Solenoid coil winding tool
By designing a solenoid coil winding fixture, and using a flange and fixture cylinder to support the central skeleton, the deformation problem of the thin-walled central skeleton during the winding process was solved, enabling the production of high-quality solenoid coils and convenient disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-03
AI Technical Summary
In the prior art, the thin-walled central skeleton is prone to deformation during the winding of the solenoid coil, resulting in poor quality of the finished product.
A winding fixture for a solenoid coil was designed, including a flange, a support shaft, and a fixture cylinder. The flange fixes both ends of the central frame, the fixture cylinder supports the inner wall of the central frame, and a separation seam is provided between the assembled sections for easy disassembly.
It effectively reduces the deformation of the central skeleton, ensures smooth winding, improves the quality of finished products, supports the applicability of central skeletons of different lengths, and facilitates coil disassembly.
Smart Images
Figure CN224082320U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of coil winding technology, and more specifically, relates to a winding fixture for solenoid coils. Background Technology
[0002] Solenoid coils, as the core component of electromagnetic conversion, are widely used in energy and power equipment, nuclear fusion devices, tokamak devices, and other applications.
[0003] In related technologies, a solenoid coil is a coil that includes a central frame and has a helical wire wound on the surface of the central frame. The central frame is often a tubular support member that is hollow inside and has flanges at both ends, while the wire is wound around the circumferential surface of the central frame.
[0004] Generally, the effective working area of a solenoid coil is within the central frame. Within this relatively limited space, a larger relative inner diameter results in a larger magnetic flux. Under constraints from various external factors such as wire size, coil current, and system power, reducing the wall thickness of the central frame effectively increases the inner diameter of the solenoid coil. However, when the wall thickness of the central frame is too small, it is prone to deformation during winding, leading to solenoid coil deformation and poor product quality, necessitating improvement. Utility Model Content
[0005] In view of the deficiencies or improvement needs of the prior art, this application provides a winding fixture for solenoid coils, which aims to improve the problem of deformation that may occur in the thin-walled central skeleton during the rotation winding process.
[0006] This application provides a winding fixture for a solenoid coil, specifically including a flange, a support shaft, and a fixture cylinder, wherein:
[0007] The flange is threaded to the outer circumferential surfaces of both axial ends of the tooling cylinder, and the flange has a fixing part for fixed connection with the central frame.
[0008] The support shaft is threaded to the inner surfaces of both axial ends of the tooling cylinder;
[0009] The tooling cylinder includes multiple arc-shaped assembly sections, each of which has a support surface for supporting the inner wall of the central frame. When the tooling cylinder, flange, and support shaft are connected to each other, the multiple assembly sections are arranged sequentially along the circumference, and at least two adjacent assembly sections form a pull-out seam that extends to both ends of the tooling cylinder.
[0010] Compared with the prior art, the above-described technical solution conceived in this application allows for high-stability support of the solenoid coil when winding a solenoid coil. This is achieved by assembling the winding fixture while simultaneously assembling the winding fixture, fixing the two ends of the central frame with flanges, and supporting the inner wall of the central frame with the fixture cylinder, thus ensuring the smooth progress of the winding work.
[0011] Under this design, the winding fixture can provide good support for the thin-walled central skeleton, which can effectively reduce the deformation of the solenoid coil caused by the deformation of the central skeleton, and is conducive to producing a solenoid coil with better finished product quality; even, the wire can be directly wound on the surface of the tooling cylinder of this winding fixture to form a helical coil.
[0012] In addition, since there is a pull-out seam between the two assembly sections that extends to both ends of the tooling cylinder, when the coil winding is completed and the coil needs to be disassembled, the operator can first remove the flanges and support shafts at both ends of the tooling cylinder, and then easily pull out the assembly section inside the central frame to achieve smooth disassembly and removal of the solenoid coil.
[0013] As a further preferred embodiment, the flange includes a connecting sleeve and a connecting ring. The inner circumferential wall of the connecting sleeve is provided with internal threads, and the connecting ring is fixedly sleeved on the outer circumference of the connecting sleeve, serving as a fixing part of the flange.
[0014] As a further preferred embodiment, the surface of the connecting ring is provided with a plurality of mounting holes spaced apart circumferentially.
[0015] As a further preferred embodiment, the surface of the connecting ring has a notch for the wire to pass through.
[0016] As a further preferred embodiment, the width of the extraction slit is 0.1mm-3mm.
[0017] As a further preferred embodiment, the width of the extraction slit is 2 mm.
[0018] As a further preferred embodiment, the axial length of the internal thread in the assembly section is greater than the axial length of the external thread.
[0019] As a further preferred embodiment, the support shaft includes a shaft and a connecting end, the shaft being axially connected to the connecting end, and the circumferential surface of the connecting end being provided with external threads.
[0020] As a further preferred embodiment, the connecting end is a cylindrical end or a tapered end.
[0021] As a further preferred embodiment, the outer end circumferential surface of the shaft has a positioning plane.
[0022] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages:
[0023] 1. The winding fixture designed in this application can provide good support for the thin-walled central skeleton, effectively reducing the deformation of the solenoid coil caused by the deformation of the central skeleton, which is conducive to producing a solenoid coil with better finished product quality; even, wires can be directly wound on the surface of the fixture cylinder to form a helical coil.
[0024] 2. The winding fixture designed in this application adopts an assembly design, which can form a highly stable support for the central skeleton and ensure the smooth progress of the winding work. Since there is a separation seam between the two assembly sections that extends to both ends of the fixture cylinder, when the coil needs to be disassembled, the flanges and support shafts at both ends of the fixture cylinder can be removed first, and then the assembly section inside the central skeleton can be pulled out, so that the solenoid coil can be easily demolded, disassembled and removed.
[0025] 3. By adjusting the axial spiral mounting position of the flanges on the tooling cylinder, the distance between the two flanges can be adjusted, so that this winding tooling can be matched with a central skeleton of different lengths. Attached Figure Description
[0026] Figure 1 This is an overall structural diagram of a winding tooling provided in an embodiment of this application;
[0027] Figure 2 This is an assembly diagram of a winding fixture and a solenoid coil provided in an embodiment of this application;
[0028] Figure 3 This is an exploded view of the cylindrical end, flange, and tooling cylinder provided in the embodiments of this application;
[0029] Figure 4 This is an exploded view of the tapered end, flange, and tooling cylinder provided in the embodiments of this application.
[0030] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:
[0031] 1. Flange; 1-1. Connecting cylinder; 1-2. Connecting ring; 1-3. Mounting hole; 1-4. Notch; 2. Support shaft; 2-1. Shaft; 2-2. Connecting end; 2-3. Positioning plane; 3. Tooling cylinder; 3-1. Assembly section; 3-2. Separation seam; 4. Central frame. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0033] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0034] This application discloses a winding fixture for a solenoid coil. (Refer to...) Figures 1-4 The winding fixture for the solenoid coil includes a flange 1, a support shaft 2, and a fixture cylinder 3. The flange 1 is threaded to the outer circumferential surfaces of both axial ends of the fixture cylinder 3 and has a fixing part for fixed connection with the central frame 4. The support shaft 2 is threaded to the inner surfaces of both axial ends of the fixture cylinder 3, providing support for the fixture cylinder 3. The fixture cylinder 3 includes multiple arc-shaped assembly sections 3-1, each of which has a support surface for supporting the inner wall of the central frame 4. When the fixture cylinder 3, flange 1, and support shaft 2 are connected to each other, the multiple assembly sections 3-1 are arranged sequentially along the circumference, and at least two adjacent assembly sections 3-1 form a pull-out seam 3-2 that extends to both axial ends of the fixture cylinder 3.
[0035] Under this design, when winding a solenoid coil, the central frame 4 of the solenoid coil is assembled into the winding fixture while assembling this winding fixture. The two flanges 1 fix the two ends of the central frame 4 to ensure the coaxiality of the solenoid coil during winding. At the same time, the inner wall of the central frame 4 is supported by the fixture cylinder 3, which can achieve high stability support for the central frame 4 and ensure the smooth progress of the winding work.
[0036] Since there is a separation seam 3-2 between the two assembly sections 3-1 that extends to both ends of the tooling cylinder 3, when the coil winding is completed and the coil needs to be disassembled, the operator can first remove the flange 1 and support shaft 2 at both ends of the tooling cylinder 3, and then easily pull out the assembly section 3-1 inside the central frame 4 to achieve smooth demolding of the solenoid coil.
[0037] In addition, in actual use, the operator can adjust the axial spiral installation position of the flange 1 on the tooling cylinder 3 as needed to adjust the distance between the two flanges 1. This makes the winding tooling suitable for center skeletons 4 of different lengths and has good versatility.
[0038] Furthermore, generally speaking, the effective working area of a solenoid coil is within the central frame 4. Within this relatively limited central space, a larger relative inner diameter of the solenoid coil results in a relatively larger magnetic flux. Under constraints from various external conditions such as wire size, coil current, and system power, reducing the wall thickness of the central frame 4 effectively increases the inner diameter of the solenoid coil. This winding fixture provides excellent support for the relatively thin central frame 4, which is beneficial for manufacturing high-performance solenoid coils. Furthermore, wires can even be directly wound onto the surface of the fixture's cylindrical body to form a coil.
[0039] Furthermore, specifically, such as Figure 3 As shown, both ends of the assembly section 3-1 are provided with internal and external threads. The external thread of the assembly section 3-1 is used to install the flange 1, and the internal thread of the assembly section 3-1 is used to install the support shaft 2. Preferably, the axial length of the internal thread is greater than the axial length of the external thread. With this design, the support shaft 2 can be assembled more deeply into the tooling cylinder 3 relative to the flange 1 to provide stable support for the tooling cylinder 3.
[0040] Furthermore, in some embodiments, the tooling cylinder 3 includes two assembly sections 3-1. When the tooling is wound and assembled, under the inner support of the support shaft 2 and the outer locking of the flange 1, the two assembly sections 3-1 in the tooling cylinder 3 are in a clearance fit state, so that there is a gap between the two assembly sections 3-1, that is, two extraction seams 3-2 are formed.
[0041] In some other embodiments, the opposing ends of the two assembly segments 3-1 abut against each other, while the opposing ends maintain a gap to form a separation seam 3-2. Of course, in other embodiments, the assembly segments 3-1 in the tooling cylinder 3 can also be set to three, four, etc., and the number can be selected according to the requirements.
[0042] Furthermore, in some embodiments, the width of the extraction seam 3-2 is 0.1mm-3mm. Even further, the width of the extraction seam 3-2 is preferably 2mm, which is more suitable and facilitates the extraction of the assembly section 3-1 inside the central frame 4.
[0043] Furthermore, such as Figure 3 As shown, in some embodiments, the flange 1 includes a connecting cylinder 1-1 and a connecting ring 1-2. The inner circumferential wall of the connecting cylinder 1-1 is provided with an internal thread, and the connecting ring 1-2 is fixedly sleeved on the outer circumference of the connecting cylinder 1-1. The connecting ring 1-2 serves as the fixing part of the flange 1 and is used to form a contact connection with the end flange of the central frame 4.
[0044] Furthermore, such as Figure 3As shown, the surface of the connecting ring 1-2 is provided with a plurality of mounting holes 1-3 at intervals along the circumference. The mounting holes 1-3 on the connecting ring 1-2 can be aligned with the through holes of the flange at the end of the central frame 4. By fastening fasteners such as bolts through the mounting holes 1-3 and the through holes, the flange 1 and the central frame 4 can be locked together.
[0045] Furthermore, such as Figure 3 As shown, in some embodiments, the surface of the connecting ring 1-2 has a notch 1-4 for wires to pass through, which corresponds to a through hole on the side wall of the central frame 4. When winding the wire into a coil, the wire can be threaded through the notch 1-4 and the through hole. After the solenoid coil is wound, the terminal block can be installed based on the wire that has passed through the side wall of the central frame 4.
[0046] Furthermore, in some embodiments, the support shaft 2 includes a shaft 2-1 and a connecting end 2-2. The circumferential surface of the connecting end 2-2 is provided with an external thread, and the connecting end 2-2 is used to be threadedly connected to the tooling cylinder 3. The shaft 2-1 is axially connected to the connecting end 2-2, and the outer end of the shaft 2-1 is used to connect to an external rotating power component.
[0047] Furthermore, such as Figure 3 As shown, in some embodiments, the outer end circumferential surface of the shaft 2-1 has a positioning plane 2-3. The positioning plane 2-3 is used to accurately position the shaft 2-1 and the assembly end of the external power component. This helps to prevent relative rotation between the shaft 2-1 and the assembly end of the external power component, ensuring the smooth progress of the winding work.
[0048] Furthermore, in some embodiments, the connecting end 2-2 is a cylindrical end or a tapered end.
[0049] like Figure 3 As shown, in some specific embodiments, the connecting end 2-2 is a cylindrical end.
[0050] like Figure 4 As shown, in some other embodiments, the connecting end 2-2 is a tapered end, and the outer diameter of the connecting end 2-2 gradually decreases along the direction from the shaft 2-1 to the assembly section 3-1; correspondingly, the inner diameter of the internal threads at both ends of the assembly section 3-1 gradually decreases along the direction from both ends of the assembly section 3-1 to the middle, and the internal threads at both ends of the assembly section 3-1 can mesh with the external threads of the corresponding connecting end 2-2.
[0051] In addition, the inner diameter of the external threads at both ends of the assembly section 3-1 gradually decreases from both ends to the middle of the assembly section 3-1, while the internal thread of the flange 1 gradually decreases from the flange 1 to the assembly section 3-1, and the internal thread of the flange 1 can mesh with the external thread of the assembly section 3-1.
[0052] In use, the operator can adjust the depth of the connecting end 2-2 spirally assembled into the tooling cylinder 3 as needed to open up the two assembly sections 3-1 in the tooling cylinder 3 and adjust the distance between the two assembly sections 3-1; then, by assembling the flange 3-1 on the outer periphery of the two assembly sections 3-1, the two assembly sections 3-1 are positioned on the outer periphery, and the size adjustment of the winding tooling is completed.
[0053] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.
[0054] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.
[0055] 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 technical features indicated. 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, "multiple" means two or more, unless otherwise explicitly specified.
[0056] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection 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.
[0057] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A winding jig for a solenoid coil, characterized by comprising: It comprises a flange (1), a support shaft (2) and a tooling cylinder (3), wherein: The flange (1) is threadedly connected to the outer circumferential surface of the axial both ends of the tooling cylinder (3), and the flange (1) has a fixed part for fixed connection with the central framework (4); The support shaft (2) is threadedly connected to the inner surface of the axial both ends of the tooling cylinder (3); The tooling cylinder (3) comprises a plurality of arc-shaped assembly segments (3-1), and each of the plurality of assembly segments (3-1) has a support surface for supporting the inner wall of the central framework (4); when the tooling cylinder (3), the flange (1) and the support shaft (2) are connected with each other, the plurality of assembly segments (3-1) are arranged in sequence in the circumferential direction, and at least two adjacent assembly segments (3-1) form an extraction gap (3-2) penetrating to the axial both ends of the tooling cylinder (3).
2. The winding tool of claim 1, wherein The flange (1) comprises a connecting cylinder (1-1) and a connecting ring (1-2), the inner circumferential wall of the connecting cylinder (1-1) is provided with an internal thread, and the connecting ring (1-2) is fixedly sleeved on the outer periphery of the connecting cylinder (1-1), and the connecting ring (1-2) serves as the fixed part of the flange (1).
3. The winding tool of claim 2, wherein, A plurality of mounting holes (1-3) are arranged on the surface of the connecting ring (1-2) in the circumferential direction.
4. The winding fixture as described in claim 2, characterized in that, The surface of the connecting ring (1-2) has a notch (1-4) for the lead wire to penetrate.
5. The winding tool of claim 1, wherein, The width of the extraction gap (3-2) is 0.1mm-3mm.
6. The winding tool of claim 5, wherein the first and second winding tools are configured to be used simultaneously. The width of the extraction gap (3-2) is 2mm.
7. The winding tool of claim 1, wherein The axial arrangement length of the internal thread in the assembly segment (3-1) is greater than the axial arrangement length of the external thread.
8. A winding tool according to any one of claims 1-7, characterized in that The support shaft (2) comprises a shaft rod (2-1) and a connecting end head (2-2), the shaft rod (2-1) is axially connected with the connecting end head (2-2), and the circumferential surface of the connecting end head (2-2) is provided with an external thread.
9. The winding fixture as described in claim 8, characterized in that, The connecting end head (2-2) is a cylindrical end head or a conical end head.
10. The winding fixture as described in claim 8, characterized in that, The outer end circumferential surface of the shaft rod (2-1) has a positioning plane (2-3).