A fixing structure for a terminal and a mold

Abstract

The utility model relates to the technical field of terminal's fixed technology discloses a kind of fixing structure and mould suitable for terminal, including mould, the surface of mould is equipped with several moulds, the inner wall of mould is equipped with insert, the inner wall of insert is inserted with several terminal bodies, the inner wall of insert is equipped with limiting structure, the limiting structure includes L-shaped plate, the inner wall of insert is inserted in L-shaped plate, the surface of L-shaped plate is fixedly connected with several bronze spring leafs, the both sides of L-shaped plate are equipped with limiting hole, the both sides of insert are inserted with bolt, the size of bolt is compatible with the size of limiting hole, the vertical section of bronze spring leaf is in undulating shape, the fixing structure of this terminal, by setting limiting structure, reach the stable fixation of realization to terminal body, avoid terminal body from falling off from insert in processing process, and then guarantee the stability and yield of terminal body production.

Description

Technical Field

[0001] This utility model relates to the field of terminal fixing technology, specifically to a fixing structure and mold suitable for terminals. Background Technology

[0002] When processing metal terminals, they need to be fixed in the mold for injection molding. During this process, the metal terminals need to be precisely placed in the designated position of the mold cavity according to the design requirements. Then the mold is closed and injection molding is performed. The molten plastic fills the mold cavity under high pressure, wrapping the metal terminals. After cooling and solidification, a solid integrated structure is formed. This processing not only requires accurate terminal positioning, but also ensures that the terminals do not deform, shift, or have their plating damaged under the high temperature and high pressure environment of injection molding, thereby achieving a reliable combination between the metal terminals and the plastic parts.

[0003] During the manual placement of metal terminals, a certain gap is usually reserved in the mold insert to avoid scratching the precision metal terminals. However, although this gap setting protects the surface quality of the terminals, it reduces their assembly stability. When the terminals are inserted into the insert, due to the lack of sufficient friction and fixing strength, they are easy to fall off under slight vibration or external force, resulting in frequent defective products with missing metal terminals on the production line. This not only affects the functional integrity of the product, but also increases rework and quality inspection costs, and seriously reduces production efficiency and yield. To address this, we propose a fixing structure and mold suitable for terminals. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing structure and mold suitable for terminals, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixing structure and mold suitable for terminals, comprising a mold, wherein a plurality of mold cores are mounted on the surface of the mold, an insert is mounted on the inner wall of the mold cores, a plurality of terminal bodies are inserted into the inner wall of the insert, a limiting structure is provided on the inner wall of the insert, the limiting structure includes an L-shaped plate, the L-shaped plate is inserted into the inner wall of the insert, a plurality of bronze springs are fixedly connected to the surface of the L-shaped plate, limiting holes are opened on both sides of the L-shaped plate, and pins are inserted into both sides of the insert, the size of the pins being adapted to the size of the limiting holes.

[0006] The effect achieved by the above components is as follows: by setting a limiting structure, the terminal body is stably fixed, preventing the terminal body from falling out of the insert during processing, thereby ensuring the stability and yield of terminal body production.

[0007] Preferably, the vertical cross-section of the bronze shrapnel is wavy.

[0008] The effect achieved by the above components is that the wavy bronze spring can increase the elastic deformation path, disperse stress concentration points, and reduce fatigue risk.

[0009] Preferably, the bronze springs are all curved surfaces attached to one side of the terminal body.

[0010] The effect achieved by the above components is that the side of the bronze spring that fits against the terminal body is curved, which can fit tightly against the terminal surface, further improving the stability of clamping and reducing terminal shaking.

[0011] Preferably, the surface of the bronze spring is provided with a plurality of storage grooves, and the surface of the bronze spring is provided with a plurality of flow grooves, the flow grooves being connected to the storage grooves, and the inner wall of the storage grooves being coated with grease.

[0012] The effect achieved by the above components is as follows: Lubricating grease is applied to the storage groove on the surface of the bronze spring, and the flow groove is connected to the storage groove. When the terminal is inserted or removed, the lubricating grease can be evenly distributed to the surface of the bronze spring and the terminal in contact through the flow groove, reducing friction. This can protect the terminal plating from damage, reduce the wear of the bronze spring, and extend the service life of the structure.

[0013] Preferably, the surface of the bronze spring is provided with a plurality of rectangular holes, and the inner wall of the rectangular holes is provided with two limiting arms, both of which are fixedly connected to the surface of the L-shaped plate.

[0014] The effect achieved by the above components is that when the bronze spring is deformed, the limiting arm will slide in the rectangular hole, which can limit the deformation range of the bronze spring, prevent excessive deformation from causing a decrease in clamping force or damage, and further enhance the limiting effect on the terminal body.

[0015] Preferably, the insert has circular grooves on both sides, the end of the pin away from the insert is located in the circular groove, and the end of the pin away from the insert is fixedly connected to a pull rod.

[0016] The effect achieved by the above components is that the pin and the pull rod will be completely inserted into the groove, and the groove will store the pin and the pull rod, thereby preventing them from being exposed and affecting the insertion of the insert into the mold core.

[0017] Preferably, a spring is fitted onto the arc surface of the pin, and the two ends of the spring are fixedly connected to the pin and the inner wall of the circular groove, respectively.

[0018] The effect achieved by the above components is that the spring force keeps the pin inserted into the limiting hole, preventing the pin from coming out of the limiting hole due to shaking.

[0019] Preferably, the present invention also provides a mold including the fixing structure for terminals as described above, wherein the terminal body is installed in the insert on the surface of the mold through the fixing structure, and the terminal will not fall off during processing.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model, by setting a limiting structure, achieves the following: after the terminal body is inserted into the insert, the bronze spring clip clamps the terminal body by installing an L-shaped plate and using pins and springs to fix it. During the processing, this ensures the stability of the terminal body and prevents it from falling out of the insert, thereby ensuring the stability and yield of the terminal body production. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the insert in this utility model;

[0024] Figure 3 This is a schematic diagram of the disassembled structure of the mold core of this utility model;

[0025] Figure 4 This is a schematic diagram of the limiting structure and terminal body of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the pin of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the bronze spring in this utility model.

[0028] In the diagram: 1. Mold; 2. Mold core; 3. Insert; 4. Terminal body; 5. Limiting structure; 501. L-shaped plate; 502. Bronze spring; 503. Limiting hole; 504. Circular groove; 505. Pin; 506. Arc-shaped surface; 507. Storage groove; 508. Flow groove; 509. Rectangular hole; 510. Limiting arm; 511. Spring; 512. Pull rod. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-3This utility model provides a technical solution: a fixing structure and mold suitable for terminals, including a mold 1, a plurality of mold cores 2 are installed on the surface of the mold 1, an insert 3 is installed on the inner wall of the mold core 2, a plurality of terminal bodies 4 are inserted into the inner wall of the insert 3, and a limiting structure 5 is provided on the inner wall of the insert 3. The limiting structure 5 includes an L-shaped plate 501, which is inserted into the inner wall of the insert 3. A plurality of bronze spring pieces 502 are fixedly connected to the surface of the L-shaped plate 501. Limiting holes 503 are opened on both sides of the L-shaped plate 501, and pins 505 are inserted on both sides of the insert 3. The size of the pins 505 is adapted to the size of the limiting holes 503. By setting the limiting structure 5, the terminal bodies 4 are stably fixed, and the terminal bodies 4 are prevented from falling out of the insert 3 during the processing, thereby ensuring the stability and yield of the terminal body production.

[0031] Reference Figure 4-6As shown in this embodiment: the vertical cross-section of the bronze spring 502 is wavy. The wavy bronze spring 502 can increase the elastic deformation path, disperse stress concentration points, and reduce fatigue risk. The bronze spring 502 is attached to one side of the terminal body 4 with an arc-shaped surface 506. The arc-shaped surface 506 of the bronze spring 502 attached to the terminal body 4 can fit tightly with the terminal surface, further improving the clamping stability and reducing terminal shaking. The surface of the bronze spring 502 has several storage slots 507 and several flow slots 508. The flow slots 508 are connected to the storage slots 507. The inner wall of the storage slots 507 is coated with grease. When the terminal is inserted or removed, the grease can be evenly distributed to the surface of the bronze spring 502 that contacts the terminal through the flow slots 508, reducing friction. This can protect the terminal plating from damage and reduce the wear of the bronze spring 502, thus extending the service life of the structure. The surface of the bronze spring 502 has several rectangular holes 509. Two limiting arms 510 penetrate the inner wall of each rectangular hole 509. Both limiting arms 510 are fixedly connected to the surface of the L-shaped plate 501. When the bronze spring 502 deforms, the limiting arms 510 slide within the rectangular holes 509, limiting the deformation range of the bronze spring 502 and preventing excessive deformation that could lead to a decrease in clamping force or damage. This also further enhances the limiting effect on the terminal body 4. Both sides of the insert 3 have circular grooves 504. The end of the pin 505 furthest from the insert 3 is located within the circular groove 504. A pull rod 512 is fixedly connected to the end of the pin 505 furthest from the insert 3. The pin 505 and pull rod 512 completely enter the groove, thus storing the pin 505 and pull rod 512 and preventing them from being exposed and affecting the insertion of the insert 3 into the mold core 2. A spring 511 is fitted onto the arc surface of the pin 505. The two ends of the spring 511 are fixedly connected to the pin 505 and the inner wall of the circular groove 504, respectively. The elastic force of the spring 511 keeps the pin 505 inserted into the limiting hole 503, preventing the pin 505 from coming out of the limiting hole 503 due to shaking.

[0032] Referring to Figure 1, specifically, this utility model also provides a mold 1 including the above-mentioned fixing structure for terminals. The terminal body 4 is installed in the insert 3 on the surface of the mold 1 through the fixing structure, so that the terminal will not fall off during processing.

[0033] Working principle: When fixing the terminal body 4, first pull the pull rod 512. The movement of the pull rod 512 will drive the pin 505 to move. When the pin 505 moves, the spring 511 will be stretched. When the pin 505 moves to the appropriate position, the L-shaped plate 501 is placed into the insert 3. Then, the pin 505 is released. The pin 505 will be inserted into the limiting holes 503 on both sides of the insert 3 by the force of the spring 511. The pin 505 and the pull rod 512 will be completely inserted into the groove. The groove can store the pin 505 and the pull rod 512, thereby preventing them from being exposed and affecting the insert. The function of inserting into the mold core 2 is that the spring 511 is sleeved on the arc surface of the pin 505, with both ends fixed to the pin 505 and the inner wall of the circular groove 504 respectively. The elastic force of the spring 511 keeps the pin 505 inserted into the limiting hole 503, thereby fixing the L-shaped plate 501 and ensuring the stability of the L-shaped plate 501. This prevents the L-shaped plate 501 from shaking out of the insert 3 due to vibration or other factors during injection molding. Then, grease is applied to the storage groove 507 on the surface of the bronze spring sheet 502. The flow groove 508 is connected to the storage groove 507, allowing the grease to flow through the flow groove 508 when the terminal is inserted or removed. The bronze springs 502 are evenly distributed on the surface of the contact point between the bronze springs 502 and the terminal, reducing friction. This protects the terminal plating from damage and reduces wear on the bronze springs 502, extending the structural lifespan. After preparation, the terminal body 4 is inserted into the insert 3. The bronze springs 502 on the surface of the L-shaped plate 501 will adhere to the terminal body 4, generating clamping force through elastic deformation to prevent the bronze springs 502 from detaching from the insert 3. The side of the bronze springs 502 that adheres to the terminal body 4 is an arc-shaped surface 506, which can fit tightly against the terminal surface, further improving clamping stability and reducing friction. When the terminal wobbles, the wavy bronze spring 502 can increase the elastic deformation path, disperse stress concentration points, and reduce fatigue risk. When the bronze spring 502 clamps the terminal body 4, the bronze spring 502 will deform. When the bronze spring 502 deforms, the limiting arm 510 will slide in the rectangular hole 509, which can limit the deformation range of the bronze spring 502 and prevent excessive deformation from causing a decrease in clamping force or damage. At the same time, it further enhances the limiting effect on the terminal body 4. The above operations enable the terminal body 4 to be stably installed in the insert 3, preventing the terminal body 4 from falling out of the insert 3 during processing.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing structure suitable for terminals, comprising a mold (1), wherein a plurality of mold cores (2) are mounted on the surface of the mold (1), an insert (3) is mounted on the inner wall of the mold cores (2), a plurality of terminal bodies (4) are inserted into the inner wall of the insert (3), and a limiting structure (5) is provided on the inner wall of the insert (3), characterized in that: The limiting structure (5) includes an L-shaped plate (501), which is inserted into the inner wall of the insert (3). Several bronze spring pieces (502) are fixedly connected to the surface of the L-shaped plate (501). Limiting holes (503) are opened on both sides of the L-shaped plate (501). Pins (505) are inserted on both sides of the insert (3). The size of the pins (505) is adapted to the size of the limiting holes (503).

2. The fixing structure suitable for terminals according to claim 1, characterized in that: The vertical cross-section of the bronze shrapnel (502) is wavy.

3. The fixing structure suitable for terminals according to claim 1, characterized in that: The bronze spring (502) is attached to one side of the arc-shaped surface (506) of the terminal body (4).

4. A fixing structure suitable for terminals according to claim 1, characterized in that: The surface of the bronze spring (502) is provided with a plurality of storage slots (507), and the surface of the bronze spring (502) is provided with a plurality of flow slots (508). The flow slots (508) are connected to the storage slots (507), and the inner wall of the storage slots (507) is coated with grease.

5. A fixing structure suitable for terminals according to claim 1, characterized in that: The surface of the bronze spring (502) is provided with a number of rectangular holes (509), and the inner wall of the rectangular holes (509) is penetrated by two limiting arms (510), and the two limiting arms (510) are fixedly connected to the surface of the L-shaped plate (501).

6. A fixing structure suitable for terminals according to claim 1, characterized in that: Both sides of the insert (3) are provided with circular grooves (504), and the end of the pin (505) away from the insert (3) is located in the circular groove (504). The end of the pin (505) away from the insert (3) is fixedly connected to a pull rod (512).

7. A fixing structure suitable for terminals according to claim 1, characterized in that: The arc surface of the pin (505) is fitted with a spring (511), and the two ends of the spring (511) are fixedly connected to the inner wall of the pin (505) and the circular groove (504), respectively.

8. A mold (1) comprising the fixing structure as described in any one of claims 1-7.

Images