Energy precision control method, system and equipment capable of automatically adjusting spiral laser beam track and storage medium of energy precision control method, system and equipment

Abstract

The invention provides an energy precision control method for automatically adjusting a spiral laser beam track, which comprises the following steps of: 1, selecting parameters from a preset welding parameter library according to a welding requirement and an iron plate material; secondly, the number and positions of welding points are calculated through a preset algorithm according to the welding requirement and the iron plate size, and the welding points serve as scanning targets of laser beams. The high-precision light path adjusting module is introduced and comprises the variable diaphragm, the focusing lens and the reflecting mirror, accurate control over the track of the laser beam can be achieved, automatic control over the light path adjusting mechanism can be achieved through the central processing module, and therefore the track of the laser beam can be adjusted conveniently and rapidly, and the laser beam tracking accuracy is improved. And the optimal laser beam track can be automatically planned through the track planning module, so that rapid and accurate adjustment is realized.

Description

Technical Field

[0001] The present invention relates to a laser control method, system, device and storage medium thereof, in particular to an energy precision control method, system, device and storage medium thereof for automatically adjusting the trajectory of a spiral laser beam, and belongs to the technical field of laser welding. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high energy density laser beam as a heat source. The principles of laser welding can be divided into heat conduction welding and laser deep penetration welding.

[0003] Heat conduction welding: When the laser power density is less than 10 4 -105W / cm 2 The laser radiation heats the surface to be processed, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool.

[0004] Laser deep melting welding: when the power density is greater than 105-107W / cm 2 When the metal surface is heated, it is sunken into a "hole", forming a deep fusion weld, which has the characteristics of fast welding speed and large depth-to-width ratio. Under the irradiation of laser with high enough power density, the material evaporates and forms a small hole. This small hole filled with steam is like a black body, absorbing almost all the energy of the incident beam. The equilibrium temperature in the cavity reaches about 2500℃. The heat is transferred from the outer wall of this high-temperature cavity, melting the metal surrounding the cavity.

[0005] In the existing laser welding process, there are still some problems in adjusting the laser beam trajectory and determining the welding point:

[0006] 1. Inconvenient to adjust the trajectory of the laser beam: The traditional laser welding system lacks a high-precision optical path adjustment mechanism, which makes the trajectory adjustment of the laser beam inflexible and inaccurate. In addition, adjusting the trajectory of the laser beam usually requires manual operation of multiple optical components, which increases the complexity and time cost of the operation.

[0007] 2. Inconvenient to determine welding points: Determining the reasonable number and location of welding points requires complex algorithms and calculations. Traditional methods cannot complete this task quickly and accurately. In addition, the determination of welding points currently often depends on the experience and skills of the operator, which in turn leads to unstable welding quality.

[0008] To this end, an energy precision control method, system, device and storage medium for automatically adjusting the trajectory of a spiral laser beam are proposed. Summary of the invention

[0009] In view of this, the embodiments of the present invention hope to provide an energy precision control method, system, device and storage medium for automatically adjusting the trajectory of a spiral laser beam, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0010] In order to solve the above technical problems, a technical solution adopted in the present application is: a method for automatically adjusting the energy accuracy control of the spiral laser beam trajectory, comprising the following steps:

[0011] Step 1: Select parameters from the preset welding parameter library according to welding requirements and iron plate materials;

[0012] Step 2: According to the welding requirements and the size of the iron plate, the number and position of the welding points are calculated through the preset algorithm, and the welding points are used as the scanning targets of the laser beam;

[0013] Step 3: Adjust the energy of the laser beam and the focal length of the focusing lens to control the welding depth;

[0014] Step 4: Adjust the angle of the reflector and the scanning speed of the laser beam to control the trajectory of the spiral laser beam;

[0015] Step 5: Adjust the laser beam parameters in real time based on the real-time feedback of welding data.

[0016] Further preferably, in step one, the parameters in the welding parameter library include laser power, scanning speed and welding depth.

[0017] Further preferably, in step 2, the algorithm for calculating the number and positions of welding points comprises the following steps:

[0018] S1: Establish a mathematical model based on the relationship between the number and location of welding points and welding quality;

[0019] S2: derive empirical formulas by statistics and analysis of historical actual welding data;

[0020] S3: Use linear programming optimization techniques to find the location and number of welding points under constraints;

[0021] S4: Use programming language to implement algorithm programming;

[0022] S5: Test the algorithm using simulated data or actual welding data to verify its effectiveness and accuracy;

[0023] S6: Adjust algorithm parameters according to test results to optimize algorithm performance;

[0024] S7: Integrate the algorithm into the control system's software.

[0025] Further preferably, in S3, the constraint conditions include a limit on the number of welding points and a size of the iron plate.

[0026] Further preferably, in step three, the energy of the laser beam is adjusted by pulse width modulation signal and duty cycle regulation to control the laser energy output.

[0027] Further preferably, in step three, the focal length of the focusing lens is adjusted by using an adjustment tool or a mechanical structure to fine-tune the degree of eccentricity of the lens, including rotating or moving the lens to change its position relative to the optical axis.

[0028] Further preferably, in step 4, the angle adjustment of the reflector includes sending an angle adjustment instruction to a driving unit of the reflector, and then the driving unit drives the reflector to rotate or tilt according to the received instruction to change the reflection direction of the laser beam;

[0029] The adjustment of the scanning speed of the laser beam includes adjusting the scanning speed instruction of the laser to control the dwell time and moving speed of the laser beam. The scanning speed of the laser beam is adjusted based on the laser power, material properties and processing requirements.

[0030] To solve the above technical problems, another technical solution adopted in the present application is: an energy precision control system for automatically adjusting the trajectory of a spiral laser beam, comprising a laser emission module, an optical path adjustment module, a central processing module, a trajectory planning module, a welding workbench and a monitoring module;

[0031] The signal sending end of the trajectory planning module is connected to the signal receiving end of the central processing module, the signal sending end of the central processing module is connected to the signal receiving end of the optical path adjustment module, the signal sending end of the optical path adjustment module is connected to the signal receiving end of the laser emitting module, the signal receiving end of the monitoring module is connected to the signal sending end of the laser emitting module, and the signal sending end of the monitoring module is connected to the signal receiving end of the central processing unit;

[0032] The laser emission module is used to generate and emit a laser beam of specific wavelength and power, and the laser emission module includes a laser and a laser power supply;

[0033] The optical path adjustment module is used to adjust the transmission angle, energy and thickness of the laser beam;

[0034] The optical path adjustment module includes a variable aperture, a focusing lens and a reflector;

[0035] The variable iris is used to adjust the thickness of the laser beam;

[0036] The focusing lens is used to adjust the focal position of the laser beam, change the position or focal length of the focusing lens, control the focusing depth and diameter of the laser beam on the iron plate, and adjust the welding depth and quality;

[0037] The reflector is used to change the transmission direction of the laser beam, and the angle of the reflector is adjusted so that the laser beam scans along a preset trajectory;

[0038] The trajectory planning module is used to calculate the reasonable number and position of welding points according to the welding requirements and the size of the iron plate, and generate the trajectory of the spiral laser beam;

[0039] The trajectory planning module sends the trajectory information to the central processing unit, and the central processing unit controls the optical path adjustment module to achieve precise control of the trajectory;

[0040] The monitoring module is used to monitor key parameters in the welding process in real time, including laser power, scanning speed and welding temperature;

[0041] The welding workbench is used to place the iron plate to be welded, and the welding workbench module includes a positioning device or a clamp for fixing the iron plate to be welded.

[0042] To solve the above technical problems, another technical solution adopted in the present application is: a computer device, which includes a processor and a memory coupled to the processor, wherein program instructions are stored in the memory, and when the program instructions are executed by the processor, the processor executes the steps of a method for automatically adjusting the energy accuracy control of the spiral laser beam trajectory as described above.

[0043] In order to solve the above technical problems, another technical solution adopted by the present application is: a storage medium storing program instructions capable of implementing an energy precision control method for automatically adjusting the trajectory of a spiral laser beam as described above.

[0044] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0045] 1. The present invention can achieve precise control of the laser beam trajectory by introducing a high-precision optical path adjustment module, including a variable aperture, a focusing lens and a reflector. The central processing module can realize automatic control of the optical path adjustment mechanism, thereby conveniently and quickly adjusting the laser beam trajectory. Moreover, the trajectory planning module can automatically plan the optimal laser beam trajectory, thereby achieving fast and precise adjustment.

[0046] 2. The present invention can automatically calculate the reasonable number and position of welding points according to welding requirements and iron plate size by utilizing a preset algorithm, monitor the key parameters of the welding process in real time through a monitoring module, and automatically adjust the position and number of welding points according to these parameters, thereby ensuring the stability of welding quality.

[0047] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 A flow chart of an energy precision control method for automatically adjusting the trajectory of a spiral laser beam according to the present invention;

[0050] Figure 2 A flow chart of an algorithm for calculating the number and location of welds of the present invention;

[0051] Figure 3 A schematic diagram of an energy precision control system for automatically adjusting the trajectory of a spiral laser beam according to the present invention;

[0052] Figure 4 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0053] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0054] It should be clear that the following embodiments of the present disclosure are described by specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other in the absence of conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0055] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0056] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0057] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0058] Figure 1 FIG. 1 is a flow chart of an energy precision control method for automatically adjusting the trajectory of a spiral laser beam according to an embodiment of the present invention. It should be noted that the method of the present application is not limited to the method of automatically adjusting the trajectory of a spiral laser beam according to an embodiment of the present invention. Figure 1 The process sequence shown is limited. Figure 1 As shown: A method for automatically adjusting the energy precision control of a spiral laser beam trajectory comprises the following steps:

[0059] Step 1: According to the welding requirements and iron plate materials, select parameters from the preset welding parameter library. The parameters in the welding parameter library include laser power, scanning speed and welding depth;

[0060] Step 2: According to the welding requirements and the size of the iron plate, the number and position of the welding points are calculated through the preset algorithm, and the welding points are used as the scanning targets of the laser beam;

[0061] Step 3: Adjust the energy of the laser beam and the focal length of the focusing lens to control the welding depth;

[0062] Step 4: Adjust the angle of the reflector and the scanning speed of the laser beam to control the trajectory of the spiral laser beam;

[0063] Step 5: Adjust the laser beam parameters in real time based on the real-time feedback of welding data.

[0064] like Figure 2 As shown, the algorithm for calculating the number and location of welding points includes the following steps:

[0065] S1: Establish a mathematical model based on the relationship between the number and location of welding points and welding quality;

[0066] S2: derive empirical formulas by statistics and analysis of historical actual welding data;

[0067] S3: Use linear programming optimization techniques to find the location and number of welding points under constraints;

[0068] S4: Use programming language to implement algorithm programming;

[0069] S5: Test the algorithm using simulated data or actual welding data to verify its effectiveness and accuracy;

[0070] S6: Adjust algorithm parameters according to test results to optimize algorithm performance;

[0071] S7: Integrate the algorithm into the control system's software.

[0072] In this embodiment, in S3, the constraints include the number limit of welding points and the size of the iron plate. By referring to the constraints, the position and number of welding points can be calculated more accurately.

[0073] In this embodiment, in step 3, the energy of the laser beam is adjusted, and the laser energy output is controlled by adjusting the pulse width modulation signal and the duty cycle. A larger laser power and a smaller focal length will produce a deeper welding depth, and vice versa. A shallower welding depth is produced;

[0074] Adjust the focal length of the focusing lens and use adjustment tools or mechanical structures to fine-tune the eccentricity of the lens, including rotating or moving the lens to change its position relative to the optical axis. Before and after adjustment, the change in the focal position will directly affect the processing results and efficiency. If the focal position deviates too much, the convergence effect of the laser beam will be reduced, and even the expected processing effect cannot be achieved.

[0075] In this embodiment, in step 4, the angle adjustment of the reflector includes sending an angle adjustment instruction to a driving unit of the reflector, and then the driving unit drives the reflector to rotate or tilt according to the received instruction to change the reflection direction of the laser beam. The angle adjustment of the reflector needs to be precisely controlled to ensure that the laser beam can scan according to a predetermined trajectory.

[0076] Adjustment of the scanning speed of the laser beam, including adjustment of the scanning speed instruction of the laser, control of the dwell time and movement speed of the laser beam. The scanning speed of the laser beam is adjusted based on the laser power, material properties and processing requirements;

[0077] In the process of realizing the spiral laser beam trajectory control, the angle adjustment of the reflector and the scanning speed control of the laser beam need to be carried out in coordination. The central processing unit needs to monitor and adjust the angle of the reflector and the scanning speed of the laser beam in real time to ensure that the laser beam can scan along the predetermined spiral trajectory.

[0078] Figure 3 Schematic diagram of the functional modules of an energy precision control system for automatically adjusting the trajectory of a spiral laser beam according to an embodiment of the present application. Figure 3 As shown, an energy precision control system for automatically adjusting the trajectory of a spiral laser beam comprises a laser emission module, an optical path adjustment module, a central processing module, a trajectory planning module, a welding workbench and a monitoring module;

[0079] The signal sending end of the trajectory planning module is connected to the signal receiving end of the central processing module, the signal sending end of the central processing module is connected to the signal receiving end of the optical path adjustment module, the signal sending end of the optical path adjustment module is connected to the signal receiving end of the laser emission module, the signal receiving end of the monitoring module is connected to the signal sending end of the laser emission module, and the signal sending end of the monitoring module is connected to the signal receiving end of the central processing unit;

[0080] The laser emission module is used to generate and emit a laser beam of a specific wavelength and power. The laser emission module includes a laser and a laser power supply. The laser is used to emit a laser beam, and the laser power supply is used to power the laser. The laser emission module is also provided with a cooling mechanism for dissipating heat from the laser to prevent damage caused by overheating of the laser.

[0081] The optical path adjustment module is used to adjust the transmission angle, energy and thickness of the laser beam;

[0082] The optical path adjustment module includes a variable aperture, a focusing lens and a reflecting mirror;

[0083] The variable aperture is used to adjust the thickness of the laser beam;

[0084] The focusing lens is used to adjust the focal position of the laser beam, change the position or focal length of the focusing lens, control the focusing depth and diameter of the laser beam on the iron plate, and adjust the welding depth and quality;

[0085] The reflector is used to change the transmission direction of the laser beam and adjust the angle of the reflector so that the laser beam scans along a preset trajectory;

[0086] The trajectory planning module is used to calculate the reasonable number and position of welding points according to the welding requirements and the size of the iron plate, and generate the trajectory of the spiral laser beam. The trajectory planning module is a microcontroller;

[0087] The trajectory planning module sends the trajectory information to the central processing unit, which controls the optical path adjustment module to achieve precise control of the trajectory. The central processing unit is the core of the entire system and is responsible for receiving instructions, controlling the laser emission module and the optical path adjustment module. The central processing unit also includes software parts, such as operating systems, control algorithms, etc., which are used to achieve precise control of the laser beam and trajectory planning;

[0088] The monitoring module is used to monitor the key parameters of the welding process in real time, including laser power, scanning speed and welding temperature. The monitoring module sends real-time data to the central processor, which adjusts the parameters and trajectory of the laser beam according to the feedback data to optimize the welding process.

[0089] The welding workbench is used to place the iron plates to be welded, and the welding workbench module includes a positioning device or a clamp for fixing the iron plates to be welded.

[0090] For other details about the technical solutions implemented by each module in the system of the above embodiment, please refer to the description of the energy accuracy control method for automatically adjusting the trajectory of the spiral laser beam in the above embodiment, which will not be repeated here.

[0091] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0092] The electronic device according to an embodiment of the present disclosure includes a memory and a processor. The memory is used to store non-temporary computer-readable instructions. Specifically, the memory may include one or more computer program products, and the computer program product may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may, for example, include a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may, for example, include a read-only memory (ROM), a hard disk, a flash memory, etc.

[0093] The processor may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device to perform desired functions. In one embodiment of the present disclosure, the processor is used to run the computer-readable instructions stored in the memory, so that the electronic device performs all or part of the steps of the energy accuracy control method for automatically adjusting the spiral laser beam trajectory of the aforementioned embodiments of the present disclosure.

[0094] Those skilled in the art should be able to understand that in order to solve the technical problem of how to obtain a good user experience, the present embodiment may also include well-known structures such as a communication bus and an interface, and these well-known structures should also be included in the protection scope of the present disclosure.

[0095] like Figure 4 The present invention provides a schematic diagram of the structure of an electronic device according to an embodiment of the present invention, which is suitable for implementing the electronic device in the embodiment of the present invention. Figure 4 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0096] like Figure 4 As shown, the electronic device may include a processor (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) or a program loaded from a storage device into a random access memory (RAM). In the RAM, various programs and data required for the operation of the electronic device are also stored. The processor, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0097] Typically, the following devices can be connected to the I / O interface: input devices such as sensors or visual information acquisition devices; output devices such as display screens; storage devices such as magnetic tapes and hard disks; and communication devices. The communication device can allow the electronic device to communicate with other devices (such as edge computing devices) wirelessly or by wire to exchange data. Figure 4An electronic device having various devices is shown, but it should be understood that it is not required to implement or possess all the devices shown. More or fewer devices may be implemented or possessed instead.

[0098] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device, or installed from a ROM. When the computer program is executed by a processor, all or part of the steps of an energy accuracy control method for automatically adjusting the trajectory of a spiral laser beam of an embodiment of the present disclosure are executed.

[0099] For detailed description of this embodiment, reference may be made to the corresponding descriptions in the aforementioned embodiments, which will not be repeated here.

[0100] The computer-readable storage medium according to the embodiment of the present disclosure stores non-transitory computer-readable instructions. When the non-transitory computer-readable instructions are executed by a processor, all or part of the steps of the energy precision control method for automatically adjusting the spiral laser beam trajectory of the above-mentioned embodiments of the present disclosure are executed.

[0101] The above-mentioned computer-readable storage media include, but are not limited to: optical storage media (e.g., CD-ROM and DVD), magneto-optical storage media (e.g., MO), magnetic storage media (e.g., magnetic tape or mobile hard disk), media with built-in rewritable non-volatile memory (e.g., memory card) and media with built-in ROM (e.g., ROM box).

[0102] For detailed description of this embodiment, reference may be made to the corresponding descriptions in the aforementioned embodiments, which will not be repeated here.

[0103] The basic principles of the present disclosure are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present disclosure are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present disclosure. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, and are not limitations. The above details do not limit the present disclosure to the necessity of adopting the above specific details to be implemented.

[0104] In the present disclosure, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. The block diagrams of the devices, devices, equipment, and systems involved in the present disclosure are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0105] Additionally, as used herein, "or" used in a list of items beginning with "at least one" indicates a separate list, so that, for example, a list of "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not mean that the example described is preferred or better than other examples.

[0106] It should also be noted that in the system and method of the present disclosure, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present disclosure.

[0107] Various changes, substitutions, and modifications of the techniques described herein may be made without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of the present disclosure is not limited to the specific aspects of the processes, machines, manufactures, compositions of events, means, methods, and actions described above. Currently existing or later to be developed processes, machines, manufactures, compositions of events, means, methods, or actions that perform substantially the same functions or achieve substantially the same results as the corresponding aspects described herein may be utilized. Thus, the appended claims include such processes, machines, manufactures, compositions of events, means, methods, or actions within their scope.

[0108] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0109] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A method for automatically adjusting the energy accuracy of a spiral laser beam trajectory, characterized in that: The following steps are involved: Step 1: Select parameters from the preset welding parameter library according to welding requirements and iron plate materials; Step 2: According to the welding requirements and the size of the iron plate, the number and position of the welding points are calculated through the preset algorithm, and the welding points are used as the scanning targets of the laser beam; Step 3: Adjust the energy of the laser beam and the focal length of the focusing lens to control the welding depth; Step 4: Adjust the angle of the reflector and the scanning speed of the laser beam to control the trajectory of the spiral laser beam; Step 5: Adjust the laser beam parameters in real time based on the real-time feedback of welding data.

2. The energy precision control method for automatically adjusting the spiral laser beam trajectory according to claim 1, characterized in that: In step one, the parameters in the welding parameter library include laser power, scanning speed and welding depth.

3. The energy precision control method for automatically adjusting the trajectory of a spiral laser beam according to claim 1, characterized in that: In step 2, the algorithm for calculating the number and location of welding points includes the following steps: S1: Establish a mathematical model based on the relationship between the number and location of welding points and welding quality; S2: Statistics and analysis of historical actual welding data to derive empirical formulas; S3: Use linear programming optimization techniques to find the location and number of welding points under constraints; S4: Use programming language to implement algorithm programming; S5: Test the algorithm using simulated data or actual welding data to verify its effectiveness and accuracy; S6: Adjust algorithm parameters according to test results to optimize algorithm performance; S7: Integrate the algorithm into the control system's software.

4. The energy precision control method for automatically adjusting the spiral laser beam trajectory according to claim 3, characterized in that: In S3, the constraints include the number limit of welding points and the size of the iron plate.

5. The energy precision control method for automatically adjusting the trajectory of a spiral laser beam according to claim 1, characterized in that: In step three, the energy of the laser beam is adjusted by pulse width modulation signal and duty cycle regulation to control the laser energy output.

6. The energy precision control method for automatically adjusting the spiral laser beam trajectory according to claim 1, characterized in that: In step three, the focal length of the focusing lens is adjusted by using an adjustment tool or a mechanical structure to fine-tune the eccentricity of the lens, including rotating or moving the lens to change its position relative to the optical axis.

7. The energy precision control method for automatically adjusting the trajectory of a spiral laser beam according to claim 1, characterized in that: In step 4, the angle adjustment of the reflector includes sending an angle adjustment instruction to a driving unit of the reflector, and then the driving unit drives the reflector to rotate or tilt according to the received instruction to change the reflection direction of the laser beam; The adjustment of the scanning speed of the laser beam includes adjusting the scanning speed instruction of the laser to control the dwell time and moving speed of the laser beam. The scanning speed of the laser beam is adjusted based on the laser power, material properties and processing requirements.

8. An energy precision control system for automatically adjusting the trajectory of a spiral laser beam, applied to the energy precision control method for automatically adjusting the trajectory of a spiral laser beam as claimed in any one of claims 1 to 7, characterized in that: It includes laser emission module, optical path adjustment module, central processing module, trajectory planning module, welding workbench and monitoring module; The signal sending end of the trajectory planning module is connected to the signal receiving end of the central processing module, the signal sending end of the central processing module is connected to the signal receiving end of the optical path adjustment module, the signal sending end of the optical path adjustment module is connected to the signal receiving end of the laser emitting module, the signal receiving end of the monitoring module is connected to the signal sending end of the laser emitting module, and the signal sending end of the monitoring module is connected to the signal receiving end of the central processing unit; The laser emission module is used to generate and emit a laser beam of specific wavelength and power, and the laser emission module includes a laser and a laser power supply; The optical path adjustment module is used to adjust the transmission angle, energy and thickness of the laser beam; The optical path adjustment module includes a variable aperture, a focusing lens and a reflector; The variable iris is used to adjust the thickness of the laser beam; The focusing lens is used to adjust the focal position of the laser beam, change the position or focal length of the focusing lens, control the focusing depth and diameter of the laser beam on the iron plate, and adjust the welding depth and quality; The reflector is used to change the transmission direction of the laser beam, and the angle of the reflector is adjusted so that the laser beam scans along a preset trajectory; The trajectory planning module is used to calculate the reasonable number and position of welding points according to welding requirements and iron plate size, and generate the trajectory of the spiral laser beam; The trajectory planning module sends the trajectory information to the central processing unit, and the central processing unit controls the optical path adjustment module to achieve precise control of the trajectory; The monitoring module is used to monitor key parameters in the welding process in real time, including laser power, scanning speed and welding temperature; The welding workbench is used to place the iron plate to be welded, and the welding workbench module includes a positioning device or a clamp for fixing the iron plate to be welded.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the energy accuracy control method for automatically adjusting the trajectory of a spiral laser beam as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, which are used to enable a computer to execute the energy precision control method for automatically adjusting the trajectory of a spiral laser beam as described in any one of claims 1-7.

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