A lens coating device for optical lens processing

Abstract

The application discloses a lens coating device for optical lens processing, and relates to the technical field of optical lens processing, which comprises a box body, a coating device is arranged in the box body, a height adjusting assembly matched with the coating device is arranged on the upper surface of the box body, supporting columns are fixedly connected to the inner wall of the box body, a sample holder is fixedly connected to the top end of the supporting columns, and a replaceable clamp is arranged on the outer surface of the sample holder. The replaceable clamp comprises a supporting seat, the supporting seat is fixedly installed on the lower surface of the box body, a pneumatic cylinder is fixedly connected to the inner wall of the supporting seat, the replaceable clamp can be flexibly replaced according to the shape of the lens, the lens can be stably fixed during coating, the height adjusting assembly can be used for flexibly adjusting the distance between the coating device and the lens, the coating requirement of different types of film layers can be met, and the application range of the device is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of optical lens processing technology, and in particular to a lens coating apparatus for optical lens processing. Background Technology

[0002] Optical glass is made by mixing high-purity oxides of silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium and barium according to a specific formula, melting them at high temperature in a platinum crucible, stirring them evenly with ultrasound to remove air bubbles, and then slowly cooling them for a long time to prevent internal stress from forming in the glass block. After cooling, the glass block must be measured by optical instruments to check whether its purity, transparency, uniformity, refractive index and dispersion rate meet the specifications. Qualified glass blocks are then heated and forged to form optical lens blanks. Most optical lenses require coating during processing. However, existing lens coating equipment for optical lens processing generally uses adsorption-type positioning of lenses during use. The adsorption force is difficult to control precisely, which can easily cause lens damage and cannot guarantee the stable clamping of the lens during the coating process. Utility Model Content

[0003] The purpose of this application is to provide a lens coating apparatus for optical lens processing, so as to improve the problems of adsorption instability and limited spacing in existing lens coating apparatuses.

[0004] The lens coating apparatus for optical lens processing provided in this application adopts the following technical solution: An optical lens coating apparatus includes a housing. A coating device is located inside the housing. A height adjustment component for use with the coating device is located on the upper surface of the housing. A support column is fixedly connected to the inner wall of the housing. A platform is fixedly connected to the top of the support column. A replaceable clamp is located on the outer surface of the platform. The replaceable clamp includes a support base, which is fixedly installed on the lower surface of the housing. A cylinder is fixedly connected to the inner wall of the support base. The output end of the cylinder passes through the lower surface of the housing and is fixedly connected to a connecting ring. A hinge is symmetrically fixedly connected to the upper surface of the connecting ring. A connecting rod is hinged to the outer surface of the hinge via a pivot. A sliding groove is symmetrically formed inside the platform. A moving block is slidably connected to the inner wall of the sliding groove. The connecting rod is hinged to the outer surface of the moving block via a pivot. A vertical rod is fixedly connected to the upper surface of the moving block. A clamping plate is movably connected to one side of the vertical rod.

[0005] By adopting the above technical solution, the replaceable clamp uses a cylinder to drive the connecting ring to rise and fall, and drives the connecting rod through the hinge seat to make the moving block slide smoothly along the slide groove. Then, the upright rod drives the clamping plate to open and close synchronously, realizing the rapid clamping and release of the lens. At the same time, the clamping plate can be flexibly replaced to adapt to optical lenses of different shapes and specifications. This solves the problems of fragile lenses and unstable clamping in traditional adsorption positioning, ensures the stability of the lens during the coating process, and improves the coating quality of the lens.

[0006] Optionally, the height adjustment assembly includes a vertical shell, which is fixedly installed on the upper surface of the housing. A servo motor is fixedly installed on the upper surface of the vertical shell, and the output end of the servo motor passes through the vertical shell and is fixedly connected to a lead screw. The bottom end of the lead screw is rotatably connected to the inner wall of the vertical shell. A slider is threaded onto the outer surface of the lead screw. A connecting plate is fixedly connected to one side of the slider, and a round rod is fixedly connected to the lower surface of the connecting plate. The bottom end of the round rod passes through the upper surface of the housing and is fixedly connected to the upper surface of the coating device.

[0007] By adopting the above technical solution, the height adjustment component uses a servo motor to drive the lead screw to rotate precisely, which drives the slider to rise and fall stably along the inner wall of the vertical shell. Then, through the connecting plate and the round rod, the height of the coating device is adjusted synchronously, realizing precise and controllable adjustment of the distance between the coating device and the lens. Compared with the fixed distance design, it can adapt to the coating process requirements of different types of films such as anti-reflective films and wear-resistant films, significantly broadening the application range of the device and improving the versatility and practicality of the equipment.

[0008] Optionally, a door is hinged to one side of the box body, and a mounting groove is provided on one side of the door. A viewing window is fixedly installed on the inner wall of the mounting groove.

[0009] By adopting the above technical solution, the cabinet door can achieve a sealed closure of the cabinet, providing a closed environment for the coating process and preventing outside air from entering and affecting the vacuum level and film quality. At the same time, the viewing window in the mounting slot allows operators to observe the coating status of the lenses inside the cabinet in real time, promptly detect and handle abnormalities in the coating process, and improve the convenience and safety of operation.

[0010] Optionally, a rubber anti-slip pad is fixedly connected to one side of the clamp.

[0011] By adopting the above technical solution, the rubber anti-slip pad on one side of the clamp can increase the friction between the clamp and the lens surface, further improve the stability of lens clamping, prevent the lens from shifting due to vibration during the coating process, and at the same time, the rubber material has a flexible buffering effect, avoiding surface scratches, edge chipping and other damage caused by hard contact between the clamp and the lens, thus ensuring the lens yield.

[0012] Optionally, a plug rod is fixedly connected to the upper surface of the clamping plate, the plug rod is magnetically inserted into the top of the upright, and a positioning pin is magnetically inserted between the plug rod and the upright.

[0013] By adopting the above technical solution, the insertion rod is magnetically inserted into the top of the upright, and with the secondary fixation of the positioning pin, the clamping plate can be quickly disassembled and securely connected. The magnetic structure simplifies the clamping plate replacement operation, while the positioning pin ensures the structural stability of the clamping plate during the clamping process, taking into account both replaceability and reliability, and adapting to the rapid switching processing needs of different lens specifications.

[0014] Optionally, the cross-sectional shape of the movable block is cross-shaped.

[0015] By adopting the above technical solution, the cross-shaped moving block and the slide groove form a precise sliding fit, which can not only limit the rotation of the moving block and ensure that it slides smoothly in a straight line along the slide groove, avoiding deviation when the clamping plate is holding it, but also enhance the load-bearing capacity of the moving block when sliding, and improve the stability and service life of the overall structure of the replaceable fixture.

[0016] Optionally, the connecting ring is slidably sleeved on the outer surface of the support column.

[0017] By adopting the above technical solution, the connecting ring is slidably sleeved on the outer surface of the support column. The support column provides guidance and support for the lifting and lowering movement of the connecting ring, avoiding shaking or displacement of the connecting ring under the drive of the cylinder, ensuring the stability of the linkage transmission, and thus ensuring the accuracy of the clamping plate in holding the lens.

[0018] Optionally, the outer surface of the slider is slidably connected to the inner wall of the vertical shell.

[0019] By adopting the above technical solution, the slider is slidably connected to the inner wall of the vertical shell. The vertical shell provides precise guidance for the slider's lifting and lowering, preventing the slider from deflecting as the lead screw rotates. This ensures that the coating unit maintains stable movement during height adjustment, guarantees the accuracy of the distance adjustment between the coating unit and the lens, and improves the uniformity of the film thickness.

[0020] In summary, this application includes at least one of the following beneficial technical effects: This invention features a replaceable clamp, allowing for flexible replacement of the appropriate clamp plate according to the shape of the lens, thus achieving stable fixation of the lens during coating. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the explosive structure of the replaceable clamp of this utility model.

[0023] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the height adjustment component of this utility model.

[0025] In the diagram, 1. Box body; 2. Replaceable clamp; 21. Connecting rod; 22. Connecting ring; 23. Support base; 24. Cylinder; 25. Hinge seat; 26. Moving block; 27. Rubber anti-slip pad; 28. Insert rod; 29. ​​Clamping plate; 201. Upright pole; 202. Positioning pin; 203. Slide groove; 3. Height adjustment assembly; 31. Round rod; 32. Connecting plate; 33. Lead screw; 34. Servo motor; 35. Vertical shell; 36. Slider; 4. Box door; 5. Viewing window; 6. Mounting slot; 7. Support column; 8. Platform; 9. Coating device. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0027] A lens coating apparatus for optical lens processing, as described above. Figure 1 and Figure 2 and Figure 3The system includes a housing 1, which serves as the foundation for the entire device. Housing 1 provides a stable installation space for all internal functional components, preventing external interference from affecting the coating accuracy and ensuring the overall structural stability. Inside housing 1 is a coating unit 9. The coating unit 9 works by heating the target material in a vacuum environment with an electron gun, causing it to evaporate into gaseous atoms or molecules. These gaseous particles are then uniformly deposited onto the surface of a fixed lens to form a functional film. This is a conventional technique and will not be elaborated upon further. The inner wall of housing 1 is fixedly connected to a support column 7 for supporting the stage 8. The support column 7 has a strong rigid structure, effectively preventing the stage 8 from shaking during rotation or clamping, ensuring the flatness of the lens placement. The top of the support column 7 is fixedly connected to a mounting bracket for placing the lens. The stage 8 not only provides a flat platform for placing lenses, but also provides a mounting base for the replaceable clamp 2, reducing tilting deviations during lens placement. The outer surface of the stage 8 is equipped with the replaceable clamp 2, which includes a support base 23 fixedly mounted on the lower surface of the housing 1. The support base 23 provides a stable mounting carrier for the cylinder 24, ensuring that the cylinder 24 does not shift during operation. The inner wall of the support base 23 is fixedly connected to the cylinder 24, which provides clamping power. The cylinder 24 enables automated control of the clamping action, providing more stable force and higher efficiency compared to manual clamping. The output end of the cylinder 24 penetrates the lower surface of the housing 1 and is fixedly connected to a connecting ring 22 for linkage with the hinge 25. The connecting ring 22 can drive multiple hinges 25 to move synchronously, ensuring the clamp 2... 9. The opening and closing are consistent. The upper surface of the connecting ring 22 is symmetrically fixedly connected with a hinge seat 25 for providing a hinge fulcrum. The hinge seat 25 allows the connecting rod 21 to rotate flexibly, realizing stable power transmission. The hinge seat 25 is hinged to the connecting rod 21 for changing the direction of power through a rotating shaft. The connecting rod 21 can convert the linear motion of the cylinder 24 into the horizontal sliding of the moving block 26. The platform 8 is symmetrically provided with guide grooves 203 inside. The grooves 203 limit the movement trajectory of the moving block 26 and prevent it from deviating when sliding. The inner wall of the grooves 203 is slidably connected with a moving block 26 for driving the upright 201 to move. The moving block 26 can drive the upright 201 to move synchronously, thereby realizing the clamping and releasing of the clamping plate 29. The upper surface of the moving block 26 is fixedly connected with a support for the clamping plate 29. The upright post 201 is designed to accommodate lenses of different thicknesses, providing a stable mounting base for the clamping plate 29. A clamping plate 29 for directly holding the lens is movably connected to one side of the upright post 201. The clamping plate 29 is replaceable to accommodate optical lenses of different shapes and sizes. A rubber anti-slip pad 27 is fixedly connected to one side of the clamping plate 29. The rubber anti-slip pad 27 increases friction with the lens to improve clamping stability and avoids scratching the lens surface through hard contact due to its flexible material. A plug rod 28 is fixedly connected to the upper surface of the clamping plate 29. The plug rod 28 is magnetically inserted into the top of the upright post 201, and a positioning pin 202 is magnetically inserted between the plug rod 28 and the upright post 201. The plug rod 28, in conjunction with the positioning pin 202, allows for quick assembly and disassembly and secure fixation of the clamping plate 29.Balancing ease of replacement with reliable clamping, the moving block 26 has a cross-shaped cross section. This cross-shaped structure precisely matches the slide groove 203, limiting the rotation of the moving block 26 while enhancing its load-bearing capacity. The connecting ring 22 is slidably sleeved on the outer surface of the support column 7. The support column 7 provides guidance for the lifting and lowering of the connecting ring 22, preventing it from wobbling or shifting under the drive of the cylinder 24 and ensuring transmission stability.

[0028] Reference Figure 4 The upper surface of the housing 1 is equipped with a height adjustment component 3 for use with the coating device 9. This height adjustment component 3 includes a vertical shell 35 fixedly mounted on the upper surface of the housing 1. The vertical shell 35 provides sealed protection and installation space for internal components such as the lead screw 33 and slider 36, preventing dust and impurities from affecting transmission accuracy. A servo motor 34 for providing precise power is fixedly mounted on the upper surface of the vertical shell 35. The servo motor 34 can precisely control the speed and direction, providing a stable power source for height adjustment and ensuring adjustment accuracy. The output end of the servo motor 34 passes through the vertical shell 35 and is fixedly connected to the lead screw 33 for converting the motion form. The lead screw 33 converts rotational motion into linear motion of the slider 36. Its threaded structure allows for fine-tuning of the height. The bottom end of the lead screw 33 is rotatably connected to the inner wall of the vertical shell 35. The outer surface of the lead screw 33 is threaded with a slider 36 for driving the connecting plate 32 to rise and fall. The slider 36 can drive the connecting plate 32 to move synchronously, thereby driving the coating device 9 to adjust its height. A connecting plate 32 for connecting the transmission is fixedly connected to one side of the slider 36. The connecting plate 32 realizes the connection between the slider 36 and the transmission. The stable connection between the connecting plate 32 and the round rod 31 ensures stable power transmission. The lower surface of the connecting plate 32 is fixedly connected to the round rod 31 for transmitting lifting motion. The round rod 31 accurately transmits the movement of the connecting plate 32 to the coating unit 9, ensuring smooth lifting and lowering of the coating unit 9. The bottom end of the round rod 31 penetrates the upper surface of the housing 1 and is fixedly connected to the upper surface of the coating unit 9. The outer surface of the slider 36 is slidably connected to the inner wall of the vertical shell 35. The vertical shell 35 restricts the slider 36 from rotating with the lead screw 33, providing precise guidance for the slider 36 and ensuring the height adjustment of the coating unit 9. For precision, a door 4 is hinged to one side of the housing 1 to seal the housing 1. The door 4 can achieve a sealed closure of the housing 1, providing a sealed environment for the coating process and preventing outside air from entering and affecting the vacuum level. A mounting groove 6 is provided on one side of the door 4 for installing the viewing window 5. The mounting groove 6 provides a precise installation position for the viewing window 5, ensuring that the viewing window 5 is firmly installed. The viewing window 5 is fixedly installed on the inner wall of the mounting groove 6 for easy observation. The viewing window 5 allows the operator to observe the coating status of the lens inside the housing 1 in real time and promptly detect and handle abnormalities.

[0029] The implementation principle of this application embodiment is as follows: First, according to the shape and specifications of the lens to be coated, the appropriate clamping plate 29 is replaced by the cooperation of the insertion rod 28 and the positioning pin 202. The insertion rod 28 on the clamping plate 29 is magnetically inserted into the top of the upright rod 201. Then, the positioning pin 202 is magnetically inserted into the corresponding hole of the insertion rod 28 and the upright rod 201, so as to realize the quick fixing and replacement of the clamping plate 29 and adapt to the processing needs of lenses of different sizes and curvatures.

[0030] Then open the hinged door 4 on one side of the housing 1, place the lens in the preset position of the stage 8, close the door 4 to make the housing 1 form a sealed space, start the cylinder 24 in the replaceable clamp 2. The cylinder 24 is fixedly installed on the inner wall of the support seat 23 on the lower surface of the housing 1, and its output end pushes the connecting ring 22 to rise vertically along the support column 7.

[0031] When the connecting ring 22 rises, the hinge seat 25, which is symmetrically fixed on its surface, synchronously drives the connecting rod 21 to rotate around the axis. The end of the connecting rod 21 away from the hinge seat 25 pulls the moving block 26 to slide in opposite directions along the slide groove 203 inside the platform 8. Because the cross-sectional shape of the moving block 26 is cross-shaped, it forms a precise sliding fit with the slide groove 203, which can prevent the moving block 26 from rotating or deviating, and ensure transmission stability.

[0032] The moving block 26 drives the top pole 201 to move synchronously, and the clamping plate 29 on one side of the pole 201 moves closer to the lens until the rubber anti-slip pad 27 on one side of the clamping plate 29 is in close contact with the lens surface, and the cylinder 24 is closed to complete the stable clamping of the lens.

[0033] The rubber anti-slip pad 27 can increase the friction with the lens to prevent slippage, and can also avoid scratching the lens surface through flexible contact.

[0034] Depending on the type of film to be prepared, the servo motor 34 in the height adjustment assembly 3 on the upper surface of the housing 1 is started, and the output end of the servo motor 34 drives the lead screw 33 to rotate on the inner wall of the vertical shell 35.

[0035] When the lead screw 33 rotates, the slider 36, which is threaded on its outer surface, slides vertically along the inner wall of the vertical shell 35. The slider 36 drives the connecting plate 32, which is fixed on one side, to rise and fall synchronously. The connecting plate 32 drives the coating device 9 to make vertical height adjustments through the round rod 31 at the bottom until the coating device 9 and the lens on the stage 8 reach the optimal distance to match the coating layer. Then, the servo motor 34 is turned off to complete the height positioning.

[0036] This adjustment method enables precise fine-tuning of the coating unit 9 to meet the different requirements of target particle deposition efficiency for different film layers.

[0037] After the lens is fixed and the height of the coating machine 9 is adjusted, the coating machine 9 is started to perform the coating operation. The housing 1 forms a sealed coating environment through the sealing closure of the door 4, preventing outside air from entering and affecting the quality of the coating layer.

[0038] Operators can observe the coating status of the lenses inside the cabinet 1 in real time through the viewing window 5 in the mounting slot 6 on the cabinet door 4, promptly detect and handle any abnormalities in the coating process, and ensure the smooth progress of the coating operation.

[0039] After the coating is completed, first turn off the coating machine 9, then start the cylinder 24 in reverse. The output end of the cylinder 24 pulls the connecting ring 22 down, and through the connecting rod 21, drives the moving block 26 to slide in the opposite direction along the slide groove 203. The clamping plate 29 then moves away from the lens and is released from clamping.

[0040] Open door 4 and take out the coated lens. If further processing is required, repeat the above clamping, adjustment and coating process.

[0041] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lens coating apparatus for optical lens processing, comprising a housing (1), characterized in that: The box (1) is equipped with a coating device (9) inside. The upper surface of the box (1) is equipped with a height adjustment component (3) for use with the coating device (9). The inner wall of the box (1) is fixedly connected with a support column (7). The top of the support column (7) is fixedly connected with a platform (8). The outer surface of the platform (8) is equipped with a replaceable clamp (2). The replaceable clamp (2) includes a support base (23), which is fixedly installed on the lower surface of the box (1). A cylinder (24) is fixedly connected to the inner wall of the support base (23). The output end of the cylinder (24) passes through the lower surface of the box (1) and is fixedly connected to a connecting ring (22). A hinge seat (25) is symmetrically fixedly connected to the upper surface of the connecting ring (22). A connecting rod (21) is hinged to the outer surface of the hinge seat (25) through a rotating shaft. A sliding groove (203) is symmetrically opened inside the platform (8). A moving block (26) is slidably connected to the inner wall of the sliding groove (203). The connecting rod (21) is hinged to the outer surface of the moving block (26) through a rotating shaft. A vertical rod (201) is fixedly connected to the upper surface of the moving block (26). A clamping plate (29) is movably connected to one side of the vertical rod (201).

2. The lens coating apparatus for optical lens processing as described in claim 1, characterized in that: The height adjustment component (3) includes a vertical shell (35), which is fixedly installed on the upper surface of the housing (1). A servo motor (34) is fixedly installed on the upper surface of the vertical shell (35), and the output end of the servo motor (34) passes through the vertical shell (35) and is fixedly connected to a lead screw (33). The bottom end of the lead screw (33) is rotatably connected to the inner wall of the vertical shell (35). A slider (36) is threaded on the outer surface of the lead screw (33). A connecting plate (32) is fixedly connected to one side of the slider (36), and a round rod (31) is fixedly connected to the lower surface of the connecting plate (32). The bottom end of the round rod (31) passes through the upper surface of the housing (1) and is fixedly connected to the upper surface of the coating device (9).

3. The lens coating apparatus for optical lens processing as described in claim 1, characterized in that: A door (4) is hinged to one side of the box body (1), and an installation groove (6) is provided on one side of the door (4). A viewing window (5) is fixedly installed on the inner wall of the installation groove (6).

4. The lens coating apparatus for optical lens processing as described in claim 1, characterized in that: A rubber anti-slip pad (27) is fixedly connected to one side of the clamp (29).

5. The lens coating apparatus for optical lens processing as described in claim 1, characterized in that: The upper surface of the clamp (29) is fixedly connected with a plug rod (28), the plug rod (28) is magnetically inserted into the top of the upright (201), and a positioning pin (202) is magnetically inserted between the plug rod (28) and the upright (201).

6. The lens coating apparatus for optical lens processing as described in claim 1, characterized in that: The cross-sectional shape of the movable block (26) is cross-shaped.

7. The lens coating apparatus for optical lens processing as described in claim 1, characterized in that: The connecting ring (22) is slidably sleeved on the outer surface of the support column (7).

8. The lens coating apparatus for optical lens processing as described in claim 2, characterized in that: The outer surface of the slider (36) is slidably connected to the inner wall of the vertical shell (35).

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