Coil shaping structure of inductor winding machine and inductor winding machine

Abstract

The utility model relates to the technical field of inductor winding equipment, in particular to a coil shaping structure of an inductor winding machine and the inductor winding machine. The coil shaping structure comprises a first forming claw and a second forming claw, and shaping grooves are formed in the top of the first forming claw and the top of the second forming claw. The shaping groove comprises a groove bottom and a groove wall, the groove bottom and the groove wall are matched with the coil in shape, and the groove bottom is used for supporting the coil. One part of the groove wall is formed on the side, close to the second forming claw, of the first forming claw, the other part of the groove wall is formed on the side, close to the first forming claw, of the second forming claw, and the groove wall is used for providing lateral clamping force for the coil. According to the coil shaping structure, the shaping groove comprises the groove bottom, in the coil shaping process, the groove bottom provides the reverse supporting force, coil turn-to-turn layering, paint film damage or separation from the shaping structure can be prevented, the yield of thick-wire inductors machined by a winding machine is increased, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of inductor winding equipment, and in particular to a coil shaping structure and an inductor winding machine. Background Technology

[0002] Surface mount inductors, also known as SMD inductors, are passive electronic components that are directly soldered onto the surface of a printed circuit board using surface mounting technology. Their structure typically consists of a coil (wound with wire) and a magnetic core, and they are characterized by miniaturization, high stability, high energy storage, and low resistance. They are mostly millimeter-sized, making them suitable for high-density circuit layouts.

[0003] Based on the wire diameter of the coil, surface mount inductors are divided into thick-wire inductors and thin-wire inductors. Thin-wire inductors can be integrally formed using an inductor winding machine. Thick-wire inductors, with their larger wire diameter, are prone to insufficient clamping force and delamination between coil turns when using an inductor winding machine. Therefore, the coil is usually fabricated first and then combined with magnetic materials; this method involves more steps and is less efficient. Utility Model Content

[0004] This application provides a coil shaping structure for an inductor winding machine and an inductor winding machine, aiming to solve the problem of insufficient clamping force when using an inductor winding machine to manufacture thick wire inductors and improve the processing efficiency of thick wire inductors.

[0005] The technical solution of this application is as follows:

[0006] In a first aspect, this application provides a coil shaping structure for an inductor winding machine, including a first shaping claw and a second shaping claw, wherein the top of the first shaping claw and the second shaping claw are provided with shaping grooves.

[0007] The shaping groove includes a groove bottom and groove walls. The shapes of the groove bottom and groove walls are adapted to the coil, and the groove bottom is used to support the coil.

[0008] A portion of the groove wall is formed on the side of the first forming claw near the second forming claw, and another portion of the groove wall is formed on the side of the second forming claw near the first forming claw. The groove wall is used to provide lateral clamping force to the coil.

[0009] Based on the coil shaping structure provided in the first aspect, the shaping groove includes a groove bottom. During the coil shaping process, when a pulling force is used to fold the tail end of the coil upward from the groove bottom, the groove bottom can provide a reverse supporting force to keep the coil stable, thereby reducing the possibility of the coil deforming towards the groove wall. In this way, the pressure of the coil on the groove wall is reduced, and the first shaping claw and the second shaping claw will not be separated due to the lateral pressure of the coil. Therefore, the first shaping claw and the second shaping claw can better fix the coil and prevent its inter-turn delamination, side scratches, or detachment from the shaping structure.

[0010] In one possible design, the coil shaping structure also includes a depth adjustment structure located at the bottom of the groove for adjusting the depth of the shaping groove.

[0011] Based on the coil shaping structure provided in this embodiment, a depth adjustment structure is provided at the bottom of the slot. This allows the depth of the shaping slot to be adjusted according to different inductor heights, thus making it suitable for shaping coils of inductors of varying heights. This improves the compatibility of the coil shaping structure and reduces the processing cost of the inductor.

[0012] In one possible design, the depth adjustment structure includes a threaded hole and a stud, the threaded hole being formed at the bottom of the groove, the stud being threadedly connected to the threaded hole, and the stud having a support surface for supporting the coil.

[0013] Based on the coil shaping structure provided by this embodiment, the depth of the shaping groove can be adjusted by the cooperation of the stud and the threaded hole, which has the characteristics of simple structure and easy operation.

[0014] In one possible design, the top of the second forming claw is provided with a wire clearance groove, which is located on the side of the forming groove away from the first forming claw. The bottom of the groove is formed in the first forming claw and is connected to the groove wall at the first forming claw. The threaded hole is coaxially arranged with the forming groove.

[0015] Based on the coil shaping structure provided by this embodiment, the bottom of the groove is formed on the first forming claw, which can effectively support the coil, reduce the influence of tension and flipping force on the coil, and reduce coil deformation and inter-turn delamination. In addition, the threaded hole is coaxially arranged with the shaping groove, so the stud can be located in the central area of ​​the shaping groove. In this way, the stud can better support the coil and reduce coil deformation.

[0016] In one possible design, the projection of the groove wall along the depth direction of the shaping groove is circular or racetrack-shaped.

[0017] Based on the coil shaping structure provided by this embodiment, the slot wall fits the side of the coil more closely during use, resulting in a better shaping effect.

[0018] In one possible design, the surface of the tank wall has a diamond coating with a coefficient of friction ≤0.092.

[0019] Based on the coil shaping structure provided in this embodiment, a diamond coating is applied to the groove wall, which can increase the wear resistance of the groove wall, improve the wear life of the coil shaping structure, and reduce the maintenance frequency of the coil shaping structure. At the same time, when the coefficient of friction of the groove wall surface is ≤0.092, the groove wall is relatively smooth, which can reduce the scratches on the coil surface by the groove wall and reduce the damage rate of the varnish film on the coil surface.

[0020] In one possible design, the thickness of the diamond coating is 1-6 μm.

[0021] Based on the coil shaping structure provided by this embodiment, when the thickness of the diamond coating is 1-6μm, the wear resistance of the groove wall can be enhanced, and the cost is low.

[0022] In one possible design, the first forming claw and the second forming claw are made of non-magnetic steel. In this way, the first forming claw and the second forming claw are less likely to attract the magnetic core, making it easier to unload the material.

[0023] In one possible design, the Rockwell hardness of the groove bottom is greater than 55.

[0024] Based on the coil shaping structure provided in this embodiment, the coil generates a certain pressure and friction on the bottom of the slot during coil turning. The high hardness of the slot bottom effectively prevents coil deformation. Furthermore, the high hardness also improves the wear resistance of the slot bottom.

[0025] Secondly, based on the same inventive concept, this application also provides an inductor winding machine, including any of the above-mentioned coil shaping structures.

[0026] The beneficial effects of the inductor winding machine provided in the second aspect above can be found in the first aspect and the beneficial effects of various possible embodiments of the first aspect, and will not be repeated here. Attached Figure Description

[0027] Figure 1 This is a state diagram of a T-Core inductor before shaping.

[0028] Figure 2 This is a schematic diagram of the coil shaping structure in an existing integrated inductor winding machine.

[0029] Figure 3 To adopt Figure 2 The diagram shows the state of the coil shaping structure after inductor clamping and shaping.

[0030] Figure 4 This is a schematic diagram of a coil shaping structure provided in an embodiment of this application.

[0031] Figure 5 This is a schematic diagram showing the state of the T-Core inductor after reshaping.

[0032] Figure 6 This is a schematic diagram of another inductor winding machine coil shaping structure provided in an embodiment of this application.

[0033] Figure 7 This is a schematic diagram of the structure of the first forming claw provided in an embodiment of this application.

[0034] in,

[0035] The related diagrams for T-Core are labeled as follows:

[0036] 1. T-Core inductor; 11. Magnetic core; 111. Horizontal section; 12. Coil; 121. Start end; 122. End end;

[0037] The relevant reference numerals for the coil shaping structure in existing integrated inductor winding machines are as follows:

[0038] 2′, First forming claw;

[0039] 3′, Second forming claw;

[0040] 4′, Third forming claw; 41′, First pressure plate;

[0041] 5′, Fourth forming claw; 51′, Second pressure plate;

[0042] 6′, Shaping groove;

[0043] The relevant reference numerals in the drawings for the coil shaping structure in the integrated inductor winding machine provided in this application embodiment are:

[0044] 2. First forming claw;

[0045] 3. Second forming claw; 31. Wire clearance groove;

[0046] 4. Third forming claw; 41. First pressure plate;

[0047] 5. Fourth forming claw; 51. Second pressure plate;

[0048] 6. Shaping groove; 61. Groove bottom; 62. Groove wall;

[0049] 7. Depth adjustment structure; 71. Stud; 711. Support surface. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and drawings of this application are intended to cover non-exclusive inclusion.

[0052] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0053] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by spacers, screws, bolts, or other spacers. A physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection. A physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] The present application will be described in detail below with reference to the accompanying drawings.

[0056] In the existing technology, when the winding wire of the surface mount inductor is relatively thin, especially when the wire thickness is less than 0.12mm, an integrated inductor winding machine is generally used to manufacture the T-Core inductor in the surface mount inductor.

[0057] Figure 1 This is a state diagram of a T-Core inductor before shaping; please refer to it. Figure 1 The T-Core inductor 1 includes a magnetic core 11 and a coil 12. The magnetic core 11 includes a horizontal portion 111 and a vertical portion, with the vertical portion perpendicular to the horizontal portion 111. The coil 12 is wound around the vertical portion.

[0058] Existing integrated inductor winding machines typically include a winding structure, a cutting structure, a shaping structure, and a coil flipping structure. The main function of the winding structure is to wind the coil 12 on the vertical part of the magnetic core 11. After the T-Core inductor 1 with the coil 12 wound is cut by the cutting structure, it is sent to the shaping structure.

[0059] Please continue to refer to this. Figure 1After the T-Core inductor 1 is cut, the beginning end 121 and the end end 122 of the coil 12 extend toward the same side of the coil 12. The shaping structure is used to clamp the T-Core inductor 1, and the flipping structure folds the beginning end 121 and the end end 122 of the coil 12 toward the surface of the T-Core horizontal part 111 while the T-Core inductor 1 is clamped, thereby shaping the coil 12 so that the shape of the coil 12 meets the requirements.

[0060] Figure 2 Please refer to the schematic diagram of the coil shaping structure in an existing integrated inductor winding machine. Figure 2 The existing coil shaping structure includes a first shaping claw 2′, a second shaping claw 3′, a third shaping claw 4′ and a fourth shaping claw 5′. A through-hole shaping groove 6′ is formed on the side opposite to the first shaping claw 2′ and the second shaping claw 3′.

[0061] The third forming claw 4' is located on the side of the first forming claw 2' away from the second forming claw 3', and the fourth forming claw 5' is located on the side of the second forming claw 3' away from the first forming claw 2'. The top of the third forming claw 4' has a first pressure plate 41' extending toward the forming groove 6', and the fourth forming claw 5' has a second pressure plate 51' extending toward the forming groove 6'. The first forming claw 2', the second forming claw 3', the third forming claw 4', and the fourth forming claw 5' are all driven by a cylinder.

[0062] Please combine Figure 1 and Figure 2 Before the T-Core inductor 1 is placed into the shaping slot 6', under the control of the cylinder, the first shaping claw 2' and the second shaping claw 3' can be separated by a certain distance, and the first pressure plate 41' and the second pressure plate 51' can be removed from the top of the shaping slot 6'. After the inductor is placed into the shaping slot 6', under the control of the cylinder, the first shaping claw 2' and the second shaping claw 3' move towards each other, clamping the inductor coil 12, and the first pressure plate 41' and the second pressure plate 51' press down on the horizontal part 111 of the T-Core inductor 1.

[0063] Figure 3 To adopt Figure 2 The diagram shown illustrates the state of the coil shaping structure after clamping and shaping with thick wire inductors. For rectangular or similar rectangular cross-section wires, when the wire thickness is greater than 0.12mm, it is considered a thick wire inductor.

[0064] Please continue to refer to this. Figure 2 and Figure 3When using an existing integrated inductor winding machine to manufacture a thick-wire T-Core inductor 1, due to the thickness of the wire, the bending force generated at the bend of the coil 12 during the winding process will cause the coil 12 to tilt. The tilted coil 12 exerts a reverse force on the groove wall 62' of the shaping groove 6'. This will damage the surface of the coil 12 on the one hand, and on the other hand, it will lead to insufficient clamping force of the first forming claw 2' and the second forming claw 3' on the coil 12', resulting in coil slippage, coil detachment from the claw, and delamination between coil turns. Figure 3 The area circled at point A in the middle is the region where stratification occurs.

[0065] To address this issue, existing technologies employ a step-by-step manufacturing method for the thick-wire T-Core inductor 1. This involves first winding a hollow coil 12, then bending the beginning 121 and end 122 of the hollow coil 12 at 90° angles, assembling the hollow coil 12 with the magnetic core 11, and finally flattening the beginning 121 and end 122 of the coil 12 onto the surface of the horizontal portion 111 of the magnetic core 11. This method involves numerous steps and is relatively inefficient.

[0066] In view of this, this application improves the coil shaping structure of existing inductor winding machines and provides a new coil shaping structure for inductor winding machines to solve the problems of insufficient coil clamping force, coil slippage, damage, and inter-turn delamination.

[0067] Figure 4 This is a schematic diagram of a coil shaping structure provided in an embodiment of this application. Figure 5 This is a schematic diagram showing the state of T-Core inductor 1 after reshaping. Please refer to it. Figure 4 and Figure 5 The coil shaping structure of the inductor winding machine provided in this application includes a first forming claw 2 and a second forming claw 3. A shaping groove 6 is provided on the top of the first forming claw 2 and the second forming claw 3. The shaping groove 6 includes a groove bottom 61 and a groove wall 62. The shapes of the groove bottom 61 and the groove wall 62 are adapted to the coil 12. The groove bottom 61 is used to support the coil 12.

[0068] A portion of the groove wall 62 is formed on the side of the first forming claw 2 near the second forming claw 3, and another portion of the groove wall 62 is formed on the side of the second forming claw 3 near the first forming claw 2. The groove wall 62 is used to provide lateral clamping force to the coil 12.

[0069] Please continue to refer to this. Figure 4It should be noted that the coil shaping structure of the inductor winding machine provided in this application, in addition to the first forming claw 2 and the second forming claw 3, also includes a third forming claw 4 and a fourth forming claw 5. The third forming claw 4 is located on the side of the first forming claw 2 away from the second forming claw 3, and the fourth forming claw 5 is located on the side of the second forming claw 3 away from the first forming claw 2. The top of the third forming claw 4 has a first pressure plate 41 extending toward the shaping groove 6, and the fourth forming claw 5 has a second pressure plate 51 extending toward the shaping groove 6. The working process and principle of the first forming claw 2, the second forming claw 3, the third forming claw 4, and the fourth forming claw 5 are similar to those of the first forming claw 2, the second forming claw 3, the third forming claw 4, and the fourth forming claw 5. Figure 2 The coil shaping structure in the existing integrated inductor winding machine shown is the same, and will not be described in detail here.

[0070] Please continue to refer to this. Figure 4 and Figure 5 In this application, when the coil shaping structure clamps the T-Core inductor 1, the bottom 61 of the shaping groove 6 provides axial support to the coil 12. At least two opposing portions of the groove wall 62 of the shaping groove 6 contact the side of the coil 12. The first pressure plate 41 and the second pressure plate 51 both contact the surface of the transverse portion 111 of the inductor. During coil shaping, the first forming claw 2 and the second forming claw 3 apply clamping force to the coil 12 from opposite sides. The groove bottom 61, the first pressure plate 41, and the second pressure plate 51 position the coil 12 axially.

[0071] During the shaping process of coil 12, when a pulling force is used to fold the tail end 122 of coil 12 upward from the bottom of slot 61, the bottom of slot 61 can provide a reverse supporting force to keep coil 12 stable, thereby reducing the possibility of coil 12 deforming towards slot wall 62. In this way, the pressure of coil 12 on slot wall 62 is reduced, and the first forming claw 2 and the second forming claw 3 will not be separated by the lateral pressure of coil 12. Therefore, the first forming claw 2 and the second forming claw 3 can better fix coil 12, preventing delamination between turns, damage to the enamel film, or detachment from the shaping structure.

[0072] Please continue to refer to this. Figure 4 and Figure 5 In some embodiments of this application, when shaping the coil 12 of the T-Core inductor 1, the bottom of the coil 12 can directly contact the slot bottom 61. Table 1 below shows a comparison of the effects of existing coil shaping structures and the coil shaping structure of this application on shaping the same inductor. The cross-section of the wire used to wind the coil 12 is a rounded rectangle with a width of 0.15 mm and a length of 0.35 mm, and the winding method is vertical winding.

[0073] Table 1

[0074] Probability of inter-turn delamination in coil Flip-line release claw Coil enamel film damage rate Existing coil shaping structure 60％ 15％ 15％ The coil shaping structure of this application 0％ 0％ 5％

[0075] As can be clearly seen from the data in Table 1, the coil shaping structure of this application can effectively solve the problems of coil turn delamination, wire flipping and claw detachment, and coil enamel film damage that occur when shaping thick wire inductors using existing coil shaping structures.

[0076] It should be noted that the wires used to wind coil 12 currently come in both thick and thin varieties, and also in different wire shapes, primarily circular and rounded rectangular. Thick wires are stiffer, making them prone to delamination, slippage, and enamel damage during winding. Thin wires are softer and less prone to these problems. Furthermore, rounded rectangular winding methods include horizontal and vertical winding, with vertical winding being the most likely to cause these problems. The coil shaping structure provided in this application effectively solves these issues.

[0077] It should also be noted that the coil shaping structure of the inductor winding machine provided in this application can be applied to the shaping of both thick wire coils 12 and thin wire coils 12. The wire used to wind the coil 12 can have a circular cross-section or a rounded rectangular cross-section, and can be wound vertically or horizontally.

[0078] Figure 6 For a schematic diagram of another inductor winding machine coil shaping structure provided in an embodiment of this application, please refer to... Figure 6 In one embodiment of this application, the coil shaping structure further includes a depth adjustment structure 7, which is disposed at the bottom of the groove 61 and is used to adjust the depth of the shaping groove 6.

[0079] Specifically, inductors are divided into different series, and the height of the coil 12 varies depending on the series. For example, small-sized inductors come in three different heights: 0.85mm, 1.0mm, and 1.2mm. The bottom 61 of the shaping slot 6 in this application is equipped with a depth adjustment structure 7. This allows the depth of the shaping slot 6 to be adjusted according to different inductor heights, thus making it suitable for shaping coils 12 of varying heights. This helps improve the compatibility of the coil shaping structure and reduce the processing cost of the inductor.

[0080] Figure 7 This is a schematic diagram of the structure of the first forming claw provided in the embodiments of this application. Please refer to it. Figure 5 , Figure 6 and Figure 7 In some embodiments of this application, the depth adjustment structure 7 includes a threaded hole and a stud 71. The threaded hole is formed at the bottom of the groove 61, and the stud 71 is threadedly connected to the threaded hole. The stud 71 has a support surface 711 for supporting the coil 12.

[0081] Specifically, to achieve adjustable depth of the shaping groove 6, a threaded hole can be provided at the bottom 61 of the groove. By adjusting the mating depth between the stud 71 and the threaded hole, the height of the supporting surface 711 of the stud 71 is changed, thereby adjusting the depth of the shaping groove 6. It is worth noting that this implementation method is simple in structure and easy to operate. In addition to using the mating method of the stud 71 and the threaded hole, other structures can also be used, such as a telescopic platform, whose top surface is used to support the coil 12, to achieve adjustment of the depth of the shaping groove 6.

[0082] Please continue to refer to this. Figure 5 , Figure 6 and Figure 7 In some embodiments of this application, a wire clearance groove 31 is provided on the top of the second forming claw 3, and the wire clearance groove 31 is located on the side of the shaping groove 6 away from the first forming claw 2. The groove bottom 61 is formed in the first forming claw 2 and is connected to the groove wall 62 of the first forming claw 2. The threaded hole is coaxially arranged with the shaping groove 6.

[0083] Specifically, the top of the second forming claw 3 is provided with a wire clearance groove 31. When the forming groove 6 shapes the T-Core inductor, the beginning end 121 and the end end 122 of the coil 12 of the T-Core inductor face one side of the second forming claw 3.

[0084] Therefore, when pulling up the wire and flipping the wire, it is done from the second forming claw 3. When the coil 12 is subjected to the pulling force and the flipping force, the part of the coil 12 near the first forming claw 2 will generate downward pressure. In this application, the groove bottom 61 is formed on the first forming claw 2, which can effectively support the coil 12, reduce the influence of the pulling force and the flipping force on the coil 12, and reduce the deformation of the coil 12 and the delamination between turns.

[0085] In addition, the threaded hole and the shaping groove 6 are coaxially arranged, so the stud 71 can be located in the central area of ​​the shaping groove 6. In this way, the stud 71 can better support the coil 12 and reduce the deformation of the coil 12.

[0086] Please continue to refer to this. Figure 5 and Figure 6 In some embodiments of this application, the projection of the groove wall 62 along the depth direction of the shaping groove 6 is circular or racetrack-shaped.

[0087] Specifically, the coil 12 of the surface mount inductor is mainly circular or racetrack-shaped. Along the depth direction of the shaping groove 6, the projection of the groove wall 62 is circular. This shape of the shaping groove 6 can be adapted to the circular coil 12. During shaping, the groove wall 62 fits the side of the coil 12 more closely, resulting in a better shaping effect.

[0088] Similarly, along the depth direction of the shaping groove 6, the projection of the groove wall 62 is racetrack-shaped. This shape of the shaping groove 6 can be adapted to the racetrack-shaped coil 12. During shaping, the groove wall 62 fits the side of the coil 12 more closely, and the shaping effect will be better.

[0089] Please continue to refer to this. Figure 5 and Figure 6 In some embodiments of this application, the surface of the groove wall 62 has a diamond coating with a friction coefficient ≤0.092.

[0090] Specifically, applying a diamond coating to the groove wall 62 can increase the wear resistance of the groove wall 62, improve the wear life of the coil shaping structure, and reduce the maintenance frequency of the coil shaping structure.

[0091] Meanwhile, when the coefficient of friction of the groove wall 62 surface is ≤0.092, the groove wall 62 is relatively smooth, which can reduce the scratches on the surface of the coil 12 by the groove wall 62 and reduce the damage rate of the varnish film on the surface of the coil 12.

[0092] Please continue to refer to this. Figure 5 and Figure 6 In some embodiments of this application, the thickness of the diamond coating is 1-6 μm.

[0093] Specifically, a diamond coating thickness of 1-6 μm can enhance the wear resistance of the groove wall 62. A diamond coating that is too thick increases cost, while a coating that is too thin reduces wear resistance. In some embodiments of this application, the thickness of the diamond coating can be 3 micrometers, 5 micrometers, etc.

[0094] Please continue to refer to this. Figure 5 and Figure 6 In some embodiments of this application, the first forming claw 2 and the second forming claw 3 are made of non-magnetic steel.

[0095] Specifically, the inductor's magnetic core 11 is made of pressed iron powder. Ordinary steel, after processing, may become magnetic, attracting the magnetic core 11 and affecting material cutting. Using non-magnetic steel to make the first forming claw 2 and the second forming claw 3 can avoid this problem. DG60 is a commonly used non-magnetic steel with high hardness, low magnetic permeability, and excellent wear resistance. Alternatively, other non-magnetic steels such as HPM75 can also be selected as materials for the first forming claw 2 and the second forming claw 3.

[0096] Please continue to refer to this. Figure 5 and Figure 6 In some embodiments of this application, the Rockwell hardness of the groove bottom 61 is greater than 55. Specifically, when the coil 12 is turned, the coil 12 will exert a certain pressure and friction on the groove bottom 61. The high hardness of the groove bottom 61 can better prevent the coil 12 from deforming. Moreover, the high hardness will result in better wear resistance of the groove bottom 61.

[0097] Based on the same inventive concept, this application also provides an inductor winding machine, including any of the above-mentioned coil shaping structures. The beneficial effects of the inductor winding machine can be found in the beneficial effects brought about by the above-described coil shaping structures, and will not be repeated here.

[0098] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0099] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A coil shaping structure for an inductor winding machine, characterized in that, It includes a first forming claw and a second forming claw, and the top of the first forming claw and the second forming claw are provided with forming grooves; The shaping groove includes a groove bottom and a groove wall, the shapes of which are adapted to the coil, and the groove bottom is used to support the coil. A portion of the groove wall is formed on the side of the first forming claw near the second forming claw, and another portion of the groove wall is formed on the side of the second forming claw near the first forming claw. The groove wall is used to provide lateral clamping force to the coil.

2. The coil shaping structure of the electric inductor winding machine according to claim 1, wherein, The coil shaping structure also includes a depth adjustment structure, which is disposed at the bottom of the groove and is used to adjust the depth of the shaping groove.

3. The coil shaping structure of the electric inductor winding machine according to claim 2, wherein, The depth adjustment structure includes a threaded hole and a stud. The threaded hole is formed at the bottom of the groove, and the stud is threadedly connected to the threaded hole. The stud has a support surface that supports the coil.

4. The coil shaping structure of the electric inductor winding machine according to claim 3, wherein, The groove bottom is formed in either the first forming claw or the second forming claw, and the threaded hole is coaxially arranged with the forming groove.

5. The coil shaping structure of the inductor winding machine according to any one of claims 1 to 4, characterized in that, Along the depth direction of the shaping groove, the projection of the groove wall is circular or racetrack-shaped.

6. The coil shaping structure of the inductor winding machine according to any one of claims 1 to 4, characterized by The surface of the groove wall has a diamond coating and a friction coefficient ≤0.

092.

7. The coil shaping structure of the electric inductor winding machine according to claim 6, wherein The thickness of the diamond coating is 1-6 μm.

8. The coil shaping structure of the electric inductor winding machine according to any one of claims 1 to 4, wherein The first and second forming claws are made of non-magnetic steel.

9. The coil shaping structure of the electric inductor winding machine according to claim 8, wherein, The Rockwell hardness of the groove bottom is greater than 55.

10. An inductor winding machine characterized by, Includes the coil shaping structure as described in any one of claims 1 to 9.

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