Monitoring method, device, equipment and system for laser welding equipment and storage medium

Abstract

The invention provides a monitoring method, device, equipment and system for laser welding equipment and a storage medium. The method comprises the following steps: receiving power measurement data and converting the power measurement data into actual output power data; drawing and displaying a trend chart according to the actual output power data; when the actual output power data is lower than the output power lower limit threshold value, laser welding protection lens replacement reminding information is generated; receiving cooling water flow data measured by a flow meter mounted on a laser welding lens of the laser welding equipment; when the cooling water flow data exceed the cooling water flow threshold value, cooling water flow alarm information is generated; receiving lens temperature data; when the lens temperature data exceeds the lens temperature threshold value, generating lens temperature alarm information; collecting and recording laser welding wire feeding use data; and generating wire feeding pipe replacement reminding information according to the use duration of the wire feeding pipe, the number of the produced vehicle bodies, the maximum use time and the limit value of the number of the produced vehicle bodies. According to the invention, the equipment state can be monitored, and the cost is greatly reduced.

Description

Technical Field

[0001] Embodiments of the present invention generally relate to the field of automobile welding technology, and more specifically, to a monitoring method, device, equipment, system and storage medium for laser welding equipment. Background Art

[0002] In the process of manufacturing the white body in the automobile product welding workshop, laser welding is usually used to weld the connection between the body roof and the side panel. The welding seam of the laser welding process has the advantages of one-time forming, beautiful appearance, and high strength. Laser welding equipment is a high-precision equipment with high price. There are the following problems:

[0003] 1. Since laser welding equipment works at high power and high temperature, there are many factors in the welding process, which will cause multiple hidden dangers of damage to equipment such as laser welding lenses and laser welding machines. Each equipment cannot be effectively monitored and the equipment status cannot be predicted. Since the hidden dangers of the equipment have not been checked, long-term operation with illness will cause irreversible damage to the equipment. The repair cost of laser welding equipment is high after it is damaged. For example, the cost of returning the damaged laser welding lens to the factory for repair is tens of thousands of yuan each time, and the cost of on-site equipment maintenance by the laser manufacturer is as high as tens of thousands of yuan each time. The cost of repair and replacement of spare parts is very expensive.

[0004] 2. The data of the overall equipment output power cannot be monitored during the laser welding process, the stability of the laser welding quality cannot be effectively monitored, and the equipment cannot grasp whether the output status is normal, resulting in many welding quality defects. The causes of welding quality problems cannot be traced, resulting in a lot of time spent on welding quality debugging. Each welding quality problem adjustment and repair will take more than tens of minutes of equipment downtime, resulting in a lot of time and cost waste, affecting the smooth completion of production.

[0005] 3. The current status of replacing the internal protective lenses of welding lenses is to replace them according to the cycle, twice per shift. It is impossible to determine whether the lenses have reached the end of their life, and the lens replacement standards are blank in the industry. The service life of the protective lenses after replacement has not reached the limit at all and they can continue to be used, resulting in a large amount of waste of lens spare parts, no effective monitoring of cost consumption, and inability to analyze the cost usage status of spare parts.

[0006] 4. There is currently no effective record for the replacement of wearing parts such as laser welding wire feed tubes. The data of each replacement cannot be saved and traced, and the actual service life of the wearing parts cannot be determined. The replaced wearing parts have not reached the end of their life, resulting in a waste of spare parts costs.

[0007] At present, the following methods are mainly used to solve the above problems: For equipment status monitoring, maintenance personnel are required to use the production intervals to inspect and maintain the equipment; personnel replace the laser lens every shift to ensure the stable quality of laser welding; damaged laser welding lenses are returned to the factory for repair, and damaged lasers require manufacturer personnel to arrive at the site for maintenance; if there are welding quality problems with the vehicle, manual offline repairs are required, and maintenance personnel debug the welding quality; wire feeding tubes and other consumables are replaced according to the cycle.

[0008] However, when inspecting and maintaining the equipment, the personnel can only see the visual parts of the equipment, and the internal parts of the equipment and the laser functional parts cannot be inspected and maintained. The personnel replace the laser lens every shift, but the service life of the lens is not fully utilized, resulting in a large amount of lens cost waste. It is expensive to return the damaged laser welding lens to the factory for repair. If quality problems occur, manual offline repair is a post-event remedial measure that requires a large amount of repair consumables and increases the time cost of repair. The quality of the repair cannot meet the quality standards of laser welding one-time forming. The wire feed is replaced on a periodic basis, and paper and pen records cannot be preserved for a long time and cannot be traced. Summary of the invention

[0009] In order to solve the above-mentioned problems in the prior art, in a first aspect, an embodiment of the present invention provides a monitoring method for laser welding equipment, the method comprising: receiving power measurement data measured by a power meter of the laser welding equipment; converting the power measurement data into actual output power data; drawing a trend graph according to the actual output power data, and displaying the trend graph; generating a laser welding protective lens replacement reminder message when the actual output power data is lower than a predefined output power lower limit threshold; receiving cooling water flow data measured by a flow meter installed on a laser welding lens of the laser welding equipment; generating cooling water flow alarm information when the cooling water flow data exceeds a predefined cooling water flow threshold; receiving lens temperature data measured by a temperature detection instrument installed on the laser welding lens; generating a lens temperature alarm message when the lens temperature data exceeds a predefined lens temperature threshold; collecting and recording laser welding wire feeding usage data, wherein the laser welding wire feeding usage data includes the use time of the wire feeding tube and the number of produced car bodies; generating a wire feeding tube replacement reminder message according to the use time of the wire feeding tube, the number of produced car bodies, and the predefined maximum use time and the number of produced car bodies limit.

[0010] In some embodiments, the method further includes: receiving monitoring data on the laser welding wire remainder; and generating laser welding wire replacement reminder information when the laser welding wire remainder reaches a wire remainder warning value.

[0011] In some embodiments, the method also includes: real-time display of one or more of the following: the power measurement data, the actual output power data, the output power lower limit threshold, the cooling water flow data, the cooling water flow threshold, the lens temperature data, the lens temperature threshold, the laser welding wire feeding usage data, the maximum usage time, the production vehicle body quantity limit, and the laser welding protective lens replacement reminder information, the cooling water flow alarm information, the lens temperature alarm information, and the wire feeding tube replacement reminder information.

[0012] In some embodiments, the method further comprises: displaying a predetermined number of historical data of power measurement data and / or actual output power data.

[0013] In some embodiments, the method further comprises:

[0014] Determining whether the laser output power is abnormal according to the actual output power data and the predefined upper and lower tolerances of the output power;

[0015] When the laser output power is abnormal, an output power abnormality reminder message is generated.

[0016] In some embodiments, the method further comprises:

[0017] Export one or more of the power measurement data, the actual output power data, the cooling water flow data, the lens temperature data, and the laser welding wire feeding usage data to a local table file for storage.

[0018] In a second aspect, an embodiment of the present invention proposes a monitoring device for laser welding equipment, the device comprising: a power measurement data receiving module, configured to receive power measurement data measured by a power meter of the laser welding equipment; a power data conversion module, configured to convert the power measurement data into actual output power data; a trend graph drawing module, configured to draw a trend graph according to the actual output power data and display the trend graph; a lens replacement reminder module, configured to generate a laser welding protective lens replacement reminder message when the actual output power data is lower than a predefined output power lower limit threshold; a flow data receiving module, configured to receive cooling water flow data measured by a flow meter installed on the laser welding lens of the laser welding equipment; a flow alarm module , configured to generate cooling water flow alarm information when the cooling water flow data exceeds a predefined cooling water flow threshold; a temperature data receiving module, configured to receive lens temperature data measured by a temperature detection instrument installed on the laser welding lens; a temperature alarm module, configured to generate lens temperature alarm information when the lens temperature data exceeds a predefined lens temperature threshold; a wire feeding usage data receiving module, configured to collect and record laser welding wire feeding usage data, wherein the laser welding wire feeding usage data includes the usage time of the wire feeding tube and the number of produced car bodies; a wire feeding tube replacement reminder module, configured to generate a wire feeding tube replacement reminder information based on the usage time of the wire feeding tube, the number of produced car bodies, and the predefined maximum usage time and the number of produced car bodies limit.

[0019] In a third aspect, an embodiment of the present invention proposes a monitoring device for laser welding equipment, the device comprising a memory and a processor, the memory storing a computer program, and implementing the monitoring method for laser welding equipment described in any of the above embodiments when the computer program is executed by the processor.

[0020] In a fourth aspect, an embodiment of the present invention proposes a monitoring system for laser welding equipment, the system comprising: a power meter, a flow meter, a temperature detection instrument, and a monitoring device for laser welding equipment described in the above embodiment, wherein the flow meter and the temperature detection instrument are installed on the laser welding lens of the laser welding equipment.

[0021] In a fifth aspect, an embodiment of the present invention provides a storage medium storing computer-readable instructions, which, when executed by a processor, executes a monitoring method for laser welding equipment according to any of the above embodiments.

[0022] The monitoring method, device, equipment, system and storage medium for laser welding equipment proposed in the embodiments of the present invention innovatively propose to track the equipment status according to the data of the laser welding process, and utilize the upper computer to write the data display screen to display the equipment status in real time, breaking the manufacturer's multiple technical blockades on the overall monitoring of laser welding equipment, and realizing unified data management and data monitoring of laser welding equipment.

[0023] The monitoring method for laser welding equipment proposed in the embodiment of the present invention uses different data collection and calculation methods to accurately predict the working status of laser welding equipment, discover equipment hidden dangers in advance, and perform maintenance in time to prevent major equipment damage. Through the analog and digital conversion operations of data, an innovative monitoring method for water flow and temperature is proposed, which can guide personnel to quickly determine equipment problem points and greatly reduce the time cost of equipment maintenance. By monitoring the overall output energy of the equipment, a new standard for replacing protective lenses is proposed, which maximizes the use value of protective lenses, greatly reduces the use of protective lenses, and fills the application gap in this industry. Through data analysis, the service life of other wearing parts can be optimized, so that wearing parts can be fully utilized and the cost of spare parts can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the embodiments of the present invention will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0025] Figure 1 A flow chart showing a monitoring method for laser welding equipment according to an embodiment of the present invention is shown;

[0026] Figure 2 A schematic diagram showing a data display according to an embodiment of the present invention is shown;

[0027] Figure 3 A schematic diagram showing a power measurement data display according to an embodiment of the present invention is shown.

[0028] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts. DETAILED DESCRIPTION

[0029] The principle and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present invention, and are not intended to limit the scope of the present invention in any way.

[0030] In one aspect, an embodiment of the present invention provides a monitoring method for laser welding equipment. Figure 1, which shows a flow chart of a monitoring method 100 for laser welding equipment according to an embodiment of the present invention. The method 100 includes steps S101-S110.

[0031] In step S101, power measurement data measured by a power measuring instrument of laser welding equipment is received. The power measurement data is, for example, an analog quantity.

[0032] In step S102, the power measurement data is converted into actual output power data. The conversion may be analog-to-digital conversion, or data correction performed in consideration of the deviation between the measurement data and the actual data.

[0033] In step S103, a trend graph is drawn according to the actual output power data, and the trend graph is displayed.

[0034] In step S104, when the actual output power data is lower than the predefined output power lower limit threshold, a laser welding protective lens replacement reminder message is generated.

[0035] The method captures the power measurement data measured by the power meter of the laser welding equipment, and displays the data in real time, and monitors the power by drawing a trend chart through, for example, the trend display function of the WICC software, so as to grasp the state of the equipment output energy and determine the equipment state, that is, determine whether there is a problem with the equipment operation.

[0036] This method innovatively proposes replacing the laser welding protective lens based on the lowest setting of the output energy, which can significantly reduce the cost of using the protective lens.

[0037] In step S105, cooling water flow data measured by a flow meter installed on a laser welding lens of a laser welding device is received.

[0038] In step S106, when the cooling water flow rate data exceeds a predefined cooling water flow rate threshold, cooling water flow rate alarm information is generated.

[0039] In step S107, lens temperature data measured by a temperature detection instrument installed on the laser welding lens is received.

[0040] In step S108 , when the lens temperature data exceeds a predefined lens temperature threshold, a lens temperature alarm message is generated.

[0041] The present invention installs a flow meter and a temperature detection instrument on the lens to detect the cooling water flow data and the temperature data of the laser welding lens in real time, and displays the data in a chart to monitor the water flow and temperature of the cooling system as a whole. The lens temperature can be determined according to the cooling water temperature, and an over-temperature alarm can be set. If the data exceeds the set upper and lower limits, the system will automatically alarm to remind the staff to conduct maintenance.

[0042] In step S109, the laser welding wire feeding usage data is collected and recorded, wherein the laser welding wire feeding usage data includes the usage time of the wire feeding tube and the number of vehicle bodies produced.

[0043] In step S110, wire feeding tube replacement reminder information is generated according to the usage time of the wire feeding tube, the number of production bodies, and the predefined maximum usage time and production body number limit.

[0044] The present invention collects laser welding wire feeding usage data, and innovatively proposes to create a wire feeding tube replacement reminder and recording function based on the wire feeding tube usage time and the number of produced vehicle bodies.

[0045] The monitoring method for laser welding equipment proposed in the embodiment of the present invention realizes equipment status monitoring through real-time data collection. Through data recording and screen display, the replacement of consumables can be intuitively seen, the use of consumables can be mastered, and the cost of consumables can be optimized.

[0046] As an embodiment of the present invention, the method may further include: receiving monitoring data of the laser welding wire remaining amount; when the laser welding wire remaining amount reaches the wire remaining amount warning value, generating a laser welding wire replacement reminder message. This embodiment can monitor the laser welding wire remaining amount state, and when it reaches the warning value, it reminds that the laser welding wire needs to be replaced.

[0047] As an embodiment of the present invention, the method may further include: real-time display of one or more of the following: power measurement data, actual output power data, output power lower limit threshold, cooling water flow data, cooling water flow threshold, lens temperature data, lens temperature threshold, laser welding wire feeding usage data, maximum usage time, production vehicle body quantity limit, and laser welding protective lens replacement reminder information, cooling water flow alarm information, lens temperature alarm information, wire feeding tube replacement reminder information. Reference Figure 2 , which shows a schematic diagram of data display according to an embodiment of the present invention. Through this embodiment, the device data can be intuitively seen through the screen display.

[0048] As an embodiment of the present invention, the method may further include: displaying a predetermined number of power measurement data and / or historical data of actual output power data. Figure 3 , which shows a schematic diagram of power measurement data display according to an embodiment of the present invention. As an example only, Figure 3 The most recent 100 power measurement data are displayed intuitively.

[0049] As an embodiment of the present invention, the method may further include: determining whether the laser output power is abnormal based on the actual output power data and the predefined upper and lower tolerances of the output power, that is, confirming whether the measured power fluctuates; when the laser output power is abnormal, generating output power abnormality reminder information. For example, the data and reminder information can be summarized in a table to facilitate later tracking and data analysis.

[0050] As an embodiment of the present invention, the method may also include: exporting one or more of power measurement data, actual output power data, cooling water flow data, lens temperature data, and laser welding wire feeding usage data to a local spreadsheet file for storage, thereby facilitating later tracing.

[0051] The monitoring method for laser welding equipment proposed in the embodiment of the present invention innovatively proposes to track the equipment status based on the data of the laser welding process, and uses the upper computer to write the data display screen to display the equipment status in real time, breaking the manufacturer's multiple technical blockades on the overall monitoring of laser welding equipment, and realizing unified data management and data monitoring of laser welding equipment.

[0052] The monitoring method for laser welding equipment proposed in the embodiment of the present invention uses different data collection and calculation methods to accurately predict the working status of laser welding equipment, discover equipment hidden dangers in advance, and perform maintenance in time to prevent major equipment damage. Through the analog and digital conversion operations of data, an innovative monitoring method for water flow and temperature is proposed, which can guide personnel to quickly determine equipment problem points and greatly reduce the time cost of equipment maintenance. By monitoring the overall output energy of the equipment, a new standard for replacing protective lenses is proposed, which maximizes the use value of protective lenses, greatly reduces the use of protective lenses, and fills the application gap in this industry. Through data analysis, the service life of other wearing parts can be optimized, so that wearing parts can be fully utilized and the cost of spare parts can be greatly reduced.

[0053] On the other hand, an embodiment of the present invention provides a monitoring device for laser welding equipment, which may include the following modules:

[0054] A power measurement data receiving module may be configured to receive power measurement data measured by a power measuring instrument of a laser welding device;

[0055] A power data conversion module may be configured to convert power measurement data into actual output power data;

[0056] A trend graph drawing module may be configured to draw a trend graph according to actual output power data and display the trend graph;

[0057] The lens replacement reminder module can be configured to generate a laser welding protection lens replacement reminder message when the actual output power data is lower than a predefined output power lower limit threshold;

[0058] A flow data receiving module may be configured to receive cooling water flow data measured by a flow meter installed on a laser welding lens of a laser welding device;

[0059] A flow alarm module can be configured to generate cooling water flow alarm information when cooling water flow data exceeds a predefined cooling water flow threshold;

[0060] A temperature data receiving module may be configured to receive lens temperature data measured by a temperature detection instrument installed on the laser welding lens;

[0061] A temperature alarm module may be configured to generate a lens temperature alarm message when the lens temperature data exceeds a predefined lens temperature threshold;

[0062] A wire feeding usage data receiving module can be configured to collect and record laser welding wire feeding usage data, wherein the laser welding wire feeding usage data includes the use time of the wire feeding tube and the number of produced car bodies;

[0063] The wire feed tube replacement reminder module can be configured to generate a wire feed tube replacement reminder message based on the wire feed tube usage time, the number of production bodies, and the pre-defined maximum usage time and production body number limits.

[0064] It should be noted that the functions implemented by each module in the monitoring device for laser welding equipment proposed in the embodiment of the present invention correspond one-to-one to the various steps of the monitoring method for laser welding equipment described above. For its specific implementation methods, examples and beneficial effects, please refer to the above description of the method.

[0065] On the other hand, an embodiment of the present invention provides a monitoring device for laser welding equipment, the device includes a memory and a processor, a computer program is stored in the memory, and when the computer program is executed by the processor, the monitoring method for laser welding equipment described in any of the above embodiments is implemented.

[0066] On the other hand, an embodiment of the present invention proposes a monitoring system for laser welding equipment, the system comprising: a power meter, a flow meter, a temperature detection instrument, and a monitoring device for laser welding equipment described in the above embodiment, wherein the flow meter and the temperature detection instrument are installed on the laser welding lens of the laser welding equipment.

[0067] The monitoring system for laser welding equipment proposed in the embodiment of the present invention innovatively proposes to track the equipment status based on the data of the laser welding process, and uses the upper computer to write the data display screen to display the equipment status in real time, breaking the manufacturer's multiple technical blockades on the overall monitoring of laser welding equipment, and realizing unified data management and data monitoring of laser welding equipment.

[0068] The monitoring system for laser welding equipment proposed in the embodiment of the present invention can accurately predict the working status of laser welding equipment through different data collection and calculation methods, discover equipment hidden dangers in advance, and perform maintenance in time to prevent major equipment damage. Through the analog and digital conversion operations of data, an innovative monitoring method for water flow and temperature is proposed, which can guide personnel to quickly determine equipment problem points and greatly reduce the time cost of equipment maintenance. By monitoring the overall output energy of the equipment, a new standard for replacing protective lenses is proposed, which maximizes the use value of protective lenses, greatly reduces the use of protective lenses, and fills the application gap in this industry. Through data analysis, the service life of other wearing parts can be optimized, so that wearing parts can be fully utilized and the cost of spare parts can be greatly reduced.

[0069] The digital intelligent monitoring system for the welding process status and cost control of laser welding equipment, which integrates the above functions, effectively guarantees the stability of the laser welding equipment and significantly reduces the cost of use.

[0070] In yet another aspect, an embodiment of the present invention provides a storage medium storing computer-readable instructions, which, when executed by a processor, executes the monitoring method for laser welding equipment described in any of the above embodiments.

[0071] The monitoring scheme for laser welding equipment proposed in the embodiment of the present invention realizes a digital intelligent monitoring system for the welding process and cost control of laser welding equipment. The system is an intelligent system that integrates multiple equipment status monitoring and consumable replacement records, and has the following characteristics: (1) It is used to determine the equipment status in advance, remind maintenance personnel to perform equipment pre-repair in advance, and eliminate equipment hidden dangers that cause large irreversible equipment damage and large equipment cost losses. (2) It is used for electronic replacement records of consumables such as wearing parts. Through this system, the replacement time of wearing parts can be traced, the service life of wearing parts can be understood, and the status can be checked according to the records to optimize and extend the life of wearing parts, thereby reducing the cost of spare parts.

[0072] The monitoring solution for laser welding equipment proposed in the embodiment of the present invention utilizes a host computer to compile a big data display screen to display the equipment status in real time, breaking the technical blockade of laser welding equipment and realizing unified data management and data monitoring of laser welding equipment.

[0073] Real-time data collection of laser welding equipment and monitoring of equipment status can detect equipment hidden problems in advance and provide accurate direction for equipment pre-repair, thereby avoiding subsequent major irreversible damage and a large amount of equipment downtime for maintenance.

[0074] The monitoring solution for laser welding equipment proposed in the embodiment of the present invention electronically records the replacement records of consumable parts of laser welding equipment, completely replacing the paper replacement records.

[0075] The replacement of laser welding consumable parts is uniformly managed and digitally monitored, which enables electronic records of spare parts usage and usage costs, greatly improving cost management efficiency. Through data analysis of spare parts cost usage, the replacement frequency is optimized based on this, achieving optimization of consumable parts costs and saving a lot of costs for the use of consumable parts for laser welding equipment.

[0076] For the purpose of illustration, the foregoing description of the embodiments of the present invention has been given, which is not exhaustive nor intended to limit the present invention to the disclosed exact form. It will be appreciated by those skilled in the art that various changes can be made without departing from the scope of the present invention, and that the elements therein can be replaced with equivalents. In addition, without departing from the basic scope of the present invention, many modifications can be made so that specific situations or materials are adapted to the teachings of the present invention. Therefore, the present invention is not intended to be limited to the specific embodiments disclosed as the best mode for realizing the present invention, and the present invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A monitoring method for laser welding equipment, characterized in that: The method comprises: Receiving power measurement data measured by a power measuring instrument of the laser welding equipment; Converting the power measurement data into actual output power data; Draw a trend graph according to the actual output power data, and display the trend graph; When the actual output power data is lower than a predefined output power lower limit threshold, generating a laser welding protective lens replacement reminder message; Receiving cooling water flow data measured by a flow meter installed on a laser welding lens of the laser welding equipment; When the cooling water flow rate data exceeds a predefined cooling water flow rate threshold, generating cooling water flow rate alarm information; Receiving lens temperature data measured by a temperature detection instrument installed on the laser welding lens; When the lens temperature data exceeds a predefined lens temperature threshold, generating lens temperature alarm information; Collect and record laser welding wire feeding usage data, wherein the laser welding wire feeding usage data includes the usage time of the wire feeding tube and the number of car bodies produced; A wire feeding tube replacement reminder message is generated according to the usage time of the wire feeding tube, the number of production bodies, and predefined maximum usage time and production body number limits.

2. The method according to claim 1, characterized in that The method further comprises: Receiving monitoring data of laser welding wire remainder; When the laser welding wire remaining amount reaches the wire remaining amount warning value, a laser welding wire replacement reminder message is generated.

3. The method according to claim 1, characterized in that The method also includes: real-time display of one or more of the following: the power measurement data, the actual output power data, the output power lower limit threshold, the cooling water flow data, the cooling water flow threshold, the lens temperature data, the lens temperature threshold, the laser welding wire feeding usage data, the maximum usage time, the production vehicle body quantity limit, and the laser welding protective lens replacement reminder information, the cooling water flow alarm information, the lens temperature alarm information, and the wire feeding tube replacement reminder information.

4. The method according to claim 3, characterized in that The method further comprises: displaying a predetermined number of historical data of power measurement data and / or actual output power data.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: Determining whether the laser output power is abnormal according to the actual output power data and the predefined upper and lower tolerances of the output power; When the laser output power is abnormal, an output power abnormality reminder message is generated.

6. The method according to any one of claims 1 to 4, characterized in that The method further comprises: Export one or more of the power measurement data, the actual output power data, the cooling water flow data, the lens temperature data, and the laser welding wire feeding usage data to a local table file for storage.

7. A monitoring device for laser welding equipment, characterized in that: The device comprises: A power measurement data receiving module configured to receive power measurement data measured by a power measuring instrument of the laser welding equipment; A power data conversion module, configured to convert the power measurement data into actual output power data; A trend graph drawing module, configured to draw a trend graph according to the actual output power data and display the trend graph; A lens replacement reminder module, configured to generate a laser welding protective lens replacement reminder message when the actual output power data is lower than a predefined output power lower limit threshold; A flow data receiving module configured to receive cooling water flow data measured by a flow meter installed on a laser welding lens of the laser welding equipment; A flow alarm module, configured to generate cooling water flow alarm information when the cooling water flow data exceeds a predefined cooling water flow threshold; A temperature data receiving module configured to receive lens temperature data measured by a temperature detection instrument installed on the laser welding lens; A temperature alarm module, configured to generate lens temperature alarm information when the lens temperature data exceeds a predefined lens temperature threshold; A wire feeding usage data receiving module is configured to collect and record laser welding wire feeding usage data, wherein the laser welding wire feeding usage data includes the usage time of the wire feeding tube and the number of vehicle bodies produced; The wire feeding tube replacement reminder module is configured to generate wire feeding tube replacement reminder information according to the usage time of the wire feeding tube, the number of production bodies, and the pre-defined maximum usage time and production body number limit.

8. A monitoring device for laser welding equipment, characterized in that: The device comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the monitoring method for laser welding equipment according to any one of claims 1 to 6 is implemented.

9. A monitoring system for laser welding equipment, characterized in that: The system comprises: a power meter, a flow meter, a temperature detection instrument and the monitoring device for laser welding equipment according to claim 8, wherein the flow meter and the temperature detection instrument are installed on the laser welding lens of the laser welding equipment.

10. A storage medium storing computer-readable instructions, wherein when the instructions are executed by a processor, the method according to any one of claims 1 to 6 is executed.

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