CN106625245A - Measurement method for grinding blade tip - Google Patents
Measurement method for grinding blade tip Download PDFInfo
- Publication number
- CN106625245A CN106625245A CN201710095137.3A CN201710095137A CN106625245A CN 106625245 A CN106625245 A CN 106625245A CN 201710095137 A CN201710095137 A CN 201710095137A CN 106625245 A CN106625245 A CN 106625245A
- Authority
- CN
- China
- Prior art keywords
- blade tip
- grinding
- blade
- removal amount
- length bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/06—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent requiring comparison of the workpiece with standard gauging plugs, rings or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
Abstract
The invention discloses a measurement method for grinding a blade tip. The measurement method for grinding the blade tip comprises the steps of step 1, measuring the initial height difference of the blade tip and a gauge bar; step 2, acquiring the final height difference of the grinded blade tip and the gauge bar through a formula; step 3, acquiring the grinding removal amount of the blade tip; and step 4, determining the feeding amount of an abrasive wheel according to the calculated grinding removal amount, when measuring the size of the blade tip each time after processing, judging whether the grinding removal amount and tolerance requirements of the blade tip are met or not, and if the removal amount and tolerance requirements of the blade tip are not met, adjusting the feeding amount of the abrasive wheel, and continuously processing the blade tip till the removal amount and tolerance requirements of the blade tip are met. The measurement method can be directly applied to the field of blade tip grinding of blades of aircraft engines, the defects that traditional locating is inaccurate, the processing precision is relatively low, and the processing cost is too high are overcome, the processing quality is greatly improved, the cost is reduced, and foundation is laid for guaranteeing performances of the engines, decreasing the oil consumption rate, and improving the reliability of the engines.
Description
Technical field
The present invention relates to blade of aviation engine Grinding Technology field, more particularly to a kind of survey for grinding blade tip
Amount method.
Background technology
To ensure aero-engine performance, reducing oil consumption rate, improve engine reliability, it is often necessary to the leaf to new blade
Point is ground to replace old blade.The dimension measurement method of wherein blade tip is the important means for ensureing blade processing precision.Pass
The gang tool grinding blade tip method of system only ensures machining accuracy by numerical control program, lacks accurate dimension measurement method, due to
The error of numerical control program presence itself, the elastic deformation existed between cutter and blade, cause to be assemblied in engine after blade tip grinding
On, final size is often overproof, it is impossible to meet use requirement.
Thus, it is desirable to have a kind of technical scheme come overcome or at least mitigate prior art at least one drawbacks described above.
The content of the invention
It is an object of the invention to provide it is a kind of for grinding the measuring method of blade tip overcoming or at least mitigate prior art
At least one drawbacks described above.
For achieving the above object, the present invention provides a kind of measuring method for grinding blade tip, the survey for grinding blade tip
Amount method is comprised the following steps：Step 1：Elemental height between measurement blade tip and length bar is poor；Step 2：It is ground by formula
Final difference in height between blade tip and length bar afterwards；Step 3：Obtain the grinding removal amount of blade tip；Step 4：Grinding according to calculating is gone
Except amount determines the emery wheel amount of feeding, and judge whether the grinding removal amount for meeting blade tip when one-shot measurement blade tip size is often processed
And tolerance, the emery wheel amount of feeding is adjusted if being unsatisfactory for and continues to process until the grinding removal amount and tolerance that reach blade tip will
Ask.
Preferably, the step 1 is measured by length bar, sine gauge, cushion block.
Preferably, the step 1 is specially：First blade A is installed on into tongue-and-groove seat, location-plate, connecting bolt, positioning spiral shell
On the positioner of bolt composition, then measurement blade, positioner are placed on the sine gauge of horizontal stand, will using cushion block
Sine gauge paves the angle theta of blade tip and horizontal direction, it is ensured that the blade tip level of measurement blade, while length bar is placed on into sine gauge
On；Then the elemental height difference L between the blade tip and length bar peak of blade is measured0。
Preferably, the formula in the step 2 is：
L=[Φ D1 ÷ 2- Φ D2 ÷ 2-L1+L2-Rctg (90 ° of-θ ÷ 2)-R+L3tg θ] cos θ；Wherein,
Φ D1 are known blade tip final diameter sizes, and Φ D2 are known blade tenon groove center diameters, and L1 is tongue-and-groove seat
The distance of upper surface and blade tenon groove center diameter, L2 is tongue-and-groove seat height dimension, R for length bar radius (i.e. Φ D ÷ 2), L3
For the length dimension of tongue-and-groove seat, θ is the angle of blade tip and horizontal direction in drawing.
Preferably, the grinding removal amount of the blade tip is L0-L；Wherein, L0It is poor for the elemental height between blade tip and length bar；L
For the final difference in height after grinding between blade tip and length bar.
The measuring method for grinding blade tip of the application is simple, reliability, versatility are high.The application may be directly applied to boat
The blade tip grinding field of empty engine blade, overcomes that traditional positioning is inaccurate, machining accuracy is relatively low, processing cost is too high not
Foot, substantially increases crudy, reduces cost, for guarantee engine performance, reduces oil consumption rate, improves engine reliable
Property is laid a good foundation.
Description of the drawings
Fig. 1 is the schematic flow sheet for grinding the measuring method of blade tip according to an embodiment of the invention.
Fig. 2 is the structural representation of the instrument that the measuring method for grinding blade tip shown in Fig. 1 is used.
Reference：
| 1 | Tongue-and-groove seat | 5 | Length bar |
| 2 | Location-plate | 6 | Sine gauge |
| 3 | Connecting bolt | 7 | Cushion block |
| 4 | Bolt | 8 | Horizontal stand |
Specific embodiment
To make purpose, technical scheme and the advantage of present invention enforcement clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from start to finish or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than the embodiment of whole.It is exemplary below with reference to the embodiment of Description of Drawings, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.Under
Face combines accompanying drawing and embodiments of the invention is described in detail.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " is based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of the description present invention and simplify description, rather than indicate or imply the dress of indication
Put or element with specific orientation, with specific azimuth configuration and operation, therefore it is not intended that must be protected to the present invention
The restriction of scope.
Fig. 1 is the schematic flow sheet for grinding the measuring method of blade tip according to an embodiment of the invention.Fig. 2 is Fig. 1 institutes
The structural representation of the instrument that the measuring method for grinding blade tip shown is used.
Measuring method for grinding blade tip as shown in Figure 1 is comprised the following steps：
Step 1：Elemental height between measurement blade tip and length bar is poor；
Step 2：Final difference in height after formula is ground between blade tip and length bar；
Step 3：Obtain the grinding removal amount of blade tip；
Step 4：Grinding removal amount according to calculating determines the emery wheel amount of feeding, and is often processing one-shot measurement blade tip size
When judge whether to meet the grinding removal amount of blade tip and tolerance, the emery wheel amount of feeding is adjusted if being unsatisfactory for and to continue processing straight
To the grinding removal amount and tolerance that reach blade tip.
The measuring method for grinding blade tip of the application is simple, reliability, versatility are high.The application may be directly applied to boat
The blade tip grinding field of empty engine blade, overcomes that traditional positioning is inaccurate, machining accuracy is relatively low, processing cost is too high not
Foot, substantially increases crudy, reduces cost, for guarantee engine performance, reduces oil consumption rate, improves engine reliable
Property is laid a good foundation.
In the present embodiment, step 1 is measured by length bar, sine gauge, cushion block.
Specifically, referring to Fig. 2, step 1 is specially：First measurement blade is installed on into tongue-and-groove seat, 1, location-plate 2, connection
On bolt 3, the positioner of the composition of bolt 4, then measurement blade, positioner are placed on the sine positioned at horizontal stand 8
On rule 6, sine gauge 6 is paved the angle theta of blade tip and horizontal direction using cushion block 7, it is ensured that the blade tip level of measurement blade, while
Length bar 5 is placed on sine gauge 6；Then the elemental height difference L between the blade tip and the peak of length bar 5 of blade is measured0。
In the present embodiment, the formula in step 2 is：
L=[Φ D1 ÷ 2- Φ D2 ÷ 2-L1+L2-Rctg (90 ° of-θ ÷ 2)-R+L3tg θ] cos θ；Wherein,
Φ D1 are known blade tip final diameter sizes, and Φ D2 are known blade tenon groove center diameters, and L1 is tongue-and-groove seat
The distance of upper surface and blade tenon groove center diameter, L2 is tongue-and-groove seat height dimension, R for length bar radius (i.e. Φ D ÷ 2), L3
For the length dimension of tongue-and-groove seat, θ is the angle of blade tip and horizontal direction in drawing.It is understood that above-mentioned Φ D1, Φ D2
Directly can be obtained by drawing.
In the present embodiment, the grinding removal amount of the blade tip is L0-L；Wherein, L0For the initial height between blade tip and length bar
Degree is poor；L is the final difference in height after grinding between blade tip and length bar.
It is last it is to be noted that：Above example only to illustrate technical scheme, rather than a limitation.To the greatest extent
Pipe has been described in detail with reference to the foregoing embodiments to the present invention, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or equivalent is carried out to which part technical characteristic and replaced
Change；And these modifications or replacement, do not make the essence of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution
God and scope.
Claims (5)
1. a kind of measuring method for grinding blade tip, it is characterised in that the measuring method for grinding blade tip includes following step
Suddenly：
Step 1：Elemental height between measurement blade tip and length bar is poor；
Step 2：Final difference in height after formula is ground between blade tip and length bar；
Step 3：Obtain the grinding removal amount of blade tip；
Step 4：Grinding removal amount according to calculating determines the emery wheel amount of feeding, and sentences when one-shot measurement blade tip size is often processed
The disconnected grinding removal amount and tolerance for whether meeting blade tip, the emery wheel amount of feeding is adjusted if being unsatisfactory for and continues processing until reaching
To the grinding removal amount and tolerance of blade tip.
2. it is used to as claimed in claim 1 grind the measuring method of blade tip, it is characterised in that the step 1 passes through length bar, sine
Rule, cushion block are measured.
3. it is used to as claimed in claim 2 grind the measuring method of blade tip, it is characterised in that the step 1 is specially：First will
Measurement blade is installed on tongue-and-groove seat (1), location-plate (2), connecting bolt (3), the positioner of bolt (4) composition, so
Measurement blade, positioner are placed on the sine gauge (6) of horizontal stand (8) afterwards, are padded in sine gauge (6) using cushion block (7)
The angle theta of blade tip and horizontal direction is played, it is ensured that the blade tip level of measurement blade, while length bar (5) is placed on sine gauge (6)；
Then the elemental height difference L between the blade tip and length bar (5) peak of blade is measured0。
4. the as claimed in claim 1 measuring method for being used to grind blade tip, it is characterised in that the formula in the step 2 is：
L=[Φ D1 ÷ 2- Φ D2 ÷ 2-L1+L2-Rctg (90 ° of-θ ÷ 2)-R+L3tg θ] cos θ；Wherein,
Φ D1 are known blade tip final diameter sizes, and Φ D2 are known blade tenon groove center diameters, and L1 is tongue-and-groove seat upper table
Face and the distance of blade tenon groove center diameter, L2 is tongue-and-groove seat height dimension, and R is the radius (i.e. Φ D ÷ 2) of length bar, and L3 is tenon
The length dimension of groove seat, θ is the angle of blade tip and horizontal direction in drawing.
5. the as claimed in claim 1 measuring method for being used to grind blade tip, it is characterised in that the grinding removal amount of the blade tip is
L0-L；Wherein, L0It is poor for the elemental height between blade tip and length bar；L is the final difference in height after grinding between blade tip and length bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095137.3A CN106625245A (en) | 2017-02-22 | 2017-02-22 | Measurement method for grinding blade tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095137.3A CN106625245A (en) | 2017-02-22 | 2017-02-22 | Measurement method for grinding blade tip |
Publications (1)
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| CN106625245A true CN106625245A (en) | 2017-05-10 |
Family
ID=58845869
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710095137.3A Pending CN106625245A (en) | 2017-02-22 | 2017-02-22 | Measurement method for grinding blade tip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509152A (en) * | 2019-07-31 | 2019-11-29 | 中国航发南方工业有限公司 | Turbo blade is vented side processing method |
Citations (5)
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|---|---|---|---|---|
| US4389785A (en) * | 1980-12-15 | 1983-06-28 | Goldsmith Wesley R | Sine-bar gage-blocks and direct reading micrometer adjustment |
| CN102248467A (en) * | 2011-06-16 | 2011-11-23 | 西北工业大学 | Numerical control polishing method for blade edge plate and blade transitional arc part |
| CN102275122A (en) * | 2011-09-01 | 2011-12-14 | 西北工业大学 | Numerical control polishing method for profile of blade of integrated blade disk |
| CN102818507A (en) * | 2011-06-07 | 2012-12-12 | 房增寿 | Angle size accurate measuring method of sine protractor |
| CN205799150U (en) * | 2016-06-22 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of positioner for grinding blade tip |
-
2017
- 2017-02-22 CN CN201710095137.3A patent/CN106625245A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389785A (en) * | 1980-12-15 | 1983-06-28 | Goldsmith Wesley R | Sine-bar gage-blocks and direct reading micrometer adjustment |
| CN102818507A (en) * | 2011-06-07 | 2012-12-12 | 房增寿 | Angle size accurate measuring method of sine protractor |
| CN102248467A (en) * | 2011-06-16 | 2011-11-23 | 西北工业大学 | Numerical control polishing method for blade edge plate and blade transitional arc part |
| CN102275122A (en) * | 2011-09-01 | 2011-12-14 | 西北工业大学 | Numerical control polishing method for profile of blade of integrated blade disk |
| CN205799150U (en) * | 2016-06-22 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of positioner for grinding blade tip |
Non-Patent Citations (1)
| Title |
|---|
| 张又昌等: "正弦规在斜面几何尺寸测量中的应用", 《航空工艺技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509152A (en) * | 2019-07-31 | 2019-11-29 | 中国航发南方工业有限公司 | Turbo blade is vented side processing method |
| CN110509152B (en) * | 2019-07-31 | 2020-10-13 | 中国航发南方工业有限公司 | Turbine blade exhaust edge processing method |
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