CN115157062A

CN115157062A - Production equipment and production process of prevention and control lens mold

Info

Publication number: CN115157062A
Application number: CN202210928055.3A
Authority: CN
Inventors: 叶鑫; 叶金森
Original assignee: Zhejiang Huangyan Huanri Optical Co ltd
Current assignee: Zhejiang Huangyan Huanri Optical Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-10-11
Anticipated expiration: 2042-08-03
Also published as: CN115157062B

Abstract

The application discloses a prevention and control lens mold production device and a production process, which relate to the technical field of lens molds and comprise a grinding device and a polishing device, wherein the grinding device comprises a rack, a first clamping assembly, a grinding head assembly, a first driving piece and a grinding driving assembly; the first clamping assembly is rotationally connected to the rack, and the first driving piece is used for driving the first clamping assembly to rotate; the grinding head assembly comprises a grinding head, a mounting seat and a sliding seat, the grinding head is mounted on the mounting seat, the mounting seat is connected to the sliding seat in a sliding mode, the sliding seat is connected to the rack in a sliding mode, and the sliding direction of the sliding seat is perpendicular to that of the mounting seat; the grinding driving assembly comprises a first sliding driving piece and a second sliding driving piece, the first sliding driving piece is used for driving the sliding seat to slide, and the second sliding driving piece is used for driving the mounting seat to slide. By arranging the grinding equipment and the polishing equipment, the lens mold of the prevention and control lens is processed, and the processing efficiency of the prevention and control lens is improved.

Description

Production equipment and production process of prevention and control lens mold

Technical Field

The application relates to the technical field of lens molds, in particular to a prevention and control lens mold production device and a production process.

Background

Spectacle wearers usually wear single-focus lenses for a long time. The monofocal lens adjusts the distance between the eye and the object by the ciliary muscle, but the eye is easy to be tired by the adjustment of the ciliary muscle for a long time.

At present, in order to relieve eye fatigue, a prevention and control lens is provided in the market, wherein the prevention and control lens comprises a near vision region and a far vision region, and after a user uses the eye fatigue at a short distance, the user can overlook at a long distance in the far vision region, relax ciliary muscles and relieve the eye fatigue, so that myopia can be realized, and hyperopia can also be realized.

However, the near vision lens actually uses the principle of the concave lens, the far vision lens uses the principle of the convex lens, and the two lenses are slightly different in structure, so that the curvature of each position of the prevention and control lens needs to be accurately controlled, which causes that the processing of each prevention and control lens is extremely difficult. Therefore, in order to improve the processing efficiency of the prevention and control lens, it is necessary to develop a lens mold capable of precisely processing the prevention and control lens.

Disclosure of Invention

In order to overcome the defects, the invention provides a production device and a production process of a prevention and control lens mold, which can be used for processing the lens mold of the prevention and control lens and improving the processing efficiency of the prevention and control lens.

The application provides a prevention and control lens mould production facility and production technology adopts following technical scheme:

a prevention and control lens mold production device comprises a grinding device and a polishing device, wherein the grinding device comprises a rack, a first clamping assembly, a grinding head assembly, a first driving piece and a grinding driving assembly;

the first clamping assembly is rotationally connected to the rack, the first clamping assembly is used for clamping a workpiece and driving the workpiece to rotate, and the first driving piece is used for driving the first clamping assembly to rotate;

the grinding head assembly comprises a grinding head, a mounting seat and a sliding seat, the grinding head is mounted on the mounting seat, the mounting seat is connected to the sliding seat in a sliding mode, the sliding seat is connected to the rack in a sliding mode, the sliding direction of the sliding seat is perpendicular to that of the mounting seat, and at least one sliding direction between the sliding seat and the mounting seat is parallel to the direction of the rotating axis of the first clamping assembly;

the grinding driving assembly comprises a first sliding driving piece and a second sliding driving piece, the first sliding driving piece is used for driving the sliding seat to slide, and the second sliding driving piece is used for driving the mounting seat to slide;

the polishing equipment is used for polishing a workpiece.

According to the technical scheme, the grinding equipment and the polishing equipment are arranged, in practical processing, the rough blank of the mold is clamped in the first clamping assembly, the rough blank of the mold is driven to rotate through the first clamping assembly, the grinding head is driven to move through the sliding seat or the mounting seat, the grinding head is enabled to feed towards the rough blank of the mold, the surface of the rough blank of the mold, facing the grinding head, is ground, the radial positions of the grinding head relative to the rough blank of the mold are sequentially adjusted, the grinding head sequentially grinds all the radial positions of the rough blank of the mold, the feeding amount of the grinding head is adjusted when each pair of different radial positions of the rough blank of the mold are ground, the feeding depth of each radial position of the rough blank of the mold is accurately processed, a forming surface is processed on the rough blank of the mold, the forming surface is polished through the polishing equipment, the rough blank of the mold is finally manufactured into a lens mold of the control lens, the processing of the follow-up control lens is facilitated, and the processing efficiency of the control lens is improved.

Optionally, the first clamping assembly comprises a first clamping seat rotatably connected to the rack and a first positioning sucker connected with the first clamping seat, the first positioning sucker is used for adsorbing workpieces, and the first driving piece is used for driving the first clamping seat to rotate.

Through above-mentioned technical scheme, set up first grip slipper and first location sucking disc, through the absorption of first location sucking disc, realize the quick centre gripping to the thick embryo of mould, improve the clamping efficiency of the thick embryo of mould.

Optionally, a first vacuum communication hole is coaxially formed in the first clamping seat, a first vacuum adsorption hole is coaxially formed in the first positioning sucker, the first vacuum communication hole is communicated with the first vacuum adsorption hole, a first vacuum pump is arranged on the rack, and an air exhaust opening of the first vacuum pump is communicated with the first vacuum communication hole.

Through above-mentioned technical scheme, set up first vacuum pump, extract the air between the thick embryo of mould and the first positioning suction cup through first vacuum pump for the thick embryo of centre gripping mould that first positioning suction cup can be more stable improves the stability of course of working.

Optionally, the polishing apparatus includes a base, a second clamping assembly, a polishing assembly, a second driving member, and a polishing driving assembly;

the second clamping assembly is rotatably connected to the base, the second clamping assembly is used for clamping a workpiece and driving the workpiece to rotate, and the second driving piece is used for driving the second clamping assembly to rotate;

the polishing assembly comprises a polishing wheel, a mounting frame and a base, the polishing wheel is rotatably connected to the mounting frame, the rotating axis of the polishing wheel is arranged along the vertical direction, the mounting frame slides relative to the base along the vertical direction, and the sliding direction of the base is parallel to the rotating axis direction of the second clamping assembly;

the polishing adjusting component comprises a first polishing adjusting piece, a second polishing adjusting piece and a third polishing adjusting piece, the first polishing adjusting piece is used for driving the base to slide, the second polishing adjusting piece is used for driving the mounting frame to slide, and the third polishing adjusting piece is used for driving the polishing wheel to rotate.

Through above-mentioned technical scheme, polishing equipment includes base, second centre gripping subassembly, polishing subassembly, second driving piece and polishing drive assembly, and the second centre gripping subassembly can carry out the centre gripping to the mould coarse blank of accomplishing the shaping face processing, and the mould coarse blank rotates, and the polishing wheel cooperation is rotatory, polishes the shaping face, improves the precision of shaping face for during follow-up processing lens, the machining precision of lens is higher.

Optionally, the second clamping assembly comprises a second clamping seat rotatably connected to the base and a second positioning suction cup connected with the second clamping seat, the second positioning suction cup is used for adsorbing a workpiece, and the second driving piece is used for driving the second clamping seat to rotate.

Through the technical scheme, the second positioning sucker is arranged, the die rough blank is adsorbed through the second positioning sucker, the rapid clamping of the die rough blank is realized, and the clamping efficiency of the die rough blank is improved.

Optionally, a second vacuum communication hole is coaxially formed in the second clamping seat, a second vacuum adsorption hole is coaxially formed in the second positioning sucker, the second vacuum communication hole is communicated with the second vacuum adsorption hole, a second vacuum pump is arranged on the base, and an air exhaust port of the second vacuum pump is communicated with the second vacuum communication hole.

Through above-mentioned technical scheme, set up the second vacuum pump, extract the air between the thick embryo of mould and the second location sucking disc through the second vacuum pump for the thick embryo of centre gripping mould that the second location sucking disc can be more stable improves polishing process's stability.

Optionally, the polishing wheel is made of polyurethane.

Through above-mentioned technical scheme, traditional throwing aureola all adopts the surperficial adnexed single loop polyurethane layer to polish, and the polyurethane layer on polishing wheel surface very easily drops or wearing and tearing among the polishing process, in case the polyurethane layer drops or wearing and tearing, will influence the polishing of profiled surface, and the whole material through setting up throwing aureola is polyurethane, has improved the stability of polishing.

Optionally, the grinding device further comprises a first water-cooling tube, a water outlet of the first water-cooling tube is arranged towards the grinding head, and the first water-cooling tube is used for introducing cooling liquid.

Through above-mentioned technical scheme, set up first water-cooled tube, cool off bistrique and mould blank, reduce the possibility that mould blank grinding process is heated and is out of shape, improve the grinding precision of profiled surface.

Optionally, the polishing apparatus further includes a second water-cooling tube, a water outlet of the second water-cooling tube is disposed toward the polishing wheel, and the second water-cooling tube is used for introducing a cooling liquid.

Through above-mentioned technical scheme, set up the second water-cooled tube, cool off throwing aureola and the rough embryo of mould, reduce the possibility that the shaping surface is heated and is out of shape in the polishing process, improve the polishing precision of shaping surface.

The application provides a production technology of prevention and control lens mould, has used above-mentioned arbitrary prevention and control lens mould production facility, including following step:

s100, clamping the die rough blank on a first clamping assembly, driving the die rough blank to rotate through the first clamping assembly, and driving a grinding head to feed to grind the die rough blank through a grinding driving assembly;

s101, sequentially adjusting the radial positions of the grinding heads relative to the rough blank of the mold and simultaneously adjusting the feeding amount of the grinding heads, and processing the rough blank of the mold at different radial positions at different depths to form a molding surface;

and S200, polishing the molding surface of the mold rough blank by using polishing equipment to process the prevention and control lens mold.

Through the technical scheme, the lens mold for the prevention and control lens is manufactured by using the mold rough blank, so that the subsequent prevention and control lens is convenient to process, and the processing efficiency of the prevention and control lens is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) By arranging the grinding equipment and the polishing equipment, the mould rough blank is made into a lens mould of the prevention and control lens, so that the subsequent processing of the prevention and control lens is facilitated, and the processing efficiency of the prevention and control lens is improved;

(2) By arranging the second positioning sucker, the second positioning sucker adsorbs the die rough blank, so that the die rough blank is quickly clamped, and the clamping efficiency of the die rough blank is improved;

(3) The whole material through setting up the throwing aureola is polyurethane, has improved the stability of polishing.

Drawings

Fig. 1 is a schematic overall structure diagram of the first embodiment.

Fig. 2 is a schematic overall structure diagram of the grinding apparatus according to the first embodiment.

Fig. 3 is a partial structural schematic view of a grinding apparatus according to a first embodiment.

Fig. 4 is a schematic view of the overall structure of the polishing apparatus according to the first embodiment.

Fig. 5 is a schematic partial structure view of a polishing apparatus according to the first embodiment.

Fig. 6 is a schematic view of the overall structure of the grinding apparatus according to the second embodiment.

Fig. 7 is a schematic sectional view of the entire structure of the grinding apparatus according to the second embodiment.

Fig. 8 is an enlarged view of a structure shown in fig. 7.

Reference numerals are as follows: 1. grinding equipment; 101. a frame; 102. a first clamping assembly; 1021. a first clamping seat; 1022. a first positioning sucker; 1023. a first vacuum adsorption hole; 1024. a first vacuum communication hole; 103. a grinding head assembly; 1031. grinding heads; 1032. a mounting seat; 1033. a sliding seat; 104. a first driving member; 105. grinding the drive assembly; 1051. a first sliding drive member; 1052. a second glide drive; 106. a first water-cooled tube; 2. a polishing device; 201. a base; 202. a second clamping assembly; 2021. a second clamping seat; 2022. a second positioning suction cup; 2023. a second vacuum adsorption hole; 2024. a second vacuum communication hole; 203. a polishing assembly; 2031. a polishing wheel; 2032. a mounting frame; 2033. a connecting frame; 2034. an adjusting seat; 2035. a base; 204. a second driving member; 205. a polishing drive assembly; 2051. a first polishing conditioner; 2052. a second polishing conditioner; 2053. a third polishing conditioner; 2054. a fourth polishing conditioner; 2055. a fifth polishing conditioning member; 206. a second water-cooled tube; 3. a first vacuum pump; 4. a first vacuum tube; 5. a second vacuum pump; 6. a second vacuum tube; 7. a cylindrical cam; 8. a curved groove; 9. a grinding fluid supply assembly; 901. a liquid storage tank; 902. a catheter; 903. a spray head; 904. a piston head; 905. a guide frame; 906. a guide seat; 907. a liquid storage cavity; 908. an air guide channel; 909. an air intake passage; 910. a unidirectional membrane; 911. and a guide pin.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses prevention and control lens mould production equipment.

Referring to fig. 1, a grinding apparatus 1 and a polishing apparatus 2 are included.

Referring to fig. 2 and 3, the grinding apparatus 1 includes a frame 101, a first clamp assembly 102, a grinding head assembly 103, a first drive 104, and a grinding drive assembly 105.

Referring to fig. 2 and 3, the first clamping assembly 102 includes a first clamping seat 1021 and a first positioning suction cup 1022. The first clamping seat 1021 is rotatably connected to the frame 101, and a rotation axis of the first clamping seat 1021 is horizontally disposed. The first positioning suction cup 1022 is coaxially fixed to the first clamping seat 1021. The first positioning suction cup 1022 has a first vacuum suction hole 1023 coaxially formed therein, and the first holder 1021 has a first vacuum communication hole 1024 coaxially formed therein, which is communicated with the first vacuum suction hole 1023. The first vacuum suction hole 1023 penetrates the first holder 1021 in the axial direction.

Referring to fig. 2 and 3, a first vacuum pump 3 is installed on the frame 101, a first vacuum tube 4 is connected to an air exhaust port of the first vacuum pump 3, and the first vacuum tube 4 is communicated with the first vacuum communication hole 1024. In the practical use process, the first vacuum pump 3 extracts air in the first vacuum communication hole 1024 and the first vacuum absorption hole 1023 through the first vacuum tube 4, so that when the first positioning suction cup 1022 absorbs the rough mold blank, the connection between the first positioning suction cup 1022 and the rough mold blank is more stable.

Referring to fig. 2 and 3, the first driving member 104 is a stepping motor, the first driving member 104 is mounted on the frame 101, and power transmission is achieved between an output shaft of the first driving member 104 and the first clamping seat 1021 through belt transmission. In the actual processing process, the mold blank is adsorbed on the first positioning suction cup 1022, and the first driving member 104 drives the first clamping seat 1021 and the first positioning suction cup 1022 to rotate, so as to drive the mold blank to rotate.

Alternatively, the first drive member 104 may also be a servo motor.

Referring to fig. 2 and 3, the grinding head assembly 103 includes a grinding head 1031, a mounting seat 1032 and a slide mount 1033. The sliding seat 1033 is slidably connected to the frame 101, and a sliding direction of the sliding seat 1033 is parallel to a rotation axis direction of the first clamping seat 1021. The mounting seat 1032 is slidably connected to an upper end of the sliding seat 1033, a sliding direction of the mounting seat 1032 is perpendicular to and intersects with a rotation axis direction of the first clamping seat 1021, and the mounting seat 1032 slides in a horizontal direction.

Alternatively, the sliding direction of the sliding seat 1033 may be perpendicular to and intersect with the rotation axis direction of the first clamping seat 1021, and the sliding direction of the mounting seat 1032 may be parallel to the rotation axis direction of the first clamping seat 1021. The mount 1032 may also be slidable in the vertical direction.

Referring to fig. 2 and 3, the grinding drive assembly 105 includes a first slip driver 1051 and a second slip driver 1052. The first sliding driving member 1051 is a linear module, and the first sliding driving member 1051 is mounted on the frame 101. The sliding direction of the sliding block of the first sliding driving member 1051 is parallel to the direction of the rotation axis of the first clamping seat 1021, the sliding seat 1033 is fixedly connected with the sliding block of the first sliding driving member 1051, and the sliding seat 1033 is connected with the rack 101 by the sliding block of the first sliding driving member 1051. The second sliding driving member 1052 is a linear module, the second sliding driving member 1052 is mounted at the upper end of the sliding seat 1033, the sliding direction of the sliding block of the second sliding driving member 1052 is perpendicular to and intersects with the direction of the rotation axis of the first clamping seat 1021, the mounting seat 1032 is fixedly connected with the sliding block of the second sliding driving member 1052, and the sliding of the mounting seat 1032 relative to the sliding seat 1033 is realized through the sliding block of the second sliding driving member 1052.

Referring to fig. 2 and 3, the grinding apparatus 1 further includes a first water-cooling tube 106, the first water-cooling tube 106 is fixedly connected with the side wall of the mounting seat 1032, and a water outlet of the first water-cooling tube 106 faces the grinding head 1031. The first water cooling pipe 106 is used for connecting a cooling liquid supply device.

Referring to fig. 4 and 5, the polishing apparatus 2 includes a base 201, a second clamping assembly 202, a polishing assembly 203, a second driving member 204, a polishing driving assembly 205, and a second water-cooled tube 206.

Referring to fig. 4 and 5, the second clamping assembly 202 includes a second clamping base 2021 and a second positioning suction cup 2022. The second clamping seat 2021 is rotatably connected to the base 201, the rotation axis direction of the second clamping seat 2021 is horizontally disposed, and the second positioning suction cup 2022 is coaxially fixed with the second clamping seat 2021. The second positioning suction cup 2022 coaxially defines a second vacuum suction hole 2023, and the second clamping base 2021 coaxially defines a second vacuum communication hole 2024 communicating with the second vacuum suction hole 2023. The second vacuum communication hole 2024 penetrates the second holder 2021 along the axis. The base 201 is further provided with a second vacuum pump 5, an air exhaust port of the second vacuum pump 5 is connected with a second vacuum tube 6, and the other end of the second vacuum tube 6 is communicated with a second vacuum communication hole 2024. In the actual processing process, the second positioning suction cup 2022 is used for adsorbing the mold rough blank after the molding surface processing is completed, and the air between the second positioning suction cup 2022 and the mold rough blank is sucked away through the second vacuum pump 5, the second vacuum tube 6, the second vacuum communication hole 2024 and the second vacuum adsorption hole 2023, so that the mold rough blank can be stably clamped by the second positioning suction cup 2022, and the subsequent processing is facilitated.

Referring to fig. 4 and 5, the polishing assembly 203 includes a polishing wheel 2031, a mounting bracket 2032, a connecting bracket 2033, an adjustment base 2034, and a base 2035. The base 2035 is slidably connected to the base 201, and a sliding direction of the base 2035 is parallel to a rotation axis direction of the second clamp 2021. The adjusting seat 2034 is slidably connected to the base 201 along the horizontal direction, and the sliding direction of the adjusting seat 2034 is perpendicular to the sliding direction of the base 2035. The connecting frame 2033 is slidably connected to the upper end of the adjusting seat 2034, and the sliding direction of the connecting frame 2033 is parallel to the sliding direction of the base 2035. The mounting bracket 2032 is slidably connected to the connecting bracket 2033, and the sliding direction of the mounting bracket 2032 is arranged along the vertical direction. The polishing wheel 2031 is rotatably connected to the mounting bracket 2032, and the rotation axis of the polishing wheel 2031 is arranged in the vertical direction.

Referring to fig. 4 and 5, the polishing conditioning assembly includes a first polishing conditioning piece 2051, a second polishing conditioning piece 2052, a third polishing conditioning piece 2053, a fourth polishing conditioning piece 2054, and a fifth polishing conditioning piece 2055.

Referring to fig. 4 and 5, the first polishing adjusting member 2051 is a linear module, the first polishing adjusting member 2051 is mounted on the base 201, and the sliding direction of the slider of the first polishing adjusting member 2051 is parallel to the rotation axis direction of the second clamping seat 2021.

Alternatively, the first burnishing adjustment 2051 may also be a drive cylinder.

Referring to fig. 4 and 5, the fourth polishing conditioner 2054 is a linear module, and the fourth polishing conditioner 2054 is installed at the upper end of the slide of the first polishing conditioner 2051 in the horizontal direction. The slider of the fourth polishing adjusting member 2054 slides in the horizontal direction, and the slider sliding direction of the fourth polishing adjusting member 2054 is perpendicular to the slider sliding direction of the first polishing adjusting member 2051. The adjusting seat 2034 is fixed to the upper end of the slider of the fourth polishing adjusting member 2054.

Alternatively, the second burnishing adjuster 2052 may also be a drive cylinder.

Referring to fig. 4 and 5, the fifth polishing adjustment member 2055 is a driving cylinder, the fifth polishing adjustment member 2055 is mounted on the upper end of the adjustment base 2034, and the fifth polishing adjustment member 2055 is located at one end of the connecting frame 2033 away from the second clamping base 2021. The output shaft of the fifth burnishing adjuster 2055 is disposed toward the second holder 2021, and the axial direction of the output shaft of the fifth burnishing adjuster 2055 is parallel to the direction of the rotational axis of the second holder 2021. The output shaft of the fifth polishing adjustment member 2055 is fixedly connected to an end of the connecting frame 2033 facing away from the second clamping seat 2021.

Referring to fig. 4 and 5, the second polishing adjusting part 2052 is adjusting screw, and adjusting screw is vertical setting, and adjusting screw's lower extreme and link 2033 rotate to be connected, and adjusting screw threaded connection is in mounting bracket 2032, and adjusting screw drives the relative link 2033 of mounting bracket 2032 through rotating and slides along vertical direction. An adjusting hand wheel is further fixed at the upper end of the adjusting screw rod, so that the adjusting screw rod can be conveniently rotated to adjust the position of the mounting rack 2032 in the vertical direction.

Alternatively, the second burnishing adjuster 2052 may also be a linear module.

Referring to fig. 4 and 5, the third polishing adjusting member 2053 is a servo motor, the third polishing adjusting member 2053 is mounted on the mounting frame 2032, an output shaft of the third polishing adjusting member 2053 is vertically arranged downward, and the polishing wheel 2031 is coaxially fixed to the output shaft of the third polishing adjusting member 2053.

Alternatively, the third polishing adjustor 2053 may be a stepper motor or a hydraulic motor.

Referring to fig. 4 and 5, in an actual processing process, the first polishing adjusting element 2051 is used to drive the base 2035 to slide so as to adjust the position of the polishing wheel 2031 relative to the second clamping seat 2021 in the axial direction. The fourth polishing adjustment member 2054 is used to drive the adjustment seat 2034 to slide so as to adjust the radial position of the polishing wheel 2031 relative to the second clamping seat 2021. The second polishing adjustment part 2052 is used for driving the mounting rack 2032 to slide in the vertical direction so as to adjust the position of the polishing wheel 2031 in the vertical direction relative to the second clamping seat 2021. The polishing wheel 2031 and the second clamping base 2021 are matched with each other, and rotate separately, and then the polishing wheel 2031 is displaced in multiple directions, so that the mold rough blank adsorbed on the second positioning suction cup 2022 can be polished in all directions.

Referring to fig. 4 and 5, because fifth polishing regulating part 2055 is for driving actuating cylinder, consequently can be through the inside atmospheric pressure of adjusting fifth polishing regulating part 2055, reduce the inside atmospheric pressure of fifth polishing regulating part 2055, when making polishing wheel 2031 and shaping surface contact each other and produce great effort, polishing wheel 2031 can kick-back to the shaping surface relatively, realize the flexible processing to the shaping surface, and then carry out more meticulous polishing to the shaping surface, make the shaping surface of polishing out can satisfy the processing requirement of actual prevention and control lens.

Referring to fig. 4 and 5, the whole material of the polishing wheel 2031 is polyurethane, the conventional polishing wheel 2031 is polished by a single-ring polyurethane layer attached to the surface, the polyurethane layer on the surface of the polishing wheel 2031 is very easy to fall off or wear during the polishing process, and once the polyurethane layer falls off or wears, the polishing wheel 2031 loses the polishing effect, thereby affecting the polishing of the molding surface. Therefore, the polishing wheel 2031 is made of polyurethane, which improves the polishing stability.

Referring to fig. 4 and 5, the second water-cooled tube 206 is fixed on the mounting bracket 2032, a water outlet of the second water-cooled tube 206 is disposed toward the polishing wheel 2031, and the second water-cooled tube 206 is used for connecting a coolant supply device.

The embodiment of the application also discloses a production process of the prevention and control lens mold.

The method comprises the following steps:

s100, clamping the die rough blank on a first clamping assembly 102, driving the die rough blank to rotate through the first clamping assembly 102, and driving a grinding head 1031 to feed by a grinding driving assembly 105 to grind the die rough blank;

in actual processing, adsorb the one side of the mould blank on first positioning suction cup 1022, suck away the air between first positioning suction cup 1022 and the mould blank through first vacuum pump 3 for the mould blank is stable on first positioning suction cup 1022, and restart first driving piece 104 and drive first grip slipper 1021 and rotate, makes the mould blank begin to rotate, and grinding drive assembly 105 drives bistrique 1031 and feeds the mould blank that begins the rotation simultaneously and grinds. .

S101, sequentially adjusting the radial position of the grinding head 1031 relative to the die rough blank and simultaneously adjusting the feed amount of the grinding head 1031, and processing the radial positions of the die rough blank at different depths to form a molding surface;

in the actual processing, the feeding route and the feeding amount of the grinding head 1031 are controlled by a numerical control program, different depths of each radial position of the die rough blank are processed, and a molding surface is processed on the die rough blank.

And S200, polishing the molding surface of the mold rough blank by using polishing equipment 2 to process the prevention and control lens mold.

In actual processing, the rough mold blank of the mold with the molding surface is adsorbed on the second positioning suction cup 2022, the second driving piece 204 drives the second clamping seat 2021 to rotate, so that the second positioning suction cup 2022 drives the rough mold blank to rotate, the feeding route and the feeding amount of the polishing wheel 2031 are controlled by the numerical control program, the molding surface on the rough mold blank is polished in all directions, the molding surface is polished more finely, and the high-precision prevention and control lens can be processed when the molding surface is used for molding the prevention and control lens.

The working principle of the embodiment is as follows: through the centre gripping of first centre gripping subassembly 102 with the mould coarse blank, utilize grinding drive assembly 105 drive bistrique 1031 to remove, control bistrique 1031 feed line and feed amount, and cooperate with the rotation of first centre gripping subassembly 102, carry out the processing of the different degree of depth to each radial position on the mould coarse blank machined surface, with processing out the profiled surface, rethread polishing equipment 2 polishes the profiled surface, make the lens mould of prevention and control lens, make things convenient for the processing of follow-up prevention and control lens, improve the machining efficiency of prevention and control lens.

Example two

The difference from the first embodiment is that, referring to fig. 6 and 7, a cylindrical cam 7 is coaxially fixed on an outer ring of the first clamping seat 1021, and a curved groove 8 is coaxially formed on the outer ring of the cylindrical cam 7.

Referring to fig. 7 and 8, a grinding fluid supply assembly 9 is mounted on the housing 101, and the grinding fluid supply assembly 9 includes a fluid reservoir 901 fixed to the housing 101, a fluid guide pipe 902, a nozzle 903, a piston head 904, a guide frame 905, and a guide holder 906 coaxially fixed to the fluid reservoir 901. The liquid storage tank 901 is provided with a liquid storage cavity 907, and the liquid storage cavity 907 is used for storing grinding liquid. The liquid guide pipe 902 is arranged in the liquid storage tank 901 in a penetrating manner, one end of the liquid guide pipe 902 extends into the cavity bottom of the liquid storage cavity 907, the other end of the liquid guide pipe 902 is arranged towards the periphery of the first positioning suction cup 1022, and the spray head 903 is arranged at one end of the liquid guide pipe 902, which is far away from the cavity bottom of the liquid storage cavity 907.

Referring to fig. 7 and 8, guide holder 906 is located at one end of liquid storage tank 901 facing grinding head 1031, and guide holder 906 is opened with air guide channel 908 communicated with liquid storage cavity 907. The axial direction of the air guide channel 908 is parallel to the rotational axial direction of the first holder 1021. The piston head 904 is connected with the air guide channel 908 in a sliding mode, the piston head 904 slides along the axial direction of the air guide channel 908, the piston head 904 is provided with an air inlet channel 909 communicated with the air guide channel 908, and the tail end of the air inlet channel 909 is connected with a one-way diaphragm 910. When piston head 904 slides away from the bottom of reservoir 907, unidirectional diaphragm 910 opens to allow the end of air inlet channel 909 to be in communication with the interior of air guide channel 908, so that air enters the reservoir 907. When piston head 904 slides towards the direction close to the bottom of liquid storage cavity 907, one-way diaphragm 910 is closed to disconnect the end of air inlet channel 909 and the inside of air guide channel 908, piston head 904 compresses the air inside air guide channel 908 and liquid storage cavity 907, and grinding liquid stored in liquid storage cavity 907 is led out through liquid guide pipe 902 and spray head 903.

Referring to fig. 6 and 8, the guide frame 905 is coaxially sleeved on the outer periphery of the guide seat 906, and the guide frame 905 slides relative to the guide seat 906 along the axial direction of the guide seat 906. The guide frame 905 is fixedly connected with a guide pin 911, one end, far away from the guide frame 905, of the guide pin 911 is connected to the curved groove 8 in a sliding mode, when the first clamping seat 1021 drives the cylindrical cam 7 to rotate, the guide pin 911 makes linear reciprocating motion through the guide of the curved groove 8, the guide frame 905 is driven to slide along the guide seat 906 through the guide pin 911, the piston head 904 is driven to slide in the air guide channel 908, and along with continuous rotation of the first clamping seat 1021, the grinding fluid in the fluid storage cavity 907 is continuously sprayed out through the spray head 903.

Referring to fig. 7 and 8, the grinding fluid supply assemblies 9 are provided in a plurality of groups, and the plurality of groups of grinding fluid supply assemblies 9 are uniformly distributed around the circumference of the first clamping seat 1021 in the circumferential direction. In the actual processing process, along with the continuous rotation of first grip slipper 1021, the shower nozzle 903 that distributes in circumference can continuously supply the grinding fluid to the mould blank that first positioning suction disc 1022 adsorbs and bistrique 1031, and the grinding fluid can form the lubricant film between the contact surface of mould blank and bistrique 1031, reduces the friction between bistrique 1031 and the mould blank contact surface, also can reduce the smear metal and adhere to between bistrique 1031 and the mould blank contact surface simultaneously, improves the surface quality of profiled surface. And once the rotation of the first clamping seat 1021 is stopped, the supply of the grinding fluid is stopped, and the possibility that the grinding fluid is sprayed on the adsorption surface of the first positioning suction cup 1022 to cause the reduction of the adsorption capacity of the first positioning suction cup 1022 is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a prevention and control lens mould production facility which characterized in that: the grinding device (1) comprises a machine frame (101), a first clamping assembly (102), a grinding head assembly (103), a first driving piece (104) and a grinding driving assembly (105);

the first clamping assembly (102) is rotatably connected to the rack (101), the first clamping assembly (102) is used for clamping a workpiece and driving the workpiece to rotate, and the first driving part (104) is used for driving the first clamping assembly (102) to rotate;

the grinding head assembly (103) comprises a grinding head (1031), a mounting seat (1032) and a sliding seat (1033), the grinding head (1031) is mounted on the mounting seat (1032), the mounting seat (1032) is connected with the sliding seat (1033) in a sliding manner, the sliding seat (1033) is connected with the machine frame (101) in a sliding manner, the sliding direction of the sliding seat (1033) and the sliding direction of the mounting seat (1032) are perpendicular to each other, and at least one sliding direction between the sliding seat (1033) and the mounting seat (1032) is parallel to the direction of the rotation axis of the first clamping assembly (102);

the grinding drive assembly (105) comprises a first slip drive member (1051) and a second slip drive member (1052), the first slip drive member (1051) is used for driving the slip seat (1033) to slip, the second slip drive member (1052) is used for driving the mount (1032) to slip;

the polishing device (2) is used for polishing a workpiece.

2. The preventive lens mold production apparatus according to claim 1, characterized in that: the first clamping assembly (102) comprises a first clamping seat (1021) rotatably connected to the rack (101) and a first positioning sucker (1022) connected with the first clamping seat (1021), the first positioning sucker (1022) is used for sucking a workpiece, and the first driving piece (104) is used for driving the first clamping seat (1021) to rotate.

3. The preventive lens mold production apparatus according to claim 2, characterized in that: first vacuum intercommunicating pore (1024) have been seted up to first holder (1021) is coaxial, first vacuum adsorption hole (1023) have been seted up to first positioning suction cup (1022) is coaxial, first vacuum intercommunicating pore (1024) and first vacuum adsorption hole (1023) intercommunication, be equipped with first vacuum pump (3) on frame (101), the extraction opening and first vacuum intercommunicating pore (1024) intercommunication of first vacuum pump (3).

4. The preventive lens mold production apparatus according to claim 1, characterized in that: the polishing device (2) comprises a base (201), a second clamping assembly (202), a polishing assembly (203), a second driving piece (204) and a polishing driving assembly (205);

the second clamping assembly (202) is rotatably connected to the base (201), the second clamping assembly (202) is used for clamping a workpiece and driving the workpiece to rotate, and the second driving part (204) is used for driving the second clamping assembly (202) to rotate;

the polishing assembly (203) comprises a polishing wheel (2031), a mounting rack (2032) and a base (2035), the polishing wheel (2031) is rotatably connected to the mounting rack (2032), the rotation axis of the polishing wheel (2031) is arranged along the vertical direction, the mounting rack (2032) slides relative to the base (2035) along the vertical direction, and the sliding direction of the base (2035) is parallel to the rotation axis direction of the second clamping assembly (202);

the polishing adjustment assembly comprises a first polishing adjustment piece (2051), a second polishing adjustment piece (2052) and a third polishing adjustment piece (2053), wherein the first polishing adjustment piece (2051) is used for driving the base (2035) to slide, the second polishing adjustment piece (2052) is used for driving the mounting rack (2032) to slide, and the third polishing adjustment piece (2053) is used for driving the polishing wheel (2031) to rotate.

5. The preventive lens mold production apparatus according to claim 4, characterized in that: the second clamping assembly (202) comprises a second clamping seat (2021) rotatably connected to the base (201) and a second positioning sucker (2022) connected to the second clamping seat (2021), the second positioning sucker (2022) is used for adsorbing a workpiece, and the second driving element (204) is used for driving the second clamping seat (2021) to rotate.

6. The preventive lens mold production apparatus according to claim 5, characterized in that: the second clamping seat (2021) is coaxially provided with a second vacuum communication hole (2024), the second positioning sucker (2022) is coaxially provided with a second vacuum adsorption hole (2023), the second vacuum communication hole (2024) is communicated with the second vacuum adsorption hole (2023), the base (201) is provided with a second vacuum pump (5), and an air exhaust port of the second vacuum pump (5) is communicated with the second vacuum communication hole (2024).

7. The preventive lens mold production apparatus according to claim 4, characterized in that: the polishing wheel (2031) is made of polyurethane.

8. The preventive lens mold production apparatus according to claim 1, characterized in that: the grinding equipment (1) further comprises a first water-cooling pipe (106), a water outlet of the first water-cooling pipe (106) is arranged towards the grinding head (1031), and the first water-cooling pipe (106) is used for introducing cooling liquid.

9. The apparatus for manufacturing a prevention and control lens mold of claim 4, wherein: the polishing equipment (2) further comprises a second water-cooling pipe (206), a water outlet of the second water-cooling pipe (206) is arranged towards the polishing wheel (2031), and the second water-cooling pipe (206) is used for introducing cooling liquid.

10. A production process of a prevention and control lens mold is characterized by comprising the following steps: use of a safety lens mold production apparatus according to any of claims 1 to 9, comprising the steps of:

s100, clamping the die rough blank on a first clamping assembly (102), driving the die rough blank to rotate through the first clamping assembly (102), and driving a grinding head (1031) to feed to grind the die rough blank through a grinding driving assembly (105);

s101, sequentially adjusting the radial position of a grinding head (1031) relative to the die rough blank and simultaneously adjusting the feeding amount of the grinding head (1031), and processing the radial positions of the die rough blank at different depths to form a molding surface;

and S200, polishing the molding surface of the mold rough blank by using polishing equipment (2) to process the prevention and control lens mold.