A straight seam welded pipe weld inspection device
By designing a surface treatment mechanism and a guiding mechanism for the straight seam welded pipe inspection device, the problems of surface cleaning and motion trajectory constraints of the welded pipe were solved, achieving efficient cleaning and stable conveying, and improving the inspection accuracy and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANDONG XINSHENG PAPER MASCH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing testing equipment is unable to thoroughly clean the surface of straight seam welded pipes, and traditional guiding structures cannot effectively constrain the movement trajectory of the welded pipes, resulting in deviations in testing results and pipe offset.
A detection device including a surface treatment mechanism and a guiding mechanism was designed. The device removes impurities from the surface of the welded pipe by using a cleaning brush and a vacuum cleaner, and stabilizes the movement trajectory of the welded pipe by a guide roller structure, thereby ensuring cleaning effect and detection accuracy.
It achieves efficient cleaning of the welded pipe surface, prevents impurities from affecting the test results, and ensures stable transport of the welded pipe during the test, thereby improving the test accuracy and reliability.
Smart Images
Figure CN224518718U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of weld seam inspection equipment, and in particular relates to a weld seam inspection device for straight seam welded pipes. Background Technology
[0002] Straight seam welded pipes play a crucial role in petrochemical, urban gas transmission, and construction engineering due to their excellent mechanical properties and economic efficiency. The weld seam, as the core component of a straight seam welded pipe, directly affects the sealing performance, pressure resistance, and overall safety of the pipeline system. Defects such as porosity, slag inclusions, and cracks in the weld seam can lead to leaks or even ruptures due to pressure and corrosion during long-term use, resulting in serious safety accidents and economic losses. Therefore, accurate and efficient inspection of the weld seams of straight seam welded pipes is essential.
[0003] Before testing, the surface of welded pipes often has residual oil, rust, welding slag and other impurities. These impurities not only interfere with the testing equipment's identification of the true state of the weld, leading to deviations in the test results, but may also wear down the testing instruments and affect the service life of the equipment. Existing testing devices are difficult to thoroughly clean the surface of welded pipes. At the same time, during the testing process, traditional guiding structures cannot effectively constrain the movement trajectory of the welded pipes, causing the welded pipes to deviate during transportation, affecting the testing results.
[0004] To address these issues, we provide a straight seam welded pipe weld inspection device. Utility Model Content
[0005] The purpose of this utility model is to provide a straight seam welded pipe weld seam inspection device. Through the cooperation of surface treatment mechanism, guiding mechanism and inspection equipment, it solves the problems of existing inspection devices being unable to thoroughly clean the surface of welded pipe and traditional guiding structures being unable to effectively constrain the movement trajectory of welded pipe.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.
[0007] This utility model relates to a weld inspection device for straight seam welded pipes, comprising an inspection platform. A surface treatment mechanism is fixedly connected to one side of the top of the inspection platform, and a guiding mechanism is fixedly connected to the top of the inspection platform. An inspection instrument is fixedly connected to the other side of the top of the inspection platform. The surface treatment mechanism includes a positioning platform, the bottom of which is fixedly connected to the inspection platform. A conveying roller is movably connected to the inner cavity of the positioning platform via a rotating shaft. Positioning posts are provided at each of the four corners of the top of the positioning platform. A top plate is fixedly connected to the top of each positioning post. A screw is threadedly connected to the top of the top plate. A mounting base is movably connected to the bottom of the screw via a bearing. A cleaning brush is fixedly connected to the bottom of the mounting base. A collection mechanism is connected to the bottom of the positioning platform. The two sides of the conveying roller are connected to the inner wall of the positioning table through bearings, allowing the conveying roller to rotate freely. When the straight seam welded pipe is placed on the conveying roller, the welded pipe moves on the conveying roller under the drive of the external traction equipment. The screw moves up and down by manual rotation, and its bottom is connected to the mounting seat through bearings. This connection method allows the mounting seat to remain relatively stable during the rotation of the screw and will not rotate with the screw. The cleaning brush fixedly connected to the bottom of the mounting seat is made of soft and wear-resistant bristles. Its shape is adapted to the outer surface contour of the straight seam welded pipe. By rotating the screw, the distance and contact pressure between the cleaning brush and the surface of the welded pipe can be precisely adjusted, ensuring effective removal of impurities from the surface of the welded pipe while avoiding damage to the surface of the welded pipe.
[0008] The present invention is further configured such that the collection mechanism includes a fixed plate, one side of which is fixedly connected to the testing platform, and a vacuum cleaner is fixedly connected to the top of the fixed plate. The top of the vacuum cleaner is connected to a collection cover, and the top of the collection cover is connected to a collection pipe. The top of the collection pipe penetrates the bottom of the testing platform and connects to the positioning platform. The vacuum cleaner can quickly and effectively suck the impurities swept down by the cleaning brush inside the positioning platform into the collection system. The collection pipe penetrates the testing platform and connects to the positioning platform, forming a closed impurity conveying channel to prevent impurities from leaking during transmission, polluting the testing environment, or interfering with subsequent testing work. Through the coordinated operation of the collection mechanism, the timely and efficient collection of impurities generated during the surface treatment of welded pipes is achieved, ensuring the cleanliness of the testing environment.
[0009] The present invention is further configured such that the guiding mechanism includes a mounting plate, the bottom of which is fixedly connected to the testing table, and movable platforms are provided on both sides of the top of the mounting plate. Mounting grooves are provided on both sides of the top of the movable platforms, and guide rollers are movably connected to the inner cavity of the mounting grooves via rotating shafts. During the conveying of the straight seam welded pipe, the rolling friction between the guide rollers and the welded pipe replaces the sliding friction, greatly reducing the conveying resistance and the wear on the surface of the welded pipe. The symmetrically arranged guide rollers on both sides can constrain the welded pipe from both sides, effectively preventing the welded pipe from shifting or shaking during conveying, ensuring that the welded pipe is smoothly conveyed to the testing equipment along the predetermined path. This invention can adapt to straight seam welded pipes of different specifications. By adjusting the position of the guide rollers, welded pipes of different diameters can be stably conveyed, improving the versatility and applicability of the testing device and ensuring the accuracy and stability of weld seam testing.
[0010] The present invention is further configured such that a lead screw is movably connected to the inner cavity of the mounting plate via a bearing, the surface of the lead screw is threadedly connected to the moving table, and one side of the lead screw extends through to the outside of the mounting plate and is fixedly connected to a throttle handle. By rotating the throttle handle, the position of the moving table can be adjusted, thereby adjusting the spacing between the guide rollers to adapt to straight seam welded pipes of different diameters.
[0011] The present invention is further configured such that support frames are fixedly connected to both sides of the bottom of the testing platform, and a crossbar is fixedly connected to one side of the support frame. The support frame and the crossbar form a stable support structure. The support frame is column-shaped and evenly distributed at the bottom of the testing platform, directly bearing the weight of the testing platform and the various components installed on it, and providing vertical support for the entire device.
[0012] The present invention is further provided that the inner cavity of the collection cover is provided with a collection box, and the surface of the collection box is provided with a pull rod. The collection box is used to centrally store the collected impurities, and the pull rod makes it convenient for the operator to pull the collection box out of the collection cover for cleaning or replacement.
[0013] The present invention is further configured such that limiting grooves are provided on both sides of the positioning platform, and limiting blocks are fixedly connected to both sides of the bottom of the top plate. One side of the limiting block is fixedly connected to the limiting groove by bolts. The limiting groove cooperates with the limiting block at the bottom of the top plate. When the top plate is installed, the limiting block can be inserted into the limiting groove to play a preliminary positioning and guiding role for the top plate, which facilitates the installation and alignment of the top plate with the positioning platform.
[0014] The present invention has the following beneficial effects.
[0015] 1. This utility model uses a conveyor roller inside the positioning platform to move the straight seam welded pipe. In conjunction with the cleaning brush under the top plate, it can clean impurities on the surface of the welded pipe. The contact pressure between the cleaning brush and the surface of the welded pipe can be adjusted by rotating the screw, ensuring the cleaning effect while avoiding damage to the welded pipe. The impurities generated during cleaning are collected in a timely manner by a collection mechanism at the bottom of the positioning platform, which consists of a vacuum cleaner, a collection hood, and a collection pipe. This prevents secondary pollution or impact on the testing environment, effectively eliminates the interference of surface impurities on the test results, and greatly improves the testing accuracy.
[0016] 2. This utility model allows for flexible adjustment of the moving platform position by rotating the handle, thereby changing the guide roller spacing to adapt to straight seam welded pipes of different specifications. The guide rollers in the mounting groove can rotate freely. When conveying the welded pipe, it can effectively constrain the movement trajectory of the welded pipe, prevent the welded pipe from deviating, and reduce the friction between the welded pipe and the guide roller, ensuring that the welded pipe passes through the testing equipment smoothly and accurately, guaranteeing the accuracy of the testing position, and improving the reliability of the testing results. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0018] Figure 1 This is a perspective view of a straight seam welded pipe weld inspection device.
[0019] Figure 2 This is a three-dimensional view of the surface treatment mechanism in a straight seam welded pipe weld inspection device.
[0020] Figure 3 This is a perspective view of a guide mechanism in a straight seam welded pipe weld inspection device.
[0021] Figure 4 This is a bottom-view perspective view of the positioning platform in a straight seam welded pipe weld inspection device.
[0022] Figure 5 This is a perspective view of the collection mechanism in a straight seam welded pipe weld inspection device.
[0023] In the attached diagram: 1. Inspection table; 2. Surface treatment mechanism; 21. Positioning table; 22. Conveying roller; 23. Positioning column; 24. Top plate; 25. Screw; 26. Mounting base; 27. Cleaning brush; 28. Collection mechanism; 281. Fixing plate; 282. Vacuum cleaner; 283. Collection cover; 284. Collection pipe; 3. Guiding mechanism; 31. Mounting plate; 32. Moving table; 33. Mounting groove; 34. Guide roller; 4. Inspection instrument; 5. Lead screw; 6. Rotary handle; 7. Support frame; 8. Collection box; 9. Limiting groove; 10. Limiting block. Detailed Implementation
[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Example 1
[0026] Please see Figure 1-5 This utility model is a straight seam welded pipe weld inspection device, including an inspection platform 1. A surface treatment mechanism 2 is fixedly connected to one side of the top of the inspection platform 1, a guide mechanism 3 is fixedly connected to the top of the inspection platform 1, and an inspection instrument 4 is fixedly connected to the other side of the top of the inspection platform 1. The surface treatment mechanism 2 includes a positioning platform 21, the bottom of the positioning platform 21 is fixedly connected to the inspection platform 1, a conveying roller 22 is movably connected to the inner cavity of the positioning platform 21 through a rotating shaft, positioning posts 23 are provided at the four corners of the top of the positioning platform 21, a top plate 24 is fixedly connected to the top of the positioning posts 23, a screw 25 is threadedly connected to the top of the top plate 24, a mounting seat 26 is movably connected to the bottom of the screw 25 through a bearing, a cleaning brush 27 is fixedly connected to the bottom of the mounting seat 26, and a collection mechanism 28 is connected to the bottom of the positioning platform 21.
[0027] Specifically: The two sides of the conveyor roller 22 are connected to the inner wall of the positioning platform 21 through bearings, allowing the conveyor roller 22 to rotate freely. When the straight seam welded pipe is placed on the conveyor roller 22, the welded pipe moves on the conveyor roller 22 under the drive of the external traction equipment. The screw 25 moves up and down by manual rotation. Its bottom is connected to the mounting base 26 through a bearing. This connection method allows the mounting base 26 to remain relatively stable during the rotation of the screw 25 and not to rotate with the screw 25. The cleaning brush 27, which is fixedly connected to the bottom of the mounting base 26, is made of soft and wear-resistant bristles. Its shape is adapted to the outer surface contour of the straight seam welded pipe. By rotating the screw 25, the distance and contact pressure between the cleaning brush 27 and the surface of the welded pipe can be precisely adjusted, ensuring effective removal of impurities from the surface of the welded pipe while avoiding damage to the surface of the welded pipe.
[0028] Example 2
[0029] Please see Figure 1-5Based on Embodiment 1, the collection mechanism 28 includes a fixed plate 281, one side of which is fixedly connected to the detection platform 1. A vacuum cleaner 282 is fixedly connected to the top of the fixed plate 281. A collection cover 283 is connected to the top of the vacuum cleaner 282. A collection pipe 284 is connected to the top of the collection cover 283. The top of the collection pipe 284 passes through the bottom of the detection platform 1 and communicates with the positioning platform 21. The guiding mechanism 3 includes a mounting plate 31, the bottom of which is fixedly connected to the detection platform 1. Movable platforms 32 are provided on both sides of the top of the mounting plate 31. Mounting grooves 33 are provided on both sides of the top of the movable platforms 32. The inner cavity of 3 is movably connected to the guide roller 34 via a rotating shaft. The inner cavity of the mounting plate 31 is movably connected to the lead screw 5 via a bearing. The surface of the lead screw 5 is threadedly connected to the moving table 32. One side of the lead screw 5 extends through to the outside of the mounting plate 31 and is fixedly connected to the handle 6. Support frames 7 are fixedly connected to both sides of the bottom of the detection table 1. A crossbar is fixedly connected to one side of the support frame 7. The inner cavity of the collection cover 283 is provided with a collection box 8. A pull rod is provided on the surface of the collection box 8. Limit grooves 9 are opened on both sides of the positioning table 21. Limit blocks 10 are fixedly connected to both sides of the bottom of the top plate 24. One side of the limit block 10 is fixedly connected to the limit groove 9 by bolts.
[0030] Specifically: The vacuum cleaner 282 can quickly and effectively suck up the impurities swept down by the cleaning brush 27 inside the positioning table 21 into the collection system. The collection pipe 284 passes through the inspection table 1 and connects to the positioning table 21, forming a closed impurity conveying channel to prevent impurities from leaking during transmission, polluting the inspection environment, or interfering with subsequent inspection work. Through the coordinated operation of the collection mechanism 28, the impurities generated during the surface treatment of the welded pipe are collected in a timely and efficient manner, ensuring the cleanliness of the inspection environment. During the conveying of the straight seam welded pipe, the rolling friction between the guide roller 34 and the welded pipe replaces the sliding friction, greatly reducing the conveying resistance and reducing the wear on the surface of the welded pipe. The guide rollers 34, which are symmetrically arranged on both sides, can constrain the welded pipe from both sides, effectively preventing the welded pipe from shifting or shaking during the conveying process, ensuring that the welded pipe is smoothly conveyed to the inspection equipment 4 along the predetermined path. It can adapt to straight seam welded pipes of different specifications. By adjusting the position of the guide rollers 34... The device can stably transport welded pipes of different diameters, improving the versatility and applicability of the testing device and ensuring the accuracy and stability of weld inspection. By rotating the handle 6, the position of the moving table 32 can be adjusted, thereby adjusting the spacing between the guide rollers 34 to adapt to straight seam welded pipes of different diameters. The support frame 7 and the crossbar form a stable support structure. The support frame 7 is column-shaped and evenly distributed at the bottom of the testing table 1, directly bearing the weight of the testing table 1 and the components installed on it, providing vertical support for the entire device. The collection box 8 is used to centrally store the collected impurities. The pull rod makes it easy for the operator to pull the collection box 8 out of the collection cover 283 for cleaning or replacement. The limiting groove 9 cooperates with the limiting block 10 at the bottom of the top plate 24. When installing the top plate 24, the limiting block 10 can be inserted into the limiting groove 9 to provide initial positioning and guidance for the top plate 24, facilitating the installation and alignment of the top plate 24 with the positioning table 21.
[0031] The working principle of this utility model is as follows: The straight seam welded pipe is placed on the conveyor roller 22. Under the drive of the external traction equipment, the welded pipe begins to move on the conveyor roller 22. At this time, the operator can manually rotate the screw 25 according to the actual situation of the welded pipe. The screw 25 moves up and down through the threaded connection with the top plate 24. The shape of the cleaning brush 27 is adapted to the outer surface contour of the straight seam welded pipe. With the adjustment of the screw 25, the distance and contact pressure between the cleaning brush 27 and the surface of the welded pipe are controlled. While ensuring effective removal of impurities such as oil stains, rust, and welding slag from the surface of the welded pipe, it will not damage the surface of the welded pipe, thus completing the pretreatment of the surface of the welded pipe. The vacuum cleaner 282 generates suction. Through the channel composed of the collection cover 283 and the collection pipe 284, the impurities swept down by the cleaning brush 27 in the positioning table 21 are sucked into the collection cover 283. The impurities are finally sucked into the collection box 8 in the inner cavity of the collection cover 283 for centralized storage.
[0032] The operator rotates the throttle 6 to drive the lead screw 5 to rotate, and the moving table 32 moves horizontally along the direction of the lead screw 5, thereby adjusting the spacing between the guide rollers 34 to accommodate straight seam welded pipes of different diameters. During the conveying process of the welded pipe, the rolling friction between the guide rollers 34 and the welded pipe replaces the sliding friction, which greatly reduces the conveying resistance. The guide rollers 34, which are symmetrically arranged on both sides, constrain the welded pipe from both sides, effectively preventing the welded pipe from deviating or shaking during the conveying process, and ensuring that the welded pipe is smoothly conveyed to the testing equipment 4 along the predetermined path.
[0033] When the straight seam welded pipe is transported to the testing equipment 4, the weld seam of the pipe is inspected, and the defects such as porosity, cracks, and incomplete penetration in the weld seam are analyzed, and the test results are output.
[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.
Claims
1. A straight seam welded pipe weld inspection apparatus comprising an inspection station (1), characterised in that: A surface treatment mechanism (2) is fixedly connected to one side of the top of the testing platform (1), a guide mechanism (3) is fixedly connected to the top of the testing platform (1), and a testing instrument (4) is fixedly connected to the other side of the top of the testing platform (1). The surface treatment mechanism (2) includes a positioning platform (21), the bottom of which is fixedly connected to the detection platform (1). The inner cavity of the positioning platform (21) is movably connected to a conveying roller (22) via a rotating shaft. Positioning columns (23) are provided at the four corners of the top of the positioning platform (21). A top plate (24) is fixedly connected to the top of the positioning column (23). A screw (25) is threadedly connected to the top of the top plate (24). A mounting seat (26) is movably connected to the bottom of the screw (25) via a bearing. A cleaning brush (27) is fixedly connected to the bottom of the mounting seat (26). A collection mechanism (28) is connected to the bottom of the positioning platform (21).
2. A straight seam welded pipe weld inspection apparatus as defined in claim 1 wherein: The collection mechanism (28) includes a fixing plate (281), one side of which is fixedly connected to the detection platform (1). A vacuum cleaner (282) is fixedly connected to the top of the fixing plate (281). A collection cover (283) is connected to the top of the vacuum cleaner (282). A collection pipe (284) is connected to the top of the collection cover (283). The top of the collection pipe (284) passes through the bottom of the detection platform (1) and is connected to the positioning platform (21).
3. A straight seam welded pipe weld inspection apparatus as defined in claim 1 wherein: The guiding mechanism (3) includes a mounting plate (31), the bottom of which is fixedly connected to the detection table (1). Movable tables (32) are provided on both sides of the top of the mounting plate (31), and mounting grooves (33) are provided on both sides of the top of the movable tables (32). Guide rollers (34) are movably connected to the inner cavity of the mounting grooves (33) through a rotating shaft.
4. A straight seam welded pipe weld inspection apparatus as defined in claim 3 wherein: The inner cavity of the mounting plate (31) is movably connected to a lead screw (5) via a bearing. The surface of the lead screw (5) is threadedly connected to the moving table (32). One side of the lead screw (5) extends through to the outside of the mounting plate (31) and is fixedly connected to a throttle (6).
5. A straight seam welded pipe weld inspection apparatus as defined in claim 1 wherein: The bottom of the testing platform (1) is fixedly connected to both sides of a support frame (7), and a crossbar is fixedly connected to one side of the support frame (7).
6. A straight seam welded pipe weld inspection apparatus as defined in claim 2 wherein: The inner cavity of the collection cover (283) is provided with a collection box (8), and the surface of the collection box (8) is provided with a pull rod.
7. A straight seam welded pipe weld inspection apparatus as defined in claim 1 wherein: The positioning platform (21) has limit grooves (9) on both sides, and the bottom of the top plate (24) has limit blocks (10) fixedly connected to both sides. One side of the limit block (10) is fixedly connected to the limit groove (9) by bolts.