Coreless coil winding shaping structure

Abstract

The utility model discloses a coreless coil winding and shaping structure, which comprises a winding assembly and a limiting assembly, the limiting assembly is arranged on the inner side wall of the winding assembly to facilitate the limiting of the winding assembly, the winding assembly comprises a winding die holder and shaping blocks, at least two shaping blocks are arranged at one end of the winding die holder, and the limiting assembly is arranged on the inner side wall of the winding die holder. The shaping blocks extend outwards to be provided with shaping dies, the at least two shaping dies are arranged on one side wall of each shaping block, and through the integrated design of the shaft branches and the shaping blocks and the multi-stage constraint of the limiting blocks, the arc-shaped grooves and the limiting grooves, precise axial and radial positioning of the shaft branches is achieved; the problem of coil interlayer dislocation or uneven density caused by positioning deviation in a traditional process is solved, high stability in the winding process is ensured, the rectangular-semi-arc combined structure of the winding mold base and the shaping block is matched with the detachable limiting assembly, double-layer reverse winding can be completed without disassembling the mold, manual clamping errors are avoided, and the production efficiency is improved. And the symmetry and the consistency of the double-layer coil are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of hollow cup coil technology, specifically to a hollow cup coil winding and shaping structure. Background Technology

[0002] Hollow cup coils, as a coreless rotor structure, are widely used in high-precision fields such as aerospace, precision instruments, medical equipment, and servo motors due to their excellent performance, including low inertia, high efficiency, and fast response. However, the traditional manufacturing process of hollow cup coils has long faced technical bottlenecks such as low efficiency, poor precision, and insufficient automation, which seriously restricts their large-scale application and cost control.

[0003] In the prior art, the winding of hollow cup coils mainly relies on semi-automatic or manual operation. It is necessary to fix the shaft (coil skeleton) manually or with simple clamps, and then use a single-head winding machine to wind a single layer. During the winding process, the positioning deviation of the shaft can easily lead to misalignment or uneven density between coil layers. After the single layer winding is completed, the mold needs to be disassembled and the shaft re-clamped for reverse winding. The operation is cumbersome and it is difficult to ensure the symmetry of the double-layer coil. To solve this problem, the inventors have proposed a hollow cup coil winding shaping structure. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a hollow cup coil winding shaping structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hollow cup coil winding and shaping structure, including a winding assembly and a limiting assembly. The limiting assembly is disposed on the inner side wall of the winding assembly to facilitate limiting the winding assembly. The winding assembly includes a winding mold base and a shaping block. At least two shaping blocks are disposed at one end of the winding mold base. The shaping block extends outward to provide a shaping mold. At least two shaping molds are disposed on one side wall of the shaping block.

[0006] As a further explanation, the shaping block extends inward and is provided with a shaft branch, which is located on the inner sidewall of the shaping block. A winding product is sleeved on the shaft branch, which is located on the inner sidewall of the shaft branch, to facilitate the winding of the coil.

[0007] As further explained, the limiting component includes an upper pressure protective sleeve, which is disposed at one end of the shaft branch, and a lower pressure protective sleeve corresponding to the upper pressure protective sleeve is disposed at one end of the shaft branch.

[0008] As a further explanation, it also includes a groove and a limiting block. The groove is formed on the inner side wall of the shaping block, and the limiting block is provided on the inner side wall of the winding mold base to facilitate the limiting of the shaping block.

[0009] As a further explanation, the limiting block extends outward and has an arc-shaped groove, which is located at one end of the limiting block to facilitate limiting the position of the shaft branch.

[0010] As a further explanation, it also includes a limiting groove, which is formed on the inner sidewall of the shaping block to facilitate the limiting of the shaft branch.

[0011] As a further explanation, it also includes a mounting groove, which is formed on the inner side wall of the winding die base to facilitate the positioning of the limiting block.

[0012] As further explained, the winding mold base is rectangular, and the shaping block is semi-circular.

[0013] In summary, this utility model has the following beneficial effects: The hollow cup coil winding and shaping structure of this utility model, through the integrated design of the shaft branch and the shaping block, combined with the multi-level constraints of the limiting block, arc groove and limiting groove, achieves precise axial and radial positioning of the shaft branch, eliminates the problem of coil layer misalignment or uneven density caused by positioning deviation in traditional processes, and ensures high stability of the winding process. The rectangular-semi-arc combination structure of the winding mold base and the shaping block, together with the detachable limiting components (such as upper pressure protective sleeve and lower pressure protective sleeve), can complete double-layer reverse winding without disassembling the mold, avoid manual clamping errors, and significantly improve the symmetry and consistency of the double-layer coil. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the hollow cup coil winding shaping structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the hollow cup coil winding shaping structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the hollow cup coil winding shaping structure of this utility model;

[0017] Figure 4 This is an exploded view of the hollow cup coil winding shaping structure of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-4As shown, the hollow cup coil winding and shaping structure of this utility model includes a winding assembly and a limiting assembly. The limiting assembly is located on the inner side wall of the winding assembly to facilitate the limiting of the winding assembly. The winding assembly includes a winding mold base 101 and a shaping block 102. At least two shaping blocks 102 are located at one end of the winding mold base 101. A shaping mold 103 extends outward from the shaping block 102. At least two shaping molds 103 are located on one side wall of the shaping block 102. A shaft branch 12 extends inward from the shaping block 102 and is located on the inner side wall of the shaping block 102. A winding product 11 is sleeved on the shaft branch 12 and is located on the inner side wall of the shaft branch 12 to facilitate the winding of the coil.

[0020] Specifically, the winding product 11 (coil skeleton) is fitted inside the shaft branch 12. The shaft branch 12 is radially constrained by the limiting groove 202 on the inner wall of the shaping block 102 to prevent radial displacement during winding. The limiting block 210 on the inner side of the winding mold base 101 is embedded in the groove 201 on the outer side of the shaping block 102 to form a rigid connection, ensuring that the winding mold base 101 and the shaping block 102 are axially aligned. The arc-shaped groove 211 at the end of the limiting block 210 fits against the outer wall of the shaft branch 12 to further restrict the axial movement of the shaft branch 12. The winding machine is started, and the wire is wound around the surface of the winding product 11 along the outer wall of the shaping mold 103. The semi-arc structure of the shaping mold 103 pre-shapes the outer diameter of the coil to prevent the wire from becoming loose.

[0021] After completing a single layer of winding, there is no need to disassemble the mold. The reverse winding path can be planned by rotating the winding mold base 101 or adjusting the direction of the winding machine, taking advantage of the symmetry of the rectangular winding mold base 101.

[0022] The rigid constraint of the limiting component ensures that the shaft branch 12 maintains its initial positioning accuracy during reverse winding, avoiding symmetry deviations caused by re-clamping in traditional processes.

[0023] The limiting component includes an upper pressure protective sleeve 21, which is located at one end of the shaft branch 12, and a lower pressure protective sleeve 22 corresponding to the upper pressure protective sleeve 21 is located at one end of the shaft branch 12.

[0024] Specifically, during the winding process, the upper protective sleeve 21 and the lower protective sleeve 22 press the two ends of the shaft branch 12 respectively, preventing the shaft branch 12 from axial displacement due to tension through friction, and at the same time protecting the ends of the wound product 11 from mechanical damage.

[0025] It also includes a groove 201 and a limiting block 210. The groove 201 is formed on the inner side wall of the forming block 102, and the limiting block 210 is set on the inner side wall of the winding mold base 101 to facilitate the limiting of the forming block 102. The limiting block 210 extends outward and has an arc-shaped groove 211. The arc-shaped groove 211 is set at one end of the limiting block 210 to facilitate the limiting of the position of the shaft branch 12.

[0026] Specifically, the rectangular-semi-arc combination structure of the winding mold base 101 and the shaping block 102 ensures that the wire is evenly distributed during the winding process; the synergistic effect of the limiting block 210 and the arc groove 211 forcibly constrains the rotation angle of the shaft branch 12, ensuring that the turn spacing of the double-layer coil is consistent.

[0027] The limiting groove 202 on the inner side of the shaping block 102 periodically corrects the position of the shaft branch 12, compensates for the small deformation caused by the winding tension in real time, and ensures uniform interlayer density.

[0028] It also includes a limiting groove 202, which is formed on the inner side wall of the shaping block 102 to facilitate the limiting of the shaft branch 12, and an installation groove 212, which is formed on the inner side wall of the winding mold base 101 to facilitate the limiting of the limiting block 210.

[0029] Specifically, after winding is completed, the upper pressure protective sleeve 21 and the lower pressure protective sleeve 22 are loosened, and the limiting block 210 is quickly removed through the mounting slot 212 to release the constraint on the shaping block 102. The wound product 11 with double-layer coils is taken out. The semi-arc contour of the shaping mold 103 provides a guiding function when the coil is demolded, preventing the coil from deforming due to mechanical stress.

[0030] The winding mold base 101 is set as a rectangle, and the shaping block 102 is set as a semi-circular shape.

[0031] Specifically, submicron-level positioning accuracy is achieved through the triple constraints of groove 201-limiting block 210, arc groove 211-shaft branch 12, and limiting groove 202-shaft branch 12, thus solving the positioning deviation problem of traditional processes.

[0032] Reverse winding without disassembly: The symmetrical design of the rectangular winding die 101, combined with the modular limiting components, enables double-layer winding without manual intervention, with a symmetry error of less than 0.1%.

[0033] Dynamic shaping mechanism: The linkage between the shaping mold 103 and the limiting component simultaneously completes the outer diameter shaping and tension compensation of the coil during the winding process, improving product consistency.

[0034] This structure, through the deep integration of mechanical constraints and technological processes, increases the production efficiency of hollow cup coils by more than 300%, and raises the finished product qualification rate from 75% in traditional processes to 98%, providing key technical support for the large-scale manufacturing of hollow cup coils.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hollow cup coil winding and shaping structure, characterized in that: Including winding assemblies; A limiting component is provided on the inner sidewall of the winding assembly to facilitate limiting the winding assembly; The winding assembly includes a winding mold base and a shaping block. At least two shaping blocks are disposed at one end of the winding mold base, and shaping molds are provided on the outward extension of the shaping block. At least two shaping molds are disposed on one side wall of the shaping block.

2. The hollow cup coil winding shaping structure according to claim 1, characterized in that: The shaping block extends inward and is provided with a shaft branch, which is located on the inner side wall of the shaping block. A winding product is sleeved on the shaft branch, which is located on the inner side wall of the shaft branch, to facilitate the winding of the coil.

3. The hollow cup coil winding shaping structure according to claim 2, characterized in that: The limiting component includes an upper pressure protective sleeve, which is disposed at one end of the shaft branch, and a lower pressure protective sleeve corresponding to the upper pressure protective sleeve is disposed at one end of the shaft branch.

4. The hollow cup coil winding shaping structure according to claim 3, characterized in that: It also includes a groove and a limiting block. The groove is formed on the inner side wall of the shaping block, and the limiting block is provided on the inner side wall of the winding mold base to facilitate the limiting of the shaping block.

5. The hollow cup coil winding shaping structure according to claim 4, characterized in that: The limiting block extends outward and has an arc-shaped groove at one end, which facilitates the limiting of the position of the shaft branch.

6. The hollow cup coil winding shaping structure according to claim 5, characterized in that: It also includes a limiting groove, which is formed on the inner side wall of the shaping block to facilitate the limiting of the shaft branch.

7. The hollow cup coil winding shaping structure according to claim 6, characterized in that: It also includes a mounting groove, which is formed on the inner side wall of the winding die base to facilitate the positioning of the limiting block.

8. The hollow cup coil winding shaping structure according to claim 1, characterized in that: The winding mold base is rectangular, and the shaping block is semi-circular.

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