A miniaturized shaped superconducting dipole magnet winding device and method for proton therapy

Abstract

The application relates to the technical field of coil winding, and discloses a miniaturized special-shaped superconducting dipole magnet winding device and method for proton treatment, which comprises a circular base and a center column fixedly arranged above the circular base, further comprises a center disc fixed above the center column, an inner slide rail arranged on the outer side of the center disc, a ring-shaped guide rail arranged on the edge of the circular base, a wire pressing part slidingly arranged on the inner slide rail, and a wire pulling part slidingly arranged on the ring-shaped guide rail. The wire pressing part, the wire pulling part, the center disc, the inner slide rail and the wire pressing arm work cooperatively, the circular base rotates to drive the coil framework to revolve, the slide pin dynamically slides along the inner slide rail at a tangent angle, the elasticity compensation of the torsional spring is matched, the wire pressing disc is matched with the irregularly recessed framework surface in the whole process, the dynamic follow-up wire pressing mode breaks the fixed trajectory of the wire pressing structure of the traditional winding equipment, and the center disc, the inner slide rail and the wire pressing arm are matched to solve the problem that the special-shaped superconducting dipole magnet coil cannot be wound by a machine.

Description

Technical Field

[0001] This invention relates to the field of coil winding technology, specifically to a miniaturized irregular superconducting diode magnet winding device and method for proton therapy. Background Technology

[0002] Proton therapy is a widely used cancer radiotherapy technique. It relies on a beam transmission line to guide and confine the proton beam, and uses a rotating gantry to change the beam direction, allowing the particle beam to enter the center of the lesion from different angles. Traditional rotating gantry are equipped with multiple sets of room-temperature diode magnets, quadrupole magnets, and correction magnets. All components rotate synchronously with the gantry. This not only requires stringent beam optics design, but also results in a complex structure, difficulty in stability control, high weight, large size, and large moment of inertia, placing extremely high demands on site, processing, and assembly conditions.

[0003] The industry has developed a C-type miniaturized rotary gantry solution, which adopts a combination structure of a front-end room-temperature diode magnet and an irregularly shaped superconducting diode magnet. By adjusting the magnetic field strength of the room-temperature diode magnet, the incident angle of the proton beam is changed. With the help of the irregularly shaped superconducting diode magnet, the beam is deflected twice. This can achieve a wide range of angle adjustment of the proton beam from 20° to 70°. It can not only accurately control the beam to focus on the center point of the lesion, but also effectively reduce the size, weight and overall complexity of the gantry.

[0004] The irregularly shaped superconducting diode magnet uses a warm iron racetrack-shaped superconducting coil. The coil body has a large concave area, and its shape differs from the ring-shaped or disc-shaped structure of conventional superconducting magnets. Currently, the industry mainly uses traditional winding mechanisms such as vertical winding machines to process superconducting coils. These machines are designed only for coils with regular shapes, and their motion trajectory and operating mode are fixed, making them unsuitable for irregularly shaped coils with concave features. When winding irregularly shaped superconducting diode magnet coils, traditional winding equipment struggles to achieve precise wire pressing, wire bonding, and stable wire routing, easily leading to problems such as wire misalignment, loosening, twisting, and insufficient bonding, which cannot guarantee coil forming accuracy and product quality. At the same time, existing conventional winding fixtures lack mechanical structures that can adapt to irregular contours and adjust in multiple dimensions, making it difficult to meet the production requirements of this type of special coil. This greatly increases the difficulty of winding irregularly shaped superconducting diode magnet coils and also restricts the mass production and widespread use of C-type miniaturized rotary frame equipment. Summary of the Invention

[0005] This invention provides a miniaturized irregular superconducting diode magnet winding device and method for proton therapy, which effectively improves the overall regularity and forming quality of irregular superconducting coils.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: In a first aspect, a miniaturized, irregularly shaped superconducting diode magnet winding device for proton therapy includes: a circular base and a central column fixedly disposed above it, and further includes: The center plate is fixed above the center column; the inner slide rail is located on the outer side of the center plate; the annular guide rail is located on the edge of the circular base; the wire pressing component is slidably mounted on the inner slide rail; the wire pulling component is slidably mounted on the annular guide rail; the coil frame is fixed on the circular base; and the wire reel is located directly above the center column. The wire pressing component includes: a sliding pin, which is slidably disposed in the inner slide rail; a wire pressing arm, which is rotatably disposed on the sliding pin; and a wire pressing disc, which is fixed on the end of the wire pressing arm away from the sliding pin and is used to fit against the surface of the irregular concave coil skeleton. The cable puller includes: a cable puller frame, which is slidably mounted on the edge of a circular base; a slider, which is fixed at the top below the cable puller frame and slidably embedded in an annular guide rail; a displacement plate, which is slidably mounted up and down inside the cable puller frame; a cable puller clamp, which is fixed inside the displacement plate; and a roller, which is rotatably mounted on the end of the cable puller clamp away from the displacement plate.

[0007] Furthermore, an installation groove is provided above the central column, and a rotating hole is provided inside the central column, the rotating hole being connected to the installation groove; The outer surface of the coil frame is provided with threaded holes.

[0008] Furthermore, the wire clamping arm includes: The first adapter is rotatably sleeved on the end of the sliding pin away from the inner slide rail; the first threaded rod is fixed on the first adapter; the first threaded cylinder is threadedly sleeved on the end of the first threaded rod away from the first adapter.

[0009] Furthermore, the wire clamping arm also includes: The first adapter is fixed to the end of the first threaded cylinder away from the first threaded rod; the second adapter seat is rotatably sleeved on the first adapter; the second threaded rod is fixed on the second adapter seat; and the second threaded cylinder is threadedly sleeved on the end of the second threaded rod away from the second adapter seat.

[0010] Furthermore, the wire clamping arm also includes: The second adapter is fixed on the end of the second threaded cylinder away from the second threaded rod; the third adapter seat is rotatably sleeved on the second adapter; the clamping plate is fixed on the third adapter seat at one end and rotatably sleeved on the pressure plate at the other end.

[0011] Furthermore, the pull wire component also includes: The system includes four stroke grooves, which are equally spaced on the inner sides of the pull wire frame; four stroke columns, which are equally fixed on both sides of the displacement plate and slidably embedded in the four stroke grooves; two mandrels, which are fixed below the pull wire frame; and two sleeves, which are rotatably sleeved on the mandrels.

[0012] Furthermore, it also includes: The clamp is bolted to the threaded hole on the outer surface of the coil frame; the mating hole is opened on both sides of the clamp; the cylinder seat is fixed on both sides of the clamp; the torsion shaft is rotatably embedded in the cylinder seat; the spring is fixed on the torsion shaft; a torsion spring is provided inside the cylinder seat; the positioning rod is rotatably inserted into the rotating hole at the bottom and rotatably inserted into the wire spool at the top; the mounting plate is fixed on the positioning rod and located in the mounting groove, and located below the wire spool.

[0013] Furthermore, a servo motor is installed above the wire pull frame, and a lead screw is rotatably mounted on the wire pull frame, with the lead screw threaded into the displacement plate.

[0014] Furthermore, torsion springs are provided inside the first adapter, the second adapter, and the third adapter.

[0015] Secondly, a method for a miniaturized, irregularly shaped superconducting diode magnet winding device for proton therapy, comprising the following steps: Step 1: Use an external fixing structure to lock and position the wire puller, positioning rod, and mounting plate, keeping the structure stationary throughout the operation; the external power source is connected to the circular base to drive the circular base to rotate stably; insert the wire reel into the upper end of the positioning rod through the center hole, so that the wire reel is placed stably on the mounting plate, completing the assembly of the superconducting wire feeding unit, and using the dynamic and static separation structure to build a stable wire routing foundation; Step 2: Based on the irregular contour of the coil frame, rotate the first threaded cylinder and the second threaded cylinder respectively to change the combined length of the first threaded rod and the first threaded cylinder, and the second threaded rod and the second threaded cylinder, to complete the overall length adjustment of the wire pressing arm; relying on the elastic force of the torsion springs inside the first adapter, the second adapter, and the third adapter, drive the wire pressing arm to bend towards the central column, so that the wire pressing plate is tightly attached to the outer surface of the coil frame, realizing the adaptive matching of the wire pressing structure to the irregular concave contour; Step 3: Adjust the wire exit direction of the wire reel to be consistent with the rotation direction of the circular base; pass the superconducting wire led out from the wire reel around the roller at the end of the pull clamp, and fix the end of the superconducting wire to the surface of the coil frame; pull the superconducting wire between the roller and the coil frame so that the superconducting wire is embedded in the groove of the pressure plate, and keep the cutting direction of the superconducting wire in the same direction as the rotation direction of the circular base to avoid wire twisting, misalignment and loosening during the winding process; Step 4: Start the external power source to drive the circular base to rotate continuously. The circular base synchronously drives the coil frame, central column and central disk to rotate together. During the rotation of the coil frame, the superconducting wire is wound up and the coil body winding operation is carried out. Due to the limiting constraint of the tensioned superconducting wire, the pressing arm will not rotate synchronously with the circular base. The sliding pin at the end of the pressing arm slides smoothly along the inner slide rail outside the central disk in the form of tangential contact. The pressing disk dynamically presses the wire along the outline of the coil frame throughout the entire process. Step 5: Start the servo motor above the wire puller. The servo motor drives the lead screw to rotate forward or backward, and through the screw drive, it drives the displacement plate to move vertically in a straight line along the stroke groove. The displacement plate synchronously drives the wire puller, roller and superconducting wire to move up and down. The superconducting wire further pulls the pressure plate to make vertical fine adjustments on the surface of the coil skeleton, so that the superconducting wire is wound in layers from top to bottom or from bottom to top, ensuring that the irregular superconducting diode magnet coil is wound evenly and arranged neatly. Step 6: After the irregular superconducting diode magnet coil is wound as a whole, use bolts to pass the clamp through the docking hole and install it on the threaded hole on the surface of the coil skeleton; use the torsion spring inside the cylinder to drive the torsion shaft to rotate, so that the spring is pressed against the surface of the wound coil, and fix and limit the irregular superconducting diode magnet coil to facilitate the subsequent epoxy coating and curing operation.

[0016] The above-described solution of the present invention has at least the following beneficial effects: This invention utilizes a rotating center disc, inner slide rail, and pressure arm in a coordinated manner. The circular base rotates, causing the coil frame to revolve. The sliding pin slides dynamically along the inner slide rail at a tangential angle. With the elastic compensation of the torsion spring, the pressure disc is kept in constant contact with the irregular concave surface of the frame. The dynamic follow-up pressure mode breaks away from the fixed trajectory of traditional winding equipment, which is only suitable for regular circular and disc-shaped coils and cannot follow the contour of irregular concave frames, thus failing to complete the winding of irregular superconducting coils. The rotating center disc, inner slide rail, and pressure arm work together to solve the problem of not being able to machine-wind irregular superconducting diode magnet coils. Furthermore, a servo motor drives the lead screw to rotate, causing the displacement plate to slide precisely vertically along the stroke groove. This, along with the vertical displacement of the linkage roller and the superconducting wire, pulls the pressure disc to make slight vertical adjustments on the surface of the coil frame. This achieves uniform layered winding of irregular curved surface coils from top to bottom and from bottom to top, effectively improving the overall regularity and forming quality of irregular superconducting coils.

[0017] This invention employs a dynamic-static separation layout, with the circular base, coil frame, and wire pressing component being rotary motion structures, while the wire puller, positioning rod, mounting plate, and wire reel remain stationary throughout the entire process. The wire exit direction strictly matches the base's rotation direction, and the wire is closely embedded into the groove of the wire pressing reel, avoiding twisting and loosening issues during the winding of superconducting fine wires, thus ensuring the winding accuracy and yield of superconducting coils. By adopting a dual-stage telescopic adjustment structure with a first threaded rod and a first threaded cylinder, and a second threaded rod and a second threaded cylinder, the overall length of the wire pressing arm can be freely adjusted. Simultaneously, relying on the built-in torsion springs in the first, second, and third adapter seats, multi-directional elastic bending compensation is achieved, adaptively matching various irregular, eccentric, and concave coil contours, significantly improving the universality and adaptability of the tooling, distinguishing it from traditional fixed wire pressing structures. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention; Figure 2 This invention provides a miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy. Figure 1 Enlarged view of point A; Figure 3 This is a schematic diagram of the overall structure of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention from a second perspective. Figure 4 This is a schematic diagram of the central disk structure of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the central column structure of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the pressure plate structure of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the positioning rod structure of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the wire frame structure of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention; Figure 9 This invention provides a miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy. Figure 8 Enlarged view of point B; Figure 10 This is a schematic diagram of the displacement plate structure of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention; Figure 11 This is a flowchart of a miniaturized irregular superconducting diode magnet winding device for proton therapy provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: In the diagram: 1. Circular base; 2. Central column; 201. Mounting groove; 202. Rotating hole; 3. Central disc; 4. Inner slide rail; 5. Annular guide rail; 6. Wire pressing component; 601. Sliding pin; 602. Wire pressing arm; 603. Wire pressing disc; 604. First adapter seat; 605. First threaded rod; 606. First threaded cylinder; 607. First adapter joint; 608. Second adapter seat; 609. Second threaded rod; 6010. Second threaded cylinder; 6011. Second adapter joint 6012. Head; 6013. Third adapter; 6014. Clamping plate; 7. Pull wire assembly; 701. Pull wire bracket; 702. Slider; 703. Displacement plate; 704. Pull wire clamp; 705. Roller; 706. Stroke groove; 707. Stroke column; 708. Mandrel; 709. Sleeve; 8. Coil frame; 9. Wire reel; 10. Threaded hole; 11. Clamping seat; 12. Butt joint hole; 13. Sleeve seat; 14. Torsion shaft; 15. Spring; 16. Positioning rod; 17. Mounting plate. Detailed Implementation

[0020] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0021] like Figures 1 to 11 As shown, an embodiment of the present invention provides a miniaturized irregular superconducting diode magnet winding device for proton therapy, comprising: a circular base 1 and a central column 2 fixedly disposed above it; a central disk 3 fixed above the central column 2; an inner slide rail 4 disposed on the outer side of the central disk 3; an annular guide rail 5 disposed on the edge of the circular base 1; a wire pressing member 6 slidably disposed on the inner slide rail 4; a wire pulling member 7 slidably disposed on the annular guide rail 5; a coil frame 8 fixed on the circular base 1; and a wire reel 9 located directly above the central column 2. The clamp 11 is bolted to the threaded hole 10 on the outer surface of the coil frame 8; the mating hole 12 is opened on both sides of the clamp 11; the cylinder seat 13 is fixed on both sides of the clamp 11; the torsion shaft 14 is rotatably embedded in the cylinder seat 13; the spring 15 is fixed on the torsion shaft 14; a torsion spring is provided inside the cylinder seat 13; the positioning rod 16 is rotatably inserted into the rotating hole 202 at the bottom and rotatably inserted into the wire reel 9 at the top; the mounting plate 17 is fixed on the positioning rod 16 and is located in the mounting groove 201 and below the wire reel 9.

[0022] A mounting groove 201 is provided above the center column 2, and a rotating hole 202 is provided inside the center column 2. The rotating hole 202 is connected to the mounting groove 201; a threaded hole 10 is provided on the outer surface of the coil frame 8.

[0023] Specifically, the central column 2 is vertically fixed on the top surface of the circular base 1, the central disc 3 moves synchronously with the central column 2, the inner slide rail 4 on the outer side provides a sliding path for the wire pressing component 6, and the annular guide rail 5 on the edge of the base is used to support the sliding of the wire pulling component 7; the coil frame 8 is fixed on the circular base 1 and is the base for coil winding, and the threaded hole 10 on its surface is used to assemble the clamp 11. The cylinder seats 13 on both sides of the clamp 11 are equipped with torsion shaft 14, spring sheet 15 and built-in torsion spring, which can press and fix the wound wire; the rotating hole 202 inside the central column 2 and the top mounting groove 201 are used to install the positioning rod 16. The positioning rod 16 and the mounting plate 17 jointly support the wire spool 9 to ensure that the wire spool is placed stably.

[0024] In a preferred embodiment of the present invention, the wire pressing component 6 includes: a sliding pin 601, which is slidably disposed in the inner slide rail 4; a wire pressing arm 602, which is rotatably disposed on the sliding pin 601; and a wire pressing disc 603, which is fixed on the end of the wire pressing arm 602 away from the sliding pin 601 and is used to adhere to the surface of the irregular concave coil skeleton 8.

[0025] The wire pressing arm 602 further includes: a first adapter 604, rotatably sleeved on the end of the sliding pin 601 away from the inner slide rail 4; a first threaded rod 605, fixed on the first adapter 604; a first threaded cylinder 606, threadedly sleeved on the end of the first threaded rod 605 away from the first adapter 604; a first adapter 607, fixed on the end of the first threaded cylinder 606 away from the first threaded rod 605; and a second adapter 608, rotatably sleeved on the first adapter 607; and a second... A threaded rod 609 is fixed on a second adapter 608; a second threaded cylinder 6010 is threadedly sleeved on the end of the second threaded rod 609 away from the second adapter 608; a second adapter 6011 is fixed on the end of the second threaded cylinder 6010 away from the second threaded rod 609; a third adapter 6012 is rotatably sleeved on the second adapter 6011; and a clamping plate 6013 is fixed at one end to the third adapter 6012 and rotatably sleeved on the pressure plate 603 at the other end.

[0026] Specifically, the sliding pin 601 slides freely within the inner slide rail 4, thereby driving the entire wire pressing component 6 to change position; the wire pressing arm 602 achieves multi-angle rotation through a multi-stage adapter structure; the first threaded rod 605 and the first threaded cylinder 606, and the second threaded rod 609 and the second threaded cylinder 6010 achieve length adjustment through thread engagement, which can adapt to coil frames of different specifications; the first adapter 607, the second adapter seat 608, the second adapter 6011, and the third adapter seat 6012 are connected in sequence, and the clamping plate 6013 at the end is used to install the wire pressing plate 603, allowing the wire pressing plate to flexibly adjust its posture and closely fit the surface of the coil frame to complete the wire pressing operation.

[0027] In a preferred embodiment of the present invention, the cable puller 7 includes: a cable puller frame 701, which is slidably disposed on the edge of the circular base 1; a slider 702, which is fixed at the top below the cable puller frame 701 and slidably embedded in the annular guide rail 5; a displacement plate 703, which is slidably disposed up and down in the cable puller frame 701; a cable puller clamp 704, which is fixed in the displacement plate 703; and a roller 705, which is rotatably disposed on the end of the cable puller clamp 704 away from the displacement plate 703.

[0028] The cable puller 7 also includes: four travel grooves 706, which are equally distributed on the inner sides of the cable puller frame 701; four travel columns 707, which are equally distributed on both sides of the displacement plate 703 and slide into the four travel grooves 706; two spindles 708, which are fixed below the cable puller frame 701; and two sleeves 709, which are rotatably sleeved on the spindles 708.

[0029] Specifically, the cable puller 701 slides along the annular guide rail 5 via the bottom slider 702 to achieve overall position adjustment; the travel posts 707 on both sides of the displacement plate 703 engage with the travel grooves 706 inside the cable puller 701, guiding and limiting the vertical sliding of the displacement plate 703. The displacement plate 703 drives the cable puller clamp 704 and roller 705 to move synchronously, with the roller 705 responsible for supporting and guiding the superconducting wire; the spindle 708 and sleeve 709 below the cable puller 701 can assist in combing the wire, preventing deviation and tangling during the cable routing process.

[0030] In a preferred embodiment of the present invention, a servo motor is provided above the wire puller 701, and a lead screw is rotatably provided on the wire puller 701, with the lead screw threaded into the displacement plate 703; torsion springs are provided inside the first adapter 604, the second adapter 608 and the third adapter 6012.

[0031] Specifically, the servo motor outputs power to drive the lead screw to rotate, and the lead screw drives the displacement plate 703 to rise and fall precisely through the thread transmission, thereby controlling the vertical position of the wire; the torsion springs inside the first adapter 604, the second adapter 608, and the third adapter 6012 continuously output elastic force, driving the wire pressing arm 602 to bend inward, ensuring that the wire pressing plate 603 always stays in contact with the surface of the coil frame, adapting to the winding requirements of irregular structures.

[0032] Working principle: In the early stage of tooling operation, the overall assembly and fixing preparation work is completed. The external power source outputs power to drive the circular base 1 to rotate. The external fixing structure fixes the wire frame 701, the positioning rod 16 and the mounting plate 17. During the operation, the three types of structures remain stationary, providing a stable wire routing reference for the winding operation. The brand-new wire reel 9 is inserted by aligning its central hole with the upper end of the positioning rod 16 and is placed stably on the surface of the mounting plate 17, completing the assembly and fixing of the superconducting wire feeding structure and successfully completing the preliminary preparation work for winding the irregular superconducting diode magnet coil.

[0033] According to the irregular contour dimensions of the coil frame 8, the operator can manually rotate the first threaded cylinder 606 to screw it into or out of the surface of the first threaded rod 605, thereby changing the overall length of the combined structure of the first threaded rod 605 and the first threaded cylinder 606; simultaneously rotate the second threaded cylinder 6010 to screw it into or out of the surface of the second threaded rod 609, thereby adjusting the length of the combined structure of the second threaded rod 609 and the second threaded cylinder 6010; the torsion springs assembled inside the first adapter 604, the second adapter 608 and the third adapter 6012 continuously output elastic force, pushing the wire pressing arm 602 to bend and deform towards the central column 2, so that the wire pressing plate 603 at the end of the wire pressing arm 602 fits tightly against the outer surface of the coil frame 8, adapting to the concave irregular structure of the coil frame 8, and ensuring the subsequent winding fit.

[0034] The wire exit direction of the wire reel 9 is consistent with the rotation direction of the circular base 1. The superconducting wire led out from the wire reel 9 passes around the roller 705 mounted at the end of the pull clamp 704. The operator fixes the end of the superconducting wire passing through the roller 705 to the surface of the coil frame 8. The superconducting wire between the pull roller 705 and the coil frame 8 is pulled towards the pressure plate 603, so that the superconducting wire is completely embedded in the internal groove of the pressure plate 603. The direction in which the superconducting wire cuts into the pressure plate 603 is the same as the rotation direction of the circular base 1, which effectively avoids wire twisting, misalignment, and loosening during the winding process.

[0035] As the circular base 1 rotates continuously, it drives the coil frame 8 fixed at the top to rotate synchronously. The rotating coil frame 8 continuously winds up the superconducting wire, gradually completing the winding and forming of the irregular superconducting diode magnet coil. While the circular base 1 rotates, it drives the central column 2 and the central disk 3 to rotate synchronously. The rotating central disk 3 pulls the pressing arm 602 to follow the revolution trajectory. Under the limiting constraint of the superconducting wire, the sliding pin 601 at the end of the pressing arm 602 always maintains a tangent angle and slides smoothly along the inner slide rail 4 opened on the outer side of the central disk 3. It adapts to the irregular concave contour of the coil frame 8 throughout the process and conforms to the winding trajectory to complete the continuous pressing operation.

[0036] The servo motor mounted on the top of the wire drawer 701 can output forward or reverse power to drive the internally mounted lead screw to rotate accordingly. During the rotation of the lead screw, the displacement plate 703 is driven to slide upward or downward along the stroke groove 706 inside the wire drawer 701 through the threaded transmission structure. While the displacement plate 703 slides, it simultaneously drives the wire drawer clamp 704 and roller 705 fixed at the bottom to complete the vertical displacement adjustment. During the vertical movement of the roller 705, the superconducting wire that is attached to the traction surface moves up and down synchronously. The displacement change of the wire drives the pressure plate 603 to make vertical fine-tuning movements on the surface of the coil frame 8, so that the superconducting wire can complete the layered winding from top to bottom or from bottom to top on the surface of the coil frame 8, realizing the overall uniform and regular layered winding operation of the irregular coil.

[0037] After winding, the mating hole 12 of the clamp 11 is installed on the threaded hole 10 on the outer surface of the coil frame 8 by bolts, and then pressed onto the coil after winding by the spring piece 15, so as to facilitate the application of epoxy.

[0038] An embodiment of the present invention provides a method for a miniaturized irregular superconducting diode magnet winding device for proton therapy, the method steps of which are as follows: Step 1: Use an external fixing structure to lock and position the wire puller 701, positioning rod 16, and mounting plate 17, keeping the structure stationary throughout the operation; the external power source is connected to the circular base 1 to drive the circular base 1 to rotate stably; insert the wire reel 9 into the upper end of the positioning rod 16 through the center hole, so that the wire reel 9 is placed stably on the mounting plate 17, completing the assembly of the superconducting wire feeding unit, and using the dynamic and static separation structure to build a stable wire routing foundation; Step 2: Based on the irregular contour of the coil frame 8, rotate the first threaded cylinder 606 and the second threaded cylinder 6010 respectively, and change the combined length of the first threaded rod 605 and the first threaded cylinder 606, and the second threaded rod 609 and the second threaded cylinder 6010 accordingly to complete the overall length adjustment of the wire pressing arm 602; relying on the elastic force of the torsion springs inside the first adapter 604, the second adapter 608, and the third adapter 6012, drive the wire pressing arm 602 to bend towards the central column 2, so that the wire pressing plate 603 fits tightly against the outer surface of the coil frame 8, and realize the adaptive matching of the wire pressing structure to the irregular concave contour; Step 3: Adjust the wire output direction of the wire reel 9 to be consistent with the rotation direction of the circular base 1; pass the superconducting wire led out from the wire reel 9 around the roller 705 at the end of the pull clamp 704, and fix the end of the superconducting wire to the surface of the coil frame 8; pull the superconducting wire between the roller 705 and the coil frame 8 so that the superconducting wire is embedded in the groove of the pressure plate 603, and the cutting direction of the superconducting wire is kept in the same direction as the rotation direction of the circular base 1 to avoid the problems of wire twisting, misalignment and loosening during the winding process; Step 4: Start the external power source to drive the circular base 1 to rotate continuously. The circular base 1 synchronously drives the coil frame 8, the central column 2 and the central disk 3 to rotate together. During the rotation of the coil frame 8, the superconducting wire is wound up to carry out the coil body winding operation. Due to the limiting constraint of the tensioned superconducting wire, the pressing arm 602 will not revolve synchronously with the circular base 1. The sliding pin 601 at the end of the pressing arm 602 slides smoothly along the inner slide rail 4 outside the central disk 3 in the form of tangential contact. The pressing disk 603 dynamically presses the wire along the outline of the coil frame 8 throughout the entire process. Step 5: Start the servo motor above the wire puller 701. The servo motor drives the lead screw to rotate forward or backward, and drives the displacement plate 703 to move vertically along the stroke groove 706 through the screw drive. The displacement plate 703 simultaneously drives the wire puller 704, roller 705 and superconducting wire to move up and down. The superconducting wire further pulls the pressure plate 603 to make vertical fine adjustments on the surface of the coil frame 8, so that the superconducting wire is wound in layers from top to bottom or from bottom to top, ensuring that the irregular superconducting diode magnet coil is wound evenly and arranged neatly. Step 6: After the irregular superconducting diode magnet coil is wound as a whole, use bolts to pass the clamp 11 through the docking hole 12 and install it on the threaded hole 10 on the surface of the coil frame 8; with the help of the torsion spring inside the cylinder seat 13, drive the torsion shaft 14 to rotate, so that the spring piece 15 is pressed on the surface of the wound coil, and fix and limit the irregular superconducting diode magnet coil to facilitate the subsequent epoxy coating and curing operation.

[0039] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles described in the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy, comprising: The circular base and the central column fixedly mounted on it are characterized in that they further include: The center plate is fixed above the center column; the inner slide rail is located on the outer side of the center plate; the annular guide rail is located on the edge of the circular base; the wire pressing component is slidably mounted on the inner slide rail; the wire pulling component is slidably mounted on the annular guide rail; the coil frame is fixed on the circular base; and the wire reel is located directly above the center column. The wire pressing component includes: a sliding pin, which is slidably disposed in the inner slide rail; a wire pressing arm, which is rotatably disposed on the sliding pin; and a wire pressing disc, which is fixed on the end of the wire pressing arm away from the sliding pin and is used to fit against the surface of the irregular concave coil skeleton. The cable puller includes: a cable puller frame, which is slidably mounted on the edge of a circular base; a slider, which is fixed at the top below the cable puller frame and slidably embedded in an annular guide rail; a displacement plate, which is slidably mounted up and down inside the cable puller frame; a cable puller clamp, which is fixed inside the displacement plate; and a roller, which is rotatably mounted on the end of the cable puller clamp away from the displacement plate.

2. The miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy according to claim 1, characterized in that, An installation groove is provided above the central column, and a rotating hole is provided inside the central column, which is connected to the installation groove. The outer surface of the coil frame is provided with threaded holes.

3. The miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy according to claim 1, characterized in that, The wire clamping arm includes: The first adapter is rotatably sleeved on the end of the sliding pin away from the inner slide rail; the first threaded rod is fixed on the first adapter; the first threaded cylinder is threadedly sleeved on the end of the first threaded rod away from the first adapter.

4. A miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy according to claim 3, characterized in that, The wire clamping arm also includes: The first adapter is fixed to the end of the first threaded cylinder away from the first threaded rod; the second adapter seat is rotatably sleeved on the first adapter; the second threaded rod is fixed on the second adapter seat; and the second threaded cylinder is threadedly sleeved on the end of the second threaded rod away from the second adapter seat.

5. A miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy according to claim 4, characterized in that, The wire clamping arm also includes: The second adapter is fixed on the end of the second threaded cylinder away from the second threaded rod; the third adapter seat is rotatably sleeved on the second adapter; the clamping plate is fixed on the third adapter seat at one end and rotatably sleeved on the pressure plate at the other end.

6. A miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy according to claim 1, characterized in that, The draw wire component also includes: The system includes four stroke grooves, which are equally spaced on the inner sides of the pull wire frame; four stroke columns, which are equally fixed on both sides of the displacement plate and slidably embedded in the four stroke grooves; two mandrels, which are fixed below the pull wire frame; and two sleeves, which are rotatably sleeved on the mandrels.

7. A miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy according to claim 1, characterized in that, Also includes: The clamp is bolted to the threaded hole on the outer surface of the coil frame; The mating holes are formed on both sides of the clamp; the cylinder seat is fixed on both sides of the clamp; the torsion shaft is rotatably embedded in the cylinder seat; the spring is fixed on the torsion shaft; a torsion spring is provided inside the cylinder seat; the positioning rod is rotatably inserted into the rotating hole at the bottom and rotatably inserted into the wire reel at the top; the mounting plate is fixed on the positioning rod and located in the mounting groove and below the wire reel.

8. A miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy according to claim 1, characterized in that, A servo motor is installed above the wire pull frame, and a lead screw is rotatably mounted on the wire pull frame. The lead screw is threaded into the displacement plate.

9. A miniaturized irregularly shaped superconducting diode magnet winding device for proton therapy according to claim 5, characterized in that, The first adapter, the second adapter, and the third adapter are all equipped with torsion springs inside.

10. A method for winding a miniaturized, irregularly shaped superconducting diode magnet for proton therapy, applied to the miniaturized, irregularly shaped superconducting diode magnet winding device for proton therapy as described in any one of claims 1-9, characterized in that... The steps are as follows: Step 1: Use an external fixing structure to lock and position the wire puller, positioning rod, and mounting plate, keeping the structure stationary throughout the operation; the external power source is connected to the circular base to drive the circular base to rotate stably; insert the wire reel into the upper end of the positioning rod through the center hole, so that the wire reel is placed stably on the mounting plate, completing the assembly of the superconducting wire feeding unit, and using the dynamic and static separation structure to build a stable wire routing foundation; Step 2: Based on the irregular contour of the coil frame, rotate the first threaded cylinder and the second threaded cylinder respectively to change the combined length of the first threaded rod and the first threaded cylinder, and the second threaded rod and the second threaded cylinder, to complete the overall length adjustment of the wire pressing arm; relying on the elastic force of the torsion springs inside the first adapter, the second adapter, and the third adapter, drive the wire pressing arm to bend towards the central column, so that the wire pressing plate is tightly attached to the outer surface of the coil frame, realizing the adaptive matching of the wire pressing structure to the irregular concave contour; Step 3: Adjust the wire exit direction of the wire reel to be consistent with the rotation direction of the circular base; pass the superconducting wire led out from the wire reel around the roller at the end of the pull clamp, and fix the end of the superconducting wire to the surface of the coil frame; pull the superconducting wire between the roller and the coil frame so that the superconducting wire is embedded in the groove of the pressure plate, and keep the cutting direction of the superconducting wire in the same direction as the rotation direction of the circular base to avoid wire twisting, misalignment and loosening during the winding process; Step 4: Start the external power source to drive the circular base to rotate continuously. The circular base synchronously drives the coil frame, central column and central disk to rotate together. During the rotation of the coil frame, the superconducting wire is wound up and the coil body winding operation is carried out. Due to the limiting constraint of the tensioned superconducting wire, the pressing arm will not rotate synchronously with the circular base. The sliding pin at the end of the pressing arm slides smoothly along the inner slide rail outside the central disk in the form of tangential contact. The pressing disk dynamically presses the wire along the outline of the coil frame throughout the entire process. Step 5: Start the servo motor above the wire puller. The servo motor drives the lead screw to rotate forward or backward, and through the screw drive, it drives the displacement plate to move vertically in a straight line along the stroke groove. The displacement plate synchronously drives the wire puller, roller and superconducting wire to move up and down. The superconducting wire further pulls the pressure plate to make vertical fine adjustments on the surface of the coil skeleton, so that the superconducting wire is wound in layers from top to bottom or from bottom to top, ensuring that the irregular superconducting diode magnet coil is wound evenly and arranged neatly. Step 6: After the irregular superconducting diode magnet coil is wound as a whole, use bolts to pass the clamp through the docking hole and install it on the threaded hole on the surface of the coil skeleton; use the torsion spring inside the cylinder to drive the torsion shaft to rotate, so that the spring is pressed against the surface of the wound coil, and fix and limit the irregular superconducting diode magnet coil to facilitate the subsequent epoxy coating and curing operation.

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