CN220306062U

CN220306062U - Magnetic ring and magnetizing die

Info

Publication number: CN220306062U
Application number: CN202321497601.9U
Authority: CN
Inventors: 董坤
Original assignee: Huizhou Zhongke Zhongci Technology Co ltd
Current assignee: Huizhou Zhongke Zhongci Technology Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2024-01-05
Anticipated expiration: 2033-06-13

Abstract

The utility model discloses a magnetic ring, which comprises a ring-column-shaped main body, wherein a punching opening is formed at least one end of the main body, and a plurality of notch grooves are formed in the circumferential direction of the end part of the main body, on which the punching opening is formed. The notch groove can form clamping fit with a corresponding clamping piece, so that the installation is convenient, and the fit strength is enhanced. The utility model also discloses a magnetizing die, wherein the front die insert comprises a second matrix and a punching needle, and a plurality of second cavities are arranged in the second matrix at intervals along the circumferential direction; the punching needle can be inserted into the second cavity and exposed out for punching to form a notch groove. The forming process is as follows: after the second matrix is punched on the die core, punching the punching needle to form a plurality of notch grooves at the end part of the magnetic ring; by means of step-by-step stamping, the thought of one-step stamping forming of the magnetic ring in the prior art is improved, and the magnetic ring with a plurality of notch grooves can be formed.

Description

Magnetic ring and magnetizing die

Technical Field

The utility model relates to the technical field of molds for manufacturing magnetic rings, in particular to a magnetic ring magnetizing mold.

Background

The magnetic ring is a ring-shaped magnetizer, is often used as an anti-interference element in an electronic circuit, and has wide application. The existing magnetic ring is limited to the structure of a forming die, a multi-groove structure is difficult to form at the end part of the magnetic ring, and corresponding products are lacked.

In addition, in the prior art, for example, the Chinese utility model discloses, CN 111415795A, an anisotropic bonded ferrite planar bipolar orientation magnetization mold adopts a fixed mold core and a movable mold core to process a magnetic ring. Wherein, wait to form the magnetic ring and set up in the settling chamber. In the technical scheme, when the magnetic ring is subjected to the stamping force in the vertical direction, the magnetic ring is easy to incline in the arrangement cavity, so that the technical problem that the machining precision is low, the defective rate is high, and the magnetic ring is easy to damage is solved.

Disclosure of Invention

Therefore, the primary object of the present utility model is to provide a magnetic ring with a plurality of notches at the end of the magnetic ring, wherein the notches can form a clamping fit with corresponding clamping pieces, so as to facilitate installation and enhance the fit strength.

In addition, the utility model improves the conditions of uneven stress, inclination and easy damage of the magnetic ring when the magnetic ring is subjected to external force by changing the integral structural form of the forming grinding tool, particularly arranging the reinforcing part in the rear mould insert and utilizing the annular shape of the magnetic ring.

In order to achieve the above purpose, the magnetic ring of the utility model adopts the following specific technical scheme: the novel punching die comprises a ring-column-shaped main body, wherein a punching opening is formed at least one end of the main body, and a plurality of notch grooves are formed in the circumferential direction of the end part of the main body, where the punching opening is formed.

The magnetizing die adopts the specific technical scheme that: comprises a mould component which can be matched with a base station for use; the die assembly comprises a die core, a front die insert and a rear die insert; the die core is assembled inside the rear die insert; the front mold insert can be matched with the rear mold insert towards the direction of the mold core; the front die insert comprises a second matrix and a punch pin, and a plurality of second cavities are formed in the second matrix at intervals along the circumferential direction; the punching needle can be inserted into the second cavity and exposed out for punching to form a notch groove.

Preferably, the front end of the second base body forms a truncated cone-shaped male die end, and the punch pin can be matched with the second die cavity to finish punch forming of the magnetic ring to be formed.

Preferably, the second cavity is provided in a tapered shape with one end being wide and the other end being narrow, and the shape of the punch pin is provided corresponding to the shape of the second cavity.

Preferably, one end of the second substrate is provided with a connecting flange, and two sides of the connecting flange are provided with truncated side walls.

Preferably, the rear mold insert comprises a first matrix and a reinforcing member, wherein a first cavity is formed in the first matrix corresponding to the mold core, and the reinforcing member and the mold core can be in plug-in fit along the axial direction of the first matrix.

Preferably, the first matrix mainly comprises a mold core and a mold sleeve; the mold core is in sleeve joint fit with the mold sleeve; and 4 magnetizing positions capable of magnetizing the magnetic ring to be formed are arranged on the mold core.

Preferably, the end part of the die sleeve is provided with a stepped hole, the tail part of the die core is provided with a first bolt hole, and the die sleeve is fixedly connected with the die core through a connecting disc provided with a second bolt hole.

Preferably, the mold core comprises a third substrate; the third matrix is arranged in a ring column shape, and a central vacancy is formed in the central position; the stiffener is provided in a cylindrical shape, the stiffener being insertably mated with the central void.

Preferably, the die core is concentrically matched with the first die cavity; the central vacancy is coaxially arranged on the third substrate.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model discloses a magnetic ring, which comprises a ring-column-shaped main body, wherein a punching opening is formed at least one end of the main body, and a plurality of notch grooves are formed in the circumferential direction of the end part of the main body, on which the punching opening is formed. The notch groove can form clamping fit with a corresponding clamping piece, so that the installation is convenient, and the fit strength is enhanced.

In addition, the utility model provides a magnetizing die, wherein the front die insert comprises a second matrix and a punch pin, and a plurality of second cavities are arranged in the second matrix at intervals along the circumferential direction; the punching needle can be inserted into the second cavity and exposed out for punching to form a notch groove. The forming process is as follows: after the second matrix is punched on the die core, punching the punching needle to form a plurality of notch grooves at the end part of the magnetic ring; by means of step-by-step stamping, the thought of one-step stamping forming of the magnetic ring in the prior art is improved, and the magnetic ring with a plurality of notch grooves can be formed.

In addition, compared with the prior art, the rear die assembly provides a stable assembly structure through the reinforcing piece, so that the shaking of the die core caused by the stamping of the front die insert can be resisted, and the forming precision is improved; and the front die insert is stamped and the rear die assembly is magnetized, so that the stamping and magnetizing processes are synchronously carried out, and the processing efficiency is improved.

The utility model is further described below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a magnetic ring in a preferred embodiment of the present utility model.

Fig. 2 is a schematic structural view showing a mold in a use state in a preferred embodiment of the present utility model.

Fig. 3 is a schematic view showing the structure of a front mold insert in a preferred embodiment of the present utility model.

Fig. 4 is a schematic cross-sectional view of a front mold insert according to a preferred embodiment of the present utility model.

Fig. 5 is a schematic structural view of a punch magnetic ring of a punch pin according to a preferred embodiment of the present utility model.

Fig. 6 is a schematic structural diagram of the punch pin and the die core according to the preferred embodiment of the utility model.

Fig. 7 is a schematic view of a mold core in a preferred embodiment of the present utility model.

Fig. 8 is a schematic structural view of a connection pad in a preferred embodiment of the present utility model.

Fig. 9 is a schematic structural diagram of the core magnetization bit in the preferred embodiment of the present utility model.

Fig. 10 is a schematic structural view of a magnetic ring processed according to a preferred embodiment of the present utility model.

Fig. 11 is a physical diagram of a finished magnetic ring in a preferred embodiment of the present utility model.

Reference numerals illustrate:

10 base station, 20 die core, 21 third base body, 211 center vacancy, 30 front die insert, 31 second base body, 311 male die end, 312 second cavity, 32 punch pin, 33 connecting flange, 331 section platform side wall, 40 rear die insert, 41 first base body, 411 die core, 4111 magnetizing position, 4112 first bolt hole, 412 die sleeve, 4121 stepped hole, 413 connecting disc, 4131 second bolt hole, 42 reinforcing piece, 43 first cavity, 50 magnetic ring, 51 main body, 52 punch opening, 53 notch groove.

Detailed Description

The present utility model is further illustrated and described in the following detailed description, which should be understood as being for the purpose of making the technical solution of the present utility model clearer and easier to understand, and not limiting the scope of the claims.

The magnetizing die comprises a die assembly which can be matched with the base station 10 for use; the mold assembly includes a core 20, a front mold insert 30, and a rear mold insert 40; the mold core 20 is assembled to the inside of the rear mold insert 40; the front mold insert 30 is mated with the rear mold insert 40 in a direction toward the core 20; the front mold insert 30 includes a second base 31 and a punch pin 32, wherein a plurality of second cavities 312 are formed in the second base 31 at intervals along the circumferential direction; the punch pin 32 is insertable into the second cavity 312 and exposed for punching the notch 53.

In a preferred embodiment, the front end of the second base 31 forms a truncated cone-shaped male die end 311, and the punch pin 32 can cooperate with the second cavity 312 to complete the punch forming of the magnetic ring to be formed.

In a preferred embodiment, the second cavity 312 is formed in a tapered shape having a wide end and a narrow end, and the punch pin 32 is formed in a shape corresponding to the shape of the second cavity 312.

In a preferred embodiment, one end of the second substrate 31 is provided with a connecting flange 33, and two sides of the connecting flange 33 are provided with truncated side walls 331.

In a preferred embodiment, the rear mold insert 40 includes a first base 41, and a reinforcing member 42, wherein a first cavity 43 is disposed inside the first base 41 corresponding to the mold core 20, and the reinforcing member 42 is in pluggable fit with the mold core 20 along the axial direction of the first base 41.

In a preferred embodiment, the first base 41 is mainly composed of a mold core 411 and a mold sleeve 412; the mold core 411 is in sleeve joint fit with the mold sleeve 412; the mold core 411 is provided with 4 magnetizing positions 4111 capable of magnetizing the magnetic ring to be formed.

In a preferred embodiment, the end of the die sleeve 412 is provided with a stepped hole 4121, the tail of the die core 411 is provided with a first bolt hole 4112, and the die sleeve 412 and the die core 411 are fixedly connected through a connecting disc 413 provided with a second bolt hole 4131.

In a preferred embodiment, the mold core 20 includes a third base 21; the third base 21 is provided in a ring column shape and forms a central void 211 at a central position; the reinforcing member 42 is provided in a cylindrical shape, and the reinforcing member 42 insertably engages with the central void 211.

In a preferred embodiment, the mold core 20 is concentrically engaged with the first cavity 43; the central void 211 is disposed concentrically with the third substrate 21.

The utility model is further illustrated by the following examples.

Examples

The embodiment provides a magnetizing die, as shown in fig. 2, which comprises a base station 10 and a die assembly, wherein the die assembly is matched with the base station 10 to realize magnetic ring molding and magnetization; the abutment 10 is used to provide a mounting basis and a force basis for the mold assembly.

The front mold insert 30 and the rear mold assembly are respectively provided at the upper and lower sides of the base 10; the mold core 20 is assembled inside the rear mold assembly; the mold core 20 is used for forming a main body part of the magnetic ring; the front mold insert 30 is used for forming the front end of the magnetic ring by pressing.

The rear mold assembly fixes the mold core 20 on one hand and also has the function of magnetizing the magnetic ring to be molded on the other hand.

As shown in fig. 7, the rear module includes a first base 41, a column (one specific configuration of the reinforcement 42); the first matrix 41 is internally provided with a first cavity 43, and the die core 20 is assembled and matched with the first cavity 43; the cylinder is matched with the die cavity concentrically.

The mold core 20 comprises a third base 21, and the third base 21 is arranged into an annular column structure; the cylinder is insertable into the central void 211 of the annular cylinder; by matching the cylinder with the die core 20, the radial matching strength of the die core 20 is enhanced, and radial play of the die core is prevented, so that the accuracy of the molding of the male die is improved.

The first substrate 41 is provided with 4 magnetizing positions 4111, the four magnetizing positions 4111 respectively correspond to four magnetic pole areas of the magnetic ring, and the magnetic ring is magnetized in a partitioning mode through the magnetizing positions 4111, so that the final product is provided with four-pole magnetic poles. It should be noted that the magnetizing technology may be a conventional technology, and the improvement of the present application is mainly aimed at the structure of the mold.

A front mold insert 30, as shown in fig. 3, including a second base 31, a punch pin 32; the second base 31 is cylindrical, and has a truncated cone-shaped male die end 311 at its front end, where the male die end 311 can be in contact with the magnetic ring in a punching manner for shaping the front end of the magnetic ring.

As shown in fig. 4, 4 second cavities 312 are circumferentially arranged in the second base 31 at intervals, and the punch pins 32 are insertedly matched with the second cavities 312, and as shown in fig. 6, the punch pins 32 are used for forming notch grooves 53 on the surface of the magnetic ring.

The second cavity 312 is provided in a tapered shape having one end wide and the other end narrow; correspondingly, the shape of the punch pin 32 is set corresponding to the shape of the second cavity 312, and the wider end has the advantages of high structural strength and strong bearing capacity when receiving larger pressure, and the narrower end is used for forming on the surface of the magnetic ring.

One end of the second substrate 31 is provided with a connecting flange 33, and two sides of the connecting flange 33 are provided with truncated side walls 331; the truncated side wall 331 can form a plane clamping position with the mounting component, so that the matching strength is high, and the stress is convenient; that is, by being clamped at the truncated side wall 331, the second substrate 31 can be rotated better.

The abutment 10 is provided with a tapered through hole corresponding to the male die.

As shown in fig. 7, the first substrate 41 is composed of a mold core 411 and a mold sleeve 412, the mold core 411 is sleeved with the mold sleeve 412, and a magnetizing position 4111 is arranged on the mold core 411.

The mold core 411 and the mold sleeve 412 are connected at the tail part through a connecting disc 413.

Specifically, the die sleeve 412 is provided with a stepped hole 4121, and the tail of the die core 411 is provided with a first bolt hole 4112; as shown in fig. 8, a second bolt hole 4131 is provided in the connecting disc 413 corresponding to the first bolt hole 4112; as shown in fig. 9, the connecting disc 413 is clamped on the die sleeve 412 through the stepped hole 4121 and is matched with the die core 411, and the die core 411 and the die sleeve 412 are fixed for connection through the matching of the bolt and the first bolt hole 4112.

The implementation mode of the application as a whole is as follows:

assembling and matching the die core 20 with the die cavity of the rear die assembly, so that the die core 20 is clamped in the die cavity; then, fixing the assembled rear mold assembly on one side of the base 10, and inserting the post after fixing to improve the matching strength of the mold core 20 and the mold cavity in the radial direction;

after the rear die assembly and the die core 20 are matched with the base station 10, the second matrix 31 of the front die insert 30 is used for stamping and forming the magnetic ring to be formed of the die core 20, and then the stamping needle 32 is used for forming the top surface of the magnetic ring to be formed;

in the molding process, as shown in fig. 10, the magnetizing positions 4111 of the rear mold assembly magnetize the magnetic ring to be molded at the same time;

after the two processes of stamping and magnetizing are completed, the cooperation of the rear die assembly and the base 10 is released, the cooperation of the rear die assembly and the die core 20 is released, and the magnetic ring is taken out from the die core 20, so that the magnetization and molding of the magnetic ring 50 shown in fig. 1 are completed.

Compared with the prior art, the application has the advantages that:

the rear mold assembly provides stability, can resist shaking and tilting force of the mold core 20 caused by stamping of the front mold insert 30, improves molding accuracy, effectively protects the magnetic ring from damage, and improves yield. In addition, the front mold insert 30 is stamped and the rear mold assembly is magnetized, and the stamping and magnetizing processes are synchronously performed, so that the processing efficiency is improved.

The present utility model is illustrated by way of example and not limitation, and other variations to the disclosed embodiments, as would be readily apparent to one skilled in the art, are intended to be within the scope of the utility model as defined in the claims.

Claims

1. A magnetic ring, characterized in that:

the novel ring-shaped cylindrical main body (51) is characterized in that a punching opening (52) is formed at least one end of the main body (51), and a plurality of notch grooves (53) are formed in the circumferential direction at the end of the main body (51) where the punching opening (52) is formed.

2. A magnetizing die, characterized in that:

comprises a mould assembly which can be matched with a base station (10) for use; the die assembly comprises a die core (20), a front die insert (30) and a rear die insert (40); the die core (20) is assembled inside the rear die insert (40); the front mold insert (30) can be matched with the rear mold insert (40) towards the mold core (20); the front die insert (30) comprises a second base body (31) and a punch pin (32), wherein a plurality of second cavities (312) are formed in the second base body (31) at intervals along the circumferential direction; the punch pin (32) can be inserted into the second cavity (312) and exposed for punching to form the notch groove (53).

3. A magnetizing mould according to claim 2, characterized in that:

the front end of the second base body (31) forms a truncated cone-shaped male die end (311), and the punch needle (32) can be matched with the second cavity (312) to finish the punch forming of the magnetic ring to be formed.

4. A magnetizing mould according to claim 2, characterized in that:

the second cavity (312) is arranged in a conical shape with one end being wide and the other end being narrow, and the shape of the punch pin (32) is arranged corresponding to the shape of the second cavity (312).

5. A magnetizing mould according to claim 2, characterized in that:

one end of the second substrate (31) is provided with a connecting flange (33), and two sides of the connecting flange (33) are provided with truncated side walls (331).

6. A magnetizing mould according to claim 2, characterized in that:

the rear mold insert (40) comprises a first base body (41) and a reinforcing piece (42), wherein a first cavity (43) is formed in the first base body (41) corresponding to the mold core (20), and the reinforcing piece (42) and the mold core (20) can be in plug-in fit along the axial direction of the first base body (41).

7. A magnetizing die as claimed in claim 6, wherein:

the first matrix (41) mainly comprises a mold core (411) and a mold sleeve (412); the mold core (411) is in sleeve joint with the mold sleeve (412); 4 magnetizing positions (4111) capable of magnetizing the magnetic ring to be formed are arranged on the mold core (411).

8. A magnetizing die as claimed in claim 7, characterized in that:

the die sleeve (412) is characterized in that a stepped hole (4121) is formed in the end portion of the die sleeve (412), a first bolt hole (4112) is formed in the tail portion of the die core (411), and the die sleeve (412) and the die core (411) are fixedly connected through a connecting disc (413) provided with a second bolt hole (4131).

9. A magnetizing die as claimed in claim 6, wherein:

the die core (20) comprises a third matrix (21); the third base body (21) is arranged in a ring column shape, and a central vacancy (211) is formed at the central position; the reinforcement (42) is provided in a cylindrical shape, the reinforcement (42) being insertably fitted with the central void (211).

10. A magnetizing die as claimed in claim 9, wherein:

the die core (20) is concentrically matched with the first die cavity (43); the central void (211) is concentrically disposed within the third base (21).