Trimming device for high-precision optical lens production and processing

Abstract

The utility model relates to the technical field of optical lens production and processing, and discloses a trimming device for high-precision optical lens production and processing, which comprises an operation table and a polishing head, the middle part of the top end of the operation table is fixedly connected with a U-shaped block, the outside of the U-shaped block is fixedly connected with a protection box, the rear side of the protection box is fixedly connected with a hydraulic cylinder, and the hydraulic cylinder is fixedly connected with the polishing head. A tooth plate is fixedly connected to the driving end of the hydraulic cylinder, a positioning table is rotatably connected to the inner wall of the middle of the U-shaped block, rotating shafts are fixedly connected to the left side and the right side of the exterior of the positioning table, and gears are fixedly connected to the exteriors of the ends, close to the protection box, of the rotating shafts. According to the grinding device, the time needed for replacing the lens is shortened through transverse rotation and a rapid adsorption mechanism, in addition, the structure for rapidly replacing the grinding heads is designed, so that an operator can rapidly switch the grinding heads of different types and specifications in the production process, and the downtime of equipment is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of optical lenses, in particular to a trimming device for production and processing of high-precision optical lenses. Background Art

[0002] Optical lenses refer to glass lenses that are made by mixing high-purity oxides of silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium, etc. according to a specific formula, then melting them at high temperature in a platinum crucible, stirring them evenly with ultrasound to remove bubbles, and then slowly cooling them over a long period of time. High-precision optical lenses need to be trimmed during the production process or before use.

[0003] Lens trimming devices typically use a grinding wheel to remove excess material to achieve precise shapes and sizes. This method involves using a rotating grinding wheel covered with fine abrasive particles, which can be made of hard materials such as silicon carbide, aluminum oxide, or diamond. When the grinding wheel comes into contact with the lens, the friction causes the abrasive particles to gradually remove a thin layer of material from the lens surface, thereby achieving fine adjustments to the edge or overall shape of the lens.

[0004] Trimming is a key process that directly affects the quality and precision of lenses. Traditional optical lens trimming devices have some problems. On the one hand, their structure is relatively fixed and cannot be adjusted. They can only trim optical lenses of fixed sizes, and the lenses are prone to movement during the trimming process. On the other hand, since the grinding head is usually fixed with bolts and difficult to disassemble, it is inconvenient to replace the grinding head, making it difficult to meet the trimming needs of lenses of different types and specifications. At the same time, the operation of replacing lenses is also relatively cumbersome. Therefore, in order to solve the above problems, a trimming device for high-precision optical lens production and processing is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a trimming device for the production and processing of high-precision optical lenses, aiming to improve the problems in the prior art that lenses of different sizes cannot be quickly fixed and different grinding heads cannot be quickly replaced.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A trimming device for the production and processing of high-precision optical lenses comprises an operating table and a grinding head, wherein a U-shaped block is fixedly connected to the middle part of the top of the operating table, a protective box is fixedly connected to the outside of the U-shaped block, a hydraulic cylinder is fixedly connected to the rear side of the protective box, a toothed plate is fixedly connected to the driving end of the hydraulic cylinder, a positioning table is rotatably connected to the inner wall of the middle part of the U-shaped block, a rotating shaft is fixedly connected to the left and right sides of the outside of the positioning table, a gear is fixedly connected to the outside of one end of the rotating shaft close to the protective box, a rotating motor is fixedly connected to the middle part of the interior of the positioning table, a placing plate is fixedly connected to the driving end of the rotating motor, a negative pressure pump is provided on the outside of the placing plate, an adsorption hole is provided on the top of the placing plate, and a moving component for adjusting the position of the grinding head is provided on the top of the operating table;

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

[0009] The moving assembly includes two Y-axis moving mechanisms, the bottom ends of the two Y-axis moving mechanisms are fixedly connected to the top of the operating table, the top ends of the two Y-axis moving mechanisms are externally provided with an X-axis moving mechanism, and the outside of the X-axis moving mechanism is provided with a Z-axis moving mechanism;

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

[0011] The front side of the Z-axis moving mechanism is provided with a driving motor, the outside of the driving motor is fixedly connected to two limiting cylinders, the middle part of the limiting cylinder is movably connected to a card roller, the outer middle part of the card roller is fixedly connected to a limiting ring, the outer sleeve of the card roller is provided with a return spring, the end of the card roller away from the grinding head is fixedly connected to a rotary block, the front side of the limiting cylinder is provided with a limiting groove, the outer middle part of the card roller is fixedly connected to the limiting roller, and the top end of the grinding head is provided with two card holes;

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

[0013] The outer teeth of the gear are meshed with the top teeth of the tooth plate, and the bottom end of the placement plate is externally rotatably connected to the top end of the positioning platform;

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

[0015] The outer rotation of the rotating shaft is connected to the middle of the left and right sides of the U-shaped block, and a sensor is provided in the middle of the top of the placement plate, and the sensor is electrically connected to the negative pressure pump;

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

[0017] The outer portion of the tooth plate is slidably connected to the inner wall of the protection box, and the outer portion of the gear is slidably connected to the inner wall of the protection box;

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

[0019] The outer portion of the limiting roller is slidably connected to the inner wall of the limiting groove, the outer portion of the limiting ring is slidably connected to the inner wall of the limiting cylinder, the outer portion of the clamping roller is engaged with the inner wall of the clamping hole, and the outer portion of the top end of the grinding head is engaged with the middle portion of the driving motor;

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

[0021] The side of the reset spring close to the rotary block is fixedly connected to the side of the limiting ring away from the rotary block, and the side of the reset spring away from the rotary block is fixedly connected to the side of the inner wall of the limiting cylinder close to the grinding head.

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

[0023] 1. In the present invention, the hydraulic cylinder is started to drive the tooth plate to mesh with the gear, so that the gear drives the positioning table to rotate 90 degrees in the U-shaped block through the rotating shaft. At this time, the optical lens can be placed on the placement plate. The sensor senses the presence of the lens and transmits information to the negative pressure pump. The negative pressure pump is started to adsorb the lens through the adsorption hole. Then the hydraulic cylinder is started to drive the tooth plate to retract and then reset the positioning table. During the polishing process, the rotating motor is started to drive the fixed lens to rotate, thereby realizing the lateral rotation and rapid adsorption mechanism, reducing the time required for lens replacement and improving the overall production efficiency.

[0024] 2. In the present invention, by rotating the rotary blocks on both sides of the drive motor, the rotary blocks drive the limit roller to slide outward along the limit groove, so that the squeezed and limited card roller retracts into the limit cylinder, unlocking the clamping fixation of the grinding head, thereby realizing a structure for quickly replacing the grinding head through design, allowing operators to quickly switch between grinding heads of different types and specifications during the production process, reducing equipment downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a trimming device for producing and processing high-precision optical lenses proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the gears of a trimming device for producing and processing high-precision optical lenses proposed in the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a rotating motor for a trimming device used in the production and processing of high-precision optical lenses proposed in the utility model;

[0028] Figure 4This is a schematic structural diagram of a grinding head for a trimming device used in the production and processing of high-precision optical lenses proposed in the present invention;

[0029] Figure 5 The present invention is a schematic structural diagram of a trimming device for producing and processing high-precision optical lenses.

[0030] Legend:

[0031] 1. Operating table; 2. Grinding head; 3. U-shaped block; 4. Protective box; 5. Hydraulic cylinder; 6. Tooth plate; 7. Positioning table; 8. Rotating shaft; 9. Gear; 10. Rotating motor; 11. Placement plate; 12. Negative pressure pump; 13. Adsorption hole; 14. Y-axis moving mechanism; 15. X-axis moving mechanism; 16. Z-axis moving mechanism; 17. Driving motor; 18. Limiting cylinder; 19. Card roller; 20. Limiting ring; 21. Reset spring; 22. Rotary block; 23. Limiting groove; 24. Limiting roller; 25. Card hole; 26. Sensor. DETAILED DESCRIPTION

[0032] 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 embodiments described 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 technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figures 1 to 3 The utility model provides an embodiment: a trimming device for the production and processing of high-precision optical lenses, comprising an operating table 1 and a grinding head 2. The operating table 1 is a rectangular flat plate structure made of a solid metal material, with four supporting legs provided at the four corners of the bottom. The grinding head 2 is used for trimming optical lenses. A U-shaped block 3 is fixedly connected to the middle of the top of the operating table 1. The U-shaped block 3 is in the shape of a "U" with the opening fixed forward. A protective box 4 is fixedly connected to the outside of the U-shaped block 3. The protective box 4 is a rectangular box made of a metal material.

[0034] refer to Figure 2 、 Figure 3 The rear side of the protective box 4 is fixedly connected to a hydraulic cylinder 5, and the driving end of the hydraulic cylinder 5 is fixedly connected to a toothed plate 6. The outer portion of the toothed plate 6 is slidably connected to the inner wall of the protective box 4. The driving end of the hydraulic cylinder 5 is connected to the toothed plate 6, and the toothed plate 6 is driven by hydraulic pressure to slide on the inner wall of the protective box 4. The middle inner wall of the U-shaped block 3 is rotatably connected to a positioning platform 7. The positioning platform 7 is used to position and fix the optical lens to keep it stable during the trimming process.

[0035] The left and right sides of the exterior of the positioning platform 7 are fixedly connected with a rotating shaft 8, and the left and right sides of the positioning platform 7 are fixed with symmetrical rotating shafts 8. The exterior of the rotating shaft 8 is rotatably connected to the middle of the left and right sides of the U-shaped block 3, and the rotating shaft 8 on the right side drives the positioning platform 7 to rotate stably by rotating in the middle of the left and right sides of the U-shaped block 3. The exterior of the rotating shaft 8 close to the protective box 4 is fixedly connected with a gear 9, and the left rotating shaft 8 passes through the protective box 4 to connect to the gear 9. The exterior of the gear 9 is slidably connected to the inner wall of the protective box 4, and the external teeth of the gear 9 are meshed with the top teeth of the tooth plate 6. The gear 9 rotates under the drive of the tooth plate 6, and drives the positioning platform 7 to rotate through the rotating shaft 8.

[0036] A rotating motor 10 is fixedly connected to the middle of the interior of the positioning platform 7. The driving end of the rotating motor 10 is fixedly connected to a placement tray 11. After the rotating motor 10 is started, it drives the placement tray 11 to rotate at high speed, so that the optical lens can be evenly polished during the trimming process. The front side of the positioning platform 7 is provided with heat dissipation holes, which are connected to the position of the rotating motor 10 to help the rotating motor 10 dissipate heat. The bottom end of the placement tray 11 is externally rotatably connected to the top of the positioning platform 7. The placement tray 11 is used to place the optical lens. Driven by the rotating motor 10, the placement tray 11 can stably rotate at the top position of the positioning platform 7.

[0037] A negative pressure pump 12 is provided on the outside of the placement tray 11. The negative pressure pump 12 generates an adsorption force on the lens through the adsorption hole 13, firmly fixing the lens on the placement tray 11 to prevent the lens from moving during the trimming process. A sensor 26 is provided in the middle of the top of the placement tray 11. The sensor 26 is a small block structure composed of electronic components. The sensor 26 is electrically connected to the negative pressure pump 12. The top of the placement tray 11 is provided with an adsorption hole 13. The sensor 26 is electrically connected to the negative pressure pump 12. When the optical lens is placed on the placement tray 11, the sensor 26 can promptly sense the presence of the lens and transmit information to the negative pressure pump 12, so that the negative pressure pump 12 starts to adsorb and fix the lens through the adsorption hole 13.

[0038] refer to Figure 1, a moving assembly for adjusting the position of the grinding head 2 is provided at the top of the operating table 1. The moving assembly includes two Y-axis moving mechanisms 14, the bottom ends of the two Y-axis moving mechanisms 14 are fixedly connected to the top of the operating table 1, an X-axis moving mechanism 15 is provided on the outside of the top of the two Y-axis moving mechanisms 14, and a Z-axis moving mechanism 16 is provided on the outside of the X-axis moving mechanism 15. The Y-axis moving mechanism 14, the X-axis moving mechanism 15, and the Z-axis moving mechanism 16 are provided at the top of the operating table 1 to adjust the position of the grinding head 2 so that it can accurately align with the edge of the optical lens for trimming operations. Including movement adjustment in the Y-axis, X-axis, and Z-axis directions, wherein the Y-axis moving mechanism 14 and the X-axis moving mechanism 15 are both axially adjusted by a threaded rod drive mechanism, while the Z-axis moving mechanism 16 drives the limited grinding head 2 up and down through a hydraulic mechanism. A ring block is provided on the front side of the bottom end of the Z-axis moving mechanism 16 to limit the position of the drive motor 17, so that the drive motor 17 is fixed at the top of the ring block to drive the grinding head 2 to rotate.

[0039] refer to Figure 4 、 Figure 5 A drive motor 17 is provided on the front side of the Z-axis moving mechanism 16, and the drive motor 17 consists of a motor and a drive tube. The outer top of the grinding head 2 is engaged with the middle part of the drive motor 17, and the grinding head 2 and the drive tube of the drive motor 17 are engaged and fixed. The outside of the drive motor 17 is fixedly connected to two limit cylinders 18, and the limit cylinders 18 provide installation and limiting functions for the card roller 19. The middle part of the limit cylinder 18 is movably connected to the card roller 19, and the card roller 19 is used to fix the grinding head 2 on the drive motor 17. The middle of the outer part of the card roller 19 is fixedly connected to the limit ring 20, and the outer part of the limit ring 20 is slidably connected to the inner wall of the limit cylinder 18. The limit ring 20 plays the role of limiting the movement of the card roller 19 in the limit cylinder 18.

[0040] A return spring 21 is provided on the outside of the card roller 19. The side of the return spring 21 close to the rotary block 22 is fixedly connected to the side of the limiting ring 20 away from the rotary block 22. The side of the return spring 21 away from the rotary block 22 is fixedly connected to the side of the inner wall of the limiting cylinder 18 close to the grinding head 2. The return spring 21 provides a restoring force during the installation process of the card roller 19, so that the card roller 19 can be tightly engaged with the card hole 25 of the grinding head 2.

[0041] The end of the clamping roller 19 away from the grinding head 2 is fixedly connected to a rotary block 22. When the clamping roller 19 is not engaged with the grinding head 2, the rotary block 22 is a short distance away from the limiting cylinder 18. The rotary block 22 is used to manually rotate the clamping roller 19, driving the clamping roller 19 to move within the limiting cylinder 18, thereby fixing and removing the grinding head 2. A limiting groove 23 is provided on the front side of the limiting cylinder 18, and the limiting groove 23 is a downward hook-shaped groove. A limiting roller 24 is fixedly connected to the middle of the outer portion of the clamping roller 19. The outer portion of the limiting roller 24 is slidably connected to the inner wall of the limiting groove 23. The limiting groove 23 serves to limit the rotation angle and position of the clamping roller 19. Two clamping holes 25 are provided on the outer top of the grinding head 2. The outer portion of the clamping roller 19 is engaged with the inner wall of the clamping holes 25. The clamping holes 25 are used to cooperate with the clamping roller 19 to fix the grinding head 2 on the drive motor 17.

[0042] Working Principle: When in use, first select the appropriate grinding head 2 according to the type of optical lens and align it with the drive motor 17 and insert it. Then, rotate the rotary block 22, driving the limiting roller 24 to rotate along the limiting groove 23. During the rotation process, the rotary block 22 will drive the clamping roller 19 to rotate and simultaneously move closer to the clamping hole 25 of the grinding head 2 until the clamping roller 19 engages with the clamping hole 25. At this time, the return spring 21 is in a compressed state, thereby quickly fixing the grinding head 2.

[0043] After fixing the grinding head 2, start the hydraulic cylinder 5 to drive the tooth plate 6 to slide on the inner wall of the protective box 4 so that it meshes with the teeth of the gear 9, and then the gear 9 drives the positioning table 7 to rotate ninety degrees in the U-shaped block 3 through the rotating shaft 8. At this time, the placement plate 11 fixed by the positioning table 7 is horizontally aligned with the front side, and the user can place the optical lens on the placement plate 11. After placement, the sensor 26 will promptly sense the presence of the lens and transmit information to the negative pressure pump 12. The negative pressure pump 12 starts and quickly adsorbs and fixes the lens through the adsorption hole 13. After fixing the lens, start the hydraulic cylinder 5 again to drive the tooth plate 6 to retract and slide in the protective box 4, so that the protective box 4 meshing gear 9 rotates in the opposite direction, driving the positioning table 7 to reset. At this time, start the rotating motor 10 to drive the placement plate 11 to rotate at high speed. Finally, the Y-axis moving mechanism 14, the X-axis moving mechanism 15, and the Z-axis moving mechanism 16 are started to adjust the X-, Y-, and Z-axes of the grinding head 2 until the grinding head 2 can be aligned with the edge of the lens. The drive motor 17 is then started to rotate the grinding head 2 to trim the lens.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A trimming device for producing and processing high-precision optical lenses, comprising an operating table (1) and a grinding head (2), characterized in that: A U-shaped block (3) is fixedly connected to the middle of the top of the operating table (1), a protective box (4) is fixedly connected to the outside of the U-shaped block (3), a hydraulic cylinder (5) is fixedly connected to the rear side of the protective box (4), a toothed plate (6) is fixedly connected to the driving end of the hydraulic cylinder (5), a positioning table (7) is rotatably connected to the inner wall of the middle of the U-shaped block (3), a rotating shaft (8) is fixedly connected to the left and right sides of the outside of the positioning table (7), a gear (9) is fixedly connected to the outside of the rotating shaft (8) close to the protective box (4), a rotating motor (10) is fixedly connected to the middle of the inside of the positioning table (7), a placement plate (11) is fixedly connected to the driving end of the rotating motor (10), a negative pressure pump (12) is provided on the outside of the placement plate (11), an adsorption hole (13) is provided at the top of the placement plate (11), and a moving component for adjusting the position of the grinding head (2) is provided at the top of the operating table (1).

2. The trimming device for producing and processing high-precision optical lenses according to claim 1, characterized in that: The moving assembly includes two Y-axis moving mechanisms (14), the bottom ends of the two Y-axis moving mechanisms (14) are fixedly connected to the top end of the operating table (1), an X-axis moving mechanism (15) is arranged outside the top end of the two Y-axis moving mechanisms (14), and a Z-axis moving mechanism (16) is arranged outside the X-axis moving mechanism (15).

3. The trimming device for producing and processing high-precision optical lenses according to claim 2, characterized in that: A driving motor (17) is provided on the front side of the Z-axis moving mechanism (16), the outside of the driving motor (17) is fixedly connected to two limiting cylinders (18), the middle of the limiting cylinder (18) is movably connected to a clamping roller (19), the outer middle of the clamping roller (19) is fixedly connected to a limiting ring (20), the outer sleeve of the clamping roller (19) is provided with a return spring (21), the end of the clamping roller (19) away from the grinding head (2) is fixedly connected to a rotary block (22), the front side of the limiting cylinder (18) is provided with a limiting groove (23), the outer middle of the clamping roller (19) is fixedly connected to a limiting roller (24), and the top of the grinding head (2) is provided with two clamping holes (25).

4. The trimming device for producing and processing high-precision optical lenses according to claim 1, characterized in that: The outer teeth of the gear (9) are meshed with the top teeth of the tooth plate (6), and the bottom end of the placement plate (11) is externally rotatably connected to the top end of the positioning platform (7).

5. The trimming device for producing and processing high-precision optical lenses according to claim 1, characterized in that: The external rotation of the rotating shaft (8) is connected to the middle of the left and right sides of the U-shaped block (3), and a sensor (26) is provided at the middle of the top of the placement plate (11). The sensor (26) is electrically connected to the negative pressure pump (12).

6. The trimming device for producing and processing high-precision optical lenses according to claim 1, characterized in that: The outer portion of the tooth plate (6) is slidably connected to the inner wall of the protection box (4), and the outer portion of the gear (9) is slidably connected to the inner wall of the protection box (4).

7. The trimming device for producing and processing high-precision optical lenses according to claim 3, characterized in that: The outer portion of the limiting roller (24) is slidably connected to the inner wall of the limiting groove (23), the outer portion of the limiting ring (20) is slidably connected to the inner wall of the limiting cylinder (18), the outer portion of the clamping roller (19) is engaged with the inner wall of the clamping hole (25), and the outer portion of the top end of the grinding head (2) is engaged with the middle portion of the driving motor (17).

8. The trimming device for producing and processing high-precision optical lenses according to claim 3, characterized in that: The side of the return spring (21) close to the rotary block (22) is fixedly connected to the side of the limiting ring (20) away from the rotary block (22), and the side of the return spring (21) away from the rotary block (22) is fixedly connected to the side of the inner wall of the limiting cylinder (18) close to the grinding head (2).

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