Power intelligent compensation method and device for laser cutting machine

Abstract

The present application relates to a power intelligent compensation method and device of a laser cutting machine, the method comprising: S1, obtaining laser cutting machine running state information; S2, based on the laser cutting machine running state information and the pre-set theoretical value of the laser cutting power, determining the power parameter value, and sending the power parameter value to the laser cutting machine; S3, obtaining the actual output power value of the laser cutting machine during cutting according to the power corresponding to the power parameter value; S4, according to the actual output power value, the theoretical value of the laser cutting power and the laser cutting machine running state information, updating the power parameter value, obtaining the new power parameter value, and sending the new power parameter value to the laser cutting machine. It is ensured that the actual power value output by the laser head in the laser cutting machine always points to the theoretical power value, avoids interference caused by the reduction of the laser photoelectric conversion rate and human operation, and enables the machine to stably process in batches.

Description

Technical Field

[0001] This invention relates to the field of laser metal cutting technology, and in particular to a method and device for intelligent power compensation of a laser cutting machine. Background Technology

[0002] During laser equipment operation, to prevent the production of substandard parts, operators typically adjust the process parameters before operation. The main purpose of this adjustment is to ensure that workpieces meeting precision requirements are cut in batches after parameter adjustments, preventing significant losses due to defective parts caused by incorrect cutting parameters. However, each laser machine is equipped with different lasers, and their processing power varies slightly. Furthermore, over prolonged use, lasers inevitably experience a decrease in photoelectric conversion efficiency, and fiber optic transmission inevitably suffers varying degrees of loss. This can lead to situations where even with adjusted parameters, a large number of defective products are produced.

[0003] In addition, during the cutting process, the unstable power can cause slight differences in cutting quality, which may be difficult for workers to judge. Consequently, it is difficult to detect the actual substandard workpieces, which can easily lead to waste or the need for secondary processing.

[0004] Based on the existing technology, it is difficult to accurately detect defective parts caused by unstable power during the processing. Therefore, there is an urgent need for a power intelligent compensation method and device for laser cutting machines. Summary of the Invention

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a power intelligent compensation device and method for a laser cutting machine.

[0006] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0007] In a first aspect, embodiments of the present invention provide a power intelligent compensation method for a laser cutting machine, characterized in that it includes:

[0008] S1. Obtain the operating status information of the laser cutting machine;

[0009] S2. Based on the laser cutting machine's operating status information and the preset theoretical value of laser cutting power, determine the power parameter value and send the power parameter value to the laser cutting machine;

[0010] S3. Obtain the actual output power value of the laser cutting machine during the cutting process according to the power corresponding to the power parameter value;

[0011] S4. Based on the actual output power value, the theoretical value of laser cutting power, and the operating status information of the laser cutting machine, update the power parameter value, obtain the new power parameter value, and send the new power parameter value to the laser cutting machine.

[0012] Preferably,

[0013] The laser cutting machine operating status information includes: the total power value of the laser cutting machine, the operating status of the laser cutting machine, and the process parameters corresponding to the operating status of the laser cutting machine;

[0014] The laser cutting machine is in either piercing or cutting mode.

[0015] The process parameters corresponding to the piercing state include: piercing height and cutting nozzle model;

[0016] The process parameters corresponding to the cutting state include: cutting height and cutting nozzle type.

[0017] Preferably,

[0018] The cutting nozzle model is obtained based on the perforation height and a pre-defined first correspondence;

[0019] The first correspondence is the correspondence between the piercing height and the cutting nozzle model; or,

[0020] The cutting nozzle model is obtained based on the cutting height and a pre-set second correspondence;

[0021] The second correspondence is the correspondence between cutting height and cutting nozzle model.

[0022] Preferably, S2 specifically includes:

[0023] Based on the operating status information of the laser cutting machine and the theoretical value of the preset laser cutting power, the power parameter value is determined by formula (1) and then sent to the laser cutting machine.

[0024] Wherein, formula (1) is:

[0025] (X / Y)×10=M;

[0026] Where X is the theoretical value of laser cutting power;

[0027] Y represents the total power of the laser cutting machine;

[0028] M represents the power parameter value.

[0029] Preferably, S4 specifically includes:

[0030] S41. Obtain the actual output power value of the laser cutting machine during the cutting process according to the preset cycle;

[0031] S42. For any preset period, based on the theoretical value of laser cutting power, the operating status information of the laser cutting machine, and the actual output power value obtained in the preset period, the power parameter value is updated using formula (2) to obtain a new power parameter value for the preset period.

[0032] The formula (2) is:

[0033] Z = A + a × (X * kW - B) + a × C;

[0034] Where A is the power parameter value of the (N-1)th preset cycle; where N≥2, and when N is 2, the value of A is M;

[0035] B is the actual output power value corresponding to the power parameter value of the (N-1)th preset cycle;

[0036] C is the cumulative value of the error values ​​of the first N-1 preset cycles;

[0037] Z is the new power parameter value for the Nth preset cycle;

[0038] 'a' represents the cutting nozzle parameters corresponding to the cutting nozzle model;

[0039] Wherein, if the cutting nozzle model is single spray m, then a = 0.1m; if the cutting nozzle model is double spray d, then a = 0.15d;

[0040] The error value of the (N-1)th preset cycle = the theoretical value of laser cutting power - (the actual output power value corresponding to the power parameter value of the (N-1)th preset cycle).

[0041] Secondly, this embodiment also provides a power intelligent compensation device for a laser cutting machine, the power intelligent compensation device comprising:

[0042] The first board is used to acquire the operating status information of the laser cutting machine;

[0043] The second board is used to determine the power parameter value based on the laser cutting machine's operating status information and the preset theoretical value of the laser cutting power, and to send the power parameter value to the laser cutting machine.

[0044] The third board is used to obtain the actual output power value of the laser cutting machine during the cutting process according to the power corresponding to the power parameter value;

[0045] The second board is also used to update the power parameter value based on the actual output power value, the theoretical value of the laser cutting power, and the operating status information of the laser cutting machine, obtain the new power parameter value, and send the new power parameter value to the laser cutting machine.

[0046] Preferably, the intelligent power compensation device further includes an industrial control computer and a display;

[0047] The industrial computer is connected to the display and the first board respectively;

[0048] This is used to obtain the actual power output value collected by the power control compensation board through the first board, and to display it as a line on the display.

[0049] Preferably, the second board updates the power parameter values ​​based on the actual output power value, the theoretical value of the laser cutting power, and the operating status information of the laser cutting machine, to obtain new power parameter values, specifically including:

[0050] The second board acquires the actual output power value of the laser cutting machine during the cutting process according to a preset cycle, and updates the power parameter value based on the theoretical value of the laser cutting power, the operating status information of the laser cutting machine, and the actual output power value acquired in the preset cycle for any preset cycle, thereby acquiring a new power parameter value for the preset cycle.

[0051] The second board is also used to determine whether the power corresponding to the new power parameter value is within a preset compensation range. If the power corresponding to the new power parameter value is not within the compensation range, the first board will send a first prompt message to the industrial controller.

[0052] The industrial controller is also used to control the display to show the first prompt information;

[0053] The first prompt message indicates that the power corresponding to the new power parameter value is not within the compensation range.

[0054] Preferably,

[0055] If the power corresponding to the new power parameter value is within the preset compensation range, the second board will send the power value corresponding to the new power parameter value to the laser cutting machine and obtain the power feedback time period.

[0056] The power feedback time period is the time it takes for the second board to send the new power parameter value and the corresponding power value to the laser cutter, and for the second board to collect the actual power output value of the laser cutter.

[0057] If the power feedback time period exceeds the preset time, the second board will send a second prompt message to the industrial controller through the first board.

[0058] The industrial controller is also used to control the display to show the second prompt information;

[0059] The second notification message indicates that the power feedback period has exceeded the preset time.

[0060] Thirdly, this embodiment also provides a laser cutting system with intelligent power compensation, including:

[0061] Laser cutting machine and intelligent power compensation device for laser cutting machine as described in the second aspect;

[0062] The laser cutting machine includes a controller, a laser, and a laser head;

[0063] The first board in the intelligent power compensation device is connected to the controller of the laser cutting machine;

[0064] The second board in the intelligent power compensation device is connected to the controller and laser of the laser cutting machine.

[0065] The third board in the intelligent power compensation device is connected to the laser head of the laser cutting machine.

[0066] The beneficial effects of this invention are:

[0067] The present invention provides a power intelligent compensation method for a laser cutting machine. By acquiring the actual power output of the laser cutting head and adaptively adjusting the analog power output value, it ensures that the actual power output of the laser head in the laser cutting machine always points to the theoretical power value, avoiding interference caused by reduced laser photoelectric conversion efficiency and human operation, thus enabling the machine to stably perform batch processing.

[0068] The second board in this invention's intelligent power compensation device for a laser cutting machine determines power parameter values ​​by analyzing the laser cutting machine's operating status information and a pre-set theoretical value for laser cutting power. This intelligent compensation method can adjust the power according to actual conditions, improving cutting efficiency and quality. In this invention, the laser emits power corresponding to the power parameter value to the laser cutting head, ensuring the laser cutting head operates at the expected power, thereby achieving precise cutting of the workpiece. The third board can promptly acquire the actual output power value of the laser cutting head during the cutting process, enabling real-time monitoring of the cutting process and ensuring cutting quality. The second board can collect the actual output power value of the laser cutting head according to a preset cycle and update the power parameter values ​​by combining the theoretical value of laser cutting power and machine operating status information, thereby continuously optimizing the performance and stability of the laser cutting machine and effectively improving the accuracy of power compensation. Attached Figure Description

[0069] Figure 1This is a flowchart of a power intelligent compensation method for a laser cutting machine according to the present invention;

[0070] Figure 2 This is a schematic diagram of the intelligent power compensation device for a laser cutting machine according to the present invention.

[0071] Figure 3 This is a schematic diagram of the intelligent power compensation device for a laser cutting machine according to an embodiment of the present invention;

[0072] Figure 4 This is a schematic diagram of a power intelligent compensation laser cutting system according to the present invention. Detailed Implementation

[0073] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0074] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0075] Example 1

[0076] See Figure 1 This embodiment provides a power intelligent compensation method for a laser cutting machine, including:

[0077] S1. Obtain the operating status information of the laser cutting machine;

[0078] In the practical application of this embodiment, the laser cutting machine operating status information includes: the total power value of the laser cutting machine, the operating status of the laser cutting machine, and the process parameters corresponding to the operating status of the laser cutting machine;

[0079] The laser cutting machine operates in either a piercing state or a cutting state; the process parameters corresponding to the piercing state include: piercing height and cutting nozzle model; the process parameters corresponding to the cutting state include: cutting height and cutting nozzle model.

[0080] S2. Based on the laser cutting machine's operating status information and the preset theoretical value of laser cutting power, determine the power parameter value and send the power parameter value to the laser cutting machine;

[0081] Specifically, S2 includes:

[0082] Based on the operating status information of the laser cutting machine and the theoretical value of the preset laser cutting power, the power parameter value is determined by formula (1) and then sent to the laser cutting machine.

[0083] Wherein, formula (1) is:

[0084] (X / Y)×10=M;

[0085] Where X is the theoretical value of laser cutting power;

[0086] Y represents the total power of the laser cutting machine;

[0087] M represents the power parameter value.

[0088] S3. Obtain the actual output power value of the laser cutting machine during the cutting process according to the power corresponding to the power parameter value;

[0089] It should be noted that there is a relationship between the power parameter value and its corresponding power value in this embodiment. Specifically, assuming the power parameter value M is 5, then the corresponding power value is 5kW. In other words, the power parameter value represents the power parameter value in kilowatts.

[0090] S4. Based on the actual output power value, the theoretical value of laser cutting power, and the operating status information of the laser cutting machine, update the power parameter value, obtain the new power parameter value, and send the new power parameter value to the laser cutting machine.

[0091] In practice, S4 specifically includes:

[0092] S41. Obtain the actual output power value of the laser cutting machine during the cutting process according to the preset cycle;

[0093] S42. For any preset period, based on the theoretical value of laser cutting power, the operating status information of the laser cutting machine, and the actual output power value obtained in the preset period, the power parameter value is updated using formula (2) to obtain a new power parameter value for the preset period.

[0094] The formula (2) is:

[0095] Z = A + a × (X * kW - B) + a × C;

[0096] Where A is the power parameter value of the (N-1)th preset cycle; where N≥2, and when N is 2, the value of A is M;

[0097] B is the actual output power value corresponding to the power parameter value of the (N-1)th preset cycle;

[0098] C is the cumulative value of the error values ​​of the first N-1 preset cycles;

[0099] Z is the new power parameter value for the Nth preset cycle;

[0100] 'a' represents the cutting nozzle parameters corresponding to the cutting nozzle model;

[0101] Wherein, if the cutting nozzle model is single spray m, then a = 0.1m; if the cutting nozzle model is double spray d, then a = 0.15d;

[0102] The error value of the (N-1)th preset cycle = the theoretical value of laser cutting power - (the actual output power value corresponding to the power parameter value of the (N-1)th preset cycle).

[0103] For example, the actual output power value of the laser cutting machine during the cutting process is acquired according to a preset cycle. The time of acquiring the actual power value is the time node of the preset cycle. The time before a time node is considered the previous preset cycle, and the time after the time node is considered the next preset cycle. Specifically, the actual output power value is acquired every 100ms. Therefore, the time period from 0 to 100ms is the first preset cycle, and the time period from 100ms to 200ms is the second preset cycle.

[0104] Assuming the cutting nozzle model is single-spray 1.0, then a = 0.1 × 1.0 = 0.1. M = 5. At 100ms, the actual power value is 4.7kW. Therefore, the power parameter value in the second preset cycle is calculated as: 5.06 = 5 + 0.1 × (5kW - 4.7kW) + 0.1 × (5kW - 4.7kW). The new power parameter value is 5.06. This new power parameter value of 5.06 is then sent to the laser cutting machine. Upon receiving the new power parameter value, the laser cutting machine controls the laser head to cut according to the power value of 5.06kW corresponding to 5.06. If, at 200ms, the actual power value is 4.9kW, then the power parameter value in the third preset cycle is calculated as follows:

[0105] 5.06 + 0.1 × (5kW - 4.9kW) + 0.1 × (5kW - 4.7kW + 5kW - 4.9kW) = 5.11. At this point, the new power parameter value in the third preset cycle is 5.11. Then the new power parameter value of 5.11 is sent to the laser cutting machine, and so on.

[0106] In this embodiment, the cutting nozzle model is obtained based on the piercing height and a pre-set first correspondence; the first correspondence is the correspondence between the piercing height and the cutting nozzle model; or, the cutting nozzle model is obtained based on the cutting height and a pre-set second correspondence; the second correspondence is the correspondence between the cutting height and the cutting nozzle model.

[0107] This embodiment provides a power intelligent compensation method for laser cutting machines. It utilizes real-time acquired laser cutting machine operating status information, combined with pre-set theoretical laser cutting power values, to automatically determine and update the laser cutting machine's power parameter values. This automated adjustment improves the stability and efficiency of the cutting process. By dynamically adjusting the power parameters based on the actual output power value, this embodiment ensures the laser cutting machine maintains the expected power level throughout the cutting process, guaranteeing cutting quality and consistency. Furthermore, the automatic intelligent compensation method in this embodiment enables real-time monitoring and adjustment of the laser cutting machine, reducing the need for manual intervention, improving production efficiency, and lowering production costs. Finally, the method in this embodiment considers different laser cutting machine operating states and process parameters, allowing for corresponding power adjustments based on different cutting states (such as piercing and cutting states) and different process parameters (such as piercing height, cutting height, and cutting nozzle type), improving the applicability and flexibility of the solution. Moreover, by monitoring the actual output power value of the laser cutting machine in real time and dynamically updating the power parameters based on error values, this embodiment enables the system to promptly detect problems and make adjustments, ensuring the stability and reliability of the cutting process.

[0108] Example 2

[0109] See Figure 2 This embodiment provides a power intelligent compensation device for a laser cutting machine, the power intelligent compensation device comprising:

[0110] The first board is used to acquire the operating status information of the laser cutting machine;

[0111] The second board is used to determine the power parameter value based on the laser cutting machine's operating status information and the preset theoretical value of the laser cutting power, and to send the power parameter value to the laser cutting machine.

[0112] The third board is used to obtain the actual output power value of the laser cutting machine during the cutting process according to the power corresponding to the power parameter value;

[0113] The second board is also used to update the power parameter value based on the actual output power value, the theoretical value of the laser cutting power, and the operating status information of the laser cutting machine, obtain the new power parameter value, and send the new power parameter value to the laser cutting machine.

[0114] This embodiment provides a power intelligent compensation device for a laser cutting machine. A first and a third circuit board monitor the operating status and actual output power of the laser cutting machine in real time. Combined with preset theoretical power values, a second circuit board intelligently adjusts the power parameters. This comprehensive monitoring and intelligent adjustment effectively maintains stability and consistency during the cutting process.

[0115] This embodiment provides a second board in a power intelligent compensation device for a laser cutting machine that can automatically determine whether a new power parameter value is within a preset compensation range. If it is not within the compensation range, it sends a prompt message to the industrial controller. This automatic compensation function can promptly detect and handle situations where the power parameter value deviates from expectations, ensuring cutting quality and stability.

[0116] See Figure 3 The power intelligent compensation device described in this embodiment also includes an industrial control computer and a display;

[0117] The industrial computer is connected to the display and the first board respectively;

[0118] This is used to obtain the actual power output value collected by the power control compensation board through the first board, and to display it as a line on the display.

[0119] Specifically, in this embodiment, the second board updates the power parameter value based on the actual output power value, the theoretical value of the laser cutting power, and the operating status information of the laser cutting machine, obtaining a new power parameter value. This includes:

[0120] The second board acquires the actual output power value of the laser cutting machine during the cutting process according to a preset cycle, and updates the power parameter value based on the theoretical value of the laser cutting power, the operating status information of the laser cutting machine, and the actual output power value acquired in the preset cycle for any preset cycle, thereby acquiring a new power parameter value for the preset cycle.

[0121] The second board is also used to determine whether the power corresponding to the new power parameter value is within a preset compensation range. If the power corresponding to the new power parameter value is not within the compensation range, the first board will send a first prompt message to the industrial controller.

[0122] The industrial controller is also used to control the display to show the first prompt information;

[0123] The first prompt message indicates that the power corresponding to the new power parameter value is not within the compensation range.

[0124] If the power corresponding to the new power parameter value is within the preset compensation range, the second board will send the power value corresponding to the new power parameter value to the laser cutting machine and obtain the power feedback time period.

[0125] The power feedback time period is the time it takes for the second board to send the new power parameter value and the corresponding power value to the laser cutter, and for the second board to collect the actual power output value of the laser cutter.

[0126] If the power feedback time period exceeds the preset time, the second board will send a second prompt message to the industrial controller through the first board.

[0127] The industrial controller is also used to control the display to show the second prompt information;

[0128] The second notification message indicates that the power feedback period has exceeded the preset time.

[0129] This embodiment provides a power intelligent compensation device for a laser cutting machine. Through an industrial control computer and a display, the device can display the actual power output value of the laser cutting machine in real time and display corresponding prompts based on feedback information from a second board. This real-time feedback and monitoring function allows operators to understand the operating status of the laser cutting machine in a timely manner, enabling prompt adjustments and handling.

[0130] This embodiment provides an automated adjustment and real-time monitoring function in the intelligent power compensation device of a laser cutting machine, which reduces manual intervention and improves production efficiency. Simultaneously, by promptly detecting and handling abnormal situations, production interruptions and defect rates can be reduced, further improving production efficiency and product quality.

[0131] This embodiment provides a power intelligent compensation device for a laser cutting machine. The preset cycle, compensation range, and prompt information can be customized and adjusted according to actual needs, which has a certain degree of flexibility and customizability, and can meet the usage requirements under different scenarios and needs.

[0132] Example 3

[0133] See Figure 4 This embodiment provides a laser cutting system with intelligent power compensation, including:

[0134] Laser cutting machine and intelligent power compensation device for laser cutting machine as in Example 2;

[0135] The laser cutting machine includes a controller, a laser, and a laser head;

[0136] The first board in the intelligent power compensation device is connected to the controller of the laser cutting machine;

[0137] The second board in the intelligent power compensation device is connected to the controller and laser of the laser cutting machine.

[0138] The third board in the intelligent power compensation device is connected to the laser head of the laser cutting machine.

[0139] This embodiment provides a laser cutting system with intelligent power compensation. Through an intelligent power compensation device within the laser cutting system, intelligent adjustment and compensation of power can be achieved during the laser cutting process. This ensures that the laser cutting machine maintains stable power output under different process conditions, thereby improving cutting quality and consistency.

[0140] This embodiment provides a laser cutting system with intelligent power compensation that can automatically adjust and update power parameters based on real-time collected information on the laser cutting machine's operating status and actual output power, without manual intervention. This saves manpower and improves production efficiency.

[0141] This embodiment provides a laser cutting system with intelligent power compensation. Through real-time monitoring and adjustment by the intelligent compensation device, it can promptly detect and handle power fluctuations or abnormalities that may occur during the laser cutting process, ensuring stable and consistent cutting quality.

[0142] This embodiment provides a laser cutting system with intelligent power compensation that can adjust the power output of the laser cutting machine according to actual needs, avoiding unnecessary energy waste and improving energy utilization efficiency.

[0143] This embodiment provides a power-intelligent compensated laser cutting system with three boards that are respectively connected to the laser cutting machine's controller, laser, and laser head, achieving tight integration with the laser cutting machine. This ensures the system's stability and reliability and reduces the impact of external interference on the system.

[0144] This embodiment provides a power-intelligent compensated laser cutting system that can be customized and adjusted according to different cutting needs and process parameters, and has a certain degree of flexibility and applicability, which can meet the needs of different users and application scenarios.

[0145] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0146] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0147] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0148] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0149] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A power intelligent compensation method for a laser cutting machine, characterized in that, include: S1. Obtain the operating status information of the laser cutting machine; S2. Based on the laser cutting machine's operating status information and the preset theoretical value of laser cutting power, determine the power parameter value and send the power parameter value to the laser cutting machine; S3. Obtain the actual output power value of the laser cutting machine during the cutting process according to the power corresponding to the power parameter value; S4. Based on the actual output power value, the theoretical value of laser cutting power, and the operating status information of the laser cutting machine, update the power parameter value, obtain the new power parameter value, and send the new power parameter value to the laser cutting machine; The laser cutting machine operating status information includes: the total power value of the laser cutting machine, the operating status of the laser cutting machine, and the process parameters corresponding to the operating status of the laser cutting machine; The laser cutting machine is in either piercing or cutting mode. The process parameters corresponding to the piercing state include: piercing height and cutting nozzle model; The process parameters corresponding to the cutting state include: cutting height and cutting nozzle type; S2 specifically includes: determining the power parameter value using formula (1) based on the laser cutting machine's operating status information and the pre-set theoretical value of the laser cutting power, and sending the power parameter value to the laser cutting machine; wherein, the formula (1) is: (X / Y)×10=M; wherein, X is the theoretical value of the laser cutting power; Y is the total power value of the laser cutting machine; M is the power parameter value; S4 specifically includes: S41. Obtain the actual output power value of the laser cutting machine during the cutting process according to the preset cycle; S42. For any preset period, based on the theoretical value of laser cutting power, the operating status information of the laser cutting machine, and the actual output power value obtained in the preset period, the power parameter value is updated using formula (2) to obtain a new power parameter value for the preset period. The formula (2) is: Z = A + a × (X - B) + a × C; Where A is the power parameter value of the (N-1)th preset cycle; where N≥2, and when N is 2, the value of A is M; B is the actual output power value corresponding to the power parameter value of the (N-1)th preset cycle; C is the cumulative value of the error value of the previous (N-1)th preset cycles; Z is the new power parameter value of the Nth preset cycle; a is the cutting nozzle parameter corresponding to the cutting nozzle model; the error value of the (N-1)th preset cycle = theoretical value of laser cutting power - (actual output power value corresponding to the power parameter value of the (N-1)th preset cycle).

2. The intelligent power compensation method for a laser cutting machine according to claim 1, characterized in that, The cutting nozzle model is obtained based on the perforation height and a pre-defined first correspondence; The first correspondence is the correspondence between the piercing height and the cutting nozzle model; or, The cutting nozzle model is obtained based on the cutting height and a pre-set second correspondence; The second correspondence is the correspondence between cutting height and cutting nozzle model.

3. A power intelligent compensation device for a laser cutting machine used to execute the power intelligent compensation method of the laser cutting machine according to claim 1, characterized in that, The intelligent power compensation device includes: The first board is used to acquire the operating status information of the laser cutting machine; The second board is used to determine the power parameter value based on the laser cutting machine's operating status information and the preset theoretical value of the laser cutting power, and to send the power parameter value to the laser cutting machine. The third board is used to obtain the actual output power value of the laser cutting machine during the cutting process according to the power corresponding to the power parameter value; The second board is also used to update the power parameter value based on the actual output power value, the theoretical value of the laser cutting power, and the operating status information of the laser cutting machine, obtain the new power parameter value, and send the new power parameter value to the laser cutting machine.

4. The intelligent power compensation device for a laser cutting machine according to claim 3, characterized in that, The intelligent power compensation device also includes an industrial control computer and a display. The industrial computer is connected to the display and the first board respectively; This is used to obtain the actual power output value collected by the power control compensation board through the first board, and to display it as a line on the display.

5. The intelligent power compensation device for a laser cutting machine according to claim 4, characterized in that, The second board updates the power parameter values ​​based on the actual output power value, the theoretical value of the laser cutting power, and the operating status information of the laser cutting machine, obtaining new power parameter values, specifically including: The second board acquires the actual output power value of the laser cutting machine during the cutting process according to a preset cycle, and updates the power parameter value based on the theoretical value of the laser cutting power, the operating status information of the laser cutting machine, and the actual output power value acquired in the preset cycle for any preset cycle, thereby acquiring a new power parameter value for the preset cycle. The second board is also used to determine whether the power corresponding to the new power parameter value is within a preset compensation range. If the power corresponding to the new power parameter value is not within the compensation range, the first board will send a first prompt message to the industrial control computer. The industrial control computer is also used to control the display to show the first prompt information; The first prompt message indicates that the power corresponding to the new power parameter value is not within the compensation range.

6. The intelligent power compensation device for a laser cutting machine according to claim 5, characterized in that, If the power corresponding to the new power parameter value is within the preset compensation range, the second board will send the power value corresponding to the new power parameter value to the laser cutting machine and obtain the power feedback time period. The power feedback time period is the time it takes for the second board to send the new power parameter value and the corresponding power value to the laser cutter, and for the second board to collect the actual power output value of the laser cutter. If the power feedback time period exceeds the preset time, the second board will send a second prompt message to the industrial control computer through the first board. The industrial control computer is also used to control the display to show the second prompt information; The second notification message indicates that the power feedback period has exceeded the preset time.

7. A laser cutting system with intelligent power compensation, characterized in that, include: A laser cutting machine and a power intelligent compensation device for the laser cutting machine as described in any one of claims 3-5; The laser cutting machine includes a controller, a laser, and a laser head; The first board in the intelligent power compensation device is connected to the controller of the laser cutting machine; The second board in the intelligent power compensation device is connected to the controller and laser of the laser cutting machine. The third board in the intelligent power compensation device is connected to the laser head of the laser cutting machine.

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