CN201659431U - Blade root arc milling tool - Google Patents
Blade root arc milling tool Download PDFInfo
- Publication number
- CN201659431U CN201659431U CN2009202660104U CN200920266010U CN201659431U CN 201659431 U CN201659431 U CN 201659431U CN 2009202660104 U CN2009202660104 U CN 2009202660104U CN 200920266010 U CN200920266010 U CN 200920266010U CN 201659431 U CN201659431 U CN 201659431U
- Authority
- CN
- China
- Prior art keywords
- blade root
- arc
- worm
- workbench
- blade
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a blade root arc milling tool, which comprises a bottom plate and a pair of supports arranged on the bottom plate and is characterized in that two arc-shaped guide tracks are arranged on the bottom plate, a workbench formed by a local worm wheel is arranged on the guide tracks, a worm engaged with the local worm wheel is arranged on the supports and a hand wheel is fixed on the end part of the worm. When the blade root arc is milled, the tool is placed on one side of a milling machine, a blade is fixed on the workbench, the worm drives the worm wheel to rotate through swaying the hand wheel, the workbench and the blade move along the arc-shaped guide tracks and thereby a blade root arc profiled with the arc is milled.
Description
Technical field
The utility model relates to a kind of frock, particularly a kind of blade root circular arc frock that makes things convenient for the milling blade.
Background technology
During the assembling steam turbine, the blade root of its blade is installed in the impeller groove of impeller, and circular arc of blade root and impeller groove fit tightly.And when the blade root circular arc of milling diameter more than 1.2 meters, traditional method is to adopt milling machine to mill out the inclined-plane of approximate circular arc, is not real circular arc, and when it was assembled in the impeller groove, both are for the some contact, and were stressed poor, influenced the overall performance of steam turbine.
The utility model content
The technical problems to be solved in the utility model provides a kind of frock that makes things convenient for milling blade root circular arc.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of blade root circular arc milling tool, comprise base plate, and be located at pair of brackets on the base plate, its innovative point is: have the twice arc guide rail on the described base plate, guide rail is provided with the workbench that is made of local worm gear, and described support is provided with and local worm gear engaged worm, and the end of worm screw is fixed with handwheel.
Advantage of the present utility model is: during the blade root circular arc of milling blade, frock is placed on a side of milling machine, with vanes fixed on workbench, by shaking handwheel, worm screw drives worm gear and rotates, make workbench and blade move, thereby mill out the blade root circular arc with the circular arc profiling along arc-shaped rail.
Description of drawings
Accompanying drawing is the structural representation of blade root circular arc milling tool of the present utility model.
The specific embodiment
As shown in drawings, the utility model relates to a kind of blade root circular arc milling tool, and it comprises base plate 1, arc guide rail 3, workbench 4, support 2, worm screw 5, handwheel 6.
Have twice arc guide rail 3 on the above-mentioned base plate 1, the arc radius of this arc guide rail 3 is identical with the blade root arc radius of blade to be processed, and guide rail 3 is provided with a workbench 4 that is made of local worm gear.Support 2 is fixed on the base plate 1 of workbench 4 one sides, on this support 2 worm screw 5 is housed, and transmission is formed in itself and workbench 4 engagements, and the end of worm screw 5 is connected with handwheel 6.
During use, above-mentioned frock is placed on a side of milling machine, with vanes fixed on workbench 4, the milling cutter of milling machine goes out near the to be processed of blade root, shake handwheel 6, worm screw 5 drives workbench 4 and moves along arc guide rail 3, makes blade do the motion identical with the arc of guide rail 3, thereby mills out the blade root circular arc identical with guide rail 3 arcs.Adopt the blade root circular arc milling tool of this structure, can mill out real blade root circular arc, make back blade root and the comprehensive engagement of impeller groove are installed, stress diminishes, and has improved assembling quality.
Claims (1)
1. blade root circular arc milling tool, comprise base plate, and be located at pair of brackets on the base plate, it is characterized in that: have the twice arc guide rail on the described base plate, guide rail is provided with the workbench that is made of local worm gear, described support is provided with and local worm gear engaged worm, and the end of worm screw is fixed with handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202660104U CN201659431U (en) | 2009-11-03 | 2009-11-03 | Blade root arc milling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202660104U CN201659431U (en) | 2009-11-03 | 2009-11-03 | Blade root arc milling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201659431U true CN201659431U (en) | 2010-12-01 |
Family
ID=43229842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202660104U Expired - Fee Related CN201659431U (en) | 2009-11-03 | 2009-11-03 | Blade root arc milling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201659431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179552A (en) * | 2011-04-07 | 2011-09-14 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
-
2009
- 2009-11-03 CN CN2009202660104U patent/CN201659431U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179552A (en) * | 2011-04-07 | 2011-09-14 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
| CN102179552B (en) * | 2011-04-07 | 2013-05-15 | 无锡透平叶片有限公司 | Method and special fixture for improving processed surface toughness of poppet root |
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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: 20101201 Termination date: 20111103 |