CN102284734A - Method for processing key grooves of shaft - Google Patents
Method for processing key grooves of shaft Download PDFInfo
- Publication number
- CN102284734A CN102284734A CN 201110184109 CN201110184109A CN102284734A CN 102284734 A CN102284734 A CN 102284734A CN 201110184109 CN201110184109 CN 201110184109 CN 201110184109 A CN201110184109 A CN 201110184109A CN 102284734 A CN102284734 A CN 102284734A
- Authority
- CN
- China
- Prior art keywords
- centering
- keyway
- workpiece spindle
- processed
- terminal pad
- 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
- Milling Processes (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a method for processing key grooves of a shaft, which comprises the following steps that: two V-shaped iron blocks are fixed on a worktable of the common milling machine; a workpiece shaft to be processed is put into V-shaped grooves of the two V-shaped iron blocks; a connecting disc is arranged on one end face of the workpiece shaft to be processed, and an alignment block is fixed with the connecting disc, so that two alignment surfaces of the alignment block are vertical or parallel to the radius direction of the key grooves to be processed; the workpiece shaft and the alignment block are aligned, and the workpiece shaft and the two V-shaped iron blocks are pressed on the worktable by pressing plate bolts and pressing plates; and the key grooves on the same bus are processed by an end milling cutter in rough and fine modes, a workpiece is rotated 90 or 180 degrees, and the processes are repeated so as to process the key grooves on a plurality of buses of the workpiece shaft. By the method, the form and position tolerance of a product is ensured, a few parts are used, the structure is simple, and the workpiece is conveniently, quickly, safely and reliably clamped.
Description
Technical field
The invention belongs to machining, manufacturing technology field, relate to the processing method of a kind of class keyway.
Background technology
Axle is a machine driving and be connected one of the most general part, the a plurality of keyways that are distributed on different circumference, the same bus are often arranged on the axle, most product is the most common with 90 °, 180 ° distributions, the general method of artificial line that adopts is processed keyway on machine tool, the very difficult position accuracy demand that guarantees between each keyway.
Summary of the invention
The processing method that the purpose of this invention is to provide a kind of class keyway has solved prior art and adopted artificial line processing keyway on machine tool, is difficult to guarantee the problem of positional precision between each keyway.
The technical solution adopted in the present invention is, the processing method of a kind of class keyway, and this method is specifically implemented according to following steps:
Step 2, workpiece spindle to be processed is placed in the V-type groove of two V shape irons;
Step 3, on an end face of workpiece spindle to be processed, terminal pad is installed, connect two bolt two sockets that set in advance on aperture and the terminal pad with two of the centering piece again and fix, make that two centering faces of centering piece are vertical or parallel with the radial direction of the keyway of bus to be processed;
Step 4, according to the requirement on machining accuracy of workpiece spindle, directly over the centering workpiece spindle bus beat≤0.01, the centering face total length of centering piece beats≤0.005; After finishing, centering, workpiece spindle and two V shape irons are pressed on the workbench by follower bolt and pressing plate;
Step 5, employing slotting cutter divide thick, smart dual mode, process the keyway on the same bus, reach the drawing requirement up to each keyway, have so far finished the keyway processing on article one bus;
Step 6, again workpiece is rotated 90 ° or 180 °, in kind second of the centering workpiece spindle bus and centering piece are processed a plurality of keyways on another bus, by that analogy, realize the processing of keyway on a plurality of buses of workpiece spindle.
The processing method of axle class keyway of the present invention, its characteristics also are: have four bolt one installing holes on the described terminal pad, these four screw one installing holes evenly are arranged on the same circumference, and terminal pad is fixed by four bolts, the one corresponding socket that these four screw one installing holes and workpiece spindle end face set in advance; Terminal pad is provided with two bolts two towards the card upper edge of centering piece diameter symmetry, and symmetry has two bolt two installing holes on the longitudinal centre line of centering piece, two bolts, the two corresponding suits on these two bolt two installing holes and the terminal pad.
The invention has the beneficial effects as follows, both guaranteed the product form and position tolerance, guarantee product quality again, save cost, and the part that uses is few, simple in structure, clamping workpiece is convenient, fast, and is safe and reliable.
Description of drawings
Fig. 1 is the centering piece in the inventive method and the syndeton schematic diagram of terminal pad;
Fig. 2 is the working state schematic representation of keyway on processing article one bus of the inventive method;
Fig. 3 is the working state schematic representation of the keyway on 90 ° of buses in processing interval on Fig. 1 basis;
Fig. 4 is the working state schematic representation of the keyway on 180 ° of buses in processing interval on Fig. 1 basis.
Among the figure, 1. workbench, 2.V sections one, 3.V sections two, 4. pressing plate, 5. follower bolt, 6. terminal pad, 7. centering piece, 8. workpiece spindle, 9. centering face, 10. bolt one, 11. bolts two.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, be terminal pad 6 and centering piece 7 structural representations that use in the processing method of axle class keyway of the present invention, have four bolt one installing holes on the terminal pad 6, these four screw one installing holes evenly are arranged on the same circumference, four bolts, the one 10 corresponding suits that are provided with on these four screw one installing holes and workpiece spindle 8 axle heads guarantee the concentric of terminal pad 6 and workpiece spindle 8; Terminal pad 6 is provided with two bolts 2 11 towards the card upper edge of centering piece 7 diameter symmetry, symmetry has two bolt two installing holes on the longitudinal centre line of centering piece 7, two bolts, 2 11 corresponding suits on these two bolt two installing holes and the terminal pad 6 guarantee the concentric of centering piece 7 and terminal pad 6.
The processing method of axle class keyway of the present invention is utilized aforesaid terminal pad 6 and centering piece 7, specifically implements according to following steps:
Step 2, workpiece spindle to be processed 8 is placed in the V-type groove of two V shape irons (v block 1 and v block 2 3);
Step 3, terminal pad 6 is installed on an end face of workpiece spindle to be processed 8, terminal pad 6 is fixed by four bolt one 10 sockets that four connecting holes and workpiece spindle 8 end faces set in advance, and these four bolts 1 evenly are arranged on the concentric circles of workpiece spindle 8,
Connecting two bolt 2 11 sockets that set in advance on aperture and the terminal pad 6 with two of centering piece 7 again fixes, the line of two bolts 2 11 that are provided with on the terminal pad 6 intersects with the axial line of workpiece spindle 8 and is vertical, makes that two centering faces 9 of centering piece 7 are vertical or parallel with the radial direction of keyway to be processed (article one bus);
Step 4, according to the requirement on machining accuracy of workpiece spindle 8, directly over the centering workpiece spindle 8 (article one) bus beat≤0.01, centering face 9 total lengths of centering piece beat≤0.005; After finishing, centering, workpiece spindle 8 and two V shape irons are pressed on the workbench by follower bolt 5 and pressing plate 4;
Step 5, employing slotting cutter divide thick, smart dual mode, process the keyway on the same bus, reach the drawing requirement up to each keyway, as Fig. 2, have so far finished the keyway processing on article one bus;
Step 6, again workpiece is rotated 90 ° or 180 °, in kind (second) bus and the centering piece 7 of centering workpiece spindle 8 are processed a plurality of keyways on another bus, with reference to Fig. 3, Fig. 4, by that analogy, realize the processing of keyway on more than 8 bus of workpiece spindle.
The two sides datum level 9 of centering piece 7 needs accurate grinding to guarantee the centering required precision; Terminal pad 6 is used for changing the relative position of centering piece 7 and axial keyway, adopts existing Bolt Connection on workpiece spindle 8 axle heads, and the relative position that guarantees workpiece to be processed axle 8 and centering piece 7 is accurately with definite.
The processing method of axle of the present invention class keyway is used for a plurality of keyways of 90 °, 180 ° distributions on working shaft-like part circumference on the plain-milling machine, by simple, practical benchmark crossover tool, has solved a plurality of keyway perpendicularity of different azimuth, depth of parallelism problem.
The processing method of axle class keyway of the present invention has guaranteed the product form and position tolerance, has improved working (machining) efficiency, both guaranteed product quality, and saved cost again, the part of use is few, in light weight, simple in structure, clamping workpiece is convenient, fast, safe and reliable, manufacture process meets the HSE requirement.
Claims (2)
1. the processing method of an axle class keyway, its characteristics are: this method is specifically implemented according to following steps:
Step 1, on the workbench of plain-milling machine, fixedly install two V shape irons, the V-arrangement face manufacturing of these two V shape irons adopts pairing to wear into simultaneously with the mode of mill, the axial distance that these two V shape irons are placed is gone up with the position of cylindrical according to workpiece spindle to be processed (8) and is determined axial runout≤0.01 of two V shape irons of centering;
Step 2, workpiece spindle to be processed (8) is placed in the V-type groove of two V shape irons;
Step 3, terminal pad (6) is installed on an end face of workpiece spindle to be processed (8), connect two bolts, two (11) sockets that set in advance on aperture and the terminal pad (6) with two of centering piece (7) again and fix, make that two centering faces (9) of centering piece (7) are vertical or parallel with the radial direction of the keyway of bus to be processed;
Step 4, according to the requirement on machining accuracy of workpiece spindle (8), directly over the centering workpiece spindle (8) bus beat≤0.01, centering face (9) total length of centering piece beats≤0.005; After finishing, centering, workpiece spindle (8) and two V shape irons are pressed on the workbench by follower bolt (5) and pressing plate (4);
Step 5, employing slotting cutter divide thick, smart dual mode, process the keyway on the same bus, reach the drawing requirement up to each keyway, have so far finished the keyway processing on article one bus;
Step 6, again workpiece is rotated 90 ° or 180 °, in kind second bus of centering workpiece spindle (8) and centering piece (7) are processed a plurality of keyways on another bus, by that analogy, realize the processing of keyway on a plurality of buses of workpiece spindle (8).
2. the processing method of axle class keyway according to claim 1, its characteristics are: have four bolt one installing holes on the described terminal pad (6), these four screw one installing holes evenly are arranged on the same circumference, and terminal pad (6) is fixed by four bolts, one (10) the corresponding socket that these four screw one installing holes and workpiece spindle (8) end face set in advance; Terminal pad (6) is provided with two bolts two (11) towards the card upper edge of centering piece (7) diameter symmetry, symmetry has two bolt two installing holes on the longitudinal centre line of centering piece (7), two bolts, two (11) the corresponding suits on these two bolt two installing holes and the terminal pad (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110184109 CN102284734B (en) | 2011-07-04 | 2011-07-04 | Method for processing key grooves of shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110184109 CN102284734B (en) | 2011-07-04 | 2011-07-04 | Method for processing key grooves of shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102284734A true CN102284734A (en) | 2011-12-21 |
| CN102284734B CN102284734B (en) | 2013-02-06 |
Family
ID=45331634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110184109 Expired - Fee Related CN102284734B (en) | 2011-07-04 | 2011-07-04 | Method for processing key grooves of shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102284734B (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785102A (en) * | 2012-08-09 | 2012-11-21 | 山东华力电机集团股份有限公司 | Milling-machine adjustable-angle supporting device for milling oblique key slot |
| CN102922021A (en) * | 2012-10-16 | 2013-02-13 | 大连德迈仕精密轴有限公司 | Machining method of cylindrical surface long keyway of throttle valve spindle |
| CN103341729A (en) * | 2013-06-28 | 2013-10-09 | 南车戚墅堰机车有限公司 | Rotating shaft key groove machining method |
| CN103658789A (en) * | 2013-11-18 | 2014-03-26 | 武汉船用机械有限责任公司 | Key slot machining device for long shaft type parts |
| CN103737088A (en) * | 2013-12-13 | 2014-04-23 | 陕西宝成航空仪表有限责任公司 | Precision processing method for symmetric key grooves on shaft |
| CN103949712A (en) * | 2014-04-25 | 2014-07-30 | 宝鸡石油机械有限责任公司 | Processing method for ensuring form and position tolerance during slotting of key grooves in holes |
| CN104400480A (en) * | 2014-11-14 | 2015-03-11 | 江苏大中电机股份有限公司 | Skewed key slot milling clamp for rotating shaft of roller bed variable-frequency and variable-speed motor |
| CN104439456A (en) * | 2014-11-06 | 2015-03-25 | 上海电气集团上海电机厂有限公司 | Method for processing two 180-degree distributed key grooves in shaft-extension end of large motor |
| CN104625188A (en) * | 2014-12-17 | 2015-05-20 | 中国航空工业集团公司北京航空精密机械研究所 | Method for processing high-symmetry-degree double-key groove of slender shaft component |
| CN104801750A (en) * | 2015-04-29 | 2015-07-29 | 重庆齿轮箱有限责任公司 | Processing method for key groove of gear shaft |
| CN105149695A (en) * | 2015-10-28 | 2015-12-16 | 宁波亚路轴业有限公司 | Automatic chamfering machine tool for shaft part |
| CN105382498A (en) * | 2015-12-23 | 2016-03-09 | 常熟市淼泉压缩机配件有限公司 | Processing method for thin-wall inner-cavity slender shaft component |
| CN109093170A (en) * | 2018-09-26 | 2018-12-28 | 舟山市7412工厂 | The eccentric groove processing method of disposal molding eccentric bolt |
| CN109732355A (en) * | 2018-12-24 | 2019-05-10 | 蓝海五金(深圳)有限公司 | A kind of automatic processing machine tool of printer axle core |
| CN110666516A (en) * | 2019-09-04 | 2020-01-10 | 武汉东振机电设备有限公司 | Automatic processing device for milling notch of rod piece |
| CN110682117A (en) * | 2019-08-19 | 2020-01-14 | 武汉船用机械有限责任公司 | Shaft machining tool and shaft machining method |
| CN112222498A (en) * | 2020-10-20 | 2021-01-15 | 连云港兄弟金属制品有限公司 | Shaft keyway machining device and machining method thereof |
| CN112676881A (en) * | 2020-12-17 | 2021-04-20 | 郑州明泰交通新材料有限公司 | Machining and inspection tool for subway floor inserting strips |
| CN113814757A (en) * | 2021-10-12 | 2021-12-21 | 北京无线电测量研究所 | Polarizer machining device and machining method |
| CN114888341A (en) * | 2022-05-24 | 2022-08-12 | 广东韶钢工程技术有限公司 | Device for machining shaft parts by milling machine and using method thereof |
| CN116000384A (en) * | 2023-02-22 | 2023-04-25 | 扬力集团股份有限公司 | Key groove machining alignment device and method for double-key groove gear shaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4778316A (en) * | 1987-04-01 | 1988-10-18 | Climax Portable Machine Tools, Inc. | Portable Keymill |
| CN101116941A (en) * | 2006-08-02 | 2008-02-06 | 孙爱平 | Machining clamp |
| CN201300341Y (en) * | 2008-11-20 | 2009-09-02 | 南阳二机石油装备(集团)有限公司 | 180-degrees symmetrical key groove milling frock of shaft part |
| CN201493679U (en) * | 2009-07-30 | 2010-06-02 | 中冶陕压重工设备有限公司 | Processing device for high-precision phase position key slot |
| CN101992404A (en) * | 2009-08-11 | 2011-03-30 | 上海东方泵业(集团)有限公司 | Alignment device for keyway processing and using method thereof |
-
2011
- 2011-07-04 CN CN 201110184109 patent/CN102284734B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4778316A (en) * | 1987-04-01 | 1988-10-18 | Climax Portable Machine Tools, Inc. | Portable Keymill |
| CN101116941A (en) * | 2006-08-02 | 2008-02-06 | 孙爱平 | Machining clamp |
| CN201300341Y (en) * | 2008-11-20 | 2009-09-02 | 南阳二机石油装备(集团)有限公司 | 180-degrees symmetrical key groove milling frock of shaft part |
| CN201493679U (en) * | 2009-07-30 | 2010-06-02 | 中冶陕压重工设备有限公司 | Processing device for high-precision phase position key slot |
| CN101992404A (en) * | 2009-08-11 | 2011-03-30 | 上海东方泵业(集团)有限公司 | Alignment device for keyway processing and using method thereof |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785102B (en) * | 2012-08-09 | 2015-01-28 | 山东华力电机集团股份有限公司 | Milling-machine adjustable-angle supporting device for milling oblique key slot |
| CN102785102A (en) * | 2012-08-09 | 2012-11-21 | 山东华力电机集团股份有限公司 | Milling-machine adjustable-angle supporting device for milling oblique key slot |
| CN102922021A (en) * | 2012-10-16 | 2013-02-13 | 大连德迈仕精密轴有限公司 | Machining method of cylindrical surface long keyway of throttle valve spindle |
| CN103341729A (en) * | 2013-06-28 | 2013-10-09 | 南车戚墅堰机车有限公司 | Rotating shaft key groove machining method |
| CN103658789A (en) * | 2013-11-18 | 2014-03-26 | 武汉船用机械有限责任公司 | Key slot machining device for long shaft type parts |
| CN103658789B (en) * | 2013-11-18 | 2016-04-13 | 武汉船用机械有限责任公司 | A kind of keyway attachment for longaxones parts |
| CN103737088A (en) * | 2013-12-13 | 2014-04-23 | 陕西宝成航空仪表有限责任公司 | Precision processing method for symmetric key grooves on shaft |
| CN103737088B (en) * | 2013-12-13 | 2017-02-15 | 陕西宝成航空仪表有限责任公司 | Precision processing method for symmetric key grooves on shaft |
| CN103949712B (en) * | 2014-04-25 | 2016-04-13 | 宝鸡石油机械有限责任公司 | The processing method of form and position tolerance is ensured in female keyway slotting process |
| CN103949712A (en) * | 2014-04-25 | 2014-07-30 | 宝鸡石油机械有限责任公司 | Processing method for ensuring form and position tolerance during slotting of key grooves in holes |
| CN104439456A (en) * | 2014-11-06 | 2015-03-25 | 上海电气集团上海电机厂有限公司 | Method for processing two 180-degree distributed key grooves in shaft-extension end of large motor |
| CN104400480A (en) * | 2014-11-14 | 2015-03-11 | 江苏大中电机股份有限公司 | Skewed key slot milling clamp for rotating shaft of roller bed variable-frequency and variable-speed motor |
| CN104625188A (en) * | 2014-12-17 | 2015-05-20 | 中国航空工业集团公司北京航空精密机械研究所 | Method for processing high-symmetry-degree double-key groove of slender shaft component |
| CN104801750A (en) * | 2015-04-29 | 2015-07-29 | 重庆齿轮箱有限责任公司 | Processing method for key groove of gear shaft |
| CN104801750B (en) * | 2015-04-29 | 2017-05-31 | 重庆齿轮箱有限责任公司 | A kind of processing method of gear shaft key groove |
| CN105149695A (en) * | 2015-10-28 | 2015-12-16 | 宁波亚路轴业有限公司 | Automatic chamfering machine tool for shaft part |
| CN105382498A (en) * | 2015-12-23 | 2016-03-09 | 常熟市淼泉压缩机配件有限公司 | Processing method for thin-wall inner-cavity slender shaft component |
| CN109093170B (en) * | 2018-09-26 | 2020-05-08 | 舟山市7412工厂 | Method for machining eccentric groove of one-step formed eccentric bolt |
| CN109093170A (en) * | 2018-09-26 | 2018-12-28 | 舟山市7412工厂 | The eccentric groove processing method of disposal molding eccentric bolt |
| CN109732355B (en) * | 2018-12-24 | 2021-04-20 | 蓝海五金(深圳)有限公司 | Automatic processing machine tool of printer axle core |
| CN109732355A (en) * | 2018-12-24 | 2019-05-10 | 蓝海五金(深圳)有限公司 | A kind of automatic processing machine tool of printer axle core |
| CN110682117A (en) * | 2019-08-19 | 2020-01-14 | 武汉船用机械有限责任公司 | Shaft machining tool and shaft machining method |
| CN110666516A (en) * | 2019-09-04 | 2020-01-10 | 武汉东振机电设备有限公司 | Automatic processing device for milling notch of rod piece |
| CN110666516B (en) * | 2019-09-04 | 2021-02-19 | 武汉东振机电设备有限公司 | Automatic processing device for milling notch of rod piece |
| CN112222498A (en) * | 2020-10-20 | 2021-01-15 | 连云港兄弟金属制品有限公司 | Shaft keyway machining device and machining method thereof |
| CN112676881A (en) * | 2020-12-17 | 2021-04-20 | 郑州明泰交通新材料有限公司 | Machining and inspection tool for subway floor inserting strips |
| CN113814757A (en) * | 2021-10-12 | 2021-12-21 | 北京无线电测量研究所 | Polarizer machining device and machining method |
| CN113814757B (en) * | 2021-10-12 | 2024-03-26 | 北京无线电测量研究所 | Processing method |
| CN114888341A (en) * | 2022-05-24 | 2022-08-12 | 广东韶钢工程技术有限公司 | Device for machining shaft parts by milling machine and using method thereof |
| CN116000384A (en) * | 2023-02-22 | 2023-04-25 | 扬力集团股份有限公司 | Key groove machining alignment device and method for double-key groove gear shaft |
| CN116000384B (en) * | 2023-02-22 | 2024-02-27 | 扬力集团股份有限公司 | Key groove machining alignment device and method for double-key groove gear shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102284734B (en) | 2013-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102284734B (en) | Method for processing key grooves of shaft | |
| CN102513803B (en) | Technical method for constructing reference surface of assembled folio cartridge receiver and special clamp | |
| CN102501105B (en) | Clamp for oil pump processing and oil pump processing method | |
| CN102328216A (en) | Fixture for excircle finish turning and fixture processing method | |
| CN102189425A (en) | Universal joint pin machining fixture | |
| CN104440328A (en) | Lathe and lathe lamp for machining cambered surface plate | |
| CN201988967U (en) | Universal joint pin processing clamp | |
| CN203665173U (en) | Inclined disc transmission shaft machining clamp | |
| CN202388282U (en) | Machine tool fixture for secondary clamping of large workpieces | |
| CN202964032U (en) | Auxiliary device for roughly milling camshaft top of diesel engine | |
| CN204487210U (en) | Improve the frock of the quick high duplication positioning precision of integral wheel | |
| CN203579259U (en) | Shaft milling clamp | |
| CN104400475B (en) | A kind of positioning and clamping instrument and method | |
| CN212311743U (en) | Accurate quick flexible many heart eccentric shaft grinding fixture | |
| CN202985123U (en) | Clamping positioning device for shaft and machine tool with the same | |
| CN103056599A (en) | Preparation method for precise multiple continuous casting blade wax mould blade body forming loose pieces | |
| CN202804754U (en) | Hydraulic internal expansion clamping device for lathe machining | |
| CN110900450A (en) | Accurate quick flexible many heart eccentric shaft grinding fixture | |
| CN201913302U (en) | Device for processing splined shaft of crane | |
| CN102328122B (en) | Processing device and processing method for tangential key groove of motor shaft | |
| CN201799879U (en) | Key groove centering clamp | |
| CN208374764U (en) | Horizontal Machining centers deep hole processing tool | |
| CN207104641U (en) | Latch hook is ground notch fixture | |
| CN102152149B (en) | High rigidity and flexibility locating clamp and locating method of locating clamp | |
| CN202399065U (en) | Fixture for drilling automobile semi-axle flange |
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 |
Granted publication date: 20130206 Termination date: 20170704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |