High-frequency ultrasonic equipment for thin-walled tube detection

Abstract

The utility model relates to the technical field of thin-walled tube flaw detection, and discloses high-frequency ultrasonic equipment for thin-walled tube detection, which comprises a worktable, clamping and positioning components and a probe fixing component, the clamping and positioning components are fixedly mounted at two ends of the worktable far away from a center line, each clamping and positioning component comprises a mounting plate, and the probe fixing component is fixedly mounted on the mounting plate. A sliding plate is slidably connected to the end, away from the workbench, of the mounting plate, an air cylinder is fixedly mounted at the end, away from the mounting plate, of the sliding plate, and a connecting sleeve and a clamping head are fixedly mounted at the output end of the air cylinder. According to the high-frequency ultrasonic equipment for thin-walled tube detection, a sliding plate is manually pushed according to the length of a thin-walled tube, a first sliding block slides in a sliding groove, the transverse position of a clamping and positioning assembly is adjusted, after the position is determined, the transverse adjustable function of the clamping and positioning assembly is achieved through sliding fit of a groove and the first sliding block, and the high-frequency ultrasonic equipment is suitable for detection of thin-walled tubes of different lengths; and an operator can quickly adjust the clamping distance, so that the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled tube flaw detection technology, specifically a high-frequency ultrasonic device for thin-walled tube inspection. Background Technology

[0002] Ultrathin-walled tubes, due to their lightweight, high strength, and high integration, are increasingly widely used in aerospace, automotive, and electronic equipment fields. In aerospace, they are used to manufacture fuel delivery pipelines and hydraulic system pipes, and their performance directly affects the safety and reliability of aircraft. In the automotive industry, they are used for fuel pipes and brake pipes, which must meet stringent requirements such as high pressure resistance and corrosion resistance. In electronic equipment, they are used for miniature heat sinks and precision instrument conduits, which have extremely high requirements for uniformity of pipe wall thickness and tolerance for internal defects. The special structure of ultrathin-walled tubes makes them prone to internal defects during manufacturing, such as cracks, inclusions, and pores, which may lead to pipeline leaks, structural failures, or even serious safety accidents. Therefore, high-frequency ultrasonic testing is required.

[0003] Chinese Invention Patent Publication No. CN118583959A discloses a high-frequency ultrasonic testing device for ultra-thin-walled tubes. This device achieves full coverage of the ultra-thin-walled tube through high-speed rotation of the main shaft, improving the comprehensiveness and efficiency of the testing. It adopts high-frequency ultrasonic technology, which improves the sensitivity and accuracy of the testing. It uses a rotating capacitor structure, which eliminates the need for direct contact with the material being tested, reducing damage and interference to the tube wall. It is suitable for flaw detection of ultra-thin-walled tubes. However, although this high-frequency ultrasonic testing device can achieve full coverage, it is not convenient to adjust the positioning components according to the length of the thin-walled tube, resulting in poor versatility and significant overall limitations in its use, thus hindering its widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a high-frequency ultrasonic device for testing thin-walled tubes. It can effectively solve the problem that although the existing technology can achieve full coverage, it is not convenient to adjust the positioning components according to the length of the thin-walled tube, resulting in poor versatility and large overall limitations in its use, thus making it difficult to promote and use.

[0005] The technical solution adopted by this utility model is: a high-frequency ultrasonic device for testing thin-walled tubes, including a worktable, a clamping and positioning assembly and a probe fixing assembly, wherein the clamping and positioning assembly is fixedly installed at both ends of the worktable away from the center line;

[0006] The clamping and positioning assembly includes a mounting plate, a sliding plate is slidably connected to the end of the mounting plate away from the worktable, a cylinder is fixedly mounted to the end of the sliding plate away from the mounting plate, and a connecting sleeve and a clamping head are fixedly mounted on the output end of the cylinder;

[0007] The probe fixing assembly includes a profile frame, a slide rail and a motor are fixedly installed on one end of the profile frame near the worktable, a lead screw is fixedly installed on the output end of the motor, a slider two is threadedly connected to the outer edge of the lead screw, and a connecting seat and a detection probe are fixedly installed on the other end of the slider two away from the lead screw.

[0008] Preferably, a fixed base is fixedly installed on the workbench, and a rotating rod is fixedly installed at the end of the fixed base away from the workbench. A rotating sleeve is rotatably installed at the outer edge of the rotating rod, and the rotating sleeve and the clamping and positioning assembly are located on the same longitudinal horizontal line.

[0009] Through the above technical solution, by designing a rotating rod and a rotating sleeve, when conducting testing, the thin-walled tube can be placed above the rotating sleeve, and then the rotation of the rotating sleeve can drive the thin-walled tube to move above the rotating sleeve, which can improve the convenience of loading and unloading.

[0010] Preferably, the mounting plate has a groove at the end away from the workbench, and the sliding plate has a slider that matches the groove at the end near the mounting plate.

[0011] The above technical solution allows for manual pushing of the slide plate according to the length of the thin-walled tube, causing the slider to slide within the groove and adjusting the lateral position of the clamping and positioning component. Once the position is determined, the lateral adjustable function of the clamping and positioning component is achieved through the sliding cooperation between the groove and the slider. This is suitable for the inspection of thin-walled tubes of different lengths, and operators can quickly adjust the clamping distance to improve inspection efficiency.

[0012] Preferably, the mounting plate has an adjustment hole one at the end away from the workbench, and the sliding plate has an adjustment hole two at the end near the mounting plate with the same diameter as the adjustment hole one.

[0013] With the above technical solution, after adjusting the slide to the target position, align adjustment hole one and adjustment hole two, and then insert bolts or fasteners to limit the two, ensuring that the clamping and positioning components maintain a fixed distance during the detection process, and avoiding the slide from shifting due to vibration or external force.

[0014] Preferably, a protective cover is fixedly installed at the end of the connecting seat away from the profile frame, and the detection probe is located on the inner surface of the protective cover.

[0015] The above technical solution, through the design of the protective cover, can isolate a certain amount of noise generated during high-frequency ultrasonic testing, while preventing liquid splashes or metal fragments from damaging the probe during the testing process.

[0016] Preferably, there are two identical clamping and positioning components, and the two clamping and positioning components are symmetrically distributed about the center line of the worktable.

[0017] The above technical solution uses symmetrically distributed clamping and positioning components to form a balanced clamping force, preventing the thin-walled tube from shifting or rotating during testing. Fixing both ends ensures that the tube remains stationary during probe movement. Combined with the linear motion of the lead screw, this achieves uniform testing of the tube and avoids blind spots caused by clamping misalignment.

[0018] Preferably, the end of the fixed seat away from the worktable is threadedly connected to a positioning bolt, and the fixed seat, positioning bolt, rotating rod and rotating sleeve correspond one-to-one. Multiple fixed seats, positioning bolts, rotating rods and rotating sleeves are provided in an equidistant manner, and a control box is fixedly installed on the worktable.

[0019] Through the above technical solution, the equidistant distribution design of multiple sets of fixed seats and rotating sleeves allows for flexible selection of the number of support points according to the length of the pipe, avoiding sagging deformation of thin-walled pipes with large length-to-diameter ratios during testing.

[0020] Compared with the prior art, this utility model provides a high-frequency ultrasonic device for testing thin-walled tubes, which has the following advantages:

[0021] 1. This high-frequency ultrasonic device for thin-walled tube inspection allows manual pushing of a sliding plate according to the length of the thin-walled tube, causing slider one to slide within a groove. This adjusts the lateral position of the clamping and positioning component. Once the position is determined, the lateral adjustability of the clamping and positioning component is achieved through the sliding cooperation between the groove and slider one. This device is suitable for inspecting thin-walled tubes of different lengths, and operators can quickly adjust the clamping distance to improve inspection efficiency.

[0022] 2. This high-frequency ultrasonic equipment for testing thin-walled tubes features a rotating rod and rotating sleeve design. During testing, the thin-walled tube can be placed on top of the rotating sleeve, and then the rotating sleeve can be rotated to move the thin-walled tube above the rotating sleeve, which improves the convenience of loading and unloading. In addition, the equidistant distribution of multiple fixed seats and rotating sleeves allows for flexible selection of the number of support points according to the length of the tube, avoiding sagging and deformation of thin-walled tubes with large length-to-diameter ratios during testing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the installation structure of the workbench of this utility model;

[0026] Figure 4 This is a schematic diagram of the installation structure of the clamping and positioning component of this utility model. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the installation structure of the clamping and positioning component of this utility model. Figure 2 ;

[0028] Figure 6 This is a schematic diagram of the clamping and positioning component structure of this utility model. Figure 3 ;

[0029] Figure 7 This is a schematic diagram of the installation structure of the probe fixing assembly of this utility model.

[0030] The components include: 1. Workbench; 2. Clamping and positioning assembly; 201. Mounting plate; 202. Slide rail; 203. Adjustment hole one; 204. Slider one; 205. Slide plate; 206. Adjustment hole two; 207. Cylinder; 208. Connecting sleeve; 209. Clamping head; 3. Fixed base; 4. Positioning bolt; 5. Rotating rod; 6. Rotating sleeve; 7. Probe fixing assembly; 701. Profile frame; 702. Slide rail; 703. Motor; 704. Lead screw; 705. Slider two; 706. Connecting base; 707. Protective cover; 708. Detection probe; 8. Control box. Detailed Implementation

[0031] 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.

[0032] Example 1: As Figure 1-7 As shown, the present invention provides a high-frequency ultrasonic device for testing thin-walled tubes, including a worktable 1, a clamping and positioning assembly 2 and a probe fixing assembly 7. The clamping and positioning assembly 2 is fixedly installed at both ends of the worktable 1 away from the center line.

[0033] The clamping and positioning assembly 2 includes a mounting plate 201. A slide plate 205 is slidably connected to one end of the mounting plate 201 away from the worktable 1. A cylinder 207 is fixedly installed on one end of the slide plate 205 away from the mounting plate 201. A connecting sleeve 208 and a clamping head 209 are fixedly installed on the output end of the cylinder 207.

[0034] The probe fixing assembly 7 includes a profile frame 701. A slide rail 702 and a motor 703 are fixedly installed on one end of the profile frame 701 near the worktable 1. A lead screw 704 is fixedly installed on the output end of the motor 703. A slider 705 is threadedly connected to the outer edge of the lead screw 704. A connecting seat 706 and a detection probe 708 are fixedly installed on the other end of the slider 705 away from the lead screw 704.

[0035] Specifically, a fixed base 3 is fixedly installed on the workbench 1. A rotating rod 5 is fixedly installed at the end of the fixed base 3 away from the workbench 1. A rotating sleeve 6 is rotatably installed on the outer edge of the rotating rod 5. The rotating sleeve 6 and the clamping and positioning assembly 2 are located on the same longitudinal horizontal line. The advantage is that, through the design of the rotating rod 5 and the rotating sleeve 6, when performing inspection, the thin-walled tube can be placed above the rotating sleeve 6. Then, the rotation of the rotating sleeve 6 can drive the thin-walled tube to move above the rotating sleeve 6, which can improve the convenience of loading and unloading.

[0036] Specifically, the mounting plate 201 has a groove 202 at the end away from the worktable 1, and the sliding plate 205 has a slider 204 that matches the groove 202 at the end near the mounting plate 201. The advantage is that, according to the length of the thin-walled tube, the sliding plate 205 can be manually pushed to make the slider 204 slide in the groove 202 to adjust the lateral position of the clamping and positioning component 2. After the position is determined, the lateral adjustable function of the clamping and positioning component 2 is realized through the sliding cooperation between the through groove and the slider 204. It is suitable for the detection of thin-walled tubes of different lengths, and the operator can quickly adjust the clamping distance to improve the detection efficiency.

[0037] Specifically, the mounting plate 201 has an adjustment hole 203 at the end away from the worktable 1, and the slide plate 205 has an adjustment hole 206 at the end near the mounting plate 201 with the same diameter as the adjustment hole 203. The advantage is that after adjusting the slide plate 205 to the target position, the adjustment hole 203 and the adjustment hole 206 are aligned, and then bolts or fasteners can be inserted to limit the two, ensuring that the clamping and positioning assembly 2 maintains a fixed distance during the detection process, and avoiding the slide plate 205 from shifting due to vibration or external force.

[0038] Example 2: Figure 3-4 As shown, this is an improvement on the previous embodiment.

[0039] Specifically, a protective cover 707 is fixedly installed at the end of the connector 706 away from the profile frame 701, and the detection probe 708 is located on the inner surface of the protective cover 707. The advantage is that the design of the protective cover 707 can isolate a certain amount of noise generated during high-frequency ultrasonic testing, and at the same time prevent liquid splashes or metal fragments that may occur during the testing process from damaging the probe.

[0040] Specifically, there are two identical clamping and positioning components 2, which are symmetrically distributed about the center line of the worktable 1. The advantage is that the symmetrically distributed clamping and positioning components 2 form a balanced clamping force, which prevents the thin-walled tube from shifting or rotating axially during testing. By fixing both ends, it can be ensured that the tube remains stationary during the movement of the probe. Combined with the linear movement of the lead screw 704, uniform testing of the tube can be achieved, avoiding blind spots caused by clamping deviation.

[0041] Specifically, the end of the fixed seat 3 furthest from the workbench 1 is threaded with a positioning bolt 4. The fixed seat 3, positioning bolt 4, rotating rod 5 and rotating sleeve 6 correspond one-to-one. Multiple fixed seats 3, positioning bolt 4, rotating rod 5 and rotating sleeve 6 are provided in an equidistant manner. A control box 8 is fixedly installed on the workbench 1. The advantage is that the equidistant distribution design of multiple sets of fixed seats 3 and rotating sleeve 6 allows for flexible selection of the number of support points according to the length of the pipe, avoiding sagging deformation of thin-walled pipes with large length-to-diameter ratio during testing.

[0042] Working Principle: During use, the design of the rotating rod 5 and the rotating sleeve 6 allows the thin-walled tube to be placed above the rotating sleeve 6 during inspection. The rotation of the rotating sleeve 6 then moves the thin-walled tube above it, improving the ease of loading and unloading. Depending on the length of the thin-walled tube, the sliding plate 205 is manually pushed, causing the slider 204 to slide within the groove 202, adjusting the lateral position of the clamping and positioning component 2. After determining the position, the sliding cooperation between the through groove and the slider 204 enables the lateral adjustability of the clamping and positioning component 2, suitable for inspecting thin-walled tubes of different lengths. Operators can quickly adjust the clamping distance, improving inspection efficiency. After adjusting the sliding plate 205 to the target position, align it with the adjustment hole 20. 3 and adjustment hole 206, then bolts or fasteners can be inserted to limit the position of both, ensuring that the clamping and positioning components 2 maintain a fixed distance during the detection process, avoiding displacement of the slide plate 205 due to vibration or external force. The symmetrically distributed clamping and positioning components 2 form a balanced clamping force, preventing the thin-walled tube from axially shifting or rotating during detection. The fixing at both ends ensures that the tube remains stationary during probe movement. Combined with the linear movement of the lead screw 704, uniform detection of the tube is achieved, avoiding detection blind spots caused by clamping deviation. The equidistant distribution design of multiple sets of fixing seats 3 and rotating sleeves 6 allows for flexible selection of the number of support points according to the tube length, preventing sagging deformation of thin-walled tubes with large length-to-diameter ratios during detection.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-frequency ultrasonic device for testing thin-walled tubes, comprising a worktable (1), a clamping and positioning assembly (2), and a probe fixing assembly (7), characterized in that: The workbench (1) is fixedly equipped with clamping and positioning components (2) at both ends away from the center line; The clamping and positioning assembly (2) includes a mounting plate (201), a sliding plate (205) is slidably connected to one end of the mounting plate (201) away from the worktable (1), a cylinder (207) is fixedly mounted on one end of the sliding plate (205) away from the mounting plate (201), and a connecting sleeve (208) and a clamping head (209) are fixedly mounted on the output end of the cylinder (207); The probe fixing assembly (7) includes a profile frame (701). A slide rail (702) and a motor (703) are fixedly installed on one end of the profile frame (701) near the worktable (1). A lead screw (704) is fixedly installed on the output end of the motor (703). A slider (705) is threadedly connected to the outer edge of the lead screw (704). A connecting seat (706) and a detection probe (708) are fixedly installed on the other end of the slider (705) away from the lead screw (704).

2. The high-frequency ultrasonic device for testing thin-walled tubes according to claim 1, characterized in that: A fixed seat (3) is fixedly installed on the workbench (1). A rotating rod (5) is fixedly installed at the end of the fixed seat (3) away from the workbench (1). A rotating sleeve (6) is rotatably installed at the outer edge of the rotating rod (5). The rotating sleeve (6) and the clamping and positioning assembly (2) are located on the same longitudinal horizontal line.

3. The high-frequency ultrasonic device for testing thin-walled tubes according to claim 1, characterized in that: The mounting plate (201) has a groove (202) at the end away from the workbench (1), and the sliding plate (205) has a slider (204) at the end near the mounting plate (201) that matches the groove (202).

4. The high-frequency ultrasonic device for testing thin-walled tubes according to claim 1, characterized in that: The mounting plate (201) has an adjustment hole 1 (203) at the end away from the workbench (1), and the sliding plate (205) has an adjustment hole 2 (206) with the same diameter as the adjustment hole 1 (203) at the end near the mounting plate (201).

5. The high-frequency ultrasonic device for testing thin-walled tubes according to claim 1, characterized in that: A protective cover (707) is fixedly installed at the end of the connecting seat (706) away from the profile frame (701), and the detection probe (708) is located on the inner surface of the protective cover (707).

6. A high-frequency ultrasonic device for testing thin-walled tubes according to claim 1, characterized in that: Two identical clamping and positioning components (2) are provided, and the two clamping and positioning components (2) are symmetrically distributed about the center line of the worktable (1).

7. A high-frequency ultrasonic device for testing thin-walled tubes according to claim 2, characterized in that: The fixed seat (3) is threaded to a positioning bolt (4) at the end away from the workbench (1). The fixed seat (3), positioning bolt (4), rotating rod (5) and rotating sleeve (6) correspond one to one. The fixed seat (3), positioning bolt (4), rotating rod (5) and rotating sleeve (6) are provided in multiple identical and equally spaced positions. A control box (8) is fixedly installed on the workbench (1).

Images