Polishing device for optical lens

Abstract

The invention relates to the technical field of optical lens machining, in particular to an optical lens polishing device which comprises a base and other components, at least one polishing device for polishing an optical lens is installed on the base, and each polishing device comprises a first clamping assembly used for clamping the optical lens and a second clamping assembly used for clamping the optical lens. Polishing sand strips are arranged on the upper side and the lower side of the optical lens, the polishing sand strips are far away from or close to the optical lens through a second clamping assembly, at least three fixing cylinders are arranged below the optical lens, and the fixing cylinders are hollow. The polishing device is provided with the polishing sand strip, the ejector rod, the fixing cylinder and other components, the polishing sand strip can be adjusted to a proper shape for rotary polishing according to the curved surface or plane shape of the optical lens during polishing, the polishing process is not affected by the shape change of the optical lens, surface damage to the optical lens is reduced, and the polishing quality is improved. Therefore, the integrity and precision of the optical lens are protected, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lens processing, and particularly relates to a polishing device for optical lenses. Background Art

[0002] Optical lenses are based on optical glass or resin. By precisely designing their shapes and optical properties, they change the propagation direction, focusing ability, or spectral distribution of light, thereby achieving functions such as imaging, light collection, and light splitting. Optical lenses are widely used in various fields, such as industry, medicine, and aerospace. During the processing of optical lenses, in order to ensure that the lens surface is smooth, uniform, and free of defects, the optical lenses are usually polished.

[0003] Existing optical lens polishing devices, such as the polishing device for making optical lenses disclosed in the patent with the authorized announcement number CN217071828U, although the position of the polishing cotton can be adjusted by sliding the moving block, enabling the polishing surface to polish different positions of the optical lens, optical lenses can be divided into various types, such as convex lenses. These lenses have complex curved surfaces, and traditional fixed polishing wheels are difficult to adapt to the curvature changes, resulting in damage to the surface of the optical lens during polishing, thereby affecting the accuracy of the optical lens. In view of this, the present invention proposes a polishing device for optical lenses to solve the above-mentioned technical problems. Summary of the Invention

[0004] To overcome the shortcomings of the technical problems mentioned in the background art, the present invention provides a polishing device for optical lenses.

[0005] The technical solution is as follows: A polishing device for optical lenses includes a base. At least one polishing device for polishing optical lenses is installed on the base. The polishing device includes a first clamping assembly for clamping the optical lens. Grinding sand strips are provided both directly above and directly below the optical lens. The grinding sand strips are moved away from or closer to the optical lens through a second clamping assembly. At least three fixed cylinders are provided below the optical lens. The fixed cylinders are hollow. A top rod is slidably connected inside the fixed cylinder. The upper end of the top rod is arc-shaped. A first elastic member is provided between the top rod and the fixed cylinder. The top end of the top rod is in contact with the bottom surface of the grinding sand strip located on the lower side. The fixed cylinder is installed on the second clamping assembly located on the lower side.

[0006] As a further preferred solution, the longest length of the grinding sand strip is greater than the diameter of the optical lens, and the second clamping assembly clamps the side with the longest length of the grinding sand strip.

[0007] As a further preferred solution, the first clamping assembly includes at least one set of mounting brackets symmetrically installed on the base. A movable bracket is slidably connected to one side of the mounting brackets close to each other. A second elastic member is provided between the movable bracket and the mounting brackets. Electric clamping wheels are rotatably connected to both ends of the movable bracket, and a conical groove for clamping the optical lens is provided on the electric clamping wheels.

[0008] As a further preferred solution, the second clamping assembly includes movable blocks symmetrically arranged on the upper and lower sides inside the base. The movable blocks are driven by first electric telescopic rods installed on the base to move up and down. A sliding groove is provided on one side of the movable blocks close to each other. A heightening plate is slidably connected in the sliding groove. One end of the heightening plate is fixedly connected with a mounting seat. A clamping groove for clamping the grinding sand strip is provided on the mounting seat. A clamping plate is slidably connected in the clamping groove. The clamping plate abuts against the grinding sand strip. A first screw rod is threadedly connected to the mounting seat, and the first screw rod is rotatably connected to the clamping plate.

[0009] As a further preferred solution, a third elastic member is provided between the heightening plate and the movable block.

[0010] As a further preferred solution, a support assembly is further included. The support assembly includes a special-shaped support block slidably connected to one of the mounting brackets. The general shape of the special-shaped support block is concave. Support cylinders are symmetrically rotatably connected to the special-shaped support block. The support cylinders are in contact with the bottom surface of the optical lens. A second screw rod is threadedly connected to the mounting bracket, and the second screw rod is rotatably connected to the special-shaped support block.

[0011] As a further preferred solution, a water tank fixedly connected to the top surface of the base is further included. Sprayers are provided at the position of the optical lens. The sprayers are arranged up and down. The sprayers are communicated with the water tank through water pipes and water pumps. At least one leakage hole is provided inside the base, and a collection box is communicated with the leakage hole.

[0012] As a further preferred solution, a second electric telescopic rod and a placement table are further included. The placement table is slidably connected inside the base. The placement table is driven by the second electric telescopic rod installed on the outer side wall of the base to slide up and down.

[0013] The present invention has the following advantages: The present invention is provided with components such as grinding sand strips, ejector rods, and fixed cylinders. During polishing, the grinding sand strips can be adjusted to a suitable shape for rotary polishing according to the curved or flat shape of the optical lens, so that the grinding process is not affected by the shape change of the optical lens, reducing the surface damage to the optical lens, thereby protecting the integrity and precision of the optical lens and improving the work efficiency. Description of the Drawings

[0014] Figure 1 This is a schematic structural diagram of the present invention.

[0015] Figure 2 This is a cross-sectional view of components such as the first clamping assembly, grinding sand strip, and collection box of the present invention.

[0016] Figure 3 This is a schematic diagram of the first clamping assembly and the support assembly of the present invention.

[0017] Figure 4 This is a cross-sectional view of the first clamping assembly and the support assembly of the present invention.

[0018] Figure 5 This is a schematic diagram of the second clamping assembly and the grinding sand strip of the present invention.

[0019] Figure 6 This is a schematic diagram of components such as the heightening plate, mounting seat, and third elastic member of the present invention.

[0020] Figure 7 This is a schematic diagram of the fixed cylinder, first elastic member, and ejector rod of the present invention.

[0021] Figure 8 This is a schematic diagram of components such as the water tank, nozzle, and water pipe of the present invention.

[0022] Wherein: 101 - base, 1011 - leakage hole, 102 - optical lens, 103 - grinding sand strip, 201 - fixed cylinder, 202 - ejector rod, 203 - first elastic member, 301 - mounting bracket, 302 - moving bracket, 303 - second elastic member, 304 - electric clamping wheel, 3041 - tapered groove, 401 - mounting seat, 4011 - clamping groove, 402 - clamping plate, 403 - first screw rod, 404 - third elastic member, 405 - heightening plate, 406 - movable block, 4061 - sliding groove, 407 - first electric telescopic rod, 501 - special-shaped support block, 502 - support cylinder, 503 - second screw rod, 601 - water tank, 602 - water pump, 603 - water pipe, 604 - nozzle, 605 - collection box, 701 - second electric telescopic rod, 702 - placement table. Detailed implementation manners

[0023] The following will further illustrate the present invention in conjunction with specific embodiments. It should also be noted that unless otherwise clearly defined and limited, terms such as: setting, installation, connection, and coupling should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; 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 internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] An optical lens polishing device, such as Figures 1 - 8As shown in the figure, it includes a base 101, and three polishing devices for polishing the optical lens 102 are installed on the base 101. The polishing device includes a first clamping component for clamping the optical lens 102. The first clamping component can not only realize the function of clamping the optical lens 102, but also make the optical lens 102 rotate. Grinding strips 103 are arranged directly above and below the optical lens 102. The grinding strips 103 are made of flexible abrasives (such as alumina and silicon carbide, etc.) and can be used to finely grind the optical lens 102. The grinding strips 103 are moved away from or close to the optical lens 102 through the second clamping component. The longest length of the grinding strips 103 is greater than the diameter of the optical lens 102. The second clamping component clamps on the side with the longest length of the grinding strips 103. Three fixed cylinders 201 are arranged below the optical lens 102. The fixed cylinders 201 are hollow. A push rod 202 is slidably connected inside the fixed cylinder 201. The upper end of the push rod 202 is arc-shaped. A first elastic member 203 is arranged between the push rod 202 and the fixed cylinder 201. The first elastic member 203 is a spring. The top end of the push rod 202 is in contact with the bottom surface of the grinding strip 103 located on the lower side. It should be understood that in this embodiment, three fixed cylinders 201 are provided, and in combination with the arc-shaped upper end of the push rod 202, the grinding strip 103 located at the lower part can polish the optical lens 102 with a curved bottom surface. In other embodiments, multiple fixed cylinders can also be provided to adapt to the optical lens 102 with a more complex curvature, so as to provide a better polishing effect. The fixed cylinder 201 is installed on the second clamping component located on the lower side. Thus, it can be seen that the optical lens 102 is clamped by the first clamping component, and then the upper grinding strip 103 is made to approach the optical lens 102 through the second clamping component. If the optical lens 102 is flat, the grinding strip 103 is moved to a position where it contacts the top surface of the optical lens 102, and then the first clamping component is started to make the optical lens 102 rotate. Since the length of the grinding strip 103 is longer than the diameter of the optical lens 102, the grinding strip 103 can polish the top surface of the optical lens 102. After the polishing is completed, the upper grinding strip 103 returns to its original position. If the top surface of the optical lens 102 is curved, first the grinding strip 103 is moved to contact the top surface of the optical lens 102, and then the grinding strip 103 is continuously controlled to move downward, so that the grinding strip 103 will cover the top surface of the optical lens 102, thereby achieving complete fitting with the top surface of the optical lens 102. When both ends of the grinding strip 103 completely cross the bottom surface of the optical lens 102, the grinding strip 103 descends. In this way, the grinding strip 103 can automatically adjust according to the different shapes of the optical lens 102, so as to provide a uniform polishing effect. After the upper grinding strip 103 completes the grinding operation and returns to its original position, the lower grinding strip 103 is made to approach the optical lens 102 through the second clamping component. If the optical lens 102 is flat,Then, move the grinding strip 103 to a position where it contacts the bottom surface of the optical lens 102. Next, start the first clamping assembly to rotate the optical lens 102. Since the length of the grinding strip 103 is longer than the diameter of the optical lens 102, the grinding strip 103 can grind the bottom surface of the optical lens 102. If the bottom surface of the optical lens 102 is concave, first move the grinding strip 103 to contact the bottom surface of the optical lens 102, and then continue to control the grinding strip 103 to move upward. As a result, both ends of the lower grinding strip 103 need to completely cross the top surface of the optical lens 102. Since the fixed cylinder 201 is installed on the second clamping assembly located on the lower side, as the second clamping assembly located on the lower side continuously rises, the ejector rod 202 will push against the bottom surface of the grinding strip 103 to continuously rise, thereby causing the lower grinding strip 103 to form an upwardly protruding arc. When the ejector rod 202 touches the concave surface of the bottom surface of the optical lens 102, the optical lens 102 will react on the ejector rod 202, and then the ejector rod 202 will squeeze the first elastic member 203, causing the first elastic member 203 to deform, so as to adapt to the concave arc surface of the bottom surface of the optical lens 102. Next, start the first clamping assembly to rotate the optical lens 102, thereby realizing the grinding of the optical lens 102. In this way, the grinding strip 103 can automatically adapt to the curvature of the optical lens 102, making the grinding process unaffected by the shape change of the optical lens 102, reducing the surface damage to the optical lens 102, and thus protecting the integrity and precision of the optical lens 102.,

[0025] Specifically, the first clamping assembly includes three sets of mounting brackets 301 symmetrically installed on the base 101. A movable bracket 302 is slidably connected to the side of the mounting brackets 301 close to each other. The movable bracket 302 is circular arc-shaped. A second elastic member 303 is provided between the movable bracket 302 and the mounting brackets 301. The second elastic member 303 is specifically a spring. Electric clamping wheels 304 are rotatably connected to both ends of the circular arc of the movable bracket 302. A tapered groove 3041 for clamping the optical lens 102 is provided on the electric clamping wheels 304. It can be seen that by clamping the optical lens 102 into the tapered groove 3041 of the electric clamping wheels 304, the optical lens 102 can be clamped. The optical lens 102 in this embodiment is specifically circular. The first clamping assembly can adapt to optical lenses 102 of different sizes through the second elastic member 303, thereby increasing the adaptability of the device. When polishing and grinding are required, start the electric clamping wheels 304. Then, the electric clamping wheels 304 drive the optical lens 102 to rotate by itself relying on the frictional force with the optical lens 102, thereby completing the polishing of the optical lens 102.

[0026] Specifically, the second clamping assembly includes movable blocks 406 symmetrically arranged on the upper and lower sides inside the base 101. The movable blocks 406 are driven by the first electric telescopic rod 407 installed on the base 101 to move up and down. A sliding groove 4061 is provided on one side of the movable blocks 406 close to each other. A heightening plate 405 is slidably connected in the sliding groove 4061. A third elastic member 404 is provided between the heightening plate 405 and the movable blocks 406. The third elastic member 404 is specifically a spring. One end of the heightening plate 405 is fixedly connected with a mounting seat 401. A clamping groove 4011 for clamping the polishing sand strip 103 is provided on the mounting seat 401. A clamping plate 402 is slidably connected in the clamping groove 4011. The clamping plate 402 abuts against the polishing sand strip 103. Through the cooperation of the clamping groove 4011 and the clamping plate 402, the polishing sand strip 103 can be clamped. A first screw rod 403 is threadedly connected to the mounting seat 401. The first screw rod 403 is rotatably connected with the clamping plate 402. It can be seen that by rotating the first screw rod 403, the clamping plate 402 moves towards the polishing sand strip 103, so that the clamping plate 402 can clamp the polishing sand strip 103. When the polishing sand strip 103 acts on the curved surface, the polishing sand strip 103 will act on the heightening plate 405 in the reverse direction, causing the heightening plates 405 to approach each other. The heightening plates 405 pull the third elastic member 404, causing the third elastic member 404 to store elastic potential energy. Thus, the polishing sand strip 103 can adapt to different optical lenses 102. When the polishing sand strip 103 resets, the third elastic member 404 releases the elastic potential energy, driving the heightening plate 405 to reset. In this way, the polishing sand strip 103 can adapt to the curved surface shape of the optical lens 102, providing a uniform, precise and efficient polishing effect.

[0027] Furthermore, a support assembly is further included. The support assembly includes a special-shaped support block 501 slidably connected to one of the mounting brackets 301. The general shape of the special-shaped support block 501 is concave. Symmetrically rotatably connected to the special-shaped support block 501 are support cylinders 502. The support cylinders 502 are in contact with the bottom surface of the optical lens 102. A second screw rod 503 is threadedly connected to the mounting bracket 301. The second screw rod 503 is rotatably connected with the special-shaped support block 501. It can be seen that by rotating the second screw rod 503, the special-shaped support block 501 slides downward, so that the special-shaped support block 501 can adapt to optical lenses 102 of different thicknesses. When the optical lens 102 needs to rotate, since the support cylinders 502 are rotatably connected to the special-shaped support block 501, the support cylinders 502 will not affect the rotation of the optical lens 102, ensuring smooth movement of the optical lens 102 during the polishing process.

[0028] Furthermore, it also includes a water tank 601 fixedly connected to the top surface of the base 101. The water tank 601 is connected to the polishing liquid from the outside. A spray head 604 is provided at the optical lens 102. The spray heads 604 are arranged vertically. The spray head 604 is communicated with the water tank 601 through a water pipe 603 and a water pump 602. It can be seen that during the polishing process, the water pump 602 can be started. Then the water pump 602 extracts the polishing liquid in the water tank 601 and transports it to the spray head 604 through the water pipe 603. The spray head 604 sprays out the polishing liquid, making the effect better during the polishing of the optical lens 102, and the surface of the lens is smoother and flatter, achieving a higher-quality polishing effect. Two leakage holes 1011 are provided in the base 101. A collection box 605 is communicated with the leakage holes 1011. The polishing liquid and polishing waste after spraying will flow into the leakage holes 1011 and be collected by the collection box 605 for subsequent treatment.

[0029] Furthermore, it also includes a second electric telescopic rod 701 and a placement table 702. Two placement tables 702 are slidably connected in the base 101. The placement tables 702 are arranged between adjacent polishing devices. The placement table 702 is driven by the second electric telescopic rod 701 installed on the outer side wall of the base 101 to achieve vertical sliding. It can be seen that the optical lens 102 to be polished can be placed on the top surface of the placement table 702, and the vertical height can be adjusted by driving the second electric telescopic rod 701, so that the optical lens 102 to be polished can be aligned with the tapered groove 3041 of the electric clamping wheel 304. After the polishing of the previous optical lens 102 is completed, it is then taken away manually or by a manipulator. Then the optical lens 102 to be polished is directly pushed into the tapered groove 3041. In this way, the polishing efficiency of the optical lens 102 can be improved and the time of manual operation can be reduced.

[0030] It should be understood that the above description is only for exemplary purposes and does not mean to limit the present invention. Those skilled in the art will understand that the variant forms of the present invention will be included within the scope of the claims herein.

Claims

1. A polishing device for optical lenses, characterized in that: The invention comprises a base (101), on which is mounted at least one polishing device for polishing an optical lens (102), the polishing device comprising a first clamping assembly for clamping the optical lens (102), a grinding strip (103) being arranged directly above and directly below the optical lens (102), the grinding strip (103) being able to move away from or approach the optical lens (102) through a second clamping assembly, and a second grinding strip (103) being arranged below the optical lens (102). At least three fixed cylinders (201), the fixed cylinder (201) is hollow, a push rod (202) is slidably connected inside the fixed cylinder (201), the upper end of the push rod (202) is arc-shaped, a first elastic member (203) is arranged between the push rod (202) and the fixed cylinder (201), the top end of the push rod (202) is in contact with the bottom surface of the sanding strip (103) located at the lower side, and the fixed cylinder (201) is installed on the second clamping assembly located at the lower side.

2. The optical lens polishing device according to claim 1, characterized in that: The longest length of the sanding strip (103) is greater than the diameter of the optical lens (102), and the second clamping component is clamped on the side of the sanding strip (103) with the longest length.

3. The optical lens polishing device according to claim 2, characterized in that: The first clamping assembly comprises at least one set of mounting frames (301) symmetrically mounted on the base (101); a movable frame (302) is slidably connected to one side of the mounting frames (301) close to each other; a second elastic member (303) is provided between the movable frame (302) and the mounting frames (301); electric clamping wheels (304) are rotatably connected to both ends of the movable frame (302); and a conical groove (3041) for clamping the optical lens (102) is provided on the electric clamping wheel (304).

4. The optical lens polishing device according to claim 3, characterized in that: The second clamping assembly comprises movable blocks (406) symmetrically arranged on the upper and lower sides of the base (101); the movable blocks (406) are driven by a first electric telescopic rod (407) installed on the base (101) to move up and down; a sliding groove (4061) is arranged on a side of the movable blocks (406) close to each other; a height-increasing plate (405) is slidably connected in the sliding groove (4061); one end of the height-increasing plate (405) is A mounting seat (401) is fixedly connected, and a clamping groove (4011) for clamping the sanding strip (103) is provided on the mounting seat (401), a clamping plate (402) is slidably connected in the clamping groove (4011), and the clamping plate (402) abuts against the sanding strip (103), and a first screw rod (403) is threadedly connected on the mounting seat (401), and the first screw rod (403) is rotatably connected to the clamping plate (402).

5. The optical lens polishing device according to claim 4, characterized in that: A third elastic member (404) is provided between the height-increasing plate (405) and the movable block (406).

6. The optical lens polishing device according to claim 5, characterized in that: The invention also includes a support assembly, wherein the support assembly includes a special-shaped support block (501) slidably connected to one of the mounting frames (301), wherein the special-shaped support block (501) is roughly in the shape of a concave letter, and a support tube (502) is symmetrically rotatably connected to the special-shaped support block (501), wherein the support tube (502) contacts the bottom surface of the optical lens (102), and a second screw rod (503) is threadedly connected to the mounting frame (301), and the second screw rod (503) is rotatably connected to the special-shaped support block (501).

7. The optical lens polishing device according to claim 6, characterized in that: It also includes a water tank (601) fixedly connected to the top surface of the base (101); a nozzle (604) is arranged at the optical lens (102); the nozzle (604) is arranged up and down; the nozzle (604) is connected to the water tank (601) through a water pipe (603) and a water pump (602); at least one leakage hole (1011) is arranged in the base (101); and the leakage hole (1011) is connected to a collection box (605).

8. The optical lens polishing device according to claim 7, characterized in that: It also includes a second electric telescopic rod (701) and a placement table (702); the placement table (702) is slidably connected inside the base (101); the placement table (702) is driven by the second electric telescopic rod (701) installed on the outer wall of the base (101) to slide up and down.

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