High-precision press-fixing device for optical lens components

Abstract

The utility model discloses a kind of high-precision press-fixing devices of optical lens parts, it is related to lens parts press-fixing technical field, including fixed plate, vertical plate is adjusted slider by setting and is lifted in adjusting groove to thereby adjustable first press plate, the use height of second press plate, different size parts are press-fixed and work, the telescopic support rod of first telescopic support rod, second telescopic support rod provided is used to first press plate, second press plate provides telescopic support effect by locking screw, the reinforcing rod, fixed arm provided can be reinforced and supported to the use of first press-fixing frame, second press-fixing frame, the fixed screw provided improves the use stability of first universal joint, second universal joint, the movable shaft, universal ball provided can provide rotation force for first universal joint, second universal joint, effectively adjustable first press-fixing frame, the use angle of second press-fixing frame.

Description

Technical Field

[0001] This utility model relates to the field of lens component pressing and fixing technology, and in particular to a high-precision pressing and fixing device for optical lens components. Background Technology

[0002] In modern optical manufacturing, the assembly precision of optical lenses directly determines the imaging quality and performance of the final product. A lens consists of multiple high-precision lenses, a lens barrel, spacers, and other components. The assembly process places extremely high demands on the precision, stability, and flexibility of the pressing and fixing process. Any minute deviation, such as incorrect pressing angle, uneven pressure, or inaccurate positioning, can lead to stress on the lens, optical axis misalignment, or seal failure, thus severely affecting the lens's optical performance and long-term reliability.

[0003] A pressing and fixing device for side-mounted components is disclosed in patent CN213561269U. This patent includes a lower base plate, an upper base plate, a left stop block, a right stop block, a lifting cylinder, a pressing block assembly, a through hole, a pressure plate, and a pressing block. The pressing machine for side-mounted components can be in a clamping system or other mechanical device to press and fix the components from the side. First, the product is placed on the lower base plate 2 through the through hole on the upper base plate 3, and the left stop block 4 and right stop block 5 at both ends limit its position. The height of the upper base plate 3 is adjusted according to the position of the fixed component using the lifting cylinder. Then, the moving cylinder drives the pressing block to move and press the component together. The pressing block is provided with component positioning holes. However, this patent still has the following problems: For complex components in optical lenses, such as tilted surfaces, curved surfaces, or components requiring precise alignment at multiple angles, this device cannot adjust the pressing angle, making it difficult to achieve a close fit and uniform pressure application. This can easily lead to excessive local stress or incomplete pressing. Furthermore, when fine-tuning the height or angle is required, the lack of an intermediate support structure that can both flexibly extend and instantly lock rigidly makes it difficult for operators to quickly and accurately switch between "adjustment" and "fixation" states. This affects adaptability to components of varying thicknesses and operational efficiency. When applying significant pressure to small components, the device's cantilever pressing structure (driven by a cylinder to move the pressing block) may vibrate or slightly deform, leading to a decrease in pressing accuracy. Additionally, its overall frame structure lacks specialized reinforcement design, making it prone to accuracy degradation under long-term high-load use. The entire pressing process relies on preset cylinder strokes and lacks interactive fine-tuning capabilities. For precision assembly tasks requiring operator experience for fine-tuning, this device is too "rigid" and cannot meet the stringent requirements for "feel" and fine-tuning in high-end optical lens assembly.

[0004] To address the above problems, a high-precision pressing and fixing device for optical lens components needs to be designed to overcome these issues. Utility Model Content

[0005] The main purpose of this utility model is to provide a high-precision pressing and fixing device for optical lens components, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A high-precision pressing and fixing device for optical lens components includes a fixing plate and a vertical plate. One side of the vertical plate has an adjustment groove, and an adjustment slider is connected to the inner side of the adjustment groove. A fixing block is installed at the bottom of the adjustment slider, and a guide frame is installed at the bottom of the fixing block. A fixing screw is connected to the inner side of the guide frame, and a reinforcing cylinder is installed at the bottom of the fixing screw. A first universal joint is installed at the bottom of the reinforcing cylinder. A movable shaft is connected to one end of the inner side of the first universal joint, and a universal ball is connected to the outer wall of the movable shaft. A second universal joint is connected to the end of the movable shaft away from the first universal joint. A fixing arm is connected to one end of both the first and second universal joints, and a reinforcing rod is connected to both ends of the reinforcing cylinder.

[0007] As a preferred embodiment of this utility model, the outer wall of each fixing block is equipped with a support arm. One end of the bottom of each support arm is connected to a first telescopic support rod and a second telescopic support rod. The bottom of the first telescopic support rod and the second telescopic support rod are equipped with locking screws. The outer wall of each locking screw is connected to a first pressing and fixing frame and a second pressing and fixing frame. The bottom of each locking screw passes through the top of the first pressing and fixing frame and the second pressing and fixing frame and is connected to a first pressing plate and a second pressing plate. The bottom of the inner side of each of the first pressing and fixing frame and the second pressing and fixing frame is equipped with a pressing pad.

[0008] In a preferred embodiment of this utility model, the adjusting slider is slidably connected to the inner side of the adjusting groove, the fixing block is fixedly connected to the guide frame, and the guide frame is threadedly fixedly connected to the fixing screw.

[0009] In a preferred embodiment of this utility model, the fixing screw is rotatably connected to the reinforcing cylinder, the reinforcing cylinder is rotatably connected to the first universal joint, the first universal joint is rotatably connected to the second universal joint through the movable shaft, and the movable shaft is rotatably connected to the universal ball.

[0010] In a preferred embodiment of this utility model, the reinforcing cylinder is rotatably connected to the reinforcing rod, the first universal joint and the second universal joint are both fixedly connected to the fixed arm, and the reinforcing cylinder and the fixed arm are rotatably connected to the first pressing and fixing frame and the second pressing and fixing frame.

[0011] As a preferred embodiment of this utility model, a buffer box is installed at one end of the top of the fixed plate, and a blower is installed at one end of the buffer box. A blower pipe is installed at the top of the buffer box, and multiple blower ports are installed at the top of the blower pipe.

[0012] As a preferred embodiment of this utility model, the first telescopic support rod and the second telescopic support rod are both threadedly fixedly connected to the bottom of the support arm, and the first telescopic support rod and the second telescopic support rod are threadedly fixedly connected to the locking screw. The locking screw passes through the top of the first pressing and fixing frame and the second pressing and fixing frame and is rotatably connected to the first pressing plate and the second pressing plate.

[0013] Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: This high-precision pressing and fixing device for optical lens components allows for adjustment of the height of the first and second pressing plates via an adjustable slider that moves up and down within an adjustment groove. It enables pressing of components of different sizes. The first and second telescopic support rods, secured by locking screws, provide telescopic support to the pressing plates. Reinforcing rods and fixing arms further reinforce the first and second pressing and fixing frames. Fixing screws improve the stability of the first and second universal joints. Movable shafts and universal balls provide rotational force to the first and second universal joints, effectively adjusting the operating angle of the first and second pressing and fixing frames. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the first pressing and fixing frame installation structure of this utility model; Figure 3 This is a schematic diagram of the first universal joint installation structure of this utility model; Figure 4 This is a schematic diagram of structure A of this utility model.

[0015] In the diagram: 1. Fixed plate; 2. Vertical plate; 3. Adjustment groove; 4. Adjustment slider; 5. Fixed block; 6. Support arm; 7. First telescopic support rod; 8. Second telescopic support rod; 9. Locking screw; 10. First pressing and fixing frame; 11. Second pressing and fixing frame; 12. First pressing plate; 13. Second pressing plate; 14. Guide frame; 15. Fixing screw; 16. Reinforcing cylinder; 17. Reinforcing rod; 18. Movable shaft; 19. Universal ball; 20. First universal joint; 21. Second universal joint; 22. Fixed arm; 23. Buffer box; 24. Blower; 25. Blower pipe; 26. Blower outlet; 27. Pressing pad. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-4 As shown, a high-precision pressing and fixing device for optical lens components includes a fixing plate 1 and a vertical plate 2. An adjustment groove 3 is provided on one side of the vertical plate 2. An adjustment slider 4 is connected to the inner side of the adjustment groove 3. A fixing block 5 is installed at the bottom of the adjustment slider 4. A guide frame 14 is installed at the bottom of the fixing block 5. A fixing screw 15 is connected to the inner side of the guide frame 14. A reinforcing cylinder 16 is installed at the bottom of the fixing screw 15. A first universal joint 20 is installed at the bottom of the reinforcing cylinder 16. A movable shaft 18 is connected to one end of the inner side of the first universal joint 20. A universal ball 19 is connected to the outer wall of the movable shaft 18. A second universal joint 21 is connected to the end of the movable shaft 18 away from the first universal joint 20. A fixing arm 22 is connected to one end of both the first universal joint 20 and the second universal joint 21. A reinforcing rod 17 is connected to both ends of the reinforcing cylinder 16. The adjusting slider 4 is slidably connected to the inner side of the adjusting groove 3; the fixing block 5 is fixedly connected to the guide frame 14; the guide frame 14 is threadedly fixedly connected to the fixing screw 15; the fixing screw 15 is rotatably connected to the reinforcing cylinder 16; the reinforcing cylinder 16 is rotatably connected to the first universal joint 20; the first universal joint 20 is rotatably connected to the second universal joint 21 via the movable shaft 18; the movable shaft 18 is rotatably connected to the universal ball 19; the reinforcing cylinder 16 is rotatably connected to the reinforcing rod 17; the first universal joint 20 and the second universal joint 21 are both fixedly connected to the fixing arm 22; the reinforcing cylinder 16 and the fixing arm 22 are both rotatably connected to the first pressing fixing frame 10 and the second pressing fixing frame 11. Support arms 6 are installed on the outer walls of the fixing blocks 5. The bottom end of the support arm 6 is connected to the first telescopic support rod 7 and the second telescopic support rod 8 respectively. Locking screws 9 are installed at the bottom of the first telescopic support rod 7 and the second telescopic support rod 8 respectively. The outer walls of the locking screws 9 are connected to the first pressing and fixing frame 10 and the second pressing and fixing frame 11 respectively. The bottom of the locking screws 9 passes through the top of the first pressing and fixing frame 10 and the second pressing and fixing frame 11 respectively and is connected to the first pressing plate 12 and the second pressing plate 13 respectively. Pressing pads 27 are installed at the bottom of the inner sides of the first pressing and fixing frame 10 and the second pressing and fixing frame 11. A buffer box 23 is installed at one end of the top of the fixed plate 1. The buffer box 23 drives a blower 24 at one end. A blower pipe 25 is installed at the top of the buffer box 23. Multiple blower ports 26 are installed at the top of the blower pipe 25. The first telescopic support rod 7 and the second telescopic support rod 8 are both threadedly fixed to the bottom of the support arm 6. The first telescopic support rod 7 and the second telescopic support rod 8 are threadedly fixed to the locking screw 9. The locking screw 9 passes through the top of the first pressing and fixing frame 10 and the second pressing and fixing frame 11 and is rotatably connected to the first pressing plate 12 and the second pressing plate 13. Specifically, in this embodiment, the operator loosens the locking handle on the adjusting slider 4, slides the support arm 6 assembly downwards along the adjusting groove 3, visually lowering the first pressing and fixing frame 10 and the second pressing and fixing frame 11 to a distance of approximately 10-20 mm above the lens assembly, then locks the adjusting slider 4. The operator rotates the locking screws 9 on both sides counterclockwise 2-3 turns to bring the first telescopic support rod 7 and the second telescopic support rod 8 into a telescopic state. Then, the operator holds the first pressing and fixing frame 10 and the second pressing and fixing frame 11 with both hands and slowly applies downward pressure while observing the contact between the pressing pad 27 and the lens surface. When the pressing pad 27 just contacts the lens surface and there is no pressure, the downward pressure is stopped. Subsequently, the locking screws 9 on both sides are slowly rotated clockwise until significant resistance is felt. At this point, the telescopic support rod is initially locked, and the pressing pad 27 applies a small pre-pressure to the lens. Since the edge of the aspherical lens has a certain tilt angle, the pressing angle needs to be adjusted. The operator rotates the fixing screw 15 counterclockwise 1-2 turns to release the lock on the universal joint assembly. Then, by slightly pushing, pulling, and twisting the first pressing fixing frame 10 and the second pressing fixing frame 11, the surface of the pressing pad 27 is made to fully fit with the inclined surface of the lens edge through the synergistic action of the first universal joint 20, the second universal joint 21, the movable shaft 18, and the universal ball 19. After checking by inserting an extremely thin feeler gauge between the pressing pad 27 and the lens to confirm that there are no gaps, the operator immediately tightens the fixing screw 15 clockwise to firmly lock the current angle. The operator uses a torque wrench to tighten the locking screws 9 on both sides simultaneously and evenly according to the torque value specified in the process document. At this time, the powerful and precisely controlled pressing force is evenly applied to the lens through the first pressing plate 12 and the second pressing plate 13. During this process, the reinforcing rod 17 and the fixing arm 22 act as auxiliary supports to absorb and disperse the possible lateral forces, ensuring the stability and verticality of the pressing process. Maintain this pressure for 30 seconds. After pressing, first rotate the locking screw 9 counterclockwise to release the pressure, then rotate the fixing screw 15 counterclockwise to unlock the angle. Lift the entire pressing assembly upwards, release the adjusting slider 4, raise it to the highest position and lock it. Carefully remove the pressed lens and lens barrel assembly, start the blower 24, and clean airflow will blow out from the blower 26 to clean the working area and pressing pad 27, preparing for the next operation.

[0018] It should be noted that this utility model is a high-precision pressing and fixing device for optical lens components. In use, firstly, the optical lens components to be pressed, such as lenses and lens barrel assemblies, are placed in a suitable working area on the fixing plate 1. At this time, the entire pressing device is in an initial standby state. The first pressing plate 12 and the second pressing plate 13 are located at a higher position, leaving sufficient space for the placement of the components. Based on the overall height of the components to be pressed, the operator releases the locking mechanism of the adjusting slider 4 on the adjusting groove 3, and manually or through an auxiliary drive mechanism, vertically raises and lowers the adjusting slider 4 along the adjusting groove 3 on the vertical plate 2. The purpose is to quickly move the entire pressing assembly to a position close to the approximate height of the components. After positioning, the adjusting slider 4 is locked, completing the initial fixation in the height direction. The operator then rotates... Loosen the locking screw 9. At this time, the first telescopic support rod 7 and the second telescopic support rod 8 are in a telescopic state. The operator can finely adjust the height of the first pressing and fixing frame 10 and the second pressing and fixing frame 11 downward or upward until the pressing pad 27 at the bottom of the first pressing plate 12 and the second pressing plate 13 gently contacts the surface of the part to be pressed. This design of telescopic rods in conjunction with locking screws provides a perfect combination of "flexible adjustment" and "rigid locking". It can achieve millimeter-level precision control and provide strong support after adjustment. The operator first loosens the fixing screw 15 to release the rigid constraint on the reinforcing cylinder 16 and the universal joint assembly below. Then, through the linkage of the movable shaft 18 and the universal ball 19, the operator manually pushes the first pressing and fixing frame 10 and the second pressing and fixing frame 11. At this time, the first universal joint 20 and the second universal joint 21 serve as the core rotation hub, enabling the pressing and fixing frame to achieve multi-degree-of-freedom angle rotation such as pitch and yaw, until the surface of the pressing pad 27 and the pressing surface of the component are perfectly aligned. After the angle adjustment is completed, tighten the fixing screw 15 immediately to lock the entire universal joint assembly and ensure that the angle will not shift during the subsequent pressing process. After the height and angle are precisely adjusted, the operator tightens the locking screw 9. At this point, the first telescopic support rod 7 and the second telescopic support rod 8 are completely locked, their lengths are fixed, and a stable rigid support structure is formed. The operator continues to apply slight pressure to the locking screw 9. This pressure is directly transmitted to the first pressing plate 12 and the second pressing plate 13 through the support arm and telescopic rod, applying a uniform, stable, and precise pressing force to the components. During the pressing process, the reinforcing rod 17 and the fixing arm 22 play a crucial role. The reinforcing rod 17 connects the reinforcing cylinder 16 and the pressing fixing frame, effectively preventing lateral shaking or deformation caused by uneven force during pressing. At the same time, the fixing arm 22 firmly connects the first universal joint 20 and the second universal joint 21 to the pressing fixing frame, further enhancing the structural rigidity of the entire pressing front end and ensuring operational stability and pressing accuracy under high pressure. After maintaining pressure for a period of time to complete the pressing, first loosen the locking screw 9 to release the pressure, then loosen the fixing screw 15, lift the pressing assembly and return it to the initial position, and finally take out the pressed parts. During operation intervals or when changing batches, the cleaning function can be activated, the blower 24 can be turned on, and the airflow is buffered and stabilized by the buffer box 23, and then blown out from the multiple blowers 26 at the top through the blower pipe 25. This airflow can effectively blow away dust, debris and other small contaminants that may be attached to the pressing area and the surface of the pressing pad 27, ensuring the cleanliness of subsequent pressing work and avoiding scratches or contamination of the precision optical surface due to the introduction of foreign objects. Compared to the pressing components used in the prior art and common existing technologies, which can only move vertically and horizontally with a rigidly fixed pressing surface angle, this "one-size-fits-all" pressing method cannot achieve perfect surface-to-surface fit when dealing with common tilted lenses, aspherical elements, or complex curved surface structures in optical lenses. This easily leads to stress concentration, uneven pressing, and even component damage, seriously affecting yield and optical performance. This device innovatively introduces a multi-axis linkage rotation system composed of a first universal joint 20, a second universal joint 21, a movable shaft 18, and a universal ball 19. Operators can perform multi-degree-of-freedom angle fine adjustments such as pitch and yaw on the first pressing fixing frame 10 and the second pressing fixing frame 11, much like operating a "mechanical wrist." The powerful locking of the fixing screw 15 enables the device to achieve rigid fixation at any desired angle, allowing the pressing surface to perfectly fit any complex curved surface. This represents a qualitative leap from "point / line contact" to "surface contact," ensuring uniform pressure distribution. It is a key breakthrough in the field of high-precision optical assembly. Existing technologies rely on cylinders for lifting and pressing, which, while highly automated, lack precise human-machine interactive fine-tuning capabilities. Operators struggle to find the ideal balance between "adjustment" and "fixation," resulting in either insufficient adjustment precision or the inability to fine-tune after locking, thus limiting operational efficiency and final accuracy. This device perfectly solves this contradiction through the ingenious cooperation of the first telescopic support rod 7, the second telescopic support rod 8, and the locking screw 9. During the adjustment phase, the telescopic support rod provides flexible, stepless lifting, allowing the operator to precisely control the contact force between the pressing plate and the parts through a "hand feel." During the pressing phase, by tightening the locking screw, the entire structure can be instantly transformed into a stable, rigid support, transmitting strong and stable pressure. This "flexible yet rigid" design not only gives the operator unprecedented precision control but also ensures the absolute reliability of the pressing process, significantly improving assembly accuracy and production efficiency. Existing cantilever pressing structures are prone to vibration, deformation, or "blade slippage" when pressure is applied, especially under uneven force, leading to pressing position deviation, which is fatal for optical lenses with micron-level tolerance requirements. Its overall frame also lacks a dedicated mechanical reinforcement design. This device has a built-in dual reinforcement system. The reinforcement rod 17 forms a stable mechanical connection between the pressing component and the core support structure, effectively suppressing lateral sway and torque. At the same time, the fixed arm 22 firmly connects the universal joint to the pressing fixed frame, enhancing the structural rigidity of the pressing front end. These two, together with the telescopic support rod, form a stable "triangular" support structure, ensuring that the device is as stable as a rock even under the maximum pressing load, completely eliminating the loss of precision caused by structural deformation, and ensuring the consistency and reliability of mass production.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision pressing and fixing device for optical lens components, comprising a fixing plate (1) and a vertical plate (2), characterized in that: An adjustment groove (3) is provided on one side of the upright plate (2). An adjustment slider (4) is connected to the inner side of the adjustment groove (3). A fixing block (5) is installed at the bottom of the adjustment slider (4). A guide frame (14) is installed at the bottom of the fixing block (5). A fixing screw (15) is connected to the inner side of the guide frame (14). A reinforcing cylinder (16) is installed at the bottom of the fixing screw (15). A first universal joint (20) is installed at the bottom of the reinforcing cylinder (16). A movable shaft (18) is connected to one end of the inner side of the first universal joint (20). A universal ball (19) is connected to the outer wall of the movable shaft (18). A second universal joint (21) is connected to the end of the movable shaft (18) away from the first universal joint (20). A fixing arm (22) is connected to one end of both the first universal joint (20) and the second universal joint (21). A reinforcing rod (17) is connected to both ends of the reinforcing cylinder (16).

2. The high-precision pressing and fixing device for optical lens components according to claim 1, characterized in that: The outer wall of the fixing block (5) is equipped with a support arm (6). The bottom end of the support arm (6) is connected to a first telescopic support rod (7) and a second telescopic support rod (8). The bottom of the first telescopic support rod (7) and the second telescopic support rod (8) is equipped with a locking screw (9). The outer wall of the locking screw (9) is connected to a first pressing fixing frame (10) and a second pressing fixing frame (11). The bottom of the locking screw (9) passes through the top of the first pressing fixing frame (10) and the second pressing fixing frame (11) and is connected to a first pressing plate (12) and a second pressing plate (13). The bottom of the inner side of the first pressing fixing frame (10) and the second pressing fixing frame (11) is equipped with a pressing pad (27).

3. The high-precision pressing and fixing device for optical lens components according to claim 1, characterized in that: The adjusting slider (4) is slidably connected to the inner side of the adjusting groove (3), the fixing block (5) is fixedly connected to the guide frame (14), and the guide frame (14) is threadedly fixedly connected to the fixing screw (15).

4. The high-precision pressing and fixing device for optical lens components according to claim 1, characterized in that: The fixing screw (15) is rotatably connected to the reinforcing cylinder (16), the reinforcing cylinder (16) is rotatably connected to the first universal joint (20), the first universal joint (20) is rotatably connected to the second universal joint (21) through the movable shaft (18), and the movable shaft (18) is rotatably connected to the universal ball (19).

5. The high-precision pressing and fixing device for optical lens components according to claim 1, characterized in that: The reinforcing cylinder (16) is rotatably connected to the reinforcing rod (17), the first universal joint (20) and the second universal joint (21) are both fixedly connected to the fixed arm (22), and the reinforcing cylinder (16) and the fixed arm (22) are rotatably connected to the first pressing and fixing frame (10) and the second pressing and fixing frame (11).

6. The high-precision pressing and fixing device for optical lens components according to claim 1, characterized in that: A buffer box (23) is installed at one end of the top of the fixed plate (1). The buffer box (23) drives a blower (24) at one end. A blower pipe (25) is provided at the top of the buffer box (23). Multiple blower ports (26) are provided at the top of the blower pipe (25).

7. The high-precision pressing and fixing device for optical lens components according to claim 2, characterized in that: The first telescopic support rod (7) and the second telescopic support rod (8) are both threadedly fixed to the bottom of the support arm (6). The first telescopic support rod (7) and the second telescopic support rod (8) are threadedly fixed to the locking screw (9). The locking screw (9) passes through the top of the first pressing and fixing frame (10) and the second pressing and fixing frame (11) and is rotatably connected to the first pressing plate (12) and the second pressing plate (13).

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