A dual-array lens locking device

Abstract

This utility model relates to the field of automated production technology, specifically a dual-array lens locking device, comprising: a lens gripper connecting arm, a miniature cylinder, a finger cylinder, linear slide rails, and lens grippers; the lens gripper connecting arm is provided with two parallel linear slide rails, each with a slider slidably connected to it, the slider being connected to a corresponding finger cylinder body; the miniature cylinder body is connected to the lens gripper connecting arm, the piston rod of the miniature cylinder facing downwards and connected to the back of the finger cylinder; the output end of the finger cylinder is connected to the lens grippers, and the lens is picked up and placed by opening and closing the lens grippers. This utility model's dual-array lens locking device can convert the extension and retraction of the cylinder into precise lifting and lowering of the lens grippers. The two sets of grippers are symmetrical and move synchronously, remaining parallel during transport, meeting the high-speed centering accuracy requirements.

Description

Technical Field

[0001] This utility model relates to the field of automated production technology, specifically a dual-array lens locking device. Background Technology

[0002] In the field of optical component manufacturing and assembly, especially in the production of high-precision optical modules, the precise handling and locking of lenses is a crucial step in ensuring product quality and performance. Traditional lens assembly methods largely rely on manual operation or simple mechanical fixtures, which have significant shortcomings in terms of efficiency, accuracy, and stability.

[0003] First, manual operation is not only inefficient and unable to meet the demands of large-scale production, but also prone to inconsistent assembly accuracy due to differences in operator skills and fatigue, thus affecting the overall performance of the optical module. Furthermore, manual operation carries the risk of lens damage or contamination, increasing production costs and defect rates. Second, while traditional mechanical fixtures improve assembly efficiency to some extent, they often lack sufficient flexibility and adaptability. Different specifications and sizes of lenses require customized fixtures, which not only increases production costs but also limits the versatility and flexibility of the production line. Simultaneously, traditional fixtures struggle to guarantee lens alignment accuracy during high-speed handling, easily leading to assembly errors and affecting the transmission performance of the optical module. This is especially true for integrated dual-array lenses on the optical module PCB, where traditional assembly methods are insufficient to meet their high-precision and high-efficiency assembly requirements. Integrated dual-array lenses require a high degree of consistency and alignment accuracy between the two lenses during assembly; even minor deviations can degrade the quality of optical signal transmission. Utility Model Content

[0004] The purpose of this invention is to provide a dual-array lens locking device to solve at least one of the above-mentioned technical problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A dual-array lens locking device includes: a lens gripper connecting arm, a miniature cylinder, a finger cylinder, a linear slide rail, and lens grippers; The lens gripper connecting arm is provided with two parallel linear slide rails, and a slider is slidably connected to each linear slide rail. The slider is connected to the cylinder body of a corresponding finger cylinder. The cylinder body of the miniature cylinder is connected to the lens gripper connecting arm, and the piston rod of the miniature cylinder faces downward and is connected to the back of the finger cylinder. The output end of the finger cylinder is connected to the lens gripper, and the lens is picked up and put down by opening and closing the lens gripper.

[0006] Furthermore, the device also includes: a spring; The spring is sleeved on the outside of the piston rod of the miniature cylinder, with the upper end of the spring abutting against the shoulder of the miniature cylinder body and the lower end abutting against the back of the finger cylinder.

[0007] Furthermore, the device also includes: a miniature cylinder mounting plate; The miniature cylinder is connected to the lens gripper connecting arm via the miniature cylinder mounting plate.

[0008] Furthermore, the device also includes: a claw pitch adjustment block; The claw distance adjustment block is connected to the side wall of the lens gripper or the side wall of the finger cylinder, and the claw distance adjustment block is used to limit the finger opening of the lens gripper.

[0009] Furthermore, the claw distance adjustment block is adjusted according to the width of the lens to be worked on in order to adapt to different lens sizes.

[0010] Furthermore, two miniature cylinders are provided, each of which is individually connected to a finger cylinder, forming a dual-array gripping unit that can be independently raised and lowered.

[0011] The beneficial effects of this utility model are as follows: This utility model features a dual-array micro cylinder that independently drives two sets of finger cylinders, enabling synchronous or time-sequential precise lifting and lowering of the lens. During transport, the lens grippers can always remain parallel, meeting the alignment accuracy requirements for high-speed assembly.

[0012] The miniature cylinder piston rod of this invention is equipped with an external spring, which provides elastic support when descending and automatically retracts when encountering resistance, avoiding hard impact that could damage the lens or bend the PD gold wire. At the same time, it ensures that the grippers are in the same position after touching the bottom, achieving a soft landing.

[0013] The miniature cylinder of this invention is fixed to the connecting arm by a mounting plate. The parallelism between the piston rod and the slide rail and the spring preload clearance are preset. When replacing the cylinder, only the flange bolts need to be loosened, without affecting the existing accuracy.

[0014] The claw distance adjustment block of this utility model can physically limit the opening of the lens gripper fingers, and can be quickly adjusted according to the lens width. It is compatible with lenses of different sizes and avoids over-tensioning that could scratch the edges or cause elastic fatigue.

[0015] This invention features a dual-array gripping unit that can be independently raised and lowered, allowing for simultaneous picking and placing of two lenses or time-division aligning. This meets the assembly cycle requirements of integrated dual-array lenses on optical module PCBs. Even if one lens fails, the other can still operate, improving equipment utilization. Attached Figure Description

[0016] Figure 1 This is a side view of the dual-array lens locking device according to one embodiment of the present invention. Figure 2 This is a front structural diagram of a dual-array lens locking device according to one embodiment of the present invention.

[0017] In the diagram: 501, lens gripper connecting arm; 502, miniature cylinder; 503, spring; 504, finger cylinder; 505, miniature cylinder mounting plate; 506, linear slide rail; 507, gripper distance adjustment block; 508, lens gripper. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0019] Example 1 Figure 1 This is a side view of the dual-array lens locking device according to one embodiment of the present invention. Figure 2 This is a front structural diagram of a dual-array lens locking device according to one embodiment of the present invention. Figure 1-2 As shown, according to one embodiment of the present invention, a dual-array lens locking device includes: a lens gripper connecting arm 501, a miniature cylinder 502, a finger cylinder 504, a linear slide rail 506, and a lens gripper 508. The lens gripper connecting arm 501 is provided with two parallel linear slide rails 506. A slider is slidably connected to each linear slide rail 506, and the slider is connected to the cylinder body of a corresponding finger cylinder 504. The cylinder body of the miniature cylinder 502 is connected to the lens gripper connecting arm 501, and the piston rod of the miniature cylinder 502 faces downward and is connected to the back of the finger cylinder 504. The output end of the finger cylinder 504 is connected to the lens gripper 508, and the lens is picked up and put down by opening and closing the lens gripper 508.

[0020] In this embodiment, a dual-array lens locking device is proposed. The device uses a lens gripper connecting arm 501 as a base, with two linear slide rails 506 arranged parallel to each other on its front. The slider of each linear slide rail 506 is fixedly connected to the cylinder body of a finger cylinder 504, allowing the finger cylinder 504 to slide up and down along the linear slide rail 506. A miniature cylinder 502 is suspended above the lens gripper connecting arm 501, and the piston rod of the miniature cylinder 502 pushes downward against the back of the finger cylinder 504, forming a "cylinder-slider" linear drive pair. This converts the extension and retraction motion of the piston into the lifting and lowering motion of the lens gripper 508. The two sets of finger cylinders 504 are symmetrically arranged and can operate simultaneously. The lens gripper 508 is installed at the output end of the finger cylinder 504, and the lens is picked up and placed by controlling the opening and closing of the fingers. Because the slider is rigidly connected to the cylinder body, the two lens grippers 508 remain parallel during the lifting and lowering process, avoiding deviation and meeting the centering accuracy requirements for high-speed handling.

[0021] The dual-array lens locking device of this invention can convert the extension and retraction of the cylinder into precise lifting and lowering of the lens grippers. The two sets of grippers are symmetrical and move synchronously, and remain parallel during transport, meeting the high-speed centering accuracy requirements.

[0022] According to one embodiment of the present invention, the device further includes: a spring 503; Spring 503 is sleeved on the outside of piston rod of miniature cylinder 502, with the upper end of spring 503 abutting the shoulder of cylinder body of miniature cylinder 502 and the lower end abutting the back of finger cylinder 504.

[0023] In this embodiment, a spring 503 is coaxially sleeved on the piston rod of the miniature cylinder 502. The upper end of the spring 503 abuts against the shoulder of the cylinder body, and the lower end abuts against the back of the finger cylinder 504. When moving upward, the piston rod directly pulls the finger cylinder 504, and the spring 503 is compressed and stores energy. When moving downward, the piston rod extends and releases energy. The reverse elastic force of the spring 503 provides flexible support to the finger cylinder 504. When encountering instantaneous resistance from the lens or PCB, it can retract, forming an elastic buffer to avoid hard impact that could damage the lens or bend the PD gold wire. At the same time, it ensures the consistency of the gripper position after each bottoming out, and a soft landing can be completed without additional sensors.

[0024] This invention achieves flexible support and elastic buffering for the finger cylinder by installing a spring outside the piston rod of the miniature cylinder, avoiding damage to the components from hard impacts, and ensuring that the gripper position is consistent after bottoming out, thus enabling a soft landing.

[0025] According to one embodiment of the present invention, the device further includes: a miniature cylinder mounting plate 505; The miniature cylinder 502 is connected to the lens gripper connecting arm 501 via the miniature cylinder mounting plate 505.

[0026] In this embodiment, a miniature cylinder mounting plate 505 is added. This plate is integrally or separately fixed to the side of the lens gripper connecting arm 501. The cylinder flange of the miniature cylinder 502 is locked onto the mounting plate 505 with its cylinder body facing downwards, so that the piston rod is kept parallel to the lower linear slide rail 506. The miniature cylinder mounting plate 505 provides a cylinder mounting reference and also pre-sets the initial gap between the piston rod and the back of the finger cylinder 504 through the thickness difference, ensuring that the spring 503 can be reliably pre-compressed, realizing modular assembly and disassembly. When replacing the miniature cylinder 502 with different strokes, it can be pulled out as a whole simply by loosening the flange bolts, without affecting the existing accuracy of the linear slide rail 506 and the lens gripper 508.

[0027] The miniature cylinder mounting plate of this utility model not only provides an installation reference for the cylinder and ensures that the piston rod is parallel to the slide rail, but also allows for the preset initial clearance to ensure spring preload. Furthermore, it facilitates modular assembly and disassembly and cylinder replacement without affecting existing accuracy.

[0028] According to one embodiment of the present invention, the device further includes: a claw distance adjustment block 507; The claw distance adjustment block 507 is connected to the side wall of the lens gripper 508 or the side wall of the finger cylinder 504 to limit the finger opening of the lens gripper 508.

[0029] Preferably, the claw distance adjustment block 507 is adjusted according to the width of the lens to be worked on in order to adapt to different lens sizes.

[0030] In this embodiment, a claw distance adjustment block 507 is added to the side wall of the lens gripper 508 or the side wall of the finger cylinder 504. The front end of the claw distance adjustment block 507 is provided with an adjustable thread, which can be rotated to change its extension length, thereby physically limiting the maximum opening amount of the finger of the lens gripper 508. When the lens gripper 508 opens to the point where the claw distance adjustment block 507 presses against the base of the finger, it automatically stops.

[0031] This invention can quickly adapt to lenses of different widths without modifying the cylinder stroke, while ensuring consistent clamping force in batches, avoiding over-tension that could cause elastic fatigue of the grippers or scratches on the lens edges, and achieving flexible production with one set of fixtures compatible with multiple lens specifications.

[0032] According to one embodiment of the present invention, two miniature cylinders 502 are provided, and each miniature cylinder 502 is individually connected to a finger cylinder 504 to form a dual array gripping unit that can be independently raised and lowered.

[0033] In this embodiment, the miniature cylinders 502 are arranged in pairs, with each piston rod independently corresponding to a finger cylinder 504. The two cylinder-slide rail-gripper units are connected in parallel to the same lens gripper connecting arm 501 to form a dual-array gripping structure. During control, the cylinders can extend and retract simultaneously or in stages to realize the synchronous picking and placing or sequential centering of the two lenses, which meets the assembly rhythm of the integrated dual-array lens on the optical module PCB. Moreover, the two movements do not affect each other, and the other can continue to work even if one fails, thereby improving equipment utilization and process flexibility.

[0034] This utility model uses paired micro cylinders to form a dual-array gripping unit, which can operate synchronously or in stages to flexibly pick up and put down lenses, meet assembly cycle time, and the two paths do not interfere with each other, thus improving equipment utilization and process flexibility.

[0035] Example 2 like Figure 1-2 As shown, according to one embodiment of the present invention, a dual-array lens locking device includes: a lens gripper connecting arm 501, a miniature cylinder 502, a spring 503, a finger cylinder 504, a miniature cylinder mounting plate 505, a linear slide rail 506, a gripper distance adjusting block 507, and a lens gripper 508.

[0036] The dual-array lens locking device uses a lens gripper connecting arm 501 as its main base, connecting to an external robot or slide table. All other components are directly or indirectly attached to this arm. A micro-cylinder mounting plate 505 is first fixed to the back of the lens gripper connecting arm 501. Two longitudinally arranged linear slide rails 506 are positioned side-by-side below the mounting plate 505. The slider of each linear slide rail 506 is rigidly connected to the cylinder body of a finger cylinder 504, allowing the finger cylinder 504 to slide independently up and down along the linear slide rail 506. Two micro-cylinders 502 are connected in parallel on the mounting plate 505. The piston rod of each micro-cylinder 502 faces downwards and is fitted with an outer spring 503, with the rod end connected to the back of the corresponding finger cylinder 504.

[0037] When moving upwards, the piston rod of the miniature cylinder 502 directly pulls the finger cylinder 504 and compresses the spring 503. When moving downwards, the piston rod is released, and the spring 503 provides elastic support to achieve bottoming-out retraction and buffering, avoiding damage to the lens or the PD gold wires on the PCB surface.

[0038] The output finger of each finger cylinder 504 is fixed to the lens gripper 508 by screws, and the finger is opened and closed to complete the picking and placing. Each lens gripper 508 is equipped with a claw distance adjustment block 507 on its side. The claw distance adjustment block 507 limits the finger opening by threading, so as to adapt to lenses of different widths.

[0039] The dual-array lens locking device of this utility model forms two sets of independently lifting gripping units that can operate simultaneously or in stages, satisfying the centering placement of the integrated dual-array lens on the PCB of the high-speed optical module, eliminating the need for manual secondary clamping, and preventing the risk of collision with the lens end face or gold wire during transportation.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-array lens locking device, characterized in that, include: Lens gripper connecting arm (501), miniature cylinder (502), finger cylinder (504), linear slide rail (506), lens gripper (508); The lens gripper connecting arm (501) is provided with two parallel linear slide rails (506), and a slider is slidably connected on each linear slide rail (506). The slider is connected to the cylinder body of a corresponding finger cylinder (504). The cylinder body of the miniature cylinder (502) is connected to the lens gripper connecting arm (501), and the piston rod of the miniature cylinder (502) faces downward and is connected to the back of the finger cylinder (504). The output end of the finger cylinder (504) is connected to the lens gripper (508), and the lens is picked up and put down by opening and closing the lens gripper (508).

2. The dual-array lens locking device according to claim 1, characterized in that, The device also includes: a spring (503); The spring (503) is sleeved on the outside of the piston rod of the miniature cylinder (502), and the upper end of the spring (503) abuts against the shoulder of the cylinder body of the miniature cylinder (502) and the lower end abuts against the back of the finger cylinder (504).

3. The dual-array lens locking device according to claim 1, characterized in that, The device also includes: a miniature cylinder mounting plate (505); The miniature cylinder (502) is connected to the lens gripper connecting arm (501) via the miniature cylinder mounting plate (505).

4. The dual-array lens locking device according to claim 1, characterized in that, The device also includes: a claw distance adjustment block (507); The claw distance adjustment block (507) is connected to the side wall of the lens gripper (508) or the side wall of the finger cylinder (504), and the claw distance adjustment block (507) is used to limit the finger opening of the lens gripper (508).

5. The dual-array lens locking device according to claim 4, characterized in that: Adjust the claw distance adjustment block (507) according to the width of the lens to be worked on to adapt to different lens sizes.

6. The dual-array lens locking device according to claim 1, characterized in that: Two miniature cylinders (502) are provided, and each miniature cylinder (502) is individually connected to a finger cylinder (504) to form a dual array gripping unit that can be independently raised and lowered.

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