A welding device for processing metal steel structures

Abstract

The present application relates to the technical field of welding, and provides a welding device for metal steel structure processing, which comprises a base, a conveying belt arranged on the top of the base, a feeding mechanism and a brushing mechanism, a gantry slidably connected to the top of the base through an electric sliding rail, a control box fixedly connected to the left side of the gantry, a welding gun fixedly connected to the front of the gantry, and a clamping mechanism arranged on the base, wherein the feeding mechanism comprises a mounting plate, a track, a motor, a threaded rod, a sliding rod, a limiting rod, a cross arm, a connecting block, a steel plate clamp, a supporting plate, a connecting ring and a fixing plate, the track is fixedly connected to the top of the base, the mounting plate is slidably connected to the surface of the track, and the fixing plate is fixedly connected to the top of the mounting plate. Through the above technical scheme, the technical problem that it is difficult to perform vertical welding between two plates, it is also difficult to rotate or tilt the workpiece to achieve the best welding angle for welding, and the welding quality is affected in the prior art is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of welding technology, and more specifically, to a welding apparatus for processing metal steel structures. Background Technology

[0002] During the fabrication of the power tower base, two steel plates need to be welded together. The steel plate welding device refers to the equipment or system used to connect the steel plates, which includes welding equipment, auxiliary tools, automation systems, etc.

[0003] Patent CN211331951U discloses a steel plate welding device, including a base, a spring fixedly connected to the top of the base, a work plate fixedly connected to the top of the spring, and a threaded rod movably connected inside the work plate. This steel plate welding device has a baffle at the top of a support rod, and an upper movable block on the side of the baffle. Grooves are formed on the sides of both baffles, allowing a crossbar to move vertically in the support rod. A telescopic cylinder connects the top of the lower movable block and the bottom of the upper movable block, allowing the lower movable block to move freely vertically in the support rod. The upper and lower movable blocks move on the baffles and crossbar, fixing the steel plate to the work plate. By utilizing the movable blocks and sliders, the position can be adjusted horizontally and vertically, making it convenient to weld different parts of the steel plate, thus achieving a quick and convenient adjustment of the welding position.

[0004] However, the aforementioned device is difficult to use for vertical welding between two plates, and it is also difficult to rotate or tilt the workpiece to achieve the optimal welding angle, affecting the welding quality. Therefore, a welding device for metal steel structure processing is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] To overcome the above-mentioned defects, embodiments of the present invention provide a welding device for metal steel structure processing, which solves the technical problems in the prior art that make it difficult to perform vertical welding between two plates and difficult to rotate or tilt the workpiece to achieve the optimal welding angle, thus affecting the welding quality.

[0006] According to one aspect, at least one embodiment of the present invention provides a welding device for processing metal steel structures, including a base, a conveyor belt, a feeding mechanism, and a washing mechanism disposed on the top of the base, a gantry frame slidably connected to the top of the base via an electric slide rail, a control box fixedly connected to the left side of the gantry frame, a welding torch fixedly connected to the front of the gantry frame, a clamping mechanism disposed on the base, and the feeding mechanism including: a mounting plate, a track, a motor, a threaded rod, a sliding rod, a limiting rod, a cross arm, a connecting block, a steel plate clamp, a support plate, a connecting ring, and a fixing plate, the track being fixedly connected to the top of the base, the bottom of the mounting plate being slidably connected to the track surface, the fixing plate being fixedly connected to the top of the mounting plate, the motor being fixedly connected to the top of the mounting plate, the threaded rod being fixedly connected to the motor output end, the limiting rod being fixedly connected to the top of the mounting plate, the sliding rod being movably connected to the inner wall of the limiting rod, the bottom left side of the cross arm being rotatably connected to the circumferential surface of the sliding rod, the connecting ring being fixedly connected to the circumferential surface of the sliding rod, the right side of the cross arm being hinged to the inside of the limiting rod, and the connecting block being hinged. At the top of the crossarm, the steel plate clamp is rotatably connected to the back of the connecting block via a torsion spring. The support plate is fixedly connected to the top of the connecting block. The threaded rod is threadedly connected to the inner wall of the connecting ring and rotatably connected to the inside of the fixed plate. The bottom outer wall of the steel plate clamp is fixedly connected to the inner wall of the top of the crossarm via an elastic block. This ensures that the steel plate is firmly clamped to the surface of the support plate, preventing deformation due to its own weight. This creates optimal working conditions for subsequent washing and welding processes. When the device is running, the steel plate reaches the designated position via a conveyor belt, at which point the motor starts. The rotation drives the threaded rod to rotate, and the rotation of the threaded rod causes the connecting ring to move towards the motor through the threads on its surface. The movement of the connecting ring causes the sliding rod to move towards the motor. The movement of the sliding rod pushes the cross arm, reducing the angle between the cross arm and the cross arm. The cross arm as a whole lengthens and moves upward at the top, causing the connecting block to rise. The upward movement of the connecting block causes the pallet to move upward and lift the steel plate. At the same time, the angle at the top of the cross arm also decreases, causing the steel plate clamp to rotate along the axis of the connecting block, thereby clamping the steel plate and fixing it to the surface of the pallet to prevent the steel plate from deforming due to its own weight. This creates the best working conditions for the subsequent brushing and welding processes.

[0007] For example, in a welding device for processing metal steel structures provided by at least one embodiment of the present invention, the brushing mechanism includes: a rack, a roller brush, a support column, and a guard plate. The rack is fixedly connected to the left and right sides of the mounting plate, the support column is fixedly connected to the top of the base, the circumferential surface of the roller brush is rotatably connected to the inner wall of the support column, and the guard plate is fixedly connected to the outer wall of the two support columns. The brushing mechanism also includes: a gear, a rotating shaft, a belt, and a gear cover. The gear is rotatably connected to the outer wall between the two support columns, the rotating shaft is rotatably connected to the inner wall of the support column, the roller brush is connected to the circumferential surface of the rotating shaft via belt drive, the gear cover is fixedly connected to the outer wall between the two support columns, the gear is located inside the gear cover, the gear is located on the movement trajectory of the rack, and the guard plate is located on top of the roller brush. This device can remove oxides from the surface of the steel plate and clean its surface, improving the subsequent welding quality. The guard plate can also prevent residue from splashing, improving the safety of the device.

[0008] According to another aspect, at least one embodiment of the present invention also provides a welding device for processing metal steel structures. The clamping mechanism includes: a power cabinet, a turntable, a support column, and a connecting frame. The support column is fixedly connected to the top of the base, the power cabinet is fixedly connected to the top of the base, and the turntable is rotatably connected to the output end of the power cabinet. The clamping mechanism further includes: a hydraulic telescopic rod, a connecting frame, a scraper, a support plate, a push block, a connecting plate, and a movable clamping block. The connecting frame is fixedly connected to the top of the power cabinet, and the scraper is slidably connected to the right side of the connecting frame.

[0009] For example, in a welding device for processing metal steel structures provided in at least one embodiment of the present invention, the fixed end of the hydraulic telescopic rod is fixedly connected to the inside of the support column, the support plate is fixedly connected between the two hydraulic telescopic rods, the push block is fixedly connected to the telescopic end of the hydraulic telescopic rod, the axis of the hydraulic telescopic rod is located on the surface of the connecting plate, the connecting plate is fixedly connected to the front of the turntable, and the movable clamping block is fixedly connected to the upper and lower ends of the connecting plate. This allows the workpiece to be adjusted to a reasonable welding angle to begin welding. A suitable welding angle ensures a smooth weld surface without undercut, while an improper angle can lead to defects such as poor weld formation, insufficient strength, porosity, and slag inclusions. After welding, the weld slag can be scraped off with a scraper, increasing its aesthetic appeal and reducing subsequent manual labor, thereby improving production efficiency.

[0010] After the steel plate passes through the cleaning mechanism, the movable clamps open, and the steel plate to be welded is placed into the gap between the movable clamps and clamped. The motor in the power cabinet starts, and through the internal gear set, the torque is amplified to drive the turntable to rotate. The turntable rotates and adjusts the steel plate to the required angle. At this time, the cleaned steel plate moves to the surface of the workpiece to be welded. The gantry moves, driving the welding torch to the welding position to begin welding. During the welding process, the workpiece is first tack welded (position welding) to fix the relative position of the steel plate and workpiece, avoiding misalignment of the joint due to thermal deformation or external force during full welding (continuous welding). After the tack weld is firm, the motor reverses to release the clamped steel plate, and the mounting plate and the rest of the feeding mechanism move back. At this time, the turntable rotates to adjust the workpiece to the reasonable welding angle to begin full welding. A suitable welding angle can make the weld surface smooth and free of undercut, while an improper angle can lead to defects such as poor weld formation, insufficient strength, porosity, and slag inclusions. After welding is completed, the movable clamping block releases, the hydraulic telescopic rod extends and pushes the pusher block forward, pushing the workpiece out. At the same time, the scraper falls and contacts the welded area, scraping off the weld slag as the workpiece moves. This improves the aesthetics, reduces subsequent manual labor, and increases production efficiency.

[0011] The beneficial effects of the embodiments of the present invention are as follows:

[0012] In this invention, the steel plate is securely clamped to the surface of the pallet by the coordinated operation of the mounting plate, track, motor, threaded rod, sliding rod, limit rod, cross arm, connecting block, steel plate clamp, pallet, connecting ring, and fixing plate, preventing the steel plate from deforming due to its own weight, thus creating optimal working conditions for subsequent washing and welding processes.

[0013] In this invention, the oxides on the surface of the steel plate can be brushed off and the surface can be cleaned by the coordinated operation of the rack, gear, shaft, belt, roller brush, support column, guard plate and gear cover, which improves the quality of subsequent welding. The guard plate can also prevent residue from splashing and improve the safety of the device.

[0014] In this invention, the workpiece can be adjusted to a suitable welding angle by the coordinated operation of the power cabinet, turntable, support column, connecting frame, hydraulic telescopic rod, connecting frame, scraper, support plate, push block, connecting plate, and movable clamping block. A suitable welding angle results in a smooth weld surface without undercut, while an improper angle leads to defects such as poor weld formation, insufficient strength, porosity, and slag inclusions. After welding, the weld slag can be scraped off with a scraper, improving aesthetics, reducing subsequent manual labor, and increasing production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the clamping mechanism of the present invention;

[0018] Figure 3 This is an enlarged view of the clamping mechanism of the present invention;

[0019] Figure 4 This is a schematic diagram of the mounting plate structure of the clamping mechanism of the present invention;

[0020] Figure 5 For the present invention Figure 3 Enlarged view of the structure at point A;

[0021] Figure 6 This is a half-sectional view of the brushing mechanism of the present invention;

[0022] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the middle;

[0023] Figure 8 This is a schematic diagram of the clamping mechanism of the present invention;

[0024] Figure 9 For the present invention Figure 8 Enlarged view of the structure at point C.

[0025] In the diagram: 1. Base; 2. Conveyor belt; 3. Feeding mechanism; 301. Mounting plate; 302. Track; 303. Motor; 304. Threaded rod; 305. Sliding rod; 306. Limiting rod; 307. Cross arm; 308. Connecting block; 309. Steel plate clamp; 310. Support plate; 311. Connecting ring; 312. Fixing plate; 4. Brushing mechanism; 401. Rack; 402. Gear; 403. Rotating shaft; 404. Belt; 405. Roller brush; 406. Support column; 407. Guard plate; 408. Gear cover; 5. Gantry frame; 6. Welding torch; 7. Clamping mechanism; 701. Power cabinet; 702. Turntable; 703. Support column; 704. Hydraulic telescopic rod; 705. Connecting frame; 706. Scraper; 707. Support plate; 708. Push block; 709. Connecting plate; 710. Movable clamping block; 8. Control box. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-9As shown, a welding device for processing metal steel structures according to an embodiment of the present invention is illustrated. It includes a base 1, a conveyor belt 2, a feeding mechanism 3, and a washing mechanism 4 on the top of the base 1. A gantry frame 5 is slidably connected to the top of the base 1 via an electric slide rail. A control box 8 is fixedly connected to the left side of the gantry frame 5, and a welding torch 6 is fixedly connected to the front of the gantry frame 5. A clamping mechanism 7 is provided on the base 1. The feeding mechanism 3 includes: a mounting plate 301, a track 302, a motor 303, a threaded rod 304, a sliding rod 305, a limiting rod 306, a cross arm 307, a connecting block 308, a steel plate clamp 309, a support plate 310, a connecting ring 311, and a fixing plate 312. The track 302 is fixedly connected to the top of the base 1. The bottom of the mounting plate 301 is slidably connected to the surface of the track 302. The fixing plate 312 is fixedly connected to the top of the mounting plate 301. The motor 303 is fixedly connected to the top of the mounting plate 301. The threaded rod 304... 4. Fixedly connected to the output end of motor 303, limit rod 306 fixedly connected to the top of mounting plate 301, slide rod 305 movably connected to the inner wall of limit rod 306, bottom left side of cross arm 307 rotatably connected to the circumferential surface of slide rod 305, connecting ring 311 fixedly connected to the circumferential surface of slide rod 305, right side of cross arm 307 hinged to the inside of limit rod 306, connecting block 308 hinged to the top of cross arm 307, steel plate clamp 309 rotatably connected to the back of connecting block 308 through torsion spring, support plate 310 fixedly connected to the top of connecting block 308, threaded rod 304 threadedly connected to the inner wall of connecting ring 311, threaded rod 304 rotatably connected to the inside of fixed plate 312, bottom outer wall of steel plate clamp 309 fixedly connected to the top inner wall of cross arm 307 through elastic block, which can realize the steel plate being firmly clamped on the surface of support plate 310 to prevent the steel plate from deforming due to its own weight, creating the best working conditions for subsequent brushing and welding.

[0033] In some examples, when the device is running, the steel plate reaches the designated position via the conveyor belt 2. At this time, the motor 303 starts, and the rotation of the motor 303 drives the threaded rod 304 to rotate. The rotation of the threaded rod 304 causes the connecting ring 311 to move towards the motor 303 through the threads on its surface. The movement of the connecting ring 311 causes the slide rod 305 to move towards the motor 303. The movement of the slide rod 305 pushes the cross arm 307, causing the angle of the cross arm 307 to decrease. The cross arm 307 is stretched as a whole and moves upward, causing the connecting block 308 to rise. The upward movement of the connecting block 308 causes the support plate 310 to move upward, lifting the steel plate. At the same time, the angle at the top of the cross arm 307 also decreases, causing the steel plate clamp 309 to rotate along the axis of the connecting block 308, thereby clamping the steel plate and fixing it on the surface of the support plate 310 to prevent the steel plate from deforming due to its own weight, creating the best working conditions for the subsequent washing and welding processes.

[0034] For example, such as Figures 1-9As shown, the scrubbing mechanism 4 includes: a rack 401, a roller brush 405, a support column 406, and a guard plate 407. The rack 401 is fixedly connected to the left and right sides of the mounting plate 301, the support column 406 is fixedly connected to the top of the base 1, the roller brush 405 is rotatably connected to the inner wall of the support column 406, and the guard plate 407 is fixedly connected to the outer walls of the two support columns 406. The scrubbing mechanism 4 also includes: a gear 402, a rotating shaft 403, a belt 404, and a gear cover 408. The gear 402 is rotatably connected between the two support columns 406. On the outer wall, the rotating shaft 403 is rotatably connected to the inner wall of the support column 406. The roller brush 405 is connected to the circumferential surface of the rotating shaft 403 via the belt 404. The gear cover 408 is fixedly connected to the outer wall between the two support columns 406. The gear 402 is located inside the gear cover 408 and is located on the movement trajectory of the rack 401. The guard plate 407 is located on top of the roller brush 405, which can remove oxides from the surface of the steel plate and clean its surface to improve the subsequent welding quality. The guard plate 407 can also prevent residue from splashing and improve the safety of the device.

[0035] like Figures 1-9 As shown, in another embodiment of the present invention, the clamping mechanism 7 includes: a power cabinet 701, a turntable 702, a support column 703, and a connecting frame 705. The support column 703 is fixedly connected to the top of the base 1, the power cabinet 701 is fixedly connected to the top of the base 1, and the turntable 702 is rotatably connected to the output end of the power cabinet 701. The clamping mechanism 7 also includes: a hydraulic telescopic rod 704, a connecting frame 705, a scraper 706, a support plate 707, a push block 708, a connecting plate 709, and a movable clamping block 710. The connecting frame 705 is fixedly connected to the top of the power cabinet 701, and the scraper 706 is slidably connected to the right side of the connecting frame 705. On the side, the fixed end of the hydraulic telescopic rod 704 is fixedly connected to the inside of the support column 703. The support plate 707 is fixedly connected between the two hydraulic telescopic rods 704. The push block 708 is fixedly connected to the telescopic end of the hydraulic telescopic rod 704. The axis of the hydraulic telescopic rod 704 is located on the surface of the connecting plate 709. The connecting plate 709 is fixedly connected to the front of the turntable 702. The movable clamping block 710 is fixedly connected to the upper and lower ends of the connecting plate 709. The workpiece can be adjusted to a reasonable welding angle to start welding. A suitable welding angle can make the weld surface smooth and free of undercut. An improper angle will lead to defects such as poor weld formation, insufficient strength, porosity, and slag inclusions. After welding, the weld slag can be scraped off with a scraper to increase its aesthetics and reduce subsequent manual labor, thereby improving production efficiency.

[0036] In some examples, after the steel plate is clamped, the mounting plate 301 moves along the track 302. The movement of the mounting plate 301 drives the rack 401 to move. The rack 401 moves until it contacts the gear 402. The continuous movement of the rack 401 meshes with the gear 402, causing the gear 402 to rotate. The rotation of the gear 402 drives the roller brush 405 to rotate through the belt 404. The rotation of the roller brush 405 removes oxides from the surface of the steel plate and cleans its surface, improving the quality of subsequent welding. The guard plate 407 can also prevent residue from splashing and improve the safety of the device.

[0037] For example, such as Figures 1-9 As shown, after the steel plate passes through the brushing mechanism 4, the movable clamping block 710 opens, and the steel plate to be welded is placed into the gap of the movable clamping block 710. The movable clamping block 710 clamps the plate, and the motor 303 in the power cabinet 701 starts. Through the internal gear set, the torque is amplified and the turntable 702 is driven to rotate. The turntable 702 rotates to adjust the steel plate to the required angle. At this time, the cleaned steel plate moves to the surface of the workpiece to be welded. The gantry 5 moves, driving the welding torch 6 to the welding position to start welding. During the welding process, the workpiece will first be spot welded (position welding) to fix the relative position of the steel plate workpiece, so as to avoid misalignment of the joint due to thermal deformation or external force during full welding (continuous welding). After the spot welded workpiece is firmly fixed, the motor 303 reverses to release the clamped steel plate. The mounting plate 301 and the other structures of the feeding mechanism 3 move back. At this time, the turntable 702 rotates to adjust the workpiece to a reasonable welding angle to start full welding. A suitable welding angle can make the weld surface smooth and free of undercut. An improper angle will lead to defects such as poor weld formation, insufficient strength, porosity, and slag inclusions. After welding is completed, the movable clamping block 710 is released, the hydraulic telescopic rod 704 extends and pushes the pusher block 708 forward. The pusher block 708 pushes the workpiece out, and at the same time, the scraper 706 falls and contacts the welding area, scraping off the weld slag as the workpiece moves. This increases the aesthetics and reduces subsequent manual labor, thereby improving production efficiency.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A welding device for metal steel structure processing, comprising a base (1), characterized in that: The base (1) top is provided with a conveyor belt (2), a feeding mechanism (3) and a brushing mechanism (4), the base (1) top is slidably connected with a portal frame (5) through an electric slide rail, the left side of the portal frame (5) is fixedly connected with a control box (8), the front of the portal frame (5) is fixedly connected with a welding gun (6), the base (1) is provided with a clamping mechanism (7), the feeding mechanism (3) comprises an installation plate (301), a track (302), a motor (303), a threaded rod (304), a sliding rod (305), a limiting rod (306), a cross arm (307), a connecting block (308), a steel plate clamp (309), a supporting plate (310), a connecting ring (311), and a fixed plate (312), the track (302) is fixedly connected to the top of the base (1), the bottom of the installation plate (301) is slidably connected to the surface of the track (302), the fixed plate (312) is fixedly connected to the top of the installation plate (301), the motor (303) is fixedly connected to the top of the installation plate (301), the threaded rod (304) is fixedly connected to the output end of the motor (303), the limiting rod (306) is fixedly connected to the top of the installation plate (301), the sliding rod (305) is movably connected to the inner wall of the limiting rod (306), the bottom left side of the cross arm (307) is rotatably connected to the circumferential surface of the sliding rod (305), the connecting ring (311) is fixedly connected to the circumferential surface of the sliding rod (305), the right side of the cross arm (307) is hingedly connected to the inside of the limiting rod (306), the connecting block (308) is hingedly connected to the top of the cross arm (307), the steel plate clamp (309) is rotatably connected to the back of the connecting block (308) through a torsional spring, and the supporting plate (310) is fixedly connected to the top of the connecting block (308). The threaded rod (304) is threadedly connected to the inner wall of the connecting ring (311), and the threaded rod (304) is rotatably connected to the inside of the fixed plate (312); the bottom outer wall of the steel plate clamp (309) is fixedly connected to the top inner wall of the cross arm (307) through an elastic block. The brushing mechanism (4) comprises a rack (401), a roller brush (405), a support column (406), and a guard plate (407), the rack (401) is fixedly connected to the left and right sides of the installation plate (301), the support column (406) is fixedly connected to the top of the base (1), the circumferential surface of the roller brush (405) is rotatably connected to the inner wall of the support column (406), and the guard plate (407) is fixedly connected to the outer walls of the two support columns (406). The brushing mechanism (4) further comprises a gear (402), a rotating shaft (403), and a belt (404), the gear (402) is rotatably connected to the outer wall between the two support columns (406), the rotating shaft (403) is rotatably connected to the inner wall of the support column (406), the roller brush (405) is drivingly connected to the circumferential surface of the rotating shaft (403) through the belt (404), and the gear (402) is located on the movement track of the rack (401). The clamping mechanism (7) comprises a power cabinet (701), a rotating disc (702), a supporting column (703), and a connecting frame (705), the supporting column (703) is fixedly connected to the top of the base (1), the power cabinet (701) is fixedly connected to the top of the base (1), the rotating disc (702) is rotatably connected to the output end of the power cabinet (701), and the connecting frame (705) is fixedly connected to the top of the power cabinet (701). The clamping mechanism (7) further comprises a hydraulic telescopic rod (704), a scraper (706), and a push block (708), the scraper (706) is slidably connected to the right side of the connecting frame (705), the fixed end of the hydraulic telescopic rod (704) is fixedly connected to the inside of the supporting column (703), and the push block (708) is fixedly connected to the telescopic end of the hydraulic telescopic rod (704).

2. The welding device for processing of metal steel structures according to claim 1, characterized by the fact that: The brushing mechanism (4) further comprises a gear cover (408), and the gear cover (408) is fixedly connected to the outer wall between the two supporting columns (406).

3. The welding device for processing of metal steel structures according to claim 2, characterized by the fact that: The gear (402) is located inside the gear cover (408), and the guard plate (407) is located on the top of the rotary brush (405).

4. The welding device for processing of metal steel structures according to claim 3, characterized by the fact that: The clamping mechanism (7) further comprises a supporting plate (707), and the supporting plate (707) is fixedly connected between the two hydraulic telescopic rods (704).

5. The welding apparatus for metal steel structure fabrication of claim 4, wherein: The clamping mechanism (7) further comprises a connecting plate (709) and a movable clamping block (710), the shaft center of the hydraulic telescopic rod (704) is located on the surface of the connecting plate (709), the connecting plate (709) is fixedly connected to the front of the rotating disc (702), and the movable clamping block (710) is fixedly connected to the upper and lower ends of the connecting plate (709).

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