera 022.

[0095] Step S03: Calculate the adhesive application data between the bottom surface of the module and the bottom surface of the housing based on the first flatness data and the second flatness data.

[0096] Understandably, it is possible to generate appropriate adhesive data based on the actual conditions of the battery box and battery module to be assembled, thereby ensuring the bonding quality between the battery module and the battery box.

[0097] Step S03 of the embodiment of this application (refer to) Figure 4 This may further include sub-steps S031-S032:

[0098] Sub-step S031: Fit the first flatness data and the second flatness data to obtain the spatial fitting result;

[0099] Sub-step S032: Obtain the adhesive application trajectory and adhesive application amount between the bottom surface of the module and the bottom surface of the box based on the spatial fitting results.

[0100] Specifically, in this embodiment, professional point cloud processing software (such as Halcon, PCL, etc.) can be used to preprocess the acquired 3D point cloud images, including preprocessing operations such as filtering, denoising, alignment, and segmentation of the point clouds in the 3D point cloud images. After the point cloud images are preprocessed, a plane fitting algorithm is used to perform plane fitting on the point clouds on the bottom surface of the module and the bottom surface of the box, respectively. The purpose of plane fitting is to find an optimal plane that minimizes the sum of the distances from the plane to all point clouds.

[0101] After performing planar fitting on the point cloud images of the module bottom surface and the battery box bottom surface respectively, it may be necessary to align the point cloud data of the battery module bottom surface with the point cloud data of the battery box bottom surface to ensure that they are in the same coordinate system. This usually involves transformation operations such as rotation and translation. Finally, flatness simulation is performed based on the first and second flatness data, i.e., spatial fitting, to generate a spatial fitting result; specifically, the spatial fitting result can generate a holistic spatial fitting model. The spatial fitting model includes factors such as the relative positional relationship and dimensional tolerances between the battery module and the battery box. Based on the spatial fitting model, more accurate positioning and analysis of the adhesive application space can be achieved, thereby accurately calculating the adhesive application trajectory and amount between the module bottom surface and the box bottom surface.

[0102] Furthermore, the adhesive application component 023 in this embodiment is also configured to apply adhesive to the bottom surface of the housing according to the adhesive application data. The adhesive application device 02 calculates the optimal adhesive application data according to the bottom surface planar data of the battery module and the bottom surface planar data of the battery housing and automatically applies adhesive to the bottom surface of the housing. This can reduce adhesive overflow and avoid the phenomenon of delamination between the battery module and the battery housing due to insufficient adhesive. It also saves labor costs.

[0103] In addition, in some other embodiments, the method further includes: the control device 03 responding to an adhesive amount adjustment command to obtain a target adhesive amount; and the control device 03 controlling the adhesive application equipment to apply adhesive to the bottom surface of the casing according to the target adhesive amount. In this embodiment, relevant personnel in the battery assembly plant can also adjust the calculated adhesive amount appropriately through the control device 03 according to their needs, so that the adhesive application equipment can complete the adhesive application based on the target adhesive amount adjusted by the personnel, allowing the personnel to operate flexibly and conveniently.

[0104] Example 2

[0105] Based on the above embodiment one, the adhesive coating equipment 02 of this application embodiment, in its specific implementation, refers to... Figure 6 The adhesive application equipment 02 also includes a drive device 024, which is equipped with a robotic arm 025. The adhesive application component 023 and the second camera 022 are both mounted on the robotic arm 025.

[0106] The drive unit 024 is configured to drive the robotic arm 025 to move, thereby driving the second camera 022 to acquire images of the bottom surface of the battery box, and also to drive the glue application component 023 to apply glue to the bottom surface of the box according to the glue application data (glue trajectory and glue amount).

[0107] In a specific implementation, the driving device 024 can be an intelligent robot. For example, when the "intelligent robot" starts moving, it drives the second camera 022 to the preset marked point of the "battery box" to determine the location of the battery box. Based on the difference between the identified position and the preset or expected position, the "intelligent robot" will automatically perform data compensation on its horizontal, vertical and height dimensions in three-dimensional space. After compensation, the running trajectory of the "intelligent robot" is obtained. The "intelligent robot" runs and uses the "second camera 022" to scan the bottom surface of the battery box to obtain the point cloud image of the bottom surface of the box. The "control device 03" generates a "3D point cloud map of the bottom surface of the battery box" based on the "point cloud image of the bottom surface of the box" to obtain the "second flatness data of the bottom surface of the battery box". Then, the generated "second flatness data of the bottom surface of the battery box" is transmitted to the control device 03.

[0108] In this embodiment of the application, reference is made to Figure 7 Step S032 further includes steps A1 to A4:

[0109] Step A1: Control device 03 divides the bottom surface of the box into multiple sub-coating areas based on the spatial fitting results;

[0110] Step A2: Control device 03 calculates the inner contour parameters of each sub-coating area;

[0111] Step A3: Control device 03 obtains the moving speed and dispensing speed of adhesive applicator 02 based on the inner contour parameters of the sub-adhesive application area;

[0112] Step A4: Calculate the amount of adhesive applied between the bottom surface of the module and the bottom surface of the housing based on the moving speed and the dispensing speed.

[0113] The control device 03 performs spatial fitting on the two types of original flatness data based on the "original flatness data of the bottom surface of the battery module after cell assembly" and the "original flatness data of the bottom surface of the battery box" in the manner mentioned in Embodiment 1 above; in this embodiment, the adhesive coating trajectory is divided into multiple sub-adhesive coating areas, and the contour parameters within the sub-adhesive coating areas are calculated based on all the sub-adhesive coating areas.

[0114] Specifically, the control device 03 can be composed of multiple terminal devices, which may include "8-adhesive metering system", "10-adhesive quantity calculation controller", "PLC host computer", and "5-drive device (robot) controller". In specific implementation:

[0115] The “10-Glue Quantity Calculation Controller” obtains the “volume of glue to be applied to the glue surface of the sub-glue area” based on the “contour parameters within the sub-glue area”. It can calculate the moving speed and glue dispensing speed of the drive device 024 on the glue application trajectory and complete the calculation of the final glue application amount.

[0116] The "10-Glue Quantity Calculation Controller" matches the XYZ travel speed and position of the robotic arm 025 on the glue application trajectory based on the moving speed of the drive device 024 on the glue application trajectory.

[0117] The "10-Glue Quantity Calculation Controller" matches the glue dispensing speed of the glue application component 023 within the glue application trajectory based on the glue dispensing speed of the drive device 024.

[0118] The "10-Glue Quantity Calculation Controller" applies glue to the inner bottom surface of the battery box based on the moving speed and dispensing speed of the drive device 024 on the glue application trajectory.

[0119] The “10-Glue Quantity Calculation Controller” sends the “moving speed and dispensing speed of the drive device 024 on the glue application trajectory” to the “PLC host computer”. The “PLC host computer” transmits the “moving speed of the drive device 024 on the glue application trajectory” to the “drive device (robot) controller”. The “PLC host computer” transmits the “dispensing speed” to the “8-Glue Supply Metering System”.

[0120] The "drive device (robot) controller" and the "8-adhesive metering system" control the "drive device 024" and the "adhesive application assembly 02" to complete the adhesive application according to the predetermined parameters.

[0121] After the adhesive is applied, the quality of the adhesive can also be confirmed using the "second camera 022".

[0122] In this embodiment, the spatial fitting result is divided into multiple sub-coating regions, and then the inner contour parameters of the sub-coating regions are obtained. Based on the inner contour parameters of each sub-coating region, the appropriate moving speed and dispensing speed of the coating equipment are matched, and the optimal coating amount is calculated based on the appropriate moving speed and dispensing speed.

[0123] In addition, refer to Figure 8 The glue application system also includes a glue supply system 6, a glue transfer system 7, and a glue metering system 8;

[0124] The glue supply system 6 is connected to the glue transfer system 7 through the glue application system pipeline; the glue transfer system 7 is connected to the glue metering system 8.

[0125] The glue supply metering system 8 is connected to the glue application assembly 023 via a glue supply pipeline;

[0126] The control device is further configured to control the glue supply metering system to generate a corresponding amount of glue according to the glue application data, so that the glue supply metering system delivers the glue to the glue application assembly through the glue supply pipeline.

[0127] In the specific implementation, the glue's operating logic is as follows:

[0128] The glue supply system 6 delivers the barrelled glue to the glue coating system pipeline. The glue in the glue coating system pipeline is then delivered to the glue supply transfer system 7, where the glue is agitated and vacuumed to remove air bubbles. The glue is then delivered to the glue supply metering system 8 via a valve-cutting pump. The glue supply metering system 8 delivers a predetermined amount of glue to the glue supply pipeline, which then delivers it to the glue coating assembly 023 for application.

[0129] This application provides a complete glue supply and dispensing system. The glue supply metering system can accurately generate the glue amount corresponding to the glue application data and deliver it to the glue application assembly through the glue supply pipeline. The glue supply metering system can also switch the glue amount at any time according to changes in battery products, and the glue application of the box is highly flexible.

[0130] Example 3

[0131] Based on the above embodiment one, the truss mechanism of the module testing device 01 in this application embodiment further includes:

[0132] A first crossbeam 013 and a second crossbeam 014 are arranged parallel to each other in the first direction, and a moving mechanism 015 is arranged in the second direction, with a first camera 012 disposed on the moving mechanism; both the first crossbeam and the second crossbeam are provided with slide rails; the moving mechanism is located above the first crossbeam and the second crossbeam; the moving mechanism is provided with the first camera 012 and a rolling device 017.

[0133] The drive motor is also configured to drive the moving mechanism to move along the slide rails of the first crossbeam and the second crossbeam to drive the first camera 012 to capture images of the bottom surface of the battery module to be assembled in the first direction.

[0134] The drive motor is also configured to drive the rolling device 017 to drive the first camera 012 to capture images of the bottom surface of the battery module to be assembled in the second direction.

[0135] In a specific implementation, the rolling device 017 can be a track mechanism, and the drive motor controls the track to drive the first camera 012 to move in the second direction in order to collect image data of the bottom surface of the battery module to be assembled.

[0136] The "moving mechanism 015" and the "rolling device 017 (track mechanism)" move synchronously, driving the "first camera 012" to the preset mark point of the "battery module" to determine the position of the module. The "moving mechanism 015" and the "rolling device 017 (track mechanism)" are compensated in two directional dimensions, the first direction and the second direction, and the running trajectory of the "moving mechanism 015" and the "rolling device 017" is obtained after compensation. The "moving mechanism 015" and the "rolling device 017" run, and the "first camera 012" scans the bottom surface of the battery module after the battery cells are assembled to obtain the point cloud image of the bottom surface of the module. The "first camera 012" generates a 3D point cloud map based on the "point cloud image of the bottom surface of the module" to obtain the "first flatness data of the bottom surface of the battery module". Then the generated "first flatness data of the bottom surface of the battery module" is transmitted to the control device 03.

[0137] In a specific implementation, the driving device 024 can be an intelligent robot. For example, when the "intelligent robot" starts to move, it drives the second camera 022 to the preset marked point of the "battery box" to determine the location of the battery box. Based on the difference between the identified position and the preset or expected position, the "intelligent robot" will automatically perform data compensation on the horizontal, vertical and height dimensions in three-dimensional space. After compensation, the running trajectory of the "intelligent robot" is obtained. The "intelligent robot" runs and uses the "second camera 022" to scan the bottom surface of the battery box to obtain the point cloud image of the bottom surface of the box. The "control device 03" generates a "3D point cloud map of the bottom surface of the battery box" based on the "point cloud image of the bottom surface of the box" to obtain the "first flatness data of the bottom surface of the battery box".

[0138] In this embodiment, after the module testing equipment fixes the battery module to be assembled, the truss mechanism drives the first camera to acquire images of the bottom surface of the battery module in two directions, resulting in more detailed image data of the bottom surface. A drive motor drives a moving mechanism to scan the bottom surface image of the module above the battery module along a first direction, while simultaneously driving a rolling device moving mechanism to scan the bottom surface image of the module above the battery module in a second direction, enabling more comprehensive acquisition of point cloud images of the module's bottom surface.

[0139] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0140] This application also provides a storage medium, which is a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the steps in the above-described method embodiments.

[0141] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to a photographing device / terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0142] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0143] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A method for applying adhesive to a battery casing, characterized in that, include: Obtain the first flatness data of the bottom surface of the battery module to be assembled; Obtain the second flatness data of the bottom surface of the battery box to be assembled; Based on the first flatness data and the second flatness data, the adhesive application data between the bottom surface of the module and the bottom surface of the housing is calculated.

2. The method as described in claim 1, characterized in that, The method further includes: The adhesive application equipment is controlled to apply adhesive to the bottom surface of the box according to the adhesive application data.

3. The method as described in claim 1 or 2, characterized in that, The step of obtaining the first flatness data of the bottom surface of the battery module to be assembled includes: Collect point cloud images of the bottom surface of the battery module to be assembled; Based on the point cloud image of the bottom surface of the module, the first flatness data is obtained; The process of obtaining the second flatness data of the bottom surface of the battery box to be assembled includes: Collect point cloud images of the bottom surface of the battery box to be assembled; Based on the point cloud image of the bottom surface of the box, the second flatness data is obtained.

4. The method according to any one of claims 1 to 3, characterized in that, The calculation of adhesive application data between the bottom surface of the module and the bottom surface of the housing based on the first flatness data and the second flatness data includes: The first flatness data and the second flatness data are fitted together to obtain the spatial fitting result; The adhesive application trajectory and amount between the bottom surface of the module and the bottom surface of the box are obtained based on the spatial fitting results.

5. The method as described in claim 4, characterized in that, The step of obtaining the adhesive application trajectory and adhesive application amount between the bottom surface of the module and the bottom surface of the box based on the spatial fitting result includes: Based on the spatial fitting results, the bottom surface of the box is divided into multiple sub-coating areas; Calculate the inner contour parameters of each of the sub-coating regions; The moving speed and dispensing speed of the adhesive coating equipment are obtained based on the inner contour parameters of the sub-coating area. The amount of adhesive applied between the bottom surface of the module and the bottom surface of the housing is calculated based on the moving speed and the dispensing speed.

6. The method according to any one of claims 1 to 5, characterized in that, The method further includes: In response to the glue amount adjustment command for the glue application amount, the target glue amount is obtained; The adhesive application equipment is controlled to apply adhesive to the bottom surface of the box according to the target amount of adhesive.

7. A coating system for a battery casing, characterized in that, The system includes a module testing device, a coating device, and a control device; the control device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method as described in any one of claims 1 to 6; The adhesive application equipment is configured to acquire image resolution data of the bottom surface of the battery box to be assembled. The module testing equipment is configured to acquire image data of the bottom surface of the battery module to be assembled.

8. The adhesive application system as claimed in claim 7, characterized in that, The module testing equipment includes a truss mechanism, a drive motor, and a first positioning mechanism; a first camera is mounted on the truss mechanism. The first positioning mechanism is configured to mechanically fix the battery module to be assembled; The drive motor is configured to drive the truss mechanism to move the first camera in a first direction and a second direction and to capture images of the bottom surface of the battery module to be assembled. The second direction is perpendicular to the first direction.

9. The adhesive application system as claimed in claim 8, characterized in that, The truss mechanism includes a first crossbeam and a second crossbeam arranged parallel to each other in the first direction, and a moving mechanism arranged in the second direction, wherein the first camera is mounted on the moving mechanism; both the first crossbeam and the second crossbeam are provided with slide rails; the moving mechanism is located above the first crossbeam and the second crossbeam; the moving mechanism is provided with the first camera and a rolling device. The drive motor is also configured to drive the moving mechanism to move along the slide rails of the first crossbeam and the second crossbeam, so as to drive the first camera to capture images of the bottom surface of the battery module to be assembled in the first direction. The drive motor is also configured to drive the rolling device to drive the first camera to capture images of the bottom surface of the battery module to be assembled in the second direction.

10. The adhesive application system according to any one of claims 7 to 9, characterized in that, The adhesive application equipment includes a second camera, an adhesive application assembly, and a second positioning mechanism; The second positioning mechanism is configured to mechanically position the battery box to be assembled; The second camera is configured to acquire image resolution data of the bottom surface of the battery box to be assembled; The adhesive application component is configured to apply adhesive to the bottom surface of the housing according to adhesive application data, which is generated based on the image resolution data of the bottom surface of the housing and the image resolution data of the bottom surface of the module.

11. The adhesive application system as claimed in claim 10, characterized in that, The adhesive coating equipment also includes a drive unit, which is equipped with a robotic arm. The adhesive coating component and the second camera are both mounted on the robotic arm. The drive device is configured to drive the robotic arm to move, thereby driving the second camera to capture images of the bottom surface of the battery box. The drive device is also configured to drive the robotic arm to move, thereby causing the adhesive application assembly to apply adhesive to the bottom surface of the box according to the adhesive application data.

12. The adhesive application system as claimed in claim 10 or 11, characterized in that, The adhesive application system also includes an adhesive metering system, which is connected to the adhesive application assembly via an adhesive supply pipeline. The control device is further configured to control the glue supply metering system to generate a corresponding amount of glue according to the glue application data, so that the glue supply metering system delivers the glue to the glue application assembly through the glue supply pipeline.

13. A storage medium, said storage medium being a computer-readable storage medium, said computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1 to 6.

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