A copper lug insert based on injection molding of automobile parts

Abstract

The utility model discloses a copper connecting piece insert based on automobile parts injection, related to automobile parts injection technology field, the utility model discloses an insert body, is provided with two insertion slot on the insert body, is provided with movable cavity in the insert body, the movable cavity is provided with two clamping plates of sliding in, two elastic members are fixedly arranged between each clamping plate and movable cavity inner wall, a plurality of lugs are fixedly arranged on the side away from the elastic member of each clamping plate, the clamping of copper connecting piece is replaced by the friction of the insertion slot inner wall and copper connecting piece through two clamping plates, thereby can prevent the unstable position of copper connecting piece when injection because of the abrasion of insertion slot inner wall caused by friction, increase the practical life of insert body, at the same time, the insert body prevents the automatic opening of clamping plate when on the workbench through the cooperation of push board and first spring, and the clamping plate is automatically clamped when taking up the insert body.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts injection molding technology, specifically to a copper connector insert based on automotive parts injection molding. Background Technology

[0002] In the field of automotive electronic components, speakers and audio equipment, as the core carriers of the overall vehicle acoustic experience, directly determine the sound quality output and equipment lifespan through the stability and durability of their internal electrical connections. Among them, copper connectors, as key connecting components for efficient current conduction, must not only bear the function of stable audio signal transmission but also be firmly embedded in the plastic substrate.

[0003] The copper connector insert in a car horn typically refers to a molded insert used to fix or support the copper connector.

[0004] Currently, the copper connectors for car horn brackets are typically inlaid using a traditional insert injection molding process. This involves first cleaning the copper connector's surface, then manually or mechanically placing it into the insert's hole, then placing the insert into the injection cavity, and finally injecting molten engineering plastic. The copper connector is then bonded to the substrate by the encapsulating force of the cooled and solidified plastic. After the mold is opened, the insert is separated from the copper connector.

[0005] In the existing technology, the positioning part of the copper contact is inserted into the slot of the insert. The stability of the copper contact is ensured by the tight contact between the inner wall of the slot and the copper contact. However, there is a lot of friction between the copper contact and the inside of the slot, which requires force to insert. After long-term use, the copper contact causes some wear to the inner wall of the slot, which makes it impossible for the inside of the slot to be tightly contacted with the copper contact. This can easily cause the copper contact to shift or even fall off during the placement of the insert and injection molding. Utility Model Content

[0006] The purpose of this invention is to provide a copper connector insert based on automotive parts injection molding, so as to solve the above-mentioned shortcomings in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a copper insert based on automotive parts injection molding, comprising an insert body, wherein two slots are provided on the insert body, and a movable cavity is provided inside the insert body; two clamping plates are slidably arranged inside the movable cavity, and two elastic elements are fixedly arranged between each clamping plate and the inner wall of the movable cavity, and multiple protrusions are fixedly arranged on the side of each clamping plate away from the elastic elements.

[0008] Preferably, each of the elastic elements is a first spring, and each of the protrusions is triangular.

[0009] Preferably, a push plate is slidably disposed on the insert body, and both sides of the push plate are set as inclined surfaces.

[0010] Preferably, a connecting plate is fixedly provided on the push plate, and a top rod is fixedly provided on the connecting plate, the top rod being slidably connected to the insert body.

[0011] Preferably, a pressure plate is fixedly provided at the end of the push rod away from the push plate, and a second spring is fixedly provided between the pressure plate and the insert body.

[0012] In the above technical solution, this utility model provides a copper connector insert based on automotive parts injection molding, which has the following beneficial effects: by using two clamping plates to clamp the copper connector instead of friction between the inner wall of the slot and the copper connector, it can prevent the copper connector from becoming unstable in position during injection molding due to wear of the inner wall of the slot caused by friction, thereby increasing the service life of the insert body. At the same time, the clamping plates automatically open when the insert body is on the worktable and automatically clamp when the insert body is picked up, thanks to the cooperation of the push plate and the first spring. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 A schematic diagram of the top rod provided in an embodiment of this utility model;

[0016] Figure 3 A schematic diagram of the structure of the clamp provided in the embodiment of this utility model;

[0017] Figure 4 A schematic diagram of the structure of the second spring provided in an embodiment of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the insert body inserted into the fixed mold according to an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Insert body; 2. Slot; 3. Movable cavity; 4. Clamping plate; 5. First spring; 6. Protrusion; 7. Push plate; 8. Connecting plate; 9. Push rod; 10. Second spring; 11. Pressure plate; 12. Copper connecting piece; 13. Fixed mold; 14. Cavity; 15. Lifting mechanism. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] Please see Figure 1-4 A copper connector insert based on automotive parts injection molding, the technical solution of this utility model includes an insert body 1, with two slots 2 on the insert body, and a movable cavity 3 inside the insert body 1; two clamping plates 4 are slidably arranged in the movable cavity 3, and two elastic members are fixedly arranged between each clamping plate 4 and the inner wall of the movable cavity 3, and multiple protrusions 6 are fixedly arranged on the side of each clamping plate 4 away from the elastic members; the two slots 2 of the insert body 1 are used to insert copper connectors 12, and the movable cavity 3 is opened in the insert body 1 near the slots 2. The two clamping plates 4 are brought closer to each other by the elastic members, and the two clamping plates 4 replace the inner wall of the slots 2 to clamp the copper connectors 12. The wall has a certain thickness. When in use, the insert body 1 is placed on the workbench. At this time, the two clamping plates 4 are a certain distance from the side wall of the slot 2. Then, the copper contact piece 12 is inserted into the corresponding slot 2. Part of the copper contact piece 12 is in the movable cavity 3. At this time, the clamping plate 4 does not contact the copper contact piece 12. The insert body 1 is picked up, the elastic element is reset, and each clamping plate 4 is pushed to move and tightly abut against the copper contact piece 12. The protrusion 6 and the slot 2 limit the two sides of each copper contact piece 12. Under the abutment of the clamping plate 4, the copper contact piece 12 can be prevented from displacing. When inserting the copper contact piece 12, the clamping plate 4 does not contact the copper contact piece 12, reducing the sliding between the clamping plate 4 and the copper contact piece 12.

[0023] Specifically, each elastic element is a first spring 5, and each protrusion 6 is triangular; each first spring 5 pushes the clamping plate 4 to come closer together and abut against each other. Each clamping plate 4 has four triangular protrusions 6, and the four protrusions 6 are in pairs, with the inclined surface of the protrusions 6 in the same group facing the inserted copper contact piece 12.

[0024] Specifically, a push plate 7 is slidably disposed on the insert body 1, and both sides of the push plate 7 are set as bevels; such as Figure 3 As shown, the push plate 7 is triangular and is located between two clamping plates 4. The inclined surfaces on both sides of the push plate 7 abut against the end sidewalls of the two clamping plates 4. When in use, the push plate 7 is pushed towards the slot 2. The inclined surfaces can push the clamping plates 4 on both sides to move away from the slot 2, thereby opening the space on both sides of the slot 2.

[0025] Specifically, a connecting plate 8 is fixedly mounted on the push plate 7, and a push rod 9 is fixedly mounted on the connecting plate 8. The push rod 9 is slidably connected to the insert body 1. The end of the push rod 9 away from the slot 2 protrudes from the insert body 1. A through hole for the push rod 9 to slide is opened in the insert body 1. The insert body 1 is made of metal and has a certain weight. When in use, the side of the insert body 1 away from the slot 2 is placed on the worktable. At this time, the end of the push rod 9 away from the push plate 7 abuts against the worktable, and the insert body 1 moves down and also abuts against the worktable, thereby causing the two clamping plates 4 to move towards the connecting plate 8, thereby opening the two clamping plates 4. Each of the first springs 5 ​​is compressed, and the copper contact piece 12 is inserted into the slot 2. When the insert body 1 is picked up again, each of the first springs 5 ​​returns to its original position, pushing the push plate 7 away from the slot 2, while the two clamping plates 4 clamp the copper contact piece 12.

[0026] Specifically, a pressure plate 11 is fixedly installed at the end of the push rod 9 away from the push plate 7, and a second spring 10 is fixedly installed between the pressure plate 11 and the insert body 1. The pressure plate 11 is pushed outward by the second spring 10, so that there is a certain distance between the pressure plate 11 and the insert body 1. At this time, the push plate 7 does not contact the clamping plate 4. When the insert body 1 is on the platform, the pressure plate 11 is pressed into the insert body 1, the second spring 10 is compressed, so that the push plate 7 pushes the two clamping plates 4 to both sides. When the insert body 1 is lifted, the second spring 10 causes the push plate 7 to quickly separate from the clamping plate 4, so that the clamping plate 4 quickly abuts against the copper contact piece 12.

[0027] Working principle: Combining Figure 2 and Figure 5 In use, the insert body 1 is placed on the worktable, and the two clamping plates 4 are opened by the pressure plate 11 abutting against the worktable. Then, the copper contact piece 12 is placed between the two clamping plates. When the insert body 1 is lifted, the two clamping plates 4 automatically clamp the copper contact piece 12. Then, the insert body 1 is placed as shown in the picture. Figure 5 The insert body 1 is placed on the fixed mold 13 of the injection molding machine. The fixed mold 13 has a groove that is adapted to the insert body 1. The groove has a lifting device that can lift the insert body 1, such as a hydraulic cylinder driving the gripper. Part of the insert body 1 is inside the injection cavity 14, and the other part of the insert body 1 is outside the cavity 14. After the injection is completed, the lifting device abuts against the insert body 1, thereby squeezing the pressure plate 11 to open the two clamping plates 4 again, so as to facilitate the separation of the insert body 1 from the copper connector 12. Then, the lifting device pulls the insert body 1 outward, thereby separating the insert body 1 from the copper connector 12. Then, the demolding and other steps are performed.

[0028] 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 copper insert for injection molding of automotive parts, comprising an insert body (1), characterized in that, The insert body has two slots (2) and the insert body (1) has a movable cavity (3). Two clamping plates (4) are slidably arranged inside the movable cavity (3). Two elastic elements are fixedly arranged between each clamping plate (4) and the inner wall of the movable cavity (3). Multiple protrusions (6) are fixedly arranged on the side of each clamping plate (4) away from the elastic elements.

2. The copper insert based on automotive parts injection molding according to claim 1, characterized in that, Each of the elastic elements is a first spring (5), and each of the protrusions (6) is triangular.

3. The copper insert based on automotive parts injection molding according to claim 1, characterized in that, A push plate (7) is slidably disposed on the insert body (1), and both sides of the push plate (7) are set as inclined surfaces.

4. A copper connector insert based on automotive parts injection molding according to claim 3, characterized in that, A connecting plate (8) is fixedly provided on the push plate (7), and a top rod (9) is fixedly provided on the connecting plate (8). The top rod (9) is slidably connected to the insert body (1).

5. A copper connector insert based on automotive parts injection molding according to claim 4, characterized in that, A pressure plate (11) is fixedly provided at the end of the top rod (9) away from the push plate (7), and a second spring (10) is fixedly provided between the pressure plate (11) and the insert body (1).

Images