A flat coil bending jig
Patent Information
- Application Number
- CN202521367828.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-06-30
AI Technical Summary
没有可以一步到位的弯脚装置，在实际的生产加工过程中，人工费用高昂且产品的一致性较差，生产效率低下
[0020]本实用新型提供扁平线圈的弯脚治具，通过第一折弯机构和第二折弯机构的实现端部引脚折弯2次，每次折弯90°，无需改变扁平线圈的位置，实现一步到位弯折出呈“L”型的端部引脚，能够提高产品的一致性，降低次品率。此外，只需人工将扁平线圈放置在放置平台上以及取下扁平线圈即可，无需手动弯折端部引脚，减少人工操作，降低工人的劳动强度，同时也降低因人工疲劳等因素导致的操作失误风险。
Smart Images
Figure CN224642190U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coil processing equipment technology, and in particular to a bending jig for flat coils. Background Technology
[0002] After the flat coil is wound into a loop, end leads extend from both ends of the coil. For example... Figure 5 As shown, in order to facilitate the connection of flat coils to the circuit, some existing flat coils have their top end pins bent into an L-shape, requiring two bends, each bend being 90°.
[0003] Traditional flat coil forming and bending often uses simple tools such as flat-nose pliers or manual bending. Manual operation is not only inefficient, but also difficult to precisely control the force and technique, resulting in poor structural consistency and a high defect rate after product forming. At the same time, manual bending is difficult and physically demanding, and repeated bending can reduce the fatigue of the flat coil, making it prone to breakage and damage.
[0004] Some existing bending machines use cylinders to move pressure blocks to bend the end leads, but they can only bend once. Therefore, in the production process of flat coils that require multiple bends, the bending process is divided into multiple stations. For example, the first station performs the first bending process on the coil, and the second station performs the second bending process. There is no bending device that can complete the process in one step. In actual production, labor costs are high, product consistency is poor, and production efficiency is low. Utility Model Content
[0005] The main purpose of this invention is to provide a bending fixture for flat coils, which can bend the end leads of flat coils in one step, reducing labor costs and improving production efficiency.
[0006] To achieve the above objectives, this utility model proposes a bending fixture for flat coils, used for bending the end leads of flat coils, comprising:
[0007] A placement platform for vertically placing flat coils; the placement platform is provided with clearance slots.
[0008] A first bending mechanism is disposed above the placement platform to bend the end pin located at the top of the flat coil vertically downward, such that the end pin at least partially passes through the clearance slot and is located below the placement platform.
[0009] A second bending mechanism is disposed below the placement platform to horizontally bend the end pin of the first bending mechanism along the direction away from the flat coil in the clearance slot.
[0010] Optionally, the placement platform is provided with an upright limiting plate located on one side of the first bending mechanism; the top wall of the limiting plate is provided with an upward-facing limiting notch.
[0011] Optionally, a limiting groove is provided on one side wall of the first bending mechanism near the limiting plate. The limiting groove extends in a vertical direction, and the two ends of the limiting groove are connected to a limiting notch and an avoidance through groove, respectively.
[0012] Optionally, the placement platform is provided with a positioning post, which is located on the side of the limiting plate away from the first bending mechanism.
[0013] Optionally, the placement platform is provided with a coil clamping mechanism to clamp the flat coil onto the placement platform.
[0014] Optionally, the first bending mechanism includes a first driving unit and a first rolling roller. The first rolling roller is located directly above the clearance groove. The first driving unit is connected to the first rolling roller to drive the first rolling roller to move up and down in the vertical direction.
[0015] Optionally, the first bending mechanism further includes a first connecting seat and two first limiting guide rods. The two first limiting guide rods are vertically arranged at intervals on both sides of the clearance groove. The first connecting seat is slidably engaged with the two first limiting guide rods. The first connecting seat is connected to the movable end of the first driving part. The first rolling wheel is rotatably disposed on the first connecting seat.
[0016] Optionally, the first connecting seat is provided with two spaced-apart stop posts, the first rolling roller is rotatably disposed between the two stop posts, the bottom end of the stop post is lower than the bottom end of the first rolling roller, and the stop post is located directly above both sides of the clearance groove.
[0017] Optionally, the second bending mechanism includes a second driving unit and a second rolling roller. The second rolling roller is disposed in the clearance groove and is slidably engaged with the clearance groove. The second driving unit is drivenly connected to the second rolling roller to drive the second rolling roller to move in the horizontal direction. The top of the second rolling roller is not higher than the top surface of the placement platform, and the initial position of the second rolling roller does not exceed the wall surface of the limiting plate near the first bending mechanism.
[0018] Optionally, the second bending mechanism further includes a second connecting seat and two second limiting guide rods. The second limiting guide rods are located below the placement platform, and the two second limiting guide rods are horizontally arranged at intervals on both sides of the clearance slot. The second connecting seat is slidably engaged with the two limiting guide rods. The second connecting seat is connected to the movable end of the second driving part, and the second rolling wheel is rotatably disposed on the second connecting seat.
[0019] The technical solution provided by this utility model can include the following beneficial effects:
[0020] This invention provides a bending fixture for flat coils. Through a first bending mechanism and a second bending mechanism, the end leads are bent twice, each time by 90°, without changing the position of the flat coil. This achieves a one-step bending of the end leads into an "L" shape, improving product consistency and reducing the defect rate. Furthermore, only manual placement and removal of the flat coil on the platform are required; manual bending of the end leads is unnecessary, reducing manual operation, lowering labor intensity, and minimizing the risk of operational errors due to human fatigue. Attached Figure Description
[0021] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of the bent-leg fixture of this utility model;
[0023] Figure 2 This is a schematic diagram of the structure of the placement platform for the bent-leg fixture of this utility model;
[0024] Figure 3 This is a schematic diagram of the first bending mechanism of the bending foot fixture of this utility model;
[0025] Figure 4 This is a schematic diagram of the second bending mechanism of the bending jig of this utility model;
[0026] Figure 5 This is a schematic diagram of the structure of the flat coil after bending according to this utility model.
[0027] In the attached diagram: 100 - placement platform, 110 - clearance slot, 120 - limiting plate, 121 - limiting notch, 122 - limiting groove, 130 - coil clamping mechanism, 131 - quick clamp, 132 - pressure block, 200 - first bending mechanism, 210 - first driving part, 220 - first rolling roller, 230 - first connecting seat, 231 - stop post, 240 - first limiting guide rod, 300 - second bending mechanism, 310 - second driving part, 320 - second rolling roller, 330 - second connecting seat, 340 - second limiting guide rod, 400 - flat coil, 410 - end pin. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0032] The following is combined Figures 1 to 5 This describes a bending fixture for a flat coil according to an embodiment of the present invention, used for bending the end pins 410 of a flat coil 400. Specifically, as shown... Figure 5In one embodiment, the flat coil 400 has two end leads 410 located at both ends of the flat coil 400. Before bending, the two end leads 410 extend horizontally and protrude from the end face of the flat coil 400, and the two end leads 410 do not overlap in the vertical direction. The bending fixture for the flat coil includes a placement platform 100, a first bending mechanism 200, and a second bending mechanism 300. The placement platform 100 is used to vertically place the flat coil 400; the placement platform 100 is provided with a clearance slot 110; specifically, the clearance slot 110 is a strip-shaped slot that runs from top to bottom, and the clearance slot 110 overlaps in the vertical direction with the end leads 410 at the top of the flat coil 400 to be bent. The first bending mechanism 200 is disposed above the placement platform 100 to vertically bend the end pin 410 located at the top of the flat coil 400 downwards, such that the end pin 410 at least partially passes through the clearance slot 110 and is located below the placement platform 100. The second bending mechanism 300 is disposed below the placement platform 100 to horizontally bend the end pin 410 after it has been bent by the first bending mechanism 200 along the clearance slot 110 away from the flat coil 400.
[0033] In practical use, a flat coil 400 is vertically placed on the placement platform 100. The first bending mechanism 200 is driven to bend the top end pin 410 of the coil downwards, so that the end pin 410 changes from a horizontal state to a downward bent state. After being bent by the first bending mechanism 200, the end pin 410 at least partially passes through the clearance slot 110 and is located below the placement platform 100. The second bending mechanism 300, located below the placement platform 100, bends the end pin 410 horizontally along the clearance slot 110 away from the flat coil 400, so that the end of the end pin 410 extends horizontally, thus bending the end pin 410 into an "L" shape. More specifically, the first bending mechanism 200 bends the end pin 410 at the top of the flat coil 400 vertically downwards and remains stationary. After the second bending mechanism 300 bends the end pin 410 of the flat coil 400, the first bending mechanism 200 and the second bending mechanism 300 reset, so that the flat coil 400 can be removed from the placement platform 100. The motion control of the first bending mechanism 200 and the second bending mechanism 300 can be executed by a controller, or it can be controlled by manual opening and closing. This utility model does not impose any specific limitations.
[0034] This invention provides a bending fixture for flat coils. Through a first bending mechanism 200 and a second bending mechanism 300, the end pin 410 is bent twice, each time by 90°, without changing the position of the flat coil 400. This achieves a one-step bending of the end pin 410 into an "L" shape. This improves product consistency and reduces the defect rate. Furthermore, only manual placement and removal of the flat coil 400 on the placement platform 100 are required; manual bending of the end pin 410 is unnecessary, reducing manual operation, lowering worker workload, and minimizing the risk of operational errors due to human fatigue.
[0035] As an optional embodiment, such as Figure 2 As shown, the placement platform 100 is provided with a vertically positioned limiting plate 120, which is located on one side of the first bending mechanism 200. The top wall of the limiting plate 120 is provided with an upward-facing limiting notch 121. In this embodiment, by setting the limiting plate 120 on the placement platform 100, the outer wall of the flat coil 400 abuts against the limiting plate 120 to limit its position, thereby preventing the flat coil 400 from being placed below the first bending mechanism 200 and thus preventing the first bending mechanism 200 from pressing down on the flat coil 400 body. In addition, this embodiment also provides a limiting notch 121 for the end pin 410 at the top of the flat coil 400 to pass through, which facilitates the positioning of the flat coil 400. Due to the setting of the limiting plate 120, the flat coil 400 is attached to the side wall of the limiting plate 120 when bending downwards, achieving a 90° bend without the bending angle being too large. After bending is completed, the flat coil 400 can be lifted upwards and removed from the placement platform 100.
[0036] More preferably, a positioning post can also be provided on the placement platform 100, the positioning post being located on the side of the limiting plate 120 away from the first bending mechanism 200. When placing the flat coil 400 on the placement platform 100, the flat coil 400 is fitted onto the positioning post, so as to facilitate the worker to place the flat coil 400 on the work station.
[0037] More specifically, a limiting groove 122 is provided on one side wall of the limiting plate 120 near the first bending mechanism 200. The limiting groove 122 extends vertically, and its two ends are correspondingly connected to a limiting notch 121 and an avoidance through groove 110. Thus, when the end pin 410 bends downward, the end pin 410 can be embedded in the limiting groove 122 for bending and positioning.
[0038] Preferably, the placement platform 100 is provided with a coil pressing mechanism 130 to press the flat coil 400 onto the placement platform 100. Specifically, the coil pressing mechanism 130 is composed of a pressing block 132 and a lifting drive component. The lifting drive component drives the pressing block 132 to descend downwards, so that the pressing block 132 presses down on the top of the flat coil 400, thereby securing the flat coil 400 on the placement platform 100. Specifically, the lifting drive component can be a cylinder, hydraulic cylinder, lead screw assembly, or other drive components. Of course, in other embodiments, the lifting drive component can also be a manually pressing structure, such as a quick-release mechanism 131.
[0039] As an optional embodiment, such as Figure 3 As shown, the first bending mechanism 200 includes a first driving unit 210 and a first rolling roller 220. The first rolling roller 220 is located directly above the clearance groove 110. The first driving unit 210 is connected to the first rolling roller to drive the first rolling roller 220 to move up and down in the vertical direction. In this embodiment, by bending the end pin 410 downwards with the first rolling roller 220, the friction between the first rolling roller 220 and the end pin 410 can be reduced to avoid damaging the surface of the end pin 410. The first driving unit 210 can be any linear drive component such as a cylinder, hydraulic cylinder, or lead screw assembly.
[0040] Furthermore, the first bending mechanism 200 also includes a first connecting seat 230 and two first limiting guide rods 240. The two first limiting guide rods 240 are vertically arranged at intervals on both sides of the clearance slot 110. The first connecting seat 230 is slidably engaged with the two first limiting guide rods 240, and the first connecting seat 230 is connected to the movable end of the first driving part 210. The first rolling wheel 220 is rotatably disposed on the first connecting seat 230. In this embodiment, the first limiting guide rods 240 restrict the downward sliding direction of the first connecting seat 230, ensuring that the first connecting seat 230 moves in the vertical direction. When placing the flat coil 400, the end pin 410 at the top of the flat coil 400 passes through the two first limiting guide rods 240 to achieve positioning, so that the end pin 410 can pass through the clearance slot 110 downward when bent downward.
[0041] Preferably, the first connecting seat 230 is provided with two spaced-apart stop posts 231, and the first rolling roller 220 is rotatably disposed between the two stop posts 231. The bottom end surface of the stop post 231 is lower than the bottom end of the first rolling roller 220, and the stop post 231 is located directly above both sides of the clearance groove 110. In this embodiment, after the first driving unit 210 drives the first connecting seat 230 to move downward, the stop post 231 will abut against the upper end surface of the placement platform 100 to achieve a stop. Since the bottom end surface of the stop post 231 is lower than the bottom end of the first rolling roller 220, it can prevent the first rolling roller 220 from being embedded in the clearance groove 110 and affecting the operation of the second bending mechanism.
[0042] As an optional embodiment, such as Figure 4 As shown, the second bending mechanism 300 includes a second driving part 310 and a second rolling roller 320. The second rolling roller 320 is disposed within the clearance groove 110 and slides in cooperation with the clearance groove 110. The second driving part 310 is drivenly connected to the second rolling roller to drive the second rolling roller 320 to move horizontally. The top end of the second rolling roller 320 is not higher than the top surface of the placement platform 100, and the initial position of the second rolling roller 320 does not exceed the wall surface of the limiting plate 120 near the first bending mechanism 200, so as to avoid obstructing the downward bending of the end pin 410. Specifically, preferably, the top end of the second rolling roller 320 is flush with the top end of the placement platform 100. In this way, the bent end pin 410 is on the same horizontal plane as the other end pin 410. In this embodiment, the second driving part 310 is disposed on the lower end surface of the placement platform 100. Specifically, the second driving part 310 can be any linear drive component such as a cylinder, hydraulic cylinder, or lead screw assembly.
[0043] More specifically, the second bending mechanism 300 further includes a second connecting seat 330 and two second limiting guide rods 340. The second limiting guide rods 340 are located below the placement platform 100, and the two second limiting guide rods 340 are horizontally arranged at intervals on both sides of the clearance slot 110. The second connecting seat 330 is slidably engaged with the two limiting guide rods. The second connecting seat 330 is connected to the movable end of the second driving part 310, and the second rolling wheel 320 is rotatably disposed on the second connecting seat 330. In this way, the horizontal sliding direction of the second connecting seat 330 is restricted by the second limiting guide rods 340, ensuring that the second connecting seat 330 is horizontally bent along the clearance slot 110 away from the flat coil 400, away from the end pin 410 after bending by the first bending mechanism 200.
[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.
Claims
1. A bending fixture for flat coils, used for bending the end leads of flat coils, characterized in that: include: A placement platform for vertically placing flat coils; the placement platform is provided with clearance slots. A first bending mechanism is disposed above the placement platform to bend the end pin located at the top of the flat coil vertically downward, such that the end pin at least partially passes through the clearance slot and is located below the placement platform. A second bending mechanism is disposed below the placement platform to horizontally bend the end pin of the first bending mechanism along the direction away from the flat coil in the clearance slot.
2. The bending fixture for a flat coil according to claim 1, characterized in that, The placement platform is provided with a vertically installed limiting plate, which is located on one side of the first bending mechanism; the top wall of the limiting plate is provided with an upward-facing limiting notch.
3. The bending fixture for a flat coil according to claim 2, characterized in that, The limiting plate is provided with a limiting groove on one side wall of the first bending mechanism. The limiting groove extends vertically, and the two ends of the limiting groove are connected to a limiting notch and an avoidance groove, respectively.
4. The bending fixture for a flat coil according to claim 2, characterized in that, The placement platform is equipped with a positioning post, which is located on the side of the limiting plate away from the first bending mechanism.
5. A bending fixture for a flat coil according to claim 4, characterized in that, The placement platform is equipped with a coil clamping mechanism, which is located above the positioning column to clamp the flat coil onto the placement platform.
6. A bending fixture for a flat coil according to claim 1, characterized in that, The first bending mechanism includes a first driving unit and a first rolling roller. The first rolling roller is located directly above the clearance groove. The first driving unit is connected to the first rolling roller in a transmission manner to drive the first rolling roller to move up and down in the vertical direction.
7. A bending fixture for a flat coil according to claim 6, characterized in that, The first bending mechanism further includes a first connecting seat and two first limiting guide rods. The two first limiting guide rods are vertically arranged at intervals on both sides of the clearance groove. The first connecting seat is slidably engaged with the two first limiting guide rods. The first connecting seat is connected to the movable end of the first driving part. The first rolling wheel is rotatably arranged on the first connecting seat.
8. A bending fixture for a flat coil according to claim 7, characterized in that, The first connecting seat is provided with two spaced-apart stop posts. The first rolling roller is rotatably disposed between the two stop posts. The bottom end of the stop post is lower than the bottom end of the first rolling roller. The stop post is located directly above both sides of the clearance groove.
9. A bending fixture for a flat coil according to claim 2, characterized in that, The second bending mechanism includes a second driving part and a second rolling roller. The second rolling roller is disposed in the clearance groove and is slidably engaged with the clearance groove. The second driving part is drivenly connected to the second rolling roller to drive the second rolling roller to move in the horizontal direction. The top of the second rolling roller is not higher than the top surface of the placement platform, and the initial position of the second rolling roller does not exceed the wall surface of the limiting plate near the first bending mechanism.
10. A bending fixture for a flat coil according to claim 9, characterized in that, The second bending mechanism further includes a second connecting seat and two second limiting guide rods. The second limiting guide rods are located below the placement platform, and the two second limiting guide rods are horizontally arranged at intervals on both sides of the clearance slot. The second connecting seat is slidably engaged with the two limiting guide rods. The second connecting seat is connected to the movable end of the second driving part, and the second rolling wheel is rotatably disposed on the second connecting seat.