A kind of milling device for processing aspherical lens
By designing a milling device suitable for clamping, milling, and protective components of aspherical lenses, the problem of not being able to simultaneously and efficiently grind the lens edges and surfaces in existing technologies has been solved, achieving efficient production and debris protection.
Patent Information
- Application Number
- CN202511501942.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2045-10-21
AI Technical Summary
Existing aspherical lens processing equipment cannot efficiently polish both the lens edge and surface simultaneously, requiring equipment replacement and impacting production efficiency.
A milling device comprising a clamping assembly, a milling assembly, and a protective assembly is designed. The clamping assembly uses a double-ended lead screw and a motor system to achieve omnidirectional clamping and rotation of the lens. The milling assembly uses a milling cutter and a grinding rod to grind the edges and surfaces. The protective assembly prevents debris from flying.
It enables all-around grinding of aspherical lenses without changing equipment, improving production efficiency and effectively preventing debris from flying everywhere.
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Figure CN120985475B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of aspherical lens processing technology, specifically to a milling device for aspherical lens processing. Background Technology
[0002] Aspherical lenses have a surface curvature that differs from traditional spherical designs. They reduce optical aberrations by using an aspherical curve in which the radius of curvature gradually changes from the center to the periphery.
[0003] In the processing of aspherical lenses, the edges and corners are often polished to make them smoother. In the prior art, Chinese utility model patent CN220260422U discloses an aspherical lens edge polishing and shaping device, including a base. One end of the top of the base has a first support column. A drive motor is mounted on one side of the first support column via a mounting bracket and screws. The output end of the drive motor is connected to a first clamping plate via a first connecting rod. The other end of the top of the base has a second support column. A second connecting rod is located on one side of the second support column. A second clamping plate is located on one side of the second connecting rod. A ball bearing is located between the second clamping plate and the second connecting rod. An aspherical lens is located between the second clamping plate and the first clamping plate. A polishing block is located on one side of the aspherical lens. This novel device has a structure that drives the aspherical lens to rotate autonomously for polishing, and the position of the polishing components is adjustable, resulting in a better polishing effect and making it suitable for widespread use.
[0004] In the above technology, the lens is clamped by the cooperation of clamping plate No. 1 and clamping plate No. 2, and then polished by polishing block. However, in the production process of aspherical lenses, it is also necessary to polish the surface of the aspherical lens. In the above technology, the polishing and milling device can only polish the edge of the aspherical lens. When polishing the surface of the aspherical lens, the above polishing and milling device cannot polish, and the equipment needs to be replaced. The replacement is time-consuming and affects the production efficiency of aspherical lenses. Summary of the Invention
[0005] The purpose of this invention is to provide a milling device for processing aspherical lenses, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A milling device for processing aspherical lenses, comprising:
[0008] A clamping assembly for clamping a lens, the clamping assembly comprising two sets of symmetrically distributed clamping plates;
[0009] A milling assembly for milling and polishing a lens, the milling assembly including a milling cutter for polishing the edge of an aspherical lens and a polishing rod for polishing the surface of an aspherical lens;
[0010] A fixing assembly for fixing the milling cutter and the grinding rod, the fixing assembly including a mounting base for mounting the milling cutter and a mounting plate for mounting the grinding rod;
[0011] A protective component, fitted over the outside of the clamping plates, is used to surround the lens between the two sets of clamping plates to prevent dust from falling during the polishing process.
[0012] Furthermore, the clamping assembly also includes a processing table, the upper end of which is provided with a first guide groove, and a double-ended lead screw is rotatably disposed inside the first guide groove;
[0013] A first motor is installed at one end of the processing table corresponding to the end position of the double-ended lead screw, and one end of the double-ended lead screw passes through the processing table and is connected to the output end of the first motor.
[0014] Furthermore, the outer surface of the double-ended lead screw is screwed with two sets of symmetrically distributed guide blocks, and each guide block has a shelf installed at its upper end;
[0015] Both sets of shelves have a rotating shaft on their sidewalls that are close to each other, and a second motor is installed on the sidewall of one set of shelves at the position corresponding to the rotating shaft.
[0016] The output end of the second motor passes through the shelf and is connected to the end of the rotating shaft;
[0017] The two sets of rotating shafts are connected to the clamping plate at their closest points.
[0018] The two sets of clamping plates clamp the lens through the cooperation of the double-ended lead screw, the guide block, and the placement plate.
[0019] Furthermore, the milling assembly also includes a second guide groove formed at the upper end of the machining table, a first transmission screw is rotatably disposed inside the second guide groove, and a third motor is installed on the side wall of the machining table at a position corresponding to the first transmission screw, and the output end of the third motor is connected to the end of the first transmission screw.
[0020] Another set of guide blocks is screwed onto the outer surface of the first transmission screw. A connecting rod is installed at the upper end of the guide block, and the mounting seat is installed on one side of the connecting rod.
[0021] The mounting base has a mounting groove at one end facing the clamping plate. The milling cutter is installed inside the mounting groove, and a fixing bolt is screwed into the mounting groove at the position corresponding to the position of the milling cutter.
[0022] Furthermore, the mounting plate is installed on one side of one set of clamping plates, and the mounting plate is connected to the side wall of the clamping plate by bolts;
[0023] The mounting plate has a sliding groove at the center of the side wall facing the other set of clamping plates. A second transmission screw is rotatably installed inside the sliding groove, and a slider is screwed onto the second transmission screw. A grinding rod is installed on the side wall of the slider.
[0024] The side wall of the mounting plate is provided with a clearance cavity at the end position of the second transmission screw. A fourth motor is installed inside the clearance cavity, and the output end of the fourth motor is connected to the end of the second transmission screw.
[0025] Furthermore, another set of clamping plates has a cavity inside, and the sidewalls of the clamping plates have multiple sets of spaced adsorption holes at positions corresponding to the cavity.
[0026] Another set of the storage panels is equipped with a vacuum pump on its side wall, and a connecting pipe is provided between the output end of the vacuum pump and the cavity.
[0027] Furthermore, an oil storage cavity is provided inside the guide block;
[0028] The guide block has through grooves on both sides corresponding to the position of the oil storage cavity, and the two sets of through grooves are sealed and slidably equipped with extension tubes inside.
[0029] A collar is installed at one end of the extension tube corresponding to the double-ended lead screw. The collar is sleeved on the outside of the double-ended lead screw, and multiple sets of spaced second return springs are provided between the inner wall of the collar and the end of the guide block.
[0030] The collar is fitted with bristles on the inner wall facing the double-ended lead screw.
[0031] Furthermore, the inner wall of the guide block is provided with multiple sets of spaced second oil outlet holes, and the oil storage cavity is sealed and slidably equipped with a stop block at the position corresponding to the second oil outlet hole;
[0032] The end of the extension tube away from the collar passes through the through groove and is connected to one side wall of the stop block;
[0033] The extension tube has multiple sets of spaced-apart first oil outlet holes.
[0034] Furthermore, the protective assembly includes a protective ring slidably disposed outside the clamping plate, the protective ring having a clearance groove, and a sealing airbag provided on the side wall of one set of the protective rings;
[0035] The outer wall of the clamping plate is provided with an annular limiting groove, the protective ring is sleeved at the position of the limiting groove, and the inner wall of the protective ring is provided with a limiting block corresponding to the position of the limiting groove. The protective ring is rotatably and slidably connected with the clamping plate through the cooperation of the limiting groove and the limiting block.
[0036] Furthermore, a first reset spring is provided between one side wall of the limiting block and one side wall of the inner side of the limiting groove, and an air-storing airbag is provided between the other side wall of the limiting block and the other side wall of the inner side of the limiting groove.
[0037] A countersunk hole is provided at the center of the side wall of the two sets of clamping plates that are close to each other. A clamping airbag is provided inside the countersunk hole, and an exhaust pipe is provided between the clamping airbag and the air storage airbag.
[0038] An arc-shaped support plate is installed at the bottom of the outer surface of one of the protective rings.
[0039] Compared with the prior art, the beneficial effects of the present invention are:
[0040] 1. The mounting plate is bolted to the side wall of a set of clamping plates. Then, a vacuum pump is used to adsorb the aspherical lens to be polished onto the side wall of another set of clamping plates. The first motor is then started to bring the two sets of clamping plates closer together until the end of the polishing rod contacts the aspherical lens. The second motor is then started to rotate the mounting plate, and the polishing rod on the mounting plate can polish the surface of the aspherical lens. When it is necessary to polish the edge of the aspherical lens, the mounting plate is removed, and the lens is clamped by the clamping assembly. After clamping, the connecting rod drives the milling cutter to be inserted between the two sets of clamping plates to polish the edge of the aspherical lens. All-round polishing of aspherical lenses can be achieved without changing equipment, saving a lot of time and improving production efficiency.
[0041] 2. The lens compresses the clamping airbag, causing the gas inside the clamping airbag to be discharged into the storage airbag through the exhaust pipe. The storage airbag expands, and with the cooperation of the limiting block, the protective ring is pushed out, so that the two sets of protective rings come closer to each other and form a sealed space to prevent debris from flying out when the lens is polished.
[0042] 3. When adjusting the position of the two sets of shelves, the guide block moves on the double-ended lead screw. During the movement, the bristles on the inner wall of the collar clean the surface of the double-ended lead screw to prevent debris from adhering to the surface of the double-ended lead screw and affecting the movement of the guide block. At the same time, when the elastically set collar is held, the collar drives the stop block to move through the extension tube. At this time, the stop block is misaligned with the second oil outlet. When the first oil outlet on the extension tube moves into the oil storage chamber, the lubricating oil in the oil storage chamber is discharged to the surface of the double-ended lead screw for lubrication through the cooperation of the first oil outlet and the second oil outlet. Attached Figure Description
[0043] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0044] Figure 2 This is a side view of the three-dimensional structure of the present invention;
[0045] Figure 3 This is a schematic diagram of the grinding block structure of the present invention;
[0046] Figure 4 This is a schematic diagram showing the connection between the protective ring, the clamping plate, and the vacuum pump structure of the present invention;
[0047] Figure 5 This is a cross-sectional view of the protective ring and clamping plate structure of the present invention when they are connected;
[0048] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle;
[0049] Figure 7 This is a schematic diagram showing the connection between the shelf and the guide block structure of the present invention;
[0050] Figure 8 This is a schematic cross-sectional view of the guide block structure of the present invention;
[0051] Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point B;
[0052] Figure 10 This is a schematic diagram showing the connection between the mounting plate and the grinding rod structure of the present invention.
[0053] In the diagram: 1. Machining table; 2. First guide groove; 3. First motor; 4. Shelf; 5. Rotating shaft; 6. Protective ring; 7. Second motor; 8. Connecting rod; 9. Milling cutter; 10. Double-ended lead screw; 11. Third motor; 11. Second guide groove; 12. First transmission lead screw; 13. Clamping plate; 15. Clamping airbag; 16. Relief groove; 17. Arc-shaped support plate; 18. Sealing airbag; 19. Limiting groove; 20. Limiting block; 21. Air storage airbag; 22. Exhaust pipe; 23. First return spring; 24. Guide. Block 25, collar 26, second return spring 27, through groove 28, extension tube 29, brush bristles 30, first oil outlet 31, oil storage chamber 32, stop block 33, second oil outlet 34, countersunk hole 35, adsorption hole 36, vacuum pump 37, cavity 38, connecting tube 39, mounting plate 42, slide groove 43, second transmission screw 44, slider 45, grinding rod 46, clearance cavity 47, fourth motor 48, mounting base 49, mounting groove 50, fixing bolt 51. Detailed Implementation
[0054] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.
[0055] Example 1:
[0056] Please see Figures 1 to 10 The present invention provides a technical solution: a milling device for processing aspherical lenses, a clamping assembly for clamping lenses, the clamping assembly including two sets of symmetrically distributed clamping plates 15;
[0057] A protective component is fitted over the outside of the clamping plate 15 to surround the lens between the two sets of clamping plates 15.
[0058] A milling assembly, disposed on one side of the clamping assembly, is used for milling the lens;
[0059] The lens to be polished is held by a clamping component. After clamping, the lens is surrounded by a protective component. Then, the lens is polished by a polishing component. During the polishing process, the protective component can prevent debris from drifting out from inside the protective component.
[0060] Example 2:
[0061] like Figures 1-2 As shown, the milling device for processing aspherical lenses disclosed in Embodiment 2 of the present invention has a structure that is basically the same as that in Embodiment 1, except that:
[0062] The clamping assembly also includes a processing table 1, the upper end of which is provided with a first guide groove 2, and a double-headed lead screw 10 is rotatably disposed inside the first guide groove 2;
[0063] A first motor 3 is installed at one end of the processing table 1 at the position corresponding to the end of the double-ended lead screw 10. One end of the double-ended lead screw 10 passes through the processing table 1 and is connected to the output end of the first motor 3.
[0064] The outer surface of the double-ended lead screw 10 is screwed with two sets of symmetrically distributed guide blocks 25, and each guide block 25 has a shelf 4 installed at its upper end.
[0065] Both sets of shelf panels 4 have a rotating shaft 5 rotatably mounted on the side wall of each side that is close to each other, and a second motor 7 is installed on the side wall of one set of shelf panels 4 at the position corresponding to the rotating shaft 5.
[0066] The output end of the second motor 7 passes through the shelf 4 and is connected to the end of the rotating shaft 5;
[0067] The two sets of rotating shafts 5 are connected to the clamping plate 15 at their closest ends;
[0068] Start the first motor 3. The first motor 3 drives the two sets of guide blocks 25 to move closer to each other through the double-headed lead screw 10, thereby causing the two sets of shelf plates 4 to move closer to each other. During the process of the two sets of shelf plates 4 moving closer to each other, the clamping plate 15 on the shelf plate 4 can clamp the lens.
[0069] After clamping is completed, the second motor 7 can be started to drive the clamping plate 15 to rotate, thereby driving the lens to rotate.
[0070] Example 3:
[0071] like Figures 4-6 As shown, the milling device for processing aspherical lenses disclosed in Embodiment 3 of the present invention has a structure that is basically the same as that in Embodiment 2, except that:
[0072] The protective assembly includes a protective ring 6 that is slidably disposed outside the clamping plate 15. The protective ring 6 has a clearance groove 17, and a sealing airbag 19 is provided on the side wall of one set of the protective rings 6.
[0073] The outer wall of the clamping plate 15 is provided with an annular limiting groove 20. The protective ring 6 is sleeved at the position of the limiting groove 20, and the inner wall of the protective ring 6 is provided with a limiting block 21 corresponding to the position of the limiting groove 20. The protective ring 6 is rotatably and slidably connected with the clamping plate 15 through the cooperation of the limiting groove 20 and the limiting block 21.
[0074] A first reset spring 24 is provided between one side wall of the limiting block 21 and one side wall of the inner side of the limiting groove 20, and an air-storing airbag 22 is provided between the other side wall of the limiting block 21 and the other side wall of the inner side of the limiting groove 20.
[0075] A countersunk hole 35 is provided at the center of the side wall of the two sets of clamping plates 15 that are close to each other. A clamping airbag 16 is provided inside the countersunk hole 35, and an exhaust pipe 23 is provided between the clamping airbag 16 and the air storage airbag 22.
[0076] During the clamping process, the lens compresses the clamping airbag 16, causing the gas inside the clamping airbag 16 to be discharged into the storage airbag 22 through the exhaust pipe 23. The storage airbag 22 expands, and with the cooperation of the limiting block 21, the protective ring 6 is pushed out, so that the two sets of protective rings 6 come closer to each other, cooperate with the sealing airbag 19 and form a sealed space to prevent debris from flying out when the lens is polished.
[0077] Example 4:
[0078] like Figures 4-5 As shown, the milling device for processing aspherical lenses disclosed in Embodiment 4 of the present invention has a structure that is basically the same as that in Embodiment 3, except that:
[0079] An arc-shaped support plate 18 is installed at the bottom of the outer surface of one set of the protective rings 6;
[0080] After grinding, the two sets of clamping plates 15 move away from each other. At this time, the clamping airbag 16 is no longer squeezed. Through the action of the first reset spring 24, the protective ring 6 is reset. At this time, the grinding debris is scraped off by the edge of the clamping plate 15. When the edge of the protective ring 6 and the edge of the clamping plate 15 coincide, the debris falls into the surface of the arc-shaped tray 18 for easy collection.
[0081] Example 5:
[0082] like Figures 2-3 As shown, the milling device for processing aspherical lenses disclosed in Embodiment 5 of the present invention has a structure that is basically the same as that in Embodiment 4, except that:
[0083] The milling assembly includes a second guide groove 12 formed at the upper end of the machining table 1. A first transmission screw 13 is rotatably disposed inside the second guide groove 12. A third motor 11 is installed on the side wall of the machining table 1 at a position corresponding to the first transmission screw 13. The output end of the third motor 11 is connected to the end of the first transmission screw 13.
[0084] Another set of guide blocks 25 are screwed onto the outer surface of the first transmission screw 13. A connecting rod 8 is installed at the upper end of the guide block 25, and a mounting seat 49 is installed on one side of the connecting rod 8.
[0085] The mounting base 49 has a mounting groove 50 at one end facing the clamping plate 15. A milling cutter 9 is inserted into the mounting groove 50, and a fixing bolt 51 is screwed into the mounting groove 50 at the position corresponding to the milling cutter 9.
[0086] Through the cooperation of the third motor 11, the first transmission screw 13, and the guide block 25, the connecting rod 8 is driven to move toward the two sets of clamping plates 15. After moving a certain distance, the milling cutter 9 is inserted into the notch formed by the two sets of relief grooves 17 to achieve all-round sealing and contact with the lens. When the clamping plate 15 drives the lens to rotate, it mills the edge of the lens.
[0087] Example 6:
[0088] like Figures 7-9 As shown, the milling device for processing aspherical lenses disclosed in Embodiment Six of the present invention has a structure that is basically the same as that in Embodiment Five, except that:
[0089] The guide block 25 has an oil storage cavity 32 inside;
[0090] The guide block 25 has through grooves 28 on both sides corresponding to the position of the oil storage cavity 32, and the two sets of through grooves 28 are sealed and slidably provided with extension tubes 29 inside.
[0091] The extension tube 29 is equipped with a collar 26 at one end of the double-ended lead screw 10. The collar 26 is sleeved on the outside of the double-ended lead screw 10, and multiple sets of spaced second return springs 27 are provided between the inner wall of the collar 26 and the end of the guide block 25.
[0092] The collar 26 is fitted with bristles 30 facing the inner wall of the double-ended lead screw 10;
[0093] The inner wall of the guide block 25 is provided with a plurality of sets of spaced second oil outlet holes 34, and the oil storage cavity 32 is sealed and slidably provided with a stop block 33 at the position corresponding to the second oil outlet holes 34.
[0094] The end of the extension tube 29 away from the collar 26 passes through the through groove 28 and is connected to one side wall of the stop block 33;
[0095] The extension tube 29 has multiple sets of spaced first oil outlet holes 31;
[0096] When adjusting the positions of the two sets of shelves 4, the guide block 25 moves on the double-ended lead screw 10. During the movement, the bristles 30 on the inner wall of the collar 26 clean the surface of the double-ended lead screw 10 to prevent debris from adhering to the surface of the double-ended lead screw 10 and affecting the movement of the guide block 25. At the same time, when the elastically set collar 26 is held, the collar 26 drives the stop block 33 to move through the extension tube 29. At this time, the stop block 33 is misaligned with the second oil outlet 34. When the first oil outlet 31 on the extension tube 29 moves into the oil storage chamber 32, the lubricating oil in the oil storage chamber 32 is discharged to the surface of the double-ended lead screw 10 for lubrication through the cooperation of the first oil outlet 31 and the second oil outlet 34.
[0097] Example 7:
[0098] like Figures 4-5 as well as Figure 10 As shown, the milling device for processing aspherical lenses disclosed in Embodiment 7 of the present invention has a structure that is basically the same as that in Embodiment 6, except that:
[0099] One set of clamping plates 15 has a cavity 38 inside, and the side wall of the clamping plate 15 has a plurality of spaced adsorption holes 36 at the position corresponding to the cavity 38.
[0100] Another set of the storage plates 4 are equipped with a vacuum pump 37 on their side walls, and a connecting pipe 39 is provided between the output end of the vacuum pump 37 and the cavity 38;
[0101] The milling assembly also includes a mounting plate 42 mounted on one side of another set of clamping plates 15, the mounting plate 42 being connected to the side wall of the clamping plates 15 by bolts;
[0102] The mounting plate 42 has a groove 43 at the center of the side wall facing the other set of clamping plates 15. A second transmission screw 44 is rotatably arranged inside the groove 43, and a slider 45 is screwed onto the second transmission screw 44. A grinding rod 46 is installed on the side wall of the slider 45.
[0103] The side wall of the mounting plate 42 is provided with a relief cavity 47 at the end position of the second transmission screw 44. A fourth motor 48 is provided inside the relief cavity 47, and the output end of the fourth motor 48 is connected to the end of the second transmission screw 44.
[0104] When it is necessary to polish the surface of the aspherical lens, the mounting plate 42 is bolted to the side wall of a set of clamping plates 15. Then, the vacuum pump 37 is started. The vacuum pump 37, through the cooperation of the connecting pipe 39 and the suction hole 36, suctions the aspherical lens to be polished to the side wall of another set of clamping plates 15. Then, the first motor 3 is started, so that the two sets of clamping plates 15 are brought closer to each other until the end of the polishing rod 46 contacts the aspherical lens. Then, the second motor 7 is started. Through the cooperation of the second motor 7 and the clamping plate 15, the mounting plate 42 is rotated. The polishing rod 46 set on the mounting plate 42 can then polish the surface of the aspherical lens. During the polishing process, the fourth motor 48 is started. The fourth motor 48, through the cooperation of the second transmission screw 44 and the slider 45, drives the polishing rod 46 to move, so as to achieve all-round polishing of the aspherical lens.
[0105] Specifically, the solution is as follows: the first motor 3 is started, and the first motor 3 drives the two sets of guide blocks 25 to move closer to each other through the double-headed lead screw 10, thereby causing the two sets of shelf plates 4 to move closer to each other. During the process of the two sets of shelf plates 4 moving closer to each other, the clamping plate 15 on the shelf plate 4 can clamp the lens.
[0106] During the clamping process, the lens compresses the clamping airbag 16, causing the gas inside the clamping airbag 16 to be discharged into the gas storage airbag 22 through the exhaust pipe 23. The gas storage airbag 22 expands, and with the cooperation of the limiting block 21, the protective ring 6 is pushed out, so that the two sets of protective rings 6 come close to each other and form a sealed space.
[0107] Then, through the cooperation of the third motor 11, the first transmission screw 13, and the guide block 25, the connecting rod 8 is driven to move toward the two sets of clamping plates 15. After moving a certain distance, the milling cutter 9 is inserted into the notch formed by the two sets of relief grooves 17 to achieve all-round sealing and contact with the lens. Then, through the cooperation of the second motor 7, the rotating shaft 5, and the clamping plate 15, the lens is driven to rotate, and the side of the milling cutter 9 mills the edge of the lens.
[0108] When it is necessary to polish the surface of the aspherical lens, the mounting plate 42 is bolted to the side wall of a set of clamping plates 15. Then, the vacuum pump 37 is started. The vacuum pump 37, through the cooperation of the connecting pipe 39 and the suction hole 36, suctions the aspherical lens to be polished to the side wall of another set of clamping plates 15. Then, the first motor 3 is started, so that the two sets of clamping plates 15 are brought closer to each other until the end of the polishing rod 46 contacts the aspherical lens. Then, the second motor 7 is started. Through the cooperation of the second motor 7 and the clamping plate 15, the mounting plate 42 is rotated. The polishing rod 46 set on the mounting plate 42 can then polish the surface of the aspherical lens. During the polishing process, the fourth motor 48 is started. The fourth motor 48, through the cooperation of the second transmission screw 44 and the slider 45, drives the polishing rod 46 to move, so as to achieve all-round polishing of the aspherical lens.
[0109] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.
Claims
1. A milling device for processing aspherical lenses, characterized in that, include: A clamping assembly for clamping a lens, the clamping assembly comprising two sets of symmetrically distributed clamping plates (15). A milling assembly for milling and polishing a lens, the milling assembly including a milling cutter (9) for polishing the edge of an aspherical lens and a polishing rod (46) for polishing the surface of an aspherical lens. A fixing assembly for fixing the milling cutter (9) and the grinding rod (46), the fixing assembly including a mounting base (49) for mounting the milling cutter (9) and a mounting plate (42) for mounting the grinding rod (46). The mounting plate (42) is mounted on one of the clamping plates (15), and the mounting plate (42) is equipped with a lifting assembly for driving the grinding rod (46) to rise and fall. The other clamping plate (15) is provided with an adsorption assembly at the position corresponding to the grinding rod (46) for adsorbing aspherical lenses. A protective component is fitted over the outside of the clamping plate (15) to surround the lens between the two sets of clamping plates (15) and prevent dust from falling during the polishing process. The protective assembly includes a protective ring (6) that is slidably disposed outside the clamping plate (15), the protective ring (6) having a clearance groove (17), and a sealing airbag (19) provided on the side wall of one set of the protective rings (6). The outer wall of the clamping plate (15) is provided with an annular limiting groove (20), the protective ring (6) is sleeved at the position of the limiting groove (20), and the inner wall of the protective ring (6) is provided with a limiting block (21) corresponding to the position of the limiting groove (20). The protective ring (6) is rotatably and slidably connected with the clamping plate (15) through the cooperation of the limiting groove (20) and the limiting block (21). A first reset spring (24) is provided between one side wall of the limiting block (21) and one side wall of the inner side of the limiting groove (20), and an air-storing airbag (22) is provided between the other side wall of the limiting block (21) and the other side wall of the inner side of the limiting groove (20). A countersunk hole (35) is provided at the center of the side wall of the two sets of clamping plates (15) that are close to each other. A clamping airbag (16) is provided inside the countersunk hole (35), and an exhaust pipe (23) is provided between the clamping airbag (16) and the air storage airbag (22). An arc-shaped support plate (18) is installed at the bottom of the outer surface of one of the protective rings (6).
2. The milling device for processing aspherical lenses according to claim 1, characterized in that, The clamping assembly also includes a processing table (1), the upper end of which is provided with a first guide groove (2), and a double-headed lead screw (10) is rotatably arranged inside the first guide groove (2). A first motor (3) is installed at one end of the processing table (1) at the end position corresponding to the end of the double-ended lead screw (10). One end of the double-ended lead screw (10) passes through the processing table (1) and is connected to the output end of the first motor (3).
3. The milling device for processing aspherical lenses according to claim 2, characterized in that, The outer surface of the double-ended lead screw (10) is screwed with two sets of symmetrically distributed guide blocks (25), and each guide block (25) has a shelf (4) installed at its upper end. The two sets of shelves (4) are rotatably provided with a rotating shaft (5) on the side wall of each other, and a second motor (7) is installed on the side wall of one set of shelves (4) at the position corresponding to the rotating shaft (5). The output end of the second motor (7) passes through the shelf (4) and is connected to the end of the rotating shaft (5); The two sets of rotating shafts (5) are connected to the clamping plate (15) at their closest ends; The two sets of clamping plates (15) clamp the lens through the cooperation of the double-ended lead screw (10), the guide block (25) and the placement plate (4).
4. The milling device for processing aspherical lenses according to claim 3, characterized in that, The milling assembly further includes a second guide groove (12) formed at the upper end of the machining table (1), a first transmission screw (13) is rotatably arranged inside the second guide groove (12), and a third motor (11) is installed on the side wall of the machining table (1) at a position corresponding to the first transmission screw (13), and the output end of the third motor (11) is connected to the end of the first transmission screw (13). Another set of guide blocks (25) are screwed onto the outer surface of the first transmission screw (13). A connecting rod (8) is installed at the upper end of the guide block (25), and the mounting seat (49) is installed on one side of the connecting rod (8). The mounting base (49) has a mounting groove (50) at one end facing the clamping plate (15), the milling cutter (9) is installed inside the mounting groove (50), and a fixing bolt (51) is screwed into the mounting groove (50) at the position corresponding to the milling cutter (9).
5. The milling device for processing aspherical lenses according to claim 4, characterized in that, The mounting plate (42) is mounted on one side of one of the clamping plates (15), and the mounting plate (42) is connected to the side wall of the clamping plate (15) by bolts; The lifting assembly includes a groove (43) opened at the center of the side wall of the mounting plate (42) facing another set of clamping plates (15). A second transmission screw (44) is rotatably arranged inside the groove (43), and a slider (45) is screwed onto the second transmission screw (44). A grinding rod (46) is installed on the side wall of the slider (45). The side wall of the mounting plate (42) is provided with a relief cavity (47) at the end position of the second transmission screw (44). A fourth motor (48) is provided inside the relief cavity (47), and the output end of the fourth motor (48) is connected to the end of the second transmission screw (44).
6. The milling device for processing aspherical lenses according to claim 4, characterized in that, The adsorption assembly includes a cavity (38) opened inside another set of clamping plates (15), and the sidewall of the clamping plate (15) is provided with a plurality of spaced adsorption holes (36) at the positions corresponding to the cavity (38). Another set of the storage plates (4) are equipped with a vacuum pump (37) on the side wall, and a connecting pipe (39) is provided between the output end of the vacuum pump (37) and the cavity (38).
7. The milling device for processing aspherical lenses according to claim 3, characterized in that, The guide block (25) has an oil storage cavity (32) inside; The guide block (25) has through grooves (28) on both sides corresponding to the position of the oil storage cavity (32), and the two sets of through grooves (28) are sealed and slidably provided with extension tubes (29). The extension tube (29) is equipped with a collar (26) at one end of the double-ended lead screw (10). The collar (26) is sleeved on the outside of the double-ended lead screw (10), and multiple sets of spaced second return springs (27) are provided between the inner wall of the collar (26) and the end of the guide block (25). The collar (26) is fitted with bristles (30) facing the inner wall of the double-ended lead screw (10).
8. The milling device for processing aspherical lenses according to claim 7, characterized in that, The inner wall of the guide block (25) is provided with multiple sets of spaced second oil outlet holes (34), and the oil storage cavity (32) is sealed and slidably provided with a stop block (33) at the position corresponding to the second oil outlet hole (34). The end of the extension tube (29) away from the collar (26) passes through the through groove (28) and is connected to one side wall of the stop block (33); The extension tube (29) has multiple sets of spaced first oil outlet holes (31).
Citation Information
Patent Citations
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