Connector preparation process

Abstract

The invention relates to the technical field of connector preparation, in particular to a connector preparation process, which comprises the following steps: S1, stamping a metal plate to prepare an outer iron shell, electroplating to enhance corrosion resistance and conductivity, and injection-molding a protective layer to improve mechanical strength and wear resistance so as to provide mechanical protection and electromagnetic shielding; s2, performing injection molding on a plastic material to form a plastic main body, designing a cavity in the plastic main body to install a contact terminal, and performing cooling, taking out, polishing and surface treatment; s3, performing injection molding on the metal upper-row contact terminals, arranging a connecting part, and ensuring that the connecting part and the plastic are integrally formed; s4, the copper or tinned copper grounding terminal is subjected to injection molding, and upper and lower connecting grooves are formed; s5, the copper or gold-plated copper lower-row contact terminals are subjected to injection molding, and connecting parts are arranged; and S6, assembling the outer iron shell and the plastic main body, fixing and checking to ensure that the structure of the connector is complete and the performance meets the standard. According to the invention, the problems of assembly error, material waste and unstable mechanical and electrical performance caused by a traditional assembly method are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of connector preparation, and in particular to a connector preparation process. Background Art

[0002] Traditional connectors are mainly made of precision materials such as plastics, metals, and springs. The materials commonly used for the plastic part include PBT, NYLON, ABS, PC, LCP, etc. These materials must have good flame retardancy. Copper alloys such as brass and phosphor bronze are commonly used for the metal part. These materials have excellent conductivity, plasticity, and corrosion resistance. Brass is widely used because of its good elasticity, strength, and electrical properties, as well as its relatively low cost. Phosphor bronze is suitable for contacts with operating temperatures below 300°C due to its high strength, toughness, and conductivity.

[0003] The traditional connector production process usually includes key steps such as material selection, molding, processing, surface treatment, assembly, electrical performance testing and quality inspection. In this process, the various components of the connector, such as metal terminals and plastic shells, need to be precisely matched to ensure the mechanical and electrical performance of the connector. The traditional connector assembly method also involves multiple independent processing steps, such as welding, pressing and plugging. These steps are not only inefficient but also fall off after assembly, which also leads to assembly errors and material waste. Therefore, a connector preparation process is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a connector preparation process, which can effectively solve the problems of low production efficiency, assembly error, material waste and unstable mechanical and electrical performance caused by traditional assembly methods in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a connector preparation process, comprising the following steps:

[0006] S1: preparing an outer iron shell, punching a metal sheet into a desired outer iron shell shape by a high-precision punching machine, electroplating the outer iron shell to enhance its corrosion resistance and conductivity, and injecting a protective layer on the stamped and electroplated outer iron shell to enhance its mechanical strength and wear resistance, wherein the outer iron shell is designed to cover the outside of the connector to provide mechanical protection and electromagnetic shielding;

[0007] S2: preparing a plastic body according to the inner dimensions of the outer iron shell, using a high-precision injection molding machine to injection mold the plastic material, cooling the plastic body after injection molding to ensure the stability of its shape and size, taking the plastic body out of the mold after cooling and shaping, and finally grinding, cleaning and surface treating the plastic body to ensure that its surface is smooth and free of defects, wherein a cavity is provided inside the plastic body for installing the upper row of contact terminals, the grounding terminal and the lower row of contact terminals;

[0008] S3: prepare the upper row of contact terminals made of metal as inserts, design and manufacture a special injection mold, the mold has special grooves or holes for positioning the upper row of contact terminals, the injection molding machine is set to temperature and pressure parameters suitable for the required plastic material, during the injection molding process, the upper row of contact terminals are accurately placed at a predetermined position in the mold, and then molten plastic material is injected, the plastic material solidifies around the terminals in the mold to form an upper row of injection-molded plastic, after cooling and solidification, the upper row of injection-molded plastic is integrated with the upper row of contact terminals, and then taken out of the mold, and post-processing such as deburring and trimming is performed, and during injection molding, a connecting component is set on the lower end surface of the upper row of injection-molded plastic;

[0009] S4: prepare a grounding terminal made of copper or tinned copper as an insert, design an injection mold to keep the position of the grounding terminal in the mold, and ensure that the terminal does not move during the injection molding process, and set the temperature, pressure and other parameters of the injection molding machine according to the material properties of the grounding injection molding plastic. After the grounding terminal is placed in an appropriate position of the mold, inject the plastic material so that the molten plastic material solidifies around the grounding terminal. After cooling and solidification, the grounding injection molding plastic and the grounding terminal are integrated, and then taken out of the mold and post-processed. During injection molding, connection grooves are respectively set at the upper and lower ends of the grounding injection molding plastic;

[0010] S5: prepare the lower row of contact terminals made of copper or gold-plated copper as inserts, design the mold to maintain the position of the lower row of contact terminals in the mold, and ensure that the terminals will not move during the injection molding process, and set the temperature, pressure and other parameters of the injection molding machine according to the material properties of the injection-molded plastic of the lower row of contact terminals. After the lower row of contact terminals are placed in the appropriate position of the mold, inject the plastic material to solidify the molten plastic material around the lower row of contact terminals. After cooling and solidification, the lower row of injection-molded plastic and the lower row of contact terminals are integrated, and then taken out of the mold and post-processed. During injection molding, a connecting component is set on the lower end surface of the lower row of injection-molded plastic;

[0011] S6: Assemble the outer iron shell and the plastic body, place the plastic body at the predetermined position of the outer iron shell, ensure that each terminal is aligned with the corresponding hole position of the outer iron shell, use screws, snaps or other fixing methods to fix the outer iron shell and the plastic body together, and perform appearance and function inspections on the assembled connector to ensure that it meets the design requirements and performance standards to form a complete connector structure. The whole formed by the upper row of injection molded plastic and the upper row of contact terminals and the whole formed by the lower row of injection molded plastic and the lower row of contact terminals are clamped and positioned against the whole formed by the grounding injection molded plastic and the grounding terminal.

[0012] Preferably, the upper row of injection-molded plastic lower end surface injection-molded connecting components described in S3 adopts a T-shaped plug-in block with a longitudinal cross section.

[0013] When the above technical solution is adopted, the T-type plug-in block provides a larger contact area and stronger mechanical stability, making the connection between the upper row of injection-molded plastic and the ground injection-molded plastic more secure. The design of the T-type plug-in block can effectively prevent the connection parts from detaching when subjected to force, thereby improving the reliability of the connector. The T-type plug-in blocks simplify the assembly process because they can be directly inserted into the corresponding T-slots without the need for additional fixing elements.

[0014] Preferably, the connection component of the lower row of injection-molded plastic upper end surface injection-molded in S4 adopts a plug-in block with a T-shaped longitudinal cross-section.

[0015] When the above technical solution is adopted, the T-shaped plug block design, which is similar to the upper row of injection-molded plastic, maintains the symmetry of the upper and lower parts of the connector, helps to unify the design language and simplify the production process. The T-shaped plug block provides an additional locking mechanism to enhance the connection strength between the lower row of injection-molded plastic and the grounding injection-molded plastic. The standardized T-shaped plug blocks reduce errors in the assembly process because they can only be correctly inserted in one way, reducing the difficulty of assembly.

[0016] Preferably, the connecting grooves opened at the upper and lower ends of the grounding injection-molded plastic in S5 adopt T-slots that match the plug-in blocks on the lower end surface of the upper row of injection-molded plastic and the plug-in blocks on the upper end surface of the lower row of injection-molded plastic, and the upper row of injection-molded plastic and the lower row of injection-molded plastic are combined with the grounding injection-molded plastic in a T-shaped interlocking manner. The T-shaped interlocking design prevents the upper row of injection molded plastic and the lower row of injection molded plastic from detaching from the grounding injection molded plastic.

[0017] When the above technical solution is adopted, the connection mechanism of the entire connector is standardized through the unified use of T-slots and plug-in blocks, which helps to improve production efficiency and reduce maintenance costs. The T-interlocking design makes the structure of the entire connector more compact and sturdy, reduces the loosening of components caused by vibration or impact, and improves the electrical safety of the connector and the reliability of signal transmission by preventing the upper and lower rows of injection-molded plastics from detaching from the grounding injection-molded plastics.

[0018] Preferably, the connecting component of the upper row of injection-molded plastic lower end surface injection-molded is a cylinder.

[0019] When the above technical solution is adopted, the cylinder provides a certain installation flexibility, which helps to align the connecting parts during the assembly process and reduce the difficulty of assembly. The design and manufacturing of the cylinder are relatively simple, which can reduce production costs. The cylinder is easy to detect its wear and tear and can be quickly replaced when necessary, which improves the maintainability of the connector.

[0020] Preferably, the connecting component molded on the upper end surface of the lower row of injection-molded plastic in S4 is a cylinder.

[0021] When the above technical solution is adopted, the cylindrical design similar to the upper row of injection-molded plastic maintains the consistency of the upper and lower parts of the connector, which helps to unify the design and production processes. Due to its simple geometric shape, the cylinder is generally more durable and can withstand more wear and stress. The production of the cylinder does not require complex molds, which can reduce manufacturing costs and improve production efficiency.

[0022] Preferably, the connecting grooves opened at the upper and lower ends of the grounding injection-molded plastic in S5 adopt circular holes that match the plug-in blocks on the lower end surface of the upper row of injection-molded plastic and the cylinders on the upper end surface of the lower row of injection-molded plastic. The upper row of injection-molded plastic and the lower row of injection-molded plastic are combined with the grounding injection-molded plastic by longitudinal plug-in. A buckle is provided in the circular hole of the grounding injection-molded plastic. After the cylinder and the circular hole are combined, the buckle design prevents the upper row of injection-molded plastic and the lower row of injection-molded plastic from detaching from the grounding injection-molded plastic.

[0023] When the above technical solution is adopted, the precise fit between the round hole and the cylinder ensures a tight connection between the various components of the connector, improving the overall performance of the connector. The snap-on design in the round hole provides an additional locking mechanism, ensuring that the connecting components will not detach when subjected to force, thereby enhancing the reliability of the connector. The combination of the cylinder and the round hole makes the maintenance and replacement of the connector easier because they can be quickly disassembled and reassembled.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention realizes an automated and precisely controlled production process by using a high-precision punching machine and an injection molding machine, as well as a special mold, thereby reducing manual operation and improving production efficiency. The assembly of the outer iron shell and the plastic body simplifies the assembly process and reduces assembly time through a standardized fixing method. By embedding metal terminals in the injection-molded plastic and setting precise positioning grooves or holes during injection molding, the terminal position is ensured to be accurate and assembly errors are reduced. By ensuring that each terminal is aligned with the corresponding hole position of the outer iron shell, the error in the assembly process is further reduced. The electroplating treatment enhances the corrosion resistance and conductivity of the outer iron shell, extends the service life, and reduces material waste. The cooling treatment and surface treatment of the plastic body ensure the stability of shape and size and reduce material waste caused by deformation or damage. The electroplating treatment of the outer iron shell and the injection molding of the protective layer enhance the mechanical strength and wear resistance and improve the mechanical properties of the connector. A cavity is set inside the plastic body for installing the contact terminal, thereby providing a stable electrical connection. The integrated design of the injection-molded plastic and the metal terminal improves the electrical connection stability of the connector.

[0026] The contact terminals are precisely positioned through special slots or holes in the dedicated injection mold to ensure the precise position of the terminals during the injection molding process, thereby improving the assembly accuracy and consistency of the connector. The contact terminals and the plastic material are injection molded to form an integrated structure, which enhances the mechanical strength and durability of the overall structure, while providing a stable electrical connection and reducing failures caused by loose or falling terminals. The design of T-type plug-in blocks and cylinders provides a larger contact area and stronger mechanical stability, making the connection between the injection molded plastic and the contact terminals more secure, improving the reliability of the connector. The integrated design reduces the need for additional fixing components, simplifies the assembly process, and improves production efficiency. The cylinders that are easy to detect wear can be quickly replaced, which improves the maintainability of the connector and reduces maintenance costs. The connection grooves set at the upper and lower ends of the grounding injection molded plastic provide flexible connection methods that can adapt to different assembly requirements. The stable electrical connection and integrated grounding terminal design help ensure the electromagnetic compatibility and signal integrity of the connector. The standardized T-type plug-in blocks reduce errors during assembly because they can only be correctly inserted in one way, reducing the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the process flow of the present invention;

[0028] Figure 2 It is an exploded schematic diagram of a connection method of the present invention;

[0029] Figure 3 For the present invention Figure 2 The structural diagram of the enlarged part in the middle;

[0030] Figure 4 It is an exploded schematic diagram of another connection method of the present invention;

[0031] Figure 5 For the present invention Figure 4 The structural diagram of the enlarged part in the middle;

[0032] Figure 6 It is a schematic diagram of the buckle connection structure of the present invention.

[0033] In the figure: 1. outer iron shell; 2. plastic body; 3. upper row of injection-molded plastic; 31. upper row of contact terminals; 4. grounding injection-molded plastic; 41. grounding terminal; 42. buckle; 5. lower row of injection-molded plastic; 51. lower row of contact terminals; 6. plug-in block; 7. T-slot; 8. cylinder; 9. round hole. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] like Figures 1 to 6 As shown, an embodiment of the present invention provides: a connector preparation process, comprising the following steps:

[0037] S1: preparing an outer iron shell 1, punching a metal sheet into a desired shape of the outer iron shell 1 by a high-precision punching machine, electroplating the outer iron shell 1 to enhance its corrosion resistance and conductivity, and injecting a protective layer on the stamped and electroplated outer iron shell 1 to enhance its mechanical strength and wear resistance. The outer iron shell 1 is designed to cover the outside of the connector to provide mechanical protection and electromagnetic shielding;

[0038] S2: a plastic body 2 is prepared according to the internal dimensions of the outer iron shell 1, and the plastic material is injection molded using a high-precision injection molding machine. After injection molding, the plastic body 2 is cooled to ensure the stability of its shape and size. After cooling and shaping, the plastic body 2 is taken out of the mold. Finally, the plastic body 2 is polished, cleaned and surface treated to ensure that its surface is smooth and free of defects. A cavity is set inside the plastic body 2 for installing the upper row of contact terminals 31, the grounding terminal 41 and the lower row of contact terminals 51;

[0039] S3: prepare the upper row of contact terminals 31 made of metal as inserts, design and manufacture a special injection mold, the mold has special grooves or holes for positioning the upper row of contact terminals 31, the injection molding machine is set to the temperature and pressure parameters suitable for the required plastic material, during the injection molding process, the upper row of contact terminals 31 are accurately placed at the predetermined position in the mold, and then the molten plastic material is injected, and the plastic material is solidified around the terminals in the mold to form the upper row of injection-molded plastic 3, after cooling and solidification, the upper row of injection-molded plastic 3 is integrated with the upper row of contact terminals 31, and then taken out of the mold, and post-processing such as deburring and trimming is performed, and during injection molding, a connecting component is set on the lower end surface of the upper row of injection-molded plastic 3;

[0040] S4: prepare a grounding terminal 41 made of copper or tinned copper as an insert, design an injection mold to keep the position of the grounding terminal 41 in the mold, and ensure that the terminal does not move during the injection molding process. The injection molding machine sets parameters such as temperature and pressure according to the material properties of the grounding injection molding plastic 4. After the grounding terminal 41 is placed in an appropriate position of the mold, the plastic material is injected to solidify the molten plastic material around the grounding terminal 41. After cooling and solidification, the grounding injection molding plastic 4 and the grounding terminal 41 are integrated, and then taken out of the mold and post-processed. During injection molding, connection grooves are respectively set at the upper and lower ends of the grounding injection molding plastic 4;

[0041] S5: prepare the lower row of contact terminals 51 made of copper or gold-plated copper as inserts, design the mold to maintain the position of the lower row of contact terminals 51 in the mold, and ensure that the terminals will not move during the injection molding process. The injection molding machine sets the temperature, pressure and other parameters according to the material properties of the plastic injection-molded by the lower row of contact terminals 51. After the lower row of contact terminals 51 are placed in the appropriate position of the mold, the plastic material is injected to solidify the molten plastic material around the lower row of contact terminals 51. After cooling and solidification, the lower row of injection-molded plastic 5 is integrated with the lower row of contact terminals 51, and then taken out from the mold and post-processed. During injection molding, a connecting component is set on the lower end surface of the lower row of injection-molded plastic 5;

[0042] S6: Assemble the outer iron shell 1 and the plastic body 2, place the plastic body 2 at the predetermined position of the outer iron shell 1, ensure that each terminal is aligned with the corresponding hole position of the outer iron shell 1, use screws, snaps 42 or other fixing methods to fix the outer iron shell 1 and the plastic body 2 together, perform appearance and function inspection on the assembled connector to ensure that it meets the design requirements and performance standards, and form a complete connector structure. The upper row of injection molded plastic 3 and the upper row of contact terminals 31 as a whole and the lower row of injection molded plastic 5 and the lower row of contact terminals 51 as a whole are clamped and positioned against the grounding injection molded plastic 4 and the grounding terminal 41 as a whole.

[0043] Specifically, by using high-precision punching machines and injection molding machines, as well as special molds, an automated and precisely controlled production process is achieved, manual operations are reduced, and production efficiency is improved. The assembly of the outer iron shell 1 and the plastic body 2 simplifies the assembly process and reduces the assembly time through a standardized fixing method. By embedding metal terminals in the injection-molded plastic and setting precise positioning grooves or holes during injection molding, the terminal position is accurate and the assembly error is reduced. By ensuring that each terminal is aligned with the corresponding hole position of the outer iron shell 1, the error in the assembly process is further reduced. The electroplating treatment enhances the corrosion resistance and conductivity of the outer iron shell 1, extends the service life, and reduces material waste. The cooling treatment and surface treatment of the plastic body 2 ensure the stability of the shape and size, and reduce the material waste caused by deformation or damage. The electroplating treatment of the outer iron shell 1 and the injection molding of the protective layer enhance the mechanical strength and wear resistance, and improve the mechanical properties of the connector. A cavity is set inside the plastic body 2 for installing the contact terminal, which provides a stable electrical connection. The integrated design of the injection-molded plastic and the metal terminal improves the electrical connection stability of the connector.

[0044] The contact terminals are precisely positioned by special grooves or holes in a dedicated injection mold to ensure that the terminals are accurately positioned during the injection molding process, thereby improving the assembly accuracy and consistency of the connector. The contact terminals and the plastic material are injection molded to form an integrated structure, which enhances the mechanical strength and durability of the overall structure, while providing a stable electrical connection and reducing failures caused by loose or falling terminals. The design of the T-type plug block 6 and the cylinder 8 provides a larger contact area and stronger mechanical stability, making the connection between the injection molded plastic and the contact terminal more secure, thereby improving the reliability of the connector. The integrated design reduces the need for additional fixing components, simplifies the assembly process, and improves production efficiency. The cylinder 8, which is easy to detect wear, can be quickly replaced, thereby improving the maintainability of the connector and reducing maintenance costs. The connection grooves provided at the upper and lower ends of the grounding injection molded plastic 4 provide a flexible connection method that can adapt to different assembly requirements. The stable electrical connection and the integrated grounding terminal 41 design help ensure the electromagnetic compatibility and signal integrity of the connector. The standardized T-type plug block 6 reduces errors during assembly because they can only be correctly inserted in one way, reducing the difficulty of assembly.

[0045] Embodiment 2

[0046] In order to improve the connection stability of the components inside the plastic body 2, Figure 2 and Figure 3 As shown, this embodiment provides a design method for a connecting component. The connecting component of the upper row of injection-molded plastic 3 in S3 is a T-shaped plug-in block 6 with a longitudinal cross section.

[0047] Specifically, the T-shaped plug-in block 6 provides a larger contact area and stronger mechanical stability, making the connection between the upper row of injection-molded plastic 3 and the ground injection-molded plastic 4 more secure. The design of the T-shaped plug-in block 6 can effectively prevent the connection components from detaching when subjected to force, thereby improving the reliability of the connector. The T-shaped plug-in blocks 6 simplify the assembly process because they can be directly inserted into the corresponding T-shaped slots 7 without the need for additional fixing elements.

[0048] Furthermore, the connection component molded on the upper end surface of the lower row of injection-molded plastic 5 described in S4 adopts a plug-in block 6 with a T-shaped longitudinal cross-section.

[0049] Specifically, the design of the T-shaped plug block 6, which is similar to the upper row of injection-molded plastic 3, maintains the symmetry of the upper and lower parts of the connector, helps to unify the design language and simplify the production process. The T-shaped plug block 6 provides an additional locking mechanism to enhance the connection strength between the lower row of injection-molded plastic 5 and the grounding injection-molded plastic 4. The standardized T-shaped plug blocks 6 reduce errors in the assembly process because they can only be correctly inserted in one way, reducing the difficulty of assembly.

[0050] Furthermore, the connection grooves opened at the upper and lower ends of the grounding injection-molded plastic 4 described in S5 adopt T-slots 7 that match the plug-in blocks 6 on the lower end surface of the upper row of injection-molded plastic 3 and the plug-in blocks 6 on the upper end surface of the lower row of injection-molded plastic 5. The upper row of injection-molded plastic 3 and the lower row of injection-molded plastic 5 are combined with the grounding injection-molded plastic 4 in a T-shaped interlocking manner. The T-shaped interlocking design prevents the upper row of injection-molded plastic 3 and the lower row of injection-molded plastic 5 from detaching from the grounding injection-molded plastic 4.

[0051] Specifically, by uniformly using the T-slot 7 and the plug-in block 6, the connection mechanism of the entire connector is standardized, which helps to improve production efficiency and reduce maintenance costs. The T-interlocking design makes the structure of the entire connector more compact and sturdy, reduces the loosening of components caused by vibration or impact, and improves the electrical safety of the connector and the reliability of signal transmission by preventing the upper and lower rows of injection-molded plastic 5 from detaching from the grounding injection-molded plastic 4.

[0052] Embodiment 3

[0053] In order to make the connection of the internal components of the plastic body 2 more flexible, such as Figures 4 to 6 As shown, this embodiment provides another design method of the connecting component, and the connecting component injected at the lower end surface of the upper row of injection-molded plastic 3 described in S3 is a cylinder 8.

[0054] Specifically, the cylinder 8 provides a certain degree of installation flexibility, which helps to align the connecting parts during the assembly process and reduce the difficulty of assembly. The design and manufacture of the cylinder 8 are relatively simple, which can reduce production costs. The cylinder 8 is easy to detect its wear and tear and can be quickly replaced when necessary, which improves the maintainability of the connector.

[0055] Furthermore, the connecting component molded on the upper end surface of the lower row of injection-molded plastic 5 in S4 is a cylinder 8 .

[0056] Specifically, the design of the cylinder 8, which is similar to the upper row of injection-molded plastic 3, maintains the consistency of the upper and lower parts of the connector, which helps to unify the design and production processes. Due to its simple geometric shape, the cylinder 8 is generally more durable and can withstand more wear and stress. The production of the cylinder 8 does not require complex molds, which can reduce manufacturing costs and improve production efficiency.

[0057] Furthermore, the connecting grooves opened at the upper and lower ends of the grounding injection molded plastic 4 described in S5 adopt a circular hole 9 that matches the plug-in block 6 on the lower end surface of the upper row of injection molded plastic 3 and the cylinder 8 on the upper end surface of the lower row of injection molded plastic 5. The upper row of injection molded plastic 3 and the lower row of injection molded plastic 5 are combined with the grounding injection molded plastic 4 by longitudinal plug-in. A buckle 42 is provided in the circular hole 9 of the grounding injection molded plastic 4. After the cylinder 8 and the circular hole 9 are combined, the buckle 42 is designed to prevent the upper row of injection molded plastic 3 and the lower row of injection molded plastic 5 from being separated from the grounding injection molded plastic 4.

[0058] Specifically, the precise fit between the circular hole 9 and the cylinder 8 ensures a tight connection between the various components of the connector, improving the overall performance of the connector. The buckle 42 design in the circular hole 9 provides an additional locking mechanism, ensuring that the connecting components will not disengage when subjected to force, thereby enhancing the reliability of the connector. The combination of the cylinder 8 and the circular hole 9 makes the maintenance and replacement of the connector easier because they can be quickly disassembled and reassembled.

[0059] When the present invention is used, first, the upper row of contact terminals 31, the lower row of contact terminals 51 and the grounding terminal 41 need to be respectively injection molded and installed on the corresponding injection-molded plastic. This step is a key link to ensure the stability and functionality of the internal structure of the connector. At the beginning of the operation, the upper row of contact terminals 31, the lower row of contact terminals 51 and the grounding terminal 41 are prepared as inserts. Then, a special injection mold is designed and manufactured, and these molds have special grooves or holes for positioning these terminals. The injection molding machine is set to the temperature and pressure parameters suitable for the required plastic material. During the injection molding process, the upper row of contact terminals 31, the lower row of contact terminals 51 and the grounding terminal 41 are accurately placed in the predetermined position in the mold. Then, the molten plastic material is injected, and the plastic material is solidified around the terminals in the mold to form the upper row of injection-molded plastic 3, the lower row of injection-molded plastic 5 and the grounding injection-molded plastic 4. After cooling and solidification, these injection-molded plastics are integrated with their respective contact terminals, and then taken out of the mold, and post-processing such as deburring and trimming is performed. At appropriate positions of the injection-molded plastic, connecting components (such as T-shaped plug blocks 6 or cylinders 8) or connecting grooves (such as T-shaped grooves 7 or round holes 9) are provided according to design requirements. These designs ensure that the components can be accurately docked and firmly fixed in the subsequent assembly process.

[0060] After the upper row injection molded plastic 3 , the lower row injection molded plastic 5 and the ground injection molded plastic 4 form an integral structure with their respective contact terminals, the next step is to install these three integral structures inside the cavity of the plastic body 2 .

[0061] The operator places the plastic body 2 on the workbench and ensures that the internal cavity is clean and free of foreign matter. Then, according to the predetermined design and sequence, the upper row of injection molded plastic 3 and the upper row of contact terminals 31, the lower row of injection molded plastic 5 and the lower row of contact terminals 51, and the grounding injection molded plastic 4 and the grounding terminal 41 are plugged in and the plugged components are placed in the cavity of the plastic body 2. During the placement process, special attention should be paid to the direction and position of each integral structure to ensure that they are correctly aligned so that they can be correctly docked with the outer iron shell 1 later.

Claims

1. A connector preparation process, characterized in that: The following steps are involved: S1: preparing an outer iron shell, punching a metal sheet into a desired outer iron shell shape by a high-precision punching machine, electroplating the outer iron shell to enhance its corrosion resistance and conductivity, and injecting a protective layer on the stamped and electroplated outer iron shell to enhance its mechanical strength and wear resistance, wherein the outer iron shell is designed to cover the outside of the connector to provide mechanical protection and electromagnetic shielding; S2: preparing a plastic body according to the inner dimensions of the outer iron shell, using a high-precision injection molding machine to injection mold the plastic material, cooling the plastic body after injection molding to ensure the stability of its shape and size, taking the plastic body out of the mold after cooling and shaping, and finally grinding, cleaning and surface treating the plastic body to ensure that its surface is smooth and free of defects, wherein a cavity is provided inside the plastic body for installing the upper row of contact terminals, the grounding terminal and the lower row of contact terminals; S3: prepare the upper row of contact terminals made of metal as inserts, design and manufacture a special injection mold, the mold has special grooves or holes for positioning the upper row of contact terminals, the injection molding machine is set to temperature and pressure parameters suitable for the required plastic material, during the injection molding process, the upper row of contact terminals are accurately placed at a predetermined position in the mold, and then molten plastic material is injected, the plastic material solidifies around the terminals in the mold to form an upper row of injection-molded plastic, after cooling and solidification, the upper row of injection-molded plastic is integrated with the upper row of contact terminals, and then taken out of the mold, and post-processing such as deburring and trimming is performed, and during injection molding, a connecting component is set on the lower end surface of the upper row of injection-molded plastic; S4: prepare a grounding terminal made of copper or tinned copper as an insert, design an injection mold to keep the position of the grounding terminal in the mold, and ensure that the terminal does not move during the injection molding process, and set the temperature, pressure and other parameters of the injection molding machine according to the material properties of the grounding injection molding plastic. After the grounding terminal is placed in an appropriate position of the mold, inject the plastic material so that the molten plastic material solidifies around the grounding terminal. After cooling and solidification, the grounding injection molding plastic and the grounding terminal are integrated, and then taken out of the mold and post-processed. During injection molding, connection grooves are respectively set at the upper and lower ends of the grounding injection molding plastic; S5: prepare the lower row of contact terminals made of copper or gold-plated copper as inserts, design the mold to maintain the position of the lower row of contact terminals in the mold, and ensure that the terminals will not move during the injection molding process, and set the temperature, pressure and other parameters of the injection molding machine according to the material properties of the injection-molded plastic of the lower row of contact terminals. After the lower row of contact terminals are placed in the appropriate position of the mold, inject the plastic material to solidify the molten plastic material around the lower row of contact terminals. After cooling and solidification, the lower row of injection-molded plastic and the lower row of contact terminals are integrated, and then taken out of the mold and post-processed. During injection molding, a connecting component is set on the lower end surface of the lower row of injection-molded plastic; S6: Assemble the outer iron shell and the plastic body, place the plastic body at the predetermined position of the outer iron shell, ensure that each terminal is aligned with the corresponding hole position of the outer iron shell, use screws, snaps or other fixing methods to fix the outer iron shell and the plastic body together, and perform appearance and function inspections on the assembled connector to ensure that it meets the design requirements and performance standards to form a complete connector structure. The whole formed by the upper row of injection molded plastic and the upper row of contact terminals and the whole formed by the lower row of injection molded plastic and the lower row of contact terminals are clamped and positioned against the whole formed by the grounding injection molded plastic and the grounding terminal.

2. A connector preparation process according to claim 1, characterized in that: The upper row of injection-molded plastic lower end surface injection-molded connecting components described in S3 adopt a plug-in block with a T-shaped longitudinal cross section.

3. A connector preparation process according to claim 1, characterized in that: The connection component of the lower row of injection-molded plastic upper end surface injection-molded in S4 adopts a plug-in block with a T-shaped longitudinal section.

4. A connector preparation process according to claim 1, characterized in that: The connection grooves opened at the upper and lower ends of the grounding injection molded plastic described in S5 adopt T-slots that match the plug-in blocks on the lower end surface of the upper row of injection molded plastic and the plug-in blocks on the upper end surface of the lower row of injection molded plastic. The upper row of injection molded plastic and the lower row of injection molded plastic are combined with the grounding injection molded plastic in a T-shaped interlocking manner. The T-shaped interlocking design prevents the upper row of injection molded plastic and the lower row of injection molded plastic from detaching from the grounding injection molded plastic.

5. A connector preparation process according to claim 1, characterized in that: The upper row of injection-molded plastic lower end surface injection-molded connecting parts described in S3 are cylindrical.

6. A connector preparation process according to claim 1, characterized in that: The connecting component of the lower row of injection-molded plastic upper end surface injection-molded in S4 is a cylinder.

7. A connector preparation process according to claim 1, characterized in that: The connection grooves opened at the upper and lower ends of the grounding injection molded plastic described in S5 adopt circular holes that match the plug-in blocks on the lower end surface of the upper row of injection molded plastic and the cylinder on the upper end surface of the lower row of injection molded plastic. The upper row of injection molded plastic and the lower row of injection molded plastic are combined with the grounding injection molded plastic by longitudinal plug-in. A buckle is provided in the circular hole of the grounding injection molded plastic. After the cylinder and the circular hole are combined, the buckle design prevents the upper row of injection molded plastic and the lower row of injection molded plastic from detaching from the grounding injection molded plastic.

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