Full-automatic intelligent vertical type welding profile steel production line and profile steel production method

Abstract

The invention discloses a full-automatic intelligent vertical type welding profile steel production line and a profile steel production method. The production line comprises an MES management system, a central control system, an intelligent transfer center and an intelligent welding center. The central control system receives production task information from the MES management system, then distributes the production tasks to production equipment, collects data of a production line and transmits the data back to the MES management system; the intelligent transfer center receives the production logistics information from the central control system by means of the intelligent program control traveling system, identifies specific material information in a steel plate warehouse area, and lifts the steel plates in the warehouse area to a polishing and chamfering station; the intelligent welding center comprises on-line polishing and chamfering equipment, an on-line arc striking / quenching plate adding device, an on-line accompanying preheating device, intelligent installing, welding and correcting equipment, a welding slag cleaning and collecting device and an intelligent welding wire and welding flux detecting device. The problems that an existing H-shaped steel production method is poor in quality stability and low in machining efficiency and automation degree are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure processing, and in particular to a full-automatic intelligent vertical welding steel production line and a steel production method. Background Art

[0002] At present, most of the existing H-beam processing production lines in my country's steel structure enterprises are still in the single-machine operation stage, with a relatively low level of automation, and there is still a large gap from intelligent production. At the current stage, although some leading steel structure processing companies have begun to build automated production bases, implement automated processing processes, and promote the research and development of intelligent technologies, there are still certain shortcomings. Therefore, to fully realize the development path of intelligent manufacturing steel structures, it still requires a relatively long process of exploration and practice.

[0003] The existing H-beam production lines mainly have the following two modes:

[0004] One mode is to complete the assembly, welding and straightening processes through independent assembly machines, gantry welding and straightening machines. Although this mode has a wide range of product applicability and can produce H-beams of various specifications, its process is relatively cumbersome, the logistics and transportation efficiency is low, it is time-consuming and labor-intensive, and it is difficult to ensure the consistency of product quality, which is its significant disadvantage.

[0005] Another model is to use a semi-automatic welding and straightening machine for the production and processing of small H-beams. This method reduces the reliance on manual labor to a certain extent and improves production efficiency. However, it should be regarded as the use of local automation equipment rather than intelligent manufacturing of production lines. Specifically, this model lacks a complete information management system to achieve data analysis, optimization integration and overall arrangement of production lines.

[0006] Therefore, it is necessary to develop an intelligent vertical welded steel production line to achieve interconnection between the production line equipment and the MES system, and to complete the loading, grinding, chamfering, assembly, welding, and straightening processing, open up the data chain of each process of intelligent production, and realize the intelligent production of H-shaped steel. Summary of the invention

[0007] Due to the above-mentioned defects in the prior art, the present invention provides a fully automatic intelligent vertical welded H-shaped steel production line and a steel production method, aiming to solve the problems of poor quality stability, low processing efficiency and low degree of automation in the existing H-shaped steel production method.

[0008] To achieve the above object, on the one hand, the present invention provides a fully automatic intelligent vertical welding steel production line, comprising:

[0009] MES (Manufacturing Execution System) management system, which handles the execution of production plans and data management of the production process;

[0010] The central control system receives the production task information from the MES management system, and then distributes these production tasks to the production equipment, monitors the operation status of the production line in real time, collects the data of the production line, and transmits the real-time acquired data information back to the MES management system;

[0011] The intelligent transfer center, relying on the intelligent program-controlled driving system, receives the production logistics information from the central control system, and automatically identifies the specific material information of the H-shaped steel flange and web in the steel plate storage area, and then hoists the steel plates in the storage area to the grinding and chamfering station of the flange and web;

[0012] Intelligent welding center, including online grinding and chamfering equipment, online arc-starting / extinguishing plate adding device, online accompanying preheating device, intelligent welding and rectification equipment, welding slag cleaning and collection device and intelligent detection device for welding wire and flux;

[0013] Among them, the MES management system converts production plans and work orders into production tasks and tracks production progress in real time; it collects and analyzes production data in real time, identifies bottlenecks and quality problems in production, and provides improvement suggestions; the online grinding and chamfering equipment, online adding arc striking / extinguishing plate device and intelligent assembly welding and correction equipment are connected in sequence through automatic conveyor rollers.

[0014] The fully automatic intelligent vertical welded steel production line realizes the interconnection between the production line equipment and the MES management system, and completes the processing from feeding, grinding, chamfering, assembly, welding, and correction, opening up the data chain of each process of intelligent production to realize the intelligent production of H-shaped steel. From the storage of raw materials to the delivery of finished products, the detailed information of each production batch, the use of raw materials, the status of production equipment, the records of operators, and every link in the process can be tracked and managed, thereby helping enterprises to trace quality and optimize production. The welding slag cleaning and collection device automatically cleans and collects the welding slag on the weld, thereby ensuring the efficiency of the welding process and improving the welding quality.

[0015] Furthermore, the intelligent welding center includes three grinding areas: lower wing plate grinding area, upper wing plate grinding area and web plate grinding area; each grinding area is equipped with special equipment for grinding and chamfering the wing plate and web plate, and the special equipment integrates automatic conveying roller and grinding and chamfering equipment. The steel plate to be processed is conveyed to the inside of the workstation through the roller, and the one-time grinding and chamfering forming operation is completed in the workstation.

[0016] Furthermore, the web and wing plates of the H-shaped steel are conveyed to the designated workstation of the online arc-starting / extinguishing plate adding device via an automatic conveyor roller; the online arc-starting / extinguishing plate adding device automatically adds arc-starting plates and arc-extinguishing plates to both ends of the web and wing plates, and fixes them by spot welding through a welding robot.

[0017] Furthermore, for H-shaped steels composed of high-strength steel plates, H-shaped steels with thicker wing plates, or welding operations at lower ambient temperatures, the online accompanying preheating device adopts medium-frequency induction heating technology to automatically heat the weld area before welding, and monitors the temperature status in real time to ensure that it meets the established process requirements.

[0018] Furthermore, the intelligent assembly welding and straightening equipment includes a T-type assembly welding and straightening area and an H-type assembly welding and straightening area, both of which are equipped with a vertical assembly welding and straightening machine; in the T-type assembly welding and straightening area, the vertical assembly welding and straightening machine is used to perform T-type assembly and fixing operations on the web and one side wing plate; the vertical assembly welding and straightening machine automatically matches and calls the corresponding welding process parameters in the welding database, thereby completing the welding process of the web and one side wing plate, and automatically corrects during welding; after the T-shaped steel is rotated 90° by the turning frame, it is transmitted to the H-type assembly welding and straightening area, and is assembled, welded and corrected with the other side wing plate.

[0019] Furthermore, when the intelligent detection device for welding wire and flux detects that the remaining amount of welding wire or flux is insufficient to complete the welding operation of the entire weld, an alarm feedback mechanism is immediately triggered.

[0020] On the other hand, the present invention provides a method for producing steel sections, which uses the fully automatic intelligent vertical welding steel section production line as described above to perform operations, comprising the following steps:

[0021] Step S1: The MES management system generates production tasks according to the processing plan and sends the tasks to the central control system of each center. The central control system of each center dispatches the tasks to the subordinate equipment and monitors and controls them in real time;

[0022] Step S2, the program-controlled crane hoists the web and wing plates in the storage location according to the established production task, and transports them to the automatic conveying roller of the grinding and chamfering station;

[0023] Step S3: for the steel plate on the automatic conveyor roller, confirm its material information by scanning the code, and then execute the automatic centering process; then, detect the length and width of the incoming material, and after confirmation, the steel plate will be automatically conveyed to the grinding and chamfering workstation, chamfer the four edges of the steel plate, and grind its welding area; after the grinding of the steel plate is completed, it will be conveyed to the next station through the conveyor roller;

[0024] Step S4, at the station for automatically adding arc-starting plates and arc-extinguishing plates online, the steel plate is conveyed here, and then the arc-starting plates and arc-extinguishing plates are automatically added at both ends and fixed by spot welding;

[0025] Step S5: After the arc-starting plate and the arc-extinguishing plate are added, the intelligent assembly welding and correction equipment scans the QR code information of the web and the wing plate, and compares and confirms it with the processing instructions issued by the MES management system; after confirmation, the web and the two side wing plates are assembled, welded and corrected in turn;

[0026] Step S6: The assembled, welded and corrected H-beam is transported to the finished welding product buffer area by a program-controlled crane for flaw detection.

[0027] Furthermore, in step S5, the intelligent assembly welding and straightening equipment includes a T-type assembly welding and straightening area and an H-type assembly welding and straightening area, both of which are equipped with a vertical assembly welding and straightening machine; in the T-type assembly welding and straightening area, the vertical assembly welding and straightening machine is used to perform T-type assembly and fixing operations on the web and one side wing plate; the vertical assembly welding and straightening machine automatically matches and calls the corresponding welding process parameters in the welding database, thereby completing the welding process of the web and one side wing plate, and automatically corrects during welding; after the T-shaped steel is rotated 90° by the turning frame, it is transmitted to the H-type assembly welding and straightening area, and is assembled, welded and corrected with the other side wing plate.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The present invention adopts the MES management system to uniformly dispatch and manage the various automated processing centers of the production line, implements the assembly line automated production operation mode, and at the same time conducts in-depth analysis and optimization processing of production data, thereby realizing a scientific decision-making mechanism based on data and effectively improving the operating efficiency of the production line.

[0030] (2) The present invention can realize functions such as automatic grinding and chamfering, automatic online addition of arc starting plates and arc extinguishing plates, automatic online preheating, automatic matching and calling up of welding process parameters, and automatic cleaning and collection of welding slag, thereby providing an intelligent unmanned automatic vertical welding steel production line, which significantly improves the processing quality and stability of H-shaped steel and fills the gap in the domestic fully automatic intelligent vertical welding steel production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention and its features and advantages will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following accompanying drawings.

[0032] Figure 1 This is a structural diagram of a fully automatic intelligent vertical welding steel production line in one embodiment of the present invention;

[0033] Among them, 100, MES management system; 200, central control system; 300, intelligent transfer center; 400, intelligent welding center; 401, online grinding and chamfering equipment; 402, online adding arc starting / extinguishing plate device; 403, intelligent assembly welding and correction equipment; 404, online accompanying preheating device; 405, welding slag cleaning and collection device; 406, intelligent detection device for welding wire and flux. DETAILED DESCRIPTION

[0034] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be understood that all of these exemplary embodiments described are only partial embodiments and examples of the present invention, rather than all of them. On the contrary, these exemplary embodiments are provided so that those skilled in the art can more thoroughly understand the present disclosure and can more completely convey the technical content of the present disclosure to those skilled in the art.

[0035] It should be noted that the structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of its power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by programming by technical personnel in this field.

[0036] Example

[0037] See also Figure 1 The present embodiment provides a fully automatic intelligent vertical welding steel production line, including a production line intelligent management center - MES management system 100, a central control system 200, an intelligent transfer center 300 and an intelligent welding center 400.

[0038] MES management system 100: The MES management system 100 is mainly responsible for the execution of production plans and data management of the production process. Its key functions include production scheduling, process management, quality control and data tracking. The MES management system 100 converts production plans and work orders into specific production tasks, and tracks the production progress in real time to ensure that production proceeds as planned. Through real-time collection and analysis of production data, the MES management system 100 can identify bottlenecks and quality problems in production and provide suggestions for improvement. From the entry of raw materials to the exit of finished products, detailed information on each production batch in the process, raw material usage, production equipment status, operator records and other links can be tracked and managed, thereby helping enterprises to trace quality and optimize production.

[0039] Central control system 200: The main function of the central control system 200 is to achieve real-time control and data collection of equipment. Its core features include real-time data collection, equipment status monitoring, process control and alarm management. In actual applications, the central control system 200 of each center is responsible for receiving production task information from the MES management system 100, and then assigning these production tasks to the following equipment. At the same time, the system can monitor the operating status of the production line in real time, collect production line data, and then transmit the real-time acquired data information back to the MES management system 100.

[0040] Intelligent transfer center 300: The intelligent transfer center 300 relies on the intelligent program-controlled driving system to receive the production logistics information from the central control system 200, and automatically and accurately identify the specific material information of the three major parts of H-shaped steel (i.e., wing plates and web plates) in the steel plate storage area. Subsequently, the steel plates in the storage area are accurately lifted to the grinding and chamfering stations of the wing plates and web plates.

[0041] Intelligent welding center 400: The intelligent welding center 400 is equipped with an online grinding and chamfering device 401, an online arc-starting / extinguishing plate adding device 402, an online accompanying preheating device 404, an intelligent assembly welding and rectification device 403, a welding slag cleaning and collecting device 405, and an intelligent detection device for welding wire and flux 406. The online grinding and chamfering device 401, the online arc-starting / extinguishing plate adding device 402, and the intelligent assembly welding and rectification device 403 are sequentially connected through an automatic conveying roller.

[0042] As a preferred technical solution, the intelligent welding center 400 includes three grinding areas, specifically the lower wing plate grinding area, the upper wing plate grinding area and the web plate grinding area. Each area is equipped with special equipment for grinding and chamfering the wing plate and the web plate, which integrates a power conveying roller and a grinding and chamfering workstation. The steel plate to be processed is conveyed to the inside of the workstation through the roller, and a one-time grinding and chamfering forming operation is completed in the workstation.

[0043] The intelligent welding center 400 is equipped with a device for automatically adding arc-starting plates and arc-extinguishing plates online. The web and wing plates of the H-shaped steel are transported to the designated workstation of the device via an automatic conveyor roller. The device can automatically add arc-starting plates and arc-extinguishing plates to both ends of the web and wing plates, and fix them by spot welding with a welding robot.

[0044] The intelligent welding center 400 is equipped with an automatic online accompanying preheating device 404, which can use medium frequency induction heating technology. In welding operations, for H-shaped steel composed of high-strength steel plates, H-shaped steel with thick wing plates, or welding operations at low ambient temperatures, the system can automatically heat the weld area before welding and monitor the temperature status in real time to ensure that it meets the established process requirements.

[0045] As a preferred technical solution, the intelligent welding center 400 covers the T-type welding and straightening area and the H-type welding and straightening area, both of which are equipped with a vertical welding and straightening machine. In the T-type welding and straightening area, the vertical welding and straightening machine is used to perform T-type assembly and fixing operations on the web and one side wing. The vertical welding and straightening machine automatically matches and calls the corresponding welding process parameters in the welding database, and then completes the welding process of the web and one side wing, and automatically corrects during welding. Furthermore, after the T-shaped steel is rotated 90° by the turning frame, it is transferred to the H-type welding and straightening area for assembly, welding and straightening with the other side wing.

[0046] The intelligent welding center 400 includes a welding slag cleaning and collecting device 405, which can automatically clean and collect welding slag on the weld. The welding slag on the weld can be automatically cleaned and collected, thereby ensuring the high efficiency of the welding process and the improvement of welding quality.

[0047] The intelligent welding center 400 is equipped with an intelligent detection device 406 for welding wire and flux. When it is detected that the remaining amount of welding wire or flux is insufficient to complete the welding operation of the entire weld, the device will immediately trigger an alarm feedback mechanism.

[0048] The specific process of producing H-beam using the above intelligent production line is as follows:

[0049] 1. The MES management system 100 generates production tasks according to the processing plan and gives the tasks to the central control system 200 of each center. The central control system 200 of each center dispatches the tasks to the subordinate equipment and monitors and controls in real time.

[0050] 2. According to the established production tasks, the program-controlled crane accurately lifts the web and wing plates from the storage location and transports them to the roller table of the grinding and chamfering station.

[0051] 3. For the steel plates on the roller, confirm their material information by scanning the code, and then execute the automatic centering process. Next, the system will detect the length and width of the incoming material. After confirmation, the steel plate will be automatically transported to the grinding and chamfering workstation. In this process, the relevant program will be automatically called out, and the mechanism will also be automatically adjusted to ensure that the four edges of the steel plate are chamfered and the welding area is ground; after the steel plate is ground, it is transported to the next station through the conveyor roller. More specifically, the powered roller conveys the workpiece forward, and the centering device and the stop device adjust the position of the workpiece in the width and length direction of the conveyor line to complete the workpiece positioning; the code reader recognizes the QR code on the workpiece, and the laser rangefinder measures the length and width of the workpiece. The workpiece detection data is compared with the scanned code data to determine whether the incoming workpiece is correct and whether it can enter the grinding station.

[0052] 4. At the station where arc-starting plates and arc-extinguishing plates are automatically added online, the steel plate is conveyed here, and then arc-starting plates and arc-extinguishing plates are automatically installed at both ends and fixed by spot welding.

[0053] 5. After the arc-starting plate and the arc-extinguishing plate are added, the vertical welding and straightening machine will scan the QR code information of the web and the wing plate, and compare and confirm it with the processing instructions issued by the MES management system 100. After confirmation, the web and the two side wing plates are assembled, welded and straightened in sequence. As a preferred technical solution, the wing plate and the web located in the T-type welding and straightening area will first be T-assembled and fixed. After the T-type assembly and fixation is completed, the T-shaped steel is transmitted forward via a powered roller. The vertical welding and straightening machine performs welding operations according to the process parameter information in the welding database, and simultaneously implements heat straightening treatment during this process. The T-shaped steel that has completed welding and straightening will be transported to the location of the flip mechanism, and in this process, the T-shaped steel will be flipped 90°, and then transferred to the H-shaped steel welding and straightening area, and assembled, welded and straightened with the other side wing plate (refer to step 6 for the specific process).

[0054] 6. The assembled, welded and corrected H-shaped steel is transported to the finished welding product buffer area by a crane for flaw detection.

[0055] From the above production line architecture and steel production process, it can be seen that the present invention realizes the interconnection between the production line equipment and the MES management system, and completes the loading, grinding, chamfering, assembly, welding, and straightening processing, opens up the data chain of each process of intelligent production, and realizes the intelligent production of H-shaped steel.

[0056] In summary, the present invention provides a fully automatic intelligent vertical welding steel production line and a steel production method. The production line includes an MES management system, a central control system, an intelligent transfer center, and an intelligent welding center; the central control system receives production task information from the MES management system, and then distributes these production tasks to the production equipment, while collecting data from the production line and transmitting it back to the MES management system; the intelligent transfer center relies on the intelligent program-controlled driving system to receive production logistics information from the central control system, identify specific material information in the steel plate storage area, and hoist the steel plates in the storage area to the grinding and chamfering station; the intelligent welding center includes online grinding and chamfering equipment, online arc-starting / extinguishing plate device, online accompanying preheating device, intelligent assembly welding and correction equipment, welding slag cleaning and collection device, and intelligent detection device for welding wire and flux.

[0057] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A fully automatic intelligent vertical welding steel production line, characterized by: include: MES management system, which handles the execution of production plans and data management of the production process; The central control system receives the production task information from the MES management system, and then distributes these production tasks to the production equipment, monitors the operation status of the production line in real time, collects the data of the production line, and transmits the real-time acquired data information back to the MES management system; The intelligent transfer center, relying on the intelligent program-controlled driving system, receives the production logistics information from the central control system, and automatically identifies the specific material information of the H-shaped steel flange and web in the steel plate storage area, and then hoists the steel plates in the storage area to the grinding and chamfering station of the flange and web; Intelligent welding center, including online grinding and chamfering equipment, online arc-starting / extinguishing plate adding device, online accompanying preheating device, intelligent welding and rectification equipment, welding slag cleaning and collection device and intelligent detection device for welding wire and flux; The MES management system converts production plans and work orders into production tasks and tracks production progress in real time; The production data is collected and analyzed in real time to identify bottlenecks and quality problems in production and provide suggestions for improvement; the online grinding and chamfering equipment, the online adding arc striking / extinguishing plate device and the intelligent welding and straightening equipment are connected in sequence through an automatic conveying roller.

2. The fully automatic intelligent vertical welding steel production line according to claim 1 is characterized in that: The intelligent welding center includes three grinding areas: the lower wing plate grinding area, the upper wing plate grinding area and the web plate grinding area; each grinding area is equipped with special equipment for grinding and chamfering the wing plate and the web plate, and the special equipment integrates automatic conveying rollers and grinding and chamfering equipment.

3. The fully automatic intelligent vertical welding steel production line according to claim 1 is characterized in that: The web and wing plates of the H-shaped steel are conveyed to the designated workstation of the online arc-starting / extinguishing plate adding device via an automatic conveying roller; the online arc-starting / extinguishing plate adding device automatically adds arc-starting plates and arc-extinguishing plates to both ends of the web and wing plates, and fixes them by spot welding through a welding robot.

4. The fully automatic intelligent vertical welding steel production line according to claim 1 is characterized in that: For H-beams made of high-strength steel plates, H-beams with thicker wing plates, or welding operations at lower ambient temperatures, the online preheating device uses medium-frequency induction heating technology to automatically heat the weld area before welding and monitor the temperature status in real time to ensure that it meets the established process requirements.

5. The fully automatic intelligent vertical welding steel production line according to claim 1 is characterized in that: The intelligent assembly welding and straightening equipment includes a T-type assembly welding and straightening area and an H-type assembly welding and straightening area, both of which are equipped with a vertical assembly welding and straightening machine; in the T-type assembly welding and straightening area, the vertical assembly welding and straightening machine is used to perform T-type assembly and fixing operations on the web and one side wing plate; the vertical assembly welding and straightening machine automatically matches and calls the corresponding welding process parameters in the welding database, thereby completing the welding process of the web and one side wing plate, and automatically corrects during welding; after the T-shaped steel is rotated 90° by the turning frame, it is transmitted to the H-type assembly welding and straightening area to be assembled, welded and corrected with the other side wing plate.

6. The fully automatic intelligent vertical welding steel production line according to claim 1 is characterized in that: When the intelligent detection device for welding wire and flux detects that the remaining amount of welding wire or flux is insufficient to complete the welding operation of the entire weld, an alarm feedback mechanism is immediately triggered.

7. A method for producing section steel, characterized in that: The operation is performed using the fully automatic intelligent vertical welded steel production line as described in any one of claims 1 to 6, comprising the following steps: Step S1: The MES management system generates production tasks according to the processing plan and sends the tasks to the central control system of each center. The central control system of each center dispatches the tasks to the subordinate equipment and monitors and controls them in real time; Step S2, the program-controlled crane hoists the web and wing plates in the storage location according to the established production task, and transports them to the automatic conveying roller of the grinding and chamfering station; Step S3: for the steel plate on the automatic conveyor roller, confirm its material information by scanning the code, and then execute the automatic centering process; then, detect the length and width of the incoming material, and after confirmation, the steel plate will be automatically conveyed to the grinding and chamfering workstation, chamfer the four edges of the steel plate, and grind its welding area; after the grinding of the steel plate is completed, it will be conveyed to the next station through the conveyor roller; Step S4, at the station for automatically adding arc-starting plates and arc-extinguishing plates online, the steel plate is conveyed here, and then the arc-starting plates and arc-extinguishing plates are automatically added at both ends and fixed by spot welding; Step S5: After the arc-starting plate and the arc-extinguishing plate are added, the intelligent assembly welding and correction equipment scans the QR code information of the web and the wing plate, and compares and confirms it with the processing instructions issued by the MES management system; after confirmation, the web and the two side wing plates are assembled, welded and corrected in turn; Step S6: The assembled, welded and corrected H-beam is transported to the finished welding product buffer area by a program-controlled crane for flaw detection.

8. The method for producing section steel according to claim 7, characterized in that: In step S5, the intelligent assembly welding and straightening equipment includes a T-type assembly welding and straightening area and an H-type assembly welding and straightening area, both of which are equipped with a vertical assembly welding and straightening machine; in the T-type assembly welding and straightening area, the vertical assembly welding and straightening machine is used to perform T-type assembly and fixing operations on the web and one side wing plate; the vertical assembly welding and straightening machine automatically matches and calls the corresponding welding process parameters in the welding database, thereby completing the welding process of the web and one side wing plate, and automatically corrects during welding; after the T-shaped steel is rotated 90° by the turning frame, it is transmitted to the H-type assembly welding and straightening area to be assembled, welded and corrected with the other side wing plate.

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