Steel beam purlin plate welding device

Abstract

The utility model relates to steel beam welding technical field discloses a kind of steel beam purlin plate welding devices, comprising: welding frame body, the upper surface of the welding frame body is fixed with control operation panel, the inside of the welding frame body is fixed with control box, the upper surface of the welding frame body is fixed with wire feeder rack, the upper surface of the welding frame body is fixed with welding frame, the outside of the welding frame body is fixed with transverse positioning adjusting device assembly, the upper surface of the welding frame body is fixed with longitudinal positioning adjusting device assembly;The welding frame includes rack crossbeam two, the outside of the rack crossbeam two is fixed with mounting plate, the outside of the rack crossbeam two is fixed with shroud.In the utility model, by the cooperation between welding gun assembly in welding frame, longitudinal adjusting sliding platform assembly and transverse adjusting sliding platform assembly, the function of multidimensional, fine adjustment to welding gun angle and position is reached, ensure that welding wire and welding seam always keep reasonable included angle and distance.

Description

Technical Field

[0001] This utility model relates to the field of steel beam welding technology, and in particular to a steel beam purlin plate welding device. Background Technology

[0002] In modern steel structure buildings, purlins are crucial components connecting steel beams and the roof system. Their installation accuracy and welding quality directly impact the overall structural stability and service life. Purlins are typically thin-walled steel plates that must be welded to main components such as steel beams to ensure joint stiffness and the continuity of the force transmission path. While purlin welding may seem simple in practice, it demands extremely high standards in welding technology, weld precision, and component positioning. Even slight errors can lead to structural safety hazards.

[0003] Welding of steel beam purlins mainly relies on manual operation. First, controlling the heat input during thin-plate welding is extremely difficult, easily causing thermal deformation and resulting in localized warping or wavy twisting of the purlins. Second, limited by the manual control of the welding torch's posture and path by workers, weld consistency is generally poor, with defects such as undercut and incomplete fusion easily occurring in localized areas. This necessitates repeated grinding and re-welding, which is both time-consuming and costly. Furthermore, during manual welding, grain coarsening in the heated areas of the base material frequently occurs, reducing material toughness. These latent defects are usually difficult to detect in the early stages of use but create a hidden risk for later cracking.

[0004] The production pace of manual welding depends entirely on the skill level of the welder, resulting in inconsistent efficiency. It may take more than ten minutes for a skilled welder to complete a section of weld. When encountering complex nodes, the angle of the welding gun may need to be adjusted repeatedly or even re-clamped. Moreover, most projects have clear requirements for shortening the construction period, which often leads to companies needing to invest heavily in manpower to catch up with the schedule. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a steel beam purlin plate welding device, which aims to improve the problems of poor welding consistency, unstable weld appearance and mechanical properties in traditional manual welding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a steel beam purlin plate welding device, comprising: a welding frame, a control operation panel fixed on the upper surface of the welding frame, a control box fixed inside the welding frame, a wire feeder frame fixed on the upper surface of the welding frame, a welding frame fixed on the upper surface of the welding frame, a transverse positioning adjustment device assembly fixed on the outer side of the welding frame, and a longitudinal positioning adjustment device assembly fixed on the upper surface of the welding frame; the welding frame includes a second frame beam, an mounting plate fixed on the outer side of the second frame beam, a protective cover fixed on the outer side of the second frame beam, a longitudinal adjustment slide assembly provided on one side of the protective cover, a transverse adjustment slide assembly provided on the outer side of the protective cover, a welding gun support plate fixed on the outer wall of the transverse adjustment slide assembly, a welding gun assembly mounted on the outer wall of the welding gun support plate, a frame column fixed below the second frame beam, a column guard plate fixed to the outer wall of the frame column by bolts, and a frame fixing seat provided below the frame column.

[0007] As a further description of the above technical solution:

[0008] A guide rail slider is provided below the frame mounting base. A servo motor assembly is provided on the outside of the guide rail slider. A gear is fixed to the output end of the servo motor assembly. A limit sensor assembly is provided on the outside of the guide rail slider. A guard plate is provided below the frame mounting base. The guard plate is fixed to the upper surface of the welded frame. A guide rail body is fixed inside the guard plate. The inner wall of the guide rail slider slides on the outer wall of the guide rail body.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the servo motor assembly is fixed with a cable chain fixing plate, the inner wall of the cable chain fixing plate is provided with cable chain fixing bolts, the cable chain body is provided below the cable chain fixing plate, and the outer wall of the cable chain fixing bolts is threaded into the inside of the cable chain body.

[0011] As a further description of the above technical solution:

[0012] A rack is fixed to the inner wall of the first guard plate, and the rack meshes with a gear. A limit block is fixed to the end of the first guard plate, and a stop block is fixed to the outer wall of the limit block.

[0013] As a further description of the above technical solution:

[0014] The control panel includes a fixed base, a support rod is fixed to the upper surface of the fixed base, a control panel housing is fixed to the top of the support rod, a touch screen is fixed to the outside of the control panel housing, and multiple buttons are fixed to the outside of the control panel housing.

[0015] As a further description of the above technical solution:

[0016] The control box includes a housing, the outer wall of which is fixed to the inner side of the welded frame, and a storage door is hinged to the outer wall of the housing. An electrically controlled door is hinged to the outer side of the storage door.

[0017] As a further description of the above technical solution:

[0018] The welding frame includes a frame panel, a plurality of frame legs fixed to the lower surface of the frame panel, a long frame beam fixed to the lower surface of the frame panel and the outer wall of the frame legs, a short frame beam fixed to the lower surface of the frame panel and the outer wall of the frame legs, a welding machine fixing channel steel welded to the outer wall of the long frame beam, a control cabinet support plate fixed to the lower surface of the welding machine fixing channel steel, an upper surface of the control cabinet support plate fixed to the lower surface of the control box, and an outer wall of the control cabinet support plate fixed to the outer wall of the long frame beam.

[0019] As a further description of the above technical solution:

[0020] The wire feeder frame includes a frame side plate, the bottom end of which is threaded with a frame fixing bolt. The outer wall of the frame fixing bolt passes through the interior of the welding frame. A frame crossbeam is fixed to the outer wall of the frame side plate, and a frame support plate is fixed to the upper surface of the frame crossbeam. A welding machine assembly is fixed to the outer wall of the frame support plate.

[0021] As a further description of the above technical solution:

[0022] The lateral positioning adjustment device assembly includes an adjustment plate, the outer wall of which is fixed to the outer wall of the welded frame by bolts, an adjustment positioning plate is fixed to the outer wall of the adjustment plate, an adjustment slider is provided 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 threaded to the inside of the adjustment plate, a slider optical axis is fixed inside the adjustment slider, an 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 short crossbeam of the frame, and an adjustment handle is provided on the lower surface of the slider optical axis.

[0023] As a further description of the above technical solution:

[0024] The longitudinal positioning adjustment device assembly includes an adjustment plate, a permanent magnet block is fixed on the lower surface of the adjustment plate, the outer wall of the permanent magnet block is set on the upper surface of the frame panel, and multiple support plate bodies are fixed to the outer wall of the permanent magnet block by bolts. Multiple fixing bolts are passed through the bottom end of the support plate bodies, and the outer wall of the fixing bolts passes through the interior of the frame panel.

[0025] This utility model has the following beneficial effects:

[0026] 1. This invention achieves multi-dimensional and precise adjustment of the welding torch angle and position through the cooperation between the welding torch assembly, the longitudinal adjustment slide assembly and the transverse adjustment slide assembly in the welding frame. This ensures that the welding wire and the welding joint always maintain a reasonable angle and distance, solving the problems of poor welding consistency and unstable weld appearance and mechanical properties in traditional manual welding, and significantly improving welding quality.

[0027] 2. This invention achieves centralized setting and intelligent control of welding current, voltage, speed and other parameters by coordinating the touch screen and buttons on the control panel with the electrical control system in the control box. The operation is convenient and intuitive, avoiding human error and solving the problems of manual parameter adjustment, low efficiency and poor stability in traditional welding. It realizes the automation and intelligence of the welding process.

[0028] 3. This invention achieves the function of quickly fixing and accurately positioning the purlin plate by cooperating with the adjusting plate, support plate and permanent magnet block in the longitudinal positioning adjustment device assembly. It completes stable clamping without damaging the workpiece surface, and solves the problems of cumbersome installation, large positioning error and low efficiency of manual placement of traditional fixtures. It effectively improves the clamping efficiency and the standardization of pre-welding preparation work. Attached Figure Description

[0029] Figure 1 This is a perspective view of a steel beam purlin plate welding device proposed in this utility model;

[0030] Figure 2 This is a schematic diagram of the control panel box of a steel beam purlin welding device proposed in this utility model;

[0031] Figure 3 This is a schematic diagram of the shell structure of a steel beam purlin plate welding device proposed in this utility model;

[0032] Figure 4 This is a schematic diagram of the frame panel structure of a steel beam purlin plate welding device proposed in this utility model;

[0033] Figure 5 This is a schematic diagram of the frame side plate structure of a steel beam purlin plate welding device proposed in this utility model;

[0034] Figure 6 This is a schematic diagram of the frame beam section of a steel beam purlin plate welding device proposed in this utility model;

[0035] Figure 7This is a schematic diagram of the protective cover structure of a steel beam purlin plate welding device proposed in this utility model;

[0036] Figure 8 This is a schematic diagram of the adjusting vertical plate part of the steel beam purlin welding device proposed in this utility model;

[0037] Figure 9 This is a schematic diagram of the adjusting plate part of the steel beam purlin welding device proposed in this utility model.

[0038] Legend:

[0039] 100. Control panel; 101. Control panel housing; 102. Touch screen; 103. Buttons; 104. Support rod; 105. Fixed base; 200. Control box; 201. Housing; 202. Storage door; 203. Electrically controlled door; 300. Welding frame; 301. Frame panel; 302. Frame legs; 303. Long crossbeam; 304. Short crossbeam; 305. Welding machine mounting. Channel steel; 306, Control cabinet support plate; 400, Wire feeder frame; 401, Frame side plate; 402, Frame crossbeam one; 403, Frame support plate; 404, Frame fixing bolts; 405, Welding machine assembly; 500, Welding frame; 501, Frame crossbeam two; 502, Mounting plate; 503, Protective cover; 504, Longitudinal adjusting slide assembly; 505, Transverse adjusting slide assembly; 506, Welding gun. 507. Support plate; 508. Welding torch assembly; 509. Column guard plate; 510. Frame column; 511. Frame mounting base; 512. Guide rail slider; 513. Servo motor assembly; 514. Gear; 515. Limit sensor assembly; 516. Cable chain fixing plate; 517. Cable chain fixing bolt; 518. Cable chain body; 519. Guard plate one; 520. Guide rail body; 521. Rack; 522. Limit block; 522. Stop block; 600. Lateral positioning adjustment device assembly; 601. Adjustment plate; 602. Adjustment positioning plate; 603. Adjustment slider; 604. Slider fixing bolt; 605. Slider optical axis; 606. Optical axis support seat; 607. Adjustment handle; 700. Longitudinal positioning adjustment device assembly; 701. Adjustment plate; 702. Support plate body; 703. Fixing bolt one; 704. Permanent magnet block. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Reference Figures 1-5 This utility model provides an embodiment of a steel beam purlin welding device, comprising: a welding frame 300, a control operation panel 100 fixed on the upper surface of the welding frame 300, a control box 200 fixed inside the welding frame 300, a wire feeder frame 400 fixed on the upper surface of the welding frame 300, a welding frame 500 fixed on the upper surface of the welding frame 300, a transverse positioning adjustment device assembly 600 fixed on the outer side of the welding frame 300, and a longitudinal positioning adjustment device assembly 700 fixed on the upper surface of the welding frame 300; the welding frame 500... The machine includes a second frame beam 501, a mounting plate 502 fixed to the outer side of the second frame beam 501, a protective cover 503 fixed to the outer side of the second frame beam 501, a longitudinal adjusting slide assembly 504 provided on one side of the protective cover 503, a transverse adjusting slide assembly 505 provided on the outer side of the protective cover 503, a welding torch support plate 506 fixed to the outer wall of the transverse adjusting slide assembly 505, a welding torch assembly 507 mounted on the outer wall of the welding torch support plate 506, and a frame column 509 fixed below the second frame beam 501. The outer wall of the frame column 509 is fixed with bolts. Below the upright support plate 508 and the frame upright 509, there is a frame mounting base 510. Below the frame mounting base 510, there is a guide rail slider 511. A servo motor assembly 512 is mounted on the outside of the guide rail slider 511. A gear 513 is fixed to the output end of the servo motor assembly 512. A limit sensor assembly 514 is mounted on the outside of the guide rail slider 511. Below the frame mounting base 510, there is a first guard plate 518. The first guard plate 518 is fixed to the upper surface of the welded frame 300. Inside the first guard plate 518, there is a guide rail body 519. The guide rail slider 519... The inner wall of 11 slides on the outer wall of the guide rail body 519. The outer wall of the servo motor assembly 512 is fixed with a drag chain fixing plate 515. The inner wall of the drag chain fixing plate 515 is provided with a drag chain fixing bolt 516. The drag chain body 517 is provided below the drag chain fixing plate 515. The outer wall of the drag chain fixing bolt 516 is threaded into the inside of the drag chain body 517. The inner wall of the guard plate 518 is fixed with a rack 520. The rack 520 and the gear 513 mesh with each other. The end of the guard plate 518 is fixed with a limit block 521. The outer wall of the limit block 521 is fixed with a stop block 522.

[0042] Specifically, the servo motor assembly 512 drives the gear 513 to mesh with the rack 520 inside the 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 stability and continuity of the welding process. The welding torch assembly 507 is mounted on the welding torch support plate 506 and is adjusted by the cooperation of the transverse adjustment slide assembly 505 and the longitudinal adjustment slide assembly 504, enabling multi-dimensional flexible changes in the angle and position of the welding torch during the welding process. This ensures that the welding wire is always kept at the optimal welding angle and distance, improving the forming quality and structural strength of the weld joint. The entire device consists of a control panel 100 and a control box 200, forming a control system. The operator can adjust the welding parameters through the touch screen 102 and buttons 103. Precise settings and intelligent adjustments avoid errors and inconsistencies inherent in traditional manual adjustments. During welding, the drag chain body 517, in conjunction with the drag chain fixing plate 515 and drag chain fixing bolts 516, manages the control cables in an orderly manner, reducing cable bending and interference. The limit sensor assembly 514 works in conjunction with the limit block 521 and stop block 522 to achieve automatic start-stop control and end-limit protection functions, preventing the welding frame 500 from exceeding limits and causing equipment damage. This device features a compact structure, high integration, and high automation level. Through a precise servo control system and modular slide adjustment mechanism, it achieves efficient and stable control of the welding path and process parameters. 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.

[0043] Reference Figures 5-9The control panel 100 includes a fixed base 105, a support rod 104 fixed to the upper surface of the fixed base 105, a control panel housing 101 fixed to the top of the support rod 104, a touch screen 102 fixed to the outside of the control panel housing 101, and multiple buttons 103 fixed to the outside of the control panel housing 101. The control box 200 includes a housing 201, the outer wall of the housing 201 fixed to the inner side of the welded frame 300, a storage door 202 hinged to the outer wall of the housing 201, and an electrically controlled door 203 hinged to the outer side of the storage door 202. The welded frame 300 includes a frame panel 301, multiple frame legs 302 fixed to the lower surface of the frame panel 301, and the frame surface... The lower surface of the panel 301 and the outer wall of the frame legs 302 are both fixed with a long crossbeam 303. The lower surface of the panel 301 and the outer wall of the frame legs 302 are both fixed with a short crossbeam 304. The outer wall of the long crossbeam 303 is welded with a welding machine fixing channel steel 305. The lower surface of the welding machine fixing channel steel 305 is fixed with a control cabinet support plate 306. The upper surface of the control cabinet support plate 306 is fixed to the lower surface of the control box 200. The outer wall of the control cabinet support plate 306 is fixed to the outer wall of the long crossbeam 303. The wire feeder frame 400 includes a frame side plate 401. The bottom end of the frame side plate 401 is threaded with a frame fixing bolt 404. The outer wall of the frame fixing bolt 404 passes through the welding frame. Inside the body 300, a frame crossbeam 402 is fixed to the outer wall of the frame side plate 401. A frame support plate 403 is fixed to the upper surface of the frame crossbeam 402. A welding machine assembly 405 is fixed to 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 300 by bolts. An adjustment positioning plate 602 is fixed to the outer wall of the adjustment plate 601. An adjustment slider 603 is provided 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 to the inside of the adjustment plate 601. A component is fixed inside the adjustment slider 603. The slider optical axis 605 has an optical axis support seat 606 fixed at its driving end. The outer wall of the optical axis support seat 606 is fixed to the outer wall of the short crossbeam 304 of the frame. The lower surface of the slider optical axis 605 is provided with an adjustment handle assembly 607. The longitudinal positioning adjustment device assembly 700 includes an adjustment plate 701. The lower surface of the adjustment plate 701 is fixed with a permanent magnet block 704. The outer wall of the permanent magnet block 704 is set on the upper surface of the frame panel 301. The outer wall of the permanent magnet block 704 is fixed with multiple support plate bodies 702 by bolts. Multiple fixing bolts 703 are passed through the bottom end of the support plate bodies 702. The outer wall of the fixing bolts 703 passes through the interior of the frame panel 301.

[0044] Specifically, the control panel 100 serves as the human-machine interface between the operator and the equipment. The control panel housing 101 is stably supported at a reasonable operating height by a fixed base 105 and a support rod 104. The operator can set parameters and monitor status via the touchscreen 102, and use multiple buttons 103 to switch functions and perform quick operations, simplifying the operation process and improving response efficiency. Control signals are processed by the internal electrical control system within the housing 201 of the control box 200. The storage door 202 and the electrically controlled door 203 facilitate maintenance and daily management, while also providing a certain degree of protection to effectively prevent... External dust, moisture, and other contaminants interfere with electrical components, ensuring stable equipment operation. The welding frame 300, through its frame panel 301 and multiple frame legs 302, forms an integrated support platform with excellent load-bearing capacity and structural rigidity. The long crossbeam 303 and short crossbeam 304 of the frame together constitute a rigid frame, supporting the entire system to withstand dynamic load impacts during welding. The welding machine fixing channel steel 305 and the control cabinet support plate 306 are used to precisely support the control box 200 and the wire feeding mechanism, improving the structural stability of the device operation. The frame side plate 401 and frame crossbeam 401 in the wire feeder frame 400... 2. The welding machine assembly 405 is firmly supported by components such as the frame support plate 403. A high-strength connection to the main frame structure is achieved via frame fixing bolts 404, preventing displacement caused by vibration during welding. The lateral positioning adjustment device assembly 600 is linked to the adjusting slider 603 via the adjusting plate 601. Guided and supported by the slider optical axis 605 and optical axis support seat 606, it achieves lateral fine-tuning and precise alignment of the adjusting positioning plate 602. The operator can quickly manually adjust the slider using the adjusting handle 607. The slider fixing bolt 604 locks the slider position, improving clamping accuracy and operational convenience. The longitudinal positioning adjustment device assembly 700 forms a stable vertical clamping surface through the adjustment plate 701 and multiple support plate bodies 702. The permanent magnet block 704 performs non-contact adsorption and fixation of the workpiece under the action of the fixing bolt 703. This not only improves the efficiency of workpiece installation, but also effectively avoids surface indentations and damage caused by the fixture. It is particularly suitable for steel components with high surface quality requirements. At the same time, this structure improves the consistency and accuracy of clamping and repeated positioning, and provides a reliable positioning basis for the subsequent welding process. The various system structures of this invention cooperate with each other and have high integration, high reliability and high operability.

[0045] Working principle: Upon startup, welding parameters, including current, voltage, and welding speed, are set via the control panel (100). The operator inputs data into the electrical control system in the control box (200) via the touchscreen (102) and buttons (103). The electrical control system is located within the housing (201) and is maintained and repaired via the storage door (202) and the electrical control door (203). After setting, the welding machine assembly (405) begins operation. It is fixed to the welding frame (300) via the wire feeder frame (401) side plate, (402) crossbeam, (403) support plate, and (404) fixing bolts, and is linked to the welding frame (500). The welding frame (300) is connected via the frame panel (301) and the frame legs (302). The 303 long crossbeam, 304 short crossbeam, 305 welding machine fixing channel steel, and 306 control cabinet support plate together form a stable working platform. Simultaneously, the purlin plate to be welded is first placed at the 602 adjusting positioning plate in the transverse positioning adjustment device assembly 600. After tightening the adjusting handle assembly 607, initial transverse positioning is achieved. The adjusting slider 603 moves along the adjusting 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, completing the transverse clamping positioning. Meanwhile, the 701 adjusting vertical plate in the longitudinal positioning adjustment device assembly 700, in conjunction with the 704 permanent magnet block, attracts and fixes the purlin support plate, and the 702 support plate body and 704... 03. Secure the fixing bolts to the frame panel 301 to complete the longitudinal positioning and ensure the purlin plate is placed vertically and centered. Then, finely adjust the position and angle of the welding torch assembly 507 using the longitudinal adjustment slide assembly 504 and the transverse adjustment slide assembly 505. The welding torch is supported by the welding torch support plate 506 and fixed on the slide, ensuring that the welding torch wire forms a suitable angle with the welding flange and web plate. At the same time, the welding area is mechanically protected by the mounting plate 502 and the protective cover 503. The entire welding frame 500 is established with the frame beam 501 and the frame column 509, and is connected to the welding frame 300 by the frame fixing seat 510. The guide rail body 519 below the protective plate 518 is used to achieve the connection. The 511 guide rail slider slides forward on the 519 guide rail body. The slider is driven by the 512 servo motor assembly. The motor output drives the gear 513 to rotate. The gear 513 meshes with the rack 520 to achieve precise displacement control. The cable chain body 517 achieves dynamic management of cables and signal cables through the 515 cable chain fixing plate and the 516 cable chain fixing bolts to avoid tangling and wear. The 514 limit sensor assembly, together with the 521 limit block and the 522 stop block, senses the position of the welding frame 500 at the end of welding and triggers the automatic return function. After welding is completed, the 500 welding frame returns to the starting position. The whole system has a high degree of automation, significantly improves welding efficiency and quality, and reduces manual operation and errors.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding device for steel beam purlin plates, characterized in that, include: A welding frame (300) is provided, with a control operation panel (100) fixed on its upper surface, a control box (200) fixed inside the welding frame (300), a wire feeder frame (400) fixed on its upper surface, a welding frame (500) fixed on its upper surface, a transverse positioning adjustment device assembly (600) fixed on its outer side, and a longitudinal positioning adjustment device assembly (700) fixed on its upper surface. The welding frame (500) includes a frame beam two (501), a mounting plate (502) is fixed to the outside of the frame beam two (501), a protective cover (503) is fixed to the outside of the frame beam two (501), a longitudinal adjustment slide assembly (504) is provided on one side of the protective cover (503), a transverse adjustment slide assembly (505) is provided on the outside of the protective cover (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 beam two (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 provided below the frame column (509).

2. The steel beam purlin plate welding device according to claim 1, characterized in that, A guide rail slider (511) is provided below the frame mounting base (510). A servo motor assembly (512) is provided on the outside of the guide rail slider (511). A gear (513) is fixed at the output end of the servo motor assembly (512). A limit sensor assembly (514) is provided on the outside of the guide rail slider (511). A guard plate (518) is provided below the frame mounting base (510). The guard plate (518) is fixed on the upper surface of the welded frame (300). A guide rail body (519) is fixed inside the guard plate (518). The inner wall of the guide rail slider (511) slides on the outer wall of the guide rail body (519).

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

4. The steel beam purlin plate welding device according to claim 2, characterized in that, A rack (520) is fixed to the inner wall of the first guard plate (518), the rack (520) meshes with a gear (513), a limit block (521) is fixed to the end of the first guard plate (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 panel (100) includes a fixed base (105), a support rod (104) is fixed on the upper surface of the fixed base (105), a control panel box (101) is fixed at the top of the support rod (104), a touch screen (102) is fixed on the outside of the control panel box (101), and a plurality of buttons (103) are fixed on the outside of the control panel box (101).

6. The steel beam purlin plate welding device according to claim 1, characterized in that, The control box (200) includes a housing (201), the outer wall of which is fixed to the inner side of the welded frame (300), and a storage door (202) is hinged to the outer wall of the housing (201). An electric control door (203) is hinged to the outer side of the storage door (202).

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

8. The steel beam purlin plate welding device according to claim 1, characterized in that, The wire feeder frame (400) includes a frame side plate (401), the bottom end of which is threaded with a frame fixing bolt (404). The outer wall of the frame fixing bolt (404) passes through the interior of the welding frame (300). A frame crossbeam (402) is fixed to the outer wall of the frame side plate (401). A frame support plate (403) is fixed to the upper surface of the frame crossbeam (402). A welding machine assembly (405) is fixed to the outer wall of the frame support plate (403).

9. The steel beam purlin plate welding device according to claim 1, characterized in that, The lateral 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 welded frame (300) by bolts. An adjustment positioning plate (602) is fixed to the outer wall of the adjustment plate (601). An adjustment slider (603) is provided 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 threaded to the inside of the adjustment plate (601). A slider optical axis (605) is fixed inside the adjustment slider (603). An optical axis support seat (606) is fixed to the driving end of the slider optical axis (605). The outer wall of the optical axis support seat (606) is fixed to the outer wall of the short crossbeam (304) of the frame. An adjustment handle assembly (607) is provided on the lower surface of the slider optical axis (605).

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 plate (701). A permanent magnet block (704) is fixed on the lower surface of the adjustment plate (701). The outer wall of the permanent magnet block (704) is set on the upper surface of the frame panel (301). Multiple support plate bodies (702) are fixed to the outer wall of the permanent magnet block (704) by bolts. Multiple fixing bolts (703) are passed through the bottom end of the support plate body (702). The outer wall of the fixing bolts (703) passes through the interior of the frame panel (301).

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