CN207873683U - A kind of sawing steam turbine blade auxiliary head special fixture - Google Patents
A kind of sawing steam turbine blade auxiliary head special fixture Download PDFInfo
- Publication number
- CN207873683U CN207873683U CN201721836235.XU CN201721836235U CN207873683U CN 207873683 U CN207873683 U CN 207873683U CN 201721836235 U CN201721836235 U CN 201721836235U CN 207873683 U CN207873683 U CN 207873683U
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- hole
- locating piece
- sawing
- auxiliary head
- steam turbine
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Abstract
A kind of sawing steam turbine blade auxiliary head special fixture, is related to a kind of movable vane piece auxiliary head special fixture.It is related to a kind of movable vane piece auxiliary head special fixture.The utility model is to solve the problems, such as that existing steam turbine blade processing efficiency is low.Fixture includes pedestal, locating piece, pressing plate, locating piece holding screw, pressing plate holding screw and supporting screw；The lower end of the pedestal is equipped with base boss, the upper surface of pedestal is equipped with 4 the first threaded holes and 1 the second threaded hole, the middle part of locating piece is equipped with dome arc and locating piece boss, four angles of locating piece are respectively equipped with through-hole, the pressing plate is equipped with third threaded hole and waist hole, third threaded hole coordinates with supporting screw, and waist hole is the through hole of pressing plate holding screw.Using the fixture of the utility model, processing efficiency is substantially increased, since cutting force is small in sawing machine sawing movable vane piece, movable vane piece machining accuracy has been effectively ensured.The utility model is for processing steam turbine blade auxiliary head.
Description
Technical field
The utility model is related to a kind of movable vane piece auxiliary head special fixtures.
Background technology
Blade is an important composition component of steam-turbine unit, and the processing for no integral shroud movable vane piece need to be stayed in lower end
There is 10mm long to lengthen auxiliary head (as shown in Figure 1), the drill centers on the auxiliary head of lower end processes quasi- leaf in a manner of one top of a folder
Then back arc lines curved surface in piece removes the auxiliary head of lower end, use the processing method in the coarse-fine milling of milling machine to remove this in the past auxiliary
Head is helped, not only processing efficiency is low, but also since the removal of big surplus influences blade processing quality.
Utility model content
The utility model is low, the ropy problem of blade processing that solve existing steam turbine blade processing efficiency,
A kind of sawing steam turbine blade auxiliary head special fixture is provided.
The utility model sawing steam turbine blade auxiliary head special fixture includes that pedestal, locating piece, pressing plate, locating piece are tight
Determine screw, pressing plate holding screw and supporting screw.
The lower end of the pedestal is equipped with base boss, and the size of the base boss is 70mm × 45mm, for positioning peace
On the jaw of sawing machine.
The upper surface of the pedestal is equipped with 4 the first threaded holes and 1 the second threaded hole, and the upper surface of pedestal is longitudinally flat
3 rectangular areas are divided into, wherein the first threaded hole is located at four angles of two neighboring rectangular area, the second threaded hole is located at surplus
A rectangular area remaining close to one end of base center.First threaded hole is M10 threaded holes, and second threaded hole is
M16 threaded holes.
The middle part of the locating piece is equipped with dome arc and locating piece boss, and the convex arc size is R55mm, the positioning
The width of block boss is 15mm.The dome arc is consistent with movable vane piece inner arc molding surface size, is used for location and installation movable vane piece.Institute
Locating piece boss is stated for left and right locating blades.
Four angles of the locating piece are respectively equipped with through-hole, and the through-hole is locating piece holding screw through hole, using calmly
Position block holding screw is by locating piece in the first threaded hole tightly on pedestal.
The pressing plate is equipped with third threaded hole and waist hole, and the third threaded hole coordinates with supporting screw, supporting screw
One, which is provided, for pressing plate compresses support.The waist hole is pressing plate holding screw through hole, using holding screw and pressing plate by movable vane
Piece is in the second threaded hole tightly on locating piece.The third threaded hole is M16 threaded holes.The size of the waist hole is
R8.25mm。
The beneficial effects of the utility model：
The utility model is directed to the machining status of movable vane piece, has developed sawing steam turbine blade auxiliary head special fixture.
Using the fixture, auxiliary head is fallen in roughing on sawing machine, and there are 1mm milling surpluses, then presses length of blade milling in CNC milling machine
Quasi- lower end auxiliary head substantially increases processing efficiency due to the use of the fixture of the utility model, processing efficiency improve 50% with
On, since cutting force is small in sawing machine sawing movable vane piece, movable vane piece machining accuracy has been effectively ensured.
Description of the drawings
Fig. 1 is structural schematic diagram of the steam-turbine unit without integral shroud movable vane piece；
Fig. 2 is the structural schematic diagram of the utility model sawing steam turbine blade auxiliary head special fixture；
Fig. 3 is the front view of the pedestal of the utility model movable vane piece auxiliary head special fixture；
Fig. 4 is the vertical view of the pedestal of the utility model movable vane piece auxiliary head special fixture；
Fig. 5 is the front view of the locating piece of the utility model movable vane piece auxiliary head special fixture；
Fig. 6 is the vertical view of the locating piece of the utility model movable vane piece auxiliary head special fixture；
Fig. 7 is the structural schematic diagram of the pressing plate of the utility model movable vane piece auxiliary head special fixture.
Specific implementation mode
Technical solutions of the utility model are not limited to act specific implementation mode set forth below, further include each specific implementation mode
Between arbitrary combination.
Specific implementation mode one：Illustrate present embodiment, present embodiment sawing steam turbine blade in conjunction with Fig. 1 to Fig. 7
Auxiliary head special fixture includes pedestal 1, locating piece 2, pressing plate 3, locating piece holding screw 4, pressing plate holding screw 5 and supporting screw
6；
The lower end of the pedestal 1 is equipped with base boss 1-1, and the upper surface of the pedestal 1 is equipped with 4 the first threaded hole 1-2
With 1 the second threaded hole 1-3, the upper surface of pedestal 1 is longitudinally equally divided into 3 rectangular areas, wherein the first threaded hole 1-2
Four angles in two neighboring rectangular area, the second threaded hole 1-3 are located at a remaining rectangular area close to the one of base center
End；
The middle part of the locating piece 2 is equipped in dome arc 2-1 and locating piece boss 2-2, the dome arc 2-1 and movable vane piece
Arc shaped surface size is consistent, and it is locating piece clamp screw that four angles of the locating piece 2, which are respectively equipped with through-hole 2-3, the through-hole 2-3,
4 through holes are followed closely, using locating piece holding screw 4 by locating piece 2 tightly on pedestal 1；
The pressing plate 3 is equipped with third threaded hole 3-1 and waist hole 3-2, and the third threaded hole 3-1 matches with supporting screw 6
It closes, the waist hole 3-2 is the through hole of pressing plate holding screw 5.
Specific implementation mode two：The present embodiment is different from the first embodiment in that：The size of the pedestal 1 is
The size of 200mm × 135mm, the base boss 1-1 are 70mm × 45mm.It is other same as the specific embodiment one.
Specific implementation mode three：The present embodiment is different from the first and the second embodiment in that：First threaded hole
1-2 is M10 threaded holes, and the second threaded hole 1-3 is M16 threaded holes.It is other the same as one or two specific embodiments.
Specific implementation mode four：Unlike one of present embodiment and specific implementation mode one to three：The locating piece
(2) size is 135mm × 125mm.It is other identical as one of specific implementation mode one to three.
Specific implementation mode five：Unlike one of present embodiment and specific implementation mode one to four：The dome arc
The size of 2-1 is R55mm, and the width of the locating piece boss 2-2 is 15mm.Other phases one of with specific implementation mode one to four
Together.
Specific implementation mode six：Unlike one of present embodiment and specific implementation mode one to five：The third spiral shell
Pit 3-1 is M16 threaded holes.It is other identical as one of specific implementation mode one to five.
Specific implementation mode seven：Unlike one of present embodiment and specific implementation mode one to six：The waist hole 3-2
Size be R8.25mm.It is other identical as one of specific implementation mode one to six.
Claims (7)
1. a kind of sawing steam turbine blade auxiliary head special fixture, it is characterised in that the fixture includes pedestal (1), locating piece
(2), pressing plate (3), locating piece holding screw (4), pressing plate holding screw (5) and supporting screw (6)；
The lower end of the pedestal (1) is equipped with base boss (1-1), and the upper surface of the pedestal (1) is equipped with 4 the first threaded holes
(1-2) and 1 the second threaded hole (1-3), is longitudinally equally divided into 3 rectangular areas, wherein the first spiral shell by the upper surface of pedestal (1)
Pit (1-2) is located at four angles of two neighboring rectangular area, and it is close that the second threaded hole (1-3) is located at a remaining rectangular area
One end of base center；
The middle part of the locating piece (2) is equipped with dome arc (2-1) and locating piece boss (2-2), the dome arc (2-1) and movable vane
Piece inner arc molding surface size is consistent, and four angles of the locating piece (2) are respectively equipped with through-hole (2-3), and the through-hole (2-3) is fixed
Position block holding screw (4) through hole, using locating piece holding screw (4) by locating piece (2) tightly on pedestal (1)；
The pressing plate (3) is equipped with third threaded hole (3-1) and waist hole (3-2), the third threaded hole (3-1) and supporting screw
(6) coordinate, the waist hole (3-2) is the through hole of pressing plate holding screw (5).
2. a kind of sawing steam turbine blade auxiliary head special fixture according to claim 1, it is characterised in that：The bottom
The size of seat (1) is 200mm × 135mm, and the size of the base boss (1-1) is 70mm × 45mm.
3. a kind of sawing steam turbine blade auxiliary head special fixture according to claim 1 or 2, it is characterised in that：Institute
It is M10 threaded holes to state the first threaded hole (1-2), and second threaded hole (1-3) is M16 threaded holes.
4. a kind of sawing steam turbine blade auxiliary head special fixture according to claim 3, it is characterised in that：It is described fixed
The size of position block (2) is 135mm × 125mm.
5. a kind of sawing steam turbine blade auxiliary head special fixture according to claim 1,2 or 4, it is characterised in that：
The size of the dome arc (2-1) is R55mm, and the width of the locating piece boss (2-2) is 15mm.
6. a kind of sawing steam turbine blade auxiliary head special fixture according to claim 5, it is characterised in that：Described
Three threaded holes (3-1) are M16 threaded holes.
7. a kind of sawing steam turbine blade auxiliary head special fixture according to claim 6, it is characterised in that：The waist
The size in hole (3-2) is R8.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721836235.XU CN207873683U (en) | 2017-12-25 | 2017-12-25 | A kind of sawing steam turbine blade auxiliary head special fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721836235.XU CN207873683U (en) | 2017-12-25 | 2017-12-25 | A kind of sawing steam turbine blade auxiliary head special fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207873683U true CN207873683U (en) | 2018-09-18 |
Family
ID=63504100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721836235.XU Active CN207873683U (en) | 2017-12-25 | 2017-12-25 | A kind of sawing steam turbine blade auxiliary head special fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207873683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829093A (en) * | 2021-10-09 | 2021-12-24 | 哈尔滨汽轮机厂有限责任公司 | Clamp for machining marine turbine nickel-based movable blade and interference machining method |
-
2017
- 2017-12-25 CN CN201721836235.XU patent/CN207873683U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829093A (en) * | 2021-10-09 | 2021-12-24 | 哈尔滨汽轮机厂有限责任公司 | Clamp for machining marine turbine nickel-based movable blade and interference machining method |
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