Pole piece lamination deviation rectification method and system

Abstract

The invention discloses a pole piece lamination deviation rectification method and system, and relates to the technical field of energy storage batteries, and the method comprises the steps: S100, obtaining the position of a lamination table, and determining the preset standard position of a pole piece on a deviation rectification table; s200, acquiring a preset distance between the range finder and the pole piece at the preset standard position of the pole piece; s300, the actual distance between the distance measuring instrument and the pole piece arranged on the deviation correcting table is obtained; s400, according to the actual distance and the preset distance, the deviation rectifying table is driven to move so that the pole piece can move till the distance between the pole piece and the distance meter is equal to the preset distance; and S500, executing a pole piece lamination process. The preset standard position and the actual position of the pole piece on the deviation rectifying table are obtained through the distance measuring instrument, the deviation rectifying table is directly moved, so that the pole piece reaches the required lamination position, the edge grabbing error of the pole piece is avoided, the lamination effect is better, the accuracy is higher, and the pole pieces of various specifications can be effectively laminated.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage batteries, and in particular to a method and system for correcting deviation of pole piece stacking. Background Art

[0002] At present, most automotive power batteries use a stacking fast charging system, which has high requirements for battery consistency, especially the alignment of positive and negative electrodes. Due to the material problems of the positive and negative electrodes, in order to prevent the electrodes from rubbing in the clip and causing powder loss and damage, 3~5mm of space needs to be reserved around the electrodes in the clip. Therefore, during the stacking process, the position of the electrodes placed on the correction table has a small deviation in the up and down, left and right, and angle compared to the preset standard stacking position. The electrodes need to be corrected and aligned before stacking.

[0003] At present, the production line uses an adjustment method that uses a CCD camera to compare the edge of the pole piece / ceramic area, the system calculates the deviation position, and finally moves the pole piece to the required stacking position through a motor. For example, the Chinese patent invention patent CN116666725A provides a battery stacking correction process, which involves the field of battery manufacturing technology, to a certain extent, solves the problem that the CCD camera is affected by the environment and causes misjudgment, and the pole piece is misplaced and leaks black after correction, causing the positive and negative pole pieces to short-circuit and catch fire. The battery stacking correction process provided by the above invention includes the following steps: Step 1, take a photo to determine the position of the pole piece, and obtain the offset position and offset of the pole piece; Step 2, determine the right angle of each vertex of the pole piece; Step 3, if the angle of the edge is judged to be qualified, then perform correction adjustment according to the offset and offset position; Step 4, re-check and take a photo to compare the reference position, if there is an offset, the pole piece is removed, and if it is qualified, the pole piece is output for stacking.

[0004] However, due to the state of the incoming electrode material and the material characteristics, it is easy to stack unevenly during the stacking process, and the edge grabbing abnormality leads to misjudgment of waste discharge. For example, due to the material system problems of the positive electrode and aluminum foil, the CCD camera adjusts the exposure value to the maximum value, and the material area and foil are still prone to reflection, which finally leads to inaccurate edge grabbing calculation offset value, uneven stacking or misjudgment of waste discharge. In order to ensure the high rate and less waste discharge, the material size range is set wider, which is prone to missed killing; the negative electrode is soft, and the electrode and copper foil edges are prone to warping due to the incoming material state, resulting in inaccurate edge grabbing calculation offset value.

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

[0006] The present invention provides a method for correcting the lamination of pole pieces. The preset standard position and the actual position of the pole piece on the correction table are obtained by a rangefinder, and the correction table is directly moved so that the pole piece reaches the required lamination position. No pole piece correction error or missed pole piece occurs, the lamination uniformity is better, the accuracy is higher, and pole pieces of various specifications can be effectively laminated.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, an embodiment of the present application provides a method for correcting deviation of a pole piece stack, the method comprising: S100: obtaining the position of the lamination table from the position sensor, and determining the preset standard position of the pole piece on the deviation correction table; S200: Acquiring a preset distance between a distance meter on the side of the deflection correction platform and a pole piece located at a preset standard position of the pole piece; S300: obtaining the actual distance between the distance meter and the pole piece placed on the deviation correction table; S400: According to the actual distance and the preset distance, the deflection correction platform is driven to move so that the pole piece is displaced until the distance between the pole piece and the distance meter is equal to the preset distance; S500: Execute the pole piece stacking process.

[0008] As a preferred embodiment of the present invention, the distance meter is extended toward the side of the non-ear end of the pole piece, and the distance meter includes an end distance meter for obtaining the distance to the end of the pole piece and an edge distance meter for obtaining the distance to the edge of the pole piece; When executing step S200, the distance between the end distance meter and the end of the pole piece located at the preset standard position of the pole piece, and the distance between the edge distance meter and the edge of the pole piece located at the preset standard position of the pole piece are obtained, which are recorded as the preset end distance and the preset edge distance; When executing step S300, the distance between the end distance meter and the end of the pole piece placed on the deflection correction table, and the distance between the edge distance meter and the edge of the pole piece placed on the deflection correction table are obtained, which are recorded as the actual end distance and the actual edge distance.

[0009] As a preferred embodiment of the present invention, when executing step S400, it specifically includes: S401: calculating the pole piece deflection angle, left-right offset distance, and front-back offset distance through the preset end distance, the preset edge distance, the actual end distance, and the actual edge distance; S402: driving the deflection correction platform to rotate the pole piece deflection angle; S403: driving the deflection correction platform to move in the left-right direction by a left-right offset distance, and in the front-back direction by a front-back offset distance.

[0010] As a preferred embodiment of the present invention, after executing step S403, further executing: S404: Determine whether the distance to the pole piece is the preset end distance and the preset edge distance, if so, execute step S500; otherwise, issue an alarm.

[0011] As a preferred embodiment of the present invention, when executing step S300, when a pole piece is placed on the deflection correction table, the pole piece is adsorbed and fixed on the deflection correction table through a negative pressure suction hole; When step S500 is executed, the negative pressure suction hole stops adsorbing and fixing the electrode sheet, and the output component outputs the electrode sheet to the lamination table to complete the lamination.

[0012] As a preferred embodiment of the present invention, the step of obtaining the position of the lamination table and determining the preset standard position of the pole piece on the deviation correction table includes: Get the stacking table position; The preset standard position of the positive electrode sheet on the deflection correction table is obtained according to the stacking position of the positive electrode sheet in the stacking table, and the preset standard position of the negative electrode sheet on the deflection correction table is obtained according to the stacking position of the negative electrode sheet in the stacking table.

[0013] As a preferred embodiment of the present invention, when executing step S100, the initial position of the deflection correction platform is obtained; After executing step S500, the deflection correction platform is driven to move and return to the initial position of the deflection correction platform.

[0014] In a second aspect, an embodiment of the present application provides a pole piece stacking correction system, the system comprising: Standard location determination module; Preset distance acquisition module; Actual distance acquisition module; Correction execution module; Pole piece stacking module; The standard position determination module obtains the position of the stacking table from the position sensor and determines the preset standard position of the pole piece on the deflection correction table; the preset distance acquisition module obtains the preset distance between the distance meter on the side of the deflection correction table and the pole piece located at the preset standard position of the pole piece; the actual distance acquisition module obtains the actual distance between the distance meter and the pole piece placed on the deflection correction table; the deflection correction execution module drives the deflection correction table to move according to the actual distance and the preset distance so that the pole piece is displaced until the distance between the pole piece and the distance meter is equal to the preset distance; the pole piece stacking module executes the pole piece stacking process.

[0015] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method provided in any possible implementation manner of the first aspect is implemented.

[0016] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the method provided in any possible implementation manner of the first aspect is implemented.

[0017] The beneficial effects of the pole piece stacking correction method and system of the present invention are as follows: the preset standard position and actual position of the pole piece on the correction table are obtained by a rangefinder, and the correction table is directly moved so that the pole piece reaches the required stacking position, and no pole piece correction error or missed position occurs, the stacking uniformity is better, the accuracy is higher, and pole pieces of various specifications can be effectively stacked. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a process flow of a pole piece lamination correction method provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of obtaining a preset standard position of a pole piece in a pole piece stacking correction method provided in an embodiment of the present application; Figure 3 A schematic diagram of a structure for obtaining the actual distance from a pole piece in a pole piece stacking correction method provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a correction platform when adjusting forward, backward, left and right in a pole piece stacking correction method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0021] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, although the embodiment may not be clearly recorded in the following text.

[0022] 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 functions and arrangements of the elements described without departing from the scope of the present application. Various processes or components may be appropriately omitted, substituted or added to each example. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted or combined. In addition, features described in some examples may be combined in other examples.

[0023] Example 1: See Figures 1 to 4 , Figure 1 It is a flow chart of a method for correcting the deviation of a pole piece stack provided in an embodiment of the present application. In an embodiment of the present application, a method for correcting the deviation of a pole piece stack is provided, and a controller is used to execute the correction algorithm for the pole piece stack. The controller is a stacking control system, and components such as a position sensor, a rangefinder, and a correction table drive motor are added to the stacking control system. The controller controls each component, obtains and processes component data, and finally performs the stacking correction operation of the present application. The method includes: S100: obtaining the position of the lamination table from the position sensor, and determining the preset standard position of the pole piece on the deviation correction table; Generally speaking, the stacking table is located directly below or obliquely below the deflection correction table. According to different pole piece specifications and the stacking table model and position, the best pole piece placement position on the deflection correction table can be obtained, which is recorded as the pole piece preset standard position on the deflection correction table. When the pole piece is in the preset standard position, Figure 2 As shown, the pole pieces on the deviation correction table can be output to the lamination table for lamination.

[0024] There are multiple position sensors, which can obtain the position of the stacking table in various directions, thereby confirming the position information of the stacking table and sending it to the controller.

[0025] S200: Acquiring a preset distance between a distance meter on the side of the deflection correction platform and a pole piece located at a preset standard position of the pole piece; Here, a grabbing head is needed to grab a pole piece and place it in the preset standard position. Then, the distance meter on the side of the correction table is used to obtain the preset distance from the pole piece at the preset standard position. The distance meter sends its measured distance data to the controller.

[0026] It should be noted that the distance meter is extended toward the side of the non-ear end of the pole piece, that is, the thickness of the pole piece ranges from 100 to 200 μm, so that the distance meter measures the distance to the thickness side of the pole piece; and the distance meter needs to avoid the ear side of the pole piece to prevent damage to the ear part; Preferably, the distance meter is arranged to extend toward the bending corner of the non-ear end of the pole piece.

[0027] Furthermore, the distance meter includes an edge distance meter for obtaining the distance to the edge of the pole piece and an end distance meter for obtaining the distance to the end of the pole piece; When executing step S200, the distance between the end distance meter and the end of the pole piece located at the preset standard position of the pole piece, and the distance between the edge distance meter and the edge of the pole piece located at the preset standard position of the pole piece are obtained, which are recorded as the preset end distance and the preset edge distance; like Figure 2 As shown, the rangefinder A1 is located at the edge of the pole piece non-ear end, that is, the edge rangefinder, and the distance between it and the edge of the pole piece is the preset edge distance D1; the rangefinder A2 is located at the end of the pole piece non-ear end, that is, the end rangefinder, and the distance between it and the end of the pole piece is the preset end distance D2.

[0028] S300: obtaining the actual distance between the distance meter and the pole piece placed on the deviation correction table; When a pole piece is placed on the correction table, correction is required because the pole piece is very thin and there is a placement error. At this time, the actual distance between the distance meter and the thickness side of the pole ear is obtained again.

[0029] When executing step S300, the distance L2 between the end distance meter and the end of the pole piece placed on the deflection correction table, and the distance L1 between the edge distance meter and the edge of the pole piece placed on the deflection correction table are obtained, and recorded as the actual end distance and the actual edge distance, such as Figure 3 shown.

[0030] S400: According to the actual distance and the preset distance, the deflection correction platform is driven to move so that the pole piece is displaced until the distance between the pole piece and the distance meter is equal to the preset distance; Here, the driving source of the deflection correction table is a driving motor, and the controller controls the driving motor to work, thereby driving the deflection correction table to move.

[0031] When executing step S400, it specifically includes: S401: Calculate the pole piece deflection angle ( Figure 3 Angle α in), left and right offset distance ( Figure 4 C1 in) and the front and rear offset distance ( Figure 4 C2 in ); S402: driving the deflection correction platform by a motor to rotate the pole piece deflection angle; S403: driving the deflection correction platform by a motor to move the deflection correction platform in the left-right direction by a left-right offset distance, and in the front-back direction by a front-back offset distance.

[0032] Of course, after executing step S403, it is also executed. S404: Determine whether the distance to the pole piece is the preset end distance and the preset edge distance. If so, execute step S500; otherwise, there is a pole piece structure error, equipment error, or other external interference, a first-level alarm is issued, and return to step S300 to perform correction again. If the correction cannot be completed after the preset number of times, a second-level alarm is issued.

[0033] S500: Execute the electrode stacking process, that is, the output unit in the stacking output system outputs the electrode to the stacking table to complete the stacking.

[0034] After the pole piece is corrected by moving the correcting table, the pole piece reaches the ideal position. At this time, the pole piece is output from the correcting table to the stacking table to complete the stacking.

[0035] Embodiment 2: It is only one of the embodiments of the present invention. On the basis of embodiment 1, in the present invention, after executing step S500, it is determined whether the number of stacking sheets reaches the preset number. If so, the stacking is completed. Otherwise, it returns to step S300 to perform stacking correction for the next pole piece.

[0036] In the present invention, when executing step S300, when a pole piece is placed on the deflection correction table, the pole piece is adsorbed and fixed on the deflection correction table through the negative pressure suction hole; when executing step S500, the negative pressure suction hole stops adsorbing and fixing the pole piece, and the output component outputs the pole piece to the stacking table to complete the stacking.

[0037] That is to say, after the electrode piece is placed on the deflection correction table, the negative pressure suction hole opened on the deflection correction table uses negative pressure to adsorb the electrode piece on the deflection correction table, thereby preventing relative displacement between the electrode piece and the deflection correction table, thereby avoiding the influence of equipment vibration and airflow on blowing the electrode piece, and effectively ensuring that the electrode piece effectively follows the displacement when the deflection correction table drives the displacement adjustment; when the mobile deflection correction table completes the pole piece correction, the pole piece reaches the ideal position, at which time the negative pressure suction hole no longer generates negative pressure, the pole piece is released, and output to the stacking table for stacking.

[0038] In addition, after executing step S500, 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 pole piece is completed, the correction table also needs to return to the initial position to facilitate the placement of the next pole piece.

[0039] There are two ways to implement this: First, when executing step S100, the position sensor obtains the initial position of the deflection correction platform, that is, records the initial state of the deflection correction platform and sends it to the controller; and after executing step S500, the motor drives the deflection correction platform to move and restore to the initial position of the deflection correction platform; The second method is that when executing step S400, the position sensor obtains the displacement trajectory of the deflection correction table; and after executing step S500, the motor drives the deflection correction table to move in the opposite direction of the displacement trajectory of the deflection correction table to restore to the initial position of the deflection correction table.

[0040] It should be noted that, since the position of the rangefinder does not change during the pole piece correction process, the preset standard position of the pole piece and the distance value of the rangefinder are not necessarily related to the position of the correction table. In fact, after executing step S500, it is not necessary for the correction table to move back to its initial position. However, a boundary line of the preset standard position of the pole piece is drawn on the correction table. In order to facilitate the reference of this boundary line when placing the pole piece, and to avoid the correction table from deviating too far from the stacking table after multiple displacements, it is best to restore the correction table to its original position after each stacking of a pole piece.

[0041] Embodiment 3: It is only one of the embodiments of the present invention. On the basis of any of the above embodiments, in the present invention, when executing step S100, the obtaining of the stacking table position and determining the preset standard position of the electrode sheet on the deflection correction table includes: obtaining the stacking table position, obtaining the preset standard position of the positive electrode sheet on the deflection correction table according to the stacking position of the positive electrode sheet in the stacking table, and obtaining the preset standard position of the negative electrode sheet on the deflection correction table according to the stacking position of the negative electrode sheet in the stacking table; The rangefinder comprises a positive rangefinder and a negative rangefinder. The positive rangefinder is arranged at the non-ear end of the positive electrode sheet, and the negative rangefinder is arranged at the non-ear end of the negative electrode sheet.

[0042] When executing step S200, the positive electrode distance meter on the side of the deflection correction table obtains the positive electrode preset distance from the positive electrode sheet located at the preset standard position of the positive electrode sheet; the negative electrode distance meter on the side of the deflection correction table obtains the positive electrode preset distance from the negative electrode sheet located at the preset standard position of the negative electrode sheet; When executing step S300, when a pole piece is placed on the deflection correction table, it is determined whether the pole piece is a positive pole piece. If so, the positive pole distance meter obtains the actual positive pole distance from the positive pole piece, and step S400' is executed; otherwise, the negative pole distance meter obtains the actual negative pole distance from the negative pole piece, and step S400'' is executed; S400': driving the deflection correction platform to move the positive electrode sheet according to the actual distance of the positive electrode and the preset distance of the positive electrode, until the distance between the positive electrode sheet and the positive electrode distance meter is equal to the preset distance of the positive electrode; S400''; According to the actual distance of the negative electrode and the preset distance of the negative electrode, the deflection correction platform is driven to move so that the negative electrode sheet is displaced until the distance between the negative electrode sheet and the negative electrode distance meter is equal to the preset distance of the negative electrode.

[0043] Embodiment 4: This is only one of the embodiments of the present invention. Based on any of the above embodiments, in the present invention, the rangefinder is a laser rangefinder, and the diameter of the laser it emits is not more than 50μm. Then the laser is emitted to a pole piece with a thickness of 100~200μm, and the distance between the pole piece and the rangefinder is calculated by the diffusely reflected laser.

[0044] Of course, the laser frequency emitted by each laser rangefinder is different, so that only the laser rangefinder can receive the laser of its own frequency, and the pole piece tilt will not cause one laser rangefinder to obtain the laser emitted and reflected by another laser rangefinder; or multiple laser rangefinders emit lasers in different time periods to avoid interference between the lasers emitted by multiple rangefinders.

[0045] The correction of a pole piece requires four distance meters, namely two edge distance meters and two end distance meters, such as Figure 2 As shown, A1 and A4 are edge distance meters, facing the side of the non-ear end of the pole tab away from the end of the pole tab; A2 and A3 are end distance meters, facing the left and right end points of the end surface of the non-ear end of the pole piece. In short, the non-ear end of the pole tab has two bending angles, and the four distance meters face the four thickness side surfaces of the two bending angles.

[0046] The direction of the laser emitted by the rangefinder is parallel to the surface of the pole piece, that is, the laser is perpendicular to the thickness side surface of the pole piece.

[0047] When executing step S401, the pole piece deflection angle ( Figure 3 Angle α in), left and right offset distance ( Figure 4 C1 in) and the front and rear offset distance ( Figure 4 C2 in ); Specifically, when the pole piece is located at the preset standard position of the pole piece, the four distance meters obtain the preset distances D1, D2, D3 and D4. When the pole piece is placed on the correction table for correction, the four distance meters obtain the actual distances L1, L2, L3 and L4. The pole piece deflection angle α can be calculated by trigonometric function. At this time, tanα=(L1-D1) / (L2-D2), that is, the pole piece deflection angle α=arctan((L1-D1) / (L2-D2)); and according to the size of L2 and L3, if L2 is greater than L3, then the correction table rotates clockwise by angle α; conversely, if L2 is less than L3, then the correction table rotates counterclockwise by angle α; Then, let the rotation center point O of the correction platform be the coordinate center, and the center point of the preset standard position of the pole piece is also O; and when the pole piece is at the preset standard position of the pole piece, the distances from the center point O to the long side and short side of the pole piece are p and q respectively, so that D1=D4, D2=D3: The coordinates of the four rangefinders are (-p-D1,-q), (-p,-q- D2), (p, -q- D2) and (p+D1,-q); The pole piece is placed on the deflection correction table, and the intersection points of the vertical lines from O to the long and short sides of the pole piece are V and H. Before the deflection correction table rotates, the coordinates of the intersection points a, b, c and d of the lasers emitted by P1, P2, P3 and P4 with the pole piece are: (L1-p-P1, -q), (-p, L2-q-D2), (p, L3-q- D2) and (p+D1-L4,-q); According to the coordinates of a and b, we can know the equation of the long side of the pole piece on the coordinate axis: y long = ((L2-D2) / (D1-L1))*(x+ p+D1-L1) -q; similarly, the equation of the short side of the pole piece on the coordinate axis is y short = ((D2-L3) / (D4-L4))*(xp-D1+D4)+L3- q-D2; The vertical distance from the rotation center to the long / short edge of the pole piece can be calculated: ; ; Since D1=D4, D2=D3, then: ; Finally, the left and right offset of the pole piece C1 = p -|OV| is calculated. If C1>0, it is offset to the right by C1, and if C1<0, it is offset to the left by |C1|. Similarly, the up and down offset of the pole piece C2 = q -|OH| is calculated. If C2>0, it is offset upward by C2, and if C2<0, it is offset downward by |C2|.

[0048] Then, step S402 is executed to drive the deflection correction table to rotate by an angle of arctan((L1-D1) / (L2-D2)) through the motor. Step S403 is executed to drive the deflection correction table to move p-|OV| in the left-right direction and q-|OH| in the front-back direction through the motor.

[0049] The present invention obtains the preset standard position and actual position of the pole piece on the correction table through a rangefinder, and directly moves the correction table to make the pole piece reach the required stacking position. No pole piece correction error or missed pole piece will occur, the stacking uniformity is better, the accuracy is higher, and pole pieces of various specifications can be effectively stacked.

[0050] Embodiment 5, the embodiment of the present application provides a pole piece stacking correction system, the system comprising: Standard location determination module; Preset distance acquisition module; Actual distance acquisition module; Correction execution module; Pole piece stacking module; The standard position determination module obtains the position of the stacking table from the position sensor and determines the preset standard position of the pole piece on the deflection correction table; the preset distance acquisition module obtains the preset distance between the distance meter on the side of the deflection correction table and the pole piece located at the preset standard position of the pole piece; the actual distance acquisition module obtains the actual distance between the distance meter and the pole piece placed on the deflection correction table; the deflection correction execution module drives the deflection correction table to move according to the actual distance and the preset distance so that the pole piece is displaced until the distance between the pole piece and the distance meter is equal to the preset distance; the pole piece stacking module executes the pole piece stacking process.

[0051] Those skilled in the art can clearly understand that the technical solutions of the embodiments of the present application can be implemented with the help of software and / or hardware. The "unit" and "module" in this specification refer to software and / or hardware that can independently complete or cooperate with other components to complete specific functions, where the hardware can be, for example, a field programmable gate array (FPGA), an integrated circuit (IC), etc.

[0052] It can be understood that the system provided in the embodiments of the present invention is applicable to any of the methods described in embodiments one to four, and the specific functions of each module can refer to the above method flow, which will not be repeated here.

[0053] Embodiment 6, an electronic device provided by the embodiment of the present invention is used to implement any of the methods described in embodiments 1 to 4. The electronic device may include: at least one central processor, at least one network interface, a control interface, a memory, and at least one communication bus.

[0054] Among them, the communication bus is used to realize the connection, communication and information exchange between various components.

[0055] The network interface may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0056] Among them, the control interface is used to output control operations according to instructions.

[0057] The central processing unit may include one or more processing cores. The central processing unit uses various interfaces and lines to connect various parts in the entire terminal, and executes various functions of the terminal and processes data according to any one of the methods described in embodiments 1 to 4 by running or executing instructions, programs, code sets or instruction sets stored in the memory, and calling data stored in the memory.

[0058] The memory may include a random access memory (RAM) or a read-only memory (ROM). Optionally, the memory includes a non-transitory computer-readable storage medium. The memory may be used to store instructions, programs, codes, 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 a touch function, a sound playback function, an image playback function, etc.), and methods for implementing any one of the above embodiments 1 to 4; the data storage area may store data involved in each of the above method embodiments, etc.

[0059] The present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method described in any one of the above embodiments 1 to 4 is implemented. The computer-readable storage medium may include, but is not limited to, any type of disk, including a floppy disk, an optical disk, a DVD, a CD-ROM, a micro drive, and a magneto-optical disk, a ROM, a RAM, an EPROM, an EEPROM, a DRAM, a VRAM, a flash memory device, a magnetic card or an optical card, a nanosystem (including a molecular memory IC), or any type of medium or device suitable for storing instructions and / or data.

[0060] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0061] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] In the several embodiments provided by the present invention, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0063] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware or in the form of software functional units.

[0064] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present 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. The computer software product is stored in a memory, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, disk or optical disk, etc., various media that can store program codes.

[0065] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by entering a program to instruct related hardware, and the program may be stored in a computer-readable memory, which may include a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0067] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation modes, and it cannot be determined that the specific embodiments of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A method for correcting the deviation of pole piece lamination, characterized in that: include: S100: obtaining the position of the lamination table from the position sensor, and determining the preset standard position of the pole piece on the deviation correction table; S200: Acquiring a preset distance between a distance meter on the side of the deflection correction platform and a pole piece located at a preset standard position of the pole piece; S300: obtaining the actual distance between the distance meter and the pole piece placed on the deviation correction table; S4 00: According to the actual distance and the preset distance, the deflection correction platform is driven to move so that the pole piece is displaced until the distance between the pole piece and the distance meter is equal to the preset distance; S500: Execute the pole piece stacking process.

2. A method for correcting deviation of pole piece lamination according to claim 1, characterized in that: The distance meter is extended toward the side of the non-ear end of the pole piece, and the distance meter includes an end distance meter for obtaining the distance to the end of the pole piece and an edge distance meter for obtaining the distance to the edge of the pole piece; When executing step S200, the distance between the end distance meter and the end of the pole piece located at the preset standard position of the pole piece, and the distance between the edge distance meter and the edge of the pole piece located at the preset standard position of the pole piece are obtained, which are recorded as the preset end distance and the preset edge distance; When executing step S300, the distance between the end distance meter and the end of the pole piece placed on the deflection correction table, and the distance between the edge distance meter and the edge of the pole piece placed on the deflection correction table are obtained, which are recorded as the actual end distance and the actual edge distance.

3. A method for correcting deviation of pole piece lamination according to claim 2, characterized in that: When executing step S400, it specifically includes: S401: calculating the pole piece deflection angle, left-right offset distance, and front-back offset distance through the preset end distance, the preset edge distance, the actual end distance, and the actual edge distance; S402: driving the deflection correction platform to rotate the pole piece deflection angle; S403: driving the deflection correction platform to move in the left-right direction by a left-right offset distance, and in the front-back direction by a front-back offset distance.

4. A method for correcting deviation of pole piece lamination according to claim 3, characterized in that: After executing step S403, further execute: S404: Determine whether the distance to the pole piece is the preset end distance and the preset edge distance, if so, execute step S500; otherwise, issue an alarm.

5. A method for correcting deviation of pole piece lamination according to claim 1, characterized in that: When executing step S300, when a pole piece is placed on the deflection correction table, the pole piece is adsorbed and fixed on the deflection correction table through the negative pressure suction hole; When step S500 is executed, the negative pressure suction hole stops adsorbing and fixing the electrode sheet, and the output component outputs the electrode sheet to the lamination table to complete the lamination.

6. A method for correcting deviation of pole piece lamination according to claim 1, characterized in that: The obtaining of the position of the lamination table and determining the preset standard position of the pole piece on the deviation correction table comprises: Get the stacking table position; The preset standard position of the positive electrode sheet on the deflection correction table is obtained according to the stacking position of the positive electrode sheet in the stacking table, and the preset standard position of the negative electrode sheet on the deflection correction table is obtained according to the stacking position of the negative electrode sheet in the stacking table.

7. A method for correcting deviation of pole piece lamination according to claim 1, characterized in that: When executing step S100, the initial position of the deflection correction platform is obtained; After executing step S500, the deflection correction platform is driven to move and return to the initial position of the deflection correction platform.

8. A pole piece stacking correction system, characterized in that: include: Standard location determination module; Preset distance acquisition module; Actual distance acquisition module; Correction execution module; Pole piece stacking module; The standard position determination module obtains the position of the lamination table from the position sensor and determines the preset standard position of the pole piece on the deviation correction table; The preset distance acquisition module acquires the preset distance between the distance meter on the side of the correction table and the pole piece located at the preset standard position of the pole piece; the actual distance acquisition module acquires the actual distance between the distance meter and the pole piece placed on the correction table; the correction execution module drives the correction table to move according to the actual distance and the preset distance so that the pole piece is displaced until the distance between the pole piece and the distance meter is equal to the preset distance; The pole piece stacking module executes the pole piece stacking process.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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