CN212848036U

CN212848036U - Winding jig

Info

Publication number: CN212848036U
Application number: CN202021318562.8U
Authority: CN
Inventors: 黎超; 吴文晶; 李建清; 姚庆杰; 丁刚
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd; Kunshan Liantao Electronics Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-03-30
Anticipated expiration: 2030-07-07

Abstract

The embodiment of the utility model provides a wire winding tool is provided. The outer diameter of the shaft sleeve is adjusted by arranging a central hole in the shaft sleeve and a gap penetrating through one end of the side wall and placing a shaft core with the diameter larger than that of the central hole in the central hole. Can realize coiling coil product on the axle sleeve under the condition of placing the axle core, after the wire winding is accomplished, reduce the diameter of axle sleeve through taking out the axle core to, after the wire winding is accomplished, the diameter of adjustment axle sleeve is less than the diameter of coil product, makes the coil product be convenient for take out. The coil product is prevented from being damaged, and the qualification rate and the production efficiency of the coil product are improved.

Description

Winding jig

Technical Field

The utility model relates to the field of electronic technology, especially, relate to a winding tool.

Background

Coils generally refer to a winding of wire in the shape of a loop, the most common coil applications being: motors, inductors, transformers, loop antennas, and the like. However, the coil products formed by the existing process have low yield.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a winding tool for the coiling coil is to the basement in, in order to improve the qualification rate of coil product.

The embodiment of the utility model provides a wire winding tool includes:

the shaft sleeve is used for fixing the base and is provided with a central hole, wherein the side wall of the shaft sleeve is provided with at least one slit which axially extends to one end of the shaft sleeve, and the slit penetrates through the side wall of the shaft sleeve;

a shaft core having a diameter larger than that of the center hole, and disposed in the center hole to increase an outer circumferential dimension of the shaft sleeve;

a base; and

and the support is arranged on the base and supports two ends of the shaft sleeve.

Preferably, the slit is disposed in a radial direction of the central hole.

Preferably, the side wall of the boss has a plurality of slits that are centrosymmetric with respect to a central axis of the boss.

Preferably, the length of the slit in the axial direction is smaller than the length of the sleeve.

Preferably, the winding jig further includes:

and the fixing ring is fixedly connected with the first end of the shaft sleeve, so that the shaft sleeve clamps the shaft core.

Preferably, the first end of the shaft sleeve is fixedly connected with the fixing ring through threads.

Preferably, the second end of the shaft sleeve is provided with a limiting bulge, and the limiting bulge and the fixing ring are arranged on two sides of the bracket.

Preferably, the outer side of the shaft sleeve is provided with two positioning areas which are separated by a preset size.

Preferably, the substrate is sheet-shaped and is wound between the positioning areas; wire winding tool still includes:

and the buckle is matched with the positioning area and used for clamping the substrate on the shaft sleeve.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a schematic perspective view of a coil product according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a winding jig according to an embodiment of the present invention;

fig. 3 is a schematic view of a shaft sleeve and a shaft core of the winding jig according to the embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of the shaft sleeve and the shaft core of the winding jig according to the embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of the shaft sleeve and the shaft core of the winding jig according to the embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of the shaft sleeve and the shaft core of the winding jig according to the embodiment of the present invention;

fig. 7 is a flowchart of a method for using a winding jig according to an embodiment of the present invention.

Description of reference numerals:

a coil

B substrate

10 shaft sleeve

11 center hole

12 gap

13 limiting bulge

14 location area

20 axle core

30 base

40 support

50 fixed ring

And 60, buckling.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of embodiments of the invention, certain specific details are set forth. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, the words "comprise," "comprising," and the like in the embodiments of the present invention are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the embodiments of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Spatially relative terms, such as "inner," "outer," "below," "lower," "above," "upper," and the like, are used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

The coils in the circuit are typically used to form inductors. The inductor may be an air-core coil or may be wound on a particular substrate. In an alternative implementation, the wire is wound on a cylindrical substrate B to form a coil a, and finally the coil product is formed as shown in fig. 1. The base (B is a sheet-shaped flexible material, specifically sheet-shaped ferrite, and the coil A can be formed by winding an enameled wire on the sheet-shaped ferrite.

Fig. 2 is a schematic perspective view of a winding jig according to an embodiment of the present invention. As shown in fig. 3, a winding jig is used for winding a coil a on a substrate B, and is characterized in that the winding jig comprises: the shaft sleeve 10, the shaft core 20, the base 30, the bracket 40, the fixing ring 50 and the buckle 60.

Fig. 3 is a schematic view of the shaft sleeve 10 and the shaft core 20 of the winding jig according to the embodiment of the present invention. As shown in fig. 2 and 3, a boss 10 for fixing the base B has a center hole 11. The side wall of the shaft sleeve 10 is provided with at least one slit 12 extending to one end of the shaft sleeve 10 along the axial direction, and the slit 12 penetrates through the side wall of the shaft sleeve 10. The central hole 11 coincides with the centre of the sleeve 10. The depth of the central hole 11 in the axial direction is greater than the dimension of the slit 12 in the axial direction. In an alternative embodiment, the central hole 11 extends through the sleeve 10, so that the sleeve 10 has a cylindrical structure. In other alternative implementations, a central bore 11 extends from the first end to the other end of the sleeve 10, the central bore 11 having an axial dimension equal to the dimension of the gap 12 in the axial direction.

In the present embodiment, the cross section of the shaft sleeve 10 is illustrated as a circle, but it should be understood that the size and the outer shape of the shaft sleeve 10 can be adjusted according to the shape and the size of the coil product, for example, the outer circumference of the cross section of the shaft sleeve 10 can be a square, which is not limited herein.

The diameter of the shaft core 20 is larger than that of the central hole 11. A part of the core 20 is disposed in the center hole 11 to expand the sleeve 10, thereby increasing the outer circumferential size of the sleeve 10. Specifically, the diameter of the shaft core 20 is slightly larger than the center hole 11. The diameter of the shaft core 20 is 0.1-5% larger than that of the central hole 11. In an alternative implementation, the diameter of the core 20 is greater than 1% of the diameter of the central bore 11. A portion of the core 20 is beyond the first end of the sleeve 10 to facilitate the application of force to the core 20.

By placing the core 20 having a larger diameter than the center hole 11 in the center hole 11 at the first end of the sleeve 10, the outer diameter of the sleeve 10 can be increased due to the slit 12 formed in the sleeve 10.

In an alternative embodiment, the length of the slot 12 in the axial direction is smaller than the length of the sleeve 10. That is, the slit 12 is provided at one end of the shaft sleeve 10 along the shaft core 20 and has an opening at a first end of the shaft sleeve 10.

In an alternative embodiment, the slits 12 are arranged radially to the central bore 11 in the cross-section of the sleeve 10. Further, the side wall of the shaft sleeve 10 has a plurality of slits 12, and the plurality of slits 12 are centrosymmetric with respect to the central axis of the shaft sleeve 10. The plurality of slits 12 are centrosymmetric and divide the cross section of the sleeve 10 into a plurality of portions having the same size. As shown in fig. 4, 2 slits 12 are provided in the bearing so as to be symmetrical with respect to the center axis of the sleeve 10. As shown in fig. 5, 3 slits 12 are provided in the sleeve 10 so as to be symmetrical with respect to the center axis of the sleeve 10. As shown in fig. 6, 4 slits 12 are provided in the sleeve 10 so as to be symmetrical with respect to the center axis of the sleeve 10. The stress of the shaft core 20 penetrating into the central hole 11 in all directions can be uniform, so that the appearance of the shaft sleeve 10 is regular and smooth.

It will be appreciated that the smaller the width of the gap 12, the more nearly circular the shape of the coil a finally wound on the sleeve 10. The width of the gap 12 can be adjusted according to the size of the coil a, and is not limited herein.

The embodiment of the utility model provides an in, the centre bore 11 of axle sleeve 10 is the round hole, arranges the axle core 20 in the centre bore 11 also for circular, because circular can make axle core 20 rotate in centre bore 11, the friction between axle core 20 and axle sleeve 10 can be reduced to the level and smooth curved surface, can be convenient for the loading and unloading of axle core 20 in centre bore 11 from this. In other alternative implementations, the central hole 11 may also be a square hole.

It should be understood that the material of the sleeve 10 may be a material with better toughness, and the wall thickness of the sleeve 10 is set according to the material and size of the sleeve 10, and is not limited herein.

The fixing ring 50 is fixedly connected to the first end of the shaft sleeve 10, so that the shaft sleeve 10 clamps the shaft core 20. Specifically, the inner diameter of the fixing ring 50 is slightly larger than the outer diameter of the shaft sleeve 10, and further, the inner diameter of the fixing ring 50 is equal to the size of the shaft sleeve 10 and the shaft core 20.

In an alternative implementation, the first end of the shaft sleeve 10 is fixedly connected with the fixing ring 50 through threads. Specifically, the first end of the sleeve 10 has an external thread, and the inner side of the fixing ring 50 has an internal thread to be fitted with the external thread of the sleeve 10. After the shaft core 20 is placed in the central hole 11, the fixing ring 50 is fixedly connected to the first end of the shaft sleeve 10 to relatively fix the shaft sleeve 10 and the shaft core 20, so that the inner wall of the shaft sleeve 10 is attached to the outer wall of the shaft core 20.

In other alternative implementations, the shaft sleeve 10 and the fixing ring 50 are clamped, and the limiting groove may have a first portion along the axial direction and a second portion perpendicular to the axial direction by providing a plurality of protrusions at the first end of the shaft sleeve 10 and providing a limiting groove in the fixing ring 50 to be matched with the protrusions. By placing the projection of the first end of the shaft sleeve 10 in the second portion of the stopper groove, the relative movement of the shaft sleeve 10 and the fixing ring 50 in the axial direction can be restricted, thereby relatively fixing the shaft sleeve 10 and the shaft core 20.

The base 30 may be a flat plate structure horizontally disposed as shown in fig. 1, and the bracket 40 is disposed on the base 30 to support both ends of the shaft housing 10. Specifically, the bracket 40 is disposed perpendicular to the axial direction of the shaft sleeve 10, and the upper end of the bracket 40 is provided with a recess that is fitted with the outer diameter of the shaft sleeve 10. In an alternative implementation, two brackets 40 are provided on the base 30, and the two brackets 40 support the two ends of the shaft sleeve 10.

The second end of the sleeve 10 has a stopper protrusion 13. In an alternative implementation, the limiting protrusion 13 is a ring structure with a diameter larger than that of the shaft sleeve 10. The limiting protrusions 13 and the fixing ring 50 are disposed at both sides of the bracket 40. The limiting bulges 13 and the fixing rings 50 are arranged at the two ends of the shaft sleeve 10, the outer diameters of the limiting bulges 13 and the fixing rings 50 are larger than the depressions on the support 40, the shaft sleeve 10 can be limited to move on the support 40 along the axial direction, and the winding jig can control the uniformity of the formed coil A in the using process.

The outer side of the sleeve 10 has two locating areas 14 spaced apart by a predetermined dimension. The locating region 14 may be a recess provided in the sleeve 10, and in an alternative implementation, the locating region 14 may include two corresponding recesses on the outside of the sleeve 10. The predetermined dimension may be equal to the dimension of the base B in the axial direction.

A catch 60 cooperating with said locating region 14 for clamping said base B to said sleeve 10.

Set up the sunken of mutual symmetry on axle sleeve 10, two sunken clamping surfaces that form and be used for making buckle 60 centre gripping avoid buckle 60 centre gripping cylindric axle sleeve 10 and lead to gliding phenomenon, make the centre gripping more firm. The base B is thus fixed to the sleeve 10 by the snap 60 engaging with the locating region 14.

The embodiment of the utility model provides a wire winding tool is provided. By providing a center hole 11 in the boss 10 and providing a slit 12 penetrating one end of the side wall, the outer diameter of the boss 10 is adjusted by placing a core 20 larger than the diameter of the center hole 11 in the center hole 11. Can realize coiling the coil product on axle sleeve 10 under the condition of placing axle core 20, after the wire winding is accomplished, reduce the diameter of axle sleeve 10 through taking out axle core 20 to, after the wire winding is accomplished, the diameter of adjustment axle sleeve 10 is less than the diameter of coil product, makes the coil product be convenient for take out. The coil product is prevented from being damaged, and the qualification rate and the production efficiency of the coil product are improved.

Fig. 7 is a flowchart of a method for using a winding jig according to an embodiment of the present invention. As shown in fig. 7, the application method of the winding jig according to the embodiment of the present invention includes the following steps:

step S100, the shaft core 20 is placed in the central hole 11 of the shaft sleeve 10.

Specifically, the shaft core 20 is axially inserted into the central hole 11 from the first end of the shaft sleeve 10 so that the outer diameter of the shaft sleeve 10 is larger than the original size.

Step S200, fitting the fixing ring 50 with the first end of the shaft sleeve 10.

Thereby, the inner wall of the boss 10 and the outer wall of the core 20 are bonded.

Step S300, the substrate B is wound between the two positioning areas 14 of the sleeve 10.

Step S400, clamping both ends of the substrate B with the clips 60. Thereby, the base B is fixed to the sleeve 10.

And step S500, winding the coil A on the substrate B.

Specifically, glue may be applied between the coil a and the substrate B to bond the coil a and the substrate B. The coil a is wound on the base B, one end of the coil a can be clamped on the buckle 60, and the shaft sleeve 10 is rotated, so that the coil a is wound on the base B. The rotation of the sleeve 10 may be controlled manually or by a machine by connecting one end of the sleeve 10 to a motor.

Step S600, the fixing ring 50 is removed.

Step S700, the shaft core 20 is taken out. The outer diameter of the sleeve 10 is restored to the original size.

And step S800, taking down the coil product comprising the substrate B and the coil A.

The embodiment of the utility model provides a can be after coil A coiling is on axle sleeve 10, reduce the diameter of axle sleeve 10 through taking off axle core 20 to be convenient for the coil product take off from axle sleeve 10, avoid the coil product to be damaged, improved the qualification rate and the production efficiency of coil product.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A winding jig for winding a coil (A) onto a base (B), the winding jig comprising:

a shaft sleeve (10) which is used for fixing the base (B) and is provided with a central hole (11), wherein the side wall of the shaft sleeve (10) is provided with at least one slit (12) which axially extends to one end of the shaft sleeve (10), and the slit (12) penetrates through the side wall of the shaft sleeve (10);

a shaft core (20) having a diameter larger than that of the center hole (11) and provided in the center hole (11) to increase the outer circumferential dimension of the shaft sleeve (10);

a base (30); and

and the bracket (40) is arranged on the base (30) and supports the shaft sleeve (10).

2. Winding jig according to claim 1, characterized in that the slits (12) are arranged in the radial direction of the central hole (11).

3. The winding jig according to claim 2, characterized in that the side wall of the bushing (10) has a plurality of slits (12), and the plurality of slits (12) are centrosymmetric with respect to the central axis of the bushing (10).

4. A winding jig according to claim 3, characterized in that the length of the slit (12) in the axial direction is smaller than the length of the sleeve (10).

5. The winding jig of claim 1, further comprising:

and the fixing ring (50) is fixedly connected with the first end of the shaft sleeve (10) so that the shaft sleeve (10) clamps the shaft core (20).

6. The winding jig according to claim 5, characterized in that the first end of the bushing (10) is fixedly connected with the fixing ring (50) through threads.

7. The winding jig according to claim 5, characterized in that the second end of the shaft sleeve (10) is provided with a limiting protrusion (13), and the limiting protrusion (13) and the fixing ring (50) are arranged on two sides of the bracket (40).

8. The winding jig according to claim 1, characterized in that the outside of the bushing (10) has two positioning areas (14) spaced by a predetermined dimension.

9. Winding jig according to claim 8, characterized in that the base (B) is sheet-like, is wound between the positioning zones (14); wire winding tool still includes:

-a catch (60) cooperating with said locating region (14) for clamping said base (B) on said sleeve (10).