CN2801351Y - Straight handle large screw angle milling cutter for christmas tree type leaf root - Google Patents
Straight handle large screw angle milling cutter for christmas tree type leaf root Download PDFInfo
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- CN2801351Y CN2801351Y CN 200520043577 CN200520043577U CN2801351Y CN 2801351 Y CN2801351 Y CN 2801351Y CN 200520043577 CN200520043577 CN 200520043577 CN 200520043577 U CN200520043577 U CN 200520043577U CN 2801351 Y CN2801351 Y CN 2801351Y
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- milling cutter
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Abstract
The utility model relates to a mechanical processing tool of a steam turbine, particularly a Christmas tree type leaf and root milling tool with a straight shank and a large helix angle. The Christmas tree type leaf and root milling tool with a straight shank and a large helix angle comprises a tool bit, a tool shank and a cutting edge. The utility model is characterized in that a cutting part is provided with a helix-shaped gullet, a helix angle of the gullet is 25 DEG to 30 DEG, the tool shank is the straight shank and the number of teeth of the milling tool is four teeth or five teeth. The utility model has the advantages of stable cutting, high cutting efficiency and durability and smaller diameter of the cutting tool; a clamping part is in a straight shank form, and the utility model is suitable for a numerical control processing center.
Description
(1) technical field
The utility model relates to the machining tool of steam turbine, relates in particular to staight shank large helix angle Xmas-tree blade root milling cutter.
(2) background technology
Along with turbine blade is made new technology, new technology constantly develops, require efficiently to finish the processing of blade root molded lines at numerical control machining center.Original blade root processing adopts the straight trough form cutter to finish on machine tool, and the cutting edge of straight trough form cutter is cut simultaneously and cut out, and impulsive force is quite big, and milling cutter diameter is not suitable for using at numerical control machining center in 140 millimeter.
(3) summary of the invention
The purpose of this utility model is to provide a kind of staight shank large helix angle Xmas-tree blade root milling cutter, this large helix angle form cutter stable cutting, stock-removing efficiency and durability height, milling cutter diameter is less, its clamping is the staight shank form partly, is suitable for numerical control machining center and uses.
The utility model is achieved in that a kind of staight shank large helix angle Xmas-tree blade root milling cutter, comprises cutter head, handle of a knife, cutting edge, it is characterized in that cutting partly has the screw type teeth groove, and the teeth groove helical angle is 25 ° to 30 °, and handle of a knife is a staight shank.
Above-mentioned staight shank large helix angle Xmas-tree blade root milling cutter, the number of teeth of described milling cutter is 4 teeth or 5 teeth.
The utility model adopts large helix angle form cutter processing blade root, because the Tool in Cutting velocity is not orthogonal to cutting edge, form cutter has just possessed the bevelling function, load greatly reduces on the cutting edge unit length, thereby obtained the stationarity of cutting, this is that the high rotating speed of such cutter, big cutting-in, fast feed have been created condition, and the stock-removing efficiency of this form cutter and durability all increase significantly.
The molded lines of the utility model staight shank large helix angle Xmas-tree blade root milling cutter is a kind of comparatively complicated Xmas-tree blade root molded lines, profile of tooth tooth pitch dimension precision requirement height; The inventor has found the offset of cutter molded lines according to the movement relation of emery wheel and milling cutter, has set up Mathematical Modeling, and then the formed grinding wheel molded lines is carried out multiple correction, finishes relief grinding to milling cutter with the accurate molded lines of formed grinding wheel.
The utility model borings Tool in Cutting is steady, stock-removing efficiency and durability height, and milling cutter diameter is less, and its clamping is the staight shank form partly, is suitable for numerical control machining center and uses.
(4) description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model staight shank large helix angle Xmas-tree blade root milling cutter construction schematic diagram.
Fig. 2 is a staight shank large helix angle Xmas-tree blade root milling cutter side view.
Among the figure: 1 cutter head, 2 handle of a knifes, 3 cutting edges, 4 spiral alveolars, 5 helical angles.
(5) specific embodiment
Referring to Fig. 1, Fig. 2, a kind of staight shank large helix angle Xmas-tree blade root milling cutter comprises cutter head 1, handle of a knife 2, cutting edge 3, cutting edge 3 cutting edge molded lines are type in the shape of a spiral, teeth groove 4, and teeth groove helical angle 5 is 25 ° to 30 °, handle of a knife 2 is a staight shank, and the number of teeth of milling cutter is 4 teeth or 5 teeth.This staight shank large helix angle Xmas-tree blade root milling cutter is applicable to that machined material is the good heat-resistance stainless steel of comprehensive mechanical property, in numerical control machining center, use, in the roughing stage of blade root, characteristics with high rotating speed, big cutting-in, fast feed, stable cutting, stock-removing efficiency and durability height.
An embodiment of the present utility model is 25 ° for helical angle 5, and cutter tooth number is 4 teeth, and cutter head 1 diameter is 65 millimeters.
Claims (2)
1. a staight shank large helix angle Xmas-tree blade root milling cutter comprises cutter head, handle of a knife, cutting edge, it is characterized in that cutting partly has the screw type teeth groove, and the teeth groove helical angle is 25 ° to 30 °, and handle of a knife is a staight shank.
2. staight shank large helix angle Xmas-tree blade root milling cutter according to claim 1, the number of teeth that it is characterized in that milling cutter is 4 teeth or 5 teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520043577 CN2801351Y (en) | 2005-07-20 | 2005-07-20 | Straight handle large screw angle milling cutter for christmas tree type leaf root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520043577 CN2801351Y (en) | 2005-07-20 | 2005-07-20 | Straight handle large screw angle milling cutter for christmas tree type leaf root |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2801351Y true CN2801351Y (en) | 2006-08-02 |
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ID=36846056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520043577 Expired - Lifetime CN2801351Y (en) | 2005-07-20 | 2005-07-20 | Straight handle large screw angle milling cutter for christmas tree type leaf root |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2801351Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102089106A (en) * | 2008-07-30 | 2011-06-08 | Osg株式会社 | Method of cutting tree-shaped groove and rotary cutting tool |
| CN102099139A (en) * | 2008-08-29 | 2011-06-15 | Osg株式会社 | Throw-away cutting rotary tool |
| CN101745680B (en) * | 2009-12-25 | 2011-12-07 | 东方电气集团东方汽轮机有限公司 | Cemented carbide profile milling cutter with large helix angle |
| CN102266975A (en) * | 2010-06-02 | 2011-12-07 | 日立工具股份有限公司 | Firtree-shaped tool and processing method for impeller blade root using the tool |
| CN101795804B (en) * | 2007-09-06 | 2012-02-29 | 株式会社东芝 | Grooving work method, and grooving work apparatus |
| US8714885B2 (en) | 2008-11-13 | 2014-05-06 | Osg Corporation | Throwaway rotary cutting tool |
| CN104191013A (en) * | 2014-08-01 | 2014-12-10 | 常州西利合金工具有限公司 | Precisely molded weld milling cutter |
| CN105171083A (en) * | 2015-08-28 | 2015-12-23 | 东方电气集团东方汽轮机有限公司 | Mechanically clamped type fir tree blade-root milling cutter |
| CN105364155A (en) * | 2015-12-24 | 2016-03-02 | 成都邦普切削刀具股份有限公司 | Metal cutting milling cutter |
| CN110405266A (en) * | 2019-07-31 | 2019-11-05 | 中国航发航空科技股份有限公司 | A kind of profile milling cutter and the method using profile milling cutter processing fir tree shape circular arc tenon |
-
2005
- 2005-07-20 CN CN 200520043577 patent/CN2801351Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795804B (en) * | 2007-09-06 | 2012-02-29 | 株式会社东芝 | Grooving work method, and grooving work apparatus |
| CN102089106A (en) * | 2008-07-30 | 2011-06-08 | Osg株式会社 | Method of cutting tree-shaped groove and rotary cutting tool |
| US8511949B2 (en) | 2008-07-30 | 2013-08-20 | Osg Corporation | Method of cutting tree-shaped groove and rotary cutting tool |
| CN102089106B (en) * | 2008-07-30 | 2013-05-15 | Osg株式会社 | Method of cutting tree-shaped groove and rotary cutting tool |
| CN102099139B (en) * | 2008-08-29 | 2014-10-15 | Osg株式会社 | Throw-away cutting rotary tool |
| US8807881B2 (en) | 2008-08-29 | 2014-08-19 | Osg Corporation | Throwaway rotary cutting tool |
| CN102099139A (en) * | 2008-08-29 | 2011-06-15 | Osg株式会社 | Throw-away cutting rotary tool |
| US8714885B2 (en) | 2008-11-13 | 2014-05-06 | Osg Corporation | Throwaway rotary cutting tool |
| CN101745680B (en) * | 2009-12-25 | 2011-12-07 | 东方电气集团东方汽轮机有限公司 | Cemented carbide profile milling cutter with large helix angle |
| CN102266975A (en) * | 2010-06-02 | 2011-12-07 | 日立工具股份有限公司 | Firtree-shaped tool and processing method for impeller blade root using the tool |
| CN104191013A (en) * | 2014-08-01 | 2014-12-10 | 常州西利合金工具有限公司 | Precisely molded weld milling cutter |
| CN105171083A (en) * | 2015-08-28 | 2015-12-23 | 东方电气集团东方汽轮机有限公司 | Mechanically clamped type fir tree blade-root milling cutter |
| CN105171083B (en) * | 2015-08-28 | 2017-08-04 | 东方电气集团东方汽轮机有限公司 | Clip type bacterial type blade root milling cutter |
| CN105364155A (en) * | 2015-12-24 | 2016-03-02 | 成都邦普切削刀具股份有限公司 | Metal cutting milling cutter |
| CN110405266A (en) * | 2019-07-31 | 2019-11-05 | 中国航发航空科技股份有限公司 | A kind of profile milling cutter and the method using profile milling cutter processing fir tree shape circular arc tenon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ELECTRIC POWER STATION EQUIPMENT CO. Free format text: FORMER OWNER: SHANGHAI TURBINE CO., LTD. Effective date: 20080509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080509 Address after: No. 188, Chun Chun Road, Shanghai, Minhang: 201100 Patentee after: Shanghai Electric Station Equipment Co., Ltd. Address before: No. 333, Jiangchuan Road, Shanghai, Minhang District: 200240 Patentee before: Shanghai Steam Turbine Co., Ltd. |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150720 Granted publication date: 20060802 |
|
| EXPY | Termination of patent right or utility model |