Spectacle lens processing device and processing method

Abstract

The invention relates to the technical field of spectacle lens processing, and discloses a spectacle lens processing device and processing method. Comprising a cutter handle, a cutter disc, a cutter groove and a diamond cutter, the cutter disc is a conical cutter disc, the cutter handle is arranged in the center of the bottom of the cutter disc, the cutter groove is formed in the inclined waist of the cutter disc, and the diamond cutter is arranged in the cutter groove in an interference fit mode; the grinding and polishing mechanism comprises a rack, a controller, a lifting air cylinder, a polishing carrying disc, a polishing disc, a limiting mechanism, a rotating motor and a magnetic mechanism, the controller, the lifting air cylinder, the limiting mechanism and the rotating motor are all installed on the rack, the polishing carrying disc is installed at the lifting end of the lifting air cylinder, the polishing disc is installed at the driving end of the rotating motor, and the magnetic mechanism is arranged on the polishing disc. The limiting mechanism is arranged near the polishing disc, and the control ends of the lifting air cylinder, the limiting mechanism and the rotating motor are electrically connected with the control end of the controller. According to the spectacle lens processing technology, the lenses are smoother.

Description

Technical Field

[0001] The present invention relates to the technical field of eyeglass lens processing, and in particular to an eyeglass lens processing device and a method. Background Art

[0002] Glasses are simple optical devices made to correct vision or protect eyes, consisting of lenses and frames. Lenses are the windows through which eyes observe objects, and their quality directly affects the clarity of people's eyes in observing objects.

[0003] At present, during the production and processing of lenses, manual polishing and grinding operations are usually required. The grinding wheel on the market has a relatively simple structure and needs to be replaced with a cloth wheel when polishing is required, which greatly reduces the processing efficiency of the lenses. In addition, the lenses processed on the market have low finish and poor polishing effect. During polishing, the polishing liquid often agglomerates, affecting the lens polishing. In addition, the agglomerated polishing liquid will aggravate the temperature rise of the lens polishing, affecting the polishing quality. In addition, the lens embryo has angular lines, which need to be well cut off to ensure that the edge of the lens is smooth and operable. The strength of the existing market milling cutters is not good, and the angular lines are easily damaged during processing.

[0004] Therefore, in view of the above problems, the existing eyeglass lens processing technology needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to solve the problems of low polishing degree, poor polishing effect and incomplete cutting of corners and edges in existing eyeglass lens processing technology. Through the design of eyeglass lens processing technology, the edge milling mechanism and grinding and polishing mechanism are adopted, and then the edge milling machine and the edge milling cutter (composed of a handle, a cutter disc, a cutter groove and a diamond cutter) are matched, and the frame, controller, lifting cylinder, polishing carrier, polishing disc, limit mechanism, rotating motor and grinding and polishing mechanism of magnetic mechanism, as well as the matched processing technology, the edge milling cutter strength can be enhanced, the corners and edges can be cut better, the polishing degree is higher and the lens finish is better.

[0006] The technical solution of the present invention is as follows:

[0007] A processing device for eyeglass lenses, the processing device comprising: a milling mechanism and a grinding and polishing mechanism, the milling mechanism is used to perform an edge milling operation on the eyeglass lens, and the grinding and polishing mechanism is used to perform a grinding and polishing operation on the eyeglass lens;

[0008] Wherein, the edge milling mechanism comprises an edge milling machine and an edge milling cutter, the edge milling cutter is installed on a tool mounting fixture of the edge milling machine, and the edge milling machine is used to operate the edge milling cutter;

[0009] The edge milling cutter comprises a cutter handle, a cutter disc, a cutter groove and a diamond cutter. The cutter disc is a conical cutter disc. The cutter handle is provided at the bottom center of the cutter disc. The cutter groove is provided on the oblique waist of the cutter disc. The diamond cutter is interference-fitted in the cutter groove. The cutter handle, the cutter disc and the cutter groove are integrally formed.

[0010] Among them, the grinding and polishing mechanism includes a frame, a controller, a lifting cylinder, a polishing carrier, a polishing disk, a limiting mechanism, a rotating motor and a magnetic mechanism. The controller, lifting cylinder, limiting mechanism and rotating motor are all installed on the frame. The lifting end of the lifting cylinder is installed with the polishing carrier, the driving end of the rotating motor is installed with the polishing disk, the polishing disk is provided with the magnetic mechanism, the limiting mechanism is arranged near the polishing disk, and the limiting mechanism is used to limit the lens to be polished on the polishing disk. The control end of the lifting cylinder, the control end of the limiting mechanism and the control end of the rotating motor are respectively electrically connected to the control end of the controller.

[0011] Furthermore, a tantalum carbide coating is deposited on the surface of the diamond knife.

[0012] Furthermore, the thickness of the tantalum carbide coating is selected to be 0.5 μm-2 μm.

[0013] Furthermore, the top angle of the cutter disc is selected to be 130°-140°.

[0014] Furthermore, the length of the knife groove is not less than the length of the diamond knife.

[0015] Furthermore, a plurality of micro-nano protrusions are provided on the inner side of the knife groove.

[0016] Furthermore, the micro-nano protrusions are distributed in a matrix manner on the inner side of the knife groove.

[0017] Furthermore, the size of the micro-nano protrusions close to the outer surface of the knife groove is smaller than the size of the micro-nano protrusions far from the outer surface of the knife groove.

[0018] Furthermore, the sizes of the micro-nano protrusions are selected to increase uniformly step by step.

[0019] Furthermore, the micro-nano protrusions are truncated cone-shaped micro-nano protrusions.

[0020] Furthermore, the micro-nano protrusions are arranged on two inner side walls of the knife groove.

[0021] Furthermore, the micro-nano protrusions and the knife grooves are integrally formed.

[0022] Furthermore, the knife handle, knife disc and knife groove are all made of metal.

[0023] Furthermore, the limiting mechanism includes a limiting cylinder and a limiting plate, the limiting cylinder is installed on the frame, the limiting plate is installed on the driving end of the limiting cylinder, the limiting plate is used to limit the lens to be polished, and the control end of the limiting cylinder is electrically connected to the control end of the controller.

[0024] Furthermore, the polishing carrier includes a carrier motor and a suction cup, the carrier motor is installed at the lifting end of the lifting cylinder, the suction cup is installed at the driving end of the carrier motor, the control end of the carrier motor is electrically connected to the control end of the controller, and the carrier motor is used to drive the lens to be polished that is sucked by the suction cup.

[0025] Furthermore, the magnetic mechanism is a magnet-type magnetic mechanism.

[0026] Furthermore, the magnet-type magnetic mechanism is selected from N50 grade permanent magnet or N52 grade permanent magnet.

[0027] Furthermore, the magnetic mechanism includes a central permanent magnet and an edge permanent magnet, the central permanent magnet is arranged at the center of the polishing disk, and the edge permanent magnet is arranged at the edge of the polishing disk, and a magnetic field is formed between the central permanent magnet and the edge permanent magnet.

[0028] Furthermore, the limiting plate is an arc-shaped limiting plate.

[0029] Furthermore, the upper surfaces of the central permanent magnet and the edge permanent magnet are both lower than the upper surface of the polishing disc.

[0030] Furthermore, a method for processing a spectacle lens is provided, wherein the processing steps are as follows:

[0031] Step 1: Assembly of the processing device

[0032] A milling machine, a milling cutter, a frame, a controller, a lifting cylinder, a polishing carrier, a polishing disc, a limit mechanism, a rotating motor and a magnetic mechanism are selected, and the milling cutter is stably installed on the tool fixture of the milling machine. The milling cutter is composed of a tool handle, a tool disc, a tool groove and a diamond cutter, and the tool disc is a conical tool disc, a tool handle is provided at the bottom center of the tool disc, a tool groove is provided on the oblique waist of the tool disc, and a diamond cutter is interference-fitted in the tool groove. The tool handle, the tool disc and the tool groove are integrally formed to produce a milling mechanism;

[0033] The controller, lifting cylinder, limiting mechanism and rotating motor are all installed on the frame, the lifting end of the lifting cylinder is installed with a polishing carrier, the driving end of the rotating motor is installed with a polishing disc, the polishing disc is provided with a magnetic mechanism, the limiting mechanism is arranged near the polishing disc, and the limiting mechanism is used to limit the lens to be polished on the polishing disc, the control end of the lifting cylinder, the control end of the limiting mechanism and the control end of the rotating motor are respectively electrically connected to the control end of the controller, so as to produce a grinding and polishing mechanism;

[0034] Step 2: Milling the edge of the lens

[0035] Select the milling mechanism of step 1 and the lens to be milled, place the lens to be milled on the stage of the milling mechanism and under the milling cutter, start the milling machine to operate the milling cutter, the milling cutter will mill the edge of the lens to be milled to cut off the corner line of the lens to be milled, after the corner line is milled, a milled eyeglass lens is prepared;

[0036] Step 3: Rough grinding of the lenses

[0037] Select the milled eyeglass lens of step 2, and then select the grinding and polishing mechanism of step 1, install the milled eyeglass lens on the polishing carrier, stick 2000-2500 mesh frosting paper on the polishing disk, control the lifting cylinder by the controller to send the milled eyeglass lens to the rough grinding work position and contact the frosting paper, control the limiting mechanism by the controller to the edge of the milled eyeglass lens, and abut the milled eyeglass lens to stabilize the milled eyeglass lens, control the rotating motor by the controller to drive the polishing disk to rotate, and then rough grind the milled eyeglass lens, after rough grinding for 15 minutes, change the other side of the milled eyeglass lens for rough grinding, and also rough grind for 15 minutes to prepare a rough-ground eyeglass lens;

[0038] Step 4: Polishing of the lenses

[0039] Select the rough-ground eyeglass lens of step three, and then prepare a polishing liquid. The polishing liquid selects carbonyl iron powder, diamond abrasive and deionized water, and the three are evenly mixed to prepare a polishing liquid. Then the polishing liquid is slowly added to the polishing disk. The magnetic mechanism will form a magnetic field on the surface of the polishing disk, and will rearrange and combine the polishing liquid. More polishing liquid will gather in the area with strong magnetic field, and less polishing liquid will gather in the area with weak magnetic field. The controller controls the lifting cylinder to send the rough-ground eyeglass lens to the polishing work position and contact it with the polishing disk and the polishing liquid. The controller controls the limiting mechanism to the edge of the rough-ground eyeglass lens and abuts against the rough-ground eyeglass lens to stabilize the rough-ground eyeglass lens. The controller controls the rotating motor to drive the polishing disk to rotate, and then polish the rough-ground eyeglass lens. The polishing speed of the polishing disk is 500 rpm. After polishing for 10 minutes, the other side of the rough-ground eyeglass lens is polished. The polishing speed of the polishing disk is also 500 rpm. After polishing for 10 minutes, a polished eyeglass lens is prepared.

[0040] Furthermore, in step 4, the carbonyl iron powder is selected from micron-sized carbonyl iron powder.

[0041] Furthermore, in step 4, the particle size of the carbonyl iron powder is selected to be 1 μm-2 μm.

[0042] Furthermore, in step 4, the diamond abrasive is selected from nano-scale diamond abrasive.

[0043] Furthermore, in step 4, the particle size of the diamond abrasive is selected to be 100nm-150nm.

[0044] Beneficial Effects

[0045] The present invention, through the design of the eyeglass lens processing technology, adopts the edge milling mechanism and the grinding and polishing mechanism, and then cooperates with the edge milling machine and the edge milling cutter (composed of a cutter handle, a cutter disc, a cutter groove and a diamond cutter), and the grinding and polishing mechanism of the frame, controller, lifting cylinder, polishing carrier, polishing disc, limit mechanism, rotating motor and magnetic mechanism, and the coordinated processing technology, can realize the enhancement of the edge milling cutter strength, better cutting of the angular lines, higher polishing degree and better lens finish, etc. The use of magnetic auxiliary polishing lenses can help the balanced polishing of the lenses, and can also help the alternating polishing of cooling-heating of the lenses (the position without polishing liquid is equivalent to cooling, and the position with polishing liquid is equivalent to heating), ensuring that the polishing temperature of the lenses is not too high to affect the optical effect of the lenses, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 The present invention is a schematic structural diagram of a processing device and a processing method for eyeglass lenses.

[0047] Figure 2 The present invention is a schematic structural diagram of another viewing angle of a processing device and a processing method for eyeglass lenses.

[0048] Figure 3 The present invention is a schematic diagram of the front view structure of a processing device and a processing method for eyeglass lenses.

[0049] Figure 4 The present invention is a schematic diagram of a micro-nano protrusion structure of a processing device and a processing method for an eyeglass lens.

[0050] Figure 5 The present invention is a schematic diagram of the structure of a polishing disk of a lens processing device.

[0051] Figure 6 This is a photograph of a polished eyeglass lens processed by an eyeglass lens processing device of the present invention.

[0052] Figure 7 This is a SEM image of a polished eyeglass lens processed by an eyeglass lens processing device of the present invention.

[0053] Figure 8 This is a SEM picture of the polishing liquid processed by the processing device for eyeglass lenses of the present invention.

[0054] Figure numbers: 1. Frame; 2. Lifting cylinder; 3. Suction cup; 4. Plate carrier motor; 5. Warning device; 6. Limit mechanism; 7. Polishing disc; 8. Controller; 01. Knife disc; 02. Knife handle; 03. Knife groove; 04. Diamond knife; 71. Magnet; 72. Polishing liquid; 73. Lens to be polished. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0056] See also Figure 1-Figure 5 As shown, the present invention provides a processing device and a processing method for eyeglass lenses; wherein, the basic embodiment:

[0057] A processing device for eyeglass lenses, the processing device comprising: an edge milling mechanism and a grinding and polishing mechanism, the edge milling mechanism is used to perform an edge milling operation on the eyeglass lens, and the grinding and polishing mechanism is used to perform a grinding and polishing operation on the eyeglass lens;

[0058] The edge milling mechanism includes an edge milling machine and an edge milling cutter. The edge milling cutter is installed on a tool fixture of the edge milling machine. The edge milling machine is used to operate the edge milling cutter.

[0059] The edge milling cutter includes: a handle 02, a cutter disc 01, a cutter groove 03 and a diamond cutter 04. The handle 02 is a cylindrical handle. The handle 02, the cutter disc 01 and the cutter groove 03 are all made of metal. The cutter disc 01 is a conical cutter disc 01. The handle 02 is provided at the bottom center of the cutter disc 01. The cutter groove 03 is provided on the oblique waist of the cutter disc 01. The diamond cutter 04 is interference-fitted in the cutter groove 03. The handle 02, the cutter disc 01 and the cutter groove 03 are integrally formed. A tantalum carbide coating is deposited on the surface of the diamond cutter 04. The thickness of the tantalum carbide coating is selected from 0.5 μm to 2 μm. The top angle of the cutter disc 01 is selected from Take 136°; the length of the knife groove 03 is not less than the length of the diamond knife 04; a plurality of micro-nano protrusions are arranged on the inner side of the knife groove 03, and the micro-nano protrusions are distributed in a matrix on the two inner side walls of the knife groove 03, and are symmetrically arranged, the size of the micro-nano protrusions close to the outer surface of the knife groove 03 is smaller than the size of the micro-nano protrusions far from the outer surface of the knife groove 03, and the size of the micro-nano protrusions is selected to increase uniformly step by step, the micro-nano protrusions are selected to be truncated cone-shaped micro-nano protrusions, the micro-nano protrusions and the knife groove 03 are integrally formed, and the size of the micro-nano protrusions is selected to increase uniformly step by step from 1 μm at a rate of 50 nm / step to 10 μm;

[0060] The grinding and polishing mechanism comprises a frame 1, a controller 8, a lifting cylinder 2, a polishing carrier, a polishing disk 7, a limiting mechanism 6, a rotating motor and a magnetic mechanism. The controller 8, the lifting cylinder 2, the limiting mechanism 6 and the rotating motor are all installed on the frame 1. The lifting end of the lifting cylinder 2 is installed with a polishing carrier, the driving end of the rotating motor is installed with a polishing disk 7, a magnetic mechanism is provided on the polishing disk 7, the limiting mechanism 6 is arranged near the polishing disk 7, and the limiting mechanism 6 is used to limit the lens 73 to be polished on the polishing disk 7, and the control end of the lifting cylinder 2, the control end of the limiting mechanism 6 and the control end of the rotating motor are electrically connected to the control end of the controller 8 respectively;

[0061] The limiting mechanism 6 includes a limiting cylinder and a limiting plate. The limiting cylinder is mounted on the frame 1, and the limiting plate is mounted on the driving end of the limiting cylinder. The limiting plate is used to limit the polishing lens 73. The control end of the limiting cylinder is electrically connected to the control end of the controller 8. The limiting plate is an arc-shaped limiting plate.

[0062] The polishing carrier includes a carrier motor 4 and a suction cup 3. The carrier motor 4 is installed at the lifting end of the lifting cylinder 2. The suction cup 3 is installed at the driving end of the carrier motor 4. The control end of the carrier motor 4 is electrically connected to the control end of the controller 8. The carrier motor 4 is used to drive the lens 73 to be polished that is sucked by the suction cup 3.

[0063] Among them, the magnetic mechanism selects a magnet-type magnetic mechanism; the magnet-type magnetic mechanism selects N50-level permanent magnet 71 or N52-level permanent magnet 71; the magnetic mechanism includes a central permanent magnet and an edge permanent magnet, the central permanent magnet is arranged at the central part of the polishing disk 7, and the edge permanent magnet is arranged at the edge of the polishing disk 7, and a magnetic field is formed between the central permanent magnet and the edge permanent magnet, and the central permanent magnet and the edge permanent magnet rotate synchronously with the rotation of the polishing disk; the upper surfaces of the central permanent magnet and the edge permanent magnet are both lower than the upper surface of the polishing disk 7. Such an arrangement can prevent the central permanent magnet and the edge permanent magnet from affecting the polishing of the polishing disk, and the polishing disk is a complete circular disk;

[0064] Wherein, a warning device 5 is also installed on the frame 1 .

[0065] Furthermore, a method for processing a spectacle lens is provided, and the processing steps of the method are as follows:

[0066] Step 1: Assembly of the processing device

[0067] A milling machine, a milling cutter, a frame, a controller, a lifting cylinder, a polishing carrier, a polishing disc, a limit mechanism, a rotating motor and a magnetic mechanism are selected, and the milling cutter is stably installed on the tool fixture of the milling machine. The milling cutter is composed of a tool handle, a tool disc, a tool groove and a diamond cutter, and the tool disc is a conical tool disc, a tool handle is provided at the bottom center of the tool disc, a tool groove is provided on the oblique waist of the tool disc, and a diamond cutter is interference-fitted in the tool groove. The tool handle, the tool disc and the tool groove are integrally formed to produce a milling mechanism;

[0068] The controller, lifting cylinder, limiting mechanism and rotating motor are all installed on the frame, the lifting end of the lifting cylinder is installed with a polishing carrier, the driving end of the rotating motor is installed with a polishing disc, the polishing disc is provided with a magnetic mechanism, the limiting mechanism is arranged near the polishing disc, and the limiting mechanism is used to limit the lens to be polished on the polishing disc, the control end of the lifting cylinder, the control end of the limiting mechanism and the control end of the rotating motor are respectively electrically connected to the control end of the controller, so as to produce a grinding and polishing mechanism;

[0069] Step 2: Milling the edge of the lens

[0070] Select the milling mechanism of step 1 and the lens to be milled, place the lens to be milled on the stage of the milling mechanism and under the milling cutter, start the milling machine to operate the milling cutter, the milling cutter will mill the edge of the lens to be milled to cut off the corner line of the lens to be milled, after the corner line is milled, a milled eyeglass lens is prepared;

[0071] Step 3: Rough grinding of the lenses

[0072] Select the milled eyeglass lens of step 2, and then select the grinding and polishing mechanism of step 1, install the milled eyeglass lens on the polishing carrier, stick 2000-2500 mesh frosting paper on the polishing disk, control the lifting cylinder by the controller to send the milled eyeglass lens to the rough grinding work position and contact the frosting paper, control the limiting mechanism by the controller to the edge of the milled eyeglass lens, and abut the milled eyeglass lens to stabilize the milled eyeglass lens, control the rotating motor by the controller to drive the polishing disk to rotate, and then rough grind the milled eyeglass lens, after rough grinding for 15 minutes, change the other side of the milled eyeglass lens for rough grinding, and also rough grind for 15 minutes to prepare a rough-ground eyeglass lens;

[0073] Step 4: Polishing of the lenses

[0074] Select the rough-ground eyeglass lens of step 3, and then prepare a polishing liquid 72. The polishing liquid 72 is selected from carbonyl iron powder, diamond abrasive and deionized water. The three are evenly mixed to prepare the polishing liquid 72. Then the polishing liquid is slowly added to the polishing disk. The magnetic mechanism will form a magnetic field on the surface of the polishing disk, and will rearrange and combine the polishing liquid. The area with a strong magnetic field gathers more polishing liquid, and the area with a weak magnetic field gathers less polishing liquid. The controller controls the lifting cylinder to send the rough-ground eyeglass lens to the polishing work position and contact it with the polishing disk and the polishing liquid. The controller controls the limiting mechanism to the edge of the rough-ground eyeglass lens and abuts against the rough-ground eyeglass lens to stabilize the rough-ground eyeglass lens. The controller controls the rotating motor to drive the polishing disk to rotate, and then polish the rough-ground eyeglass lens. The polishing speed of the polishing disk is 500 rpm. After polishing for 10 minutes, the other side of the rough-ground eyeglass lens is changed for polishing. The polishing speed of the polishing disk is also 500 rpm. After polishing for 10 minutes, a polished eyeglass lens is prepared.

[0075] Among them, in step 4, the carbonyl iron powder is selected to be micron-grade carbonyl iron powder; and the particle size of the carbonyl iron powder is selected to be 1μm-2μm; in step 4, the diamond abrasive is selected to be nano-grade diamond abrasive, and the particle size of the diamond abrasive is selected to be 100nm-150nm.

[0076] The specific implementation principle of the present invention is as follows: in actual production, eyeglasses are generally cut out of lens blanks on optical glass or optical PC sheets by cutting. Such lens blanks have edge angular lines, and need to be cut off the angular lines. The angular lines of the lens blanks are cut off by using a milling machine and a milling cutter; the roughness of the lens blanks is very large, so they need to be polished. Since the surface flatness of the lens blanks is uneven and there are many scratches after cutting, they are first polished to trim their surfaces; then they are polished by a polishing machine, using a magnetic polishing liquid and a magnetic polishing disk. Such a magnetic polishing disk will form a plurality of microscopic polishing brushes. Due to the different magnetic field strengths, the polishing brushes will form a polishing brush with more polishing liquid gathered in the area with a strong magnetic field, and a polishing brush with less polishing liquid gathered in the area with a weak magnetic field. Such an intermittent polishing brush is helpful for the polishing operation of the lens, and will not cause a sharp increase in the polishing friction temperature of the lens due to the presence of a large amount of polishing liquid. It also avoids the uneven impact of a large amount of polishing liquid on the lens, thereby achieving balanced polishing of the lens.

[0077] By testing the lenses processed by the technology of the present invention, Figure 6 This is a photo of the polished eyeglass lens. It can be seen that the lens is smooth and has no marks, and is very transparent. Figure 7 This is the SEM image of the processed polished eyeglass lens. It can be seen that the surface morphology of the lens is smooth from a microscopic perspective, with almost no polishing scratches. Figure 8 This is the SEM image of the polishing liquid used during processing. It can be seen that the nano-scale diamonds attached to the carbonyl iron powder will be arranged according to the magnetic field, which helps in polishing the lens.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for eyeglass lenses, characterized in that: The processing device comprises: a milling mechanism and a grinding and polishing mechanism, wherein the milling mechanism is used to perform milling operations on the spectacle lenses, and the grinding and polishing mechanism is used to perform grinding and polishing operations on the spectacle lenses; Wherein, the edge milling mechanism comprises an edge milling machine and an edge milling cutter, the edge milling cutter is installed on a tool mounting fixture of the edge milling machine, and the edge milling machine is used to operate the edge milling cutter; The edge milling cutter comprises a cutter handle, a cutter disc, a cutter groove and a diamond cutter. The cutter disc is a conical cutter disc. The cutter handle is provided at the bottom center of the cutter disc. The cutter groove is provided on the oblique waist of the cutter disc. The diamond cutter is interference-fitted in the cutter groove. The cutter handle, the cutter disc and the cutter groove are integrally formed. Among them, the grinding and polishing mechanism includes a frame, a controller, a lifting cylinder, a polishing carrier, a polishing disk, a limiting mechanism, a rotating motor and a magnetic mechanism. The controller, lifting cylinder, limiting mechanism and rotating motor are all installed on the frame. The lifting end of the lifting cylinder is installed with the polishing carrier, the driving end of the rotating motor is installed with the polishing disk, the polishing disk is provided with the magnetic mechanism, the limiting mechanism is arranged near the polishing disk, and the limiting mechanism is used to limit the lens to be polished on the polishing disk. The control end of the lifting cylinder, the control end of the limiting mechanism and the control end of the rotating motor are respectively electrically connected to the control end of the controller.

2. The eyeglass lens processing device according to claim 1, characterized in that: A tantalum carbide coating is deposited on the surface of the diamond knife.

3. The eyeglass lens processing device according to claim 2, characterized in that: The top angle of the cutter disc is selected to be 130°-140°.

4. The eyeglass lens processing device according to claim 1, characterized in that: The limiting mechanism includes a limiting cylinder and a limiting plate, wherein the limiting cylinder is mounted on the frame, and the limiting plate is mounted on the driving end of the limiting cylinder. The limiting plate is used to limit the lens to be polished, and the control end of the limiting cylinder is electrically connected to the control end of the controller.

5. The eyeglass lens processing device according to claim 1, characterized in that: The polishing carrier includes a carrier motor and a suction cup. The carrier motor is installed at the lifting end of the lifting cylinder. The suction cup is installed at the driving end of the carrier motor. The control end of the carrier motor is electrically connected to the control end of the controller. The carrier motor is used to drive the lens to be polished that is sucked by the suction cup.

6. The eyeglass lens processing device according to claim 1, characterized in that: The magnetic mechanism is a magnet-type magnetic mechanism.

7. The eyeglass lens processing device according to claim 6, characterized in that: The magnetic mechanism includes a central permanent magnet and an edge permanent magnet. The central permanent magnet is arranged at the central part of the polishing disk, and the edge permanent magnet is arranged at the edge of the polishing disk. A magnetic field is formed between the central permanent magnet and the edge permanent magnet.

8. The eyeglass lens processing device according to claim 4, characterized in that: The limiting plate is an arc-shaped limiting plate.

9. The eyeglass lens processing device according to claim 7, characterized in that: The upper surfaces of the central permanent magnet and the edge permanent magnet are both lower than the upper surface of the polishing disc.

10. A method for processing a spectacle lens, characterized in that: The processing method steps are as follows: Step 1: Assembly of the processing device A milling machine, a milling cutter, a frame, a controller, a lifting cylinder, a polishing carrier, a polishing disc, a limit mechanism, a rotating motor and a magnetic mechanism are selected, and the milling cutter is stably installed on the tool fixture of the milling machine. The milling cutter is composed of a tool handle, a tool disc, a tool groove and a diamond cutter, and the tool disc is a conical tool disc, a tool handle is provided at the bottom center of the tool disc, a tool groove is provided on the oblique waist of the tool disc, and a diamond cutter is interference-fitted in the tool groove. The tool handle, the tool disc and the tool groove are integrally formed to produce a milling mechanism; The controller, lifting cylinder, limiting mechanism and rotating motor are all installed on the frame, the lifting end of the lifting cylinder is installed with a polishing carrier, the driving end of the rotating motor is installed with a polishing disc, the polishing disc is provided with a magnetic mechanism, the limiting mechanism is arranged near the polishing disc, and the limiting mechanism is used to limit the lens to be polished on the polishing disc, the control end of the lifting cylinder, the control end of the limiting mechanism and the control end of the rotating motor are respectively electrically connected to the control end of the controller, so as to produce a grinding and polishing mechanism; Step 2: Milling the edge of the lens Select the milling mechanism of step 1 and the lens to be milled, place the lens to be milled on the stage of the milling mechanism and under the milling cutter, start the milling machine to operate the milling cutter, the milling cutter will mill the edge of the lens to be milled to cut off the corner line of the lens to be milled, after the corner line is milled, a milled eyeglass lens is prepared; Step 3: Rough grinding of the lenses Select the milled eyeglass lens of step 2, and then select the grinding and polishing mechanism of step 1, install the milled eyeglass lens on the polishing carrier, stick 2000-2500 mesh frosting paper on the polishing disk, control the lifting cylinder by the controller to send the milled eyeglass lens to the rough grinding work position and contact the frosting paper, control the limiting mechanism by the controller to the edge of the milled eyeglass lens, and abut the milled eyeglass lens to stabilize the milled eyeglass lens, control the rotating motor by the controller to drive the polishing disk to rotate, and then rough grind the milled eyeglass lens, after rough grinding for 15 minutes, change the other side of the milled eyeglass lens for rough grinding, and also rough grind for 15 minutes to prepare a rough-ground eyeglass lens; Step 4: Polishing of the lenses Select the rough-ground eyeglass lens of step three, and then prepare a polishing liquid. The polishing liquid selects carbonyl iron powder, diamond abrasive and deionized water, and the three are evenly mixed to prepare a polishing liquid. Then the polishing liquid is slowly added to the polishing disk. The magnetic mechanism will form a magnetic field on the surface of the polishing disk, and will rearrange and combine the polishing liquid. More polishing liquid will gather in the area with strong magnetic field, and less polishing liquid will gather in the area with weak magnetic field. The controller controls the lifting cylinder to send the rough-ground eyeglass lens to the polishing work position and contact it with the polishing disk and the polishing liquid. The controller controls the limiting mechanism to the edge of the rough-ground eyeglass lens and abuts against the rough-ground eyeglass lens to stabilize the rough-ground eyeglass lens. The controller controls the rotating motor to drive the polishing disk to rotate, and then polish the rough-ground eyeglass lens. The polishing speed of the polishing disk is 500 rpm. After polishing for 10 minutes, the other side of the rough-ground eyeglass lens is polished. The polishing speed of the polishing disk is also 500 rpm. After polishing for 10 minutes, a polished eyeglass lens is prepared.

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