CN213917489U - Lens clamp for lens grinding machine - Google Patents

Lens clamp for lens grinding machine Download PDF

Info

Publication number
CN213917489U
CN213917489U CN202022374756.6U CN202022374756U CN213917489U CN 213917489 U CN213917489 U CN 213917489U CN 202022374756 U CN202022374756 U CN 202022374756U CN 213917489 U CN213917489 U CN 213917489U
Authority
CN
China
Prior art keywords
lens
cooling water
fixedly connected
grinding
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202022374756.6U
Other languages
Chinese (zh)
Inventor
张贵生
王桂利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Guangpu Optical Apparatus Co ltd
Original Assignee
Tianjin Guangpu Optical Apparatus Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Guangpu Optical Apparatus Co ltd filed Critical Tianjin Guangpu Optical Apparatus Co ltd
Priority to CN202022374756.6U priority Critical patent/CN213917489U/en
Application granted granted Critical
Publication of CN213917489U publication Critical patent/CN213917489U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model discloses a lens clamp for a lens grinder, which comprises a workbench, a bracket and a grinding device, wherein the workbench is arranged on the ground, the bracket is arranged at two sides of the upper end of the workbench, the grinding device is arranged at the upper part of the bracket, and the lens clamp also comprises a lifting device, a clamping device and a cooling device, the lifting device is arranged at the middle part of the workbench, the clamping device is arranged at the upper end of the lifting device, and the cooling device is arranged at one side of the bracket, the utility model has the advantages of simple structure, lifting device, flexible use, clamping device, capability of quickly clamping lenses with different specifications and models, improved working efficiency, cooling device, capability of cooling the lenses when grinding the lenses, prevent that the high temperature that produces from causing the damage to the lens in the grinding process, promote the product percent of pass.

Description

Lens clamp for lens grinding machine
Technical Field
The utility model belongs to the technical field of the lens grinding technique and specifically relates to a lens anchor clamps for lens grinds machine is related to.
Background
In prior art, optical lens needs to grind the process through multichannel from the blank to the finished product, then needs the different machine of grinding to grind it at multichannel grinding in-process, and the anchor clamps that current machine of grinding used are comparatively single, when grinding the lens of different specifications and model, need change different anchor clamps and carry out the centre gripping to it, and work efficiency is lower.
The application numbers are: 201821658851.5 discloses an optical lens grinder, which comprises a grinder body, wherein the inside of the grinder body is fixedly connected with a protective sleeve disc, and the left side of the protective sleeve disc is provided with a concave pipe. This optical lens grinds machine can not solve the lens anchor clamps that the lens ground the machine comparatively single, the lower technical problem of work efficiency to can't adjust the relative height of anchor clamps according to actual processing demand, the flexibility is relatively poor, can't carry out cooling to the lens when grinding the lens, the high temperature that produces causes the damage to the lens easily in the grinding process, the product percent of pass is lower, and the whole integrated nature of the device is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lens anchor clamps for lens grinds machine.
In order to achieve the above object, the present invention provides a technical solution:
the utility model provides a lens anchor clamps for lens grinds machine, includes workstation, support and grinder, the workstation erects subaerial, the support sets up workstation upper end both sides, grinder is located support upper portion still includes elevating gear, fixture device and cooling device, elevating gear is located the workstation middle part, fixture device is located the elevating gear upper end, cooling device is located support one side.
Elevating gear includes lift mounting panel and lift cylinder, the lift mounting panel sets up workstation middle part and with workstation fixed connection, the lift cylinder corresponds grinder sets up lift mounting panel upper end and with lift mounting panel fixed connection, the output of lift cylinder runs through the workstation.
The fixture device comprises a fixture base plate, two fixture supporting plates, two adjusting screws, two clamping blocks and two clamping pads, wherein the fixture base plate is arranged at the output end of the lifting cylinder and fixedly connected with the output end of the lifting cylinder, the two fixture supporting plates are symmetrically arranged on two sides of the upper end of the fixture base plate and fixedly connected with the fixture base plate, the adjusting screws are arranged on one side of the fixture supporting plates and are in threaded connection with the fixture supporting plates, the outer ends of the adjusting screws are provided with the adjusting knobs, the two clamping blocks are arranged on the two sides and are respectively fixedly connected with the other sides of the fixture supporting plates and the inner ends of the adjusting screws, the two clamping pads are respectively arranged on the two inner sides of the clamping blocks and are fixedly connected with the clamping blocks.
Cooling device includes coolant tank, cooling water pump, condenser tube, cooling shower nozzle and ooff valve, coolant tank sets up support upper portion one side and with support fixed connection, coolant pump corresponds coolant tank sets up support upper portion and with support fixed connection, condenser tube with the coolant tank intercommunication, condenser tube sets up condenser tube lower extreme and its one end with the condenser tube intercommunication, condenser tube is the bellows, cooling shower nozzle sets up the condenser tube other end and with the condenser tube intercommunication, the ooff valve sets up on the condenser tube and with condenser tube fixed connection.
The grinding device comprises a grinding motor, a grinding shaft and a grinding wheel, the grinding motor is arranged on the other side of the upper portion of the support and fixedly connected with the support, the output end of the grinding motor penetrates through the support, the grinding shaft is arranged on the two sides of the upper portion of the support and rotatably connected with the support through bearings, one end of the grinding shaft is fixedly connected with the output end of the grinding motor, and the grinding wheel is arranged in the middle of the grinding shaft and fixedly connected with the grinding shaft.
Still including air-drying the fan, air-drying the fan setting and being in workstation upper portion one side just runs through the workstation with workstation fixed connection.
The air drying fan is arranged on the upper portion of the support and fixedly connected with the support.
Still include storage water tank, storage water tank sets up workstation upper portion opposite side and with the connection can be dismantled to the workstation.
Still including filling up the foot, it has four to fill up the foot set up respectively workstation lower extreme four corners and with workstation fixed connection, the workstation passes through it erects subaerial to fill up the foot.
Still include electrically controlled device, electrically controlled device sets up workstation one side and with workstation fixed connection, electrically controlled device and lift cylinder, cooling water pump, grinding motor, air-dry the equal electric connection of fan and light.
The utility model has the advantages that:
simple structure, be equipped with elevating gear, can adjust fixture device's relative height according to actual processing demand, it is nimble to use, be equipped with fixture device, can press from both sides tight operation fast to the lens of different specifications and model, improve work efficiency, be equipped with cooling device, can cool off the lens when grinding the lens, prevent that the high temperature that produces from leading to the fact the damage to the lens in the grinding process, promote the product percent of pass, be equipped with in addition and air-dry the fan, light and storage water tank, the accessible air-dries the fan and carries out the air-drying and whether it accords with the production requirement at the preliminary examination under the light to the lens in the course of working, storage water tank is used for storing the lens of accomplishing processing, and convenient for storage, the whole integration of device is high.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an electrical connection diagram of the present invention.
In the figure: 1. a work table; 2. a support; 3. a grinding device; 4. a lifting device; 5. a clamp device; 6. a cooling device; 7. a lifting mounting plate; 8. a lifting cylinder; 9. a clamp base plate; 10. a clamp support plate; 11. adjusting the screw rod; 12. a clamping block; 13. a clamping pad; 14. a cooling water tank; 15. a cooling water pump; 16. a cooling water pipe; 17. cooling the spray head; 18. an on-off valve; 19. grinding the motor; 20. grinding the shaft; 21. grinding a grinding wheel; 22. air drying the fan; 23. an illuminating lamp; 24. a material storage water tank; 25. a foot pad; 26. an electric control device.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings,
the utility model provides a lens anchor clamps for lens grinds machine, includes workstation 1, support 2 and grinder 3, and workstation 1 erects subaerial, and support 2 sets up in 1 upper end both sides of workstation, and grinder 3 is located 2 upper portions of support, still includes elevating gear 4, fixture device 5 and cooling device 6, and elevating gear 4 is located 1 middle part of workstation, and fixture device 5 is located elevating gear 4 upper end, and cooling device 6 is located 2 one sides of support, the utility model discloses overall structure schematic diagram is as shown in FIG. 1.
Elevating gear 4 includes lift mounting panel 7 and lift cylinder 8, lift mounting panel 7 sets up at 1 middle part of workstation and with 1 fixed connection of workstation, lift cylinder 8 correspond grinder 3 set up at 7 upper ends of lift mounting panel and with 7 fixed connection of lift mounting panel, the output of lift cylinder 8 runs through workstation 1, elevating gear 4 passes through lift mounting panel 7 and the cooperation of lift cylinder 8, can be according to the relative height of actual processing demand adjustment fixture device 5, wherein, lift mounting panel 7 is used for providing the support for lift cylinder 8, lift cylinder 8 is used for driving fixture device 5 and goes up and down.
The fixture device 5 comprises a fixture base plate 9, two fixture supporting plates 10, adjusting screws 11, two clamping blocks 12 and two clamping pads 13, wherein the fixture base plate 9 is arranged at the output end of the lifting cylinder 8 and fixedly connected with the output end of the lifting cylinder 8, the two fixture supporting plates 10 are symmetrically arranged at two sides of the upper end of the fixture base plate 9 and fixedly connected with the fixture base plate 9, the adjusting screws 11 are arranged on the fixture supporting plates 10 on one side and in threaded connection with the fixture supporting plates 10, the outer ends of the adjusting screws 11 are provided with adjusting knobs, the two clamping blocks 12 are provided, the two clamping blocks 12 are respectively fixedly connected with the fixture supporting plates 10 on the other side and the inner ends of the adjusting screws 11, the two clamping pads 13 are respectively arranged at the inner sides of the two clamping blocks 12 and fixedly connected with the clamping blocks 12, the fixture device 5 passes through the fixture base plate 9, The lens of different specifications and model are held, wherein, anchor clamps base plate 9 is used for connecting lift cylinder 8 and erection bracing anchor clamps backup pad 10, anchor clamps backup pad 10 is used for providing the support for adjusting screw 11 and clamp piece 12, adjusting screw 11 is used for adjusting two relative distances that press from both sides between piece 12, press from both sides tight piece 12 and be used for pressing from both sides the lens tightly, press from both sides tight pad 13 for rubber clamp pad 13, be used for protecting the lens at the in-process that presss from both sides the lens.
The cooling device 6 comprises a cooling water tank 14, a cooling water pump 15, a cooling water pipe 16, a cooling spray nozzle 17 and a switch valve 18, wherein the cooling water tank 14 is arranged on one side of the upper part of the bracket 2 and is fixedly connected with the bracket 2, the cooling water pump 15 is arranged on the upper part of the bracket 2 corresponding to the cooling water tank 14 and is fixedly connected with the bracket 2, the cooling water pump 15 is communicated with the cooling water tank 14, the cooling water pipe 16 is arranged at the lower end of the cooling water pump 15, one end of the cooling water pipe is communicated with the cooling water pump 15, the cooling water pipe 16 is a corrugated pipe, the cooling spray nozzle 17 is arranged at the other end of the cooling water pipe 16 and is communicated with the cooling water pipe 16, the switch valve 18 is arranged on the cooling water pipe 16 and is fixedly connected with the cooling water pipe 16, the cooling device 6 is matched with the cooling water tank 14, the cooling water pump 15, the cooling water pipe 16, the cooling spray nozzle 17 and the switch valve 18 to cool the lens when the lens is ground, cooling water tank 14 is used for storing and carries out the refrigerated water source, is equipped with the water inlet on cooling water tank 14 for add water, and cooling water pump 15 is arranged in transporting the cooling water among cooling water tank 14, and condenser tube 16 provides the route for the cooling water, and cooling shower 17 is used for spraying the lens in the course of working, and ooff valve 18 can open and close cooling shower 17.
Grinder 3 is including grinding motor 19, grind axle 20 and grinding wheel 21, grind motor 19 setting at 2 upper portion opposite sides of support and with support 2 fixed connection, grind motor 19's output runs through support 2, grind axle 20 setting between the support 2 upper portion of both sides and through bearing and support 2 rotation connection, grind the one end of axle 20 and grind motor 19's output fixed connection, grinding wheel 21 sets up at grinding axle 20 middle part and with grinding axle 20 fixed connection, grinder 3 is through grinding motor 19, grind axle 20 and grinding wheel 21 cooperation, grind the lens, wherein, grinding motor 19 is used for driving grinding axle 20, thereby drive grinding wheel 21 operation, grind axle 20 is used for connecting the support 2 of both sides, provide the support for grinding wheel 21 simultaneously, grinding wheel 21 is used for grinding the lens.
Still including air-drying fan 22, air-drying fan 22 sets up in 1 upper portion one side of workstation and runs through workstation 1 and workstation 1 fixed connection, and the accessible air-dries fan 22 air-dries the lens in to the course of working.
Still include light 23, light 23 corresponds air-dry fan 22 and sets up on support 2 upper portion and with support 2 fixed connection, can be under light 23 its preliminary examination whether accord with the production requirement.
Still include storage water tank 24, storage water tank 24 sets up at 1 upper portion opposite side of workstation and can dismantle with workstation 1 and be connected, and storage water tank 24 is used for storing the lens of accomplishing the processing.
Still including filling up foot 25, fill up foot 25 and have four, four fill up foot 25 set up respectively in 1 lower extreme four corners of workstation and with workstation 1 fixed connection, workstation 1 erects subaerial through filling up foot 25, fill up foot 25 and can increase the area of contact on workstation 1 and ground to improve workstation 1's stability.
Still include electrically controlled device 26, electrically controlled device 26 set up in workstation 1 one side and with workstation 1 fixed connection, electrically controlled device 26 and lift cylinder 8, cooling water pump 15, grinding motor 19, air-dry fan 22 and the equal electric connection of light 23, the utility model discloses the electric connection picture is shown as figure 2.
The working process is as follows:
the lens to be ground is placed between two clamping pads 13, an adjusting screw 11 is rotated through an adjusting knob to drive a clamping block 12 connected with the adjusting screw to move towards the clamping block 12 on the other side until the two clamping pads 13 clamp the lens, according to the processing requirement, a clamp device 5 is controlled to lift through an electric control device 26, the clamp device 5 drives the lens to stop at a specified height, a grinding motor 19 is controlled to work through the electric control device 26 to drive a grinding wheel 21 to rotate, so that the lens is ground, when the lens is processed, cooling water is controlled through a switch valve 18 to cool the lens as required, after the processing is finished, the adjusting screw 11 is rotated through the adjusting knob to drive the clamping block 12 connected with the adjusting screw to move towards the adjusting knob until the two clamping pads 13 loosen the lens, the lens is taken down and placed above an air drying fan, air-dry the fan with the lens through controlling of electrically controlled device 26, it opens through electrically controlled device 26 control light 23, whether it accords with the production requirement at light 23 down preliminary examination, if still need further processing, then press from both sides the lens tightly under fixture device 5's effect, further processing, after the processing is qualified, the lens that will process the completion is placed and is stored in storage water tank 24, can prevent the lens oxidation, and storage water tank 24 can be dismantled with workstation 1 and be connected, can take off and transport, high durability and convenient use.
The beneficial effects of the utility model are that simple structure, be equipped with elevating gear 4, can adjust fixture device 5's relative height according to the actual processing demand, it is nimble to use, be equipped with fixture device 5, can press from both sides tight operation fast to the lens of different specifications and model, the work efficiency is improved, be equipped with cooling device 6, can cool off the lens when grinding the lens, prevent that the high temperature that produces from leading to the fact the damage to the lens in the grinding process, promote the product percent of pass, be equipped with air-dry fan 22 in addition, light 23 and storage water tank 24, accessible air-dry fan 22 carries out the air-drying to the lens in the course of working and whether it accords with the production requirement under light 23 preliminary examination, storage water tank 24 is used for storing the lens of accomplishing processing, and convenient for storage, the whole integrated nature of device is high.
While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (10)

1. The utility model provides a lens anchor clamps for lens grinds machine, includes workstation (1), support (2) and grinder (3), workstation (1) erects subaerial, support (2) set up workstation (1) upper end both sides, grinder (3) are located support (2) upper portion, its characterized in that still includes elevating gear (4), fixture device (5) and cooling device (6), elevating gear (4) are located workstation (1) middle part, fixture device (5) are located elevating gear (4) upper end, cooling device (6) are located support (2) one side.
2. A lens clamp for a lens grinder according to claim 1, characterized in that the lifting device (4) comprises a lifting mounting plate (7) and a lifting cylinder (8), the lifting mounting plate (7) is arranged in the middle of the working table (1) and fixedly connected with the working table (1), the lifting cylinder (8) is arranged at the upper end of the lifting mounting plate (7) corresponding to the grinding device (3) and fixedly connected with the lifting mounting plate (7), and the output end of the lifting cylinder (8) penetrates through the working table (1).
3. The lens holder for a lens grinder according to claim 1, wherein the holder device (5) comprises a holder base plate (9), two holder support plates (10), an adjusting screw (11), two clamping blocks (12) and two clamping pads (13), the holder base plate (9) is provided at an output end of the lifting cylinder (8) and fixedly connected to the output end of the lifting cylinder (8), the two holder support plates (10) are symmetrically provided at both sides of an upper end of the holder base plate (9) and fixedly connected to the holder base plate (9), the adjusting screw (11) is provided on the holder support plate (10) at one side and threadedly connected to the holder support plate (10), the outer end of the adjusting screw (11) is provided with an adjusting knob, the clamping blocks (12) are provided with two clamping pads, the two clamping blocks (12) are fixedly connected with the inner ends of the clamp supporting plate (10) and the adjusting screw rod (11) on the other side respectively, the number of the clamping pads (13) is two, and the two clamping pads (13) are arranged on the inner sides of the two clamping blocks (12) respectively and are fixedly connected with the clamping blocks (12).
4. The lens holder for a lens grinder according to claim 1, wherein the cooling device (6) includes a cooling water tank (14), a cooling water pump (15), a cooling water pipe (16), a cooling spray head (17), and an on-off valve (18), the cooling water tank (14) is disposed at one side of the upper portion of the stand (2) and fixedly connected to the stand (2), the cooling water pump (15) is disposed at the upper portion of the stand (2) corresponding to the cooling water tank (14) and fixedly connected to the stand (2), the cooling water pump (15) is communicated with the cooling water tank (14), the cooling water pipe (16) is disposed at the lower end of the cooling water pump (15) and one end thereof is communicated with the cooling water pump (15), the cooling water pipe (16) is a corrugated pipe, the cooling spray head (17) is disposed at the other end of the cooling water pipe (16) and is communicated with the cooling water pipe (16), the switch valve (18) is arranged on the cooling water pipe (16) and is fixedly connected with the cooling water pipe (16).
5. A lens holder for a lens grinder according to claim 1, wherein the grinding means (3) comprises a grinding motor (19), a grinding shaft (20) and a grinding wheel (21), the grinding motor (19) is disposed on the other side of the upper portion of the support (2) and is fixedly connected to the support (2), the output end of the grinding motor (19) penetrates through the support (2), the grinding shaft (20) is disposed between the upper portions of the supports (2) on both sides and is rotatably connected to the support (2) through a bearing, one end of the grinding shaft (20) is fixedly connected to the output end of the grinding motor (19), and the grinding wheel (21) is disposed in the middle of the grinding shaft (20) and is fixedly connected to the grinding shaft (20).
6. The lens holder for a lens grinder according to claim 1, further comprising an air drying fan (22), wherein the air drying fan (22) is provided at an upper side of the work table (1) and fixedly connected to the work table (1) through the work table (1).
7. The lens holder for a lens grinder according to claim 1, further comprising a lighting lamp (23), wherein the lighting lamp (23) is provided at an upper portion of the stand (2) corresponding to the air drying fan (22) and is fixedly connected to the stand (2).
8. The lens holder for a lens grinder according to claim 1, further comprising a stock water tank (24), the stock water tank (24) being provided at the other side of the upper portion of the work table (1) and detachably connected to the work table (1).
9. The lens holder for a lens grinder according to claim 1, further comprising four of the stand-offs (25), the four stand-offs (25) being respectively provided at four corners of the lower end of the table (1) and fixedly connected to the table (1), the table (1) being erected on the ground through the stand-offs (25).
10. The lens clamp for the lens grinder according to claim 1, further comprising an electric control device (26), wherein the electric control device (26) is disposed at one side of the working table (1) and is fixedly connected with the working table (1), and the electric control device (26) is electrically connected with the lifting cylinder (8), the cooling water pump (15), the grinding motor (19), the air drying fan (22) and the illuminating lamp (23).
CN202022374756.6U 2020-10-22 2020-10-22 Lens clamp for lens grinding machine Active CN213917489U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022374756.6U CN213917489U (en) 2020-10-22 2020-10-22 Lens clamp for lens grinding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022374756.6U CN213917489U (en) 2020-10-22 2020-10-22 Lens clamp for lens grinding machine

Publications (1)

Publication Number Publication Date
CN213917489U true CN213917489U (en) 2021-08-10

Family

ID=77224509

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022374756.6U Active CN213917489U (en) 2020-10-22 2020-10-22 Lens clamp for lens grinding machine

Country Status (1)

Country Link
CN (1) CN213917489U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114290179A (en) * 2022-01-06 2022-04-08 重庆潮汐眼镜有限公司 Glasses polishing processingequipment
CN114939785A (en) * 2022-04-01 2022-08-26 丹阳市雷登智能科技有限公司 Spectacle lens processing equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114290179A (en) * 2022-01-06 2022-04-08 重庆潮汐眼镜有限公司 Glasses polishing processingequipment
CN114939785A (en) * 2022-04-01 2022-08-26 丹阳市雷登智能科技有限公司 Spectacle lens processing equipment
CN114939785B (en) * 2022-04-01 2023-12-05 丹阳市雷登智能科技有限公司 Spectacle lens processing equipment

Similar Documents

Publication Publication Date Title
CN213917489U (en) Lens clamp for lens grinding machine
CN206475020U (en) A kind of multistation burnishing device
CN211589627U (en) Automobile part polishing device with adjustable angle
CN218285082U (en) Grinding test bench capable of being positioned
CN208514261U (en) Burnishing device is used in engine crankshaft processing
CN212735413U (en) Full-automatic shaped glass edging machine
CN214054172U (en) Positioning jig for installing memory chip
CN215036431U (en) A sweep ray apparatus for preparation of cell-phone glass
CN213289874U (en) Spherical polishing device for ceramic preparation
CN208961639U (en) A kind of Special Automatic grinding apparatus of aluminium cylinder
CN208826259U (en) Grinding device is used in a kind of production of metal product
CN220445930U (en) Steering column side polishing device
CN219901534U (en) Fine grinding polisher for lens processing
CN214559640U (en) Metal pipe fitting material section equipment of polishing
CN218115577U (en) Adjustable optical filter coating tool clamp
CN213289732U (en) Polishing device for optical lens processing
CN220863678U (en) Clamping mechanism for machining fast-positioning worm
CN220548066U (en) Angle-adjustable cambered surface polisher
CN220051193U (en) Plate glass corner edging device
CN219465646U (en) Polishing device for machining parts of fitness equipment
CN214603552U (en) Automobile parts grinding device convenient to angle regulation
CN219359085U (en) Processing device for arc-shaped surface of steel template
CN211029389U (en) Automatic grinding equipment for gas cylinder
CN114434362B (en) Sucking disc centering clamp for fixing composite cylinder or cover
CN220761924U (en) Cylindrical grinding machine with milling cutter positioning function

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant