Magnetic core assembly positioning tool

Abstract

The utility model discloses a kind of magnetic core assembly positioning tool, it is related to magnetic core assembly technical field, the magnetic core assembly positioning tool includes substrate, the substrate is set as L-shaped plate, positioning plate is installed on the side plate of the substrate, the inside of the positioning plate is provided with multiple groups of through slots, multiple groups of the through slot are distributed along the center of circle annular on the positioning plate, first sliding rod is installed in the inside of the through slot, first sliding block is slidably connected on the first sliding rod, arc-shaped plate is installed in the side of the first sliding block, through hole is provided on the side plate of the substrate, the center of the through hole of the positioning plate is arranged on the same axis, connecting rod is rotatably connected to the other side of the first sliding block, the present scheme solves the problem that the existing magnetic core assembly positioning tool needs to ensure the roundness and straightness of the magnetic core during the assembly process of the magnetic core, for different diameter magnetic core, different positioning clamps need to be made to meet its installation needs, resulting in the use cost and maintenance cost are relatively high.

Description

Technical Field

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

[0002] A magnetic core is a sintered magnetic metal oxide composed of various iron oxide mixtures. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical core materials. Manganese-zinc ferrite has the characteristics of high permeability and high magnetic flux density, as well as low loss. Nickel-zinc ferrite has extremely high impedance and low permeability of less than a few hundred. Ferrite cores are used in coils and transformers of various electronic devices. Rod-shaped cores need to be positioned during assembly to facilitate precise operation.

[0003] The existing magnetic cores require ensuring their roundness and straightness during assembly. Different positioning fixtures are needed to meet the installation requirements for magnetic cores of different diameters, resulting in relatively high usage and maintenance costs. Therefore, we propose a magnetic core assembly positioning fixture to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a magnetic core assembly and positioning fixture to solve the problem mentioned in the background art that the existing magnetic core assembly and positioning fixtures need to ensure the roundness and straightness of the magnetic core during the assembly process. For magnetic cores of different diameters, different positioning fixtures need to be made to meet their installation requirements, resulting in relatively high usage and maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic core assembly and positioning fixture, comprising a base plate, the base plate being configured as an L-shaped plate, a positioning plate being mounted on the side plate of the base plate, the positioning plate having multiple sets of through slots arranged in a ring around the center of the positioning plate, a first sliding rod being mounted inside the through slot, a first slider being slidably connected to the first sliding rod, an arc-shaped plate being mounted on one side of the first slider, a through hole being provided on the side plate of the base plate, the center of the positioning plate and the through hole being arranged on the same axis, a connecting rod being rotatably connected to the other side of the first slider, and a positioning frame being slidably connected to the bottom plate of the base plate.

[0006] Preferably, an electric push rod is installed on one side of the positioning plate, and a fixed column is installed on the other side of the electric push rod through the through hole. The other end of the connecting rod is hinged to the outer wall of the fixed column, and multiple sets of the connecting rods are distributed in a ring around the center of the outer wall of the fixed column.

[0007] Preferably, fixing plates are installed at both ends on the other side of the first slider, a fixing rod is installed between the two fixing plates, a movable sleeve is sleeved on the outer wall of the fixing rod, and the connecting rod is fixedly connected to the outer wall of the movable sleeve.

[0008] Preferably, a bidirectional threaded rod is installed at one end inside the positioning frame, a rotary motor is installed at the top of the bidirectional threaded rod, and limit plates are threadedly connected to the upper and lower parts of the outer wall of the bidirectional threaded rod, with the two limit plates symmetrically arranged on the bidirectional threaded rod.

[0009] Preferably, an electric slide rail is installed on the bottom plate of the substrate, and a second slider is installed inside the electric slide rail. The second slider is driven by a drive motor, which is fixedly installed on one side of the bottom plate of the substrate. The second slider is fixedly connected to the positioning frame.

[0010] Preferably, a second slide bar is installed at the other end inside the positioning frame, and the limiting plate is slidably connected to the second slide bar.

[0011] Preferably, a first rubber pad is installed on the side of the arc plate near the center, and an arc groove is provided at one end of the opposite face of the two limiting plates, with a second rubber pad installed inside the arc groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model uses multiple sets of arc plates distributed along the ring to simultaneously clamp the outer wall of the magnetic core and apply force evenly from the circumferential direction, which can avoid the deformation of the magnetic core due to uneven force and ensure that the roundness of the magnetic core meets the requirements during the assembly process.

[0013] (2) The rotating motor drives the bidirectional threaded rod to rotate, which in turn drives the two limiting plates to move in opposite directions along the bidirectional threaded rod due to the thread action, so that the limiting plates are in contact with the outer wall of the magnetic core. The two limiting plates are used to assist in positioning the magnetic core to ensure the straightness of the magnetic core.

[0014] (3) By adjusting the length of the electric push rod to control the position of multiple sets of arc plates on the positioning plate, by controlling the distance between two sets of limit plates by rotating the motor, and by controlling the position of the positioning frame by driving the motor, it is possible to adapt to magnetic cores of different diameters and lengths, thereby greatly improving the versatility of the positioning fixture. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the positioning plate of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the overall structure of the positioning plate of this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the overall structure of the positioning frame of this utility model; In the diagram: 1. Base plate; 2. Positioning plate; 3. Through groove; 4. First slide rod; 5. First slider; 6. Arc plate; 7. First rubber pad; 8. Through hole; 9. Electric push rod; 10. Fixed column; 11. Connecting rod; 12. Fixed plate; 13. Fixed rod; 14. Movable sleeve; 15. Electric slide rail; 16. Second slider; 17. Drive motor; 18. Positioning frame; 19. Threaded rod; 20. Rotary motor; 21. Limiting plate; 22. Second slide rod; 23. Arc groove; 24. Second rubber pad. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figure 1-5 This utility model provides an embodiment of a magnetic core assembly and positioning fixture, comprising a base plate 1, which is configured as an L-shaped plate. A positioning plate 2 is mounted on the side plate of the base plate 1. The positioning plate 2 has multiple sets of through slots 3 arranged in a ring around its center. A first sliding rod 4 is mounted inside the through slots 3, and a first slider 5 is slidably connected to the first sliding rod 4. An arc-shaped plate 6 is mounted on one side of the first slider 5. A through hole 8 is provided on the side plate of the base plate 1. The center of the positioning plate 2 and the through hole 8 are aligned on the same axis. A connecting rod 11 is rotatably connected to the other side of the first slider 5. Please refer to [link to relevant documentation]. Figure 2 and Figure 4 Fixed plates 12 are installed at both ends of the first slider 5 on the other side. A fixed rod 13 is installed between the two fixed plates 12. A movable sleeve 14 is sleeved on the outer wall of the fixed rod 13, and a connecting rod 11 is fixedly connected to the outer wall of the movable sleeve 14. Please refer to [link / reference]. Figure 2 An electric push rod 9 is mounted on one side of the positioning plate 2, and a fixing post 10 is mounted on the other side of the electric push rod 9 through a through hole 8. The other end of a connecting rod 11 is hinged to the outer wall of the fixing post 10. Multiple sets of connecting rods 11 are distributed in a circular pattern along the center of the outer wall of the fixing post 10. A positioning frame 18 is slidably connected to the bottom plate of the base plate 1. Please refer to... Figure 1 An electric slide rail 15 is mounted on the bottom plate of substrate 1. A second slider 16 is installed inside the electric slide rail 15. The second slider 16 is driven by a drive motor 17, which is fixedly mounted on one side of the bottom plate of substrate 1. The second slider 16 is fixedly connected to the positioning frame 18. (Please refer to...) Figure 5A bidirectional threaded rod 19 is installed at one end inside the positioning frame 18. A rotary motor 20 is installed at the top of the bidirectional threaded rod 19. Limiting plates 21 are threadedly connected to the upper and lower parts of the outer wall of the bidirectional threaded rod 19. The two limiting plates 21 are symmetrically arranged on the bidirectional threaded rod 19. Before positioning the magnetic core, the drive motor 17 needs to be started. The drive motor 17 drives the second slider 16 to slide along the electric slide rail 15. Through the fixed connection between the second slider 16 and the positioning frame 18, the sliding of the second slider 16 will synchronously drive the positioning frame 18 to move on the bottom plate of the substrate 1. Combined with the length of the magnetic core to be positioned, the positioning frame 18 is finally adjusted to a suitable position to adapt to the assembly requirements of magnetic cores of different lengths. When positioning the magnetic core, one end of the magnetic core is passed through the positioning frame 18 until it is in contact with the surface of the positioning plate 2. The electric push rod 9 is activated. The piston rod of the electric push rod 9 passes through the through hole 8 on the side of the base plate 1, which drives the fixed post 10 at the end to move along the axis of the through hole 8 away from the positioning plate 2. This drives the multiple sets of connecting rods 11 hinged to the outer wall of the fixed post 10 to move away from the positioning plate 2. The other end of the connecting rod 11 is fixedly connected to the movable sleeve 14 of the first slider 5. The movable sleeve 14 is sleeved on the fixed rod 13 between the two fixed plates 12 and can rotate around the fixed rod 13. When the fixed post 10 moves, the connecting rod 11 will push the first slider 5 to slide along the first sliding rod 4 in the through groove 3. The through groove 3 is distributed in a ring around the center of the positioning plate 2. Therefore, the first slider 5 moves closer to the center along the ring direction. The multiple sets of first sliders 5 simultaneously drive the inner arc plate 6 to move closer to the center of the positioning plate 2 until the arc plate 6 is in contact with the outer wall of the magnetic core. Thus, one end of the magnetic core can be positioned by the multiple sets of arc plates 6. Because multiple sets of arc-shaped plates 6 are evenly distributed in a ring, force can be applied to the magnetic core from multiple directions, thus ensuring the roundness of the magnetic core. By adjusting the extension and retraction of the electric push rod 9, the moving distance of the fixed column 10 can be controlled, thereby changing the diameter of the circle formed by the arc-shaped plates 6 to accommodate magnetic cores of different diameters. If the length of the magnetic core is long, positioning only one end of the magnetic core by the arc-shaped plates 6 cannot keep the magnetic core stable, and the positioning effect of the magnetic core is poor. At this time, by activating the rotary motor 20 at the top of the positioning frame 18, the rotary motor 20 drives the bidirectional threaded rod 19 to rotate. The upper and lower sections of the outer wall of the bidirectional threaded rod 19 have opposite thread directions, which can drive the two limiting plates 21 to move towards each other along the bidirectional threaded rod 19 due to the thread action, so that the limiting plates 21 fit against the outer wall of the magnetic core. The two limiting plates 21 provide auxiliary positioning for the magnetic core to ensure the straightness of the magnetic core.

[0018] Please see Figure 5 A second slide rod 22 is installed at the other end inside the positioning frame 18, and the limiting plate 21 is slidably connected to the second slide rod 22. The second slide rod 22 can provide guidance for the limiting plate 21 and restrict the rotation of the limiting plate 21 around the bidirectional threaded rod 19, thereby ensuring the smooth movement of the limiting plate 21.

[0019] Please see Figure 3 and Figure 5 A first rubber pad 7 is installed on the side of the arc-shaped plate 6 near the center. An arc-shaped groove 23 is provided at one end of the opposite face of the two limiting plates 21, and a second rubber pad 24 is installed inside the arc-shaped groove 23. The arc-shaped plate 6 and the arc-shaped groove 23 can be set to fit tightly against the outer wall of the magnetic core, improving the positioning accuracy of the magnetic core. The first rubber pad 7 and the second rubber pad 24 can provide protection for the surface of the magnetic core, preventing the surface of the magnetic core from being pinched or scratched.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A magnetic core assembly and positioning fixture, comprising a substrate (1), characterized in that: The substrate (1) is configured as an L-shaped plate. A positioning plate (2) is installed on the side plate of the substrate (1). The positioning plate (2) has multiple sets of through slots (3) inside. The multiple sets of through slots (3) are distributed in a ring along the center on the positioning plate (2). A first slide rod (4) is installed inside the through slot (3). A first slider (5) is slidably connected to the first slide rod (4). An arc plate (6) is installed on one side of the first slider (5). A through hole (8) is provided on the side plate of the substrate (1). The center of the positioning plate (2) and the through hole (8) are set on the same axis. A connecting rod (11) is rotatably connected to the other side of the first slider (5). A positioning frame (18) is slidably connected to the bottom plate of the substrate (1).

2. The magnetic core assembly and positioning fixture according to claim 1, characterized in that: An electric push rod (9) is installed on one side of the positioning plate (2), and a fixed column (10) is installed on the other side of the electric push rod (9) through the through hole (8). The other end of the connecting rod (11) is hinged to the outer wall of the fixed column (10), and multiple sets of the connecting rods (11) are distributed in a circular pattern along the center of the outer wall of the fixed column (10).

3. The magnetic core assembly and positioning fixture according to claim 1, characterized in that: Fixing plates (12) are installed at both ends on the other side of the first slider (5). A fixing rod (13) is installed between the two fixing plates (12). A movable sleeve (14) is sleeved on the outer wall of the fixing rod (13). The connecting rod (11) is fixedly connected to the outer wall of the movable sleeve (14).

4. The magnetic core assembly and positioning fixture according to claim 1, characterized in that: A bidirectional threaded rod (19) is installed at one end inside the positioning frame (18). A rotary motor (20) is installed at the top of the bidirectional threaded rod (19). Limiting plates (21) are threadedly connected to the upper and lower parts of the outer wall of the bidirectional threaded rod (19). The two limiting plates (21) are symmetrically arranged on the bidirectional threaded rod (19).

5. The magnetic core assembly and positioning fixture according to claim 1, characterized in that: An electric slide rail (15) is installed on the bottom plate of the substrate (1). A second slider (16) is installed inside the electric slide rail (15). The second slider (16) is driven by a drive motor (17). The drive motor (17) is fixedly installed on one side of the bottom plate of the substrate (1). The second slider (16) is fixedly connected to the positioning frame (18).

6. The magnetic core assembly and positioning fixture according to claim 4, characterized in that: A second slide bar (22) is installed at the other end of the positioning frame (18), and the limiting plate (21) is slidably connected to the second slide bar (22).

7. A magnetic core assembly and positioning fixture according to claim 4, characterized in that: The arc plate (6) is equipped with a first rubber pad (7) on the side near the center, and an arc groove (23) is provided at one end of the opposite face of the two limiting plates (21), and a second rubber pad (24) is installed inside the arc groove (23).

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