CN106625337A - Root positioning mechanism for T root blade profile detection of steam turbine - Google Patents
Root positioning mechanism for T root blade profile detection of steam turbine Download PDFInfo
- Publication number
- CN106625337A CN106625337A CN201611234937.0A CN201611234937A CN106625337A CN 106625337 A CN106625337 A CN 106625337A CN 201611234937 A CN201611234937 A CN 201611234937A CN 106625337 A CN106625337 A CN 106625337A
- Authority
- CN
- China
- Prior art keywords
- blade root
- positioning
- root
- out against
- radial
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention provides a root positioning mechanism for T root blade profile detection of a steam turbine. The problems that the root is unreliable in positioning and clamping and the detection accuracy is influenced during the existing T root blade profile detection can be solved. The root positioning mechanism comprises a profile measuring tool bottom plate, wherein a positioning bottom plate is fixedly arranged on the profile measuring tool bottom plate; a root positioning assembly is fixedly arranged on the positioning bottom plate and comprises a positioning seat and radial positioning seats; the radial positioning seats symmetrical to each other are respectively arranged at two ends of the front side of the positioning seat; the positioning seat and the two radial positioning seats are of a concave structure of which the front side is open; a T root is positioned in the concave structure, and an upper shoulder surface of the T root is positioned by the two radial positioning seats; an inner radial surface of the T blade is positioned by the positioning seat; radial root tightening mechanisms are arranged on the positioning bottom plate and the front side of the concave structure; and the inner radial surface of the T root and the positioning seat are pressed by the radial root tightening mechanisms.
Description
Technical field
The present invention relates to the frock technical field of blade processing detection, more particularly, to the frock skill of turbine Blade Machining
The blade root detent mechanism of art field, specially T Steam Turbine shape blade root blade profile detection.
Background technology
T-shaped blade root due to simple structure, easy to process, assembling easily, reliable operation and to be widely applied to steam turbine short
In blade, T-shaped blade root profile of tooth is typically with when the type face to T-shaped blade root turbine blade is detected and blade root bottom surface is entered
Row positioning and clamping, but because the working face of T-shaped blade root is the upper surface of crossette 61, see Fig. 1 and Fig. 2, therefore using existing fixed
Position installation way has that positioning and clamping is insecure, so as to effect type face accuracy of detection and affects the blade quality of production.
The content of the invention
For the problems referred to above, the invention provides the blade root detent mechanism of T Steam Turbine shape blade root blade profile detection, its energy
Blade root positioning and clamping is unreliable when solving the problems, such as that existing T-shaped blade root blade profile is detected, affect accuracy of detection.
Its technical scheme is, the blade root detent mechanism of T Steam Turbine shape blade root blade profile detection, and it includes type face measuring tool bottom
Plate, it is characterised in that：Positioning plate is fixed with the type face measuring tool base plate, blade root positioning group is fixed with the positioning plate
Part, the blade root positioning component includes positioning seat and radial positioning seat, and it is mutually right to be respectively arranged at two ends with front side of the positioning seat
The radial positioning seat for claiming, the positioning seat and two radial positioning seats are in the open concave structure in front side, T-shaped blade root positioning
In the concave structure and two radial positioning seats position the crossette upper surface of T-shaped blade root, the positioning seat positions T
The interior sagittal plane of shape blade, is provided with blade root radial direction jacking mechanism, the leaf on the positioning plate, on front side of the concave structure
Root radial direction jacking mechanism compresses the interior sagittal plane of T-shaped blade root and the positioning seat.
Further, the radial positioning seat includes top plate portion and supporting part, and the top plate portion hangs down with supporting part in inverted L-shaped
It is direct-connected to be connected into entirety, the crossette upper surface of the bottom surface positioning T-shaped blade root of the top plate portion, top surface supporting blade root profile of tooth bottom surface.
Further, the positioning seat both sides are symmetrically fixed with side locating piece, and the side locating piece positions T-shaped blade root
Outlet side.
Further, the blade root radial direction jacking mechanism includes holding out against seat, described to hold out against on seat from front to back through installation
The front end for having Top fastening screw, the Top fastening screw is fixed with groove face briquetting.
Further, axial jacking mechanism is additionally provided with the positioning plate, the positioning plate is located at two radial directions to be determined
Center position between the seat of position offers center through hole, bottom surface and is provided with kerve with the center through hole UNICOM and positioned at institute
State kerve rearward position offer it is parallel with the center through hole and with the tapped through hole of the kerve UNICOM, the screw thread lead to
Hole internal thread is connected with clamping screw, elasticity is provided with the center through hole and holds out against component, and the elasticity holds out against component top
Hold out against with T-shaped blade root bottom surface, be provided with lever in the kerve, the front end of the lever is stretched into the center through hole and front
Component bottom holds out against, rear end top surface holds out against with the clamping screw to hold top to hold out against with the elasticity.
Further, the lever bottom surface is provided with arc surface, and the arc surface is contacted with the type face measuring tool plate top surface.
Further, the lever front end is provided with cambered surface projection upwards, and the cambered surface projection holds out against group with the elasticity
Part holds out against.
Further, the elasticity holds out against component including cushion block, withstanding tight block and spring, and the withstanding tight block top is provided with one heart
Supporting part, loaded on the supporting part, the cushion block is installed in the top of the supporting part to the spring housing, the cushion block with
The contact of T-shaped blade root bottom surface holds out against.
The beneficial effect of mechanism of the present invention is：It passes through the positioning seat of blade root positioning component, radial positioning seat can be to T
The interior sagittal plane of shape blade root, crossette upper surface are positioned and are held out against T-shaped blade root and positioning seat by radial direction jacking mechanism, therefore its
Positioning is reliable；In addition, its also by the axial jacking mechanism that is arranged in positioning plate by T-shaped blade root and blade root positioning component
Axially hold out against, be further ensured that the reliability between the crossette upper surface of T-shaped blade root and radial positioning seat holds out against.
Description of the drawings
Fig. 1 is certain type T-shaped blade root schematic diagram；
Fig. 2 is the schematic side view of Fig. 1；
Fig. 3 is the overlooking the structure diagram of the blade root detent mechanism of T Steam Turbine shape blade root blade profile detection of the present invention；
Fig. 4 is the A-A of Fig. 3 to partial enlargement cross-sectional schematic；
Fig. 5 is the schematic perspective view of radial direction positioning seat in mechanism of the present invention；
Fig. 6 is the amplification schematic perspective view of lever in mechanism of the present invention；
Fig. 7 is the mplifying structure schematic diagram of withstanding tight block in mechanism of the present invention；
Fig. 8 is the view of mechanism's clamping type T-shaped blade root of the present invention.
Reference：10- types face measuring tool base plate；20- positioning plates；30- blade root positioning components；31- positioning seats；32- footpaths
To positioning seat；321- top plate portions；321a- bottom surfaces；321b- top surfaces；322- supporting parts；33- sides locating piece；40- blade roots are radially
Jacking mechanism；41- holds out against seat；42- Top fastening screws；43- groove face briquettings；50- axial directions jacking mechanism；51- center through hole；52- bottoms
Groove；53- tapped through holes；54- clamping screws；55- elasticity holds out against component；551- cushion blocks；552- withstanding tight blocks；5521- supporting parts；
5522- screwed holes；553- springs；56- levers；561- cambered surface projections；562- arc surfaces；60-T shape blade roots；61- crossettes；In 62-
Sagittal plane；63- blade root profiles of tooth bottom surface；64-T shape blade roots bottom surface.
Specific embodiment
See Fig. 3 and Fig. 4, mechanism of the present invention includes type face measuring tool base plate 10, on type face measuring tool base plate 10 positioning bottom is fixed with
Plate 20, is fixed with blade root positioning component 30 on positioning plate 20, blade root positioning component 30 includes positioning seat 31 and radial positioning seat
32, the front side of positioning seat 31 is respectively arranged at two ends with symmetrical radial positioning seat 32, positioning seat 31 and two radial positioning seats
32 in the open concave structure in front side, and T-shaped blade root 60 is positioned in concave structure and two radial positioning seats 32 position T-shaped leaf
The crossette upper surface 61 of root, positioning seat 31 positions the interior sagittal plane 62 of T-shaped blade, on positioning plate 20, the front side of concave structure
Blade root radial direction jacking mechanism 40 is provided with, blade root radial direction jacking mechanism 40 holds out against the interior sagittal plane of T-shaped blade root and positioning seat 21.
Wherein, radial positioning seat 32 includes top plate portion 321 and supporting part 322, sees Fig. 5, top plate portion 321 and supporting part 322
Vertically connect integral in inverted L-shaped, crossette upper surface, the top surface 321b supportings of the bottom surface 321a positioning T-shaped blade roots of top plate portion 321
Blade root profile of tooth bottom surface；The both sides of positioning seat 31 are symmetrically fixed with side locating piece 33, the positioning T-shaped blade root outlet of side locating piece 33
Side.
The blade root radial direction jacking mechanism 40 includes holding out against seat 41, hold out against on seat 41 from front to back screw thread through being provided with top
Tight screw 42, the front end of Top fastening screw 42 is fixed with groove face briquetting 43.
Axial jacking mechanism 50 is additionally provided with positioning plate 20, positioning plate 20 is located between two radial positioning seats 32
Center position offers center through hole 51, bottom surface and is provided with the kerve 52 with the UNICOM of center through hole 51 and on rear side of kerve 52
Position offer it is parallel with center through hole 51 and with the tapped through hole 53 of the UNICOM of kerve 52, the internal thread of tapped through hole 53 is connected with
Elasticity is provided with clamping screw 54, center through hole 51 and holds out against component 55, elasticity holds out against component 55 including cushion block 551, withstanding tight block
552 and spring 553, the top of withstanding tight block 552 is provided with concentric supporting part 5521, sees Fig. 7, and spring 553 is set in supporting part 5521
On, cushion block 551 is affixed with the top of supporting part 5521 in screwed hole 5522 by bolt, and cushion block 551 connects with T-shaped blade root bottom surface
Touch and hold out against；Lever 56 is provided with kerve 52, Fig. 6 is seen, the front end of lever 56 is provided with cambered surface projection 561 upwards and arc bump
561 bottoms of withstanding tight block 552 stretched into center through hole 51 and hold out against component 55 with elasticity hold out against, the rear end top surface of lever 56 and pressure
Tight screw rod 54 holds out against；The bottom surface of lever 56 is provided with arc surface 562, and arc surface 562 is contacted with the top surface of type face measuring tool base plate 10.
During blade clamping, by T-shaped blade root from the front side insertion concave structure of two radial positioning seats 32, Fig. 8 is seen, and make
Obtain sagittal plane 62 in T-shaped blade root to be adjacent to positioning seat 31, in top board undersurface 321a of radial positioning seat 32 and the crossette of T-shaped blade root
Surface contacts, and blade root outlet side is adjacent to side locating piece 33, and T-shaped blade root bottom surface is positioned on cushion block 551, tightens compression spiral shell
Bar 54, the rear end of lever 56 pushes under the suppressing action of clamping screw 54, front end is upturned so as to the cambered surface projection 561 of front end
Withstanding tight block 552 is pushed up, cushion block 551 is held out against so as to promote T-shaped blade root with T-shaped blade root bottom surface in the presence of spring 553
The upper surface of crossette 61 holds out against with the bottom surface of the top board of radial positioning seat 32, tightens Top fastening screw 42 so that Top fastening screw 42 rear end
Groove face briquetting 43 holds out against the sagittal plane of T-shaped blade root, and with clearance gauge sagittal plane and positioning seat 32, blade root outlet side in T-shaped blade root are checked
Whether it is adjacent between side locating piece 33.
Claims (8)
1. the blade root detent mechanism that T Steam Turbine shape blade root blade profile is detected, it includes type face measuring tool base plate（10）, its feature exists
In：The type face measuring tool base plate（10）On be fixed with positioning plate（20）, the positioning plate（20）On be fixed with blade root positioning
Component（30）, the blade root positioning component（30）Including positioning seat（31）With radial positioning seat（32）, the positioning seat（31）'s
Front side is respectively arranged at two ends with the symmetrical radial positioning seat（32）, the positioning seat（31）And two radial positioning seats
（32）In the concave structure that front side is open, T-shaped blade root（60）It is positioned in the concave structure and two radial positionings
Seat（32）The crossette of positioning T-shaped blade root（61）Upper surface, the positioning seat（31）The interior sagittal plane of positioning T-shaped blade（62）,
The positioning plate（20）Blade root radial direction jacking mechanism is provided with front side of the upper, concave structure（40）, the blade root radial direction top
Tight mechanism（40）By the interior sagittal plane of T-shaped blade root（62）With the positioning seat（31）Compress.
2. the blade root detent mechanism that T Steam Turbine shape blade root blade profile according to claim 1 is detected, it is characterised in that：
The radial positioning seat（32）Including top plate portion（321）And supporting part（322）, the top plate portion（321）With supporting part（322）It is in
Inverted L-shaped vertically connects integral, the top plate portion（321）Bottom surface（321a）The crossette of positioning T-shaped blade root（61）Upper surface, top
Face（321b）Supporting blade root profile of tooth bottom surface（63）.
3. the blade root detent mechanism that T Steam Turbine shape blade root blade profile according to claim 2 is detected, it is characterised in that：
The positioning seat（31）Both sides are symmetrically fixed with side locating piece（33）, the side locating piece（33）Positioning T-shaped blade root outlet
Side.
4. according to the blade root detent mechanism of arbitrary described T Steam Turbine shape blade root blade profile detection in claims 1 to 3, its
It is characterised by：The blade root radial direction jacking mechanism（40）Including holding out against seat（41）, it is described to hold out against seat（41）On run through from front to back
Top fastening screw is installed（42）, the Top fastening screw（42）Front end be fixed with groove face briquetting（43）.
5. the blade root detent mechanism that T Steam Turbine shape blade root blade profile according to claim 4 is detected, it is characterised in that：
The positioning plate（20）Inside it is additionally provided with axial jacking mechanism（50）, the positioning plate（20）Positioned at two radial positioning seats
（32）Between center position offer center through hole（51）, bottom surface is provided with and the center through hole（51）The kerve of UNICOM
（52）And positioned at the kerve（52）Rearward position is offered and the center through hole（51）It is parallel and with the kerve（52）
The tapped through hole of UNICOM（53）, the tapped through hole（53）Internal thread is connected with clamping screw（54）, the center through hole（51）
Inside it is provided with elasticity and holds out against component（55）, the elasticity holds out against component（55）Top and T-shaped blade root bottom surface（64）Hold out against, the bottom
Groove（52）Inside it is provided with lever（56）, the lever（56）Front end stretch into the center through hole（51）Interior and front top with
The elasticity holds out against component（55）Bottom holds out against, rear end top surface and the clamping screw（54）Hold out against.
6. the blade root detent mechanism that T Steam Turbine shape blade root blade profile according to claim 5 is detected, it is characterised in that：
The lever（56）Bottom surface is provided with arc surface（561）, the arc surface（561）With the type face measuring tool base plate（10）Top surface connects
Touch.
7. the blade root detent mechanism that T Steam Turbine shape blade root blade profile according to claim 5 is detected, it is characterised in that：
The lever（56）Front end is provided with cambered surface projection upwards（562）, the cambered surface projection（562）Component is held out against with the elasticity
（55）Hold out against.
8. according to the blade root detent mechanism of arbitrary described T Steam Turbine shape blade root blade profile detection in claim 5～7, its
It is characterised by：The elasticity holds out against component（55）Including cushion block（551）, withstanding tight block（552）And spring（553）, the withstanding tight block
（552）Top is provided with concentric supporting part（5521）, the spring（553）It is set in the supporting part（5521）On, the pad
Block（551）It is installed in the supporting part（5521）Top, the cushion block（551）With T-shaped blade root bottom surface（64）Contact holds out against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234937.0A CN106625337B (en) | 2016-12-28 | 2016-12-28 | The blade root detent mechanism of T Steam Turbine shape blade root blade profile detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611234937.0A CN106625337B (en) | 2016-12-28 | 2016-12-28 | The blade root detent mechanism of T Steam Turbine shape blade root blade profile detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106625337A true CN106625337A (en) | 2017-05-10 |
| CN106625337B CN106625337B (en) | 2018-07-06 |
Family
ID=58832119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611234937.0A Active CN106625337B (en) | 2016-12-28 | 2016-12-28 | The blade root detent mechanism of T Steam Turbine shape blade root blade profile detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106625337B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843174A (en) * | 2017-12-04 | 2018-03-27 | 无锡透平叶片有限公司 | The measuring tool of angle incline position is split for measuring the bacterial type blade root back of the body |
| CN108127431A (en) * | 2017-10-31 | 2018-06-08 | 武汉船用机械有限责任公司 | A kind of blade positioning tool |
| CN113524065A (en) * | 2020-09-29 | 2021-10-22 | 无锡透平叶片有限公司 | Frame type measuring tool for measuring T-shaped blade root blade of reaction steam turbine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090116965A1 (en) * | 2005-09-07 | 2009-05-07 | Dieter Brillert | Arrangement for axially securing rotating blades in a rotor, sealing element for such an arangement, and use of such an arrangement |
| CN101718515A (en) * | 2009-11-20 | 2010-06-02 | 无锡透平叶片有限公司 | Improved common measuring tool for measuring angular plane in externally radial direction of blade cuboid |
| CN201744716U (en) * | 2010-08-12 | 2011-02-16 | 四川省自贡市海川实业有限公司 | Clamp dedicated for fine milling of radial inclined planes of blade basin |
| CN203092194U (en) * | 2012-12-28 | 2013-07-31 | 东方电气集团东方汽轮机有限公司 | Positioning fixture for processing fungus-shaped blade roots |
| CN203197635U (en) * | 2013-04-17 | 2013-09-18 | 无锡东雄金鹰科技有限公司 | Blade clamp |
| CN204301636U (en) * | 2014-12-17 | 2015-04-29 | 四川绵竹鑫坤机械制造有限责任公司 | A kind of blade comprehensive check tool |
| CN105414572A (en) * | 2015-12-27 | 2016-03-23 | 无锡透平叶片有限公司 | Adjustable blade top centre device for long turbine blade |
| CN205271506U (en) * | 2016-01-20 | 2016-06-01 | 哈尔滨汽轮机厂有限责任公司 | A special fixture for fixed blade |
| CN105965289A (en) * | 2016-06-15 | 2016-09-28 | 广东工业大学 | Flexible clamp used for aviation blade |
| CN206357116U (en) * | 2016-12-28 | 2017-07-28 | 无锡透平叶片有限公司 | A kind of blade root detent mechanism of T Steam Turbine shape blade root blade profile detection |
-
2016
- 2016-12-28 CN CN201611234937.0A patent/CN106625337B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090116965A1 (en) * | 2005-09-07 | 2009-05-07 | Dieter Brillert | Arrangement for axially securing rotating blades in a rotor, sealing element for such an arangement, and use of such an arrangement |
| CN101718515A (en) * | 2009-11-20 | 2010-06-02 | 无锡透平叶片有限公司 | Improved common measuring tool for measuring angular plane in externally radial direction of blade cuboid |
| CN201744716U (en) * | 2010-08-12 | 2011-02-16 | 四川省自贡市海川实业有限公司 | Clamp dedicated for fine milling of radial inclined planes of blade basin |
| CN203092194U (en) * | 2012-12-28 | 2013-07-31 | 东方电气集团东方汽轮机有限公司 | Positioning fixture for processing fungus-shaped blade roots |
| CN203197635U (en) * | 2013-04-17 | 2013-09-18 | 无锡东雄金鹰科技有限公司 | Blade clamp |
| CN204301636U (en) * | 2014-12-17 | 2015-04-29 | 四川绵竹鑫坤机械制造有限责任公司 | A kind of blade comprehensive check tool |
| CN105414572A (en) * | 2015-12-27 | 2016-03-23 | 无锡透平叶片有限公司 | Adjustable blade top centre device for long turbine blade |
| CN205271506U (en) * | 2016-01-20 | 2016-06-01 | 哈尔滨汽轮机厂有限责任公司 | A special fixture for fixed blade |
| CN105965289A (en) * | 2016-06-15 | 2016-09-28 | 广东工业大学 | Flexible clamp used for aviation blade |
| CN206357116U (en) * | 2016-12-28 | 2017-07-28 | 无锡透平叶片有限公司 | A kind of blade root detent mechanism of T Steam Turbine shape blade root blade profile detection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127431A (en) * | 2017-10-31 | 2018-06-08 | 武汉船用机械有限责任公司 | A kind of blade positioning tool |
| CN107843174A (en) * | 2017-12-04 | 2018-03-27 | 无锡透平叶片有限公司 | The measuring tool of angle incline position is split for measuring the bacterial type blade root back of the body |
| CN113524065A (en) * | 2020-09-29 | 2021-10-22 | 无锡透平叶片有限公司 | Frame type measuring tool for measuring T-shaped blade root blade of reaction steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106625337B (en) | 2018-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106625337A (en) | Root positioning mechanism for T root blade profile detection of steam turbine | |
| CN206357116U (en) | A kind of blade root detent mechanism of T Steam Turbine shape blade root blade profile detection | |
| CN104924008B (en) | Expansion type hole center positioning mechanism | |
| CN106643596B (en) | Adapter device for turbine disc mortise measurement and measurement system | |
| CN106767243A (en) | A kind of device for detecting the multigroup listrium wedge surface of turborotor | |
| CN203901135U (en) | Small-sized workpiece fast clamping device | |
| CN207841060U (en) | A kind of fixture of processing turborotor | |
| CN103350406A (en) | Tooth aligning shrinkage fitting clamp for duplicate gear | |
| CN107234453A (en) | The positioning and clamping mechanism of brake Excircle machining | |
| CN106141281A (en) | A kind of pipe fitting with cam cuts location clamping frock | |
| CN103675364B (en) | A kind of test position fix fixture for rotating disc type integrated circuit test sorting machine | |
| CN104101283B (en) | Clamp used for turnover support detection and use method of clamp | |
| CN202648567U (en) | Locating pin | |
| CN210427217U (en) | Measure mechanism of 13F pin spot welding pull-out force | |
| CN209166317U (en) | A kind of cylinder head compensating groove depth measurement tools | |
| CN208696862U (en) | A kind of eccentric shaft positioning fixture | |
| CN105333791A (en) | Device for measuring outer diameter of sealing teeth of machining component for high-pressure turbine disc shaft of engine | |
| CN103921148A (en) | Blade clamp | |
| CN102489923A (en) | Engine gear-shift shaft welding tool | |
| CN202947587U (en) | Location degree measuring tool | |
| CN210486713U (en) | Valve plate inspection bench | |
| CN210499363U (en) | Multi-station universal fixture for high-pressure pump shell | |
| CN204228045U (en) | A kind of cylinder cap comprehensive check tool | |
| CN214224358U (en) | Test needle crimping contact type quadrant photoelectric detector test tool | |
| CN209533158U (en) | Top magnet extraction test fixture |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |