PON-MAC device welding tool

Abstract

The utility model relates to a PON-MAC device welding tool which comprises a base, and the base is divided into a device transmitting end welding area and a device receiving end welding area which are used for supporting and positioning a PCB and a device in the two corresponding areas respectively. The number of the cover plates is two, the two cover plates are arranged in the two areas respectively, the cover plates press the PCB through overturning and fix the PCB, and the flexible plate bending plate is arranged in the device transmitting end welding area in an overturning mode; wherein the base is provided with a round hole and a flange groove which are used for fixing a device. The flexible board bending device is compact and reasonable in structure and convenient to operate, and accurate positioning and fixing of a PCB, a flexible board and a device and flexible bending of the flexible board are achieved through the base, the cover board, the flexible board bending board and other components which are precisely designed and the connection relation of the components. Precise positioning is achieved through the structures such as the circular column, the limiting groove and the U-shaped boss, and the welding precision is remarkably improved; due to the design of the flexible plate bending plate, the bending operation of the flexible plate is simplified, and the welding consistency is ensured.

Description

Technical Field

[0001] This utility model relates to the field of communication equipment manufacturing technology, and in particular to welding fixtures for PON-MAC devices. Background Technology

[0002] In the field of optical communication equipment manufacturing, the soldering of PON-MAC devices is a critical process, and its soldering quality directly affects the performance and reliability of the devices. Currently, after the flexible circuit board (FPCB) is soldered to the PCB, due to the lack of specialized device soldering fixtures, soldering is usually carried out using rectangular iron blocks without any positioning function and adhesive tape. This traditional method has many technical problems, seriously affecting soldering efficiency and quality.

[0003] First, traditional methods lack effective positioning capabilities, making it difficult to precisely control the relative positions of the PCB, flexible board, and components during the soldering process. Without dedicated fixtures for fixation, soldering relies solely on manual adjustments by the operator. The instability of human hands can lead to misalignment, affecting soldering accuracy. This is particularly problematic during the soldering of the transmitter and receiver ends of components, as they are not on the same plane, making it difficult to ensure accurate alignment of solder joints manually, easily resulting in poor soldering or cold solder joints.

[0004] Secondly, the traditional method of using rectangular iron blocks and tape for fixing is not only cumbersome but also yields poor results. The adhesiveness of the tape weakens over time and is prone to failure in high-temperature soldering environments, causing displacement of the PCB board or components during soldering. Furthermore, the use of tape may damage the gold fingers on the PCB board, affecting the electrical performance of the components.

[0005] Furthermore, traditional methods cannot meet the requirement of a fixed soldering sequence. Due to the unique structure of PON-MAC devices, the soldering sequence must strictly adhere to the order of soldering the transmitter first, followed by the receiver. However, traditional methods lack a control mechanism for the soldering sequence, making it easy for operators to disrupt the sequence due to negligence or improper operation, thereby affecting the soldering quality.

[0006] Furthermore, traditional methods have significant shortcomings in bending and shaping flexible circuit boards. Due to the lack of dedicated bending tools, operators must manually bend the board during welding, which not only increases the difficulty of operation but also easily leads to deformation or damage due to improper force control. Especially when welding to the receiving end of a device, the board needs to be precisely bent to fit the device; manual operation makes it difficult to ensure consistent bending angles, thus affecting the stability and reliability of the welding process.

[0007] In summary, the existing technology has the following specific technical problems:

[0008] Lack of precise positioning capabilities: Traditional methods cannot accurately position PCBs, flexible boards, and components, leading to soldering misalignment and insufficient precision.

[0009] Poor fixation: The fixation method relying on tape is unstable, easily affected by high temperature environments, and may damage the gold finger part.

[0010] Uncontrollable welding sequence: The lack of a fixed mechanism for the welding sequence makes it easy to make mistakes in the welding sequence due to improper operation.

[0011] Flexible boards are difficult to bend: It is difficult to ensure consistent angles when bending flexible boards manually, which can easily lead to deformation or damage to the boards.

[0012] These problems severely restrict the efficiency and quality of PON-MAC device welding, and there is an urgent need for a special welding fixture that can solve the above-mentioned technical problems.

[0013] Therefore, we propose a PON-MAC device soldering fixture. Utility Model Content

[0014] In response to the shortcomings of the existing production technology, the applicant provides a PON-MAC device welding fixture. Through the precise design of components such as the base, cover plate, and flexible board bending plate and their connection relationships, the fixture achieves precise positioning and fixation of the PCB board, flexible board and device, as well as flexible bending of the flexible board.

[0015] The technical solution adopted in this utility model is as follows:

[0016] The PON-MAC device soldering fixture has the following structure:

[0017] The base is divided into two areas: a device transmitter welding area and a device receiver welding area, which are used to support and position the PCB board and the device in the two corresponding areas, respectively.

[0018] Two cover plates are respectively installed in two areas, and the cover plates press and fix the PCB board by flipping.

[0019] The flexible board bending plate is flipped and set in the soldering area of ​​the device transmitter. The flexible board bending plate includes a guide surface that is adapted to the shape of the PCB flexible board to achieve bending and shaping.

[0020] The base has circular holes and flange grooves for fixing the components.

[0021] In one embodiment, the device transmitter welding area of ​​the base is provided with a circular column for engaging with openings in the PCB board to achieve precise positioning.

[0022] In one embodiment, the base has a U-shaped boss around the circular column.

[0023] In one embodiment, the cover plate is provided with a cushioning material to protect the gold finger portion on the PCB board from high-temperature damage during the soldering process.

[0024] In one embodiment, the cover plate is also connected to a knurled small-head screw, which is connected to the pressure plate via a hook spring to adjust the clamping force of the cover plate to accommodate PCBs and devices of different sizes.

[0025] In one embodiment, the center of the base provides sufficient space for the densely packed components on the PCB board to ensure that the components are not touched during the soldering process.

[0026] In one embodiment, the device receiving end welding area of ​​the base is provided with a base positioning point and a base support point, which are used to support the PCB board and ensure that the PCB board is at a 90° angle with the fixture.

[0027] In one embodiment, the flexible plate bending plate is connected to the fixture body via a rotating shaft, and can be freely rotated to achieve bending and shaping of the flexible plate.

[0028] In one embodiment, the cover plate is rotatably connected to the base by a cylindrical pin.

[0029] The beneficial effects of this utility model are as follows:

[0030] This utility model features a compact and rational structure, and is easy to operate. Through the precise design of components such as the base, cover plate, and flexible plate bending plate, and their interconnections, it achieves accurate positioning and fixation of the PCB board, flexible plate, and components, as well as flexible bending of the flexible plate. Its beneficial effects are mainly reflected in: precise positioning achieved through structures such as circular pillars, limiting grooves, and U-shaped bosses, significantly improving welding accuracy; the design of the flexible plate bending plate simplifies the bending operation of the flexible plate, ensuring welding consistency; strict welding sequence control and optimized process flow further improve welding efficiency and quality; the overall structure is stable and easy to operate, meeting the high efficiency and reliability requirements of manual welding. These advantages make this fixture of significant application value in the welding of PON MAC devices.

[0031] In addition, this utility model also has the following advantages:

[0032] This embodiment utilizes a precision structure on the base 9, including a circular post C, a limiting groove D, a circular hole A, and a U-shaped boss B, to achieve precise positioning of the PCB board, flexible board, and components. The engagement of the circular post C with the opening on the PCB board ensures horizontal positioning, while the limiting groove D vertically fixes the gold fingers. The U-shaped boss B provides a 15° adjustable space for the components, effectively solving the misalignment problem caused by solder joint angle errors during soldering. Furthermore, the cover plate, with its knurled small-head screws and hook spring clamping structure, further ensures the stability of the PCB board during soldering, preventing shaking or displacement caused by manual operation. This precise positioning and fixing mechanism significantly improves soldering accuracy and reduces the occurrence of poor soldering or cold solder joints.

[0033] This embodiment features a flexible plate bending plate. Through its engagement with the base I at point L, precise bending and shaping of the flexible plate is achieved. One end of the bending plate is connected to the base 9 via a hook spring, while the other end can be freely flipped. The operator simply bends the flexible plate at a certain angle and then flips the bending plate to complete the shaping. This design not only simplifies the operation but also ensures the consistency of the bending angle, avoiding deformation or damage to the flexible plate caused by improper force control during manual bending. Especially during device receiving end soldering, the flexible plate can precisely fit the device, further improving the consistency and reliability of the soldering.

[0034] This embodiment divides the fixture into a transmitter (M) welding section and a receiver (N) welding section, and strictly defines the welding sequence (welding the transmitter first, then the receiver), effectively avoiding welding sequence errors caused by improper operation. The flange limiting groove H on the base 9 and the PCB board head positioning structure (at points F and G) ensure that the PCB board and fixture form a 90° angle during receiver welding, further optimizing the welding process. In addition, the cushioning material and high-temperature tape on the cover plate provide space to protect the gold fingers, preventing high-temperature damage during welding. This design not only improves welding efficiency but also ensures the stability of welding quality.

[0035] The fixture in this embodiment is made of mold steel. The base 9, cover plate, flexible bending plate, and other components are tightly fitted together by connecting parts such as cylindrical pins, knurled small-head screws, and hook springs, forming a stable yet flexible overall structure. The combination of knurled small-head screws and hook springs allows the cover plate to be clamped in a single step, and the screw tightness can be adjusted to accommodate PCBs and components of different sizes. The design of the flexible bending plate fully considers the flexibility of the flexible board and the welding requirements, resulting in simple operation and high stability. This structural design not only improves the convenience of welding operations but also ensures that the fixture will not shift or deform during the welding process. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of this utility model.

[0037] Figure 2 This is an exploded schematic diagram of this utility model.

[0038] Figure 3 This is a schematic diagram of the base structure in this utility model.

[0039] Figure 4 This is a schematic diagram of the flexible plate bending structure of this utility model.

[0040] Figure 5 This is a schematic diagram of the device structure in this utility model.

[0041] In the diagram: 1. PCB board; 2. Receiver flexible board; 3. Transmitter flexible board; 4. Component; 5. Hook spring; 6. Knurled small head screw; 7. Cover plate; 8. Flexible board bending plate; 9. Base; 10. Cylindrical pin; A. Circular hole; B. Bottom of U-shaped groove; C. Circular column; D. Limiting groove; E. Plane; F. Base positioning point; G. Base support point; H. Flange groove; I. Base limiting point; J. Base placement point; K. Guide surface; L. Limiting surface; M. Component transmitter; N. Component receiver. Detailed Implementation

[0042] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0043] like Figures 1-5 As shown, this embodiment discloses a PON-MAC device soldering fixture. This fixture is ingeniously designed and structurally sound, effectively improving the efficiency and accuracy of soldering operations. The overall fixture is divided into a device transmitter soldering area and a device receiver soldering area. One part is used for soldering the device transmitter M, which is positioned by the opening on the PCB board 1, both sides of the gold fingers, and the pre-drilled circular hole A for device 4. The other part is used for soldering the device receiver N. In this part, the PCB board 1 is positioned by the head and cover plate 7, and device 4 is positioned by the flange groove H pre-drilled for the flange. Due to the inherent structure of device 4, the soldering sequence cannot be changed; the device transmitter M should be soldered first, followed by the device receiver N. Since the device transmitter M and the device receiver N are not on the same plane, a flexible bending plate 8 is designed in the part where the device receiver N is soldered to bend the flexible receiving plate 2 so that it fits snugly against the device receiver N for manual soldering. Through a series of precisely designed components and their interconnections, the PCB board 1 and device 4 are accurately positioned and fixed, and the flexible board is flexibly bent, thus meeting the needs of manual soldering.

[0044] This fixture mainly consists of a PCB board 1, a receiver flexible plate 2, a transmitter flexible plate 3, components 4, hook springs 5, knurled small head screws 6, a cover plate 7, a flexible plate bending plate 8, a base 9, and cylindrical pins 10. These components are cleverly combined and connected to form a welding fixture that is both stable and flexible.

[0045] Specifically, the base 9 is divided into two areas: a device transmitter welding area and a device receiver welding area. These areas support and position the PCB board 1 and the device 4, respectively. Two cover plates 7 are installed in the two areas, and the cover plates 7 press down on and fix the PCB board 1 by flipping. A flexible plate bending plate 8 is flipped and installed in the device receiver welding area. The flexible plate bending plate 8 includes a guide surface K and a limiting surface L that are adapted to the shape of the receiver flexible plate 2 to achieve bending and shaping.

[0046] like Figures 1-5 As shown, the base 9 has a circular hole A and a flange groove H for fixing the device 4. The device transmitting end welding area of ​​the base 9 has a circular post C for mating with the openings in the PCB board 1 to achieve precise positioning. A U-shaped boss B is provided around the circular post C on the base 9 to prevent the device 4 from being misaligned during welding and to provide adjustable space for the device 4. The cover plate 7 has cushioning material to protect the gold fingers on the PCB board 1 from high-temperature damage during welding. A knurled small-head screw 6 is connected to the pressure plate via a hook spring 5 to adjust the clamping force of the cover plate 7 to accommodate different sizes of PCB boards 1 and devices 4. The middle of the base 9 provides sufficient space for the densely packed components on the PCB board 1, ensuring that the components are not rubbed during welding. The device receiving end welding area of ​​the base 9 has a base positioning point F and a base support point G to support the PCB board 1 and ensure that the PCB board 1 forms a 90° angle with the clamp. The flexible plate bending plate 8 is connected to the fixture body via a rotating shaft, and can be freely rotated to achieve bending and shaping of the receiving flexible plate 2. The cover plate 7 is rotatably connected to the base 9 via a cylindrical pin 10, and is also connected with a knurled small-head screw 6 for further fixation.

[0047] Specifically, the base 9 is the fundamental component of the entire fixture, divided into the device transmitter M welding section and the device receiver N welding section. The base 9 is equipped with structures such as a circular column C, a limiting groove D, a circular hole A, a U-shaped boss B, a flange limiting groove H, a base positioning point F, a base support point G, and a base limiting point I, used for positioning and supporting the PCB board 1 and the device 4. The cover plate 7 is connected to the base 9 via knurled small-head screws 6 and a hook spring 5, used to fix the PCB board 1. The flexible plate bending plate 8 is connected to the base 9 via the hook spring 5, used to bend and shape the receiver flexible plate 2; its limiting surface L cooperates with the base limiting point I to limit excessive flipping of the flexible plate bending plate 8. A cylindrical pin 10 is used to connect the base 9 and the cover plate 7, ensuring smooth flipping of the cover plate 7.

[0048] In the soldering area of ​​the device's transmitting end, the raised circular post C on the base 9 mates with the opening on the PCB board 1, achieving precise positioning of the PCB board 1. Simultaneously, the gold finger portion is embedded in the corresponding limiting groove D of the base 9, further securing the PCB board 1. The U-shaped boss B provides adjustable space for the device 4, ensuring accurate alignment of the solder joints with the flexible circuit board solder joints. The cover plate 7 is firmly pressed onto the PCB board 1 by knurled small-head screws 6, hook springs 5, and pressure plates to prevent movement and protect the gold finger portion from high-temperature damage.

[0049] In the soldering area of ​​the receiving end of the device, the head of PCB board 1 is positioned against the base positioning point F, and the opening is close to the base support point G to support the entire PCB board 1, ensuring a 90° angle with the fixture. The flange portion of device 4 is positioned in the flange limiting groove H of the base 9. The flexible plate bending plate 8 is connected by a rotating shaft and can be freely rotated to achieve bending and shaping of the receiving end flexible plate 2. During the soldering process, the limiting surface L of the flexible plate bending plate 8 is restricted by the base limiting point I to prevent excessive rotation from causing PCB board 1 to warp.

[0050] All components of the entire tooling fixture work together closely. Through precise fitting and connection, they form a welding fixture that is both stable and flexible. During the welding process, these components work together to ensure the precise positioning and fixation of PCB board 1 and device 4, as well as the flexible bending of the flexible board, thereby improving the efficiency and accuracy of the welding operation.

[0051] In summary, the manual welding fixture described in this specific embodiment has advantages such as reasonable structure, simple operation, and strong stability. It can meet the needs of various manual welding operations and effectively improve welding efficiency and accuracy.

[0052] The specific working principle is as follows: The base 9 is divided into a device transmitter M welding section and a device receiver N welding section. The welding sequence is to weld the transmitter M first, and then weld the receiver N. First, a raised circular post C is set on the device transmitter M section to be used for positioning at the opening of the PCB board 1. The PCB board 1 is manually fitted into the circular post C of the base 9 at the opening, and the gold finger part is embedded into the corresponding limiting groove D of the base 9. After the PCB board 1 is completely positioned, the cover plate 7 is flipped to fix the PCB board 1. After the PCB board 1 is fixed, the back of the device transmitter M is aligned with the bottom B of the U-shaped groove, and the device 4 is placed into the circular hole A of the base 9. The solder joints of the device transmitter M are aligned with the solder joints of the transmitter flexible plate 3 and then soldered. After the device transmitter M is soldered, the cover plate 7 is flipped to remove the entire soldered part. The entire soldered part is placed into the device receiver N welding section according to the position shown in the figure. The head of the PCB board 1 is placed close to the positioning point F of the base for positioning, and the opening is placed close to the support point G of the base for support. The entire PCB board 1 is supported, and at the same time, the flange of component 4 is placed into the corresponding flange groove H to position component 4. After component 4 and PCB board 1 are positioned, the operator first flips the cover plate 7 to fix PCB board 1. To protect the gold finger part, space is reserved on both the cover plate 7 and the base 9 for attaching some flexible material to achieve a buffering protection effect. When the cover plate 7 is flipped, it will first touch the plane E, and the buffer material on the cover plate 7 will touch the gold finger part. Then, the receiving end flexible plate 2 is first bent at a certain angle, and then the flexible plate bending plate 8 is flipped so that its limiting surface L and guide surface K bend and shape the receiving end flexible plate 2. After the receiving end flexible plate 2 is shaped and fixed to PCB board 1, the solder joints can be aligned and soldered. After the soldering is completed, the entire fixture can be picked up and placed through the pick-up and drop point J of the base 9.

[0053] 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. A PON-MAC device soldering fixture, characterized by, It includes: The base is divided into two areas of device emitting end welding and device receiving end welding, respectively used for supporting and positioning PCB board and device in the corresponding area; Two cover plates are arranged in the two areas respectively, and the cover plates are turned over to press and fix the PCB board, The flexible plate bending plate is arranged in the device emitting end welding area, and the flexible plate bending plate contains a guide surface matched with the shape of the PCB flexible plate to realize bending and shaping; Wherein, the base is provided with a circular hole and a flange groove for fixing the device.

2. The PON-MAC device bonding tooling of claim 1, wherein, The device emitting end welding area of the base is provided with a circular column for cooperating with the opening of the PCB board to realize accurate positioning.

3. The PON-MAC device bonding tooling of claim 2, wherein, The base is provided with a U-shaped boss around the circular column.

4. The PON-MAC device bonding tooling of claim 1, wherein, The cover plate is provided with a buffer material for protecting the gold finger part on the PCB board from high temperature damage during welding.

5. The PON-MAC device bonding tooling of claim 1, wherein, The cover plate is also connected with a knurled head screw, which is connected with a pressing plate through a hook spring, used to adjust the pressing force of the cover plate to adapt to different sizes of PCB board and device.

6. The PON-MAC device bonding tooling of claim 1, wherein, The middle part of the base leaves enough space for the densely arranged components on the PCB board to ensure that the components will not be scratched during welding.

7. The PON-MAC device bonding tooling of claim 1, wherein, The device receiving end welding area of the base is provided with a base positioning part and a base supporting part for supporting the PCB board and ensuring that the PCB board forms a 90° angle with the clamp.

8. The PON-MAC device bonding tooling of claim 1, wherein, The flexible plate bending plate is connected with the clamp body through a rotating shaft and can be freely turned over to realize bending and shaping of the flexible plate.

9. The PON-MAC device bonding tooling of claim 1, wherein, The cover plate is connected with the base through a cylindrical pin.

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