Automatic centering device of optical lens core taking machine
By combining laser sensors and electric actuators, high-precision automatic centering of optical lenses is achieved, solving the problems of low precision and insufficient automation in existing technologies, and improving production efficiency and lens protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI XICHEN TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-24
AI Technical Summary
Existing mechanical centering devices in optical lens processing have low precision, low automation, and poor adaptability, and cannot meet the needs of large-scale production.
A laser sensor is used to detect the position of the lens in real time, and the electric push rod is controlled by the controller to adjust the position of the push plate to achieve high-precision centering. Combined with a rubber protective pad to protect the lens, stable pushing is ensured.
It improves the accuracy of lens centering and production efficiency, meets the needs of large-scale production, and reduces manual intervention and lens wear.
Smart Images

Figure CN224158265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic centering technology for optical lens core extractors, specifically an automatic centering device for optical lens core extractors. Background Technology
[0002] Automatic centering of optical lenses is a high-precision automated technology used in optical lens processing. It is mainly used to automatically adjust the position of the lens during the lens processing to precisely align its optical center with the mechanical center. This process is called "centering" or "core taking" and is a key step in optical lens manufacturing, which directly affects the optical performance of the lens and the quality of the final product.
[0003] Existing technology includes patent document CN220839404U, which discloses a lens retrieving mechanism structure. This patent document describes a working plate with two vertical plates fixedly mounted on its upper end. A connecting frame is fixedly mounted on the top of the two vertical plates. An electrically operated telescopic column is fixedly mounted near the center of the lower end of the connecting frame, and a lens retrieving assembly is located at the lower end of the telescopic column. The lens retrieving assembly includes a reverse U-shaped frame, which is fixedly mounted on the lower end of the telescopic column. A grinding plate is fixedly mounted on the top of the inner side of the reverse U-shaped frame. Limiting posts extend through both sides of the reverse U-shaped frame, and a grinding disc is fixedly mounted at one end of each limiting post. A clamping assembly is located on the outside of the vertical plates. The lens retrieving mechanism structure described in this invention provides good retrieving effect and high efficiency.
[0004] The above-mentioned and existing technologies have the following drawbacks: In actual operation, mechanical centering is used, which uses mechanical devices (such as conical clamps or spring clamps) to fix the lens at the geometric center position. Its structure is simple and the cost is low, but its accuracy is low, it has high requirements for the shape and size of the lens, poor adaptability, most operations still require manual intervention, low degree of automation, low efficiency of manual operation, and cannot meet the needs of large-scale production. Therefore, an automatic centering device for optical lens core taking machine is proposed. Utility Model Content
[0005] The purpose of this invention is to provide an automatic centering device for an optical lens core extraction machine to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic centering device for an optical lens core extraction machine, comprising...
[0007] The base has two side plates fixedly connected to its surface. An electric telescopic rod is installed on the side of the two side plates that is far apart from each other. A fixed rod is installed at the output end of the electric telescopic rod.
[0008] The surface of one side plate on the base is provided with a centering structure, which includes a threaded rod. The threaded rod is threaded through the side plate, and one end of the threaded rod is rotatably connected to a drive frame. Several electric actuators are fixedly connected to the arc surface of the drive frame.
[0009] The output end of the electric actuator passes through the drive frame, and a push plate is fixedly connected to the output end of the electric actuator. Several laser sensors are fixedly connected to the surface of the drive frame.
[0010] The surface of the laser sensor is electrically connected to a first transmission line, the other end of which is electrically connected to an electric actuator. A controller is fixedly connected to the surface of the drive frame, and the surface of the controller is electrically connected to several second transmission lines, which are respectively electrically connected to several electric actuators.
[0011] The effect achieved by the above components is as follows: by setting a centering structure, the laser sensor detects the position of the lens in real time and transmits the signal to the controller. The controller controls the electric push rod to precisely adjust the position of the push plate, thereby achieving high-precision centering of the lens, improving production efficiency and meeting the needs of large-scale production.
[0012] Preferably, a round rod is fixedly connected to the surface of the base, and a baffle is fixedly connected to one end of the round rod, with the baffle fitting against the arc surface of the electric actuator.
[0013] The effect achieved by the above components is that the round rod and the baffle limit the electric actuator, thereby limiting the position of the drive frame and keeping the drive frame at the center of the base.
[0014] Preferably, a protective pad is glued to the surface of the push plate, and the protective pad is made of rubber.
[0015] The effect achieved by the above components is that the protective pad on the push plate contacts the lens, and since the protective pad is made of rubber, it prevents the lens from being squeezed and worn by the push plate.
[0016] Preferably, the push plate has an arc-shaped groove on the side away from the electric push rod, and the protective pad is arc-shaped.
[0017] The effect achieved by the above components is that the arc-shaped design of the push plate and protective pad can protect the lens and ensure stable pushing during the pushing process.
[0018] Preferably, a circular plate is fixedly connected to the end of the threaded rod away from the drive frame, and several rotating rods are fixedly connected to the arc surface of the circular plate.
[0019] The effect achieved by the above components is that the rotation of the rotating rod will drive the circular plate to rotate, and the rotation of the circular plate will drive the threaded rod to rotate, thereby facilitating the rotation of the threaded rod.
[0020] Preferably, a guide rod is fixedly connected to the surface of the drive frame, and the guide rod slides through the side plate.
[0021] The effect achieved by the above components is that the guide rod ensures the movement accuracy of the drive frame and ensures the accuracy and stability of the centering process.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] This invention features a centering structure. A laser sensor detects the lens position in real time and transmits the signal to a controller. The controller then controls an electric push rod to precisely adjust the position of the push plate, achieving high-precision centering of the lens, improving production efficiency, and meeting the needs of large-scale production. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of the base of this utility model;
[0025] Figure 2 This is a schematic diagram of the centering structure of this utility model;
[0026] Figure 3 This is a structural schematic diagram of the drive frame of this utility model;
[0027] Figure 4 This is a schematic diagram of the structure of the round rod and the baffle of this utility model.
[0028] In the diagram: 1. Base; 2. Side plate; 3. Electric telescopic rod; 4. Fixed rod; 5. Centering structure; 501. Threaded rod; 502. Drive frame; 503. Electric push rod; 504. Push plate; 505. Laser sensor; 506. First transmission line; 507. Controller; 508. Second transmission line; 509. Round rod; 510. Baffle; 511. Cable bundle block; 512. Protective pad; 513. Round plate; 514. Rotating rod; 515. Guide rod. Detailed Implementation
[0029] 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.
[0030] Please see Figure 1-2This utility model provides a technical solution: an automatic centering device for an optical lens core extraction machine, comprising a base 1, two side plates 2 fixedly connected to the surface of the base 1, electric telescopic rods 3 installed on the sides of the two side plates 2 that are far apart from each other, and a fixed rod 4 installed at the output end of the electric telescopic rod 3. A centering structure 5 is provided on the surface of one side plate 2 on the base 1, the centering structure 5 including a threaded rod 501, the threaded rod 501 threaded through the side plate 2, one end of the threaded rod 501 rotatably connected to a drive frame 502, a plurality of electric push rods 503 fixedly connected to the arc surface of the drive frame 502, the output end of the electric push rod 503 passing through the drive frame 502, and a push plate 504 fixedly connected to the output end of the electric push rod 503. A plurality of laser sensors 505 are fixedly connected, and a first transmission line 506 is electrically connected to the surface of the laser sensor 505. The other end of the first transmission line 506 is electrically connected to an electric push rod 503. A controller 507 is fixedly connected to the surface of the drive frame 502. A plurality of second transmission lines 508 are electrically connected to the surface of the controller 507. The plurality of second transmission lines 508 are electrically connected to the plurality of electric push rods 503 respectively. By setting a centering structure 5, the laser sensors 505 detect the position of the lens in real time and transmit the signal to the controller 507. The controller 507 controls the electric push rods 503 to precisely adjust the position of the push plate 504, thereby achieving high-precision centering of the lens, improving production efficiency and meeting the needs of large-scale production.
[0031] Reference Figure 2 and Figure 3 and Figure 4As shown in this embodiment: a round rod 509 is fixedly connected to the surface of the base 1, and a baffle 510 is fixedly connected to one end of the round rod 509. The baffle 510 fits against the arc surface of the electric push rod 503. The round rod 509 and the baffle 510 limit the electric push rod 503, thereby limiting the position of the drive frame 502, so that the drive frame 502 is located at the center of the base 1. A protective pad 512 is glued to the surface of the push plate 504. The protective pad 512 is made of rubber and contacts the lens. Since the protective pad 512 is made of rubber, it prevents the lens from being squeezed and worn by the push plate 504. An arc-shaped groove is opened on the side of the push plate 504 away from the electric push rod 503. The arc-shaped design of the push plate 504 and the protective pad 512 can protect the lens and ensure stable pushing during the pushing process. A circular plate 513 is fixedly connected to the end of the threaded rod 501 away from the drive frame 502. Several rotating rods 514 are fixedly connected to the arc surface of the circular plate 513. The rotation of the rotating rods 514 will drive the circular plate 513 to rotate, and the rotation of the circular plate 513 will drive the threaded rod 501 to rotate, thus facilitating the rotation of the threaded rod 501. A guide rod 515 is fixedly connected to the surface of the drive frame 502. The guide rod 515 slides through the side plate 2. The guide rod 515 ensures the movement accuracy of the drive frame 502 and ensures the accuracy and stability of the centering process.
[0032] Working principle: First, the optical lens to be processed is placed between two fixed rods 4. Then, the electric telescopic rod 3 is activated to push the fixed rods 4 to clamp the optical lens, causing the fixed rods 4 to move the lens to a suitable processing position. Then, according to the approximate position of the lens, the rotating rod 514 is rotated. The rotation of the rotating rod 514 will cause the circular plate 513 to rotate. The rotation of the circular plate 513 will cause the threaded rod 501 to rotate. The rotation of the threaded rod 501 will move within the side plate 2 by means of the thread. The movement of the threaded rod 501 will cause the drive frame 502 to move closer to the lens. The guide rod 515 ensures the movement accuracy of the drive frame 502, ensuring the accuracy and stability of the centering process. Throughout the process, the circular rod 509 and the baffle 510 limit the electric push rod 503. By limiting the position of the electric push rod 503, the position of the drive frame 502 is also limited, so that the drive frame 502 is located at the center position of the base 1. At this time, the laser sensor... Step 505 begins operation, detecting the lens's position and transmitting the signal via the first transmission line 506 to the electric actuator 503 and controller 507. The controller 507 analyzes the lens's offset based on the received signal and controls the extension and retraction of the electric actuator 503 via the second transmission line 508. This loosens the clamping force on the lens, ensuring that the push plate 504 can push the lens without damaging it. The electric actuator 503 pushes the push plate 504, and the protective pad 512 on the push plate 504 contacts the lens. Because the protective pad 512 is made of rubber and the push plate 504 has an arc-shaped groove design, it protects the lens and ensures stable pushing during the process. The cable tie 511 on the second transmission line 508 restricts the second transmission line 508, preventing it from tangling. With the continuous adjustment of the electric actuator 503, the lens is gradually pushed to a position where the optical center and mechanical center are precisely aligned, completing the centering operation.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic centering device for an optical lens core extraction machine, characterized in that: include The base has two side plates fixedly connected to its surface. An electric telescopic rod is installed on the side of the two side plates that is far apart from each other. A fixed rod is installed at the output end of the electric telescopic rod. The base has a centering structure on the surface of one side plate. The centering structure includes a threaded rod that is threaded through the side plate. One end of the threaded rod is rotatably connected to a drive frame. Several electric actuators are fixedly connected to the arc surface of the drive frame. The output end of the electric actuator passes through the drive frame, and a push plate is fixedly connected to the output end of the electric actuator. Several laser sensors are fixedly connected to the surface of the drive frame. The surface of the laser sensor is electrically connected to a first transmission line, the other end of which is electrically connected to an electric actuator. The surface of the drive frame is fixedly connected to a controller, and the surface of the controller is electrically connected to a plurality of second transmission lines, which are respectively electrically connected to a plurality of electric actuators.
2. The automatic centering device for optical lens core extraction according to claim 1, characterized in that: A round rod is fixedly connected to the surface of the base, and a baffle is fixedly connected to one end of the round rod. The baffle is in contact with the arc surface of the electric push rod.
3. The automatic centering device for optical lens core extraction according to claim 1, characterized in that: The surface of the push plate is bonded with a protective pad, which is made of rubber.
4. The automatic centering device for optical lens core extraction according to claim 3, characterized in that: The push plate has an arc-shaped groove on the side away from the electric push rod, and the protective pad is arc-shaped.
5. The automatic centering device for optical lens core extraction according to claim 1, characterized in that: A circular plate is fixedly connected to the end of the threaded rod away from the drive frame, and several rotating rods are fixedly connected to the arc surface of the circular plate.
6. The automatic centering device for optical lens core extraction according to claim 1, characterized in that: A guide rod is fixedly connected to the surface of the drive frame, and the guide rod slides through the side plate.
Citation Information
Patent Citations
Core taking structure of optical lens core taking machine
CN220839404U