Pipeline nondestructive testing clamping positioning device
By combining the clamping and lifting devices, the problem of loose clamping in pipeline non-destructive testing is solved, achieving stable clamping and efficient testing while reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CMEC (SHENZHEN) EQUIP INSPECTION & TESTING TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-14
AI Technical Summary
After prolonged use, the clamping effect of existing pipeline non-destructive testing clamping devices may loosen, leading to unstable clamping and affecting the accuracy and efficiency of testing.
The device employs a combination of clamping and lifting mechanisms. A first motor drives a gear and rack, while a cylinder pushes a limit block to achieve stable clamping of the flipping plate. A second motor drives a chain and threaded rod, with ball bearings guiding the pipe to rise, fall, and rotate, thus avoiding friction and energy consumption.
It improves the stability and efficiency of the clamping device, reduces its energy consumption, avoids loosening, and ensures the accuracy and efficiency of the test.
Smart Images

Figure CN224488858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline non-destructive testing technology, and in particular to a pipeline non-destructive testing clamping and positioning device. Background Technology
[0002] The pipeline non-destructive testing clamping and positioning device is a device used to fix and position pipelines during the non-destructive testing process. This device is widely used in various pipeline pressure testing scenarios, especially when comprehensive pipeline flaw detection is required, it can ensure the stability and accuracy of the testing equipment.
[0003] Existing technology, with publication number CN221088702U, discloses an adjustable clamping device for non-destructive testing, including a support box. Two bidirectional lead screws are rotatably connected to the left and right sides of the support box. Two clamping seats are movably connected to the bidirectional lead screws and two limiting rods. This invention relates to the field of non-destructive testing clamping equipment technology. This invention can clamp and flip pipes of different lengths and diameters, offering greater adaptability and enabling the testing of a wider range of pipe types, thereby improving testing efficiency. The first motor, bidirectional lead screws, limiting rods, clamping seats, and pipe flipping plate can quickly position and clamp the pipe without manual intervention, significantly improving work efficiency and effectiveness. The second motor, worm gear, worm, and rotating shaft can drive the pipe to rotate, exposing it at an appropriate angle, allowing the testing probe to more accurately detect defects, improving the accuracy and reliability of the testing, and achieving comprehensive testing.
[0004] When workers need to inspect pipelines, they place the pipelines on the positioning device so that the device can position them. However, existing positioning devices typically use a threaded rod to adjust the flip plate to clamp the pipeline. As the threaded rod wears down over time, the flip plate may loosen when clamping the pipeline, which reduces the clamping effect of the device. Utility Model Content
[0005] The purpose of this invention is to solve the problem that the clamping effect of existing clamping devices is reduced, and to propose a non-destructive testing clamping and positioning device for pipelines.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a non-destructive testing clamping and positioning device for pipelines, comprising a base, a flipping plate placed on the inner side of the base, clamping devices provided at both ends of the base, each clamping device including a sliding hole formed on the surface of the flipping plate, an auxiliary rod fixedly connected inside the base, the sliding hole slidably connected to the surface of the auxiliary rod, a support block fixedly connected to one end of the base, a first motor fixedly connected to one side of the support block, a gear fixedly connected to the drive end of the first motor, the gear rotatably connected to the interior of two support blocks, a rack fixedly connected to one side of the flipping plate, the rack slidably connected to the interior of the base, the gear meshing with the surface of the rack, a limiting component provided on the surface of the base, the limiting component including a cylinder fixedly connected to one end of the base, the cylinder located on one side of the support block, a limiting groove formed on the lower surface of the rack, the cylinder cooperating with the base to support the cylinder.
[0007] Preferably, the driving end of the cylinder is fixedly connected to a limiting block, the limiting block is slidably connected to the inside of the base, and the limiting block is inserted into the inside of the limiting groove. The cylinder can cooperate with the limiting block to push the limiting block into the limiting groove to restrict the sliding of the rack.
[0008] Preferably, the surface of the base is provided with a lifting device, the lifting device including a fixed plate, the fixed plate being fixedly connected to both sides of the base, and a threaded rod being slidably connected inside the fixed plate, the fixed plate being able to cooperate with the base to achieve the purpose of supporting the fixed plate.
[0009] Preferably, a threaded ring is rotatably connected to the lower surface of the fixed plate, and the threaded rod is threadedly connected to the surface of the threaded rod. The threaded ring can cooperate with the fixed plate to achieve the purpose of adjusting the threaded rod.
[0010] Preferably, a support block is fixedly connected to the top end of the threaded rod, the support block is placed on the upper surface of the base, and a second motor is fixedly connected to both sides of the base. The support block can cooperate with the threaded rod to achieve the purpose of supporting the threaded rod.
[0011] Preferably, a control wheel is fixedly connected to the drive end of the second motor, and a chain is meshed between the control wheel and the threaded ring. Ball bearings are rotatably connected inside the support block, and the control wheel can cooperate with the second motor to drive the control wheel to rotate.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] In this invention, by setting up a clamping device, when the worker needs to clamp the pipe, the lifting device adjusts the pipe to the specified height, then starts the first motor. The first motor drives the gear, the gear pushes the rack, the rack is guided by the base and slides, and the rack pushes the flipping plate. The two flipping plates approach the two ends of the pipe. When the flipping plates abut against the two ends of the pipe, the cylinder is activated. The cylinder pushes the limiting block, the limiting block is guided by the base and slides, and the limiting block inserts into the limiting groove. By setting up the clamping device, it is possible to effectively and conveniently clamp the pipe, avoiding the flipping plate from loosening when clamping the pipe, thereby improving the clamping effect of the clamping device.
[0014] In this invention, by setting up a lifting device, when a worker needs to clamp a pipe, the worker places the pipe on the ball bearings, starts the second motor, the second motor drives the control wheel, the control wheel drives the chain, the chain drives the threaded ring, the threaded ring rotates and adjusts the threaded rod, the threaded rod rises and pushes the support block, the fixed plate guides the threaded rod, the support block pushes the ball bearings, the ball bearings push the pipe, when the pipe rises to the appropriate position, the second motor is turned off. When the flipping plate causes the pipe to rotate, the pipe rotates under the guidance of the ball bearings. By setting up a lifting device, it is possible to effectively and conveniently clamp the pipe for the worker, avoiding the need for the worker to start the hydraulic cylinder to support the support block for a long time, thereby reducing the energy consumption of the clamping device, and at the same time reducing the friction between the pipe and the support block. Attached Figure Description
[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a pipe non-destructive testing clamping and positioning device;
[0016] Figure 2 This utility model provides a schematic diagram of the clamping device structure of a non-destructive testing clamping and positioning device for pipelines.
[0017] Figure 3 This utility model proposes a clamping and positioning device for non-destructive testing of pipelines. Figure 2 Enlarged structural diagram at point A in the middle;
[0018] Figure 4 This utility model provides a schematic diagram of the lifting device structure of a pipe non-destructive testing clamping and positioning device;
[0019] Figure 5 This utility model proposes a clamping and positioning device for non-destructive testing of pipelines. Figure 4 Enlarged structural diagram at point B.
[0020] Legend:
[0021] 1. Base; 2. Flipping plate; 3. Clamping device; 31. Sliding hole; 32. Auxiliary rod; 33. Rack; 34. Gear; 35. First motor; 36. Support block; 37. Limiting block; 38. Cylinder; 39. Limiting groove; 4. Lifting device; 41. Second motor; 42. Threaded rod; 43. Threaded ring; 44. Fixing plate; 45. Control wheel; 46. Chain; 47. Support block; 48. Ball bearing. Detailed Implementation
[0022] Please see Figures 1-5 This utility model provides a technical solution: a non-destructive testing clamping and positioning device for pipelines, including a base 1, a flip plate 2 placed on the inner side of the base 1, and clamping devices 3 provided at both ends of the base 1.
[0023] The specific setup and function of the clamping device 3 and the lifting device 4 will be explained in detail below.
[0024] In this embodiment: the clamping device 3 includes a sliding hole 31, which is formed on the surface of the flip plate 2. An auxiliary rod 32 is fixedly connected inside the base 1. The sliding hole 31 is slidably connected to the surface of the auxiliary rod 32. A support block 36 is fixedly connected to one end of the base 1. A first motor 35 is fixedly connected to one side of the support block 36. A gear 34 is fixedly connected to the drive end of the first motor 35. The gear 34 is rotatably connected to the interior of the two support blocks 36. A rack 33 is fixedly connected to one side of the flip plate 2. The rack 33 is slidably connected to the interior of the base 1. The gear 34 is meshed with the surface of the rack 33. A limit component is provided on the surface of the base 1.
[0025] Specifically, the limiting component includes a cylinder 38, which is fixedly connected to one end of the base 1. The cylinder 38 is located on one side of the support block 36. A limiting groove 39 is provided on the lower surface of the rack 33. The cylinder 38 can cooperate with the base 1 to achieve the purpose of supporting the cylinder 38.
[0026] Specifically, the drive end of the cylinder 38 is fixedly connected to the limiting block 37, the limiting block 37 is slidably connected to the inside of the base 1, and the limiting block 37 is inserted into the inside of the limiting groove 39.
[0027] In this embodiment, the cylinder 38 can cooperate with the limiting block 37 to push the limiting block 37 into the limiting groove 39 to restrict the sliding of the rack 33.
[0028] In this embodiment: a lifting device 4 is provided on the surface of the base 1. The lifting device 4 includes a fixing plate 44, which is fixedly connected to both sides of the base 1. A threaded rod 42 is slidably connected inside the fixing plate 44. The fixing plate 44 can cooperate with the base 1 to achieve the purpose of supporting the fixing plate 44.
[0029] Specifically, a threaded ring 43 is rotatably connected to the lower surface of the fixed plate 44, and the threaded rod 42 is threadedly connected to the surface of the threaded rod 42.
[0030] In this embodiment, the threaded ring 43 can cooperate with the fixed plate 44 to achieve the purpose of adjusting the threaded rod 42.
[0031] Specifically, a support block 47 is fixedly connected to the top of the threaded rod 42. The support block 47 is placed on the upper surface of the base 1. A second motor 41 is fixedly connected to both sides of the base 1. The support block 47 can cooperate with the threaded rod 42 to support the threaded rod 42.
[0032] Specifically, the drive end of the second motor 41 is fixedly connected to a control wheel 45, and a chain 46 is meshed between the control wheel 45 and the threaded ring 43. A ball bearing 48 is rotatably connected inside the support block 47.
[0033] In this embodiment, the control wheel 45 can cooperate with the second motor 41 to drive the control wheel 45 to rotate.
[0034] Working Principle: By setting up the clamping device 3, when the worker needs to clamp the pipe, the lifting device 4 adjusts the pipe to the specified height and starts the first motor 35. The first motor 35 drives the gear 34, which pushes the rack 33. The rack 33 is guided by the base 1 and slides, pushing the flipping plate 2. The two flipping plates 2 approach the two ends of the pipe. When the flipping plates 2 abut against the two ends of the pipe, the cylinder 38 is activated. The cylinder 38 pushes the limiting block 37. The limiting block 37 is guided by the base 1 and slides, inserting into the limiting groove 39. By setting up the clamping device 3, the worker can effectively and conveniently clamp the pipe, avoiding the flipping plate 2 from loosening when clamping the pipe, thus improving the clamping effect of the clamping device 3. In addition, by setting up the lifting device 4, when the worker needs to clamp the pipe, the lifting device 4 adjusts the pipe to the specified height and starts the first motor 35. The first motor 35 drives the gear 34, which pushes the rack 33. The rack 33 is guided by the base 1 and slides, pushing the flipping plate 2 close to the two ends of the pipe. When the flipping plate 2 abuts against the two ends of the pipe, the cylinder 38 is activated, pushing the limiting block 37. The limiting block 37 is guided by the base 1 and slides, inserting into the limiting groove 39. By setting up the clamping device 3, the worker can effectively and conveniently clamp the pipe, avoiding the flipping plate 2 from loosening when clamping the pipe, thus improving the clamping effect of the clamping device 3. When clamping the pipe, the worker places the pipe on the ball bearing 48, starts the second motor 41, drives the control wheel 45, drives the chain 46, drives the threaded ring 43, rotates the threaded rod 42, the threaded rod 42 rises and pushes the support block 47, the fixed plate 44 guides the threaded rod 42, the support block 47 pushes the ball bearing 48, the ball bearing 48 pushes the pipe, when the pipe rises to the appropriate position, the second motor 41 is turned off. When the flipping plate 2 causes the pipe to rotate, the pipe is guided by the ball bearing 48 to rotate. By setting up the lifting device 4, it is possible to effectively and conveniently clamp the pipe, avoiding the need for the worker to start the hydraulic cylinder to support the support block 47 for a long time, thereby reducing the energy consumption of the clamping device 3, and at the same time reducing the friction between the pipe and the support block 47.
Claims
1. A non-destructive testing clamping and positioning device for pipelines, comprising a base (1), characterized in that: A flip plate (2) is placed on the inner side of the base (1); The base (1) is provided with clamping devices (3) at both ends. The clamping devices (3) include sliding holes (31) which are formed on the surface of the flip plate (2). An auxiliary rod (32) is fixedly connected inside the base (1). The sliding hole (31) is slidably connected to the surface of the auxiliary rod (32). A support block (36) is fixedly connected to one end of the base (1). A first motor (35) is fixedly connected to one side of the support block (36). A gear (34) is fixedly connected to the drive end of the first motor (35). The gear (34) is rotatably connected to the interior of the two support blocks (36). A rack (33) is fixedly connected to one side of the flip plate (2). The rack (33) is slidably connected to the interior of the base (1). The gear (34) is meshed with the surface of the rack (33). A limit component is provided on the surface of the base (1).
2. The pipe non-destructive testing clamping and positioning device according to claim 1, characterized in that: The limiting component includes a cylinder (38), which is fixedly connected to one end of the base (1). The cylinder (38) is located on one side of the support block (36), and a limiting groove (39) is formed on the lower surface of the rack (33).
3. The pipe non-destructive testing clamping and positioning device according to claim 2, characterized in that: The driving end of the cylinder (38) is fixedly connected to a limiting block (37), the limiting block (37) is slidably connected to the inside of the base (1), and the limiting block (37) is inserted into the inside of the limiting groove (39).
4. The pipe non-destructive testing clamping and positioning device according to claim 3, characterized in that: The base (1) is provided with a lifting device (4), which includes a fixing plate (44). The fixing plate (44) is fixedly connected to both sides of the base (1), and a threaded rod (42) is slidably connected inside the fixing plate (44).
5. The pipe non-destructive testing clamping and positioning device according to claim 4, characterized in that: The lower surface of the fixed plate (44) is rotatably connected to a threaded ring (43), and the threaded rod (42) is threadedly connected to the surface of the threaded rod (42).
6. The pipe non-destructive testing clamping and positioning device according to claim 5, characterized in that: The top end of the threaded rod (42) is fixedly connected to a support block (47), which is placed on the upper surface of the base (1). The two sides of the base (1) are fixedly connected to a second motor (41).
7. The pipe non-destructive testing clamping and positioning device according to claim 6, characterized in that: The second motor (41) is fixedly connected to a control wheel (45), and a chain (46) is meshed between the control wheel (45) and the threaded ring (43). The inside of the support block (47) is rotatably connected to a ball (48).