Multifunctional battery cell comprehensive detection and processing integrated equipment

Abstract

The invention discloses multifunctional battery cell comprehensive detection and treatment integrated equipment, and aims to realize full-process automatic treatment of a battery cell from electrical performance test to internal defect detection. The equipment comprises a lead plate shell, a multifunctional battery cell detection module and a battery cell Xray detection and sorting module. The multifunctional module completes IV / OCV testing, tab shaping, cutting and size measurement in sequence through the first rotating disc mechanism, and it is ensured that the physical and electrical performance of a battery cell reaches the standard; and the Xray module carries the double Xray detection mechanisms through the second rotary table mechanism, penetrating imaging is conducted on key areas at the head and the tail of the battery cell, and high-speed sorting of good products and defective products is achieved in combination with the double-head rotary discharging mechanical arm and the NG sorting four-axis mechanical arm. The multi-shielding design of the lead plate shell and the NG sorting frame ensures radiation safety, and the modular structure supports compatibility of multi-specification battery cells. Through cooperative control of the turntable, the robot and the sensor, the detection efficiency and precision are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of battery cell processing and testing equipment, and particularly to a multi-functional integrated equipment for comprehensive detection and processing of battery cells. Background Art

[0002] With the rapid development of new energy technologies, battery cells such as lithium batteries and lead-acid batteries, as the core components of energy storage and power systems, their performance and quality directly affect the safety and reliability of end products. During the production process of battery cells, they need to undergo inspections and treatments in multiple processes to ensure that their electrical performance, dimensional accuracy, and internal structure meet the design requirements. Traditional battery cell detection and processing equipment usually adopts a decentralized operation mode, that is, different detection processes are completed by independent equipment. This mode is not only inefficient but also prone to a decrease in detection accuracy and an increase in production costs due to connection problems between equipment.

[0003] Currently, battery cell detection technologies mainly include electrical performance tests (such as IV tests, OCV tests), dimensional measurements, tab welding and trimming, and internal structure detection (such as X-ray detection), etc. However, there is a lack of equipment in the prior art that can integrate multiple detection functions into one, resulting in the need for multiple transfers and positioning of battery cells on the production line, increasing the production cycle and the risk of manual intervention. In addition, non-destructive detection of the internal structure of battery cells (such as X-ray detection) usually needs to be carried out on independent equipment and cannot be seamlessly connected with other detection processes, further reducing production efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a multi-functional integrated equipment for comprehensive detection and processing of battery cells, which can integrate functions such as electrical performance testing, dimensional measurement, tab welding and trimming, and X-ray detection of battery cells into the same equipment, realizing efficient and accurate detection and processing of battery cells.

[0005] To achieve the above purpose, this application provides the following technical solutions:

[0006] A multi-functional integrated equipment for comprehensive detection and processing of battery cells includes a lead plate housing, a multi-functional battery cell detection module, and a battery cell X-ray detection and sorting module. The multi-functional battery cell detection module is connected to the battery cell X-ray detection and sorting module and is arranged inside the lead plate housing;

[0007] The multi-functional battery cell detection module includes a first feeding mechanism, a loading robot, a first turntable mechanism, an IV test mechanism, an OCV test mechanism, a first tab welding mechanism, a second tab welding mechanism, a tab trimming mechanism, a battery cell thickness and dimensional measurement mechanism, an unloading robot, and a first discharging belt;

[0008] The first feeding mechanism is used to convey the battery cells to the loading robot; the loading robot is arranged on one side of the first turntable mechanism and is used to transfer the battery cells on the first feeding mechanism into the first turntable mechanism; the IV testing mechanism, OCV testing mechanism, first tab shaping mechanism, second tab shaping mechanism, and tab cutting mechanism are sequentially arranged around the first turntable mechanism to perform IV testing, OCV testing, tab shaping, and tab cutting on the battery cells in sequence; the unloading robot is arranged on one side of the battery cell thickness and dimension measuring mechanism and is used to transfer the battery cells after tab cutting from the turntable mechanism to the battery cell thickness and dimension measuring mechanism for thickness and dimension measurement; the unloading robot can place the battery cells after thickness and dimension measurement onto the first discharging conveyor belt; the first discharging conveyor belt feeds the battery cells into the battery cell X-ray detection and sorting module;

[0009] The battery cell X-ray detection and sorting module includes a loading four-axis manipulator, a second turntable mechanism, a first X-ray detection mechanism, a second X-ray detection mechanism, a double-head rotating discharging manipulator, a second discharging conveyor belt, an NG sorting four-axis manipulator, and an NG sorting box;

[0010] The loading four-axis manipulator is arranged on one side of the second turntable mechanism. The loading four-axis manipulator is used to transfer the battery cells on the first discharging conveyor belt onto the second turntable mechanism. The first X-ray detection mechanism, the second X-ray detection mechanism, and the double-head rotating discharging manipulator are sequentially arranged around the second turntable mechanism. The first X-ray detection mechanism is used to detect whether there are defects inside the two corners of the head of the battery cell, and the second X-ray detection mechanism is used to detect whether there are defects inside the two corners of the tail of the battery cell. The double-head rotating discharging manipulator is used to transfer the battery cells onto the second discharging conveyor belt. The NG sorting four-axis manipulator transfers the defective battery cells into the NG sorting box, and the good products are discharged through the second discharging conveyor belt.

[0011] Further, the first feeding mechanism includes a first feeding conveyor belt, a first feeding barcode scanning device, a first CCD positioning device, and a color mark sensor. The first feeding barcode scanning device is arranged on one side of the first feeding conveyor belt and is used to obtain the barcode information on the surface of the battery cell. The color mark sensor is arranged on the other side of the first feeding conveyor belt and is used to sense the battery cell and trigger the first CCD positioning device to take a photo to obtain the position of the battery cell.

[0012] Further, the first tab shaping mechanism includes a first longitudinal tab flattening device, a first transverse tab flattening device, and a first tab shaping support device. The first longitudinal tab flattening device is arranged above the first tab shaping support device. The first tab shaping support device is used to support the bottom of the tab. The first longitudinal tab flattening device is used to flatten the surface of the tab in the longitudinal direction. The first transverse tab flattening device is arranged on one side of the first longitudinal tab flattening device and is used to flatten the tab in the transverse direction.

[0013] Further, the cell thickness and size measurement mechanism includes a transfer module, a CCD size measurement mechanism, and a PPG measurement mechanism. There are 2 groups of PPG measurement mechanisms, which are respectively installed near both ends of the transfer module. The CCD size measurement mechanism is arranged on one side of the middle of the transfer module. There are 2 groups of transfer carriers on the transfer module. The transfer carriers are used to drive the cell to the CCD size measurement mechanism for size measurement and to the PPG measurement mechanism for thickness measurement.

[0014] Further, a first lead plate protective cover is arranged near the cell X-ray detection and sorting module on the first discharge pull belt. The first lead plate protective cover is used to prevent the X-rays of the cell X-ray detection and sorting module from leaking into the multi-functional cell detection module.

[0015] Further, a moving adsorption carrier and a carrier translation module are arranged on the second turntable mechanism. The moving adsorption carrier is installed on the carrier translation module. The carrier translation module is used to drive the moving adsorption carrier to drive the cell to move outwards.

[0016] Further, a carbon fiber bottom plate is arranged on the moving adsorption carrier. A sponge is arranged on the carbon fiber bottom plate. The sponge is connected with a gas guide plate. The gas guide plate is connected with an air extraction device. The air extraction device adsorbs and fixes the cell on the carbon fiber bottom plate through the gas guide plate and the sponge.

[0017] Further, the first X-ray detection mechanism includes a flat panel detector, a flat panel lifting drive device, an X-ray emitter, an X-ray emitter lifting drive device, and an X-ray emitter translation drive device. The flat panel detector and the X-ray emitter are arranged opposite to each other up and down. The flat panel detector is installed on the flat panel lifting drive device. The flat panel lifting drive device is used to drive the flat panel detector to perform lifting movement. The X-ray emitter is installed on the X-ray emitter lifting drive device. The X-ray emitter lifting drive device is installed on the X-ray emitter translation drive device. The X-ray emitter translation drive device is used to drive the X-ray emitter to perform lateral movement. The X-ray emitter lifting drive device is used to drive the X-ray emitter to perform lifting movement.

[0018] Further, the NG sorting box includes a mounting frame, a drawer box, sorting drawers, and a moving shielding cover plate. The drawer box is installed on the mounting frame. The upper end of the drawer box is an open end. There are multiple sorting drawers, which are arranged side by side in the drawer box. The moving shielding cover plate is movably arranged on the open end of the drawer box. When one of the sorting drawers needs to leave the drawer box, the moving shielding cover plate first moves above the sorting drawer and covers the upper part of the sorting drawer.

[0019] Furthermore, the four sides and the bottom of the drawer box are enclosed by lead plates.

[0020] The beneficial effects of the present application are as follows:

[0021] The multifunctional integrated equipment for cell comprehensive detection and processing provided by the present application integrates the multifunctional cell detection module and the cell X-ray detection and sorting module in a lead plate housing, realizing the full-process automatic processing of cells from electrical performance testing (IV testing, OCV testing), tab forming and cutting, size measurement to internal structure X-ray detection. This equipment has the following remarkable advantages: Through the collaborative operation of the first turntable mechanism and the second turntable mechanism, the present application completes various detection processes of cells in one equipment, reducing the number of transfers of cells between different equipments and significantly improving the production efficiency. The combination of the IV testing mechanism, OCV testing mechanism, cell thickness and size measurement mechanism and the dual X-ray detection mechanism in the present application ensures that the electrical performance, size accuracy and internal structure of the cells are comprehensively and accurately detected, effectively reducing the defective rate. Through the automatic operations of the loading robot, unloading robot, loading four-axis manipulator and double-head rotating discharging manipulator in the present application, the manual intervention is reduced, and the consistency and reliability of production are improved. The cooperation between the NG sorting four-axis manipulator and the NG sorting box in the present application can quickly and accurately separate defective products, ensuring that good products are efficiently discharged through the second discharging belt, further improving the overall quality control level of the production line. The design of the lead plate housing in the present application effectively shields the radiation generated during the X-ray detection process, ensuring the safety of operators.

[0022] In summary, through the highly integrated, automated and precise design, the present equipment significantly improves the efficiency, accuracy and safety of cell detection and processing, and is applicable to the high-standard requirements of large-scale cell production. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the multifunctional integrated equipment for cell comprehensive detection and processing provided by an embodiment of the present application;

[0024] Figure 2 It is a top view of the multifunctional integrated equipment for cell comprehensive detection and processing provided by an embodiment of the present application after hiding the lead plate housing;

[0025] Figure 3 It is a top view of the multifunctional cell detection module provided by an embodiment of the present application;

[0026] Figure 4 It is a top view of the cell X-ray detection and sorting module provided by an embodiment of the present application;

[0027] Figure 5Schematic diagram of the first feeding mechanism provided by an embodiment of the present application;

[0028] Figure 6 Schematic diagram of the first tab shaping mechanism provided by an embodiment of the present application;

[0029] Figure 7 Schematic diagram of the first tab shaping mechanism from another perspective provided by an embodiment of the present application;

[0030] Figure 8 Schematic diagram of the cell thickness measurement and size measurement mechanism provided by an embodiment of the present application;

[0031] Figure 9 Schematic diagram of the second turntable mechanism provided by an embodiment of the present application;

[0032] Figure 10 Schematic diagram of the mobile adsorption carrier provided by an embodiment of the present application;

[0033] Figure 11 Schematic diagram of the first X-ray detection mechanism provided by an embodiment of the present application;

[0034] Figure 12 Schematic diagram of the first X-ray detection mechanism from another perspective provided by an embodiment of the present application;

[0035] Figure 13 Schematic diagram of the NG sorting box provided by an embodiment of the present application;

[0036] Figure 14 Schematic diagram of the NG sorting box from another perspective provided by an embodiment of the present application;

[0037] Figure 15 Schematic diagram of the double-headed rotary discharging manipulator provided by an embodiment of the present application;

[0038] Explanation of reference numerals:

[0039] A, multi-functional cell detection module; B, cell X-ray detection and sorting module; C, lead plate housing;

[0040] A1, the first feeding mechanism; A2, loading robot; A3, the first turntable mechanism; A4, IV test mechanism; A5, OCV test mechanism; A6, the first tab shaping mechanism; A7, the second tab shaping mechanism; A8, tab cutting mechanism; A9, cell thickness measurement and size measurement mechanism; A10, unloading robot; A11, the first discharging belt; A12, the first lead plate protective cover;

[0041] B1. Four-axis loading manipulator; B2. Second turntable mechanism; B3. First X-ray detection mechanism; B4. Second X-ray detection mechanism; B5. Double-headed rotary discharging manipulator; B6. Second discharging belt; B7. NG sorting four-axis manipulator; B8. NG sorting box;

[0042] A11. First feeding belt; A12. First feeding code scanning device; A13. First CCD positioning device; A14. Color mark sensor; A15. NG discharging box; A16. Loading buffer table;

[0043] A61. First longitudinal tab flattening device; A62. First transverse tab flattening device; A63. First tab shaping support device;

[0044] A611. First longitudinal shaping roller; A612. First shaping roller lifting module; A613. First shaping roller forward and backward movement module;

[0045] A621. First transverse shaping roller; A622. First transverse shaping roller lifting cylinder;

[0046] A631. First tab shaping support seat; A632. First support seat lifting drive module;

[0047] A91. Transfer module; A92. CCD size measurement mechanism; A93. PPG measurement mechanism; A94. Transfer carrier; A95. Cell suction cup platform;

[0048] B21. Mobile adsorption carrier; B22. Carrier translation module; B23. Carbon fiber bottom plate; B24. Sponge; B25. Air guide plate; B26. Limit strip;

[0049] B31. Flat panel detector; B32. Flat panel lifting drive device; B33. X-ray emitter; B34. X-ray emitter lifting drive device; B35. X-ray emitter translation drive device;

[0050] B81. Mounting frame; B82. Drawer box; B83. Sorting drawer; B84. Mobile shielding cover plate; B85. Drawer self-locking cylinder; B86. Partition board; B87. Avoidance groove; B88. Full material inductor; B89. Discharging inductor; Detailed implementation mode

[0051] Aspects and exemplary embodiments of the present application will be described in detail below. In order to make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the present application will be further described in detail below in combination with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0053] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "above" or "over" another layer or another region, it may mean directly above the other layer or another region, or there may be other layers or regions between it and the other layer or another region. And if the component is flipped, this layer or region will be "below" or "under" the other layer or region.

[0054] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0055] In the following embodiments, Xray is involved. The so-called Xray refers to X-ray, also known as Roentgen ray. X-ray is an electromagnetic wave with an extremely short wavelength and high energy, having strong penetration ability. It can penetrate many opaque materials (such as metals, plastics, human tissues, etc.), and different absorption effects are produced during the penetration process due to the differences in the density and thickness of the materials. Based on this characteristic, X-ray is widely used in fields such as medical imaging, industrial non-destructive testing, and material analysis. In this embodiment, Xray detection refers to the technology of using X-ray to perform non-destructive testing on the internal structure of the battery cell. By irradiating the battery cell with X-ray, the distribution and state of the internal structures such as electrodes, separators, and tabs of the battery cell can be clearly observed, so as to judge whether there are internal defects in the battery cell (such as tab misalignment, electrode deformation, foreign matter inclusion, etc.).

[0056] In the following embodiments, IV test is involved. The so-called IV test refers to the Current-Voltage Test of the battery cell (or battery), abbreviated as IV test. This is a test method for evaluating the electrical performance of the battery cell by measuring the voltage response of the battery cell under different current conditions. In this embodiment, the IV test mechanism A4 is an important part of the multi-functional battery cell detection module A, and is used for the preliminary detection of the electrical performance of the battery cell. Through the IV test, the battery cells with unqualified electrical performance (such as too high internal resistance, insufficient capacity, etc.) can be quickly screened out, so as to ensure that the battery cells processed in the subsequent processes (such as tab shaping, Xray detection, etc.) meet the basic electrical performance requirements.

[0057] In the following embodiments, OCV test is involved. The so-called OCV test refers to the Open Circuit Voltage Test, abbreviated as OCV test. This is a basic test method for evaluating the electrical performance and state of the battery cell by measuring the voltage of the battery cell in the no-load state (i.e., open circuit state). In this embodiment, the OCV test mechanism A5 is an important part of the multi-functional battery cell detection module A, and is used for detecting the open circuit voltage of the battery cell. Through the OCV test, the battery cells with abnormal voltages (such as too high, too low or unstable voltages) can be quickly screened out, so as to ensure that the battery cells processed in the subsequent processes (such as tab shaping, IV test, Xray detection, etc.) meet the basic voltage requirements.

[0058] As Figure 1 and Figure 2 shown, this application proposes a multi-functional integrated device Q for comprehensive detection and processing of battery cells, including a lead plate housing C, a multi-functional battery cell detection module A, and a battery cell Xray detection and sorting module B. The multi-functional battery cell detection module A is connected to the battery cell Xray detection and sorting module B and is arranged inside the lead plate housing C;

[0059] As Figure 3As shown, the multi-functional battery cell detection module A includes a first feeding mechanism A1, a loading robot A2, a first turntable mechanism A3, an IV test mechanism A4, an OCV test mechanism A5, a first tab shaping mechanism A6, a second tab shaping mechanism A7, a tab cutting mechanism A8, a battery cell thickness and dimension measurement mechanism A9, a discharging robot A10, and a first discharging belt A11;

[0060] The first feeding mechanism A1 is used to convey the battery cell W to the loading robot A2; the loading robot A2 is arranged on one side of the first turntable mechanism A3 and is used to transfer the battery cell on the first feeding mechanism A1 into the first turntable mechanism A3; the IV test mechanism A4, the OCV test mechanism A5, the first tab shaping mechanism A6, the second tab shaping mechanism A7, and the tab cutting mechanism A8 are sequentially arranged around the first turntable mechanism A3 to perform IV test, OCV test, tab shaping, and tab cutting on the battery cell in sequence; the discharging robot A10 is arranged on one side of the battery cell thickness and dimension measurement mechanism A9 and is used to transfer the battery cell after tab cutting from the turntable mechanism to the battery cell thickness and dimension measurement mechanism A9 for thickness and dimension measurement; the discharging robot A10 can place the battery cell after thickness and dimension measurement onto the first discharging belt A11; the first discharging belt A11 sends the battery cell into the battery cell X-ray detection and sorting module B;

[0061] As Figure 4 As shown, the battery cell X-ray detection and sorting module B includes a loading four-axis manipulator B1, a second turntable mechanism B2, a first X-ray detection mechanism B3, a second X-ray detection mechanism B4, a double-headed rotating discharging manipulator B5, a second discharging belt B6, an NG sorting four-axis manipulator B7, and an NG sorting box B8;

[0062] The loading four-axis manipulator B1 is arranged on one side of the second turntable mechanism B2. The loading four-axis manipulator B1 is used to transfer the battery cell on the first discharging belt A11 to the second turntable mechanism B2. The first X-ray detection mechanism B3, the second X-ray detection mechanism B4, and the double-headed rotating discharging manipulator B5 are sequentially arranged around the second turntable mechanism B2. The first X-ray detection mechanism B3 is used to detect whether there are defects inside the two corners of the head of the battery cell, and the second X-ray detection mechanism B4 is used to detect whether there are defects inside the two corners of the tail of the battery cell. The double-headed rotating discharging manipulator B5 is used to transfer the battery cell to the second discharging belt B6. The NG sorting four-axis manipulator B7 transfers the defective battery cells to the NG sorting box B8, and the good products are discharged through the second discharging belt B6.

[0063] The working principle of this application is:

[0064] The battery cell is conveyed into the equipment through the first feeding mechanism A1, and the loading robot A2 transfers the battery cell onto the first turntable mechanism A3; on the first turntable mechanism A3, the battery cell sequentially passes through the IV testing mechanism A4 and the OCV testing mechanism A5 to respectively conduct current-voltage characteristic testing and open-circuit voltage testing to evaluate the electrical performance of the battery cell;

[0065] Subsequently, the battery cell enters the first tab shaping mechanism A6 and the second tab shaping mechanism A7 to shape the tabs; after shaping, the tab cutting mechanism A8 cuts the tabs to ensure that the size and shape of the tabs meet the requirements; the cut battery cell is transferred by the unloading robot A10 to the battery cell thickness and dimension measurement mechanism A9 for precise measurement of thickness and dimensions;

[0066] After measurement, the battery cell is placed on the first discharging conveyor belt A11 and conveyed by the first discharging conveyor belt A11 to the battery cell X-ray detection and sorting module B;

[0067] The loading four-axis manipulator B1 transfers the battery cell from the first discharging conveyor belt A11 onto the second turntable mechanism B2; the battery cell sequentially passes through the first X-ray detection mechanism B3 and the second X-ray detection mechanism B4 to respectively conduct X-ray detection on the internal structures of the head and tail of the battery cell to determine whether there are internal defects; after detection, the double-head rotary discharging manipulator B5 transfers the battery cell onto the second discharging conveyor belt B6; the NG sorting four-axis manipulator B7 transfers the detected defective battery cells (NG products) into the NG sorting box B8, while the qualified products are output through the second discharging conveyor belt B6.

[0068] Through the collaborative work of the multifunctional battery cell detection module A and the battery cell X-ray detection and sorting module B in this application, the full-process automated processing of the battery cell from electrical performance testing, tab processing, dimension measurement to internal structure X-ray detection is realized. The equipment adopts automated devices such as turntable mechanisms, robots, and manipulators to ensure the efficient and precise transfer and detection of the battery cell between various processes, and finally realizes the automatic sorting of qualified products and defective products, significantly improving the efficiency and quality of battery cell detection and processing.

[0069] The IV testing mechanism A4, OCV testing mechanism A5, second tab shaping mechanism A7, and tab cutting mechanism A8 adopted in this embodiment can refer to the structures disclosed in the prior art such as patent CN118665995A.

[0070] Such as Figure 5As shown, in one embodiment, the first feeding mechanism A1 includes a first feeding belt A11, a first feeding barcode scanning device A12, a first CCD positioning device A13, and a color mark sensor A14. The first feeding barcode scanning device A12 is disposed on one side of the first feeding belt A11 and is used to obtain the barcode information on the surface of the battery cell. The color mark sensor A14 is disposed on the other side of the first feeding belt A11 and is used to sense the battery cell and trigger the first CCD positioning device A13 to take a picture to obtain the position of the battery cell W.

[0071] In this embodiment, through the collaborative work of the first feeding belt A11, the first feeding barcode scanning device A12, the first CCD positioning device A13, and the color mark sensor A14, the automated processing of battery cell feeding, barcode scanning, positioning, and correction is realized. The first feeding barcode scanning device A12 obtains the barcode information of the battery cell, which is convenient for data tracking. The color mark sensor A14 senses the battery cell and triggers the first CCD positioning device A13 to take a picture, accurately obtaining the position of the battery cell and ensuring the accurate positioning of subsequent processes. This design improves the positioning accuracy and production efficiency of the battery cell, reduces manual intervention and error rate, and at the same time enhances the production transparency and traceability, providing a reliable basis for subsequent inspection and processing procedures.

[0072] The color mark sensor A14 in this embodiment senses the position of the battery cell by detecting the change in the light intensity of the color mark or marked area on the surface of the battery cell, and triggers the first CCD positioning device A13 to take a picture when the battery cell reaches the predetermined position. This design realizes the real-time detection and accurate correction of the battery cell position, providing a reliable guarantee for the high-precision processing of subsequent processes.

[0073] As Figure 3 shown, an NG discharging box A15 and a loading buffer table A16 are disposed on one side of the first feeding mechanism A1. The loading robot A2 takes two battery cells from the belt respectively, moves to the turntable, and puts down two battery cells at the same time. If there is an NG battery cell, the loading robot A2 places the battery cell into the NG box. If one of them is an OK product, the OK product battery cell is placed on the buffer platform. The NG discharging box is used to temporarily store the battery cells with failed barcode scanning or positioning (such as damaged barcodes). When the loading robot A2 grabs an OK battery cell and an NG battery cell, the loading buffer table A16 is used to buffer the OK battery cell, and the loading manipulator then puts the NG battery cell into the NG discharging box A15.

[0074] As Figure 6 and Figure 7As shown, in one embodiment, the first tab shaping mechanism A6 includes a first longitudinal tab flattening device A61, a first transverse tab flattening device A62, and a first tab shaping support device A63. The first longitudinal tab flattening device A61 is disposed above the first tab shaping support device A63. The first tab shaping support device A63 is used to support the bottom of the tab. The first longitudinal tab flattening device A61 is used to flatten the tab surface in the longitudinal direction. The first transverse tab flattening device A62 is disposed on one side of the first longitudinal tab flattening device A61 and is used to flatten the tab in the transverse direction. In this embodiment, the first longitudinal tab flattening device A61 flattens the tab surface in the longitudinal direction, and the first transverse tab flattening device A62 flattens the tab in the transverse direction. The two work together to be able to perform all-round shaping on the tab, ensuring that the tab surface is flat and free of wrinkles.

[0075] In one embodiment, the first longitudinal tab flattening device A61 includes a first longitudinal shaping roller A611, a first shaping roller lifting module A612, and a first shaping roller forward and backward movement module A613. The first longitudinal shaping roller A611 is installed on the first shaping roller lifting module A612. The first shaping roller lifting module A612 is installed on the first shaping roller forward and backward movement module A613. The first shaping roller lifting module A612 is used to drive the first longitudinal shaping roller to perform a lifting movement. The first shaping roller forward and backward movement module A613 is used to drive the first longitudinal shaping roller A611 to perform a forward and backward movement.

[0076] In one embodiment, the first transverse tab flattening device A62 includes a first transverse shaping roller A621 and a first transverse shaping roller lifting cylinder A622. The first transverse shaping roller A621 is installed on the first transverse shaping roller lifting cylinder A622. The first transverse shaping roller lifting cylinder A622 is used to drive the first transverse shaping roller A621 to perform a lifting movement.

[0077] In one embodiment, the first tab shaping support device A63 includes a first tab shaping support base A631 and a first support base lifting drive module A632. The first tab shaping support base A631 is installed on the first support base lifting drive module A632. The first support base lifting drive module A632 is used to drive the first tab shaping support base A631 to perform a lifting movement.

[0078] In the following embodiments, PPG measurement is involved. The so-called PPG measurement refers to a technique for measuring the thickness of the battery cell using a constant force micrometer. The constant force micrometer measures the thickness of the battery cell by mechanically contacting the surface of the battery cell with a constant pressure.

[0079] As Figure 8As shown, in one embodiment, the cell thickness and size measurement mechanism A9 includes a transfer module A91, a CCD size measurement mechanism A92, and a PPG measurement mechanism A93. There are 2 sets of PPG measurement mechanisms A93, which are respectively installed near both ends of the transfer module A91. The CCD size measurement mechanism A92 is arranged on one side of the middle of the transfer module A91. There are 2 sets of transfer carriers A94 on the transfer module A91. The transfer carriers A94 are used to drive the cell to the CCD size measurement mechanism A92 for size measurement and to the PPG measurement mechanism A93 for thickness measurement. Two sets of transfer carriers A94 are arranged on the transfer module A91, which can simultaneously drive the cell for size measurement and thickness measurement, significantly improving the measurement efficiency. The parallel working mode of the CCD size measurement mechanism A92 and the PPG measurement mechanism A93 reduces the waiting time of the cell in the measurement process.

[0080] In one embodiment, there are 2 sets of cell suction cup platforms A95 on each transfer carrier A94, and the cell suction cup platforms A95 are transparent platforms. The cell suction cup platforms A95 fix the cell by vacuum adsorption to ensure the stability of the cell during transportation and measurement, avoiding measurement errors caused by shaking or displacement. The transparent platform allows light to pass through. The transparent platform allows the light source to irradiate the cell from below through the platform, providing uniform and sufficient lighting conditions for the CCD camera.

[0081] As Figure 2 Shown, in one embodiment, a first lead plate protective cover A12 is provided near the cell X-ray detection and sorting module B of the first discharge belt A11. The first lead plate protective cover A12 is used to prevent the X-rays of the cell X-ray detection and sorting module B from leaking into the multi-functional cell detection module A. A lead plate is arranged inside the first lead plate protective cover A12. The lead plate is a high-density material and has extremely strong absorption and blocking capabilities for X-rays. The first lead plate protective cover A12 can completely isolate the X-rays generated by the X-ray detection and sorting module and prevent them from leaking into the multi-functional cell detection module A. This design ensures that the X-rays are only used for internal detection of the cell X-ray detection and sorting module B and will not cause radiation pollution to other modules. X-rays are a kind of high-energy electromagnetic wave. If they leak into the multi-functional cell detection module A, they will interfere with the electronic devices in the module (such as the IV test mechanism A4, OCV test mechanism A5, etc.), resulting in measurement errors or equipment failures. X-rays are a kind of ionizing radiation, and long-term exposure may cause harm to the health of operators (such as radiation damage or chronic diseases). The lead plate protective cover effectively reduces the risk of operators being exposed to the radiation environment by completely blocking X-rays and ensures the safety of the workplace.

[0082] As Figure 9As shown, in one embodiment, a moving adsorption carrier B21 and a carrier translation module B22 are provided on the second turntable mechanism B2. The moving adsorption carrier B21 is installed on the carrier translation module B22, and the carrier translation module B22 is used to drive the moving adsorption carrier B21 to drive the battery cell to move outwards.

[0083] As Figure 10 shown, in one embodiment, a carbon fiber bottom plate B23 is provided on the moving adsorption carrier B21. A sponge B24 is provided on the carbon fiber bottom plate B23. The sponge B24 is connected to a gas guide plate B25. The gas guide plate B25 is connected to an air extraction device (not shown in the figure). The air extraction device adsorbs and fixes the battery cell on the carbon fiber bottom plate B23 through the gas guide plate B25 and the sponge B24. The sponge B24 is connected to the air extraction device through the gas guide plate B25. When the air extraction device works, a negative pressure is formed inside the sponge B24, which can adsorb and fix the battery cell evenly and stably. The softness and elasticity of the sponge B24 enable it to closely fit the surface of the battery cell, ensuring that the battery cell will not be displaced or shaken during transportation. The traditional suction cup fixing method may leave suction cup marks on the surface of the battery cell, affecting the appearance and quality of the battery cell. The soft material and uniform adsorption force of the sponge B24 can avoid damage or indentation to the surface of the battery cell, which is especially suitable for battery cells with high surface quality requirements.

[0084] Carbon fiber is a low-density material with a very low absorption rate of X-rays and hardly affects the penetration of X-rays. During the X-ray detection process of the battery cell, the carbon fiber bottom plate B23 will not interfere with the X-ray imaging, ensuring the accuracy and clarity of the detection results.

[0085] In one embodiment, a limiting strip B26 is provided on one side of the carbon fiber bottom plate B23 for restricting the placement position of the battery cell.

[0086] As Figure 11 and Figure 12 shown, in one embodiment, the first X-ray detection mechanism B3 includes a flat panel detector B31, a flat panel lifting drive device B32, an X-ray emitter B33, an X-ray emitter lifting drive device B34, and an X-ray emitter translation drive device B35. The flat panel detector B31 and the X-ray emitter B33 are arranged opposite to each other up and down. The flat panel detector B31 is installed on the flat panel lifting drive device B32, and the flat panel lifting drive device B32 is used to drive the flat panel detector B31 to perform lifting motion. The X-ray emitter B33 is installed on the X-ray emitter lifting drive device B34, and the X-ray emitter lifting drive device B34 is installed on the X-ray emitter translation drive device B35. The X-ray emitter translation drive device B35 is used to drive the X-ray emitter to perform lateral movement, and the X-ray emitter lifting drive device B34 is used to drive the X-ray emitter B33 to perform lifting motion.

[0087] The structures of the first X-ray detection mechanism B3 and the second X-ray detection mechanism B4 are the same.

[0088] As Figure 13 and 14 shown, in one embodiment, the NG sorting box B8 includes a mounting frame B81, a drawer box B82, sorting drawers B83, and a movable shielding cover plate B84. The drawer box B82 is installed on the mounting frame B81. The upper end of the drawer box B82 is an open end. A plurality of sorting drawers B83 are provided and arranged side by side in the drawer box B82. The movable shielding cover plate B84 is movably arranged on the open end of the drawer box B82. When one of the sorting drawers B83 needs to leave the drawer box B82, the movable shielding cover plate B84 first moves above the sorting drawer B83 through the shielding cover plate driving module B88 and covers the upper part of the sorting drawer B83. When the sorting drawer B83 needs to be removed, the movable shielding cover plate B84 first covers the open end to form a physical barrier to prevent X-ray leakage during the process of picking and placing defective products. Combined with the lead plate housing C design of the overall equipment, a double shielding is formed to meet the protection requirements of industrial safety standards for ionizing radiation.

[0089] The multiple sorting drawers B83 can be classified and stored according to defect types (such as tab dislocation, foreign matter inclusion) or grades (severe / mild), which is convenient for subsequent targeted processing.

[0090] The "shield first and then pick up" is realized through the movement of the movable shielding cover plate B84, avoiding direct exposure of the operator to the X-ray environment. When a certain sorting drawer B83 is full, only the corresponding movable shielding cover plate B84 needs to be closed to open the sorting drawer B83, without stopping the machine, and maintaining the continuous operation of the production line.

[0091] In one embodiment, the periphery and bottom of the drawer box B82 are enclosed by lead plates. Lead is a high-density metal and has a strong absorption ability for X-rays. The periphery and bottom of the drawer box B82 are enclosed by lead plates, which can form an all-round physical shielding layer to effectively block X-ray leakage from the side, bottom and gaps of the box body. Cooperating with the movable shielding cover plate B84 at the top, a complete radiation protection system is formed to maximize the safety of personnel.

[0092] In one embodiment, a drawer self-locking cylinder B85 is provided on the side above the drawer box B82, and one drawer self-locking cylinder B85 corresponds to one sorting drawer B83. The self-locking cylinder ensures that the sorting drawer B83 remains fixed in the non-operating state through mechanical locking, preventing the drawer from accidentally sliding out due to equipment vibration or accidental touch. Especially in the X-ray detection scenario, it can prevent personnel from being exposed to the radiation environment when not operating according to the procedure. The cylinder and the movable shielding cover plate B84 form an interlocking mechanism: only when the shielding cover plate completely covers the target drawer, the corresponding self-locking cylinder will be unlocked to allow the drawer to be pulled out. This design ensures that the risk of X-ray leakage is minimized.

[0093] In one embodiment, a plurality of partition plates B86 are provided in the sorting drawer B83, and the partition plates B86 divide the sorting drawer B83 into multiple battery cell placement chambers. The partition plates B86 can physically isolate adjacent battery cells, preventing damage to the battery cell casing or electrodes due to shaking or friction during transportation or sorting.

[0094] In one embodiment, an avoidance groove B87 is provided in the upper part of the partition plate B86. The avoidance groove B87 provides an ergonomic finger-holding space for the operator.

[0095] In one embodiment, a lead plate is provided in the movable shielding cover plate B84.

[0096] In one embodiment, a full discharge inductor B89 is provided on the side of the drawer box B82. It monitors the filling state of the sorting drawer B83 in real time. When it detects that the number of battery cells reaches the preset quantity, it automatically triggers a stop or switching signal to avoid problems such as battery cell stacking and the shielding cover plate being unable to close due to overfilling.

[0097] In one embodiment, a discharge inductor is provided at the bottom of the drawer box B82. It monitors the physical position of the sorting drawer B83 in real time through the discharge inductor. When it detects that the pulling distance of the sorting drawer B83 exceeds the safety threshold, it immediately triggers the locking logic of the movable shielding cover plate B84.

[0098] As Figure 15 shown, the double-headed rotary discharge manipulator B5 includes a first mounting frame body B51, a first lifting and adsorbing component B52, a second lifting and adsorbing component B53, and a rotary drive component B54. The first lifting and adsorbing component and the second lifting and adsorbing component are installed on the rotary drive component relatively left and right, and the rotary drive component is installed on the first mounting frame body.

[0099] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0100] The device or component referred to in the embodiments of the present application or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise precisely and specifically defined.

[0101] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and not to limit them. Although the technical solutions of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multifunctional integrated device for comprehensive detection and processing of battery cells, characterized in that: It includes a lead plate housing, a multi-functional battery cell detection module and a battery cell X-ray detection and sorting module. The multi-functional battery cell detection module is connected to the battery cell X-ray detection and sorting module and is arranged inside the lead plate housing; The multi-functional battery cell detection module includes a first feeding mechanism, a loading robot, a first turntable mechanism, an IV test mechanism, an OCV test mechanism, a first tab shaping mechanism, a second tab shaping mechanism, a tab cutting mechanism, a battery cell thickness and dimension measurement mechanism, an unloading robot and a first discharging belt; The first feeding mechanism is used to convey the battery cells to the loading robot; the loading robot is arranged on one side of the first turntable mechanism and is used to transfer the battery cells on the first feeding mechanism into the first turntable mechanism; the IV test mechanism, the OCV test mechanism, the first tab shaping mechanism, the second tab shaping mechanism, and the tab cutting mechanism are sequentially arranged around the first turntable mechanism to perform IV test, OCV test, tab shaping, and tab cutting on the battery cells in sequence; the unloading robot is arranged on one side of the battery cell thickness and dimension measurement mechanism and is used to transfer the battery cells after tab cutting from the turntable mechanism to the battery cell thickness and dimension measurement mechanism for thickness and dimension measurement; the unloading robot can put the battery cells after thickness and dimension measurement onto the first discharging belt; the first discharging belt sends the battery cells into the battery cell X-ray detection and sorting module; The battery cell X-ray detection and sorting module includes a loading four-axis manipulator, a second turntable mechanism, a first X-ray detection mechanism, a second X-ray detection mechanism, a double-head rotating discharging manipulator, a second discharging belt, an NG sorting four-axis manipulator and an NG sorting box; The loading four-axis manipulator is arranged on one side of the second turntable mechanism. The loading four-axis manipulator is used to transfer the battery cells on the first discharging belt to the second turntable mechanism. The first X-ray detection mechanism, the second X-ray detection mechanism, and the double-head rotating discharging manipulator are sequentially arranged around the second turntable mechanism. The first X-ray detection mechanism is used to detect whether there are defects inside the two corners of the head of the battery cell, and the second X-ray detection mechanism is used to detect whether there are defects inside the two corners of the tail of the battery cell. The double-head rotating discharging manipulator is used to transfer the battery cells to the second discharging belt. The NG sorting four-axis manipulator transfers the defective battery cells to the NG sorting box, and the good products are discharged through the second discharging belt.

2. The integrated device for comprehensive detection and processing of a multifunctional battery cell, according to claim 1, wherein: The first feeding mechanism includes a first feeding belt, a first feeding code scanning device, a first CCD positioning device and a color mark sensor. The first feeding code scanning device is arranged on one side of the first feeding belt and is used to obtain the bar code information on the surface of the battery cell. The color mark sensor is arranged on the other side of the first feeding belt and is used to sense the battery cell and trigger the first CCD positioning device to take a picture to obtain the position of the battery cell.

3. A multifunctional integrated device for comprehensive detection and processing of battery cells according to claim 1, characterized in that: The first tab shaping mechanism includes a first longitudinal tab flattening device, a first transverse tab flattening device, and a first tab shaping support device. The first longitudinal tab flattening device is arranged above the first tab shaping support device. The first tab shaping support device is used to support the bottom of the tab. The first longitudinal tab flattening device is used to flatten the surface of the tab in the longitudinal direction. The first transverse tab flattening device is arranged on one side of the first longitudinal tab flattening device and is used to flatten the tab in the transverse direction.

4. The integrated device for comprehensive detection and processing of a multifunctional battery cell according to claim 1, characterized in that: The cell thickness and size measurement mechanism includes a transfer module, a CCD size measurement mechanism, and a PPG measurement mechanism. There are 2 sets of PPG measurement mechanisms, which are respectively installed near both ends of the transfer module. The CCD size measurement mechanism is arranged on one side of the middle of the transfer module. There are 2 sets of transfer carriers on the transfer module. The transfer carriers are used to drive the cell to the CCD size measurement mechanism for size measurement and to the PPG measurement mechanism for thickness measurement.

5. A multifunctional integrated device for comprehensive detection and processing of battery cells according to claim 1, characterized in that: A first lead plate protective cover is arranged near the cell X-ray detection and sorting module on the first discharge pull belt. The first lead plate protective cover is used to prevent the X-rays of the cell X-ray detection and sorting module from leaking into the multi-functional cell detection module.

6. The integrated device for comprehensive detection and processing of a multi-functional battery cell, according to claim 1, is characterized in that: A moving adsorption carrier and a carrier translation module are arranged on the second turntable mechanism. The moving adsorption carrier is installed on the carrier translation module. The carrier translation module is used to drive the moving adsorption carrier to drive the cell to move outwards.

7. A multifunctional integrated device for comprehensive detection and processing of battery cells according to claim 6, characterized in that: A carbon fiber bottom plate is arranged on the moving adsorption carrier. A sponge is arranged on the carbon fiber bottom plate. The sponge is connected to a gas guide plate. The gas guide plate is connected to an air extraction device. The air extraction device adsorbs and fixes the cell on the carbon fiber bottom plate through the gas guide plate and the sponge.

8. A multifunctional integrated device for comprehensive detection and processing of battery cells according to claim 1, characterized in that: The first X-ray detection mechanism includes a flat panel detector, a flat panel lifting drive device, an X-ray emitter, an X-ray emitter lifting drive device, and an X-ray emitter translation drive device. The flat panel detector and the X-ray emitter are arranged opposite to each other vertically. The flat panel detector is installed on the flat panel lifting drive device. The flat panel lifting drive device is used to drive the flat panel detector to move up and down. The X-ray emitter is installed on the X-ray emitter lifting drive device. The X-ray emitter lifting drive device is installed on the X-ray emitter translation drive device. The X-ray emitter translation drive device is used to drive the X-ray emitter to move horizontally. The X-ray emitter lifting drive device is used to drive the X-ray emitter to move up and down.

9. A multifunctional integrated equipment for comprehensive detection and processing of battery cells according to claim 1, characterized in that: The NG sorting box includes a mounting frame, a drawer box, sorting drawers, and a movable shielding cover plate. The drawer box is installed on the mounting frame. The upper end of the drawer box is an open end. There are multiple sorting drawers, which are arranged side by side in the drawer box. The movable shielding cover plate is movably arranged on the open end of the drawer box. When one of the sorting drawers needs to leave the drawer box, the movable shielding cover plate first moves above the sorting drawer and covers the upper part of the sorting drawer.

10. A multifunctional integrated device for comprehensive detection and processing of battery cells according to claim 9, characterized in that: The periphery and bottom of the drawer box are enclosed by lead plates.

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