A diamond wire milling aspheric lens device

Abstract

The present invention relates to the field of lens processing technology, and specifically to a diamond wire milling aspheric lens device, comprising a workbench and a milling device located on one side of the workbench, a clamping assembly comprising a turntable rotatably mounted on the workbench and a clamping plate movably mounted on the turntable, a support cylinder capable of evacuating air is coaxially mounted on the turntable, a telescopic column for pushing and pulling the clamping plate is movably mounted on the support cylinder, a movable air inlet disk and a fixed air inlet disk that fit each other are provided between the telescopic column and the support cylinder, and a control valve is provided between the movable air inlet disk and the telescopic column; and a dial plate rotatably mounted on the turntable, a driving rod is coaxially mounted on the rotating shaft of the dial plate, and a toothed disk is provided at one end of the driving rod away from the dial plate, a rack that meshes with the toothed disk and the movable air inlet disk is slidably mounted on the turntable, and a control panel is provided on the rack. The present invention can make room for the milling device to process, fully process the lens, automatically adjust and make room for grinding, and improve processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of lens processing, and in particular to a diamond wire milling aspheric lens device. Background Art

[0002] Aspheric lens is a very important optical device. As the aspheric lens is an optical lens product with a continuously changing curvature from the center to the edge, it has a better curvature radius and can maintain good aberration correction to obtain the required performance, thereby bringing excellent sharpness and higher resolution. In the optical system, it can correct various aberrations well, improve imaging quality, enhance system identification ability, and obtain incomparable good imaging quality of spherical optical devices.

[0003] The invention patent with announcement number CN118905810A discloses an optical lens polishing machine and a method of use. The lens is clamped and processed by a fixed plate, and the fixed plate is conveniently driven to move by a fixed rod. The optical lens is conveniently fixed by the cooperation of the fixed plate and the fixed frame. In conjunction with the unlocking rod, transmission plate, positioning rod and other mechanisms, the rotation angle of the optical lens can be adjusted according to usage requirements so as to polish the optical lens. The operation is simple and convenient.

[0004] However, in the above technical solution, due to the limitation of the fixture, the grinding equipment cannot perform good grinding on the clamping part during the grinding process, the grinding range is limited, and the lens position needs to be adjusted manually. During the grinding process, the grinding sheet cannot be fully automatically ground, resulting in reduced processing efficiency. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a diamond wire milling aspheric lens device, which can effectively solve the problems in the prior art that the lens fixture affects grinding and polishing, requires manual adjustment, and has low processing efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a diamond wire milling device for an aspheric lens, comprising a workbench and a milling device located on one side of the workbench, and further comprising: A clamping assembly, the clamping assembly comprising a turntable rotatably mounted on a workbench and a clamping plate movably mounted on the turntable for clamping a lens, the turntable being coaxially mounted with a support cylinder capable of pumping air, a telescopic column movably mounted on the support cylinder for pushing and pulling the clamping plate, a movable air inlet disk and a fixed air inlet disk fitted to each other being arranged between the telescopic column and the support cylinder, and a control valve being arranged between the movable air inlet disk and the telescopic column; A paddle rotatably mounted on the turntable, a driving rod coaxially mounted on the rotating shaft of the paddle, and a toothed disc is provided at one end of the driving rod away from the paddle, a rack respectively meshing with the toothed disc and the movable air intake disc is slidably mounted on the turntable, and a control panel is provided on the rack.

[0007] Furthermore, a driving device is provided in the workbench, and an output end of the driving device is transmission-connected to the turntable, and the driving device is used to automatically rotate when polishing the turntable lens.

[0008] Furthermore, the clamping plates are provided in N groups, and the N groups of clamping plates are distributed in a circular array on the turntable, and N>4.

[0009] Furthermore, a fixing sleeve is provided on the support tube, and the telescopic column is arranged on the clamping plate and is slidably connected to the fixing sleeve, and an elastic member is sleeved on the telescopic column and respectively abuts against the fixing sleeve and the clamping plate.

[0010] Furthermore, the movable air intake disk is rotatably mounted on the fixed sleeve, the fixed air intake disk is fixedly arranged on the fixed sleeve, and the movable air intake disk is located on a side of the fixed air intake disk close to the telescopic column, both the movable air intake disk and the fixed air intake disk are provided with air vents, and the control valve is located between the movable air intake disk and the telescopic column.

[0011] Furthermore, it also includes a liquid storage part, which consists of a movable liquid storage ring arranged on the turntable and a fixed liquid storage ring arranged on the workbench, and the movable liquid storage ring and the fixed liquid storage ring are rotatably connected, and the movable liquid storage ring is provided with a liquid guide part for filling the splint with liquid.

[0012] Furthermore, the liquid guiding member is provided with a movable liquid inlet plate and a fixed liquid inlet plate which fit each other, the fixed liquid inlet plate is rotatably connected to the liquid guiding member, and the fixed liquid inlet plate is meshingly connected to the rack, and the movable liquid inlet plate and the fixed liquid inlet plate are both provided with liquid inlet holes.

[0013] Furthermore, the clamping plate is slidably mounted on the turntable via a slider, and a liquid inlet groove is provided on the slider, and a liquid spray hole connected with the liquid inlet groove and facing the support tube is provided on the clamping plate.

[0014] Beneficial Effects Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. By extracting the gas inside the support tube and reducing the internal pressure, the telescopic column is pulled to move toward the support tube, and then the clamp is pulled to clamp the lens. When the milling equipment moves to the place where the clamp is provided, the milling equipment will shift the dial in advance, and the driving rod set on the dial will drive the gear plate to rotate, and then cooperate with the rack to drive the movable air intake disk to rotate, so that the air vent on it is misaligned with the air vent on the fixed air intake disk, so as to achieve the blocking of the fixed sleeve. At the same time, the control board set on the rack squeezes the control valve to replenish the air in the fixed sleeve, and cooperates with the resetting of the elastic part to push the clamp away from the lens, making room for the milling equipment to process, fully process the lens, and automatically adjust to make room for grinding, thereby improving the processing efficiency. 2. When the paddle is moved, the movable liquid inlet plate on the liquid guide part is rotated to connect the liquid inlet hole on the upper part with the liquid inlet hole on the fixed liquid inlet plate, and the liquid guide part is filled with liquid. At the same time, when the splint is retracted and away from the lens due to the resetting of the elastic part, the liquid inlet groove is connected with the liquid discharge end of the liquid guide part, and then the liquid is injected into the splint, and then sprayed to the lens from the spray hole for cooling, thereby reducing the influence of the high temperature generated by grinding on the product and improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional view of the present invention; Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle; Figure 4 For the present invention Figure 2 The enlarged view of point B in the middle; Figure 5 It is a schematic diagram of the connection between the driving rod, the fixing sleeve and the liquid guiding member of the present invention; Figure 6 It is a partial cross-sectional view of the splint of the present invention.

[0017] : 1. workbench; 2. clamping assembly; 21. turntable; 22. support cylinder; 221. fixed sleeve; 2211. movable air inlet disk; 2212. fixed air inlet disk; 2213. control valve; 222. telescopic column; 223. elastic member; 23. liquid storage member; 231. movable liquid storage ring; 232. fixed liquid storage ring; 233. liquid guiding member; 2331. movable liquid inlet disk; 2332. fixed liquid inlet disk; 24. splint; 241. slider; 2411. liquid inlet tank; 242. liquid spray hole; 25. paddle; 251. driving rod; 252. toothed disc; 253. rack; 254. control panel; 3. milling and grinding equipment. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] A diamond wire milling aspheric lens device, refer to the attached Figure 1-6 , comprising a workbench 1 and a milling device 3 located on one side of the workbench 1, wherein the milling device 3 is preferably a diamond wire milling device, and further comprising: A clamping assembly 2 for clamping a lens, the clamping assembly 2 comprising a turntable 21 rotatably mounted on a workbench 1 and a clamping plate 24 movably mounted on the turntable 21 for clamping the lens, wherein a driving device is provided in the workbench 1, and an output end of the driving device is transmission-connected to the turntable 21, the driving device is used to automatically rotate when the turntable 21 lens is polished, and N groups of clamping plates 24 are provided, and the N groups of clamping plates 24 are distributed in a circular array on the turntable 21, N>4, through the arrangement of multiple groups of clamping plates 24, after the multiple groups of clamping plates 24 cooperate to clamp and fix the lens, even if one group of clamping plates 24 is loosened, the lens can still be kept stable under the clamping of the other groups of clamping plates 24; The turntable 21 is coaxially mounted with a support tube 22 capable of pumping air, an air cavity is arranged in the support tube 22, an air pumping pipe for pumping gas and reducing the air pressure in the support tube 22 is arranged at the bottom of the support tube 22, the air pumping pipe is connected to an external negative pressure device, and the connection between the air pumping pipe and the negative pressure device is rotatably connected, a telescopic column 222 for pushing and pulling the clamping plate 24 is movably mounted on the support tube 22, wherein a fixed sleeve 221 is arranged on the support tube 22, and the telescopic column 222 is arranged on the clamping plate 24 and is slidably connected to the fixed sleeve 221 The telescopic column 222 is provided with an elastic member 223 which respectively presses against the fixed sleeve 221 and the clamping plate 24. After the gas in the support tube 22 is extracted, negative pressure is generated in the support tube 22. At this time, the telescopic column 222 is pulled and moves toward the support tube 22, thereby compressing the elastic member 223, pulling the clamping plate 24 toward the support tube 22 and pressing against the clamped lens. After the extraction of the gas in the support tube 22 is cancelled and the pressure is released, the clamping plate 24 is pushed away from the lens under the resetting action of the elastic member 223, thereby releasing the lens. Between the telescopic column 222 and the support tube 22, there are provided a movable air inlet disc 2211 and a fixed air inlet disc 2212 which fit each other. Both the movable air inlet disc 2211 and the fixed air inlet disc 2212 are provided with air vents. In the initial state, that is, the clamping plate 24 is in an open state and away from the support tube 22, the air vents on the movable air inlet disc 2211 and the fixed air inlet disc 2212 correspond to each other, and a control valve 2213 is provided between the movable air inlet disc 2211 and the telescopic column 222. The control valve 2213 is used to fill the fixed sleeve 221 with air. The inflated gas is used to restore the normal pressure, the movable air inlet disc 2211 is rotatably mounted on the fixed sleeve 221, the fixed air inlet disc 2212 is fixedly arranged on the fixed sleeve 221, and the movable air inlet disc 2211 is located on the side of the fixed air inlet disc 2212 close to the telescopic column 222, and the control valve 2213 is located between the movable air inlet disc 2211 and the telescopic column 222, and the movable air inlet disc 2211 is rotated to be misaligned with the fixed air inlet disc 2212 to achieve the blocking of the fixed sleeve 221, thereby achieving the loosening of the local clamping plate 24; And a paddle 25 rotatably mounted on the turntable 21, the number of the paddles 25 corresponds to the number of the clamps 24, and the paddles 25 are located on the side of the clamps 24 away from the support tube 22, a driving rod 251 is coaxially mounted on the rotation axis of the paddle 25, the driving rod 251 penetrates the clamps 24 and extends to the support tube 22, and a toothed disc 252 is provided at one end of the driving rod 251 away from the paddle 25. In addition, a rack 253 is slidably mounted on the turntable 21 and is meshed with the toothed disc 252 and the movable air intake disc 2211 respectively. When the toothed disc 252 follows the rotation of the driving rod 251, the rack 253 is driven to rise, thereby driving the movable air intake disc 2211 to rotate, thereby realizing partial blocking of the interior of the fixed sleeve 221. A control board 254 is provided on the rack 253. The control board 254 follows the rise of the rack 253 to squeeze the control valve 2213 at the bottom of the fixed sleeve 221, thereby replenishing gas into the fixed sleeve 221, so that the pressure inside and outside the fixed sleeve 221 is consistent, and then cooperates with the elastic member 223 to withdraw the clamping plate 24 away from the lens to cancel the clamping.

[0021] In the above technical scheme, the internal gas of the support tube 22 is extracted to reduce the internal pressure, so as to pull the telescopic column 222 to move it toward the support tube 22, and then pull the clamp 24 to clamp the lens. By adjusting the milling equipment 3 to grind and polish the lens, the turntable 21 rotates to perform all-round processing on the lens. When the milling equipment 3 moves to the place where the clamp 24 is provided, the milling equipment 3 will shift the dial plate 25 in advance, and the driving rod 251 provided on the dial plate 25 will drive the gear plate 252 to rotate, and then cooperate with the rack 253 to drive the movable air inlet disk 2211 to rotate, so that the air vent on it is misaligned with the air vent on the fixed air inlet disk 2212, so as to achieve the blocking of the fixed sleeve 221. At the same time, the control panel 254 provided on the rack 253 squeezes the control valve 2213 to replenish the gas in the fixed sleeve 221 to make it consistent with the external air pressure. At this time, when the elastic member 223 is reset, the clamp 24 is pushed away from the lens to make room for the milling equipment 3 to perform processing.

[0022] It is worth mentioning that it also includes a liquid storage part 23, which is composed of a movable liquid storage ring 231 arranged on the turntable 21 and a fixed liquid storage ring 232 arranged on the workbench 1, and the movable liquid storage ring 231 and the fixed liquid storage ring 232 are rotatably connected, so that when the movable liquid storage ring 231 rotates with the turntable 21, liquid can still be normally injected into the liquid storage part 23, and the movable liquid storage ring 231 is provided with a liquid guide part 233 for filling the splint 24 with liquid.

[0023] Specifically, the liquid guide member 233 is provided with a movable liquid inlet plate 2331 and a fixed liquid inlet plate 2332 which fit each other, the fixed liquid inlet plate 2332 is rotatably connected to the liquid guide member 233, and the fixed liquid inlet plate 2332 is meshedly connected to the rack 253, and the movable liquid inlet plate 2331 and the fixed liquid inlet plate 2332 are both provided with liquid inlet holes, and in the initial state, the movable liquid inlet plate 2331 and the fixed liquid inlet plate 2332 are in a dislocated state, and the liquid inlet holes on the movable liquid inlet plate 2331 and the fixed liquid inlet plate 2332 are The liquid holes are misaligned with each other to prevent the cleaning coolant in the liquid storage part 23 from entering the liquid guide part 233. When the paddle 25 is pushed, the driving rod 251 rotates and drives the gear plate 252 to rotate and push the rack 253 to rise, and the rack 253 drives the movable liquid inlet plate 2331 to rotate, so that the liquid inlet holes on the movable liquid inlet plate 2331 and the fixed liquid inlet plate 2332 are connected to each other. Since the liquid storage part 23 is always in a pressurized state, the liquid in the liquid storage part 23 enters the liquid guide part 233 at this time.

[0024] Furthermore, the splint 24 is slidably installed on the turntable 21 through a slider 241, and a liquid inlet groove 2411 is provided on the slider 241. The splint 24 is provided with a liquid spray hole 242 which is connected with the liquid inlet groove 2411 and faces the support tube 22. When the splint 24 slides and moves away from the lens to the extreme position, the liquid inlet groove 2411 on the slider 241 is connected with the discharge end of the liquid guide 233. At this time, the liquid fills the splint 24 and is sprayed toward the workpiece through the liquid spray hole 242, thereby cooling the lens during grinding.

[0025] In the above technical solution, when the dial plate 25 is driven, the movable liquid inlet plate 2331 on the liquid guiding member 233 is rotated to connect the liquid inlet hole on the upper side of the liquid guiding member 233 with the liquid inlet hole on the fixed liquid inlet plate 2332, so as to fill the liquid guiding member 233 with liquid. At the same time, when the splint 24 is retracted and away from the lens due to the reset of the elastic member 223, the liquid inlet groove 2411 is connected with the liquid discharge end of the liquid guiding member 233, and the liquid is injected into the splint 24, and then sprayed toward the lens from the liquid spray hole 242 for cooling.

[0026] Working principle: first, the lens material is placed on the support tube 22, and then the gas inside the support tube 22 is extracted to reduce the internal pressure of the support tube 22. At this time, the telescopic column 222 slidingly arranged on the fixed sleeve 221 will move toward the support tube 22, and then pull the multiple groups of clamps 24 toward the lens and clamp it at the same time, then adjust the position of the milling device 3 and grind and polish the lens, and drive the clamped lens to rotate by rotating the turntable 21 and cooperate with the milling device 3 to perform all-round processing. When the milling device 3 moves to the place where the clamp 24 is provided, the milling device 3 will advance the dial plate 25, and the driving rod 251 arranged on the dial plate 25 will drive the toothed disc 252 to rotate, and then cooperate with the rack 253 to drive the movable air inlet disc 2211 to rotate, so that the air vents on it are aligned with the air vents on the fixed air inlet disc 2212. The vent holes are misaligned to achieve the blocking of the fixed sleeve 221. At the same time, the control board 254 arranged on the rack 253 squeezes the control valve 2213 to replenish gas in the fixed sleeve 221 to make it consistent with the external air pressure. At this time, when the elastic member 223 is reset, the splint 24 is pushed away from the lens to make room for the milling equipment 3 to process. Subsequently, when the paddle 25 is paddled, the movable liquid inlet plate 2331 on the liquid guide member 233 is rotated so that the liquid inlet hole on it is connected with the liquid inlet hole on the fixed liquid inlet plate 2332, and the liquid guide member 233 is filled with liquid. At the same time, when the splint 24 is retracted and away from the lens due to the reset of the elastic member 223, the liquid inlet groove 2411 is connected with the discharge end of the liquid guide member 233, and the liquid is injected into the splint 24, and then sprayed to the lens from the spray hole 242 for cooling.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A diamond wire milling device for grinding an aspheric lens, comprising a workbench (1) and a milling device (3) located on one side of the workbench (1), characterized in that: Also includes: A clamping assembly (2), the clamping assembly (2) comprising a turntable (21) rotatably mounted on a workbench (1) and a clamping plate (24) movably mounted on the turntable (21) for clamping a lens, the turntable (21) being coaxially mounted with a support cylinder (22) capable of pumping air, the support cylinder (22) being movably mounted with a telescopic column (222) for pushing and pulling the clamping plate (24), a movable air intake disk (2211) and a fixed air intake disk (2212) being arranged between the telescopic column (222) and the support cylinder (22), and a control valve (2213) being arranged between the movable air intake disk (2211) and the telescopic column (222); and a dial plate (25) rotatably mounted on the rotating disk (21); a driving rod (251) is coaxially mounted on the rotating shaft of the dial plate (25); a toothed disk (252) is provided at one end of the driving rod (251) away from the dial plate (25); a rack (253) meshing with the toothed disk (252) and the movable air intake disk (2211) is slidably mounted on the rotating disk (21); and a control panel (254) is provided on the rack (253).

2. A diamond wire milling aspheric lens device according to claim 1, characterized in that: A driving device is provided inside the workbench (1), and an output end of the driving device is transmission-connected to the turntable (21), and the driving device is used to automatically rotate when the lens on the turntable (21) is polished.

3. The diamond wire milling aspheric lens device according to claim 1, characterized in that: The clamping plates (24) are provided in N groups, and the N groups of clamping plates (24) are distributed in a circular array on the rotating disk (21), and N>4.

4. The diamond wire milling aspheric lens device according to claim 1, characterized in that: The support tube (22) is provided with a fixing sleeve (221), and the telescopic column (222) is arranged on the clamping plate (24) and is slidably connected to the fixing sleeve (221), and the telescopic column (222) is provided with an elastic member (223) which respectively abuts against the fixing sleeve (221) and the clamping plate (24).

5. The diamond wire milling aspheric lens device according to claim 1, characterized in that: The movable air intake disc (2211) is rotatably mounted on the fixed sleeve (221), the fixed air intake disc (2212) is fixedly arranged on the fixed sleeve (221), and the movable air intake disc (2211) is located on a side of the fixed air intake disc (2212) close to the telescopic column (222), the movable air intake disc (2211) and the fixed air intake disc (2212) are both provided with air vents, and the control valve (2213) is located between the movable air intake disc (2211) and the telescopic column (222).

6. The diamond wire milling aspheric lens device according to claim 1, characterized in that: The invention also comprises a liquid storage member (23), the liquid storage member (23) comprising a movable liquid storage ring (231) arranged on the rotating disk (21) and a fixed liquid storage ring (232) arranged on the workbench (1), wherein the movable liquid storage ring (231) and the fixed liquid storage ring (232) are rotatably connected, and a liquid guide member (233) for filling the clamping plate (24) with liquid is provided on the movable liquid storage ring (231).

7. The diamond wire milling aspheric lens device according to claim 6, characterized in that: The liquid guide member (233) is provided with a movable liquid inlet plate (2331) and a fixed liquid inlet plate (2332) which fit together; the fixed liquid inlet plate (2332) is rotatably connected to the liquid guide member (233), and the fixed liquid inlet plate (2332) is meshingly connected to the rack (253); and both the movable liquid inlet plate (2331) and the fixed liquid inlet plate (2332) are provided with liquid inlet holes.

8. The diamond wire milling aspheric lens device according to claim 7, characterized in that: The clamping plate (24) is slidably mounted on the rotating disk (21) via a slider (241), and a liquid inlet groove (2411) is provided on the slider (241). The clamping plate (24) is provided with a liquid spray hole (242) which is in communication with the liquid inlet groove (2411) and faces the support tube (22).

Images