Ultrasonic flaw detection and thickness measurement device for three-roller planetary rotary rolling pipe blank

Abstract

The utility model relates to the technical field of pipe blank flaw detection, in particular to an ultrasonic flaw detection and thickness measurement device for a three-roller planetary rotary rolling pipe blank, which comprises a main body bracket, a plurality of ultrasonic flaw detection devices and a plurality of ultrasonic flaw detection devices, the ultrasonic detection mechanism is arranged on the main body bracket and is used for carrying out ultrasonic detection on the pipe blank; the pipe clamping mechanism is arranged on the main body bracket and is used for clamping and fixing a pipe blank; wherein the ultrasonic detection mechanism comprises a detection bracket, and the detection bracket is fixedly mounted on the main body bracket; the screw rod is rotationally mounted on the detection bracket; the first motor is fixedly mounted on the main body bracket, and the first motor is used for driving the screw rod to rotate; the horizontal sliding seat is arranged on the detection support in a sliding mode, a threaded sliding block is arranged at the bottom end of the horizontal sliding seat, and the threaded sliding block is arranged on the threaded rod in a threaded and sleeving mode; the ultrasonic detection machine is arranged on the horizontal sliding seat and is used for detecting the pipe blank; the device can adapt to the size of a pipe blank, stable clamping is achieved, and the flexibility of a detection mechanism is improved.

Description

Ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks Technical Field

[0001] This utility model relates to the technical field of tube blank flaw detection, and in particular to an ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks. Background Technology

[0002] In the field of metal pipe manufacturing, the three-roll planetary rolling process is an advanced processing technology widely used in the production of various tube blanks. This process applies continuous and uniform deformation force to the tube blank by having three rolls move around it in a planetary motion, thereby effectively improving the internal structure of the tube blank, enhancing its mechanical properties and dimensional accuracy, and meeting the demand of high-end manufacturing industries for high-quality pipes.

[0003] However, during the three-roll planetary rolling process, various internal defects may occur in the tube blank due to the influence of rolling process parameters, equipment precision, raw material quality, and other factors. These defects include cracks, inclusions, and porosity. Additionally, the wall thickness of the tube blank may be uneven. These defects and uneven wall thickness not only seriously affect the final quality of the tube, reducing its performance and reliability, but may even lead to safety accidents during use, causing significant economic losses and reputational damage to the company.

[0004] To ensure the quality of three-roll planetary spinning tube blanks, timely detection and rejection of blanks with defects or unqualified wall thickness are essential steps, and effective testing is indispensable. Ultrasonic flaw detection and thickness measurement technology, as a non-destructive testing method, has advantages such as high detection accuracy, high speed, and harmlessness to the human body, and has been widely used in the field of pipe inspection.

[0005] Currently, although some ultrasonic flaw detection and thickness measurement equipment exists on the market for pipe inspection, most of these devices are designed for ordinary pipes and have many limitations when inspecting three-roll planetary spinning billets. Some devices cannot adapt to the dimensional requirements of three-roll planetary spinning billets, making it difficult to achieve stable clamping and accurate inspection of the billets; some devices lack flexibility in their inspection mechanisms, failing to adjust flexibly according to different positions of the billets and inspection needs, resulting in low inspection efficiency and a high risk of missed or false detections. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this utility model provides an ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks that can adapt to the size of the tube blank, achieve stable clamping, improve the flexibility of the detection mechanism, and enhance detection efficiency and accuracy.

[0007] This utility model discloses an ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks, comprising:

[0008] The main support frame is installed on the ground.

[0009] The ultrasonic testing mechanism, mounted on the main support, is used to perform ultrasonic testing on the tube blank;

[0010] The tube clamping mechanism, mounted on the main support, is used to clamp and fix the tube blank;

[0011] Among them, ultrasonic testing institutions include:

[0012] The testing bracket is fixedly installed on the main support.

[0013] The screw is rotatably mounted on the testing bracket;

[0014] The first motor is fixedly mounted on the main support and is used to drive the screw to rotate.

[0015] A horizontal slide block is slidably mounted on the detection bracket. A threaded slider is provided at the bottom of the horizontal slide block, and the threaded slider is threadedly fitted onto the screw.

[0016] An ultrasonic testing machine, mounted on a horizontal slide, is used to inspect tube blanks.

[0017] As a preferred embodiment of this utility model, the tube clamping mechanism includes:

[0018] The driving clamping fixture is rotatably mounted on the main support. The driving clamping fixture is equipped with a circular clamping plate and is tightly attached to one end of the tube blank.

[0019] The transmission wheel is fixedly connected to the drive clamping fixture.

[0020] The second motor is fixedly mounted on the main support and is used to drive the transmission wheel and the driving clamping fixture to rotate.

[0021] The movable clamping fixture is pressed against the other end of the tube blank and cooperates with the drive clamping fixture to clamp the tube blank.

[0022] The clamping assembly, mounted on the main support, is used to position the movable clamping fixture and assist the movable clamping fixture in clamping the tube blank.

[0023] As a preferred embodiment of this utility model, both the movable clamping fixture and the driving clamping fixture are provided with positioning pins at their clamping ends. The positioning pins are used to insert into the tube blank for positioning.

[0024] As a preferred embodiment of this utility model, the clamping assembly includes an adjusting frame, a clamping block, and a telescopic cylinder. The adjusting frame is oscillatingly mounted on the main support, and the telescopic cylinder is fixedly mounted on the adjusting frame. The output end of the telescopic cylinder is rotatably mounted with a clamping block, which is used to clamp the movable clamping fixture and assist the movable clamping fixture in rotating along the axis.

[0025] As a preferred embodiment of this utility model, a snap-fit ​​cylinder is oscillatingly mounted on the main support, and the output end of the snap-fit ​​cylinder is hinged to the outer wall of the adjustment frame.

[0026] As a preferred embodiment of this utility model, rubber pads are provided on the side walls of both the drive clamping fixture and the movable clamping fixture.

[0027] As a preferred embodiment of this utility model, the sliding direction of the ultrasonic testing machine is parallel to the tube blank held by the driving clamping fixture and the movable clamping fixture.

[0028] As a preferred embodiment of this utility model, the main support frame is provided with two lifting lugs.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows: The device, through a clamping mechanism, can stably clamp the three-roll planetary spinning tube blank according to its dimensional characteristics, avoiding instability in testing caused by tube blank size issues, thus ensuring accurate testing of the tube blank. In the ultrasonic testing mechanism, the first motor drives the screw to rotate, causing the horizontal slide to slide horizontally on the testing bracket, allowing the ultrasonic testing machine to be flexibly adjusted according to different positions of the tube blank and testing requirements. This flexibility makes the testing process more efficient, enabling rapid and comprehensive testing of the tube blank, reducing missed and false detections, and improving testing accuracy. By performing accurate and comprehensive ultrasonic flaw detection and thickness measurement on the three-roll planetary spinning tube blank using this device, internal defects and uneven wall thickness can be detected in a timely manner, thereby removing unqualified tube blanks and ensuring the quality of pipes entering the market. This helps improve the final quality and performance of the pipes, reducing the risk of safety accidents caused by pipe quality problems. Attached Figure Description

[0030] Figure 1 is a structural schematic diagram of this utility model;

[0031] Figure 2 is a magnified schematic diagram of the ultrasonic testing mechanism;

[0032] Figure 3 is a magnified schematic diagram of the clamping assembly;

[0033] The following are labels in the attached diagram: 1. Main support; 21. Detection support; 22. Screw; 23. First motor; 24. Horizontal slide; 25. Threaded slider; 26. Ultrasonic testing machine; 31. Drive clamping fixture; 32. Transmission wheel; 33. Second motor; 34. Movable clamping fixture; 35. Positioning pin; 36. Adjustment frame; 37. Locking block; 38. Telescopic cylinder; 39. Locking cylinder. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Referring to Figures 1-3, this embodiment provides an ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks, comprising:

[0037] Main support frame 1 is mounted on the ground;

[0038] An ultrasonic testing mechanism, mounted on the main support 1, is used to perform ultrasonic testing on the tube blank;

[0039] The tube clamping mechanism is mounted on the main support 1 and is used to clamp and fix the tube blank.

[0040] Among them, ultrasonic testing institutions include:

[0041] The detection bracket 21 is fixedly installed on the main support 1.

[0042] Screw 22 is rotatably mounted on the detection bracket 21;

[0043] The first motor 23 is fixedly mounted on the main support 1 and is used to drive the screw 22 to rotate.

[0044] A horizontal slide block 24 is slidably mounted on the detection bracket 21. A threaded slider 25 is provided at the bottom of the horizontal slide block 24, and the threaded slider 25 is threadedly fitted onto the screw 22.

[0045] An ultrasonic testing machine 26 is mounted on a horizontal slide 24 and is used to test tube blanks.

[0046] In this embodiment, the three-roll planetary spinning tube blank to be inspected is placed on the corresponding position on the main support 1, and the tube blank is clamped and fixed by the tube clamping mechanism to ensure that the tube blank remains stable during the inspection process and avoid shaking that affects the inspection accuracy. The first motor 23 is started, and the first motor 23 drives the screw 22 to rotate on the inspection support 21. Since the threaded slider 25 at the bottom of the horizontal slide 24 is threadedly fitted on the screw 22, and the horizontal slide 24 is slidably set on the inspection support 21, according to the principle of thread transmission, the rotation of the screw 22 will drive the threaded slider 25 to move axially along the screw 22, thereby causing the horizontal slide 24 to move axially along the screw 22, thus causing the horizontal slide 24 to move axially along the screw 22 during inspection. The support 21 slides horizontally; by controlling the rotation direction and number of revolutions of the first motor 23, the position of the ultrasonic testing machine 26 in the horizontal direction can be precisely adjusted so that it is aligned with the part of the tube blank that needs to be inspected; when the ultrasonic testing machine 26 moves to the appropriate position, it is started, and ultrasonic flaw detection and thickness measurement technology is used to inspect the tube blank; ultrasonic waves are emitted from the ultrasonic testing machine 26 and enter the interior of the tube blank. When they encounter internal defects or wall thickness interfaces of the tube blank, reflection and refraction will occur. The ultrasonic testing machine 26 receives these reflected waves, and by analyzing the characteristics of the reflected waves, it can accurately determine whether there are defects inside the tube blank. And whether the wall thickness is uniform; if it is necessary to inspect different positions of the tube blank, simply restart the first motor 23, adjust the position of the horizontal slide 24, and move the ultrasonic testing machine 26 to the new inspection point, repeat the above inspection process until all the parts of the tube blank that need to be inspected are inspected; the device, through the tube clamping mechanism, can stably clamp the tube blank according to the dimensional characteristics of the three-roll planetary spinning tube blank, avoiding the instability of inspection caused by tube blank size problems, thereby ensuring the accurate inspection of the tube blank; in the ultrasonic testing mechanism, the first motor 23 drives the screw 22 to rotate, driving the horizontal slide 24 to move on the inspection bracket 21 The upper horizontal sliding mechanism allows the ultrasonic testing machine 26 to be flexibly adjusted according to the different positions of the tube blank and the testing requirements. This flexibility makes the testing process more efficient, enabling rapid and comprehensive testing of the tube blank, reducing missed and false detections, and improving testing accuracy. By using this device to perform accurate and comprehensive ultrasonic flaw detection and thickness measurement on three-roll planetary spinning tube blanks, internal defects and uneven wall thickness problems can be detected in a timely manner, thereby removing unqualified tube blanks and ensuring the quality of pipes entering the market. This helps to improve the final quality and performance of the pipes and reduce the risk of safety accidents caused by pipe quality problems.

[0047] As a preferred embodiment of the above technical solution, as shown in Figure 1, the tube clamping mechanism includes:

[0048] The drive clamping fixture 31 is rotatably mounted on the main support 1. The drive clamping fixture 31 is provided with a circular clamping plate and is tightly attached to one end of the tube blank.

[0049] Transmission wheel 32 is fixedly connected to drive clamping fixture 31;

[0050] The second motor 33 is fixedly mounted on the main support 1. The second motor 33 is used to drive the transmission wheel 32 and drive the clamping fixture 31 to rotate.

[0051] The movable clamping fixture 34 is close to the other end of the tube blank and cooperates with the driving clamping fixture 31 to clamp the tube blank.

[0052] The clamping assembly is set on the main support 1 and is used to position the movable clamping fixture 34 and assist the movable clamping fixture 34 in clamping the tube blank.

[0053] In this embodiment, the three-roll planetary spinning billet to be inspected is placed on the main support 1, with one end of the billet pressed against the drive clamping fixture 31 and the other end pressed against the movable clamping fixture 34. The movable clamping fixture 34 is positioned using a clamping assembly, which assists the movable clamping fixture 34 in cooperating with the drive clamping fixture 31 to clamp the billet. The second motor 33 is started, driving the transmission wheel 32 to rotate. Since the transmission wheel 32 is fixedly connected to the drive clamping fixture 31, the rotation of the transmission wheel 32 will cause the drive clamping fixture 31 to rotate on the main support 1. Because the billet is clamped by the drive clamping fixture 31 and the movable clamping fixture 34... Because the tube blank is tightly clamped, it rotates together with the drive clamping fixture 31. During the rotation of the tube blank, the ultrasonic testing mechanism performs a comprehensive inspection of the tube blank. Since the tube blank is constantly rotating, the ultrasonic testing machine 26 can inspect various positions on the outer circumference of the tube blank, realizing all-round ultrasonic flaw detection and thickness measurement of the tube blank. The drive clamping fixture 31 and the movable clamping fixture 34 can be adjusted for three-roll planetary spin-rolled tube blanks of different sizes. Through the positioning and auxiliary clamping of the movable clamping fixture 34 by the clamping component, it can be ensured that the tube blank is stably clamped during the inspection process, without shaking or loosening, thus providing a guarantee for accurate inspection.

[0054] Specifically, as shown in Figure 3, both the movable clamping fixture 34 and the driving clamping fixture 31 are provided with positioning pins 35 at their clamping ends. The positioning pins 35 are used to be inserted into the tube blank for positioning.

[0055] In this embodiment, the positioning pin 35 is inserted into the tube blank for positioning, which increases the connection between the tube blank and the drive clamping fixture 31 and the movable clamping fixture 34. Compared with simply relying on clamping force to hold the tube blank, the positioning pin 35 can effectively prevent the tube blank from axially moving or rotating due to external forces such as the detection force of the ultrasonic testing mechanism or its own weight during the testing process, ensuring that the tube blank remains stable during the testing process, thereby improving the accuracy of the testing. Since the positioning pin 35 accurately positions the tube blank, the tube blank can rotate according to the predetermined trajectory and position during the rotation testing process. The ultrasonic testing machine 26 can more accurately test various parts of the tube blank, avoiding missed or false detections caused by tube blank position deviations, and improving the comprehensiveness and accuracy of the testing.

[0056] More specifically, as shown in Figure 3, the clamping assembly includes an adjusting frame 36, a clamping block 37, and a telescopic cylinder 38. The adjusting frame 36 is oscillatingly mounted on the main support 1. The telescopic cylinder 38 is fixedly mounted on the adjusting frame 36. The output end of the telescopic cylinder 38 is rotatably mounted with the clamping block 37. The clamping block 37 is used to clamp the movable clamping fixture 34 and assist the movable clamping fixture 34 to rotate along the axis.

[0057] In this embodiment, when the billet clamping test is not performed, the adjusting frame 36 is in a swing installation state. The swing angle of the adjusting frame 36 can be adjusted according to actual needs and operating space to make it a suitable working position, preparing for the subsequent clamping operation. The three-roll planetary spin-rolled billet to be tested is placed on the main support 1, so that one end of the billet is close to the drive clamping fixture 31 and the other end is close to the movable clamping fixture 34. The telescopic cylinder 38 is activated, and the output end of the telescopic cylinder 38 extends, pushing the clamping block 37 to move towards the movable clamping fixture 34. As the output end of the telescopic cylinder 38 continues to extend, the clamping block 37 contacts and clamps the movable clamping fixture 34. When the second motor 33 is started, it drives the transmission wheel 32 and the drive clamping fixture 31 to rotate, thereby driving the billet and the movable clamping fixture 34 to rotate. When in motion, since the locking block 37 is rotatably mounted on the output end of the telescopic cylinder 38, the locking block 37 can clamp the movable clamping fixture 34 while assisting the movable clamping fixture 34 to rotate stably along the axis, reducing friction and shaking during rotation. The clamping assembly clamps the movable clamping fixture 34 through the locking block 37, effectively preventing the movable clamping fixture 34 from moving axially during the inspection process due to factors such as the weight of the tube blank and the detection force of the ultrasonic testing mechanism, thereby ensuring the stability of the tube blank clamping and improving the accuracy of the inspection. The swing installation of the adjusting frame 36 allows the clamping assembly to flexibly adjust the position of the locking block 37 according to tube blanks of different sizes and shapes and actual operating requirements, ensuring that the locking block 37 can accurately clamp the movable clamping fixture 34, further enhancing the stability and adaptability of clamping.

[0058] Furthermore, as shown in Figure 3, a snap-fit ​​cylinder 39 is oscillatingly mounted on the main support 1, and the output end of the snap-fit ​​cylinder 39 is hinged to the outer wall of the adjusting frame 36.

[0059] In this embodiment, the swing drive of the snap-fit ​​cylinder 39 allows the position of the adjustment frame 36 to be flexibly adjusted. Operators can easily swing the adjustment frame 36 to a suitable position by controlling the extension and retraction of the snap-fit ​​cylinder 39 according to different sizes of tube blanks, different testing requirements and on-site operating space, without the need for complicated manual adjustments, which greatly improves the convenience and efficiency of operation.

[0060] Furthermore, rubber pads are provided on the side walls of both the drive clamping fixture 31 and the movable clamping fixture 34;

[0061] In this embodiment, the rubber pad has good elasticity and softness. During contact and clamping with the tube blank surface, it can effectively buffer the pressure of the clamping fixture on the tube blank, avoiding scratches, indentations, and other damage to the tube blank surface. This is especially important for high-quality tubes required by high-end manufacturing, because any damage to the tube blank surface may affect its subsequent processing and performance, or even lead to the scrapping of the tube. During the rotation of the tube blank, the relative sliding of the rubber pad will not cause excessive wear on the tube blank surface, further protecting the surface quality of the tube blank. During the rotation of the tube blank, due to the buffering effect of the rubber pad, the hard collision and friction noise between the clamping fixture and the tube blank surface can be reduced, thus improving the working environment and reducing the impact of noise on operators.

[0062] Furthermore, the sliding direction of the ultrasonic testing machine 26 is parallel to the tube blank held by the drive clamping fixture 31 and the movable clamping fixture 34;

[0063] In this embodiment, the ultrasonic testing machine 26 slides parallel to the tube blank, enabling the ultrasonic probe to perform a linear scan along the axis of the tube blank. This ensures that the ultrasonic waves can uniformly and accurately cover the entire surface and interior of the tube blank, avoiding missed or false detections due to deviations in the detection direction, thereby improving the accuracy and reliability of the detection. The parallel sliding design allows the ultrasonic testing machine 26 to quickly and continuously perform comprehensive testing on the tube blank without frequently adjusting the angle or position of the testing equipment, greatly shortening the testing time and improving testing efficiency. The parallel sliding method ensures that the ultrasonic testing machine 26 performs uniform testing on all parts of the tube blank, avoiding missed areas due to unreasonable detection paths, and ensuring the integrity of the overall quality testing of the tube blank.

[0064] Furthermore, as shown in Figure 1, the main support 1 is provided with two lifting lugs;

[0065] In this embodiment, the two lifting lugs provide a convenient way to install and move the equipment. When the equipment is first installed at the production site, there is no need for complicated handling tools or operating procedures. Simply use lifting equipment and lifting tools in conjunction with the lifting lugs to easily lift the equipment to the designated location, which greatly shortens the installation time and improves the installation efficiency.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks, characterized in that, include: The main support is mounted on the ground; the ultrasonic testing mechanism is mounted on the main support and is used to perform ultrasonic testing on the tube blank. A tube clamping mechanism, mounted on the main support, is used to clamp and fix the tube blank. The ultrasonic testing mechanism includes: a testing bracket, fixedly mounted on the main support; a screw, rotatably mounted on the testing bracket; a first motor, fixedly mounted on the main support, used to drive the screw to rotate; a horizontal slide block, slidably mounted on the testing bracket, with a threaded slider at its bottom end, the threaded slider being threadedly fitted onto the screw; and an ultrasonic testing machine, mounted on the horizontal slide block, used to test the tube blank.

2. The ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks as described in claim 1, characterized in that, The pipe clamping mechanism includes: a driving clamping fixture rotatably mounted on the main support, the driving clamping fixture having a circular clamping plate and being tightly attached to one end of the pipe blank; a transmission wheel fixedly connected to the driving clamping fixture; a second motor fixedly mounted on the main support, the second motor driving the transmission wheel and the driving clamping fixture to rotate; a movable clamping fixture tightly attached to the other end of the pipe blank, cooperating with the driving clamping fixture to clamp the pipe blank; and a clamping assembly disposed on the main support, used to position the movable clamping fixture and assist the movable clamping fixture in clamping the pipe blank.

3. The ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks as described in claim 2, characterized in that, Both the movable clamping fixture and the driving clamping fixture are provided with positioning pins at their clamping ends. The positioning pins are used to insert into the tube blank for positioning.

4. The ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks as described in claim 2, characterized in that, The clamping assembly includes an adjusting frame, a clamping block, and a telescopic cylinder. The adjusting frame is oscillatingly mounted on the main support, and the telescopic cylinder is fixedly mounted on the adjusting frame. The output end of the telescopic cylinder is rotatably mounted with a clamping block, which is used to clamp the movable clamping fixture and assist the movable clamping fixture in rotating along the axis.

5. The ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks as described in claim 4, characterized in that, A locking cylinder is oscillatingly mounted on the main support frame, and the output end of the locking cylinder is hinged to the outer wall of the adjusting frame.

6. The ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks as described in claim 2, characterized in that, Both the driving clamping fixture and the movable clamping fixture have rubber pads on their side walls.

7. The ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks as described in claim 2, characterized in that, The sliding direction of the ultrasonic testing machine is parallel to the tube blank held by the driving clamping fixture and the movable clamping fixture.

8. The ultrasonic flaw detection and thickness measurement device for three-roll planetary spinning tube blanks as described in claim 1, characterized in that, The main support frame is equipped with two lifting lugs.

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