CN209174977U - A kind of cutter for blade back sagittal plane finishing - Google Patents
A kind of cutter for blade back sagittal plane finishing Download PDFInfo
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- CN209174977U CN209174977U CN201822064846.8U CN201822064846U CN209174977U CN 209174977 U CN209174977 U CN 209174977U CN 201822064846 U CN201822064846 U CN 201822064846U CN 209174977 U CN209174977 U CN 209174977U
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- blade
- cutter
- shear blade
- sagittal plane
- shear
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Abstract
The utility model provides a kind of cutter for blade back sagittal plane finishing, can solve it is existing high using standard slotting cutter Milling Machining integral shroud back sagittal plane rear surface roughness, the problem of leading to blade rejection, increase manufacturing cost.It includes standard slotting cutter, and the standard slotting cutter includes at least four shear blades, and the height of one of them shear blade is 0.2mm ~ 0.3mm higher than the height of shear blade described in remaining.
Description
Technical field
The utility model relates to blade processing field, specially a kind of cutter for blade back sagittal plane finishing.
Background technique
The effect of integral shroud is to reduce quadratic loss, improves turbine efficiency.The integral shroud of adjacent blades can reduce leaf after pushing against
The torsional deformation of piece and bending deformation, enhancing rigidity, improve the vibration frequency of blade.In blade assembly, two neighboring blade
Integral shroud back sagittal plane mutually fit, so to back sagittal plane surface quality and requirement on machining accuracy it is quite high, generally
Integral shroud back sagittal plane pitch accuracy requires to reach ± 0.02mm, and surface roughness requirements reach Ra0.8.
Existing integral shroud is carried on the back, the processing scheme of sagittal plane is, on five shaft vertical Milling Machining centers, blade is carried out single drive
It positions (i.e. one end of blade is fixed on the driving shaft at Milling Machining center, and the other end is held out against with top), then uses hard alloy
The shear blade Milling Machining integral shroud of standard slotting cutter carries on the back sagittal plane.Standard slotting cutter has multiple shear blades, and multiple shear blades are theoretically in
Same plane, but due to the presence of mismachining tolerance, cause there are height error between shear blade, such error causes Milling Machining leaf
Blade is easy to generate vibration when hat back sagittal plane, processes poor rigidity, and the surface roughness for eventually leading to integral shroud back sagittal plane is high,
Surface roughness about Ra3.2 leads to blade rejection, increases manufacturing cost.
Summary of the invention
Blade rejection is led to using standard slotting cutter Milling Machining integral shroud back sagittal plane rear surface roughness height for existing,
The technical issues of increasing manufacturing cost, the utility model provide a kind of cutter for blade back sagittal plane finishing, energy
Guarantee that the surface roughness of integral shroud back sagittal plane reaches design requirement, reduces manufacturing cost.
Its technical solution is such that a kind of cutter for blade back sagittal plane finishing comprising standard slotting cutter,
The standard slotting cutter includes at least four shear blades, it is characterised in that: the height of one of them shear blade is than bottom described in remaining
High 0.2mm ~ the 0.3mm of the height of sword.
It is further characterized by:
The height of one of them shear blade is 0.3mm higher than the height of shear blade described in remaining.
The quantity of the shear blade is four.
TiAlN coating is coated on the shear blade.
The beneficial effects of the utility model are:
The cutter of the utility model makes the height of one of shear blade than remaining shear blade on the basis of standard slotting cutter
The high 0.2mm ~ 0.3mm of height, i.e., remaining shear blade is ground into low 0.2mm ~ 0.3mm, thus can guarantee it is in finishing finally, remaining
Low shear blade is not involved in finishing, only one high shear blade is contacted with face to be processed, effectively eliminates due to shear blade height
It is low it is uneven caused by finished surface vibration problems, thoroughly solve and perplex the surface quality of such blade processing for a long time and ask
Topic, surface quality qualification rate can reach 100%, significantly improve the quality and stability of blade processing, which is designed as
The chipping allowance of 0.2mm ~ 0.3mm has been reserved in the finishing of 0.2mm ~ 0.3mm, as high shear blade, and size design is reasonable, can
The cutting edge service life of high shear blade is effectively ensured.
Detailed description of the invention
Fig. 1 is the main view of the utility model cutter；
Fig. 2 is the shear blade height schematic diagram of the utility model cutter.
Specific embodiment
See Fig. 1 to Fig. 2, a kind of cutter for blade back sagittal plane finishing of the utility model comprising standard is vertical
Milling cutter 1, standard slotting cutter 1 include at least four shear blades, and the height of one of shear blade is h=0.2mm higher than the height of remaining shear blade
~ 0.3mm is coated with TiAlN coating on shear blade, enhances the wearability of shear blade, tool life,.In Fig. 1 and Fig. 2
Shear blade quantity is four, respectively shear blade 1, shear blade 2 22, shear blade 3 23 and shear blade 4 24, wherein shear blade 2 22, shear blade three
The 23 and low 0.2mm ~ 0.3mm of unification mill on the basis of standard slotting cutter of shear blade 4 24, preferably grinds low 0.3mm.
Blade back sagittal plane method for finishing manufactured is that blade is carried out to single drive to position on five shaft vertical Milling Machining centers,
By above-mentioned Cutting tool installation manner on the main shaft at five shaft vertical Milling Machining centers, according to blade backwards to face or the geomery of sagittal plane
Cutter walking path is woven, finish-milling processing, machined parameters are then carried out are as follows: cutter linear velocity is 180m/min ~ 200m/min,
It is preferred that cutter linear velocity is 200m/min, cutter feed engagement 0.05mm/r, cutting-in 0.2mm ~ 0.3mm, preferably cutting-in
0.2mm。
Low 0.3mm, roughing are ground so that shear blade 2 22, shear blade 3 23 and shear blade 4 24 are unified on the basis of standard slotting cutter
For being 0.2mm to the machining allowance that finishing is stayed, then in entire finishing passes, shear blade 2 22, shear blade 3 23 and shear blade four
24 are not involved in cutting, and only shear blade 1 participates in finishing cutting.
Low 0.2mm, roughing are ground so that shear blade 2 22, shear blade 3 23 and shear blade 4 24 are unified on the basis of standard slotting cutter
For being 0.5mm to the machining allowance that finishing is stayed, then shear blade 1, shear blade 2 22, shear blade 3 23 and shear blade 4 24 are joined jointly
Only have shear blade 1 to participate in finishing cutting with cutting 0.3mm, remaining 0.2mm.
Claims (4)
1. a kind of cutter for blade back sagittal plane finishing comprising standard slotting cutter, the standard slotting cutter include extremely
Few four shear blades, it is characterised in that: the height of one of them shear blade is 0.2mm higher than the height of shear blade described in remaining ~
0.3mm。
2. a kind of cutter for blade back sagittal plane finishing according to claim 1, it is characterised in that: one of them
The height of the shear blade is 0.3mm higher than the height of shear blade described in remaining.
3. a kind of cutter for blade back sagittal plane finishing according to claim 1, it is characterised in that: the shear blade
Quantity be four.
4. a kind of cutter for blade back sagittal plane finishing according to claim 1, it is characterised in that: the shear blade
It is upper to be coated with TiAlN coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822064846.8U CN209174977U (en) | 2018-12-10 | 2018-12-10 | A kind of cutter for blade back sagittal plane finishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822064846.8U CN209174977U (en) | 2018-12-10 | 2018-12-10 | A kind of cutter for blade back sagittal plane finishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209174977U true CN209174977U (en) | 2019-07-30 |
Family
ID=67376405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822064846.8U Active CN209174977U (en) | 2018-12-10 | 2018-12-10 | A kind of cutter for blade back sagittal plane finishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209174977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513975A (en) * | 2018-12-10 | 2019-03-26 | 无锡透平叶片有限公司 | A kind of cutter and processing method for blade back sagittal plane finishing |
-
2018
- 2018-12-10 CN CN201822064846.8U patent/CN209174977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513975A (en) * | 2018-12-10 | 2019-03-26 | 无锡透平叶片有限公司 | A kind of cutter and processing method for blade back sagittal plane finishing |
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