Nondestructive testing device for thin plate

Abstract

The utility model discloses a nondestructive testing device for a thin plate, and belongs to the technical field of nondestructive testing equipment. The device comprises a working table, wherein a driving assembly, a limiting assembly and a detection assembly are arranged on the working table; wherein the driving assembly comprises a limiting part and a driving source; the limiting part is provided with a limiting groove into which the corner of the end part of the to-be-detected plate is clamped, and the limiting part drives the to-be-detected plate to move under the driving of the driving source; the limiting assembly comprises two limiting plates which can move relatively, and the limiting plates are used for limiting the two sides of the to-be-detected plate; and the detection assembly comprises a detection part arranged above the workbench, and the detection part is used for carrying out nondestructive detection on the to-be-detected plate. According to the utility model, through the mutual cooperation of the limiting part and the limiting plate, the end part and the two sides of the plate can be limited, so that the stability of the plate to be detected in the moving process can be ensured, and the detection result can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of nondestructive testing equipment, and more specifically, relates to a thin plate nondestructive testing device. Background Technique

[0002] After a thin plate is damaged at a certain position of the structure, its dynamic characteristics will change accordingly. The most significant feature is the reduction of the stiffness of the structure. With the development of the aerospace, aviation, and automotive industries, the demand for metal plates is increasing day by day, and these fields have extremely high requirements for the stiffness of thin plates. Therefore, it is very necessary to accurately monitor the structural damage of thin plates.

[0003] Nondestructive testing refers to a method of using the changes in thermal, acoustic, optical, electrical, magnetic and other reactions caused by the abnormalities or defects in the internal structure of materials, taking physical or chemical methods as means, and relying on modern technologies and equipment to check and test the internal and surface structures, properties, and types, properties, quantities, shapes, positions, sizes, distributions, and their changes of defects of the test piece, without damaging or affecting the service performance of the test object and without harming the internal tissues of the test object. As a commonly used nondestructive testing method, ultrasonic monitoring is widely used. For example, in the patent of CN107436325A, a metal plate ultrasonic nondestructive testing device is disclosed; in the patent of CN211825841U, an ultrasonic device for steel plate nondestructive testing is disclosed; in the patent of CN216132985U, an ultrasonic device for steel plate nondestructive testing is disclosed.

[0004] The above applications all involve technical improvements in the nondestructive testing of plates, but there is still room for optimization. For example, plates, especially thin plates, are prone to position deviation during movement, which affects the detection results of the probe on the surface of the plate. In addition, during the ultrasonic surface wave or plate wave detection process, the ultrasonic surface wave or plate wave will attenuate sharply when encountering air. Therefore, a coupling agent needs to be used to remove the air between the ultrasonic surface wave or plate wave probe and the workpiece, so that the ultrasonic surface wave or plate wave can effectively penetrate into the workpiece to achieve the detection purpose. Usually, oil or other non-corrosive liquids are applied on the surface of the plate as the coupling agent, and during the coating process of the coupling agent, the position of the plate is also prone to shift. Content of the Utility Model

[0005] 1. Problems to be Solved

[0006] In view of at least some of the above problems existing in the prior art, the utility model provides a thin plate nondestructive testing device, aiming to solve the problem that the existing nondestructive testing device is prone to position deviation during the transportation of the plate, thus affecting the detection results.

[0007] 2. Technical Solution

[0008] To solve the above problems, the technical solution adopted by the present utility model is as follows:

[0009] A non-destructive testing device for thin plates of the present utility model includes a workbench, and a driving component is provided on the workbench.

[0010] Two sets of the driving components are provided, and each driving component includes a limiting part and a driving source; wherein, a limiting groove for the end corner of the plate to be detected to be inserted is formed on the limiting part, and the limiting part drives the plate to be detected to move under the drive of the driving source.

[0011] A limiting component, the limiting component includes two relatively movable limiting plates, and the limiting plates are used to limit both sides of the plate to be detected.

[0012] And a detection component, the detection component includes a detection part arranged above the workbench, and the detection part is used for non-destructive testing of the plate to be detected.

[0013] Further, a clamping block is arranged in the limiting groove, and the clamping blocks in the two limiting grooves can move relatively, so as to clamp and limit the plate to be detected from both sides.

[0014] Further, a threaded hole is formed on the limiting part, and a threaded rod is arranged in the threaded hole. The free end of the threaded rod extends into the limiting groove and is connected to the clamping block.

[0015] Further, a pair of sliding grooves are formed on the workbench, and the two limiting plates are arranged in the corresponding sliding grooves through a positive and negative screw rod.

[0016] Further, the detection component includes a support rod and a connecting plate horizontally arranged on the support rod, and a plurality of detection parts are arranged on the connecting plate.

[0017] Further, a coating component is further included. The coating component includes first lifting platforms located on both sides of the workbench, and a coating roller located above the workbench. Both ends of the coating roller are rotatably connected to the corresponding first lifting platforms.

[0018] Further, a cleaning component is further arranged on one side of the workbench. The cleaning component includes a second lifting platform and a push rod horizontally arranged on the second lifting platform. A shovel plate is connected to the free end of the push rod.

[0019] Further, an installation block is embedded in the shovel plate, and a cleaning part is arranged at the bottom of the installation block.

[0020] Further, the driving source is any one of a cylinder, an oil cylinder, and an electric telescopic rod; the detection part is an ultrasonic probe.

[0021] Furthermore, counters are provided at both ends of the workbench.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] (1) For a thin plate nondestructive testing device of the present utility model, a limiting groove is provided on the limiting part. During the testing operation, the two corners at one end of the plate to be tested can be clamped into the corresponding limiting grooves, so as to limit the end of the plate; at the same time, in cooperation with the limiting plates, the plate to be tested is limited and guided from both sides, thereby ensuring the stability of the plate to be tested during the movement process and being beneficial to ensuring the testing results.

[0025] (2) For a thin plate nondestructive testing device of the present utility model, clamping blocks are arranged in the limiting groove, and the distance between the two clamping blocks is adjustable; at the same time, the distance between the two limiting plates is also adjustable, so as to realize the limiting operation of plates with different widths.

[0026] (3) For a thin plate nondestructive testing device of the present utility model, through the setting of the cleaning component, after the testing is completed, first use the push rod to push the scraping plate to scrape off the coupling agent on the surface of the plate; then, use the cleaning part at the bottom of the scraping plate to perform secondary cleaning on the surface of the plate and wipe the coupling agent on the surface of the plate clean. Description of the drawings

[0027] Figure 1 is a schematic structural diagram of a thin plate nondestructive testing device of the present utility model;

[0028] Figure 2 is a schematic structural diagram of the driving component in the present utility model;

[0029] Figure 3 is a schematic structural diagram of the limiting component in the present utility model;

[0030] Figure 4 is a schematic structural diagram of the testing component in the present utility model;

[0031] Figure 5 is a schematic structural diagram of the coating component in the present utility model;

[0032] Figure 6 is a schematic structural diagram of the cleaning component in the present utility model.

[0033] In the figure: 1. Workbench;

[0034] 2. Driving component; 21. Limiting part; 211. Limiting groove; 22. Driving source; 23. Clamping block; 24. Threaded rod;

[0035] 3. Limiting component; 31. Limiting plate; 32. Positive and negative screw rod

[0036] 4. Detection component; 41. Detection part; 42. Support rod; 43. Connecting plate; 431. Card slot

[0037] 5. Coating component; 51. First lifting table; 52. Coating roller

[0038] 6. Cleaning component; 61. Second lifting table; 62. Push rod; 63. Shovel plate; 64. Installation block; 65. Cleaning part

[0039] 7. Counter Detailed implementation mode

[0040] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the accompanying drawings

[0041] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance

[0042] The present utility model will be further described below with reference to specific embodiments

[0043] Refer to Figure 1 As shown, a non-destructive testing device for thin plates in this embodiment includes a workbench 1 and a driving component 2, a limiting component 3, and a detection component 4 arranged on the workbench 1. Among them, the workbench 1 serves as the installation foundation of the entire testing device, and a platform for placing the plate is formed on its top. The driving component 2 is used to limit one end of the plate to be detected and drive the plate to move. The limiting component 3 is used to guide and limit the plate from both sides; the detection component 4 is used to perform non-destructive testing on the surface of the plate

[0044] Refer to Figure 2 As shown, there are two groups of driving components 2, which include a limiting part 21 and a driving source 22. Among them, a limiting groove 211 for the corner of the end of the plate to be detected to be inserted is opened on the side of the limiting part 21 facing the plate, and the limiting part 21 drives the plate to be detected to move under the drive of the driving source 22

[0045] Specifically, the limiting part 21 is integrally L-shaped, including a horizontal section extending along the length direction of the workbench 1 and a vertical section extending along the width direction of the workbench 1. The above-mentioned limiting groove 211 is formed between the horizontal section and the vertical section. It should be noted that the length direction of the workbench 1 is Figure 1 the X direction in

[0046] and the width direction is the Y direction; and the sheet material moves along the length direction of the workbench 1.

[0047] Meanwhile, clamping blocks 23 are arranged in the limiting grooves 211. The clamping blocks 23 in the two limiting grooves 211 are respectively located on both sides of the sheet material and can move relatively, so as to clamp and limit the sheet material from both sides of the sheet material to be detected.

[0048] Reference Figure 3 As shown, the limiting component 3 includes two limiting plates 31 that can move relatively. The limiting plates 31 are respectively located on both sides of the sheet material and are used to limit both sides of the sheet material to be detected. Meanwhile, a pair of sliding grooves are formed in the workbench 1. The limiting plates 31 are located in the corresponding sliding grooves and can move back and forth in the sliding grooves, and the moving direction of the limiting plates 31 is along the width direction of the workbench 1.

[0049] Among them, there are various moving methods of the limiting plates 31. For example, a cylinder linear module, a ball screw module, a rack and pinion linear module, etc. As an implementation method, a cavity is provided inside the workbench 1, and a threaded hole is formed in a side wall of the cavity. The free end of the positive and negative screw rod 32 passes through the threaded hole and is rotatably connected to the other side wall of the cavity. The two limiting plates 31 are respectively threadedly connected to the positive and negative threaded sections of the positive and negative screw rod 32. In this way, the two limiting plates 31 can be moved away from or close to each other through the positive and negative screw rod 32.

[0050] Reference Figure 4 As shown, the detection component 4 includes a support rod 42 and a connecting plate 43. Among them, the support rod 42 is located on one side of the workbench 1, and the connecting plate 43 is horizontally arranged as a whole. One end of it is located on the connecting plate 43, and the other end extends above the workbench 1. A plurality of detection parts 41 are arranged along the length direction of the connecting plate 43. The detection parts 41 are of the prior art and can be directly purchased from the market. For example, ultrasonic probes.

[0051] Preferably, a clamping groove 431 is provided at the bottom of the connecting plate 43, and the detection part 41 is clamped in the corresponding clamping groove 431. At the same time, the support rod 42 can be selected as a liftable support rod to facilitate adjusting the distance between the detection part 41 and the plate.

[0052] In addition, to facilitate counting the number of plates, a counter 7 is provided at each end of the workbench 1.

[0053] For the positioning operation process of a thin plate non-destructive testing device in this embodiment, place the plate on the workbench 1. At this time, the two corners of the plate are located in the corresponding limiting grooves 211, and the end of this corner is abutted against the inner wall of the vertical section of the limiting part 21. Then, rotate the threaded rod 24 so that the clamping block 23 fits against the side of the corner. Then, rotate the forward and reverse screw rod 32 so that the limiting plate 31 moves in the sliding groove and finally fits against the side of the plate, thus completing the limiting operation of the plate.

[0054] For a thin plate non-destructive testing device in this embodiment, through the cooperation of the limiting part 21 and the clamping block 23, the ends of the plate to be detected can be clamped and limited. At the same time, with the addition of the limiting plates 31 for limiting and guiding from both sides of the plate to be detected, the stability of the plate to be detected during movement can be ensured, which is beneficial to ensuring the detection result. In addition, the distance between the two clamping blocks 23 and the distance between the two limiting plates 31 can both be adjusted, so as to be applicable to the limiting operation of plates with different widths.

[0055] In this embodiment, as another implementation manner of the thin plate non-destructive testing device, the thin plate non-destructive testing device further includes a coating assembly 5, and the coating assembly 5 is used to perform the operation of coating a coupling agent on the plate before detection to further ensure the accuracy of the detection result.

[0056] Reference Figure 1 、 Figure 5 As shown, the coating assembly 5 is located between the driving assembly 2 and the detection assembly 4, and it includes a first lifting platform 51 and a coating roller 52. Among them, there are two first lifting platforms 51, which are respectively located on both sides of the workbench 1. The two ends of the coating roller 52 are respectively rotatably connected to the corresponding first lifting platforms 51, and contact the upper surface of the plate under the drive of the first lifting platform 51 to complete the operation of coating the coupling agent. Of course, here the coating roller 52 can be driven to rotate passively, that is, the coating roller 52 is driven to roll by the frictional force between the coating roller 52 and the plate. It can also be driven to rotate actively, that is, the coating roller 52 rotates under the drive of an additional power source.

[0057] In addition, after the detection is completed, in order to be able to clean the coupling agent coated on the plate in time, in this embodiment, a cleaning assembly 6 is provided on one side of the workbench 1.

[0058] Reference Figure 1 、 Figure 6 As shown in Figure 1 and Figure 6 , the cleaning assembly 6 includes a second lifting platform 61 and a push rod 62 horizontally arranged on the second lifting platform 61. The free end of the push rod 62 is connected with a shoveling plate 63, and drives the shoveling plate 63 to move along the width direction of the workbench 1.

[0059] Furthermore, an installation block 64 is embedded in the shoveling plate 63, and a cleaning part 65 is arranged at the bottom of the installation block 64.

[0060] Preferably, the push rod 62 can be an electric push rod, or be pushed by a cylinder or an oil cylinder. The cleaning part 65 can be a sponge or a soft brush, etc.

[0061] In this embodiment, after the detection is completed, first use the push rod 62 to push the shoveling plate 63 to scrape off the coupling agent on the surface of the plate; then, use the cleaning part 65 at the bottom of the shoveling plate 63 to perform secondary cleaning on the surface of the plate to wipe the coupling agent on the surface of the plate clean.

[0062] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative efforts without departing from the creative purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A non-destructive testing device for thin plates, comprising a workbench (1), characterized in that: The workbench (1) is provided with a driving assembly (2). The driving assembly (2) is provided with two groups, which include a limiting portion (21) and a driving source (22); wherein the limiting portion (21) has a limiting groove (211) for the corner of the end of the plate to be detected to be inserted, and the limiting portion (21) drives the plate to be detected to move under the drive of the driving source (22); A limiting assembly (3), wherein the limiting assembly (3) comprises two limiting plates (31) that are relatively movable, and the limiting plates (31) are used to limit the two sides of the plate to be inspected; And a detection component (4), wherein the detection component (4) comprises a detection portion (41) arranged above the workbench (1), and the detection portion (41) is used for performing non-destructive testing on a plate to be tested.

2. A nondestructive testing device for thin plates according to claim 1, characterized in that: A clamping block (23) is arranged in the limiting groove (211), and the clamping blocks (23) in the two limiting grooves (211) can move relatively to each other, so as to clamp and limit the plate to be detected from both sides.

3. A nondestructive testing device for thin plates according to claim 2, characterized in that: The limiting portion (21) is provided with a threaded hole, and a threaded rod (24) is arranged in the threaded hole. The free end of the threaded rod (24) extends into the limiting groove (211) and is connected to the clamping block (23).

4. The nondestructive testing device for thin plates according to claim 1, characterized in that: A pair of sliding grooves are provided on the workbench (1), and two limit plates (31) are arranged in the corresponding sliding grooves through forward and reverse screw rods (32).

5. The nondestructive testing device for thin plates according to claim 1, characterized in that: The detection assembly (4) comprises a support rod (42) and a connecting plate (43) arranged transversely on the support rod (42), and a plurality of detection parts (41) are arranged on the connecting plate (43).

6. A nondestructive testing device for thin plates according to any one of claims 1 to 5, characterized in that: The coating assembly (5) further comprises a first lifting platform (51) located on both sides of the workbench (1), and a coating roller (52) located above the workbench (1), wherein both ends of the coating roller (52) are rotatably connected to the corresponding first lifting platform (51).

7. A thin plate nondestructive testing device according to claim 6, characterized in that: A cleaning assembly (6) is also provided on one side of the workbench (1), and the cleaning assembly (6) comprises a second lifting platform (61) and a push rod (62) arranged transversely on the second lifting platform (61), and a free end of the push rod (62) is connected to a shovel plate (63).

8. A thin plate nondestructive testing device according to claim 7, characterized in that: The shovel plate (63) is provided with a mounting block (64) embedded therein, and a cleaning portion (65) is provided at the bottom of the mounting block (64).

9. The nondestructive testing device for thin plates according to claim 1, characterized in that: The driving source (22) is any one of an air cylinder, an oil cylinder, and an electric telescopic rod; and the detection unit (41) is an ultrasonic probe.

10. The nondestructive testing device for thin plates according to claim 1, characterized in that: Counters (7) are provided at both ends of the workbench (1).

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