A winding type open-close coil magnetic particle flaw detector
By using a servo motor to drive the turntable to rotate and an electric actuator to control the spraying of magnetic suspension liquid from the nozzle, the problem of uneven spraying in the wound-type opening and closing coil magnetic particle flaw detector is solved, improving the clarity and accuracy of flaw detection and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XUNDA FLAW DETECTION TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-12
AI Technical Summary
Existing wound-type opening and closing coil magnetic particle flaw detectors exhibit uneven spraying of magnetic suspension liquid, affecting the clarity of flaw detection.
A servo motor drives the turntable to rotate, and an electric actuator controls the nozzle to approach the object. Combined with automatic spraying of magnetic suspension liquid, uniform spraying is achieved. The electric actuator adjusts the height of the winding coil to adapt to different objects, and the coil is stored for protection when not in use.
It improves the clarity of viewing flaws in items and the accuracy of detection during flaw inspection, while also extending the service life of the equipment.
Smart Images

Figure CN224354370U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic particle flaw detector technology, specifically a wound-type opening and closing coil magnetic particle flaw detector. Background Technology
[0002] Magnetic particle testing is a non-destructive testing device based on the principle of magnetic particle detection. It is mainly used to detect defects such as cracks, inclusions, and folds on and near the surface of ferromagnetic materials. It has a wide range of applications in industrial manufacturing, quality inspection and other fields. Magnetic particle testing utilizes the fact that after ferromagnetic materials are magnetized, the defects cause local distortion of the magnetic field lines, forming a leakage magnetic field. This magnetic field attracts the magnetic powder applied to the surface of the workpiece, forming visible magnetic traces, thereby showing the location, shape and size of the defects.
[0003] Existing wound-type opening and closing coil magnetic particle flaw detectors often require manual spraying of magnetic suspension liquid onto the surface of the object being inspected, which results in uneven spraying and affects the clarity of the flaw detection. Therefore, we propose a wound-type opening and closing coil magnetic particle flaw detector. Utility Model Content
[0004] The purpose of this invention is to provide a wound-type opening and closing coil magnetic particle flaw detector, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wound-type opening and closing coil magnetic particle flaw detector, including a platform, with lifting blocks installed on both sides of the top of the platform, and a wound coil fixed on the top of the lifting blocks;
[0006] A carrier plate is fixedly installed at the top center of the platform, and a servo motor is embedded at the top center of the carrier plate. A turntable is fixedly connected to the outer end of the drive shaft of the servo motor. A bracket is fixedly installed on one side of the top of the platform, and a first electric push rod is fixedly installed on the top of the bracket. The push rod of the first electric push rod moves through the bracket and is fixedly connected to a nozzle.
[0007] By adopting the above technical solution, the item to be inspected is first placed on the top of the turntable. Then, the first electric actuator is activated to drive the nozzle to descend, bringing it close to the item on the turntable. Then, the servo motor is activated to drive the turntable to rotate, thereby causing the material on the turntable to rotate. At the same time, the nozzle sprays magnetic suspension liquid onto the surface of the material, thereby achieving uniform spraying, which helps to improve the clarity of viewing the wounds on the item during subsequent flaw detection.
[0008] In a preferred embodiment of this utility model, grooves are provided on both sides of the top of the platform, the lifting block is inserted into the corresponding groove, and a second electric push rod is fixedly connected to the bottom of the lifting block, with the tail end of the second electric push rod fixedly connected to the bottom of the groove cavity.
[0009] By adopting the above technical solution, the second electric actuator can drive the lifting block to move up and down, thereby adjusting the height of the winding coil and aligning it with items of different heights. This helps to ensure the accuracy of flaw detection. At the same time, when not in use, the winding coil can be lowered and stored in the groove for safekeeping.
[0010] In a preferred embodiment of this utility model, the top of the lifting block is fixedly connected to a cover plate by a support rod.
[0011] By adopting the above technical solution, after the lifting block descends, the cover plate can be used to seal the groove opening, thereby improving the protection effect.
[0012] In a preferred embodiment of this utility model, the length and width of the cover plate are greater than the length and width of the groove cavity.
[0013] By adopting the above technical solution, the cover plate can completely seal the groove, which helps to prevent impurities from entering.
[0014] In a preferred embodiment of this utility model, the top of the turntable is provided with anti-slip texture.
[0015] By adopting the above technical solution, the anti-slip texture increases the friction between the material and the turntable during rotation, which helps to prevent the material from sliding on the turntable.
[0016] In a preferred embodiment of this utility model, a liquid supply pipe is fixedly connected to the top of the nozzle.
[0017] By adopting the above technical solution, the outer end of the liquid supply pipe is connected to the liquid pump, and the liquid pump is connected to the magnetic suspension tank, thereby enabling the magnetic suspension to be supplied into the nozzle.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] The present application provides a wound-type opening and closing coil magnetic particle flaw detector, in which a second electric push rod drives the nozzle to descend and approach the turntable, and then sprays magnetic suspension liquid onto the material on the turntable. A servo motor drives the turntable to rotate, thereby making the material rotate, which helps to improve the uniformity of the sprayed magnetic suspension liquid, and thus helps to improve the clarity of the view during flaw detection.
[0020] The second electric actuator can drive the lifting block to move up and down, which in turn drives the wound coil to move up and down, thus enabling alignment of materials of different thicknesses placed on the turntable, thereby improving the accuracy of flaw detection.
[0021] The second electric push rod can drive the winding coil to descend, so that it can be stored in the groove when not in use and sealed with a cover plate. This helps to prevent the winding coil from being exposed to the outside environment for a long time and thus prevents it from being easily corroded, thereby extending its service life. Attached Figure Description
[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0023] Figure 1 This is a schematic diagram of the overall structure of a wound-type opening and closing coil magnetic particle flaw detector according to the present invention;
[0024] Figure 2 This is a schematic diagram of the disassembled structure of the fixing plate and turntable of a wound-type opening and closing coil magnetic particle flaw detector according to the present invention;
[0025] Figure 3 This is a cross-sectional structural schematic diagram of a wound-type opening and closing coil magnetic particle flaw detector according to the present invention.
[0026] In the picture:
[0027] 1. Stage; 11. Support; 12. First electric actuator; 13. Nozzle; 14. Liquid supply pipe; 15. Carrier plate; 16. Turntable; 17. Servo motor; 18. Groove; 19. Second electric actuator;
[0028] 2. Lifting block; 21. Winding coil; 22. Cover plate. Detailed Implementation
[0029] Please see Figure 1-3 This utility model provides a technical solution: a wound-type opening and closing coil magnetic particle flaw detector, including a platform 1, lifting blocks 2 are installed on both sides of the top of the platform 1, and a wound coil 21 is fixed on the top of the lifting blocks 2;
[0030] A carrier plate 15 is fixedly installed at the top center of the platform 1. A servo motor 17 is embedded at the top center of the carrier plate 15. A turntable 16 is fixedly connected to the outer end of the drive shaft of the servo motor 17. A bracket 11 is fixedly installed on one side of the top of the platform 1. A first electric push rod 12 is fixedly installed on the top of the bracket 11. The push rod of the first electric push rod 12 moves through the bracket 11 and is fixedly connected to the nozzle 13.
[0031] It should be understood that in actual use, the item to be inspected is first placed on top of the turntable 16, then the first electric actuator 12 is activated to drive the nozzle 13 to descend, so that it is close to the item on the turntable 16. Then the servo motor 17 is activated to drive the turntable 16 to rotate, thereby causing the material on the turntable to rotate. At the same time, the nozzle 13 sprays magnetic suspension liquid onto the surface of the material, thereby achieving uniform spraying, which helps to improve the clarity of viewing the wounds on the item during subsequent flaw inspection.
[0032] Furthermore, a liquid supply pipe 14 is fixedly connected to the top of the nozzle 13. The outer end of the liquid supply pipe 14 is connected to a liquid pump, and the liquid pump is connected to a magnetic suspension tank, thereby enabling the supply of magnetic suspension liquid into the nozzle 13.
[0033] Furthermore, the top of the turntable 16 is provided with anti-slip texture. The anti-slip texture increases the friction between the material and the turntable during rotation, which helps to prevent the material from sliding on the turntable 16.
[0034] like Figure 1 and 2 As shown; grooves 18 are provided on both sides of the top of the platform 1, and the lifting block 2 is inserted into the corresponding groove 18. The bottom of the lifting block 2 is fixedly connected to the second electric push rod 19, and the tail end of the second electric push rod 19 is fixedly connected to the bottom of the inner cavity of the groove 18.
[0035] It should be understood that the second electric actuator 19 can drive the lifting block 2 to move up and down, thereby driving the winding coil 21 to adjust its height, thus aligning it with items of different heights, which helps to ensure the accuracy of flaw detection. At the same time, when not in use, it can drive the winding coil 21 to descend and be stored in the groove 18, thereby achieving storage and protection.
[0036] Furthermore, a cover plate 22 is fixedly connected to the top of the lifting block 2 by a support rod. After the lifting block 2 descends, the cover plate 22 can be used to seal the opening of the groove 18, thereby improving the protective effect.
[0037] Furthermore, the length and width of the cover plate 22 are greater than the length and width of the inner cavity of the groove 18, so that the cover plate 22 can completely seal the groove 18, which helps to prevent impurities from entering.
[0038] Furthermore, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the specific embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wound-type opening and closing coil magnetic particle flaw detector, comprising a stage (1), characterized in that: Lifting blocks (2) are installed on both sides of the top of the platform (1), and a winding coil (21) is fixed on the top of the lifting block (2); A carrier plate (15) is fixedly installed at the top center of the platform (1). A servo motor (17) is embedded at the top center of the carrier plate (15). A turntable (16) is fixedly connected to the outer end of the drive shaft of the servo motor (17). A bracket (11) is fixedly installed on one side of the top of the platform (1). A first electric push rod (12) is fixedly installed on the top of the bracket (11). The push rod of the first electric push rod (12) moves through the bracket (11) and is fixedly connected to a nozzle (13).
2. The magnetic particle flaw detector with a wound-type opening and closing coil according to claim 1, characterized in that: The platform (1) has grooves (18) on both sides of its top. The lifting block (2) is inserted into the corresponding groove (18). The bottom of the lifting block (2) is fixedly connected to a second electric push rod (19). The tail end of the second electric push rod (19) is fixedly connected to the bottom of the inner cavity of the groove (18).
3. The magnetic particle flaw detector with a wound-type opening and closing coil according to claim 2, characterized in that: The top of the lifting block (2) is fixedly connected to a cover plate (22) by a support rod.
4. A wound-type opening and closing coil magnetic particle flaw detector according to claim 3, characterized in that: The length and width of the cover plate (22) are greater than the length and width of the inner cavity of the groove (18).
5. A wound-type opening and closing coil magnetic particle flaw detector according to claim 1, characterized in that: The top of the turntable (16) is provided with anti-slip texture.
6. A wound-type opening and closing coil magnetic particle flaw detector according to claim 1, characterized in that: The top of the nozzle (13) is fixedly connected to a liquid supply pipe (14).