EPON welding tool

Abstract

The utility model relates to an EPON (Ethernet Passive Optical Network) welding tool which comprises a base for supporting and positioning a PCB (Printed Circuit Board) and a device; the PCB is placed on the base and is positioned through the edge limiting structure; the device is placed on the base, and a head cylinder of the device is positioned in the V-shaped groove; the cover plate is connected to the base in a turnover manner and is used for providing downward pressure to clamp the PCB and the device after the PCB and the device are positioned; the buckling mechanism comprises a ball head plunger and is arranged between the base and the cover plate; and the clamping mechanism is arranged on the base and used for pushing the device to the bottom of the flange limiting position after the device is positioned and applying stable clamping force. The clamp is compact and reasonable in structure and convenient to operate, through precise mechanical design and structural optimization, welding precision and stability are remarkably improved, operation steps are simplified, welding efficiency is improved, and meanwhile durability and stability of the clamp are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of electronic manufacturing technology, and in particular to EPON welding fixtures. Background Technology

[0002] In today's electronics manufacturing industry, the soldering of EPON (Ethernet Passive Optical Network) devices is a crucial step. However, traditional soldering fixtures often suffer from structural deformation after prolonged use due to insufficient material durability, a particularly prominent issue. Due to the limitations of the fixture materials, maintaining precise positioning of the device and the PCB (Printed Circuit Board) during soldering is difficult over extended periods. Ideally, the device's centerline should be parallel to the PCB to ensure post-soldering electrical performance and mechanical stability. However, in practice, fixture deformation often results in angular deviations in the soldered devices. This not only affects the product's electrical performance but can also lead to increased product defect rates, causing significant production disruptions.

[0003] Furthermore, traditional clamping solutions are typically cumbersome, requiring two or more steps to clamp the component to the PCB board. This not only reduces soldering efficiency but also increases operational complexity. Therefore, the design of new clamps needs to consider how to improve the clamping mechanism, simplify the operation steps, and enhance the convenience and efficiency of soldering.

[0004] In summary, this application aims to address the technical problems of existing welding fixtures, such as insufficient material durability, easy structural deformation, angular deviation between welded components and the PCB board, and cumbersome fixture fastening schemes. By redesigning the welding fixture, improving the limiting groove design, replacing the material with a more durable one, and refining the fixture fastening scheme, the goal is to achieve a dual improvement in welding efficiency and quality, meeting the urgent needs of the electronics manufacturing industry for high-precision, high-efficiency welding fixtures.

[0005] Therefore, we propose EPON welding fixtures. Utility Model Content

[0006] In response to the shortcomings of the existing production technology, the applicant provides EPON welding fixtures, which significantly improve welding accuracy and stability through precise mechanical design and structural optimization, simplify operation steps and increase welding efficiency, while enhancing the durability and stability of the fixtures.

[0007] The technical solution adopted in this utility model is as follows:

[0008] EPON welding fixture, the structure of which includes:

[0009] A base for supporting and positioning PCB boards and components. The base is provided with an edge limiting structure for positioning the tail of the PCB board, a V-shaped groove for positioning the head column of the component, and a flange limiting groove for limiting the component.

[0010] The PCB board is placed on the base and positioned by the edge limiting structure;

[0011] The device is placed on the base, with its head column positioned within a V-shaped groove;

[0012] A cover plate, which is foldably attached to the base, is used to provide downward pressure to clamp the PCB board and the device after they are positioned.

[0013] The fastening mechanism includes a ball-head plunger, disposed between the base and the cover plate;

[0014] A clamping mechanism, disposed on the base, is used to push the device to the bottom of the flange limit and apply a stable clamping force after the device is positioned.

[0015] In one embodiment, the base is provided with multiple support structures to support the areas on both sides of the PCB pin header where there are no components, preventing the PCB from shaking during the soldering process.

[0016] In one embodiment, the clamping mechanism includes a rivet-nut and a spring, used in conjunction with a nylon Phillips head screw.

[0017] In one embodiment, the edge limiting structure is a contour groove provided on the base, used to outline the contour of the PCB board and position its tail.

[0018] In one embodiment, the cover plate is provided with holes that mate with the ball-head plunger, so that it can be quickly fastened to the base by flipping the cover plate.

[0019] In one embodiment, the orifice is chamfered to facilitate the entry and locking of the ball plunger.

[0020] The cover plate is rotatably connected to the base by a cylindrical pin.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model features a compact and reasonable structure, and is easy to operate. Through precise mechanical design and structural optimization, it significantly improves welding accuracy and stability, simplifies operation steps, and increases welding efficiency, while also enhancing the durability and stability of the fixture. Specifically, by employing a combination of rivets, nuts, and springs, a limiting groove design on the base, and a convenient opening and closing mechanism with a ball-head plunger, this fixture ensures precise positioning and stable clamping of components and PCB boards during the welding process. Furthermore, the design of the flip-over fixture and the selection of high-quality materials further enhance welding efficiency and fixture durability. This innovative design not only meets the urgent needs of the electronics manufacturing industry for high-precision, high-efficiency welding fixtures but also provides a strong guarantee for improving product quality and production efficiency.

[0023] In addition, this utility model also has the following advantages:

[0024] The EPON welding fixture in this embodiment significantly improves welding accuracy and stability through precise mechanical design and structural optimization. Traditional welding fixtures, due to insufficient material durability, often deform after prolonged use, leading to angular deviations between the welded components and the PCB board, affecting the product's electrical performance and mechanical stability. This fixture, however, uses a combination of rivets, nuts, and springs, providing stable clamping force and absorbing some vibration during welding, effectively reducing welding errors. Furthermore, multiple limiting grooves on the base 9 ensure precise relative positioning of the components 4 and the PCB board 5 during welding, greatly improving welding accuracy and stability. This improvement not only meets the electronics manufacturing industry's demand for high-precision welding fixtures but also significantly reduces product defect rates and improves production efficiency.

[0025] Traditional clamping solutions are typically cumbersome, requiring two or more steps to clamp the device to the PCB board. This not only reduces soldering efficiency but also increases operational complexity. In contrast, the EPON soldering fixture in this embodiment, by introducing a ball-end plunger 3, makes opening and closing the cover plate 7 much easier, requiring only one clamping step, greatly simplifying the operation and improving efficiency. Simultaneously, the flip-clamp design allows for soldering of both sides of the PCB board 5 within the same fixture, eliminating the need to change fixtures or reposition, further enhancing soldering efficiency. This improvement not only saves operation time but also reduces operational difficulty, making the soldering process smoother and more efficient.

[0026] The EPON welding fixture in this embodiment significantly enhances its durability and stability by replacing materials with more durable ones and optimizing the fixture structure. Traditional fixtures, due to material limitations, often experience structural deformation or damage after prolonged use, leading to a decline in welding quality. This fixture, however, uses high-quality materials such as mold steel, which not only possesses high strength and wear resistance but also maintains structural integrity during extended use. Furthermore, the use of cylindrical pins 6 and nylon Phillips head screws 8 further enhances the fixture's stability and durability. This improvement not only extends the fixture's service life but also ensures consistently stable welding quality, providing the electronics manufacturing industry with a more reliable and efficient welding solution. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is an exploded view of the present invention.

[0029] Figure 3 This is a structural schematic diagram of the base of this utility model.

[0030] Figure 4 This is a schematic diagram of the structure of the cover plate of this utility model.

[0031] Figure 5 This is a schematic diagram of the connection structure between the device and the PCB board in this utility model.

[0032] in:

[0033] 1. Threaded rivets and nuts; 2. Springs; 3. Ball-head plungers; 4. Components; 5. PCB board; 6. Cylindrical pins; 7. Cover plates; 8. Nylon Phillips head screws; 9. Base. Detailed Implementation

[0034] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0035] The purpose of this utility model is to provide an EPON welding fixture, the structure of which includes this set of manual welding fixtures, comprising: a female rivet-nut 1, a spring 2, a ball plunger 3, a component 4, a PCB board 5, a cylindrical pin 6, a cover plate 7, a nylon Phillips head screw 8, and a base 9. In this embodiment, the fixture is used for welding the component 4 to the PCB board 5, improving the problem of angular deviation after welding, simplifying the operation steps, and improving welding efficiency.

[0036] like Figure 1As shown, the base 9 in this embodiment is used to support and position the PCB board 5 and the device 4. The base 9 is provided with an edge limiting structure for positioning the tail of the PCB board 5, a V-shaped groove for positioning the head column of the device 4, and a flange limiting groove for limiting the device 4.

[0037] In this embodiment, the PCB board 5 is placed on the base 9 and positioned by the edge limiting structure;

[0038] In this embodiment, device 4 is placed on base 9, and its head column is positioned in a V-shaped groove.

[0039] In this embodiment, the cover plate 7 is rotatably connected to the base 9 and is used to provide downward pressure to clamp the PCB board 5 and the device 4 after they are positioned.

[0040] The fastening mechanism in this embodiment includes a ball-head plunger 3, which is disposed between the base 9 and the cover plate 7.

[0041] The clamping mechanism in this embodiment is mounted on the base 9 and is used to push the device 4 to the bottom of the flange limit after the device 4 is positioned and to apply a stable clamping force.

[0042] In this embodiment, the base 9 is provided with multiple support structures to support the areas on both sides of the pin header of the PCB board 5 where there are no components, and to prevent the PCB board 5 from shaking during the soldering process.

[0043] This utility model's EPON welding fixture significantly improves welding efficiency and precision through precise mechanical design and structural optimization. The combination of the rivet-nut 1 and spring 2 not only provides stable clamping force but also absorbs some vibration during welding, reducing welding errors. The ball-head plunger 3 design makes the opening and closing of the cover plate 7 more convenient, reducing operation steps and improving work efficiency. The positioning of the component 4 and PCB board 5 is achieved through multiple limiting grooves on the base 9, ensuring accurate relative positions of the two during welding. The use of cylindrical pins 6 and nylon Phillips head screws 8 further enhances the stability and durability of the fixture. The overall design considers various problems that may occur during welding, such as angular deviation and vibration interference, and effectively solves these problems through structural optimization and material selection.

[0044] For positioning PCB board 5, the outline groove of the PCB is drawn on the fixture, and the tail of PCB board 5 is used for positioning. Multiple structures are designed on the base 9 to support the entire PCB board 5 and prevent PCB board 5 from shaking and affecting the soldering quality. For positioning component 4, a V-shaped groove and a flange limiting groove are designed on the base 9 to work together to limit the head column and flange of component 4, respectively. After PCB board 5 and component 4 are positioned, the cover plate 7 is flipped to provide downward pressure to both with the ball plunger 3, thereby clamping component 4 and PCB board 5. After clamping, the entire fixture can be flipped to solder the front and back sides of PCB board 5 separately.

[0045] Positioning PCB board 5 is one of the key steps in the soldering process. By outlining the PCB's contour grooves on the fixture, the precise positioning of PCB board 5 within the fixture is ensured. Utilizing the tail of PCB board 5 for positioning further enhances accuracy. Multiple support structures on the base 9 not only prevent PCB board 5 from wobbling during soldering but also ensure even distribution of soldering pressure, thereby improving soldering quality. For the positioning of component 4, the V-shaped groove and flange limiting groove design ensure stability of component 4 during soldering, reducing soldering errors caused by component 4 movement. The combined use of cover plate 7 and ball plunger 3 simplifies clamping operations while providing sufficient downward pressure to ensure a strong solder joint. The flip-top fixture design allows soldering of both sides of PCB board 5 to be completed in the same fixture, significantly improving soldering efficiency.

[0046] The base 9 has limiting grooves for both the PCB board 5 and the component 4. After the PCB board 5 is placed in the base 9, the base 9 supports the areas of the PCB board 5 without components on both sides of the pin header, and positions it using the edges of the tail of the PCB board 5. Simultaneously, because there is a certain angular deviation between the square key of the component 4 and the head post of the component 4, horizontal positioning can only be achieved using the head post. The head post of the component 4 is placed into the V-shaped groove of the base 9, and the flange limiting point further restricts the component 4. A mechanism consisting of a rivet-nut 1, a spring 2, and a nylon Phillips head screw 8 pushes the component 4 to the bottom of the flange limiting point, thus preventing the component 4 from shaking. After the component 4 and the PCB board 5 are positioned, the cover plate 7 is flipped to simultaneously press down on the component 4 and the PCB board 5, and then soldering begins.

[0047] The limiting groove design of base 9 is crucial for ensuring precise positioning of PCB board 5 and component 4. By supporting the areas on both sides of the pin header of PCB board 5 where there are no components, base 9 effectively prevents deformation and movement of PCB board 5 during the soldering process. The positioning design on both sides of the tail of PCB board 5 further enhances positioning accuracy. For the positioning of component 4, the combined use of V-groove and flange limiting groove ensures the stability of component 4 during the soldering process. The mechanism consisting of rivets-nuts 1, springs 2, and nylon Phillips head screws 8 not only provides sufficient clamping force but also absorbs some vibration during the soldering process, reducing soldering errors. The design of cover plate 7 simplifies clamping operations while providing sufficient downward pressure to ensure the strength of the solder joint. The overall design considers various problems that may occur during the soldering process and effectively solves them through structural optimization and material selection.

[0048] This fixture is used for soldering the pins of component 4 to both sides of PCB board 5. The operation process involves first positioning PCB board 5 at an angle into the limiting groove of base 9. Point F of base 9 limits the side wall at point d of PCB board 5, and point E supports the uncompacted areas on both sides of the pin header of PCB board 5. Because PCB board 5 experiences significant downward pressure during soldering, points C and H of base 9 are designed to support points b and c of PCB board 5 respectively to maintain overall balance. After PCB board 5 is positioned, the head post a of component 4 is placed into the V-shaped limiting groove B of base 9 (because there is a certain angular deviation between the square key of component 4 and post a, positioning is only possible based on post a). Simultaneously, the flange of component 4 is vertically placed into the flange limiting point G of base 9, with the square key supported by point D of base 9. Since machining cannot achieve the precision required to completely limit the flange, the flange limiting groove is enlarged in the design, relying on the male and female connectors... The mechanism consisting of rivet-nut 1, spring 2, and nylon Phillips head screw 8 pushes component 4 to the ideal welding position to achieve a limiting effect. After the PCB board 5 and component 4 are fully limited, the cover plate 7 is flipped. To simplify the fastening process of the cover plate 7, a ball plunger 3 is placed at point A of the base 9, and two holes are designed at point I of the cover plate 7. The fastening can be completed by simply flipping the cover plate 7 to contact the base 9, which is a one-step process. Considering the magnitude of the force required for fastening, a certain chamfer is designed at the hole at point I to facilitate the entry and locking of the ball plunger 3. The magnitude of the force required for fastening can also be changed by changing the length of the ball plunger 3. After the cover plate 7 is fastened, it will press down on both component 4 and PCB board 5. The head of component 4 is pressed down by point V of the cover plate 7, and both sides of the PCB board 5 are also pressed down by the cover plate 7. Considering that the PCB board 5 needs to be welded on both sides, a structure at point VI is designed on the cover plate 7 to ensure the stability of welding after the fixture is flipped. After the cover plate 7 is engaged, welding begins with the base 9 facing down. First, the front side of the PCB board 5 is welded. After the front side is welded, the entire fixture is flipped so that the cover plate 7 faces down. The fixture is then supported by structures at points II and IV of the cover plate 7. Welding of the back side of the PCB board 5 then begins. After welding, the entire fixture can be opened by moving the structure at point III of the cover plate 7 to remove the finished product. This process is repeated. Because the fixture is made of mold steel, it is relatively heavy, which increases the overall stability of the fixture and prevents it from wobbling. Considering ease of use during welding, the dimensions of non-functional structures in the fixture are minimized, and sufficient space is provided for the hands and soldering iron tip for easy welding.

[0049] This fixture design fully considers various requirements during the welding process. Positioning of the PCB board 5 is more precise through oblique placement into the limiting groove of the base 9. The design at points F and E of the base 9 ensures the stability of the PCB board 5 during welding. The support design at points C and H further enhances the balance of the PCB board 5. For the positioning of component 4, the design of the V-shaped limiting groove at point B and the flange limiting point G ensures the stability of component 4 during welding. The mechanism consisting of a female rivet-nut 1, a spring 2, and a nylon Phillips head screw 8 provides sufficient clamping force to ensure the strength of the weld. The design of the cover plate 7 simplifies the clamping operation while providing sufficient downward pressure to ensure the strength of the weld. The overall design considers various problems that may occur during welding and effectively solves them through structural optimization and material selection. The material selection and quality design of the fixture further enhance its stability and durability. The overall design not only improves welding efficiency but also ensures welding quality, and has broad application prospects.

[0050] The innovations of this utility model are as follows: 1. The use of a ball-head plunger 3 for fastening, together with the cover plate 7, simultaneously limits the PCB board 5 and the device 4 in the vertical direction, so that opening and closing the cover plate 7 only requires one step. At the same time, the pressing force of the cover plate 7 can be adjusted by adjusting the plunger's insertion depth, thereby improving welding efficiency; 2. The addition of a male and female rivet-nut 1 to the base 9, together with the spring 2, forms an elastic structure that can improve the front and rear limiting accuracy of the device 4; 3. The cover plate 7 is designed with two extension structures that are convenient for hand handling, improving operational convenience.

[0051] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. An EPON welding fixture, characterized in that, include: The base (9) is used to support and position the PCB board (5) and the device (4). The base (9) is provided with an edge limiting structure for positioning the tail of the PCB board (5), a V-shaped groove for positioning the head column of the device (4), and a flange limiting groove for limiting the device (4). PCB board (5) is placed on the base (9) and positioned by the edge limiting structure; device (4) is placed on the base (9) and its head column is positioned in the V-shaped groove. The cover plate (7) is foldably connected to the base (9) to provide downward pressure to clamp the PCB board (5) and the device (4) after they are positioned. The fastening mechanism includes a ball-head plunger (3) disposed between the base (9) and the cover plate (7); the clamping mechanism is disposed on the base (9) and is used to push the device (4) to the bottom of the flange limit and apply a stable clamping force after the device (4) is positioned.

2. The EPON welding fixture according to claim 1, characterized in that, The base (9) is provided with multiple support structures to support the areas on both sides of the pin header of the PCB board (5) where there are no components, and to prevent the PCB board (5) from shaking during the soldering process.

3. The EPON welding fixture according to claim 1, characterized in that, The clamping mechanism includes a female rivet-nut (1) and a spring (2), which are used in conjunction with a nylon Phillips head screw (8).

4. The EPON welding fixture according to claim 1, characterized in that, The edge limiting structure is a contour groove set on the base (9) to outline the contour of the PCB board (5) and position its tail.

5. The EPON welding fixture according to claim 1, characterized in that, The cover plate (7) is provided with holes that cooperate with the ball plunger (3), and the cover plate (7) can be quickly fastened to the base (9) by flipping it.

6. The EPON welding fixture according to claim 5, characterized in that, The orifice is chamfered to facilitate the entry and locking of the ball-head plunger (3).

7. The EPON welding fixture according to claim 4, characterized in that, The cover plate (7) is rotatably connected to the base (9) by a cylindrical pin (6).

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