CN108714770A - A kind of method of engine rectification guide vane processing - Google Patents
A kind of method of engine rectification guide vane processing Download PDFInfo
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- CN108714770A CN108714770A CN201810540817.6A CN201810540817A CN108714770A CN 108714770 A CN108714770 A CN 108714770A CN 201810540817 A CN201810540817 A CN 201810540817A CN 108714770 A CN108714770 A CN 108714770A
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- 238000012545 processing Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000003801 milling Methods 0.000 claims abstract description 54
- 238000003754 machining Methods 0.000 claims abstract description 32
- 238000000227 grinding Methods 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000003672 processing method Methods 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/02—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece
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Abstract
A kind of processing method of engine rectification guide vane provided by the invention, includes the following steps：Step 1, bar is carried out to finish forge molding in molding die, obtains finish forge half-finished parts；Step 2, finish forge half-finished parts clamping is processed on CNC milling machine；Step 3, the Milling Machining half-finished parts clamping obtained by step 2 is processed on numerically control grinder；Step 4, the grinding half-finished parts clamping obtained by step 3 is processed to the processing for being finally completed engine rectification guide vane on turn-milling complex machining center；The processing method reduces the process in blade type face and the multiple conversion of part benchmark, improves the processing quality and precision of blade；Meanwhile the processing flow is simple, and three process is shorten to by more than ten procedures, effectively increases processing efficiency, the shortening process-cycle reaches 50% or more.
Description
Technical field
The invention belongs to engine compressor blade processing technologies, are related to a kind of side of engine rectification guide vane processing
Method.
Background technology
Certain type starts rectification guide blade structures referring to Fig. 1, blade by screw rod 1, installation flat 2, upper axle journal 3, upper round platform 4,
Blade end face 5, blade 6, trailing edge 7, blade end face 8, lower round platform 9, lower axle journal 10, guide groove 11, blade end face 12, leading edge 13,
Blade end face 14, upper false boss 15, lower false boss 16 form.Currently, the main method of domestic processing rectification guide vane
For：1) use die forging blank or bar, first milling technological datum, drill centers, with technological datum positioning it is rough turn up and down axle journal, then with
Axle journal and false boss positioning processing blade, finally with centre bore positioning accurate axle neck, Milling Machining blade end face.The disadvantage is that；
The first, complex process, process-cycle are long, and processing efficiency is low.The second, part poor rigidity in process, benchmark multiple conversions plus
Work error is big, and the concentricity of blade profile profile tolerance, blade profile torsion and upper and lower axle journal can not ensure design requirement.
Invention content
The purpose of the present invention is to provide a kind of processing methods of engine rectification guide vane, solve existing rectification
The processing method complex process of guide vane, the problem that the process-cycle is long, efficiency is low.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of processing method of engine rectification guide vane provided by the invention, includes the following steps：
Step 1, bar is carried out to finish forge molding in molding die, obtains finish forge half-finished parts, the finish forge semi-finished product
Part includes blade, upper false boss and lower false boss；
Step 2, finish forge half-finished parts clamping is processed on CNC milling machine, Milling Machining leading edge and trailing edge are until nothing
It is upper poor in part, obtain Milling Machining half-finished parts；
Step 3, by the Milling Machining half-finished parts clamping obtained by step 2 on numerically control grinder, grinding leading edge is carried out
And trailing edge, obtain grinding half-finished parts；
Step 4, the grinding half-finished parts clamping obtained by step 3 is added on turn-milling complex machining center
Work is machined with blade second end face, upper round platform, upper axle journal and screw rod successively on upper false boss at the upper end of blade；
It is machined with blade third end face, lower round platform and lower axle journal successively at the lower end of blade on lower false boss,
On blade the first blade end face is machined at upper false boss；Go out to add close to lower false boss on blade
Work has the 4th blade end face；
Wherein, the first blade end face and third blade end face are placed in trailing edge side, the second blade end face and the 4th blade
End face is placed in leading edge side, meanwhile, it is flat that installation is machined on upper axle journal；It is machined with guide groove on lower axle journal, is finally completed
The processing of engine rectification guide vane.
Preferably, in step 1, blade in finish forge half-finished parts without allowance, leading edge and trailing edge be reserved with 2~
The surplus of 3mm.
Preferably, in step 2, in processing, the machined parameters of CNC milling machine：Using the flat helical milling of a diameter of 12mm
Knife, revolution 1200r/min, amount of feeding 300mm/min.
Preferably, in step 3, in processing, the machined parameters of numerically control grinder：Sand-bed test is 12~20m/s, the amount of feeding
For 800~1000mm/min.
Preferably, in step 4, specific process is：
First, axle journal, upper round platform, blade second end face and screw rod in Vehicle Processing on upper false boss；
Then, close to the first blade of Milling Machining end face at upper false boss on blade, meanwhile, the Milling Machining on upper axle journal
It installs flat；
Then, Vehicle Processing lower axle neck, lower round platform and third blade end face on lower false boss；
Then, the 4th blade end face of Milling Machining on blade and at the lower false boss, meanwhile, on lower axle journal milling add
Work guide groove.
Preferably, in step 4, in Vehicle Processing, technological parameter：When roughing, rotating speed 800r/min, the amount of feeding are
0.08~0.1mm/min, cutting depth 0.8mm；When finishing, rotating speed 1200r/min, the amount of feeding are 0.06~0.8mm/
Min, cutting depth 0.03mm；When cutting thread, rotating speed 180r/min, cutting depth are 0.01~0.03mm.
Preferably, it in step 4, when Milling Machining installation is flat, selectsFlat screw-on cutter, technological parameter：Rotating speed is
1200r/min, amount of feeding 300mm/min；
At Milling Machining the first blade end face, profile milling cutter, technological parameter are selected：Rotating speed is 1250r/min, the amount of feeding
For 270mm/min；
At the 4th blade end face of Milling Machining, profile milling cutter, technological parameter are selected：Rotating speed is 1250r/min, the amount of feeding
For 270mm/min；
In Milling Machining guide groove, profile milling cutter, technological parameter are selected：Rotating speed is 2000r/min, the amount of feeding is
500mm/min。
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of processing method of engine rectification guide vane provided by the invention first adds bar in molding die
For work at finish forge half-finished parts, then by being processed to finish forge half-finished parts, which reduces blade type face
The multiple conversion of process and part benchmark improves the processing quality and precision of blade；Meanwhile processing flow letter
It is single, it is shorten to three process by more than ten procedures, effectively increases processing efficiency, the shortening process-cycle reaches 50% or more.
Further, the processing that more to process is carried out on turn-milling complex machining center reduces part multiple clamping benchmark
The accumulation of error that transfer zone comes.
Description of the drawings
Fig. 1 is finish forge half-finished parts structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram to rectification guide vane after processing is completed；
Wherein, 1, screw rod 2, installation be flat 3, upper axle journal 4, upper round platform 5, the first blade end face 6, blade 7, trailing edge
8, third blade end face 9, lower round platform 10, lower axle journal 11, guide groove 12, the 4th blade end face 13, leading edge 14, the second leaf
Body end face 15, upper false boss 16, lower false boss.
Specific implementation mode
Below in conjunction with the accompanying drawings, the present invention is described in more detail.
As shown in Figure 1 and Figure 2, the processing method of a kind of engine rectification guide vane provided by the invention, including following step
Suddenly：
Step 1, bar is carried out to finish forge molding in molding die, obtains finish forge half-finished parts, the finish forge semi-finished product
Part includes blade 6, upper false boss 15 and lower false boss 16, wherein and upper false boss 15 is arranged in the upper end of blade 6,
Lower false boss 16 is arranged in the lower end of blade 6, meanwhile, for blade 6 without allowance, the leading edge 13 and trailing edge 7 on blade 6 are pre-
There are the surplus of 2~3mm, upper false boss 15 and lower false boss 16 are reserved with surplus, which is more than or equal to 2.5mm；
Step 2, finish forge half-finished parts clamping is processed on CNC milling machine, Milling Machining leading edge 13 and trailing edge 7 are straight
It is poor in part, obtain Milling Machining half-finished parts；Wherein, in clamping, pass through upper false boss 15, lower false boss
16, the medial surface pair of two points and upper round platform 4 on the intermediate cross-section of 6 basin side of blade respectively away from 13 distance 3mm of trailing edge 7 and leading edge
Finish forge half-finished parts carry out positioning clamping, and then ensure the shape and size of trailing edge 7 and leading edge 13；
In processing, the machined parameters of CNC milling machine：Use flat screw-on cutter, the revolution 1200r/ of a diameter of 12mm
Min, amount of feeding 300mm/min；
Step 3, by the Milling Machining half-finished parts clamping obtained by step 2 on numerically control grinder, grinding leading edge is carried out
13 and trailing edge 7, while ensureing the size and shape of part, obtain grinding half-finished parts；Wherein, in clamping, pass through
Upper false boss 15, lower false boss 16,6 basin side of blade intermediate cross-section on respectively away from 13 distance 3mm of trailing edge 7 and leading edge two
The medial surface of a point and upper round platform 4 carries out positioning clamping to finish forge half-finished parts, and then ensures the shape of trailing edge 7 and leading edge 13
And size；
In processing, the machined parameters of numerically control grinder：Sand-bed test is 12~20m/s, the amount of feeding is 800~1000mm/
min；
Step 4, the grinding half-finished parts clamping obtained by step 3 is added on turn-milling complex machining center
Work is machined with blade second end face 14, upper round platform 4, upper axle journal 3 successively on upper false boss 15 at the upper end of blade 6
With screw rod 1；
Be machined with successively at the lower end of blade 6 on lower false boss 16 blade third end face 8, lower round platform 9 and under
Axle journal 11,
Wherein, the first blade end face 5 and third blade end face 8 are placed in trailing edge side, the second blade end face 14 and the 4th
Blade end face 12 is placed in leading edge side；
Meanwhile installation flat 2 is machined on upper axle journal 3；Guide groove 11 is machined on lower axle journal 10；
In specific processing,
First, axle journal 3, upper round platform 4, blade second end face 14 and screw rod 1 in Vehicle Processing on upper false boss 15；
Then, close to the first blade of Milling Machining end face 5 at upper false boss 15 on blade 6, meanwhile, on upper axle journal 3
Milling Machining installation flat 2；
Then, Vehicle Processing lower axle neck 10, lower round platform 9 and third blade end face 8 on lower false boss 16；
Then, on blade 6 and close to the 4th blade end face 12 of Milling Machining at lower false boss 16, meanwhile, in lower axle journal
Milling Machining guide groove 11 on 10；It is finally completed the processing of engine rectification guide vane.
Wherein, the Vehicle Processing technological parameter of turn-milling complex machining center is shown in Table one, Milling Machining technological parameter and is shown in Table two：
One Vehicle Processing technological parameter of table
| Rough turn processing | Smart car | Cutting thread | |
| F(mm/min) | 0.08~0.1 | 0.06~0.8 | |
| S(r/min) | 800 | 1200 | 180 |
| Ap(mm) | 0.8 | 0.03 | 0.01~0.03 |
Two Milling Machining technological parameter of table
Claims (7)
1. a kind of processing method of engine rectification guide vane, which is characterized in that include the following steps：
Step 1, bar is carried out to finish forge molding in molding die, obtains finish forge half-finished parts, the finish forge half-finished parts
Including blade (6), the upper end of blade (6) is provided with false boss (15), the lower end of blade (6) is provided with lower false boss
(16)；
Step 2, finish forge half-finished parts clamping is processed on CNC milling machine, Milling Machining leading edge (13) and trailing edge (7) are straight
It is poor in part, obtain Milling Machining half-finished parts；
Step 3, by the Milling Machining half-finished parts clamping obtained by step 2 on numerically control grinder, grinding leading edge (13) is carried out
With trailing edge (7), grinding half-finished parts are obtained；
Step 4, the grinding half-finished parts clamping obtained by step 3 is processed on turn-milling complex machining center,
It is machined with blade second end face (14), upper round platform (4), upper axis successively at the upper end of blade (6) on upper false boss (15)
Neck (3) and screw rod (1)；
It is machined with blade third end face (8), lower round platform (9) successively at the lower end of blade (6) on lower false boss (16)
With lower axle journal (11),
On blade (6) the first blade end face (5) is machined at upper false boss (15)；Close to lower work on blade (6)
Skill boss (16) goes out to be machined with the 4th blade end face (12)；
Wherein, the first blade end face (5) and third blade end face (8) are placed in trailing edge side, the second blade end face (14) and
Four blade end faces (12) are placed in leading edge side, meanwhile, it is machined on upper axle journal (3) and flat (2) is installed；Add on lower axle journal (10)
Work has guide groove (11), is finally completed the processing of engine rectification guide vane.
2. a kind of method of engine rectification guide vane processing according to claim 1, which is characterized in that in step 1,
Without allowance, leading edge (13) and trailing edge (7) are reserved with the surplus of 2~3mm for blade in finish forge half-finished parts.
3. a kind of method of engine rectification guide vane processing according to claim 1, which is characterized in that in step 2,
In processing, the machined parameters of CNC milling machine：Use the flat screw-on cutter, revolution 1200r/min, feeding of a diameter of 12mm
Amount is 300mm/min.
4. a kind of method of engine rectification guide vane processing according to claim 1, which is characterized in that in step 3,
In processing, the machined parameters of numerically control grinder：Sand-bed test is 12~20m/s, the amount of feeding is 800~1000mm/min.
5. a kind of method of engine rectification guide vane processing according to claim 1, which is characterized in that in step 4,
Specifically process is：
First, axle journal (3), upper round platform (4), blade second end face (14) and screw rod in Vehicle Processing on upper false boss (15)
(1)；
Then, close to the first blade of Milling Machining end face (5) at upper false boss (15) on blade (6), meanwhile, in upper axle journal
(3) Milling Machining installs flat (2) on；
Then, Vehicle Processing lower axle neck (10), lower round platform (9) and third blade end face (8) on lower false boss (16)；
Then, on blade (6) and close to the 4th blade end face (12) of Milling Machining at lower false boss (16), meanwhile, in lower axle
Milling Machining guide groove (11) on neck (10).
6. a kind of method of engine rectification guide vane processing according to claim 5, which is characterized in that in step 4,
In Vehicle Processing, technological parameter：When roughing, rotating speed 800r/min, the amount of feeding are 0.08~0.1mm/min, cutting is deep
Degree is 0.8mm；When finishing, rotating speed 1200r/min, the amount of feeding is 0.06~0.8mm/min, cutting depth 0.03mm；
When cutting thread, rotating speed 180r/min, cutting depth are 0.01~0.03mm.
7. a kind of method of engine rectification guide vane processing according to claim 5, which is characterized in that in step 4,
When Milling Machining installs flat (2), selectFlat screw-on cutter, technological parameter：Rotating speed is 1200r/min, the amount of feeding is
300mm/min；
At the first blade of Milling Machining end face (5), profile milling cutter, technological parameter are selected：Rotating speed is 1250r/min, the amount of feeding
For 270mm/min；
At the 4th blade end face (12) of Milling Machining, profile milling cutter, technological parameter are selected：Rotating speed is 1250r/min, the amount of feeding
For 270mm/min；
At Milling Machining guide groove (11), profile milling cutter, technological parameter are selected：Rotating speed is 2000r/min, the amount of feeding is
500mm/min。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227912A (en) * | 2019-06-19 | 2019-09-13 | 浙江三纵精密机械有限公司 | The production method of vane pump blade |
| CN111805187A (en) * | 2020-07-15 | 2020-10-23 | 哈尔滨汽轮机厂有限责任公司 | Processing method of assembly surface of dehumidifying blade |
| CN113369830A (en) * | 2021-06-30 | 2021-09-10 | 中国航发动力股份有限公司 | Machining method for forging low-pressure turbine blade |
| CN114458632A (en) * | 2020-11-09 | 2022-05-10 | 中国航发上海商用航空发动机制造有限责任公司 | Mechanical limiting structure for adjustable stator blade of gas compressor |
| CN116680840A (en) * | 2023-08-03 | 2023-09-01 | 中国航发四川燃气涡轮研究院 | Design method for structural strength of adjustable guide vane shaft neck and circular truncated cone of air compressor |
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| CN114458632A (en) * | 2020-11-09 | 2022-05-10 | 中国航发上海商用航空发动机制造有限责任公司 | Mechanical limiting structure for adjustable stator blade of gas compressor |
| CN113369830A (en) * | 2021-06-30 | 2021-09-10 | 中国航发动力股份有限公司 | Machining method for forging low-pressure turbine blade |
| CN116680840A (en) * | 2023-08-03 | 2023-09-01 | 中国航发四川燃气涡轮研究院 | Design method for structural strength of adjustable guide vane shaft neck and circular truncated cone of air compressor |
| CN116680840B (en) * | 2023-08-03 | 2023-10-03 | 中国航发四川燃气涡轮研究院 | Design method for structural strength of adjustable guide vane shaft neck and circular truncated cone of air compressor |
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