Welding method, welding device, welding apparatus, and battery

Abstract

The application relates to a welding quality detection method and device, a detection equipment, a storage medium and a computer program product. The method comprises the following steps: when the detection equipment detects that the welding of a target product is completed, the support is separated from the target product, the separation tension when the support is separated from the target product is obtained, and whether the welding of the target product is qualified is indirectly judged according to the separation tension. The method can realize nondestructive testing and effectively improve the product quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a welding method, a welding device, a welding equipment, a battery, a storage medium and a computer program product. BACKGROUND

[0002] With the development of welding technology, laser welding has been widely applied due to its high efficiency. However, in the long-term and large-scale industrial production process, there will be a certain probability of variation in the process characteristics, and when the variation leads to melt-through, it will seriously affect the product quality.

[0003] However, at present, it is impossible to detect the melt-through defect in a visual manner from the outside, so it is difficult to detect the welding quality, resulting in difficulty in ensuring the product quality. SUMMARY

[0004] Therefore, it is necessary to provide a welding method, a welding device, a welding equipment, a battery, a computer readable storage medium and a computer program product capable of improving product quality in view of the above technical problems.

[0005] In a first aspect, the present application provides a welding method. The method comprises:

[0006] welding a first welding target and a second welding target; the first welding target is supported by a support;

[0007] after completing the welding of the first welding target and the second welding target, controlling the support to separate from the first welding target;

[0008] obtaining a separation tension when the support separates from the first welding target;

[0009] determining whether the welding of the first welding target and the second welding target is qualified according to the separation tension.

[0010] In one of the embodiments, the determination of whether the welding of the first welding target and the second welding target is qualified according to the separation tension comprises: when the separation tension is less than a set tension threshold, determining that the welding of the first welding target and the second welding target is qualified; and when the separation tension is greater than or equal to the set tension threshold, determining that the welding of the first welding target and the second welding target is unqualified.

[0011] In one of the embodiments, the method further comprises: when it is determined that the welding of the first welding target and the second welding target is qualified, transmitting the qualified welded target to the next process; and when it is determined that the welding of the first welding target and the second welding target is unqualified, transmitting the welded target to an unqualified area.

[0012] In one of the embodiments, after the separation tension when the support is separated from the first welding target is acquired, the method further comprises: storing the correspondence between the first welding target and the separation tension.

[0013] In one of the embodiments, the separation tension when the support is separated from the first welding target is acquired by: detecting the separation tension when the support is separated from the first welding target through a tension sensor, and acquiring the separation tension detected by the tension sensor; or detecting the separation tension when the support is separated from the first welding target through a servo motor, and acquiring the separation tension detected by the servo motor.

[0014] In one of the embodiments, the first welding target is a current collector, and / or the second welding target is a pole.

[0015] In one of the embodiments, when the first welding target is a current collector, the first welding target is supported by the support, comprising: the support passing through the center of the battery cell to support the current collector arranged at the end of the battery cell.

[0016] In a second aspect, the present application further provides a welding device. The device comprises:

[0017] a welding module for welding a first welding target and a second welding target; the first welding target is supported by a support;

[0018] a control module for controlling the support to be separated from the first welding target when the welding of the first welding target and the second welding target is completed;

[0019] a tension acquisition module for acquiring the separation tension when the support is separated from the first welding target;

[0020] a qualification determination module for determining whether the welding of the first welding target and the second welding target is qualified according to the separation tension.

[0021] In a third aspect, the present application further provides a welding equipment. The welding equipment comprises a memory and a processor, the memory stores a computer program, and the processor realizes the steps of the first aspect when the computer program is executed.

[0022] In a fourth aspect, the present application further provides a computer readable storage medium. The computer readable storage medium stores a computer program, and the computer program is executed by a processor to realize the steps of the first aspect.

[0023] In a fifth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of the first aspect.

[0024] In a sixth aspect, the present application also provides a battery comprising a current collector and a pole, which are welded by the method of the first aspect.

[0025] The welding method, welding device, welding equipment, battery, storage medium and computer program product described above can weld the first welding target and the second welding target, wherein the first welding target is supported by the support, after the welding of the first welding target and the second welding target is completed, the support is separated from the first welding target, and the separation tension when the support is separated from the first welding target is obtained, so as to determine whether the welding of the first welding target and the second welding target is qualified according to the separation tension. Not only can the welding quality be effectively improved, but also nondestructive testing of the welding can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A flowchart of the welding method in one embodiment is shown;

[0027] Figure 2 An application environment diagram of the welding method in one embodiment is shown;

[0028] Figure 3 An application environment diagram of the welding method in another embodiment is shown;

[0029] Figure 4 A structure block diagram of the welding device in one embodiment is shown;

[0030] Figure 5 An internal structure diagram of the welding equipment in one embodiment is shown. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0032] In one embodiment, as shown in Figure 1 A welding method is provided, which can specifically include the following steps when the method is applied to a welding equipment:

[0033] Step 102, welding the first welding target and the second welding target.

[0034] The first welding target is supported by the support. The first welding target and the second welding target can be product components that need to be assembled or connected through a welding process. In this embodiment, the first welding target is supported by the support, and the first welding target and the second welding target are welded by the welding device, so that the first welding target and the second welding target, which are independent respectively, become a whole through welding.

[0035] In step 104, when the welding of the first welding target and the second welding target is completed, the support is controlled to be separated from the first welding target.

[0036] In this embodiment, when the welding device completes the welding of the first welding target and the second welding target, the support can be controlled to be separated from the first welding target, that is, the support for supporting the first welding target during the welding process is separated from the first welding target so as to no longer support the first welding target.

[0037] Specifically, as shown in Figure 2 the support 21 is used to support the first welding target 22 during welding, that is, the first welding target 22 is supported by the support 21 during the welding of the first welding target 22 and the second welding target 23 by the welding device. After the welding of the first welding target 22 and the second welding target 23 is completed, the support 21 is controlled to be separated from the first welding target 22, so that the support 21 no longer supports the first welding target 22.

[0038] In step 106, a separation tension when the support is separated from the first welding target is obtained.

[0039] The separation tension is a force formed when the support is separated from the first welding target. Since one end of the support is in contact with the first welding target during the welding, as shown in Figure 2 one end of the support 21 is in contact with the relative position of the welding area 25 (that is, the welding spot) on the first welding target 22, that is, one face of the first welding target 22 is welded with the second welding target 23 to form a welding spot, and the other face of the first welding target 22 is supported by the support 21, so that the first welding target 22 can be supported during welding. When the support 21 is to be separated from the first welding target 22, a certain force is needed, that is, the separation tension for separation.

[0040] In this embodiment, when the welding device completes the welding of the first welding target and the second welding target, the support can be controlled to be separated from the first welding target, and the separation tension when the support is separated from the first welding target is obtained.

[0041] In step 108, whether the welding of the first welding target and the second welding target is qualified is determined according to the separation tension.

[0042] In the embodiment, the welding device can determine whether the welding of the first welding target and the second welding target is qualified according to the separation force obtained.

[0043] In the welding method, the welding device welds the first welding target and the second welding target, the first welding target is supported by the support, after the welding of the first welding target and the second welding target is completed, the support is controlled to separate from the first welding target, and the separation force when the support separates from the first welding target is obtained, so as to determine whether the welding of the first welding target and the second welding target is qualified according to the separation force. Not only the welding quality can be effectively improved, but also the non-destructive testing of the welding can be realized.

[0044] In one embodiment, in step 108, determining whether the welding of the first welding target and the second welding target is qualified according to the separation force can specifically include: when the separation force is less than a set force threshold, determining that the welding of the first welding target and the second welding target is qualified; and when the separation force is greater than or equal to the set force threshold, determining that the welding of the first welding target and the second welding target is unqualified.

[0045] The force threshold can be the maximum force required when the support separates from the first welding target in the qualified state of welding. Therefore, when the separation force of the support separating from the first welding target is less than the set force threshold, it indicates that there is no melt-through defect, so that it can be determined that the welding of the first welding target and the second welding target is qualified. When the separation force of the support separating from the first welding target is greater than or equal to the set force threshold, it indicates that there is a melt-through defect, so that it can be determined that the welding of the first welding target and the second welding target is unqualified.

[0046] In one scenario, the force threshold can be set based on the actual application scenario. Generally, the greater the melt-through area, the greater the separation force required, and the smaller the melt-through area, the smaller the separation force required. Therefore, the force threshold can be set to different values based on different quality requirements. For example, when the quality requirement is high, a smaller force threshold can be set, and when the quality requirement is low, a larger force threshold can be set.

[0047] In one embodiment, the method can further include: when it is determined that the welding of the first welding target and the second welding target is qualified, the welded target can be transmitted to a next process. The welded target is the whole target after the first welding target and the second welding target are welded. The next process can be a process of continuing to process or handle the welded whole target. Specifically, when the welding equipment determines that the welding of the first welding target and the second welding target is qualified through the above judgment, the welded whole target can be transmitted to the next process, so that the welded whole target can be continuously handled, not only the online detection of the welding quality can be realized, but also the quality risk of subsequent products can be reduced and the product quality can be improved.

[0048] In one embodiment, the method can further include: when it is determined that the welding of the first welding target and the second welding target is unqualified, the welded target can be transmitted to an unqualified area. The unqualified area can be an area for storing unqualified products. Specifically, when the welding equipment determines that the welding of the first welding target and the second welding target is unqualified through the above judgment, the welded target can be transmitted to the unqualified area, so that the unqualified products can be timely rejected, not only the quality risk of subsequent products can be reduced and the product quality can be improved, but also the closed-loop control of the product welding quality can be realized.

[0049] In one embodiment, after the separation tension when the support is separated from the first welding target is obtained in step 106, the method can further include: storing the correspondence between the welded target and the separation tension. Specifically, the correspondence that can be stored is the correspondence between the identification of the welded target and the separation tension. The identification can be a product number or a product code, etc., through which a welded target can be uniquely determined. In this embodiment, by storing the correspondence between the welded target and the separation tension, the traceability and the quality statistical management can be facilitated.

[0050] In one scenario, the correspondence between the welded target and the separation tension can also be transmitted to a remote device, not only the data backup can be realized to improve the security of the data, but also the quality statistical management of the remote device can be facilitated.

[0051] In one embodiment, in step 106, the separation tension when the support is separated from the first welding target can be obtained, specifically, the separation tension when the support is separated from the first welding target can be detected by a tension sensor, and the separation tension detected by the tension sensor can be obtained. The tension sensor 24 can be arranged on the support as shown in the drawing, so that the separation tension when the support is separated from the first welding target can be detected. In addition, the cost of the tension sensor is low, so the detection cost can be saved. Figure 2 In one embodiment, in step 106, the separation tension when the support is separated from the first welding target can be obtained, specifically, the separation tension when the support is separated from the first welding target can be detected by a tension sensor, and the separation tension detected by the tension sensor can be obtained. The tension sensor 24 can be arranged on the support as shown in the drawing, so that the separation tension when the support is separated from the first welding target can be detected. In addition, the cost of the tension sensor is low, so the detection cost can be saved.

[0052] In one embodiment, in step 106, obtaining the separation tension when the support separates from the first welding target may further include: detecting the separation tension when the support separates from the first welding target using a servo motor, and obtaining the separation tension detected by the servo motor. The servo motor can be installed in a servo system that controls the extension and retraction of the support, and it works in conjunction with corresponding control logic to detect the separation tension when the support separates from the first welding target. Furthermore, because servo motors have high precision, the detection accuracy can be further improved to ensure product quality.

[0053] In one embodiment, the first welding target can be a manifold or a pole, and the second welding target can be either a pole or a manifold. For example, when the first welding target is a manifold, the second welding target is a pole, and when the first welding target is a pole, the second welding target is a manifold.

[0054] In one embodiment, taking the first welding target as the manifold and the second welding target as the electrode post as an example to further illustrate the above welding method, the above method can be applied to, for example... Figure 3 The image shows a battery welding scenario. Since the positive terminal of the battery is typically welded to the positive current collector, a weld breakage can lead to the accumulation of foreign matter inside the battery, severely compromising its safety performance. Traditional technologies cannot detect weld breakage non-destructively (e.g., visually), necessitating destructive sampling, which wastes resources and compromises product quality.

[0055] Based on this, in the battery manufacturing process, the positive electrode post is welded to the positive current collector. During welding, a support member passes through the center of the cell to support the positive current collector located at the end of the cell. After welding is completed, the support member is controlled to separate from the positive current collector, and the separation tension between the weld point on the positive electrode post and the positive current collector and the welding support member is measured to determine whether welding defects such as melt-through have occurred. Figure 3 As shown, the battery includes a casing 31, a battery cell 32 disposed inside the casing 31, and a positive current collector 33 disposed at one end of the casing 31. During the process of welding the positive terminal 34 to the positive current collector 33, the welding support 35 can hold one end of the positive current collector 33, thus providing stability during the welding of the positive terminal 34 to the other end of the positive current collector 33. Specifically, the welding support 35 can pass through the center of the battery cell 32 and support the positive current collector 33 disposed at the end of the battery cell 32. The top of the positive current collector 33 is used for welding the positive terminal 34, forming a solder joint 38. Alternatively, in one scenario, it can also be applied to... Figure 3In the scene after 180-degree rotation, the positive pole 34 is arranged below the positive busbar 33, the welding support 35 can pass through the center of the battery cell 32 and support the positive busbar 33 arranged at the end of the battery cell 32 downward, and the positive pole 34 is welded below the positive busbar 33 to form a welding point 38. Specifically, the welding can be laser welding.

[0056] In the embodiment, the welding support 35 can be provided with a tension detection module 36, and the welding support 35 can be controlled to extend and retract through a control device 37, wherein the tension detection module 36 is in communication connection with the control device 37. The tension detection module 36 can be realized by a tension sensor or by a servo motor and corresponding control logic.

[0057] Specifically, when the welding of the positive pole 34 on the positive busbar 33 is completed by the welding device, the welding support 35 can be controlled to separate from the positive busbar 33 by the control device 37, that is, the welding support 35 is controlled to retract, and the separation tension when the welding support 35 separates from the positive busbar 33 is collected by the tension detection module 36, so that whether the welding of the positive pole 34 on the positive busbar 33 is qualified or not can be judged according to the separation tension.

[0058] Specifically, when the separation tension is less than a set tension threshold, it can be determined that the welding is qualified, and then the battery with the welded positive pole 34 can be controlled to be transmitted to the next process. When the separation tension is greater than or equal to the set tension threshold, it can be determined that the welding is unqualified, and then the battery with unqualified welding can be controlled to be transmitted to an unqualified area. Thus, comprehensive and nondestructive detection of the welding of the battery can be realized, and closed-loop control of the welding quality of the battery can also be realized.

[0059] In addition, a corresponding relationship between the welded battery and the corresponding separation tension can be stored, or the corresponding relationship can be transmitted to a remote device, so as to facilitate traceability and quality statistical management.

[0060] It should be understood that, although each step in the flowchart involved in each of the above embodiments is displayed in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in the flowchart involved in each of the above embodiments can include multiple steps or stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or steps or stages in other steps.

[0061] Based on the same inventive concept, the embodiments of the present application also provide a welding device for implementing the welding method described above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more welding device embodiments provided below can refer to the limitations of the welding method described above, which will not be repeated here.

[0062] In one embodiment, as shown in Figure 4 A welding device is provided, comprising: a welding module 402, a control module 404, a pulling force acquisition module 406, and a qualification determination module 408, wherein:

[0063] The welding module 402 is configured to weld a first welding target and a second welding target; the first welding target is supported by a support;

[0064] The control module 404 is configured to control the support to separate from the first welding target when the welding of the first welding target and the second welding target is completed;

[0065] The pulling force acquisition module 406 is configured to acquire a separation pulling force when the support separates from the first welding target;

[0066] The qualification determination module 408 is configured to determine whether the welding of the first welding target and the second welding target is qualified according to the separation pulling force.

[0067] In one embodiment, the qualification determination module is further configured to: determine that the welding of the first welding target and the second welding target is qualified when the separation pulling force is less than a set pulling force threshold; and determine that the welding of the first welding target and the second welding target is unqualified when the separation pulling force is greater than or equal to the set pulling force threshold.

[0068] In one embodiment, the device further comprises a product transmission module configured to: transmit the qualified welded target to a next process when it is determined that the welding of the first welding target and the second welding target is qualified; and transmit the welded target to an unqualified area when it is determined that the welding of the first welding target and the second welding target is unqualified.

[0069] In one embodiment, the device further comprises a storage module configured to store a corresponding relationship between the first welding target and the separation pulling force.

[0070] In an embodiment, the pulling force acquisition module is further configured to: acquire a separation pulling force detected by a pulling force sensor when the support is separated from the first welding target; or acquire a separation pulling force detected by a servo motor when the support is separated from the first welding target.

[0071] In an embodiment, the first welding target is a current collector, and / or the second welding target is a pole.

[0072] In an embodiment, when the first welding target is a current collector, the support passes through the center of the battery cell to support the current collector arranged at the end of the battery cell.

[0073] The above welding device can be implemented by software, hardware, or a combination thereof. The above modules can be embedded in or independent of a processor in a computer device in hardware form, or stored in a memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to the above modules.

[0074] In an embodiment, a battery is also provided, which includes a current collector and a pole, and the current collector and the pole are welded by the welding method shown in the embodiment. Figures 1 to 3 The welding method shown in the embodiment.

[0075] In an embodiment, a welding device is provided, which can be a terminal, and an internal structure diagram of the terminal can be as shown in the embodiment. Figure 5The welding device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. The processor of the welding device is configured to provide computing and control capabilities. The memory of the welding device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for running the operating system and the computer program in the non-volatile storage medium. The input / output interface of the welding device is configured to exchange information between the processor and external devices. The communication interface of the welding device is configured to perform wired or wireless communication with external terminals. The wireless communication can be achieved through WIFI, mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by the processor to implement a welding method. The display unit of the welding device is configured to form a visually visible screen, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the welding device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the housing of the welding device, or an external keyboard, touchpad or mouse, etc.

[0076] Those skilled in the art can understand that, Figure 5 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the welding device to which the scheme of the present application is applied. The specific welding device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0077] In one embodiment, a welding device is provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the following steps:

[0078] welding a first welding target and a second welding target; the first welding target is supported by a support;

[0079] After the welding of the first welding target and the second welding target is completed, the support is controlled to be separated from the first welding target;

[0080] The separation tension when the support is separated from the first welding target is obtained;

[0081] According to the separation tension, it is determined whether the welding of the first welding target and the second welding target is qualified.

[0082] In one embodiment, the processor, when executing the computer program, further implements the following steps: determining that the first welding target and the second welding target are qualified when the separation tension is less than a set tension threshold; and determining that the first welding target and the second welding target are unqualified when the separation tension is greater than or equal to the set tension threshold.

[0083] In one embodiment, the processor, when executing the computer program, further implements the following steps: transmitting the qualified welded target to a next process when it is determined that the first welding target and the second welding target are qualified; and transmitting the welded target to an unqualified area when it is determined that the first welding target and the second welding target are unqualified.

[0084] In one embodiment, the processor, when executing the computer program, further implements the following steps: storing the correspondence between the first welding target and the separation tension.

[0085] In one embodiment, the processor, when executing the computer program, further implements the following steps: detecting the separation tension when the support and the first welding target are separated by a tension sensor, and obtaining the separation tension detected by the tension sensor; or detecting the separation tension when the support and the first welding target are separated by a servo motor, and obtaining the separation tension detected by the servo motor.

[0086] In one embodiment, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program. The computer program, when executed by a processor, implements the following steps:

[0087] welding a first welding target and a second welding target; the first welding target is supported by a support;

[0088] after the welding of the first welding target and the second welding target is completed, controlling the support to separate from the first welding target;

[0089] obtaining a separation tension when the support and the first welding target are separated;

[0090] determining whether the welding of the first welding target and the second welding target is qualified according to the separation tension.

[0091] In one embodiment, the processor, when executing the computer program, further implements the following steps: determining that the first welding target and the second welding target are qualified when the separation tension is less than a set tension threshold; and determining that the first welding target and the second welding target are unqualified when the separation tension is greater than or equal to the set tension threshold.

[0092] In one embodiment, the computer program, when executed by the processor, further implements the following steps: when it is determined that the welding of the first welding target and the second welding target is qualified, transmitting the qualified welded target to a next process; and when it is determined that the welding of the first welding target and the second welding target is unqualified, transmitting the welded target to an unqualified area.

[0093] In one embodiment, the computer program, when executed by the processor, further implements the following steps: storing the correspondence between the first welding target and the separation tension.

[0094] In one embodiment, the computer program, when executed by the processor, further implements the following steps: detecting the separation tension when the support and the first welding target are separated by a tension sensor, and obtaining the separation tension detected by the tension sensor; or detecting the separation tension when the support and the first welding target are separated by a servo motor, and obtaining the separation tension detected by the servo motor.

[0095] In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the following steps:

[0096] welding a first welding target and a second welding target; the first welding target is supported by a support;

[0097] after the welding of the first welding target and the second welding target is completed, controlling the support to separate from the first welding target;

[0098] obtaining a separation tension when the support and the first welding target are separated;

[0099] determining whether the welding of the first welding target and the second welding target is qualified according to the separation tension.

[0100] In one embodiment, the computer program, when executed by the processor, further implements the following steps: when the separation tension is less than a set tension threshold, determining that the welding of the first welding target and the second welding target is qualified; and when the separation tension is greater than or equal to the set tension threshold, determining that the welding of the first welding target and the second welding target is unqualified.

[0101] In one embodiment, the computer program, when executed by the processor, further implements the following steps: when it is determined that the welding of the first welding target and the second welding target is qualified, transmitting the qualified welded target to a next process; and when it is determined that the welding of the first welding target and the second welding target is unqualified, transmitting the welded target to an unqualified area.

[0102] In one embodiment, the computer program, when executed by the processor, further implements the following steps: storing the correspondence between the first welding target and the separation tension.

[0103] In one embodiment, the computer program, when executed by the processor, further implements the following steps: detecting the separation tension when the support and the first welding target are separated by a tension sensor, and obtaining the separation tension detected by the tension sensor; or detecting the separation tension when the support and the first welding target are separated by a servo motor, and obtaining the separation tension detected by the servo motor.

[0104] It can be understood by those skilled in the art that all or part of the processes in the above-mentioned embodiments can be completed by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. Any reference to memory, database or other medium in the embodiments provided by the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided by the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided by the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0105] Any combination of the technical features in the above embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, any combination of the technical features is deemed to be within the scope of the present disclosure as long as there is no inconsistency.

[0106] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A welding method, characterized in that, The method includes: Welding a first welding target and a second welding target; the first welding target is supported by a support member; After welding the first welding target and the second welding target is completed, the support component is controlled to separate from the first welding target; Obtain the separation tension when the support separates from the first welding target; The welding qualification of the first welding target and the second welding target is determined based on the separation tensile force. The step of determining whether the welding of the first welding target and the second welding target is qualified based on the separation tensile force includes: When the separation tension is less than the set tension threshold, the welding of the first welding target and the second welding target is determined to be qualified; When the separation tension is greater than or equal to the set tension threshold, the welding of the first welding target and the second welding target is determined to be unqualified. The first welding target is the current collector, and the second welding target is the electrode post. The first welding target is supported by a support member, which includes: welding the electrode post to form a weld point on one side of the current collector, and the support member passing through the center of the cell to support the other side of the current collector set at the end of the cell.

2. The method according to claim 1, characterized in that, The step of obtaining the separation tension when the support separates from the first welding target includes: The separation tension detected by the tension sensor is obtained by detecting the separation tension when the support separates from the first welding target; or... The separation tension detected by the servo motor is obtained by detecting the separation tension when the support component separates from the first welding target.

3. The method according to claim 1, characterized in that, The method further includes: When the welding of the first welding target and the second welding target is determined to be qualified, the qualified welded target is transferred to the next process; the welded target is the overall target obtained after welding the first welding target and the second welding target. When it is determined that the welding of the first welding target and the second welding target is unqualified, the welded target is transferred to the unqualified area.

4. The method according to claim 1, characterized in that, After obtaining the separation tension when the support separates from the first welding target, the method further includes: The correspondence between the welded target and the separation tension is stored, wherein the welded target is the overall target obtained after welding the first welded target and the second welded target.

5. The method according to claim 1, characterized in that, The step of obtaining the separation tension when the support separates from the first welding target includes: The separation tension detected by the tension sensor is obtained by detecting the separation tension when the support separates from the first welding target.

6. The method according to claim 1, characterized in that, The step of obtaining the separation tension when the support separates from the first welding target includes: The separation tension detected by the servo motor is obtained by detecting the separation tension when the support component separates from the first welding target.

7. A welding apparatus, characterized in that, The apparatus is used in the welding method according to any one of claims 1 to 6, the apparatus comprising: A welding module is used to weld a first welding target and a second welding target; the first welding target is supported by a support member. The control module is used to control the support to separate from the first welding target when the welding of the first welding target and the second welding target is completed; A tension acquisition module is used to acquire the separation tension when the support separates from the first welding target; The qualification determination module is used to determine whether the welding of the first welding target and the second welding target is qualified based on the separation tension.

8. A welding apparatus, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 6.

Images