Tab forming device, tab forming method, electronic device, and storage medium

Abstract

Disclosed in the present application are a tab forming device, a tab forming method, an electronic device, and a storage medium. The tab forming device comprises: an electrode sheet conveying mechanism, which is configured to convey an electrode sheet; an electrode sheet fixing mechanism, which is configured to fix the electrode sheet; a laser, which is configured to emit laser beams to cut the electrode sheet; a plurality of rangefinders, which are arranged between the electrode sheet conveying mechanism and the laser in a belt travel direction of the electrode sheet, and are each configured to measure electrode-sheet distances between different positions of the electrode sheet and the corresponding rangefinder; and an upper computer, which is connected to the electrode sheet fixing mechanism, the plurality of rangefinders and the laser, and is configured to determine, from the electrode sheet fixing mechanism and the laser and on the basis of the electrode-sheet distances, a component to be adjusted, and to adjust the component to be adjusted, such that the laser beams are focused on the electrode sheet.

Description

Tab forming equipment, tab forming method, electronic device and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410147668.2, filed on February 1, 2024, entitled “Tab forming equipment, tab forming method, electronic device and storage medium,” and the entire contents of that application are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of tab forming technology, and in particular to a tab forming device, a tab forming method, an electronic device, and a storage medium. Background Art

[0004] Tab forming is the process of shearing the pole piece to form the tab to the preset dimensions. If wrinkles or ripples occur in the pole piece during the tab forming process, the laser beam emitted by the laser will be defocused, resulting in quality issues such as burrs and flashes on the tab, which in turn reduces the safety performance of the battery.

[0005] Summary of the Invention

[0006] The present application provides a tab forming device, a tab forming method, an electronic device and a storage medium, which can avoid quality problems such as tab burrs and other quality problems, improve the quality of tab forming, and thus improve the safety performance of the battery.

[0007] In the first aspect, the present application provides a tab forming device, comprising: a pole piece conveying mechanism, configured to convey the pole piece; a pole piece fixing mechanism, configured to fix the pole piece; a laser, configured to emit a laser beam to cut the pole piece; a plurality of distance meters, arranged between the pole piece conveying mechanism and the laser along the pole piece walking direction, configured to detect the pole piece distance between different positions of the pole piece and the corresponding distance meters; a host computer, connected to the pole piece fixing mechanism, the plurality of distance meters, and the laser, configured to determine the component to be adjusted from the pole piece fixing mechanism and the laser according to the pole piece distance, and adjust the component to be adjusted so that the laser beam is focused on the pole piece.

[0008] As can be seen from the above, in the present application, the distance between the pole piece and the distance meter can reflect the surface state of the pole piece. Therefore, by focusing the laser beam in real time according to the distance between the pole pieces, the problem of laser beam defocusing due to wrinkles, jitters, etc. of the pole piece can be avoided, and the problem of burrs and burrs in the tab formation can be avoided. In addition, in the embodiment of the present application, the component to be adjusted for focusing the laser beam is determined according to the distance between the pole pieces, that is, under different surface conditions, the optimal component to be adjusted is used to focus the laser beam, which can improve the accuracy of laser beam focusing, thereby avoiding quality problems such as burrs and burrs of the tab, improving the quality of the tab formation, and thus improving the safety performance of the battery.

[0009] In some embodiments, the laser and the plurality of rangefinders are disposed on different sides of the pole piece fixing mechanism.

[0010] By placing the laser and the rangefinder on different sides of the pole piece fixing mechanism, the problem of low laser cutting accuracy caused by the rangefinder occupying the laser's working space can be avoided, thereby improving the quality of the pole tab forming and improving the safety performance of the battery.

[0011] In some embodiments, the acquisition frequency of the multiple rangefinders is greater than or equal to 50 KHz.

[0012] By using a rangefinder with a higher acquisition frequency, the risk of missed detection can be avoided, the distance detection accuracy can be improved, and the laser beam can be focused on the pole piece, avoiding the problems of burrs and burrs caused by the forming of the pole tab.

[0013] In some embodiments, the detection positions of the multiple rangefinders on the pole piece are within the blank area of ​​the pole piece, wherein the pole piece includes a coating area and a blank area arranged along the width direction.

[0014] In the embodiment of the present application, the distance meter detects the distance between the tab and the distance meter, which can reflect the surface state of the tab. Then, the component to be adjusted can be adjusted according to the distance to focus the laser beam on the tab, so as to ensure the accuracy of the tab cutting and avoid the generation of burrs and flares on the tab.

[0015] In some embodiments, the horizontal spacing between the detection positions of the multiple rangefinders on the blank area and the coating area is a first spacing, the width of the blank area is a second spacing, and the ratio between the first spacing and the second spacing is greater than or equal to 50%.

[0016] By using a rangefinder to detect the distance between the outer area of ​​the tab and the rangefinder, the surface condition of the tab can be determined more accurately, and then the laser or pole piece fixing mechanism can be adjusted according to the surface condition of the tab to avoid the generation of burrs and burrs during the tab cutting process.

[0017] In some embodiments, the pole piece fixing mechanism includes: a negative pressure adsorption mechanism, configured to adjust the position of the pole piece in the vertical direction; a horizontal adsorption belt, configured to adjust the position of the pole piece in the first horizontal direction; and a side suction mechanism, configured to adjust the position of the pole piece in the second horizontal direction, wherein the first horizontal direction and the second horizontal direction are perpendicular to each other.

[0018] By setting up a pole piece fixing mechanism, the pole piece position can be adjusted so that the laser beam can be focused on the pole piece, thereby avoiding the generation of burrs and burrs on the pole ear.

[0019] In some embodiments, the host computer performs linear fitting on the pole piece distance to obtain a fitting surface that characterizes the surface state of the pole piece; the real-time laser focal depth corresponding to the laser is determined based on the fitting surface, and based on the difference between the real-time laser focal depth and the reference laser focal depth, the component to be adjusted is determined from the pole piece fixing mechanism and the laser, and the component to be adjusted is adjusted so that the laser beam is focused on the pole piece.

[0020] By determining the component to be adjusted for focusing the laser beam based on the pole piece distance, that is, using the best component to be adjusted to focus the laser beam under different surface conditions, the accuracy of laser beam focusing can be improved, thereby avoiding quality problems such as burrs and burrs on the pole tabs, improving the quality of the pole tab forming, and thereby improving the safety performance of the battery.

[0021] In the second aspect, the present application also provides a pole tab forming method, which is applied to the pole tab forming equipment as described in the first aspect, the method comprising: obtaining the pole piece distance detected by multiple rangefinders, wherein the pole piece distance includes the distance between each rangefinder and the pole piece; according to the pole piece distance, determining the component to be adjusted from the pole piece fixing mechanism and the laser; adjusting the component to be adjusted so that the laser beam emitted by the laser is focused on the pole piece, wherein the laser beam is used to cut the pole piece to obtain the pole tab.

[0022] As can be seen from the above, in the present application, the distance between the pole piece and the distance meter can reflect the surface state of the pole piece. Therefore, by focusing the laser beam in real time according to the distance between the pole pieces, the problem of laser beam defocusing due to wrinkles, jitters, etc. of the pole piece can be avoided, and the problem of burrs and burrs in the tab formation can be avoided. In addition, in the embodiment of the present application, the component to be adjusted for focusing the laser beam is determined according to the distance between the pole pieces, that is, under different surface conditions, the optimal component to be adjusted is used to focus the laser beam, which can improve the accuracy of laser beam focusing, thereby avoiding quality problems such as burrs and burrs of the tab, improving the quality of the tab formation, and thus improving the safety performance of the battery.

[0023] In some embodiments, the component to be adjusted is determined from the pole piece fixing mechanism and the laser according to the pole piece distance, including: determining the laser focal depth corresponding to the laser according to the pole piece distance; determining the component to be adjusted from the pole piece fixing mechanism and the laser according to the laser focal depth.

[0024] By adjusting different components under different surface conditions of the pole piece, the laser beam can be focused more accurately on the pole piece, thereby avoiding the problem of laser beam defocusing and improving the quality of the pole ear forming.

[0025] In some embodiments, the laser focal depth corresponding to the laser is determined based on the pole piece distance, including: performing linear fitting on the pole piece distances detected by multiple rangefinders to obtain a fitting surface, wherein the fitting surface is used to characterize the surface state of the pole piece; based on a first preset correlation between the pole piece distance and the laser focal depth, determining the laser focal depth corresponding to the coordinate point in the fitting surface to obtain the laser focal depth corresponding to the laser.

[0026] By performing linear fitting on the pole piece distances detected by multiple rangefinders, the laser focal depth corresponding to each coordinate point in the pole piece is determined based on the fitting surface. Then, when the laser beam irradiates the coordinate point, the upper computer adjusts the laser or pole piece fixing mechanism so that the laser beam can be focused on the pole piece, avoiding the generation of burrs and flares during the pole tab forming process.

[0027] In some embodiments, the component to be adjusted is determined from the pole piece fixing mechanism and the laser according to the laser focal depth, including: determining the focal depth difference between the laser focal depth and the reference laser focal depth; when the focal depth difference is less than or equal to a preset focal depth difference, determining that the pole piece fixing mechanism is the component to be adjusted; when the focal depth difference is greater than the preset focal depth difference, determining that the laser is the component to be adjusted.

[0028] An appropriate component to be adjusted is selected according to the degree of difference between the laser focal depth and the reference laser focal depth to improve the accuracy of laser beam focusing.

[0029] In some embodiments, when the pole piece fixing mechanism is the component to be adjusted, the component to be adjusted is adjusted, including: determining the target pole piece position corresponding to the pole piece based on a second preset correlation between the depth of focus difference and the pole piece position; determining the target negative pressure wind speed of the pole piece fixing mechanism based on the position vector between the pole piece position and the target pole piece position; adjusting the negative pressure wind speed of the pole piece fixing mechanism to the target negative pressure wind speed, so as to adjust the pole piece position of the pole piece to the target pole piece position.

[0030] By adjusting the negative pressure wind speed of the pole piece fixing mechanism, the pole piece position can be adjusted so that the laser beam can be focused on the pole piece, thereby avoiding the generation of burrs and burrs on the pole ear.

[0031] In some embodiments, the pole piece fixing mechanism includes at least a negative pressure adsorption mechanism and a side suction mechanism, wherein the target negative pressure wind speed of the pole piece fixing mechanism is determined according to the position vector between the pole piece position and the target pole piece position, including: determining the first wind speed adjustment amount corresponding to the negative pressure adsorption mechanism and the second wind speed adjustment amount corresponding to the side suction mechanism according to the position vector between the pole piece position and the target pole piece position; and adjusting the negative pressure wind speed of the negative pressure adsorption mechanism and the negative pressure wind speed of the side suction mechanism based on the first wind speed adjustment amount and the second wind speed adjustment amount, respectively.

[0032] By adjusting the negative pressure wind speed of the negative pressure adsorption mechanism and the side suction mechanism, the position of the pole piece can be adjusted so that the laser beam can be focused on the pole piece, thereby avoiding the generation of burrs and burrs on the pole ear.

[0033] In some embodiments, when a laser is a component to be adjusted, the component to be adjusted is adjusted, including: determining a target movement vector corresponding to the laser galvanometer based on a third preset correlation between the depth of focus difference and the movement vector of the laser galvanometer of the laser; and moving the laser galvanometer to a target position according to the target movement vector so that the laser beam is focused on the pole piece.

[0034] When the laser focal depth deviates significantly from the reference laser focal depth, adjusting the laser can enable the laser beam to be focused on the pole ear of the pole piece in a timely manner, thereby improving the accuracy of laser focusing.

[0035] In some embodiments, after moving the laser galvanometer to the target position according to the target movement vector so that the laser beam is focused on the pole piece, the pole ear forming method also includes: calculating the target laser focal depth corresponding to the laser when the laser galvanometer is at the target position; and updating the reference laser focal depth to the target laser focal depth.

[0036] By updating the reference laser focal length, the laser beam can be accurately focused on the pole piece, avoiding the generation of burrs and burrs on the pole ear.

[0037] In a third aspect, the present application provides an electronic device comprising: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the tab forming method as described in the second aspect is implemented.

[0038] In a fourth aspect, the present application provides a readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the tab forming method as described in the second aspect is implemented.

[0039] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0041] FIG1 is a front view of a tab forming device in the related art;

[0042] FIG2 is a side view of a tab forming device in the related art;

[0043] FIG3 is a schematic structural diagram of a tab forming device according to an embodiment of the present application;

[0044] FIG4 is a schematic diagram of a pole piece according to an embodiment of the present application;

[0045] FIG5 is a flow chart of a tab forming method according to another embodiment of the present application;

[0046] FIG6 is a flow chart of a tab forming process according to another embodiment of the present application;

[0047] FIG7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

[0048] In the accompanying drawings, the drawings are not necessarily drawn to scale. DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0052] Reference to an "embodiment" in the embodiments of the present application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive with other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in the embodiments of the present application may be combined with other embodiments.

[0053] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0054] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0055] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0056] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0057] Pulsed laser cutting has been used in the winding process of lithium batteries for several years. As the equipment speeds up and becomes more efficient, both the laser single-point energy and energy density are constantly improving. However, there has been no good solution to the two key quality issues of tab cutting burrs and burrs.

[0058] Figure 1 shows a front view of a tab forming apparatus in the related art, and Figure 2 shows a side view of the tab forming apparatus along the direction of arrow A in Figure 1 . As can be seen from Figures 1 and 2 , the tab forming apparatus in the related art includes at least: a laser 10, a negative pressure adsorption mechanism 20, a transverse adsorption belt 30, a blanking belt 40, and a side suction mechanism 50. The negative pressure adsorption mechanism 20, the transverse adsorption belt 30, and the side suction mechanism 50 are configured to secure the pole piece. The laser 10 emits a laser beam toward the pole piece, and the intersection of the laser beam and the pole piece is the cutting point of the pole piece.

[0059] In related technologies, when using a laser to cut a pole piece, it is usually necessary to keep the area near the laser cutting point clear of air, and manually adjust the negative pressure adsorption mechanism by adjusting the power of the negative pressure motor and the opening of the manual valve. That is, after adjusting the focal length once, manually adjust the adsorption wind speed, side suction wind speed, rollers, etc., and measure the adjustment effect with the burr on the cutting surface less than 7μm as the standard. When the incoming tab material has large fluctuations, for example, due to process stretching or the tab itself, the laser will be partially defocused, resulting in the formation of burrs, burrs, and other uncut phenomena when the laser cuts the pole piece, thereby reducing the product quality of the lithium battery.

[0060] To solve the above problems, an embodiment of the present application provides a pole ear forming device. In the embodiment of the present application, a high-frequency laser rangefinder is used to realize real-time detection of the surface state of the pole piece, and the degree of wrinkling or fluctuation of the pole piece is calculated through control methods such as PID (Proportion Integral Differential, proportional, integral and differential), and then the laser or the pole piece fixing mechanism for fixing the pole piece is adjusted so that the laser emitted by the laser can be focused on the pole piece.

[0061] In one embodiment, Figure 3 shows a structural schematic diagram of the pole tab forming equipment provided in the embodiment of the present application. It can be seen from Figure 3 that in the embodiment of the present application, the pole tab forming equipment at least includes: a pole piece conveying mechanism (not marked in Figure 3), a pole piece fixing mechanism (not marked in Figure 3), a laser 10, multiple rangefinders 60 and a host computer (not marked in Figure 3).

[0062] As an example, the electrode sheet conveying mechanism is configured to convey the electrode sheet to the electrode tab forming equipment. For example, in Figure 3, the electrode sheet conveying mechanism conveys the electrode sheet from the top to the electrode tab forming equipment. After the electrode sheet is cut to obtain the electrode tab, it flows out from the bottom of Figure 3; the cut waste flows out by the blanking belt 40.

[0063] As an example, the electrode fixing mechanism may be composed of a negative pressure adsorption mechanism 20, a transverse adsorption belt 30, and a side suction mechanism 50, which are configured to fix the electrode. In the embodiment of the present application, the position of the electrode can also be adjusted by adjusting the negative pressure wind speed of the electrode fixing mechanism.

[0064] As an example, the laser 10 can emit a laser beam to cut the pole piece; a plurality of distance meters 60 are arranged between the pole piece conveying mechanism and the laser 10 along the pole piece walking direction, and are configured to detect the pole piece distance between different positions of the pole piece and the corresponding distance meters.

[0065] It should be noted that, in the embodiment of the present application, the multiple rangefinders 60 detect the distance between the pole piece and the rangefinder, and the distance between the rangefinder and the pole piece can reflect the surface condition of the pole piece, for example, whether the pole piece surface is flat, whether the pole piece surface is wrinkled, etc. Moreover, in the embodiment of the present application, since the rangefinder is arranged between the pole piece conveying mechanism and the laser, before the laser cuts the pole piece, the host computer can obtain the surface condition of the pole piece, and then determine whether to adjust the laser or the pole piece fixing mechanism according to the surface condition of the pole piece so that the laser beam emitted by the laser is focused on the pole piece, thereby avoiding the problem of burrs and burrs in the pole ear forming caused by the defocusing of the laser beam in the related art.

[0066] In addition, in order to improve the ranging accuracy of the rangefinder, in the embodiment of the present application, the rangefinder can be a laser rangefinder.

[0067] As an example, in an embodiment of the present application, the tab forming equipment further includes a host computer, which can be connected to the pole piece fixing mechanism, multiple rangefinders 60, and the laser 10, and is configured to determine the component to be adjusted from the pole piece fixing mechanism and the laser according to the pole piece distance, and adjust the component to be adjusted so that the laser beam is focused on the pole piece. In this embodiment of the present application, the focusing of the laser beam can be achieved by adjusting the focal length of the laser; the adjustment of the pole piece position can be achieved by adjusting the negative pressure wind speed of the pole piece fixing mechanism, thereby focusing the laser beam on the pole piece.

[0068] It should be noted that since the pole piece distance can reflect the surface state of the pole piece, the appropriate component to be adjusted can be selected according to different surface states so that the laser beam can be focused on the pole piece in real time to avoid the problems of burrs and burrs in the forming of the pole ear.

[0069] As can be seen from the above, in the present application, the distance between the pole piece and the distance meter can reflect the surface state of the pole piece. Therefore, by focusing the laser beam in real time according to the distance between the pole pieces, the problem of laser beam defocusing due to wrinkles, jitters, etc. of the pole piece can be avoided, and the problem of burrs and burrs in the tab formation can be avoided. In addition, in the embodiment of the present application, the component to be adjusted for focusing the laser beam is determined according to the distance between the pole pieces, that is, under different surface conditions, the optimal component to be adjusted is used to focus the laser beam, which can improve the accuracy of laser beam focusing, thereby avoiding quality problems such as burrs and burrs of the tab, improving the quality of the tab formation, and thus improving the safety performance of the battery.

[0070] In some embodiments, the laser and multiple rangefinders are positioned on different sides of the pole piece fixture. For example, in Figure 3, the laser is positioned on the positive side of the pole piece, while the rangefinders are positioned on the negative side. Placing the laser and rangefinders on different sides of the pole piece fixture avoids the problem of the rangefinders occupying the laser's working space, which can lead to low laser cutting accuracy. This improves the quality of the tab formation and enhances the safety of the battery.

[0071] In some embodiments, the acquisition frequency of the multiple rangefinders is greater than or equal to 50 KHz, that is, in the embodiment of the present application, the rangefinder can be a high-frequency rangefinder.

[0072] It should be noted that when the acquisition frequency of the rangefinder is low, there is a risk of missed detection; using a rangefinder with a higher acquisition frequency can avoid the risk of missed detection, improve the distance detection accuracy, and enable the laser beam to be focused on the pole piece, avoiding the problem of burrs and burrs on the pole ear forming.

[0073] In some embodiments, the detection positions of the multiple rangefinders on the pole piece are within the blank area of ​​the pole piece, wherein the pole piece includes a coating area and a blank area arranged along the width direction.

[0074] It should be noted that the electrode sheet includes a coating area and a blank area, wherein the coating area is the area coated with the active material layer, and the blank area is the area not coated with the active material layer. In the embodiment of the present application, the blank area of ​​the electrode sheet is cut by a laser beam to obtain the electrode tab.

[0075] In addition, it should be noted that in the embodiment of the present application, the detection position of the rangefinder on the pole piece is located in the blank area of ​​the pole piece, that is, the rangefinder detects the distance between the pole ear and the rangefinder, which can reflect the surface state of the pole ear (for example, flatness, wrinkles), and then adjust the component to be adjusted according to the distance to focus the laser beam on the pole ear, so as to ensure the accuracy of the pole ear cutting and avoid the generation of burrs and burrs on the pole ear.

[0076] In some embodiments, the horizontal spacing between the detection positions of the multiple rangefinders on the blank area and the coating area is a first spacing, the width of the blank area is a second spacing, and the ratio between the first spacing and the second spacing is greater than or equal to 50%.

[0077] As an example, in the pole piece schematic diagram shown in Figure 4, the horizontal spacing between the detection position and the coating area is L1, and the width of the blank area is L2. Then L1 and L2 need to satisfy L1 / L2 ≥ 50%, that is, the detection position of the rangefinder is set within the 50% area outside the pole ear.

[0078] It should be noted that the wrinkles and fluctuations of the tab usually occur in the area outside the tab. Therefore, in the embodiment of the present application, the distance between the area outside the tab and the distance meter is detected by a distance meter, which can more accurately determine the surface state of the tab, and then adjust the laser or pole piece fixing mechanism according to the surface state of the tab to avoid the generation of burrs and burrs during the tab cutting process.

[0079] As an example, as shown in FIG3 , the electrode fixing mechanism includes: a negative pressure adsorption mechanism 20, a transverse adsorption belt 30, and a side suction mechanism 50. The negative pressure adsorption mechanism 20 is configured to adjust the position of the electrode in the vertical direction. For example, in FIG3 , the arrow in the negative pressure adsorption mechanism indicates the blowing direction. When the blowing direction in the negative pressure adsorption mechanism is vertical, the negative pressure adsorption mechanism adjusts the position of the electrode in the vertical direction. Similarly, the transverse adsorption belt 30 is configured to adjust the position of the electrode in the first horizontal direction. The side suction mechanism 50 is configured to adjust the position of the electrode in the second horizontal direction, wherein the first horizontal direction and the second horizontal direction are perpendicular to each other.

[0080] It should be noted that by providing a pole piece fixing mechanism, the pole piece position can be adjusted so that the laser beam can be focused on the pole piece, thereby avoiding the generation of burrs and burrs on the pole ear.

[0081] In some embodiments, the host computer performs linear fitting on the pole piece distance to obtain a fitting surface that characterizes the surface state of the pole piece; the real-time laser focal depth corresponding to the laser is determined based on the fitting surface, and based on the difference between the real-time laser focal depth and the reference laser focal depth, the component to be adjusted is determined from the pole piece fixing mechanism and the laser, and the component to be adjusted is adjusted so that the laser beam is focused on the pole piece.

[0082] It should be noted that the focal depth of a laser is one of the important parameters that determine the focusing effect of a laser beam. It refers to the length of the interval within which a laser beam can be focused to become the minimum point within a certain distance range on the optical axis.

[0083] In an embodiment of the present application, multiple distance meters are provided on the basis of the tab forming equipment in the related art. The multiple distance meters detect the distance between the pole piece and the distance meter in real time. The host computer performs a linear fit on the real-time detected distance. The resulting fitted surface can represent the surface state of the pole piece. Furthermore, based on the degree of deviation between the real-time laser focal depth of the laser determined by the fitted surface and the reference laser focal depth, the host computer chooses to adjust the laser or the pole piece fixing mechanism to focus the laser beam on the pole piece.

[0084] From the above content, it can be seen that in the embodiment of the present application, the component to be adjusted for focusing the laser beam is determined according to the pole piece distance, that is, under different surface conditions, the optimal component to be adjusted is used to focus the laser beam, which can improve the accuracy of laser beam focusing, thereby avoiding quality problems such as burrs and burrs on the pole ear, improving the quality of the pole ear forming, and thereby improving the safety performance of the battery.

[0085] In one embodiment, FIG5 shows a flow chart of a tab forming method, which can be applied to the tab forming equipment described above, and specifically to the host computer of the tab forming equipment. As shown in FIG5 , the method can include the following steps:

[0086] Step S501: obtaining pole piece distances detected by multiple distance meters.

[0087] In step S501, the pole piece distance includes the distance between each distance meter and the pole piece. In one example, each distance meter is connected to a host computer, so that the host computer can obtain the pole piece distance detected by each distance meter in real time.

[0088] Step S502 : determining, based on the pole piece distance, at least one of the pole piece fixing mechanism and the laser as a component to be adjusted.

[0089] In step S502, in addition to obtaining the pole piece distance detected by each rangefinder, the upper computer can also determine the detection position of each rangefinder on the pole piece, so that the upper computer can perform linear fitting based on the pole piece distance and detection position to obtain a fitting surface, and then determine the laser focal depth based on the fitting surface, so as to determine the component to be adjusted from the pole piece fixing mechanism and the laser according to the laser focal depth.

[0090] It should be noted that in the embodiment of the present application, the component to be adjusted for focusing the laser beam is determined according to the pole piece distance, that is, under different surface conditions, the optimal component to be adjusted is used to focus the laser beam, which can improve the accuracy of laser beam focusing, thereby avoiding quality problems such as burrs and burrs on the pole ear, improving the quality of the pole ear forming, and thereby improving the safety performance of the battery.

[0091] Step S503 , adjusting the component to be adjusted so that the laser beam emitted by the laser is focused on the pole piece.

[0092] In step S503 , the laser beam is used to cut the pole piece to obtain the pole lug.

[0093] As an example, for different components to be adjusted, the corresponding adjustment methods are different. For example, for a laser, the host computer mainly adjusts the position of the laser galvanometer of the laser so that the laser beam emitted by the laser is focused on the pole piece; for a pole piece fixing mechanism, the host computer mainly adjusts the negative pressure wind speed of the pole piece fixing mechanism to achieve adjustment of the pole piece position, so that the laser beam emitted by the laser can be focused on the pole piece.

[0094] Based on the scheme defined in the above steps S501 to S503, it can be known that in the embodiment of the present application, the pole piece distance between the pole piece and the rangefinder can reflect the surface state of the pole piece. Therefore, by focusing the laser beam in real time according to the pole piece distance, the problem of laser beam defocusing due to wrinkles, jitters, etc. of the pole piece can be avoided, and the problem of burrs and burrs in the tab formation can be avoided. In addition, in the embodiment of the present application, the component to be adjusted for focusing the laser beam is also determined according to the pole piece distance, that is, under different surface conditions, the optimal component to be adjusted is used to focus the laser beam, which can improve the accuracy of laser beam focusing, thereby avoiding quality problems such as burrs and burrs of the tab, improving the quality of the tab formation, and thus improving the safety performance of the battery.

[0095] In some embodiments, the component to be adjusted is determined from the pole piece fixing mechanism and the laser according to the pole piece distance, including: determining the laser focal depth corresponding to the laser according to the pole piece distance; determining the component to be adjusted from the pole piece fixing mechanism and the laser according to the laser focal depth.

[0096] It should be noted that the pole piece distance reflects the surface condition of the pole piece, and the corresponding laser focal depth is different under different surface conditions. Adjusting different components under different pole piece surface conditions can make the laser beam more accurately focused on the pole piece, thereby avoiding the problem of laser beam defocusing and improving the quality of the tab forming.

[0097] In some embodiments, determining the laser focal depth corresponding to the laser based on the pole piece distance includes: performing linear fitting on the pole piece distances detected by multiple rangefinders to obtain a fitting surface; determining the laser focal depth corresponding to the coordinate point in the fitting surface based on a first preset correlation between the pole piece distance and the laser focal depth, and obtaining the laser focal depth corresponding to the laser.

[0098] In an embodiment of the present application, an existing linear fitting algorithm can be used to perform linear fitting on the pole piece distance to obtain a fitting surface. After determining the fitting surface, the host computer can determine the laser focal depth corresponding to each coordinate point in the fitting surface based on the correlation between the existing pole piece distance and the laser focal depth. Among them, the shape of the fitting surface is the same as the shape of the pole piece, and the fitting surface represents the surface state of the pole piece. The attribute information corresponding to each coordinate point in the fitting surface includes coordinate information and the pole piece distance corresponding to the coordinate point. The coordinate information reflects the coordinate of the detection position in the pole piece.

[0099] By performing linear fitting on the pole piece distances detected by multiple rangefinders, the fitting surface can be integrated into the cutting trajectory of the laser, and then the laser focal depth corresponding to each coordinate point in the pole piece can be determined based on the fitting surface. When the laser beam irradiates the coordinate point, the upper computer adjusts the laser or pole piece fixing mechanism so that the laser beam can be focused on the pole piece, avoiding the generation of burrs and flares during the pole ear forming process.

[0100] In some embodiments, the component to be adjusted is determined from the pole piece fixing mechanism and the laser according to the laser focal depth, including: determining the focal depth difference between the laser focal depth and the reference laser focal depth; when the focal depth difference is less than or equal to a preset focal depth difference, determining that the pole piece fixing mechanism is the component to be adjusted; when the focal depth difference is greater than the preset focal depth difference, determining that the laser is the component to be adjusted.

[0101] In the above embodiment, the reference laser focal depth may be, but is not limited to, 0.6 mm. In the embodiment of the present application, when the laser focal depth deviates slightly from the reference laser focal depth, fine-tuning the position of the pole piece can focus the laser beam on the pole piece's lug. However, when the laser focal depth deviates significantly from the reference laser focal depth, simply adjusting the pole piece's position may not enable the laser beam to be focused on the pole piece's lug in a timely manner. In this case, adjusting the laser can enable the laser beam to be focused on the pole piece's lug in a timely manner.

[0102] It can be seen that the accuracy of laser beam focusing can be improved by selecting a suitable component to be adjusted according to the difference between the laser focal depth and the reference laser focal depth.

[0103] In some embodiments, when the pole piece fixing mechanism is the component to be adjusted, the component to be adjusted is adjusted, including: determining the target pole piece position corresponding to the pole piece based on a second preset correlation between the depth of focus difference and the pole piece position; determining the target negative pressure wind speed of the pole piece fixing mechanism based on the position vector between the pole piece position and the target pole piece position; adjusting the negative pressure wind speed of the pole piece fixing mechanism to the target negative pressure wind speed, so as to adjust the pole piece position of the pole piece to the target pole piece position.

[0104] As an example, the upper computer stores the correlation between the depth of focus difference and the pole piece position. After determining the depth of focus difference corresponding to each coordinate point in the fitting surface, the upper computer can determine the position of the pole piece at each coordinate point based on the above correlation, thereby determining the target pole piece position. Then, the difference between the target pole piece position and the pole piece position is calculated to obtain the position vector. The upper computer can adjust the pole piece position by adjusting the negative pressure wind speed of the pole piece fixing mechanism based on the position vector, that is, adjusting the pole piece from the pole piece position to the target pole piece position.

[0105] By adjusting the negative pressure wind speed of the pole piece fixing mechanism, the pole piece position can be adjusted so that the laser beam can be focused on the pole piece, achieving accurate cutting of the pole piece and thus avoiding the generation of burrs and burrs on the pole ear.

[0106] In some embodiments, the target negative pressure wind speed of the pole piece fixing mechanism is determined based on the position vector between the pole piece position and the target pole piece position, including: determining the first wind speed adjustment amount corresponding to the negative pressure adsorption mechanism and the second wind speed adjustment amount corresponding to the side suction mechanism based on the position vector between the pole piece position and the target pole piece position; and adjusting the negative pressure wind speed of the negative pressure adsorption mechanism and the negative pressure wind speed of the side suction mechanism based on the first wind speed adjustment amount and the second wind speed adjustment amount, respectively.

[0107] In the above embodiment, the electrode fixing mechanism includes at least a negative pressure adsorption mechanism and a side suction mechanism, wherein the negative pressure adsorption mechanism is configured to adjust the position of the electrode in the vertical direction, and the side suction mechanism is configured to adjust the position of the electrode in the horizontal direction.

[0108] By adjusting the negative pressure wind speed of the negative pressure adsorption mechanism and the side suction mechanism, the position of the pole piece can be adjusted so that the laser beam can be focused on the pole piece, thereby avoiding the generation of burrs and burrs on the pole ear.

[0109] In some embodiments, when a laser is a component to be adjusted, the component to be adjusted is adjusted, including: determining a target movement vector corresponding to the laser galvanometer based on a third preset correlation between the depth of focus difference and the movement vector of the laser galvanometer of the laser; and moving the laser galvanometer to a target position according to the target movement vector so that the laser beam is focused on the pole piece.

[0110] In the embodiment of the present application, the laser galvanometer can be, but is not limited to, a 3D galvanometer. In the embodiment of the present application, the host computer also stores the correlation between the focal depth difference and the motion vector of the laser galvanometer. After determining the focal depth difference, the host computer can determine the motion vector of the laser vibration based on the above correlation, thereby focusing the laser beam emitted by the laser galvanometer at the target position on the pole piece.

[0111] When the laser focal depth deviates significantly from the reference laser focal depth, adjusting the laser can enable the laser beam to be focused on the pole ear of the pole piece in a timely manner, thereby improving the accuracy of laser focusing.

[0112] In some embodiments, after the laser galvanometer is moved to the target position according to the target movement vector so that the laser beam is focused on the pole piece, the host computer also calculates the target laser focal depth corresponding to the laser when the laser galvanometer is at the target position; and updates the reference laser focal depth to the target laser focal depth.

[0113] By updating the reference laser focal length, the laser beam can be accurately focused on the pole piece, avoiding the generation of burrs and burrs on the pole ear.

[0114] In order to facilitate understanding of the technical solution provided in the embodiment of the present application, the solution provided in the embodiment of the present application is briefly described below with reference to FIG6 using a complete tab forming process:

[0115] Based on the reference laser focal depth, the host computer identifies the component to be adjusted from the pole piece fixture and the laser. After the component is adjusted, the laser beam emitted by the laser is focused on the pole piece. Simultaneously, the rangefinder continues to measure the distance between the pole piece and the rangefinder. Based on this distance, a linear fit is performed to obtain a fitted surface. This fitted surface is used to adjust the reference laser focal depth, thus forming a closed-loop control system.

[0116] It can be seen from the above content that the solution provided in the embodiment of the present application can realize real-time adjustment of the laser focus, thereby avoiding the generation of burrs and flashes during the tab forming process.

[0117] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0118]

[0119] In one embodiment, the present application further provides an electronic device, which includes: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the above-mentioned tab forming method is implemented.

[0120] FIG7 shows a schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application.

[0121] The electronic device may include a processor 701 and a memory 702 storing computer program instructions.

[0122] Specifically, the processor 701 may include a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0123] The memory 702 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 702 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 702 may include removable or non-removable (or fixed) media. Where appropriate, the memory 702 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 702 is a non-volatile solid-state memory.

[0124] The memory may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical or other physical / tangible memory storage devices. Thus, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to an aspect of the present disclosure.

[0125] The processor 701 reads and executes computer program instructions stored in the memory 702 to implement any one of the tab forming methods in the above embodiments.

[0126] In one example, the electronic device may further include a communication interface 703 and a bus 710. As shown in FIG7, the processor 701, the memory 702, and the communication interface 703 are connected via the bus 710 and communicate with each other.

[0127] The communication interface 703 is mainly configured to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0128] Bus 710 comprises hardware, software or both, couples the parts of electronic equipment to each other.For example, and not limitation, bus can comprise accelerated graphics port (AGP) or other graphics bus, enhanced industry standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industry standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations.In suitable cases, bus 710 can comprise one or more buses.Although the present application embodiment describes and shows specific bus, the application considers any suitable bus or interconnection.

[0129] In one embodiment, the present application further provides a readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the above-mentioned tab forming method is implemented.

[0130] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0131] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link via a data signal carried in a carrier wave. "Machine-readable medium" can include any medium that can store or transmit information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0132] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0133] The above description of various aspects of the present application is based on the flowcharts and / or block diagrams of the tab forming device, tab forming method, electronic device and storage medium according to the embodiments of the present application. It should be understood that each box in the flowchart and / or block diagram and the combination of boxes in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the functions / actions specified in one or more boxes in the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit. It can also be understood that each box in the block diagram and / or flowchart and the combination of boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A tab forming device comprising: a pole piece conveying mechanism, configured to convey pole pieces; a pole piece fixing mechanism, configured to fix the pole piece; a laser (10) configured to emit a laser beam to cut the pole piece; A plurality of distance meters (60) are arranged between the pole piece conveying mechanism and the laser (10) along the pole piece conveying direction, and are configured to detect the pole piece distance between different positions of the pole piece and the corresponding distance meters (60); A host computer is connected to the pole piece fixing mechanism, the multiple rangefinders (60), and the laser (10), and is configured to determine the laser focal depth corresponding to the laser (10) according to the pole piece distance, determine at least one of the pole piece fixing mechanism and the laser (10) as a component to be adjusted based on the laser focal depth, and adjust the component to be adjusted so that the laser beam is focused on the pole piece.

2. The tab forming equipment according to claim 1, wherein: The laser (10) and the plurality of rangefinders (60) are arranged on different sides of the pole piece fixing mechanism.

3. The tab forming apparatus according to any one of claims 1 to 2, wherein: The acquisition frequency of the multiple rangefinders (60) is greater than or equal to 50KHz.

4. The tab forming apparatus according to any one of claims 1 to 3, wherein: The detection positions of the multiple rangefinders (60) on the pole piece are located within a blank area of the pole piece, wherein the pole piece includes a coating area and the blank area arranged along a width direction.

5. The tab forming equipment according to claim 4, wherein: The horizontal spacing between the detection positions of the multiple distance meters (60) on the blank area and the coating area is a first spacing, the width of the blank area is a second spacing, and the ratio between the first spacing and the second spacing is greater than or equal to 50%.

6. The tab forming equipment according to claim 1, wherein: The pole piece fixing mechanism comprises: A negative pressure adsorption mechanism (20) is configured to adjust the position of the pole piece in the vertical direction; a transverse suction belt (30) configured to adjust the position of the pole piece in a first horizontal direction; The side suction mechanism (50) is configured to adjust the position of the pole piece in a second horizontal direction, wherein the first horizontal direction and the second horizontal direction are perpendicular to each other.

7. The tab forming equipment according to claim 1, wherein: The host computer performs linear fitting on the pole piece distance to obtain a fitting surface representing the surface state of the pole piece; the real-time laser focal depth corresponding to the laser (10) is determined based on the fitting surface; based on the difference between the real-time laser focal depth and the reference laser focal depth, the component to be adjusted is determined from the pole piece fixing mechanism and the laser (10); and the component to be adjusted is adjusted so that the laser beam is focused on the pole piece.

8. The tab forming apparatus according to claim 7, wherein: The laser includes a laser galvanometer, and the host computer is further used to store the difference between the real-time laser focal depth and the reference laser focal depth, and the correlation between the difference and the movement vector of the laser galvanometer, so as to determine the target movement vector corresponding to the laser galvanometer according to the correlation relationship, and control the laser galvanometer to move to the target position according to the target movement vector, so that the laser beam is focused on the pole piece.

9. The tab forming apparatus according to claim 2, wherein: The laser (10) is located on the side of the pole piece facing the front, and the rangefinder (60) is located on the side of the pole piece facing the negative.

10. A tab forming method, applied to the tab forming apparatus according to any one of claims 1 to 9, the method comprising: Obtaining pole piece distances detected by a plurality of rangefinders, wherein the pole piece distances include the distance between each rangefinder and the pole piece; According to the pole piece distance, determining at least one of the pole piece fixing mechanism and the laser as a component to be adjusted; The component to be adjusted is adjusted so that the laser beam emitted by the laser is focused on the pole piece, wherein the laser beam is used to cut the pole piece to obtain a pole ear.

11. The method according to claim 10, wherein: According to the pole piece distance, determining at least one of the pole piece fixing mechanism and the laser as a component to be adjusted includes: Determining the laser focal depth corresponding to the laser according to the pole piece distance; The component to be adjusted is determined from the pole piece fixing mechanism and the laser according to the laser focal depth.

12. The method according to claim 10, wherein: Determining the laser focal depth corresponding to the laser according to the pole piece distance includes: Performing linear fitting on the pole piece distances detected by the multiple rangefinders to obtain a fitting surface, wherein the fitting surface is used to characterize the surface state of the pole piece; According to a first preset correlation between the pole piece distance and the laser focal depth, the laser focal depth corresponding to the coordinate point in the fitting surface is determined to obtain the laser focal depth corresponding to the laser.

13. The method according to claim 11, wherein Determining a component to be adjusted from the pole piece fixing mechanism and the laser according to the laser focal depth includes: Determining a focal depth difference between the laser focal depth and a reference laser focal depth; When the focal depth difference is less than or equal to a preset focal depth difference, determining that the pole piece fixing mechanism is the component to be adjusted; When the focal depth difference is greater than the preset focal depth difference, the laser is determined to be the component to be adjusted.

14. The method according to claim 13, wherein In a case where the pole piece fixing mechanism is the component to be adjusted, adjusting the component to be adjusted includes: Determining a target pole piece position corresponding to the pole piece according to a second preset correlation relationship between the focal depth difference and the pole piece position; determining a target negative pressure wind speed of the pole piece fixing mechanism according to a position vector between the pole piece position and the target pole piece position; The negative pressure wind speed of the pole piece fixing mechanism is adjusted to the target negative pressure wind speed, so as to adjust the pole piece position of the pole piece to the target pole piece position.

15. The method according to claim 14, wherein The pole piece fixing mechanism comprises at least a negative pressure adsorption mechanism and a side suction mechanism (50), wherein the target negative pressure wind speed of the pole piece fixing mechanism is determined according to the position vector between the pole piece position and the target pole piece position, including: Determining a first wind speed adjustment amount corresponding to the negative pressure adsorption mechanism (20) and a second wind speed adjustment amount corresponding to the side suction mechanism (50) based on a position vector between the pole piece position and the target pole piece position; The negative pressure wind speed of the negative pressure adsorption mechanism (20) and the negative pressure wind speed of the side suction mechanism (50) are adjusted based on the first wind speed adjustment amount and the second wind speed adjustment amount, respectively.

16. The method according to claim 13, wherein In a case where the laser is the component to be adjusted, adjusting the component to be adjusted includes: Determining a target motion vector corresponding to the laser galvanometer based on a third preset correlation between the focal depth difference and a motion vector of the laser galvanometer of the laser; The laser galvanometer is moved to a target position according to the target movement vector so that the laser beam is focused on the pole piece.

17. The method according to claim 16, wherein After moving the laser galvanometer to a target position according to the target movement vector so that the laser beam is focused on the pole piece, the method further includes: Calculating a target laser focal depth corresponding to the laser when the laser galvanometer is at the target position; The reference laser focal depth is updated to the target laser focal depth.

18. The method according to claim 12, wherein: The shape of the fitting surface is the same as the shape of the pole piece. The attribute information corresponding to each coordinate point in the fitting surface includes coordinate information and the pole piece distance corresponding to the coordinate point. The coordinate information is used to represent the coordinates of the detection position in the pole piece.

19. An electronic device, comprising: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the tab forming method according to any one of claims 10 to 18 is implemented.

20. A readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the tab forming method according to any one of claims 10 to 18.

Images