Electrode bending jig

Abstract

The utility model discloses a kind of electrode bending fixture, it is related to mechanical jig technical field.The jig includes bearing table, limit block, bending structure and poking structure;The limit block is set on the bearing table, for limiting to be bent module is positioned;The bending structure includes bending bar and bearing seat, the bearing seat is fixedly set on the bearing table, for supporting the bending bar;The poking structure is connected with the bearing table and the bending bar respectively, when poking the poking structure, the bending bar is rotated on the bearing seat under the action of the poking structure, the electrode of the to-be-bent module limited by the limit block is bent.The utility model structure is simple, save time and labour in operating process, can improve bending efficiency while guaranteeing bending quality.

Description

Technical Field

[0001] This utility model relates to the field of mechanical jig technology, and in particular to an electrode bending jig. Background Technology

[0002] IGBT modules, or Insulated Gate Bipolar Transistor modules, are modular semiconductor products packaged by bridging IGBT (Insulated Gate Bipolar Transistor chips) and FWD (Freewheeling Diode chips) using a specific circuit. After encapsulation and top cover mounting, IGBT modules undergo electrode bending to facilitate subsequent soldering or other processing steps. Electrode bending requires that the height of each electrode group be consistent after bending, and that the electrode surface plating be intact and free of scratches. The quality of electrode bending has a significant impact on the module's appearance and subsequent use; therefore, precise electrode bending is a crucial process in IGBT module production.

[0003] Currently, there are two main solutions for bending electrodes: automated and manual. Automated solutions involve setting up an automated production line to bend the electrodes, but this is costly and requires redesigning fixtures for different product types. Manual solutions involve manual bending, which is time-consuming and labor-intensive, affecting both bending quality and efficiency. For small-scale companies, using an automated production line to bend electrodes would increase costs; therefore, manual bending is more commonly chosen. However, manual bending has several drawbacks.

[0004] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0005] Existing manual methods for bending electrodes are time-consuming and labor-intensive, resulting in low bending quality and efficiency. Utility Model Content

[0006] The purpose of this invention is to provide an electrode bending fixture to solve the technical problems of time-consuming and labor-intensive manual electrode bending, resulting in low bending quality and efficiency in existing technologies. The preferred technical solutions provided by this invention offer numerous advantages, which are detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides an electrode bending fixture, comprising: a support platform, a limiting block, a bending structure, and a turning structure;

[0009] The limiting block is disposed on the bearing platform and is used to limit the module to be bent.

[0010] The bending structure includes a bending rod and a bearing seat, wherein the bearing seat is fixedly mounted on the support platform to support the bending rod;

[0011] The actuating structure is connected to the support platform and the bending rod respectively. When the actuating structure is actuated, the bending rod rotates on the bearing seat under the action of the actuating structure, bending the electrode of the module to be bent that is limited by the limiting block.

[0012] Optionally, the two ends of the bent rod are cylindrical and are respectively connected to the bearing seat; the middle part of the bent rod is semi-circular.

[0013] Optionally, a protrusion is provided on the semi-circular planar portion in the middle of the bending rod, and the protrusion is used to contact the electrode of the module to be bent.

[0014] Optionally, a connecting hole is provided on the inner side of the end of the bending rod, and the actuating structure is connected to the bending rod through the connecting hole.

[0015] Optionally, the bending structure further includes limiting posts, which are disposed on the support platform and located on both sides of the bending rod; when the bending rod is rotated by the actuating structure, the limiting posts are used to limit the rotation angle of the bending rod.

[0016] Optionally, the actuating structure includes an elastic element and an actuating rod. The two ends of the elastic element are fixedly connected to the actuating rod and the support platform, respectively, and one end of the actuating rod is fixedly connected to the bending rod. Under the action of external force, the elastic element and the actuating rod cooperate to rotate the bending rod.

[0017] Optionally, the actuating lever is provided with a first fixing member, and the side of the support platform is provided with a second fixing member. The elastic member is fixedly connected to the actuating lever and the support platform through the first fixing member and the second fixing member.

[0018] Optionally, the elastic element is a spring.

[0019] Optionally, the limiting block is provided with a slot, which is used to adjust the placement angle of the limiting block on the support platform.

[0020] Optionally, at least two limit blocks are provided.

[0021] Implementing one of the above-described technical solutions of this utility model has the following advantages or beneficial effects:

[0022] The electrode bending fixture described in this utility model has a simple structure, saves time and effort during operation, and can improve bending efficiency while ensuring bending quality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort. In the drawings:

[0024] Figure 1 This is a first-view schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a second-view schematic diagram of the overall structure of an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the bending rod in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure in which the module to be bent is limited in the lateral direction by the first limiting block in this embodiment of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the electrode in the bending module in the present invention being bent in the longitudinal direction.

[0029] In the diagram: 1. Support platform; 11. Second fixing component; 2. Limiting block; 21. First limiting block; 22. Second limiting block; 3. Bending structure; 31. Bending rod; 311. Protrusion; 312. Connecting hole; 32. Bearing seat; 33. Limiting post; 331. First limiting post; 332. Second limiting post; 4. Actuating structure; 41. Elastic component; 42. Actuating rod; 43. First fixing component; 5. Module to be bent. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, various exemplary embodiments described below will be referenced to the accompanying drawings, which form part of the exemplary embodiments, illustrating various exemplary embodiments that may be adopted to implement this utility model. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. It should be understood that they are merely examples of processes, methods, and apparatuses consistent with some aspects of this utility model disclosed as detailed in the appended claims, and other embodiments may be used, or structural and functional modifications may be made to the embodiments listed herein without departing from the scope and spirit of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," etc., indicate the orientation or positional relationship based on 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 referred element must have a specific orientation, or be constructed and operated in a specific orientation. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. The term "multiple" means two or more. The terms "connected" and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, communication connections, direct connections, indirect connections through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more of the related listed items. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] To illustrate the technical solution described in this utility model, specific embodiments are described below, showing only the parts related to the embodiments of this utility model.

[0033] Example 1:

[0034] like Figures 1-5 As shown, this utility model provides an electrode bending fixture, including: a support platform 1, a limiting block 2, a bending structure 3, and a toggle structure 4; the limiting block 2 is disposed on the support platform 1 and is used to limit the bending module 5; the bending structure 3 includes a bending rod 31 and a bearing seat 32, the bearing seat 32 is fixedly disposed on the support platform 1 and is used to support the bending rod 31; the toggle structure 4 is connected to the support platform 1 and the bending rod 31 respectively, and when the toggle structure 4 is toggle, the bending rod 31 rotates on the bearing seat 32 under the action of the toggle structure 4, and bends the electrode of the bending module 5 limited by the limiting block 2.

[0035] Specifically, such as Figure 1 , Figure 4 , Figure 5 As shown, the support platform 1 is the basic component of the entire fixture, providing a platform for the installation and support of the limiting block 2, bending structure 3, and actuating structure 4. The limiting block 2 is installed on the support platform 1 to limit the position of the module 5 to be bent, ensuring that the position of the module 5 to be bent is fixed during the bending process, preventing the module 5 to be bent from moving or shaking, so as to ensure the accuracy and stability of the bending operation.

[0036] like Figure 1As shown, the bending structure 3 includes a bending rod 31 and a bearing seat 32. The bearing seat 32 is fixedly mounted on the support platform 1 to support the bending rod 31 and ensure its stability during rotation. The bending rod 31 is movably connected to the bearing seat 32 and can rotate flexibly on the bearing seat 32 under the action of the actuating structure 4. The actuating structure 4 is connected to both the support platform 1 and the bending rod 31. When the operator actuates the actuating structure 4, the actuating structure 4 will drive the bending rod 31 to rotate on the bearing seat 32. Subsequently, the bending rod 31 will contact the electrode on the module 5 to be bent, which is limited by the limiting block 2, to bend the electrode of the module 5 to be bent.

[0037] The electrode bending fixture described in this embodiment has a simple structure, saves time and effort during operation, and can improve bending efficiency while ensuring bending quality.

[0038] As an optional implementation method, such as Figure 3 As shown, the two ends of the bending rod 31 are cylindrical and are connected to the bearing seat 32 respectively; the middle part of the bending rod 31 is semi-circular. A protrusion 311 is provided on the flat part of the semi-circular part of the bending rod 31, and the protrusion 311 is used to contact the electrode of the module 5 to be bent.

[0039] Specifically, such as Figures 1-2 As shown, both ends of the bent rod 31 are connected to the bearing seats 32. To facilitate the rotation of the bent rod 31 on the bearing seats 32, the two ends of the bent rod 31 are cylindrical. In this embodiment, it is preferable to provide two bearing seats 32 to facilitate the connection of the bent rod 31 and to support and position it. Of course, the bearing seats 32 can also be provided according to the actual situation, such as three or four, with the extra bearing seats placed in the middle of the bent rod 31. If three or four bearing seats are provided, the corresponding parts of the bent rod 31 also need to be cylindrical to facilitate the connection with the bearing seats 32.

[0040] like Figure 3 As shown, the middle part of the bending rod 31 is semi-circular. The semi-circular shape is designed to adapt to the spatial layout of the module 5 to be bent, making it easier to bend the upper electrode of the module 5 to be bent.

[0041] Furthermore, a protrusion 311 is provided on the semi-circular flat portion of the bent rod 31, such as... Figure 3As shown. The function of the protrusions 311 is to ensure direct contact between the protrusions and the electrodes of the module to be bent during bending, achieving a tight fit and improving the accuracy and stability of the electrodes during the bending process, thus preventing electrode misalignment or damage. Furthermore, the protrusions 311 make the bending process smoother and reduce operational difficulty. The number of protrusions 311 matches the number of limit blocks 2, and their positions also correspond.

[0042] As an optional implementation method, such as Figure 1 , Figure 2 , Figure 5 As shown, the bending structure 3 also includes limiting posts 33, which are disposed on the support platform 1 and located on both sides of the bending rod 31. When the bending rod 31 is rotated by the actuating structure 4, the limiting posts 33 are used to limit the rotation angle of the bending rod 31. Specifically, in this embodiment, the limiting posts 33 are preferably two, namely the first limiting post 331 and the second limiting post 332.

[0043] like Figure 2 , Figure 5 As shown, the first limiting post 331 and the second limiting post 332 are located on both sides of the bending rod 31, one on the front side of the bending rod 31 and the other on the rear side of the bending rod 31.

[0044] The function of the first limiting post 331 is as follows: When force is applied to the actuating structure 4, the bending rod 31 rotates, and the protrusion 311 contacts the electrode on the module 5 to be bent. After the protrusion 311 contacts the electrode, the bending rod 31 continues to press down under the force of the actuating structure 4 to bend the electrode. Then, if force continues to be applied to the actuating structure 4, the first limiting post 331 will abut against the flat part of the bending rod 31, limiting the rotation angle of the bending rod 31. Even if the operator continues to apply force to the actuating structure 4, the bending rod 31 will not continue to press down, thus protecting the module 5 to be bent and the electrode on the module 5. Furthermore, the setting of the first limiting post 331 can unify the bending radius of the bending rod 31, ensuring that the bending angle is consistent each time, improving production efficiency and yield.

[0045] The function of the second limiting post 332 is as follows: After bending is completed, the actuating structure 4 will spring back. When the actuating structure 4 springs back, the second limiting post 332 will abut against the back of the bending rod 31, preventing the bending rod 31 from springing back excessively and ensuring that the bending rod 31 stays in a position convenient for the next operation. In addition, the second limiting post 332 can also reduce the wobbling of the bending rod 31 to a certain extent, enhance the stability of the entire fixture, and further improve the bending accuracy and efficiency.

[0046] In this embodiment, the first limiting post 331 and the second limiting post 332 limit the rotation angle of the bending rod 31, and at the same time facilitate the control of the toggle structure 4, and protect the bending module 5 and the electrodes on the bending module 5.

[0047] As an optional implementation method, such as Figure 2 As shown, the actuating structure 4 includes an elastic element 41 and an actuating rod 42. Both ends of the elastic element 41 are fixedly connected to the actuating rod 42 and the support platform 1, respectively. One end of the actuating rod 42 is fixedly connected to the bending rod 31. Under external force, the elastic element 41 and the actuating rod 42 cooperate to rotate the bending rod 31. A first fixing member 43 is provided on the actuating rod 42, and a second fixing member 11 is provided on the side of the support platform 1. The elastic element 41 is fixedly connected to the actuating rod 42 and the support platform 1 through the first fixing member 43 and the second fixing member 11.

[0048] Specifically, such as Figure 2 As shown, one end of the elastic element 41 is connected to the actuating rod 42 via the first fixing member 43, and the other end is connected to the support platform 1 via the second fixing member 11. The arrangement of the first fixing member 43 and the second fixing member 11 not only ensures a stable connection between the elastic element 41, the actuating rod 42, and the support platform 1. In this embodiment, the elastic element 41 is preferably a spring.

[0049] A connecting hole 312 is provided on the inner side of the end of the bending rod 31. The actuating rod 42 in the actuating structure 4 is connected to the bending rod 31 through the connecting hole 312. The connection hole 312 ensures that the actuating rod 42 can be stably and accurately connected to the bending rod 31, guaranteeing that the bending rod 31 can rotate according to a predetermined trajectory and angle during the bending process. Furthermore, in practical applications, the fit between the connecting hole 312 and the actuating structure 4 ensures the accuracy and consistency of electrode bending.

[0050] More specifically, such as Figures 4-5 As shown, when the operator applies force to the actuating lever 42, the lever 42 moves, causing the bending lever 31 to rotate, while the elastic element 41 is compressed. When the operator releases the lever 42, the elastic element 41 returns to its initial state, causing the bending lever 31 to also return to its initial state. In this embodiment, the deformation process of the elastic element 41 not only provides sufficient displacement space for the actuating lever 42, but also ensures that the actuating lever 42 can quickly return to its initial position after the external force is removed through its restoring force. In this embodiment, the elastic element 41, the actuating lever 42, and the bending lever 31 use the lever principle to rotate the bending lever 31, bending the electrode in the module 5 to be bent.

[0051] As an optional implementation, the limiting block 2 is provided with a slot (not shown in the figure) for adjusting the placement angle of the limiting block 2 on the support platform 1. Specifically, since there are multiple types of modules 5 to be bent, slots are provided on the limiting block 2 to allow operators to adjust the placement angle of the limiting block 2 on the support platform 1 within a certain range, in order to accommodate the bending requirements of electrodes in modules of different specifications or shapes. The slots not only provide flexible angle adjustment space for the limiting block 2, but also ensure the stability of the limiting block 2 after adjustment, preventing displacement or loosening during bending. By precisely adjusting the angle of the limiting block 2, operators can more effectively control the bending angle and shape of the electrodes, improving the accuracy and consistency of bending.

[0052] In addition, depending on the actual situation of the module 5 to be bent, shims can be added or replaced on the limit block 2 to adjust the height of the limit block 2, so as to adapt to the bending requirements of electrodes of different specifications or shapes.

[0053] As an optional implementation, at least two limiting blocks 2 are provided. Specifically, since the module to be bent 5 has electrodes in both the transverse and longitudinal directions, two limiting blocks 2 are provided in this embodiment, including a first limiting block 21 and a second limiting block 22, as shown below. Figures 4-5 As shown, the first limiting block 21 and the second limiting block 22 are respectively disposed at different positions on the support platform 1. The function of the first limiting block 21 is to limit the bending module 5 in the lateral direction when the electrode in the lateral direction of the bending module 5 needs to be bent. The function of the second limiting block 22 is to limit the bending module 5 in the longitudinal direction when the electrode in the longitudinal direction of the bending module 5 needs to be bent. The setting of the first limiting block 21 and the second limiting block 22 can ensure its stability during the bending process.

[0054] It should be noted that, as Figures 3-5 As shown, the number and position of the protrusions 311 can correspond to the limiting block 2. For example, when it is necessary to bend the electrode in the lateral direction of the module 5 to be bent, it is limited by the first limiting block 21. At this time, a protrusion 311 is provided at the corresponding position on the bending rod 31 corresponding to the first limiting block 21 to facilitate bending the electrode in the lateral direction of the module 5 to be bent.

[0055] In this embodiment, the module 5 to be bent can be an IGBT module whose electrodes need to be bent after production.

[0056] The embodiment is merely a special case and does not indicate that this utility model is implemented in such a way.

[0057] The above description is merely a preferred embodiment of the present utility model. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present utility model. Furthermore, under the teachings of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present utility model.

Claims

1. An electrode bending fixture, characterized in that, include: The support platform (1), the limiting block (2), the bending structure (3), and the actuating structure (4) are included. The limiting block (2) is disposed on the bearing platform (1) and is used to limit the module (5) to be bent. The bending structure (3) includes a bending rod (31) and a bearing seat (32). The bearing seat (32) is fixedly mounted on the support platform (1) to support the bending rod (31). The actuating structure (4) is connected to the bearing platform (1) and the bending rod (31) respectively. When the actuating structure (4) is actuated, the bending rod (31) rotates on the bearing seat (32) under the action of the actuating structure (4) and bends the electrode of the module (5) to be bent that is limited by the limiting block (2).

2. The electrode bending fixture according to claim 1, characterized in that, The two ends of the bent rod (31) are cylindrical and are respectively connected to the bearing seat (32); the middle part of the bent rod (31) is semi-circular.

3. The electrode bending fixture according to claim 2, characterized in that, A protrusion (311) is provided on the semi-circular plane in the middle of the bending rod (31), and the protrusion (311) is used to contact the electrode of the module (5) to be bent.

4. The electrode bending fixture according to claim 1, characterized in that, A connecting hole (312) is provided on the inner side of the end of the bending rod (31), and the actuating structure (4) is connected to the bending rod (31) through the connecting hole (312).

5. The electrode bending fixture according to claim 1, characterized in that, The bending structure (3) also includes a limiting post (33), which is disposed on the bearing platform (1) and located on both sides of the bending rod (31); when the bending rod (31) is driven to rotate by the actuating structure (4), the limiting post (33) is used to limit the rotation angle of the bending rod (31).

6. The electrode bending fixture according to claim 1, characterized in that, The actuating structure (4) includes an elastic element (41) and an actuating rod (42). The two ends of the elastic element (41) are fixedly connected to the actuating rod (42) and the support platform (1) respectively. One end of the actuating rod (42) is fixedly connected to the bending rod (31). The elastic element (41) and the actuating rod (42) cooperate with each other under the action of external force to make the bending rod (31) rotate.

7. The electrode bending fixture according to claim 6, characterized in that, The actuating lever (42) is provided with a first fixing member (43), and the side of the support platform (1) is provided with a second fixing member (11). The elastic member (41) is fixedly connected to the actuating lever (42) and the support platform (1) through the first fixing member (43) and the second fixing member (11).

8. The electrode bending fixture according to claim 6, characterized in that, The elastic element (41) is a spring.

9. The electrode bending fixture according to any one of claims 1-8, characterized in that, The limiting block (2) is provided with a slot, which is used to adjust the placement angle of the limiting block (2) on the support platform (1).

10. The electrode bending fixture according to any one of claims 1-8, characterized in that, The limiting block (2) is provided in at least two.

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