A pole piece lamination deviation correction method and system

Abstract

The application discloses a kind of pole piece lamination deviation rectification method and system, it is related to energy storage battery technical field, method includes: S100: obtaining lamination table position, determine the preset standard position of pole piece on deviation rectification table;S200: obtain the preset distance of range finder and the pole piece located in pole piece preset standard position;S300: obtain the actual distance of range finder and pole piece placed on deviation rectification table;S400: by actual distance and preset distance, drive deviation rectification table to move so that pole piece carries out displacement, until the distance of pole piece and range finder equals preset distance;S500: carry out pole piece lamination process.The preset standard position and actual position of pole piece on deviation rectification table are obtained by range finder, deviation rectification table is directly moved, so that pole piece reaches the lamination position required, pole piece edge error does not appear, lamination effect is better, accuracy is higher, each specification pole piece can be effectively laminated.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery technology, and more specifically, to a method and system for correcting electrode stacking. Background Technology

[0002] Currently, most automotive power batteries use a stacked fast charging system, which requires high consistency, especially the alignment of the positive and negative electrodes. Due to the material of the positive and negative electrodes, to prevent the electrodes from rubbing against each other in the magazine and causing powder shedding or damage, a 3-5mm space needs to be reserved between the electrodes and the surrounding area. Therefore, during the stacking process, there are slight deviations in the vertical, horizontal, and angular positions of the electrodes placed on the alignment table compared to the preset standard stacking position. The electrodes need to be aligned and corrected before stacking can proceed.

[0003] Currently, the production line uses a CCD camera to compare the edges of the electrode / ceramic area, calculates the deviation position, and finally moves the electrode to the required stacking position via a motor. For example, Chinese invention patent CN116666725A provides a battery stacking correction process, which relates to the field of battery manufacturing technology. This process aims to address, to some extent, the problem of misjudgment caused by environmental factors during CCD edge detection, leading to electrode misalignment and blackening after correction, resulting in short circuits and fires between the positive and negative electrodes. The battery stacking correction process provided by the above invention includes the following steps: Step 1: Initial inspection and photographing to determine the electrode position, obtaining the electrode offset position and amount; Step 2: Right angle determination of each apex corner of the electrode; Step 3: If the edge angle judgment is qualified, correction adjustment is performed based on the offset amount and position; Step 4: Re-inspection and photographing to compare with the reference position. If there is an offset, the electrode is rejected; if qualified, the electrode is output for stacking.

[0004] However, due to issues with the incoming electrode material condition and material properties, uneven stacking and abnormal edge handling can easily occur during the stacking process, leading to misjudgment and waste disposal. For example, due to material system issues, even with the CCD camera's exposure value adjusted to the maximum, reflections can still easily occur in the material area and foil due to material system problems with the positive electrode and aluminum foil. This ultimately results in inaccurate edge handling calculation offset values, uneven stacking, or misjudgment and waste disposal. On the other hand, setting a wide range for incoming material size to ensure high yield and minimize waste disposal can easily lead to missed waste disposal. The negative electrode is relatively soft, and the edges of the incoming electrode and copper foil are prone to warping, resulting in inaccurate edge handling calculation offset values.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a reasonable electrode stacking correction method. Summary of the Invention

[0006] This invention provides a method for correcting electrode stacking. By using a rangefinder to obtain the preset standard position and actual position of the electrode on the correction platform, the correction platform is moved directly to make the electrode reach the required stacking position. This method avoids electrode correction errors and omissions, resulting in better stacking uniformity and higher accuracy. It can effectively stack electrodes of various specifications.

[0007] To achieve the above objectives, the present invention employs the following technical solution:

[0008] In a first aspect, embodiments of this application provide a method for correcting polarity during electrode stacking, the method comprising:

[0009] S100: Obtain the position of the stacking stage from the position sensor and determine the preset standard position of the electrode on the correction stage;

[0010] S200: Obtain the preset distance between the rangefinder on the side of the correction table and the electrode located at the preset standard position of the electrode;

[0011] S300: Obtain the actual distance between the rangefinder and the electrode placed on the correction stage;

[0012] S400: Based on the actual distance and the preset distance, drive the correction stage to move so that the electrode plate is displaced until the distance between the electrode plate and the rangefinder is equal to the preset distance.

[0013] S500: Executes the electrode stacking process.

[0014] As a preferred embodiment of the present invention, the rangefinder extends to the side of the non-tab end of the electrode, and the rangefinder includes an end rangefinder for obtaining the distance to the end of the electrode and an edge rangefinder for obtaining the distance to the edge of the electrode.

[0015] When performing step S200, the distance between the end rangefinder and the end of the electrode located at the preset standard position of the electrode, and the distance between the edge rangefinder and the edge of the electrode located at the preset standard position of the electrode are obtained and recorded as the preset end distance and the preset edge distance.

[0016] When performing step S300, the distance between the end rangefinder and the end of the electrode placed on the correction table, and the distance between the edge rangefinder and the edge of the electrode placed on the correction table are obtained and recorded as the actual end distance and the actual edge distance.

[0017] As a preferred embodiment of the present invention, step S400 specifically includes:

[0018] S401: Calculate the electrode deflection angle, left and right offset distance, and front and back offset distance by using the preset end distance, preset edge distance, actual end distance, and actual edge distance;

[0019] S402: Drives the correction stage to rotate the electrode deflection angle;

[0020] S403: The distance the drive correction stage moves in the left and right directions and in the front and back directions.

[0021] As a preferred embodiment of the present invention, after performing step S403, the following is also performed:

[0022] S404: Determine whether the distance to the electrode is the preset end distance and preset edge distance. If yes, proceed to step S500; otherwise, issue an alarm.

[0023] As a preferred embodiment of the present invention, when performing step S300, when the electrode sheet is placed on the correction table, the electrode sheet is adsorbed and fixed on the correction table through the negative pressure suction hole.

[0024] When step S500 is executed, the negative pressure suction hole stops adsorbing and fixing the electrode, and the output component outputs the electrode to the stacking stage to complete the stacking.

[0025] As a preferred embodiment of the present invention, the step of obtaining the position of the stacking stage and determining the preset standard position of the electrode on the correction stage includes:

[0026] Get the position of the stacking stage;

[0027] The preset standard position of the positive electrode on the correction stage is obtained based on the position of the positive electrode in the stacking stage, and the preset standard position of the negative electrode on the correction stage is obtained based on the position of the negative electrode in the stacking stage.

[0028] As a preferred embodiment of the present invention, when performing step S100, the initial position of the correction stage is obtained;

[0029] After executing step S500, the driving correction table moves back to its initial position.

[0030] Secondly, embodiments of this application provide an electrode stacking correction system, the system comprising:

[0031] Standard position determination module;

[0032] Preset distance acquisition module;

[0033] Actual distance acquisition module;

[0034] Correction execution module;

[0035] Electrode stacking module;

[0036] The standard position determination module obtains the position of the stacking stage from the position sensor and determines the preset standard position of the electrode on the correction stage; the preset distance acquisition module obtains the preset distance between the rangefinder on the side of the correction stage and the electrode located at the preset standard position; the actual distance acquisition module obtains the actual distance between the rangefinder and the electrode placed on the correction stage; the correction execution module drives the correction stage to move according to the actual distance and the preset distance, causing the electrode to shift until the distance between the electrode and the rangefinder is equal to the preset distance; the electrode stacking module executes the electrode stacking process.

[0037] Thirdly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method provided by any possible implementation of the first aspect.

[0038] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method provided by any possible implementation of the first aspect.

[0039] The beneficial effects of the electrode stacking correction method and system of the present invention are as follows: by obtaining the preset standard position and actual position of the electrode on the correction platform through a rangefinder, the correction platform is moved directly so that the electrode reaches the required stacking position, there will be no electrode correction error or missed detection, the stacking is more uniform and the accuracy is higher, and the electrode of various specifications can be effectively stacked. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments 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.

[0041] Figure 1 A schematic flowchart illustrating an electrode stacking correction method provided in an embodiment of this application;

[0042] Figure 2 This is a schematic diagram of the structure when obtaining the preset standard position of the electrode in an electrode stacking correction method provided in an embodiment of this application;

[0043] Figure 3 This is a schematic diagram of the structure for obtaining the actual distance to the electrode in an electrode stacking correction method provided in an embodiment of this application;

[0044] Figure 4 This is a schematic diagram of the structure of the correction table during the front-to-back and left-to-right adjustment in an electrode stacking correction method provided in an embodiment of this application. Detailed Implementation

[0045] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0046] In the following description, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of this application, which can be substituted or combined with each other. Therefore, this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then this application should also be considered to include embodiments containing one or more other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text.

[0047] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the described elements without departing from the scope of this application. Various processes or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.

[0048] Example 1: See Figures 1 to 4 , Figure 1 This is a flowchart illustrating an electrode lamination correction method provided in an embodiment of this application. In this embodiment, an electrode lamination correction method employs a controller to execute the electrode lamination correction algorithm. The controller is a lamination control system, in which components such as position sensors, rangefinders, and correction stage drive motors are added. The controller controls each component, acquires and processes component data, and finally performs the lamination correction operation of this application. The method includes:

[0049] S100: Obtain the position of the stacking stage from the position sensor and determine the preset standard position of the electrode on the correction stage;

[0050] Generally, the stacking stage is located directly below or diagonally below the alignment stage. Depending on the electrode specifications and the model and location of the stacking stage, the optimal electrode placement position on the alignment stage can be determined. This position is denoted as the preset standard position of the electrode on the alignment stage. When the electrode is positioned in the preset standard position, such as... Figure 2 As shown, the electrode plates on the correction stage can be output to the stacking stage for stacking.

[0051] There are multiple position sensors that can acquire the position of the stacking stage in various directions, thereby confirming the position information of the stacking stage and sending it to the controller.

[0052] S200: Obtain the preset distance between the rangefinder on the side of the correction table and the electrode located at the preset standard position of the electrode;

[0053] Here, a gripping head is used to grip an electrode sheet and place it in a preset standard position. Then, a distance measuring device on the side of the correction stage is used to obtain the preset distance between the electrode sheet and the electrode sheet located in the preset standard position. The distance measuring device sends its measured distance data to the controller.

[0054] It is important to note that the rangefinder extends towards the non-tab end of the electrode, meaning the electrode thickness is between 100 and 200 μm, so that the rangefinder can measure the distance to the thickness side of the electrode; and the rangefinder needs to avoid the tab side of the electrode to prevent damage to the tab part.

[0055] Ideally, the rangefinder should be positioned so that the bend angle extends toward the non-electrode end of the electrode.

[0056] Furthermore, the rangefinder includes an edge rangefinder for obtaining the distance to the edge of the electrode and an end rangefinder for obtaining the distance to the end of the electrode.

[0057] When performing step S200, the distance between the end rangefinder and the end of the electrode located at the preset standard position of the electrode, and the distance between the edge rangefinder and the edge of the electrode located at the preset standard position of the electrode are obtained and recorded as the preset end distance and the preset edge distance.

[0058] like Figure 2 As shown, rangefinder A1 is located at the edge of the non-tab end of the electrode, i.e., the edge rangefinder, and its distance from the edge of the electrode is a preset edge distance D1; rangefinder A2 is located at the end of the non-tab end of the electrode, i.e., the end rangefinder, and its distance from the end of the electrode is a preset end distance D2.

[0059] S300: Obtain the actual distance between the rangefinder and the electrode placed on the correction stage;

[0060] When an electrode sheet is placed on the correction stage, there is a placement error due to the thinness of the electrode sheet, so correction is required. At this time, the actual distance between the rangefinder and the electrode tab thickness side is obtained again.

[0061] When performing step S300, the distance L2 between the end rangefinder and the end of the electrode placed on the correction table, and the distance L1 between the edge rangefinder and the edge of the electrode placed on the correction table are obtained and recorded as the actual end distance and the actual edge distance, respectively. Figure 3 As shown.

[0062] S400: Based on the actual distance and the preset distance, drive the correction stage to move so that the electrode plate is displaced until the distance between the electrode plate and the rangefinder is equal to the preset distance.

[0063] Here, the driving source for the alignment table is a drive motor, and the controller controls the drive motor to work, thereby driving the alignment table to move.

[0064] When performing step S400, the specific steps include:

[0065] S401: Calculate the electrode deflection angle using the preset end distance, preset edge distance, actual end distance, and actual edge distance. Figure 3 Angle α), left and right offset distance ( Figure 4 C1 in the middle) and the front and rear offset distances ( Figure 4 (C2 in the middle)

[0066] S402: The correction table is driven by a motor to rotate the pole pieces and change their deflection angle.

[0067] S403: The left and right displacement distance of the correction table in the left and right direction and the forward and backward displacement distance in the forward and backward direction are driven by the motor.

[0068] Of course, after executing step S403, the following steps are also executed:

[0069] S404: Determine whether the distance to the electrode is the preset end distance and preset edge distance. If yes, proceed to step S500. Otherwise, there is an error in the electrode structure, equipment error, or interference from other external causes. Issue a first-level alarm and return to step S300 to perform correction again. If the correction still cannot be completed after a preset number of attempts, issue a second-level alarm.

[0070] S500: Executes the electrode stacking process, that is, the output unit of the stacking output system outputs the electrode to the stacking stage to complete the stacking.

[0071] After the electrode is corrected by moving the correction stage, the electrode reaches the ideal position. At this time, the electrode is output from the correction stage to the stacking stage to complete the stacking.

[0072] Example 2: This is only one embodiment of the present invention. Based on Example 1, in this invention, after executing step S500, it is determined whether the number of stacked electrodes has reached the preset number. If so, the stacking is completed; otherwise, it returns to step S300 to perform the stacking correction of the next electrode.

[0073] In this invention, when step S300 is performed, the electrode sheet is placed on the correction table and is adsorbed and fixed on the correction table through the negative pressure suction hole; when step S500 is performed, the negative pressure suction hole stops adsorbing and fixing the electrode sheet, and the output component outputs the electrode sheet to the stacking table to complete the stacking.

[0074] In other words, after the electrode is placed on the alignment table, the negative pressure suction holes on the alignment table apply negative pressure to attract the electrode onto the alignment table, preventing relative displacement between the electrode and the alignment table. This avoids the influence of equipment vibration and airflow on blowing the electrode, and can effectively ensure that the electrode effectively follows the displacement adjustment when the alignment table drives the displacement adjustment. After the alignment table completes the electrode alignment, the electrode reaches the ideal position. At this time, the negative pressure suction holes no longer generate negative pressure, the electrode is released, and it is output to the stacking table for stacking.

[0075] Furthermore, after step S500 is executed, the motor drives the correction table to move back to the initial position of the correction table in step S100. That is, after the correction of one electrode is completed, the correction table also needs to return to the initial position to facilitate the placement of the next electrode.

[0076] There are two ways to implement this:

[0077] In the first method, when executing step S100, the position sensor acquires the initial position of the correction stage, that is, records the initial state of the correction stage and sends it to the controller; and after executing step S500, the motor drives the correction stage to move back to the initial position of the correction stage.

[0078] In the second method, during step S400, the position sensor acquires the displacement trajectory of the correction stage; and after step S500, the motor drives the correction stage to move in the reverse direction of the correction stage displacement trajectory to restore the correction stage to its initial position.

[0079] It should be noted that since the position of the rangefinder does not change during the electrode alignment process, the distance between the preset standard position of the electrode and the distance value of the rangefinder is not necessarily related to the position of the alignment platform. In fact, after executing step S500, it is not very necessary for the alignment platform to move back to its initial position. However, the boundary line of the preset standard position of the electrode is drawn on the alignment platform. In order to facilitate the placement of the electrode with this boundary line as a reference, and to avoid the alignment platform deviating too far from the stacking stage after multiple displacements, it is best to restore the alignment platform to its original position after each electrode is stacked.

[0080] Example 3: This is only one embodiment of the present invention. Based on any of the above embodiments, in the present invention, when executing step S100, obtaining the position of the stacking stage and determining the preset standard position of the electrode on the correction stage includes: obtaining the position of the stacking stage, obtaining the preset standard position of the positive electrode on the correction stage according to the stacking position of the positive electrode in the stacking stage, and obtaining the preset standard position of the negative electrode on the correction stage according to the stacking position of the negative electrode in the stacking stage.

[0081] The rangefinder includes a positive rangefinder and a negative rangefinder. The positive rangefinder is located at the non-electrode end of the positive electrode plate, and the negative rangefinder is located at the non-electrode end of the negative electrode plate.

[0082] When performing step S200, the positive electrode distance measuring instrument on the side of the correction table acquires the preset positive electrode distance with the positive electrode at the preset standard position of the positive electrode; the negative electrode distance measuring instrument on the side of the correction table acquires the preset positive electrode distance with the negative electrode at the preset standard position of the negative electrode.

[0083] When performing step S300, if the correction stage has an electrode plate, determine whether the electrode plate is a positive electrode plate. If it is, the positive electrode rangefinder obtains the actual distance to the positive electrode of the positive electrode plate and performs step S400'. Otherwise, the negative electrode rangefinder obtains the actual distance to the negative electrode of the negative electrode plate and performs step S400''.

[0084] S400': By comparing the actual distance to the positive electrode with the preset distance to the positive electrode, the correction stage is driven to move, causing the positive electrode to shift until the distance between the positive electrode and the positive electrode rangefinder is equal to the preset distance to the positive electrode.

[0085] S400''; By comparing the actual distance to the negative electrode with the preset distance to the negative electrode, the correction stage is driven to move, causing the negative electrode to shift until the distance between the negative electrode and the negative electrode rangefinder equals the preset distance to the negative electrode.

[0086] Example 4: This is only one embodiment of the present invention. Based on any of the above embodiments, in this invention, the rangefinder is a laser rangefinder, and the diameter of the laser emitted is no greater than 50μm. The laser is emitted onto an electrode plate with a thickness of 100~200μm, and the distance between the electrode plate and the rangefinder is calculated by the laser light that is diffusely reflected back.

[0087] Of course, each laser rangefinder emits a different laser frequency, so that only the laser rangefinder can receive the laser of its own frequency. This prevents the electrode from tilting and causing one laser rangefinder to receive the laser emitted and reflected by another laser rangefinder. Alternatively, multiple laser rangefinders can emit lasers at different times to avoid interference between the lasers emitted by multiple rangefinders.

[0088] Correcting the polarity of one electrode requires four rangefinders: two edge rangefinders and two end rangefinders, such as... Figure 2 As shown, A1 and A4 are edge rangefinders, facing the side of the non-tab end of the electrode tab away from the tab end, respectively; A2 and A3 are end rangefinders, facing the left and right end points of the end face of the non-tab end of the electrode, respectively. In short, the non-tab end of the electrode tab has two bending angles, and the four rangefinders face the four thickness side surfaces of the two bending angles, respectively.

[0089] Furthermore, the laser emitted by the rangefinder is parallel to the surface of the electrode, meaning the laser is perpendicular to the thickness side of the electrode.

[0090] When performing step S401, the electrode deflection angle is calculated using the preset end distance, preset edge distance, actual end distance, and actual edge distance. Figure 3 Angle α), left and right offset distance ( Figure 4 C1 in the middle) and the front and rear offset distances ( Figure 4 (C2 in the middle)

[0091] Specifically: when the electrode is located at the preset standard position, the four rangefinders obtain the preset distances D1, D2, D3 and D4; when the electrode is placed on the correction platform for correction operation, the four rangefinders obtain the actual distances L1, L2, L3 and L4.

[0092] The deflection angle α of the electrode can be calculated using trigonometric functions. tanα = (L1-D1) / (L2-D2), i.e., the deflection angle α = arctan((L1-D1) / (L2-D2)). Furthermore, the values ​​of L2 and L3 are compared. If L2 is greater than L3, the correction stage rotates clockwise by an angle α; conversely, if L2 is less than L3, the correction stage rotates counterclockwise by an angle α.

[0093] Then, let the rotation center point O of the correction stage be the coordinate center, and the center point of the preset standard position of the electrode plate is also O; and when the electrode plate is in the preset standard position, the distances from the center point O to the long side and the short side of the electrode plate are p and q respectively, such that D1=D4 and D2=D3:

[0094] The coordinates of the four rangefinders are (-p-D1,-q), (-p,-q-D2), (p, -q-D2), and (p+D1,-q).

[0095] The electrode is placed on the correction stage. The perpendiculars from O to the long side and short side of the electrode intersect at points V and H, respectively. Before the correction stage rotates, the coordinates of the points a, b, c, and d where the lasers emitted by P1, P2, P3, and P4 intersect with the electrode are (L1-p-P1, -q), (-p, L2-q-D2), (p, L3-q-D2), and (p+D1-L4,-q), respectively.

[0096] Based on the coordinates of a and b, the equation of the long side of the electrode on the coordinate axis is: y_length = ((L2-D2) / (D1-L1))*(x + p + D1-L1) - q; similarly, the equation of the short side of the electrode on the coordinate axis is: y_short = ((D2-L3) / (D4-L4))*(xp - D1 + D4) + L3 - q - D2;

[0097] The perpendicular distance from the center of rotation to the edge of the long / short side of the electrode can be calculated:

[0098] ;

[0099] ;

[0100] Since D1=D4 and D2=D3, then:

[0101] ;

[0102] Finally, calculate the left-right offset of the electrode C1 = p - |OV|. If C1 > 0, shift to the right by C1; if C1 < 0, shift to the left by |C1|. Similarly, calculate the up-down offset of the electrode C2 = q - |OH|. If C2 > 0, shift upward by C2; if C2 < 0, shift downward by |C2|.

[0103] Then, step S402 is executed, in which the correction stage is rotated by an angle arctan((L1-D1) / (L2-D2)) driven by the motor; step S403 is executed, in which the correction stage is displaced by p-|OV| in the left-right direction and by q-|OH| in the front-back direction driven by the motor.

[0104] This invention obtains the preset standard position and actual position of the electrode on the correction platform through a rangefinder, and directly moves the correction platform so that the electrode reaches the required stacking position. There will be no electrode correction error or missed detection, the stacking is more neat and the accuracy is higher. It can effectively stack electrodes of various specifications.

[0105] Example 5: An electrode stacking correction system provided in this application includes:

[0106] Standard position determination module;

[0107] Preset distance acquisition module;

[0108] Actual distance acquisition module;

[0109] Correction execution module;

[0110] Electrode stacking module;

[0111] The standard position determination module obtains the position of the stacking stage from the position sensor and determines the preset standard position of the electrode on the correction stage; the preset distance acquisition module obtains the preset distance between the rangefinder on the side of the correction stage and the electrode located at the preset standard position; the actual distance acquisition module obtains the actual distance between the rangefinder and the electrode placed on the correction stage; the correction execution module drives the correction stage to move according to the actual distance and the preset distance, causing the electrode to shift until the distance between the electrode and the rangefinder is equal to the preset distance; the electrode stacking module executes the electrode stacking process.

[0112] Those skilled in the art will clearly understand that the technical solutions of the embodiments of this application can be implemented by means of software and / or hardware. In this specification, "unit" and "module" refer to software and / or hardware that can independently complete or cooperate with other components to complete a specific function, wherein the hardware may be, for example, a field-programmable gate array (FPGA), an integrated circuit (IC), etc.

[0113] It is understood that the systems provided in the embodiments of the present invention are all applicable to the methods described in any one of embodiments one to four, and the specific functions of each module can be referred to the above method flow, which will not be repeated here.

[0114] Example 6: An electronic device provided in this embodiment of the invention is used to implement the method described in any one of Examples 1 to 4. The electronic device may include: at least one central processing unit, at least one network interface, a control interface, a memory, and at least one communication bus.

[0115] The communication bus is used to enable communication and information exchange between the various components.

[0116] The network interface may include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0117] The control interface is used to output control operations according to instructions.

[0118] The central processing unit (CPU) may include one or more processing cores. The CPU connects to various parts of the terminal using various interfaces and lines, and executes various functions and processes data of the terminal by running or executing instructions, programs, code sets, or instruction sets stored in memory, and by calling data stored in memory, according to any one of the methods described in Embodiments 1 to 4.

[0119] The memory may include random access memory (RAM) or read-only memory. Optionally, the memory may include non-transitory computer-readable storage medium. The memory can be used to store instructions, programs, code, code sets, or instruction sets. The memory may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), methods for implementing any of the above embodiments one to four, etc.; the data storage area may store data involved in the above method embodiments, etc.

[0120] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in any one of embodiments one to four above. The computer-readable storage medium may include, but is not limited to, any type of disk, including floppy disks, optical disks, DVDs, CD-ROMs, microdrives, as well as magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic cards or optical cards, nanosystems (including molecular memory ICs), or any type of medium or device suitable for storing instructions and / or data.

[0121] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0122] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0123] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some service interface; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0124] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, the functional units in the various embodiments of this invention 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 units described above can be implemented in hardware or as software functional units.

[0125] 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 device (CMD). Based on this understanding, the technical solution of this invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0126] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0127] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0128] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered within the scope of protection of the present invention.

Claims

1. A pole piece lamination deviation correction method, characterized by, The method comprises the following steps: S100: obtaining the position of the laminating table from a position sensor and determining the preset standard position of the pole piece on the rectification table; S200: obtaining the distance between the end distance sensor and the end of the pole piece located at the preset standard position of the pole piece, and the distance between the side distance sensor and the side of the pole piece located at the preset standard position of the pole piece, which are recorded as the preset end distance and the preset side distance; The distance sensor extends towards the side of the non-pole lug end of the pole piece, and the distance sensor comprises an end distance sensor for obtaining the distance from the end of the pole piece and a side distance sensor for obtaining the distance from the side of the pole piece, and the two side distance sensors are respectively located at the left and right end points of the end surface of the non-pole lug end of the pole piece and are away from the end of the pole lug end; S300: obtaining the distance between the end distance sensor and the end of the pole piece located on the rectification table, and the distance between the side distance sensor and the side of the pole piece located on the rectification table, which are recorded as the actual end distance and the actual side distance; S400: driving the rectification table to move so that the pole piece is displaced until the distance between the pole piece and the distance sensor is equal to the preset distance according to the actual distance and the preset distance; S500: performing the pole piece laminating process; When step S400 is performed, the following steps are specifically included: S401: calculating the pole piece deflection angle, the left-right offset distance, and the front-back offset distance by using the preset end distance, the preset side distance, the actual end distance, and the actual side distance; S402: driving the rectification table to rotate the pole piece by the deflection angle; S403: driving the rectification table to displace the pole piece by the left-right offset distance in the left-right direction and by the front-back offset distance in the front-back direction.

2. The pole piece laminating rectification method according to claim 1, wherein after step S403 is performed, the following step is further performed: S404: judging whether the distance from the pole piece is the preset end distance and the preset side distance, and if yes, performing step S500; otherwise, issuing an alarm.

3. The pole piece laminating rectification method according to claim 1, wherein when step S300 is performed, the pole piece is fixed on the rectification table by the negative pressure suction hole when the rectification table is provided with the pole piece; When step S500 is performed, the negative pressure suction hole stops fixing the pole piece, and the output member outputs the pole piece to the laminating table to complete the lamination. The method comprises the following steps: Obtaining the position of the laminating table; 4. The pole piece lamination correction method of claim 1, wherein, According to the positive pole piece laminating position in the laminating table, the preset standard position of the positive pole piece on the rectification table is obtained, and according to the negative pole piece laminating position in the laminating table, the preset standard position of the negative pole piece on the rectification table is obtained.

5. The pole piece laminating rectification method according to claim 1, wherein when step S100 is performed, the initial position of the rectification table is obtained; After step S500 is performed, the rectification table is driven to move back to the initial position of the rectification table. The method comprises the following steps: A standard position determination module; A preset distance acquisition module; 6. A pole piece lamination correction system characterized by, An actual distance acquisition module; A rectification execution module; A pole piece laminating module; The standard position determination module obtains the position of the laminating table from a position sensor and determines the preset standard position of the pole piece on the rectification table; ​ ​ ​ The preset distance acquisition module acquires the distance between the end distance gauge and the end of the pole piece located at the preset standard position of the pole piece, and the distance between the side distance gauge and the side of the pole piece located at the preset standard position of the pole piece, denoted as a preset end distance and a preset side distance; the actual distance acquisition module acquires the distance between the end distance gauge and the end of the pole piece placed on the deviation rectifying table, and the distance between the side distance gauge and the side of the pole piece placed on the deviation rectifying table, denoted as an actual end distance and an actual side distance; the deviation rectifying execution module drives the deviation rectifying table to move so that the pole piece is displaced according to the actual distance and the preset distance, until the distance between the pole piece and the distance gauge is equal to the preset distance; The pole piece stacking module executes a pole piece stacking process; The distance gauge is arranged to extend towards the side of the non-pole lug end of the pole piece, and the distance gauge comprises an end distance gauge for acquiring the distance from the end of the pole piece and a side distance gauge for acquiring the distance from the side of the pole piece, the two side distance gauges are respectively arranged to extend towards the side of the non-pole lug end of the pole lug away from the end of the pole lug end, and the two end distance gauges are respectively arranged to extend towards the left and right end points of the side of the non-pole lug end of the pole piece; When the deviation rectifying execution module is executed, it specifically comprises: The preset end distance, the preset side distance, the actual end distance and the actual side distance are used to calculate the pole piece deflection angle, the left-right offset distance and the front-back offset distance; The deviation rectifying table is driven to rotate the pole piece deflection angle; The deviation rectifying table is driven to displace the left-right offset distance in the left-right direction and the front-back offset distance in the front-back direction.

7. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the computer program to implement the method of any one of claims 1-5.

8. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the method of any one of claims 1-5.

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