Steel structure welding seam detection component

Abstract

The utility model discloses a steel structure welding seam detection component which comprises an ultrasonic flaw detector, a base support used for installing the ultrasonic flaw detector and an adjusting mechanism arranged on the base support. The base support comprises two metal supporting rods which are arranged side by side, short clamping rods are arranged at the two ends of each metal supporting rod respectively, walking wheels are arranged on the short clamping rods, and each metal supporting rod comprises a main rod body and an auxiliary rod body which are spliced with each other; the adjusting mechanism is installed between the two metal rods. According to the characteristics of the steel structure, the accuracy of ultrasonic flaw detection can be improved through automatic detection of the robot, and the manual operation intensity is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of weld inspection tools, specifically relating to a steel structure weld inspection component. Background Technology

[0002] Steel structures are load-bearing structures made by connecting and fixing steel components of various shapes using steel plates and sections through welding, bolting, riveting, or other methods. They are mainly composed of steel beams, columns, trusses, and other components made of steel sections and plates, which form a stable structure through specific connection methods.

[0003] Welding is one of the key processes in steel structure manufacturing, and its quality directly affects the safety and durability of the steel structure. Defects in the weld, such as cracks, incomplete penetration, and slag inclusions, can all lead to structural failure or accidents. Therefore, rigorous inspection of the welds is essential to ensure the quality of steel structure projects.

[0004] In existing technologies, one approach is to inspect the weld surface with the naked eye or using tools such as magnifying glasses and cameras to detect defects such as cracks, porosity, weld beads, and slag inclusions. Another approach is to use ultrasonic testing, which utilizes the propagation characteristics of ultrasonic waves in materials to detect internal weld defects such as cracks, incomplete penetration, and slag inclusions.

[0005] However, existing ultrasonic testing technology requires manual operation to repeatedly inspect the weld surface by holding the probe. This manual operation has large errors, is prone to omissions, and is physically demanding. Utility Model Content

[0006] The purpose of this invention is to provide a steel structure weld inspection component that, based on the characteristics of steel structures, uses robotic automated inspection to improve the accuracy of ultrasonic flaw detection and reduce the intensity of manual operation.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A steel structure weld inspection component includes an ultrasonic flaw detector, a base bracket for mounting the ultrasonic flaw detector, and an adjustment mechanism mounted on the base bracket. The base bracket includes two parallel metal support rods, with clamping short rods at both ends of each metal support rod and wheels mounted on the clamping short rods. Each metal support rod includes a main rod and a secondary rod that are spliced ​​together. The adjustment mechanism is installed between the two metal rods.

[0009] Furthermore, the adjustment mechanism includes a base, a walking mechanism mounted on the base, and a probe fixing bracket mounted on the walking mechanism.

[0010] Furthermore, the walking mechanism includes a translation mechanism and a lifting cylinder, and the probe fixing bracket is installed at the end of the lifting cylinder.

[0011] Furthermore, the translation mechanism includes a drive motor, a translation rack, and a translation gear connected to the output shaft of the drive motor.

[0012] Furthermore, one end of the main rod is provided with a connecting external thread.

[0013] Furthermore, one end of the auxiliary rod is hollow and has an internal thread for connection.

[0014] Compared with the prior art, the advantages of this utility model are as follows: First, based on the special characteristics of ultrasonic testing of steel structures, this utility model specifically proposes an inspection component that can move within the tank of the steel structure. By adjusting the base support to match the size of the tank, the base support is clamped within the tank. By moving the base support to a suitable position, the adjustment mechanism is controlled to perform flaw detection on both sides of the weld, effectively finding out whether there are any defects in the weld. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of the steel structure weld inspection component provided by this utility model.

[0017] Figure 2 This is a schematic diagram of the adjustment mechanism of the steel structure weld inspection component provided by this utility model.

[0018] Reference numerals in the attached diagram: 1. Metal support rod; 2. Clamping rod; 3. Traveling wheel; 4. Adjustment mechanism; 5. Probe fixing bracket; 6. Lifting cylinder; 7. Translation gear; 8. Drive motor; 9. Translation rack. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0023] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0026] like Figure 1-Figure 2As shown, a steel structure weld inspection component includes an ultrasonic flaw detector, a base bracket for mounting the ultrasonic flaw detector, and an adjustment mechanism 4 mounted on the base bracket. The base bracket includes two parallel metal support rods 1, with clamping short rods 2 at both ends of each metal support rod 1, and wheels 3 mounted on the clamping short rods 2. Each metal support rod 1 includes a main rod body and a secondary rod body that are spliced ​​together. The adjustment mechanism 4 is installed between the two metal rods.

[0027] Compared to existing technologies, the current method of using ultrasonic flaw detectors to inspect welded workpieces requires manual operation. The probe is held manually and continuously scanned both sides of the weld, relying on the ultrasonic echoes to indicate any defects. This is labor-intensive, requiring constant repetitive scanning, and prone to missing points. In this invention, the ultrasonic flaw detector is fixed to a base support, which can be adjusted to be clamped into a steel channel within the steel structure. By moving the base support to a designated position and controlling the adjustment mechanism 4, the flaw detector head continuously scans both sides of the weld. This mechanical approach significantly reduces the labor intensity.

[0028] Here, the base support can be manually pushed, or a drive mechanism can be added to control the movement of the mobile base using a motor. If automatic movement is required, a differential controller needs to be added, and an output control shaft needs to be added between the three traveling wheels. This type of control method is a relatively common way to control a mobile cart with electric drive, and it is a common mechanical structure in existing technology. Here, we are only providing a feasible technical solution and will not describe it in detail.

[0029] The adjustment mechanism 4 includes a base, a traveling mechanism mounted on the base, and a probe fixing bracket 5 mounted on the traveling mechanism. The traveling mechanism includes a translation mechanism and a lifting cylinder 6, with the probe fixing bracket 5 mounted at the end of the lifting cylinder 6. The translation mechanism includes a drive motor, a translation rack, and a translation gear 7 connected to the output shaft of the drive motor. The adjustment mechanism 4 controls the fixing bracket of the probe, on which the ultrasonic detector is mounted, to move to both sides of the weld seam requiring inspection, effectively detecting both sides of the weld seam. Further improvements can be made, such as image recognition. Image recognition can enhance automation functions, automatically identifying weld seam positions, etc. The image recognition here can directly utilize commercially available mature visualization systems, which will not be elaborated upon further.

[0030] The main rod has an external thread at one end. The secondary rod has a hollow end with an internal thread at one end. By adjusting the connection length between the main rod and the secondary rod, the length of the metal support rod 1 can be adjusted, thus making it suitable for steel structures of various sizes.

[0031] In practical use, for the welding of steel structure components, the weld seams need to be inspected. According to NB / T47013-2015, the standard for non-destructive testing of pressure equipment, K-value probes should be used to inspect both sides of the weld using the direct beam method and the single reflection method. The scanning amplitude should reach 1.25P. During flaw detection, a rough scan should first be performed on both sides of the weld to find the defect location, and then a careful identification should be performed to distinguish between genuine and false defects. Finally, the defect should be accurately located and quantified.

[0032] The detection component provided by this utility model primarily reduces the workload of coarse scanning. The base support is manually pushed to a designated position, and the lifting cylinder 6 is controlled to bring the probe fixing bracket 5 close to both sides of the weld seam to be inspected. Then, the drive motor 8 is controlled to rotate forward and backward to move the translation mechanism, thereby controlling the probe fixing bracket 5 to move translatably along both sides of the weld seam. This allows for a coarse scan of the weld seam surface to detect any defects. If defects are found, they are then manually identified as genuine or false defects. Overall, this effectively reduces the manual labor intensity and improves the inspection efficiency of steel structure weld seams.

[0033] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A component for inspecting weld seams in steel structures, comprising an ultrasonic flaw detector, characterized in that: It also includes a base bracket for mounting an ultrasonic flaw detector and an adjustment mechanism (4) set on the base bracket; the base bracket includes two metal support rods (1) arranged side by side, and clamping short rods (2) are set at both ends of the metal support rods (1), and a traveling wheel (3) is set on the clamping short rods (2); the metal support rods (1) include a main rod body and a secondary rod body spliced ​​together; the adjustment mechanism (4) is installed between the two metal rods; The adjustment mechanism (4) includes a base, a walking mechanism mounted on the base, and a probe fixing bracket (5) mounted on the walking mechanism; The walking mechanism includes a translation mechanism and a lifting cylinder (6), and the probe fixing bracket (5) is installed at the end of the lifting cylinder (6); The translation mechanism includes a drive motor (8), a translation rack, and a translation gear (7) connected to the output shaft of the drive motor (8).

2. The steel structure weld inspection component according to claim 1, characterized in that: The main rod has an external thread at one end.

3. The steel structure weld inspection component according to claim 1, characterized in that: One end of the auxiliary rod is hollow and has an internal thread for connection.

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