Automatic milling and grinding machine for optical lens

Abstract

The invention discloses an automatic milling and grinding machine for an optical lens, and belongs to the technical field of optical lens machining.The automatic milling and grinding machine for the optical lens comprises a fixed rack, a clamping and rotating mechanism is fixedly installed at the top of the fixed rack, and the clamping and rotating mechanism comprises a clamping assembly and a rotating driving assembly; a pushing mechanism is installed at the rear end of the top of the clamping rotating mechanism, and a feeding frame used for supplying materials to the pushing mechanism is further installed on one side of the top of the clamping rotating mechanism. A milling, grinding and polishing mechanism matched with the pushing mechanism is fixedly installed at the front end of the top of the fixed rack, and a spraying mechanism used for spraying water in the milling and grinding process is further installed on the milling, grinding and polishing mechanism. According to the full-automatic optical lens milling and polishing machine, through the clamping rotating mechanism, the pushing mechanism and the milling and polishing mechanism which are compactly designed, full-automatic milling and polishing machining of large-batch optical lenses can be rapidly completed, the overall production and machining efficiency is improved, and meanwhile the machining progress during large-batch machining is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of optical lens processing, and in particular relates to an automatic milling machine for optical lenses. Background Art

[0002] Optical lens automatic milling and grinding machine is a kind of equipment used for optical lens processing, mainly used for lens milling, grinding and finishing. Its main function is to polish the surface of optical lens and trim the shape to achieve specific optical performance requirements. Automatic milling and grinding machine usually has the characteristics of high precision and high automation, and can complete high-quality lens processing in a short time.

[0003] Modern milling machines are usually equipped with automated control systems that can automatically complete milling, grinding and other process steps, reduce manual intervention and improve production efficiency. In addition, automatic milling machines usually have a variety of processing functions, such as rough grinding, fine grinding, polishing, etc., which can meet the processing needs of different types of optical lenses. There are many different types of automatic milling machines on the market, but most of them use pneumatic clamping loading and unloading mechanisms. The lens picking, transition, transmission, loading and unloading are all operated by independent drive components and clamping suction cups. Although automated processing is achieved, it also seriously affects the overall production and processing efficiency. When large-scale lens milling and grinding is required, the existing equipment will seriously affect the overall production and processing progress. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide an automatic milling machine for optical lenses.

[0005] The technical solution adopted to solve the above technical problems is: an automatic milling machine for optical lenses, comprising a fixed frame, a clamping and rotating mechanism is fixedly installed on the top of the fixed frame, the clamping and rotating mechanism comprises a clamping assembly and a rotating drive assembly, wherein the clamping assembly is used to drive the rotating drive assembly to automatically open and close;

[0006] A material pushing mechanism is installed at the rear end of the top of the clamping and rotating mechanism, and a material loading rack for feeding materials to the material pushing mechanism is also installed on one side of the top of the clamping and rotating mechanism;

[0007] A milling and polishing mechanism matching the material pushing mechanism is fixedly installed at the front end of the top of the fixed frame, and a spraying mechanism for spraying water during the milling process is also installed on the milling and polishing mechanism;

[0008] A material unloading guide mechanism is also installed between the milling and polishing mechanism and the fixed frame, and an automatic conveying mechanism is arranged at the front end of the fixed frame.

[0009] Furthermore, the clamping assembly includes a support plate fixed to the top of the fixed frame. The front end of the top of the support plate is fixedly connected to a support frame. Two parallel double-headed ball screws are rotatably connected inside the support frame. A first servo motor is also installed in the middle of one end of the support frame. One end of each of the two double-headed ball screws is equipped with a single-groove pulley. The output end of the first servo motor is equipped with a double-groove pulley. Two drive belts are installed between the double-groove pulley and the two single-groove pulleys.

[0010] Through the above technical solution, the clamping assembly is mainly used to drive the rotation drive assembly to open and close. During operation, the first servo motor drives the double-groove pulley to rotate. When the double-groove pulley rotates, it can drive the two single-groove pulleys to rotate respectively through the two drive belts, and then can drive the two double-headed ball screws to rotate at the same time. The first servo motor can drive the rotation drive assembly to close or open through forward and reverse rotation.

[0011] Furthermore, the rotation drive assembly includes a left clamping plate and a right clamping plate. Two ball nut seats are provided on both the left clamping plate and the right clamping plate. The left clamping plate and the right clamping plate are installed between the two double-headed ball screws through two groups of ball nut seats. Semi-circular limiting sliding grooves that fit each other are opened on the inner end faces of the left clamping plate and the right clamping plate. Semi-circular rotating gear rings are slidably installed in the two semi-circular limiting sliding grooves. Rubber pads are fixedly connected to the inner side surfaces of the two semi-circular rotating gear rings. A transmission gear and a first driving gear are respectively rotatably connected inside the right clamping plate. A second servo motor for driving the first driving gear to rotate is installed at the rear end of the right clamping plate.

[0012] Through the above technical solution, when the rotation drive assembly is working, after the lens body to be processed is pushed into the area between the left clamping plate and the right clamping plate, the clamping assembly simultaneously drives the left clamping plate and the right clamping plate to approach each other, thereby realizing clamping and fixing of the lens body in this area. Since rubber pads are provided on the inner sides of the two semi-circular rotating gear rings, the firmness and stability in the clamping state can be ensured. After the clamping and fixing are completed, at this time, the second servo motor drives the first driving gear to rotate, and then realizes transmission through the gear meshing between the first driving gear, the transmission gear and the two semi-circular rotating gear rings, and then can drive the two semi-circular rotating gear rings to rotate in the circular sliding groove formed by the two semi-circular limiting sliding grooves, and then can drive the lens body to be processed to rotate synchronously. The lens body can cooperate with the milling and polishing mechanism for milling and processing when rotating.

[0013] Furthermore, the transmission gear and the first driving gear are meshed with each other, and the transmission gear can alternately mesh with the two semi-circular rotating gear rings during operation.

[0014] Through the above technical solution, by adopting two semi-circular rotating gear rings, on the one hand, it can slide within two semi-circular limiting sliding grooves to achieve the rotational drive of the lens body. At the same time, the split structure design also enables the left clamping plate and the right clamping plate to open and close freely, facilitating the feeding and discharging of the lens body. This not only saves the material loading and unloading time but also improves the overall production and processing efficiency.

[0015] Furthermore, the pushing mechanism includes a first mounting seat and a second mounting seat fixed to the top of the clamping assembly. An inlet pipe is fixedly installed between the first mounting seat and the second mounting seat, and the front end of the inlet pipe is in contact with the rotational drive assembly. An inlet opening is provided on the inlet pipe, and a plurality of lens bodies are placed inside the inlet pipe. A servo cylinder is fixedly installed at the rear end of the first mounting seat, and the front end of the piston rod of the servo cylinder is fixedly connected to a pushing head, which slides within the inlet pipe.

[0016] Through the above technical solution, the pushing mechanism is mainly used for the servo feeding of multiple lens bodies. An inclined inlet opening is provided on the inlet pipe, which can accurately cooperate with the loading rack. The lens bodies conveyed in the loading rack can accurately roll into the inlet pipe through the inlet opening, so that multiple lens bodies can be stacked in the inlet pipe at one time. During processing, the piston rod of the servo cylinder will drive the pushing head at the front end to move forward, and then, each time during processing, the lens body at the forefront can be pushed to the clamping position of the rotational drive assembly for accurate clamping and fixing by the rotational drive assembly. After each push, the pushing head will automatically reset, and then the lens bodies in the loading rack can automatically roll into this vacant position, thereby realizing continuous automated production and processing.

[0017] Furthermore, the milling and polishing mechanism includes a cover body. The outer surface of the front end of the cover body is respectively fixedly connected with a moving guide rail and a fixed rack. An H-shaped sliding bracket is slidably connected to the moving guide rail. At the bottom ends of both ends of the H-shaped sliding bracket, a lens milling unit and a lens polishing unit are respectively fixedly installed. A motor bracket is also fixedly installed on the H-shaped sliding bracket, and a third servo motor is installed on the motor bracket. The output end of the third servo motor is fixedly connected to a second driving gear that meshes with the fixed rack.

[0018] Through the above technical solution, the milling, grinding and polishing mechanism is mainly used for automatically milling, grinding and polishing the lens body. During actual operation, when the lens body is clamped in place, the lens body rotates at a high speed driven by the rotation drive assembly. At the same time, the third servo motor also drives the second drive gear to rotate. Through the meshing transmission between the second drive gear and the fixed rack, the entire H-shaped sliding bracket can be driven to slide horizontally on the moving guide rail. In the initial processing stage, the H-shaped sliding bracket drives the lens milling unit and the lens polishing unit to move towards one side of the right clamping plate as a whole. At this time, the lens milling unit also contacts the lens body at a constant speed. The milling grinding wheel rotating at a high speed on the lens milling unit will automatically mill and cut the front end face of the lens body until it is milled into shape. Further, after the milling is completed, the H-shaped sliding bracket will move in the reverse direction and then slowly move towards the left clamping plate. At this time, the lens polishing unit will slowly contact the formed lens body, and then use the polishing wheel of the lens polishing unit to polish the front end face of the lens body. After the polishing is completed, the third servo motor drives the H-shaped sliding bracket back to the initial position, thus completing one milling and polishing process of the lens body.

[0019] Further, both sides of the rear end of the cover body are fixedly connected with L-shaped brackets, and the two L-shaped brackets are both fixed on the top of the fixed frame.

[0020] Further, the spraying mechanism includes a liquid supply pipe installed on the cover body, and an atomizing nozzle is installed at the bottom of the front end of the liquid supply pipe.

[0021] Through the above technical solution, during processing, the top end of the liquid supply pipe is connected to the cutting fluid conveying pipeline, so that the cutting fluid can enter the liquid supply pipe, and then is atomized and sprayed out through the atomizing nozzle at the bottom end. Thus, the cutting fluid can be automatically sprayed during the milling and polishing process of the milling, grinding and polishing mechanism, thereby ensuring the smooth progress of the milling process.

[0022] Further, the blanking guiding mechanism includes a guiding frame rotatably connected to the front end of the cover body. Rotating supports are fixedly installed at the rear end of the guiding frame and the front end of the fixed frame. A driving cylinder is installed between the two rotating supports for driving the guiding frame to rotate.

[0023] Through the above technical solution, the blanking guiding mechanism is mainly used for guiding and conveying the finished optical lenses. In the milling processing state, the guiding frame is close to the vertical state, so that the cutting fluid sewage generated during the milling process can be guided into the sewage collection box below. After the milling processing is completed, the piston rod of the driving cylinder will extend, thereby driving the guiding frame to rotate on the cover body, so that the bottom end of the guiding frame faces the top of the automatic conveying mechanism. At this time, when the rotation drive assembly releases the clamping of the lens body, the processed lens body will slide down along the guiding frame to above the automatic conveying mechanism, and finally the automatic conveying mechanism will convey it to the designated blanking station.

[0024] Further, one side of the top of the fixed frame is fixedly installed with a controller.

[0025] Through the above technical solution, the controller is used for the integrated control of the whole machine, thus ensuring the compact operation of each actuator. At the same time, the corresponding parameters of the actuator can also be digitally adjusted according to the actual processing needs. A sewage collection box for collecting sewage is also placed at the front end of the fixed frame, and the sewage collection box is mainly used for centrally collecting the sewage generated during the milling and grinding process.

[0026] The beneficial effects of the present invention are as follows: (1) By designing a compact clamping and rotating mechanism, a feeding mechanism, and a milling and polishing mechanism, the present invention can quickly complete the full-automatic milling and polishing processing of a large number of optical lenses, improving the overall production and processing efficiency and ensuring the processing progress during large-scale processing; (2) By designing an alternating milling and polishing mechanism, the present invention can not only complete rapid milling processing, but also continuously complete automatic polishing processing after the processing is completed, thereby improving the overall processing quality of the optical lenses and simplifying the entire processing process of the optical lenses, shortening the processing time; (3) By designing a clamping assembly and a rotating drive assembly, the present invention can complete the clamping and rotating drive operations of the optical lenses. Cooperating with a simple feeding mechanism, it can complete operations such as automatic feeding, clamping, rotating drive, and automatic discharging of the lenses, greatly shortening the clamping time in the traditional mode and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the first perspective structure diagram of the present invention;

[0028] Figure 2 is the second perspective structure diagram of the present invention;

[0029] Figure 3 is the structure schematic diagram of the main part of the present invention;

[0030] Figure 4 is the front view of the present invention;

[0031] Figure 5 is the right view of the present invention;

[0032] Figure 6 is the installation structure schematic diagram of the feeding mechanism and the loading rack of the present invention;

[0033] Figure 7 is the front view of the milling and polishing mechanism of the present invention;

[0034] Figure 8 is Figure 7 the sectional view taken along the line A-A in

[0035] Figure 9 is Figure 8 the partial enlarged view of A in

[0036] Figure 10 the schematic structural view of the pusher mechanism and the loading rack of the present invention;

[0037] Figure 11 the schematic structural view of the clamping and rotating mechanism of the present invention from the first perspective;

[0038] Figure 12 the schematic structural view of the clamping and rotating mechanism of the present invention from the second perspective;

[0039] Figure 13 the top view of the clamping and rotating mechanism of the present invention;

[0040] Figure 14 is Figure 13 the sectional view taken along the line B-B in

[0041] Figure 15 the schematic structural view of the partial components of the rotation driving assembly of the present invention;

[0042] Figure 16 the schematic structural view of the milling, grinding and polishing mechanism of the present invention from the first perspective;

[0043] Figure 17 the schematic structural view of the milling, grinding and polishing mechanism of the present invention from the second perspective.

[0044] Reference numerals: 1, fixed frame; 2, clamping and rotating mechanism; 21, clamping assembly; 2101, support plate; 2102, support frame; 2103, double-headed ball screw; 2104, first servo motor; 2105, single-groove pulley; 2106, double-groove pulley; 2107, transmission belt; 22, rotation drive assembly; 2201, left clamping plate; 2202, right clamping plate; 2203, ball nut seat; 2204, semi-circular limiting chute; 2205, semi-circular rotating gear ring; 2206, rubber pad; 2207, transmission gear; 2208, first drive gear; 2209, second servo motor; 3, material pushing mechanism; 301, first mounting seat; 302, second mounting seat; 303, feed pipe; 304, feed inlet; 305, lens body; 306, servo cylinder; 307, material pushing head; 4, loading rack; 5, milling, grinding and polishing mechanism; 501, cover body; 502, moving guide rail; 503, fixed rack; 504, H-shaped sliding bracket; 505, lens milling unit; 506, lens polishing unit; 507, motor bracket; 508, third servo motor; 509, second drive gear; 510, L-shaped bracket; 6, spraying mechanism; 601, liquid supply pipe; 602, atomizing nozzle; 7, blanking guiding mechanism; 701, material guiding frame; 702, rotating support; 703, driving cylinder; 8, automatic conveying mechanism; 9, controller; 10, sewage collection tank. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] As Figures 1 - 17As shown in the figure, an automatic milling machine for optical lenses according to this embodiment includes a fixed frame 1. A clamping and rotating mechanism 2 is fixedly installed on the top of the fixed frame 1. The clamping and rotating mechanism 2 includes a clamping component 21 and a rotation driving component 22. Among them, the clamping component 21 is used to drive the rotation driving component 22 to open and close automatically; the clamping component 21 includes a support plate 2101 fixed to the top of the fixed frame 1. A support frame 2102 is fixedly connected to the front end of the top of the support plate 2101. Two parallel double-headed ball screws 2103 are rotatably connected inside the support frame 2102. A first servo motor 2104 is also installed in the middle of one end of the support frame 2102. Single-groove pulleys 2105 are installed at one ends of the two double-headed ball screws 2103. A double-groove pulley 2106 is installed at the output end of the first servo motor 2104. Two transmission belts 2107 are installed between the double-groove pulley 2106 and the two single-groove pulleys 2105. The clamping component 21 is mainly used to drive the rotation driving component 22 to open and close. During operation, the first servo motor 2104 drives the double-groove pulley 2106 to rotate. The rotation of the double-groove pulley 2106 can drive the two single-groove pulleys 2105 to rotate respectively through the two transmission belts 2107, and then can drive the two double-headed ball screws 2103 to rotate at the same time. The first servo motor 2104 can drive the rotation driving component 22 to close or open through forward and reverse rotation.

[0047] Regarding the rotation driving component 22, refer to Figures 11 - 15, the rotation drive assembly 22 includes a left clamping plate 2201 and a right clamping plate 2202. Two ball nut seats 2203 are provided on both the left clamping plate 2201 and the right clamping plate 2202. The left clamping plate 2201 and the right clamping plate 2202 are installed between two double-headed ball screws 2103 through two groups of ball nut seats 2203. Semi-circular limit sliding grooves 2204 that fit each other are formed on the inner end faces of the left clamping plate 2201 and the right clamping plate 2202. Semi-circular rotating gear rings 2205 are slidably installed in the two semi-circular limit sliding grooves 2204, and rubber pads 2206 are fixedly connected to the inner side faces of the two semi-circular rotating gear rings 2205. A transmission gear 2207 and a first drive gear 2208 are respectively rotatably connected inside the right clamping plate 2202. A second servo motor 2209 for driving the first drive gear 2208 to rotate is installed at the rear end of the right clamping plate 2202. When the rotation drive assembly 22 is working, after the lens body 305 to be processed is pushed to the area between the left clamping plate 2201 and the right clamping plate 2202, the clamping assembly 21 simultaneously drives the left clamping plate 2201 and the right clamping plate 2202 to approach each other, thereby realizing clamping and fixing of the lens body 305 in this area. Since rubber pads 2206 are provided on the inner sides of the two semi-circular rotating gear rings 2205, the firmness and stability in the clamped state can be ensured. After the clamping and fixing are completed, at this time, the second servo motor 2209 drives the first drive gear 2208 to rotate, and then realizes transmission through the gear meshing between the first drive gear 2208, the transmission gear 2207, and the two semi-circular rotating gear rings 2205. Furthermore, the two semi-circular rotating gear rings 2205 can be driven to rotate in the circular sliding groove formed by the two semi-circular limit sliding grooves 2204, and then the lens body 305 to be processed can be driven to rotate synchronously. When the lens body 305 rotates, it can cooperate with the milling and polishing mechanism 5 for milling and processing.

[0048] In a further embodiment of the present invention, the transmission gear 2207 and the first drive gear 2208 mesh with each other, and the transmission gear 2207 can alternately mesh with the two semi-circular rotating gear rings 2205 during operation. By adopting the two semi-circular rotating gear rings 2205, on the one hand, they can slide in the two semi-circular limit sliding grooves 2204 to realize the rotation drive of the lens body 305. At the same time, the split structure design also enables the left clamping plate 2201 and the right clamping plate 2202 to open and close freely, facilitating the feeding and discharging of the lens body 305. This not only saves the material loading and unloading time but also improves the overall production and processing efficiency.

[0049] Regarding the pushing mechanism 3, refer to Figures 1 - 10, a feeding mechanism 3 is installed at the rear end of the top of the clamping and rotating mechanism 2, and a feeding rack 4 for feeding the feeding mechanism 3 is also installed on one side of the top of the clamping and rotating mechanism 2; the feeding mechanism 3 includes a first mounting seat 301 and a second mounting seat 302 fixed to the top of the clamping assembly 21. An inlet pipe 303 is fixedly installed between the first mounting seat 301 and the second mounting seat 302, and the front end of the inlet pipe 303 is in contact with the rotary drive assembly 22. An inlet port 304 is formed on the inlet pipe 303. A plurality of lens bodies 305 are placed in the inlet pipe 303. A servo cylinder 306 is fixedly installed at the rear end of the first mounting seat 301. The front end of the piston rod of the servo cylinder 306 is fixedly connected with a pusher head 307. The pusher head 307 slides in the inlet pipe 303. The feeding mechanism 3 is mainly used for servo feeding of a plurality of lens bodies 305. An inclined inlet port 304 is formed on the inlet pipe 303, which can accurately cooperate with the feeding rack 4. The lens bodies 305 conveyed in the feeding rack 4 can accurately roll into the inlet pipe 303 through the inlet port 304, so that a plurality of lens bodies 305 can be stacked at one time in the inlet pipe 303. During processing, the piston rod of the servo cylinder 306 will drive the pusher head 307 at the front end to move forward, and then the lens body 305 at the forefront can be pushed to the clamping position of the rotary drive assembly 22 during each processing, so as to be accurately clamped and fixed by the rotary drive assembly 22. After each push, the pusher head 307 will automatically reset, and then the lens bodies 305 in the feeding rack 4 can automatically roll to this vacant position, so as to realize continuous automated production and processing.

[0050] Regarding the milling, grinding and polishing mechanism 5, refer to Figures 16 - 17, at the front end of the top of the fixed frame 1, a milling, grinding and polishing mechanism 5 matching the material pushing mechanism 3 is fixedly installed. The milling, grinding and polishing mechanism 5 includes a cover body 501. On both sides of the rear end of the cover body 501, L-shaped brackets 510 are fixedly connected, and both of the two L-shaped brackets 510 are fixed on the top of the fixed frame 1. On the outer surface of the front end of the cover body 501, a moving guide rail 502 and a fixed rack 503 are respectively fixedly connected. A H-shaped sliding bracket 504 is slidably connected on the moving guide rail 502. At the bottom ends of both ends of the H-shaped sliding bracket 504, a lens milling unit 505 and a lens polishing unit 506 are respectively fixedly installed. A motor bracket 507 is also fixedly installed on the H-shaped sliding bracket 504. A third servo motor 508 is installed on the motor bracket 507. The output end of the third servo motor 508 is fixedly connected with a second driving gear 509 meshing with the fixed rack 503. The milling, grinding and polishing mechanism 5 is mainly used for the automatic milling and polishing of the lens body 305. During actual work, when the lens body 305 is clamped in place, the lens body 305 rotates at a high speed under the drive of the rotation drive assembly 22. At the same time, the third servo motor 508 also drives the second driving gear 509 to rotate. Through the meshing transmission between the second driving gear 509 and the fixed rack 503, the entire H-shaped sliding bracket 504 can be driven to slide horizontally on the moving guide rail 502. In the initial processing stage, the H-shaped sliding bracket 504 drives the lens milling unit 505 and the lens polishing unit 506 to move towards the side of the right clamping plate 2202 as a whole. At this time, the lens milling unit 505 also contacts the lens body 305 evenly. The milling grinding wheel rotating at a high speed on the lens milling unit 505 automatically mills and cuts the front end face of the lens body 305 until it is milled into shape. Further, after the milling is completed, the H-shaped sliding bracket 504 moves in the reverse direction and then moves slowly towards the left clamping plate 2201. At this time, the lens polishing unit 506 slowly contacts the formed lens body 305, and then uses the polishing wheel of the lens polishing unit 506 to polish the front end face of the lens body 305. After the polishing is completed, the third servo motor 508 drives the H-shaped sliding bracket 504 back to the initial position, thus completing the milling and polishing process of the lens body 305 once.

[0051] In this embodiment, further, regarding the lens milling unit 505 and the lens polishing unit 506, since they belong to the existing structural design and are mainly composed of conventional structures such as a housing, a motor, a transmission component, and an execution component (milling grinding wheel and polishing wheel), no detailed description is given here. In addition, in order to realize the milling processing of different end face shapes (including common concave-convex surfaces, spherical surfaces, and corrugated surfaces, etc.), different execution components can also be replaced according to requirements.

[0052] Regarding the spraying mechanism 6, refer to Figures 7 - 9, a spraying mechanism 6 for spraying water during milling and polishing is also installed on the milling and polishing mechanism 5; the spraying mechanism 6 includes a liquid supply pipe 601 installed on the cover body 501, and an atomizing nozzle 602 is installed at the bottom of the front end of the liquid supply pipe 601. During processing, the top end of the liquid supply pipe 601 is connected to the cutting fluid conveying pipeline, so that the cutting fluid can enter the liquid supply pipe 601, and then be atomized and sprayed out through the atomizing nozzle 602 at the bottom end, so that the cutting fluid can be automatically sprayed during the milling and polishing process of the milling and polishing mechanism 5, thereby ensuring the smooth progress of the milling process.

[0053] Regarding the blanking guiding mechanism 7, refer to Figures 1 - 8 , a blanking guiding mechanism 7 is also installed between the milling and polishing mechanism 5 and the fixed frame 1. An automatic conveying mechanism 8 is provided at the front end of the fixed frame 1. The blanking guiding mechanism 7 includes a material guiding frame 701 rotatably connected to the front end of the cover body 501. Rotating supports 702 are fixedly installed at the rear end of the material guiding frame 701 and the front end of the fixed frame 1 respectively. A driving cylinder 703 is installed between the two rotating supports 702 for driving the material guiding frame 701 to rotate. The blanking guiding mechanism 7 is mainly used for guiding and conveying the finished optical lens. In the milling and processing state, the material guiding frame 701 is close to the vertical state, so that the cutting fluid sewage generated during the milling process can be guided to the sewage collection box 10 below. After the milling and processing is completed, the piston rod of the driving cylinder 703 will extend, so that the material guiding frame 701 can be driven to rotate on the cover body 501, so that the bottom end of the material guiding frame 701 faces the top of the automatic conveying mechanism 8. At this time, when the rotation driving assembly 22 releases the clamping of the lens body 305, the processed lens body 305 will slide down along the material guiding frame 701 to above the automatic conveying mechanism 8, and finally the automatic conveying mechanism 8 will convey it to the designated blanking station.

[0054] A controller 9 is fixedly installed on one side of the top of the fixed frame 1. The controller 9 is used for the integrated control of the whole machine, thereby ensuring the compact operation of each actuator. At the same time, the corresponding parameters of the actuator can also be digitally adjusted according to the actual processing needs. A sewage collection box 10 for collecting sewage is also placed at the front end of the fixed frame 1. The sewage collection box 10 is mainly used for centrally collecting the sewage generated during the milling process.

[0055] The working principle of this embodiment is as follows. During work, the lens body 305 conveyed in the loading rack 4 can accurately roll into the feeding pipeline 303 through the feeding port 304, and the piston rod of the servo cylinder 306 will drive the pushing head 307 at the front end to move forward, so that the lens body 305 at the frontmost end can be pushed to the clamping position of the rotation driving assembly 22 during each processing;

[0056] Subsequently, the clamping assembly 21 drives the rotary drive assembly 22 to move synchronously, and then the rotary drive assembly 22 is used to clamp and fix the lens body 305 at the forefront position. After stable clamping, the second servo motor 2209 will drive the first drive gear 2208 to rotate, and then achieve transmission through the meshing between gears, thereby driving the lens body 305 to be processed to rotate synchronously;

[0057] At the same time, the third servo motor 508 also drives the second drive gear 509 to rotate. Through the meshing transmission between the second drive gear 509 and the fixed rack 503, the entire H-shaped sliding bracket 504 can be driven to slide horizontally on the moving guide rail 502. In the initial processing stage, the H-shaped sliding bracket 504 drives the lens milling unit 505 and the lens polishing unit 506 to move towards the side of the right clamping plate 2202 as a whole. At this time, the lens milling unit 505 also contacts the lens body 305 at a constant speed. The high-speed rotating milling wheel on the lens milling unit 505 automatically mills and cuts the front end face of the lens body 305 until it is milled into shape; after milling is completed, the H-shaped sliding bracket 504 moves in the reverse direction and slowly moves towards the left clamping plate 2201. At this time, the lens polishing unit 506 slowly contacts the formed lens body 305, and then the polishing wheel of the lens polishing unit 506 is used to polish the front end face of the lens body 305. After polishing is completed, the third servo motor 508 drives the H-shaped sliding bracket 504 back to the initial position;

[0058] After the milling process is completed, the piston rod of the driving cylinder 703 extends, which can drive the material guiding frame 701 to rotate on the housing 501, so that the bottom end of the material guiding frame 701 faces the top of the automatic conveying mechanism 8. At this time, when the rotary drive assembly 22 releases the clamping of the lens body 305, the processed lens body 305 slides down along the material guiding frame 701 to above the automatic conveying mechanism 8, and finally the automatic conveying mechanism 8 conveys it to the designated blanking station.

[0059] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An automatic milling machine for optical lenses, comprising a fixed frame (1), characterized in that: A clamping and rotating mechanism (2) is fixedly mounted on the top of the fixed frame (1), wherein the clamping and rotating mechanism (2) comprises a clamping component (21) and a rotating driving component (22), wherein the clamping component (21) is used to drive the rotating driving component (22) to automatically open and close; A material pushing mechanism (3) is installed at the rear end of the top of the clamping and rotating mechanism (2), and a material loading rack (4) for feeding materials to the material pushing mechanism (3) is also installed at one side of the top of the clamping and rotating mechanism (2); A milling and polishing mechanism (5) matching the material pushing mechanism (3) is fixedly mounted on the front end of the top of the fixed frame (1); a spraying mechanism (6) for spraying water during the milling process is also mounted on the milling and polishing mechanism (5); A material discharge guide mechanism (7) is also installed between the milling and polishing mechanism (5) and the fixed frame (1), and an automatic conveying mechanism (8) is provided at the front end of the fixed frame (1).

2. The automatic milling machine for optical lenses according to claim 1, characterized in that: The clamping assembly (21) comprises a support plate (2101) fixed to the top of a fixed frame (1); the front end of the top of the support plate (2101) is fixedly connected to a support frame (2102); two parallel double-headed ball screws (2103) are rotatably connected inside the support frame (2102); a first servo motor (2104) is also installed in the middle of one end of the support frame (2102); one end of the two double-headed ball screws (2103) is installed with a single-groove pulley (2105); the output end of the first servo motor (2104) is installed with a double-groove pulley (2106); and two transmission belts (2107) are installed between the double-groove pulley (2106) and the two single-groove pulleys (2105).

3. The automatic milling machine for optical lenses according to claim 2, characterized in that: The rotary drive assembly (22) comprises a left clamping plate (2201) and a right clamping plate (2202), and the left clamping plate (2201) and the right clamping plate (2202) are each provided with two ball nut seats (2203). The left clamping plate (2201) and the right clamping plate (2202) are installed between two double-headed ball screws (2103) via two sets of ball nut seats (2203). The inner end surfaces of the left clamping plate (2201) and the right clamping plate (2202) are each provided with semicircular limiting grooves (2203) that fit in with each other. 04), a semicircular rotating gear ring (2205) is slidably installed in the two semicircular limiting grooves (2204), and a rubber pad (2206) is fixedly connected to the inner side surface of the two semicircular rotating gear rings (2205), and a transmission gear (2207) and a first driving gear (2208) are rotatably connected in the right clamping plate (2202), and a second servo motor (2209) for driving the first driving gear (2208) to rotate is installed at the rear end of the right clamping plate (2202).

4. The automatic milling machine for optical lenses according to claim 3, characterized in that: The transmission gear (2207) and the first driving gear (2208) are meshed with each other, and the transmission gear (2207) can alternately mesh with the two semicircular rotating gear rings (2205) when working.

5. The automatic milling machine for optical lenses according to claim 1, characterized in that: The pushing mechanism (3) comprises a first mounting seat (301) and a second mounting seat (302) fixed to the top of the clamping assembly (21); a feeding pipe (303) is fixedly mounted between the first mounting seat (301) and the second mounting seat (302); a front end of the feeding pipe (303) is in contact with the rotary drive assembly (22); a feeding port (304) is provided on the feeding pipe (303); a plurality of lens bodies (305) are placed in the feeding pipe (303); a servo cylinder (306) is fixedly mounted at the rear end of the first mounting seat (301); a pushing head (307) is fixedly connected to the front end of the piston rod of the servo cylinder (306); and the pushing head (307) slides in the feeding pipe (303).

6. The automatic milling machine for optical lenses according to claim 1, characterized in that: The milling and polishing mechanism (5) comprises a cover body (501), the front end outer surface of the cover body (501) being fixedly connected to a movable guide rail (502) and a fixed rack (503), the movable guide rail (502) being slidably connected to an H-shaped sliding bracket (504), the bottoms of both ends of the H-shaped sliding bracket (504) being fixedly mounted to a lens milling unit (505) and a lens polishing unit (506), the H-shaped sliding bracket (504) being further fixedly mounted to a motor bracket (507), the motor bracket (507) being mounted to a third servo motor (508), the output end of the third servo motor (508) being fixedly connected to a second driving gear (509) meshing with the fixed rack (503).

7. The automatic milling machine for optical lenses according to claim 6, characterized in that: L-shaped brackets (510) are fixedly connected to both sides of the rear end of the cover body (501), and the two L-shaped brackets (510) are fixed to the top of the fixed frame (1).

8. The automatic milling machine for optical lenses according to claim 6, characterized in that: The spray mechanism (6) comprises a liquid supply pipe (601) mounted on the cover body (501), and an atomizing nozzle (602) is mounted at the bottom of the front end of the liquid supply pipe (601).

9. The automatic milling machine for optical lenses according to claim 8, characterized in that: The material unloading guide mechanism (7) comprises a material guide frame (701) rotatably connected to the front end of the cover body (501), a rotating support (702) being fixedly mounted at the rear end of the material guide frame (701) and the front end of the fixed frame (1), and a driving cylinder (703) being mounted between the two rotating supports (702) for driving the material guide frame (701) to rotate.

10. The automatic milling machine for optical lenses according to claim 1, characterized in that: A controller (9) is fixedly mounted on one side of the top of the fixed frame (1), and a sewage collection box (10) for collecting sewage is also placed at the front end of the fixed frame (1).

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