Tool and process for sleeving small-gap heavy nested magnet

Abstract

The invention discloses a tool and process for sleeving a small-gap heavy nested magnet, and relates to the technical field of superconducting magnets, the tool comprises a sleeving platform, a fixed supporting mechanism, a first positioning mechanism, a second positioning mechanism, a hooping assembly, a hanging belt and a hanging bracket. The sleeving platform provides a stable installation reference for the fixing and supporting mechanism, the second positioning mechanism and the like, the bearing stability of the whole tool is guaranteed, the fixing and supporting mechanism can abut against and fix the second magnet, displacement of the second magnet in the sleeving process is avoided, and the problem that the fixing stability of the magnet is poor is solved; the first positioning mechanism can accurately guide the falling position of the first magnet, the second positioning mechanism can accurately position the falling position of the first magnet, high-precision coaxial centering of the first magnet and the second magnet is achieved through cooperation of the first positioning mechanism and the second positioning mechanism, the problem of insufficient positioning precision is solved, and the first magnet can be reliably hooped through the hooping assembly and is convenient to disassemble and assemble. And a stable hoisting structure is formed by matching the hoisting belt and the hoisting frame.

Description

Tooling and assembly process for a small-gap heavy-duty nested magnet assembly Technical Field

[0001] This invention relates to the field of superconducting magnet technology, and in particular to a tooling and assembly process for a small-gap heavy-duty nested magnet assembly. Background Technology

[0002] Superconducting magnets, due to their ability to provide high-quality magnetic fields, have found wide and important applications in scientific research. Nested magnet structures, as an important design form of superconducting magnets, are based on the coaxial arrangement of small-diameter and large-diameter coils. This structure allows the magnetic fields generated by the large and small coils to be linearly superimposed within the same aperture. Nested structures not only effectively increase the central field strength or improve the uniformity of the magnetic field distribution without significantly increasing the outer diameter of the magnet, enabling multifunctional integration of the magnet, but also require only one cryogenic container, significantly reducing liquid helium volume and heat leakage, and saving installation space and cooling consumption. Crucially, the radial gap size of the nested magnet directly determines its performance. The smaller the radial gap, the closer the inner and outer coils are to the same radius, the more concentrated the equivalent ampere-turns, and thus the higher the central field strength. Simultaneously, it reduces magnetic leakage and the stepped distribution of the magnetic field, providing ample space for multifunctional integration of the magnet. Therefore, minimizing the gap has become an important development trend for nested magnets.

[0003] With the increasing demands of scientific research, the design requirements for heavy-duty nested magnets are becoming increasingly stringent, and the requirements for radial clearance are constantly shrinking, highlighting the growing need for ultra-small clearance designs. However, existing technologies and tooling generally suffer from poor hoisting adaptability, insufficient positioning accuracy, inadequate magnet fixation stability, and insufficient magnet surface protection when assembling heavy-duty nested magnets with small clearances. This makes it difficult to accurately control the coaxiality of the inner and outer magnets during assembly, easily leading to assembly failure due to positioning deviations and magnet displacement, or causing the assembled magnets to fail to meet the designed clearance requirements and performance indicators. Summary of the Invention

[0004] This invention provides a tooling and assembly process for a small-gap heavy-duty nested magnet assembly, which can solve the problems of poor hoisting adaptability, insufficient positioning accuracy, poor magnet fixing stability, and inadequate magnet surface protection in the prior art.

[0005] A fixture for a small-gap heavy-duty nested magnet assembly includes an assembly platform, a fixed support mechanism, a first positioning mechanism, a second positioning mechanism, a clamping assembly, a lifting strap, and a hanger. The assembly platform supports a second magnet located on the outside. The fixed support mechanism is connected to the assembly platform and is used to press and fix the second magnet during assembly. The first positioning mechanism is connected to the fixed support mechanism and is used to guide the placement of the first magnet. The second positioning mechanism is connected to the assembly platform and is used to position the first magnet. The clamping assembly is detachably connected to the first magnet and is used to clamp the first magnet. One end of the lifting strap is connected to the clamping assembly. The hanger is connected to the end of the lifting strap away from the clamping assembly and is used to lift the first magnet.

[0006] The present invention provides a small-gap heavy-duty nested magnet assembly tooling, which, compared with the prior art, has the following beneficial effects, but is not limited to: The small-gap heavy-duty nested magnet assembly tooling provides a stable installation benchmark for the fixed support mechanism, the second positioning mechanism, etc., through the assembly platform, ensuring the overall load-bearing stability of the tooling; the fixed support mechanism can tightly fix the second magnet, preventing displacement of the second magnet during assembly and solving the problem of poor magnet fixing stability; the first positioning mechanism can accurately guide the first magnet to its placement, and the second positioning mechanism can accurately position the first magnet; the two work together to achieve high-precision coaxial alignment of the first and second magnets, solving the problem of insufficient positioning accuracy; the clamping component can reliably clamp the first magnet and facilitate disassembly and assembly; and the slings and hangers form a stable lifting structure, wherein the hanger can achieve smooth lifting of the first magnet through the slings, solving the problem of poor lifting adaptability.

[0007] Furthermore, the fixed support mechanism includes an installation frame, the bottom of which is connected to the mounting platform. The installation frame is provided with multiple clamping components in its circumference, and multiple reinforcing rods are provided inside the installation frame. Support rods are connected inside the installation frame.

[0008] Furthermore, the clamping assembly includes a threaded rod that is threadedly connected to the mounting frame, with a top block connected to one end of the threaded rod and a rotating block connected to the other end of the threaded rod.

[0009] Furthermore, the first positioning mechanism includes an adjusting plate, the bottom of which is connected to a fixed support mechanism, and guide blocks are connected to both ends of the adjusting plate, with guide wheels provided on the guide blocks.

[0010] Furthermore, the adjusting plate includes a first plate body, and a second plate body is detachably connected to both ends of the first plate body by adjusting bolts. The first plate body has a plurality of adjusting screw holes adapted to the adjusting bolts.

[0011] Furthermore, the second positioning mechanism includes a first positioning block and a second positioning block. Both the first positioning block and the second positioning block are detachably connected to the mounting platform via positioning bolts. The first positioning block is located outside the first magnet, and the second positioning block is located inside the second magnet.

[0012] Furthermore, the assembly platform is provided with multiple positioning screw holes that are compatible with the positioning bolts.

[0013] Furthermore, the clamping assembly includes a first clamp and a second clamp, both of which are provided with connectors at their ends. The connectors are connected to one end of the sling, and adjacent connectors are detachably connected by fixing bolts. Both the first clamp and the second clamp are provided with silicone protective plates on their inner sides.

[0014] Furthermore, the top of the hanger is provided with multiple lifting lugs, and the bottom of the hanger is provided with multiple mounting holes at equal intervals in the horizontal direction to match the slings.

[0015] A process for a small-gap heavy-duty nested magnet assembly, based on the aforementioned small-gap heavy-duty nested magnet assembly tooling, includes the following steps: S1, placing the assembly platform in a horizontal working area, and installing and adjusting a second positioning mechanism on the assembly platform according to the theoretical positions of the second and first magnets; S2, hoisting the second magnet to its position on a preset support surface of the assembly platform, and using the second positioning mechanism for initial positioning; S3, installing a fixed support mechanism on the assembly platform to fix the inner wall of the second magnet, and installing a first positioning mechanism on the fixed support mechanism for guidance; S4, assembling and locking the clamping assembly to the outer wall of the first magnet, connecting it to the hanger via a sling, and adjusting the length of the sling to keep the upper surface of the first magnet horizontal; S5, hoisting the first magnet directly above the second magnet, slowly lowering it so that the top of the first magnet first contacts the first positioning mechanism for centering guidance, and then the bottom contacts the second positioning mechanism to complete precise positioning, until it is fully in place. Attached Figure Description

[0016] Figure 1 is a structural schematic diagram of a small-gap heavy-duty nested magnet assembly tooling according to an embodiment of the present invention; Figure 2 is an installation schematic diagram of a small-gap heavy-duty nested magnet assembly tooling according to an embodiment of the present invention; Figure 3 is a top view of a small-gap heavy-duty nested magnet assembly tooling according to an embodiment of the present invention; Figure 4 is a structural schematic diagram of the fixed support mechanism in Figure 1; Figure 5 is a structural schematic diagram of the clamping assembly in Figure 1; Figure 6 is a structural schematic diagram of the hanger in Figure 1; Figure 7 is a partial enlarged view of point A in Figure 4; Figure 8 is a process flow diagram of the small-gap heavy-duty nested magnet assembly process according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Set platform; 2. Fixed support mechanism; 3. First positioning mechanism; 4. Second positioning mechanism; 5. Clamping assembly; 6. Lifting strap; 7. Hanger; 8. First magnet; 9. Second magnet; 10. Positioning screw hole; 11. Lifting lug; 12. Mounting hole; 21. Mounting frame; 22. Tightening assembly; 23. Reinforcing rod; 24. Support rod; 221. Threaded rod; 222. Top block; 223. Rotating block; 31. Adjusting plate; 32. Guide block; 33. Guide wheel; 311. First plate; 312. Second plate; 313. Adjusting bolt; 314. Adjusting screw hole; 41. First positioning block; 42. Second positioning block; 43. Positioning bolt; 51. First clamp; 52. Second clamp; 53. Connector; 54. Fixing bolt; 55. Silicone protective plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] As shown in Figures 1-3, an embodiment of the present invention provides a small-gap heavy-duty nested magnet assembly tooling, including an assembly platform 1, a fixed support mechanism 2, a first positioning mechanism 3, a second positioning mechanism 4, a clamping assembly 5, a lifting strap 6, and a hanger 7. The assembly platform 1 is used to support the second magnet 9 located on the outside; the fixed support mechanism 2 is connected to the assembly platform 1 and is used to press and fix the second magnet 9 during the assembly process; the first positioning mechanism 3 is connected to the fixed support mechanism 2 and is used to guide the placement of the first magnet 8; the second positioning mechanism 4 is connected to the assembly platform 1 and is used to position the placement of the first magnet 8; the clamping assembly 5 is detachably connected to the first magnet 8 and is used to clamp the first magnet 8; one end of the lifting strap 6 is connected to the clamping assembly 5; the hanger 7 is connected to the end of the lifting strap 6 away from the clamping assembly 5 and is used to lift the first magnet 8.

[0025] In this embodiment, the assembly platform 1 provides a stable installation reference for the fixed support mechanism 2, the second positioning mechanism 4, etc., ensuring the overall load-bearing stability of the tooling. The fixed support mechanism 2 can tighten and fix the second magnet 9, preventing the second magnet 9 from shifting during the assembly process and solving the problem of poor magnet fixing stability. The first positioning mechanism 3 can accurately guide the first magnet 8 to its position, and the second positioning mechanism 4 can accurately position the first magnet 8. The two work together to achieve high-precision coaxial alignment of the first magnet 8 and the second magnet 9, solving the problem of insufficient positioning accuracy. The clamping component 5 can reliably clamp the first magnet 8 and facilitate disassembly and assembly. Together with the sling 6 and the hanger 7, a stable hoisting structure is formed. The hanger 7 can achieve stable hoisting of the first magnet 8 through the sling 6, solving the problem of poor hoisting adaptability.

[0026] As shown in Figures 1 and 4, the fixed support mechanism 2 includes an installation frame 21. The bottom of the installation frame 21 is connected to the set platform 1. Multiple clamping components 22 are arranged around the installation frame 21. Multiple reinforcing rods 23 are arranged inside the installation frame 21. Support rods 24 are connected inside the installation frame 21.

[0027] In this embodiment, the bottom of the mounting frame 21 is connected to the mounting platform 1, providing a stable mounting reference for the entire fixed support mechanism 2. Multiple tightening components 22 arranged circumferentially on the mounting frame 21 can uniformly apply tightening force from multiple circumferential directions on the second magnet 9, achieving comprehensive and stable fixation of the second magnet 9. This effectively prevents the second magnet 9 from shifting when the first magnet 8 is mounted, solving the problem of poor magnet fixation stability in the prior art. Multiple reinforcing rods 23 arranged inside the mounting frame 21 cooperate with the connected support rods 24, significantly enhancing the overall structural rigidity and load-bearing strength of the mounting frame 21. This allows it to resist the reaction force applied by the tightening components 22 and the gravity of the second magnet 9, preventing deformation of the mounting frame 21 and further ensuring the stability of the tightening and fixing effect.

[0028] As shown in Figures 1 and 4, the clamping assembly 22 includes a threaded rod 221, which is threadedly connected to the mounting frame 21. One end of the threaded rod 221 is connected to a top block 222, and the other end of the threaded rod 221 is connected to a rotating block 223.

[0029] In this embodiment, the threaded rod 221 is threadedly connected to the mounting frame 21. The self-locking property of the threaded drive can be used to maintain a stable clamping force. At the same time, the clamping depth can be precisely adjusted by rotating the threaded rod 221 to accommodate second magnets 9 with different inner diameters, thus improving the compatibility of the component. The top block 222 connected to one end of the threaded rod 221 increases the contact area with the second magnet 9, which can disperse the clamping pressure and avoid damage to the magnet surface due to excessive local pressure. It also improves the stability of the clamping contact and prevents slippage at the clamping point. The rotating block 223 connected to the other end of the threaded rod 221 provides a convenient force application point for the operator, allowing easy rotation of the threaded rod 221 to complete the clamping or loosening operation.

[0030] As shown in Figures 2 and 4, the first positioning mechanism 3 includes an adjusting plate 31. The bottom of the adjusting plate 31 is connected to the fixed support mechanism 2. Guide blocks 32 are connected to both ends of the adjusting plate 31, and guide wheels 33 are provided on the guide blocks 32.

[0031] In this embodiment, the bottom of the adjusting plate 31 is connected to the fixed support mechanism 2, providing a stable installation foundation for the entire first positioning mechanism 3 and ensuring that the mechanism itself will not deviate during the guiding process. The guide blocks 32 connected to both ends of the adjusting plate 31 form a symmetrical guiding structure, which can limit and guide the first magnet 8 from both sides, preventing the first magnet 8 from deviating to the left or right during the placement process, effectively improving the guiding accuracy and solving the problem of insufficient positioning accuracy in the prior art. The guide wheels 33 set on the guide blocks 32 convert the sliding friction between the first magnet 8 and the guide blocks 32 when it is placed into rolling friction, which greatly reduces the friction during the guiding process, making the placement of the first magnet 8 smoother.

[0032] As shown in Figures 2 and 4, the adjusting plate 31 includes a first plate body 311. Both ends of the first plate body 311 are detachably connected to a second plate body 312 via adjusting bolts 313. The first plate body 311 has multiple adjusting screw holes 314 that are adapted to the adjusting bolts 313.

[0033] In this embodiment, the first plate 311 provides a stable foundation for the installation of the second plates 312 at both ends. The first plate 311 is detachably connected to the second plates 312 at both ends by adjusting bolts 313. With the help of multiple adjusting screw holes 314 on the first plate 311, the installation position of the second plates 312 on the first plate 311 can be flexibly adjusted according to the actual diameter of the first magnet 8. This adjusts the distance between the two ends of the adjusting plate 31, so that the distance between the guide block 32 and the guide wheel 33 connected to the second plate 312 matches the diameter of the first magnet 8. This ensures that the first positioning mechanism 3 can adapt to the positioning and guiding requirements of first magnets 8 with different diameters, effectively solving the problem of poor adaptability of positioning mechanisms in the prior art. It eliminates the need to design positioning components separately for magnets of different specifications, reducing the manufacturing cost and replacement difficulty of the tooling.

[0034] As shown in Figures 2 and 4, the second positioning mechanism 4 includes a first positioning block 41 and a second positioning block 42. Both the first positioning block 41 and the second positioning block 42 are detachably connected to the mounting platform 1 by positioning bolts 43. The first positioning block 41 is located outside the first magnet 8, and the second positioning block 42 is located inside the second magnet 9.

[0035] In this embodiment, the first positioning block 41 and the second positioning block 42 are respectively arranged on the outside of the first magnet 8 and the inside of the second magnet 9. The bidirectional limiting structure formed by the two can provide dual positioning constraints from the radially outer side of the bottom end of the first magnet 8 and the radially inner side of the second magnet 9, ensuring that the relative position of the first magnet 8 and the second magnet 9 accurately matches the design requirements after the first magnet 8 is placed, greatly improving the coaxiality of the nested magnets and effectively solving the problem of insufficient positioning accuracy in the prior art. The first positioning block 41 and the second positioning block 42 are detachably connected to the mounting platform 1 by positioning bolts 43. The installation position of the two positioning blocks on the mounting platform 1 can be flexibly adjusted according to the size of the first magnet 8 and the second magnet 9 of different diameters and the small gap design requirements, so that the positioning structure is always consistent with the theoretical position of the magnet, improving the adaptability of the tooling to nested magnets of different specifications and small gaps. At the same time, the detachable connection method facilitates the maintenance, replacement and disassembly of the positioning blocks, reducing the use cost and operation difficulty of the tooling.

[0036] As shown in Figures 2 and 4, the platform 1 has multiple positioning screw holes 10 that are compatible with the positioning bolts 43.

[0037] In this embodiment, the multiple positioning screw holes 10 on the mounting platform 1 provide multiple sets of optional installation positions for the first positioning block 41 and the second positioning block 42. With the detachable connection of the positioning bolts 43, the relative positions of the first positioning block 41 and the second positioning block 42 on the mounting platform 1 can be flexibly adjusted according to the size parameters of the first magnet 8 and the second magnet 9 of different diameters and the small gap nesting design requirements. This ensures that the two positioning blocks are always precisely matched with the theoretical positioning position of the magnets, which effectively improves the adaptability of the tooling to small gap nested magnets of different specifications and solves the problem of poor adaptability of the positioning mechanism in the prior art.

[0038] As shown in Figures 5 and 6, the clamping assembly 5 includes a first clamp 51 and a second clamp 52. Both the first clamp 51 and the second clamp 52 are provided with connectors 53 at their ends. The connectors 53 are connected to one end of the sling 6, and adjacent connectors 53 are detachably connected by fixing bolts 54. Both the first clamp 51 and the second clamp 52 are provided with silicone protective plates 55 on their inner sides.

[0039] In this embodiment, the first clamp 51 and the second clamp 52 form a split structure, and the connecting parts 53 at their ends are detachably connected by fixing bolts 54. This allows the clamp to be tightly fitted to the outer wall of the first magnet 8 by tightening the fixing bolts 54, ensuring the clamping and fixing stability of the first magnet 8 during hoisting and preventing the magnet from shaking or falling off. It also allows the clamping range of the clamp to be flexibly adjusted according to the outer diameter of the first magnet 8, improving the adaptability of the component to magnets with different outer diameters. The silicone protective plate 55 provided on the inner side of the first clamp 51 and the second clamp 52 can buffer the pressure between the clamp and the magnet surface during clamping, preventing the rigid structure of the clamp from scratching the surface of the first magnet 8.

[0040] As shown in Figures 3 and 6, the top of the hanger 7 is provided with multiple lifting lugs 11, and the bottom of the hanger 7 is provided with multiple mounting holes 12 at equal intervals in the horizontal direction to match the sling 6.

[0041] In this embodiment, multiple lifting lugs 11 provided on the top of the gantry 7 can provide multiple sets of lifting connection points, which can adapt to the hook connection requirements of different types of lifting equipment. At the same time, the lifting points can be flexibly selected according to the lifting operation space, improving the connection adaptability between the gantry 7 and the lifting equipment. Multiple mounting holes 12 with equal spacing in the horizontal direction at the bottom of the gantry 7, which are adapted to the slings 6, can provide multiple sets of sling connection positions. This allows for flexible adjustment of the connection points of the slings 6 on the gantry 7 according to the outer diameter specifications of the first magnet 8 and the installation position of the clamping component 5, so that the force points of the multiple slings 6 are evenly distributed. This ensures that the upper surface of the first magnet 8 remains horizontal during the lifting process, avoids the magnet tilting due to uneven force, and adapts to the lifting requirements of first magnets 8 with different outer diameter specifications, effectively solving the problem of poor lifting adaptability in the prior art.

[0042] As shown in Figure 8, a process for a small-gap heavy-duty nested magnet assembly, based on the aforementioned small-gap heavy-duty nested magnet assembly fixture, includes the following steps: S1, placing the assembly platform 1 in a horizontal working area, and installing and adjusting the second positioning mechanism 4 on the assembly platform 1 according to the theoretical positions of the second magnet 9 and the first magnet 8; S2, hoisting the second magnet 9 to its position on the preset support surface of the assembly platform 1, and using the second positioning mechanism 4 for initial positioning; S3, installing the fixed support mechanism 2 on the assembly platform 1 to fix the inner wall of the second magnet 9, and installing the first positioning mechanism 3 on the fixed support mechanism 2 for guidance; S4, assembling and locking the clamping assembly 5 to the outer wall of the first magnet 8, connecting it to the hanger 7 through the sling 6, and adjusting the length of the sling 6 to keep the upper end of the first magnet 8 horizontal; S5, hoisting the first magnet 8 directly above the second magnet 9, slowly lowering it so that the top of the first magnet 8 first contacts the first positioning mechanism 3 for centering guidance, and then the bottom contacts the second positioning mechanism 4 to complete precise positioning, until it is fully in place.

[0043] In this embodiment, by placing the assembly platform 1 in a horizontal area and adjusting the second positioning mechanism 4 according to the theoretical position of the magnet, a precise reference is provided for the subsequent magnet assembly; the second magnet 9 is supported by the preset support surface of the assembly platform 1, and the second positioning mechanism 4 achieves initial positioning to ensure the accuracy of the initial position of the second magnet 9; the fixed support mechanism 2 is installed to fix the inner wall of the second magnet 9 to prevent the second magnet 9 from shifting during the assembly process, and the first positioning mechanism 3 is installed to guide the first magnet 8 to be placed, improving the stability of the assembly process; by assembling the clamping component 5 on the outer wall of the first magnet 8 and connecting it to the hanger 7 through the sling 6, the length of the sling 6 is adjusted to make the upper surface of the first magnet 8 horizontal, and the adaptability of the multiple lifting lugs 11 and multiple mounting holes 12 of the hanger 7 and the clamping component 5 are utilized. The system ensures stable clamping performance, solves the problem of poor hoisting adaptability, and ensures a smooth hoisting process. By hoisting the first magnet 8 directly above the second magnet 9, the top is guided by the guide wheel 33 of the first positioning mechanism 3 for top-end centering, and then the bottom is precisely positioned by the first positioning block 41 and the second positioning block 42 of the second positioning mechanism 4. This achieves two-stage positioning, significantly improving the coaxiality of the first magnet 8 and the second magnet 9, solving the problem of insufficient positioning accuracy, and ultimately meeting the high-precision assembly requirements of small-gap heavy nested magnets. Combined with the structural synergy of the assembly platform 1, the second positioning mechanism 4, the fixed support mechanism 2, the first positioning mechanism 3, the clamping component 5, the sling 6, and the hanger 7, the system can systematically solve the problems of poor hoisting adaptability, insufficient positioning accuracy, and poor magnet fixing stability in the existing technology.

[0044] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A tooling for a small-gap heavy-duty nested magnet assembly, characterized in that, include: A set platform (1) is used to support a second magnet (9) located on the outside. Fixed support mechanism (2), which is connected to the assembly platform (1) and is used to press and fix the second magnet (9) during the assembly process; first positioning mechanism (3), which is connected to the fixed support mechanism (2) and is used to guide the placement of the first magnet (8); second positioning mechanism (4), which is connected to the assembly platform (1) and is used to position the placement of the first magnet (8); clamping assembly (5), which is detachably connected to the first magnet (8) and is used to clamp the first magnet (8); sling (6), one end of which is connected to the clamping assembly (5); hanger (7), which is connected to the end of the sling (6) away from the clamping assembly (5) and is used to hoist the first magnet (8).

2. The small-gap heavy-duty nested magnet assembly tooling as described in claim 1, characterized in that, The fixed support mechanism (2) includes an installation frame (21), the bottom of which is connected to the set platform (1). The installation frame (21) is provided with multiple clamping components (22) in the circumferential direction. The installation frame (21) is provided with multiple reinforcing rods (23) inside. The installation frame (21) is connected with support rods (24).

3. The small-gap heavy-duty nested magnet assembly tooling as described in claim 2, characterized in that, The clamping assembly (22) includes a threaded rod (221), which is threadedly connected to the mounting frame (21). One end of the threaded rod (221) is connected to a top block (222), and the other end of the threaded rod (221) is connected to a rotating block (223).

4. The small-gap heavy-duty nested magnet assembly tooling as described in claim 1, characterized in that, The first positioning mechanism (3) includes an adjusting plate (31), the bottom of which is connected to the fixed support mechanism (2), and guide blocks (32) are connected to both ends of the adjusting plate (31), and guide wheels (33) are provided on the guide blocks (32).

5. The small-gap heavy-duty nested magnet assembly tooling as described in claim 4, characterized in that, The adjusting plate (31) includes a first plate body (311), and a second plate body (312) is detachably connected to both ends of the first plate body (311) by adjusting bolts (313). The first plate body (311) has a plurality of adjusting screw holes (314) that are adapted to the adjusting bolts (313).

6. The small-gap heavy-duty nested magnet assembly tooling as described in claim 1, characterized in that, The second positioning mechanism (4) includes a first positioning block (41) and a second positioning block (42). Both the first positioning block (41) and the second positioning block (42) are detachably connected to the mounting platform (1) by positioning bolts (43). The first positioning block (41) is located outside the first magnet (8), and the second positioning block (42) is located inside the second magnet (9).

7. The small-gap heavy-duty nested magnet assembly tooling as described in claim 6, characterized in that, The platform (1) is provided with multiple positioning screw holes (10) that are compatible with the positioning bolts (43).

8. The small-gap heavy-duty nested magnet assembly tooling as described in claim 1, characterized in that, The clamping assembly (5) includes a first clamp (51) and a second clamp (52). Both the first clamp (51) and the second clamp (52) are provided with connectors (53) at their ends. The connectors (53) are connected to one end of the sling (6), and adjacent connectors (53) are detachably connected by fixing bolts (54). Both the first clamp (51) and the second clamp (52) are provided with silicone protective plates (55) on their inner sides.

9. The small-gap heavy-duty nested magnet assembly tooling as described in claim 1, characterized in that, The top of the hanger (7) is provided with multiple lifting lugs (11), and the bottom of the hanger (7) is provided with multiple mounting holes (12) that are compatible with the slings (6) at equal intervals in the horizontal direction.

10. A process for assembling heavy-duty nested magnets with small gaps, characterized in that, The fixture for a small-gap heavy-duty nested magnet assembly as described in any one of claims 1-9 comprises the following steps: S1, placing the assembly platform (1) in a horizontal working area, and installing and adjusting the second positioning mechanism (4) on the assembly platform (1) according to the theoretical positions of the second magnet (9) and the first magnet (8); S2, hoisting the second magnet (9) to place it on the preset support surface of the assembly platform (1), and using the second positioning mechanism (4) for initial positioning; S3, installing the fixed support mechanism (2) on the assembly platform (1) to fix the inner wall of the second magnet (9). S4. Fix the first magnet (8) and install the first positioning mechanism (3) on the fixed support mechanism (2) for guidance; S5. Assemble the clamping assembly (5) on the outer wall of the first magnet (8) and lock it. Connect it to the hanger (7) through the sling (6). Adjust the length of the sling (6) to keep the upper surface of the first magnet (8) horizontal; S6. Hoist the first magnet (8) to the top of the second magnet (9) and slowly lower it so that the top of the first magnet (8) first contacts the first positioning mechanism (3) for centering and guidance, and then the bottom contacts the second positioning mechanism (4) to complete the precise positioning until it is fully in place.

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