Lead correcting and bending device for inductor

By designing a lead wire straightening and bending device for inductors, and using straightening and bending components and support components to straighten and bend the leads, the problem of high lead wire bending defect rate is solved, the accuracy and consistency of lead wire bending are achieved, and the inductor defect rate is reduced.

CN224195796UActive Publication Date: 2026-05-05COILTEC TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
COILTEC TECH (SUZHOU) CO LTD
Filing Date
2025-05-19
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing inductor lead bending structure has a high failure rate, and the bent leads are prone to springback, resulting in a high inductor failure rate.

Method used

An inductor lead straightening and bending device is designed, including an upper module, a lower module, a coil carrier track, a straightening and bending component, and a support component. The drive component synchronously clamps the coil and lead, and the straightening and bending component and the support component are used to straighten and bend the lead, ensuring that both sides of the lead are stressed at the same time and avoiding rebound.

Benefits of technology

It effectively reduces the rebound phenomenon after lead bending, improves the accuracy and consistency of lead bending, and increases the yield of inductor products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of inductor manufacturing, in particular to a lead correcting and bending device for an inductor. The lower module is arranged below the upper module through a linear bearing; the coil carrier track is arranged between the upper module and the lower module through the linear bearing; the correcting and bending assembly is vertically arranged on the lower end face of the upper module; the supporting assembly is vertically arranged on the upper end face of the lower module; and the two groups of driving components respectively drive the upper module and the lower module to slide towards the coil carrier track along the linear bearing. The device is convenient for fixing a coil to avoid the deviation of a lead wire, and the angle of the lead wire is corrected to avoid the deviation of a subsequent bending position; according to the device, the two sides of the lead are stressed at the same time through clamping of the correcting and bending assembly and the supporting assembly, and rebounding of the lead after bending is avoided.
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Description

Technical Field

[0001] This utility model belongs to the field of inductor manufacturing technology, specifically relating to an inductor lead wire straightening and bending device. Background Technology

[0002] Inductors are one of the most common components in electronic devices and also one of the important components in circuits. They are widely used in various circuits to achieve the functions of filtering, energy storage, matching, and resonance.

[0003] Generally, most common inductors have a combined structure, consisting of a coil, a magnetic core, and a housing. Molded inductors generate electrical properties by embedding the coil in a compressed and hardened soft magnetic composite material. Inside the inductor body, the two ends of the coil are spot-welded to the lead frame, while the lead frame exposed outside the body can be used as electrodes for soldering to a printed circuit board. The electrodes need to be bent and then molded with magnetic powder.

[0004] However, in the existing technology, the bending structure has a high defect rate, and the bent lead part is prone to rebound, which leads to a high defect rate of inductors. Therefore, an inductor lead bending correction device is needed to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an inductor lead straightening and bending device to address the existing market problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An inductor lead straightening and bending device, comprising:

[0008] Upper module;

[0009] The lower module is located below the upper module via a linear bearing;

[0010] The coil carrier track is located between the upper module and the lower module via the linear bearing;

[0011] A straightening and bending assembly is vertically disposed on the lower end face of the upper module;

[0012] A support assembly vertically disposed on the upper surface of the lower module;

[0013] Two sets of drive components respectively drive the upper module and the lower module to slide along the linear bearing toward the track of the coil carrier.

[0014] Through the above technical solution, the upper module and the lower module synchronously clamp the coil and lead wire on the coil carrier track through the drive component, the support component supports the lead wire part, and the correction and bending component first corrects the angle of the lead wire, and then bends the lead wire away from the coil end. This device is convenient for fixing the coil to avoid lead wire deviation, and corrects the lead wire angle to avoid subsequent bending position deviation. This device makes the lead wire bear force on both sides at the same time through the clamping of the correction and bending component and the support component, which also helps to prevent the lead wire from rebounding after bending.

[0015] As a preferred embodiment of this utility model, the straightening and bending assembly includes a fixing plate disposed on the lower end face of the upper module, a pressure block disposed on the lower end face of the fixing plate for fixing the coil, a straightening rod for straightening the angle of the lead wire portion, and a bending plate for bending the lead wire portion.

[0016] As a preferred embodiment of this utility model, the pressure block, the straightening rod, and the bending plate are arranged in several sets of alternating and equidistant configurations. The pressure block is circular, the lower end face of the straightening rod is provided with an inverted V-shaped straightening groove, the bending plate is rectangular, and the straightening groove is adapted to the lead wire of the lead wire portion.

[0017] Through the above technical solution, the circular pressure block is used to press and fix the coil, and then the straightening rod corrects the angle of the lead wire through the V-groove to avoid the angle deviation of the lead wire. The height of the bending plate is greater than the height of the straightening rod, so as to facilitate the downward bending of the lead wire.

[0018] As a preferred embodiment of this utility model, each set of the correction rods is provided with two corresponding positions of the two leads respectively located on the lead wire section.

[0019] With the above technical solution, there are two leads respectively located on both sides of the coil, and each group of the corrective rods is also provided with two, which facilitates bending the two leads of the same coil and makes it easy to keep the bending angle consistent.

[0020] As a preferred embodiment of this utility model, the support assembly includes a support base disposed on the lower module, and a plurality of support rods disposed on the support base. The support rods are used to support the lead wire portion, and the support rods cooperate with the bending plate to bend the lead wire portion.

[0021] Through the above technical solution, the support rod supports the lead wire. When bending, the support rod and the bending plate work together to ensure that both sides of the lead wire are stressed at the same time, which avoids the lead wire rebounding after bending and also avoids inaccurate bending angle when only the bending plate is stressed on the lead wire.

[0022] As a preferred embodiment of this utility model, the two sides of the coil carrier track are fixedly connected to the linear bearing through connecting blocks, and the coil carrier track is provided with a placement groove for placing the coil module seat for placing the semi-finished coil.

[0023] As a preferred embodiment of this utility model, the coil module base is provided with a placement block and a placement plate. Several placement blocks and placement plates are provided and are arranged alternately and at equal intervals. The placement blocks are adapted to the coil, and the placement plate is provided with two V-shaped grooves for placing the lead wire.

[0024] Through the above technical solution, the diameter of the placement block is matched with that of the coil, the upper diameter of the placement block is smaller than that of the lower diameter of the placement block, the cross-section of the placement block is trapezoidal, and the V-shaped groove is used to hold the lead wire in place.

[0025] As a preferred embodiment of this utility model, the fixing plate is provided with a positioning pin, which is adapted to the positioning hole of the coil module seat.

[0026] Through the above technical solution, the positioning pin facilitates the quick engagement and connection between the fixing plate and the coil module seat, and also has a limiting function to prevent the position from shifting when the fixing plate and the coil module seat are engaged. The cross-section of the positioning pin can be any one of the following: circle, rectangle, triangle, trapezoid, polygon, etc.

[0027] As a preferred embodiment of this utility model, the drive component is a cylinder.

[0028] As a preferred embodiment of this utility model, one set of the drive components includes at least two cylinders, and the two cylinders are arranged diagonally, and the two sets of drive components are arranged diagonally.

[0029] With the above technical solution, the two sets of drive components are arranged in an object-oriented manner, and the four cylinders are located on the four sides or four corners, which makes it easier for the upper and lower modules to slide more stably, and also helps to improve the accuracy and stability of the sliding distance, improve the accuracy of bending, and thus improve the precision of the product.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0031] The upper and lower modules synchronously clamp the coil and lead wire on the coil carrier track via the drive component. The support component supports the lead wire section, and the correction and bending component first corrects the angle of the lead wire, and then bends the lead wire at the end away from the coil. This device is convenient for fixing the coil to prevent the lead wire from shifting, and corrects the angle of the lead wire to prevent the subsequent bending position from shifting. This device uses the correction and bending component and the support component to clamp the lead wire so that both sides of the lead wire are subjected to force at the same time, which also helps to prevent the lead wire from rebounding after bending.

[0032] The circular pressure block is used to press and fix the coil, and then the straightening rod corrects the angle of the lead wire through the V-groove to prevent the angle of the lead wire from deviating. The height of the bending plate is greater than the height of the straightening rod, so as to facilitate bending the lead wire downward.

[0033] The support rod supports the lead wire. When bending, the support rod and the bending plate work together to ensure that both sides of the lead wire are stressed at the same time, which prevents the lead wire from rebounding after bending and also prevents inaccurate bending angle when only the bending plate is stressed. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the lead wire straightening and bending device of this utility model;

[0036] Figure 2 For the present utility model Figure 1 A structural diagram;

[0037] Figure 3 For the present utility model Figure 1 A schematic diagram of the upper module structure;

[0038] Figure 4 For the present utility model Figure 1 A schematic diagram of the coil module base structure;

[0039] Figure 5 For the present utility model Figure 3 A schematic diagram of structure A in the diagram. Detailed Implementation

[0040] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0041] The present invention provides the following embodiments:

[0042] An inductor lead straightening and bending device, comprising:

[0043] The coil carrier track 3 is fixedly connected to the linear bearings 4 on both sides;

[0044] The upper module 1 is slidably positioned above the coil carrier track 3 along the direction of the linear bearing 4 via the drive assembly 5;

[0045] The lower module 2 is slidably positioned below the coil carrier track 3 along the direction of the linear bearing 4 via the drive assembly 5; the straightening and bending assembly 12 of the upper module 1 and the support assembly of the lower module 2 respectively clamp the coil on the coil carrier track 3 via the drive assembly 5.

[0046] As a further improvement to this utility model, the coil carrier track 3 is fixedly connected to the linear bearing 4 on both sides by connecting blocks 31. The coil carrier track 3 is provided with a placement groove 32 for placing a coil module seat 33 for placing a semi-finished coil. The coil module seat 33 is provided with a placement block 331 and a placement plate 332. There are several placement blocks 331 and placement plates 332, which are arranged alternately and equidistantly. The placement block 331 is adapted to the coil. The placement plate 332 is provided with two V-shaped grooves 333 for placing the lead wire. The placement block 331 is adapted to the diameter of the coil. The upper diameter of the placement block 331 is smaller than the lower diameter of the placement block 331. The cross-section of the placement block 331 is trapezoidal. The V-shaped grooves 333 are used to hold the lead wire in place.

[0047] As a further improvement to this utility model, the straightening and bending assembly 12 includes a fixing plate 121 disposed on the lower end face of the upper module 1, a pressure block 122 for fixing the coil disposed on the lower end face of the fixing plate 121, a straightening rod 123 for straightening the angle of the lead wire, and a bending plate 124 for bending the lead wire. The pressure block 122, the straightening rod 123, and the bending plate 124 are arranged in several sets in a sequential, alternating, and equidistant manner. The pressure block 122 is circular, the lower end face of the straightening rod 123 is provided with an inverted V-shaped straightening groove 125, and the bending plate 124 is rectangular. The straightening groove is adapted to the lead wire of the lead wire. The circular pressure block 122 is used to press and fix the coil, and then the straightening rod 123 straightens the angle of the lead wire through the V-shaped groove 333 to avoid the angle of the lead wire from deviating. The height of the bending plate 124 is greater than the height of the straightening rod 123, so as to facilitate bending the lead wire downward.

[0048] As a further improvement to this utility model, each set of the straightening rod 123 has two corresponding positions of the two leads respectively located on the lead wire section. The two leads are respectively located on both sides of the coil. Each set of the straightening rod 123 also has two, which facilitates bending the two leads of the same coil and makes it easier to keep the bending angle consistent.

[0049] As a further improvement to this utility model, the support assembly includes a support base 21 disposed on the lower module 2, and a plurality of support rods 22 disposed on the support base 21. The support rods 22 are used to support the lead wire portion. The support rods 22 cooperate with the bending plate 124 to bend the lead wire portion. The support rods 22 provide support to the lead wire portion. When bending, the support rods 22 and the bending plate 124 cooperate to make both sides of the lead wire bear force at the same time, so as to avoid the lead wire rebounding after bending, and also to avoid the inaccurate bending angle when only the bending plate 124 bears force on the lead wire.

[0050] Preferably, the upper module 1 is also equipped with a micrometer 6 to facilitate adjustment of the bending height.

[0051] As a further improvement to this utility model, the fixing plate 121 is provided with a positioning pin 11, which is adapted to the positioning hole of the coil module seat 33 to prevent the fixing plate 121 from shifting position when it is engaged with the coil module seat 33. The cross-section of the positioning pin 11 is any one of the following: circle, rectangle, triangle, trapezoid, polygon, etc.

[0052] As a further improvement to this utility model, the drive component 5 is a cylinder. Each drive component 5 includes at least two cylinders, and the two cylinders are arranged diagonally. The two drive components 5 are arranged diagonally and in an object-oriented manner. The four cylinders are located on the four sides or four corners, which makes it easier for the upper module 1 and the lower module 2 to slide more stably. It also helps to improve the accuracy and stability of the sliding distance, improve the accuracy of bending, and thus improve the precision of the product.

[0053] The semi-finished coil is placed on the placement slot 32 of the coil placement seat. The drive mechanism drives the straightening and bending assembly 12 and the support assembly to clamp the semi-finished coil. The positioning pin 11 first cooperates with the positioning slot before clamping and bending. During the clamping process, the straightening rod 123 adjusts and corrects the angle of the lead wire, and the bending plate 124 bends the corrected lead wire downward.

[0054] The upper module 1 and lower module 2 synchronously clamp the coil and lead wire on the coil carrier track 3 via the drive component 5. The support component supports the lead wire portion, and the straightening and bending component 12 first corrects the angle of the lead wire, and then bends the lead wire away from the coil end. This device facilitates fixing the coil to prevent lead wire displacement and corrects the lead wire angle to prevent subsequent bending position displacement. The device, through the straightening and bending component 12 and the support component clamping, ensures that both sides of the lead wire are subjected to force simultaneously, which also helps to prevent the lead wire from rebounding after bending. The circular pressure block 122 is used to press and fix the coil. Then, the straightening rod 123 corrects the angle of the lead wire through the V-groove 333 to prevent the angle of the lead wire from deviating. The height of the bending plate 124 is greater than the height of the straightening rod 123, so as to facilitate the downward bending of the lead wire. The support rod 22 supports the lead wire. When bending, the support rod 22 and the bending plate 124 cooperate to make both sides of the lead wire bear force at the same time, so as to prevent the lead wire from rebounding after bending. It also prevents the bending angle from being inaccurate when only the bending plate 124 bears force on the lead wire. This reduces the complexity of the production process and technology, and can better serve and expand the market.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for correcting and bending inductor leads, characterized in that... ,include: Upper module (1); The lower module (2) is located below the upper module (1) via a linear bearing (4); The coil carrier track (3) is located between the upper module (1) and the lower module (2) via the linear bearing (4); A straightening and bending assembly (12) is provided on the lower end face of the upper module (1); A support assembly is provided on the upper end face of the lower module (2); Two sets of drive components (5) respectively drive the upper module (1) and the lower module (2) to slide along the linear bearing (4) toward the coil carrier track (3).

2. The inductor lead straightening and bending device according to claim 1, characterized in that, The straightening and bending assembly (12) includes a fixing plate (121) disposed on the lower end face of the upper module (1), a pressure block (122) disposed on the lower end face of the fixing plate (121) for fixing the coil, a straightening rod (123) for straightening the angle of the lead wire, and a bending plate (124) for bending the lead wire.

3. The inductor lead straightening and bending device according to claim 2, characterized in that, The pressure block (122), the straightening rod (123), and the bending plate (124) are arranged in several groups, alternating and equidistant from each other. The pressure block (122) is circular, the lower end face of the straightening rod (123) is provided with an inverted V-shaped straightening groove (125), and the bending plate (124) is rectangular. The straightening groove is adapted to the lead wire of the lead wire part.

4. The inductor lead straightening and bending device according to claim 3, characterized in that, Each set of the correcting rod (123) has two corresponding positions of the two leads respectively located in the lead wire section.

5. The inductor lead straightening and bending device according to claim 4, characterized in that, The support assembly includes a support base (21) disposed on the lower module (2) and a plurality of support rods (22) disposed on the support base (21). The support rods (22) are used to support the lead wire portion, and the support rods (22) cooperate with the bending plate (124) to bend the lead wire portion.

6. The inductor lead straightening and bending device according to claim 5, characterized in that, The coil carrier track (3) is fixedly connected to the linear bearing (4) on both sides by connecting blocks (31), and the coil carrier track (3) is provided with a placement groove (32) for placing a coil module seat (33) for placing a semi-finished coil.

7. The inductor lead straightening and bending device according to claim 6, characterized in that, The coil module base (33) is provided with a placement block (331) and a placement plate (332). There are several placement blocks (331) and placement plates (332), which are arranged alternately and at equal intervals. The placement block (331) is adapted to the coil. The placement plate (332) is provided with two V-shaped grooves (333) for placing the lead wire.

8. The inductor lead straightening and bending device according to claim 7, characterized in that, The fixing plate (121) is provided with a positioning pin (11), which is adapted to the positioning hole of the coil module seat (33).

9. The inductor lead straightening and bending device according to claim 8, characterized in that, The drive component (5) is a cylinder.

10. The inductor lead straightening and bending device according to claim 9, characterized in that, Each set of the drive components (5) includes at least two cylinders, and the two cylinders are arranged diagonally, and the two sets of drive components (5) are arranged diagonally.