CN103213047A - Integrated precision grinding system and method for extra-large spherical surface - Google Patents
Integrated precision grinding system and method for extra-large spherical surface Download PDFInfo
- Publication number
- CN103213047A CN103213047A CN2013101346888A CN201310134688A CN103213047A CN 103213047 A CN103213047 A CN 103213047A CN 2013101346888 A CN2013101346888 A CN 2013101346888A CN 201310134688 A CN201310134688 A CN 201310134688A CN 103213047 A CN103213047 A CN 103213047A
- Authority
- CN
- China
- Prior art keywords
- grinding
- grinding tool
- emery wheel
- ground
- spheroid
- 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
Images
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses an integrated precision grinding system and an integrated precision grinding method for an extra-large spherical surface. The grinding system comprises a sphere driving part, a first grinding wheel grinding tool, a second grinding wheel grinding tool, a third grinding wheel grinding tool, an abrasion grinding tool and a detection part, which are in the same X, Y and Z right-angled coordinate system. The grinding method comprises the following steps that the sphere driving part drives a ground sphere to rotate, the second and third grinding wheel grinding tools grind the left and right sides of the rotating ground sphere, the first grinding wheel grinding tool starts grinding the ground sphere after the ground sphere is ground by a certain depth by the second and third grinding wheel grinding tools, the second and third grinding wheel grinding tools stop grinding when a grinding depth is to be reached, the first grinding wheel grinding tool continues grinding the ground sphere until the size of the sphere is detected to meet a requirement, and the abrasion grinding tool performs abrasion treatment on the ground sphere. The method is used for the integrated precision grinding machining of distributed grinding, abrasion and detection of the extra-large ground sphere under a once mounting condition.
Description
Technical field
What the present invention relates to is sphere accurate grinding device and method in a kind of machine tool technology field, specifically is the integrated accurate grinding system and method for a kind of super-huge sphere.
Background technology
Super-huge high-precision sphere is the critical component in fluid, the gas control equipment (as large-scale ball valve) in the Important Project such as large-scale petroleum natural gas transport, large-scale water generating.The diameter of present super-huge spheroid has surpassed 2500mm, and weight surpasses 20t.Because the requirement of sealing and the requirement of service behaviour, this super-huge spheroid is all very high to surface roughness and geometric accuracy requirement, so spherome surface must be through using behind accurate grinding processing and the precise finiss.Geometric accuracy (sphericity) requires height, the surface roughness requirement is high, the grinding area is big, is the technical barrier of this critical component processing.
The accurate grinding processing of super-huge spheroid, the method that generally adopts is at present: spheroid rotates around horizontal center line, emery wheel grinding tool system generally is arranged in the back of processed spheroid, and the rotation centerline of emery wheel grinding tool and the rotation centerline of processed spheroid must be in the same plane and intersect vertically mutually and could guarantee grinding accuracy.Emery wheel grinding tool system by servomotor or stepper motor drive by after do feed motion forward.The rolling movement that the rotatablely moving of high speed rotary motion by the cup emery wheel grinding tool and spheroid synthesized is realized the accurate grinding processing of sphere.
Find that through literature search application number is to prior art: 200610050360.8, name is called the Chinese patent application of " detecting the numerical control spheric grinding machine automatically ", mainly is to be provided with automatic detection device on lathe, has realized the online automatic detection of workpiece.Yet,, adopt the very difficult high efficiency accurate grinding of realizing this super-huge sphere of single grinding tool numerical control spheric grinding machine of this class special use because above-mentioned super-huge sphere size is big, Heavy Weight.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the integrated accurate grinding of a kind of super-huge sphere system is provided, to be implemented under the condition of once mounting, finish the integrated precise grinding of distributed grinding to super-huge spheroid, grinding, detection, and obtain to be ground the better surface roughness of sphere; Another object of the present invention is to, a kind of integrated precise grinding process of super-huge sphere that adopts described grinding system to implement is provided.
The present invention is achieved by the following technical solutions:
The integrated accurate grinding of a kind of super-huge sphere system, it comprises: at same X, Y, ball drive parts in the Z rectangular coordinate system, the first emery wheel grinding tool, the second emery wheel grinding tool, the 3rd emery wheel grinding tool, grinding tool and detection part, this X, Y, the Z rectangular coordinate system comprises initial point O, horizontal coordinate axis X, horizontal coordinate axis Y and vertical coordinate axis Z, wherein, the centre of sphere that is ground spheroid of super-huge sphere overlaps with initial point O, the rotation centerline of ball drive parts overlaps with horizontal coordinate axis X, the rotation centerline of the first emery wheel grinding tool and the rotation centerline of grinding tool overlap with vertical coordinate axis Z, the rotation centerline of the rotation centerline of the second emery wheel grinding tool and the 3rd emery wheel grinding tool overlaps with the auxiliary reference axis Y ' of level, the auxiliary reference axis Y ' of this level and horizontal coordinate axis X are at angle and intersect at initial point O, the measurement point of detection part remains on the horizontal coordinate axis Y, the ball drive parts, the first emery wheel grinding tool, the second emery wheel grinding tool, the rotation centerline of the 3rd emery wheel grinding tool and grinding tool intersects at initial point O.
Described ball drive parts drive when being ground the spheroid installation and are ground spheroid along horizontal coordinate axis X move left and right, the centre of sphere that realization is ground spheroid overlaps with the initial point O of X, Y, Z rectangular coordinate system, is ground after the spheroid installation these ball drive parts and can drives and be ground spheroid and rotate around horizontal coordinate axis X.
The described first emery wheel grinding tool is arranged on the below that is ground spheroid, its rotating diameter covers the whole whole sphere width that are ground spheroid, this first emery wheel grinding tool rotates around vertical coordinate axis Z, and Z upwards does feed motion along the vertical coordinate axis, and grinding is ground the whole sphere of spheroid.
The rotating diameter of described second emery wheel grinding tool and the 3rd emery wheel grinding tool is less than the rotating diameter of the first emery wheel grinding tool, the second emery wheel grinding tool is arranged on the right lateral side that is ground spheroid, the 3rd emery wheel grinding tool is arranged on the front left side that is ground spheroid, the second emery wheel grinding tool and the 3rd emery wheel grinding tool rotate around the auxiliary reference axis Y ' of level, and do feed motion respectively to the centre of sphere along the auxiliary reference axis Y ' of level, grinding is ground the sphere of the left and right sides certain width of spheroid respectively.
Described grinding tool is arranged on the top that is ground spheroid, its rotating diameter covers the whole whole sphere width that are ground spheroid, this grinding tool rotates around vertical coordinate axis Z, and does feed motion downwards along vertical coordinate axis Z, grinds the whole sphere that is ground spheroid.
Described detection part is arranged on the back that is ground spheroid.
Another technical scheme of the present invention is:
A kind of integrated precise grinding process of super-huge sphere that adopts described grinding system to implement, it is characterized in that, require and control program according to grinding process, described ball drive parts at first drive the described spheroid rotation that is ground, described second emery wheel grinding tool and the 3rd emery wheel grinding tool carry out grinding prior to the described first emery wheel grinding tool to the left and right sides that is ground spheroid of rotation, the first emery wheel grinding tool begins startup and carries out grinding to being ground spheroid behind the certain depth to be ground, when grinding depth is about to arrive, this second emery wheel grinding tool and the 3rd emery wheel grinding tool stop grinding prior to the first emery wheel grinding tool, the first emery wheel grinding tool continues to carry out grinding to being ground spheroid, till the detection size conforms grinding process that detection part obtains requires, last described grinding tool carries out milled processed to obtain better surface roughness to being ground spheroid, finishes distributed grinding thereby realization is ground spheroid under condition of once mounting, the integrated precise grinding of grinding and detecting.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention is provided with many cover emery wheel grinding tools, grinding tool and detection system in same grinding system, thereby make the super-huge spheroid that is ground under condition of once mounting, realize distributed grinding, grinding, the incorporate integrated precise grinding of detection, greatly improved the efficient of grinding.
2, grinding and the grinding to super-huge sphere finished in a clamping among the present invention, realized online detection simultaneously, and therefore super-huge sphere dimensional accuracy height, the surface roughness of processing are good.
Description of drawings
Fig. 1 is a system architecture schematic diagram of the present invention.
The specific embodiment
Below in conjunction with embodiment the present invention is elaborated.
As shown in Figure 1, the integrated accurate grinding of super-huge sphere of the present invention system comprises: ball drive parts 3, the first emery wheel grinding tool 2, the second emery wheel grinding tool 4, the 3rd emery wheel grinding tool 7, grinding tool 6 and detection part 5, they are in same X, Y, the Z rectangular coordinate system, and this X, Y, Z rectangular coordinate system comprise initial point O, horizontal coordinate axis X, horizontal coordinate axis Y and vertical coordinate axis Z.The centre of sphere that is ground spheroid 1 of described super-huge sphere overlaps with initial point O, at this X, Y, in the Z rectangular coordinate system, the rotation centerline of ball drive parts 3 overlaps with horizontal coordinate axis X, the rotation centerline of the rotation centerline of the first emery wheel grinding tool 2 and grinding tool 6 overlaps with vertical coordinate axis Z, the rotation centerline of the rotation centerline of the second emery wheel grinding tool 4 and the 3rd emery wheel grinding tool 7 overlaps with the auxiliary reference axis Y ' of level, the auxiliary reference axis Y ' of this level and horizontal coordinate axis X are at angle (in the present embodiment, both become 45 degree) and intersect at initial point O, the measurement point of detection part 5 remains on the horizontal coordinate axis Y, ball drive parts 3, the first emery wheel grinding tool 2, the second emery wheel grinding tool 4, the rotation centerline of five parts such as the 3rd emery wheel grinding tool 7 and grinding tool 6 intersects at initial point O.
When being ground spheroid 1 installation, described ball drive parts 3 can drive and be ground spheroid 1 along horizontal coordinate axis X move left and right (F), the centre of sphere that realization is ground spheroid 1 overlaps with the initial point O of X, Y, Z rectangular coordinate system, is ground after spheroid 1 installation these ball drive parts 3 and can drives and be ground spheroid 1 around horizontal coordinate axis X rotate (n).
The described first emery wheel grinding tool 2 is arranged on the below that is ground spheroid 1, its rotating diameter covers the whole whole sphere width that are ground spheroid 1, this first emery wheel grinding tool 2 is around vertical coordinate axis Z rotate (n1), and upwards do feed motion (F1) along vertical coordinate axis Z, grinding is ground the whole sphere of spheroid 1.
The rotating diameter of described second emery wheel grinding tool 4 and the 3rd emery wheel grinding tool 7 is slightly smaller than the rotating diameter of the first emery wheel grinding tool 2, the second emery wheel grinding tool 4 is arranged on the right lateral side that is ground spheroid 1, the 3rd emery wheel grinding tool 7 is arranged on the front left side that is ground spheroid 1, the auxiliary reference axis Y ' of the second emery wheel grinding tool 4 and the level of the 3rd emery wheel grinding tool 7 in X, Y, Z rectangular coordinate system rotate (n2, n3), and do feed motion (F2, F3) respectively to the centre of sphere along the auxiliary reference axis Y ' of level, grinding is ground the sphere of the left and right sides certain width of spheroid 1 respectively.
Described grinding tool 6 is arranged on the top that is ground spheroid 1, its rotating diameter covers the whole whole sphere width that are ground spheroid 1, the vertical coordinate axis Z of this grinding tool 6 in X, Y, Z rectangular coordinate system rotate (n4), and do feed motion (F4) downwards along vertical coordinate axis Z, grind the whole sphere that is ground spheroid 1.
Described detection part 5 is arranged on the back that is ground spheroid 1, and its measurement point remains on the horizontal coordinate axis Y.
The integrated precise grinding process of super-huge sphere that adopts grinding system of the present invention to implement is, with after being ground spheroid 1 and installing of described super-huge sphere integrated accurate grinding system and super-huge sphere, require and control program according to grinding process, described ball drive parts 3 at first drive the described spheroid 1 that is ground and rotate with n speed, described second emery wheel grinding tool 4 and the 3rd emery wheel grinding tool 7 carry out grinding prior to the left and right sides that is ground spheroid 1 of 2 pairs of rotations of the described first emery wheel grinding tool, the first emery wheel grinding tool 2 begins startup and carries out grinding to being ground spheroid 1 behind the certain depth to be ground, when grinding depth is about to arrive, this second emery wheel grinding tool 4 and the 3rd emery wheel grinding tool 7 stop grinding prior to the first emery wheel grinding tool 2, the first emery wheel grinding tool 2 continues to carry out grinding to being ground spheroid 1, till the detection size conforms grinding process that detection part 5 obtains requires, 6 pairs of last described grinding tools are ground spheroid 1 and carry out milled processed to obtain better surface roughness, finish distributed grinding thereby realization is ground spheroid 1 under condition of once mounting, the integrated precise grinding of grinding and detecting.
Claims (7)
1. the integrated accurate grinding of super-huge sphere system, it is characterized in that, described system comprises: at same X, Y, ball drive parts in the Z rectangular coordinate system, the first emery wheel grinding tool, the second emery wheel grinding tool, the 3rd emery wheel grinding tool, grinding tool and detection part, this X, Y, the Z rectangular coordinate system comprises initial point O, horizontal coordinate axis X, horizontal coordinate axis Y and vertical coordinate axis Z, wherein, the centre of sphere that is ground spheroid of super-huge sphere overlaps with initial point O, the rotation centerline of ball drive parts overlaps with horizontal coordinate axis X, the rotation centerline of the first emery wheel grinding tool and the rotation centerline of grinding tool overlap with vertical coordinate axis Z, the rotation centerline of the rotation centerline of the second emery wheel grinding tool and the 3rd emery wheel grinding tool overlaps with the auxiliary reference axis Y ' of level, the auxiliary reference axis Y ' of this level and horizontal coordinate axis X are at angle and intersect at initial point O, the measurement point of detection part remains on the horizontal coordinate axis Y, the ball drive parts, the first emery wheel grinding tool, the second emery wheel grinding tool, the rotation centerline of the 3rd emery wheel grinding tool and grinding tool intersects at initial point O.
2. the integrated accurate grinding of super-huge sphere according to claim 1 system, it is characterized in that, described ball drive parts drive when being ground the spheroid installation and are ground spheroid along horizontal coordinate axis X move left and right, the centre of sphere that realization is ground spheroid overlaps with the initial point O of X, Y, Z rectangular coordinate system, is ground after the spheroid installation these ball drive parts and can drives and be ground spheroid and rotate around horizontal coordinate axis X.
3. the integrated accurate grinding of super-huge sphere according to claim 1 system, it is characterized in that, the described first emery wheel grinding tool is arranged on the below that is ground spheroid, its rotating diameter covers the whole whole sphere width that are ground spheroid, this first emery wheel grinding tool rotates around vertical coordinate axis Z, and Z upwards does feed motion along the vertical coordinate axis, and grinding is ground the whole sphere of spheroid.
4. the integrated accurate grinding of super-huge sphere according to claim 1 system, it is characterized in that, the rotating diameter of described second emery wheel grinding tool and the 3rd emery wheel grinding tool is less than the rotating diameter of the first emery wheel grinding tool, the second emery wheel grinding tool is arranged on the right lateral side that is ground spheroid, the 3rd emery wheel grinding tool is arranged on the front left side that is ground spheroid, the second emery wheel grinding tool and the 3rd emery wheel grinding tool rotate around the auxiliary reference axis Y ' of level, and do feed motion respectively to the centre of sphere along the auxiliary reference axis Y ' of level, grinding is ground the sphere of the left and right sides certain width of spheroid respectively.
5. the integrated accurate grinding of super-huge sphere according to claim 1 system, it is characterized in that, described grinding tool is arranged on the top that is ground spheroid, its rotating diameter covers the whole whole sphere width that are ground spheroid, this grinding tool rotates around vertical coordinate axis Z, and do feed motion downwards along vertical coordinate axis Z, grind the whole sphere that is ground spheroid.
6. the integrated accurate grinding of super-huge sphere according to claim 1 system is characterized in that described detection part is arranged on the back that is ground spheroid.
7. integrated precise grinding process of super-huge sphere that adopts the described grinding system of claim 1 to implement, it is characterized in that, require and control program according to grinding process, described ball drive parts at first drive the described spheroid rotation that is ground, described second emery wheel grinding tool and the 3rd emery wheel grinding tool carry out grinding prior to the described first emery wheel grinding tool to the left and right sides that is ground spheroid of rotation, the first emery wheel grinding tool begins startup and carries out grinding to being ground spheroid behind the certain depth to be ground, when grinding depth is about to arrive, this second emery wheel grinding tool and the 3rd emery wheel grinding tool stop grinding prior to the first emery wheel grinding tool, the first emery wheel grinding tool continues to carry out grinding to being ground spheroid, till the detection size conforms grinding process that detection part obtains requires, last described grinding tool carries out milled processed to obtain better surface roughness to being ground spheroid, finishes distributed grinding thereby realization is ground spheroid under condition of once mounting, the integrated precise grinding of grinding and detecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310134688.8A CN103213047B (en) | 2013-04-18 | 2013-04-18 | Integrated precision grinding system and method for extra-large spherical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310134688.8A CN103213047B (en) | 2013-04-18 | 2013-04-18 | Integrated precision grinding system and method for extra-large spherical surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103213047A true CN103213047A (en) | 2013-07-24 |
| CN103213047B CN103213047B (en) | 2015-07-01 |
Family
ID=48811376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310134688.8A Expired - Fee Related CN103213047B (en) | 2013-04-18 | 2013-04-18 | Integrated precision grinding system and method for extra-large spherical surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103213047B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175222A (en) * | 2014-08-25 | 2014-12-03 | 上海交通大学 | Large-ball grinding trace feature image capturing device and sphericity judgment method |
| CN108890448A (en) * | 2018-09-10 | 2018-11-27 | 昆山市洛基苏产品整合设计有限公司 | A kind of multi-shaft processing machine |
| CN109605186A (en) * | 2018-12-04 | 2019-04-12 | 厦门大学深圳研究院 | A kind of sphere polishing machine |
| CN112276682A (en) * | 2020-10-20 | 2021-01-29 | 吴忠仪表有限责任公司 | Method for uniformly processing macroscopic hardness of ball valve vacuum cladding ball core |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2732002A1 (en) * | 1977-07-15 | 1979-01-25 | Thielenhaus Maschf | Grinding machine for spherical valve parts - uses cup grinding wheels intersecting axis of blank for constant setting |
| DE3202723A1 (en) * | 1981-02-04 | 1982-09-16 | Innse Innocenti Santeustacchio S.p.A., Brescia | Machine tool for machining spherical workpieces of large dimensions |
| JP2514539B2 (en) * | 1992-07-29 | 1996-07-10 | 豊工機株式会社 | Round spherical honing method |
| CN101053935A (en) * | 2007-05-31 | 2007-10-17 | 浙江湖州北道数控精密机械有限公司 | Numerically controlled ball grinding vehicle |
| CN101172330A (en) * | 2007-11-22 | 2008-05-07 | 上海交通大学 | High-rigidity turning spherical surface numerical control accurate grinding equipment |
| CN102172864A (en) * | 2011-03-02 | 2011-09-07 | 上海交通大学 | Method and equipment for precisely grinding high and hard large spherical-surface double grinding wheels |
-
2013
- 2013-04-18 CN CN201310134688.8A patent/CN103213047B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2732002A1 (en) * | 1977-07-15 | 1979-01-25 | Thielenhaus Maschf | Grinding machine for spherical valve parts - uses cup grinding wheels intersecting axis of blank for constant setting |
| DE3202723A1 (en) * | 1981-02-04 | 1982-09-16 | Innse Innocenti Santeustacchio S.p.A., Brescia | Machine tool for machining spherical workpieces of large dimensions |
| JP2514539B2 (en) * | 1992-07-29 | 1996-07-10 | 豊工機株式会社 | Round spherical honing method |
| CN101053935A (en) * | 2007-05-31 | 2007-10-17 | 浙江湖州北道数控精密机械有限公司 | Numerically controlled ball grinding vehicle |
| CN101172330A (en) * | 2007-11-22 | 2008-05-07 | 上海交通大学 | High-rigidity turning spherical surface numerical control accurate grinding equipment |
| CN102172864A (en) * | 2011-03-02 | 2011-09-07 | 上海交通大学 | Method and equipment for precisely grinding high and hard large spherical-surface double grinding wheels |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175222A (en) * | 2014-08-25 | 2014-12-03 | 上海交通大学 | Large-ball grinding trace feature image capturing device and sphericity judgment method |
| CN108890448A (en) * | 2018-09-10 | 2018-11-27 | 昆山市洛基苏产品整合设计有限公司 | A kind of multi-shaft processing machine |
| CN109605186A (en) * | 2018-12-04 | 2019-04-12 | 厦门大学深圳研究院 | A kind of sphere polishing machine |
| CN109605186B (en) * | 2018-12-04 | 2022-03-15 | 厦门大学深圳研究院 | Sphere polishing machine |
| CN112276682A (en) * | 2020-10-20 | 2021-01-29 | 吴忠仪表有限责任公司 | Method for uniformly processing macroscopic hardness of ball valve vacuum cladding ball core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103213047B (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102161169B (en) | Small-caliber aspherical composite precise processing method | |
| CN103213047B (en) | Integrated precision grinding system and method for extra-large spherical surface | |
| CN106552967B (en) | Large-scale high-precision numerical control fluted disc grinding machine | |
| CN107263323B (en) | Ball-end grinding wheel dressing method in place when superfine grinding special-shaped thin wall structural member | |
| CN104551976B (en) | Multifunctional self-adaption ball valve grinding miller | |
| CN103639842A (en) | Intelligent machining positioning system and method for radial drilling machine | |
| CN101829942A (en) | Machining center for polishing and grinding square rod | |
| CN102172864B (en) | Method and equipment for precisely grinding high and hard large spherical-surface double grinding wheels | |
| CN104526364A (en) | Vertical machining centre machine tool | |
| CN202185813U (en) | Double-end grinding shaft five-axle grinding center | |
| CN202984832U (en) | Gear edge-milling chamfering machine | |
| CN205600473U (en) | Numerical control hole external tooth grinding machine | |
| CN103995979B (en) | Grinding force computing method for aspheric surface parallel grinding machining | |
| CN205465503U (en) | Internal grinder | |
| CN102615293B (en) | Method for machining spherical surface of inner cavity of integral differential case of automobile | |
| CN206105624U (en) | Grinding wheel wear is automatic to be detected and compensation arrangement | |
| CN204843769U (en) | Cam grinding machine | |
| CN101100040A (en) | Ball core grinding method | |
| CN103192321A (en) | Special automatic regulating device for taper error of centerless internal grinding machine | |
| CN104175222B (en) | Large spherical surface grinding trace feature image harvester and sphericity method of discrimination | |
| CN103506955A (en) | Inner spherical surface ring precise grinding on-line detecting device and automatic inner spherical surface ring precise grinding on-line detecting method | |
| CN203197714U (en) | Numerical control grinding machine special for machining slewing bearing | |
| CN206253653U (en) | The horizontal truning fixture of milling machine | |
| CN203371359U (en) | Lens rough grinding machine | |
| CN205362690U (en) | Spheroidal sphere of ball valve, chamfer integration turning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20210418 |