Adjustable inductor forming tool and forming method

By designing an adjustable inductor forming fixture, and utilizing limiting components, support components, and clamping components, the problem of poor adaptability in inductor forming was solved, and efficient and precise inductor forming was achieved.

CN120854147APending Publication Date: 2025-10-28SUZHOU LONGYI ELECTRONICS SCI & TECH
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Patent Information

Application Number
CN202511231862.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-01
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

Existing inductor molding fixtures cannot accommodate the size differences of different inductor coil models, resulting in increased molding costs and low work efficiency.

Method used

An adjustable inductor forming fixture was designed, including an adjustable limiting component, a supporting component, and a clamping component. Through driving devices such as servo motors, cylinders, and electric telescopic rods, the fixture can be used to position, limit, and bend the inductor coil.

Benefits of technology

It improves the precision and efficiency of inductor molding, adapts to inductor coils of various sizes, and reduces additional equipment procurement and preparation time.

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Abstract

The invention discloses an adjustable inductor forming tool and a forming method, and relates to the field of inductor forming tools.The adjustable inductor forming tool comprises a tool body, one end of the outer wall of the tool body is movably connected with a limiting assembly, a linkage plate is movably connected into an inner cavity of the limiting assembly, an inductor coil groove is formed in the outer wall of the tool body, and the limiting assembly is movably connected with the linkage plate; pin grooves are formed in the two sides of the top of the outer wall of the tool body, a supporting assembly is installed in an inner cavity of the inductor coil groove, arc-shaped adjusting plates are symmetrically and movably connected to the two sides of an inner cavity of the supporting assembly, clamping assemblies are symmetrically and movably connected to the two sides of the top of the tool body, and translation air cylinders are symmetrically installed on the two sides of the top of the tool body; lifting air cylinders are symmetrically installed on the two sides of the outer wall of the tool body. According to the adjustable inductor forming tool and the forming method, the forming efficiency and precision of inductor coil electrodes can be improved through the tool, the adaptability is high, and the electrodes and the coils can be installed and formed according to the sizes of the electrodes and the coils.
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Description

Technical Field

[0001] This invention relates to the field of inductor molding fixtures, and particularly to an adjustable inductor molding fixture and molding method. Background Technology

[0002] An inductor, also known as a choke, reactor, or inductor coil, is a two-terminal circuit element that converts electrical energy into magnetic energy and stores it. It generates an electromotive force in response to changes in the current passing through it, thereby resisting changes in the current.

[0003] Different models of inductor coils have different sizes. When molding the electrodes of inductor coils, the existing molding tooling cannot be adapted to their size, which requires the purchase of additional equipment, increasing the molding cost. The procurement and preparation of tooling also take time, which affects the overall work efficiency.

[0004] Therefore, it is necessary to propose an adjustable inductor forming fixture and forming method to solve the above problems. Summary of the Invention

[0005] The main objective of this invention is to provide an adjustable inductor forming fixture and forming method, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An adjustable inductor forming fixture and forming method are disclosed, comprising a fixture body, wherein a limiting component is movably connected to one end of the outer wall of the fixture body, and a linkage plate is movably connected to the inner cavity of the limiting component. The outer wall of the tooling body is provided with an inductor coil slot, and both sides of the top of the outer wall of the tooling body are provided with pin slots. A support assembly is installed in the inner cavity of the inductor coil slot, and arc-shaped adjustment plates are symmetrically and movably connected to both sides of the inner cavity of the support assembly. The tooling body has clamping assemblies symmetrically and movably connected to both sides of its top, translation cylinders symmetrically installed on both sides of its top, and lifting cylinders symmetrically installed on both sides of its outer wall.

[0007] Preferably, one end of the outer wall of the tooling body is provided with a movable groove, there are four movable grooves, three of the movable grooves are symmetrically fixedly connected with first guide rods in their inner cavities, one movable groove is rotatably connected with a lead screw in its inner cavity, and a servo motor is installed on the outer wall of the tooling body, the servo motor is connected to the lead screw through a first rotating shaft.

[0008] Preferably, the limiting components are movably connected to the inner cavities of the two movable slots on both sides near the tooling body, and the linkage plates are movably connected to the inner cavities of the other two movable slots on both sides near the tooling body. Both sides of the limiting components and one side of the linkage plates are sleeved on the outer wall of the first guide rod, and the other side of the linkage plate is threaded to the lead screw. Dustproof elastic bands are symmetrically installed at both ends of the inner cavity of the movable slots, and the other end of the dustproof elastic bands is connected to the linkage plate and the limiting components.

[0009] Preferably, the pin slot communicates with the inner cavity of the inductor coil slot, and a heat dissipation mesh is installed at one end of the support assembly.

[0010] Preferably, a drive motor is installed in the support assembly, the heat dissipation mesh is used to dissipate heat from the drive motor, one end of the drive motor is connected to a gear through a second rotating shaft, the top and bottom of the gear are meshed with racks, a limit block is installed on the outer wall of the rack, one end of the rack is connected to an arc-shaped adjusting plate, and the rack moves laterally in the inner cavity of the support assembly.

[0011] Preferably, the tooling body has symmetrically provided limiting grooves on both sides, a second guide rod is installed in the inner cavity of the limiting groove, a guide block is installed on the side of the translation cylinder, the bottom of the guide block is movably connected in the inner cavity of the limiting groove and sleeved on the outer wall of the second guide rod, and the top of the lifting cylinder is installed on the outer wall of the translation cylinder.

[0012] Preferably, one end of the clamping assembly is provided with a clearance groove, the translation cylinder is connected to the clamping assembly, an electric telescopic rod is installed in the inner cavity of the clamping assembly, the electric telescopic rod is connected to the slider, the slider is trapezoidal, and fixed shafts are symmetrically rotatably connected to both sides of the inner cavity of the clamping assembly. A contact block is installed at one end of the outer wall of the fixed shaft, and a claw is installed at the other end of the outer wall of the fixed shaft.

[0013] Preferably, rubber pads and springs are symmetrically installed on opposite sides of the other two claws, and arc-shaped surfaces are opened on opposite sides of the contact blocks on adjacent sides, with the springs located in the inner cavity of the clamping assembly.

[0014] Preferably, the slider has two sides in contact with the arc-shaped surface, and the claws are located on both sides of the pin slot.

[0015] A forming method for an adjustable inductor forming fixture includes the following steps: S1: The inductor coil to be formed is sleeved on the outer wall of the support assembly. At this time, the inductor coil is located in the inner cavity of the inductor coil slot. The arc-shaped adjustment plate is adjusted according to the diameter of the inductor coil. The drive motor is started to drive the gear to rotate. The gear meshes with the rack, thereby driving the arc-shaped adjustment plate to move. At this time, the arc-shaped adjustment plate can fit against both sides of the inner cavity of the inductor coil. Based on this, the inductor coil is initially positioned. S2: Place the two electrodes of the inductor coil in the inner cavity of the two pin slots, start the servo motor, drive the lead screw to rotate, so that one side of the linkage plate can be threaded with the lead screw. At this time, the linkage plate can unfold from the inner cavity of the limit component and move upward. As the linkage plate moves upward, it drives the limit component to move upward until the limit component and the linkage plate block the inductor coil at the inductor coil slot. S3: Start the lifting cylinder, and use the translation cylinder to adjust the height of the clamping assembly to match the electrode. Start the translation cylinder to move the clamping assembly, and at the same time start the electric telescopic rod to move the slider. After the slider contacts the contact block through the arc surface, it will drive the contact block and the claw to rotate around the fixed axis. At this time, the electrode can be clamped at both ends by the rubber pad. When the translation cylinder continues to move the clamping assembly, the electrode can be bent through the outer wall of the clamping assembly until it is formed. S4: After molding is completed, reset the clamping assembly and the electric telescopic rod. At this time, the spring can simultaneously reset the contact block and the claw.

[0016] Compared with the prior art, the present invention provides an adjustable inductor forming fixture and forming method, which has the following beneficial effects: The adjustable inductor forming fixture and forming method uses a movable linkage plate, which can drive the limiting component to move after it moves. During the subsequent forming of the coil, the external part can be limited to prevent it from moving during forming. The dustproof elastic band can block the movable slot at all times when the linkage plate and the limiting component move, which can effectively prevent foreign objects from entering the inner cavity of the movable slot. This adjustable inductor forming fixture and method, through the set support components, can install the inductor coil. With the help of the adjustable arc-shaped adjustment plate, it can position the coil according to its size. During the forming process, it can limit the coil and improve the forming accuracy. The adjustable inductor forming fixture and forming method can drive the clamping assembly to move up and down and translate by activating the set lifting cylinder and guide block. The lifting can adjust the jaws according to the position of the coil electrode, and the translation can drive the clamping assembly to bend the electrode. This adjustable inductor forming fixture and method uses a movable slider. After the slider contacts the arc-shaped surface of the contact block, it drives the jaws to rotate, allowing the jaws to clamp the electrode through the rubber pad. With the help of the movable clamping assembly, bending can be performed. The clamped electrode can avoid positional displacement during bending and forming, and it can be adapted to electrodes of various sizes. Through the spring, when the slider returns to its original position, it can drive the jaws to return to their original position. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the tooling body of the present invention; Figure 3 This is a schematic diagram of the arc-shaped adjustment plate of the present invention; Figure 4 This is a schematic diagram of the translation cylinder of the present invention; Figure 5 This is a schematic diagram of the clamping component of the present invention.

[0018] In the diagram: 1. Tooling body; 2. Dustproof elastic band; 3. Servo motor; 4. Movable slot; 5. First guide rod; 6. Lead screw; 7. Limiting assembly; 8. Linkage plate; 9. Inductor coil slot; 10. Pin slot; 11. Support assembly; 12. Heat dissipation mesh; 13. Arc-shaped adjustment plate; 14. Rack; 15. Gear; 16. Drive motor; 17. Limiting block; 18. Translation cylinder; 19. Limiting slot; 20. Second guide rod; 21. Lifting cylinder; 22. Guide block; 23. Clamping assembly; 24. Clearance slot; 25. Slider; 26. Contact block; 27. Fixed shaft; 28. Claw; 29. ​​Rubber pad; 30. Spring; 31. Arc-shaped surface. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example

[0020] like Figure 1 , Figure 2As shown, an adjustable inductor forming fixture includes a fixture body 1. One end of the outer wall of the fixture body 1 is movably connected to a limiting component 7. A linkage plate 8 is movably connected in the inner cavity of the limiting component 7. One end of the outer wall of the fixture body 1 has four movable slots 4. A first guide rod 5 is symmetrically fixedly connected in the inner cavity of three movable slots 4. A lead screw 6 is rotatably connected in the inner cavity of one movable slot 4. A servo motor 3 is installed on the outer wall of the fixture body 1. The servo motor 3 is connected to the lead screw 6 through a first rotating shaft. The limiting component 7 is movably connected in the inner cavity of two movable slots 4 near the two sides of the fixture body 1. The linkage plate 8 is movably connected in the inner cavity of the other two movable slots 4 near the two sides of the fixture body 1. Both sides of the limiting component 7 and one side of the linkage plate 8 are sleeved on the outer wall of the first guide rod 5. The other side of the linkage plate 8 is threadedly connected to the lead screw 6. Dustproof elastic bands 2 are symmetrically installed at both ends of the inner cavity of the movable slots 4. The other end of the dustproof elastic bands 2 is connected to the linkage plate 8 and the limiting component 7. The movable linkage plate 8 can move the limiting component 7 after it moves. During the subsequent forming of the coil, it can limit the external movement to prevent it from moving during forming. The dustproof elastic band 2 can block the movable groove 4 at all times when the linkage plate 8 and the limiting component 7 move, which can effectively prevent foreign objects from entering the inner cavity of the movable groove 4. Example

[0021] like Figures 1-3 As shown, an adjustable inductor forming fixture has an inductor coil groove 9 on the outer wall of the fixture body 1, and pin grooves 10 on both sides of the top of the outer wall of the fixture body 1. A support assembly 11 is installed in the inner cavity of the inductor coil groove 9. Arc-shaped adjustment plates 13 are symmetrically and movably connected to both sides of the inner cavity of the support assembly 11. The pin grooves 10 communicate with the inner cavity of the inductor coil groove 9. A heat dissipation mesh 12 is installed at one end of the support assembly 11. A drive motor 16 is installed in the support assembly 11. The heat dissipation mesh 12 is used to dissipate heat from the drive motor 16. A gear 15 is connected to one end of the drive motor 16 through a second rotating shaft. A rack 14 meshes with the top and bottom of the gear 15. A limit block 17 is installed on the outer wall of the rack 14. One end of the rack 14 is connected to the arc-shaped adjustment plate 13. The rack 14 moves laterally in the inner cavity of the support assembly 11. The inductor coil can be installed using the support component 11. With the adjustable arc-shaped adjustment plate 13, the coil can be positioned according to its size. During the molding process, the coil can be limited, thereby improving the molding accuracy. Example

[0022] like Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, an adjustable inductor forming fixture has clamping assemblies 23 symmetrically and movably connected to both sides of the top of the fixture body 1. Translation cylinders 18 are symmetrically installed on both sides of the top of the fixture body 1. Lifting cylinders 21 are symmetrically installed on both sides of the outer wall of the fixture body 1. Limiting grooves 19 are symmetrically formed on both sides of the fixture body 1. A second guide rod 20 is installed in the inner cavity of the limiting groove 19. A guide block 22 is installed on the side of the translation cylinder 18. The bottom of the guide block 22 is movably connected to the inner cavity of the limiting groove 19 and sleeved on the outer wall of the second guide rod 20. The top of the lifting cylinder 21 is installed on the outer wall of the translation cylinder 18. A clearance groove 24 is formed at one end of the clamping assembly 23. The translation cylinder 18 is connected to the clamping assembly 23. An electric telescopic rod is installed in the inner cavity of the clamping assembly 23. The electric telescopic rod is connected to the slider 25. The slider 25 is trapezoidal. Fixed shafts 27 are symmetrically rotatably connected to both sides of the inner cavity of the clamping assembly 23. A contact block 26 is installed at one end of the outer wall of the fixed shaft 27. A claw 28 is installed at the other end of the outer wall of the fixed shaft 27. Rubber pads 29 and springs 30 are symmetrically installed on opposite sides of the other two claws 28. An arc surface 31 is opened on the opposite side of the contact block 26 on the adjacent side. The spring 30 is located in the inner cavity of the clamping assembly 23. The two sides of the slider 25 are in contact with the arc surface 31. The claws 28 are located on both sides of the pin slot 10. By activating the lifting cylinder 21 and guide block 22, the clamping assembly 23 can be lifted, moved, and translated. The lifting can adjust the jaws 28 according to the position of the coil electrode, and the translation can cause the clamping assembly 23 to bend the electrode. After the movable slider 25 contacts the arc surface 31 of the contact block 26, it can drive the jaws 28 to rotate, so that the jaws 28 can clamp the electrode through the rubber pad 29. With the cooperation of the movable clamping assembly 23, the bending work can be performed. The clamped electrode can avoid positional displacement during bending and can be adapted to electrodes of various sizes. Through the spring 30, when the slider 25 is reset, it can drive the jaws 28 to reset.

[0023] A forming method for an adjustable inductor forming fixture includes the following steps: S1: The inductor coil to be formed is sleeved on the outer wall of the support assembly 11. At this time, the inductor coil is located in the inner cavity of the inductor coil slot 9. The arc-shaped adjustment plate 13 is adjusted according to the diameter of the inductor coil. The drive motor 16 is started, which drives the gear 15 to rotate. The gear 15 meshes with the rack 14, thereby driving the arc-shaped adjustment plate 13 to move. At this time, the arc-shaped adjustment plate 13 can fit against both sides of the inner cavity of the inductor coil. Based on this, the inductor coil is initially positioned. S2: Place the two electrodes of the inductor coil in the inner cavity of the two pin slots 10, start the servo motor 3, drive the lead screw 6 to rotate, so that one side of the linkage plate 8 can be threadedly connected to the lead screw 6. At this time, the linkage plate 8 can unfold from the inner cavity of the limiting component 7 and move upward. While the linkage plate 8 moves upward, it drives the limiting component 7 to move upward until the limiting component 7 and the linkage plate 8 block the inductor coil at the inductor coil slot 9. S3: Start the lifting cylinder 21, and drive the clamping component 23 to adjust its height through the translation cylinder 18 to match the electrode. Start the translation cylinder 18 to move the clamping component 23. At the same time, start the electric telescopic rod to move the slider 25. After the slider 25 contacts the contact block 26 through the arc surface 31, it drives the contact block 26 and the claw 28 to rotate around the fixed axis 27. At this time, the electrode can be clamped at both ends by the rubber pad 29. When the translation cylinder 18 continues to drive the clamping component 23 to move, the electrode can be bent through the outer wall of the clamping component 23 until it is formed. S4: After molding is completed, reset the clamping assembly 23 and the electric telescopic rod. At this time, the spring 30 can simultaneously reset the contact block 26 and the claw 28.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable inductor forming fixture, comprising a fixture body (1), characterized in that: One end of the outer wall of the tooling body (1) is movably connected to a limiting component (7), and a linkage plate (8) is movably connected in the inner cavity of the limiting component (7). The outer wall of the tooling body (1) is provided with an inductor coil groove (9), and both sides of the top of the outer wall of the tooling body (1) are provided with pin grooves (10). A support assembly (11) is installed in the inner cavity of the inductor coil groove (9), and an arc-shaped adjustment plate (13) is symmetrically and movably connected to both sides of the inner cavity of the support assembly (11). The tooling body (1) has clamping components (23) symmetrically connected to both sides of its top, translation cylinders (18) symmetrically installed on both sides of its top, and lifting cylinders (21) symmetrically installed on both sides of its outer wall.

2. The adjustable inductor forming fixture according to claim 1, characterized in that: The tooling body (1) has a movable groove (4) at one end of its outer wall. There are four movable grooves (4). Three of the movable grooves (4) are symmetrically fixedly connected to a first guide rod (5). One movable groove (4) is rotatably connected to a lead screw (6) in its inner cavity. A servo motor (3) is installed on the outer wall of the tooling body (1). The servo motor (3) is connected to the lead screw (6) through a first rotating shaft.

3. The adjustable inductor forming fixture according to claim 2, characterized in that: The limiting component (7) is movably connected to the inner cavities of the two movable slots (4) on both sides near the tooling body (1). The linkage plate (8) is movably connected to the inner cavities of the other two movable slots (4) on both sides near the tooling body (1). The two sides of the limiting component (7) and one side of the linkage plate (8) are both sleeved on the outer wall of the first guide rod (5). The other side of the linkage plate (8) is threadedly connected to the lead screw (6). Dustproof elastic bands (2) are symmetrically installed at both ends of the inner cavity of the movable slot (4). The other end of the dustproof elastic band (2) is connected to the linkage plate (8) and the limiting component (7).

4. The adjustable inductor forming fixture according to claim 1, characterized in that: The pin slot (10) communicates with the inner cavity of the inductor coil slot (9), and a heat dissipation mesh (12) is installed at one end of the support assembly (11).

5. The adjustable inductor forming fixture according to claim 4, characterized in that: The support assembly (11) is equipped with a drive motor (16), and the heat dissipation mesh (12) is used to dissipate heat from the drive motor (16). One end of the drive motor (16) is connected to a gear (15) through a second rotating shaft. The top and bottom of the gear (15) are meshed with racks (14). Limit blocks (17) are installed on the outer wall of the rack (14). One end of the rack (14) is connected to an arc-shaped adjustment plate (13). The rack (14) moves laterally in the inner cavity of the support assembly (11).

6. The adjustable inductor forming fixture according to claim 1, characterized in that: The tooling body (1) has symmetrically opened limit grooves (19) on both sides. A second guide rod (20) is installed in the inner cavity of the limit groove (19). A guide block (22) is installed on the side of the translation cylinder (18). The bottom of the guide block (22) is movably connected in the inner cavity of the limit groove (19) and sleeved on the outer wall of the second guide rod (20). The top of the lifting cylinder (21) is installed on the outer wall of the translation cylinder (18).

7. The adjustable inductor forming fixture according to claim 4, characterized in that: One end of the clamping assembly (23) is provided with a clearance groove (24). The translation cylinder (18) is connected to the clamping assembly (23). An electric telescopic rod is installed in the inner cavity of the clamping assembly (23). The electric telescopic rod is connected to the slider (25). The slider (25) is trapezoidal. Fixed shafts (27) are symmetrically rotated on both sides of the inner cavity of the clamping assembly (23). A contact block (26) is installed at one end of the outer wall of the fixed shaft (27). A claw (28) is installed at the other end of the outer wall of the fixed shaft (27).

8. The adjustable inductor forming fixture according to claim 7, characterized in that: Rubber pads (29) and springs (30) are symmetrically installed on opposite sides of the other two claws (28). An arc-shaped surface (31) is opened on the opposite side of the contact block (26) on the adjacent side. The spring (30) is located in the inner cavity of the clamping assembly (23).

9. The adjustable inductor forming fixture according to claim 8, characterized in that: The slider (25) is in contact with the arc surface (31) on both sides, and the claws (28) are located on both sides of the pin slot (10).

10. A molding method for an adjustable inductor molding fixture, employing an adjustable inductor molding fixture as described in any one of claims 1-9, characterized in that: The following steps are included: S1: The inductor coil to be formed is sleeved on the outer wall of the support assembly (11). At this time, the inductor coil is located in the inner cavity of the inductor coil slot (9). The arc adjustment plate (13) is adjusted according to the diameter of the inductor coil. The drive motor (16) is started, which drives the gear (15) to rotate. The gear (15) meshes with the rack (14), thereby driving the arc adjustment plate (13) to move. At this time, the arc adjustment plate (13) can fit against both sides of the inner cavity of the inductor coil. Based on this, the inductor coil is initially positioned. S2: Place the two electrodes of the inductor coil in the inner cavity of the two pin slots (10), start the servo motor (3), drive the lead screw (6) to rotate, so that one side of the linkage plate (8) can be threadedly connected to the lead screw (6). At this time, the linkage plate (8) can unfold from the inner cavity of the limiting component (7) and move upward. While the linkage plate (8) moves upward, it drives the limiting component (7) to move upward until the limiting component (7) and the linkage plate (8) block the inductor coil at the inductor coil slot (9). S3: Start the lifting cylinder (21), and use the translation cylinder (18) to drive the clamping assembly (23) to adjust its height to match the electrode. Start the translation cylinder (18) to drive the clamping assembly (23) to move. At the same time, start the electric telescopic rod to drive the slider (25) to move. After the slider (25) contacts the contact block (26) through the arc surface (31), it drives the contact block (26) and the claw (28) to rotate around the fixed axis (27). At this time, the electrode can be clamped at both ends by the rubber pad (29). When the translation cylinder (18) continues to drive the clamping assembly (23) to move, the electrode can be bent through the outer wall of the clamping assembly (23) until it is formed. S4: After molding is completed, reset the clamping assembly (23) and the electric telescopic rod. At this time, the spring (30) can simultaneously reset the contact block (26) and the claw (28).