Multi-angle detection flat plate welding seam X-ray detector

Abstract

The utility model discloses a flat plate weld X-ray flaw detector of multi angle detection belongs to the welding seam nondestructive testing equipment technical field, and its technical scheme main points include base, the four corners of base bottom all have the universal wheel of bolted connection, the top of base is provided with work piece placing plate, and the present application passes through setting work piece placing plate, flaw detection subassembly and imaging structure, and effectively solve the existing equipment fixed angle detection blind area and manual regulation poor accuracy, low efficiency problem: work piece placing plate can steady load the flat plate weld work piece of detection, ensure that the relative fixation of the weld position, in flaw detection subassembly, the angle plate can rotate around the axle, and cooperate adjusting rod can easily adjust X ray emission head angle, and the pointer and angle scale groove accurate correspondence, avoid angle regulation to rely on experience, solve the problem that manual regulation accuracy is difficult to control, and through locking knob fixed after angle regulation, do not need to repeat calibration, and single regulation time consumption is greatly shortened, and indirectly reduce detection time.

Description

Technical Field

[0001] This utility model relates to the technical field of non-destructive testing equipment for welds, and in particular to an X-ray flaw detector for flat welds that can be inspected from multiple angles. Background Technology

[0002] As the core connecting structure of industrial components, the internal quality of flat welds directly determines the load-bearing capacity and safety of the components. Therefore, non-destructive testing with X-ray flaw detectors is required. By utilizing the attenuation difference of X-rays when penetrating the weld, an internal image of the weld can be formed, thereby determining the defect situation.

[0003] However, most existing X-ray flaw detectors for flat welds adopt a fixed-angle detection design, with the X-ray emission source and imaging components fixed on the same horizontal line. This allows for vertical, direct inspection of the weld. In actual inspections, inclined structural areas such as the "side fusion line" and "root of corner weld" of flat welds cannot be fully penetrated by vertically incident X-rays, easily creating blind spots. This leads to missed defects such as microcracks and incomplete penetration, posing safety hazards. Some technologies attempt to solve this problem by manually adjusting the equipment angle, but the adjustment process relies on the operator's experience, taking 5-8 minutes per inspection, resulting in low efficiency and difficulty in controlling angle accuracy. This leads to inconsistent inspection standards at different locations of the same weld, affecting the accuracy of defect judgment.

[0004] To address this, a multi-angle X-ray flaw detector for flat welds is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a multi-angle X-ray flaw detector for flat welds. This addresses the problem that existing X-ray flaw detectors for flat welds often employ a fixed-angle detection design, where the X-ray emission source and imaging components are fixed on the same horizontal line. This allows for only vertical, direct inspection of the weld. However, in actual inspections, inclined structural areas such as the "side fusion line" and "root of corner weld" of flat welds are prone to blind spots due to insufficient penetration by vertically incident X-rays. This leads to missed defects such as microcracks and incomplete penetration, posing safety hazards. Some technologies attempt to solve this problem by manually adjusting the equipment angle, but this process relies on the operator's experience, takes 5-8 minutes per inspection, is inefficient, and makes it difficult to control the angle accuracy. This results in inconsistent inspection standards at different locations of the same weld, affecting the accuracy of defect judgment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle X-ray flaw detector for flat welds, comprising a base, universal wheels bolted to the four corners of the bottom of the base, a workpiece placement plate provided on the top of the base, a flaw detection component provided on the rear side of the top of the base, and an imaging structure provided on the front side of the top of the base.

[0007] The flaw detection assembly includes a fixed frame welded to the rear top of the base. An angle adjustment plate is installed inside the fixed frame. A shaft is rotatably connected to the right side of the fixed frame. The left side of the shaft passes through the left side of the angle adjustment plate and the inner side of the fixed frame. An adjustment rod is welded to the rear side of the angle adjustment plate. A locking knob is threaded to the left side of the shaft. The inner side of the locking knob contacts the outer side of the fixed frame. An angle scale groove is opened on the left side of the fixed frame. A pointer is welded to the left side of the angle adjustment plate. The pointer is rotatably connected inside the angle scale groove. An X-ray emission head is fixedly connected to the front side of the angle adjustment plate.

[0008] Preferably, the imaging structure includes an imaging frame welded to the front side of the bottom of the base, and a power switch is provided on the left side of the front side of the bottom of the base, the power switch being electrically connected to the X-ray emitting head.

[0009] Preferably, an image receiver is bolted to the rear side of the imaging frame, the image receiver is horizontally aligned with the X-ray emitting head, and the image receiver is electrically connected to a power switch.

[0010] Preferably, a display screen is bolted to the front side of the imaging frame, and the display screen is electrically connected to the image receiver and the power switch respectively.

[0011] Preferably, the bottom of the base is provided with a sliding groove, and the bottom of the workpiece placement plate is welded with a slider, which is slidably connected inside the sliding groove.

[0012] Preferably, an auxiliary rod is fixedly connected to the front side inside the slide groove, and the rear side of the auxiliary rod passes through the front side of the slider.

[0013] Preferably, positioning blocks are welded to both the front and rear sides of the top of the workpiece placement plate, and rubber pads are adhered to the inner side of the positioning blocks.

[0014] Preferably, a protective shell is bolted to the front side of the angle adjustment plate, the protective shell is located outside the X-ray emitting head, and a ray outlet is opened on the front side of the protective shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application effectively solves the problems of blind spots in fixed-angle detection and poor accuracy and low efficiency of manual adjustment in existing equipment by setting up a workpiece placement plate, flaw detection components, and imaging structure: The workpiece placement plate can stably support the flat weld workpiece to be inspected, ensuring that the weld position is relatively fixed. In the flaw detection component, the angle adjustment plate can rotate around the shaft, and the X-ray emission head angle can be easily adjusted with the adjustment rod. The pointer and the angle scale groove correspond precisely, avoiding the reliance on experience for angle adjustment and solving the problem of difficulty in controlling the accuracy of manual adjustment. At the same time, the angle is fixed by the locking knob after adjustment, eliminating the need for repeated calibration and greatly reducing the time spent on a single adjustment, indirectly reducing the detection time. The X-ray emission head can adjust the angle for inclined areas such as "side fusion line" and "root of corner weld", so that X-rays can fully penetrate, eliminating blind spots and avoiding missed detection of defects such as micro-cracks and incomplete penetration. Combined with the imaging structure, it can clearly present the internal image of the weld, ensuring the accuracy of defect judgment and eliminating safety hazards.

[0017] 2. This application incorporates a base and casters. The base provides a stable foundation for the workpiece placement plate, flaw detection components, and imaging structure, ensuring accurate installation and stable operation of each component. The casters at the four corners of the bottom allow for flexible rotation, facilitating the movement of the equipment to different testing sites without requiring it to be fixed in a specific location. This adapts to the on-site testing needs of flat weld seam workpieces in industrial settings, enhancing the flexibility of equipment use. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the X-ray flaw detector for multi-angle inspection of flat welds according to this utility model.

[0019] Figure 2 This is a structural diagram of the base of this utility model;

[0020] Figure 3 This is a structural diagram of the flaw detection component of this utility model;

[0021] Figure 4 This is a structural diagram of the imaging structure of this utility model;

[0022] Figure 5 This is a structural diagram of the protective shell of this utility model;

[0023] Figure 6 This is a structural diagram of the workpiece placement plate of this utility model.

[0024] In the diagram: 1. Base; 2. Casters; 3. Workpiece placement plate; 4. Flaw detection assembly; 401. Fixing frame; 402. Angle adjustment plate; 403. Shaft; 404. Adjusting rod; 405. Locking knob; 406. Angle scale groove; 407. Pointer; 408. X-ray emitter; 5. Imaging structure; 501. Imaging frame; 502. Power switch; 503. Image receiver; 504. Display screen; 6. Slide; 7. Slider; 8. Auxiliary rod; 9. Positioning block; 10. Protective shell; 11. X-ray exit. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6 The present invention provides the following technical solution:

[0027] A multi-angle X-ray flaw detector for flat weld seams includes a base 1, with casters 2 bolted to the four corners of the bottom of the base 1, a workpiece placement plate 3 on the top of the base 1, a flaw detection assembly 4 on the rear side of the top of the base 1, and an imaging structure 5 on the front side of the top of the base 1.

[0028] The flaw detection assembly 4 includes a fixed frame 401 welded to the rear top of the base 1. An adjustment plate 402 is provided inside the fixed frame 401. A shaft 403 is rotatably connected to the right side of the fixed frame 401. The left side of the shaft 403 passes through the left side of the adjustment plate 402 and the inner side of the fixed frame 401. An adjustment rod 404 is welded to the rear side of the adjustment plate 402. A locking knob 405 is threaded to the left side of the shaft 403. The inner side of the locking knob 405 contacts the outer side of the fixed frame 401. An angle scale groove 406 is opened on the left side of the fixed frame 401. A pointer 407 is welded to the left side of the adjustment plate 402. The pointer 407 is rotatably connected inside the angle scale groove 406. An X-ray emitting head 408 is fixedly connected to the front side of the adjustment plate 402.

[0029] In this embodiment: by setting up a base 1, casters 2, a workpiece placement plate 3, a flaw detection component 4, and an imaging structure 5, the casters 2, bolted to the four corners of the bottom of the base 1, propel the equipment to the inspection site of the flat weld workpiece. After adjusting the equipment position according to the inspection requirements, the casters 2 are locked to prevent the equipment from sliding. At this time, the base 1 provides a stable bearing foundation for the entire device, ensuring that the subsequent operation of each component is accurate and without shaking. Then, the flat weld workpiece to be inspected is placed smoothly on the workpiece placement plate 3 on the top of the base 1, and the workpiece position is adjusted so that the weld to be inspected is in the correct position. The weld seam area is located on the corresponding path between the X-ray emitting head 408 and the imaging structure 5. The workpiece placement plate 3 provides stable support for the workpiece, preventing workpiece displacement during inspection from affecting the inspection accuracy. Subsequently, based on the specific structure of the flat weld seam (such as whether there are inclined areas such as "side fusion line" or "corner weld root"), the angle of the X-ray emitting head 408 is adjusted: Hold the adjusting rod 404 welded to the rear side of the adjusting plate 402 in the flaw detection assembly 4, and apply force to make the adjusting plate 402 rotate around the shaft 403 rotatably connected to the right side inside the fixing frame 401, thus adjusting the angle. When plate 402 rotates, the pointer 407 welded to its left side will rotate synchronously within the angle scale groove 406 on the left side of the fixing frame 401. The operator can precisely control the angle of the X-ray emitting head 408 by observing the scale value pointed to by the pointer 407 (avoiding reliance on experience for adjustment) until the emitting head angle is adjusted to a suitable position that allows the X-rays to fully penetrate the weld area to be inspected. After the angle adjustment is completed, the locking knob 405 threaded to the left side of the shaft 403 is rotated to make the inner side of the locking knob 405 in close contact with the outer side of the fixing frame 401, and the friction force is used to achieve the desired effect. The position of the angle adjustment plate 402 is locked to prevent the angle of the emitter from shifting due to loosening of the angle adjustment plate 402 during subsequent inspection. Finally, the equipment is started, and the X-ray emitter 408 fixedly connected to the front of the angle adjustment plate 402 emits X-rays. After the X-rays penetrate the area to be inspected of the flat weld workpiece, they are received by the imaging structure 5 set on the front of the top of the base 1. The imaging structure 5 converts the received X-ray signal into an image of the inside of the weld. The operator can judge whether there are defects such as micro-cracks or incomplete penetration in the weld by observing the image, so as to achieve accurate and blind-spot-free inspection of the flat weld.

[0030] Specifically, such as Figure 4 As shown, the imaging structure 5 includes an imaging frame 501 welded to the front side of the bottom of the base 1. A power switch 502 is provided on the left side of the front side of the bottom of the base 1. The power switch 502 is electrically connected to the X-ray emitting head 408.

[0031] Specifically, such as Figure 4 As shown, an image receiver 503 is bolted to the rear side of the imaging frame 501. The image receiver 503 is horizontally aligned with the X-ray emitting head 408 and is electrically connected to the power switch 502.

[0032] Specifically, such as Figure 4 As shown, a display screen 504 is bolted to the front of the imaging frame 501. The display screen 504 is electrically connected to the image receiver 503 and the power switch 502.

[0033] In this embodiment: By setting up the imaging structure 5, during the detection process, the equipment is first started by the power switch 502 on the front left side of the bottom of the base 1. The power switch 502 simultaneously supplies power to the X-ray emitting head 408, the image receiver 503, and the display screen 504. The imaging frame 501, welded to the front side of the bottom of the base 1, provides a stable mounting carrier for the image receiver 503 and the display screen 504, ensuring that the image receiver 503 and the X-ray emitting head 408 are always horizontally aligned. After the X-ray emitted by the X-ray emitting head 408 penetrates the weld, it can be accurately received by the image receiver 503. The image receiver 503 converts the received X-ray signal into an electrical signal and transmits it to the display screen 504 on the front side of the imaging frame 501. The display screen 504 displays the internal image of the weld in real time. The operator can directly judge the weld defects through the clear image, realizing the visualization of the detection results. At the same time, the power switch 502 can cut off the power supply to the equipment at any time to ensure operational safety.

[0034] Specifically, such as Figure 6 As shown, a groove 6 is provided at the bottom of the base 1, and a slider 7 is welded to the bottom of the workpiece placement plate 3. The slider 7 is slidably connected inside the groove 6.

[0035] Specifically, such as Figure 6 As shown, an auxiliary rod 8 is fixedly connected to the front side inside the slide groove 6, and the rear side of the auxiliary rod 8 passes through the front side of the slider 7.

[0036] In this embodiment: by setting up a chute 6, a slider 7, and an auxiliary rod 8, when it is necessary to adapt to flat weld workpieces of different lengths, the workpiece placement plate 3 is pushed, and the slider 7 welded to its bottom will slide along the chute 6 opened at the bottom of the base 1, so as to realize the flexible adjustment of the position of the workpiece placement plate 3, ensuring that the welds of workpieces of different lengths can be aligned with the detection path of the X-ray emitting head 408 and the image receiver 503. At the same time, the auxiliary rod 8 fixedly connected to the front side inside the chute 6 passes through the front side of the slider 7, which can limit the sliding direction of the slider 7, prevent the slider 7 from deviating or getting stuck during the sliding process, ensure that the workpiece placement plate 3 moves smoothly, and further improve the accuracy of the workpiece position during detection.

[0037] Specifically, such as Figure 6 As shown, positioning blocks 9 are welded to the front and rear sides of the top of the workpiece placement plate 3, and rubber pads are glued to the inner side of the positioning blocks 9.

[0038] Specifically, such as Figure 5 As shown, a protective shell 10 is bolted to the front side of the angle adjustment plate 402. The protective shell 10 is located outside the X-ray emitting head 408, and a ray outlet 11 is opened on the front side of the protective shell 10.

[0039] In this embodiment: by setting positioning blocks 9, protective shells 10, and X-ray outlets 11, when placing the workpiece to be inspected, the positioning blocks 9 welded to the front and rear sides of the top of the workpiece placement plate 3 will limit the flat workpiece (of a relatively suitable size) from the front and rear sides, preventing the flat workpiece from sliding back and forth during the inspection process. The rubber pads bonded to the inner side of the positioning blocks 9 can prevent surface scratches caused by hard contact between the flat workpiece and the positioning blocks 9, and at the same time increase the friction between the flat workpiece and the positioning blocks 9, further improving the stability of the workpiece placement. The protective shell 10 bolted to the front side of the angle plate 402 completely covers the outside of the X-ray emitting head 408, which can block the entry of external dust and debris, and prevent dust from affecting the emission accuracy or service life of the emitting head. At the same time, the X-ray outlet 11 opened on the front side of the protective shell 10 is precisely aligned with the emitting end of the X-ray emitting head 408, and does not cause any obstruction to the X-rays emitted by the X-ray emitting head 408, ensuring that the X-rays can be emitted completely and directly toward the weld area, ensuring that the X-rays cover the inspection area, and providing a basis for subsequent accurate imaging.

[0040] Working Principle: When using the multi-angle X-ray flaw detector for flat welds, firstly, based on the inspection location of the flat weld workpiece, push the equipment. With the help of the casters 2 bolted to the four corners of the base 1, the direction of movement can be flexibly adjusted. After moving the equipment to the appropriate inspection position, lock the casters 2 to prevent slippage. At this point, the base 1 serves as the supporting foundation for the entire device, ensuring accurate positioning and no shaking of subsequent components, laying the foundation for inspection stability. Next, workpiece placement and positioning are performed: the flat weld workpiece to be inspected is placed stably on the workpiece placement plate 3 on top of the base 1. The positioning blocks 9 welded to the front and back sides of the top of the workpiece placement plate 3 limit the front and back movement of workpieces of suitable size, preventing the workpiece from shifting during inspection. Simultaneously... The rubber pad bonded to the inner side of the positioning block 9 can prevent surface scratches caused by hard contact between the workpiece and the positioning block 9, and can also increase the friction between the workpiece and the positioning block 9, further improving the stability of the workpiece placement. If the workpiece length is different, the workpiece placement plate 3 can be pushed so that the slider 7 welded to its bottom can slide along the groove 6 opened at the bottom of the base 1, realizing flexible adjustment of the placement plate position, ensuring that the weld seam of workpieces of different lengths can be aligned with the subsequent inspection path. In addition, the auxiliary rod 8 fixedly connected to the front side inside the groove 6 passes through the front side of the slider 7, which can limit the sliding direction of the slider 7, prevent the slider 7 from deviating or getting stuck, ensure the smooth movement of the placement plate, and further improve the accuracy of the workpiece position. Then, according to the specific structure of the plate weld seam (such as whether there is a "side fusion line" or "corner weld root" tilt), etc. (Area), Adjust the angle of the X-ray emitter 408: Hold the adjusting rod 404 welded to the rear side of the adjusting plate 402 in the flaw detection assembly 4, and apply force to make the adjusting plate 402 rotate around the shaft 403 rotatably connected to the right side inside the fixing frame 401 (welded to the top rear side of the base 1). When the adjusting plate 402 rotates, the pointer 407 welded to its left side will rotate synchronously in the angle scale groove 406 opened on the left side of the fixing frame 401. By observing the scale value pointed to by the pointer 407, the operator can accurately control the angle of the X-ray emitter 408 without relying on experience for adjustment, until the emitter angle is adjusted to a suitable position that allows the X-rays to fully penetrate the weld area to be inspected. After the angle adjustment is completed, turn the locking knob 4 threaded on the left side of the shaft 403. 05. Ensure the inner side of the locking knob 405 is in tight contact with the outer side of the mounting bracket 401, locking the position of the angle adjusting plate 402 through friction. This prevents the angle adjusting plate 402 from loosening during subsequent testing, which could cause the X-ray emitter head 408 to shift angle. Simultaneously, the protective shell 10, bolted to the front of the angle adjusting plate 402, encloses the X-ray emitter head 408, preventing external dust and debris from entering the emitter head and avoiding dust accumulation that could affect the emission accuracy or lifespan of the X-ray emitter head 408. Furthermore, the X-ray outlet 11 on the front of the protective shell 10 is precisely aligned with the emitting end of the X-ray emitter head 408, causing no obstruction of X-rays and ensuring that the rays are emitted completely towards the weld area. Finally, start the testing process: Press the power switch 502 on the front left side of the bottom of the base 1.Power switch 502 simultaneously supplies power to X-ray emitter 408, image receiver 503 (attached to the rear of imaging frame 501), and display screen 504 (attached to the front of imaging frame 501). Imaging frame 501 is welded to the front bottom of base 1, providing a stable mounting platform for image receiver 503 and display screen 504. Image receiver 503 and X-ray emitter 408 are always horizontally aligned. The X-rays emitted by X-ray emitter 408 penetrate the weld and are accurately received by image receiver 503. Image receiver 503 converts the received X-ray signal into an electrical signal and transmits it to display screen 504. Display screen 504 displays a real-time image of the weld interior. By observing the clear image, operators can determine whether there are defects such as micro-cracks or incomplete penetration in the weld, achieving accurate and blind-spot-free inspection of flat welds. After inspection, power switch 502 is turned off to cut off power and ensure operational safety.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 multi-angle X-ray flaw detector for flat welds, comprising a base (1), characterized in that: The four corners of the bottom of the base (1) are all bolted with casters (2), the top of the base (1) is provided with a workpiece placement plate (3), the rear side of the top of the base (1) is provided with a flaw detection component (4), and the front side of the top of the base (1) is provided with an imaging structure (5). The flaw detection assembly (4) includes a fixing frame (401) welded to the rear top of the base (1). An adjusting plate (402) is installed inside the fixing frame (401). A shaft (403) is rotatably connected to the right side of the fixing frame (401). The left side of the shaft (403) passes through the left side of the adjusting plate (402) and the inner side of the fixing frame (401). An adjusting rod (404) is welded to the rear side of the adjusting plate (402). The shaft (403)... 3) A locking knob (405) is threaded on the left side. The inner side of the locking knob (405) contacts the outer side of the fixing frame (401). An angle scale groove (406) is opened on the left side of the fixing frame (401). A pointer (407) is welded on the left side of the angle adjustment plate (402). The pointer (407) is rotatably connected inside the angle scale groove (406). An X-ray emitting head (408) is fixedly connected to the front side of the angle adjustment plate (402).

2. The X-ray flaw detector for multi-angle inspection of flat welds according to claim 1, characterized in that: The imaging structure (5) includes an imaging frame (501) welded to the front side of the bottom of the base (1). A power switch (502) is provided on the left side of the front side of the bottom of the base (1). The power switch (502) is electrically connected to the X-ray emitting head (408).

3. The X-ray flaw detector for multi-angle inspection of flat welds according to claim 2, characterized in that: An image receiver (503) is bolted to the rear side of the imaging frame (501). The image receiver (503) is horizontally aligned with the X-ray emitting head (408). The image receiver (503) is electrically connected to the power switch (502).

4. The X-ray flaw detector for multi-angle inspection of flat welds according to claim 2, characterized in that: The imaging frame (501) is bolted to the front of a display screen (504), which is electrically connected to the image receiver (503) and the power switch (502).

5. The X-ray flaw detector for multi-angle inspection of flat welds according to claim 1, characterized in that: The bottom of the base (1) is provided with a sliding groove (6), and the bottom of the workpiece placement plate (3) is welded with a slider (7), which is slidably connected inside the sliding groove (6).

6. The X-ray flaw detector for multi-angle inspection of flat welds according to claim 5, characterized in that: An auxiliary rod (8) is fixedly connected to the front side inside the slide groove (6), and the rear side of the auxiliary rod (8) passes through the front side of the slider (7).

7. The X-ray flaw detector for multi-angle inspection of flat welds according to claim 1, characterized in that: Positioning blocks (9) are welded to the front and rear sides of the top of the workpiece placement plate (3), and rubber pads are glued to the inner side of the positioning blocks (9).

8. The X-ray flaw detector for multi-angle inspection of flat welds according to claim 1, characterized in that: A protective shell (10) is bolted to the front side of the angle adjustment plate (402). The protective shell (10) is located outside the X-ray emitting head (408). A ray outlet (11) is opened on the front side of the protective shell (10).

Images