CN108044402A - A kind of tool length compensation method in blade profile precision milling - Google Patents
A kind of tool length compensation method in blade profile precision milling Download PDFInfo
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- CN108044402A CN108044402A CN201711188539.4A CN201711188539A CN108044402A CN 108044402 A CN108044402 A CN 108044402A CN 201711188539 A CN201711188539 A CN 201711188539A CN 108044402 A CN108044402 A CN 108044402A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/16—Compensation for wear of the tool
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Abstract
A kind of tool length compensation method in blade profile precision milling, it is characterised in that：Tool length compensation method in the blade profile precision milling, by the analysis for carrying out Surface inspection data by processing sequence to every group of tool sharpening blade, the variation for finding the section maximum gauge Cmax of representative feature section thickness and the correlation between different processing sequences, and it is determined as realizing that the thickness of every group of tool sharpening blade remains unchanged, it needs, when processing the blade of different order, to provide the different tool length offsets of same cutter.Advantages of the present invention：Within making the type face finish-milling machining profile surplus of high temperature alloy by 0.10mm range shorters to 0.03mm, type face finish-milling efficiency improves 20%, and separate unit cutter expense reduces by 50%, and technological achievement has been generalized to all turns, in the type face processing of stator blade.
Description
Technical field
The present invention relates to blade profile precision milling field, the cutter more particularly in a kind of blade profile precision milling
Length compensation method.
Background technology
By carrying out the analysis of Surface inspection data by processing sequence to every group of tool sharpening blade, find representative feature and cut
Variation and the correlation between different processing sequences of the section maximum gauge Cmax of face thickness, and be determined as realizing every group of knife
The thickness of tool processing blade is remained unchanged, it is necessary to when processing the blade of different order, provides the different cutters of same cutter
Length offset.As the high-pressure section of compressor, rotor and stator blade material are mostly high temperature alloy, to adapt to what is flowed through
The gas of high temperature and pressure, high-temperature alloy material have following processing characteristics：
(1) cutting force is larger, generally 1.5~2 times of working steel products；
(2) cutting temperature is high, and under the same conditions, cutting temperature is about 1.5~2 times of 45# steel；
(3) tool wear is serious, and mechanical wear, bonding abrasion, diffusive wear and oxidative wear are than more serious；
(4) processing hardening phenomenon is serious, and machined surface hardenability is up to 1.5~2 times of matrix hardness；Chip it is hard and
It is tough, it is not easily broken, causes chip processing in working angles difficult.
Exactly because high temperature alloy has such processing characteristics, the processing cutter for same rate of wear relatively processes other materials
Material such as stainless steel abrasion faster, directly translates into profile milling profile tolerance and is deteriorated rapidly, machining deformation increases therewith, so necessary
Process tool is replaced in time, this also results in the problem of processing efficiency is low and tool life is poor, these problems are to realize this kind
Material blade type face is accurate, high-efficient cutting engineeringization application must solve.
The content of the invention
The purpose of the present invention is in blade profile milling process, blade profile thickness is processed for every group of cutter of guarantee
Uniformity realizes this using the method for different tool length offsets corresponding to the blade of different processing sequences its same cutter
Target, so as to improve, the Milling Accuracy of blade profile is horizontal and quality stability, the reduction cost of charp tool have provided a kind of blade
Tool length compensation method in the precision milling of type face.
The present invention provides a kind of tool length compensation methods in blade profile precision milling, it is characterised in that：It is described
Blade profile precision milling in tool length compensation method, by every group of tool sharpening blade press processing sequence carry out type
Face detect data analysis, find representative feature section thickness section maximum gauge Cmax variation and different processing sequences it
Between correlation, and be determined as realizing that the thickness of every group of tool sharpening blade is remained unchanged, it is necessary in processing different order
During blade, the different tool length offsets of same cutter are provided.
Step 1: it determines to need the cutter for carrying out length compensation：First each section of finish-milling in deterministic type face processing cutter for same and
The position in line of demarcation, as shown in Figure 1, the processing program in blade type face is divided into 3 sections, the 1st, 2,3 section of finish-milling processing cutter for same point
Not Wei tri- kinds of Φ 3R1, Φ 8R1, Φ 5R2.5 cutters, boundary is respectively among II and III section, among Ⅸ and Ⅹ section, and
Using Φ 3R1, Φ 8R1, Φ 5R2.5 cutter compensations initial values as 0 processing blade.
Step 2: blade profile measurement, the maximum gauge deviation △ Cmax in each section are obtained：As shown in Fig. 2, it is sat using three
Co-ordinate measuring machine measures II, III, Ⅸ, Ⅹ 4 section, obtains the deviation △ Cmax of each section maximum gauge Cmax, and △ Cmax=
Cmax (actual measurement)-Cmax (theory), the maximum gauge deviation △ Cmax in 4 sections are respectively △ Cmax II, △ Cmax III, △
CmaxⅨ、△CmaxⅩ。
Step 3: analysis measurement data, the radius compensation value △ L of each cutter are obtained：The estimated section in 4 sections is maximum
The deviation △ Cmax of thickness Cmax are determined as 0.05mm, and the radius compensation value △ L of three kinds of cutters are denoted as △ L (3), △ L respectively
(8), △ L (5), then △ L (3)=△ Cmax- △ Cmax II, △ L (8)=△ Cmax- (III+△ Cmax Ⅸ of △ Cmax)/2, △ L
(5)=△ Cmax- △ Cmax Ⅹ.
Step 4: processing experiment is compensated for the first time：After the △ L of each cutter are determined for the first time, in control system
In the cutter table of SINMENS, Φ 3R1, Φ 8R1, Φ 5R2.5 cutters are corresponded to respectively, and tool length offset is inputted respectively as △ L
(3), △ L (8), △ L (5), algebraically numerical value, and complete new blade profile after Φ 3R1, Φ 8R1, Φ 5R2.5 are renewed knife
Finish-milling is processed.
Step 5: profile measurement again：The measurement in blade type face is carried out to the blade of the 1st compensation post-processing, is obtained each
The maximum gauge deviation △ Cmax in section；
Step 6: measurement data is analyzed：Obtain again 4 section maximum gauge deviation △ Cmax are denoted as △ respectively
CmaxⅡ(1)、△CmaxⅢ(1)、△CmaxⅨ(1)、△CmaxⅩ(1)
Step 7: first time definite tool length offset △ L are modified：Correction and Control system SINMENS knives
Have table in Φ 3R1, Φ 8R1, the tool length offset of Φ 5R2.5 cutters, new tool length offset be denoted as △ L (3) ',
△ L (8) ', △ L (5) ', then △ L (3) '=△ L (3)+△ Cmax II (1), △ L (8) '=△ L (8)+(△ Cmax III (1), △
Cmax Ⅸ (1))/2, △ L (5) '=△ L (5)+△ Cmax Ⅹ (1)；
Step 8: second of complementation test：According to the cutter length of newly revised Φ 3R1, Φ 8R1, Φ 5R2.5 cutters
Offset △ L (3) ', △ L (8) ', △ L (5) ' after the new knife of these three cutter changings, process the 2nd blade；
Step 9: obtain the tool length offset of every group of the 2nd, 3,4 ... part blade of tool sharpening：Every group of tool sharpening
The 2nd, 3,4 ... part blades tool length offset, step 2 can be repeated to step 8 to obtain.
Advantages of the present invention：
Tool length compensation method in blade profile precision milling of the present invention makes the type face finish-milling of high temperature alloy
Within machining profile surplus is by 0.10mm range shorters to 0.03mm, type face finish-milling efficiency improves 20%, separate unit cutter expense drop
Low 50%, and technological achievement has been generalized to all turns, in the processing of the type face of stator blade.
Description of the drawings
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail：
Fig. 1 is blade type face finish-milling each several part boundary schematic diagram；
Fig. 2 is blade profile section maximum gauge Cmax schematic diagrames.
Specific embodiment
Embodiment
The present invention provides a kind of tool length compensation methods in blade profile precision milling, it is characterised in that：It is described
Blade profile precision milling in tool length compensation method, by every group of tool sharpening blade press processing sequence carry out type
Face detect data analysis, find representative feature section thickness section maximum gauge Cmax variation and different processing sequences it
Between correlation, and be determined as realizing that the thickness of every group of tool sharpening blade is remained unchanged, it is necessary in processing different order
During blade, the different tool length offsets of same cutter are provided.
Step 1: it determines to need the cutter for carrying out length compensation：First each section of finish-milling in deterministic type face processing cutter for same and
The position in line of demarcation, as shown in Figure 1, the processing program in blade type face is divided into 3 sections, the 1st, 2,3 section of finish-milling processing cutter for same point
Not Wei tri- kinds of Φ 3R1, Φ 8R1, Φ 5R2.5 cutters, boundary is respectively among II and III section, among Ⅸ and Ⅹ section, and
Using Φ 3R1, Φ 8R1, Φ 5R2.5 cutter compensations initial values as 0 processing blade.
Step 2: blade profile measurement, the maximum gauge deviation △ Cmax in each section are obtained：As shown in Fig. 2, it is sat using three
Co-ordinate measuring machine measures II, III, Ⅸ, Ⅹ 4 section, obtains the deviation △ Cmax of each section maximum gauge Cmax, and △ Cmax=
Cmax (actual measurement)-Cmax (theory), the maximum gauge deviation △ Cmax in 4 sections are respectively △ Cmax II, △ Cmax III, △
CmaxⅨ、△CmaxⅩ。
Step 3: analysis measurement data, the radius compensation value △ L of each cutter are obtained：The estimated section in 4 sections is maximum
The deviation △ Cmax of thickness Cmax are determined as 0.05mm, and the radius compensation value △ L of three kinds of cutters are denoted as △ L (3), △ L respectively
(8), △ L (5), then △ L (3)=△ Cmax- △ Cmax II, △ L (8)=△ Cmax- (III+△ Cmax Ⅸ of △ Cmax)/2, △ L
(5)=△ Cmax- △ Cmax Ⅹ.
Step 4: processing experiment is compensated for the first time：After the △ L of each cutter are determined for the first time, in control system
In the cutter table of SINMENS, Φ 3R1, Φ 8R1, Φ 5R2.5 cutters are corresponded to respectively, and tool length offset is inputted respectively as △ L
(3), △ L (8), △ L (5), algebraically numerical value, and complete new blade profile after Φ 3R1, Φ 8R1, Φ 5R2.5 are renewed knife
Finish-milling is processed.
Step 5: profile measurement again：The measurement in blade type face is carried out to the blade of the 1st compensation post-processing, is obtained each
The maximum gauge deviation △ Cmax in section；
Step 6: measurement data is analyzed：Obtain again 4 section maximum gauge deviation △ Cmax are denoted as △ respectively
CmaxⅡ(1)、△CmaxⅢ(1)、△CmaxⅨ(1)、△CmaxⅩ(1)
Step 7: first time definite tool length offset △ L are modified：Correction and Control system SINMENS knives
Have table in Φ 3R1, Φ 8R1, the tool length offset of Φ 5R2.5 cutters, new tool length offset be denoted as △ L (3) ',
△ L (8) ', △ L (5) ', then △ L (3) '=△ L (3)+△ Cmax II (1), △ L (8) '=△ L (8)+(△ Cmax III (1), △
Cmax Ⅸ (1))/2, △ L (5) '=△ L (5)+△ Cmax Ⅹ (1)；
Step 8: second of complementation test：According to the cutter length of newly revised Φ 3R1, Φ 8R1, Φ 5R2.5 cutters
Offset △ L (3) ', △ L (8) ', △ L (5) ' after the new knife of these three cutter changings, process the 2nd blade；
Step 9: obtain the tool length offset of every group of the 2nd, 3,4 ... part blade of tool sharpening：Every group of tool sharpening
The 2nd, 3,4 ... part blades tool length offset, step 2 can be repeated to step 8 to obtain.
Claims (3)
1. a kind of tool length compensation method in blade profile precision milling, it is characterised in that：The blade profile is accurate
Tool length compensation method in milling is divided by carrying out Surface inspection data by processing sequence to every group of tool sharpening blade
Analysis, the variation for finding the section maximum gauge Cmax of representative feature section thickness and the correlation between different processing sequences,
And it is determined as realizing that the thickness of every group of tool sharpening blade is remained unchanged, it is necessary to when processing the blade of different order, it provides same
A kind of different tool length offsets of cutter.
2. the tool length compensation method in blade profile precision milling described in accordance with the claim 1, it is characterised in that：
Step 1: it determines to need the cutter for carrying out length compensation：Each section of deterministic type face finish-milling processing cutter for same and boundary first
The position of line, the processing program in blade type face are divided into 3 sections, and the 1st, 2,3 section of finish-milling processing cutter for same is respectively Φ 3R1, Φ
Tri- kinds of 8R1, Φ 5R2.5 cutters, boundary are respectively among II and III section, among Ⅸ and Ⅹ section, and with Φ 3R1, Φ
8R1, Φ 5R2.5 cutter compensations initial value are 0 processing blade.
Step 2: blade profile measurement, the maximum gauge deviation △ Cmax in each section are obtained：Using three coordinate measuring engine measurement
IIth, III, Ⅸ, Ⅹ 4 section, obtains the deviation △ Cmax of each section maximum gauge Cmax, and △ Cmax=Cmax (actual measurement)-
Cmax (theory), the maximum gauge deviation △ Cmax in 4 sections are respectively △ Cmax II, △ Cmax III, △ Cmax Ⅸ, △ Cmax
Ⅹ。
Step 3: analysis measurement data, the radius compensation value △ L of each cutter are obtained：By the estimated section maximum gauge in 4 sections
The deviation △ Cmax of Cmax are determined as 0.05mm, and the radius compensation value △ L of three kinds of cutters are denoted as △ L (3), △ L (8), △ L respectively
(5), then △ L (3)=△ Cmax- △ Cmax II, △ L (8)=△ Cmax- (III+△ Cmax Ⅸ of △ Cmax)/2, △ L (5)=△
Cmax-△CmaxⅩ。
3. the tool length compensation method in blade profile precision milling described in accordance with the claim 2, it is characterised in that：Step
Rapid four, processing experiment is compensated for the first time：After the △ L of each cutter are determined for the first time, in the cutter table of control system SINMENS
In, Φ 3R1, Φ 8R1, Φ 5R2.5 cutters are corresponded to respectively, and tool length offset is inputted respectively as △ L (3), △ L (8), △ L
(5), algebraically numerical value, and complete new blade profile finish-milling processing after Φ 3R1, Φ 8R1, Φ 5R2.5 are renewed knife.
Step 5: profile measurement again：The measurement in blade type face is carried out to the blade of the 1st compensation post-processing, obtains each section
Maximum gauge deviation △ Cmax；
Step 6: measurement data is analyzed：Obtain again 4 section maximum gauge deviation △ Cmax are denoted as △ Cmax II respectively
(1)、△CmaxⅢ(1)、△CmaxⅨ(1)、△CmaxⅩ(1)
Step 7: first time definite tool length offset △ L are modified：Correction and Control system SINMENS cutter tables
Middle Φ 3R1, Φ 8R1, the tool length offset of Φ 5R2.5 cutters, new tool length offset are denoted as △ L (3) ', △ L
(8) ', △ L (5) ', then △ L (3) '=△ L (3)+△ Cmax II (1), △ L (8) '=△ L (8)+(△ Cmax III (1), △
Cmax Ⅸ (1))/2, △ L (5) '=△ L (5)+△ Cmax Ⅹ (1)；
Step 8: second of complementation test：According to the tool length compensation of newly revised Φ 3R1, Φ 8R1, Φ 5R2.5 cutters
Value △ L (3) ', △ L (8) ', △ L (5) ' after the new knife of these three cutter changings, process the 2nd blade；
Step 9: obtain the tool length offset of every group of the 2nd, 3,4 ... part blade of tool sharpening：The of every group of tool sharpening
2nd, the tool length offset of 3,4 ... part blades can repeat step 2 to step 8 to obtain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711188539.4A CN108044402A (en) | 2017-11-24 | 2017-11-24 | A kind of tool length compensation method in blade profile precision milling |
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| CN201711188539.4A CN108044402A (en) | 2017-11-24 | 2017-11-24 | A kind of tool length compensation method in blade profile precision milling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664264A (en) * | 2021-08-27 | 2021-11-19 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for reducing milling deformation of blade |
| CN116160291A (en) * | 2023-04-24 | 2023-05-26 | 沈阳强航时代精密科技有限公司 | Blade profile machining cutter length compensation method based on-machine measurement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB783144A (en) * | 1955-08-19 | 1957-09-18 | Seneca Falls Machine Co | Improvements in tool adjustment and replacement mechanism for automatic lathes and like machine tools |
| JPS58160046A (en) * | 1982-03-18 | 1983-09-22 | Shinwa Syst Denshi:Kk | Automatically compensating method of wear of cutting tool and the like and device thereof |
| CN105269398A (en) * | 2015-05-05 | 2016-01-27 | 沈阳理工大学 | Orthogonal turning and milling method for inner rotary surface |
| CN106514147A (en) * | 2016-11-23 | 2017-03-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Precise machining method for molded surfaces of high-temperature alloy compressor blades |
-
2017
- 2017-11-24 CN CN201711188539.4A patent/CN108044402A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB783144A (en) * | 1955-08-19 | 1957-09-18 | Seneca Falls Machine Co | Improvements in tool adjustment and replacement mechanism for automatic lathes and like machine tools |
| JPS58160046A (en) * | 1982-03-18 | 1983-09-22 | Shinwa Syst Denshi:Kk | Automatically compensating method of wear of cutting tool and the like and device thereof |
| CN105269398A (en) * | 2015-05-05 | 2016-01-27 | 沈阳理工大学 | Orthogonal turning and milling method for inner rotary surface |
| CN106514147A (en) * | 2016-11-23 | 2017-03-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Precise machining method for molded surfaces of high-temperature alloy compressor blades |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664264A (en) * | 2021-08-27 | 2021-11-19 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for reducing milling deformation of blade |
| CN116160291A (en) * | 2023-04-24 | 2023-05-26 | 沈阳强航时代精密科技有限公司 | Blade profile machining cutter length compensation method based on-machine measurement |
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Application publication date: 20180518 |