CN210156252U

CN210156252U - Amorphous and nanocrystalline magnetic core annealing clamp

Info

Publication number: CN210156252U
Application number: CN201921156218.0U
Authority: CN
Inventors: 左海军; 谭智; 谭炎红
Original assignee: Beiliu Electronic Co Ltd
Current assignee: Beiliu Electronic Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-03-17
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses an amorphous, nanocrystalline magnetic core annealing anchor clamps relates to the technical field of magnetic core processing technology, has solved the magnetic core and has appeared the technical problem who warp easily because of the magnetic core shrink when annealing or solidification. The magnetic core comprises a fixed ring, wherein the fixed ring is inserted in the magnetic core, and the outer wall of the fixed ring is matched with the inner wall of the magnetic core. The utility model discloses an inner ring cooperation of decide type circle and magnetic core, when magnetic core annealing or solidification, can guarantee that the magnetic core is just circular all the time, and its easy dismounting still can not cause the bubbly phenomenon in magnetic core surface when taking out the magnetic core, great improvement the qualification rate of product.

Description

Amorphous and nanocrystalline magnetic core annealing clamp

Technical Field

The utility model relates to a magnetic core processing technology's technical field, more specifically says that it relates to an amorphous, nanocrystalline magnetic core annealing anchor clamps.

Background

When the magnetic core is annealed, if the magnetic core is not shaped by a clamp, the phenomenon of flattening or ellipse deformation is easy to occur. If the magnetic core appears flat or oval during annealing, when the magnetic core is solidified, the magnetic core needs to be restored to a perfect circle, but the magnetic permeability of the magnetic core is greatly reduced, the parameters of the magnetic core are affected, and even the magnetic core is scrapped. The reasons for the decrease in permeability are: since the permeability of the core is already formed according to the shape of the core when the core is annealed in the furnace, the permeability of the severely deformed core is lost by about one time. Therefore, when annealing, the amorphous or nanocrystalline magnetic core is required to be round in the annealing furnace all the time, and the flat or oval condition can not occur when solidifying, so that the magnetic permeability can be ensured.

At present, in order to ensure the shape of the magnetic core, a winding die is generally adopted to shape the periphery of the magnetic core. However, when the core is pushed out, the core tends to be wrapped; in addition, the magnetic core is shrunk during annealing, so that the shape of the magnetic core during annealing cannot be guaranteed to be a perfect circle, defective products are more, and the magnetic permeability of the magnetic core cannot be well guaranteed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to prior art, provide an amorphous, nanocrystalline magnetic core annealing anchor clamps, the effectual magnetic core of having guaranteed is just circular when annealing or solidification.

The technical scheme of the utility model lies in: the amorphous and nanocrystalline magnetic core annealing fixture comprises a fixed ring, wherein the fixed ring is inserted into the magnetic core, and the outer wall of the fixed ring is matched with the inner wall of the magnetic core.

The improved structure of the split type solar energy transformer is characterized in that a cutting groove for dividing the shaping ring into a first ring body and a second ring body which are split is formed in the shaping ring, and the first ring body and the second ring body are connected through a fixing device.

Furthermore, one side of the first ring body is provided with a first mounting groove, one side of the second ring body is provided with a second mounting groove, the first mounting groove is communicated with the second mounting groove, one end of the fixing device is mounted in the first mounting groove, and the other end of the fixing device is mounted in the second mounting groove.

Furthermore, the fixing device comprises at least one fixing rod and a locking assembly, and two ends of the fixing rod are respectively installed in the first installation groove and the second installation groove through the locking assembly.

Furthermore, the locking assembly is a fixing bolt, one end of the fixing rod is provided with a mounting hole for mounting the fixing bolt, and the other end of the fixing rod is provided with a long waist-shaped mounting hole for mounting the fixing bolt.

Furthermore, a gap corresponding to the shrinkage size of the magnetic core is arranged between the magnetic core and the shaping ring.

Furthermore, a buffer layer is arranged in a gap between the magnetic core and the shaping ring, and the buffer layer wraps the outer wall of the shaping ring.

Furthermore, the shaping ring is provided with a central through hole.

Furthermore, one side of the fixed ring is provided with a supporting plate extending outwards, and the supporting plate is attached to the side face of the magnetic core.

Advantageous effects

The utility model has the advantages that:

1. the shaping ring matched with the inner ring of the magnetic core is inserted in the magnetic core, so that the inner ring of the magnetic core can be effectively shaped when the magnetic core is annealed and shrunk, the problem that the inner ring of the magnetic core is deformed due to shrinkage of the magnetic core is avoided, the magnetic core is ensured to be circular when being annealed or solidified, the qualification rate of products is greatly improved, and the quality of the products is also improved.

2. The shaping ring is divided into a first ring body and a second ring body which are separated by a cutting groove. The first ring body and the second ring body are fixedly connected through the fixing device, the first ring body and the second ring body of the split type are effectively connected, and the fact that the clamp can effectively shape the magnetic core is guaranteed. After the magnetic core is annealed, the magnetic core can be easily taken out from the clamp only by disassembling the fixing device for fixing the first ring body and the second ring body, the phenomenon that the magnetic core is pushed out to cause the surface of the magnetic core to be wrapped is avoided, and the magnetic core is convenient to disassemble and assemble and is more practical. And the existence of grooving makes this anchor clamps have certain deformability, and when the shrink stress of magnetic core was too big, this anchor clamps accessible self deformation offset partial shrink stress, and effectual protection is protected to the magnetic core.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the present invention.

Wherein: 1-magnetic core, 2-shaped ring, 3-cutting groove, 4-first mounting groove, 5-second mounting groove, 6-through hole, 7-fixing rod, 8-fixing bolt, 9-supporting plate, 10-buffer layer, 11-gap, 21-first ring body and 22-second ring body.

Detailed Description

The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, but are intended to be covered by the appended claims in any way.

Referring to fig. 1-2, the annealing fixture for amorphous and nanocrystalline magnetic cores of the present invention includes a shaped ring 2. The fixed ring 2 is inserted in the magnetic core 1, and the outer wall of the fixed ring 2 is adapted to the inner wall of the magnetic core 1. Through one with 1 inner ring of magnetic core suit design circle 2 peg graft in magnetic core 1, when magnetic core 1 annealing, magnetic core 1 is stereotyped fixedly by design circle 2 at the in-process of shrink to carry out effectual design to 1 inner ring of magnetic core, avoided making its problem of deformation because of 1 shrink of magnetic core, and then guaranteed that magnetic core 1 is just circular when annealing or solidification, great improvement the qualification rate of product, also improved the quality of product simultaneously.

Preferably, a gap 11 corresponding to the shrinkage size of the magnetic core 1 is arranged between the magnetic core 1 and the shaping ring 2, so that shrinkage allowance is provided for the annealing of the magnetic core, and the magnetic core 1 can be smoothly shrunk. The core 1 has different dimensions during annealing, and the core 1 has different shrinkage dimensions, as shown in the following table:

it can be seen that the larger core 1 size and shrinkage size: the larger its size, the larger its shrinkage size. Therefore, the size of the gap 11 between the magnetic core 1 and the shaping ring 2 can be selected according to the magnetic cores 1 with different specifications so as to be suitable for the magnetic cores 1 with different specifications.

Preferably, a buffer layer 10 is arranged in a gap 11 between the magnetic core 1 and the shaping ring 2, and the buffer layer 10 is wrapped on the outer wall of the shaping ring 2. Specifically, the buffer layer 10 is a cushion paper, and can be used for buffering and absorbing the shrinkage stress of the magnetic core 1, and further protecting the magnetic core 1.

The fixed ring 2 is provided with a cutting groove 3 which divides the fixed ring 2 into a first ring body 21 and a second ring body 22 which are separated, and the first ring body 21 and the second ring body 22 are connected through a fixing device. Due to the existence of the cutting groove 3, the clamp has certain deformation capacity, when the shrinkage stress of the magnetic core 1 is overlarge, the clamp can offset partial shrinkage stress through self deformation, and the magnetic core 1 is effectively protected. The independent first ring body 21 and the second ring body 22 enable the magnetic core 1 to be easily taken out of the fixture, so that the phenomenon that the surface of the magnetic core 1 is wrapped due to the fact that the magnetic core 1 is withdrawn is avoided, the integrity of the disassembled magnetic core 1 is guaranteed, and the quality of products is further improved. And the first ring body 21 and the second ring body 22 are connected through a fixing device, so that the first ring body 21 and the second ring body 22 which are separated are effectively connected, and the clamp can effectively shape the magnetic core 1. In addition, after the magnetic core 1 is annealed, the magnetic core 1 can be taken out only by disassembling the fixing device, so that the magnetic core is convenient to disassemble and assemble and has better practicability.

One side of the first ring body 21 is provided with a first mounting groove 4, one side of the second ring body 22 is provided with a second mounting groove 5, the first mounting groove 4 is communicated with the second mounting groove 5, one end of the fixing device is mounted in the first mounting groove 4, and the other end is mounted in the second mounting groove 5. Install fixing device in anchor clamps, when magnetic core 1 anneals, make the shrinkage stress that anchor clamps received more even distribution on anchor clamps, the effectual anchor clamps of having guaranteed are just circular all the time in annealing process, have improved the reliability of this anchor clamps greatly.

In this embodiment, the fixation device comprises at least one fixation rod 7 and a locking assembly. Specifically, the number of the fixing bars 7 is two. The first ring body 21 and the second ring body 22 are positioned through the two fixing rods 7, so that the clamp is more stable and firm, and the reliability of the clamp is further improved. Both ends of the fixing rod 7 are respectively installed in the first and second installation grooves 4 and 5 by locking assemblies, thereby fixing the first and

second ring bodies

21 and 22 in the magnetic core 1. In this embodiment, the locking assembly is a fixing bolt 8.

Preferably, one end of each fixing rod 7 is provided with a mounting hole for mounting the fixing bolt 8, the other end of each fixing rod 7 is provided with a long kidney-shaped mounting hole for mounting the fixing bolt 8, and the first ring body 21 and the second ring body 22 are both provided with corresponding threaded holes therein. Through setting up long waist shape mounting hole in 7 one ends of dead lever, when dismantling anchor clamps, only need loosen fixing bolt 8 on the long waist shape mounting hole, can make magnetic core 1 not hard up to take out magnetic core 1 easily, further improved the convenience of this anchor clamps dismouting, and improved the practicality of this anchor clamps greatly.

Preferably, the shape fixing ring 2 is a circular disk, so that the shape fixing ring 2 is completely contacted with the inner wall of the magnetic core 1, thereby facilitating better shape fixing of the magnetic core 1. The fixed ring 2 is provided with a central through hole 6, so that the fixed ring 2 forms a circular ring which is convenient for an operator to take in the moving process of the clamp; in addition, the whole weight of the clamp can be reduced, the clamp is light and convenient, and the material cost of the clamp is also reduced. One side of the fixing ring 2 is provided with a support plate 9 extending outward, and in particular, the support plate 9 is provided at the opposite side to the first and

second mounting grooves

21 and 22. Backup pad 9 is connected with the side laminating of magnetic core 1, makes backup pad 9 can support magnetic core 1, avoids magnetic core 1 to drop from anchor clamps at the in-process that removes, has further protected magnetic core 1.

The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.

Claims

1. The amorphous and nanocrystalline magnetic core annealing fixture is characterized by comprising a fixed ring (2), wherein the fixed ring (2) is inserted into a magnetic core (1), and the outer wall of the fixed ring (2) is adapted to the inner wall of the magnetic core (1).

2. The annealing fixture for the amorphous and nanocrystalline magnetic core according to claim 1, characterized in that the fixed ring (2) is provided with a slot (3) for dividing the fixed ring (2) into a first ring body (21) and a second ring body (22) which are separated, and the first ring body (21) and the second ring body (22) are connected through a fixing device.

3. The annealing fixture for amorphous and nanocrystalline magnetic core according to claim 2, wherein one side of the first ring body (21) is provided with a first mounting groove (4), one side of the second ring body (22) is provided with a second mounting groove (5), the first mounting groove (4) is communicated with the second mounting groove (5), one end of the fixing device is mounted in the first mounting groove (4), and the other end is mounted in the second mounting groove (5).

4. The annealing fixture for amorphous and nanocrystalline magnetic core according to claim 3, wherein the fixing device comprises at least one fixing rod (7) and a locking component, and two ends of the fixing rod (7) are respectively installed in the first installation groove (4) and the second installation groove (5) through the locking component.

5. The annealing fixture for amorphous and nanocrystalline magnetic cores according to claim 4, wherein the locking component is a fixing bolt (8), one end of each fixing rod (7) is provided with a mounting hole for mounting the fixing bolt (8), and the other end of each fixing rod (7) is provided with a long kidney-shaped mounting hole for mounting the fixing bolt (8).

6. An amorphous, nanocrystalline magnetic core annealing fixture according to claim 1, characterized in that a gap (11) corresponding to the shrinkage size of the magnetic core (1) is provided between the magnetic core (1) and the sizing ring (2).

7. The annealing fixture for the amorphous and nanocrystalline magnetic core according to claim 6, characterized in that a buffer layer (10) is arranged in a gap (11) between the magnetic core (1) and the shaping ring (2), and the buffer layer (10) is wrapped on the outer wall of the shaping ring (2).

8. An amorphous, nanocrystalline magnetic core annealing fixture according to any one of claims 1-7, characterized in that the shaped ring (2) is provided with a central through hole (6).

9. An amorphous and nanocrystalline magnetic core annealing fixture according to any one of claims 1 to 7, characterized in that one side of the fixed ring (2) is provided with an outwardly extending support plate (9), and the support plate (9) is attached to the side surface of the magnetic core (1).