Steel structure welding seam detection device

Abstract

The invention relates to the technical field of steel structure welding seams, in particular to a steel structure welding seam detection device which comprises a base, a conveying frame is fixedly connected to the top of the base, a conveying assembly is installed in the conveying frame, and a rotary detection assembly for driving a steel structure with an irregular shape to rotate and detecting a welding seam is installed on the conveying frame; the rotating detection assembly comprises an outer frame fixedly connected with the top of the conveying frame, a detection probe is installed on one side of the outer frame, a driving assembly which adjusts the supporting height after being stressed and drives the steel structure to rotate is installed at the bottom of the inner side of the conveying frame, and a polishing assembly fixed to the conveying frame is arranged below the driving assembly. An arc-shaped plate is installed at the bottom of the inner side of the outer frame, the driving assembly comprises an air cylinder installed on the conveying frame, and the output end of the air cylinder is fixedly connected with a lifting frame. The problem that weld joints of steel structures with different shapes are difficult to detect due to the fact that existing steel structure weld joint detection equipment is difficult to drive the steel structures with corners to rotate is solved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure welds, and in particular to a steel structure weld detection device. Background Art

[0002] The steel structure is mainly composed of beams, steel columns, steel trusses and other components made of steel sections and steel plates, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components or parts are usually connected by welds, bolts or rivets. After searching, the Chinese invention patent with application number CN202410592079.5 discloses a steel structure weld detection device, which is detected by placing the welded tubular steel structure on a V-shaped base and driving it to rotate through a rolling power assembly.

[0003] The above-mentioned device needs to drive the steel structure to rotate in order to detect different angles of the steel structure, but it is only convenient to drive the tubular steel structure to rotate. For steel structures with irregular shapes, especially steel structures with edges and corners, due to the obstruction of the corners, the steel structure is easily stuck during rotation and is not convenient to rotate. Therefore, it is difficult to detect the welds of steel structures with different shapes. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a steel structure weld detection device, which solves the problem that the existing steel structure weld detection equipment is difficult to drive the steel structure with corners to rotate, resulting in difficulty in detecting welds of steel structures with different shapes.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel structure weld detection device, comprising a base, a conveying frame is fixedly connected to the top of the base, a conveying assembly is installed inside the conveying frame, and a rotating detection assembly is installed on the conveying frame to drive the irregular-shaped steel structure to rotate and detect the weld;

[0006] The rotation detection component includes an outer frame fixedly connected to the top of the conveying frame, a detection probe is installed on one side of the outer frame, a driving component is installed on the inner bottom of the conveying frame for adjusting the support height after being subjected to force and driving the steel structure to rotate, a polishing component fixed to the conveying frame is provided below the driving component, and an arc plate is installed on the inner bottom of the outer frame.

[0007] Preferably, the driving assembly includes a cylinder installed on the conveying frame, the output end of the cylinder extends to the inside of the conveying frame and is fixedly connected to the lifting frame, an active roller with an anti-slip groove on the outer side is rotatably connected between the two sides of the lifting frame, a connector is installed on the outside of the rotating shaft of the active roller, the end of the connector away from the active roller is connected to the driven roller, an elastic plate is fixedly connected between the bottom of the connector and the lifting frame, and a motor assembly for driving the active roller and the driven roller to rotate synchronously is installed inside the conveying frame.

[0008] Preferably, the motor assembly includes a driving motor fixed to the inner bottom of the lifting frame, a belt 1 is connected between the driving motor and the active roller, and a belt 2 is connected between the active roller and the driven roller.

[0009] Preferably, the connector includes a ring 1 sleeved on the outside of the rotating shaft of the active roller, and a ring 2 sleeved on the outside of the rotating shaft of the driven roller, a tilting rod is fixedly connected between the rings 1 and 2, and the elastic plate is installed at the bottom of the tilting rod.

[0010] Preferably, the polishing assembly includes a longitudinal frame fixedly connected to the inner bottom of the conveying frame, a brush is fixedly connected to the top of the longitudinal frame, a rotating rod with both ends movably extending to the outside is provided inside the longitudinal frame, and a lever is fixedly connected between the two ends of the rotating rod.

[0011] Preferably, a torsion spring is fixedly connected between the rotating rod and the inner wall of the longitudinal frame, a magnet block is slidably connected between the two sides of the inner wall of the longitudinal frame, a notch is opened on the top of the longitudinal frame, a traction rope wound around the outside of the rotating rod is fixedly connected between the rotating rod and the magnet block, and the driven roller is made of magnetic metal.

[0012] Preferably, the conveying assembly comprises two rollers installed inside a conveying frame, two conveying belts are sleeved outside the rollers, and a driving motor for driving one of the rollers to rotate is installed on one side of the conveying frame.

[0013] Preferably, a longitudinal rod fixedly connected to the conveying frame is provided between the two rollers, one side of the longitudinal rod is a plane, a lifting cylinder is sleeved on the top of the longitudinal rod, and one side of the lifting cylinder is provided with a bolt with one end movably extending into the interior thereof.

[0014] Preferably, a cross bar penetrating through the plurality of lifting cylinders is provided on one side of the lifting cylinder, and both ends of the cross bar are fixedly connected with balls.

[0015] Compared with the prior art, the present invention provides a steel structure weld detection device, which has the following beneficial effects:

[0016] 1. The rotating detection component can drive the steel structure with corners to rotate, which is convenient for detecting the welds of steel structures with different shapes. At the same time, the detection can be carried out during the transportation of the steel structure, which reduces the loading and unloading work before and after the detection and facilitates the continuous detection of the steel structure.

[0017] 2. Through the setting of the driving assembly, the driven roller always fits the position of different thickness of the steel structure, and flexibly drops at the corner of the steel structure to reduce the obstruction to the steel structure, so that the active roller and the driven roller can exert force on the irregular steel structure, thereby driving the irregular steel structure to rotate, and facilitating the detection of welds at different angles of the irregular steel structure.

[0018] 3. Through the connector, the driven roller is raised and lowered with the active roller as the center and rotates at a fixed radius. The driven roller always maintains a fixed distance from the active roller, so that the belt 2 can always work between the active roller and the driven roller.

[0019] 4. Through the polishing assembly, the driven roller will continuously rub against the brush during its rotation, and the continuous friction of the brush will be used to improve the smoothness of the surface of the driven roller, thereby preventing the surface of the driven roller from being scratched on the steel structure due to its rough surface before and during use.

[0020] 5. By setting the torsion spring, magnet block and lever, the irregular steel structure can be used to squeeze the driven roller when it rotates, so as to drive the lever to comb the brush neatly, and prevent the messy brush from scratching the surface of the driven roller when rubbing against the driven roller.

[0021] 6. The lifting cylinder can be set up to support the uneven lower surface of the steel structure. The lifting cylinder can be raised to fit the depression on the lower surface of the steel structure, and the protruding position on the lower surface of the steel structure can also be moved to the gap between the conveyor belt and the lifting cylinder, which can improve the stability of the uneven steel structure during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the rotation detection assembly of the present invention;

[0025] Figure 3 A partial cutaway view of a drive assembly of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the lifting frame of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the polishing assembly of the present invention;

[0028] Figure 6 is an internal cutaway view of the polishing assembly of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the outer frame of the present invention;

[0030] Figure 8 It is a schematic structural diagram of the longitudinal rod and the lifting cylinder of the present invention.

[0031] In the figure: 1. base; 2. conveying frame; 3. conveying assembly; 4. rotating detection assembly; 41. outer frame; 42. detection probe; 43. driving assembly; 431. cylinder; 432. lifting frame; 433. active roller; 434. connector; 4341. ring one; 4342. ring two; 4343. tilting rod; 435. driven roller; 436. elastic plate; 437. motor assembly; 44. polishing assembly; 441. longitudinal frame; 442. brush; 443. rotating rod; 444. lever; 45. arc plate; 5. torsion spring; 6. magnet block; 7. traction rope; 8. longitudinal rod; 9. lifting cylinder; 10. bolt; 11. cross bar; 12. ball. DETAILED DESCRIPTION

[0032] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0033] Embodiment 1

[0034] In order to facilitate the rotation of irregular steel structures, so as to detect welds at different angles of irregular steel structures, refer to Figure 1-Figure 4 As an embodiment of the present invention, a steel structure weld detection device is proposed, which uses a liftable structure to fit the positions of different rotation radii of an irregularly shaped steel structure when squeezed, thereby achieving the purpose of promoting the positions of different rotation radii to rotate, including a base 1, a conveying frame 2 is fixedly connected to the top of the base 1, a conveying assembly 3 is installed inside the conveying frame 2, and a rotating detection assembly 4 is installed on the conveying frame 2 to drive the irregularly shaped steel structure to rotate and detect the weld. When in use, the steel structure is placed on the conveying assembly 3, the conveying assembly 3 transports the weld position of the steel structure to the rotating detection assembly 4, and then the rotating detection assembly 4 drives the irregular steel structure to rotate, and performs weld detection on different angles of the steel structure during the rotation process. After the detection is completed, the rotating detection assembly 4 is separated from the steel structure, and the conveying assembly 3 continues to transport the steel structure forward, which can drive the steel structure with a corner to rotate, so as to facilitate the detection of welds of steel structures with different shapes. At the same time, the detection is performed during the transportation of the steel structure, which reduces the loading and unloading work before and after the detection, and facilitates the continuous detection of the steel structure.

[0035] In order to achieve the purpose of driving irregular steel structures, especially those with corners, to rotate and perform detection at different angles, the present embodiment proposes a rotation detection component 4, which includes an outer frame 41 fixedly connected to the top of the conveying frame 2, a detection probe 42 is installed on one side of the outer frame 41, and a driving component 43 is installed on the inner bottom of the conveying frame 2 to adjust the support height after being subjected to force and drive the steel structure to rotate, a polishing component 44 fixed to the conveying frame 2 is provided below the driving component 43, and an arc plate 45 is installed on the inner bottom of the outer frame 41. When in use, the steel structure is conveyed to the top of the driving component 43 by the conveying component 3, and the driving component 43 first The steel structure is pushed up until the top of the steel structure contacts the arc plate 45, and then the driving component 43 drives the bottom of the steel structure to rotate, and the top of the steel structure slides along the arc surface of the arc plate 45. The detection probe 42 detects the weld of the steel structure in the direction of the detection probe 42 during the rotation process, which is convenient for driving the irregular steel structure to rotate, and then the weld of the steel structure during the rotation process is detected to reduce the obstruction to the irregular steel structure during the rotation process. After the weld detection of the steel structure is completed, the driving component 43 descends, so that the steel structure falls back onto the conveying component 3, and then the conveying component 3 drives the steel structure to continue to move forward.

[0036] In order to achieve the purpose of driving the steel structure to rise and fall and rotate, refer to Figure 3 , this embodiment proposes a driving component 43, the driving component 43 includes a cylinder 431 installed on the conveying frame 2, the output end of the cylinder 431 extends to the inside of the conveying frame 2 and is fixedly connected to a lifting frame 432, an active roller 433 with an anti-slip groove on the outside is rotatably connected between the two sides of the lifting frame 432, a connector 434 is installed on the outside of the rotating shaft of the active roller 433, and a driven roller 435 is connected to the end of the connector 434 away from the active roller 433, and an elastic plate 436 is fixedly connected between the bottom of the connector 434 and the lifting frame 432, and a motor component 437 is installed inside the conveying frame 2 to drive the active roller 433 and the driven roller 435 to rotate synchronously. When in use, when the steel structure moves to the lifting frame 43 along with the conveying component 3 2, the cylinder 431 pushes the lifting frame 432 to rise, thereby driving the active roller 433 and the driven roller 435 to rise, and the active roller 433 and the driven roller 435 push the steel structure above them to rise until the top of the steel structure is close to the bottom of the arc plate 45. In this process, the gravity of the steel structure pushes the driven roller 435 to drop a distance, squeezing and bending the elastic plate 436. Due to the limitation of the connector 434, when the driven roller 435 is lifted or lowered, it always rotates with the active roller 433 as the center and the connector 434 as the radius, so that the distance between the driven roller 435 and the active roller 433 is always kept unchanged when the driven roller 435 is lifted or lowered, and the motor assembly 437 can drive the active roller 433 and the driven roller 435 to rotate through the belt.

[0037] Then, the motor assembly 437 drives the active roller 433 and the driven roller 435 to rotate, with the narrowest thickness of the steel structure as the short axis and the longest thickness as the long axis. When the short axis moves between the active roller 433 and the arc plate 45, the thrust of the steel structure on the driven roller 435 is small, and the driven roller 435 is supported at the highest point by the elastic plate 436 and basically does not drop; when the long axis moves between the active roller 433 and the arc plate 45, the steel structure will push the driven roller 435 to drop, so that the distance between the driven roller 435 and the arc plate 45 can accommodate the steel structure. When the driven roller 435 drops, it squeezes and bends the elastic plate 436, so that the driven roller 435 always fits the position of different thicknesses of the steel structure, and flexibly drops at the corners of the steel structure to reduce the obstruction to the steel structure, so that the active roller 433 and the driven roller 435 can exert force on the irregular-shaped steel structure, thereby driving the irregular steel structure to rotate, and facilitating the detection of welds of different angles of the irregular steel structure.

[0038] In order to drive the active roller 433 and the driven roller 435 to rotate, and then drive the steel structure on the active roller 433 and the driven roller 435 to rotate, refer to Figure 3 In this embodiment, a motor assembly 437 is provided. The motor assembly 437 includes a driving motor fixed to the inner bottom of the lifting frame 432. A belt 1 is connected between the driving motor and the active roller 433, and a belt 2 is connected between the active roller 433 and the driven roller 435. When in use, after the driving motor is started, the active roller 433 is driven to rotate through the belt 1, and the active roller 433 drives the driven roller 435 to rotate through the belt 2. After the active roller 433 and the driven roller 435 rotate, they simultaneously push the steel structure to rotate from two positions below the steel structure, thereby reducing the possibility of slipping when pushing the steel structure to rotate.

[0039] Since the driven roller 435 is affected by the shape of the steel structure, when the position with a larger thickness of the steel structure moves between the driven roller 435 and the arc plate 45, the driven roller 435 will be pushed down, and the driven roller 435 and the active roller 433 are driven by the belt 2. In order to ensure that the driven roller 435 can always be driven by the active roller 433 through the belt 2 when it is lifted to different heights, refer to Figure 4In this embodiment, a connector 434 is provided to limit the position between the active roller 433 and the driven roller 435. The connector 434 includes a ring 1 4341 which is sleeved on the outside of the rotating shaft of the active roller 433, and a ring 2 4342 which is sleeved on the outside of the rotating shaft of the driven roller 435. A tilting rod 4343 is fixedly connected between the ring 1 4341 and the ring 2 4342. The elastic plate 436 is installed at the bottom of the tilting rod 4343. When in use, when the driven roller 435 is lifted or lowered, the ring 2 4342 is driven to move, and the ring 2 4342 drives the tilting rod 4343 to rotate along the ring 1 4341, so that the driven roller 435 is centered on the active roller 433 when lifted or lowered, and rotates at a fixed radius. The driven roller 435 always maintains a fixed distance from the active roller 433, so that the belt 2 can always work between the active roller 433 and the driven roller 435.

[0040] Embodiment 2

[0041] When the surfaces of the active roller 433 and the driven roller 435 are not smooth, it is easy to scratch the steel structure pressed by them. Whether the surfaces of the active roller 433 and the driven roller 435 are not smooth when they are used due to process problems or due to the pressing of the steel structure during use, the rough parts need to be polished in time. Figure 1-Figure 6 On the basis of the first embodiment, the polishing assembly 44 comprises a longitudinal frame 441 fixedly connected to the inner bottom of the conveying frame 2, a brush 442 is fixedly connected to the top of the longitudinal frame 441, a rotating rod 443 is provided inside the longitudinal frame 441, both ends of which are movably extended to the outside thereof, and a lever 444 is fixedly connected between the two ends of the rotating rod 443. When in use, the active roller 433 adopts a high-quality roller with better material and stricter standards, and the driven roller 435 is connected to the active roller 433 through the connector 434, so that a relatively low-standard roller can be used for polishing. The driven roller 435 is replaceable, so that the possibility of causing the surface of the active roller 433 to be rough during use is small. As for the driven roller 435, the weight of the steel structure will push the driven roller 435 down, causing the driven roller 435 to squeeze and bend the brush 442. In this way, during the rotation of the driven roller 435, it will continuously rub against the brush 442, and the continuous friction force of the brush 442 will be used to improve the smoothness of the surface of the driven roller 435, thereby preventing the surface of the driven roller 435 from being scratched on the surface of the steel structure due to its rough surface before and during use.

[0042] Since the driven roller 435 will push the brush 442 in different directions when it descends, when the messy brush contacts the rotating driven roller 435, it is not only difficult to polish the surface of the driven roller 435 smoothly, but also easy to scratch the originally smooth driven roller 435. In order to improve the neatness of the brush 442, refer to Figure 6A torsion spring 5 is fixedly connected between the rotating rod 443 and the inner wall of the longitudinal frame 441, a magnet block 6 is slidably connected between the two sides of the inner wall of the longitudinal frame 441, a notch is provided at the top of the longitudinal frame 441, a traction rope 7 wound around the outside of the rotating rod 443 is fixedly connected between the rotating rod 443 and the magnet block 6, the driven roller 435 is made of magnetic metal, the torsion spring 5 drives the rotating rod 443 to rotate several circles, the traction rope 7 is wound around the rotating rod 443, the magnet block 6 slides to the bottom of the longitudinal frame 441, when the steel structure does not squeeze the driven roller 435 down, because the elastic plate 436 pushes the driven roller 435 to the highest point, the distance between the magnet block 6 and the driven roller 435 is far, the magnetic force between the magnet block 6 and the driven roller 435 is small, and it is impossible to overcome the gravity of the magnet block 6 to drive the magnet block 6 to rise;

[0043] When the steel structure squeezes the driven roller 435 downward, the distance between the driven roller 435 and the magnet block 6 is shortened, resulting in an increase in the magnetic force between the magnet block 6 and the driven roller 435. The magnetic force causes the magnet block 6 to overcome its own gravity and rise, thereby pulling the traction rope 7 off the rotating rod 443, driving the rotating rod 443 to rotate and squeeze the torsion spring 5 to bend. The rotating rod 443 drives the lever 444 to rotate until the lever 444 rotates from one side of the longitudinal frame 441 to the other side, pushing the brush 442 to move to one side and bend. After the brush 442 is pushed to one side, the originally messy part The driven roller 435 is combed neatly until the steel structure no longer squeezes the driven roller 435, the elastic plate 436 pushes the driven roller 435 to rise to the starting point, the magnet block 6 drops to the starting point, and the torsion spring 5 also drives the rotating rod 443 to rotate and then rewind the traction rope 7 on the rotating rod 443, and the rotating rod 443 drives the lever 444 to move to the starting point, which can utilize the irregular steel structure to squeeze the driven roller 435 when rotating, and drive the lever 444 to comb the brush 442 neatly, so as to prevent the messy brush 442 from scratching the surface of the driven roller 435 when rubbing against the driven roller 435.

[0044] Embodiment 3

[0045] Since a liftable drive assembly 43 needs to be installed in the middle of the conveying assembly 3, the conveying belt of the conveying assembly 3 needs to be vacant in the middle. In order to improve the supporting force of the vacant position on the steel structure, refer to Figure 1-Figure 8 On the basis of the first embodiment, the conveying assembly 3 includes two rollers installed inside the conveying frame 2, two conveying belts are sleeved on the outside of the rollers, a driving motor for driving one of the rollers to rotate is installed on one side of the conveying frame 2, a longitudinal rod 8 fixedly connected to the conveying frame 2 is provided between the two rollers, one side of the longitudinal rod 8 is a plane, a lifting cylinder 9 is sleeved on the top of the longitudinal rod 8, one side of the lifting cylinder 9 is provided with a bolt 10 with one end movably extending into the inside thereof, and one side of the lifting cylinder 9 is provided with a cross bar 11 passing through multiple lifting cylinders 9, and both ends of the cross bar 11 are fixedly connected to balls 12.

[0046] When in use, the steel structure is placed on the conveyor belt, the two sides of the steel structure are supported by the conveyor belt, and the middle of the steel structure is supported by the lifting cylinder 9. When the conveyor belt drives the steel structure to move, its lower surface slides along the lifting cylinder 9. Moreover, when the bottom of the steel structure is uneven, the protruding position can be moved to the vacant position between the conveyor belt and the lifting cylinder 9, and for the concave position at the bottom of the steel structure, the lifting cylinder 9 can be raised along the longitudinal rod 8, and the cross bar 11 ensures that a row of lifting cylinders 9 can be raised to the same height. Then the bolt 10 is rotated to fix the lifting cylinder 9, so that the lifting cylinder 9 can be pressed against the concave position at the bottom of the steel structure, and the lower surface of the uneven steel structure can be supported. The lifting cylinder 9 can be raised to fit the concave position of the lower surface of the steel structure, and the protruding position of the lower surface of the steel structure can also be moved to the gap between the conveyor belt and the lifting cylinder 9, which can improve the stability of the uneven steel structure during transportation.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure weld detection device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a conveying frame (2), a conveying assembly (3) is installed inside the conveying frame (2), and a rotating detection assembly (4) is installed on the conveying frame (2) for driving the irregularly shaped steel structure to rotate and detect the weld; The rotation detection component (4) comprises an outer frame (41) fixedly connected to the top of the conveying frame (2); a detection probe (42) is installed on one side of the outer frame (41); a driving component (43) is installed on the inner bottom of the conveying frame (2) for adjusting the support height after being subjected to force and driving the steel structure to rotate; a polishing component (44) fixed to the conveying frame (2) is provided below the driving component (43); and an arc plate (45) is installed on the inner bottom of the outer frame (41).

2. A steel structure weld detection device according to claim 1, characterized in that: The driving assembly (43) comprises a cylinder (431) mounted on the conveying frame (2); the output end of the cylinder (431) extends into the interior of the conveying frame (2) and is fixedly connected to a lifting frame (432); an active roller (433) with an anti-slip groove on the outer side is rotatably connected between the two sides of the lifting frame (432); a connector (434) is mounted on the outside of the rotating shaft of the active roller (433); an end of the connector (434) away from the active roller (433) is connected to a driven roller (435); an elastic plate (436) is fixedly connected between the bottom of the connector (434) and the lifting frame (432); and a motor assembly (437) is mounted inside the conveying frame (2) for driving the active roller (433) and the driven roller (435) to rotate synchronously.

3. A steel structure weld detection device according to claim 2, characterized in that: The motor assembly (437) comprises a driving motor fixed to the inner bottom of the lifting frame (432), a belt 1 is connected between the driving motor and the active roller (433), and a belt 2 is connected between the active roller (433) and the driven roller (435).

4. A steel structure weld detection device according to claim 2, characterized in that: The connector (434) comprises a first circular ring (4341) sleeved on the outside of the rotating shaft of the active roller (433), and a second circular ring (4342) sleeved on the outside of the rotating shaft of the driven roller (435), a tilting rod (4343) is fixedly connected between the first circular ring (4341) and the second circular ring (4342), and an elastic plate (436) is installed at the bottom of the tilting rod (4343).

5. A steel structure weld detection device according to claim 2, characterized in that: The polishing assembly (44) comprises a longitudinal frame (441) fixedly connected to the inner bottom of the conveying frame (2); a brush (442) is fixedly connected to the top of the longitudinal frame (441); a rotating rod (443) is provided inside the longitudinal frame (441) with both ends movably extending to the outside thereof; and a lever (444) is fixedly connected between the two ends of the rotating rod (443).

6. A steel structure weld detection device according to claim 5, characterized in that: A torsion spring (5) is fixedly connected between the rotating rod (443) and the inner wall of the longitudinal frame (441); a magnet block (6) is slidably connected between the two sides of the inner wall of the longitudinal frame (441); a notch is provided at the top of the longitudinal frame (441); a traction rope (7) wound around the outside of the rotating rod (443) is fixedly connected between the rotating rod (443) and the magnet block (6); and the driven roller (435) is made of a magnetic metal material.

7. A steel structure weld detection device according to claim 1, characterized in that: The conveying assembly (3) comprises two rollers installed inside the conveying frame (2), two conveying belts are sleeved outside the rollers, and a driving motor for driving one of the rollers to rotate is installed on one side of the conveying frame (2).

8. A steel structure weld detection device according to claim 7, characterized in that: A longitudinal rod (8) fixedly connected to the conveying frame (2) is provided between the two rollers, one side of the longitudinal rod (8) is a plane, a lifting cylinder (9) is sleeved on the top of the longitudinal rod (8), and one side of the lifting cylinder (9) is provided with a bolt (10) with one end movably extending into the interior thereof.

9. A steel structure weld detection device according to claim 8, characterized in that: A cross bar (11) penetrating through the plurality of lifting cylinders (9) is provided on one side of the lifting cylinder (9), and round balls (12) are fixedly connected to both ends of the cross bar (11).

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