Magnetic core bonding auxiliary device

Abstract

The utility model belongs to the technical field of magnetic core bonding, and discloses a magnetic core bonding auxiliary device. The magnetic core bonding auxiliary device comprises a base and a pressing assembly, a limiting groove is formed in the base, the limiting groove extends in the first direction and is used for placing two magnetic cores side by side in the first direction, and the magnetic cores can be attached to the side wall of the limiting groove and slide in the first direction; one end of the pressing assembly is connected to the base, and the other end of the pressing assembly is used for pushing the magnetic cores in an abutting mode from the first end of the limiting groove in the first direction and pressing the two magnetic cores together in an abutting mode. The magnetic core is placed in the limiting groove, the two sides of the magnetic core are attached to the side walls of the limiting groove, the magnetic core can only slide in the first direction, and therefore the magnetic core is limited preliminarily; the pressing assembly abuts against and pushes the magnetic cores from the limiting grooves in the first direction, and the two magnetic cores abut against each other, so that the magnetic cores cannot move, it is guaranteed that the two magnetic cores cannot be dislocated before glue is cured, and an air gap between the two magnetic cores can also be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic core bonding, in particular to a magnetic core bonding auxiliary device. Background Art

[0002] A magnetic core is a sintered magnetic metal oxide composed of a mixture of iron oxides. It is typically placed in the magnetic circuit of an inductor coil to increase the electromagnetic induction strength of the electromagnet. Magnetic cores can be manufactured using a one-piece pressing process. However, the pressing process is subject to various constraints, such as equipment pressure, powder ratio, and material stress. Therefore, some cores require bonding before use.

[0003] In the existing technology, glue is applied to the surface of the magnetic core, the two magnetic cores are visually aligned, and the glued surfaces of the two magnetic cores are manually bonded together; before the glue cures, the two magnetic cores are prone to misalignment, resulting in a low product qualification rate; manual bonding makes it difficult to bond the magnetic cores tightly, and air gaps are likely to appear between the two magnetic cores.

[0004] That is, the existing manual alignment and bonding of magnetic cores has the disadvantages that the two magnetic cores are easily misaligned before the glue is cured, resulting in a low product qualification rate, and an air gap is easily formed between the two magnetic cores. Utility Model Content

[0005] The purpose of the utility model is to provide a magnetic core bonding auxiliary device to solve the problems of the existing manual alignment and bonding of magnetic cores, such as the easy misalignment of the two magnetic cores before the glue is cured, resulting in a low product qualification rate, and the easy appearance of an air gap between the two magnetic cores.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a magnetic core bonding auxiliary device, which includes:

[0008] A base, wherein the base is provided with a limiting groove, the limiting groove extending along a first direction and being used for placing two magnetic cores side by side along the first direction, the magnetic cores being able to fit in the sidewalls of the limiting groove and slide along the first direction;

[0009] A pressing assembly has one end connected to the base and the other end used to press and push the magnetic core from the first end of the limiting groove along the first direction, and press the two magnetic cores together.

[0010] As an optional technical solution for a magnetic core bonding auxiliary device, the pressing assembly includes:

[0011] A pressing device, comprising a pull rod and an elastic member, wherein the pull rod is slidably disposed in the first direction and penetrates the base;

[0012] A pressing member is connected to the end of the pull rod and is used to press the magnetic core. The elastic member is located between the base and the pressing member.

[0013] As an optional technical solution of the magnetic core bonding auxiliary device, the clamper further includes an insert having a circular cross-section, the insert being embedded in the pressing member and being threadedly connected to the end of the pull rod.

[0014] As an optional technical solution of the magnetic core bonding auxiliary device, the pressing member is provided with a mounting groove, and the embedded member is embedded in the mounting groove;

[0015] The presser further includes a stopper fixed on the pressing member, and the stopper can limit the embedded member to be located in the installation groove.

[0016] As an optional technical solution for the magnetic core bonding auxiliary device, the clamp further includes a sleeve, the sleeve being embedded and fixed to the base, the pull rod slidingly extending through the sleeve, and the elastic member being sleeved over the pull rod and positioned between the sleeve and the pressing member. As an optional technical solution for the magnetic core bonding auxiliary device, the end of the pull rod is provided with a radially projecting stopper, and the end of the sleeve has a stopper surface, against which the stopper can abut.

[0017] As an optional technical solution for a magnetic core bonding auxiliary device, the base includes a bottom plate and two side plates arranged opposite to each other along the first direction, the limiting groove is arranged on the bottom plate, and the two side plates can be detachably connected to the bottom plate, the clamping assembly is arranged on the side plate, and each limiting groove corresponds to a clamping assembly, and the clamping assembly can press the two magnetic cores together against the second end of the limiting groove.

[0018] As an optional technical solution for the magnetic core bonding auxiliary device, the limiting groove is a waist-shaped groove for accommodating the two D-shaped magnetic cores.

[0019] As an optional technical solution of the magnetic core bonding auxiliary device, a plurality of the limiting grooves are arranged at intervals along the second direction, and the pressing components are arranged in a one-to-one correspondence with the limiting grooves.

[0020] As an optional technical solution for the magnetic core bonding auxiliary device, a glue overflow groove is provided on the base, and the glue overflow groove penetrates the base along the third direction.

[0021] Beneficial effects:

[0022] The utility model provides a magnetic core bonding auxiliary device, which includes a base and a clamping assembly. The base is provided with a limiting groove, which extends along a first direction and is used to place two magnetic cores side by side along the first direction. The magnetic cores can be fitted to the side walls of the limiting groove and slide along the first direction; one end of the clamping assembly is connected to the base, and the other end of the clamping assembly is used to press and push the magnetic core from the first end of the limiting groove along the first direction, and press the two magnetic cores together. By placing two magnetic cores in the limiting grooves, the two sides of each magnetic core are respectively attached to the two side walls of the limiting groove, and the magnetic core can only slide along the first direction, thereby achieving the initial limitation of the magnetic core; by setting a clamping component, the clamping component presses and pushes the magnetic core from one end of the limiting groove along the first direction, pressing the two magnetic cores together, so that the magnetic core cannot move, ensuring that the two magnetic cores will not be misaligned before the glue is cured, thereby improving the product qualification rate; the two magnetic cores are placed side by side along the first direction, and the glue-coated surfaces of the two magnetic cores are opposite to each other. The clamping component applies a clamping force to the magnetic cores, so that the two magnetic cores are tightly bonded, avoiding the formation of air gaps between the two magnetic cores. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a magnetic core bonding auxiliary device and a magnetic core provided by an embodiment of the utility model;

[0024] Figure 2 This is a schematic structural diagram of a base provided by an embodiment of the present utility model;

[0025] Figure 3 This is a cross-sectional view of a magnetic core bonding auxiliary device and a magnetic core provided by an embodiment of the present utility model;

[0026] Figure 4 This is an exploded view of the compression assembly provided by an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the pull rod and sleeve provided in the embodiment of the utility model Figure 1 ;

[0028] Figure 6 This is a schematic diagram of the structure of the pull rod and sleeve provided in the embodiment of the utility model Figure 2 .

[0029] In the picture:

[0030] 10. Base; 11. Bottom plate; 111. Limiting groove; 112. Glue overflow groove; 12. Side panel;

[0031] 20. Compression assembly; 21. Sleeve; 212. Slot; 22. Pull rod; 221. Limiting portion; 23. Locking member; 24. Elastic member; 25. Insert; 26. Stop member; 27. Fastener; 28. Pressing member; 281. Mounting slot;

[0032] 30. Magnetic core; 30a. First magnetic core; 30b. Second magnetic core. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0034] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0037] like Figures 1 to 4As shown, this embodiment provides a magnetic core bonding auxiliary device, wherein the first direction is taken as the x direction, the second direction is taken as the y direction, and the third direction is taken as the z direction; the magnetic core bonding auxiliary device includes a base 10 and a clamping assembly 20, and the base 10 is provided with a limiting groove 111, which extends along the x direction and is used to place two magnetic cores 30 side by side along the x direction, and the magnetic core 30 can be fitted to the side wall of the limiting groove 111 and slide along the x direction; one end of the clamping assembly 20 is connected to the base 10, and the other end of the clamping assembly 20 is used to press and push the magnetic core 30 from the first end of the limiting groove 111 along the x direction, and press the two magnetic cores 30 together.

[0038] By placing the two magnetic cores 30 in the limiting groove 111, the two sides of each magnetic core 30 are respectively attached to the two side walls of the limiting groove 111, and the magnetic core 30 can only slide along the x direction, thereby achieving the initial limitation of the magnetic core 30; by setting a clamping component 20, the clamping component 20 presses and pushes the magnetic core 30 from one end of the limiting groove 111 along the x direction, pressing the two magnetic cores 30 together, so that the magnetic core 30 cannot move, ensuring that the two magnetic cores 30 will not be misaligned before the glue is cured, thereby improving the product qualification rate; the two magnetic cores 30 are placed side by side along the x direction, and the glue-coated surfaces of the two magnetic cores 30 are opposite to each other. The clamping component 20 applies a clamping force to the magnetic core 30, so that the two magnetic cores 30 are tightly bonded, avoiding the formation of air gaps between the two magnetic cores 30.

[0039] Specifically, the base 10 includes a bottom plate 11 and two side plates 12. The two side plates 12 are arranged opposite each other along the x-direction. Both side plates 12 are detachably connected to the bottom plate 11. A limiting groove 111 is provided on the bottom plate 11. A pressing assembly 20 is provided on the side plates 12, and each limiting groove 111 is provided with a corresponding pressing assembly 20. The pressing assembly 20 can press the two magnetic cores 30 together against the second end of the limiting groove 111. It is understood that in some other embodiments, two pressing assemblies 20 can be provided corresponding to each limiting groove 111, and the two pressing assemblies 20 can press the two magnetic cores 30 together along the first direction. By providing a detachable bottom plate 11 and side plate 12, the structure is simple and easy to assemble and disassemble; by providing a limiting groove 111 on the bottom plate 11 and providing the clamping assembly 20 on the side plate 12, so that the bottom of the magnetic core 30 is accommodated in the limiting groove 111, the upper part of the magnetic core 30 protrudes from the surface of the bottom plate 11, and the clamping assembly 20 presses the upper side surface of the magnetic core 30 along the x direction, thereby pressing the magnetic core 30 into the limiting groove 111.

[0040] In this embodiment, the bottom plate 11 and the side plates 12 are connected by screws, and the planes of the two side plates 12 are perpendicular to the plane of the bottom plate 11. The screws can be M6 screws. In other embodiments, the base 10 can also be an integrally formed structure.

[0041] In this embodiment, the x-direction is the width direction of the base 10, the y-direction is the length direction of the base 10, and the z-direction is the height direction of the base 10; the x-direction is also the length direction of the limiting groove 111; the two magnetic cores 30 are respectively the first magnetic core 30a and the second magnetic core 30b, and the first magnetic core 30a and the second magnetic core 30b are both D-shaped; the limiting groove 111 is a waist-shaped groove; the first magnetic core 30a and the second magnetic core 30b are arranged side by side in the limiting groove 111 along the x-direction, and the first magnetic core 30a and the second magnetic core 30b have planes opposite to each other and arc surfaces back to each other, and the planes are coated with a glue layer for bonding. The total length of the limiting groove 111 along the x-direction is slightly larger than the total length of the first magnetic core 30a and the second magnetic core 30b along the x-direction.

[0042] By setting a waist-shaped groove, the waist-shaped groove has two flat side walls arranged around the bottom surface of the groove and curved walls at both ends. The two flat side walls are arranged opposite to each other along the y direction, and the two curved side walls are arranged opposite to each other along the x direction; the two flat side walls of the waist-shaped groove match the width of the D-shaped magnetic core 30, so that both sides of the D-shaped magnetic core 30 are fitted on the flat side walls of the waist-shaped groove; the curved inner wall of the waist-shaped groove can cooperate with the curved surface of the D-shaped magnetic core 30. Under the action of the clamping assembly 20, the curved surface of the D-shaped magnetic core 30 fits and rests on the curved inner wall of the waist-shaped groove, thereby stably limiting the magnetic core 30.

[0043] Specifically, a plurality of limiting grooves 111 are arranged at intervals along the y direction, and the clamping assemblies 20 are arranged in a one-to-one correspondence with the limiting grooves 111; two magnetic cores 30 are placed in each limiting groove 111. By providing a plurality of limiting grooves 111 and correspondingly providing a plurality of groups of clamping assemblies 20, the magnetic core bonding auxiliary device can simultaneously meet the bonding requirements of multiple magnetic cores 30. In this embodiment, four limiting grooves 111 are arranged at intervals, and four clamping assemblies 20 are also provided accordingly, and the four clamping assemblies 20 are all provided on the same side plate 12. In other embodiments, the clamping assemblies 20 can be provided on both side plates 12. In some other embodiments, not only a plurality of limiting grooves 111 are arranged at intervals along the y direction, but two can also be provided at intervals along the X direction.

[0044] Optionally, a glue overflow groove 112 is further provided on the bottom plate 11, and the glue overflow groove 112 passes through the bottom plate 11 along the z-direction. By providing the glue overflow groove 112 passing through the bottom plate 11, if glue overflows between the first magnetic core 30a and the second magnetic core 30b, the glue can flow out through the glue overflow groove 112, thereby preventing a large amount of glue from overflowing and accumulating in the base 10, causing it to adhere to the base 10 after curing.

[0045] In this embodiment, the y direction is the length direction of the overflow glue groove 112, the middle part of the overflow glue groove 112 is located in the limiting groove 111 and extends along the y direction to the flat side walls of the two ends protruding from the limiting groove 111; the overflow glue groove 112 and the limiting groove 111 are arranged in a one-to-one correspondence.

[0046] Furthermore, the clamping assembly 20 includes a clamp and a pressing member 28. The clamp includes a pull rod 22 and an elastic member 24. The pull rod 22 slides through the base 10 along the x direction; the pressing member 28 is connected to the end of the pull rod 22 for pressing the magnetic core 30. The elastic member 24 is located between the base 10 and the pressing member 28.

[0047] By setting the pull rod 22 and the pressing member 28, the pull rod 22 is pulled along the x direction to move the pressing member 28 away from the limiting groove 111, and the magnetic core 30 is placed in the limiting groove 111. The pull rod 22 is released, and under the action of the elastic member 24, the pressing member 28 can press the magnetic core 30 along the x direction.

[0048] In this embodiment, the pressing member 28 is flat, with the plane of the pressing member 28 being parallel to the bottom surface of the limiting groove 111. The pressing member 28 has a mounting flat surface and a pressing curved surface on either side along the x-direction. The pull rod 22 is connected to the mounting flat surface, and the axis of the pull rod 22 is perpendicular to the mounting flat surface. The pressing curved surface matches the curved surface of the D-shaped magnetic core 30. The elastic member 24 may be a spring.

[0049] By providing the pressing member 28 with a pressing arc surface, the pressing arc surface can fit the arc surface of the magnetic core 30, thereby evenly transmitting the pressing force, which helps to ensure that the glue is evenly adhered to the opposing planes of the first magnetic core 30a and the second magnetic core 30b.

[0050] To connect the pressure piece 28 to the pull rod 22, the compactor further includes an insert 25 having a circular cross-section. The insert 25 is embedded in the pressure piece 28 and is threadedly connected to the end of the pull rod 22. By providing the insert 25, the pressure piece 28 is connected to the pull rod 22 via the insert 25. During installation, the insert 25 can be tightened to the end of the pull rod 22 and then embedded in the pressure piece 28. The circular cross-section of the insert 25 allows for adjustment of the relative installation angle between the insert 25 and the pressure piece 28, thus avoiding the problem of the pressure piece 28 being restricted by the threads and having difficulty maintaining the installation angle when the pressure piece 28 is directly threaded to the pull rod 22.

[0051] Furthermore, the pressing member 28 is provided with a mounting groove 281 , and the insert 25 is embedded in the mounting groove 281 ; the pressing device also includes a stopper 26 , which is fixed to the pressing member 28 and can limit the insert 25 in the mounting groove 281 .

[0052] In this embodiment, the stopper 26 is plate-shaped, and the mounting groove 281 forms an opening on the mounting plane of the pressing member 28. The insert 25 is placed in the mounting groove 281 through the opening. When the pull rod 22 rotates, the pull rod 22 can drive the insert 25 to rotate in the mounting groove 281; the stopper 26 is arranged at the opening of the mounting groove 281 to stop the insert 25; the stopper 26 is fixed to the pressing member 28 by a fastener 27.

[0053] See also Figure 4 A U-shaped clearance is provided in the center of stopper 26 to allow pull rod 22 to pass through and connect to insert 25. Threaded holes are symmetrically provided on either side of stopper 26 for fasteners 27 to pass through. Fasteners 27 are inserted through the threaded holes and their ends are threadedly connected to pressure member 28. Two fasteners 27 are provided, and they can be screws; M5 screws are preferred. The symmetrical arrangement of the two fasteners 27 secures stopper 26 to pressure member 28, preventing it from loosening during use.

[0054] To guide the pull rod 22 in sliding, the presser further includes a sleeve 21, which is embedded and fixed to the base 10. The pull rod 22 slides through the sleeve 21. The elastic member 24 is sleeved around the pull rod 22 and located between the sleeve 21 and the stopper 26. The sleeve 21 acts as a guide, allowing the pull rod 22 to move in the x-direction, thereby improving the accuracy of the position of the pressing member 28 pressing against the magnetic core 30.

[0055] In this embodiment, the end of the sleeve 21 is threaded and secured to the side plate 12 of the base 10 via a locking member 23. A radially projecting stopper 221 is provided at the end of the pull rod 22. The end of the sleeve 21 has a stopper surface against which the stopper 221 can press. The locking member 23 may be a nut.

[0056] Because the elastic member 24 is located between the sleeve 21 and the stop member 26, the relative position of the sleeve 21 and the side plate 12 can be changed by adjusting the locking member 23, thereby varying the degree of compression of the elastic member 24 and, in turn, adjusting the pressing force applied by the clamping assembly 20, thereby ensuring the thickness of the glue coating between the first magnetic core 30a and the second magnetic core 30b. By providing a limiting surface on the sleeve 21, when the pull rod 22 moves to a certain position, the limiting portion 221 abuts against the limiting surface, thereby limiting the pull rod 22 and preventing it from moving excessively.

[0057] The following is the specific use process of the magnetic core bonding auxiliary device:

[0058] See also Figures 4 to 6The first end of the sleeve 21 is passed through the side plate 12 of the base 10, and the second end of the sleeve 21 is against the outside of the side plate 12; the first end of the sleeve 21 extends out of the side plate 12 and is threadedly connected to the locking member 23, and the side plate 12 is clamped between the sleeve 21 and the locking member 23; the end surface of the second end of the sleeve 21 is a limiting surface, and the second end of the sleeve 21 is provided with a slot 212; the limiting portion 221 can slide in the slot 212 along the x direction.

[0059] When the pull rod 22 is pulled until the limiting portion 221 is disengaged from the slot 212, the pull rod 22 is rotated (the pull rod 22 can be rotated 90 degrees around its own axis). Under the action of the elastic member 24, the pull rod 22 can be pressed against the end face of the second end of the sleeve 21. The end face of the sleeve 21 is used to limit the movement of the pull rod 22 along the x direction, so that the pressing member 28 is at the farthest position from the limiting slot 111, providing space for placing the magnetic core 30, and facilitating the placement of the two first magnetic cores 30a and the second magnetic core 30b in the limiting slot 111.

[0060] After the first magnetic core 30a and the second magnetic core 30b are placed side by side in the limit groove 111 along the x direction, the second magnetic core 30b is located between the first magnetic core 30a and the clamping assembly 20; the release rod 22 is rotated in the opposite direction (the pull rod 22 can be rotated 90 degrees in the opposite direction around its own axis), so that the pull rod 22 slides through the slot 212, and under the action of the elastic member 24, the pressing member 28 presses and pushes the second magnetic core 30b, and presses the first magnetic core 30a and the second magnetic core 30b together along the x direction against the arc wall at the end of the limit groove 111.

[0061] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A magnetic core bonding auxiliary device, characterized in that: include: A base (10), wherein the base (10) is provided with a limiting groove (111), the limiting groove (111) extending along a first direction for arranging two magnetic cores (30) side by side along the first direction, and the magnetic cores (30) can be fitted on the side wall of the limiting groove (111) and slide along the first direction; A pressing assembly (20) has one end connected to the base (10) and the other end used to press and push the magnetic core (30) along the first direction from the first end of the limiting groove (111) and press the two magnetic cores (30) together.

2. The magnetic core bonding auxiliary device according to claim 1, characterized in that: The pressing assembly (20) comprises: A pressing device, comprising a pull rod (22) and an elastic member (24), wherein the pull rod (22) is slidably disposed in the base (10) along the first direction; A pressing member (28) is connected to the end of the pull rod (22) and is used to press the magnetic core (30). The elastic member (24) is located between the base (10) and the pressing member (28).

3. The magnetic core bonding auxiliary device according to claim 2, characterized in that: The pressing device further comprises an insert (25) having a circular cross section. The insert (25) is embedded in the pressing member (28) and is threadedly connected to the end of the pull rod (22).

4. The magnetic core bonding auxiliary device according to claim 3, characterized in that: The pressing member (28) is provided with a mounting groove (281), and the embedding member (25) is embedded in the mounting groove (281); The pressing device further comprises a stopper (26), wherein the stopper (26) is fixed on the pressing member (28), and the stopper (26) is capable of limiting the embedding member (25) within the installation groove (281).

5. The magnetic core bonding auxiliary device according to claim 2, characterized in that: The compression device further comprises a sleeve (21), the sleeve (21) is embedded and fixed in the base (10), the pull rod (22) is slidably passed through the sleeve (21), and the elastic member (24) is sleeved on the pull rod (22) and is located between the sleeve (21) and the pressing member (28).

6. The magnetic core bonding auxiliary device according to claim 5, characterized in that: The end of the pull rod (22) is provided with a limiting portion (221) protruding in the radial direction, and the end of the sleeve (21) has a limiting surface, and the limiting portion (221) can abut against the limiting surface.

7. The magnetic core bonding auxiliary device according to any one of claims 1 to 6, characterized in that: The base (10) includes a bottom plate (11) and two side plates (12) arranged opposite to each other along the first direction, the limiting groove (111) is arranged on the bottom plate (11), and the two side plates (12) can be detachably connected to the bottom plate (11), the clamping assembly (20) is arranged on the side plate (12), and each limiting groove (111) is correspondingly provided with a clamping assembly (20), and the clamping assembly (20) can press the two magnetic cores (30) together against the second end of the limiting groove (111).

8. The magnetic core bonding auxiliary device according to any one of claims 1 to 6, characterized in that: The limiting groove (111) is a waist-shaped groove, used for accommodating the two D-shaped magnetic cores (30).

9. The magnetic core bonding auxiliary device according to any one of claims 1 to 6, characterized in that: A plurality of the limiting grooves (111) are arranged at intervals along the second direction, and the pressing components (20) are arranged in a one-to-one correspondence with the limiting grooves (111).

10. The magnetic core bonding auxiliary device according to any one of claims 1 to 6, characterized in that: A glue overflow groove (112) is provided on the base (10), and the glue overflow groove (112) penetrates the base (10) along a third direction.

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