Lens outer contour grinding machine

By designing a lens outer contour grinding machine driven by a dual-axis motor, using milling cutters and suction cup fixtures for precise milling, the problem of low grinding efficiency of resin lenses in the prior art is solved, and efficient grinding and matching of lenses of different shapes and sizes is achieved.

CN119550195AActive Publication Date: 2025-03-04NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Application Number
CN202510061029.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2025-03-04
Estimated Expiration
2045-01-15

AI Technical Summary

Technical Problem

It is difficult to effectively grind resin lenses in the prior art, especially when the lenses need to adapt to frames of various shapes and sizes, traditional grinding wheel grinding cannot be applied, and the milling efficiency of small milling cutters is low.

Method used

A lens outer profile grinding machine is designed, using a dual-axis motor to drive the gear box, accurately milling in the grinding chamber through a milling cutter, and quick clamping and grinding of the lenses are achieved using suction cup clamps and push rods.

Benefits of technology

It realizes efficient polishing of resin lenses of different shapes and sizes, improves the adaptability and accuracy of the lens matching with the frame, avoids lens scratches, and improves the grinding efficiency.

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Abstract

The invention relates to the technical field of mechanical equipment, in particular to a lens outer contour grinding machine which comprises a fixed shell, the transmission ends of the two sides of a first double-shaft motor are fixedly connected with first gear boxes correspondingly, and the two first gear boxes are symmetrically distributed on the two sides of the first double-shaft motor. According to the lens outer contour grinding machine, a driven gear drives a driven shaft to rotate, the driven shaft is connected with a second gearbox, meanwhile, the driven shaft drives a push rod and a suction cup clamp to conduct transmission, meanwhile, the suction cup clamp can be located in a third sliding groove to slide, and the push rod is located in a second sliding groove to slide; according to the introduction of the suction cup clamp, in order to complete clamping of the lens and the plano lens more quickly and conveniently and meanwhile avoid scratching of the lens, a suction cup type structure shown in the figure is designed to complete clamping, the lens or the plano lens is clamped in the middle of a suction cup in the using process, then threads are screwed by one hand, and the lens or the plano lens is clamped by the suction cup. And the lens is clamped by the sucking disc, so that clamping is completed.
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Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, in particular to a lens outer contour grinding machine. Background Art

[0002] Glasses are composed of lenses and frames, and are used to improve vision, protect the eyes or for decorative purposes. Glasses can correct a variety of vision problems, including myopia, hyperopia, astigmatism, presbyopia, strabismus or amblyopia.

[0003] When fitting and repairing lenses for glasses, in order to make the lenses adapt to the shape and size requirements of the frame, it is often necessary to properly grind the shape and size of the lens contour so that it matches the frame. In the past, glasses mostly used glass lenses, which could be ground on a grinding wheel when fitting. However, now glasses mostly use resin lenses, whose materials cannot be ground on a grinding wheel and need to be milled with a small milling cutter. The frames of glasses have various shapes and sizes, so we now want to design an automatic milling device that can mill resin lenses of different shapes and sizes. Summary of the invention

[0004] The purpose of the present invention is to provide a lens outer contour grinder to solve the problem raised in the above background technology that when fitting lenses for glasses, in order to make the lenses adapt to the shape and size requirements of the frame, it is often necessary to properly grind the shape and size of the lens contour so that it matches the frame. In the past, glasses mostly used glass lenses, which could be ground on a grinding wheel when fitting glasses, but now glasses mostly use resin lenses, whose materials cannot be ground on a grinding wheel and need to be milled with a small milling cutter. The frames of glasses have various shapes and sizes, so it is now desired to design an automatic milling device that can mill resin lenses of different shapes and sizes. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lens outer contour grinding machine, comprising a fixed shell, two grinding chambers are fixedly connected inside the fixed shell, a grinding frame is fixedly connected inside the grinding chamber, the two grinding chambers are symmetrically distributed inside the fixed shell, a dual-axis motor 1 is fixedly connected inside the fixed shell, the transmission ends on both sides of the dual-axis motor 1 are respectively fixedly connected to a first gear box, the two first gear boxes are symmetrically distributed on both sides of the dual-axis motor 1, the other side of the first gear box is connected to a second gear box through meshing, the other side of the second gear box is fixedly connected to a milling cutter, the milling cutter is located inside the grinding chamber, one side of the grinding chamber is fixedly connected to a mounting plate, the mounting plate is fixedly connected to the inside of the fixed shell, a slide groove 1 is provided on the inner wall of one side of the grinding chamber, a slide groove 2 is provided on the inner wall of the other side of the grinding chamber, a slide groove 3 is provided on the inner wall of the other side of the grinding chamber, a dual-axis motor 2 is movably connected inside the fixed shell, and the two ends of the dual-axis motor 2 are respectively fixedly connected to connecting The two connecting plates are symmetrically distributed at the two ends of the dual-axis motor 2, the bottoms of the two connecting plates are fixedly connected with sliders, the transmission ends at the two ends of the dual-axis motor 2 are fixedly connected with transmission gears, the two transmission gears are symmetrically distributed at the two ends of the dual-axis motor 2, the side surfaces of the transmission gears are connected with driven gears through meshing activities, the interior of the driven gear is fixedly connected with a driven shaft, the other end of the driven shaft is fixedly connected to the interior of the second gear box, the driven gear drives the driven shaft to rotate, and the driven shaft and the second gear are connected. The wheel box is connected, and the driven shaft drives the push rod and the suction cup clamp to transmit. At the same time, the suction cup clamp can be located inside the slide groove three to slide, and the push rod is located inside the slide groove two to slide, so as to complete the grinding of the lens. The introduction of the suction cup clamp is that in order to be able to complete the clamping of the lens and the flat mirror more quickly and conveniently, and to avoid scratches on the lens, a suction cup structure as shown in the figure is designed to complete the clamping. When in use, first clamp the lens or the flat mirror in the middle of the suction cup, and then tighten the thread with one hand to make the suction cup clamp the lens to complete the clamping.

[0005] Further preferably, a movable cover plate is movably connected to the top of the fixed shell, and two connecting hinges are fixedly connected to the top of the movable cover plate.

[0006] Further preferably, the two connecting hinges are symmetrically distributed on the top of the movable cover plate, and the top of the fixed shell is movably connected to two L-shaped cover plates.

[0007] Further preferably, the two L-shaped cover plates are symmetrically distributed on the top of the fixed shell, and a placement opening is opened inside each of the L-shaped cover plates.

[0008] Further preferably, the top of each L-shaped cover plate is fixedly connected with a fixed hinge, and the two sides of the fixed shell are fixedly connected with handles.

[0009] Further preferably, the two handles are symmetrically distributed on both sides of the fixed shell, and a push rod is fixedly connected to one end of the second gear box connected to the driven shaft.

[0010] Further preferably, a suction cup fixture is fixedly connected to one side of the second gear box, and a template is movably connected inside the mounting plate.

[0011] Further preferably, the push rod is located inside the second slide groove, the suction cup clamp is located inside the third slide groove, and the support mold is located inside the first slide groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the present invention, the driven gear drives the driven shaft to rotate. Since the driven shaft is connected to the second gear box, the driven shaft drives the push rod and the suction cup clamp to transmit the information. At the same time, the suction cup clamp can be located inside the third slide groove to slide, and the push rod can be located inside the second slide groove to slide, thereby completing the grinding of the lens. The introduction of the suction cup clamp is that in order to be able to clamp the lens and the flat mirror more quickly and conveniently and avoid scratches on the lens, a suction cup structure as shown in the figure is designed to complete the clamping. When in use, first clamp the lens or the flat mirror in the middle of the suction cup, and then tighten the thread with one hand to make the suction cup clamp the lens to complete the clamping.

[0014] In the present invention, the introduction to the matrix is ​​that the matrix is ​​an important tool for realizing the milling function. After pushing the lens and the planing mirror forward, we use a spring to connect the axis where the lens is located with the matrix hole, and the planing mirror acts as a cam. When the cam's longer curvature radius point contacts the matrix, the spring stretches and maintains a contraction trend. When the shorter curvature radius point contacts the matrix, the spring will be compressed and have a tendency to stretch, so that the lens and the milling cutter are fully in contact without excessive contact, completing the milling process. Regarding the push rod, in order to facilitate the forward pushing of the lens and the planing mirror without destroying the gear meshing, we connect the motor and the planing mirror to the axis where the lens is located, and extend a push rod to facilitate actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional main structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0017] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 The cross-sectional three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 5 It is a schematic diagram of the plane structure of the present invention;

[0020] Figure 6 The cross-sectional three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0021] In the figure: 1. Fixed shell; 2. Movable cover; 3. Connecting hinge; 4. L-shaped cover; 5. Placement port; 6. Fixed hinge; 7. Handle; 8. Dual-axis motor 1; 9. First gear box; 10. Second gear box; 11. Milling cutter; 12. Grinding frame; 13. Grinding chamber; 14. Slide 1; 15. Mounting plate; 16. Slide 2; 17. Slide 3; 18. Dual-axis motor 2; 19. Connecting plate; 20. Slider; 21. Transmission gear; 22. Driven gear; 23. Driven shaft; 24. Push rod; 25. Suction cup fixture; 26. Backing mold. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 6The present invention provides a technical solution: a lens outer contour grinding machine, comprising a fixed shell 1, two grinding chambers 13 are fixedly connected inside the fixed shell 1, a grinding frame 12 is fixedly connected inside the grinding chamber 13, the two grinding chambers 13 are symmetrically distributed inside the fixed shell 1, a dual-axis motor 8 is fixedly connected inside the fixed shell 1, the transmission ends on both sides of the dual-axis motor 8 are respectively fixedly connected to first gear boxes 9, the two first gear boxes 9 are symmetrically distributed on both sides of the dual-axis motor 8, the other side of the first gear box 9 is connected to a second gear box 10 through meshing activity, the second gear box 10 A milling cutter 11 is fixedly connected to the other side, and the milling cutter 11 is located inside the grinding chamber 13. A mounting plate 15 is fixedly connected to one side of the grinding chamber 13, and the mounting plate 15 is fixedly connected to the inside of the fixed shell 1. A slide groove 14 is opened on the inner wall of one side of the grinding chamber 13, and a slide groove 2 16 is opened on the inner wall of the other side of the grinding chamber 13. A slide groove 3 17 is opened on the inner wall of the other side of the grinding chamber 13. A dual-axis motor 2 18 is movably connected inside the fixed shell 1, and connecting plates 19 are fixedly connected to both ends of the dual-axis motor 2 18 respectively. The two connecting plates 19 are symmetrically distributed at both ends of the dual-axis motor 2 18. The bottom of the double-axis motor 19 is respectively fixedly connected with a slider 20, and the transmission ends of both ends of the double-axis motor 18 are respectively fixedly connected with a transmission gear 21, and the two transmission gears 21 are symmetrically distributed at both ends of the double-axis motor 18. The side surface of the transmission gear 21 is connected with a driven gear 22 through meshing activity, and the interior of the driven gear 22 is fixedly connected with a driven shaft 23, and the other end of the driven shaft 23 is fixedly connected to the interior of the second gear box 10. The lens to be polished is placed from the placement port 5, and the double-axis motor 1 8 and the double-axis motor 2 18 are started at the same time, wherein the double-axis motor 1 8 drives the first gear box 9 and then passes through the first gear box 9 drives the second gear box 10 so that the milling cutter 11 rotates, and the lens is polished by the milling cutter 11. At the same time, the dual-axis motor 18 drives the transmission gear 21 to rotate, and then drives the driven gear 22 to rotate through the transmission gear 21, and finally the driven gear 22 drives the driven shaft 23 to rotate. Since the driven shaft 23 is connected to the second gear box 10, the driven shaft 23 drives the push rod 24 and the suction cup clamp 25 to transmit, and at the same time, the suction cup clamp 25 can be located in the inner part of the slide groove 17 to slide, and the push rod 24 is located in the inner part of the slide groove 16 to slide, thereby completing the grinding of the lens.

[0024] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the top of the fixed shell 1 is movably connected to a movable cover plate 2, the top of the movable cover plate 2 is fixedly connected to two connecting hinges 3, the two connecting hinges 3 are symmetrically distributed on the top of the movable cover plate 2, the top of the fixed shell 1 is movably connected to two L-shaped cover plates 4, the two L-shaped cover plates 4 are symmetrically distributed on the top of the fixed shell 1, each L-shaped cover plate 4 is respectively provided with a placement opening 5 inside, the top of each L-shaped cover plate 4 is respectively fixedly connected to a fixed hinge 6, and handles 7 are respectively fixedly connected to both sides of the fixed shell 1, and the two handles 7 are symmetrically distributed on both sides of the fixed shell 1.

[0025] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, one end of the second gear box 10 connected to the driven shaft 23 is fixedly connected with a push rod 24, one side of the second gear box 10 is fixedly connected with a suction cup clamp 25, the inside of the mounting plate 15 is movably connected with a backing mold 26, the push rod 24 is located inside the second slide groove 16, the suction cup clamp 25 is located inside the third slide groove 17, and the backing mold 26 is located inside the first slide groove 14. The introduction of the suction cup clamp 25 is that in order to be able to clamp the lens and the flat mirror more quickly and conveniently and avoid scratching the lens, a suction cup structure as shown in the figure is designed to complete the clamping. When in use, first clamp the lens or the flat mirror in the middle of the suction cup, and then tighten the thread with one hand to make the suction cup clamp the lens to complete the clamping. The introduction about the backing mold 26 is that the backing mold 26 is an important tool for realizing the milling function. After pushing the lens and the planing mirror forward, we use a spring to connect the axis where the lens is located with the hole of the backing mold 26, and the planing mirror acts as a cam. When the point with a longer curvature radius of the cam contacts the backing mold 26, the spring stretches and maintains a contraction trend; when the point with a shorter curvature radius contacts the backing mold 26, the spring will be compressed and have a tendency to stretch, so that the lens and the milling cutter are fully in contact without excessive contact, completing the milling process. Regarding the push rod 24, in order to facilitate the forward pushing of the lens and the planing mirror without destroying the gear meshing, we connect the motor and the planing mirror to the axis where the lens is located, and extend a push rod 24 for easy actual operation.

[0026] The use method and advantages of the present invention: When the lens outer contour grinding machine is used, the working process is as follows:

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when using the lens outer contour grinding machine, first put the lens to be ground from the placement port 5, and start the dual-axis motor 1 8 and the dual-axis motor 2 18 at the same time, wherein the dual-axis motor 1 8 drives the first gear box 9 and then transmits the second gear box 10 through the first gear box 9 so that the milling cutter 11 rotates, and the lens is ground by the milling cutter 11, and at the same time the dual-axis motor 2 18 drives the transmission gear 21 to rotate, and then drives the driven gear 22 to rotate through the transmission gear 21, and finally the driven gear 22 drives the driven shaft 23 to rotate. Since the driven shaft 23 is connected to the second gear box 10, the driven shaft 23 drives the push rod 24 and the suction cup clamp 25 to transmit, and at the same time, the suction cup clamp 25 can be located inside the slide groove 3 17 to slide, and the push rod 24 is located inside the slide groove 2 16 to slide, thereby completing the grinding of the lens, wherein the introduction of the suction cup clamp 25 is that in order to be faster and more convenient In order to complete the clamping of the lens and the plano mirror efficiently and avoid scratches on the lens, a suction cup structure as shown in the figure is designed to complete the clamping. When in use, first clamp the lens or the plano mirror in the middle of the suction cup, and then tighten the thread with one hand to make the suction cup clamp the lens to complete the clamping. The introduction of the backing mold 26 is that the backing mold 26 is an important tool for realizing the milling function. After pushing the lens and the plano mirror forward, we use a spring to connect the axis where the lens is located with the hole of the backing mold 26, and the plano mirror serves as a cam. When the point with a longer curvature radius of the cam contacts the backing mold 26, the spring stretches and maintains a contraction trend; when the point with a shorter curvature radius contacts the backing mold 26, the spring will be compressed and tend to stretch, so that the lens is fully in contact with the milling cutter without excessive contact, completing the milling process. Regarding the push rod 24, in order to facilitate the forward pushing of the lens and the plano mirror without destroying the gear meshing, we connect the motor and the plano mirror to the axis where the lens is located, and extend a push rod 24 to facilitate actual operation.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lens outer contour grinding machine, comprising a fixed housing (1), characterized in that: Two grinding chambers (13) are fixedly connected inside the fixed shell (1), and a grinding frame (12) is fixedly connected inside the grinding chamber (13). The two grinding chambers (13) are symmetrically distributed inside the fixed shell (1). A dual-axis motor (8) is fixedly connected inside the fixed shell (1), and the transmission ends on both sides of the dual-axis motor (8) are respectively fixedly connected to a first gear box (9), and the two first gear boxes (9) are symmetrically distributed on both sides of the dual-axis motor (8). The other side of the first gear box (9) is connected to a second gear box (10) through meshing, and the other side of the second gear box (10) is fixedly connected to a milling cutter (11), and the milling cutter (11) is located inside the grinding chamber (13). One side of the grinding chamber (13) is fixedly connected to a mounting plate (15), and the mounting plate (15) is fixedly connected to the inside of the fixed shell (1). A slide groove is provided on the inner wall of one side of the grinding chamber (13). (14), a second slide groove (16) is provided on the inner wall of the other side of the grinding chamber (13), a third slide groove (17) is provided on the inner wall of the other side of the grinding chamber (13), a second dual-axis motor (18) is movably connected inside the fixed housing (1), and two ends of the second dual-axis motor (18) are respectively fixedly connected with connecting plates (19), and the two connecting plates (19) are symmetrically distributed at the two ends of the second dual-axis motor (18), and the bottoms of the two connecting plates (19) are respectively fixed A slider (20) is connected, and the transmission ends at both ends of the dual-axis motor (18) are respectively fixedly connected with transmission gears (21), and the two transmission gears (21) are symmetrically distributed at the two ends of the dual-axis motor (18). The side surface of the transmission gear (21) is connected with a driven gear (22) through meshing movement, and the interior of the driven gear (22) is fixedly connected with a driven shaft (23), and the other end of the driven shaft (23) is fixedly connected to the interior of the second gear box (10).

2. A lens outer contour grinding machine according to claim 1, characterized in that: The top of the fixed shell (1) is movably connected to a movable cover plate (2), and the top of the movable cover plate (2) is fixedly connected to two connecting hinges (3).

3. A lens outer contour grinding machine according to claim 2, characterized in that: The two connecting hinges (3) are symmetrically distributed on the top of the movable cover plate (2), and the top of the fixed shell (1) is movably connected to two L-shaped cover plates (4).

4. A lens outer contour grinding machine according to claim 3, characterized in that: The two L-shaped cover plates (4) are symmetrically distributed on the top of the fixed housing (1), and a placement opening (5) is respectively provided inside each of the L-shaped cover plates (4).

5. A lens outer contour grinding machine according to claim 4, characterized in that: The top of each L-shaped cover plate (4) is fixedly connected to a fixed hinge (6), and the two sides of the fixed shell (1) are fixedly connected to handles (7).

6. A lens outer contour grinding machine according to claim 5, characterized in that: The two handles (7) are symmetrically distributed on both sides of the fixed housing (1), and a push rod (24) is fixedly connected to one end of the second gear box (10) connected to the driven shaft (23).

7. The lens outer contour grinding machine according to claim 1, characterized in that: A suction cup fixture (25) is fixedly connected to one side of the second gear box (10), and a template (26) is movably connected inside the mounting plate (15).

8. The lens outer contour grinding machine according to claim 6, characterized in that: The push rod (24) is located inside the second slide groove (16), the suction cup clamp (25) is located inside the third slide groove (17), and the support mold (26) is located inside the first slide groove (14).

Citation Information

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