Precision wire feeding laser welding control method, computer and storage medium

Abstract

The present application discloses a precision wire feeding laser welding control method, a computer and a storage medium. By establishing an electrical signal circuit, in the detection stage, it can give guidance to the wire feeding mechanism to perform the wire pre-feeding action so as to achieve good contact. In the welding execution stage, it can continuously obtain real-time electrical signals and thus monitor the welding process in real time. The precision wire feeding laser welding control method, computer and storage medium provided by the present invention play a key role in the electrical signal circuit for real-time monitoring of the contact state between the welding wire and the workpiece to be welded, ensuring the accuracy of wire feeding and the stability of the welding process, thereby improving the overall welding quality and efficiency. In the final stage of welding, the wire feeding mechanism is quickly instructed to perform the wire recovery action, which effectively avoids common defects at the end of welding and also reduces the possibility of abnormalities in the welding wire.

Description

Technical Field

[0001] The invention relates to the field of laser welding, and in particular to a precision wire feeding laser welding control method, a computer and a storage medium. Background Art

[0002] As an advanced connection method, laser (wire filling) welding technology has attracted wide attention due to its high precision, high efficiency and excellent welding quality. With the rapid development of the hot pressing industry, laser welding technology has also ushered in its golden age. This technology uses the high-density energy of the laser to locally heat the material to achieve melting and connection of the material, and is widely used in the automotive, aviation, electronics and other industries.

[0003] Although laser welding technology has many advantages, it also faces a series of technical challenges in its actual application. One of the key issues is the synergy between the wire feeding system and laser welding. During the laser welding process, the wire feeding system is responsible for accurately delivering the welding wire to the laser irradiation area so that it can work together with the heat of the laser to form a high-quality weld. The core challenge of the technology is that the high-density energy irradiation of the laser requires extremely high accuracy in wire feeding.

[0004] If the wire feeding system fails to synchronize precisely with the laser welding in the initial stage of welding, it may cause melting through or cold welding at the starting position of the weld (melting through is caused by the failure of the welding wire to arrive in time, causing the laser energy to over-melt the material, while cold welding is caused by improper adjustment of the laser power, which prevents the welding wire from fully melting into the weld).

[0005] In addition, at the end of the weld, due to the high-density energy irradiation of the laser, the welding wire may retract and form a weld nodule, affecting the appearance and performance of the weld. On the contrary, if the laser power is reduced to avoid the weld nodule, the welding wire may stick to the weldment and form a sticky wire phenomenon. These technical difficulties not only affect the quality of the weld, but also lead to frequent shutdowns during the production process for manual inspection and maintenance, which greatly reduces production efficiency and increases production costs. Therefore, in order to overcome these challenges and improve the stability and reliability of laser welding technology, the industry is working hard to develop a more precise wire feeding control system and optimize laser welding parameters to ensure production. Summary of the invention

[0006] The main purpose of the present invention is to provide a precision wire feeding laser welding control method, a computer and a storage medium, aiming to solve the problem of poor control of the welding wire during laser welding, resulting in poor welding effect.

[0007] In order to achieve the above object, the present invention provides a precision wire feeding laser welding control method, comprising:

[0008] S1, a preparation stage, electrically connecting the workpiece to be welded with an electric signal loop, and acquiring a real-time electric signal in the electric signal loop, wherein the electric signal loop is electrically connected to the welding wire;

[0009] S2, detection stage, driving the laser generating mechanism to the initial processing position, and controlling the wire feeding mechanism to perform wire pre-feeding action according to the real-time electrical signal obtained in this step, wherein the laser generating mechanism and the wire feeding mechanism have a common fixed base;

[0010] S3, welding start-up stage, controlling the timing of the laser generating mechanism starting to work according to the real-time electrical signal obtained in this step;

[0011] S4, welding execution stage, controlling the wire feeding mechanism to perform wire feeding action and controlling the laser generating mechanism to move according to a preset path to perform welding;

[0012] S5, at the end of welding, when the laser generating mechanism has completed its movement, the wire feeding mechanism is controlled to perform a wire recovery action and the laser generating mechanism is stopped at the same time;

[0013] Repeat the above steps S1 to S5.

[0014] Furthermore, the step of S3 includes:

[0015] Control the laser generating mechanism to move in the forward direction of the preset path. If the real-time electrical signal during the movement of the laser generating mechanism determines that the path is good, control the laser generating mechanism to return to the initial processing position, and control the laser generating mechanism to start working;

[0016] In the step S4, the movement of the laser generating mechanism is in the forward direction of the preset path.

[0017] Furthermore, the step of S3 includes:

[0018] Control the laser generating mechanism to move in the forward direction along the preset path. If the real-time electrical signal during the movement of the laser generating mechanism determines that the path is good, the laser generating mechanism is controlled to start working;

[0019] In the step S4, the movement of the laser generating mechanism is in the reverse direction of the preset path.

[0020] Furthermore, the step S3 includes:

[0021] If the real-time electrical signal during the movement of the laser generating mechanism determines that the path is bad, a path abnormality analysis is given based on the real-time electrical signal obtained in this step.

[0022] Furthermore, a shearing mechanism is provided at the output end of the wire feeding mechanism, and the step S1 includes:

[0023] The shearing mechanism is controlled to shear the free end of the welding wire.

[0024] Furthermore, in the wire recovery action in step S5, the size of the recovered wire is 2 mm to 3 mm exposed from the wire feeding mechanism and the speed of the wire recovery is 20 to 30 cm per second.

[0025] Furthermore, the step of S4 includes:

[0026] The wire feeding mechanism is controlled to perform the wire feeding action and the laser generating mechanism is controlled to move along a preset path to perform welding, and the welding effect is judged according to the real-time electrical signal obtained in this step.

[0027] The present invention also provides a device for running the above-mentioned precision wire feeding laser welding control method, comprising:

[0028] A welding terminal, comprising a driving seat and a laser generating mechanism and a wire feeding mechanism arranged on the driving seat;

[0029] A clamping mechanism, used for clamping the workpiece to be welded;

[0030] An electrical signal circuit, wherein two output ends are electrically connected to the workpiece to be welded and the welding wire in the wire feeding mechanism respectively;

[0031] The processor is electrically connected to the welding terminal, the clamping mechanism and the electric signal loop. The processor receives the real-time electric signal in the electric signal loop and controls the operation of the welding terminal and the clamping mechanism.

[0032] The present invention also provides a computer, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned precision wire feeding laser welding control method when executing the computer program.

[0033] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned precision wire feeding laser welding control method are implemented.

[0034] The precision wire feeding laser welding control method, computer and storage medium provided by the present invention can provide guidance for the wire feeding mechanism to perform the wire pre-feeding action to achieve good contact in the detection stage through the establishment of an electrical signal circuit, and continuously obtain real-time electrical signals in the welding execution stage, thereby also being able to monitor the welding process in real time; the electrical signal circuit that monitors the contact state between the welding wire and the workpiece to be welded in real time plays a key role, ensuring the accuracy of wire feeding and the stability of the welding process, thereby improving the overall welding quality and efficiency; in the final stage of welding, the wire feeding mechanism is quickly instructed to perform the wire recovery action, effectively avoiding common defects at the end of welding, and also reducing the possibility of abnormalities in the welding wire; through the above characteristics, the feeding of the welding wire can be tracked and adjusted in real time to ensure the precise position of the welding wire during the welding process, thereby improving the welding quality. This real-time monitoring and intelligent adjustment mechanism significantly reduces welding defects, reduces the frequency of rework and repair, and improves production efficiency and product consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Schematic diagram of the steps of the precision wire feeding laser welding control method of the first embodiment of the present invention;

[0036] Figure 2 It is a schematic diagram of a device for running a precision wire feeding laser welding control method according to a second embodiment of the present invention.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0039] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0040] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0041] Reference Figure 1 In one embodiment of the present invention, a precision wire feeding laser welding control method includes:

[0042] S1, preparation stage, electrically connecting the workpiece 210 to be welded with the electric signal loop 300, and acquiring the real-time electric signal in the electric signal loop 300, wherein the electric signal loop 300 is electrically connected to the welding wire 131;

[0043] S2, detection stage, driving the laser generating mechanism 120 to the initial processing position, and controlling the wire feeding mechanism 130 to perform wire pre-feeding action according to the real-time electrical signal obtained in this step, wherein the laser generating mechanism 120 and the wire feeding mechanism 130 have a common fixed base;

[0044] S3, welding start-up stage, controlling the timing of the laser generating mechanism 120 starting to work according to the real-time electrical signal obtained in this step;

[0045] S4, welding execution stage, controlling the wire feeding mechanism 130 to perform wire feeding action and controlling the laser generating mechanism 120 to move according to a preset path to perform welding;

[0046] S5, the final stage of welding, when the laser generating mechanism 120 has finished moving, the wire feeding mechanism 130 is controlled to perform a wire recovery action and the laser generating mechanism 120 is stopped at the same time;

[0047] Repeat the above steps S1 to S5.

[0048] In the prior art, at the end position of the weld, due to the high-density energy irradiation of the laser, the welding wire may retract and form a weld nodule, affecting the appearance and performance of the weld; on the contrary, if the laser power is reduced to avoid the weld nodule, the welding wire may stick to the weldment and form a wire sticking phenomenon; these technical difficulties not only affect the quality of the weld, but also lead to frequent shutdowns in the production process for manual inspection and maintenance, which greatly reduces production efficiency and increases production costs.

[0049] In the present invention, step S1 is a preparation stage, in which the workpiece 210 to be welded is electrically connected to the electric signal circuit 300, and a real-time electric signal in the electric signal circuit 300 is obtained, and the electric signal circuit 300 is electrically connected to the welding wire 131. Specifically, in this step, the workpiece to be welded (the material can be metal of various materials) and the connecting line of the electric signal circuit 300 are accurately connected to ensure that the signal detection in the electric signal circuit 300 is reliable, thereby providing a detection basis for the reliability of welding control.

[0050] The step S2 is a detection stage, in which the laser generating mechanism 120 is driven to the initial processing position, and the wire feeding mechanism 130 is controlled to perform the wire pre-feeding action according to the real-time electrical signal obtained in this step. The laser generating mechanism 120 and the wire feeding mechanism 130 have a common fixed base (the laser generating mechanism 120 and the wire feeding mechanism 130 belong to the welding terminal 100). Since in the subsequent step S5, after the welding is completed, the wire feeding mechanism 130 performs the wire recovery action, then the free end of the welding wire 131 is not in the working position, but there is a certain distance. Therefore, in this step, it is necessary to perform the wire pre-feeding action, which includes speed parameters and length parameters. Through the real-time electrical signal, it can be monitored whether the free end of the welding wire 131 is in good contact with the workpiece 210 to be welded. Through the adjustment of the speed parameter and the length parameter in the wire pre-feeding action, the basic effect between the welding wire 131 and the workpiece 210 to be welded can be optimized. When the free end of the welding wire 131 contacts the workpiece 210, the electrical signal loop 300 is completely established, so that the contact state between the free end of the welding wire 131 and the workpiece 210 can be monitored in real time in the subsequent process. The signal collected in the electrical signal loop 300 can be current, voltage, resistance or impedance, etc.

[0051] Step S3 is the welding start-up stage. In this step, the timing of starting the laser generating mechanism 120 is controlled according to the real-time electrical signal obtained in this step, and the core is to determine whether the free end of the welding wire 131 is in good contact with the workpiece 210 to be welded. In different embodiments, the contact effect of the welding wire 131 and the initial processing position of the weld (on the workpiece 210 to be welded) can be monitored, or the contact effect of the welding wire 131 and the entire weld can be monitored. This will be explained in detail in the subsequent embodiments. When it is determined that the contact is good, the laser generating mechanism 120 can be started to start working, that is, the work is started to generate laser for welding.

[0052] The step S4 is the welding execution stage, in which the wire feeding mechanism 130 is controlled to perform the wire feeding action and the laser generating mechanism 120 is controlled to move according to the preset path to perform welding. In the above process, the working process includes the wire feeding action performed by the wire feeding mechanism 130, the laser power generated by the laser generating mechanism 120, and the movement performed by the two together. During the movement process, the relevant driving mechanism executes the preset path. In this step, a real-time electrical signal is continuously obtained so that the welding process can be monitored in real time. It should be noted that the preset path provides a basis, which can be to execute the walking of the preset path in a forward manner, or to execute the walking of the preset path in a reverse manner.

[0053] Step S5 is the final stage of welding. In this step, after the movement of the laser generating mechanism 120 is completed, the wire feeding mechanism 130 is controlled to perform the wire recovery action and the operation of the laser generating mechanism 120 is stopped at the same time. At the end position of the weld, due to the high-density laser irradiation generated by the laser generating mechanism 120, the welding wire 131 may retract, forming a weld nodule, affecting the appearance and performance of the weld. On the contrary, if the laser power is reduced to avoid the weld nodule, the welding wire 131 may stick to the weldment, forming a wire sticking phenomenon. In order to solve the above problems, in the final stage of welding, the relevant main control program accurately identifies the point signal of the welding terminal 100, and quickly instructs the wire feeding mechanism 130 to perform the wire recovery action, for example, retracting the welding wire 131 to 2mm to 3mm exposed from the output port of the wire feeding mechanism 130, retracting it to the above exposed length range, effectively avoiding common defects at the end of welding, and also reducing the possibility of abnormality of the welding wire 131.

[0054] In summary, through the establishment of the electrical signal circuit 300, in the detection stage, the wire feeding mechanism 130 can be given guidance to perform the wire pre-feeding action so as to achieve good contact, and in the welding execution stage, the real-time electrical signal is continuously obtained so that the welding process can be monitored in real time; the electrical signal circuit 300 that monitors the contact state between the welding wire 131 and the workpiece 210 in real time plays a key role, ensuring the accuracy of wire feeding and the stability of the welding process, thereby improving the overall welding quality and efficiency; in the final stage of welding, the wire feeding mechanism 130 is quickly instructed to perform the wire recovery action, which effectively avoids common defects at the end of welding, and also reduces the possibility of abnormalities in the welding wire 131; through the above features, the delivery of the welding wire 131 can be tracked and adjusted in real time to ensure the precise position of the welding wire 131 during the welding process, thereby improving the welding quality. This real-time monitoring and intelligent adjustment mechanism significantly reduces welding defects, reduces the frequency of rework, and improves production efficiency and product consistency.

[0055] In one embodiment, the step of S3 includes:

[0056] Control the laser generating mechanism 120 to move in the forward direction of the preset path. If the real-time electrical signal during the movement of the laser generating mechanism 120 determines that the path is good, control the laser generating mechanism 120 to return to the initial processing position, and control the laser generating mechanism 120 to start working;

[0057] In the step S4, the movement of the laser generating mechanism 120 is in the forward direction of the preset path.

[0058] In this embodiment, considering that the real-time electrical signal obtained during the welding process has a large fluctuation range and a certain degree of uncertainty, the monitoring of the welding process through the real-time electrical signal at this time has a certain degree of difficulty or deviation. Then, without starting the laser generating mechanism 120 to work, the preset path is walked in advance, and the real-time electrical signal is used to determine whether the preset path is of high quality (the most important factor for the abnormality is the abnormal structure to be welded or the abnormal fixation of the welded part 210), so as to form a prediction of the welding effect. For example, a qualified real-time electrical signal curve is pre-stored corresponding to the preset path. In the process of walking the preset path, if the real-time electrical signal deviates from the preset curve, it means that there is a problem with the path. If the real-time electrical signal meets the preset curve, it means that there is no problem with the path.

[0059] In one embodiment, the step of S3 includes:

[0060] Control the laser generating mechanism 120 to move in the forward direction of the preset path. If the real-time electrical signal during the movement of the laser generating mechanism 120 determines that the path is good, the laser generating mechanism 120 is controlled to start working;

[0061] In the step S4, the movement of the laser generating mechanism 120 is in the reverse direction of the preset path.

[0062] The difference between this embodiment and the aforementioned embodiment is that after walking the preset path in advance, it does not return to the initial processing position, but directly executes the preset path in reverse, thereby improving the efficiency of the entire welding process.

[0063] In one embodiment, the step S3 includes:

[0064] If the real-time electrical signal during the movement of the laser generating mechanism 120 determines that the path is bad, a path abnormality analysis is given based on the real-time electrical signal obtained in this step.

[0065] In this embodiment, in response to the situation where the path is poor through real-time electrical signal monitoring, the path abnormality analysis is specifically provided through the characteristics of the real-time electrical signal. In the above steps, without starting the laser generating mechanism 120 to work, the preset path is walked in advance, and the real-time electrical signal is used to determine whether the preset path is of high quality (the main factor for the abnormality is the abnormal structure to be welded or the abnormal fixation of the welded part 210). The deviation or even disappearance of the real-time electrical signal from the normal value can correspond to possible abnormal conditions, thereby forming a path abnormality analysis.

[0066] In one embodiment, a shearing mechanism is provided at the output end of the wire feeding mechanism 130, and the step S1 includes:

[0067] The shearing mechanism is controlled to shear the free end of the welding wire 131 .

[0068] In this embodiment, since the establishment of the electrical signal loop 300 has a relatively important influence on the entire welding process, the contact effect between the welding wire 131 and the workpiece 210 to be welded is relatively important for the credibility of the electrical signal in the electrical signal loop 300. Then, a shearing mechanism is added, and after the wire feeding mechanism 130 completes the wire recovery action, the free end of the welding wire 131 is trimmed by the shearing mechanism. In particular, the overall work efficiency can be improved by trimming the shearing mechanism. The work of the shearing mechanism can not only process the shape of the free end, but also standardize the length of the welding wire 131 exposed from the wire feeding mechanism 130, so that the execution process of the wire pre-feeding action can be more efficient.

[0069] In one embodiment, in the wire recovery action in step S5, the size of the recovered wire is 2 mm to 3 mm exposed from the wire feeding mechanism 130 and the speed of the wire recovery is 20 to 30 cm per second.

[0070] In this embodiment, the preferred parameters of the wire recovery action are given, and the wire is retracted to the above exposed length range, which effectively avoids common defects at the end of welding and reduces the possibility of abnormality of the welding wire 131. The speed of wire recovery should be moderate, so as to achieve the optimization of welding effect while not placing high requirements on the driving work of the wire feeding mechanism 130.

[0071] In one embodiment, the step of S4 includes:

[0072] The wire feeding mechanism 130 is controlled to perform the wire feeding action and the laser generating mechanism 120 is controlled to move along a preset path to perform welding, and the welding effect is determined according to the real-time electrical signal obtained in this step.

[0073] In this embodiment, during the welding execution stage, the welding effect is judged according to the continuously obtained real-time electrical signal. For example, a relevant comparison table is prepared according to the real-time electrical signal curve during a good welding process. Then, during the normal welding process, the comparison between the real-time electrical signal and the comparison table can evaluate the welding process. Specifically, the smaller the difference between the two, the better the welding process is. If there is a large deviation, it means that the welding process is abnormal, and it is necessary to issue a relevant alarm and record the process.

[0074] Reference Figure 2 The present invention also provides a device for running the above-mentioned precision wire feeding laser welding control method, comprising:

[0075] The welding terminal 100 includes a driving seat 110 and a laser generating mechanism 120 and a wire feeding mechanism 130 disposed on the driving seat 110;

[0076] A clamping mechanism 200, used for clamping a workpiece 210 to be welded;

[0077] The electric signal circuit 300 has two output ends electrically connected to the workpiece 210 to be welded and the welding wire 131 in the wire feeding mechanism 130;

[0078] The processor is electrically connected to the welding terminal 100 , the clamping mechanism 200 and the electric signal loop 300 . The processor receives the real-time electric signal in the electric signal loop 300 and controls the operation of the welding terminal 100 and the clamping mechanism 200 .

[0079] In this embodiment, the specific working mode of the device refers to the aforementioned method embodiment, which will not be described in detail here.

[0080] In one embodiment, a shearing mechanism is provided at the output end corresponding to the wire feeding mechanism 130 .

[0081] In this embodiment, after the wire feeding mechanism 130 completes the wire recovery action, the free end of the welding wire 131 is trimmed by the shearing mechanism. In particular, the overall work efficiency can be improved by the trimming of the shearing mechanism. The shearing mechanism can not only process the shape of the free end, but also standardize the length of the welding wire 131 exposed from the wire feeding mechanism 130, so that the execution process of the wire pre-feeding action can be more efficient.

[0082] The present invention also provides a computer, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned precision wire feeding laser welding control method when executing the computer program.

[0083] The computer device includes a processor, a storage, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The storage of the computer device includes a non-volatile storage medium and an internal storage. The non-volatile storage medium stores an operating system and a computer program. The internal storage provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC near-field communication or other technologies. When the computer program is executed by the processor, a file storage method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0084] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned precision wire feeding laser welding control method are implemented.

[0085] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and 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 embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media provided in this application and used in the embodiments may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0086] In summary. The precision wire feeding laser welding control method, computer and storage medium provided by the present invention, through the establishment of the electric signal loop 300, can provide guidance for the wire feeding mechanism 130 to perform the wire pre-feeding action in the detection stage to achieve good contact, and continuously obtain real-time electric signals in the welding execution stage, so as to monitor the welding process in real time; the electric signal loop 300 that monitors the contact state between the welding wire 131 and the workpiece 210 in real time plays a key role, ensuring the accuracy of wire feeding and the stability of the welding process, thereby improving the overall welding quality and efficiency; in the final stage of welding, the wire feeding mechanism 130 is quickly instructed to perform the wire recovery action, effectively avoiding common defects at the end of welding, and also reducing the possibility of abnormalities in the welding wire 131; through the above characteristics, the delivery of the welding wire 131 can be tracked and adjusted in real time to ensure the precise position of the welding wire 131 during the welding process, thereby improving the welding quality. This real-time monitoring and intelligent adjustment mechanism significantly reduces welding defects, reduces the frequency of rework and repair, and improves production efficiency and product consistency.

[0087] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A precision wire feeding laser welding control method, characterized in that: include: S1, a preparation stage, electrically connecting the workpiece to be welded (210) to the electric signal circuit (300), and acquiring a real-time electric signal in the electric signal circuit (300), wherein the electric signal circuit (300) is electrically connected to the welding wire (131); S2, a detection stage, driving the laser generating mechanism (120) to an initial processing position, and controlling the wire feeding mechanism (130) to perform a wire pre-feeding action according to the real-time electrical signal obtained in this step, wherein the laser generating mechanism (120) and the wire feeding mechanism (130) have a common fixed base; S3, welding start-up phase, controlling the timing of the laser generating mechanism (120) starting to work according to the real-time electrical signal obtained in this step; S4, welding execution stage, controlling the wire feeding mechanism (130) to execute the wire feeding action and controlling the laser generating mechanism (120) to move according to a preset path to execute welding; S5, the final stage of welding, when the laser generating mechanism (120) has completed its movement, the wire feeding mechanism (130) is controlled to perform a wire recovery action and the operation of the laser generating mechanism (120) is stopped at the same time, wherein the size of the recovered wire is 2 mm to 3 mm exposed from the wire feeding mechanism (130) and the speed of the wire recovery is 20 to 30 cm per second; Repeat steps S1 to S5 above; The step S3 includes: Controlling the laser generating mechanism (120) to move in the forward direction of a preset path, and when a real-time electrical signal during the movement of the laser generating mechanism (120) determines that the path is good, controlling the laser generating mechanism (120) to return to the initial processing position, and controlling the laser generating mechanism (120) to start working; In the step S4, the movement of the laser generating mechanism (120) is in the forward direction of a preset path; or, The steps of S3 include: Controlling the laser generating mechanism (120) to move in the forward direction of a preset path, and controlling the laser generating mechanism (120) to start working when a real-time electrical signal during the movement of the laser generating mechanism (120) determines that the path is good; In the step S4, the movement of the laser generating mechanism (120) is in the reverse direction of the preset path.

2. The precision wire feeding laser welding control method according to claim 1 is characterized in that: The step of S3 then includes: If the real-time electrical signal during the movement of the laser generating mechanism (120) determines that the path is bad, a path abnormality analysis is given based on the real-time electrical signal obtained in this step.

3. The precision wire feeding laser welding control method according to claim 1 is characterized in that: A shearing mechanism is provided at the output end of the wire feeding mechanism (130), and the step S1 includes: The shearing mechanism is controlled to shear the free end of the welding wire (131).

4. The precision wire feeding laser welding control method according to claim 1 is characterized in that: The step of S4 includes: The wire feeding mechanism (130) is controlled to perform a wire feeding action and the laser generating mechanism (120) is controlled to move along a preset path to perform welding, and the welding effect is judged according to the real-time electrical signal obtained in this step.

5. A computer, comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the computer program, the steps of the precision wire feeding laser welding control method described in any one of claims 1 to 4 are implemented.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the precision wire feeding laser welding control method described in any one of claims 1 to 4 are implemented.

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