Detection tool for detecting surface defects of profile based on ultrasonic waves

Abstract

The utility model relates to the technical field of ultrasonic detection, and discloses a detection tool for detecting surface defects of a profile based on ultrasonic waves, which comprises a rack, a linear guide rail module is mounted on the inner side surface of the rack, a case is mounted at the moving end of the linear guide rail module, a first mounting groove is formed in the bottom of the rack, and a second mounting groove is formed in the bottom of the rack. A connecting block is rotationally mounted in the first mounting groove through a fixed shaft, a supporting arc ring is rotationally mounted at the bottom of the connecting block through a fixed shaft, a second mounting groove is formed in the supporting arc ring, and a connecting rod is mounted at one end of the inner side of the second mounting groove. Through the arranged components, the detection tool can be stably arranged on the surface of a detected object for defect detection, meanwhile, the distance between the probe and the surface of the detected object can be accurately controlled, the accuracy of a detection result is ensured, and the detection tool is high in integration level, convenient to carry and capable of carrying out testing at any time.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic testing technology, and in particular to a testing tool for detecting surface defects of profiles based on ultrasonic waves. Background Technology

[0002] Ultrasonic testing is a method that utilizes the phenomenon of reflection and refraction when ultrasonic waves encounter defects in materials to perform non-destructive testing on internal defects.

[0003] When considering existing ultrasonic testing methods, the degree of coupling with the surface of the object being tested needs to be taken into account. The degree of coupling will affect the testing structure. Among the various testing methods, there is an air-coupled ultrasonic testing method, which has high requirements for the distance control between the probe and the surface being tested, and also affects the widespread use of this testing method. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the problems mentioned above, a detection tool based on ultrasonic waves to detect surface defects of profiles is provided, which solves the above problems.

[0005] The technical problem solved by this utility model is achieved by the following technical solution: a detection tool for detecting surface defects of profiles based on ultrasonic waves, comprising a frame, a linear guide rail module installed on the inner side of the frame, a housing installed on the moving end of the linear guide rail module, a first mounting groove opened at the bottom of the frame, a connecting block rotatably mounted on the first mounting groove, a supporting arc ring rotatably mounted on the bottom of the connecting block, a second mounting groove opened inside the supporting arc ring, a connecting rod installed at one end of the inner side of the second mounting groove, a supporting block installed at the other end of the inner side of the second mounting groove, a supporting rod rotatably mounted on the inner surface of the second mounting groove, electrical control equipment and a power supply installed inside the housing, an assembly block installed at the bottom of the housing, a probe installed at the center inside the assembly block, a sliding groove opened inside the assembly block, a damper installed inside the sliding groove, a limit frame installed on the moving end of the damper, and a limit switch installed inside the sliding groove.

[0006] Preferably, the interior of the chassis is filled with sound-absorbing material and an assembly hole is provided on the top side of the chassis. The power supply is installed inside the chassis above the electrical control equipment. With the above configuration and the installation position of the power supply, the assembly hole is provided to facilitate the connection of an external power supply.

[0007] Preferably, the distance between the end of the limiting frame located inside the slide groove and the limiting switch mechanism is less than the length of the limiting frame and the difference does not exceed 50mm. Since the ultrasonic wave is performed by air coupling, the distance between the probe and the surface of the object being measured should not be too large. Thus, by controlling the difference, the distance between the probe and the surface of the object being measured can be controlled.

[0008] Preferably, a rubber head is provided on the side of the support block and installed at an upward angle. When the rubber head comes into contact with the surface of the object being measured, the friction generated by the rubber head allows the testing tool to be kept stably placed on the curved surface.

[0009] Preferably, the support rod has three sections, each connected by a spring, and both ends of the support rod are connected to one end of the connecting rod and the top surface of the support block, respectively. With the above arrangement, the support rod, the connecting rod, and the support block are connected, so that the detection tool can remain stable when placed on a plane.

[0010] Preferably, the linear guide module, limit switch, probe, electrical control equipment, and power supply are electrically connected, and the power supply is used to power the linear guide module and control the operation of the electrical components.

[0011] The advantages and positive effects of this utility model are as follows: The detection tool proposed in this application is based on ultrasonic waves to detect surface defects of profiles. Through the set components, the detection tool can be stably placed on the surface of the object being tested to detect defects. At the same time, the distance between the probe and the surface of the object being tested can be precisely controlled to ensure the accuracy of the detection results. Moreover, the detection tool has a high degree of integration, is easy to carry, and can be tested at any time. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a rear view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the chassis of this utility model;

[0016] Figure 4 This is a schematic diagram of the partial support arc ring structure of this utility model;

[0017] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0018] The markings in the attached diagram are as follows: 1. Frame; 2. Linear guide module; 3. Chassis; 4. First mounting slot; 5. Connecting block; 6. Support arc ring; 7. Second mounting slot; 8. Connecting rod; 9. Support block; 10. Support rod; 11. Electrical control equipment; 12. Power supply; 13. Assembly block; 14. Probe; 15. Slide groove; 16. Damper; 17. Limit frame; 18. Limit switch. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings: Figure 1-5 As shown, the present invention discloses a detection tool for detecting surface defects of profiles based on ultrasonic waves, comprising a frame 1, a linear guide module 2 mounted on the inner side of the frame 1, a housing 3 mounted on the moving end of the linear guide module 2, a first mounting groove 4 at the bottom of the frame 1, a connecting block 5 rotatably mounted inside the first mounting groove 4, and a supporting arc ring 6 rotatably mounted at the bottom of the connecting block 5. To fix the angle of rotation of the connecting block 5 and the supporting arc ring 6, a ratchet mechanism is used at the connection point of both the connecting block 5 and the supporting arc ring 6. The supporting arc ring 6 is made of rubber, and a second mounting groove 7 is formed inside the supporting arc ring 6. A connecting rod 8 is mounted on one end of the inner side of the second mounting groove 7, and a supporting block 9 is mounted on the other end of the inner side of the second mounting groove 7. The side of the supporting block 9 is provided with… A rubber head is installed at an upward angle. A support rod 10 is rotatably mounted on the inner surface of the second mounting groove 7. The support rod 10 has three sections, each connected by a spring. The two ends of the support rod 10 are connected to one end of the connecting rod 8 and the top surface of the support block 9, respectively. As shown in the figure, the support block 9 and the connecting rod 8 are connected by springs between each section of the support rod 10. When the surface of the object being measured is flat or close to flat, the spring force provides support. When the surface of the object being measured is curved, as shown in the figure, when the support arc ring 6 contacts the curved surface, because the support arc ring 6 is made of rubber, the support arc ring 6 deforms and adheres to the surface of the object being measured. Combined with the spring force and the friction generated by the contact between the rubber head and the surface, the testing tool can remain stable.

[0021] The chassis 3 houses an electrical control device 11 and a power supply 12. Sound-absorbing material is filled inside the chassis 3, and mounting holes are provided on the top and side of the chassis 3. The power supply 12 is installed above the electrical control device 11 inside the chassis 3. An assembly block 13 is installed at the bottom of the chassis 3, with a probe 14 installed at its center. A sliding groove 15 is formed inside the assembly block 13, and a damper 16 is installed inside the sliding groove 15. A limit frame 17 is installed at the moving end of the damper 16, and a limit switch 18 is installed inside the sliding groove 15. The distance between the end of the limit frame 17 inside the sliding groove 15 and the mechanism of the limit switch 18 is less than the length of the limit frame 17 and the difference does not exceed 50mm. (Linear guide module 2, limit switch 18) The probe 14 is electrically connected to the electrical control device 11 and the power supply 12. According to the description in this paragraph, this testing tool uses ultrasonic waves for defect detection and is based on air coupling. Therefore, the distance between the probe 14 and the object surface needs to be precisely controlled. Thus, the linear guide module 2 is used to achieve precise control of the moving distance, and a limit switch 18 is provided. When the testing tool is placed on the surface of the object being tested, the limit frame 17 will contact the surface of the object being tested. As the housing 3 descends, the limit switch 18 will be touched by the limit frame 17 after descending and will stop moving, thus achieving control of the moving position. Therefore, a protruding component corresponding to the position of the limit switch 18 is installed on the side of the limit frame 17.

[0022] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A testing tool for detecting surface defects of profiles based on ultrasonic waves, comprising a frame (1), characterized in that: A linear guide module (2) is installed on the inner side of the frame (1). A housing (3) is installed on the moving end of the linear guide module (2). A first mounting groove (4) is provided at the bottom of the frame (1). A connecting block (5) is rotatably mounted inside the first mounting groove (4). A support arc ring (6) is rotatably mounted at the bottom of the connecting block (5). A second mounting groove (7) is provided inside the support arc ring (6). A connecting rod (8) is installed at one end of the inner side of the second mounting groove (7). A support block (9) is installed at the other end of the inner side of the second mounting groove (7). The second mounting groove (7) has a support rod (10) mounted on its inner surface. The chassis (3) has an electrical control device (11) and a power supply (12) installed inside. The bottom of the chassis (3) has an assembly block (13). The center of the assembly block (13) has a probe (14). The assembly block (13) has a sliding groove (15). The sliding groove (15) has a damper (16). The moving end of the damper (16) has a limit frame (17). The sliding groove (15) has a limit switch (18).

2. The inspection tool for detecting surface defects of profiles based on ultrasonic waves according to claim 1, characterized in that: The interior of the chassis (3) is filled with sound-absorbing material and the top side of the chassis (3) has an assembly hole. The power supply (12) is installed inside the chassis (3) above the electrical control equipment (11).

3. The inspection tool for detecting surface defects of profiles based on ultrasonic waves according to claim 2, characterized in that: The distance between the end of the limiting frame (17) inside the slide groove (15) and the limit switch (18) is less than the length of the limiting frame and the difference does not exceed 50mm.

4. The inspection tool for detecting surface defects of profiles based on ultrasonic waves according to claim 3, characterized in that: A rubber head is provided on the side of the support block (9) and installed at an elevation angle.

5. The inspection tool for detecting surface defects of profiles based on ultrasonic waves according to claim 4, characterized in that: The support rod (10) has three sections, each connected by a spring, and both ends of the support rod (10) are connected to one end of the connecting rod (8) and the top surface of the support block (9), respectively.

6. The inspection tool for detecting surface defects of profiles based on ultrasonic waves according to claim 5, characterized in that: The linear guide module (2), limit switch (18), probe (14), electrical control equipment (11), and power supply (12) are electrically connected.

Images