CN106624890A - Machining fixture - Google Patents
Machining fixture Download PDFInfo
- Publication number
- CN106624890A CN106624890A CN201611175148.4A CN201611175148A CN106624890A CN 106624890 A CN106624890 A CN 106624890A CN 201611175148 A CN201611175148 A CN 201611175148A CN 106624890 A CN106624890 A CN 106624890A
- Authority
- CN
- China
- Prior art keywords
- hole
- base plate
- machine work
- clamping tool
- work according
- 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.)
- Granted
Links
- 238000003754 machining Methods 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 239000004744 fabric Substances 0.000 claims 1
- 230000008859 change Effects 0.000 description 6
- 238000009826 distribution Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a machining fixture. The machining fixture comprises a bottom plate, wherein the bottom plate is rectangular; stepped fixing holes are formed in four corners of the bottom plate; a plurality of positioning pin holes are formed in the bottom plate; one end of a positioning pin is arranged in two of the positioning pin holes; a fixing disc is arranged at the other end of the positioning pin in a sleeving manner; totally two side plates are fixedly arranged on the bottom plate through bolts; center holes are formed in the side plates; center mechanisms are arranged in the center holes; and an adjustable lifting jack, an infrared counter and a locking mechanism are arranged on the bottom plate. The positioning pin, the adjustable lifting jack, the pressing plate, two centers and the locking mechanism are arranged on the bottom plate of the fixture, some functions can be selected according to needs when the fixture is used, and unnecessary functions are removed. The problem that the fixture needs to be frequently replaced during workpiece machining is solved, the replacement frequency is reduced, and the machining efficiency is improved. The machining fixture disclosed by the invention has the characteristics of high universality and convenience and rapidness in use.
Description
Technical field
The present invention relates to machine tools technical field, and in particular to a kind of clamping tool for machine work.
Background technology
Fixture is processed to it and plays particularly important effect, fixture as prerequisite equipment in mechanical processing process
Positioning is played to workpiece(Limit the degree of freedom of workpiece)With the function of clamping, particularly rough machined part shape is different,
Need to design different fixtures, so the fixture for needing is relatively more, fixture management gets up also relatively troublesome.
Existing frock clamp uses cumbersome, and versatility is not strong, typically all one work of single part
Sequence needs a fixture, the product difference of processing then to need to change different clamp bodies, and fixture is also suitable fiber crops when changing
It is tired, installed in platen face when to proofread, rule, equality of fetching water, so using inconvenience extremely, have a strong impact on
The efficiency of machining.
The content of the invention
Present invention aims to the defect and deficiency of prior art, there is provided a kind of clamping tool for machine work.
In order to solve the problems of background technology, a kind of clamping tool for machine work of the present invention, it includes base plate, described
Base plate is rectangle, and four angles of the base plate are provided with step-like fixing hole, and multiple dowel holes are arranged on the base plate, wherein
One end of alignment pin is installed, the other end of the alignment pin is arranged fixed disk in 2 dowel holes, spiral shell is passed through on the base plate
Bolt is fixed with side plate, and the side plate has 2, and center hole is provided with the side plate, and in the center hole tip mechanism is provided with,
The substrate is additionally provided with scalable jack, infrared counting device, retaining mechanism.
Preferably, the dowel hole is multiple, and dowel hole is 4 rows, and the pitch-row for often arranging adjacent two dowel hole is
100mm。
Preferably, the fit clearance of the dowel hole and alignment pin is 0.02mm, the dowel hole and positioning pin joint
The roughness of contact portion position is 0.8, and the fit clearance and roughness can easily change alignment pin, while also can effectively protect
The accuracy of card positioning.
Preferably, side plate being symmetrical arranged relative to base plate.
Preferably, the tip mechanism includes top and tie down screw, and the top cylindrical end arranges groove, the lock
One end of tight screw rod arranges protruding block, and the protruding block is arranged in groove.
Preferably, the scalable jack includes fixing bolt, thimble, spring, and described fixing bolt one end passes through spiral shell
Stricture of vagina is fixed on base plate, and the thimble is located at fixing bolt by being fixedly connected the fixing bolt other end, the spring housing
Outside, by the height of rotary fixing screw bolt the height of scalable jack can be adjusted.
Preferably, dowel hole outer ring circle distribution has screwed hole, and screwed hole is 4.
Preferably, the tip mechanism is relative to the concentric of base plate the right and left and is symmetrical arranged, and left side tip mechanism leads to
Cross and be welded and fixed, the right tip mechanism one end is provided with cylinder, and the stroke of the cylinder is 120mm.
Preferably, to angular distribution, the retaining mechanism includes pressing plate and clamping body to the retaining mechanism, and the clamping body sets
Put in the upper end of pressing plate.
The present invention has the beneficial effect that:Alignment pin, scalable jack, pressing plate, two top, locks are provided with the base plate of fixture
Tight mechanism, can as needed select when in use some functions, and unnecessary is dismantled, and scalable jack can basis
The height of part is suitably adjusted, and is got up also easily by threaded adjusting, and one end is top for fixed structure, and the other end is top for gas
Cylinder quickly adds locking structure, can carry out alignment to the hole of workpiece easily and fast and step up.Simultaneously base plate infrared counting device can be automatic
Count the piece count of processing.Dowel hole is multiple, and pitch-row is 100mm, and the design can be adjusted according to the position in the hole of workpiece
The position of section alignment pin positions to workpiece.Solve the problems, such as frequently to change fixture when workpiece is processed, reduce and change
Number of times, improve machining efficiency.The characteristics of present invention has highly versatile, is easy to use quick.
Description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the side view of the present invention;
Fig. 3 is the side plate assembling assumption diagram of the present invention;
Fig. 4 is the scalable jack structure figure of the present invention;
Fig. 5 is the tip mechanism structure chart of the present invention;
Fig. 6 is the alignment pin installation position Local map of the present invention.
Description of reference numerals:It is base plate 1, step-like fixing hole 2, fixed disk 3, dowel hole 4, alignment pin 5, side plate 6, top
Hole 7, tip mechanism 8, top 9, groove 10, protruding block 11, scalable jack 12, fixing bolt 13, thimble 14, screwed hole
15th, cylinder 16, infrared counting device 17, retaining mechanism 18, spring 19, pressing plate 20, clamping body 21.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is further illustrated.
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing and it is embodied as
Mode, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain this
Invention, is not intended to limit the present invention.
As shown in figures 1 to 6, this specific embodiment is adopted the following technical scheme that:A kind of clamping tool for machine work, it includes bottom
Plate 1, the base plate 1 is rectangle, and four angles of the base plate 1 are provided with step-like fixing hole 2, step-like fixing hole 2 be used for and
The workbench connection of lathe, arranges multiple dowel holes 4 for installing alignment pin 5, wherein 2 alignment pins on the base plate 1
One end of alignment pin 5 is installed, the other end of the alignment pin 5 is arranged fixed disk 3, and fixed disk 3 is used for fixed locating stud in hole 4
5, side plate 6 has been bolted on the base plate 1, the side plate 6 has 2, and center hole 7 is provided with the side plate 6, described
Tip mechanism 8 is provided with center hole 7, the base plate 1 is additionally provided with above scalable jack 12, infrared counting device 17, lock
Tight mechanism 18.Infrared counting device 17 is used for the number of packages to processing and counts, and conveniently can accurately calculate processed workpiece
Number of packages, convenient production reduces cost of labor.The dowel hole 4 is multiple, and dowel hole 4 is 4 rows, often arranges adjacent two and determines
The pitch-row of position pin-and-hole 4 is 100mm, can regioselective pin-and-hole 4 according to actual needs position.The dowel hole 4 and alignment pin 5
Fit clearance be 0.8 for the roughness of 0.02mm, the dowel hole 4 and the contact site of alignment pin 5, the fit clearance and thick
Rugosity can easily change alignment pin 5 while also can effectively ensure that the accuracy of positioning.The side plate 6 is relative to base plate
1 is symmetrical arranged.The tip mechanism 8 includes top 9 and tie down screw 10, and top 9 cylindrical end arranges groove 10, institute
The one end for stating tie down screw 10 arranges protruding block 11, and the protruding block 11 is arranged in groove 10.The scalable jack 12
Including fixing bolt 13, thimble 14, spring 19, the one end of the fixing bolt 13 is threadably secured on base plate 1, the thimble
14 by being fixedly connected the other end of the fixing bolt 13, and the spring 19 is sheathed on outside fixing bolt 13, solid by rotation
Determining the height of bolt 13 can adjust the height of scalable jack 12.The outer ring circle distribution of the dowel hole 4 has screwed hole
15, screwed hole 15 is 4, and screwed hole 15 is used to fix fixed disk 3 by screw, so as to realize the fixation to alignment pin 5.It is described
Tip mechanism 8 is relative to the concentric of the right and left of base plate 1 and is symmetrical arranged, and left side tip mechanism 8 by being welded and fixed, push up by the right
The one end of sharp mechanism 8 is provided with cylinder 16, and tip mechanism 8 is arranged on the same line, and workpiece phase is can effectively ensure that in hole machined
For the symmetry in hole, the stroke of the cylinder 16 is 120mm, and moving forward and backward for cylinder 16 can be realized to tip mechanism 8
Quickly hold out against and unclamp.The retaining mechanism 18 is to angular distribution, and the retaining mechanism 18 includes pressing plate 20 and clamping body 21, described
Clamping body 21 is arranged on the upper end of pressing plate 20, and clamping body 21 quickly can be clamped to pressing plate 20.
Embodiment:When using, by the base plate 1 of fixture by way of routing, by X and Y-direction proofreading quality and vertically, so
Secured fixtures on the work top of equipment by step-like fixing hole 2 afterwards, according to actual needs will be fixed when workpiece is processed
Position pin 5, side plate 6, tip mechanism 8, scalable jack 12, each module installation of retaining mechanism 18, the position of dowel hole 4
For multiple, the position of alignment pin 5 can be installed according to actual position, be mounted and assembled after finishing, workpiece is fixed with fixture
And be processed after clamping.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that for clarity those skilled in the art should
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (9)
1. a kind of clamping tool for machine work, it is characterised in that:It includes base plate(1), the base plate(1)For rectangle, the base plate(1)
Four angles be provided with step-like fixing hole(2), the base plate(1)It is upper that multiple dowel holes are set(4), wherein 2 alignment pins
Hole(4)Alignment pin is inside installed(5)One end, the alignment pin(5)The other end be arranged fixed disk(3), the base plate(1)On
It has been bolted side plate(6), the side plate(6)There are 2, the side plate(6)On be provided with center hole(7), it is described top
Hole(7)Inside it is provided with tip mechanism(8), the base plate(1)Scalable jack is additionally provided with above(12), infrared counting device
(17), retaining mechanism(18).
2. a kind of clamping tool for machine work according to claim 1, it is characterised in that:The dowel hole(4)It is fixed for multiple
Position pin-and-hole(4)For 4 rows, adjacent two dowel hole is often arranged(4)Pitch-row be 100mm.
3. a kind of clamping tool for machine work according to claim 1, it is characterised in that:The dowel hole(4)And alignment pin
(5)Fit clearance be 0.02mm, the dowel hole(4)And alignment pin(5)The roughness of contact site is 0.8.
4. a kind of clamping tool for machine work according to claim 1, it is characterised in that:The side plate(6)Relative to base plate(1)
Be symmetrical arranged.
5. a kind of clamping tool for machine work according to claim 1, it is characterised in that:The tip mechanism(8)Including top
(9)And tie down screw(10), it is described top(9)Cylindrical end arrange groove(10), the tie down screw(10)One end arrange
Protruding block(11), the protruding block(11)It is arranged on groove(10)It is interior.
6. a kind of clamping tool for machine work according to claim 1, it is characterised in that:The scalable jack(12)Including
Fixing bolt(13), thimble(14), spring(19), the fixing bolt(13)One end is threadably secured in base plate(1)On, institute
State thimble(14) by being fixedly connected the fixing bolt(13)The other end, the spring(19)It is sheathed on bolt(13)It is outside.
7. a kind of clamping tool for machine work according to claim 1, it is characterised in that:The dowel hole(4)Outer ring circumference
Screwed hole is distributed with(15), screwed hole(15)For 4.
8. a kind of clamping tool for machine work according to claim 1, it is characterised in that:The tip mechanism(8)The bottom of relative to
Plate(1)The right and left concentric and it is symmetrical arranged, left side tip mechanism(8)By being welded and fixed, the right tip mechanism(8)One end
It is provided with cylinder(16), the cylinder(16)Stroke be 120mm.
9. a kind of clamping tool for machine work according to claim 1, it is characterised in that:The retaining mechanism(18)Diagonal point
Cloth, the retaining mechanism(18)Including pressing plate(20)And clamping body(21), the clamping body(21)It is arranged on pressing plate(20)It is upper
End.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611175148.4A CN106624890B (en) | 2016-12-19 | 2016-12-19 | A kind of clamping tool for machine work |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611175148.4A CN106624890B (en) | 2016-12-19 | 2016-12-19 | A kind of clamping tool for machine work |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106624890A true CN106624890A (en) | 2017-05-10 |
CN106624890B CN106624890B (en) | 2018-12-28 |
Family
ID=58823150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611175148.4A Active CN106624890B (en) | 2016-12-19 | 2016-12-19 | A kind of clamping tool for machine work |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106624890B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106975947A (en) * | 2017-05-31 | 2017-07-25 | 宿州学院 | A kind of grip device of reasonable in design |
CN107695906A (en) * | 2017-09-29 | 2018-02-16 | 昌河飞机工业(集团)有限责任公司 | A kind of part detent mechanism |
CN109128711A (en) * | 2018-10-10 | 2019-01-04 | 北京北机床股份有限公司 | It is a kind of to utilize bent plate processing thin wall component aluminium arm processing method and tooling |
CN109317712A (en) * | 2017-08-01 | 2019-02-12 | 上海电气电站设备有限公司 | For processing the Boring machine in steam turbine rotor coupling device hole |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201317649Y (en) * | 2008-11-26 | 2009-09-30 | 浙江吉利汽车有限公司 | Adjustable jack |
CN104842186A (en) * | 2015-04-23 | 2015-08-19 | 苏州市职业大学 | Crankshaft milling key seat clamp |
CN104875044A (en) * | 2015-05-27 | 2015-09-02 | 佛山市普拉迪数控科技有限公司 | Base-adjustable long workpiece fixture |
CN205466058U (en) * | 2016-01-25 | 2016-08-17 | 湖南南车时代电动汽车股份有限公司 | Flexible frock |
CN205497067U (en) * | 2016-04-20 | 2016-08-24 | 云南机电职业技术学院 | Multi -functional main shaft flange modular fixture of lathe |
-
2016
- 2016-12-19 CN CN201611175148.4A patent/CN106624890B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201317649Y (en) * | 2008-11-26 | 2009-09-30 | 浙江吉利汽车有限公司 | Adjustable jack |
CN104842186A (en) * | 2015-04-23 | 2015-08-19 | 苏州市职业大学 | Crankshaft milling key seat clamp |
CN104875044A (en) * | 2015-05-27 | 2015-09-02 | 佛山市普拉迪数控科技有限公司 | Base-adjustable long workpiece fixture |
CN205466058U (en) * | 2016-01-25 | 2016-08-17 | 湖南南车时代电动汽车股份有限公司 | Flexible frock |
CN205497067U (en) * | 2016-04-20 | 2016-08-24 | 云南机电职业技术学院 | Multi -functional main shaft flange modular fixture of lathe |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106975947A (en) * | 2017-05-31 | 2017-07-25 | 宿州学院 | A kind of grip device of reasonable in design |
CN106975947B (en) * | 2017-05-31 | 2019-01-29 | 宿州学院 | A kind of grip device |
CN109317712A (en) * | 2017-08-01 | 2019-02-12 | 上海电气电站设备有限公司 | For processing the Boring machine in steam turbine rotor coupling device hole |
CN107695906A (en) * | 2017-09-29 | 2018-02-16 | 昌河飞机工业(集团)有限责任公司 | A kind of part detent mechanism |
CN109128711A (en) * | 2018-10-10 | 2019-01-04 | 北京北机床股份有限公司 | It is a kind of to utilize bent plate processing thin wall component aluminium arm processing method and tooling |
CN109128711B (en) * | 2018-10-10 | 2021-01-05 | 北京北一机床股份有限公司 | Method and tool for machining thin-wall part aluminum arm by utilizing bent plate |
Also Published As
Publication number | Publication date |
---|---|
CN106624890B (en) | 2018-12-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106624890A (en) | Machining fixture | |
CN201735864U (en) | Outfit for processing precise indexing inner wall hole of large annular workpiece | |
CN102009212A (en) | Rotary fixture special for drilling automobile flywheel shell and machining method | |
CN105234712B (en) | A kind of spindle manual | |
CN108772737B (en) | Bearing seat turning process and fixture thereof | |
CN205888628U (en) | A vertical numerical control milling machine fixture for processing connecting rod cross recess | |
JP2013154408A (en) | Level adjustment jig, plate material holding device having the level adjustment jig, and method of adjusting arrangement of plate material | |
US20160200356A1 (en) | Method for drilling a steering knuckle casting | |
CN105290527A (en) | Milling tooth clamping tool for annulus gears of wind power generation equipment | |
CN106541290A (en) | A kind of jig of the circumferential registration for thin-wall part processing | |
CN102990166A (en) | Gear shaft machining method and gear shaft clamping tool used in method | |
JP2006218567A (en) | Workpiece positioning device | |
CN103949909A (en) | CNC (computer numerical control) machined spherical piece combined clamp and clamping method | |
CN105234701A (en) | Special tool clamp for wind driven generator one-piece bearing pedestal casting and machining technology | |
CN111702521A (en) | Special-shaped part machining method, clamp and clamp design method | |
CN202985123U (en) | Clamping positioning device for shaft and machine tool with the same | |
CN103158018B (en) | A kind of ultralong thin walled zirconium pipe mutual upright opening system milling built-up jig | |
CN102126139B (en) | Tilting-type operating platform used for processing three-dimensional hole of die | |
CN203509647U (en) | Numerical control milling machine clamp for milling chamfers of bottom plates | |
CN104308625A (en) | Cam drilling clamp | |
CN106002379B (en) | Microscope zoom compensates microscope base boring method | |
CN213889123U (en) | Swing arm machining positioning fixture | |
CN105108512A (en) | Faceplate angle iron type lathe fixture | |
JP2009018322A (en) | Pedestal for joint assembling | |
CN209407966U (en) | A kind of modularization dovetail fixture group |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB03 | Change of inventor or designer information |
Inventor after: Lei Huasong Inventor after: Cai Lisheng Inventor before: Lei Huasong |
|
CB03 | Change of inventor or designer information | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20181105 Address after: 523000 Dongguan village, Qingxi Town, Guangdong Province Applicant after: Dongguan one hardware products Co., Ltd. Address before: 523000 six Dongbao 4B, Dongbao Road, Dongguan. Applicant before: Lei Huasong |
|
TA01 | Transfer of patent application right | ||
GR01 | Patent grant | ||
GR01 | Patent grant |