CN201470969U - Face and side milling cutter of blade root outer groove and chamfer of steam turbine blade - Google Patents
Face and side milling cutter of blade root outer groove and chamfer of steam turbine blade Download PDFInfo
- Publication number
- CN201470969U CN201470969U CN2009201580916U CN200920158091U CN201470969U CN 201470969 U CN201470969 U CN 201470969U CN 2009201580916 U CN2009201580916 U CN 2009201580916U CN 200920158091 U CN200920158091 U CN 200920158091U CN 201470969 U CN201470969 U CN 201470969U
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- Prior art keywords
- tooth group
- milling
- blade
- blade root
- secondary tooth
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Abstract
The utility model relates to a face and side milling cutter which is used for milling a blade root outer groove and a chamfer of a steam turbine blade, has high processing efficiency and can improve the precision. The face and side milling cutter consists of a cutter head and straight-teeth blades, wherein the straight-teeth blades are uniformly distributed on the peripheral surface of the cutter head and comprise a margin milling tooth group, a first auxiliary tooth group, a second auxiliary tooth group, a third auxiliary tooth group and a principle tooth group which are clockwise arranged. In the utility model, the clockwise arrangement combination of the margin milling tooth group, the first auxiliary tooth group, the second auxiliary tooth group and the third auxiliary tooth group which have gradually increased chamfer height and tooth width are adopted, so that the accuracy of the blade root chamfer is improved when in milling; and the principle tooth group effectively guarantees the size tolerance of the root groove width; and the milling cutter adopting the structure completes the milling of the blade root outer groove and the chamfer of the blade simultaneously, thus improving the production efficiency.
Description
Technical field
The utility model relates to a kind of milling cutter, the particularly a kind of blade root water jacket of milling turbine blade and face and side cutter of chamfering of being used for.
Background technology
In the blade root process of processing vapor turbine five forks four groove step groove blades, need carry out the milling that water jacket adds chamfering to blade root, common first external groove carries out milling, carries out at last the processing of water jacket chamfering again, and it exists substep to finish low precision, shortcoming that working (machining) efficiency is low.
The utility model content
It is high and can improve the face and side cutter of precision that the technical problems to be solved in the utility model provides a kind of blade root water jacket of milling turbine blade and chamfer machining efficient.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of blade root water jacket of turbine blade and chamfering face and side cutter, constitute by cutterhead and straight-tooth blade, described straight-tooth blade is evenly distributed on the periphery of cutterhead, and its innovative point is: described straight-tooth blade is made up of by arranged clockwise surplus milling tooth group, the first secondary tooth group, the second secondary tooth group, the 3rd secondary tooth group and main tooth group.
Further, described surplus milling tooth group, the first secondary tooth group, the second secondary tooth group, the 3rd secondary tooth group constitute by some straight-tooth with identical chamfer angle; Described main tooth group is made of some straight-tooth.
Further, described surplus milling tooth group, the first secondary tooth group, the second secondary tooth group, the 3rd position of secondary tooth group on cutterhead are identical with the formed radius in cutterhead center; The radius of described main tooth group on the cutter radius direction is less than the radius of other tooth groups.
Further, the chamfering height of the described the 3rd secondary tooth group is a blade root water jacket chamfering height; Its facewidth is slightly less than the facewidth of main tooth group.
Further, the chamfering height of the described second secondary tooth group is slightly less than the chamfering height of the 3rd secondary tooth group; Its facewidth is slightly less than the facewidth of the 3rd secondary tooth group.
Further, the chamfering height of the described first secondary tooth group is slightly less than the chamfering height of the second secondary tooth group; Its facewidth is slightly less than the facewidth of the second secondary tooth group.
Further, the chamfering height of described surplus milling tooth group is slightly less than the chamfering height of the first secondary tooth group; Its facewidth is slightly less than the facewidth of the first secondary tooth group.
Advantage of the present utility model is: surplus milling tooth group, the first secondary tooth group, the second secondary tooth group, the 3rd secondary tooth group arranged clockwise combination of adopting chamfering height, the facewidth to increase gradually, the accuracy of blade root chamfering when having improved milling, main tooth group has effectively guaranteed the dimensional tolerance of blade root groove width, adopt the milling cutter of this structure to finish simultaneously, improved production efficiency the water jacket of blade root and the milling of chamfering.
Description of drawings
Figure is the blade root water jacket of a kind of turbine blade of the present utility model and the structural representation of chamfering face and side cutter.
The specific embodiment
As shown in the figure, the utility model is made of cutterhead 1 and straight-tooth blade 2, and straight-tooth blade 2 is evenly distributed on the periphery of cutterhead 1.Straight-tooth blade 2 is made up of by arranged clockwise surplus milling tooth group A, the first secondary tooth group B, the second secondary tooth group C, the 3rd secondary tooth group D and main tooth group E.
Its concrete structure is: surplus milling tooth group A, the first secondary tooth group B, the second secondary tooth group C, the 3rd secondary tooth group D constitute by the straight-tooth of some band chamferings, and its radius on the cutter radius direction is all identical; Main tooth group E is made of some straight-tooth, and its radius on the cutter radius direction is less than the radius of other tooth groups, and semidiameter is the height of blade root water jacket chamfering.
For blade root water jacket and the chamfering milling effect that improves blade, we are made as the facewidth of main tooth group E the width of blade root water jacket; The chamfering height of the 3rd secondary tooth group D is made as blade root water jacket chamfering height; Its facewidth is slightly less than the facewidth of main tooth group E; The chamfering height of the second secondary tooth group C is slightly less than the chamfering height of the 3rd secondary tooth group D; Its facewidth is slightly less than the facewidth of the 3rd secondary tooth group D.The chamfering height of the first secondary tooth group B is slightly less than the chamfering height of the second secondary tooth group C; Its facewidth is slightly less than the facewidth of the second secondary tooth group C.The chamfering height of surplus milling tooth group A is slightly less than the chamfering height of the first secondary tooth group B; Its facewidth is slightly less than the facewidth of the first secondary tooth group B.Wherein, main tooth group E is used to guarantee the dimensional tolerance of the water jacket groove width of blade root, and the water jacket chamfering precision of blade root is by the 3rd secondary tooth group D control.
During milling, the surplus milling tooth group A of cutterhead 1, the first secondary tooth group B, the second secondary tooth group C, the 3rd secondary tooth group D and main tooth group E successively contact with the blade root of blade, surplus milling tooth group A mills out earlier the water jacket of be near the mark groove width and chamfering height on the inside groove of blade root, progressively process by the chamfering height of the first secondary tooth group B, the second secondary tooth group C external groove again, finish the chamfering of external groove, the high accuracy processing of groove width respectively by the 3rd secondary tooth group D and main tooth group E at last.Whole process is finished the high accuracy processing of water jacket and chamfering simultaneously, has improved production efficiency, has reduced production cost.
Claims (7)
1. the blade root water jacket of a turbine blade and chamfering face and side cutter, constitute by cutterhead and straight-tooth blade, described straight-tooth blade is evenly distributed on the periphery of cutterhead, it is characterized in that: described straight-tooth blade by surplus milling tooth group, the first secondary tooth group, the second secondary tooth group, the 3rd secondary tooth group and main tooth group by arranged clockwise and be fixed on the periphery of cutterhead and form.
2. the blade root milling cutter of a kind of turbine blade according to claim 1 is characterized in that:
Described surplus milling tooth group, the first secondary tooth group, the second secondary tooth group, the 3rd secondary tooth group constitute by some straight-tooth with identical chamfer angle.
3. the blade root milling cutter of a kind of turbine blade according to claim 1 is characterized in that:
The tooth of described main tooth group is a straight-tooth.
4. the blade root milling cutter of a kind of turbine blade according to claim 1 is characterized in that:
Described surplus milling tooth group, the first secondary tooth group, the second secondary tooth group, the 3rd position of secondary tooth group on cutterhead are identical with the formed radius in cutterhead center, and the radius of described main tooth group on the cutter radius direction is less than the radius of other tooth groups.
5. the blade root milling cutter of a kind of turbine blade according to claim 1 is characterized in that:
The chamfering height of the described second secondary tooth group is slightly less than the chamfering height of the 3rd secondary tooth group; Its facewidth is slightly less than the facewidth of the 3rd secondary tooth group.
6. the blade root milling cutter of a kind of turbine blade according to claim 1 is characterized in that:
The chamfering height of the described first secondary tooth group is slightly less than the chamfering height of the second secondary tooth group; Its facewidth is slightly less than the facewidth of the second secondary tooth group.
7. the blade root milling cutter of a kind of turbine blade according to claim 1 is characterized in that:
The chamfering height of described surplus milling tooth group is slightly less than the chamfering height of the first secondary tooth group; Its facewidth is slightly less than the facewidth of the first secondary tooth group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201580916U CN201470969U (en) | 2009-06-08 | 2009-06-08 | Face and side milling cutter of blade root outer groove and chamfer of steam turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201580916U CN201470969U (en) | 2009-06-08 | 2009-06-08 | Face and side milling cutter of blade root outer groove and chamfer of steam turbine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201470969U true CN201470969U (en) | 2010-05-19 |
Family
ID=42407209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201580916U Expired - Fee Related CN201470969U (en) | 2009-06-08 | 2009-06-08 | Face and side milling cutter of blade root outer groove and chamfer of steam turbine blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201470969U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972869A (en) * | 2010-10-25 | 2011-02-16 | 东方电气集团东方汽轮机有限公司 | Fork type blade root milling cutter of turbine blade |
| CN102862039A (en) * | 2012-08-31 | 2013-01-09 | 哈尔滨汽轮机厂有限责任公司 | Method for machining blade root milling cutter |
| CN103769663A (en) * | 2014-02-12 | 2014-05-07 | 哈尔滨理工大学 | Special cutting-width-variable three-edge milling cutter for grooving overall blade disk |
| CN110337341A (en) * | 2017-02-16 | 2019-10-15 | 伊斯卡有限公司 | With the tool body of inner cutter receiving cavity, cutting element and for the chamfer cutting cutter of cutting element with resilient clamp members |
| CN112059296A (en) * | 2020-08-21 | 2020-12-11 | 梁丽 | Auxiliary cutting device for hotpot basin bottom |
-
2009
- 2009-06-08 CN CN2009201580916U patent/CN201470969U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972869A (en) * | 2010-10-25 | 2011-02-16 | 东方电气集团东方汽轮机有限公司 | Fork type blade root milling cutter of turbine blade |
| CN101972869B (en) * | 2010-10-25 | 2012-07-04 | 东方电气集团东方汽轮机有限公司 | Fork type blade root milling cutter of turbine blade |
| CN102862039A (en) * | 2012-08-31 | 2013-01-09 | 哈尔滨汽轮机厂有限责任公司 | Method for machining blade root milling cutter |
| CN102862039B (en) * | 2012-08-31 | 2014-08-13 | 哈尔滨汽轮机厂有限责任公司 | Method for machining blade root milling cutter |
| CN103769663A (en) * | 2014-02-12 | 2014-05-07 | 哈尔滨理工大学 | Special cutting-width-variable three-edge milling cutter for grooving overall blade disk |
| CN103769663B (en) * | 2014-02-12 | 2016-04-13 | 哈尔滨理工大学 | Wide face and side cutter is cut in blisk special change of slotting |
| CN110337341A (en) * | 2017-02-16 | 2019-10-15 | 伊斯卡有限公司 | With the tool body of inner cutter receiving cavity, cutting element and for the chamfer cutting cutter of cutting element with resilient clamp members |
| CN112059296A (en) * | 2020-08-21 | 2020-12-11 | 梁丽 | Auxiliary cutting device for hotpot basin bottom |
| CN112059296B (en) * | 2020-08-21 | 2022-05-17 | 梁丽 | Auxiliary cutting device for hotpot basin bottom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20110608 |