A laser welding control method, apparatus, equipment and storage medium

Abstract

This invention discloses a laser welding control method, apparatus, device, and storage medium. The laser welding control method includes: acquiring a first welding frequency, a total number of weld points, a weld point length, and a total welding path length; determining the overlap length between two adjacent weld points based on the total number of weld points, the weld point length, and the total welding path length; determining a second welding frequency based on the weld point length, the first welding frequency, the overlap length, and the length of the welding path of the overlapping portion between two adjacent weld points located at an inflection point of the welding path; and controlling the laser welding to be performed at the second welding frequency at the inflection point of the welding path.

Description

Technical Field

[0001] The embodiments of the present invention relate to automatic control technology, and more particularly to a laser welding control method, apparatus, equipment and storage medium. Background Technology

[0002] To effectively prevent aging and air leakage at the sealing point, and to enhance sealing, connection tightness, and stability, battery packaging typically employs laser sealing technology. The advantages of laser welding include continuous operation without downtime, stable welding, high-quality battery sealing, and high flexibility. However, the challenges of this process lie in the high precision required for workpiece assembly and the precise positioning of the laser beam on the workpiece. Especially at the corners of the cover plate, excessive heat accumulation in the weld can lead to excessive material melting, resulting in uneven weld protrusions. Excessive heat input can also cause slag or pinholes, reducing weld quality. Summary of the Invention

[0003] This invention provides a laser welding control method, apparatus, equipment, and storage medium to ensure the welding quality of cover plates at corners.

[0004] In a first aspect, embodiments of the present invention provide a laser welding control method, comprising:

[0005] Obtain the first welding frequency, the total number of weld points, the length of the weld points, and the total length of the welding path;

[0006] The overlap length between two adjacent weld points is determined based on the total number of weld points, the length of each weld point, and the total length of the welding path.

[0007] The second welding frequency is determined based on the length of the weld joint, the first welding frequency, the overlap length, and the length of the welding path of the overlapping portion between two adjacent weld joints located at the inflection point of the welding path.

[0008] At the inflection point of the welding path, laser welding is performed using the second welding frequency.

[0009] Optionally, the total number of solder joints can be determined using the following formula:

[0010]

[0011] In the formula, N is the total number of weld points, Q is the total welding energy, q is the power of a single weld point, and η is the thermal efficiency.

[0012] Optionally, the overlap length between two adjacent solder joints can be determined using the following formula:

[0013]

[0014] In the formula, l is the overlap length, D is the length of the weld point, L1 is the total length of the welding path, and N is the total number of weld points.

[0015] Optionally, the second welding frequency can be determined using the following formula:

[0016]

[0017] In the formula, f2 is the second welding frequency, D is the length of the weld point, f1 is the first welding frequency, L is the length of the welding path of the overlapping part between two adjacent weld points located at the inflection point, and l is the overlap length.

[0018] Optionally, the welding single-point power is the minimum power required to achieve a preset penetration depth for a single weld point during laser welding.

[0019] Optionally, the total welding energy can be determined using a preset diagram or table based on the structure, material, and welding path of the component to be welded.

[0020] Optionally, the laser welding is controlled to be performed at a uniform speed along the welding path.

[0021] Secondly, embodiments of the present invention also provide a laser welding control device, including a laser welding control unit, the laser welding control unit being used for:

[0022] Obtain the first welding frequency, the total number of weld points, the length of the weld points, and the total length of the welding path;

[0023] The overlap length between two adjacent weld points is determined based on the total number of weld points, the length of each weld point, and the total length of the welding path.

[0024] The second welding frequency is determined based on the diameter of the weld joint, the first welding frequency, the overlap length, and the center distance between two adjacent weld joints.

[0025] At the inflection point of the welding path, laser welding is performed using the second welding frequency.

[0026] Thirdly, embodiments of the present invention also provide an electronic device, including at least one processor and a memory communicatively connected to the at least one processor;

[0027] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform any of the laser welding control methods described in the embodiments of the present invention.

[0028] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing computer instructions, which are used to cause a processor to execute any of the laser welding control methods described in the embodiments of the present invention.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention proposes a laser welding control method, in which, based on the first welding frequency used at non-inflection point positions, the laser frequency is adjusted based on the first welding frequency at the inflection point to generate a second welding frequency. This satisfies the requirement that, when the laser welding gun travels at a constant speed, the laser is output at a specific position on the welding path with an inflection point, so that the weld width and depth at the inflection point position are the same as those at the non-inflection point position, and both can meet the optimal welding process requirements. This avoids the problem of excessive heat accumulation at the inflection point position leading to reduced welding quality and improves the weld quality at corners. Attached Figure Description

[0030] Figure 1 This is a flowchart of the laser welding control method in the embodiment;

[0031] Figure 2 This is a schematic diagram of the welding path in the embodiment;

[0032] Figure 3 This is a schematic diagram of the overlapping solder joints in the embodiment;

[0033] Figure 4 This is a schematic diagram of the welding path of the overlapping part between two adjacent weld points at the inflection point in the embodiment.

[0034] Figure 5 This is a flowchart of another laser welding control method in the embodiment;

[0035] Figure 6 This is a flowchart of another laser welding control method in the embodiments;

[0036] Figure 7 This is a schematic diagram of the electronic device structure in the embodiment. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0038] Example 1

[0039] Figure 1 This is a flowchart of the laser welding control method in the embodiment, for reference. Figure 1Laser welding control methods include:

[0040] S1. Obtain the first welding frequency, the total number of weld points, the length of the weld points, and the total length of the welding path.

[0041] In this embodiment, the welding scenario is set as a laser welding-related scenario, and the corresponding welding equipment includes a laser welding gun.

[0042] Figure 2 This is a schematic diagram of the welding path in the embodiment, for reference. Figure 2 In this embodiment, the welding path is used to represent the travel path of a specified laser welding gun in a component to be welded, and laser welding is performed on the path as the laser welding gun moves along the travel path.

[0043] In this embodiment, the welding path is set to include at least a straight welding path and a curved welding path, wherein the curved welding path may include one or more inflection points.

[0044] In this embodiment, the first welding frequency, the total number of weld points, the length of the weld points, and the total length of the welding path are set to preset values.

[0045] In this embodiment, the length of the weld point is defined as the straight line length between the two intersection points of the weld point's edge and the welding path.

[0046] In this embodiment, a first welding frequency is set as the laser frequency used to generate weld points that do not have inflection points.

[0047] S2. Determine the overlap length between two adjacent weld points based on the total number of weld points, the length of each weld point, and the total length of the welding path.

[0048] Figure 3 This is a schematic diagram of the solder joint overlap in the embodiment, for reference. Figure 3 In this embodiment, it is assumed that each solder joint has the same shape (including size), and it is set that when two adjacent solder joints have overlapping parts, the area of ​​the overlapping parts of different groups of solder joints is the same.

[0049] In this embodiment, the overlap length of two adjacent weld points is the straight line length between the first intersection point and the second intersection point. The first intersection point and the second intersection point are two nearby intersection points of the sides of the two adjacent weld points on the welding path, and the overlap length is the length of line segment a.

[0050] For example, in this embodiment, the overlap length can be determined by a geometric formula based on the total number of solder joints, the diameter of the solder joints, and the total length of the welding path. There is no limitation on the geometric formula used, which can be freely set according to requirements.

[0051] S3. Determine the second welding frequency based on the length of the weld joint, the first welding frequency, the overlap length, and the length of the welding path of the overlapping portion between two adjacent weld joints at the inflection point of the welding path.

[0052] In this embodiment, the inflection point is used to represent the point where the curvature of the laser welding gun changes abruptly in the direction of the welding path.

[0053] In this embodiment, the method for determining whether there is an inflection point on the welding path is not specifically limited. For example, the presence of an inflection point on the welding path can be determined by image analysis methods (such as Hough transform).

[0054] Alternatively, the image corresponding to the welding path can be used as input, and a pre-trained neural network model can be used to determine whether there are inflection points on the welding path.

[0055] Figure 4 This is a schematic diagram of the welding path for the overlapping portion between two adjacent weld points at the inflection point in the embodiment. (Refer to...) Figure 4 Line segment b represents the portion of the welding path that includes the inflection point. The length of the welding path is the length of the overlapping portion between two adjacent weld points at the inflection point of the welding path.

[0056] In this embodiment, the method of determining the second welding frequency based on the length of the weld joint, the first welding frequency, the overlap length, and the length of the welding path of the overlapping part between two adjacent weld joints at the inflection point of the welding path is not limited. The corresponding second welding frequency can be determined by calibration test, simulation test or experience.

[0057] S4. At the inflection point of the welding path, control the laser welding to use the second welding frequency.

[0058] In this embodiment, the second welding frequency is different from the first welding frequency. The second welding frequency is used as the laser frequency of the laser welding gun when welding is performed at the inflection point on the welding path of the laser welding gun.

[0059] This embodiment proposes a laser welding control method. In this method, based on the first welding frequency used at non-inflection point positions, the laser frequency is adjusted at the inflection point to generate a second welding frequency. This satisfies the requirement that, when the laser welding gun travels at a constant speed, the laser is output at a specific position on the welding path with an inflection point. This ensures that the weld width and depth at the inflection point are the same as those at the non-inflection point, and both meet the optimal welding process requirements. This avoids the problem of excessive heat accumulation at the inflection point, which leads to reduced welding quality and improves the quality of welds at corners.

[0060] Figure 5 This is a flowchart of another laser welding control method in the embodiment, for reference. Figure 5 In one possible implementation, the method includes:

[0061] S101. Obtain the total welding energy, the power of a single welding point, the total length of the welding path, and the first welding frequency on the straight welding path.

[0062] In this embodiment, the welding scenario is set as a laser welding-related scenario, and the corresponding welding equipment includes a laser welding gun.

[0063] In this embodiment, the welding path is used to represent the travel path of a specified laser welding gun in a component to be welded, and laser welding is performed on the path as the laser welding gun moves along the travel path.

[0064] In this embodiment, the welding path is set to include at least a straight welding path and a curved welding path, wherein the curved welding path may include one or more inflection points.

[0065] In this embodiment, the total welding energy is used to represent the total energy required to melt (laser) the welding material (such as metal powder on the welding path; or the material of the component to be welded at the weld point) when completing the welding of the specified welding path.

[0066] In this embodiment, the output power of the laser welding gun when generating each (laser) weld point is represented by the welding single-point power.

[0067] In this embodiment, the total length of the welding path is used to represent the length of the welding path, that is, the total length from the starting point of the welding path to the ending point of the welding path.

[0068] In this embodiment, the first welding frequency is used to represent the laser (pulse) frequency of the laser welding gun for each (laser) weld point on a straight welding path.

[0069] In this embodiment, for a component to be welded and a welding path thereon, the total welding energy, the power of a single welding point, the total length of the welding path, and the first welding frequency are set to preset values.

[0070] Among them, when the components to be welded are different, the corresponding total welding energy, welding single-point power, welding path total length and first welding frequency can be changed accordingly.

[0071] In this embodiment, the solder joint is set to a circular solder joint.

[0072] S102. Determine the total number of weld points on the welding path based on the total welding energy and the power of a single welding point.

[0073] In this embodiment, the method of determining the total number of weld points on the welding path based on the total welding energy and the power of a single welding point is not limited. For a welding path on a component to be welded, the total number of weld points can be determined by setting a welding quality standard and calibrating the corresponding welding point through calibration tests.

[0074] Alternatively, a function model can be determined through simulation experiments, taking the total welding energy and the power of a single welding point as inputs, and the total number of welding points can be determined through the function model.

[0075] Alternatively, a trained neural network model or machine learning model can be used, taking the total welding energy and the power of a single welding point as inputs, to determine the total number of corresponding welding points.

[0076] S103. Determine the overlap length of two adjacent circular weld points based on the total number of weld points, the diameter of the circular weld points, and the total length of the welding path.

[0077] For example, in this embodiment, the diameter of the circular weld point is set to be related to the welding power of a single point. When the welding power of a single point, the structure of the component to be welded, and the material are determined, the diameter of the circular weld point is determined accordingly.

[0078] The relationship between the diameter of a circular weld point and the power of a single weld point can be determined through calibration tests, simulation tests, or experience.

[0079] For example, in this embodiment, it is assumed that each circular solder joint has the same shape (including size), and it is set that when two adjacent circular solder joints have overlapping parts, the area of ​​the overlapping parts of different groups of circular solder joints is the same.

[0080] For example, in this embodiment, the overlap length of two adjacent circular solder joints is the straight line length between the first intersection point and the second intersection point. The first intersection point and the second intersection point are the two intersection points of the line connecting the centers of the two adjacent circular solder joints and the circumferences of the two circular solder joints, respectively.

[0081] For example, in this embodiment, when the total number of solder joints, the diameter of the circular solder joints, and the total length of the welding path are determined, the overlap length is a fixed value, which can be determined by a geometric relationship.

[0082] For example, in this embodiment, the geometric relationship used is not limited based on the total number of solder joints, the diameter of the circular solder joints, and the total length of the welding path; it can be freely set according to requirements.

[0083] S104. Determine the second welding frequency based on the diameter of the circular weld point, the first welding frequency, the overlap length, and the length of the welding path of the overlapping portion between two adjacent weld points at the inflection point of the welding path.

[0084] In this embodiment, the method of determining the second welding frequency based on the diameter of the circular weld point, the first welding frequency, the overlap length, and the length of the welding path of the overlapping part between two adjacent weld points at the inflection point of the welding path is not limited. The corresponding second welding frequency can be determined by calibration test, simulation test or experience.

[0085] In this embodiment, the second welding frequency is different from the first welding frequency. The second welding frequency is used as the laser frequency of the laser welding gun when the laser welding gun moves to the inflection point on the welding path and performs welding.

[0086] In this embodiment, the second welding frequency is set to at least satisfy the following:

[0087] When the laser welding gun travels at a preset speed and the power of the welding point is fixed, the laser is output at a specific position so that the laser acts evenly on the weld path, so as to avoid excessive heat accumulation at the inflection point, which would cause excessive melting of the material and result in slag or pinholes.

[0088] S105. At the inflection point of the welding path, control the laser welding to be performed using the second welding frequency.

[0089] In this embodiment, the inflection point is used to represent the point where the curvature of the laser welding gun changes abruptly in the direction of the welding path.

[0090] In this embodiment, the method for determining whether there is an inflection point on the welding path is not specifically limited. For example, the presence of an inflection point on the welding path can be determined by image analysis methods (such as Hough transform).

[0091] Alternatively, the image corresponding to the welding path can be used as input, and a pre-trained neural network model can be used to determine whether there are inflection points on the welding path.

[0092] In this embodiment, if the (laser) weld point covers the inflection point, when generating the (laser) weld point, the laser frequency of the laser welding gun is adjusted from the first welding frequency to the second welding frequency.

[0093] exist Figure 1 Based on the scheme shown, in one feasible implementation, the total number of solder joints is determined using the following formula:

[0094]

[0095] In the formula, N is the total number of weld points, Q is the total welding energy, q is the power of a single weld point, and η is the thermal efficiency.

[0096] Furthermore, when determining the total number of solder joints using the above formula, in one possible implementation, the overlap length between two adjacent circular solder joints is determined using the following formula:

[0097]

[0098] In the formula, l is the overlap length, D is the diameter of the circular weld point, L1 is the total length of the welding path, and N is the total number of weld points.

[0099] In this scheme, laser weld points are defined as circular weld points. Furthermore, based on the determined total number of weld points, there is an overlap between every two circular weld points along the welding path.

[0100] Furthermore, based on the above formula to determine the overlap length of two adjacent circular weld points, in one possible implementation, the second welding frequency is determined using the following formula:

[0101]

[0102] In the formula, f2 is the second welding frequency, D is the length of the circular weld point, f1 is the first welding frequency, L is the length of the welding path of the overlapping part between two adjacent weld points at the inflection point of the welding path, and l is the overlap length.

[0103] exist Figure 5 Based on the scheme shown, in one possible implementation, the welding power of a single point is set to the minimum power required for a single weld point to achieve a preset weld depth and / or weld width during laser welding.

[0104] For example, in this solution, in order to reduce heat input, the welding power at a single point is the minimum power to ensure penetration depth. When the structure and / or material of the components to be welded are different, the required penetration depth is different, and correspondingly, the required minimum power is also different.

[0105] For example, in this solution, the minimum power (i.e., single-point welding power) corresponding to generating a weld point (meeting welding requirements) for a specified component to be welded under specified penetration depth requirements can be determined through calibration tests, simulation tests, etc.

[0106] exist Figure 5 Based on the scheme shown, in one possible implementation, the total welding energy is determined by using a preset diagram or table according to the structure, material, and welding path of the component to be welded.

[0107] For example, in this embodiment, the total welding energy is different when the structure, material and / or welding path of the components to be welded are different;

[0108] Based on the quality requirements of welding, the correspondence between the structure, material, welding path and total welding energy of the component to be welded can be determined through calibration tests, and then the corresponding diagrams or tables can be determined. These diagrams or tables can be determined through calibration tests, simulation tests and other methods.

[0109] exist Figure 5 Based on the scheme shown, in one possible implementation, laser welding is controlled to be performed at a uniform speed along the welding path.

[0110] For example, in this solution, the laser welding gun is controlled to move at a constant speed according to a preset speed, whether it is performing welding work on a straight welding path or a curved welding path. That is, the speed of the laser welding gun on the straight welding path is the same as the speed on the curved welding path.

[0111] Figure 6 This is a flowchart of another laser welding control method in the embodiment, for reference. Figure 6 In one possible implementation, the laser welding control method includes:

[0112] S201. Obtain the total welding energy, welding single-point power, total welding path length, first welding frequency on the straight welding path, and laser welding torch travel speed.

[0113] In this scheme, after determining the structure and material of the component to be welded (e.g., battery cover) and the specified welding path, the total welding energy, welding single-point power, total welding path length, first welding frequency, and laser welding gun travel speed are the corresponding preset values.

[0114] In this scheme, the welding single-point power is the minimum power to ensure the penetration depth during laser welding for a single (laser) weld point. The value of the welding single-point power can be determined through calibration tests according to the structure and material of the components to be welded.

[0115] S202. Determine the total number of weld points on the welding path based on the total welding energy and the power of a single welding point.

[0116] In this scheme, the total number of solder joints is determined according to the following formula:

[0117]

[0118] In the formula, N is the total number of weld points, Q is the total welding energy, q is the power of a single weld point, and η is the thermal efficiency.

[0119] S203. Determine the overlap length of two adjacent circular weld points based on the total number of weld points, the diameter of the circular weld points, and the total length of the welding path.

[0120] In this scheme, the overlap length is determined according to the following formula:

[0121]

[0122] In the formula, l is the overlap length, D is the diameter of the circular weld point, L1 is the total length of the welding path, and N is the total number of weld points.

[0123] For example, in this embodiment, the diameter of the circular weld point can be determined based on the welding power of a single point, wherein the relationship between the diameter of the circular weld point and the welding power of a single point can be determined based on a calibration test.

[0124] S204. Determine the second welding frequency based on the diameter of the circular weld point, the first welding frequency, the overlap length, and the center distance between two adjacent circular weld points.

[0125] In this scheme, the second welding frequency is determined according to the following formula:

[0126]

[0127] In the formula, f2 is the second welding frequency, D is the length of the circular weld point, f1 is the first welding frequency, L is the length of the welding path of the overlapping part between two adjacent weld points at the inflection point of the welding path, and l is the overlap length.

[0128] S205. In a straight welding path, control the use of the first welding frequency for laser welding, and control the movement speed of the laser welding gun to be the laser welding gun travel speed.

[0129] S206. At the inflection point of the curved welding path, control the laser welding to use the second welding frequency, and control the movement speed of the laser welding gun to be the laser welding gun travel speed.

[0130] Combining steps S205 and S206, in this scheme, when the laser welding gun is set to generate a weld point at the inflection point of the straight welding path and the curved welding path, the power of the single welding point remains constant while the welding frequency is different.

[0131] Meanwhile, the laser welding gun is set to move at a constant speed on both straight and curved welding paths. That is, the speed of the laser welding gun remains constant along the welding path, always being the same as the speed at which the laser welding gun travels.

[0132] In this solution, for welding work on a specified welding path on a specified component to be welded, at the inflection point of the welding path, the laser frequency (welding frequency) of the laser welding gun is adjusted. Without changing the welding speed, the laser welding gun (generator) is controlled to output laser at a specific position, so that the laser acts evenly on the welding (weld) path, so that the penetration depth reaches the set optimal value. At the same time, the heat distribution of the cover plate weld is more uniform, and the overall morphology is more consistent.

[0133] Example 2

[0134] This embodiment proposes a laser welding control device, including a laser welding control unit, which is used for:

[0135] Obtain the first welding frequency, the total number of weld points, the diameter of the weld points, and the total length of the welding path;

[0136] The overlap length between two adjacent weld points is determined based on the total number of weld points, the diameter of the weld points, and the total length of the welding path.

[0137] The second welding frequency is determined based on the length of the weld joint, the first welding frequency, the overlap length, and the length of the welding path of the overlapping portion between two adjacent weld joints located at the inflection point of the welding path.

[0138] At the inflection point of the welding path, laser welding is performed using a second welding frequency.

[0139] In this embodiment, the laser welding control unit can be specifically configured to implement any one of the laser welding control methods in Embodiment 1. Its implementation process and beneficial effects are the same as the corresponding content recorded in Embodiment 1, and will not be repeated here.

[0140] Example 3

[0141] Figure 7 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0142] like Figure 7 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0143] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0144] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as laser welding control methods.

[0145] In some embodiments, the laser welding control method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the laser welding control method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the laser welding control method by any other suitable means (e.g., by means of firmware).

[0146] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0147] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0148] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0149] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0150] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0151] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0152] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A laser welding control method, characterized in that, include: Obtain the first welding frequency, the total number of weld points, the length of the weld points, and the total length of the welding path; The overlap length between two adjacent weld points is determined based on the total number of weld points, the length of each weld point, and the total length of the welding path. The second welding frequency is determined based on the length of the weld joint, the first welding frequency, the overlap length, and the length of the welding path of the overlapping portion between two adjacent weld joints located at the inflection point of the welding path. At the inflection point of the welding path, laser welding is performed using the second welding frequency. Before obtaining the first welding frequency, total number of weld points, length of weld points, and total length of welding path, the following is included: Obtain the total welding energy and the power of a single welding point, and determine the total number of weld points on the welding path based on the total welding energy and the power of a single welding point; The total number of solder joints is determined using the following formula: In the formula, This represents the total number of solder joints. The total welding energy, For single-point welding power, For thermal efficiency; The second welding frequency is determined using the following formula: In the formula, For the second welding frequency, The length of the solder joint. The first welding frequency, This represents the length of the welding path in the overlapping portion between two adjacent weld points located at the inflection point. This represents the overlap length.

2. The laser welding control method as described in claim 1, characterized in that, The overlap length between two adjacent weld points is determined using the following formula: In the formula, The overlap length is... The length of the solder joint. This represents the total length of the welding path. This represents the total number of solder joints.

3. The laser welding control method as described in claim 1, characterized in that, The welding single-point power is the minimum power required to achieve a preset penetration depth for a single weld point during laser welding.

4. The laser welding control method as described in claim 1, characterized in that, Based on the structure, material, and welding path of the component to be welded, the corresponding total welding energy is determined using a preset diagram or table.

5. The laser welding control method according to any one of claims 1 to 4, characterized in that, The laser welding is performed at a constant speed along the welding path.

6. A laser welding control device, characterized in that, For performing the laser welding control method as described in any one of claims 1-5, the laser welding control device includes a laser welding control unit, the laser welding control unit being used for: Obtain the first welding frequency, the total number of weld points, the length of the weld points, and the total length of the welding path; The overlap length between two adjacent weld points is determined based on the total number of weld points, the length of each weld point, and the total length of the welding path. The second welding frequency is determined based on the length of the weld joint, the first welding frequency, the overlap length, and the length of the welding path of the overlapping portion between two adjacent weld joints located at the inflection point of the welding path. At the inflection point of the welding path, laser welding is performed using the second welding frequency.

7. An electronic device, characterized in that, It includes at least one processor and a memory communicatively connected to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the laser welding control method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the laser welding control method according to any one of claims 1-5.

Images