Auxiliary positioning tool for lens processing

Abstract

The utility model discloses an auxiliary positioning tool for lens processing. The auxiliary positioning tool comprises a mounting box, a driving mechanism, a locking mechanism, a limiting block and a clamping jaw, the driving mechanism, the locking mechanism, the limiting block and the clamping jaw are all arranged on the mounting box; the limiting blocks are uniformly arranged at the top of the mounting box at intervals in the circumferential direction, and a connecting groove is formed between every two adjacent limiting blocks; one side of the bottom of the clamping jaw is slidably connected into the connecting groove. The driving mechanism comprises a driving gear and a fluted disc; the driving gear and the fluted disc are rotationally connected to the mounting box and are meshed with each other, and the locking mechanism is used for locking the driving gear; a control groove is formed in the fluted disc, one end of the control groove is close to the edge of the fluted disc, the other end of the control groove is close to the center of the fluted disc, and the bottom of the clamping jaw is slidably connected into the control groove. By means of the design, the clamping jaws can be arranged in the circumferential direction of the fluted disc, a lens can be conveniently clamped, a plurality of acting points can be given to the lens, the lens is effectively prevented from being damaged by clamping, and lens machining is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of lens processing and manufacturing, and particularly relates to an auxiliary positioning tooling for lens processing. Background Technique

[0002] Lens processing is the process of manufacturing lenses or optical glasses. It involves processes such as cutting, grinding, and polishing of optical materials to achieve the required optical properties and shapes. Common lens processing techniques include rough machining, finish machining, polishing, and coating. During lens processing, high-precision equipment and techniques are required to ensure that the optical quality of the lens meets the requirements.

[0003] When processing lenses, tooling fixtures are needed to fix the position of the lenses, so as to facilitate polishing and grinding of the lenses. The tooling fixtures in the prior art usually adopt a structure that clamps from both sides to the middle. The contact area between this structure of tooling fixture and the lens is small. In order to stably fix the lens, a sufficient large clamping force needs to be maintained. Therefore, this structure of tooling fixture is likely to damage the edge of the lens when in use.

[0004] In the patent with the publication number CN210413924U, a new type of positioning tooling for optical lens processing is disclosed. By controlling the operation of a two-way hydraulic cylinder, the two-way hydraulic cylinder shortens to drive two sliders to move towards each other through two stoppers respectively, so that the two sliders drive two clamping plates to move towards each other through the two sliders, and the two clamping plates effectively clamp the lens. This kind of tooling fixture has the advantages of simple and convenient use. However, the contact area between the clamping plate of this structure of tooling fixture and the lens is small, and it is easy to damage the edge of the lens. Content of the Utility Model

[0005] The purpose of the utility model is to provide an auxiliary positioning tooling for lens processing to solve the following technical problems raised in the background technique:

[0006] The contact area between the tooling fixture in the prior art and the lens is small. In order to stably fix the lens, a sufficient large clamping force needs to be maintained. This structure of tooling fixture is likely to damage the edge of the lens when in use.

[0007] To solve the above technical problems, the technical solution adopted by the utility model is:

[0008] An auxiliary positioning tooling for lens processing includes an installation box, a driving mechanism, a locking mechanism, a limiting block, and a clamping jaw; the driving mechanism, the locking mechanism, the limiting block, and the clamping jaw are all arranged on the installation box;

[0009] A number of limiting blocks are evenly arranged at intervals along the circumferential direction on the top of the installation box, and a connecting groove is formed between adjacent limiting blocks; one side of the bottom of the clamping jaw is slidably connected in the connecting groove;

[0010] The driving mechanism includes a driving gear and a toothed disc; the driving gear and the toothed disc are both rotatably connected to the mounting box and mesh with each other, and the locking mechanism is used to lock the driving gear; a control groove is provided on the toothed disc, one end of the control groove is close to the edge of the toothed disc, and the other end of the control groove is close to the center of the toothed disc, and the bottom of the clamp is slidably connected in the control groove.

[0011] Furthermore, the limiting block is a fan-shaped structure, a connecting rod is fixedly connected to the outer side of the limiting block, and the bottom of the connecting rod is fixedly connected to the installation box.

[0012] Furthermore, a connecting plate is provided between adjacent limiting blocks, and both ends of the connecting plate are fixedly connected to the limiting blocks.

[0013] Furthermore, the clamping jaw is an L-shaped structure, and one side of the bottom of the clamping jaw is slidably connected in the connecting groove.

[0014] Furthermore, a slider is connected to the bottom of the clamp via bolts, the slider is slidably connected in the connecting groove, and a sliding head is fixed to the bottom of the slider, the sliding head is slidably connected in the control groove.

[0015] Furthermore, a positioning plate is fixedly connected to one side of the top of the clamping jaw, and the positioning plate is an isosceles trapezoidal structure.

[0016] Furthermore, the number of the clamping jaws and the limiting blocks are at least four.

[0017] Furthermore, the locking mechanism includes a worm wheel and a worm, a connecting shaft is fixedly connected to the bottom of the driving gear, and the bottom of the connecting shaft is fixedly connected to the worm wheel; the worm is rotatably connected in the installation box, and the worm is cooperatively connected with the worm wheel.

[0018] Furthermore, one end of the worm extends out of the installation box and is connected to a rotating head.

[0019] Furthermore, a soft protective layer is provided on the inner side of the clamping jaw, and the soft protective layer is made of rubber material.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] When the utility model is in use, the driving gear drives the toothed disc to rotate. When the toothed disc rotates, the position of the control slot on the toothed disc moves. Since the control slot is an inclined structure, when the toothed disc rotates, the toothed disc can drive the clamping claws to move closer to or farther away from each other through the control slot. When the lens needs to be clamped, the rotation direction is controlled so that the clamping claws move closer to each other. When the lens needs to be released, the rotation direction is controlled so that the clamping claws move away from each other. This design allows the clamping claws to be arranged in the circumferential direction of the toothed disc, which is convenient for clamping the lens, and can provide the lens with multiple points of force, effectively preventing the lens from being damaged by clamping, and facilitating the processing of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 Schematic diagram of the internal structure of the present utility model;

[0024] Figure 3 Schematic diagram of the overall structure of the present utility model after removing the limit block;

[0025] Figure 4 is Figure 3 Enlarged schematic diagram of part A of

[0026] Markings in the figure: 1 - mounting box, 2 - connecting rod, 3 - limit block, 4 - connecting plate, 5 - clamping jaw, 6 - connecting groove, 7 - slider, 8 - rotating head, 9 - gear disk, 10 - driving gear, 11 - positioning plate, 12 - connecting shaft, 13 - worm gear, 14 - worm, 15 - control groove. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment

[0029] An auxiliary positioning tooling for lens processing, as Figure 1 shown, includes a mounting box 1, a driving mechanism, a locking mechanism, a limit block 3 and a clamping jaw 5; the driving mechanism, the locking mechanism, the limit block 3 and the clamping jaw 5 are all arranged on the mounting box 1;

[0030] As Figure 3 shown, a plurality of limit blocks 3 are evenly arranged at intervals along the circumferential direction on the top of the mounting box 1, and a connecting groove 6 is formed between adjacent limit blocks 3; one side of the bottom of the clamping jaw 5 is slidably connected in the connecting groove 6;

[0031] As Figure 3As shown, the driving mechanism includes a driving gear 10 and a toothed disc 9; the driving gear 10 and the toothed disc 9 are both rotatably connected to the mounting box 1 and mesh with each other, and the locking mechanism is used to lock the driving gear 10; a control groove 15 is provided on the toothed disc 9, one end of the control groove 15 is close to the edge of the toothed disc 9, and the other end of the control groove 15 is close to the center of the toothed disc 9, and the bottom of the clamping jaw 5 is slidably connected in the control groove 15. Among them, the locking mechanism can adopt a blocking rod or a tool clamp, and the blocking rod is used to resist the driving gear 10 to realize the control of the rotation of the driving gear 10, and the tool clamp can also be used to realize the control of the rotation of the driving gear 10. Among them, the control groove 15 is an arc structure, and the clamped bottom is always in contact with the groove wall of the control groove 15, and the toothed disc 9 controls the position of the clamping jaw 5 through the control groove 15.

[0032] Specifically, when in use, the lens to be processed is placed in the middle of the clamping jaws 5. The locking mechanism is opened, and the driving gear 10 is rotated. The driving gear 10 drives the toothed disc 9 to rotate. When the toothed disc 9 rotates, the position of the control slot 15 on the toothed disc 9 moves. Since the control slot 15 is an inclined structure, when the toothed disc 9 rotates, the toothed disc 9 can drive the clamping jaws 5 to move closer to or farther away from each other through the control slot 15. When it is necessary to clamp the lens, the rotation direction is controlled so that the clamping jaws 5 move closer to each other. When it is necessary to release the lens, the rotation direction is controlled so that the clamping jaws 5 move away from each other. This design allows the clamping jaws 5 to be arranged in the circumferential direction of the toothed disc 9, and can move closer to the middle or away from the outside at the same time, which is convenient for clamping the lens, and can provide the lens with multiple points of force, effectively preventing the lens from being damaged by clamping. This clamping method can also effectively ensure the stability of the lens and facilitate lens processing.

[0033] In a preferred embodiment, if Figure 1 As shown, the limit block 3 is a fan-shaped structure, and a connecting rod 2 is fixedly connected to the outer side of the limit block 3, and the bottom of the connecting rod 2 is fixedly connected to the installation box 1. The limit block 3 with a fan-shaped structure is to ensure that the width of the connecting groove 6 between the limit blocks 3 is consistent, so as to facilitate the installation of the clamping claw 5. At the same time, a disc-like structure surrounded by a plurality of limit blocks 3 with a fan-shaped structure can ensure the integrity of the processing auxiliary positioning tooling. The connecting rod 2 is a curved structure, and the limit block 3 is fixed to the installation box 1 through the connecting rod 2. The curved connecting rod 2 can raise the position of the limit block 3, so that a gap is formed between the limit block 3 and the installation box 1, which is convenient for installing the toothed disc 9.

[0034] In a preferred embodiment, if Figure 1As shown, a connecting plate 4 is provided between adjacent limiting blocks 3, and both ends of the connecting plate 4 are fixedly connected to the limiting blocks 3. The introduction of the connecting plate 4 makes a solid whole formed between adjacent limiting blocks 3, thereby enhancing the stability and rigidity of the limiting blocks 3. By effectively connecting the limiting blocks 3 through the connecting plate 4, not only is it ensured that the distance between the limiting blocks 3 always remains uniform and stable, but also the situation where the movement of the clamping jaw 5 is unstable or the accuracy decreases due to the loosening or deformation of a single limiting block 3 can be prevented. This design improves the sliding stability of the clamping jaw 5 in the connecting groove 6 between the limiting blocks 3, provides a more reliable positioning support for lens processing, and further ensures the processing accuracy and efficiency.

[0035] In a preferred embodiment, as Figure 2 shown, the clamping jaw 5 is of an L-shaped structure, and one side of the bottom of the clamping jaw 5 is slidably connected in the connecting groove 6. One side of the bottom of the clamping jaw 5 is slidably connected in the connecting groove 6 to ensure that the clamping jaw 5 can perform stable and precise sliding movements in the connecting groove 6 between the limiting blocks 3. This L-shaped structure design enables the clamping jaw 5 to achieve stable control of the clamping position during lens processing, and at the same time can move flexibly in the connecting groove 6 according to the operation requirements, ensuring the stable clamping of the lens during processing and improving the processing accuracy and efficiency. Through the sliding connection method at the bottom of the clamping jaw 5, the good cooperation between the clamping jaw 5 and the limiting blocks 3 is effectively guaranteed, providing a reliable clamping support for lens processing.

[0036] In a preferred embodiment, as Figure 2 shown, a slider 7 is bolted to the bottom of the clamping jaw 5, the slider 7 is slidably connected in the connecting groove 6, and a sliding head is fixedly connected to the bottom of the slider 7, and the sliding head is slidably connected in the control groove 15. A sliding head is fixedly connected to the bottom of the slider 7, and the sliding head is slidably connected in the control groove 15. This design enables the clamping jaw 5 to accurately control and adjust the movement trajectory and position of the clamping jaw 5 during processing operations, further improving the accuracy and stability of lens processing. The overall design enables the clamping jaw 5 to move in coordination with the slider 7 in the control groove 15, ensuring the accuracy of lens clamping and providing a reliable support and guarantee for lens processing.

[0037] In a preferred embodiment, as Figure 4 shown, a positioning plate 11 is fixedly connected to one side of the top of the clamping jaw 5, and the positioning plate 11 is of an isosceles trapezoid structure. The positioning plate 11 is used to support the lens and provide a supporting force for the lens. The isosceles trapezoid structure is used to prevent interference between the positioning plates 11 when the clamping jaws 5 are closed. Such a design effectively ensures the stability and safety during lens clamping, and at the same time improves the reliability. Therefore, the isosceles trapezoid structure plays a key role in this embodiment, not only ensuring good support for the lens, but also effectively avoiding the problem that the clamping jaws 5 cannot be effectively closed due to interference, providing a reliable support and guarantee for the lens.

[0038] In a preferred embodiment, the number of clamping jaws 5 and limiting blocks 3 is at least four. Such a design aims to ensure the stability and accuracy during the clamping process. By providing at least four clamping jaws 5 and four limiting blocks 3, the clamping force and the limiting force can be effectively and evenly distributed, so that the clamping force and the positioning force act uniformly on each part of the lens. This evenly distributed force can reduce deformation or damage caused by uneven stress on the lens, and at the same time ensure that the lens maintains a stable position and posture during the processing, thereby improving the precision and stability of the processing. Therefore, by providing at least four clamping jaws 5 and four limiting blocks 3, the reliability of clamping and positioning can be ensured, and the processing efficiency and quality can be improved.

[0039] In a preferred embodiment, as Figure 2 shown, the locking mechanism includes a worm gear 13 and a worm 14. A connecting shaft 12 is fixedly connected to the bottom of the driving gear 10, and the worm gear 13 is fixedly connected to the bottom of the connecting shaft 12; the worm 14 is rotatably connected in the mounting box 1, and the worm 14 is in mating connection with the worm gear 13. The position of the driving gear 10 is fixed by the self-locking ability of the worm gear 13 and the worm 14. The mating design between the worm gear 13 and the worm 14 endows the locking mechanism with the self-locking ability, thereby effectively fixing the position of the driving gear 10. By rotating the worm 14 to drive the worm gear 13 to rotate, and then driving the rotation of the driving gear 10, the control of the driving gear 10 is realized. The self-locking characteristic of the worm gear 13 and the worm 14 can prevent accidental movement or accidental loosening, and ensure the stability and reliability of the driving gear 10 in the locked state. Such a design not only improves the convenience and controllability of the operation, but also ensures the stability and safety of the driving gear 10 during the working process, thereby being beneficial to improving the use efficiency and stability of the equipment.

[0040] In a preferred embodiment, as Figure 1 shown, one end of the worm 14 extends out of the mounting box 1 and is connected with a rotating head 8, and the rotating head 8 is used to facilitate the rotation of the worm 14. Through this design, the operator can conveniently control the rotation of the worm 14 through the rotating head 8, thereby adjusting the position of the worm gear 13, that is, adjusting the position of the driving gear 10. The setting of the rotating head 8 makes the operation more convenient and flexible, and improves the operability and controllability of the worm 14.

[0041] In a preferred embodiment, a soft protective layer is provided on the inner side of the clamping jaw 5. The soft protective layer is made of rubber material, and the soft protective layer can be made of soft materials such as rubber. The soft protective layer is used to protect the edge of the lens and can effectively prevent the lens from being damaged by clamping.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0043] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swiveling connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A lens processing auxiliary positioning tool, characterized in that: It comprises an installation box (1), a driving mechanism, a locking mechanism, a limit block (3) and a clamping claw (5); the driving mechanism, the locking mechanism, the limit block (3) and the clamping claw (5) are all arranged on the installation box (1); A plurality of limit blocks (3) are evenly spaced and arranged along the circumferential direction on the top of the installation box (1), and connecting grooves (6) are formed between adjacent limit blocks (3); one side of the bottom of the clamping claw (5) is slidably connected in the connecting groove (6); The driving mechanism comprises a driving gear (10) and a toothed disc (9); the driving gear (10) and the toothed disc (9) are both rotatably connected to the mounting box (1) and mesh with each other, and a locking mechanism is used to lock the driving gear (10); a control groove (15) is provided on the toothed disc (9), one end of the control groove (15) is close to the edge of the toothed disc (9), and the other end of the control groove (15) is close to the center of the toothed disc (9), and the bottom of the clamping claw (5) is slidably connected in the control groove (15).

2. The lens processing auxiliary positioning tool according to claim 1, characterized in that: The limiting block (3) is a fan-shaped structure, a connecting rod (2) is fixedly connected to the outer side of the limiting block (3), and the bottom of the connecting rod (2) is fixedly connected to the installation box (1).

3. The lens processing auxiliary positioning tool according to claim 1, characterized in that: A connecting plate (4) is provided between adjacent limiting blocks (3), and both ends of the connecting plate (4) are fixedly connected to the limiting blocks (3).

4. The lens processing auxiliary positioning tool according to claim 1, characterized in that: The clamping jaw (5) is an L-shaped structure, and one side of the bottom of the clamping jaw (5) is slidably connected in the connecting groove (6).

5. The lens processing auxiliary positioning tool according to claim 1, characterized in that: The bottom of the clamping jaw (5) is connected to a slider (7) via bolts, the slider (7) is slidably connected in the connecting groove (6), and a sliding head is fixedly connected to the bottom of the slider (7), the sliding head is slidably connected in the control groove (15).

6. The lens processing auxiliary positioning tool according to claim 1, characterized in that: A positioning plate (11) is fixedly connected to one side of the top of the clamping jaw (5), and the positioning plate (11) is an isosceles trapezoidal structure.

7. The lens processing auxiliary positioning tool according to claim 1, characterized in that: The number of the clamping jaws (5) and the limiting blocks (3) is at least four.

8. The lens processing auxiliary positioning tool according to claim 1, characterized in that: The locking mechanism comprises a worm wheel (13) and a worm (14); the bottom of the driving gear (10) is fixedly connected with a connecting shaft (12); the bottom of the connecting shaft (12) is fixedly connected with the worm wheel (13); the worm (14) is rotatably connected in the installation box (1); the worm (14) and the worm wheel (13) are matched and connected.

9. The lens processing auxiliary positioning tool according to claim 1, characterized in that: One end of the worm (14) extends out of the installation box (1) and is connected to a rotating head (8).

10. The lens processing auxiliary positioning tool according to claim 1, characterized in that: A soft protective layer is arranged on the inner side of the clamping jaw (5), and the soft protective layer is made of rubber material.

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