Electrode Correction Method and Device

Abstract

This application provides an electrode alignment method and apparatus, belonging to the field of electrode alignment technology. The electrode alignment method includes: acquiring the actual size parameters and actual position parameters of the electrode; comparing the actual size parameters with target size parameters to determine whether the actual size parameters are accurate; if the actual size parameters are accurate, determining the rotation center parameter of the actual position parameter; determining the offset of the actual position parameter based on the rotation center parameter; and correcting the electrode based on the offset. This improves the alignment effect of the electrode alignment method.

Description

Technical Field

[0001] This application relates to the field of electrode alignment technology, and in particular to an electrode correction method and apparatus. Background Technology

[0002] In the lithium-ion battery manufacturing process, the stacking process is the core step that forms the electrode core by stacking positive electrode sheets, negative electrode sheets, and separators. The alignment accuracy of the electrode sheets directly affects the stacking quality of the electrode core, which in turn affects the battery's capacity, cycle life, and safety.

[0003] In existing technologies, electrode alignment and correction methods mainly include: extracting the actual position of the electrode itself through image acquisition, calculating the offset between the actual position and the target position, and adjusting the position of the electrode according to the offset to align it with the target position.

[0004] However, the existing electrode correction methods have poor correction performance. Summary of the Invention

[0005] This application provides an electrode correction method and apparatus to solve the problem of poor correction effect of existing electrode correction methods.

[0006] In a first aspect, embodiments of this application provide an electrode correction method, including:

[0007] Obtain the actual size and position parameters of the electrode;

[0008] Compare the actual size parameters with the target size parameters to determine whether the actual size parameters are accurate;

[0009] When the actual dimensional parameters are accurate, determine the rotation center parameters of the actual position parameters;

[0010] Based on the rotation center parameters, determine the offset of the actual position parameters;

[0011] The electrode is corrected based on the offset.

[0012] In one possible implementation, comparing the actual size parameters with the target size parameters to determine whether the actual size parameters are accurate includes:

[0013] The first length parameter and the first width parameter are determined based on the actual size parameters, and the second length parameter and the second width parameter are determined based on the target size parameters;

[0014] Determine whether the first length parameter and the second length parameter are equal, and determine whether the first width parameter and the second width parameter are equal;

[0015] When the first length parameter and the second length parameter are equal, and the first width parameter and the second width parameter are equal, the actual size parameter is determined to be accurate.

[0016] If the first length parameter and the second length parameter are not equal, and / or the first width parameter and the second width parameter are not equal, re-acquire the actual size parameters and compare them with the target size parameters, or discard the waste.

[0017] In one possible implementation, determining the rotation center parameter of the actual position parameter includes:

[0018] Determine the actual diagonal coordinates of the electrode based on the actual size and position parameters;

[0019] Based on the target size parameters and target position parameters, determine the target diagonal point coordinate parameters of the electrode;

[0020] Based on the actual diagonal coordinate parameters and the target diagonal coordinate parameters, determine the common rotation center parameters of the actual position parameters relative to the target position parameters.

[0021] In one possible implementation, the rotation center parameter, which is common to the actual position parameter relative to the target position parameter, is determined based on the actual diagonal point coordinate parameters and the target diagonal point coordinate parameters, including:

[0022] Based on the actual diagonal point coordinate parameters and the target diagonal point coordinate parameters, determine the rotation angle of the actual position parameters relative to the target position parameters;

[0023] The rotation center parameters are determined based on the rotation angle, the actual diagonal point coordinates, and the target diagonal point coordinates.

[0024] In one possible implementation, determining the offset of the actual position parameter relative to the target position parameter based on the rotation center parameter includes:

[0025] The first drive coordinate parameters of the first drive component, the second drive coordinate parameters of the second drive component, and the third drive coordinate parameters of the third drive component are obtained through calibration.

[0026] The offset is determined based on the first drive coordinate parameters, the second drive coordinate parameters, the third drive coordinate parameters, and the rotation center parameters.

[0027] In one possible implementation, determining the offset based on the first drive coordinate parameters, the second drive coordinate parameters, the third drive coordinate parameters, and the rotation center parameters includes:

[0028] The first offset is determined based on the first driving coordinate parameters and the rotation center parameters;

[0029] The second offset is determined based on the second driving coordinate parameters and the rotation center parameters;

[0030] The third offset is determined based on the third driving coordinate parameters and the rotation center parameters.

[0031] In one possible implementation, the electrode is corrected based on the offset, including:

[0032] The first driving element moves one side of the electrode by a first offset in the first direction;

[0033] The second driving element moves the other side of the electrode by a second offset in the second direction;

[0034] The electrode is moved by a third offset in a third direction by a third driving element;

[0035] The first direction is opposite to the second direction and both are perpendicular to the third direction.

[0036] In one possible implementation, after obtaining the actual size parameters and actual position parameters of the electrode, the method further includes:

[0037] The target size parameters and target position parameters of the corresponding electrode are obtained through calibration.

[0038] In one possible implementation, after correcting the electrode based on the offset, the method further includes:

[0039] Obtain the correction dimension parameters and correction position parameters of the electrode;

[0040] The correction position parameters are compared with the target position parameters to determine whether the correction position parameters are consistent with the target position parameters;

[0041] When the correction position parameters are consistent with the target position parameters, the electrode correction method is completed;

[0042] If the correction position parameters are inconsistent with the target position parameters, repeat the electrode correction method or discard the waste.

[0043] Secondly, embodiments of this application provide an electrode correction device, comprising:

[0044] Fixing components are used to place the electrode plates;

[0045] Image acquisition component, used to acquire information from the electrode;

[0046] The drive component drives the electrode to move;

[0047] The controller is electrically connected to the image acquisition component and the drive component. The controller is used to acquire the target size parameters and target position parameters, acquire the actual size parameters and actual position parameters through the image acquisition component, determine the rotation center parameters and offset, and control the drive component to move the offset.

[0048] This application provides an electrode correction method and apparatus. In the electrode correction method, after obtaining the actual size parameters and actual position parameters of the electrode, the actual size parameters can be compared with the target size parameters to accurately determine whether the obtained actual size parameters meet the requirements. This avoids deviations in subsequent offset calculations due to inaccurate size acquisition, preventing a decrease in correction accuracy. Simultaneously, during the offset calculation process, the rotation center parameter of the actual position parameters needs to be calculated first. Calculating the rotation center parameter based on accurate actual position parameters further enhances its accuracy. Therefore, the correction effect of the electrode correction method is improved. Attached Figure Description

[0049] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0050] Figure 1 A schematic diagram of the electrode correction method provided in the embodiments of this application;

[0051] Figure 2 for Figure 1 Flowchart of the mid-electrode correction method;

[0052] Figure 3 for Figure 1 Schematic diagram of the principle of the mid-electrode correction method Figure 1 ;

[0053] Figure 4 for Figure 1 Schematic diagram of the principle of the mid-electrode correction method Figure 2 ;

[0054] Figure 5 for Figure 1 Schematic diagram of the principle of the mid-electrode correction method Figure 3 ;

[0055] Figure 6 This is a schematic diagram of the electrode correction device provided in the embodiments of this application.

[0056] Explanation of reference numerals in the attached figures:

[0057] 100-electrode film;

[0058] 200 - Fixed components;

[0059] 300 - Image acquisition component; 310 - Image acquisition device;

[0060] 400 - Drive component; 410 - First drive component; 420 - Second drive component; 430 - Third drive component.

[0061] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the absence of conflict, the following embodiments and features can be combined with each other.

[0063] In existing technologies, electrode alignment and correction methods mainly include: extracting the actual position of the electrode itself through image acquisition, calculating the offset between the actual position and the target position, and adjusting the position of the electrode according to the offset to align it with the target position.

[0064] However, in the existing technology, the center of the electrode itself is mainly extracted as the rotation center, and the offset is calculated with respect to the center of the target position. When the center of the target position has errors due to the processing error and assembly deviation of the correction device, the accuracy of the calculated correction amount will decrease.

[0065] Furthermore, if the actual position information of the electrode is acquired incorrectly during the image acquisition process, the accuracy of the calculated correction amount will also decrease.

[0066] Therefore, the existing electrode correction methods have poor correction performance.

[0067] To overcome the shortcomings of existing technologies, this application provides an electrode correction method and apparatus. In the electrode correction method, after obtaining the actual size parameters and actual position parameters of the electrode, the actual size parameters can be compared with the target size parameters to accurately determine whether the obtained actual size values ​​meet the requirements. This avoids deviations in subsequent offset calculations due to inaccurate size acquisition, preventing a decrease in correction accuracy. Simultaneously, during the offset calculation process, the rotation center parameter of the actual position parameters needs to be calculated first. Calculating the rotation center parameter based on the accurate actual position parameters further enhances the accuracy of the rotation center parameter. Therefore, the correction effect of the electrode correction method is improved.

[0068] The present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the present invention.

[0069] In some embodiments, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the electrode correction method includes:

[0070] S101: Obtain the actual size parameters and actual position parameters of electrode 100.

[0071] Accurately obtaining the actual size and position parameters of electrode 100 can provide data for subsequent comparison and correction operations.

[0072] Specifically, the image acquisition component 300 mounted on the electrode alignment device can take pictures of the electrode 100, and the controller can obtain the actual size and position parameters of the electrode 100 on the fixing component 200 of the electrode alignment device based on the pictures taken by the image acquisition component 300. The image acquisition component includes three image acquisition elements 310, each of which can be a charge-coupled device (CCD) camera. Using the CCD as the image sensor, it converts light signals into electrical signals, ultimately forming a digital image. The three CCD cameras are respectively positioned at the three apex positions of the electrode 100 corresponding to the target position on the fixing component 200.

[0073] After obtaining the actual size and position parameters of electrode 100, the following is also included:

[0074] The target size parameters and target position parameters of the corresponding electrode 100 are obtained through calibration.

[0075] The target size and position parameters provide a clear reference for the actual state of the electrode 100. After determining the target parameters, the actual size and position parameters can be precisely compared with them. This comparison accurately identifies deviations in the size and position of the electrode 100, providing specific adjustment directions and magnitudes for subsequent correction operations. The calibrated target parameters ensure that electrodes 100 from the same batch or different batches are produced and inspected according to the same standards. Through standardized target parameters, each electrode 100 can undergo standardized correction operations, resulting in high consistency in size and position among the produced electrodes, thereby improving the overall product quality stability.

[0076] The target size parameter is the size of the electrode 100 detected by the electrode 100 cutting device after the electrode 100 roll is cut by the cutting device in the previous process of electrode 100 processing. The target unknown parameter is the position that the electrode 100 should be on the fixed assembly 200 obtained through calibration, and it is also the position that the electrode 100 needs to be in after correction.

[0077] S102: Compare the actual size parameters with the target size parameters to determine whether the actual size parameters are accurate.

[0078] By comparing the actual and target size parameters, any dimensional deviations in electrode 100 can be detected in a timely manner. If the actual size parameters are inaccurate, it may indicate a problem during the production of electrode 100, such as dimensions not meeting design requirements. In such cases, proactive measures can be taken to avoid subsequent corrective operations based on erroneous dimensions, thus improving the accuracy and effectiveness of correction.

[0079] This includes comparing the actual size parameters with the target size parameters to determine whether the actual size parameters are accurate, including:

[0080] The first length parameter L is determined based on the actual size parameters. A and the first width parameter W A And determine the second length parameter L based on the target size parameter. B Second width parameter W B ;

[0081] Determine the first length parameter L A Second length parameter L B Check if they are equal, and determine the first width parameter W. A Second width parameter W B Are they equal?

[0082] First length parameter L A Second length parameter L B Equal to, and, the first width parameter W A Second width parameter W B When they are equal, the actual size parameters are confirmed to be accurate.

[0083] First length parameter L A Second length parameter L B Not equal, and / or, the first width parameter W A Are the second width parameter W equal? B If they are not equal, re-obtain the actual size parameters and compare them with the target size parameters, or discard the waste.

[0084] The actual size parameters and the target size parameters are refined into two dimensions: length and width, respectively, thus determining the first length parameter L.A First width parameter W A The second length parameter L B Second width parameter W B Specifically, the actual coordinates of the electrode 100 and the target coordinates at the three vertices of the electrode 100 are obtained using three CCD cameras positioned at the vertices of the target location, and then the first length parameter L is calculated. A First width parameter W A The second length parameter L B Second width parameter W B This refined operation allows for more precise judgment. By separately checking whether the length and width parameters are equal, any dimensional deviations in the electrode 100 can be quickly detected. If the first and second length parameters are found to be unequal, and / or the first and second width parameters are found to be unequal, it indicates a dimensional problem with the electrode 100. Re-acquiring and comparing the actual dimensional parameters when a dimensional mismatch is found helps improve the reliability of the measurement data.

[0085] Wherein, the first length parameter L A Second length parameter L B Let W be the dimension of electrode 100 in the X direction, and the first width parameter be W. A Second width parameter W B This represents the dimension of electrode 100 in the Y direction.

[0086] S103: When the actual dimensional parameters are accurate, determine the rotation center parameter O (X0, Y0) of the actual position parameters.

[0087] The rotation center parameter is a key factor in determining the positional offset of electrode 100. When the actual dimensional parameters are accurate, determining the rotation center parameter can provide a reference point for subsequent offset calculations. By clearly defining the rotation center, the positional changes of electrode 100 can be described more accurately.

[0088] Among them, the rotation center parameter O(X0, Y0) that determines the actual position parameter includes:

[0089] Based on the actual size parameters and actual position parameters, determine the actual diagonal coordinate parameter C(X) of electrode 100. C Y C ), D (X) d Y d );

[0090] Based on the target size parameters and target position parameters, determine the target diagonal coordinate parameter A (X) of electrode 100. a Y a ), B (X) b Y b );

[0091] Based on the actual diagonal coordinate parameters C(X) C Y C ), D (X) d Y d ) and the target diagonal point coordinate parameter A (X a Y a ), B (X) b Y b ), determine the rotation center parameter O (X0, Y0) that is common to the actual position parameters relative to the target position parameters.

[0092] Based on the diagonal coordinates, the difference between the actual and target positions can be calculated conveniently and accurately. Whether the electrode 100 undergoes translation, rotation, or a combination of both, the changes in the diagonal coordinates are reflected. The rotation center is a crucial reference point for describing the positional adjustment of the electrode 100. Determining the rotation center parameters using the actual and target diagonal coordinates allows for a comprehensive consideration of the overall positional changes of the electrode 100. Compared to other methods that may only consider local feature points, using diagonal coordinates provides a more comprehensive reflection of the rotational characteristics of the electrode 100, thereby improving the accuracy of the rotation center calculation.

[0093] Among them, the two opposite corner points on the actual position parameters of the selected electrode 100 are C(X) C Y C ), D (X) d Y d ), and selected the two diagonal points of the target position of electrode 100 as A (X a Y a ), B (X) b Y b ).

[0094] Given two points A and B at the known target positions and two points C and D at the actual positions, connect them with lines AB and CD respectively. Draw perpendicular bisectors for lines AC and BD respectively. The intersection point is the common rotation center parameter of the actual position parameters relative to the target position parameters, and the rotation center is O(X0, Y0).

[0095] Then, based on the actual diagonal point coordinate parameters C(X) C Y C ), D (X) d Y d ) and the target diagonal point coordinate parameter A (X a Y a ), B (X) b Y b ), determine the common rotation center parameter O(X0, Y0) of the actual position parameters relative to the target position parameters, including:

[0096] Based on the actual diagonal coordinate parameters C(X) C Y C ), D (X) d Y d ) and the target diagonal point coordinate parameter A (X a Y a ), B (X) b Y b ), determine the rotation angle θ of the actual position parameters relative to the target position parameters;

[0097] Based on the rotation angle θ and the actual diagonal point coordinate parameter C(X) C Y C ), D (X) d Y d ) and the target diagonal point coordinate parameter A (X a Y a ), B (X) b Y b ), determine the rotation center parameters O (X0, Y0).

[0098] By determining the rotation angle using the actual and target diagonal coordinates, the degree of rotational deviation of the electrode 100 from its target position can be precisely quantified. Combining the rotation angle, actual diagonal coordinates, and target diagonal coordinates to determine the rotation center parameters allows for a comprehensive consideration of the electrode 100's rotation and positional changes. Compared to methods relying solely on coordinate parameters to determine the rotation center, introducing rotation angle information provides a more comprehensive description of the electrode 100's motion characteristics, thereby improving the accuracy of rotation center calculation. Since the determination of the rotation center parameters is based on accurate rotation angle and coordinate information, the accuracy of the correction operation can be improved from the outset. This helps reduce the accumulation of errors caused by inaccurate rotation center during the correction process, preventing the electrode 100 from failing to reach the target position after multiple adjustments, thus improving production efficiency and product quality.

[0099] Furthermore, the obtained rotation center is the rotation center corresponding to the overall translation of the electrode 100 from its actual position to its target position, rather than the geometric center of the electrode 100 itself.

[0100] After obtaining the AC and BD lines, the rotation angle θ of the actual position parameters relative to the target position parameters can be calculated, that is:

[0101]

[0102]

[0103] Then, the rotation center parameters O(X0, Y0) can be calculated based on sinθ and cosθ, i.e.:

[0104]

[0105]

[0106] Among them, (X) e Y e Let E be the center point of the line connecting points C and D. (X) f Y f ( ) represents the coordinates of point F, the center of the line connecting points A and B.

[0107] S104: Determine the offset of the actual position parameter relative to the target position parameter based on the rotation center parameter O(X0, Y0).

[0108] By calculating the offset of the actual position parameter relative to the target position parameter using the rotation center parameter, the difference between the position of electrode 100 and the target state can be clearly defined. This offset can quantify the degree of positional deviation of electrode 100, providing a specific adjustment basis for subsequent correction operations.

[0109] Specifically, based on the rotation center parameter O(X0, Y0), the offset of the actual position parameter relative to the target position parameter is determined, including:

[0110] The first drive coordinate parameters (X) of the first drive component 410 are obtained through calibration. V Y V ), the second drive coordinate parameters (X) of the second drive component 420 W Y W ) and the third drive coordinate parameters (X) of the third drive unit 430 U Y U );

[0111] According to the first driving coordinate parameter (X) V Y V ), second driving coordinate parameters (X) W Y W ), third driving coordinate parameters (X) U Y U The offset is determined by using the rotation center parameter O(X0, Y0) and rotation center parameter O(X0, Y0).

[0112] The rotation center parameter is key information describing the rotation characteristics of the electrode 100. Combining it with the coordinate parameters of each driving component can fully account for the positional changes of the electrode 100 during translation and rotation.

[0113] Furthermore, according to the first driving coordinate parameter (X) V Y V ), second driving coordinate parameters (X) W YW ), third driving coordinate parameters (X) U Y U ) and rotation center parameters O(X0, Y0), determine the offset, including:

[0114] According to the first driving coordinate parameter (X) V Y V Given the rotation center parameters O(X0, Y0), determine the first offset ΔY1;

[0115] According to the second driving coordinate parameter (X) W Y W Given the rotation center parameters O(X0, Y0), determine the second offset ΔY1;

[0116] According to the third driving coordinate parameter (X) U Y U Using the rotation center parameters O(X0, Y0), the third offset ΔX is determined. Specifically,

[0117]

[0118]

[0119]

[0120] The first offset ΔY1, the second offset ΔY2, and the third offset ΔX are the movement amounts of the first driving member 410, the second driving member 420, and the third driving member 430 of the driving assembly 400. It should be noted that the angle is positive when the electrode 100 rotates counterclockwise and negative when it rotates clockwise.

[0121] S105: Correct the offset of electrode 100 according to the offset amount.

[0122] By correcting the electrode 100 according to the calculated first offset ΔY1, second offset ΔY2, and third offset ΔX, the position and size of the electrode 100 can be made as close as possible to the target requirements. Through precise correction operations, the production quality and consistency of the electrode 100 can be improved, product defects caused by positional deviations of the electrode 100 can be reduced, and production efficiency and product performance can be improved.

[0123] The process of correcting the offset of electrode 100 includes:

[0124] The first driving member 410 moves one side of the electrode 100 along the first direction by a first offset amount ΔY1.

[0125] The second driving element 420 causes the other side of the electrode 100 to move by a second offset ΔY2 along the second direction;

[0126] The third driving element 430 causes the electrode 100 to move by a third offset ΔX along a third direction;

[0127] The first direction is opposite to the second direction and both are perpendicular to the third direction.

[0128] The first drive unit 410, the second drive unit 420, and the third drive unit 430 work together to simultaneously handle the offset of the electrode 100 in different directions, achieving precise correction of the electrode 100's position and enabling it to be accurately adjusted from its actual position to the target position. The simultaneous action of the three drive units moves different parts of the electrode 100 in different directions, and this synchronous multi-directional adjustment method shortens the time required for correction. Compared to the method of sequentially adjusting the electrode 100 in one direction, this method can complete the correction operation in a shorter time, improving production efficiency and making it particularly suitable for large-scale, high-speed production scenarios.

[0129] The first offset ΔY1 and the second offset ΔY2 are both along the Y-axis and in opposite directions, while the third offset ΔX is along the X-axis. Figure 3 R1, R2, and R3 correspond to the rotation radii of the corresponding points of the electrode 100 at the rotation center parameter O (X0, Y0) caused by the first driving member 410, the second driving member 420, and the third driving member 430, respectively.

[0130] Furthermore, in some embodiments, after correcting the electrode 100 according to the offset, the method further includes:

[0131] Obtain the correction dimension parameters and correction position parameters of electrode 100;

[0132] The correction position parameters are compared with the target position parameters to determine whether the correction position parameters are consistent with the target position parameters;

[0133] When the correction position parameters are consistent with the target position parameters, the electrode correction method is completed;

[0134] If the correction position parameters are inaccurate with the target position parameters, repeat the electrode correction method or discard the waste.

[0135] It is understandable that the correction position parameter can be regarded as the new actual position parameter after the electrode is corrected, and the correction size parameter can be regarded as the new actual size parameter after the electrode is corrected. Therefore, the comparison between the correction position parameter and the target position parameter can be understood as the comparison between the diagonal coordinate parameter corresponding to the actual position parameter and the diagonal coordinate parameter corresponding to the target position parameter. When the two sets of diagonal coordinate parameters are consistent, the correction position parameters are considered to be consistent; otherwise, they are inconsistent.

[0136] Obtaining the correction dimension and position parameters of electrode 100 allows for a comprehensive and consistent assessment of its actual state after correction operations. When the correction position parameters are inconsistent, repeating the electrode correction method provides an opportunity to readjust non-compliant electrode 100s to bring them as close to the target position as possible, thereby improving the pass rate of electrode 100. Electrode 100s that fail to meet correction requirements after multiple attempts are promptly discarded to prevent defective products from entering subsequent production stages, further ensuring the quality of the final product and reducing product defects and malfunctions caused by electrode 100 positional deviations.

[0137] Therefore, in the electrode correction method provided in this application embodiment, after obtaining the actual size parameters and actual position parameters of the electrode 100, the actual size parameters can be compared with the target size parameters to accurately determine whether the obtained actual size parameters meet the requirements. This avoids deviations in subsequent offset calculations due to inaccurate size acquisition, preventing a decrease in correction accuracy. Simultaneously, during offset calculation, the rotation center parameter of the actual position parameters needs to be calculated first. Calculating the rotation center parameter based on accurate actual position parameters further enhances its accuracy. Thus, the correction effect of the electrode correction method is improved.

[0138] Furthermore, the offset of electrode 100 can be obtained by calculating the common rotation center between the actual position and the target position of electrode 100. Compared to calculating the offset of electrode 100 by comparing its own geometric center with the geometric center of the target position, this avoids the problem that the accuracy of the calculated offset can decrease if the target position center has errors due to machining errors and assembly deviations of the correction device. Calculating the common rotation center between the actual and target positions comprehensively considers the overall positional changes of electrode 100, reducing the impact of device errors on the offset calculation and making the correction more accurate.

[0139] Furthermore, embodiments of this application provide an electrode correction device, comprising:

[0140] Fixing component 200, used to place electrode 100;

[0141] Image acquisition component 300, used to acquire information from electrode 100;

[0142] Drive component 400 drives electrode 100 to move;

[0143] The controller is electrically connected to the image acquisition component 300 and the drive component 400. The controller is used to acquire the target size parameters and target position parameters, acquire the actual size parameters and actual position parameters through the image acquisition component 300, determine the rotation center parameters and offset, and control the drive component 400 to move the offset.

[0144] The image acquisition component 300 can accurately acquire information from the electrode 100, obtaining its actual size and position parameters. This provides an accurate data foundation for subsequent correction operations, enabling the controller to calculate the rotation center parameters and offset based on this precise data, ensuring accurate correction. The controller compares and analyzes the acquired actual parameters with the preset target size and position parameters, calculates the offset, and then controls the drive component 400 to move the electrode 100 by the corresponding offset. This real-time feedback and adjustment mechanism ensures that the electrode 100 quickly and accurately reaches the target position and size requirements, effectively improving the positional and dimensional accuracy of the electrode 100 during the production process.

[0145] Furthermore, in some embodiments, the electrode correction device can also be used to refer to... Figure 1 , Figure 2 and Figure 5 The electrode 100 is corrected as follows:

[0146] The geometric center P(X) of the actual position parameters is determined by calibration. p Y p The geometric center (0, 0) of the target position parameter determines the rotation radii R4 and R5 required for the first drive 410 and the second drive 420 to correct their alignment.

[0147] Furthermore, the angle β when the electrode 100 rotates to be parallel to the target position is calculated. The calculation methods for sinβ and cosβ are the same as those for sinθ and cosθ, both of which are calculated based on the actual diagonal point parameter coordinates and the target diagonal point parameter coordinates. This application will not elaborate further here.

[0148] Furthermore, the rotational offsets ΔY11 and ΔY12 that the first drive member 410 and the second drive member 420 need to move are calculated.

[0149]

[0150]

[0151] After calculating the rotation offsets ΔY11 and ΔY12, the translation offsets ΔY21, ΔY22 and ΔX2 that the first drive unit 410, the second drive unit 420 and the third drive unit 430 need to move to the target center position after rotation are further calculated.

[0152]

[0153]

[0154]

[0155] Where r is the distance between the geometric center of the actual position parameter and the geometric center of the target position parameter. α is the angle between the line connecting the geometric centers of the actual position parameter and the target position parameter (i.e., the length direction of r) and the X-axis.

[0156]

[0157]

[0158]

[0159] Combine rotation offset and translation offset:

[0160]

[0161]

[0162]

[0163] Thus, when the rotation angle of the actual position parameter of the electrode 100 relative to the target position parameter is small, the offset calculated through the geometric center in this embodiment can be considered. This method is simple to calculate, has a faster response, and can quickly complete the correction. However, when the rotation angle of the actual position parameter of the electrode 100 relative to the target position parameter is large, the offset calculated through the common rotation center of the actual position parameter and the target position parameter in the aforementioned embodiment can be considered. This method has higher correction accuracy and is more precise in correcting the offset.

[0164] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0165] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0166] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0167] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0168] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions 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 invention.

Claims

1. A method for correcting electrode polarization, characterized in that, The electrode correction method includes: Obtain the actual size and position parameters of the electrode (100); The actual size parameters are compared with the target size parameters to determine whether the actual size parameters are accurate. When the actual size parameters are accurate, determine the rotation center parameters of the actual position parameters; Based on the rotation center parameters, determine the offset of the actual position parameters; The electrode (100) is corrected according to the offset.

2. The electrode correction method according to claim 1, characterized in that, The step of comparing the actual size parameters with the target size parameters to determine whether the actual size parameters are accurate includes: The first length parameter and the first width parameter are determined based on the actual size parameters, and the second length parameter and the second width parameter are determined based on the target size parameters; Determine whether the first length parameter and the second length parameter are equal, and determine whether the first width parameter and the second width parameter are equal; When the first length parameter and the second length parameter are equal, and the first width parameter and the second width parameter are equal, the actual size parameter is determined to be accurate; If the first length parameter and the second length parameter are not equal, and / or the first width parameter and the second width parameter are not equal, the actual size parameter is re-acquired and compared with the target size parameter, or waste is discarded.

3. The electrode correction method according to claim 1, characterized in that, Determining the rotation center parameters of the actual position parameters includes: Based on the actual size parameters and the actual position parameters, determine the actual diagonal coordinate parameters of the electrode (100); Based on the target size parameters and target position parameters, determine the target diagonal coordinate parameters of the electrode (100); Based on the actual diagonal point coordinate parameters and the target diagonal point coordinate parameters, the rotation center parameter that is common to the actual position parameters relative to the target position parameters is determined.

4. The electrode correction method according to claim 3, characterized in that, The step of determining the common rotation center parameter of the actual position parameters relative to the target position parameters based on the actual diagonal point coordinate parameters and the target diagonal point coordinate parameters includes: The rotation angle of the actual position parameter relative to the target position parameter is determined based on the actual diagonal point coordinate parameters and the target diagonal point coordinate parameters. The rotation center parameters are determined based on the rotation angle, the actual diagonal point coordinate parameters, and the target diagonal point coordinate parameters.

5. The electrode correction method according to claim 1, characterized in that, Determining the offset of the actual position parameter relative to the target position parameter based on the rotation center parameter includes: The first drive coordinate parameters of the first drive unit (410), the second drive coordinate parameters of the second drive unit (420), and the third drive coordinate parameters of the third drive unit (430) are obtained through calibration. The offset is determined based on the first driving coordinate parameters, the second driving coordinate parameters, the third driving coordinate parameters, and the rotation center parameters.

6. The electrode correction method according to claim 5, characterized in that, Determining the offset based on the first drive coordinate parameters, the second drive coordinate parameters, the third drive coordinate parameters, and the rotation center parameters includes: The first offset is determined based on the first driving coordinate parameters and the rotation center parameters; The second offset is determined based on the second driving coordinate parameters and the rotation center parameters; The third offset is determined based on the third driving coordinate parameters and the rotation center parameters.

7. The electrode correction method according to claim 6, characterized in that, The step of correcting the electrode (100) based on the offset includes: The first driving member (410) moves one side of the electrode (100) by the first offset amount along the first direction; The second drive member (420) moves the other side of the electrode (100) by the second offset amount along the second direction; The third drive (430) moves the electrode (100) by the third offset in a third direction; The first direction is opposite to the second direction and both are perpendicular to the third direction.

8. The electrode correction method according to any one of claims 1-7, characterized in that, After obtaining the actual size parameters and actual position parameters of the electrode (100), the method further includes: The target size parameters and target position parameters of the corresponding electrode (100) are obtained through calibration.

9. The electrode correction method according to any one of claims 1-7, characterized in that, After correcting the electrode (100) according to the offset, the method further includes: Obtain the correction dimension parameters and correction position parameters of the electrode (100); The correction position parameters are compared with the target position parameters to determine whether the correction position parameters are consistent with the target position parameters; When the correction position parameters are consistent with the target position parameters, the electrode correction method is completed. If the correction position parameter is inconsistent with the target position parameter, repeat the electrode correction method or discard the waste.

10. An electrode correction device, characterized in that, The electrode correction device for the electrode correction method according to any one of claims 1-9 comprises: Fixing component (200) for placing electrode (100); An image acquisition component (300) is used to acquire information about the electrode (100); A drive assembly (400) drives the electrode (100) to move; The controller is electrically connected to the image acquisition component (300) and the drive component (400). The controller is used to acquire target size parameters and target position parameters, acquire actual size parameters and actual position parameters through the image acquisition component (300), determine rotation center parameters and offset, and control the drive component (400) to move the offset.

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