Novel optical bonding anti-loosening device

Abstract

The utility model discloses a novel optical bonding anti-loosening device, which comprises a base, a workbench arranged on the base and used for placing a PCBA (printed circuit board assembly), and an elbow clamping mechanism arranged on one side of the workbench, a limiting mechanism is arranged on the other side of the workbench, and the limiting mechanism comprises a fixed table and an L-shaped limiting block arranged on the side wall of the fixed table, the guide rails are arranged between the fixed table and the workbench in pairs, the L-shaped limiting blocks are arranged on the guide rails in a sliding mode, and the guide rails are sleeved with springs; a connecting rod of the toggle clamping mechanism penetrates through a through hole formed in the middle of the workbench and abuts against the surface of the L-shaped limiting block, and a preset gap is formed between the lower surface of the extending portion of the L-shaped limiting block and the upper surface of the workbench. According to the utility model, the pressing mechanism is arranged, and the combination of the L-shaped limiting block, the guide rail and the spring is utilized, so that a station on the PCBA board after adhesive dispensing and bonding can be effectively limited, and the adhesive of the PCBA board is ensured to be prevented from expansion of adhesive and dislocation of parts in the baking process after adhesive dispensing.

Description

Technical Field

[0001] This utility model belongs to the field of communication equipment technology, and more specifically, it relates to a novel optical bonding anti-loosening device. Background Technology

[0002] In the field of optical communication, bonding the fiber optic lens to the fiber optic jumper on a PCBA board is a common process. However, existing optical bonding processes have many problems;

[0003] 1. When bonding products using existing technical solutions, the electronic components on the product are placed on the workbench and come into contact with the table, making them susceptible to damage from bumps and knocks.

[0004] 2. During product baking after adhesive dispensing, gaps may occur between the fiber optic lens and jumper cable bonding components due to adhesive flow, and misalignment may occur between the bonding components due to adhesive expansion. Currently, there is no device to limit the position of the two components during baking after the fiber optic lens and jumper cable are bonded, leading to positional deviations during product baking and affecting subsequent product use. For example, a bonding device disclosed in patent application number 202123268946.0 cannot restrict or fix the fiber optic lens and jumper cable at the bonding station during the bonding process, resulting in gaps between the bonding stations due to adhesive flow during subsequent baking of the optical components, affecting subsequent product use. Summary of the Invention

[0005] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0006] To achieve these objectives and other advantages according to the present invention, a novel optical bonding anti-loosening device is provided, comprising: a base, a worktable disposed on the base for placing a PCBA board, and further comprising: an elbow clamping mechanism disposed on one side of the worktable, and a limiting mechanism for limiting the bonding area on the PCBA board disposed on the other side of the worktable, the limiting mechanism comprising: a fixed platform, an L-shaped limiting block disposed on the side wall of the fixed platform, and a pair of guide rails disposed between the fixed platform and the worktable, the L-shaped limiting block being slidably disposed on the guide rails, and a spring being sleeved on the guide rail between the L-shaped limiting block and the fixed platform;

[0007] The connecting rod of the elbow clamp mechanism passes through the through hole in the middle of the worktable and abuts against the surface of the L-shaped limiting block. The lower surface of the extension of the L-shaped limiting block has a predetermined gap with the upper surface of the worktable, and the height of the gap is adapted to the distance of the adhesive joint protruding from the worktable.

[0008] Preferably, it further includes: an optical fiber clamping mechanism for limiting the optical fiber on the fixed platform, the optical fiber clamping mechanism including: a metal cover plate hinged to one side of the fixed platform, and a magnetic suction part that cooperates with the metal cover plate on the upper surface of the other side of the fixed platform;

[0009] The surface of the fixed platform is provided with a groove that matches the shape of the external optical fiber connector.

[0010] Preferably, the upper surface of the extension of the L-shaped limiting block is provided with a cable slot for accommodating the jumper wire of the external optical fiber.

[0011] Preferably, the elbow clamping mechanism includes: a base disposed on the base, a handle hinged to one side of the base, and an arc-shaped connecting member disposed between the connecting rod and the handle;

[0012] The two ends of the arc-shaped connector are respectively hinged to the connecting rod and the handle.

[0013] Preferably, the workbench surface has a mounting groove for placing PCBA boards.

[0014] Preferably, a limiting plate that mates with the PCBA board is provided in the mounting groove near one end of the elbow clamping mechanism, and the limiting plate is detachably connected to the mounting position.

[0015] One end of the limiting plate is configured as an L-shaped limiting part adapted to the shape of the PCBA board.

[0016] This utility model has at least the following beneficial effects: the movement of the elbow clamp mechanism enables the connecting rod to move inside the worktable and contact the L-shaped limiting block, compressing or releasing the spring on the guide rail of the L-shaped limiting block. The extension of the L-shaped limiting block limits the station after the glue is applied on the PCBA board, thus preventing the expansion of the glue between the bonding stations during the subsequent baking process and avoiding misalignment of the bonded parts.

[0017] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached image description:

[0018] Figure 1 This is a schematic diagram of the bonding and anti-loosening device and the spatial structure of the PCBA board according to this utility model;

[0019] Figure 2 A schematic diagram of the overall structure of the bonding and anti-loosening device;

[0020] Figure 3 A schematic diagram of the spatial structure of the workbench;

[0021] Figure 4 This is a schematic diagram of the spatial structure of the clamping mechanism;

[0022] Figure 5 A schematic diagram of the spatial structure of the fiber optic clamping mechanism;

[0023] Figure 6 This is a schematic diagram of the spatial structure of the limiting plate.

[0024] Reference numerals: 1. Base, 2. Workbench, 21. Mounting slot, 22. Limiting plate, 23. L-shaped limiting part, 3. PCBA board, 4. Fiber optic lens, 5. Jumper cable, 6. Elbow clamp mechanism, 61. Base, 62. Handle, 63. Connecting rod, 64. Arc-shaped connector, 7. Limiting mechanism, 71. Fixing platform, 72. L-shaped limiting block, 721. Cable placement slot, 73. Guide rail, 74. Spring, 75. Linear bearing, 8. Fiber optic clamping mechanism, 81. Metal cover plate, 82. Magnetic suction part, 83. Groove, 9. Fiber optic cable, 91. Fiber optic connector. Detailed implementation method:

[0025] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description. It should be understood that terms such as "having," "comprising," and "including" as used herein do not exclude the presence or addition of one or more other elements or combinations thereof. It should be noted that in the description of the present invention, the terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "on top" can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] like Figure 1 A novel optical bonding anti-loosening device is shown, comprising: a base 1, a worktable 2 disposed on the base 1 for placing a PCBA board 3, and further comprising: an elbow clamping mechanism 6 disposed on one side of the worktable 2, and a limiting mechanism 7 disposed on the other side of the worktable 2 for limiting the bonding area on the PCBA board 3. The limiting mechanism 7 comprises: a fixed platform 71, an L-shaped limiting block 72 disposed on the side wall of the fixed platform 71, and a pair of guide rails 73 disposed between the fixed platform 71 and the worktable 2. The L-shaped limiting block 72 is slidably disposed on the guide rail 73, and a spring 74 is sleeved on the guide rail 73 between the L-shaped limiting block 72 and the fixed platform 71.

[0027] The connecting rod 63 of the elbow clamp mechanism 6 passes through the through hole in the middle of the workbench 2 and abuts against the surface of the L-shaped limiting block 72. The lower surface of the extension of the L-shaped limiting block 72 has a predetermined gap with the upper surface of the workbench 2. The height of the gap is adapted to the distance of the adhesive part protruding from the workbench 2.

[0028] Working principle:

[0029] At the start of operation, first push up the elbow clamp mechanism 6. The elbow clamp mechanism 6 drives the connecting rod 63, which moves and pushes the L-shaped limiting block 72. The L-shaped limiting block 72 compresses the spring 74, and the extension of the L-shaped limiting block 72 moves away from the worktable 2. At this time, place the PCBA board 3 on the worktable 2 (the protruding part of the bonding area of ​​the PCBA board 3 is the fiber optic end lens 4, and the protrusion height of the fiber optic end lens 4 is adapted to the predetermined gap between the lower surface of the extension of the L-shaped limiting block 72 and the upper surface of the worktable 2). After applying adhesive to bond the fiber optic end lens 4 on the PCBA board 3 to the jumper wire 5 of the external fiber optic cable, push down the elbow clamp mechanism 6, and the connecting rod 63 moves away from the L-shaped limiting block. 72. Spring 74 pushes L-shaped limiting block 72 in the opposite direction. The extension of L-shaped limiting block 72 moves to the top of the bonding station of PCBA board 3 and presses the fiber optic lens 4 and jumper 5 at the bonding station (because the lower surface of the extension of L-shaped limiting block 72 has a predetermined gap with the upper surface of worktable 2 and is adapted to the height of fiber optic lens 4, when the extension of L-shaped limiting block 72 moves to the upper surface of fiber optic lens 4, the position of the bonded fiber optic lens 4 and jumper 5 can be limited). Finally, the glue is baked and shaped. Through the limitation of the extension of L-shaped limiting block 72, the parts will not be misaligned due to glue expansion during the baking process.

[0030] The L-shaped limiting block 72 is slidably mounted on the guide rail 73 via a linear bearing 75.

[0031] The above technical solution also includes: an optical fiber clamping mechanism 8 set on the fixing platform 71 to limit the position of the optical fiber 9. The optical fiber clamping mechanism 8 includes: a metal cover plate 81 hinged to one side of the fixing platform 71, and a magnetic suction part 82 that cooperates with the metal cover plate 81 on the upper surface of the other side of the fixing platform 71; wherein, the surface of the fixing platform 71 is provided with a groove 83 that matches the shape of the external optical fiber connector 91. With this technical solution, the groove 83 on the surface of the fixing platform 71 matches the shape of the optical fiber connector 91, which can accurately limit the position of the optical fiber 9, prevent it from shifting laterally or longitudinally during the bonding process, and ensure the alignment accuracy of the optical fiber 9 with the optical components (such as optical modules and connectors) on the PCBA board. The metal cover plate 81 is tightly attached to the fixing platform 71 through the magnetic suction part 82, generating uniform pressure, avoiding slight shaking of the optical fiber 9 caused by external force, improving bonding stability, and the magnetic suction method facilitates the quick opening and closing of the metal cover plate 81.

[0032] In the above technical solution, the upper surface of the extension of the L-shaped limiting block 72 is provided with a cable placement groove 721 for accommodating the jumper cable 5 of the external optical fiber 9. By adopting this technical solution, during the bonding process, the jumper cable 5 is placed within the cable placement groove 721, avoiding the possibility of manual contact with the jumper cable 5 during bonding and improving the positional accuracy of the bonding.

[0033] In the above technical solution, the elbow clamping mechanism 6 includes: a base 61 disposed on the base 1, a handle 62 hinged to one side of the base 61, and an arc-shaped connecting piece 64 disposed between the connecting rod 63 and the handle 62.

[0034] The two ends of the arc-shaped connector 64 are hinged to the connecting rod 63 and the handle 62, respectively. Using this technical solution, by manually rotating the handle 62, which is hinged to the arc-shaped connector 64, the curved contour of the arc-shaped connector 64 guides the connecting rod 63 to perform horizontal reciprocating motion, converting the rotation of the handle 62 into linear motion of the connecting rod 63. This facilitates the compression or reset of the spring 74 of the clamping mechanism, thereby limiting the bonding portion of the PCBA board 3 by the L-shaped limiting block 72.

[0035] In the above technical solution, the surface of the workbench 2 is provided with a mounting groove 21 for placing the PCBA board 3. A limiting plate 22 that cooperates with the PCBA board 3 is provided in the mounting groove 21 near one end of the elbow clamping mechanism 6. The limiting plate 22 is detachably connected to the mounting position; wherein, one end of the limiting plate 22 is configured as an L-shaped limiting part 23 that is adapted to the shape of the PCBA board 3. In this technical solution, the mounting groove 21 and the L-shaped limiting part 23 form a constraint. After the PCBA board 3 is embedded in the mounting groove 21, its side is held in place by the L-shaped limiting part 23, its bottom is supported by the bottom of the groove, and its top is fixed by a clamping mechanism to prevent the board from shifting during the dispensing process. At the same time, the limiting plate 22 and the mounting position are detachably connected by a bolt assembly. The limiting plate 22 has a countersunk waist-shaped hole. Through the countersunk waist-shaped hole, the limiting plate 22 can move within a small range in the mounting groove 21. The mounting groove 21 can accommodate PCBA boards 3 of different lengths. Meanwhile, the extended end of the L-shaped limiting part 23 is configured with an inclined structure, which can press the PCBA board 3. After the baking of the PCBA board 3 is completed, the other end of the PCBA board 3 can be lifted. The inclined structure of the extended end of the L-shaped limiting part 23 will not interfere with the lifting of the PCBA board 3.

[0036] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A novel optical bonding anti-loosening device, comprising: A base, a workbench set on the base for placing PCBA boards, characterized in that it further includes: an elbow clamping mechanism set on one side of the workbench, and a limiting mechanism for limiting the bonding area on the PCBA board set on the other side of the workbench, the limiting mechanism including: a fixed platform, an L-shaped limiting block set on the side wall of the fixed platform, a pair of guide rails set between the fixed platform and the workbench, the L-shaped limiting block being slidably set on the guide rail, and a spring being sleeved on the guide rail between the L-shaped limiting block and the fixed platform; The connecting rod of the elbow clamp mechanism passes through the through hole in the middle of the worktable and abuts against the surface of the L-shaped limiting block. The lower surface of the extension of the L-shaped limiting block has a predetermined gap with the upper surface of the worktable, and the height of the gap is adapted to the distance of the adhesive joint protruding from the worktable.

2. The new optical anti-loosening device according to claim 1, characterized in that, Also includes: An optical fiber clamping mechanism is provided on a fixed platform to limit the optical fiber. The optical fiber clamping mechanism includes: a metal cover plate hinged to one side of the fixed platform, and a magnetic suction part that cooperates with the metal cover plate on the upper surface of the other side of the fixed platform. The surface of the fixed platform is provided with a groove that matches the shape of the external optical fiber connector.

3. The new optical anti-loosening device according to claim 1, characterized in that, The upper surface of the extension of the L-shaped limiting block is provided with a cable slot for accommodating the jumper wire of the external optical fiber.

4. The new optical anti-loosening device according to claim 1, characterized in that, The elbow clamp mechanism includes: a base mounted on a base, a handle hinged to one side of the base, and an arc-shaped connector between the connecting rod and the handle; The two ends of the arc-shaped connector are respectively hinged to the connecting rod and the handle.

5. The new optical anti-loosening device according to claim 1, characterized in that, The workbench surface has mounting slots for placing PCBA boards.

6. The new optical anti-loosening device according to claim 5, characterized in that, A limiting plate that mates with the PCBA board is provided in the mounting slot near one end of the elbow clamp mechanism. The limiting plate is detachably connected to the mounting slot. One end of the limiting plate is configured as an L-shaped limiting part adapted to the shape of the PCBA board.

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