Steel beam purline plate welding device

Abstract

The invention relates to the technical field of steel beam welding, and discloses a steel beam purline plate welding device which comprises a welding frame body, a control operation panel is fixed to the upper surface of the welding frame body, a control box is fixed to the interior of the welding frame body, and a wire feeder rack is fixed to the upper surface of the welding frame body; a welding rack is fixed to the upper surface of the welding frame body, a transverse positioning and adjusting device assembly is fixed to the outer side of the welding frame body, and a longitudinal positioning and adjusting device assembly is fixed to the upper surface of the welding frame body. The welding rack comprises a second rack cross beam, a mounting plate is fixed to the outer side of the second rack cross beam, and a protective cover is fixed to the outer side of the second rack cross beam. Through the cooperation of the welding gun assembly, the longitudinal adjusting sliding table assembly and the transverse adjusting sliding table assembly in the welding rack, the function of carrying out multi-dimensional and fine adjustment on the angle and position of a welding gun is achieved, and it is ensured that a reasonable included angle and distance are always kept between a welding wire and a welding seam.

Description

Technical Field

[0001] The present invention relates to the technical field of steel beam welding, and specifically to a welding device for steel beam purlin plates. Background Art

[0002] In modern steel structure buildings, purlin plates, as important components connecting steel beams and roof systems, their installation accuracy and welding quality directly affect the overall structural stability and service life. Purlin plates usually exist in the form of thin-walled steel plates and need to be connected to main components such as steel beams by welding to ensure the continuity of joint stiffness and force transmission paths. In actual construction, the welding of purlin plates seems simple, but in fact, it has extremely high requirements for welding processes, weld accuracy, and component positioning. Any carelessness may lead to potential structural safety hazards.

[0003] The welding of steel beam purlin plates mainly relies on manual operation. First of all, it is extremely difficult to control the heat input during thin plate welding. Heat deformation is easily generated during welding, resulting in local warping or wavy distortion of the purlin. Secondly, limited by the manual control of the welding torch posture and path by workers, the weld consistency is generally poor, and defects such as undercut and lack of fusion are extremely likely to occur in local areas. Repeated grinding and repair welding have to be carried out later, which is both time-consuming and costly. In addition, during the manual welding process, the phenomenon of grain coarsening in the heat-affected zone of the base material also occurs from time to time, reducing the material toughness. Such hidden defects are usually difficult to detect in the initial stage of use, but they lay hidden dangers for later cracking.

[0004] The production rhythm of manual welding completely depends on the proficiency of welders, and the efficiency is uneven. It may take more than ten minutes to proficiently complete a weld. When encountering complex joints, the welding torch angle needs to be adjusted repeatedly or even re-clamped. Most projects have clear requirements for compressing the construction period, resulting in enterprises often having to invest a large amount of human resources intensively to catch up with the progress. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a welding device for steel beam purlin plates, which solves the problems of poor welding consistency, unstable weld appearance and mechanical properties in traditional manual welding.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A welding device for steel beam purlin plates, comprising: a welding frame body, on the upper surface of which a control operation panel is fixed, inside which a control box is fixed, on the upper surface of which a wire feeder frame is fixed, on the upper surface of which a welding machine frame is fixed, on the outside of which a transverse positioning adjustment device assembly is fixed, and on the upper surface of which a longitudinal positioning adjustment device assembly is fixed; The welding machine frame includes a second frame cross beam, on the outside of which a mounting plate is fixed, on the outside of which a protective cover is fixed, on one side of which a longitudinal adjustment slide assembly is provided, on the outside of which a transverse adjustment slide assembly is provided, on the outer wall of which a welding torch support plate is fixed, on the outer wall of which a welding torch assembly is installed, below the second frame cross beam a frame column is fixed, on the outer wall of which a column protective plate is fixed by bolts, and below the frame column a frame fixing seat is provided.

[0007] Preferably, a guide rail slider is provided below the frame fixing seat, a servo motor assembly is provided on the outside of the guide rail slider, the output end of the servo motor assembly is fixed with a gear, a limit sensing assembly is provided on the outside of the guide rail slider, a first protective plate is provided below the frame fixing seat, the first protective plate is fixed on the upper surface of the welding frame body, and a guide rail main body is fixed inside the first protective plate, and the inner wall of the guide rail slider slides on the outer wall of the guide rail main body.

[0008] Preferably, a drag chain fixing plate is fixed on the outer wall of the servo motor assembly, a drag chain fixing bolt passes through the inner wall of the drag chain fixing plate, a drag chain main body is provided below the drag chain fixing plate, and the outer wall of the drag chain fixing bolt is threadedly connected inside the drag chain main body.

[0009] Preferably, a rack is fixed on the inner wall of the first protective plate, the rack meshes with the gear, a limit block is fixed at the end of the first protective plate, and a stop block is fixed on the outer wall of the limit block.

[0010] Preferably, the control operation panel includes a fixed base, a support rod is fixed on the upper surface of the fixed base, a control panel box body is fixed at the top of the support rod, a touch screen is fixed on the outside of the control panel box body, and a plurality of buttons are fixed on the outside of the control panel box body.

[0011] Preferably, the control box includes a housing, the outer wall of which is fixed inside the welding frame body, the outer wall of which is hinged with a storage door, and the outside of the storage door is hinged with an electric control door.

[0012] Preferably, the welding frame body includes a frame body panel, a plurality of frame body table legs are fixed to the lower surface of the frame body panel, frame body long cross beams are fixed to both the lower surface of the frame body panel and the outer wall of the frame body table legs, frame body short cross beams are fixed to both the lower surface of the frame body panel and the outer wall of the frame body table legs, a welding machine fixing channel steel is fixed to the outer wall of the frame body long cross beam, a control cabinet support plate is fixed to the lower surface of the welding machine fixing channel steel, the upper surface of the control cabinet support plate is fixed to the lower surface of the control box, and the outer wall of the control cabinet support plate is fixed to the outer wall of the frame body long cross beam.

[0013] Preferably, the wire feeder frame includes a frame side plate, a frame fixing bolt is threadedly connected to the bottom end of the frame side plate, the outer wall of the frame fixing bolt passes through the inside of the welding frame body, a frame cross beam one is fixed to the outer wall of the frame side plate, a frame support plate is fixed to the upper surface of the frame cross beam one, and a welding machine assembly is fixed to the outer wall of the frame support plate.

[0014] Preferably, the transverse positioning adjustment device assembly includes an adjustment plate, the outer wall of the adjustment plate is fixed to the outer wall of the welding frame body by bolts, an adjustment positioning plate is fixed to the outer wall of the adjustment plate, an adjustment slider is arranged on the outer wall of the adjustment plate, a slider fixing bolt passes through the inner wall of the adjustment slider, the outer wall of the slider fixing bolt is threadedly connected to the inside of the adjustment plate, a slider optical axis is fixed to the inside of the adjustment slider, a optical axis support seat is fixed to the driving end of the slider optical axis, the outer wall of the optical axis support seat is fixed to the outer wall of the frame body short cross beam, and an adjustment handle assembly is arranged on the lower surface of the slider optical axis.

[0015] Preferably, the longitudinal positioning adjustment device assembly includes an adjustment vertical plate, a permanent magnet is fixed to the lower surface of the adjustment vertical plate, the outer wall of the permanent magnet is arranged on the upper surface of the frame body panel, a plurality of support plate bodies are fixed to the outer wall of the permanent magnet by bolts, and a plurality of fixing bolts one pass through the bottom end of the support plate body, and the outer wall of the fixing bolt one passes through the inside of the frame body panel.

[0016] The present invention provides a steel beam purlin plate welding device. It has the following beneficial effects:

[0017] 1. Through the cooperation among the welding torch assembly, the longitudinal adjustment slide table assembly and the transverse adjustment slide table assembly in the welding frame of the present invention, the functions of multi-dimensional and refined adjustment of the welding torch angle and position are achieved, ensuring that a reasonable included angle and distance are always maintained between the welding wire and the welding joint, solving the problems of poor welding consistency, unstable weld appearance and mechanical properties in traditional manual welding, and significantly improving the welding quality.

[0018] 2. By controlling the cooperation between the touch screen and buttons on the operation panel and the electric control system in the control box, the present invention achieves the effects of centralized setting and intelligent control of parameters such as welding current, voltage, and speed. The operation is convenient and intuitive, avoiding human errors, solving the problems in traditional welding that parameter adjustment depends on manual labor, with low efficiency and poor stability, and realizing the automation and intelligence of the welding process.

[0019] 3. Through the cooperation of the adjusting vertical plate, support plate, and permanent magnetic block in the longitudinal positioning adjustment device assembly, the present invention achieves the function of quickly fixing and accurately positioning the purlin plate, completing stable clamping without damaging the surface of the workpiece, solving the problems in traditional jigs such as cumbersome installation, large positioning errors, and low manual placement efficiency, and effectively improving the clamping efficiency and the standardization degree of pre-welding preparation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the present invention;

[0021] Figure 2 is a schematic structural diagram of the control panel box body part of the present invention;

[0022] Figure 3 is a schematic structural diagram of the housing part of the present invention;

[0023] Figure 4 is a schematic structural diagram of the frame panel part of the present invention;

[0024] Figure 5 is a schematic structural diagram of the frame side plate part of the present invention;

[0025] Figure 6 is a schematic structural diagram of the frame crossbeam part of the present invention;

[0026] Figure 7 is a schematic structural diagram of the shield part of the present invention;

[0027] Figure 8 is a schematic structural diagram of the adjusting vertical plate part of the present invention;

[0028] Figure 9 is a schematic structural diagram of the adjusting plate part of the present invention.

[0029] Among them, 100 is the control operation panel; 101 is the control panel box body; 102 is the touch screen; 103 is the button; 104 is the support rod; 105 is the fixed base; 200 is the control box; 201 is the housing; 202 is the storage door; 203 is the electric control door; 300 is the welding frame body; 301 is the frame panel; 302 is the frame table leg; 303 is the long cross beam of the frame; 304 is the short cross beam of the frame; 305 is the welding machine fixing channel steel; 306 is the control cabinet support plate; 400 is the wire feeder frame; 401 is the side plate of the frame; 402 is the first cross beam of the frame; 403 is the support plate of the frame; 404 is the fixing bolt of the frame; 405 is the welding machine assembly; 500 is the welding frame; 501 is the second cross beam of the frame; 502 is the mounting plate; 503 is the protective cover; 504 is the longitudinal adjustment slide assembly; 505 is the transverse adjustment slide assembly; 506 is the welding torch support plate; 507 is the welding torch assembly; 508 is the column protection plate; 509 is the frame column; 510 is the frame fixing seat; 511 is the guide rail slider; 512 is the servo motor assembly; 513 is the gear; 514 is the limit sensing assembly; 515 is the drag chain fixing plate; 516 is the drag chain fixing bolt; 517 is the drag chain body; 518 is the first protection plate; 519 is the guide rail body; 520 is the rack; 521 is the limit block; 522 is the stop block; 600 is the transverse positioning adjustment device assembly; 601 is the adjustment plate; 602 is the adjustment positioning plate; 603 is the adjustment slider; 604 is the slider fixing bolt; 605 is the slider optical axis; 606 is the optical axis support seat; 607 is the adjustment handle; 700 is the longitudinal positioning adjustment device assembly; 701 is the adjustment vertical plate; 702 is the main body of the support plate; 703 is the first fixing bolt; 704 is the permanent magnetic block. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to the attached Figure 1 - attached Figure 5, an embodiment of the present invention provides a welding device for steel beam purlin plates, including: a welding frame body 300, a control operation panel 100 is fixed on the upper surface of the welding frame body 300, a control box 200 is fixed inside the welding frame body 300, a wire feeder frame 400 is fixed on the upper surface of the welding frame body 300, a welding machine frame 500 is fixed on the upper surface of the welding frame body 300, a transverse positioning adjustment device assembly 600 is fixed on the outside of the welding frame body 300, and a longitudinal positioning adjustment device assembly 700 is fixed on the upper surface of the welding frame body 300; The welding machine frame 500 includes a second frame cross beam 501, a mounting plate 502 is fixed on the outside of the second frame cross beam 501, a shield 503 is fixed on the outside of the second frame cross beam 501, a longitudinal adjustment slide assembly 504 is arranged on one side of the shield 503, a transverse adjustment slide assembly 505 is arranged on the outside of the shield 503, a welding torch support plate 506 is fixed on the outer wall of the transverse adjustment slide assembly 505, a welding torch assembly 507 is installed on the outer wall of the welding torch support plate 506, a frame column 509 is fixed below the second frame cross beam 501, a column shield 508 is fixed on the outer wall of the frame column 509 by bolts, a frame fixing seat 510 is arranged below the frame column 509, a guide rail slider 511 is arranged below the frame fixing seat 510, a servo motor assembly 512 is arranged on the outside of the guide rail slider 511, a gear 513 is fixed on the output end of the servo motor assembly 512, a limit sensing assembly 514 is arranged on the outside of the guide rail slider 511, a first shield 518 is arranged below the frame fixing seat 510, the first shield 518 is fixed on the upper surface of the welding frame body 300, a guide rail main body 519 is fixed inside the first shield 518, the inner wall of the guide rail slider 511 slides on the outer wall of the guide rail main body 519, a drag chain fixing plate 515 is fixed on the outer wall of the servo motor assembly 512, a drag chain fixing bolt 516 passes through the inner wall of the drag chain fixing plate 515, a drag chain main body 517 is arranged below the drag chain fixing plate 515, the outer wall of the drag chain fixing bolt 516 is threadedly connected inside the drag chain main body 517, a rack 520 is fixed on the inner wall of the first shield 518, the rack 520 meshes with the gear 513, a limit block 521 is fixed at the end of the first shield 518, and a stop block 522 is fixed on the outer wall of the limit block 521.

[0032] Specifically, the servo motor assembly 512 drives the gear 513 to mesh with the rack 520 arranged inside the first guard plate 518, achieving high-precision linear movement of the welding frame 500. The guide rail slider 511 slides smoothly on the guide rail body 519, ensuring the smoothness and continuity of the welding process. The welding torch assembly 507 is installed on the welding torch support plate 506. Through the cooperation of the horizontal adjustment slide table assembly 505 and the vertical adjustment slide table assembly 504, multi-dimensional flexible changes in the angle and position of the welding torch during the welding process are realized, enabling the welding wire to always maintain the optimal welding angle and distance, improving the forming quality and structural strength of the welded joint. The entire device consists of a control operation panel 100 and a control box 200 to jointly form a control system. The operator can precisely set and intelligently adjust the welding parameters through the touch screen 102 and the button 103, avoiding errors and inconsistencies in the traditional manual adjustment process. During the welding process, the drag chain body 517 cooperates with the drag chain fixing plate 515 and the drag chain fixing bolt 516 to orderly manage and control the cables, reducing cable bending and interference. The limit sensing assembly 514 works together with the limit block 521 and the stop block 522 to realize the automatic start-stop control and end limit protection function of the device, avoiding equipment damage caused by the over-limitation of the welding frame 500. This device has a compact structure, high integration, and high automation level. Through an accurate servo control system and a modular slide table adjustment mechanism, efficient and stable control of the welding path and process parameters is achieved. The welding quality and efficiency are significantly better than traditional manual welding, greatly reducing labor costs and quality fluctuations, and improving product consistency and reliability.

[0033] Please refer to the attached Figure 4 - attached Figure 9, the control operation panel 100 includes a fixed base 105. A support rod 104 is fixed on the upper surface of the fixed base 105. The top end of the support rod 104 is fixed with a control panel box body 101. A touch screen 102 is fixed on the outside of the control panel box body 101. A plurality of buttons 103 are fixed on the outside of the control panel box body 101. The control box 200 includes a housing 201. The outer wall of the housing 201 is fixed inside the welding frame body 300. A storage door 202 is hinge-connected to the outer wall of the housing 201. An electric control door 203 is hinge-connected to the outside of the storage door 202. The welding frame body 300 includes a frame panel 301. A plurality of frame table legs 302 are fixed on the lower surface of the frame panel 301. Frame long cross beams 303 are fixed on both the lower surface of the frame panel 301 and the outer wall of the frame table legs 302. Frame short cross beams 304 are fixed on both the lower surface of the frame panel 301 and the outer wall of the frame table legs 302. A welding machine fixed channel steel 305 is welded on the outer wall of the frame long cross beam 303. A control cabinet support plate 306 is fixed on the lower surface of the welding machine fixed channel steel 305. The upper surface of the control cabinet support plate 306 is fixed on the lower surface of the control box 200. The outer wall of the control cabinet support plate 306 is fixed on the outer wall of the frame long cross beam 303. The wire feeder frame 400 includes a frame side plate 401. A frame fixing bolt 404 is threadedly connected to the bottom end of the frame side plate 401. The outer wall of the frame fixing bolt 404 passes through the inside of the welding frame body 300. A frame cross beam one 402 is fixed on the outer wall of the frame side plate 401. A frame support plate 403 is fixed on the upper surface of the frame cross beam one 402. A welding machine assembly 405 is fixed on the outer wall of the frame support plate 403. The transverse positioning adjustment device assembly 600 includes an adjustment plate 601. The outer wall of the adjustment plate 601 is fixed to the outer wall of the welding frame body 300 by bolts. An adjustment positioning plate 602 is fixed on the outer wall of the adjustment plate 601. An adjustment slider 603 is arranged on the outer wall of the adjustment plate 601. A slider fixing bolt 604 passes through the inner wall of the adjustment slider 603. The outer wall of the slider fixing bolt 604 is threadedly connected inside the adjustment plate 601. A slider optical axis 605 is fixed inside the adjustment slider 603. The driving end of the slider optical axis 605 is fixed with an optical axis support seat 606. The outer wall of the optical axis support seat 606 is fixed on the outer wall of the frame short cross beam 304. An adjustment handle assembly 607 is arranged on the lower surface of the slider optical axis 605. The longitudinal positioning adjustment device assembly 700 includes an adjustment vertical plate 701. A permanent magnetic block 704 is fixed on the lower surface of the adjustment vertical plate 701. The outer wall of the permanent magnetic block 704 is arranged on the upper surface of the frame panel 301. A plurality of support plate bodies 702 are fixed to the outer wall of the permanent magnetic block 704 by bolts. A plurality of fixing bolts one 703 pass through the bottom end of the support plate bodies 702. The outer wall of the fixing bolts one 703 passes through the inside of the frame panel 301.

[0034] Specifically, the control operation panel 100 serves as the human-machine interaction interface between the operator and the device. The control panel box body 101 is stably supported at a reasonable operation height through the fixed base 105 and the support rod 104. The operator can set parameters and monitor the status through the touch screen 102, and cooperate with multiple buttons 103 to achieve function switching and quick operation, simplifying the operation process and improving the response efficiency. The control signal is processed by the internal electronic control system of the housing 201 in the control box 200. The storage door 202 and the electric control door 203 are provided for easy maintenance and daily management, and at the same time have a certain degree of protection performance, effectively preventing external dust, water vapor, etc. from interfering with electrical components and ensuring the stable operation of the device. The welding frame body 300 forms an integral support platform through the frame body panel 301 and multiple frame body table legs 302, with good load-bearing capacity and structural rigidity. The long frame cross beam 303 and the short frame cross beam 304 together form a rigid frame to support the entire system to withstand dynamic load impacts during the welding process. The welding machine fixing channel steel 305 and the control cabinet support plate 306 are used for the precise bearing of the control box 200 and the wire feeding mechanism, improving the structural stability of the device operation. In the wire feeder frame 400, components such as the frame side plate 401, the first frame cross beam 402, and the frame support plate 403 firmly support the welding machine assembly 405, and achieve a high-strength connection with the main frame body structure through the frame fixing bolts 404, avoiding deviation caused by vibration during the welding process. The transverse positioning adjustment device assembly 600 is linked through the adjustment plate 601 and the adjustment slider 603. Under the guidance and support of the slider optical axis 605 and the optical axis support seat 606, the transverse fine adjustment and precise alignment of the adjustment positioning plate 602 are realized. The operator can achieve quick manual adjustment through the adjustment handle 607, and the slider fixing bolt 604 locks the position of the slider, improving the clamping accuracy and operation convenience. The longitudinal positioning adjustment device assembly 700 forms a stable vertical clamping surface through the adjustment vertical plate 701 and multiple support plate bodies 702. The permanent magnet 704 adsorbs and fixes the workpiece in a non-contact manner under the action of the first fixing bolt 703, not only improving the installation efficiency of the workpiece, but also effectively avoiding surface indentation and damage caused by the fixture, especially suitable for steel components with high surface quality requirements. At the same time, this structure improves the consistency and accuracy of the clamping repeated positioning, providing a reliable positioning basis for the subsequent welding process. The various system structures of the invention cooperate with each other, with high integration, high reliability, and high operability.

[0035] Working principle: When the device starts up, welding parameters including current, voltage, and welding speed are set through the operation panel 100. The operator performs input operations on the electric control system in the control box 200 through the touch screen 102 and buttons 103. The electric control system is located inside the housing 201 and is maintained and repaired through the storage door 202 and the electric control door 203. After the settings are completed, the welding machine assembly 405 starts to operate. It is fixed on the welding frame 300 through the frame side plate 401, the first frame cross beam 402, the frame support plate 403, and the frame fixing bolts 404 in the wire feeder frame 400 and is linked with the welding machine frame 500. The welding frame 300 is integrally composed of the frame panel 301, the frame table legs 302, the long frame cross beam 303, the short frame cross beam 304, the welding machine fixing channel steel 305, and the control cabinet support plate 306 to form a stable working platform. At the same time, the purlin plate to be welded is first placed at the adjustment positioning plate 602 in the transverse positioning adjustment device assembly 600. After tightening with the adjustment handle assembly 607, preliminary transverse positioning is achieved. The adjustment slider 603 moves along the guide of the adjustment plate 601 under the cooperation of the slider optical axis 605 and the optical axis support seat 606 and is fixed by the slider fixing bolt 604 to complete transverse clamping and positioning. In the longitudinal positioning adjustment device assembly 700, the adjustment vertical plate 701 cooperates with the permanent magnet 704 to adsorb and fix the purlin support plate, and it is firmly fixed on the frame panel 301 through the support plate main body 702 and the first fixing bolt 703 to complete longitudinal positioning and ensure that the purlin plate is placed vertically and centered. Then, the position and angle of the welding torch assembly 507 are finely adjusted through the longitudinal adjustment slide table assembly 504 and the transverse adjustment slide table assembly 505. The welding torch is carried by the welding torch support plate 506 and fixed on the slide table to ensure that a proper angle is formed between the welding torch wire and the welding flange and web. At the same time, the welding area is mechanically protected by the mounting plate 502 and the shield 503. The entire welding machine frame 500 establishes a frame structure with the help of the second frame cross beam 501 and the frame column 509, is connected to the welding frame 300 by the frame fixing seat 510, and moves through the guide rail main body 519 below the guard plate 518. The guide rail slider 511 slides forward on the guide rail main body 519. The slider is driven by the servo motor assembly 512, and the output end of the motor drives the gear 513 to rotate. The gear 513 meshes with the rack 520 to achieve precise displacement control. The drag chain main body 517 realizes the dynamic management of cables and signal cables through the drag chain fixing plate 515 and the drag chain fixing bolt 516 to avoid entanglement and wear. The limit sensing assembly 514 cooperates with the limit block 521 and the stop block 522 to sense the position of the welding machine frame 500 at the end of welding and trigger the automatic return function. After welding is completed, the welding machine frame 500 resets to the starting position. The whole set of systems has a high degree of automation, significantly improves the welding efficiency and quality, and reduces manual operation and errors.

[0036] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel beam purlin plate welding device, characterized in that: include: A welding frame (300), wherein a control operation panel (100) is fixed on the upper surface of the welding frame (300), a control box (200) is fixed inside the welding frame (300), a wire feeder frame (400) is fixed on the upper surface of the welding frame (300), a welding frame (500) is fixed on the upper surface of the welding frame (300), a lateral positioning adjustment device assembly (600) is fixed on the outer side of the welding frame (300), and a longitudinal positioning adjustment device assembly (700) is fixed on the upper surface of the welding frame (300); The welding frame (500) comprises a frame cross beam (501), a mounting plate (502) is fixed to the outer side of the frame cross beam (501), a shield (503) is fixed to the outer side of the frame cross beam (501), a longitudinal adjustment slide assembly (504) is arranged on one side of the shield (503), a transverse adjustment slide assembly (505) is arranged on the outer side of the shield (503), a welding gun support plate (506) is fixed to the outer wall of the transverse adjustment slide assembly (505), a welding gun assembly (507) is installed on the outer wall of the welding gun support plate (506), a frame column (509) is fixed below the frame cross beam (501), a column guard plate (508) is fixed to the outer wall of the frame column (509) by bolts, and a frame fixing seat (510) is arranged below the frame column (509).

2. A steel beam purlin plate welding device according to claim 1, characterized in that: A guide rail slider (511) is arranged below the frame fixing seat (510), a servo motor assembly (512) is arranged on the outer side of the guide rail slider (511), a gear (513) is fixed to the output end of the servo motor assembly (512), a limit position sensor assembly (514) is arranged on the outer side of the guide rail slider (511), a guard plate (518) is arranged below the frame fixing seat (510), the guard plate (518) is fixed on the upper surface of the welding frame (300), a guide rail body (519) is fixed inside the guard plate (518), and the inner wall of the guide rail slider (511) slides on the outer wall of the guide rail body (519).

3. A steel beam purlin plate welding device according to claim 2, characterized in that: A drag chain fixing plate (515) is fixed to the outer wall of the servo motor assembly (512), a drag chain fixing bolt (516) is passed through the inner wall of the drag chain fixing plate (515), a drag chain body (517) is arranged below the drag chain fixing plate (515), and the outer wall of the drag chain fixing bolt (516) is threadedly connected to the inside of the drag chain body (517).

4. A steel beam purlin plate welding device according to claim 2, characterized in that: A rack (520) is fixed to the inner wall of the guard plate 1 (518), and the rack (520) is meshed with the gear (513). A limit block (521) is fixed to the end of the guard plate 1 (518), and a stop block (522) is fixed to the outer wall of the limit block (521).

5. The steel beam purlin plate welding device according to claim 1, characterized in that: The control operation panel (100) comprises a fixed base (105), a support rod (104) is fixed to the upper surface of the fixed base (105), a control panel box (101) is fixed to the top end of the support rod (104), a touch screen (102) is fixed to the outer side of the control panel box (101), and a plurality of buttons (103) are fixed to the outer side of the control panel box (101).

6. A steel beam purlin plate welding device according to claim 1, characterized in that: The control box (200) comprises a shell (201), the outer wall of the shell (201) is fixed to the inner side of the welding frame (300), the outer wall of the shell (201) is hingedly connected to a storage door (202), and the outer side of the storage door (202) is hingedly connected to an electric control door (203).

7. A steel beam purlin plate welding device according to claim 1, characterized in that: The welding frame (300) comprises a frame panel (301), a plurality of frame legs (302) are fixed to the lower surface of the frame panel (301), a long frame beam (303) is fixed to the lower surface of the frame panel (301) and the outer wall of the frame legs (302), a short frame beam (304) is fixed to the lower surface of the frame panel (301) and the outer wall of the frame legs (302), a welding machine fixing channel steel (305) is fixed to the outer wall of the long frame beam (303), a control cabinet support plate (306) is fixed to the lower surface of the welding machine fixing channel steel (305), the upper surface of the control cabinet support plate (306) is fixed to the lower surface of the control box (200), and the outer wall of the control cabinet support plate (306) is fixed to the outer wall of the long frame beam (303).

8. A steel beam purlin plate welding device according to claim 1, characterized in that: The wire feeder frame (400) comprises a frame side plate (401), the bottom end of the frame side plate (401) is threadedly connected with a frame fixing bolt (404), the outer wall of the frame fixing bolt (404) is penetrated into the interior of the welding frame (300), the outer wall of the frame side plate (401) is fixed with a frame cross beam 1 (402), the upper surface of the frame cross beam 1 (402) is fixed with a frame support plate (403), and the outer wall of the frame support plate (403) is fixed with a welding machine assembly (405).

9. A steel beam purlin plate welding device according to claim 1, characterized in that: The lateral positioning adjustment device assembly (600) comprises an adjustment plate (601), the outer wall of which is fixed to the outer wall of the welding frame (300) by bolts, the outer wall of which is fixed with an adjustment positioning plate (602), the outer wall of which is provided with an adjustment slider (603), the inner wall of which is penetrated with a slider fixing bolt (604), the outer wall of which is threadedly connected to the inside of the adjustment plate (601), the inside of which is fixed with a slider optical axis (605), the driving end of which is fixed with an optical axis support seat (606), the outer wall of which is fixed to the outer wall of the frame short crossbeam (304), the lower surface of which is provided with an adjustment handle assembly (607).

10. A steel beam purlin plate welding device according to claim 1, characterized in that: The longitudinal positioning adjustment device assembly (700) includes an adjustment vertical plate (701), a permanent magnet block (704) is fixed to the lower surface of the adjustment vertical plate (701), the outer wall of the permanent magnet block (704) is arranged on the upper surface of the frame panel (301), and the outer wall of the permanent magnet block (704) is fixed with a plurality of support plate bodies (702) by bolts, and a plurality of fixing bolts (703) are penetrated at the bottom end of the support plate body (702), and the outer wall of the fixing bolt (703) is penetrated inside the frame panel (301).

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