Flexible plate and optical device alignment welding platform

Abstract

The utility model discloses an alignment welding platform for a flexible plate and an optical device, which belongs to the field of optical communication module manufacturing and comprises a bottom plate, a plurality of welding stations, a plurality of flexible plates and a plurality of optical devices. The mounting limiting mechanisms are arranged on the bottom plate in parallel and correspond to the positions of the welding stations respectively; the welding clamps are detachably connected to the installation limiting mechanism and used for limiting and fixing welded parts to the welding station, and the welding clamps are matched with the installation limiting mechanism to enable the welded parts to be attached to each other; the fixed handles are connected to the two sides of the bottom plate; the baffle plate is connected with the fixed handle, and a shield is formed above the welding fixture; according to the flexible plate and optical device alignment welding platform, multiple sets of welded parts can be stably clamped at the same time, the optical module machining efficiency is improved, and the labor intensity of testers is relieved.

Description

Technical Field

[0001] This utility model relates to the field of optical communication module manufacturing, and more specifically, to a flexible board and optical device alignment and welding platform. Background Technology

[0002] Flexible printed circuit boards (FPCs) are circuit boards made of polyimide or polyester film as the substrate, which have high reliability, excellent electrical performance, flexibility and chemical stability. Compared with traditional rigid circuit boards, the biggest advantage of FPCs is their flexibility, which allows them to realize complex circuit layouts in a limited space, greatly improving the design freedom of electronic products.

[0003] In the assembly and production process of optoelectronic conversion modules, optical devices and optical module PCBs are connected by flexible boards. Flexible boards are small in size and light in weight, and have a certain degree of freedom to be bent, which can reduce the influence of inductance on communication signals. The quality of the flexible board welding of optical devices is the key to determining the performance of the module.

[0004] In related technologies, optical components are soldered to flexible circuit boards (PCBs) manually. This involves mounting individual optical components onto standard product soldering sockets and then manually soldering each component one by one. After each component is soldered, the next component is replaced, and the soldering process continues. However, because PCBs are flexible and prone to wrinkling, gaps easily appear between the optical components and the PCB in products manufactured through manual positioning and soldering. Furthermore, solder splattering onto the PCB during the soldering process can result in defective products. Additionally, the soldering of optical components to PCBs requires highly skilled testing personnel who need extensive training before they can perform the soldering work. Therefore, traditional processing methods are cumbersome, inefficient, and result in poor soldering accuracy and yield. They are not only labor-intensive and demanding in terms of skill, but prolonged soldering can also lead to operator fatigue, further reducing soldering quality and speed. Utility Model Content

[0005] The purpose of this invention is to solve the technical problems of low processing efficiency and poor welding effect when welding flexible boards and optical devices using existing technology, and to propose a flexible board and optical device alignment welding platform.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flexible board and optical device alignment and bonding platform includes:

[0008] A base plate, wherein the base plate is provided with several welding stations;

[0009] A plurality of installation limiting mechanisms are arranged in parallel on the bottom plate and correspond to the welding station positions respectively;

[0010] A plurality of welding clamps are detachably connected to the installation limiting mechanisms, and are used to limit and fix the welded pieces at the welding stations. The welding clamps cooperate with the installation limiting mechanisms to keep the welded pieces in close contact.

[0011] A fixed handle is connected to both sides of the bottom plate and is used to move the entire bottom plate;

[0012] A baffle is connected to the fixed handle and forms a shield above the welding clamps.

[0013] Further, the welding clamp comprises:

[0014] A first clamping plate in the form of a strip plate structure;

[0015] A second clamping plate that is adapted in shape and size to the first clamping plate, is arranged in parallel with the first clamping plate, and forms a space for accommodating the welded pieces between the first and second clamping plates. One end of the second clamping plate is movably connected to the first clamping plate, so that the second clamping plate can move away from or close to the first clamping plate.

[0016] A locking assembly arranged at the end of the first clamping plate and the end of the second clamping plate, for keeping the first and second clamping plates close to each other.

[0017] A clamping portion is provided between the first and second clamping plates, and abuts against the welded pieces to limit and fix the welded pieces between the first and second clamping plates.

[0018] Further, the installation limiting mechanism comprises:

[0019] Two support seats fixed to the bottom plate;

[0020] A guide assembly connected between the support seats and the bottom plate;

[0021] A loading platform connected to the guide assembly and relatively movable between the guide assembly and the support seats in the guide direction of the guide assembly;

[0022] A welding baffle connected to the support seat, and forming a space for accommodating the welding clamp between the welding baffle and the loading platform;

[0023] The guide assembly is provided with multiple return springs, the two ends of which abut against the base plate and the loading platform respectively, so that the loading platform is close to the welding baffle, and the welding baffle cooperates with the loading platform to clamp the welding fixture.

[0024] Furthermore, the fixed handle is provided with a first alignment magnet, and the baffle is provided with a second alignment magnet corresponding to the position of the first alignment magnet. The baffle is detachably connected to the fixed handle through the first alignment magnet and the second alignment magnet.

[0025] Furthermore, the clamping part includes:

[0026] A U-shaped groove is provided on the surface of the first clamping plate and near the end of the first clamping plate; the opening of the U-shaped groove faces the second clamping plate and the opening direction is perpendicular to the surface of the first clamping plate; the welded part is snapped into the opening of the U-shaped groove; a first stop block is provided on the surface of the first clamping plate and located on the side of the first clamping plate where the U-shaped groove is located.

[0027] The second stop is disposed on the surface of the second clamping plate and located on the side of the second clamping plate close to the first stop. The second stop is positioned opposite to the first stop and cooperates with the first stop to abut against both sides of the workpiece being welded.

[0028] Furthermore, the support base has a T-shaped structure and includes:

[0029] The support base body, the two support base bodies are vertically arranged on the upper surface of the base plate, and a space is formed between the two support base bodies to accommodate the loading platform;

[0030] Several connecting blocks, two of which are respectively disposed on both sides of the support body and located at the upper end of the support body.

[0031] Furthermore, the guide assembly includes: four guide shafts, which are perpendicular to the upper surface of the base plate, and both ends of the guide shafts are connected to the connecting block and the base plate respectively; the number of reset springs is set to four, and the four reset springs are respectively sleeved on the four guide shafts.

[0032] Furthermore, the loading platform is provided with connecting holes corresponding to the number and position of the guide shafts. The guide shafts pass through the connecting holes, so that the loading platform is slidably connected to the guide shafts and located between the support body bodies.

[0033] The loading platform is also provided with a groove, and the bottom of the groove is provided with several positioning pins.

[0034] Furthermore, the edges of the first clamping plate are respectively provided with first slots, and the edges of the second clamping plate are respectively provided with third slots; the first slots and the third slots are positioned correspondingly, and the first clamping plate is engaged with the positioning pin through the first slots and the second clamping plate is engaged with the positioning pin through the third slots.

[0035] Furthermore, the welding baffle has a strip-shaped structure, and its two ends are detachably connected to the two support bodies respectively; the welding baffle has a welding window, the position and size of which match the area to be welded on the workpiece.

[0036] The beneficial effects of this utility model are as follows: The flexible plate and optical device alignment and welding platform provided in this application can simultaneously and stably clamp multiple sets of components to be welded, improving the processing efficiency of optical modules and reducing the labor intensity of testing personnel; by setting welding fixtures and installation limiting mechanisms in combination, the flexible plate is tightly attached to the surface to be welded of the optical device, thereby improving the welding quality between the flexible plate and the optical device and ensuring the yield rate of finished optical modules; by setting fixed handles and baffles in combination, the influence of welding slag during the welding process is reduced, further ensuring the quality of finished optical modules. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of a flexible plate and optical device alignment and welding platform provided in an embodiment of this utility model;

[0038] Figure 2 This is a schematic diagram of the overall structure of a flexible plate and optical device alignment and welding platform provided in an embodiment of this utility model (another perspective);

[0039] Figure 3 This is a schematic diagram of the welding fixture and installation limiting mechanism in an embodiment of the present utility model;

[0040] Figure 4 This is a schematic diagram of the welding fixture structure in an embodiment of the present utility model;

[0041] Figure 5 This is a schematic diagram of the first clamping plate structure in an embodiment of the present utility model;

[0042] Figure 6 This is a schematic diagram of the second clamping plate structure in an embodiment of this utility model;

[0043] Figure 7 This is a schematic diagram showing the positional relationship between the welding fixture and the workpiece in an embodiment of this utility model;

[0044] Figure 8This is a schematic diagram of the installation limiting mechanism in an embodiment of the present utility model;

[0045] Figure 9 This is a schematic diagram of the installation limiting mechanism in an embodiment of the present utility model (from another perspective);

[0046] Figure 10 This is a schematic diagram of the loading platform structure of this utility model;

[0047] Figure 11 This is a schematic diagram of the clamp loading and unloading assembly structure of this utility model;

[0048] Figure 12 This is a schematic diagram showing the positional relationship between the welding fixture, the installation limiting mechanism, and the workpiece to be welded in this embodiment of the present invention.

[0049] Figure 13 This is a schematic diagram showing the positional relationship between the fixed handle and the baffle in an embodiment of this utility model.

[0050] The markings in the diagram are as follows:

[0051] 1. Base plate;

[0052] 21. Welding fixture; 211. First clamping plate; 2111. First slot; 2112. Second slot; 212. Second clamping plate; 2121. Third slot; 2122. Fourth slot; 213. Clamping part; 2131. U-shaped groove; 2132. First stop block; 2133. Second stop block; 2141. Hinge seat; 2142. Hinge head; 215. Locking assembly; 2151. Magnetic block; 2152. Magnetic groove;

[0053] 22. Installation limiting mechanism; 221. Support base; 2211. Support base body; 2212. Connecting block; 222. Guide assembly; 2221. Guide column; 223. Loading platform; 2231. Connecting hole; 2232. Groove; 22321. Positioning pin; 224. Welding baffle; 2241. Welding window; 225. Return spring; 226. Clamp loading and unloading assembly; 2261. First clamping seat; 2262. Second clamping seat; 2263. Movable handle;

[0054] 3. Fixed handle; 31. Vertical plate; 32. Horizontal plate; 33. First alignment magnet;

[0055] 4. Baffle; 41. Inclined plate; 42. Second aligning magnet. Detailed Implementation

[0056] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0057] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0060] In this embodiment, the components to be soldered include: an optical device and a flexible circuit board and a PCB board connected to the optical device; please refer to [link to relevant documentation]. Figures 1 to 13 The embodiment of this application shows a flexible board and optical device alignment and welding platform. In practical applications, the alignment and welding platform can quickly and accurately position multiple sets of flexible boards and optical devices at the same time, so that the optical devices and welding heads, and the flexible boards and optical devices are in the correct positional relationship, thereby reducing the difficulty of assembly and welding, and improving processing efficiency and processing quality.

[0061] Please see Figures 1 to 3 The flexible plate and optical device alignment and welding platform includes: a base plate 1, a welding fixture 21, an installation limiting mechanism 22, a fixed handle 3, and a baffle 4. In one embodiment of this application, the base plate 1 is generally a strip-shaped plate structure. Several grooves are provided on the upper surface of the base plate 1, and these grooves are arranged on the surface of the base plate 1 to form welding stations. The installation limiting mechanism 22 is connected to the grooves and thus positioned at the corresponding welding stations. The welding fixture 21 is detachably connected to the installation limiting mechanism 22. The flexible plate and optical device are connected within the welding fixture 21, and the positions of the welding fixture 21 and the flexible plate and optical device are relatively fixed, thereby completing the welding process. The flexible board and optical components are replaced as a whole along with the disassembly of the welding fixture 21. To facilitate the overall movement of the base plate 1, the fixed handle 3 has an L-shaped structure, which includes a vertical plate 31 and a horizontal plate 32. The two fixed handles 3 are respectively connected to the two sides of the base plate 1 through the vertical plate 31. The horizontal plate 32 is located at the upper end of the vertical plate 31 so that the tester can hold it when moving the base plate 1. The baffle 4 is a strip plate structure with a length matching the base plate 1. Its two ends are respectively connected to the horizontal plate 32. The baffle 4 forms a barrier above the welding fixture 21 to prevent solder dross from splashing into the welding fixture 21 during the welding process and affecting the quality of the finished optical module.

[0062] For more details, please see Figures 4 to 7 The welding fixture 21 includes a first clamping plate 211, a second clamping plate 212, and a locking assembly 215. The first clamping plate 211 and the second clamping plate 212 are used to fix the optical device, so that the optical device and the PCB board and flexible board connected to it are at the correct angle after being loaded onto the mounting limiting mechanism 22, ensuring the subsequent welding accuracy. In this embodiment, the first clamping plate 211 and the second clamping plate 212 are parallel, and the space formed between the first clamping plate 211 and the second clamping plate 212 is sufficient to accommodate the optical device and the PCB board and flexible board connected to the optical device. During actual loading, the optical device, the PCB board, and the flexible board are connected to the first clamping plate 211 and the second clamping plate 212. Between the clamping plates 212; one end of the second clamping plate 212 is movably connected to the first clamping plate 211, so that the second clamping plate 212 and the first clamping plate 211 can move relative to each other; when the welding clamping fixture 21 is in the open state, it is convenient to disassemble and assemble optical devices, PCB boards, flexible boards and other devices; when the welding clamping fixture 21 is in the closed state, it can form a stable clamp for the device; the locking component 215 is set at the ends of the first clamping plate 211 and the second clamping plate 212. When the welding clamping fixture 21 holds the optical device, the locking component 215 can keep the welding clamping fixture 21 in the closed state, and prevent the welding fixture 21 from being opened accidentally and the welding surface of the optical device from shifting.

[0063] Furthermore, the length of the first clamping plate 211 matches the length of the second clamping plate 212, and the length of the first clamping plate 211 is greater than the length of the optical device after it is connected to the PCB board, so that the optical device and the PCB board can be covered within the first clamping plate 211 and the second clamping plate 212. Since the optical device and the PCB board are connected on the same axis, the photoelectric conversion module formed by the connection is relatively long, and the two are connected by a flexible board. When subjected to external collisions, the PCB board is prone to displacement, which ultimately affects the soldering quality of the flexible board. With the above design, the first clamping plate 211 and the second clamping plate 212 can provide protection for the optical device and the PCB board on the outside, effectively avoiding collision damage to the optical device, the PCB board and the flexible board during the soldering process, thereby improving the yield of finished products.

[0064] In the above technical solution, a clamping part 213 is provided between the first clamping plate 211 and the second clamping plate 212. The clamping part 213 is used to contact the optical device when the welding fixture 21 is in the closed state, and to press the optical device between the first clamping plate 211 and the second clamping plate 212. The clamping part 213 is connected to the optical fiber plug of the optical device and abuts against both sides of the optical device, so that the optical device is positioned between the first clamping plate 211 and the second clamping plate 212. As one embodiment of this application, the clamping part 213 includes: a U-shaped groove 2131, a first stop 2132, and a second stop 2133. The U-shaped groove 2131 is disposed inside the first clamping plate 211 and close to the end of the first clamping plate 211. The opening of the U-shaped groove 2131 faces the second clamping plate 212, and the opening direction is perpendicular to the plate surface of the first clamping plate 211. It can be understood that the opening size of the U-shaped groove 2131 matches the outer diameter of the optical fiber plug of the optical device so that the optical fiber of the optical device can be inserted into the optical fiber plug. The plug can be snapped into the U-shaped groove 2131; after the optical device is connected to the U-shaped groove 2131, its axis is parallel to the first clamping plate 211, so that the PCB board connected to the optical device is also parallel to the first clamping plate 211, and the optical device achieves a positioning effect in the welding fixture 21; the first stop 2132 is set on the plate surface of the first clamping plate 211 and is located on the side of the U-shaped groove 2131 on the first clamping plate 211. The first stop 2132 corresponds to the position of the housing of the optical device. When the optical fiber plug of the optical device is snapped into the U-shaped groove 2131, the housing of the optical device contacts the first stop 2132; the second stop 2133 is set on the plate surface of the second clamping plate 212 and corresponds to the position of the first stop 2132. When the welding fixture 21 is in the closed state, the first stop 2132 and the second stop 2133 cooperate to press against the housings on both sides of the optical device, and the optical device achieves a stable clamping effect in the welding fixture 21. The design of the clamping part 213 allows the optical device and PCB board to be positioned and fixed within the welding fixture 21. Subsequently, the welding fixture 21 can be directly mounted on the installation limiting mechanism 22, which ensures that the welding surface of the optical device is in the correct welding position. This optimizes the steps of adjusting and assembling the optical device on the welding platform and greatly improves processing efficiency. Furthermore, the optical device is positioned by using a side snap-fit ​​method, with the clamping part 213 only contacting the outer surface of the optical device. Compared with the traditional method of using a ceramic rod inserted into a ceramic sleeve for positioning, this effectively avoids contamination of the pin end face.

[0065] In one embodiment of this application, the welding fixture 21 is provided with a hinge seat 2141 and a hinge head 2142; the hinge seat 2141 is disposed on the first clamping plate 211 near one end of the U-shaped groove 2131; the hinge head 2142 is disposed on the second clamping plate 212 near one end of the second stop 2133; the hinge head 2142 is hinged to the hinge seat 2141, so that the first clamping plate 211 and the second clamping plate 212 can rotate relative to each other with the hinge seat 2141 as the pivot point, thereby enabling the welding fixture 21 to switch between an open state and a closed state; during the loading of optical devices, the welding fixture 21 is in the open state. After the optical device is connected to the clamping part 213, the second clamping plate 212 rotates closer to the first clamping plate 211 until the clamping part 213 forms a stable clamp on the optical device, and the welding fixture 21 changes to the closed state; it is understood that the first clamping plate 211 and the second clamping plate 212 can also adopt other connection methods that can achieve relative rotation, such as a pin connection.

[0066] In one embodiment of this application, the locking assembly 215 includes: a magnetic block 2151 and a magnetic groove 2152; the magnetic block 2151 is disposed on the first clamping plate 211 at one end away from the hinge seat 2141; the magnetic groove 2152 is disposed on the second clamping plate 212 at one end away from the hinge head 2142; since the lengths of the first clamping plate 211 and the second clamping plate 212 are matched, after the optical device is placed on the clamping part 213, during the process of the welding fixture 21 changing from the open state to the closed state, the second clamping plate 212... The moving magnetic groove 2152 rotates closer to the first clamping plate 211, and the magnetic block 2151 can eventually be connected to the magnetic groove 2152. Due to the mutual attraction between the magnetic block 2151 and the magnetic groove 2152, the magnetic block 2151 can remain close to the magnetic groove 2152, thereby achieving the technical effect of continuously clamping the optical device by the welding fixture 21. It is understood that the locking component 215 can also adopt other locking structures such as a latch that can prevent relative rotation between the first clamping plate 211 and the second clamping plate 212.

[0067] In a preferred embodiment of this application, the two side edges of the first clamping plate 211 are respectively provided with a first slot 2111 and a second slot 2112; the two side edges of the second clamping plate 212 are respectively provided with a third slot 2121 and a fourth slot 2122; wherein the first slot 2111 and the third slot 2121 are positioned opposite each other; when fixing the welding fixture 21, the first clamping plate 211 is engaged with the corresponding position on the installation limiting mechanism 22 through the first slot 2111, the second clamping plate 212, and the third slot 2121, thus achieving... The welding fixture 21 is positioned relative to the installation limiting mechanism 22; the second slot 2112 and the fourth slot 2122 are positioned correspondingly; when the welding surface of one side of the optical device is processed and it is necessary to switch to the other side of the optical device to process other welding surfaces, the welding fixture 21 is removed from the installation limiting mechanism 22, and the first clamping plate 211 is then clamped to the corresponding position on the installation limiting mechanism 22 through the second slot 2112 and the second clamping plate 212 through the fourth slot 2122, thus completing the repositioning between the welding fixture 21 and the installation limiting mechanism 22.

[0068] The purpose of adopting the welding fixture 21 is to enable the flexible board, optical device and PCB board to be quickly positioned on the mounting limit mechanism 22, so as to solve the technical problems of relying on manual positioning, which is complicated and the positioning accuracy is easily affected.

[0069] In the above technical solutions, please refer to 8 and Figure 9The installation limiting mechanism 22 includes: a support base 221, a guide assembly 222, a loading platform 223, and a welding baffle 224; two support bases 221 are connected to the slide groove of the base plate 1, and the support bases 221 provide connection positions for the guide assembly 222 and the welding baffle 224; the guide assembly 222 is connected between the support bases 221 and the base plate 1; the loading platform 223 is connected to the guide assembly 222 and is used to carry the welding fixture 21, and the loading platform 223 can move relative to the support bases 221 along the guiding direction of the guide assembly 222; the welding baffle 224 is connected to the upper end of the support base 221, and a space sufficient to accommodate the welding fixture 21 is formed between the welding baffle 224 and the loading platform 223; the welding fixture 21 is placed... After being placed on the loading platform 223, the welding baffle 224 is located above the flexible plate and corresponds to the area to be welded on the optical device. By moving the loading platform 223, the distance between the loading platform 223 and the welding baffle 224 can be changed, thereby adjusting the clamping force of both on the welding fixture 21 and changing the tightness of the fit between the flexible plate and the optical device. In the above technical solution, the guide component 222 is also provided with a return spring 225. The return spring 225 is a compression spring, and its two ends abut against the base plate 1 and the loading platform 223 respectively, so that the loading platform 223 can be blocked and brought close to the welding baffle 224. By cooperating with the loading platform 223, the welding baffle 224 clamps the welding fixture 21, thereby achieving the technical effect of pressing the flexible plate against the surface of the optical device.

[0070] In this embodiment, the support base 221 has an overall T-shaped structure, which includes: a support base body 2211 and two connecting blocks 2212; wherein, the support base body 2211 adopts a rectangular block structure, which is vertically arranged on the upper surface of the base plate 1, and the two support base bodies 2211 are arranged in parallel, so that the space between the support bases 221 is sufficient to accommodate the loading platform 223; the two connecting blocks 2212 are respectively arranged on both sides of the support base body 2211 and located at the upper end of the support base body 2211, and the connecting blocks 2212 are provided with through holes for fixing the guide assembly 222.

[0071] In this embodiment, the guide assembly 222 includes four guide posts 2221, which are vertically arranged on the upper surface of the base plate 1 and respectively connected to the through holes of the connecting blocks 2212. The design of the guide assembly 222 allows the loading platform 223 connected to the guide assembly 222 to move in a direction perpendicular to the upper surface of the base plate 1. As a preferred embodiment of this application, the four connecting blocks 2212 are arranged in a rectangular shape, so that the four guide posts 2221 are evenly distributed on the base plate 1, and the four return springs 225 are respectively sleeved on... The corresponding guide posts 2221 provide vertical upward thrust at four positions on the lower surface of the loading platform 223. Compared with the related technology that uses two springs to provide thrust, the uniform arrangement of four return springs 225 can make the loading platform 223 receive uniform thrust and transmit the uniform thrust to the optical device above, instead of making one side of the loading platform 223 lift up and then driving the other side to lift up. By adopting the technical solution of this application, the optical device and the flexible board can be tightly attached, effectively avoiding the occurrence of defects such as edge warping and floating on one side of the flexible board.

[0072] Please see Figure 10 The loading platform 223 has a block-like structure, and its edge is provided with connecting holes 2231 corresponding to the number and position of the guide posts 2221. The guide posts 2221 are respectively inserted into the connecting holes 2231, so that the loading platform 223 is slidably connected to the guide posts 2221. In order to enable the loading platform 223 to form a more stable clamping of the fixture, the loading platform 223 is provided with grooves 2232 that match the shape and size of the fixture. Several positioning pins 22321 are provided at the bottom of the grooves 2232. When loading the fixture containing optical devices, PCB boards, and flexible boards, the loading platform 223 is first slid downward so that the space between the loading platform 223 and the welding baffle 224 is large enough to accommodate the welding fixture 21. Then, the welding fixture 21 is placed in the groove 2232 of the loading platform 223, so that the first slot 2111 and the third slot 2121 are engaged with the positioning pins 22321. This completes the positioning connection between the fixture and the loading platform 223. Compared to the traditional method of placing the fixture on the welding fixture and then securing it with multiple auxiliary parts, using the loading platform 223 to support the welding fixture 21 greatly optimizes the fixing steps and time of the welding fixture 21, and improves the processing efficiency of a single set of optical devices and flexible boards. Moreover, the welding fixture 21 is positioned immediately after being connected to the loading platform 223. After positioning, the loading platform 223 is subjected to force to drive the fixture to rise synchronously, automatically aligning with the welding baffle 224, and finally the optical device is pressed against the welding baffle 224 for welding. In this solution, there are no interfering factors that change the relative positions of the welding fixture 21, the loading platform 223, and the welding baffle 224 between the positioning and fixing steps of the welding fixture 21. The flexible board is always located on the area to be welded of the optical device, and the welding quality can be guaranteed.

[0073] In the above technical solution, the welding baffle 224 is also provided with a welding window 2241 in the middle, which corresponds to the welding area of ​​the optical device on the loading platform 223. During the fixing process of the welding fixture 21, after the loading platform 223 drives the fixture to be lifted a certain distance, the optical device and the welding baffle 224 come into contact. At this time, the pins on the surface of the optical device to be welded are exposed in the welding window 2241. The flexible plate passing through the pins of the optical device is pressed between the optical device and the welding baffle 224 and fits against the surface of the optical device to be welded. The welding baffle 224 is a disposable consumable in the assembly and welding process. By adopting the technical solution of this application, it has the advantage of being easy to replace. On the one hand, the welding baffle 224 can cooperate with the loading platform 223 to press against the fixture, so that the optical device and the flexible plate fit tightly and improve the assembly and welding quality. On the other hand, it can protect the area around the welding surface of the optical device during the welding process and prevent impurities such as slag and sparks from adhering to the non-working area.

[0074] Please see Figure 11In a preferred embodiment of this application, the base plate 1 is further provided with a clamp loading and unloading assembly 226 to facilitate the replacement of a new welding clamp 21 after the alignment welding is completed; the clamp loading and unloading assembly 226 includes: a first clamping seat 2261, a second clamping seat 2262, and a movable handle 2263; wherein, the first clamping seat 2261 is fixed to the upper surface of the base plate 1 and is located on one side of the support base 221; the second clamping seat 2262 is disposed on the lower surface of the loading platform 223; the movable handle 2263 has a strip-shaped structure, with a connecting end and a gripping end at its two ends respectively; the movable handle 2263 is positioned... Located between two support bodies 2211 and below the loading platform 223; the connecting end of the movable handle 2263 is movably connected to the first clamp 2261, and its gripping end is located on the side of the support body 221 away from the first clamp 2261; the movable handle 2263 is movably connected to the second clamp 2262, allowing it to rotate relative to the first clamp 2261 and the second clamp 2262 with the first clamp 2261 as the pivot point; with this design, when loading or unloading the clamp, pulling down the gripping end of the movable handle 2263 allows the movable handle 2263 to pass through the second clamp 2262. The loading platform 223 is moved downwards, moving away from the welding baffle 224. The welding fixture 21 is released from its clamping state. After replacing it with a new welding fixture 21, the movable handle 2263 is released. The loading platform 223 automatically resets under spring force and re-clamps the welding fixture 21 with the welding baffle 224. More specifically, as one embodiment of this application, horizontal rotating shafts are provided at both ends of the movable handle 2263 and at positions on the movable handle 2263 corresponding to the second bracket 2262. The first bracket 2261 is provided with a first rotating groove. 2263 achieves a rotatable connection between the movable handle 2263 and the first mounting bracket 2261 by connecting the horizontal rotating shaft at the connecting end to the first rotating groove; the second mounting bracket 2262 has a U-shaped structure, forming a second rotating groove between itself and the loading platform 223. The horizontal rotating shaft on the movable handle 2263, corresponding to the position of the second mounting bracket 2262, is connected to the second rotating groove. The operator moves the movable handle 2263 by pulling the horizontal rotating shaft at the gripping end up and down, causing the loading platform 223 to move. Simultaneously, the movable handle 2263 rotates relative to the loading platform 223. The design purpose of the clamp loading / unloading assembly 226 is to facilitate the operator's control of the downward movement of the loading platform 223. By using the movable handle 2263 as a lever, it achieves a labor-saving downward pulling effect, realizing the technical effect of quickly changing clamps.

[0075] The purpose of adopting the installation limiting mechanism 22 is to form a stable clamp on the welding fixture 21. The return spring 225 applies a uniform pushing force to the loading platform 223, so that the flexible plate is tightly attached to the surface to be welded of the optical device, effectively avoiding the occurrence of defects such as product floating and insufficient solder, and ensuring the quality of assembly and welding.

[0076] Please seeFigure 13 In a preferred embodiment of this application, a tilting plate 41 is provided on one side of the baffle 4. The tilting plate 41 is used to block the solder dross generated during soldering and prevent the solder dross from falling from the edge of the baffle 4 onto the PCB board between the first clamping plate 211 and the second clamping plate 212. A first alignment magnet 33 is provided on the upper surface of the horizontal plate 32 of the fixed handle 3, and a second alignment magnet 42 is provided on the lower surface of the baffle 4. The second alignment magnet 42 and the first alignment magnet 33 are positioned opposite each other. After the second alignment magnet 42 and the first alignment magnet 33 are magnetically connected, the baffle 4 can cover the top of all the soldering fixtures 21. Through the magnetic connection of the second alignment magnet 42 and the first alignment magnet 33, the baffle 4 and the fixed handle 3 achieve the technical effects of automatic positioning and automatic compensation for small tolerances.

[0077] This application provides a flexible board and optical device alignment and welding platform that can simultaneously and securely clamp multiple sets of optical devices, flexible boards, and PCBs, improving the processing efficiency of optical modules and reducing the labor intensity of testing personnel. By setting a welding fixture 21 and an installation limiting mechanism 22 to cooperate, the flexible board is tightly attached to the surface of the optical device to be welded, thereby improving the welding quality between the flexible board and the optical device and ensuring the yield rate of the finished optical module. By setting a fixed handle 3 and a baffle 4 to cooperate, the influence of welding slag during the welding process is reduced, further ensuring the quality of the finished optical module.

[0078] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flexible board and optical device alignment and welding platform, characterized in that, include: A base plate, wherein the base plate is provided with several welding stations; A plurality of installation limiting mechanisms are arranged in parallel on the base plate and each corresponds to a welding station position. A plurality of welding fixtures are provided, wherein the welding fixtures are detachably connected to the installation limiting mechanism, and the welding fixtures are used to limit and fix the workpieces to be welded at the welding station. The welding fixtures cooperate with the installation limiting mechanism to keep the workpieces to be welded in close contact. Fixed handles are connected to both sides of the base plate and are used to move the base plate as a whole. A baffle plate is connected to the fixed handle and forms a shield above the welding fixture.

2. The flexible board and optical device alignment and welding platform according to claim 1, characterized in that, The welding fixture includes: The first clamping plate is a strip plate structure; The second clamping plate is adapted to the shape and size of the first clamping plate. The second clamping plate is arranged parallel to the first clamping plate, and a space for accommodating the welded part is formed between the second clamping plate and the first clamping plate. One end of the second clamping plate is movably connected to the first clamping plate, so that the second clamping plate and the first clamping plate can open and close and move together. A locking assembly is disposed at the ends of the first clamping plate and the second clamping plate, for keeping the first clamping plate and the second clamping plate close together; The first clamping plate and the second clamping plate are provided with a clamping part, which abuts against the workpiece to be welded, so that the workpiece to be welded is limited and fixed between the first clamping plate and the second clamping plate.

3. The flexible board and optical device alignment and welding platform according to claim 2, characterized in that, The installation limiting mechanism includes: Two support bases, which are fixed to the base plate; A guide assembly, the guide assembly being connected between the support base and the base plate; A loading platform, which is connected to the guide assembly and moves relative to the support base along the guide direction of the guide assembly; A welding baffle is connected to the support base, and a space for accommodating the welding fixture is formed between the welding baffle and the loading platform; The guide assembly is provided with multiple return springs, the two ends of which abut against the base plate and the loading platform respectively, so that the loading platform is close to the welding baffle, and the welding baffle cooperates with the loading platform to clamp the welding fixture.

4. The flexible board and optical device alignment and welding platform according to claim 1, characterized in that, The fixed handle is provided with a first alignment magnet, and the baffle is provided with a second alignment magnet corresponding to the position of the first alignment magnet. The baffle is detachably connected to the fixed handle through the first alignment magnet and the second alignment magnet.

5. The flexible board and optical device alignment and welding platform according to claim 2, characterized in that, The clamping part includes: A U-shaped groove is provided on the surface of the first clamping plate and near the end of the first clamping plate; the opening of the U-shaped groove faces the second clamping plate and the opening direction is perpendicular to the surface of the first clamping plate; the welded part is snapped into the opening of the U-shaped groove; The first stop is disposed on the surface of the first clamping plate and located on the side of the first clamping plate where the U-shaped groove is located; The second stop is disposed on the surface of the second clamping plate and located on the side of the second clamping plate close to the first stop. The second stop is positioned opposite to the first stop and cooperates with the first stop to abut against both sides of the workpiece being welded.

6. The flexible board and optical device alignment and welding platform according to claim 3, characterized in that, The support base has a T-shaped structure and includes: The support base body, the two support base bodies are vertically arranged on the upper surface of the base plate, and a space is formed between the two support base bodies to accommodate the loading platform; Several connecting blocks, two of which are respectively disposed on both sides of the support body and located at the upper end of the support body.

7. The flexible board and optical device alignment and welding platform according to claim 6, characterized in that, The guide assembly includes: four guide shafts, which are perpendicular to the upper surface of the base plate, and both ends of the guide shafts are connected to the connecting block and the base plate, respectively; the number of reset springs is set to four, and the four reset springs are respectively sleeved on the four guide shafts.

8. The flexible board and optical device alignment and welding platform according to claim 7, characterized in that, The loading platform is provided with connecting holes corresponding to the number and position of the guide shafts. The guide shafts pass through the connecting holes, so that the loading platform is slidably connected to the guide shafts and located between the support body bodies. The loading platform is also provided with a groove, and the bottom of the groove is provided with several positioning pins.

9. The flexible board and optical device alignment and welding platform according to claim 8, characterized in that, The edges of the first clamping plate are respectively provided with first slots, and the edges of the second clamping plate are respectively provided with third slots; the first slots and the third slots are positioned corresponding to each other, and the first clamping plate is engaged with the positioning pin through the first slots and the second clamping plate is engaged with the positioning pin through the third slots.

10. A flexible plate and optical device alignment and welding platform according to claim 6, characterized in that, The welding baffle is strip-shaped, and its two ends are detachably connected to the two support bodies. The welding baffle has a welding window, the position and size of which match the area to be welded on the workpiece.

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