Inductor core positioning tool

Abstract

The utility model relates to the technical field of inductance magnetic core, concretely is a kind of inductance magnetic core positioning tool, including bottom plate, locating plate and annular magnetic core, the upper surface of bottom plate is equipped with multiple symmetrical slides, the inner wall of slide is fixedly connected with slide bar, the outer wall of slide bar is equipped with first spring, one end of first spring is fixedly connected with slide, the outer wall of slide bar is slidably connected with sliding block.Compared with prior art, the patent is set by slide, slide bar, sliding block, first spring and clamping assembly, the sliding block on slide bar is extruded to slide by locating plate, so that sliding block extrudes first spring, the position of locating plate can be fixed, meanwhile locating plate can clamp different size annular magnetic core, the front and rear positions of annular magnetic core can be clamped by clamping assembly, avoid the drop of annular magnetic core, improve stability, meanwhile it can adapt to annular magnetic core of different thickness, so that annular magnetic core is always in central position, and the technical problem of deviation condition does not appear.

Description

Technical Field

[0001] This utility model relates to the field of inductor core technology, specifically to an inductor core positioning fixture. Background Technology

[0002] An inductor core refers to the magnetic core portion used in an inductor. It is typically made of a material with high permeability, which tightly confines the magnetic field around the inductor element, thereby increasing inductance. The primary function of an inductor core is to conduct electricity, and the high permeability of the core effectively confines the magnetic field, thus enhancing the inductor's performance.

[0003] The prior art, disclosed in CN217361353U, provides an inductor positioning fixture, comprising: a base plate; first positioning members, with multiple rows of the first positioning members arranged along the length of the base plate; and second positioning members, each row of the second positioning members located between two adjacent rows of the first positioning members; wherein the distance between two adjacent rows of the first positioning members is adjustable. This inductor positioning fixture, by setting the first and second positioning members, can center the toroidal core and the base, ensuring the quality of the inductor when using the same base to install toroidal cores of different diameters. By setting the first positioning members to slide along the base plate, the distance between two adjacent first positioning members can be adjusted, allowing the inductor positioning fixture to be applied to the assembly of toroidal cores of various sizes simultaneously, thus improving assembly efficiency.

[0004] With the above configuration, the existing positioning fixture, by setting a first positioning element and a second positioning element, can center the toroidal core and the base, ensuring the quality of the inductor when using the same base to install toroidal cores of different diameters. By setting the first positioning element to slide along the base plate, the distance between two adjacent first positioning elements can be adjusted, allowing the inductor positioning fixture to be applied to the assembly of toroidal cores of various sizes simultaneously, thus improving assembly efficiency. However, the inductor core of the existing technical solution has the following drawbacks during operation:

[0005] In the prior art, when the inductor core is in use, a larger core is placed between the first positioning members in the middle so that the core is aligned with the center of the base. However, when a core of the same size is placed between the first positioning members on both sides, the core will push the first positioning members to move. At this time, when the core is placed on the base, the center of the core is off-center from the center of the base, causing the core to be in an inclined state. This is not conducive to positioning the core, nor is it conducive to processing the core. Utility Model Content

[0006] This utility model aims to provide an inductor core positioning fixture, which is mainly used to solve the technical problem in the prior art that when a magnetic core is placed between the first positioning members located in the middle, and magnetic cores of the same size are placed on the first positioning seats on both sides, the center of the magnetic core deviates, resulting in inaccurate positioning of the magnetic core.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] An inductor core positioning fixture includes a base plate, a positioning plate, and an annular magnetic core. The upper surface of the base plate has multiple symmetrical slide tracks. A slide rod is fixedly connected to the inner wall of each slide track. A first spring is sleeved on the outer wall of each slide rod. One end of the first spring is fixedly connected to the slide track. A slider is slidably connected to the outer wall of the slide rod. The other end of the first spring is fixedly connected to the slider. The lower end of the positioning plate is fixedly connected to the upper surface of the slider. The positioning plate is slidably connected to the upper surface of the base plate. The outer surface of the annular magnetic core abuts against the inner wall of the positioning plate. The inner wall of the positioning plate has symmetrical movable grooves, and clamping components are installed inside the movable grooves.

[0009] The working principle and beneficial effects of this utility model:

[0010] 1. Working Principle: When clamping and positioning the toroidal magnetic core, first turn the knob to move the threaded rod and the pressing plate, causing the pressing plate to detach from the upper surface of the base plate. Then, place the toroidal magnetic core between the positioning plates. The outer surface of the toroidal magnetic core pushes the positioning plates to move to both sides, causing the positioning plates to move the slider on the outer wall of the slide rod. This causes the slider to compress the first spring. At the same time, the two side walls of the toroidal magnetic core compress the inclined surface on the clamping plate, causing the clamping plate to compress the sliding plate through the T-shaped rod. This causes the sliding plate to compress the second spring. The clamping plate clamps and fixes the toroidal magnetic core, while the positioning plate positions the toroidal magnetic core, completing the operation.

[0011] 2. Beneficial effects:

[0012] Existing technology, by setting a first positioning member and a second positioning member, can center the toroidal core and the base, ensuring the quality of the inductor when using the same base to install toroidal cores of different diameters. By making the first positioning member slide along the base plate, the distance between two adjacent first positioning members can be adjusted, allowing the inductor positioning fixture to be used for assembling toroidal cores of various sizes simultaneously, thus improving assembly efficiency. However, when using existing inductor cores, placing a larger core between the middle first positioning members to align the core with the center of the base results in the core pushing the first positioning members to move when placing cores of the same size between the two side first positioning members. When the magnetic core is placed on the base, its center deviates from the center of the base, causing it to be tilted. This makes positioning and processing the magnetic core difficult. This solution addresses this by using a slide rail, slide rod, slider, first spring, and clamping assembly. The positioning plate presses the slider onto the slide rod, causing the slider to press against the first spring, thus fixing the position of the positioning plate. The positioning plate can clamp toroidal magnetic cores of different sizes, and the clamping assembly can hold the toroidal magnetic core in its forward and backward positions, preventing it from falling off and improving stability. It can also accommodate toroidal magnetic cores of different thicknesses, ensuring the toroidal magnetic core remains centered and avoids any offset.

[0013] Preferably, the clamping assembly includes a second spring, which is fixedly connected to the inner wall of the movable groove. A sliding plate is fixedly connected to the other end of the second spring and slidably connected to the inner wall of the movable groove. A T-shaped groove is formed on the upper surface of the sliding plate, and a T-shaped rod is slidably connected to the inner wall of the T-shaped groove. A clamping plate is fixedly connected to one side of the T-shaped rod, and one side of the clamping plate is in contact with the outer wall of the toroidal magnetic core. Symmetrical guide grooves are formed on the inner wall of the movable groove, and guide components are provided on the inner wall of the guide grooves. By setting the clamping assembly, the front and rear positions of the toroidal magnetic core can be clamped, accommodating toroidal magnetic cores of different thicknesses.

[0014] Preferably, the guiding component includes a guide block, which is slidably connected to the inner wall of the guide groove and fixedly connected to one side of the slide plate. A movable groove is formed on the inner wall of the guide groove, and a movable block is slidably connected to the inner wall of the movable groove. The movable block is fixedly connected to the guide block. By setting the guide block, the position of the slide plate can be limited, preventing the slide plate from shifting outwards and making the sliding of the slide plate more stable.

[0015] Preferably, the upper surface of the base plate has multiple transverse grooves, which correspond to the slide rails. A crossbar is slidably connected to the inner wall of each groove, and the crossbar is fixedly connected to the lower surface of the positioning plate. A threaded hole is formed on the upper surface of the crossbar, and a threaded rod is threadedly connected to the inner wall of the threaded hole. A vertical rod is fixedly connected to the upper end of the threaded rod, and a knob is fixedly connected to the upper end of the vertical rod. By setting the threaded rod and the threaded hole on the crossbar, the adjusted positioning plate can be fixed, resulting in better stability of the annular magnetic core and preventing it from shifting to one side.

[0016] Preferably, a pressing rod is fitted onto the outer wall of the vertical rod, and an anti-slip pad is fixed to the side of the pressing rod that contacts the base plate. The anti-slip pad increases the friction between the pressing rod and the base plate.

[0017] Preferably, symmetrical retaining rings are fixed to the outer wall of the vertical rod, and the retaining rings are slidably connected to the upper and lower surfaces of the extrusion rod. By setting two retaining rings, the position of the extrusion rod can be limited, allowing the extrusion rod to better detach from the base plate and reducing wear on the anti-slip pad.

[0018] Preferably, a protective pad is fixed to the side of the clamping plate that contacts the toroidal magnetic core. The protective pad protects the toroidal magnetic core. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the present utility model patent;

[0020] Figure 2 This is a cross-sectional structural diagram of the present utility model patent;

[0021] Figure 3 This is a structural diagram of the base plate of this utility model patent;

[0022] Figure 4 This utility model patent Figure 2 Structural diagram at point A;

[0023] Figure 5 This utility model patent Figure 2 Structural diagram at point B.

[0024] The reference numerals in the accompanying drawings of the instruction manual include: 1. Base plate; 2. Positioning plate; 3. Annular magnetic core; 4. Slide rail; 5. Slide rod; 6. First spring; 7. Slider; 8. Movable groove; 9. Second spring; 10. Slide plate; 11. T-slot; 12. T-bar; 13. Clamping plate; 14. Guide groove; 15. Guide block; 16. Moving groove; 17. Moving block; 18. Horizontal groove; 19. Horizontal bar; 20. Threaded hole; 21. Threaded rod; 22. Vertical bar; 23. Knob; 24. Pressing rod; 25. Fixing ring. Detailed Implementation

[0025] 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.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an inductor core positioning fixture includes a base plate 1, a positioning plate 2, and an annular magnetic core 3. The upper surface of the base plate 1 has multiple symmetrical slide rails 4. A slide rod 5 is fixedly connected to the inner wall of each slide rail 4. A first spring 6 is sleeved on the outer wall of each slide rod 5. One end of the first spring 6 is fixedly connected to the slide rail 4. A slider 7 is slidably connected to the outer wall of the slide rod 5. The other end of the first spring 6 is fixedly connected to the slider 7. The lower end of the positioning plate 2 is fixedly connected to the upper surface of the slider 7. The positioning plate 2 is slidably connected to the upper surface of the base plate 1. The outer surface of the annular magnetic core 3 abuts against the inner wall of the positioning plate 2. The inner wall of the positioning plate 2 has symmetrical movable grooves 8. A clamping assembly is installed inside the movable grooves 8. The clamping assembly includes a second spring 9, which is fixedly connected to the inner wall of the movable groove 8. The other end of the second spring 9 is fixedly connected to a slide plate 10. The slide plate 10 is slidably connected to the inner wall of the movable groove 8. A T-shaped groove 11 is provided on the upper surface of the slide plate 10. A T-shaped rod 12 is slidably connected to the inner wall of the T-shaped groove 11. A clamping plate 13 is fixedly connected to one side of the T-shaped rod 12. One side of the clamping plate 13 is in contact with the outer wall of the annular magnetic core 3. A symmetrical guide groove 14 is provided on the inner wall of the movable groove 8. A guide assembly is provided on the inner wall of the guide groove 14. The guide assembly includes a guide block 15. The guide block 15 is slidably connected to the inner wall of the guide groove 14. The guide block 15 is fixedly connected to one side of the slide plate 10. A moving groove 16 is provided on the inner wall of the guide groove 14. A moving block 17 is slidably connected to the inner wall of the moving groove 16. The moving block 17 is fixedly connected to the guide block 15.

[0027] like Figure 2 , Figure 3 and Figure 5 As shown, the upper surface of the base plate 1 has multiple horizontal grooves 18, which correspond to the slide rails 4. A horizontal bar 19 is slidably connected to the inner wall of the horizontal groove 18. The horizontal bar 19 is fixedly connected to the lower surface of the positioning plate 2. A threaded hole 20 is opened on the upper surface of the horizontal bar 19. A threaded rod 21 is threadedly connected to the inner wall of the threaded hole 20. A vertical rod 22 is fixedly connected to the upper end of the threaded rod 21. A knob 23 is fixedly connected to the upper end of the vertical rod 22. A pressing rod 24 is sleeved on the outer wall of the vertical rod 22. An anti-slip pad is fixedly connected to the side of the pressing rod 24 that contacts the base plate 1. Symmetrical fixing rings 25 are fixedly connected to the outer wall of the vertical rod 22. The fixing rings 25 are slidably connected to the upper and lower sides of the pressing rod 24.

[0028] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0029] When clamping and positioning the annular magnetic core 3 is required, first turn the knob 23 to disengage the threaded rod 21 from the threaded hole 20. The threaded rod 21 then moves the pressing rod 24 via the fixing ring 25, causing the pressing rod 24 to disengage from the upper surface of the base plate 1. Next, the annular magnetic core 3 is placed between the positioning plates 2. The outer surface of the annular magnetic core 3 pushes the inclined surface on the positioning plate 2 to move to both sides, causing the positioning plate 2 to move the slider 7 to slide on the outer wall of the slide rod 5. This causes the slider 7 to press the first spring 6. Simultaneously, the two side walls of the annular magnetic core 3 press the inclined surface on the clamping plate 13, causing the clamping plate 13 to press the sliding plate 10 via the T-shaped rod 12. This causes the sliding plate 10 to press the second spring 9. When the slide plate 10 drives the guide block 15 to slide on the inner wall of the guide groove 14, the guide block 15 drives the moving block 17 to slide on the inner wall of the moving groove 16. The moving block 17 limits the guide block 15 and the slide plate 10 to prevent the slide plate 10 from deviating. At this time, the clamping plate 13 clamps and fixes the annular magnetic core 3, and the positioning plate 2 positions the annular magnetic core 3. Then, the knob 23 is turned again to make the threaded rod 21 threadedly connected to the threaded hole 20, so that the extrusion rod 24 drives the anti-slip pad to fit tightly against the base plate 1, limiting the positioning plate 2. The clamping plate 13 can adapt to annular magnetic cores 3 of different thicknesses, and the positioning plate 2 can adapt to annular magnetic cores 3 of different sizes.

[0030] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An inductor core positioning tool comprising a base plate (1), a positioning plate (2) and a ring core (3), characterized in that, The upper surface of the base plate (1) is provided with multiple symmetrical slides (4). The inner wall of the slide (4) is fixedly connected to a slide rod (5). The outer wall of the slide rod (5) is fitted with a first spring (6). One end of the first spring (6) is fixedly connected to the slide (4). The outer wall of the slide rod (5) is slidably connected to a slider (7). The other end of the first spring (6) is fixedly connected to the slider (7). The lower end of the positioning plate (2) is fixedly connected to the upper surface of the slider (7). The positioning plate (2) is slidably connected to the upper surface of the base plate (1). The outer surface of the annular magnetic core (3) abuts against the inner wall of the positioning plate (2). The inner wall of the positioning plate (2) is provided with symmetrical movable grooves (8). The inside of the movable grooves (8) is equipped with clamping components.

2. The magnetic core positioning tool of claim 1, wherein: The clamping assembly includes a second spring (9), which is fixedly connected to the inner wall of the movable groove (8). The other end of the second spring (9) is fixedly connected to a slide plate (10), which is slidably connected to the inner wall of the movable groove (8). A T-shaped groove (11) is provided on the upper surface of the slide plate (10). A T-shaped rod (12) is slidably connected to the inner wall of the T-shaped groove (11). A clamping plate (13) is fixedly connected to one side of the T-shaped rod (12). One side of the clamping plate (13) is in contact with the outer wall of the annular magnetic core (3). A symmetrical guide groove (14) is provided on the inner wall of the movable groove (8). A guide assembly is provided on the inner wall of the guide groove (14).

3. The magnetic core positioning tool of claim 2, wherein: The guide assembly includes a guide block (15), which is slidably connected to the inner wall of the guide groove (14). The guide block (15) is fixedly connected to one side of the slide plate (10). A movable groove (16) is provided on the inner wall of the guide groove (14). A movable block (17) is slidably connected to the inner wall of the movable groove (16). The movable block (17) is fixedly connected to the guide block (15).

4. The magnetic core positioning tool of claim 1, wherein: The upper surface of the base plate (1) is provided with multiple horizontal grooves (18), which correspond to the slide rail (4). A horizontal bar (19) is slidably connected to the inner wall of the horizontal groove (18). The horizontal bar (19) is fixed to the lower surface of the positioning plate (2). A threaded hole (20) is provided on the upper surface of the horizontal bar (19). A threaded rod (21) is threaded to the inner wall of the threaded hole (20). A vertical rod (22) is fixed to the upper end of the threaded rod (21). A knob (23) is fixed to the upper end of the vertical rod (22).

5. The inductor core positioning fixture of claim 4, wherein: The outer wall of the vertical rod (22) is fitted with a compression rod (24), and the side of the compression rod (24) that contacts the bottom plate (1) is fixed with an anti-slip pad.

6. The inductor core positioning fixture according to claim 4, characterized in that: The outer wall of the vertical rod (22) is fixed with symmetrical fixing rings (25), and the fixing rings (25) are slidably connected to the upper and lower surfaces of the extrusion rod (24).

7. The magnetic core positioning tool of claim 2, wherein: A protective pad is fixed to the side of the clamping plate (13) that is in contact with the annular magnetic core (3).

Images