An electric field distortion reduction defect detection apparatus

Abstract

The utility model discloses a kind of electric field distortion reduction defect detection devices, the utility model relates to defect detection technical field, including bottom plate, the upper end surface of bottom plate is provided with detection component and adjusting component, detection component includes moving plate, rotating ring, limit hole, electric field generator, first slider and second slider, the side surface of moving plate is slidably connected with the inner wall of bottom plate, the side surface of two rotating rings is rotatably connected with the side surface of moving plate, limit hole is opened in the side surface of rotating ring, the side surface of first slider is slidably connected between two rotating rings, the utility model has the advantages that: when encountering uneven workpiece surface or external force impact in detection, spring compression buffering is carried out, position deviation caused by hard collision between limiting block and limit hole is prevented, the second spring of the side surface of first slider is connected with electric field generator, to provide elastic support for it, avoid the deviation of electric field emission direction due to vibration.

Description

Technical Field

[0001] This utility model relates to the field of defect detection technology, specifically to a defect detection device for electric field distortion reduction. Background Technology

[0002] In the industrial manufacturing sector, defect detection is a key link in ensuring product quality. Especially in industries such as aerospace, new energy equipment, and automobile manufacturing, hidden defects in parts (such as cracks, pores, and uneven material) can lead to major safety accidents.

[0003] In existing technologies, electric field generators are mostly fixed by rigid supports. Uneven workpiece surfaces or vibrations during the testing process can cause the electric field generator to shift position. To address this, we propose an electric field distortion reduction defect detection device. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting defects in electric field distortion reduction.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an electric field distortion restoration defect detection device, comprising a base plate, wherein a detection component and an adjustment component are provided on the upper end surface of the base plate;

[0006] The detection assembly includes a movable plate, rotating rings, limiting holes, limiting blocks, an electric field generator, a first slider, and a second slider. The side of the movable plate is slidably connected to the inner wall of the base plate. The sides of the two rotating rings are rotatably connected to the side of the movable plate. The limiting holes are opened on the side of the rotating rings. The side of the first slider is slidably connected between the two rotating rings. The side of the second slider is slidably connected to the inner wall of the first slider. The side of the limiting block is connected to the side of the second slider. The side of the electric field generator is rotatably connected to the inner wall of the first slider.

[0007] The adjustment assembly includes a fixed plate, a drive wheel, and a threaded rod. The threaded rod is rotatably connected to the inner wall of the base plate. The inner wall of the movable plate is threadedly connected to the surface of the threaded rod. The lower end face of the fixed plate is connected to the upper end face of the base plate. The side of the drive wheel is rotatably connected to the inner wall of the fixed plate.

[0008] As a further embodiment of this utility model: an electric telescopic rod is rotatably connected to the side of the movable plate, and the telescopic end of the electric telescopic rod is rotatably connected to the side of the rotating ring.

[0009] As a further embodiment of this utility model: a second spring is connected to the side of the first slider, and one end of the second spring is connected to the side of the electric field generator.

[0010] As a further embodiment of this utility model: the inner wall of the first slider is connected to a first spring, and one end of the first spring is connected to the side of the second slider.

[0011] As a further embodiment of this utility model: a first servo motor is connected to the side of the base plate, and the output end of the first servo motor passes through the inner wall of the base plate and is connected to one end of the threaded rod.

[0012] As a further embodiment of this utility model: a second servo motor is connected to the side of the fixing plate, and the output end of the second servo motor passes through the inner wall of the fixing plate and is connected to the center of the drive wheel.

[0013] As a further embodiment of this utility model: the side of the limiting block is slidably connected to the inner wall of the limiting hole, and the side of the first slider is slidably connected to the inner wall of the moving plate.

[0014] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:

[0015] 1. In this utility model, the first spring on the inner wall of the first slider connects to the second slider. When the workpiece surface is uneven or an external force impacts during the detection, the spring is compressed to buffer and prevent the position displacement caused by the hard collision between the limiting block and the limiting hole. The second spring on the side of the first slider is connected to the electric field generator to provide elastic support and prevent the electric field emission direction from deviating due to vibration.

[0016] 2. This utility model uses an electric field generator that can be adjusted horizontally and vertically with the rotating ring. At the same time, it works with a drive wheel to rotate the workpiece, and can emit electric fields to the workpiece from different angles to capture multidimensional distortion signals at the defect.

[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the movable plate in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the rotating ring in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the limiting hole in an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the first slider in an embodiment of the present invention.

[0023] In the diagram: 1. Base plate; 2. Detection component; 21. Moving plate; 22. Rotating ring; 23. Electric telescopic rod; 24. Limiting hole; 25. Limiting block; 26. Electric field generator; 27. First slider; 28. Second slider; 29. ​​First spring; 210. Second spring; 3. Adjustment component; 31. First servo motor; 32. Fixing plate; 33. Second servo motor; 34. Drive wheel; 35. Threaded rod. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0025] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] Please see the appendix Figure 1 - Appendix Figure 5 The present invention provides a defect detection device for electric field distortion reduction, comprising a base plate 1, wherein a detection component 2 and an adjustment component 3 are provided on the upper end surface of the base plate 1.

[0027] In embodiment 1, the detection component 2 includes a movable plate 21, rotating rings 22, limiting holes 24, limiting blocks 25, an electric field generator 26, a first slider 27, and a second slider 28. The side of the movable plate 21 is slidably connected to the inner wall of the base plate 1. The sides of the two rotating rings 22 are rotatably connected to the side of the movable plate 21. The limiting holes 24 are formed on the side of the rotating rings 22. The side of the first slider 27 is slidably connected between the two rotating rings 22. The side of the second slider 28 is slidably connected to the inner wall of the first slider 27. The side of the limiting block 25 is connected to the side of the second slider 28. The electric field generator 26... The side of the sliding plate 21 is rotatably connected to the inner wall of the first slider 27. The side of the sliding plate 21 is rotatably connected to the electric telescopic rod 23. The telescopic end of the electric telescopic rod 23 is rotatably connected to the side of the rotating ring 22. The side of the first slider 27 is connected to the second spring 210. One end of the second spring 210 is connected to the side of the electric field generator 26. The inner wall of the first slider 27 is connected to the first spring 29. One end of the first spring 29 is connected to the side of the second slider 28. The side of the limiting block 25 is slidably connected to the inner wall of the limiting hole 24. The side of the first slider 27 is slidably connected to the inner wall of the sliding plate 21.

[0028] Specifically, the first slider 27 is I-shaped, with its two flanges embedded in the groove between the two rotating rings 22, enabling it to slide along the arc of the rotating rings 22. The second slider 28 is connected to the inner wall of the first slider 27 via a T-shaped guide rail, and can slide in a direction perpendicular to the plane of the rotating rings 22. The limiting block 25 is a wedge-shaped structure, and after being embedded in the cylindrical limiting hole 24 on the side of the rotating rings 22, it forms a rigid lock by squeezing the inner wall of the limiting hole 24 through the sliding of the second slider 28. When inspecting castings with rough surfaces, the undulations on the workpiece surface cause the electric field generator 26 to vibrate. The first spring 29 can absorb the vibration energy and maintain the stable fit between the limiting block 25 and the limiting hole 24.

[0029] In embodiment 2, the adjustment assembly 3 includes a fixed plate 32, a drive wheel 34, and a threaded rod 35. The threaded rod 35 is rotatably connected to the inner wall of the base plate 1. The inner wall of the moving plate 21 is threadedly connected to the surface of the threaded rod 35. The lower end face of the fixed plate 32 is connected to the upper end face of the base plate 1. The side of the drive wheel 34 is rotatably connected to the inner wall of the fixed plate 32. A first servo motor 31 is connected to the side of the base plate 1. The output end of the first servo motor 31 passes through the inner wall of the base plate 1 and is connected to one end of the threaded rod 35. A second servo motor 33 is connected to the side of the fixed plate 32. The output end of the second servo motor 33 passes through the inner wall of the fixed plate 32 and is connected to the center of the drive wheel 34.

[0030] Specifically, in the adjustment component 3, the first servo motor 31 drives the threaded rod 35 to rotate, and through the threaded transmission, the moving plate 21 slides horizontally on the base plate 1, achieving precise lateral positioning of the detection component 2. The second servo motor 33 drives the drive wheel 34 to rotate, and in conjunction with the extension and retraction of the electric telescopic rod 23, the pitch angle of the rotating ring 22 can be adjusted synchronously, so that the electric field generator 26 can emit electric fields at different angles in the vertical plane, covering the multi-directional detection needs of the workpiece. Compared with the traditional fixed-angle detection device, this design can achieve full-angle scanning of complex-shaped workpieces, avoid detection blind spots, and improve the comprehensiveness of defect identification. The electric telescopic rod 23 on the side of the moving plate 21 is hinged to the rotating ring 22, and the rotation amplitude of the rotating ring 22 is controlled by the extension and retraction amount, thereby adjusting the distance between the electric field and the workpiece.

[0031] Working principle:

[0032] First, the first servo motor 31 on the side of the base plate 1 drives the threaded rod 35 to rotate. Since the inner wall of the moving plate 21 is threadedly connected to the threaded rod 35, the rotation of the threaded rod 35 will be converted into the horizontal sliding of the moving plate 21 on the inner wall of the base plate 1, thereby driving the detection assembly 2 to move horizontally and realize the lateral adjustment of the detection position. The second servo motor 33 on the side of the fixed plate 32 drives the drive wheel 34 to rotate, and the drive wheel 34 can drive the workpiece to rotate, further refining the angle adjustment and realizing the angle change of the electric field generator 26 in the vertical plane of the workpiece.

[0033] An electric field generator 26 is mounted on the inner wall of the first slider 27 and can rotate around its connection point. When the power is turned on, it emits a stable electric field. If the object to be tested has defects (such as cracks, uneven material, etc.), the dielectric properties at the defect location are different from the surrounding medium, which will cause the electric field distribution to be distorted. The first slider 27 slides between two rotating rings 22 and can move with the angle adjustment of the rotating rings 22 to ensure that the electric field generator 26 is always aligned with the detection area. The second slider 28 slides on the inner wall of the first slider 27, and its limiting block 25 slides in cooperation with the limiting hole 24 on the side of the rotating ring 22. When the angle of the rotating ring 22 is fixed, The limiting block 25 is embedded in the limiting hole 24 to restrict the movement of the second slider 28, thereby fixing the position of the electric field generator 26 and preventing displacement during the detection process. The first spring 29 on the inner wall of the first slider 27 is connected to the second slider 28. When an external force impacts during the detection process, the first spring 29 is compressed and buffered to prevent the limiting block 25 from colliding hard with the limiting hole 24. The second spring 210 on the side of the first slider 27 is connected to the electric field generator 26. It can provide elastic support when the angle of the electric field generator 26 is adjusted or when it is subjected to a reaction force to ensure its stable emission of electric field. At the same time, it assists the electric field generator 26 in resetting after the detection is completed.

[0034] The electric field generator 26 captures electric field distortion signals through built-in sensors, converts them into electrical signals, and transmits them to the control system. The control system processes the distortion signals through algorithms to restore information such as the location, shape, and size of the defects, ultimately realizing the visual detection and analysis of the defects. At this point, the entire workflow is complete.

[0035] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0038] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. An electric field distortion reduction defect detection device, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is provided with a detection component (2) and an adjustment component (3); The detection component (2) includes a movable plate (21), a rotating ring (22), a limiting hole (24), a limiting block (25), an electric field generator (26), a first slider (27), and a second slider (28). The side of the movable plate (21) is slidably connected to the inner wall of the base plate (1). The sides of the two rotating rings (22) are rotatably connected to the side of the movable plate (21). The limiting hole (24) is opened on the side of the rotating ring (22). The side of the first slider (27) is slidably connected between the two rotating rings (22). The side of the second slider (28) is slidably connected to the inner wall of the first slider (27). The side of the limiting block (25) is connected to the side of the second slider (28). The side of the electric field generator (26) is rotatably connected to the inner wall of the first slider (27). The adjustment assembly (3) includes a fixed plate (32), a drive wheel (34), and a threaded rod (35). The threaded rod (35) is rotatably connected to the inner wall of the base plate (1). The inner wall of the movable plate (21) is threadedly connected to the surface of the threaded rod (35). The lower end face of the fixed plate (32) is connected to the upper end face of the base plate (1). The side of the drive wheel (34) is rotatably connected to the inner wall of the fixed plate (32).

2. The electric field distortion reduction defect detection device according to claim 1, characterized in that: An electric telescopic rod (23) is rotatably connected to the side of the movable plate (21), and the telescopic end of the electric telescopic rod (23) is rotatably connected to the side of the rotating ring (22).

3. The electric field distortion reduction defect detection device according to claim 1, characterized in that: The side of the first slider (27) is connected to a second spring (210), and one end of the second spring (210) is connected to the side of the electric field generator (26).

4. The electric field distortion reduction defect detection device according to claim 1, characterized in that: The inner wall of the first slider (27) is connected to a first spring (29), and one end of the first spring (29) is connected to the side of the second slider (28).

5. The electric field distortion reduction defect detection device according to claim 1, characterized in that: The side of the base plate (1) is connected to a first servo motor (31), and the output end of the first servo motor (31) passes through the inner wall of the base plate (1) and is connected to one end of the threaded rod (35).

6. The electric field distortion reduction defect detection device according to claim 1, characterized in that: The side of the fixed plate (32) is connected to a second servo motor (33), and the output end of the second servo motor (33) passes through the inner wall of the fixed plate (32) and is connected to the center of the drive wheel (34).

7. The electric field distortion reduction defect detection device according to claim 1, characterized in that: The side of the limiting block (25) is slidably connected to the inner wall of the limiting hole (24), and the side of the first slider (27) is slidably connected to the inner wall of the moving plate (21).

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