Hollow coil winding tool

Abstract

The utility model relates to the field of hollow coil processing, in particular to a hollow coil winding tool, which comprises a rotating shaft, an elastic component, a winding component and a winding component, one end of the core column is fixedly connected with the rotating shaft, the other end of the core column is provided with a winding boss, and the side wall of the core column is provided with an insertion hole; the sliding sleeve is axially provided with an assembling hole for the core column to be inserted, the side wall of the sliding sleeve is provided with a strip-shaped hole along a generatrix, and one end of the sliding sleeve is inserted into the mounting hole and connected with the elastic piece; and the positioning pin penetrates through the strip-shaped hole and then is inserted into the insertion hole. Compared with a traditional winding tool, the hollow coil winding tool is simpler in structural design and convenient to operate, the stripping position of the coil is easy to set, the discharging precision is high, and the coil is prevented from being damaged during stripping.

Description

Technical Field

[0001] The utility model relates to the field of hollow coil processing, in particular to a winding tooling for a hollow coil. Background Art

[0002] A hollow coil, namely a Rogowski coil, also known as a Rokowski coil or a Roche coil, is an alternating current sensor with a hollow ring shape. There are two types, flexible and rigid, which are suitable for measuring alternating current in a relatively wide frequency range. There are no special requirements for conductors and dimensions, and it has a fast instantaneous response ability. It is widely used in occasions where traditional current measuring devices such as current transformers cannot be used for current measurement, especially for high-frequency and large-current measurement. Winding is an important link in the production operation of hollow coils. The winding equipment can refer to the Chinese invention patent with the application number CN201811004271.9 and the name of a winding equipment. After the coil is wound and formed, it needs to be peeled off from the winding head. The existing coil peeling structure not only has a relatively complex structure design and inconvenient operation, but also the coil blanking position is not easy to determine, and there is a risk of coil damage. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: to provide a winding tooling for a hollow coil, which is beneficial to improving the coil blanking accuracy.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a winding tooling for a hollow coil, comprising:

[0005] A rotating shaft is provided with an installation hole along the axial direction, and an elastic member is arranged in the installation hole;

[0006] A core column, one end of which is fixedly connected to the rotating shaft, the other end is provided with a winding boss, and the side wall of the core column is provided with a jack;

[0007] A sliding sleeve is provided with an assembly hole for the core column to insert along the axial direction. A strip-shaped hole is arranged on the side wall of the sliding sleeve along the generatrix. One end of the sliding sleeve is inserted into the installation hole and connected to the elastic member;

[0008] A positioning pin passes through the strip-shaped hole and is inserted into the jack.

[0009] Further, the rotating shaft comprises two or more sections spliced along the axial direction, and each section is provided with an installation hole along the axial direction.

[0010] Further, the other end of the sliding sleeve is provided with a stripping plane, and a wire guiding groove communicated with the assembly hole is arranged on the stripping plane.

[0011] Further, a tying hook is arranged on the side of the sliding sleeve away from the assembly hole of the guiding groove.

[0012] Further, the elastic member is a compression spring.

[0013] The beneficial effects of the present utility model are as follows: A winding tooling for a hollow coil. When in use, the sliding sleeve is pulled towards the side close to the rotating shaft until one end of the strip-shaped hole abuts against the positioning pin. At this time, the end of the core column with the winding boss extends out of the assembly hole of the sliding sleeve. The rotating shaft rotates driven by the driving member, thereby driving the core column fixed thereon to rotate. The copper wire is wound around the winding boss of the core column for winding. After the winding is completed, the sliding sleeve is released, and the sliding sleeve resets under the action of the elastic member. The other end of the strip-shaped hole abuts against the positioning pin, thereby restricting the displacement of the sliding sleeve. After the sliding sleeve is reset, the core column retracts into the assembly hole relative to the sliding sleeve. The coil fixed on the winding boss of the core column peels off from the winding boss under the support of the sliding sleeve, completing the blanking. The winding tooling for the hollow coil provided by the present utility model is not only simpler in structural design and more convenient to operate compared with the traditional winding tooling, but also the blanking position of the coil is easy to set, the blanking accuracy is high, and the coil is prevented from being damaged during blanking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the winding tooling for the hollow coil;

[0015] Figure 2 is another schematic structural diagram of the winding tooling for the hollow coil;

[0016] Figure 3 is an exploded schematic diagram of the winding tooling for the hollow coil;

[0017] Figure 4 is a partial schematic diagram of the winding tooling for the hollow coil;

[0018] Reference numeral description:

[0019] 1. Rotating shaft; 11. Mounting hole; 12. Elastic member; 13. Segment; 2. Core column; 21. Winding boss; 22. Insertion hole; 3. Sliding sleeve; 31. Assembly hole; 32. Strip-shaped hole; 33. Blanking plane; 331. Wire groove; 332. Binding hook; 4. Positioning pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the accompanying drawings.

[0021] The present utility model provides a winding tooling for a hollow coil, which is used in a hollow coil winding device.

[0022] Please refer to Figures 1 to 4 As shown, a winding tooling for a hollow coil of the present utility model includes:

[0023] A rotating shaft 1, which is provided with a mounting hole 11 along the axial direction, and an elastic member 12 is arranged in the mounting hole 11;

[0024] The core column 2 has one end fixedly connected to the rotating shaft 1, and the other end is provided with a winding boss 21. The side wall of the core column 2 is provided with a jack 22;

[0025] The sliding sleeve 3 is axially provided with an assembly hole 31 for inserting the core column 2. The side wall of the sliding sleeve 3 is provided with a strip-shaped hole 32 along the generatrix. One end of the sliding sleeve 3 is inserted into the mounting hole 11 and connected to the elastic member 12;

[0026] The positioning pin 4 passes through the strip-shaped hole 32 and is inserted into the jack 22.

[0027] As can be seen from the above description, the beneficial effect of the present utility model is as follows: For a hollow coil winding tooling, during use, the sliding sleeve 3 is pulled towards the side close to the rotating shaft 1 until one end of the strip-shaped hole 32 abuts against the positioning pin 4. At this time, the end of the core column 2 provided with the winding boss 21 extends out of the assembly hole 31 of the sliding sleeve 3. The rotating shaft 1 rotates driven by the driving member, thereby driving the core column 2 fixed thereon to rotate. The copper wire is wound around the winding boss 21 of the core column 2 for winding. After winding, the sliding sleeve 3 is released. The sliding sleeve 3 is reset under the action of the elastic member 12, and the other end of the strip-shaped hole 32 abuts against the positioning pin 4, thereby restricting the displacement of the sliding sleeve 3. After the sliding sleeve 3 is reset, the core column 2 retracts into the assembly hole 31 relative to the sliding sleeve 3. The coil fixed on the winding boss 21 of the core column 2 peels off from the winding boss 21 under the support of the sliding sleeve 3, completing the blanking. The hollow coil winding tooling provided by the present utility model is not only simpler in structural design and more convenient to operate compared with the traditional winding tooling, but also the coil stripping position is easy to set, the blanking accuracy is high, and the coil is prevented from being damaged during stripping.

[0028] In an alternative embodiment, the rotating shaft 1 includes two or more segments 13 spliced axially, and each segment 13 is axially provided with a mounting hole 11.

[0029] As can be seen from the above description, the length of the rotating shaft 1 can be flexibly adjusted as needed. The segments 13 of the rotating shaft 1 are connected in a splicing manner, which is convenient for disassembly and assembly.

[0030] In an alternative embodiment, the other end of the sliding sleeve 3 is provided with a stripping plane 33, and a wire guiding groove 331 communicating with the assembly hole 31 is provided on the stripping plane 33.

[0031] As can be seen from the above description, the stripping plane 33 is used to support and restrict the movement of the coil, and the guiding groove plays a role in guiding and limiting the copper wire before winding.

[0032] In an alternative embodiment, a wire tying hook 332 is provided on the side of the sliding sleeve 3 away from the assembly hole 31 of the guiding groove.

[0033] As can be seen from the above description, the wire tying hook 332 is used to fix the first wire before winding.

[0034] In an alternative embodiment, the elastic member 12 is a compression spring.

[0035] Please refer to Figures 1 to 4 As shown, Embodiment 1 of the present utility model is: a hollow coil winding tooling, comprising:

[0036] A rotating shaft 1, which is provided with a mounting hole 11 along the axial direction, and an elastic member 12 is arranged in the mounting hole 11;

[0037] A core column 2, one end of which is fixedly connected to the rotating shaft 1, the other end is provided with a winding boss 21, and the side wall of the core column 2 is provided with a jack 22;

[0038] A sliding sleeve 3, which is provided with an assembly hole 31 for the core column 2 to be inserted along the axial direction, a strip-shaped hole 32 is arranged along the generatrix on the side wall of the sliding sleeve 3, and one end of the sliding sleeve 3 is inserted into the mounting hole 11 and connected to the elastic member 12;

[0039] A positioning pin 4, which is inserted into the jack 22 after passing through the strip-shaped hole 32.

[0040] The rotating shaft 1 comprises two or more segments 13 spliced along the axial direction, and each segment 13 is provided with a mounting hole 11 along the axial direction. The other end of the sliding sleeve 3 is provided with a stripping plane 33, and a wire guiding groove 331 communicating with the assembly hole 31 is arranged on the stripping plane 33. A wire tying hook 332 is arranged on the side of the sliding sleeve 3 away from the assembly hole 31 of the guiding groove. The elastic member 12 is a compression spring.

[0041] In summary, for the hollow coil winding tooling of the present utility model, during use, the sliding sleeve is pulled towards the side close to the rotating shaft until one end of the strip-shaped hole abuts against the positioning pin. At this time, the end of the core column provided with the winding boss extends out of the assembly hole of the sliding sleeve. The rotating shaft rotates driven by a driving member, thereby driving the core column fixed thereon to rotate. The copper wire is wound around the winding boss of the core column for winding. After the winding is completed, the sliding sleeve is released, and the sliding sleeve resets under the action of the elastic member. The other end of the strip-shaped hole abuts against the positioning pin, thereby restricting the displacement of the sliding sleeve. After the sliding sleeve is reset, the core column retracts into the assembly hole relative to the sliding sleeve. The coil fixed on the winding boss of the core column is peeled off from the winding boss under the support of the sliding sleeve, completing the blanking. Compared with the traditional winding tooling, the hollow coil winding tooling provided by the present utility model not only has a simpler structure design and is more convenient to operate, but also the blanking position of the coil is easy to set, the blanking accuracy is high, and the coil is prevented from being damaged during blanking.

[0042] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, are equally included in the patent protection scope of the present utility model.

Claims

1. A hollow coil winding tool, characterized in that: include: The rotating shaft is provided with a mounting hole along the axial direction, and an elastic member is arranged in the mounting hole; A core column, one end of which is fixedly connected to the rotating shaft, and the other end of which is provided with a winding boss, and a side wall of the core column is provided with a plug hole; The sliding sleeve is provided with an assembly hole for inserting the core column along the axial direction, and a strip hole is provided along the busbar on the side wall of the sliding sleeve, and one end of the sliding sleeve is inserted into the installation hole and connected to the elastic member; The positioning pin passes through the bar hole and is inserted into the socket.

2. The hollow coil winding tool according to claim 1, characterized in that: The rotating shaft comprises more than two segments which are spliced ​​along the axial direction, and each segment is provided with a mounting hole along the axial direction.

3. The hollow coil winding tool according to claim 1, characterized in that: The other end of the sliding sleeve is provided with a stripping plane, and the stripping plane is provided with a wire groove communicated with the assembly hole.

4. The hollow coil winding tool according to claim 3, characterized in that: A wire binding hook is provided on the side of the sliding sleeve located in the guide groove away from the assembly hole.

5. The hollow coil winding tool according to claim 1, characterized in that: The elastic member is a compression spring.

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