High-precision polishing platform for optical instrument lenses

Abstract

The utility model relates to the field of optical element precision machining discloses a kind of high-precision polishing platform for optical instrument lens, including processing platform, the adjusting assembly is arranged in the processing platform, the adjusting assembly includes two electric push rods, and the output end of two electric push rods is fixedly connected with fixed plate, and the fixed plate bottom is fixedly connected with driving motor and adjusting motor, the driving motor output end is fixedly connected with worm, the adjusting motor output end is fixedly connected with transmission shaft, the transmission shaft bottom is fixedly connected with connecting piece one, and the connecting piece one inside rotationally connected has shaft one. In the utility model, the horizontal position is adjusted by screw rod motor driving sliding block along slide rod sliding, and electric push rod adjusts height, and the meshing of driving motor and worm gear and the transmission of adjusting motor realize the fine adjustment of polishing wheel angle, so that the effect of polishing wheel multidimensional adjustment to different thickness lens multi-angle polishing is realized.

Description

Technical Field

[0001] This utility model relates to the field of precision machining of optical components, and in particular to a high-precision grinding platform for optical instrument lenses. Background Technology

[0002] The high-precision grinding platform for optical instrument lenses is a precision machining equipment specifically designed for the core components of optical instruments. Its core function is to process optical lens blanks to meet the required precision and size specifications for lenses of different diameters through grinding. This project uses a machining platform as its basic framework, integrating adjustment components for adjusting the position and attitude of the grinding wheel, drive components for driving the horizontal movement of the grinding wheel, and clamping components for fixing the lens. Ultimately, it achieves high precision, high efficiency, and stability in lens processing, providing crucial guarantees for the imaging quality, light transmittance, and service life of optical instruments.

[0003] Currently, the mainstream method is to polish lenses manually using handheld polishing machines. However, manual polishing requires long hours of handheld operation, which is labor-intensive and difficult to control in terms of precision, resulting in inconsistent quality.

[0004] Existing traditional optical lens polishing machines have significant limitations in terms of adjustment precision, and cannot polish lenses from multiple angles, making it difficult to meet the needs of high-precision lens processing. Therefore, a high-precision polishing platform for optical instrument lenses is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-precision grinding platform for optical instrument lenses, aiming to improve the problem of difficulty in controlling the precision of manual grinding in the prior art.

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

[0007] A high-precision grinding platform for optical instrument lenses includes a processing platform with an adjustment assembly inside. The adjustment assembly includes two electric push rods, the output ends of which are fixedly connected to a fixed plate. A drive motor and an adjustment motor are fixedly connected to the bottom of the fixed plate. A worm gear is fixedly connected to the output end of the drive motor, and a transmission shaft is fixedly connected to the output end of the adjustment motor. A connector is fixedly connected to the bottom of the transmission shaft. A rotating shaft is rotatably connected inside the connector. A worm wheel and a connector are fixedly connected to the outside of the rotating shaft. The worm wheel meshes with the worm gear. A rotary motor is fixedly connected to the bottom of the connector. A rotating shaft is fixedly connected to the output end of the rotary motor. A grinding wheel is fixedly connected to the bottom of the rotating shaft. A drive assembly is fixedly connected to the bottom of the top plate of the processing platform, and a clamping assembly is fixedly connected to the top of the bottom plate of the processing platform.

[0008] As a further description of the above technical solution:

[0009] The clamping assembly includes an annular base, a sliding ring rotatably connected inside the annular base, a clamping claw fixedly connected to the top of the sliding ring, the clamping claw rotatably connected to the top of the annular base, a limit block fixedly connected inside the annular base, a fixing post fixedly connected to the outside of the sliding ring, a spring fixedly connected between the limit block and the fixing post, a platform fixedly connected to the top of the processing platform base plate, and the sliding ring rotatably connected to the outside of the platform.

[0010] As a further description of the above technical solution:

[0011] The drive assembly includes a lead screw motor, with two fixed blocks externally fixed to the lead screw of the lead screw motor. The two fixed blocks are fixedly connected to the bottom of the top plate of the processing platform. Two sliding rods are fixedly connected between the two fixed blocks. A slider is slidably connected between the two sliding rods. Two electric push rods are fixedly connected to the top of the slider. A threaded hole is opened inside the slider. The lead screw of the lead screw motor is threadedly connected to the threaded hole inside the slider.

[0012] As a further description of the above technical solution:

[0013] Two connecting piles are fixedly connected to the bottom of the fixed plate. Holes are opened inside the two connecting piles, and the worm gear is rotatably connected inside the holes.

[0014] As a further description of the above technical solution:

[0015] The drive shaft has a hole inside, and the worm gear is rotatably connected inside the hole.

[0016] As a further description of the above technical solution:

[0017] The connector has a groove inside, and the worm gear is rotatably connected inside the groove.

[0018] As a further description of the above technical solution:

[0019] A metal rod is installed on the outside of the sliding ring, a handle is installed on the outside of the annular base, and a hole is opened on the outside of the annular base, and the metal rod is slidably connected inside the hole;

[0020] As a further description of the above technical solution:

[0021] The annular base has a groove inside, and the fixing column, spring, and limiting block are all disposed inside the groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when polishing the lens, the slider is driven by the lead screw motor to slide along the slide rod to adjust the horizontal position, the electric push rod adjusts the height, and the meshing of the drive motor and the worm gear and the transmission of the adjustment motor realize the fine adjustment of the polishing wheel angle, thereby achieving the effect of multi-dimensional adjustment of the polishing wheel to polish lenses of different thicknesses at multiple angles.

[0024] 2. In this utility model, when fixing the lens, the lens is self-centering and clamped by the linkage between the sliding ring and the clamping claw and the elastic contraction of the spring, which can automatically position the lens to the center position, so as to solve the problem of the grinding accuracy being affected by the positioning deviation. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a high-precision polishing platform for optical instrument lenses proposed in this utility model.

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure of the adjustment component of a high-precision polishing platform for optical instrument lenses proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of a connector two for a high-precision grinding platform for optical instrument lenses proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the clamping assembly of a high-precision grinding platform for optical instrument lenses proposed in this utility model.

[0030] Figure 6 This is a schematic diagram of the drive assembly of a high-precision polishing platform for optical instrument lenses proposed in this utility model.

[0031] Legend:

[0032] 1. Machining platform; 2. Clamping jaws; 3. Lead screw motor; 4. Fixed column; 5. Slider; 6. Slide bar; 7. Electric push rod; 8. Fixed plate; 9. Drive motor; 10. Adjusting motor; 11. Sliding ring; 12. Annular base; 13. Worm gear; 14. Worm wheel; 15. Rotating shaft one; 16. Connecting part one; 17. Connecting part two; 18. Rotary motor; 19. Rotating shaft two; 20. Grinding wheel; 21. Table; 22. Spring; 23. Limit block. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-4 and Figure 6 This utility model provides an embodiment of a high-precision grinding platform for optical instrument lenses, comprising a processing platform 1. The processing platform 1 has an adjustment assembly inside, which includes two electric push rods 7. The output ends of the two electric push rods 7 are fixedly connected to a fixed plate 8. A drive motor 9 and an adjustment motor 10 are fixedly connected to the bottom of the fixed plate 8. A worm gear 13 is fixedly connected to the output end of the drive motor 9. A transmission shaft is fixedly connected to the output end of the adjustment motor 10. A connecting piece 16 is fixedly connected to the bottom of the transmission shaft. A rotating shaft 15 is rotatably connected inside the connecting piece 16. A worm wheel 14 and a connecting piece 2 17 are fixedly connected to the outside of the rotating shaft 15. The worm wheel 14 meshes with the worm gear 13. A rotary motor 18 is fixedly connected to the bottom of the connecting piece 2 17. A rotating shaft 2 19 is fixedly connected to the output end of the rotary motor 18. A grinding wheel is fixedly connected to the bottom of the rotating shaft 2 19. 20. A drive assembly is fixedly connected to the bottom of the top plate of the processing platform 1, and a clamping assembly is fixedly connected to the top of the bottom plate of the processing platform 1. The drive assembly includes a lead screw motor 3. Two fixing blocks are fixedly connected to the lead screw of the lead screw motor 3. The two fixing blocks are fixedly connected to the bottom of the top plate of the processing platform 1. Two sliding rods 6 are fixedly connected between the two fixing blocks. A slider 5 is slidably connected between the two sliding rods 6. Two electric push rods 7 are fixedly connected to the top of the slider 5. A threaded hole is opened inside the slider 5. The lead screw of the lead screw motor 3 is threadedly connected to the threaded hole inside the slider 5. Two connecting pins are fixedly connected to the bottom of the fixed plate 8. Holes are opened inside the two connecting pins. A worm gear 13 is rotatably connected inside the hole. A hole is opened inside the transmission shaft. The worm gear 13 is rotatably connected inside the hole. A groove is opened inside the connecting part 16. A worm wheel 14 is rotatably connected inside the groove.

[0035] Specifically, a high-precision grinding platform for optical instrument lenses includes a processing platform 1, which serves as the basic support structure for the entire high-precision grinding platform, providing a stable mounting reference for the adjustment component, drive component, and clamping component. The bottom of its top plate provides a fixed carrier for the drive component, while the top of its bottom plate provides a mounting base for the clamping component, ensuring the positional accuracy of each functional module. The adjustment component is the core unit for adjusting the posture and height of the grinding wheel 20. Two electric push rods 7, through the telescopic movement of their output ends, drive the fixed plate 8 to move up and down, thereby adjusting the vertical distance between the grinding wheel 20 and the lens to be processed, adapting to the grinding requirements of lenses of different thicknesses. The fixed plate 8, as the bearing base of the adjustment component, not only fixes the drive motor 9 and the adjustment motor 10, but also provides support for the worm gear 13 through two connecting piles at the bottom, realizing the integrated installation of each drive component and transmission component.

[0036] The drive motor 9, acting as the power source for the worm gear 13, rotates the worm gear 13 through the rotation of its output end. This rotation, in turn, transmits power to the worm wheel 14 via the meshing of the worm gear 13 and the worm wheel 14. The adjusting motor 10, through its output end, drives the transmission shaft to rotate, which in turn drives the connecting piece 16 to rotate. This, combined with the radial rotation of the worm wheel 14, enables multi-directional angle adjustment of the grinding wheel 20, meeting the grinding posture requirements of different areas of the lens. The worm gear 13 and the worm wheel 14 form a precision transmission pair, converting the rotational power of the drive motor 9 into the rotation of the worm wheel 14. Their meshing ensures transmission accuracy and reduces backlash error. This, in turn, drives the connecting piece 17 to rotate via the rotating shaft 15, achieving fine-tuning of the grinding wheel 20's angle. The rotating shaft 15 is rotatably connected inside the connecting piece 16, both fixing the worm wheel 14 and the connecting piece 17 and transmitting the rotation of the worm wheel 14 to the connecting piece 17, ensuring power transmission. The stability of the components is ensured by the following: Connector 16 has a groove inside for the worm gear 14 to rotate, and connects the drive shaft and rotating shaft 15, providing installation and rotation space for angle adjustment components and ensuring coordinated movement of all components; Connector 2 17 is fixedly connected to the bottom of rotating shaft 15, on the one hand receiving the rotation transmitted by rotating shaft 15, and on the other hand fixing the rotary motor 18, providing stable support for the rotary motor 18. The rotary motor 18 serves as the grinding power source for the grinding wheel 20, driving rotating shaft 2 19 to rotate at high speed through its output end, thereby driving the grinding wheel 20 to rotate; Rotating shaft 2 19 connects the rotary motor 18 and the grinding wheel 20, transmitting the power of the rotary motor 18 to the grinding wheel 20, ensuring uniform rotation speed of the grinding wheel 20 and improving grinding accuracy; The grinding wheel 20, as the execution component that directly acts on the lens, grinds and polishes the lens surface through high-speed rotation, achieving the required surface accuracy and surface roughness of the lens.

[0037] The drive assembly is responsible for adjusting the horizontal position of the grinding wheel 20. The lead screw motor 3 drives its own lead screw to rotate, causing two fixed blocks to move along the lead screw direction. The two fixed blocks are fixedly connected to two sliding rods 6, which both transmit the power of the lead screw motor 3 and provide fixed support for the sliding rods 6. The two sliding rods 6 provide sliding guidance for the slider 5, limiting its movement direction, preventing deviation, and ensuring horizontal movement accuracy. The slider 5 is fixedly connected to the top of two electric push rods 7, transmitting the horizontal movement of the sliding rods 6 to the adjustment assembly, which in turn drives the grinding wheel 20 to move horizontally, covering different grinding areas of the lens. Holes are opened inside the two connecting posts for the worm gear 13 to rotate and connect, providing support and guidance for the worm gear 13, ensuring precise meshing between the worm gear 13 and the worm wheel 14, and reducing transmission errors.

[0038] Reference Figure 1 and Figure 5 The clamping assembly includes an annular base 12, a sliding ring 11 rotatably connected inside the annular base 12, a clamping claw 2 fixedly connected to the top of the sliding ring 11, the clamping claw 2 rotatably connected to the top of the annular base 12, a limiting block 23 fixedly connected inside the annular base 12, a fixing post 4 fixedly connected to the outside of the sliding ring 11, a spring 22 fixedly connected between the limiting block 23 and the fixing post 4, a platform 21 fixedly connected to the top of the base plate of the processing platform 1, the sliding ring 11 rotatably connected to the outside of the platform 21, a metal rod installed on the outside of the sliding ring 11, a handle installed on the outside of the annular base 12, a hole opened on the outside of the annular base 12, the metal rod slidably connected inside the hole, a groove opened inside the annular base 12, and the fixing post 4, spring 22, and limiting block 23 are all set inside the groove.

[0039] Specifically, the annular base 12 is the core support carrier of the clamping assembly. It provides a rotating mounting base for the sliding ring 11 and accommodates the fixing post 4, spring 22, and limiting block 23 through internal grooves. The external holes also provide sliding guidance for the metal rod. The sliding ring 11 is rotatably connected inside the annular base 12 and sleeved on the outside of the platform 21. Its top is fixed to the clamping claw 2, and its outer side is connected to the fixing post 4 and the metal rod. It can rotate around the center under the elastic force of the spring 22 and thus drive the clamping claw 2 to open and close synchronously. It is a key transmission component for clamping and releasing the lens. The clamping claw 2 is rotatably connected to the top of the annular base 12 and is driven by the sliding ring 11 to achieve radial extension and retraction. It can directly contact the lens to be processed, ensuring stable positioning of the lens through symmetrical clamping, adapting to the processing needs of lenses of different sizes, and avoiding lens displacement during grinding that affects accuracy.

[0040] The limiting block 23 is fixed in the groove of the annular base 12, serving as the fixed end of the spring 22. It not only restricts the extension and retraction direction of the spring 22 but also stably supports the spring force, providing a reliable force source for the clamping action of the gripper 2. The fixing post 4 is connected between the outer side of the sliding ring 11 and the spring 22, converting the elastic force of the spring 22 into the rotational power of the sliding ring 11. It moves synchronously with the sliding ring 11, allowing the gripper 2 to open and close smoothly. The spring 22 is connected between the limiting block 23 and the fixing post 4, using its own elastic properties to provide clamping power. When there is no external force, the fixing post 4 and the sliding ring 11 can drive the gripper 2 to automatically retract and clamp the lens, while also providing a buffering effect to prevent excessive clamping force from damaging the lens surface. The placement table 21 is fixed on the top of the base plate of the processing platform 1 and serves as a direct placement platform for the lens to be processed. It ensures that the center of the lens is aligned with the processing center of the grinding wheel 20, providing a basic positioning guarantee for high-precision grinding. The metal rod is slidably connected in the hole of the annular base 12 and connected to the outside of the sliding ring 11. It can be manually pushed to overcome the elastic force of the spring 22 and make the sliding ring 11 rotate, thereby opening the clamping claw 2 to facilitate the removal and placement of the lens. It is the operating component for controlling the opening and closing of the clamping assembly. The handle is installed on the outside of the annular base 12 to make it easier for the operator to push the metal rod.

[0041] Working principle: The operator places the lens on the platform 21 on the top of the base plate of the processing platform 1, then grasps the handle and pushes the metal rod on the outside of the sliding ring 11, causing the sliding ring 11 to rotate around the outside of the platform 21. The clamping claw 2 fixed on the top of the sliding ring 11 moves synchronously with it. At this time, the spring 22 in the groove inside the annular base 12 is stretched by the fixed column 4. When the lens is completely placed in the center of the platform 21, the metal rod is released. The spring 22 contracts due to its own elasticity, pulling the fixed column 4 and the sliding ring 11 to rotate in the opposite direction. The clamping claw 2 then contracts towards the center and fits against the lens, realizing the self-centering clamping of the lens.

[0042] After the lens is fixed, the drive assembly is activated to adjust the horizontal position of the polishing wheel 20: the lead screw motor 3 runs, and its lead screw is connected to the threaded hole inside the slider 5, driving the slider 5 to slide along the slide bar 6 between the two fixed blocks. Since the two electric push rods 7 are fixed on the top of the slider 5, the adjustment assembly and the polishing wheel 20 below move horizontally in sync with the slider 5 until the polishing wheel 20 is initially aligned with the area of ​​the lens to be polished.

[0043] Subsequently, the adjustment components precisely control the height and posture of the polishing wheel 20: the output ends of the two electric push rods 7 extend and retract, driving the bottom fixed plate 8 to move up and down, thereby adjusting the vertical distance between the polishing wheel 20 and the lens to adapt to the polishing needs of lenses of different thicknesses; the drive motor 9 at the bottom of the fixed plate 8 starts, driving the worm gear 13 at the output end to rotate, the worm gear 13 meshes with the worm wheel 14 rotating in the groove of the connector 16, driving the worm wheel 14 and the externally fixed rotating shaft 15 to rotate, and the connector 2 17 at the bottom of the rotating shaft 15 rotates synchronously, realizing the fine adjustment of the horizontal angle of the polishing wheel 20; at the same time, the adjustment motor 10 runs, and the transmission shaft at its output end drives the connector 16 to rotate, which, together with the transmission of the worm wheel 14 and the worm gear 13, further optimizes the posture of the polishing wheel 20, ensuring that the polishing wheel 20 fits the lens surface at the best angle.

[0044] Finally, the rotary motor 18 starts, and its output drives the second rotating shaft 19 to rotate at high speed. The grinding wheel 20 at the bottom of the second rotating shaft 19 rotates accordingly and performs grinding and polishing operations on the lens. During the process, the horizontal position of the grinding wheel 20 can be continuously finely adjusted by the drive component, and the height and angle can be adjusted in real time by the adjustment component to complete the high-precision uniform grinding of the lens surface.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision polishing platform for optical instrument lenses, comprising a processing platform (1), characterized in that: The processing platform (1) is equipped with an adjustment component, which includes two electric push rods (7). The output ends of the two electric push rods (7) are fixedly connected to a fixed plate (8). The bottom of the fixed plate (8) is fixedly connected to a drive motor (9) and an adjustment motor (10). The output end of the drive motor (9) is fixedly connected to a worm gear (13). The output end of the adjustment motor (10) is fixedly connected to a transmission shaft. The bottom of the transmission shaft is fixedly connected to a connector (16). The connector (16) is rotatably connected to a rotating shaft. A worm gear (14) and a connecting piece (17) are fixedly connected to the outside of the first rotating shaft (15). The worm gear (14) meshes with the worm (13). A rotary motor (18) is fixedly connected to the bottom of the connecting piece (17). A rotating shaft (19) is fixedly connected to the output end of the rotary motor (18). A grinding wheel (20) is fixedly connected to the bottom of the rotating shaft (19). A drive assembly is fixedly connected to the bottom of the top plate of the processing platform (1). A clamping assembly is fixedly connected to the top of the bottom plate of the processing platform (1).

2. The high-precision polishing platform for optical instrument lenses according to claim 1, characterized in that: The clamping assembly includes an annular base (12), a sliding ring (11) is rotatably connected inside the annular base (12), a clamping claw (2) is fixedly connected to the top of the sliding ring (11), the clamping claw (2) is rotatably connected to the top of the annular base (12), a limiting block (23) is fixedly connected inside the annular base (12), a fixing post (4) is fixedly connected to the outside of the sliding ring (11), a spring (22) is fixedly connected between the limiting block (23) and the fixing post (4), a platform (21) is fixedly connected to the top of the bottom plate of the processing platform (1), and the sliding ring (11) is rotatably connected to the outside of the platform (21).

3. The high-precision polishing platform for optical instrument lenses according to claim 1, characterized in that: The drive assembly includes a lead screw motor (3), with two fixed blocks fixedly connected to the lead screw of the lead screw motor (3). The two fixed blocks are fixedly connected to the bottom of the top plate of the processing platform (1). Two slide rods (6) are fixedly connected between the two fixed blocks. A slider (5) is slidably connected between the two slide rods (6). Two electric push rods (7) are fixedly connected to the top of the slider (5). A threaded hole is opened inside the slider (5). The lead screw of the lead screw motor (3) is threadedly connected to the inside of the threaded hole of the slider (5).

4. The high-precision polishing platform for optical instrument lenses according to claim 1, characterized in that: The bottom of the fixed plate (8) is fixedly connected to two connecting piles, and holes are opened inside the two connecting piles. The worm gear (13) is rotatably connected inside the holes.

5. The high-precision polishing platform for optical instrument lenses according to claim 1, characterized in that: The drive shaft has a hole inside, and the worm (13) is rotatably connected inside the hole.

6. The high-precision polishing platform for optical instrument lenses according to claim 1, characterized in that: The connector (16) has a groove inside, and the worm gear (14) is rotatably connected inside the groove.

7. The high-precision polishing platform for optical instrument lenses according to claim 2, characterized in that: A metal rod is installed on the outside of the sliding ring (11), and a handle is installed on the outside of the annular base (12). A hole is opened on the outside of the annular base (12), and the metal rod is slidably connected inside the hole.

8. A high-precision polishing platform for optical instrument lenses according to claim 2, characterized in that: The annular base (12) has a groove inside, and the fixing column (4), spring (22), and limiting block (23) are all arranged inside the groove.

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