Clamping device capable of avoiding lens abrasion

Abstract

The utility model discloses a clamping device for avoiding lens wear, which comprises a mounting frame and a lens, a first fixing frame is fixedly mounted in the mounting frame, a second fixing frame is arranged on the first fixing frame, two groups of symmetrically distributed positioning seats are arranged on the second fixing frame, mounting rings are rotatably mounted on the two groups of positioning seats, and the lens is arranged on the mounting ring. A mounting ring is arranged on the positioning seat, a first gear ring sleeves the mounting ring, a plurality of groups of adjusting frames which are annularly distributed are arranged in the positioning seat, the plurality of groups of adjusting frames are rotationally connected with the positioning seat through adjusting shafts, third gears sleeve the plurality of groups of adjusting shafts, and rubber blocks are fixedly mounted on the plurality of groups of adjusting frames; the mounting ring is matched with the first gear ring and the third gear to achieve synchronous rotation adjustment of the multiple sets of adjusting frames and the rubber blocks on the adjusting frames, then the multiple sets of rubber blocks can rapidly adjust the diameter of a circle defined by the multiple sets of rubber blocks, the lens is fixed among the multiple sets of rubber blocks, and abrasion to the surface of the lens in the lens clamping and machining process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of lens processing technology, specifically a clamping device to prevent lens wear. Background Technology

[0002] The main types of lens materials include glass lenses, resin lenses, PC lenses, MR lenses, crystal lenses, photochromic coated lenses, and nylon lenses. Each material has its unique characteristics and applicable scenarios. Glass lenses are known for their superior optical properties and stable refractive index, and have excellent light transmittance and mechanical and chemical properties. Resin lenses are one of the most common lens materials on the market, and are characterized by being lightweight, comfortable to wear, impact-resistant, and not easily broken. Clamping devices are required during lens processing.

[0003] The clamping devices used in the prior art require a certain amount of pressure to be applied to the lens during use, which may cause scratches on the lens surface and thus affect the final processing quality of the lens. In addition, the clamping devices used in the prior art inevitably accumulate dust or impurity particles on the surface, which may cause a certain degree of wear on the lens surface during use. Utility Model Content

[0004] The purpose of this invention is to provide a clamping device that avoids lens wear, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for preventing lens wear, comprising a mounting frame and a lens, wherein a first fixing frame is fixedly mounted inside the mounting frame, a second fixing frame is provided on the first fixing frame, and two sets of symmetrically distributed positioning seats are provided on the second fixing frame, each of the two sets of positioning seats having a mounting ring rotatably mounted on it, and a first toothed ring sleeved on the mounting ring; multiple sets of annularly distributed adjusting frames are provided inside the positioning seats, each of the multiple sets of adjusting frames being rotatably connected to the positioning seats via adjusting shafts, and each of the multiple sets of adjusting shafts having a third gear sleeved on it, the multiple sets of third gears being engaged with the first toothed ring. The ring meshing connection includes multiple sets of adjusting frames, each with a rubber block fixedly installed. Both sets of positioning seats are rotatably connected to a second fixing frame via a first mounting shaft. The second fixing frame is rotatably connected to the first fixing frame via a second mounting shaft. A fixing rod is fixedly installed on the mounting frame. A first adjusting rod is slidably installed inside the fixing rod. A second adjusting rod is slidably installed inside the first adjusting rod. A fixing ring is fixedly installed at the top of the second adjusting rod. Multiple sets of annularly distributed nozzles are provided on the fixing ring, which are distributed correspondingly to the positioning seats. A rotating ring is rotatably installed on the mounting frame, and the rotating ring is correspondingly arranged to the fixing ring.

[0006] As a further preferred embodiment of this technical solution, a first gear is sleeved on the first mounting shaft, a first rack is slidably installed in the second fixing frame, the first rack is meshed with the first gear, and a first limit switch is distributed at both ends of the first rack.

[0007] As a further preferred embodiment of this technical solution, a second gear is sleeved on the second mounting shaft, a second rack is slidably installed in the first fixing frame, the second rack is meshed with the second gear, and two sets of second limit switches are respectively located at both ends of the second rack.

[0008] As a further preferred embodiment of this technical solution, the mounting frame is provided with two sets of symmetrically distributed rubber plates. The rubber plates are rotatably connected to the mounting frame via mounting rods. Two sets of symmetrically distributed torsion springs are sleeved on the mounting rods, and the two ends of the torsion springs are fixedly connected to the rubber plates and the mounting frame, respectively.

[0009] As a further preferred embodiment of this technical solution, a threaded rod is rotatably installed inside the fixed rod, and a threaded tube is rotatably installed inside the first adjusting rod. The threaded rod has two sets of symmetrically distributed keyways, and the threaded tube has two sets of symmetrically distributed key blocks. The key blocks are distributed correspondingly to the keyways. The threaded tube is slidably sleeved with the threaded rod through the key blocks. The upper end of the threaded rod passes through the first adjusting rod and is threadedly connected to the first adjusting rod. The upper end of the threaded tube passes through the second adjusting rod and is threadedly connected to the second adjusting rod.

[0010] As a further preferred embodiment of this technical solution, a brush is fixedly installed inside the rotating ring, a second toothed ring is sleeved on the rotating ring, a third rack is slidably installed inside the mounting frame, the third rack meshes with the second toothed ring, a slide rod is fixedly installed inside the mounting frame, two sets of symmetrically distributed springs are sleeved on the slide rod, and a crank is rotatably installed on the mounting frame.

[0011] As a further preferred embodiment of this technical solution, the third rack is slidably connected to the slider and the slide rod through the slider, the two ends of the two sets of springs are respectively fixedly connected to the slider and the mounting bracket, a connecting rod is rotatably mounted on the slider, and the end of the connecting rod away from the slider is rotatably connected to the crank through a rotating shaft.

[0012] This utility model provides a clamping device to avoid lens wear, which has the following beneficial effects:

[0013] (1) This utility model achieves synchronous rotation adjustment of multiple sets of adjustment frames and rubber blocks on the adjustment frames by using the mounting ring rotatably installed in the positioning seat in conjunction with the first toothed ring and the third gear. This allows multiple sets of rubber blocks to be quickly adjusted to form a circle with different diameters to accommodate different types of lenses. The lens is fixed in the middle of multiple sets of rubber blocks, completing the side clamping of the lens and avoiding wear on the lens surface during the lens clamping process. The rubber blocks are made of rubber with a certain degree of elasticity. The degree of rotation of multiple sets of adjustment frames is adjusted by the staff. During the process of adjusting the multiple sets of rubber blocks to fit the edge of the lens, excessive clamping force is avoided to prevent damage to the lens.

[0014] (2) This utility model connects the nozzle to an external ion fan. The ion fan generates positive and negative ions based on corona ionization technology and electrostatic neutralization mechanism. The airflow containing positive and negative ions passes through the nozzle onto multiple rubber blocks, where it neutralizes the surface charge of the statically charged rubber blocks. If the rubber block has a negative static charge, it will absorb positive ions from the airflow; conversely, if the surface of the rubber block has a positive static charge, it will absorb negative ions from the airflow, thus neutralizing the static charge on the surface of the rubber block. This achieves the effect of dust removal from the surface of the rubber block, preventing impurities or particles from adhering to the surface of the rubber block and causing wear to the lens during subsequent lens clamping. The included brush cleans the nozzles on the used fixing ring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the structural separation of the mounting bracket and the first fixing bracket of this utility model;

[0017] Figure 3 This is a schematic diagram showing the structural separation of the second fixing frame and the positioning seat of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A;

[0019] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point -B;

[0020] Figure 6 This is a schematic diagram showing the structural separation of the mounting bracket and the fixing ring of this utility model;

[0021] Figure 7 For the present utility model Figure 6 Enlarged view of the structure at point C;

[0022] In the diagram: 1. Mounting bracket; 2. Lens; 3. Positioning seat; 4. First fixing bracket; 5. Second fixing bracket; 6. Mounting ring; 7. Adjusting bracket; 8. Adjusting shaft; 9. Third gear; 10. Rubber block; 11. First mounting shaft; 12. First gear; 13. First rack; 14. First limit switch; 15. Second mounting shaft; 16. Second gear; 17. Second rack; 18. Second limit switch; 19. Rubber plate; 20. Mounting rod; 21. Torsion spring; 22. Fixing ring; 23. Nozzle; 24. Fixing rod; 25. First adjusting rod; 26. Second adjusting rod; 27. Threaded rod; 28. Keyway; 29. ​​Threaded tube; 30. Key block; 31. Rotary ring; 32. Sweeping brush; 33. Second gear ring; 34. Third rack; 35. Slider; 36. Sliding rod; 37. Spring; 38. Connecting rod; 39. Crank; 40. First gear ring. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figures 1-5As shown, in this embodiment, a clamping device to prevent lens wear includes a mounting frame 1 and a lens 2. A first fixing frame 4 is fixedly installed inside the mounting frame 1. A second fixing frame 5 is provided on the first fixing frame 4. Two sets of symmetrically distributed positioning seats 3 are provided on the second fixing frame 5. A mounting ring 6 is rotatably installed on each of the two sets of positioning seats 3. A first toothed ring 40 is sleeved on the mounting ring 6. Multiple sets of annularly distributed adjusting frames 7 are provided inside the positioning seats 3. The multiple sets of adjusting frames 7 are rotatably connected to the positioning seats 3 through adjusting shafts 8. A third gear 9 is sleeved on each of the multiple sets of adjusting shafts 8. The multiple sets of third gears 9 are meshed with the first toothed ring 40. A rubber block 10 is fixedly installed on each of the multiple sets of adjusting frames 7. The two sets of positioning seats 3 are rotatably connected to the first mounting frame 40 through adjusting shafts 8. Shaft 11 is rotatably connected to the second fixed frame 5. The second fixed frame 5 is rotatably connected to the first fixed frame 4 via the second mounting shaft 15. A fixed rod 24 is fixedly mounted on the mounting frame 1. A first adjusting rod 25 is slidably mounted inside the fixed rod 24. A second adjusting rod 26 is slidably mounted inside the first adjusting rod 25. A fixed ring 22 is fixedly mounted at the top of the second adjusting rod 26. The fixed ring 22 is provided with multiple sets of annularly distributed nozzles 23. The fixed ring 22 is correspondingly distributed with the positioning seat 3. A rotating ring 31 is rotatably mounted on the mounting frame 1. The rotating ring 31 is correspondingly set with the fixed ring 22. A first gear 12 is sleeved on the first mounting shaft 11. A first rack 13 is slidably mounted inside the second fixed frame 5. The first rack 13 and the first gear 12 are connected. 2. Engaging connection: First limit switches 14 are distributed at both ends of the first rack 13; a second gear 16 is sleeved on the second mounting shaft 15; a second rack 17 is slidably installed inside the first fixed frame 4, and the second rack 17 is engaged with the second gear 16; two sets of second limit switches 18 are respectively located at both ends of the second rack 17; two sets of symmetrically distributed rubber plates 19 are provided on the mounting frame 1, and the rubber plates 19 are rotatably connected to the mounting frame 1 through the mounting rod 20; two sets of symmetrically distributed torsion springs 21 are sleeved on the mounting rod 20, and the two ends of the torsion springs 21 are fixedly connected to the rubber plates 19 and the mounting frame 1 respectively; during the rotation of the adjusting shaft 8 driven by the motor in the positioning seat 3, the third gear 9 and the first gear ring 40 cooperate to achieve the desired effect. The synchronous adjustment of multiple sets of adjustment frames 7 involves their simultaneous rotation, which drives multiple sets of rubber blocks 10 to rotate until the rubber blocks 10 are in contact with the edge of the lens 2, thus completing the clamping of the lens 2. When the cylinder in the second fixing frame 5 drives the first rack 13 to slide, it works in conjunction with the first gear 12 and the first mounting shaft 11 to flip the positioning seat 3. This allows for the processing of both sides of the lens 2 after clamping. The cylinder in the first fixing frame 4 drives the second rack 17 to slide, which, in conjunction with the second gear 16, allows the second mounting shaft 15 to rotate the second fixing frame 5 and the two sets of positioning seats 3 on the mounting frame 1, facilitating the cleaning of the rubber blocks 10 when the positioning seats 3 are in use.During the sliding process of the first rack 13 and the second rack 17, the first limit switch 14 and the second limit switch 18 installed in the second fixed frame 5 and the first fixed frame 4 respectively control the travel of the first rack 13 and the second rack 17.

[0025] like Figure 6 and Figure 7 As shown, a threaded rod 27 is rotatably installed inside the fixed rod 24, and a threaded tube 29 is rotatably installed inside the first adjusting rod 25. The threaded rod 27 has two sets of symmetrically distributed keyways 28, and the threaded tube 29 has two sets of symmetrically distributed key blocks 30, which correspond to the keyways 28. The threaded tube 29 is slidably connected to the threaded rod 27 via the key blocks 30. The upper end of the threaded rod 27 passes through the first adjusting rod 25 and is threadedly connected to it. The upper end of the threaded tube 29 passes through the second adjusting rod 26 and is threadedly connected to it. A brush 32 is fixedly installed inside the rotating ring 31. A second toothed ring 33 is fitted onto the upper part of the mounting bracket 1. A third toothed rack 34 is slidably mounted inside the mounting bracket 1, and the third toothed rack 34 is meshed with the second toothed ring 33. A slide rod 36 is fixedly mounted inside the mounting bracket 1, and two sets of symmetrically distributed springs 37 are fitted onto the slide rod 36. A crank 39 is rotatably mounted on the mounting bracket 1. The third toothed rack 34 is slidably fitted onto the slide rod 36 via a slider 35. The two ends of the two sets of springs 37 are fixedly connected to the slider 35 and the mounting bracket 1, respectively. A connecting rod 38 is rotatably mounted on the slider 35, and the end of the connecting rod 38 away from the slider 35 is rotatably connected to the crank 39 via a rotating shaft. The positioning seat 3 and multiple... After the rubber blocks 10 align with the fixing ring 22, the motor in the mounting rod 20 starts, driving the threaded rod 27 to rotate. This, combined with the key block 30 and keyway 28, causes the threaded tube 29 to rotate accordingly. Under the limiting action of the mounting rod 20 and the first adjusting rod 25, the first adjusting rod 25 and the second adjusting rod 26 slide synchronously within the mounting rod 20, causing the fixing ring 22 to rise until it passes through the positioning seat 3 and is positioned above it. Then, the motor in the mounting rod 20 drives the threaded rod 27 to rotate in the opposite direction, causing the fixing ring 22 to move downwards. During the downward movement of the fixing ring 22, the ion fan starts, spraying ions through the nozzle 23 onto multiple groups of... An airflow containing positive and negative ions is sprayed onto the rubber block 10 to remove dust. Simultaneously, after the dust removal work of the rubber block 10 is completed by the fixing ring 22 and the nozzle 23, it moves down to correspond with the sweeping brush 32. The motor in the mounting frame 1 drives the crank 39 to rotate, which, together with the connecting rod 38, causes the slider 35 to drive the third rack 34 to make linear reciprocating motion on the slide rod 36 and the mounting frame 1. During the sliding process of the third rack 34, it cooperates with the second toothed ring 33 to drive the sweeping brush 32 to reciprocate on the mounting frame 1. The sweeping brush 32, which is in contact with multiple sets of nozzles, completes the cleaning of the nozzles during the reciprocating rotation.

[0026] This utility model provides a clamping device to prevent lens wear. The specific working principle is as follows: During the rotation of the adjusting shaft 8 driven by the motor in the positioning seat 3, the third gear 9 and the first gear ring 40 cooperate to achieve synchronous adjustment of multiple sets of adjusting frames 7. The synchronous rotation of the multiple sets of adjusting frames 7 drives the rotation of multiple sets of rubber blocks 10 until the rubber blocks 10 are in contact with the edge of the lens 2, completing the clamping of the lens 2. When the cylinder in the second fixing frame 5 drives the first rack 13 to slide, it cooperates with the first gear 12 and the first mounting shaft 11 to achieve the flipping of the positioning seat 3, thus achieving the desired effect after the lens 2 is clamped. For the processing of both sides of lens 2, the cylinder in the first fixing frame 4 drives the second rack 17 to slide, which, in conjunction with the second gear 16, enables the second mounting shaft 15 to drive the second fixing frame 5 and the two sets of positioning seats 3 to switch positions on the mounting frame 1. This facilitates the cleaning of the rubber blocks 10 by the positioning seats 3 when they are ready for use. During the sliding process of the first rack 13 and the second rack 17, the first limit switch 14 and the second limit switch 18 set in the second fixing frame 5 and the first fixing frame 4 control the stroke of the first rack 13 and the second rack 17. The positioning seats 3 and the multiple sets of rubber blocks 10 are ready for use. After the fixed ring 22 is aligned with the mounting rod 20, the motor in the mounting rod 20 starts and drives the threaded rod 27 to rotate. This, combined with the key block 30 and keyway 28, causes the threaded tube 29 to rotate accordingly. Under the limiting action of the mounting rod 20 and the first adjusting rod 25, the first adjusting rod 25 and the second adjusting rod 26 slide synchronously within the mounting rod 20, causing the fixed ring 22 to rise until it passes through the positioning seat 3 and is positioned above it. Then, the motor in the mounting rod 20 drives the threaded rod 27 to rotate in the opposite direction, causing the fixed ring 22 to move downwards. During the downward movement of the fixed ring 22, the ion fan starts and sprays ionized air through the nozzle 23 onto multiple sets of rubber... An airflow containing positive and negative ions is sprayed onto the rubber block 10 to remove dust. Simultaneously, after the dust removal work of the rubber block 10 is completed by the fixing ring 22 and the nozzle 23, it moves down to correspond with the sweeping brush 32. The motor in the mounting frame 1 drives the crank 39 to rotate, which, together with the connecting rod 38, causes the slider 35 to drive the third rack 34 to make linear reciprocating motion on the slide rod 36 and the mounting frame 1. During the sliding process of the third rack 34, it cooperates with the second toothed ring 33 to drive the sweeping brush 32 to reciprocate on the mounting frame 1. The sweeping brush 32, which is in contact with multiple sets of nozzles, completes the cleaning of the nozzles during the reciprocating rotation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for avoiding lens abrasion, comprising a mounting frame (1) and a lens (2), characterized in that: The mounting frame (1) is internally fixedly provided with a first fixing frame (4), the first fixing frame (4) is provided with a second fixing frame (5), the second fixing frame (5) is provided with two groups of symmetrical positioning seats (3), the two groups of positioning seats (3) are rotatably provided with mounting rings (6), the mounting rings (6) are sleeved with first tooth rings (40), the positioning seats (3) are internally provided with a plurality of groups of annular adjustment frames (7), the plurality of groups of adjustment frames (7) are rotatably connected with the positioning seat (3) through adjustment shafts (8), the plurality of groups of adjustment shafts (8) are sleeved with third gears (9), the plurality of groups of third gears (9) are meshedly connected with the first tooth ring (40), the plurality of groups of adjustment frames (7) are fixedly provided with rubber blocks (10), the two groups of positioning seats (3) are rotatably connected with the second fixing frame (5) through first mounting shafts (11), the second fixing frame (5) is rotatably connected with the first fixing frame (4) through a second mounting shaft (15), the mounting frame (1) is fixedly provided with a fixed rod (24), the fixed rod (24) is slidably provided with a first adjusting rod (25), the first adjusting rod (25) is slidably provided with a second adjusting rod (26), the second adjusting rod (26) is fixedly provided with a fixed ring (22) at the top end, the fixed ring (22) is provided with a plurality of groups of annular nozzles (23), the fixed ring (22) is correspondingly distributed with the positioning seat (3), the mounting frame (1) is rotatably provided with a rotating ring (31), and the rotating ring (31) is correspondingly provided with the fixed ring (22).

2. A holding device for avoiding lens damage according to claim 1, characterized in that: The first mounting shaft (11) is sleeved with a first gear (12), the second fixing frame (5) is slidably provided with a first rack (13), and the first rack (13) is meshedly connected with the first gear (12). The first rack (13) is provided with a first travel switch (14) at both ends.

3. The holding device of claim 1, wherein: The second mounting shaft (15) is sleeved with a second gear (16), the first fixing frame (4) is slidably provided with a second rack (17), and the second rack (17) is meshedly connected with the second gear (16). The second rack (17) is respectively provided with two groups of second travel switches (18) at both ends.

4. The holding device of claim 1, wherein: The mounting frame (1) is provided with two groups of symmetrical rubber plates (19), the rubber plates (19) are rotatably connected with the mounting frame (1) through mounting rods (20), the mounting rods (20) are sleeved with two groups of symmetrical torsional springs (21), and the two ends of the torsional springs (21) are respectively fixedly connected with the rubber plates (19) and the mounting frame (1).

5. The holding device of claim 1, wherein: The fixed rod (24) is rotationally installed with a threaded rod (27), the first adjusting rod (25) is rotationally installed with a threaded pipe (29), two groups of symmetrically distributed key grooves (28) are formed in the threaded rod (27), two groups of symmetrically distributed key blocks (30) are arranged in the threaded pipe (29), the key blocks (30) are correspondingly distributed with the key grooves (28), the threaded pipe (29) is slidably sleeved with the threaded rod (27) through the key blocks (30), the upper end of the threaded rod (27) penetrates through the first adjusting rod (25) and is threadedly connected with the first adjusting rod (25), and the upper end of the threaded pipe (29) penetrates through the second adjusting rod (26) and is threadedly connected with the second adjusting rod (26).

6. The holding device of claim 1, wherein: The swivel ring (31) is fixedly installed with a brush (32), the swivel ring (31) is sleeved with a second tooth ring (33), the mounting rack (1) is slidably installed with a third rack (34), the third rack (34) is meshedly connected with the second tooth ring (33), the mounting rack (1) is fixedly installed with a sliding rod (36), the sliding rod (36) is sleeved with two groups of symmetrically distributed springs (37), and the mounting rack (1) is rotationally installed with a crank (39).

7. A lens holding device according to claim 6, wherein: The third rack (34) is slidably sleeved with the sliding rod (36) through a sliding block (35), the two ends of the two groups of springs (37) are fixedly connected with the sliding block (35) and the mounting rack (1) respectively, the sliding block (35) is rotationally installed with a connecting rod (38), and the end, away from the sliding block (35), of the connecting rod (38) is rotationally connected with the crank (39) through a rotating shaft.

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