A grinding device and grinding method for a 3D optical lens

Abstract

The present invention relates to the technical field of grinding, in particular to a grinding device and a grinding method for 3D optical lenses, including a base, and further comprising: two clamping components, the clamping components are located above the base, and the clamping components are used for clamping and fixing the lenses; a switching component, the switching component is located between the two clamping components; a grinding tool component, the grinding tool component is located below one of the clamping components and above the base; a driving component, the driving component is located between the base and the grinding tool component; a lifting component, the lifting component and the driving component are located below one of the clamping components. By providing the clamping components, the switching component, the grinding tool component, the driving component, and the lifting component, the present invention has the functions of rapid material change, grinding tool switching, and automatic grinding.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding, and particularly to a grinding device and a grinding method for 3D optical lenses. Background Art

[0002] Grinding is a finishing process (such as machining) that uses abrasive particles coated or embedded in a grinding tool to perform relative movement between the grinding tool and the workpiece under a certain pressure on the processing surface. Grinding can be used to process various metal and non-metal materials, and the processed surface shapes include flat surfaces, inner and outer cylindrical surfaces, conical surfaces, convex and concave spherical surfaces, threads, tooth surfaces, and other shaped surfaces.

[0003] A 3D optical lens is a transparent medium composed of two refractive surfaces at the front and back, also known as a lens. The two refractive surfaces of the lens are usually spherical surfaces, cylindrical surfaces, or toric surfaces. These shapes cause light to refract when passing through the lens, thereby changing the propagation direction of the light and helping us see objects clearly. In terms of material selection, 3D optical lenses mainly include resin and optical glass. Resin lenses are light in weight, safe, and have good impact resistance, but they have poor wear resistance; while optical glass lenses have clear imaging and are not easily worn, but they are heavier and prone to breakage. In addition, the functions and applications of 3D optical lenses are very extensive, including single vision lenses, functional lenses such as anti-fatigue lenses, bifocal lenses, and progressive multifocal lenses, etc. These lenses can be selected according to different eye use requirements. During the production and manufacturing of 3D optical lenses, a grinding machine is required for grinding.

[0004] After the existing grinding machine finishes grinding, it is necessary to remove the ground lens and then install the next lens to be ground before the next grinding can be carried out. This material changing method is slow, resulting in low grinding efficiency. Moreover, when the current grinding machine needs to grind lenses of another specification, it is necessary to remove the grinding head and then install a suitable grinding head before it can be used. This method of changing the grinding head is slow, resulting in low grinding efficiency. For this reason, we propose a grinding device for 3D optical lenses to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to solve the disadvantages that the existing grinding machine has a slow material changing method and a slow method of changing the grinding head, resulting in low grinding efficiency, and to propose a grinding device and a grinding method for 3D optical lenses.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A grinding device for 3D optical lenses, including a base, further comprising:

[0008] Two clamping components, the clamping components are located above the base, and the clamping components are used to clamp and fix the lens;

[0009] A switching component, the switching component is located between the two clamping components;

[0010] A grinding tool component, the grinding tool component is located below one of the clamping components and above the base;

[0011] A driving component, the driving component is located between the base and the grinding tool component;

[0012] A lifting component, the lifting component and the driving component are located below one of the clamping components.

[0013] Preferably, the clamping component includes a clamping cylinder, a gantry is fixedly arranged on the outer periphery of the clamping cylinder, a cross plate is fixedly arranged inside the gantry, a plurality of cross holes are arranged on the upper side of the cross plate, clamping jaws are slidably arranged in the cross holes, a lifting plate is fixedly arranged at the shaft end of the clamping cylinder, a connecting rod is rotatably arranged on the upper side of the clamping jaw, and the upper end of the connecting rod is rotatably arranged on the lower side of the lifting plate.

[0014] Preferably, the switching component includes a switching shaft, a circular hole is arranged on the upper side of the base, the switching shaft rotates inside the circular hole, a switching frame is fixedly arranged at the upper end of the switching shaft, the gantry is fixed on the switching frame, a gear is fixedly arranged on the outer periphery of the switching shaft, a reciprocating seat is slidably arranged on the upper side of the base, a rack is fixedly arranged on one side of the reciprocating seat, the rack is in meshing transmission connection with the gear, and a reciprocating cylinder is fixedly arranged on the upper side of the base, and the shaft end of the reciprocating cylinder is fixed on the reciprocating seat.

[0015] Preferably, the grinding tool component includes a guide post, the lower end of the guide post is fixed on the upper side of the base, a guide ring is slidably sleeved on the outer periphery of the guide post, a support frame is rotatably arranged on the outer periphery of the guide ring, a plurality of through holes are arranged on the upper side of the support frame, a rotating shaft is rotatably arranged inside the through holes, a grinding head is fixedly arranged at the upper end of the rotating shaft, and the specifications of the grinding heads are different.

[0016] Preferably, the driving component includes a rotating column, a rotating sleeve is slidably sleeved on the outer periphery of the rotating column, a through hole is arranged on the upper side of the base, the rotating sleeve rotates inside the through hole, a motor is fixedly arranged on the lower side of the top of the base, the shaft end of the motor is in bevel gear transmission connection with the outer periphery of the rotating sleeve, a hexagonal groove is arranged on the lower side of the rotating shaft, and the rotating column is detachably inserted into the hexagonal groove.

[0017] Preferably, the lifting assembly includes a lifting cylinder. An installation hole is provided on the upper side of the base. The lifting cylinder is fixed in the installation hole. A connecting ring is slidably sleeved on the outer periphery of the rotating column. A driving frame is rotatably provided on the outer periphery of the connecting ring. The shaft end of the lifting cylinder is fixed to the lower side of the driving frame. A plurality of connecting blocks are fixedly provided on the lower side of the support frame. One of the connecting blocks is detachably connected to the driving frame.

[0018] Preferably, the number of the connecting blocks is the same as that of the rotating shafts.

[0019] Preferably, the connecting block and the driving frame are detachably connected by bolts and nuts.

[0020] A grinding method for a grinding device of a 3D optical lens includes the following steps:

[0021] S1. Clamp and fix the lens through the clamping assembly;

[0022] S2. Automatically grind the lens through the cooperation of the grinding tool assembly, the lifting assembly and the driving assembly;

[0023] S3. After grinding is completed, quickly replace the next lens to be ground through the cooperation of the lifting assembly and the switching assembly;

[0024] S4. When it is necessary to change the grinding specification, change the grinding specification through the lifting assembly and the grinding tool assembly.

[0025] For the grinding device and grinding method of a 3D optical lens proposed by the present invention, the beneficial effects are as follows:

[0026] (1) In the present invention, by setting the base, the clamping assembly, the switching assembly, and the lifting assembly, the present invention has a fast material changing function, can quickly switch to the next lens to be ground, has a fast material changing speed, and thus has a high grinding efficiency.

[0027] (2) In the present invention, by setting the grinding tool assembly and the lifting assembly, the present invention has a function of switching grinding tools, does not need to remove and replace the grinding tool, can switch different grinding tools for use, can quickly switch the grinding head, and thus has a high grinding efficiency.

[0028] (3) In the present invention, by setting the clamping assembly, the switching assembly, the grinding tool assembly, the driving assembly, and the lifting assembly, the present invention has an automatic grinding function, can automatically grind the lens, and has a high grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 FIG. is a front three-dimensional structural schematic diagram of a grinding device for a 3D optical lens proposed by the present invention;

[0030] Figure 2 The back three-dimensional structural schematic diagram of a grinding device for a 3D optical lens proposed by the present invention;

[0031] Figure 3 The front sectional three-dimensional structural schematic diagram of a grinding device for a 3D optical lens proposed by the present invention;

[0032] Figure 4 As proposed in the present invention Figure 3 The partial enlarged structural schematic diagram of area A in

[0033] Figure 5 As proposed in the present invention Figure 3 The partial enlarged structural schematic diagram of area B in

[0034] In the figure: 1, base; 2, clamping cylinder; 3, gantry; 4, cross plate; 5, jaw; 6, lifting plate; 7, connecting rod; 8, switching shaft; 9, switching frame; 10, gear; 11, reciprocating seat; 12, rack; 13, reciprocating cylinder; 14, guide post; 15, guide ring; 16, support frame; 17, rotating shaft; 18, grinding head; 19, rotating column; 20, rotating sleeve; 21, motor; 22, lifting cylinder; 23, connecting ring; 24, driving frame; 25, connecting block. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0036] Referring to Figures 1 to 5 , a grinding device for a 3D optical lens includes a base 1, and further includes: two clamping components, a switching component, a grinding tool component, a driving component, and a lifting component.

[0037] Such as Figure 1 , Figure 4As shown in the figure, the clamping assembly is located above the base 1. The clamping assembly is used to clamp and fix the lens. The clamping assembly includes a clamping cylinder 2. The clamping cylinder 2 is externally connected to a solenoid valve through an air pipe. A gantry 3 is fixedly arranged on the outer periphery of the clamping cylinder 2. A cross plate 4 is fixedly arranged inside the gantry 3. A number of cross holes are provided on the upper side of the cross plate 4. Claw 5 slides in the cross holes. A lifting plate 6 is fixedly arranged at the shaft end of the clamping cylinder 2. A connecting rod 7 is rotatably arranged on the upper side of the claw 5. The upper end of the connecting rod 7 is rotatably arranged on the lower side of the lifting plate 6. When the lens needs to be ground, the lens needs to be clamped and fixed on the clamping assembly first. When the lens is clamped and fixed by the clamping assembly, it is necessary to first control the clamping cylinder 2 to extend, so that the claws 5 move away from each other, and then place the lens between the multiple claws 5, and then control the clamping cylinder 2 to retract. At this time, the claws 5 will move closer to each other and clamp the lens, so that automatic clamping can be completed, and the center of the lens can be controlled below the center of the cross plate 4, so as to facilitate grinding lenses of different specifications, and has strong versatility.

[0038] As Figures 1 to 3 shown, the switching assembly is located between the two clamping assemblies. The switching assembly is used to quickly switch the two clamping assemblies with each other. The switching assembly includes a switching shaft 8. A circular hole is provided on the upper side of the base 1. The switching shaft 8 rotates inside the circular hole. A switching frame 9 is fixedly arranged at the upper end of the switching shaft 8. The gantry 3 is fixed on the switching frame 9. A gear 10 is fixedly arranged on the outer periphery of the switching shaft 8. A reciprocating seat 11 slides on the upper side of the base 1. A rack 12 is fixedly arranged on one side of the reciprocating seat 11. The rack 12 is connected to the gear 10 through meshing transmission. A reciprocating cylinder 13 is fixedly arranged on the upper side of the base 1. The reciprocating cylinder 13 is externally connected to a solenoid valve through an air pipe. The shaft end of the reciprocating cylinder 13 is fixed on the reciprocating seat 11. When in use, when the lens grinding is completed and the next lens needs to be ground, it is necessary to first clamp the next lens to be ground on another clamping assembly, and then after the lens grinding is completed, control the reciprocating cylinder 13 to extend or retract. When the reciprocating cylinder 13 extends or retracts, it will drive the reciprocating seat 11 and the rack 12 to move. When the rack 12 moves, it will drive the gear 10 and the switching shaft 8 to rotate 180 degrees, so that another clamping assembly and the lens to be ground can be quickly switched to the grinding position, so as to achieve rapid material change and have a high grinding efficiency.

[0039] As Figure 1 and Figure 3As shown, the abrasive tool assembly is used to provide an abrasive tool for grinding. The abrasive tool assembly is located below a clamping assembly and above the base 1. The abrasive tool assembly includes a guide post 14. The guide post 14 has an octagonal structure. The lower end of the guide post 14 is fixed to the upper side of the base 1. A guide ring 15 is slidably sleeved on the outer periphery of the guide post 14. A support frame 16 is rotatably provided on the outer periphery of the guide ring 15. A number of through holes are provided on the upper side of the support frame 16. A rotating shaft 17 is rotatably provided inside the through holes. A grinding head 18 is fixed to the upper end of the rotating shaft 17. The specifications of the grinding heads 18 are different. Before grinding the lens, it is necessary to select a suitable grinding head 18 for use, so it has strong versatility.

[0040] As Figure 3 , Figure 5 shown, the driving assembly is used to drive the abrasive tool assembly to grind. The driving assembly is located between the base 1 and the abrasive tool assembly. The driving assembly includes a rotating column 19. The rotating column 19 has a hexagonal structure. A rotating sleeve 20 is slidably sleeved on the outer periphery of the rotating column 19. A through hole is provided on the upper side of the base 1. The rotating sleeve 20 rotates inside the through hole. A motor 21 is fixed to the lower side of the top of the base 1. The motor 21 is externally connected to a power supply and a switch through a wire. The shaft end of the motor 21 is connected to the outer periphery of the rotating sleeve 20 through bevel gear transmission. A hexagonal groove is provided on the lower side of the rotating shaft 17. The rotating column 19 is detachably inserted into the hexagonal groove. When it is necessary to grind the lens, it is necessary to first insert the rotating column 19 into the hexagonal groove of the corresponding rotating shaft 17, and then turn on the motor 21. The motor 21 will drive the rotating sleeve 20 and the rotating column 19 to rotate through the bevel gear. When the rotating column 19 rotates, it will drive the corresponding rotating shaft 17 and the grinding head 18 to rotate. When the grinding head 18 rotates, it can automatically grind the lower surface of the lens, and automatic grinding can be realized.

[0041] As Figure 3 , Figure 5As shown, the lifting assembly is used to drive the mold assembly to rise or fall. The lifting assembly and the driving assembly are located below a clamping assembly. The lifting assembly includes a lifting cylinder 22. A mounting hole is provided on the upper side of the base 1. The lifting cylinder 22 is fixed in the mounting hole. The lifting cylinder 22 is externally connected to the electromagnetic valve through an air pipe. A connecting ring 23 is slidably sleeved on the outer periphery of the rotating column 19. A driving frame 24 is rotatably provided on the outer periphery of the connecting ring 23. The shaft end of the lifting cylinder 22 is fixed to the lower side of the driving frame 24. The lower side of the support frame 16 is fixed A plurality of connecting blocks 25 are provided, and the connecting blocks 25 and the rotating shaft 17 are evenly distributed on the circumference. The number of the connecting blocks 25 is the same as that of the rotating shaft 17. One connecting block 25 is detachably connected to the driving frame 24. The connecting block 25 and the driving frame 24 are detachably connected by bolts and nuts. Specifically, bolt holes are provided on one side of the connecting block 25 and the driving frame 24. The bolts penetrate the two bolt holes. The outer periphery of the bolts is connected to the nuts by threads. One side of the driving frame 24 and the connecting block 25 is an arc-shaped structure. The driving frame 24 and the connecting block 25 are detachably connected to the driving frame 24. The arc surface on the guide ring 15 is a concentric structure. When the lens needs to be ground, the lifting cylinder 22 needs to be controlled to extend first. The extension of the lifting cylinder 22 will drive the support frame 16, the guide ring 15, the rotating shaft 17, the grinding head 18 and the rotating column 19 to rise, so that the grinding head 18 can contact the lower surface of the lens, and then the motor 21 is turned on for grinding. When the lens grinding is completed and the material needs to be changed, the lifting cylinder 22 needs to be controlled to retract first so that the grinding head 18 descends, and then the reciprocating cylinder 13 is controlled to extend or retract to change the material, thereby preventing the grinding head 18 from hitting the lens. When the grinding head 18 needs to be replaced, the lifting cylinder 22 needs to be controlled to retract first, and then the connecting block 25 is separated from the driving frame 24, and then the support frame 16 is lifted, so that the rotating column 19 is separated from the hexagonal groove, and then the supporting frame 16 is rotated to select a suitable grinding head 18 for use. After the selection is completed, the reverse step is performed, and the driving frame 24 is connected to the corresponding connecting block 25 for continued use, thereby facilitating the replacement of the grinding head 18.

[0042] A grinding method of a grinding device for a 3D optical lens comprises the following steps:

[0043] S1, clamping and fixing the lens by means of a clamping assembly;

[0044] S2, automatically grinding the lens by cooperating with the grinding tool assembly, the lifting assembly and the driving assembly;

[0045] S3, after the grinding is completed, the lifting assembly and the switching assembly cooperate to quickly replace the next lens to be ground;

[0046] S4. When the grinding specifications need to be changed, the grinding specifications are changed through the lifting assembly and the grinding tool assembly.

Claims

1. A 3D optical lens grinding device, comprising a base (1), characterized in that: Also includes: Two clamping assemblies, the clamping assemblies being located above the base (1) and being used to clamp and fix the lens; A switching assembly, wherein the switching assembly is located between the two clamping assemblies; A mold assembly, the mold assembly is located below a clamping assembly, and the mold assembly is located above a base (1); A drive assembly, the drive assembly being located between the base (1) and the mold assembly; A lifting assembly, wherein the lifting assembly and the driving assembly are located below a clamping assembly; The switching assembly comprises a switching shaft (8), a circular hole is provided on the upper side of the base (1), the switching shaft (8) rotates inside the circular hole, a switching frame (9) is fixedly provided on the upper end of the switching shaft (8), the gantry frame (3) is fixed on the switching frame (9), a gear (10) is fixedly provided on the outer periphery of the switching shaft (8), a reciprocating seat (11) is slidably provided on the upper side of the base (1), a rack (12) is fixedly provided on one side of the reciprocating seat (11), the rack (12) is connected to the gear (10) through meshing transmission, and a reciprocating cylinder (13) is fixedly provided on the upper side of the base (1), the shaft end of the reciprocating cylinder (13) is fixed on the reciprocating seat (11); The abrasive tool assembly comprises a guide column (14), the lower end of the guide column (14) is fixed to the upper side of the base (1), a guide ring (15) is slidably sleeved on the outer periphery of the guide column (14), a support frame (16) is rotatably provided on the outer periphery of the guide ring (15), a plurality of through holes are provided on the support frame (16), a rotating shaft (17) is rotatably provided inside the through holes, a grinding head (18) is fixedly provided on the upper end of the rotating shaft (17), and the specifications of the grinding heads (18) are different; The driving assembly comprises a rotating column (19), a rotating sleeve (20) is slidably sleeved on the outer circumference of the rotating column (19), a through hole is provided on the base (1), the rotating sleeve (20) rotates on the inner side of the through hole, a motor (21) is fixedly provided on the lower side of the top of the base (1), the shaft end of the motor (21) and the outer circumference of the rotating sleeve (20) are connected via a bevel gear transmission, a hexagonal groove is provided on the lower side of the rotating shaft (17), and the rotating column (19) is disassembled and inserted into the hexagonal groove; The lifting assembly comprises a lifting cylinder (22), a mounting hole is provided on the upper side of the base (1), the lifting cylinder (22) is fixed in the mounting hole, a connecting ring (23) is slidably sleeved on the outer periphery of the rotating column (19), a driving frame (24) is rotatably provided on the outer periphery of the connecting ring (23), the shaft end of the lifting cylinder (22) is fixed on the lower side of the driving frame (24), a plurality of connecting blocks (25) are fixed on the lower side of the supporting frame (16), and one of the connecting blocks (25) is detachably connected to the driving frame (24).

2. A 3D optical lens grinding device according to claim 1, characterized in that: The clamping assembly comprises a clamping cylinder (2), a gantry (3) is fixedly provided on the outer periphery of the clamping cylinder (2), a cross plate (4) is fixedly provided on the inner side of the gantry (3), a plurality of cross holes are provided on the cross plate (4), clamping claws (5) are slidably provided in the cross holes, a lifting plate (6) is fixedly provided on the axial end of the clamping cylinder (2), a connecting rod (7) is rotatably provided on the upper side of the clamping claw (5), and the upper end of the connecting rod (7) is rotatably connected to the lower side of the lifting plate (6).

3. A 3D optical lens grinding device according to claim 1, characterized in that: The number of the connecting blocks (25) is the same as the number of the rotating shafts (17).

4. The grinding device for a 3D optical lens according to claim 1, characterized in that: The connection block (25) and the driving frame (24) are detachably connected via bolts and nuts.

5. A grinding method for a 3D optical lens grinding device according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, clamping and fixing the lens by means of a clamping assembly; S2, automatically grinding the lens by cooperating with the grinding tool assembly, the lifting assembly and the driving assembly; S3, after the grinding is completed, the lifting assembly and the switching assembly cooperate to quickly replace the next lens to be ground; S4. When the grinding specifications need to be changed, the grinding specifications are changed through the lifting assembly and the grinding tool assembly.

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