Inductive pin-forming clamp

Abstract

The utility model discloses an inductance pin forming clamp, including base and the multiple group inductance pin forming unit of being arranged on it, inductance pin forming unit includes inductance positioning slot and pin forming pressure block, inductance positioning slot middle part is equipped with the body placement area, both sides are equipped with the open type pin positioning channel of radial extension, and the side wall included angle of pin positioning channel, length adaptation inductance pin parameter, and the end edge of pin positioning channel is the bending reference point, when working, the inductance body is placed in the body placement area, and the pressure block is pushed into the pin fixed reference point after pressing, and then is bent. The utility model discloses through the accurate limitation parameter of card slot structure, and multiple unit adaptation batch or multi -specification synchronous forming, solves traditional manual low precision, poor efficiency, the problem of insufficient general property, guarantees the reliability of welding, and reduces production cost.

Description

Technical Field

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

[0002] Commonly used inductors are divided into two categories: cased inductors and caseless inductors. Cased inductors usually have their leads soldered to the base, and can be used with surface mount soldering. Caseless inductors, on the other hand, require their leads to be soldered directly into the circuit. Especially in high-requirement industries such as aerospace, whether it is through-hole soldering, post-mount soldering, or mounting soldering, the leads must be shaped first to ensure soldering reliability.

[0003] A typical caseless inductor is made of two sets of enameled wire wound in the same or opposite directions. The original leads have no special shape and cannot be directly adapted to soldering requirements. The core of inductor lead forming is the precise control of the lead opening angle and lead length. Only by knowing these two parameters can the pad size or terminal specifications in the inductor matching circuit be achieved reliably. Among them, mounting soldering has the most stringent requirements for lead shape, requiring the angle and length of the formed leads to be precisely adapted to the mounting position; through-hole soldering and post-wound soldering require bending the leads to the same plane before subsequent assembly.

[0004] Currently, the forming method for caseless inductor leads mostly relies on the traditional manual bending operation using hand tools (such as tweezers and pliers). On the one hand, manual operation cannot precisely fix the bending point of the leads, easily leading to deviations in the lead opening angle and inconsistent lengths. Especially in small-size applications, parameter errors can directly exceed the soldering compatibility range, significantly reducing product yield. On the other hand, the manual forming method is extremely inefficient and cannot meet the needs of mass production. Furthermore, prolonged operation can easily amplify parameter errors due to hand fatigue. Therefore, there is an urgent need for an inductor lead forming fixture. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides an inductor pin forming fixture.

[0006] This utility model discloses an inductor pin forming fixture, including a base and a plurality of inductor pin forming units disposed on the base;

[0007] The inductor pin forming unit includes an inductor positioning slot and a pin forming pressure block adapted thereto; the inductor positioning slot has a body placement area in the middle that is adapted to the outer contour of the inductor body; the inductor positioning slot forms open pin positioning channels on both sides corresponding to the body placement area, and the pin positioning channels extend radially along the body placement area; the included angle of the sidewall of the pin positioning channel is adapted to the preset opening angle of the target inductor pin, the length of the pin positioning channel along the extension direction is adapted to the preset length of the target inductor pin, and the end edge of the pin positioning channel away from the body placement area constitutes the bending reference position of the inductor pin;

[0008] The pin forming block is used to push the inductor pin into the extension direction of the pin positioning channel after the inductor is placed in the body placement area, and press the inductor pin against the side wall of the pin positioning channel to fix the position of the bending reference position, while limiting the opening angle and length of the inductor pin to prevent the inductor pin from shifting during the forming process.

[0009] As a further improvement of this utility model, the inductor positioning slot is composed of a first slot seat and a second slot seat that are symmetrically arranged and spaced apart from each other; the middle of the opposite side of the first and second slot seats is provided with a semi-circular recess that is adapted to the outer contour of the inductor body, and the two semi-circular recesses cooperate to form the body placement area.

[0010] The first and second card slots are located on both sides of the semi-circular recess, respectively forming pin positioning sidewalls that extend radially along the body placement area; the two pin positioning sidewalls on the same end cooperate to form the pin positioning channel.

[0011] As a further improvement of this utility model, the included angle between the pin positioning sidewalls on both sides is adapted to the preset opening angle of the target inductor pin, the length of the pin positioning sidewall along the extension direction is adapted to the preset length of the target inductor pin, and the end edge of the pin positioning sidewall away from the semi-circular recess constitutes the bending reference position of the inductor pin.

[0012] As a further improvement of this utility model, the two pin forming blocks are respectively arranged corresponding to the pin positioning channels on both sides. The base is respectively recessed to form a sliding groove corresponding to the pin forming blocks on both sides. The bottom of the pin forming blocks on both sides slides in the sliding groove and can slide towards the corresponding pin positioning channel through the sliding groove.

[0013] As a further improvement of this utility model, the shape of the end of the pin forming block near the pin positioning channel is adapted to the shape of the pin positioning channel.

[0014] As a further improvement of this utility model, the number of inductor pin forming units is 3 sets. The 3 sets of inductor pin forming units are arranged in a row on the base and spaced apart. The 3 sets of inductor pin forming units can be adapted to inductor pin forming of the same or different specifications.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention uses the "body placement area + open pin positioning channel" structure of the inductor positioning slot to fix the forming benchmark from the source: the body placement area is adapted to the shape of the inductor to avoid displacement during forming; the side wall angle and extension length of the pin positioning channel are preset with the pin opening angle and length respectively, and the end edge of the channel is clearly defined as the bending benchmark position. With the help of the pressure block to press and fix, it completely solves the parameter deviation problem of traditional manual operation, ensures the consistency of pin size after forming, meets the welding adaptation requirements of high-requirement industries such as aerospace, and eliminates the risk of loose mounting and poor welding connection.

[0017] This invention enables the simultaneous forming of multiple inductors by arranging multiple inductor pin forming units on the base. Compared with manual bending one by one, the efficiency is increased several times. At the same time, the forming process is simplified to a three-step standardized operation of "discharge inductor - pressing block - bending", which eliminates the need for repeated measurement and adjustment, reduces the operation threshold and shortens the processing time of a single inductor, making it fully suitable for the mass production of small-volume shell-less inductors. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembly of the base and the inductor positioning slot of an inductor pin forming fixture according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the inductor positioning slot of an inductor pin forming fixture disclosed in one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the pin forming pressure block of an inductor pin forming fixture disclosed in one embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the placement of the inductor body in an inductor pin forming fixture according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the pin forming process of an inductor pin forming fixture disclosed in one embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the inductor pin forming fixture before the inductor pin is bent, according to an embodiment of the present invention.

[0024] Figure 7This is a schematic diagram of the inductor pin bending structure of an inductor pin forming fixture disclosed in one embodiment of the present invention;

[0025] Figure 8 This is a top view of the inductor pin bending structure of an inductor pin forming fixture disclosed in one embodiment of the present invention.

[0026] In the picture:

[0027] 1. Inductor body; 2. Inductor pin; 21. Preset length diagram of inductor pin; 22. Preset opening angle diagram of inductor pin; 3. Base; 31. Slide groove; 4. Inductor pin forming unit; 41. First slot seat; 42. Second slot seat; 43. Pin forming pressure block; 44. Body placement area; 441. Semi-circular recess; 45. Pin positioning channel; 451. Pin positioning sidewall; 452. Bending reference position. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The present invention will now be described in further detail with reference to the accompanying drawings:

[0032] like Figure 1-8 As shown, an inductor pin forming fixture according to this utility model includes a base 3 and multiple sets of inductor pin forming units 4 disposed on the base 3; wherein, the inductor pin forming unit 4 includes an inductor positioning slot and a pin forming pressure block 43 adapted thereto; the inductor positioning slot has a body placement area 44 in the middle that is adapted to the outer contour of the inductor body 1; the inductor positioning slot forms open pin positioning channels 45 on both sides corresponding to the body placement area 44, and the pin positioning channels 45 extend radially along the body placement area 44; the included angle of the sidewalls of the pin positioning channels 45 is perpendicular to the target inductor pin... The preset opening angle of pin 2 is adapted, the length of pin positioning channel 45 along the extension direction is adapted to the preset length of target inductor pin 2, and the end edge of pin positioning channel 45 away from the body placement area 44 constitutes the bending reference position of inductor pin 2; pin forming pressure block 43 is used to push in along the extension direction of pin positioning channel 45 and press inductor pin 2 against the side wall of pin positioning channel 45 after inductor is housed in body placement area 44, so as to fix the position of bending reference position, and at the same time limit the opening angle and length of inductor pin 2 to prevent inductor pin 2 from being displaced during forming process.

[0033] Specifically:

[0034] like Figure 2 As shown, in the above embodiment, preferably, the inductor positioning slot is composed of a first slot seat 41 and a second slot seat 42 that are symmetrically arranged and spaced apart from each other; the middle of the opposite sides of the first slot seat 41 and the second slot seat 42 are respectively provided with semi-circular recesses 441 that are adapted to the outer contour of the inductor body 1, and the two semi-circular recesses 441 cooperate to form the body placement area 44; the portions of the first slot seat 41 and the second slot seat 42 located on both sides of the semi-circular recesses 441 respectively form pin positioning sidewalls 451 that extend radially along the body placement area 44; the two pin positioning sidewalls 451 on the same end cooperate to form an open pin positioning channel 45. In this embodiment, the included angle of the two pin positioning sidewalls 451 is adapted to the preset opening angle of the target inductor pin 2, the length of the pin positioning sidewall 451 along the extension direction is adapted to the preset length of the target inductor pin 2, and the end edge of the pin positioning sidewall 451 away from the semi-circular recesses 441 constitutes the bending reference position 452 of the inductor pin 2. That is, in this embodiment, the width of the pin positioning sidewalls 451 on both sides away from the body placement area 44 is greater than the width of the side closer to the body placement area 44.

[0035] like Figure 3-4As shown, in the above embodiment, preferably, two pin forming blocks 43 are respectively arranged corresponding to the pin positioning channels 45 on both sides. The base 3 is recessed with grooves 31 corresponding to the pin forming blocks 43 on both sides. The bottoms of the pin forming blocks 43 on both sides slide in the grooves 31 and can slide towards the corresponding pin positioning channels 45 through the grooves 31. In this example, the bottom of the pin forming block 43 is provided with a slider that cooperates with the groove 31. The slider is integrally arranged with the pin forming block 43. The shape of the end of the pin forming block 43 near the pin positioning channel 45 is adapted to the shape of the pin positioning channel 45 to achieve precise positioning of the bending reference position 452 of the target inductor pin 2, the length of the inductor pin 2, and the preset opening angle.

[0036] In the above embodiments, preferably, the preset length of the inductor pin is shown in Figure 21. Figure 8 As shown in Figure 22, the preset opening angle of the inductor pin is illustrated. Figure 8 As shown.

[0037] In the above embodiment, preferably, the number of inductor pin forming units 4 is 3 sets, and the 3 sets of inductor pin forming units 4 are arranged in a row on the base 3 with intervals between them. The 3 sets of inductor pin forming units 4 can be adapted to form inductor pins of the same or different specifications.

[0038] like Figure 5-8 As shown, the usage method of this embodiment is as follows:

[0039] 1) The inductor body 1 to be formed (e.g., Figure 6 As shown, the two inductor pins 2 of the inductor body 1 are placed in the body placement area 44 of each group of inductor pin forming units 4, so that the two inductor pins 2 naturally rest on the corresponding pin positioning sidewall 451, ensuring that the root of the inductor pin 2 fits the edge of the semi-circular recess 441.

[0040] 2) For each group of units, push the pin forming block 43 along the slide groove 31 of the base 3 towards the pin positioning channel 45, so that the pin forming block 43 fits against the inductor pin 2 and presses it against the pin positioning side wall 451. At this time, the pin forming block 43, through cooperation with the pin positioning side wall 451, synchronously fixes the bending reference position, opening angle and length of the inductor pin 2, so as to avoid pin displacement during forming.

[0041] 3) Using a special bending tool (such as curved tweezers or small bending pliers), with the end edge of the pin positioning sidewall 451 as the bending reference position 452, bend the inductor pin 2 to the target shape along the preset direction; if multiple units are formed simultaneously, they can be operated in sequence from left to right or from right to left to avoid mutual interference.

[0042] 4) After bending one or more units, push the pin forming block 43 in the opposite direction to reset it along the slide groove 31, disengaging it from the inductor pin 2; then gently remove the formed inductor (e.g., Figure 7 , Figure 8 (As shown), check whether the angle, length and bending shape of inductor pin 2 meet the requirements;

[0043] 5) If you need to continue processing inductors of the same specifications, you can directly repeat the steps of "inductor positioning and placement - pressing - bending".

[0044] Advantages of this utility model:

[0045] This utility model uses the "body placement area 44 + open pin positioning channel 45" structure of the inductor positioning slot to fix the forming benchmark from the source: the body placement area 44 is adapted to the shape of the inductor to avoid displacement during forming; the side wall angle and extension length of the pin positioning channel 45 are preset with the pin opening angle and length respectively, and the end edge of the channel is clearly defined as the bending benchmark position 452. With the help of the pressure block, it is pressed and fixed, which completely solves the parameter deviation problem of traditional manual operation, ensures the consistency of pin size after forming, meets the welding adaptation requirements of high-requirement industries such as aerospace, and eliminates the risk of loose mounting and poor welding connection.

[0046] This invention utilizes a base 3 to deploy multiple sets of inductor pin forming units 4, enabling the simultaneous forming of multiple inductors. Compared to manual bending of each inductor individually, this method significantly improves efficiency. Furthermore, the forming process is simplified to a standardized three-step operation: "discharge inductor - pressing block - bending." This eliminates the need for repeated measurements and adjustments, lowers the operational threshold, and reduces the processing time for a single inductor, making it perfectly suited for the mass production of small-volume, shell-less inductors.

[0047] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An inductor lead forming fixture, characterized in that, Includes a base and multiple sets of inductor pin forming units disposed on the base; The inductor pin forming unit includes an inductor positioning slot and a pin forming pressure block adapted thereto; the inductor positioning slot has a body placement area in the middle that is adapted to the outer contour of the inductor body; the inductor positioning slot forms open pin positioning channels on both sides corresponding to the body placement area, and the pin positioning channels extend radially along the body placement area; the included angle of the sidewall of the pin positioning channel is adapted to the preset opening angle of the target inductor pin, the length of the pin positioning channel along the extension direction is adapted to the preset length of the target inductor pin, and the end edge of the pin positioning channel away from the body placement area constitutes the bending reference position of the inductor pin; The pin forming block is used to push the inductor pin into the extension direction of the pin positioning channel after the inductor is placed in the body placement area, and press the inductor pin against the side wall of the pin positioning channel to fix the position of the bending reference position, while limiting the opening angle and length of the inductor pin to prevent the inductor pin from shifting during the forming process.

2. The inductor pin forming fixture according to claim 1, characterized in that, The inductor positioning slot is composed of a first slot seat and a second slot seat that are symmetrically arranged and spaced apart from each other; the middle of the opposite side of the first and second slot seats is provided with a semi-circular recess that is adapted to the outer contour of the inductor body, and the two semi-circular recesses cooperate to form the body placement area. The first and second card slots are located on both sides of the semi-circular recess, respectively forming pin positioning sidewalls that extend radially along the body placement area; the two pin positioning sidewalls on the same end cooperate to form the pin positioning channel.

3. The inductor pin forming fixture according to claim 2, characterized in that, The included angle between the pin positioning sidewalls on both sides is adapted to the preset opening angle of the target inductor pin, the length of the pin positioning sidewall along the extension direction is adapted to the preset length of the target inductor pin, and the end edge of the pin positioning sidewall away from the semi-circular recess constitutes the bending reference position of the inductor pin.

4. The inductor pin forming fixture according to claim 1, characterized in that, The two pin forming blocks are respectively set to the pin positioning channels on both sides. The base is respectively recessed to form a sliding groove corresponding to the pin forming blocks on both sides. The bottom of the pin forming blocks on both sides slides in the sliding groove and can slide to the corresponding pin positioning channel through the sliding groove.

5. The inductor pin forming fixture according to claim 1, characterized in that, The shape of the end of the pin forming block near the pin positioning channel is adapted to the shape of the pin positioning channel.

6. The inductor pin forming fixture according to claim 1, characterized in that, The number of inductor pin forming units is 3 sets. The 3 sets of inductor pin forming units are arranged in a row on the base and spaced apart. The 3 sets of inductor pin forming units can be adapted to inductor pin forming of the same or different specifications.

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