Positioning tool for steel nondestructive testing equipment
By designing a positioning fixture for non-destructive testing equipment for steel, and utilizing fixed components and motor drive to achieve automated positioning and testing of steel pipes, the problems of time-consuming, labor-intensive, and inefficient manual handling in existing technologies are solved, thus achieving efficient steel pipe testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN TIANJIAO NONDESTRUCTIVE TESTING ENG CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-08
AI Technical Summary
Existing non-destructive testing equipment for steel requires manual handling when inspecting steel pipes, which is time-consuming, labor-intensive, and inefficient, and also makes it inconvenient to locate and inspect the steel pipes.
A positioning fixture for a non-destructive testing equipment for steel is designed. The fixture includes a fixing component consisting of a first half-ring and a second half-ring connected by a hinge. It is fixed to a steel pipe by fastening bolts and the steel pipe is stably clamped and moved by a screw, clamping plate and slide rail structure. Combined with a motor drive, the axial movement and rotation of the detection head are realized to achieve automated testing.
It has achieved automated positioning and efficient inspection of steel pipes, reducing manual operation and improving work efficiency.
Smart Images
Figure CN224209812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of steel testing equipment, specifically a positioning fixture for a non-destructive testing equipment for steel. Background Technology
[0002] Large steel pipes are prone to rust or corrosion during long-term storage or use, which can affect their quality. Regular surface inspection using non-destructive testing (NDT) equipment is necessary to ensure their proper functioning. Currently, NDT equipment cannot be mounted on the pipe; manual inspection is required, which is time-consuming, labor-intensive, inefficient, and hinders precise pipe positioning. To address these issues, the inventor proposes a positioning fixture for NDT equipment to solve these problems. Utility Model Content
[0003] To address the current problem that when using non-destructive testing equipment to inspect steel pipes, manual inspection of the pipe surface is required, which is time-consuming, labor-intensive, inefficient, and inconvenient for positioning the pipes, this invention aims to provide a positioning fixture for non-destructive testing equipment for steel.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a positioning fixture for a non-destructive testing equipment for steel, comprising a fixing component, the fixing component comprising a first half-ring and a second half-ring, the first half-ring and the second half-ring being connected by a hinge, and the first half-ring and the second half-ring being fixed by fastening bolts, both the first half-ring and the second half-ring being threaded with lead screws, one end of each of the two lead screws being fixedly installed with a second knob, the ends of the two lead screws being rotatably installed with clamping plates, the clamping plates being arc-shaped, both clamping plates being rotatably installed with a plurality of evenly distributed auxiliary rollers, one side of each of the first half-ring and the second half-ring being fixedly installed with a slide rail, the two slide rails being spliced to form a circular slide rail, one of the slide rails being slidably fitted with a slider, the slider being threaded with a threaded rod, the top end of the threaded rod being fixedly installed with a first knob, the bottom end of the threaded rod being rotatably installed with a detection block, the lower surface of the detection block being fixedly installed with a detection head, and the lower surface of the detection block being rotatably installed with a plurality of evenly distributed ball bearings.
[0005] Preferably, a first motor is fixedly mounted on the upper surface of the slider, a drive gear is fixedly mounted on the output end of the first motor, and multiple teeth distributed in a ring are fixedly mounted in both slide rails, with the drive gear meshing with the teeth in the slide rails.
[0006] Preferably, a drive roller is rotatably mounted inside one of the clamping plates, and the outer ring of the drive roller can contact the surface of the steel pipe. A drive shaft is rotatably mounted inside one of the clamping plates. A bevel gear is fixedly mounted at the bottom end of the drive shaft and at one end of the drive roller, and the two bevel gears mesh. A second motor is fixedly mounted on the upper surface of one of the clamping plates, and the output end of the second motor is fixedly connected to the top end of the drive shaft.
[0007] Preferably, two symmetrically distributed first telescopic rods are fixedly installed on the inner rings of both the first and second semi-rings, and one end of the first telescopic rod is fixedly connected to the corresponding clamping plate. Two symmetrically distributed second telescopic rods are fixedly installed on the lower surface of the slider, and the bottom end of the second telescopic rod is fixedly connected to the upper surface of the detection block.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0009] 1. In this utility model, the first half ring and the second half ring are sleeved on the steel pipe to be inspected, and the first half ring and the second half ring are fixed with fastening bolts. Then, the screw is rotated by the second knob to drive the clamping plate to clamp the steel pipe, thereby fixing the device on the steel pipe and facilitating the inspection of the steel pipe surface.
[0010] 2. In this utility model, the slider drives the detection block to rotate along the slide rail, and the drive shaft drives the entire device to move along the axial direction of the steel pipe. The detection head on the detection block performs positioning detection on the surface of the steel pipe. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the clamping plate of this utility model;
[0015] Figure 4 This is a schematic diagram of the detection block structure of this utility model.
[0016] In the diagram: 1. Fixing assembly; 101. First half-ring; 102. Second half-ring; 2. Slide rail; 3. Slider; 4. Threaded rod; 5. First knob; 6. Detection block; 7. First telescopic rod; 8. Clamping plate; 9. Auxiliary roller; 10. Lead screw; 11. Second knob; 12. Second telescopic rod; 13. Gear; 14. First motor; 15. Drive gear; 16. Drive roller; 17. Bevel gear; 18. Drive shaft; 19. Second motor; 20. Detection head; 21. Ball bearing. Detailed Implementation
[0017] 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.
[0018] Example: Figure 1-4As shown, this utility model provides a positioning fixture for a non-destructive testing equipment for steel, including a fixing component 1. The fixing component 1 includes a first half-ring 101 and a second half-ring 102, which are hinged together by a hinge and fixed by fastening bolts. A lead screw 10 is threaded into both the first half-ring 101 and the second half-ring 102, and a second knob 11 is fixedly installed at one end of each lead screw 10. The two lead screws 10 are connected in series. Both ends of the ring are rotatably mounted with clamping plates 8, which are arc-shaped. Multiple auxiliary rollers 9 are rotatably mounted on both clamping plates 8, evenly distributed. A slide rail 2 is fixedly mounted on one side of both the first half-ring 101 and the second half-ring 102, and the two slide rails 2 can be joined to form a circular slide rail 2. A slider 3 is slidably mounted on one of the slide rails 2, and a threaded rod 4 is threaded into the slider 3. A first knob 5 is fixedly mounted on the top of the threaded rod 4, and a detection block 6 is rotatably mounted on the bottom of the threaded rod 4. A detection head 20 is fixedly installed on the lower surface of the detection block 6. Multiple evenly distributed balls 21 are rolled on the lower surface of the detection block 6. First, the first half-ring 101 and the second half-ring 102 are placed on the steel pipe to be inspected, and the first half-ring 101 and the second half-ring 102 are fixed with fastening bolts. Then, the second knob 11 is used to rotate the screw 10 to drive the clamping plate 8 to clamp the steel pipe, so that the auxiliary roller 9 on the clamping plate 8 contacts the surface of the steel pipe, which facilitates the axial movement of the entire device and makes the center of the ring after the first half-ring 101 and the second half-ring 102 are located on the central axis of the steel pipe. Then, according to the diameter of the steel pipe, the first knob 5 is used to drive the threaded rod 4 to rotate. The threaded rod 4 drives the detection block 6 to descend, so that the balls 21 on the detection block 6 contact the surface of the steel pipe. Then, the slider 3 drives the detection block 6 to rotate along the slide rail 2, and the detection head 20 on the detection block 6 inspects the surface of the steel pipe (the detection head 20 is a camera-like detection device that can take pictures of the surface of the steel pipe and transmit them, which is existing technology).
[0019] A first motor 14 is fixedly installed on the upper surface of the slider 3. A drive gear 15 is fixedly installed at the output end of the first motor 14. Multiple teeth 13 distributed in a ring are fixedly installed in both slide rails 2, and the drive gear 15 meshes with the teeth 13 in the slide rail 2.
[0020] By adopting the above technical solution, the first motor 14 drives the drive gear 15 to rotate, and the drive gear 15 meshes with the teeth 13 in the slide rail 2, driving the slider 3 to rotate and move along the slide rail 2.
[0021] A drive roller 16 is rotatably mounted inside one of the clamping plates 8, and the outer ring of the drive roller 16 can contact the surface of the steel pipe. A drive shaft 18 is rotatably mounted inside one of the clamping plates 8. A bevel gear 17 is fixedly mounted at the bottom end of the drive shaft 18 and at one end of the drive roller 16, and the two bevel gears 17 mesh. A second motor 19 is fixedly mounted on the upper surface of one of the clamping plates 8, and the output end of the second motor 19 is fixedly connected to the top end of the drive shaft 18.
[0022] By adopting the above technical solution, the second motor 19 drives the drive shaft 18 to rotate, and the drive shaft 18 drives the drive roller 16 to rotate through the bevel gear 17, thereby driving the entire device to move along the axial direction of the steel pipe.
[0023] The inner rings of the first half-ring 101 and the second half-ring 102 are each fixedly equipped with two symmetrically distributed first telescopic rods 7, and one end of the first telescopic rod 7 is fixedly connected to the corresponding clamping plate 8. The lower surface of the slider 3 is fixedly equipped with two symmetrically distributed second telescopic rods 12, and the bottom end of the second telescopic rod 12 is fixedly connected to the upper surface of the detection block 6.
[0024] By adopting the above technical solution, the first telescopic rod 7 can support and limit the clamping plate 8, and the second telescopic rod 12 can support and limit the detection block 6.
[0025] Working Principle: In use, the first half-ring 101 and the second half-ring 102 are first fitted onto the steel pipe to be tested, and then fixed with fastening bolts. Next, the second knob 11 is used to rotate the screw 10, which drives the clamping plate 8 to clamp the steel pipe, making the auxiliary roller 9 on the clamping plate 8 contact the surface of the steel pipe. This facilitates the axial movement of the entire device and ensures that the center of the ring formed by the splicing of the first half-ring 101 and the second half-ring 102 is located on the central axis of the steel pipe. Then, according to the diameter of the steel pipe, the first knob 5 is used to drive the threaded rod 4. The rotation of the threaded rod 4 causes the detection block 6 to descend, bringing the ball bearing 21 on the detection block 6 into contact with the surface of the steel pipe. Then, the first motor 14 drives the drive gear 15 to rotate, which meshes with the teeth 13 in the slide rail 2, causing the slider 3 to rotate along the slide rail 2. The slider 3 then drives the detection block 6 to rotate along the slide rail 2. Alternatively, the second motor 19 can drive the drive shaft 18 to rotate, which in turn drives the drive roller 16 to rotate via the bevel gear 17, thus moving the entire device along the axial direction of the steel pipe. The detection head 20 on the detection block 6 performs positioning detection on the surface of the steel pipe.
[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A positioning fixture for a non-destructive testing equipment for steel, comprising a fixing component (1), characterized in that: The fixing component (1) includes a first half-ring (101) and a second half-ring (102). The first half-ring (101) and the second half-ring (102) are connected by a hinge, and the first half-ring (101) and the second half-ring (102) can be fixed by fastening bolts. A lead screw (10) is threaded into both the first half-ring (101) and the second half-ring (102). A second knob (11) is fixedly installed at one end of each of the two lead screws (10). A clamping plate (8) is rotatably installed at the ends of the two lead screws (10) that are close to each other. The clamping plate (8) is arc-shaped, and a second knob (11) is rotatably installed on each of the two clamping plates (8). Multiple auxiliary rollers (9) are evenly distributed. A slide rail (2) is fixedly installed on one side of the first half ring (101) and the second half ring (102). The two slide rails (2) can be spliced into a circular slide rail (2). A slider (3) is slidably mounted on one of the slide rails (2). A threaded rod (4) is threadedly inserted into the slider (3). A first knob (5) is fixedly installed at the top of the threaded rod (4). A detection block (6) is rotatably mounted at the bottom of the threaded rod (4). A detection head (20) is fixedly mounted on the lower surface of the detection block (6). Multiple evenly distributed balls (21) are rolled on the lower surface of the detection block (6).
2. The positioning fixture for a non-destructive testing equipment for steel as described in claim 1, characterized in that, The upper surface of the slider (3) is fixedly mounted with a first motor (14), and the output end of the first motor (14) is fixedly mounted with a drive gear (15).
3. The positioning fixture for a non-destructive testing equipment for steel as described in claim 1, characterized in that, Both slide rails (2) are fixedly installed with a plurality of teeth (13) arranged in a ring, and the drive gear (15) meshes with the teeth (13) in the slide rails (2).
4. The positioning fixture for a non-destructive testing equipment for steel as described in claim 1, characterized in that, One of the clamping plates (8) is rotatably mounted with a drive roller (16), and the outer ring of the drive roller (16) can contact the surface of the steel pipe.
5. The positioning fixture for a non-destructive testing equipment for steel as described in claim 1, characterized in that, A drive shaft (18) is rotatably mounted inside one of the clamping plates (8). A bevel gear (17) is fixedly mounted on the bottom end of the drive shaft (18) and one end of the drive roller (16), and the two bevel gears (17) mesh.
6. The positioning fixture for a non-destructive testing equipment for steel as described in claim 1, characterized in that, A second motor (19) is fixedly mounted on the upper surface of one of the clamping plates (8), and the output end of the second motor (19) is fixedly connected to the top end of the drive shaft (18).
7. The positioning fixture for a non-destructive testing equipment for steel as described in claim 1, characterized in that, The inner rings of the first half-ring (101) and the second half-ring (102) are each fixedly equipped with two symmetrically distributed first telescopic rods (7), and one end of the first telescopic rod (7) is fixedly connected to the corresponding clamping plate (8).
8. The positioning fixture for a non-destructive testing equipment for steel as described in claim 1, characterized in that, Two symmetrically distributed second telescopic rods (12) are fixedly installed on the lower surface of the slider (3), and the bottom end of the second telescopic rod (12) is fixedly connected to the upper surface of the detection block (6).