CN219916924U

CN219916924U - Flat line common mode inductance end of a thread forming device

Info

Publication number: CN219916924U
Application number: CN202321281245.7U
Authority: CN
Inventors: 唐建军
Original assignee: Nago Electromechanical Technology Ltd
Current assignee: Nago Electromechanical Technology Ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-10-27
Anticipated expiration: 2033-05-24

Abstract

The utility model relates to the technical field of inductance production equipment, in particular to a flat wire common mode inductance wire head forming device, which comprises a clamping hook, a wire connecting rod and a wire connecting rod, wherein the clamping hook is provided with a hook part inserted into the inner side of a coil; the translation mechanism is used for driving the clamping hook to slide back and forth along the horizontal direction; the clamping mechanism is provided with a pair of clamping pieces and a driving assembly for driving the pair of clamping pieces to move in opposite directions so as to clamp the coil; and the limiting piece is fixedly arranged at the side of the clamping hook sliding path and used for propping against the side part of the wire end of the coil. The coil wire end wound on the magnetic core is hooked outwards through the clamping hooks, and under the straightening effect of the limiting piece, the limiting piece abuts against the side part of the flat wire, so that the wire end originally wound on the magnetic core is pulled outwards and formed into a straight strip shape, a wire pulling mode of clamping before pulling is replaced, the problem of twisting of the wire end in the past is solved, the forming quality of the wire end is guaranteed, and the working efficiency is improved.

Description

Flat line common mode inductance end of a thread forming device

Technical Field

The utility model relates to a flat wire common mode inductance coil end forming device, which is applicable to the technical field of inductance production equipment.

Background

The flat line common mode inductor comprises a square-shaped magnetic core and two coils wound on two sides of the magnetic core respectively, each coil is formed by winding a flat line, and the starting end and the tail end of each coil can be connected with pin terminals of an external framework only by extending wire heads. Since the coil is formed by winding the coil on the magnetic core in a spiral winding manner, the initial end of the coil cannot be reserved with a straight coil end, otherwise, the coil cannot be normally wound, and it should be noted that before the coil initial end is not pulled out for forming, the coil initial end is generally wound on the magnetic core in a spiral or circular ring shape. The traditional thread end forming mode mainly adopts a worker to pull out the thread end from the initial end of the coil by using a tool, and the forming mode has the problems of high labor intensity of the worker and poor consistency of product quality, so that some automatic thread end forming devices appear on the market.

Referring to patent document with application number of CN202220785187.0, a wire pulling mechanism of a flat wire vertical winding automatic wire-hanging machine is disclosed, and belongs to the technical field of flat wire inductance production; the clamping component is used for clamping the wire ends of the flat wire inductance coils and is arranged at the front end of the first supporting component; the pushing block assembly is used for driving the clamping assembly to clamp or loosen the wire end of the flat wire inductance coil, and is positioned at the rear end of the clamping assembly and is arranged at the rear end of the first supporting assembly; the linear module is arranged along the front-back direction of the first supporting component, and is connected with the first supporting component to drive the first supporting component, the clamping component and the pushing block component to do reciprocating linear motion along the front-back direction of the first supporting component, so that the clamping component is close to or far away from the flat wire inductance coil. This mechanism of acting as go-between adopts the mode of pressing from both sides to get to hold of the end of a thread, then pulls out the end of a thread from the top of coil through the mode of pulling, and this kind of shaping mode can lead to the end of a thread to have certain degree distortion, and the end of a thread of pulling out needs further alignment to be straightened, has the poor problem of shaping effect, in addition, the mode dynamics of pulling after the centre gripping is not good to control, appears the problem of breaking easily.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a flat wire common mode inductance wire head forming device, which can solve the problem of poor forming effect.

The utility model provides a flat wire common mode inductance coil end forming device, which comprises a clamping hook, a clamping head and a clamping head, wherein the clamping hook is provided with a hook part inserted into the inner side of a coil; the translation mechanism is used for driving the clamping hook to slide back and forth along the horizontal direction; the clamping mechanism is provided with a pair of clamping pieces and a driving assembly for driving the pair of clamping pieces to move in opposite directions so as to clamp the coil; the limiting piece is fixedly arranged at the side of the clamping hook sliding path and used for propping against the side part of the wire head of the coil, and the ratio of the thickness of the limiting piece to the thickness of the flat wire is 1:0.5-2.

The magnetic core fixing device further comprises a limiting block, and a clamping groove for fixing the magnetic core is formed in the front end portion of the limiting block.

The bottom surface of the limiting block is provided with a sliding groove communicated with the bottom of the clamping groove, the clamping hook is placed in the sliding groove and can slide along the sliding groove, and the hook part of the clamping hook extends downwards out of the bottom surface of the limiting block.

The limiting piece is fixedly arranged on the bottom surface of the limiting piece, and the limiting piece is located on the side of the sliding groove.

Wherein, the spacing piece is platy setting.

The translation mechanism comprises a translation motor, an output shaft of the translation motor is fixedly connected with a screw rod body, a translation sliding seat which is in sliding fit with the screw rod body is sleeved on the outer periphery side of the screw rod body, and the translation sliding seat is fixedly connected with the clamping hook through a connecting rod assembly.

The driving assembly comprises paired driving air cylinders, the telescopic rods of the driving air cylinders are respectively clamped with driving sliding plates, and the holding pieces are respectively fixedly installed on the corresponding driving sliding plates.

Wherein, the limiting groove is offered towards the terminal surface of magnetic core to the staple bolt piece.

Wherein, the cross section shape of the limiting groove is semicircular.

The cross section of the hook part is one of rectangle, semicircle and fan.

The beneficial effects are that: compared with the prior art, the coil wire end forming device of the flat wire common mode inductance wire end is characterized in that the coil wire end wound on the magnetic core is hooked outwards through the clamping hooks, and under the straightening effect of the limiting piece, the limiting piece abuts against the side part of the flat wire, so that the wire end originally wound on the magnetic core is pulled outwards and formed into a straight strip shape, a traditional wire pulling mode of clamping before pulling is replaced, the problem of twisting of the wire end in the past is solved, the forming quality of the wire end is guaranteed, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a flat wire common mode inductance coil head forming device in this embodiment.

Fig. 2 is an exploded view of the device for forming the flat wire common mode inductance wire head in the present embodiment.

Fig. 3 is a schematic structural diagram of the stopper in this embodiment.

Fig. 4 is a schematic structural diagram of the assembled stopper and hook in the present embodiment.

Fig. 5 is a schematic structural diagram of the translation mechanism in the present embodiment.

Fig. 6 is a schematic structural diagram of the holding mechanism in the present embodiment.

Reference numerals: the device comprises a base 1, a limiting block 2, a clamping groove 21, a sliding groove 22, a clamping hook 3, a hook part 31, a translation mechanism 4, a translation motor 41, a screw rod body 42, a translation sliding seat 43, a holding piece 5, a limiting groove 51, a driving component 6, a driving air cylinder 61, a driving sliding plate 62 and a limiting piece 7.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be arbitrarily combined with each other.

The device for forming the flat wire common mode inductance wire head of the embodiment is shown in fig. 1 to 2, and comprises a base 1, a clamping hook 3, a translation mechanism 4, a holding mechanism and a limiting block 2. The limiting block 2 is fixedly arranged on the top end surface of the base 1, and the front end part of the limiting block 2 extends out of the outer side of the base 1.

In order to ensure the stability of molding, the magnetic core is prevented from rotating in the process of molding the wire end, and in combination with fig. 3, the front end part of the limiting block 2 is provided with a clamping groove 21 for fixing the magnetic core, and the shape of the clamping groove 21 is matched with the magnetic core.

With reference to fig. 4, as an improvement, a chute 22 communicated with the bottom of the clamping groove 21 is provided on the bottom surface of the limiting block 2, and the clamping hook 3 is placed in the chute 22 and can slide along the chute 22. The trip 3 is equipped with the hook portion 31 of inserting the coil inboard, and after trip 3 put into spout 22, hook portion 31 of trip 3 stretches out the bottom surface of stopper 2 downwards, and hook portion 31 stretches out the volume and is less than or equal to the thickness of flat line, can guarantee like this when hook portion 31 of trip 3 inserts to the coil inboard from the top of coil after, hook portion 31 of trip 3 only supports with the first round flat line at coil top. In addition, the cross section of the hook 31 is one of a rectangle, a semicircle, and a fan, and preferably, the cross section of the hook 31 is a semicircle, the semicircle hook 31 has an arc edge, and a large contact area is provided between the arc edge and the circular thread, so that the thread can be pulled out more smoothly.

Please refer to fig. 4, the limiting member 7 is fixedly installed on the bottom surface of the limiting member 2, and the limiting member 7 is located at a side of the sliding slot 22, i.e. the limiting member 7 is fixedly installed at a side of the sliding path of the hook 3, so that the limiting member 7 can abut against a wire end side portion of the coil. In this embodiment, the limiting member 7 and the limiting member 2 are integrally formed, in other embodiments, the limiting member 7 may be a plate-shaped sheet metal member, and is fixedly mounted on the bottom surface of the limiting member 2 by a screw or other means, wherein the ratio of the thickness of the limiting member 7 to the thickness of the flat wire is 1:0.5-2, that is, the thickness of the limiting member 7 may be smaller or larger than the thickness of the flat wire, so long as the flat wire can be supported by the limiting member, and the flat wire can be guided.

In order to realize that the automatic driving of the clamping hook 3 to reciprocate along the sliding groove 22 is realized, the forming device is provided with a translation mechanism 4, in the embodiment, the translation mechanism 4 comprises a translation motor 41, an output shaft of the translation motor 41 is fixedly connected with a screw rod body 42, a translation sliding seat 43 in sliding fit with the screw rod body 42 is sleeved on the outer periphery side of the screw rod body 42, the translation sliding seat 43 is fixedly connected with the clamping hook 3 through a connecting rod assembly, and it should be noted that the connecting rod assembly can be realized through a combination mode of a connecting plate and a connecting rod, so long as the translation sliding seat 43 can be linked with the clamping hook 3. When the sliding device is in operation, the translation motor 41 is started and drives the screw rod body 42 to rotate, the screw rod body 42 rotates to drive the translation sliding seat 43 to reciprocate along the axial direction of the screw rod body 42, and the translation sliding seat 43 is fixedly connected with the clamping hook 3, so that the translation sliding seat 43 drives the clamping hook 3 to reciprocate horizontally along the sliding groove 22.

It should be noted that, in other embodiments, the translation mechanism 4 may also use an air cylinder or an oil cylinder as a driving source, so long as the hook 3 can be driven to slide reciprocally.

In order to avoid the coil rotating during the forming process, the forming device is provided with a holding mechanism for fixing the coil. Specifically, referring to fig. 6, the holding mechanism is provided with a pair of holding members 5 and a driving assembly 6 for driving the pair of holding members 5 to move in opposite directions to hold the coil. In this embodiment, the driving assembly 6 includes a pair of driving cylinders 61, the telescopic rods (not shown) of each driving cylinder 61 are respectively clamped with a driving slide plate 62, each holding member 5 is fixedly mounted on the corresponding driving slide plate 62, and the forming device is further provided with a driving slide rail in sliding fit with the driving slide plate 62, and the driving slide rail is fixedly mounted on the base 1. When the telescopic rod of the driving cylinder 61 drives the driving slide plate 62 to slide along the driving slide rail, and the holding piece 5 is fixedly arranged on the driving slide plate 62, so that the driving slide plate 62 slides to drive the holding piece 5 to slide.

In this embodiment, in order to improve the holding power, the limiting groove 51 has all been seted up to the terminal surface of each holding piece 5 towards the magnetic core, and the cross-sectional shape of limiting groove 51 is semi-circular, and this kind of structure can adapt columnar coil, can hold the coil, avoids taking place to rotate at the in-process of shaping end of a thread.

The working process of the flat wire common mode inductance wire head forming device of the embodiment is as follows: before molding, the hook 31 of the hook 3 slides to the maximum stroke (the direction close to the clamping groove 21), the magnetic core with the coil is inserted into the clamping groove 21 of the limiting block 2 from bottom to top in the height direction, and after the magnetic core is inserted into place, the hook 31 of the hook 3 is inserted into the inner side of the coil; then the driving component 6 drives the paired clasps 5 to move towards the inner side in opposite directions, so that the paired clasps 5 clasp the coil wound on the magnetic core, the coil is prevented from rotating, and the preparation work of forming is completed. During forming, the translation mechanism 4 drives the hook portion 31 of the hook 3 to slide along the chute 22 in a direction opposite to the clamping groove 21, and as the hook portion 31 of the hook 3 is inserted into the inner side surface of the coil, and the protruding amount of the hook portion 31 is smaller than or equal to the thickness of the flat wire, the hook portion 31 can apply a pulling force moving outwards to the wire end wound at the initial end of the coil in the sliding process of the hook 3, so that the wire end in a circular/annular shape tends to extend in a straight strip shape, and in addition, as the limiting piece 7 is arranged at the side of the sliding path of the hook 3, the limiting piece 7 always provides a side supporting force for the flat wire (wire end) in the sliding process of the hook 3, so that the hook 3 and the limiting piece 7 limit the flat wire together in the forming process, and the clamping mechanism similar to a pair of clamping mechanisms straightens the wire end, so that the wire end in a circular shape is formed into the straight strip-shaped wire end. After the forming is finished, the holding mechanism returns, the product exits the clamping groove 21, and the clamping hook 3 returns, so that the next workpiece can be processed.

Compared with the prior art, the coil wire end forming device of the flat wire common mode inductance wire end forming device is characterized in that the clamping hooks 3 are arranged to hook out coil wire ends wound on the magnetic core outwards, and under the straightening effect of the limiting piece 7, the limiting piece 7 abuts against the side portion of the flat wire, so that the wire ends originally wound on the magnetic core are pulled out outwards and formed into a straight shape, the wire ends formed in the mode have the characteristics of being flat and straight, the wire pulling mode of clamping before pulling in the past is replaced, the problem of wire end twisting in the past is solved, the forming quality of the wire ends is guaranteed, and the working efficiency is improved.

Although the embodiments of the present utility model are described above, the present utility model is not limited to the embodiments adopted for the purpose of facilitating understanding of the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is still subject to the scope of the appended claims.

Claims

1. A flat wire common mode inductor end of a thread forming device, characterized by comprising:

a hook provided with a hook part inserted into the inner side of the coil;

the translation mechanism is used for driving the clamping hook to slide back and forth along the horizontal direction;

the clamping mechanism is provided with a pair of clamping pieces and a driving assembly for driving the pair of clamping pieces to move in opposite directions so as to clamp the coil;

the limiting piece is fixedly arranged at the side of the clamping hook sliding path and used for propping against the side part of the coil end, and the ratio of the thickness of the limiting piece to the thickness of the flat wire is 1:0.5-2;

the translation mechanism comprises a translation motor, an output shaft of the translation motor is fixedly connected with a screw rod body, a translation sliding seat which is in sliding fit with the screw rod body is sleeved on the outer peripheral side of the screw rod body, and the translation sliding seat is fixedly connected with the clamping hook through a connecting rod assembly; the driving assembly comprises paired driving air cylinders, the telescopic rods of the driving air cylinders are respectively clamped with driving sliding plates, and the holding pieces are respectively fixedly arranged on the corresponding driving sliding plates; the end face of the holding piece, facing the magnetic core, is provided with a limit groove.

2. The flat wire common mode inductance wire head forming device according to claim 1, wherein: still include the stopper, the draw-in groove that is used for fixed magnetic core is seted up to the front end of stopper.

3. The flat wire common mode inductance wire head forming device according to claim 2, wherein: the bottom surface of stopper is offered with the spout that the draw-in groove tank bottom switches on, the trip is put into in the spout and can follow the spout slides, the hook portion of trip stretches out downwards the bottom surface of stopper.

4. A flat wire common mode inductor end forming device according to claim 3, wherein: the limiting piece is fixedly arranged on the bottom surface of the limiting piece, and the limiting piece is located on the side of the sliding groove.

5. The flat wire common mode inductance wire head forming device according to claim 4, wherein: the limiting piece is arranged in a plate shape.

6. The flat wire common mode inductance wire head forming device according to claim 1, wherein: the cross section of the limiting groove is semicircular.

7. The flat wire common mode inductance wire head forming device according to claim 1, wherein: the cross section of the hook part is one of rectangle and sector.