CN202861852U - Vertical tool for numerical control machining straight-line steam passage back arc of steam turbine vane - Google Patents
Vertical tool for numerical control machining straight-line steam passage back arc of steam turbine vane Download PDFInfo
- Publication number
- CN202861852U CN202861852U CN2012205113568U CN201220511356U CN202861852U CN 202861852 U CN202861852 U CN 202861852U CN 2012205113568 U CN2012205113568 U CN 2012205113568U CN 201220511356 U CN201220511356 U CN 201220511356U CN 202861852 U CN202861852 U CN 202861852U
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- CN
- China
- Prior art keywords
- cushion block
- numerical control
- vane
- steam passage
- control machining
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- Expired - Fee Related
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Abstract
The utility model relates to a vertical tool for numerical control machining a straight-line steam passage back arc of a steam turbine vane. The vertical tool for numerical control machining the straight-line steam passage back arc of the steam turbine vane is characterized in that the vertical tool for numerical control machining the straight-line steam passage back arc of the steam turbine vane comprises a baseboard, a cushion block and a pair of pressing rings, wherein the cushion block is vertically arranged on the baseboard, a vane installing groove is milled on a front surface of the cushion block, an inner arc-shaped surface locating boss is arranged at the bottom of the vane installing groove, the pair of the pressing rings are rectangle-shaped, and back borders of the pressing rings are connected with a locking bolt in a threading mode. The vertical tool for numerical control machining the straight-line steam passage back arc of the steam turbine vane has the advantages that a vanes is embedded inside the vane installing groove, an inner arc-shaped surface of the vane is attached tightly to the inner arc-shaped surface locating boss, the pair of the pressing rings and the cushion block are matched to clamp a crown portion and a root portion of the vane, and accordingly the steam passage back arc is processed. A profile model is not needed, only a molded line cushion block is needed, the processing process is stable, location degree of a molded surface can be adjusted through a program and processed, after the location degree is completely the same with a inspecting sample, overcutting is avoided during mass production, tool cost is lowered greatly, a rejection rate is reduced, and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of turbine Blade Machining frock, particularly the frock of the straight molded line back arc of gas passageway of a kind of vertical numerical control processing vapor turbine blade.
Background technology
When processing vapor turbine blade back of the body arc, conventional method is to adopt normal horizontal miller, the steam passage frock is installed on the workbench, in the steam passage frock steam passage inner arc molded line cushion block, briquetting, trim ring and pattern is installed again, carry out the copying type milling by face and side cutter.Because there are following several point defects in this processing: the method that 1, pattern cannot be fully tangent into and out of R position, vapour limit in fabrication is made, causing must not be in full accord with the inspection model behind the convex profile copying.2, owing to pattern in process weares and teares easily, can cause into and out of R position, vapour limit over-cutting occurs easily.3, must the corresponding a kind of pattern of each product and cushion block for the requirement of pattern and molded line cushion block.4, cutter require also very strict because the kind of product is more, various blades to open shelves different, so each kind will join corresponding cutter, cutter is wide understand and cut, the surplus that cutter is narrow leaves the processing of rear road for is with regard to greatly.5, the steam passage frock also has certain defective, and especially turn can differ after long-term the use in the variation of elastic force dynamics, so that the surface of machining blade can not be in full accord with the pattern shape, even over-cutting can occur.
Summary of the invention
The technical problems to be solved in the utility model provides that a kind of frock cost is low, scrappage is low and the frock of the straight molded line back arc of gas passageway of vertical numerical control processing vapor turbine blade of high efficiency.
For solving the problems of the technologies described above, the technical solution of the utility model is: the frock of the straight molded line back arc of gas passageway of a kind of vertical numerical control processing vapor turbine blade, it is characterized in that: comprise base plate, cushion block and a pair of trim ring, cushion block is vertically mounted on the base plate, the front of cushion block is milled with the blades installation groove that runs through the upper and lower end face of cushion block, and the bottom land of blades installation groove arranges interior arc shaped surface positioning boss; A pair of rectangle trim ring matches to width about the both sides frame inner width of trim ring and cushion block, and a clamping screw is threaded on the rear frame of trim ring.
The utility model has the advantage of: blade embeds in the blades installation groove, and blade face is close to interior arc shaped surface positioning boss; Steam passage profile part is avoided at the integral shroud and the blade root position that utilize a pair of trim ring to cooperate with cushion block to clamp blade, base is fixed on the workbench of vertical numerical control milling machine, by the processing of computer programming Software Create procedure control cutter path route again.Need not to use pattern, only need a molded line cushion block, the turnover vapour side of blade is installed in wherein fully, and process is more stable; Cutter only need to use face and side cutter, and is so not strict to the requirement of width, the opening shelves and can adjust by the numerical control program Z axis of blade; For the position degree of profile can by program debugging processing fully and the inspection model consistent after, batch machining over-cutting can not occur again; Greatly reduce the frock cost, reduce scrappage, enhance productivity.
Description of drawings
Fig. 1 is the frock top view of the straight molded line back arc of gas passageway of the utility model vertical numerical control processing vapor turbine blade.
Fig. 2 is along A-A line profile among Fig. 1.
Fig. 3 is along B-B line profile among Fig. 1.
Fig. 4 is the utility model cushion block top view.
Fig. 5 is the utility model cushion block rearview.
The specific embodiment
As shown in Figure 1, 2, 3, comprise cushion block 1, interior arc shaped surface positioning boss 2, rectangle trim ring 3, clamping screw 4, base plate 5.
The list structure that above-mentioned cushion block 1 arranges for vertical direction, shown in Fig. 4,5, the front of cushion block 1 is milled with the blades installation groove that runs through cushion block 1 upper and lower end face, the bottom land of blades installation groove arranges interior arc shaped surface positioning boss 2, leave certain gap between the cell wall of interior arc shaped surface positioning boss 2 and blades installation groove, about general 2mm.
A pair of rectangle trim ring 3 matches to width about the both sides frame inner width of rectangle trim ring and cushion block 1, namely is slightly larger than the left and right sides width of cushion block 1; The clamping screw 4 that is threaded on the rear frame of rectangle trim ring 3, the thread head of this clamping screw 4 stretches in the rectangle trim ring 3.
Cushion block 1 is installed on the base plate 5, bores the screwed hole of three distributions triangular in shape on the cushion block 1, and wherein, middle tap drill is in the lower surface of interior arc shaped surface positioning boss 2; Bore three counterbores corresponding with above-mentioned screwed hole on the base plate 5, realize the fixing of cushion block 1 and base plate 5 by the set bolt that passes the locking of counterbore and screwed hole.
Operation principle:
Claims (1)
1. the frock of the straight molded line back arc of gas passageway of vertical numerical control processing vapor turbine blade, it is characterized in that: comprise base plate, cushion block and a pair of trim ring, cushion block is vertically mounted on the base plate, the front of cushion block is milled with the blades installation groove that runs through the upper and lower end face of cushion block, and the bottom land of blades installation groove arranges interior arc shaped surface positioning boss; A pair of rectangle trim ring matches to width about the both sides frame inner width of trim ring and cushion block, and a clamping screw is threaded on the rear frame of trim ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205113568U CN202861852U (en) | 2012-10-08 | 2012-10-08 | Vertical tool for numerical control machining straight-line steam passage back arc of steam turbine vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205113568U CN202861852U (en) | 2012-10-08 | 2012-10-08 | Vertical tool for numerical control machining straight-line steam passage back arc of steam turbine vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202861852U true CN202861852U (en) | 2013-04-10 |
Family
ID=48028608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205113568U Expired - Fee Related CN202861852U (en) | 2012-10-08 | 2012-10-08 | Vertical tool for numerical control machining straight-line steam passage back arc of steam turbine vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202861852U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639718A (en) * | 2013-11-21 | 2014-03-19 | 四川成发航空科技股份有限公司 | General clamp for machining blade molded line |
| CN106078274A (en) * | 2016-08-15 | 2016-11-09 | 哈尔滨汽轮机厂有限责任公司 | Nuclear steam turbine low pressure second last stage blade lacing wire boss Boring machine processing clamping device |
| CN106181474A (en) * | 2016-08-15 | 2016-12-07 | 哈尔滨汽轮机厂有限责任公司 | Supercritical gas-turbine low-pressure last stage blade lacing wire boss Boring machine processing clamping device |
-
2012
- 2012-10-08 CN CN2012205113568U patent/CN202861852U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639718A (en) * | 2013-11-21 | 2014-03-19 | 四川成发航空科技股份有限公司 | General clamp for machining blade molded line |
| CN103639718B (en) * | 2013-11-21 | 2016-04-13 | 四川成发航空科技股份有限公司 | The universal fixturing of machining blade molded line |
| CN106078274A (en) * | 2016-08-15 | 2016-11-09 | 哈尔滨汽轮机厂有限责任公司 | Nuclear steam turbine low pressure second last stage blade lacing wire boss Boring machine processing clamping device |
| CN106181474A (en) * | 2016-08-15 | 2016-12-07 | 哈尔滨汽轮机厂有限责任公司 | Supercritical gas-turbine low-pressure last stage blade lacing wire boss Boring machine processing clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130410 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |