Winding tool

Abstract

The utility model relates to the technical field of winding, and provides a winding tool which comprises a winding framework and a shaft core, a plurality of reinforcing ribs are arranged on the inner wall of the winding framework in the circumferential direction, the shaft core is in clearance fit with the winding framework, the shaft core is provided with arc-shaped limiting grooves in one-to-one correspondence with the reinforcing ribs, and the arc-shaped limiting grooves are in one-to-one correspondence with the reinforcing ribs. The size of the arc-shaped limiting groove in the circumferential direction is larger than that of the reinforcing rib in the circumferential direction, the reinforcing rib is installed in the arc-shaped limiting groove, and when the winding tool rotates to wind in one direction, one side of the arc-shaped limiting groove abuts against the reinforcing rib. According to the utility model, the relative rotation of the winding framework and the shaft core is limited, and the winding framework is convenient to detach.

Description

Technical Field

[0001] This utility model relates to the field of winding technology, and more specifically, to a winding tooling. Background Technology

[0002] A wire winding bobbin is a structural component used to support and wind wires. It is usually made of insulating materials such as plastics and ceramics and has wide applications in electronic equipment. During winding, the wire winding bobbin is typically fitted onto a shaft. The wire winding bobbin and the shaft together form a winding fixture. The shaft is fixed (e.g., with an interference fit) to a rotating shaft, which is connected to the output shaft of a motor. When the motor rotates, it drives the entire winding fixture to rotate, thus achieving the winding process.

[0003] like Figure 1 As shown, in the prior art, the axial and circumferential limiting of the winding bobbin 1 is usually achieved in the following ways: For axial limiting, the winding bobbin 1 is positioned at one end in the axial direction by the positioning step 301 on the rotating shaft 3 and the first fixed plate 4, and the other end is limited by the second fixed plate 5. The second fixed plate 5 is threadedly connected to the rotating shaft 3. After tightening the second fixed plate 5, the axial limiting of the winding bobbin 1 can be achieved. For circumferential limiting, in the prior art, the winding bobbin 1 and the shaft core 2 are usually tightened to limit the relative rotation of the two. However, since the winding bobbin 1 needs to be removed and installed in electronic equipment after winding, the tightening method to limit the relative rotation of the two makes it difficult to remove the winding bobbin 1. Utility Model Content

[0004] The purpose of this utility model is to provide a winding tool to solve the defect of the winding skeleton being difficult to remove due to the circumferential limiting method of the winding skeleton and the shaft core in the prior art.

[0005] This utility model is achieved through the following technical solution:

[0006] A winding fixture includes a winding skeleton and a shaft. The inner wall of the winding skeleton is provided with a plurality of reinforcing ribs along the circumferential direction. The shaft is clearance-fitted with the winding skeleton. The shaft is provided with arc-shaped limiting grooves corresponding to the reinforcing ribs. The circumferential dimension of the arc-shaped limiting grooves is larger than the circumferential dimension of the reinforcing ribs. The reinforcing ribs are installed in the arc-shaped limiting grooves. When the winding fixture rotates in one direction to wind the wire, one side of the arc-shaped limiting groove abuts against the reinforcing rib.

[0007] Optionally, one end of the arc-shaped limiting groove is provided with a limiting stop, and one end of the reinforcing rib abuts against the limiting stop.

[0008] Optionally, the limiting stop edge is provided with a through hole for the reinforcing rib to pass through.

[0009] Optionally, a gap is left between the bottom of the arc-shaped limiting groove and the reinforcing rib.

[0010] Optionally, the central angle corresponding to the arc length of the arc-shaped limiting groove in the circumferential direction is 5°-10°.

[0011] Optionally, the central angle corresponding to the arc length of the arc-shaped limiting groove in the circumferential direction is 8°.

[0012] Optionally, the arc-shaped limiting groove has rounded corners on both sides.

[0013] Optionally, the shaft is made of a metal material.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: In this utility model, the reinforcing rib on the winding skeleton passes into the arc-shaped limiting groove on the shaft core. During use, when the winding fixture rotates in one direction to wind the wire, one side of the arc-shaped limiting groove abuts against the reinforcing rib. Since the winding fixture always rotates in one direction during winding, it effectively restricts the relative rotation between the winding skeleton and the shaft core. At the same time, due to the clearance fit between the shaft core and the winding skeleton, the radial positioning of the winding skeleton is ensured, and the removal of the winding skeleton is also convenient. In addition, since the circumferential dimension of the arc-shaped limiting groove is larger than the circumferential dimension of the reinforcing rib, it can well accommodate the manufacturing error of the reinforcing rib and avoid assembly difficulties caused by the manufacturing error of the reinforcing rib. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure of a winding tool in the prior art;

[0016] Figure 2 A schematic diagram of the structure of a winding tool provided by this utility model;

[0017] Figure 3 A front view of a winding fixture provided by this utility model;

[0018] Figure 4 Rear view of a winding fixture provided by this utility model;

[0019] Figure 5 This is a schematic diagram of the shaft core structure;

[0020] Figure 6 This is the front view of the shaft core;

[0021] Figure 7 This is a schematic diagram of the winding skeleton.

[0022] Reference numerals: 1-winding skeleton, 101-reinforcing rib, 2-shaft core, 201-arc-shaped limiting groove, 202-limiting stop edge, 203-through hole, 3-rotating shaft, 301-positioning step, 4-first fixing plate, 5-second fixing plate. Detailed Implementation

[0023] refer to Figures 2-5 ,as well as Figure 7 A winding fixture includes a winding frame 1 and a shaft 2. The inner wall of the winding frame 1 is provided with several reinforcing ribs 101 along the circumferential direction. The shaft 2 is clearance-fitted with the winding frame 1, ensuring radial positioning of the winding frame 1 while also facilitating its removal. Alternatively, the shaft 2 can be made of a metal material; the specific material is not limited, and other materials such as stainless steel, tool steel, and bearing steel are acceptable.

[0024] The shaft core 2 is provided with arc-shaped limiting grooves 201 corresponding to the reinforcing ribs 101. Alternatively, the arc-shaped limiting grooves 201 have rounded corners on both sides. Alternatively, in this embodiment, the inner wall of the winding skeleton 1 is provided with four reinforcing ribs 101, and four arc-shaped limiting grooves 201 are correspondingly provided on the shaft core 2. It is easy to understand that in other embodiments, other numbers of arc-shaped limiting grooves 201 can be provided.

[0025] During assembly, the winding frame 1 is fitted onto the shaft core 2, and the reinforcing rib 101 is installed in the arc-shaped limiting groove 201. During use, when the winding fixture rotates in one direction to wind the wire, one side of the arc-shaped limiting groove 201 abuts against the reinforcing rib 101. Since the winding fixture always rotates in one direction during winding, it effectively restricts the relative rotation between the winding frame 1 and the shaft core 2.

[0026] The arc-shaped limiting groove 201 has a larger circumferential dimension than the reinforcing rib 101, thus it can better accommodate manufacturing errors of the reinforcing rib 101 and avoid assembly difficulties caused by manufacturing errors of the reinforcing rib 101. In this embodiment, a gap is left between the bottom of the arc-shaped limiting groove 201 and the reinforcing rib 101 to further avoid assembly difficulties caused by manufacturing errors of the reinforcing rib 101.

[0027] One end of the arc-shaped limiting groove 201 is provided with a limiting stop 202, and one end of the reinforcing rib 101 abuts against the limiting stop 202. It is worth noting that in practical applications, the end of the shaft core 2 with the limiting stop 202 can be set towards the second fixing plate 5. If set in this way, the axial displacement of the winding skeleton 1 away from the positioning step 301 can be restricted by the limiting stop 202 on the shaft core 2. That is, the axial limiting of the winding skeleton 1 can be achieved by the shaft core 2 itself, avoiding the second fixing plate 5 from loosening and causing the winding skeleton 1 to wobble during use, or even eliminating the need for the second fixing plate 5.

[0028] The limiting stop 202 is provided with a through hole 203 for the reinforcing rib 101 to pass through. This design allows the winding skeleton 1 to be fitted onto the shaft core 2 from both directions during the assembly of the winding skeleton 1 and the shaft core 2, making the assembly of the winding skeleton 1 and the shaft core 2 more convenient.

[0029] refer to Figure 6The central angle corresponding to the arc length of the arc-shaped limiting groove 201 in the circumferential direction is 5°-10°. In practical applications, after the reinforcing rib 101 passes through the through hole 203 into the arc-shaped limiting groove 201, rotating it 5°-10° will cause the reinforcing rib 101 to abut against one side of the arc-shaped limiting groove 201. Preferably, the central angle corresponding to the arc length of the arc-shaped limiting groove 201 in the circumferential direction is 8°, that is, after the reinforcing rib 101 passes through the through hole 203 into the arc-shaped limiting groove 201, rotating it 8° will cause the reinforcing rib 101 to abut against one side of the arc-shaped limiting groove 201. It is easy to understand that the central angle corresponding to the arc length of the arc-shaped limiting groove in the circumferential direction can of course be other degrees, such as 5°, 10°, and other degrees.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A winding tool comprising a winding skeleton and a shaft core, characterized in that, The inner wall of the winding framework is provided with a plurality of reinforcing ribs in the circumferential direction, the shaft core is in clearance fit with the winding framework, the shaft core is provided with arc-shaped limiting grooves corresponding to the reinforcing ribs one by one, the size of the arc-shaped limiting grooves in the circumferential direction is greater than the size of the reinforcing ribs in the circumferential direction, the reinforcing ribs are arranged in the arc-shaped limiting grooves, and one side of the arc-shaped limiting groove is in abutment with the reinforcing rib when the winding tool rotates in one direction.

2. The wire winding tool of claim 1, wherein, One end of the arc-shaped limiting groove is provided with a limiting stop, and one end of the reinforcing rib is in abutment with the limiting stop.

3. The wire winding tool of claim 2, wherein, The limiting stop is provided with a through hole for the reinforcing rib to pass through.

4. The wire winding tool of claim 1, wherein, A gap is left between the bottom of the arc-shaped limiting groove and the reinforcing rib.

5. The wire winding tool of claim 1, wherein, The central angle corresponding to the arc length of the arc-shaped limiting groove in the circumferential direction is 5°-10°.

6. The wire winding tool of claim 5, wherein, The central angle corresponding to the arc length of the arc-shaped limiting groove in the circumferential direction is 8°.

7. The wire winding tool of claim 1, wherein, Both sides of the arc-shaped limiting groove are provided with round corners.

8. The wire winding tool of claim 1, wherein, The shaft core is made of a metal material.

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