A large model-based stainless steel pipeline welding control system

Abstract

The application discloses a stainless steel pipeline welding control system based on a large model, relates to the technical field of stainless steel pipeline welding control, and comprises a pipeline welding route planning module, a welding parameter control analysis module, a pipeline welding monitoring module, an early warning terminal and a database. The welding mode of the stainless steel pipeline is analyzed, the corresponding connecting line of the stainless steel pipeline is analyzed on the basis of the corresponding welding mode of the stainless steel pipeline, the pipeline welding is planned, the welding mode and the control parameter corresponding to the stainless steel pipeline are analyzed, the high-quality welding parameter control of the stainless steel pipeline is carried out, the welding quality of the stainless steel pipeline is ensured, the control adjustment based on the welding of the stainless steel pipeline is further reduced, the fault tolerance of the frequent welding quality problems of the stainless steel pipeline is avoided, and the effective control of the welding quality of the stainless steel pipeline is realized.

Description

Technical Field

[0001] This invention relates to the field of stainless steel pipe welding control technology, and specifically to a stainless steel pipe welding control system based on a large model. Background Technology

[0002] Stainless steel pipes are widely used in daily life, making their quality particularly crucial. Therefore, the process parameters during welding stainless steel pipes must be strictly controlled to ensure their application quality. By analyzing the corresponding welding route for stainless steel pipes, and then using large-scale modeling technology to match the corresponding welding parameters, high-quality welding of stainless steel pipes can be intelligently controlled.

[0003] Existing technologies, such as the stainless steel pipe welding method disclosed in patent application CN108453349B, are used for welding stainless steel pipes with bevels. This method uses stainless steel flux-cored welding wire, with the welding direction being the circumference of the pipe. The welding process includes the following steps: root pass welding, using argon arc welding combined with filler wire, where the welding torch moves laterally within the bevel along the welding direction to form the root pass; then filler pass welding, using gas shielded welding, where the welding torch moves laterally within the bevel along the welding direction to form the filler pass; and finally capping pass welding, using gas shielded welding, where the welding torch moves laterally within the bevel along the welding direction to form the capping pass. This invention uses stainless steel flux-cored welding wire and argon arc welding to complete the root pass welding, eliminating the need for argon gas backfilling on the weld back side, thus reducing argon gas waste. The filler and capping passes are welded using gas shielded welding, reducing the number of weld joints between the filler and capping passes.

[0004] The above-mentioned solutions have the following technical problems: The invention mainly addresses welding between stainless steel pipes with bevels, using stainless steel flux-cored welding wire in the circumferential direction of the pipe. It does not analyze the basic connection configuration of the stainless steel pipes, making it impossible to perform circuit analysis based on this configuration. This prevents the development of efficient pipe connections suitable for the stainless steel pipes, reducing the pipe connection compatibility. Furthermore, it fails to analyze the welding methods of each node in the stainless steel pipe circuit connection, making it impossible to obtain the optimal welding parameters based on the conditions of the corresponding welding method, thus failing to achieve optimal welding of the stainless steel pipes. It also fails to achieve intelligent welding control of the stainless steel pipes, and does not analyze or evaluate the welding effect. It cannot provide timely and efficient welding control and regulation when the welding effect is poor, reducing the welding quality of the stainless steel pipes and increasing the pipe welding scrap rate. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a stainless steel pipe welding control system based on a large model.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a stainless steel pipe welding control system based on a large model, including: a pipe welding route planning module, used to obtain basic information of the application site corresponding to the stainless steel pipe, and then analyze and obtain the connection form of the corresponding welding of the stainless steel pipe, and based on the analysis of the connection form, analyze and obtain the connection route of the corresponding welding of the stainless steel pipe.

[0007] The welding parameter control and analysis module is used to analyze the welding method of each node under the corresponding welding connection route of the stainless steel pipe, and based on the analyzed welding method, to analyze and obtain the control parameters for welding of each node of the stainless steel pipe.

[0008] The pipeline welding monitoring module is used to weld stainless steel pipelines based on the analyzed control parameters, and to monitor the welding of stainless steel pipelines. It obtains welding data for each node of the stainless steel pipeline, and then judges the welding quality of the corresponding welds and analyzes the control adjustments for the corresponding welds.

[0009] The early warning terminal is used to issue an early warning when the welding quality of a certain welded node on a stainless steel pipe is substandard.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention provides a stainless steel pipe welding control system based on a large model. By analyzing the welding form of the stainless steel pipe, and then analyzing the corresponding connection line of the stainless steel pipe based on the corresponding welding form, planned pipe welding is implemented. The welding method and control parameters of the stainless steel pipe are analyzed to achieve high-quality welding parameter control of the stainless steel pipe, thereby ensuring the welding quality of the stainless steel pipe. At the same time, based on the control and adjustment of the corresponding welding of the stainless steel pipe, the welding scrap rate of the stainless steel pipe is further reduced, the tolerance for frequent welding quality problems of the stainless steel pipe is avoided, and the effective control of the welding quality of the stainless steel pipe is achieved.

[0011] 2. Obtain basic information about the application sites of stainless steel pipes, analyze the connection forms of the corresponding welds, and based on the analysis of the connection forms, analyze the connection routes of the corresponding welds to achieve efficient stainless steel pipe welding. By adopting planned pipe welding, the welding of stainless steel pipes becomes more efficient and smooth.

[0012] 3. By analyzing the welding methods of each node in the corresponding connection line of the stainless steel pipeline, and based on the analyzed welding methods, the control parameters for welding of each node of the stainless steel pipeline are obtained, so as to effectively control the welding quality of the stainless steel pipeline, thereby improving the welding efficiency of the stainless steel pipeline and ensuring the welding stability of the stainless steel pipeline welding quality.

[0013] 4. Based on the analyzed control parameters, stainless steel pipes are welded, and the welding process is monitored to obtain welding data for each node of the stainless steel pipe. This allows for the assessment of the welding quality and the analysis of control adjustments to ensure the welding quality of the stainless steel pipes, reduce the scrap rate, and minimize the tolerance for frequent welding quality problems. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the system structure connection of the present invention. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1 As shown, a stainless steel pipe welding control system based on a large model includes a pipe welding route planning module, a welding parameter control and analysis module, a pipe welding monitoring module, an early warning terminal, and a database.

[0018] The welding parameter control and analysis module is connected to the pipeline welding route planning module and the pipeline welding monitoring module, respectively. The pipeline welding monitoring module is connected to the early warning terminal and the database, respectively. The database is connected to the pipeline welding route planning module and the welding parameter control and analysis module, respectively.

[0019] The pipeline welding route planning module is used to obtain basic information about the application site of stainless steel pipelines, then analyze the connection form of the corresponding welds of stainless steel pipelines, and based on the analysis of the connection form, analyze the connection route of the corresponding welds of stainless steel pipelines.

[0020] It should be noted that the connection forms are: straight-straight-bend-straight-bend-straight or straight-bend-bend-straight-bend, etc.; the sequential connection routes are: 1. Straight pipe welding - straight pipe welding - straight-bend pipe connection - straight pipe connection - bend pipe connection; 2. Straight-bend pipe connection - straight pipe connection - bend pipe connection - straight pipe welding - straight pipe welding, etc.

[0021] It should be noted that the basic information includes media flow data, spatial layout data, and stress distribution data; media flow data is obtained using an ultrasonic Doppler velocimeter and a fiber optic spectrometer; spatial layout data is obtained using a 3D laser scanner and BIM software combined with a total station; stress distribution data is obtained using strain gauges and accelerometers; media flow data includes flow velocity or corrosion rate, etc.; spatial layout data includes safe locations or maintenance space volumes, etc.; stress distribution data includes thermal expansion or vibration frequency, etc.

[0022] As an optional implementation, the analysis obtains the connection form of the welded stainless steel pipe. The specific analysis process is as follows: Basic information corresponding to the stainless steel pipe is obtained, including medium flow data, spatial layout data, and stress distribution data. The medium flow data corresponding to the stainless steel pipe is compared with the medium flow data corresponding to historical pipe welding forms stored in the database. Simultaneously, the spatial layout data and stress distribution data corresponding to the stainless steel pipe are compared with the spatial layout data and stress distribution data corresponding to historical pipe welding forms stored in the database. When the medium flow data corresponding to the stainless steel pipe is the same as the medium flow data corresponding to a certain historical pipe welding form stored in the database, and the spatial layout data and stress distribution data corresponding to the stainless steel pipe are the same as the spatial layout data and stress distribution data corresponding to that historical pipe welding form stored in the database, then that pipe welding form is taken as the connection form of the welded stainless steel pipe.

[0023] As an optional implementation method, the analysis obtains the connection route of the stainless steel pipe corresponding to the welding. The specific analysis process is as follows: based on the connection form of the stainless steel pipe corresponding to the welding, the corresponding form welding is then carried out on this basis. The nodes of the pipe corresponding to the welding are extracted according to the connection form diagram of the pipe and the number of pipes.

[0024] The welding bevel data and welding form data of each node of the stainless steel pipeline are compared with the reference welding bevel data and reference welding form data of each reference route stored in the database. If the welding bevel data of a certain node of the stainless steel pipeline is the same as the reference welding bevel data of a certain reference route stored in the database, and the reference welding form data of that node is also the same as the reference welding form data of that reference route stored in the database, then that reference route is taken as the connection route for the current welding of the stainless steel pipeline.

[0025] If the weld bevel data of a certain node of the stainless steel pipe is the same as the reference weld bevel data of a certain reference route stored in the database, but the reference weld shape data of that node is different from the reference weld shape data of that reference route stored in the database, then the welding sequence corresponding to the weld bevel data in that reference route is taken, and the reference weld shape data corresponding to that node is compared with the reference weld shape data of the remaining reference routes. If the reference weld shape data corresponding to that node is the same as the reference weld shape data of a certain reference route, then the welding sequence corresponding to the welding shape data in that reference route is taken. Based on the size of the welding sequence corresponding to the weld bevel data and the welding shape data, welding routes are formed from large to small sequence, and the connection route of the stainless steel pipe is obtained by analysis.

[0026] It should be noted that if the weld bevel data of a certain node of a stainless steel pipe is different from the reference weld bevel data of a certain reference route stored in the database, but the reference weld shape data of that node is the same as the reference weld shape data of the reference route stored in the database, the method of analyzing the connection route is the same as the method of analyzing the same weld bevel data but different weld shape data, and will not be elaborated further here.

[0027] It should also be noted that reference welding groove data and reference welding shape data are set by professional welders; the reference welding groove data and reference welding shape data are reference values ​​used to determine the corresponding welding connection route of the current stainless steel pipe.

[0028] It should be noted that the welding groove data includes the groove angle or blunt edge size, etc.; the welding morphology data includes the morphology type, etc.

[0029] By obtaining basic information about the application sites of stainless steel pipes, analyzing the corresponding welding connection forms of stainless steel pipes, and based on the analysis of the connection forms, the corresponding welding connection routes of stainless steel pipes are obtained, thereby achieving efficient stainless steel pipe welding. By adopting planned pipe welding, the welding of stainless steel pipes becomes more efficient and smooth.

[0030] The welding parameter control and analysis module is used to analyze the welding method of each node under the corresponding welding connection route of the stainless steel pipe, and based on the analyzed welding method, to analyze and obtain the control parameters for welding of each node of the stainless steel pipe.

[0031] It should be noted that elemental data includes chromium, nickel, or carbon, etc.; mechanical property data includes hardness or toughness, etc., and the material data is obtained from the specification material information of the stainless steel pipe.

[0032] It should be noted that if the elemental data and mechanical property data of the stainless steel pipe are not within the reference data of the same welding method, the welding method with the higher reference welding quality coefficient threshold will be used as the welding method for the current stainless steel pipe connection route.

[0033] It should also be noted that reference element data and reference mechanical property data are set by professional welders; the reference element data and reference mechanical property data are reference values ​​used to determine the welding method of each node under the corresponding connection line of the stainless steel pipe.

[0034] As an optional implementation, the analysis obtains the welding method of each node under the corresponding connection line of the stainless steel pipe. The specific analysis process is as follows: Obtain the material data of the stainless steel pipe under the connection line, including element data and mechanical property data. Compare the element data of the front and rear stainless steel pipes under the corresponding node with the reference element data corresponding to each welding method stored in the database. At the same time, compare the mechanical property data of the front and rear stainless steel pipes under the corresponding node with the reference mechanical property data corresponding to each welding method stored in the database. When the element data and mechanical property data of the front and rear stainless steel pipes under the corresponding node are the same as the reference element data and reference mechanical property data corresponding to a certain welding method, then the welding method is taken as the welding method of the first node of the stainless steel pipe under the connection line. And so on, to obtain the welding method of each node under the corresponding connection line of the stainless steel pipe.

[0035] As an optional implementation, the analysis obtains the control parameters for welding at each node of the stainless steel pipe. The specific analysis process is as follows: Based on the welding method of each node under the corresponding connection line of the stainless steel pipe, the historical reference critical value and historical reference safe value of the corresponding welding method of each node of the stainless steel pipe are obtained from the database, and the reference welding safe range is obtained based on the historical reference critical value and historical reference safe value.

[0036] The wall thickness of each welded node of the stainless steel pipe is obtained, and the wall thickness of each welded node of the stainless steel pipe is compared with the reference welding safety range of the wall thickness of each historical welded node of the stainless steel pipe. If the wall thickness of a certain welded node of the stainless steel pipe is within the reference welding safety range of the wall thickness of a certain historical welded node of the stainless steel pipe, then the welding control parameter corresponding to the wall thickness of that node within the welding safety range is used as the welding control parameter of the first node of the stainless steel pipe. By comparison and analogy, the welding control parameters of each node of the stainless steel pipe are obtained.

[0037] It should be noted that the control parameters include welding current, voltage, speed, and gas flow rate.

[0038] By analyzing the welding methods of each node in the corresponding connection line of the stainless steel pipeline, and based on the analyzed welding methods, the control parameters for welding of each node of the stainless steel pipeline are obtained, so as to effectively control the welding quality of the stainless steel pipeline, thereby improving the welding efficiency of the stainless steel pipeline and ensuring the welding stability of the stainless steel pipeline welding quality.

[0039] The pipeline welding monitoring module is used to weld stainless steel pipelines based on the analyzed control parameters, and to monitor the welding of stainless steel pipelines. It obtains welding data for each node of the stainless steel pipeline, and then judges the welding quality of the corresponding welds and analyzes the control adjustments for the corresponding welds.

[0040] It should be noted that the welding images of each welded node of the stainless steel pipe are obtained using a camera, and the oxide color is extracted from the welding images. The oxide color of the stainless steel pipe is silver-white or golden yellow. The angular deformation of each welded node of the stainless steel pipe is obtained using an angle ruler, and the angular deformation is ≤3°. The weld roughness of each welded node of the stainless steel pipe is obtained using a roughness meter, and the weld roughness is ≤0.8μm.

[0041] As an optional implementation, the welding data includes oxide color, angular deformation, and weld roughness.

[0042] As an optional implementation, the specific process for judging the welding quality of the stainless steel pipe is as follows: Welding data for each node of the stainless steel pipe is imported into the stainless steel pipe welding quality evaluation model. Then, the quality assessment result value for each node of the stainless steel pipe is analyzed. If the quality assessment result value for a certain node of the stainless steel pipe is 1, the welding quality of that node is deemed qualified. If the quality assessment result value for a certain node of the stainless steel pipe is 0, the welding quality of that node is deemed unqualified. Further welding problem analysis is then performed on the unqualified welding nodes of the stainless steel pipe to determine the welding quality of the corresponding weld.

[0043] As an optional implementation, the analysis yields quality assessment results for each welded node of the stainless steel pipe. The specific analysis process is as follows: using a stainless steel pipe welding quality evaluation model: Where β d Y′ represents the quality assessment result value of the welded d-th node of the stainless steel pipe, J′ represents the set reference oxide color of the stainless steel pipe, H′ represents the set reference angular deformation of the stainless steel pipe, and Y′ represents the set reference weld roughness of the stainless steel pipe. d J represents the oxide color of the d-th weld node on the stainless steel pipe. d H represents the angular deformation of the d-th weld node on the stainless steel pipe. d R represents the weld roughness of the d-th node of the stainless steel pipe, and R is the reference quality value of the stainless steel pipe. d is the number of each node, d = 1, 2, ..., ..., n, where n is any integer greater than 2.

[0044] It should be noted that the reference oxidation color, reference angular deformation, reference weld roughness, and reference quality value are set by professional welders. The reference quality value is a reference value used to judge the welding quality of the corresponding weld on the stainless steel pipe. The setting process for the reference oxidation color, reference angular deformation, and reference weld roughness is the same as that for the reference quality value, so it will not be described again.

[0045] It should be noted that the reference control parameter data is set by professional welders. The reference control parameter data is used to determine whether the control parameter data corresponding to the current stainless steel pipe is compliant. The reference control data includes welding torch angle and nozzle angle, welding current and voltage, number of welding layers and oscillation frequency, etc.

[0046] As an optional implementation, the analysis yields the control adjustment for the corresponding welding of stainless steel pipes. The specific analysis process is as follows: Based on the difference between the data in the quality assessment results of each node of the corresponding welding of stainless steel pipes and the reference data, if the difference between the oxide color data in the quality assessment results of a certain node of the corresponding welding of stainless steel pipes and the reference oxide color data is large, then the control parameter data affecting the oxide color is extracted from the control parameters of the corresponding welding of stainless steel pipes, and the extracted control parameter data is compared with the reference control parameter data stored in the database to obtain the difference between the control parameter data. Based on the obtained difference, one difference is subtracted to make the control parameter data less than the reference control parameter data. The subtracted control parameter data is used as the control adjustment for the corresponding welding of stainless steel pipes. In this way, the welding adjustment for a certain node of stainless steel pipes with angular deformation and weld roughness quality is obtained by analogy, and the control adjustment for the corresponding welding of stainless steel pipes is obtained through analysis.

[0047] Welding of stainless steel pipes is performed based on the analyzed control parameters. Simultaneously, the welding of stainless steel pipes is monitored to obtain welding data for each node of the stainless steel pipe. This allows for the assessment of the welding quality of the corresponding welds and the analysis of control adjustments to ensure the welding quality of stainless steel pipes, reduce the scrap rate of stainless steel pipes, and avoid frequent welding quality problems.

[0048] The database is used to store basic information, reference weld bevel data, reference weld morphology data, material data, reference element data, reference mechanical property data, historical reference critical values, historical reference safe values, wall thickness, and welding data.

[0049] The early warning terminal is used to issue an early warning when the welding quality of a certain welded node on a stainless steel pipe is substandard.

[0050] This invention analyzes the welding morphology of stainless steel pipes, and then, based on the corresponding welding morphology, analyzes the corresponding connection lines of the stainless steel pipes. It then implements planned pipe welding, analyzes the corresponding welding methods and control parameters, and performs high-quality welding parameter control to ensure the welding quality of the stainless steel pipes. Furthermore, based on the control and adjustment of the corresponding welding, it further reduces the welding scrap rate of stainless steel pipes, avoids frequent welding quality problems, and achieves effective control over the welding quality of stainless steel pipes.

[0051] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.

Claims

1. A stainless steel pipe welding control system based on a large model, characterized in that, include: The pipeline welding route planning module is used to obtain basic information about the application site of stainless steel pipelines, then analyze the connection form of the corresponding welding of stainless steel pipelines, and based on the analysis of the connection form, analyze the connection route of the corresponding welding of stainless steel pipelines. The analysis yielded the corresponding welded connection configurations for the stainless steel pipes. The specific analysis process is as follows: Obtain basic information for the stainless steel pipeline, including media flow data, spatial layout data, and stress distribution data. Compare the media flow data for the stainless steel pipeline with the media flow data for each historical pipeline welding form stored in the database. Simultaneously, compare the spatial layout data and stress distribution data for the stainless steel pipeline with the spatial layout data and stress distribution data for each historical pipeline welding form stored in the database. If the media flow data for the stainless steel pipeline is the same as the media flow data for a certain historical pipeline welding form stored in the database, and the spatial layout data and stress distribution data for the stainless steel pipeline are also the same as the spatial layout data and stress distribution data for that historical pipeline welding form stored in the database, then that pipeline welding form is taken as the connection form for the corresponding weld of the stainless steel pipeline. The welding parameter control and analysis module is used to analyze the welding method of each node under the corresponding connection line of the stainless steel pipe according to the welding connection route, and to analyze the control parameters of welding of each node of the stainless steel pipe based on the analyzed welding method. The pipeline welding monitoring module is used to weld stainless steel pipelines based on the analyzed control parameters, and at the same time monitor the welding of stainless steel pipelines, obtain welding data of each node of stainless steel pipeline, and then judge the welding quality of the corresponding weld of stainless steel pipeline, and analyze and obtain the control adjustment of the corresponding weld of stainless steel pipeline. The early warning terminal is used to issue an early warning when the welding quality of a certain welded node on a stainless steel pipe is substandard.

2. The stainless steel pipe welding control system based on a large model as described in claim 1, characterized in that, The analysis yielded the corresponding welded connection routes for the stainless steel pipes. The specific analysis process is as follows: Based on the connection form of the stainless steel pipe corresponding to the welding, the corresponding form welding is then carried out on this basis. The nodes of the pipe corresponding to the welding are extracted by the connection form diagram of the pipe and the number of pipes. The welding bevel data and welding form data of each node of the stainless steel pipe are compared with the reference welding bevel data and reference welding form data of each reference route stored in the database. If the welding bevel data of a certain node of the stainless steel pipe is the same as the reference welding bevel data of a certain reference route stored in the database, and the reference welding form data of that node is also the same as the reference welding form data of that reference route stored in the database, then the reference route is taken as the connection route of the current stainless steel pipe welding. If the weld bevel data of a certain node of the stainless steel pipe is the same as the reference weld bevel data of a certain reference route stored in the database, but the reference weld shape data of that node is different from the reference weld shape data of that reference route stored in the database, then the welding sequence corresponding to the weld bevel data in that reference route is taken, and the reference weld shape data corresponding to that node is compared with the reference weld shape data of the remaining reference routes. If the reference weld shape data corresponding to that node is the same as the reference weld shape data of a certain reference route, then the welding sequence corresponding to the welding shape data in that reference route is taken. Based on the size of the welding sequence corresponding to the weld bevel data and the welding shape data, welding routes are formed from large to small sequence, and the connection route of the stainless steel pipe is obtained by analysis.

3. The stainless steel pipe welding control system based on a large model as described in claim 2, characterized in that, The analysis yielded the welding methods for each node in the corresponding connection line of the stainless steel pipe. The specific analysis process is as follows: Obtain the material data of the stainless steel pipes under the connection route, including element data and mechanical property data. Compare the element data of the front and rear stainless steel pipes under the corresponding node with the reference element data of each welding method stored in the database. At the same time, compare the mechanical property data of the front and rear stainless steel pipes under the corresponding node with the reference mechanical property data of each welding method stored in the database. If the element data and mechanical property data of the front and rear stainless steel pipes under the corresponding node are the same as the reference element data and reference mechanical property data of a certain welding method, then the welding method is taken as the welding method of the first node of the stainless steel pipe under the connection route. And so on, to obtain the welding method of each node under the corresponding connection route.

4. The stainless steel pipe welding control system based on a large model as described in claim 3, characterized in that, The analysis yielded the control parameters for welding at each node of the stainless steel pipe. The specific analysis process is as follows: Based on the welding method of each node under the corresponding connection line of the stainless steel pipe, the historical reference critical value and historical reference safe value of the corresponding stainless steel pipe for each node welding method are obtained from the database, and the reference welding safe range is obtained based on the historical reference critical value and historical reference safe value. The wall thickness of each welded node of the stainless steel pipe is obtained, and the wall thickness of each welded node of the stainless steel pipe is compared with the reference welding safety range of the wall thickness of each historical welded node of the stainless steel pipe. If the wall thickness of a certain welded node of the stainless steel pipe is within the reference welding safety range of the wall thickness of a certain historical welded node of the stainless steel pipe, then the welding control parameter corresponding to the wall thickness of that node within the welding safety range is used as the welding control parameter of the first node of the stainless steel pipe. By comparison and analogy, the welding control parameters of each node of the stainless steel pipe are obtained.

5. The stainless steel pipe welding control system based on a large model as described in claim 1, characterized in that, The welding data includes oxidation color, angular deformation, and weld roughness.

6. The stainless steel pipe welding control system based on a large model as described in claim 5, characterized in that, The specific process for judging the welding quality of the stainless steel pipe is as follows: Import the welding data of each node corresponding to the stainless steel pipeline into the stainless steel pipeline welding quality evaluation model, and then analyze to obtain the quality evaluation result value of each node corresponding to the stainless steel pipeline welding. If the quality evaluation result value of a certain node corresponding to the stainless steel pipeline welding is 1, it is determined that the welding quality of the corresponding node of the stainless steel pipeline is qualified. If the quality evaluation result value of a certain node corresponding to the stainless steel pipeline welding is 0, it is determined that the welding quality of the corresponding node of the stainless steel pipeline is unqualified. Then, further analyze the welding problems of the unqualified phenomenon of the corresponding welding node of the stainless steel pipeline to judge the welding quality of the corresponding welding of the stainless steel pipeline.

7. The stainless steel pipe welding control system based on a large model as described in claim 6, characterized in that, The analysis to obtain the quality evaluation result value of each node corresponding to the stainless steel pipeline welding is as follows: A model for evaluating the welding quality of stainless steel pipes: ,in For welding the corresponding stainless steel pipe The quality assessment result value of each node, The reference oxidation color for the stainless steel pipe is set. The reference angle deformation for the stainless steel pipe is set. This is a reference weld roughness setting for stainless steel pipes. For welding the corresponding stainless steel pipe The oxidation color of each node, For welding the corresponding stainless steel pipe angular deformation of each node, For welding the corresponding stainless steel pipe Weld roughness at each node, The set reference quality value for stainless steel pipes, For each node, , where n is any integer greater than 2.

8. The stainless steel pipe welding control system based on a large model as described in claim 7, characterized in that, The analysis to obtain the control adjustment of the corresponding welding of the stainless steel pipeline is as follows: Based on the difference value between the data in the quality evaluation result value of each node corresponding to the stainless steel pipeline welding and the reference data, if the difference between the oxidation color data in the quality evaluation result value of a certain node corresponding to the stainless steel pipeline welding and the reference oxidation color data is large, extract the control parameter data affecting the oxidation color from the control parameters of the corresponding welding of the stainless steel pipeline, and compare the extracted control parameter data with the reference control parameter data stored in the database to obtain the distance difference between the control parameter data. On the basis of obtaining the distance difference, subtract one more difference value to make the control parameter data smaller than the reference control parameter data. Take the decreased control parameter data as the control adjustment of the corresponding welding of the stainless steel pipeline. In this way, by analogy, obtain the welding adjustment under the angular deformation and weld roughness quality of a certain node of the stainless steel pipeline, and analyze to obtain the control adjustment of the corresponding welding of the stainless steel pipeline.

9. The stainless steel pipe welding control system based on a large model as described in claim 1, characterized in that, It also includes a database, which is used to store basic information, reference welding groove data, reference welding form data, material data, reference element data, reference mechanical property data, historical reference critical values, historical reference safety values, wall thickness and welding data.

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