Tool clamp suitable for manual welding

Abstract

The utility model relates to a work fixture suitable for manual welding, which comprises a base used for supporting and positioning a workpiece, the base is provided with a groove matched with the outline of a PCB (Printed Circuit Board) and a TOSA / ROSA fixing position matched with a TOSA / ROSA device, and the inner wall of the groove is provided with a plurality of PCB bearing plates; the pressing plate comprises a PCB pressing plate and a TOSA / ROSA pressing plate and is used for simultaneously limiting the PCB, the TOSA device and the ROSA device in the vertical direction; and the pressing device is rotationally connected to the base and used for pressing the pressing plate through rotation. The PCB welding jig is compact and reasonable in structure and convenient to operate, accurate positioning and stable supporting of a PCB and an optical device are achieved through the design of the groove, the PCB bearing plate, the auxiliary base plate and the TOSA / ROSA fixing position on the base, and the welding accuracy and the finished product yield are remarkably improved. And due to the design of the integrated pressing plate and the spring plunger, the operation steps are simplified, and the welding efficiency and the operation convenience are improved. Due to the adjustable design of the pressing device, the clamp can adapt to workpieces with different thicknesses and hardness, and the universality and flexibility of the clamp are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of communication module manufacturing technology, and in particular to a tooling fixture suitable for manual welding. Background Technology

[0002] In the manufacturing process of optical communication modules, the soldering of the PCB board to TOSA (Transmitter Optical Sub-Assembly) and ROSA (Receiver Optical Sub-Assembly) devices is a critical step. As core components of the optical communication module, the quality of the connection between the TOSA and ROSA and the PCB board directly affects the module's performance and reliability. However, in actual manual soldering processes, numerous technical problems exist, severely impacting soldering efficiency and finished product yield.

[0003] First, precise positioning of the PCB board and TOSA / ROSA devices is a challenge. Because PCB boards are typically covered with various components and gold finger areas, traditional fixture designs struggle to provide stable support and positioning without disturbing these areas. Especially during soldering, the PCB board is prone to wobbling or shifting, leading to inaccurate soldering positions and consequently affecting soldering quality. Furthermore, the varying shapes and sizes of TOSA and ROSA devices make it difficult for traditional fixture designs to effectively limit the movement of devices with different shapes, further increasing the difficulty of soldering.

[0004] Furthermore, a low tolerance for error during the welding process is a common problem. Since operational errors or installation deviations are inevitable in manual welding, traditional fixture designs often cannot effectively compensate for these errors, leading to decreased welding accuracy. This problem is particularly prominent in mass production, severely impacting production efficiency and finished product yield.

[0005] Finally, the operation of traditional fixtures is relatively cumbersome, increasing the workload of operators. Especially when double-sided soldering is required, traditional fixtures often need to be adjusted and repositioned multiple times, resulting in low soldering efficiency. In addition, traditional fixtures have poor versatility and are difficult to adapt to different PCB board sizes and TOSA / ROSA devices, further limiting their application range.

[0006] In summary, existing technologies suffer from several technical problems, including inaccurate positioning of the PCB board and TOSA / ROSA devices, unadjustable clamping force, low soldering tolerance, and cumbersome operating procedures. These issues severely impact the soldering quality and production efficiency of optical communication modules. Therefore, a novel tooling fixture is urgently needed to address these problems, improve soldering accuracy, increase finished product yield, and simplify operating procedures.

[0007] Therefore, we propose a tooling fixture suitable for manual welding. Utility Model Content

[0008] To address the shortcomings of existing production technologies, the applicant provides a tooling fixture suitable for manual welding. Through the design of grooves on the base, PCB support plate, auxiliary pad, and TOSA / ROSA fixing positions, it achieves precise positioning and stable support for PCB boards and optical devices, significantly improving welding accuracy and product yield.

[0009] The technical solution adopted in this utility model is as follows:

[0010] A tooling fixture suitable for manual welding, comprising:

[0011] The base is used to support and position the workpiece. The base has grooves that match the contour of the PCB board and TOSA / ROSA fixing positions that cooperate with TOSA / ROSA devices. The inner wall of the groove has multiple PCB support plates.

[0012] Pressure plates, including PCB pressure plates and TOSA / ROSA pressure plates, are used to simultaneously limit the PCB board and TOSA / ROSA devices in the vertical direction;

[0013] The clamping device is rotatably connected to the base and is used to clamp the pressure plate by rotating it.

[0014] In one embodiment, the TOSA / ROSA mounting position is provided with a V-shaped groove and a trapezoidal groove for radially positioning the device and for axially positioning the device via a keyway.

[0015] In one embodiment, the TOSA / ROSA pressure plate has through holes corresponding to the positions of the TOSA and ROSA devices, and a spring plunger is inserted into the through hole.

[0016] In one embodiment, the clamping device includes a clamping plate, a positioning bolt, a washer, and a nut. The nut is disposed on the inner wall of the opening in the base. The positioning bolt is threadedly connected to the nut. The clamping plate and the washer are located between the positioning bolt and the nut.

[0017] In one embodiment, the lower end of the gasket is provided with a heightening pad to facilitate adjustment of the height of the clamping device to accommodate workpieces of different thicknesses.

[0018] In one embodiment, an auxiliary pad is also included, which is disposed in a groove in the base and contacts the PCB board.

[0019] In one embodiment, the pressure plate is rotatably connected to one side of the base by a rotating pin.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model features a compact and reasonable structure, and is easy to operate. Through the design of the groove on the base, the PCB support plate, the auxiliary pad, and the TOSA / ROSA fixing position, it achieves precise positioning and stable support for the PCB board and optical components, significantly improving welding accuracy and finished product yield. The integrated pressure plate and spring plunger design simplifies the operation steps, improving welding efficiency and ease of operation. The adjustable design of the clamping device allows the fixture to adapt to workpieces of different thicknesses and hardnesses, enhancing its versatility and flexibility. Furthermore, the overall flip-up design of the fixture further improves welding efficiency, making it particularly suitable for high-volume production environments. In summary, this tooling fixture not only solves the technical problems of traditional fixtures but also significantly improves welding quality and production efficiency, demonstrating broad application prospects.

[0022] In addition, this utility model also has the following advantages:

[0023] The fixture in this embodiment achieves precise positioning and stable support for the PCB board through the design of PCB board contour grooves, PCB support plates, and auxiliary pads on the base. Multiple support plates on the inner wall of the grooves effectively avoid components and gold finger areas on the PCB board, ensuring that the PCB board does not wobble or shift during soldering. Simultaneously, the auxiliary pads further enhance the support effect of the PCB board, dispersing soldering stress and preventing PCB board deformation or damage. Furthermore, the design of the TOSA / ROSA fixing positions, including V-grooves, trapezoidal grooves, and keyways, can precisely limit the radial and axial positioning of TOSA / ROSA devices of different shapes and sizes, ensuring accurate soldering positions between the devices and the PCB board. This design significantly improves soldering accuracy, reduces soldering defect rates, and thus improves the yield of the finished product.

[0024] The integrated clamping plate design in this embodiment, including a PCB clamping plate and a TOSA / ROSA clamping plate, enables simultaneous positioning and fixation of the PCB board and optical components, simplifying the operation process. The spring plunger design further improves the fixture's tolerance, effectively offsetting accuracy issues caused by machining errors or installation deviations, ensuring stability and consistency during the welding process. Furthermore, the adjustable design of the clamping device, including a clamping plate, positioning bolts, washers, and nuts, allows for flexible adjustment of the clamping force according to actual needs, adapting to PCB boards and optical components of varying thicknesses and hardness. This design not only improves welding efficiency but also reduces operator workload, making it particularly suitable for high-volume production environments.

[0025] The fixture design in this embodiment fully considers the needs of PCB boards and TOSA / ROSA devices of different specifications, exhibiting high versatility and flexibility. The grooves on the base and the TOSA / ROSA fixing positions can accommodate PCB boards and optical devices of various shapes and sizes. The adjustable design of the clamping device allows the fixture to adapt to workpieces of different thicknesses and hardnesses, further enhancing its applicability. Furthermore, the overall flip-up design of the fixture allows operators to easily perform double-sided welding, greatly improving welding efficiency. This design is not only suitable for small-batch production or R&D stages but can also quickly adapt to the needs of mass production, demonstrating broad application prospects. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is an exploded view of the present invention.

[0028] In the diagram: 1. Workpiece; 2. Locating bolt; 3. Pressure plate; 4. Washer; 5. Base; 6. Nut; 7. Spring plunger; 8. Rotating pin; 9. Pressure plate;

[0029] 501. Auxiliary pad; 502. PCB support plate; 503. TOSA / ROSA mounting position;

[0030] 901, PCB pressure plate; 902, TOSA / ROSA pressure plate. Detailed Implementation

[0031] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0032] like Figures 1-2 As shown, this embodiment discloses a fixture suitable for manual welding, whose structure includes a base 5, a pressure plate 9, a clamping device, and a spring plunger 7. Its main purpose is to provide a fixture for welding PCB boards and TOSA / ROSA devices in workpiece 1, improving the yield of finished products, simplifying operation steps as much as possible, and increasing welding error tolerance while improving welding efficiency. The design of this fixture fully considers various problems that may be encountered during manual welding, such as inaccurate PCB board positioning, TOSA / ROSA device installation deviation, and shaking during welding. Through integrated design and an adjustable clamping device, these problems can be effectively solved, thereby improving welding quality and efficiency. Furthermore, this fixture is particularly suitable for welding needs in small-batch production or R&D stages, and can quickly adapt to different specifications of PCB boards and optical devices, exhibiting high versatility and flexibility.

[0033] Among them, such as Figure 1 and Figure 2As shown, to position the PCB board in workpiece 1, a groove with the outline of the PCB board is made in the base 5. Multiple PCB support plates are designed on the inner wall of the groove to support the entire PCB board while avoiding the component placement area and the gold finger placement area. Simultaneously, the semi-circular openings on both sides of the PCB board are used for positioning and installation. This limits positioning while reasonably controlling the spacing to prevent the PCB board from shaking and affecting the soldering quality. An auxiliary pad 501 is also placed in the groove, which, together with the PCB support plates, further improves the support effect. (PCB board positioning is a crucial step in the soldering process, directly affecting the soldering accuracy and the yield of the finished product. By making a groove on the base that matches the outline of the PCB board and designing multiple support plates, the stability of the PCB board during soldering can be ensured, avoiding soldering deviations caused by shaking. Furthermore, the design of the auxiliary pad 501 further enhances the support effect of the PCB board, especially during the soldering process, effectively dispersing soldering stress and preventing deformation or damage to the PCB board. This design not only improves the soldering accuracy but also extends the service life of the PCB board.)

[0034] like Figure 2 As shown, TOSA / ROSA fixing positions are simultaneously provided on the groove for limiting the positioning of the TOSA and ROSA devices. To accommodate the shape of the TOSA / ROSA, V-shaped and trapezoidal grooves are designed on the fixing positions to limit the devices radially, and a keyway further limits their axial positioning. After the workpiece 1 is fully positioned by the base, the flipping pressure plate 9 simultaneously presses down on the TOSA and ROSA devices and the PCB board. (Precise positioning of the TOSA and ROSA devices is crucial for ensuring the performance of the optical communication module. By designing V-shaped and trapezoidal grooves on the base, the radial and axial movement of the devices can be effectively limited, ensuring accurate soldering positions between the devices and the PCB board. Furthermore, the flipping pressure plate design allows the TOSA and ROSA devices to be firmly fixed to the PCB board during soldering, preventing device displacement or detachment due to soldering thermal stress. This design not only improves soldering accuracy but also reduces post-soldering adjustments, significantly increasing production efficiency.)

[0035] In this embodiment, the pressure plate 9 includes a PCB pressure plate 901 for positioning the PCB board and a TOSA / ROSA pressure plate 902 for positioning the components. The pressure plate 9 is rotatably connected to one side of the base 5 via a rotating pin 8. Simultaneously, an auxiliary pad 501 cooperates with the PCB pressure plate 901 on the pressure plate 9 to improve the fixing effect on the PCB board. The TOSA / ROSA pressure plate 902 has through holes corresponding to the positions of the TOSA / ROSA components, and spring plungers 7 are inserted into these through holes to press down on the TOSA / ROSA components, achieving a repositioning effect while also offsetting accuracy deviations and improving the fault tolerance rate. By integrating the PCB pressure plate 901 and the TOSA / ROSA pressure plate 902 onto a single pressure plate, the positioning and fixing of both the PCB board and optical components can be achieved simultaneously, greatly simplifying the operation steps. The design of the spring plunger 7 further improves the fault tolerance rate of the fixture, effectively offsetting accuracy problems caused by processing errors or installation deviations, ensuring stability and consistency during the welding process. This design not only improves welding accuracy but also reduces the workload of operators, making it particularly suitable for mass production environments.

[0036] It also includes a clamping device, which is rotatably connected to the base 5 and positions the pressure plate 9 by rotation. The clamping device is designed so that the clamping force of the fixture can be adjusted according to actual needs, thus adapting to PCB boards and optical components of different thicknesses and hardnesses. By rotating the clamping device, the operator can easily fix the pressure plate 9 in the required position, ensuring the stability of the PCB board and optical components during the soldering process. This design not only improves operational convenience but also enhances the versatility of the fixture, enabling it to adapt to various different soldering requirements.

[0037] like Figure 2 As shown, the clamping device in this embodiment includes a clamping plate 3, a positioning bolt 2, a washer 4, and a nut 6. The nut 6 is disposed on the inner wall of an opening in the base 5. The positioning bolt 2 is threadedly connected to the nut 6, and the clamping plate 3 and the washer 4 are positioned between the positioning bolt 2 and the nut 6. Additionally, a height-adjusting pad is provided at the lower end of the washer 4 for easy height adjustment. The specific structural design of the clamping device fully considers the ease of operation and the adjustability of the clamping force. Through the cooperation of the positioning bolt 2 and the nut 6, the operator can easily adjust the height of the clamping plate 3, thereby achieving precise clamping of the pressure plate 9. The design of the washer 4 and the height-adjusting pad further enhances the flexibility of the clamping device, enabling it to adapt to workpieces of different thicknesses and hardnesses. This design not only improves the applicability of the fixture but also reduces the workload of the operator, making it particularly suitable for multi-variety, small-batch production environments.

[0038] Specifically, in this embodiment, after the clamping plate 3 presses down on the workpiece 1, rotating the clamping plate 3 completes the final fixation. The pressure of the clamping plate is adjusted by adjusting the descent height of the screws on the base, thus improving the tolerance for errors. After the fixture fixes the workpiece 1, the front side is welded first. After the front side is welded, the fixture is flipped over and the back side is welded in sequence, repeating this process. The design of the clamping plate 3 allows the fixture to maintain a stable clamping force during the welding process, ensuring that the PCB board and optical components do not shift or fall off during welding. By adjusting the descent height of the screws on the base, the operator can adjust the clamping force according to actual needs, thereby adapting to workpieces of different thicknesses and hardnesses. In addition, the overall flipping design of the fixture allows the operator to easily complete double-sided welding, greatly improving welding efficiency. This design not only improves welding accuracy but also reduces the workload of the operator, making it particularly suitable for mass production environments.

[0039] The flipping pressure plate, in conjunction with the clamping plate, simultaneously presses down on the components and the PCB board. Two spring plungers on the pressure plate 9 provide corresponding clamping and buffering functions. The clamping force of the clamping plate is adjusted by changing the height of the positioning bolt 2. This coordinated design of the flipping pressure plate and clamping plate allows the fixture to simultaneously position and fix the PCB board and optical components during welding, ensuring stability and consistency throughout the process. The spring plunger 7 further enhances the fixture's tolerance, effectively mitigating accuracy issues caused by machining errors or installation deviations. By adjusting the height of the positioning bolt 2, operators can adjust the clamping force according to actual needs, adapting to workpieces of varying thicknesses and hardness. This design not only improves welding accuracy but also reduces operator workload, making it particularly suitable for high-volume production environments.

[0040] In summary, this embodiment presents a tooling fixture suitable for manual soldering. 1. It uses an integrated pressure plate to simultaneously limit the PCB and optical components in the vertical direction, improving soldering efficiency. 2. The use of a clamping plate in conjunction with screws for tightening makes the clamping force adjustable and improves operational convenience. 3. The addition of screws to the integrated pressure plate makes the clamping accuracy for limiting optical components adjustable. This tooling fixture design fully considers various problems that may be encountered during manual soldering, such as inaccurate PCB positioning, installation deviations of TOSA / ROSA components, and shaking during soldering. Through its integrated design and adjustable clamping device, these problems can be effectively solved, thereby improving soldering quality and efficiency. Furthermore, this fixture is particularly suitable for soldering needs in small-batch production or R&D stages, and can quickly adapt to different specifications of PCBs and optical components, exhibiting high versatility and flexibility. This design not only improves soldering accuracy but also reduces the workload of operators, making it particularly suitable for high-volume production environments.

[0041] 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 tooling fixture suitable for manual welding, characterized in that, include: The base is used to support and position the workpiece. The base has grooves that match the contour of the PCB board and TOSA / ROSA fixing positions that cooperate with TOSA / ROSA devices. The inner wall of the groove has multiple PCB support plates. Pressure plates, including PCB pressure plates and TOSA / ROSA pressure plates, are used to simultaneously limit the PCB board and TOSA / ROSA devices in the vertical direction; The clamping device is rotatably connected to the base and is used to clamp the pressure plate by rotating it.

2. The tooling fixture suitable for manual welding according to claim 1, characterized in that, The TOSA / ROSA mounting position is provided with a V-shaped groove and a trapezoidal groove for radially positioning the device and for axially positioning the device via a keyway.

3. A tooling fixture suitable for manual welding according to claim 1, characterized in that, The TOSA / ROSA pressure plate has through holes corresponding to the positions of the TOSA and ROSA devices, and spring plungers are inserted into the through holes.

4. A tooling fixture suitable for manual welding according to claim 1, characterized in that, The clamping device includes a clamping plate, a positioning bolt, a washer, and a nut. The nut is located on the inner wall of the opening in the base. The positioning bolt is threadedly connected to the nut. The clamping plate and the washer are located between the positioning bolt and the nut.

5. A tooling fixture suitable for manual welding according to claim 4, characterized in that, The lower end of the gasket is provided with a heightening pad to facilitate adjustment of the height of the clamping device to accommodate workpieces of different thicknesses.

6. A tooling fixture suitable for manual welding according to any one of claims 1-4, characterized in that, It also includes an auxiliary pad, which is set in the groove of the base and contacts the PCB board.

7. A tooling fixture suitable for manual welding according to claim 1, characterized in that, The pressure plate is rotatably connected to one side of the base via a rotating pin.

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