An auxiliary tool for same-pole bonding of neodymium-iron-boron magnets

Abstract

The utility model discloses a kind of for neodymium-iron-boron magnet same pole bonding auxiliary tool, comprising: lower cover structure, the lower cover structure has vertical cavity;Polytetrafluoroethylene kit is set in the vertical cavity;And the upper cover structure is installed in the upper side of lower cover structure by quick clamp, when bonding neodymium-iron-boron magnet, by pressing quick clamp, drive the upper cover structure above lower cover structure downward pressure, to exert pressure on magnet placed in polytetrafluoroethylene kit.The utility model structure is simple, by the synergic cooperation between upper cover structure, lower cover structure and quick clamp, can bond two same pole magnets, solve the out-of-tolerance generated by the repulsive force between two magnet same poles and the bonding eccentricity, secondly, the existence of polytetrafluoroethylene kit, adhesive overflow also hindered magnet and shell are bonded together.

Description

Technical Field

[0001] This utility model relates to the field of co-polar bonding technology for neodymium iron boron magnets, specifically an auxiliary tooling for co-polar bonding of neodymium iron boron magnets. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets are widely used in various high-performance motors, sensors, and electronic devices due to their excellent magnetic properties. In certain specific applications, it is necessary to bond multiple cylindrical NdFeB magnets with their poles facing each other to achieve specific magnetic field distributions or structural design requirements.

[0003] However, due to the extremely high remanence and coercivity of high-performance NdFeB magnets, a strong repulsive force is generated between the magnets during the same-pole bonding process, making it difficult to achieve accurate positioning and stable bonding of the magnets using traditional manual methods. This not only affects assembly efficiency but also easily leads to problems such as magnet misalignment, weak bonding, or even magnet damage, thus affecting the performance and reliability of the final magnet. To address this, an auxiliary tooling for same-pole bonding of NdFeB magnets is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary tooling for bonding neodymium iron boron magnets to the same pole, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary tooling for bonding neodymium iron boron magnets to the same pole, comprising:

[0006] The lower cover structure has a vertical cavity;

[0007] A polytetrafluoroethylene (PTFE) kit is disposed within the vertical cavity; and

[0008] The upper cover structure, which is mounted on top of the lower cover structure via a quick-release clamp, applies pressure to the magnet placed inside the PTFE kit when bonding the neodymium iron boron magnet. This pressure is achieved by pressing the quick-release clamp and causing the upper cover structure above the lower cover structure to press downwards.

[0009] As a further embodiment of this utility model: the lower cover structure includes a housing and an observation window disposed on the housing, and a top hole is provided on the lower surface of the housing.

[0010] As a further embodiment of this utility model: the upper cover structure includes a pressing plate and a pressing column disposed below the pressing plate, and quick clamps are installed on both sides of the pressing plate.

[0011] As a further embodiment of this utility model: the quick clamp includes a first bracket and a second bracket, the first bracket and the second bracket are respectively mounted on the pressing plate and the housing, the second bracket is provided with a handle, and a pull rod is installed on the handle.

[0012] As a further embodiment of this utility model: one end of the handle is connected to the second bracket via a first pivot, and one end of the pull rod is connected to the middle of the handle via a second pivot.

[0013] As a further embodiment of this utility model, a limiting groove is provided on the first bracket.

[0014] As a further embodiment of this utility model: the polytetrafluoroethylene kit includes a polytetrafluoroethylene bushing disposed in a vertical cavity, the polytetrafluoroethylene bushing is provided with a limiting window, and two polytetrafluoroethylene gaskets are disposed inside the polytetrafluoroethylene bushing.

[0015] As a further aspect of this utility model, the position of the limiting window corresponds to the position of the observation window.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This application, through the coordinated cooperation between the upper cover structure, the lower cover structure and the quick clamp, can bond two magnets with the same poles, solving the problem of misalignment caused by the repulsive force between the two magnets with the same poles. Secondly, the presence of the polytetrafluoroethylene kit also prevents the overflowing adhesive from bonding the magnet and the shell together. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the auxiliary tooling of this utility model;

[0019] Figure 2 This is a schematic diagram of the auxiliary tooling locking mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the quick clamp of this utility model;

[0021] Figure 4 This is a schematic diagram of the observation window of this utility model;

[0022] Figure 5 This is a schematic diagram of the polytetrafluoroethylene kit of this utility model;

[0023] Figure 6 This is a schematic diagram of the bottom of the polytetrafluoroethylene kit of this utility model;

[0024] Figure 7 This is a cross-sectional view of the auxiliary tooling of this utility model;

[0025] In the picture:

[0026] 1. Lower cover structure; 11. Shell; 12. Observation window; 13. Top opening;

[0027] 2. Top cover structure; 21. Pressing plate; 22. Pressing column;

[0028] 3. Quick clamp; 31. First support; 32. Second support; 33. Handle; 34. Pull rod; 35. First pivot; 36. Second pivot;

[0029] 4. PTFE kit; 41. PTFE bushing; 42. Limiting window; 43. PTFE gasket. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-7 In this embodiment of the invention, an auxiliary tooling for bonding neodymium iron boron magnets to the same pole includes:

[0032] The lower cover structure 1 has a vertical cavity;

[0033] PTFE kit 4, disposed within the vertical cavity; and

[0034] The upper cover structure 2, which is mounted on the lower cover structure 1 via the quick clamp 3, applies pressure to the magnet placed inside the polytetrafluoroethylene kit 4 by pressing the quick clamp 3, which in turn causes the upper cover structure 2, located above the lower cover structure 1, to press downward.

[0035] Specifically, the interior of the vertical cavity is adapted to the exterior of the PTFE kit 4, allowing for better placement of the PTFE kit 4 within the vertical cavity and ensuring its stability. This prevents the PTFE kit 4 from easily shaking during the bonding of the magnets inside, which could cause it to tilt within the vertical cavity. The quick clamp 3 can be used to lock the position between the upper cover structure 2 and the lower cover structure 1, ensuring a tight connection between them. During the locking process, the end of the upper cover structure 2 continuously applies pressure to the magnets, resolving the misalignment caused by the repulsive force between the same poles of the two magnets. This also indirectly solves the problem of dimensional deviations caused by excessive adhesive during bonding. Furthermore, it prevents the danger of hand pinching due to magnetic pole reversal during operation, optimizing clamping efficiency and safety.

[0036] Please see Figure 4 and Figure 7 In one embodiment, preferably, the lower cover structure 1 includes a housing 11 and an observation window 12 disposed on the housing 11. A top hole 13 is provided on the lower surface of the housing 11. Furthermore, the observation window 12 can be configured to cooperate with the limiting window 42, so that the magnet does not need to be removed before its bonding status can be observed. The presence of the top hole 13 on the lower surface of the housing 11 allows the magnet to be pushed out from the inside of the polytetrafluoroethylene kit 4 after bonding, making it convenient for workers to remove the magnet.

[0037] Please see Figure 1 In one embodiment, preferably, the upper cover structure 2 includes a pressing plate 21 and a pressing post 22 disposed below the pressing plate 21. Quick clamps 3 are installed on both sides of the pressing plate 21. Furthermore, the pressing plate 21 is designed to provide support points for the quick clamps 3 and to limit the pressing post 22. The pressing post 22 is designed to apply a certain pressure to the magnet to ensure that it overcomes the repulsive force of the same pole of the magnet.

[0038] Please see Figure 1-3In one embodiment, preferably, the quick clamp 3 includes a first bracket 31 and a second bracket 32. The first bracket 31 and the second bracket 32 ​​are respectively mounted on the pressing plate 21 and the housing 11. The second bracket 32 ​​is provided with a handle 33, and a pull rod 34 is mounted on the handle 33. One end of the handle 33 is connected to the second bracket 32 ​​through a first rotating shaft 35, and one end of the pull rod 34 is connected to the middle of the handle 33 through a second rotating shaft 36. Furthermore, the first bracket 31 is provided with a limiting groove, and the end of the pull rod 34 away from the handle 33 can be inserted into the limiting groove. As the pull rod 34 moves downward, the first bracket 31 also moves downward. At the same time, the limiting groove plays a limiting role to prevent the pull rod 34 from disengaging during the movement. The quick clamp 3 is prior art and can be purchased directly from the market. Its working principle is a latch-type quick clamp, which will not be described in detail here.

[0039] Please see Figure 5-7 In one embodiment, preferably, the PTFE kit 4 includes a PTFE bushing 41 disposed in a vertical cavity. The PTFE bushing 41 is provided with a limiting window 42. The interior of the PTFE bushing 41 is provided with two PTFE gaskets 43. The position of the limiting window 42 corresponds to the position of the observation window 12. Furthermore, the PTFE bushing 41 has a cylindrical cavity to ensure the concentricity of the magnet. At the same time, the PTFE also prevents the overflowing adhesive from bonding the magnet and the housing 11 together.

[0040] Working principle and usage process of this utility model:

[0041] First, place the PTFE bushing 41 into the vertical cavity, then place a PTFE gasket 43 in and adjust it to be level. After the magnets are aligned with each other and coated with strong adhesive, place them into the PTFE bushing 41 one by one. Then, cover the top cover structure 2 and lock it with the quick clamp 3. The bonding and curing status of the magnets can be judged through the observation window 12 and the limiting window 42. At the same time, it can also be judged whether the size of the magnets exceeds the limit and there are defective products. When the strong adhesive has reached the curing time, the bonded magnets are pushed out through the reserved top hole 13 on the housing 11.

[0042] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0043] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. An auxiliary jig for same-pole bonding of a neodymium-iron-boron magnet, characterized by, include: The lower cover structure has a vertical cavity; A polytetrafluoroethylene (PTFE) kit is disposed within the vertical cavity; as well as The upper cover structure, which is mounted on top of the lower cover structure via a quick-release clamp, applies pressure to the magnet placed inside the PTFE kit when bonding the neodymium iron boron magnet. This pressure is achieved by pressing the quick-release clamp and causing the upper cover structure above the lower cover structure to press downwards.

2. The auxiliary jig for Nd-Fe-B magnetal same-pole bonding according to claim 1, wherein The lower cover structure includes a housing and an observation window on the housing, with a top hole on the lower surface of the housing.

3. The auxiliary jig for Nd-Fe-B magnetal same-pole bonding according to claim 2, wherein The upper cover structure includes a pressing plate and a pressing column located below the pressing plate. Quick clamps are installed on both sides of the pressing plate.

4. The auxiliary jig for Nd-Fe-B magnetal same-pole bonding according to claim 3, wherein The quick clamp includes a first bracket and a second bracket, which are respectively mounted on a pressing plate and a housing. The second bracket is provided with a handle, and a pull rod is installed on the handle.

5. The auxiliary jig for Nd-Fe-B magnetal same-pole bonding according to claim 4, wherein One end of the handle is connected to the second bracket via a first pivot, and one end of the pull rod is connected to the middle of the handle via a second pivot.

6. The auxiliary jig for Nd-Fe-B magnetal same-pole bonding according to claim 5, wherein The first bracket has a limiting groove.

7. The auxiliary jig for Nd-Fe-B magnetal same-pole bonding according to claim 2, wherein The polytetrafluoroethylene (PTFE) kit includes a PTFE bushing disposed in a vertical cavity, the PTFE bushing having a limiting window, and two PTFE gaskets disposed inside the PTFE bushing.

8. The auxiliary jig for Nd-Fe-B magnetal same-pole bonding according to claim 7, wherein The position of the limiting window corresponds to the position of the observation window.

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