CN106247886B - A kind of detection method for large-scale fan integrated impeller blade - Google Patents
A kind of detection method for large-scale fan integrated impeller blade Download PDFInfo
- Publication number
- CN106247886B CN106247886B CN201610748895.6A CN201610748895A CN106247886B CN 106247886 B CN106247886 B CN 106247886B CN 201610748895 A CN201610748895 A CN 201610748895A CN 106247886 B CN106247886 B CN 106247886B
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- blade
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- measurement
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
- G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
Abstract
A kind of detection method for large-scale fan integrated impeller blade, detection device include plate, and plate is fixed on the bracket that inclination angle can adjust, and plate center, which is equipped with to match with the centre bore of integral blade disk, merges the idler wheel that can make integral blade disk rotation；Bracket includes bottom plate, it is in rectangular layout on bottom plate to have four square steel, it is supported with two crossbeams side by side by square steel, flat plate bottom is symmetrically connected with two pieces of supporting plates, arc chute is offered on two pieces of supporting plates, wherein a crossbeam is movably connected in the center point of two pieces of supporting plate arc chutes, and another crossbeam passes through two arc chutes and can be slided along arc chute.Detection method is by tilting integral blade disk, and for wide chord length, accurate, the efficient detection of the large complicated fan integrated impeller blade such as deep camber blade profile provide a kind of measurement approach, and the present invention is also applied for the measurement of enclosed entirety leaf joint simultaneously, economical and practical.
Description
Technical field
The invention belongs to be machined detection field, and in particular to a kind of detection for large-scale fan integrated impeller blade
Method is met in the insufficient situation of three coordinate measuring machine Z-direction range by once positioning, and realizes large-scale fan entirety leaf
The complete measurement of disk blade.
Background technique
Integral blade disk is integrally machined by blade and compressor disc, and each leaf dish is evenly distributed with tens blades, between blade
Spacing it is narrow, and the leaf length of large-scale fan integrated impeller blade, chord length is wide, so that blade profile of integrated bladed disk detection difficulty
It is larger.Usually using three coordinate measuring machine when measuring integrated impeller blade, it is perpendicular for leaf dish axis that generally there are two types of installation way
Straight clamping and leaf dish axis horizontal clamping, but all existing defects when measuring large-scale fan integral blade disk.
(1) leaf dish axis vertical clamping there are the problem of:
Leaf dish axis vertical clamping, i.e. leaf dish axis are vertical with three-dimensional coordinates measurement machine platform, and this installation way passes through one
Secondary clamping is unable to the entire blade profile of complete measurement, needs " turning over " in measurement process, i.e., first by the leading edge of impeller blade upward
It places, after completing all blade profile numerical value that can be measured, then the exhaust side of impeller blade is placed upward, completing residue does not have
The blade profile of measurement measurement data will carry out " splicing " twice, then analyze each parameter of blade profile, and the process to turn over has the following problems:
1) measurement accuracy problem: when measuring for the first time, coordinate system is established using the datum level of drawings marked, after " turning over ", again
Coordinate system is established, the benchmark that coordinate system uses twice is not same measurement element, Reference Transforming is needed, in Reference Transforming process
In, there can be error；The blade profile in same section is Measured data connection twice before and after " turning over ", twice measurement data
Blade profile height has differences, and directly affects the accuracy of evaluation.2) efficiency is evaluated: due to the blade profile number in same section
According to being measured under the same coordinate system, three coordinate measuring machine software cannot be automatically generated needed for blade dedicated analysis software
The fixed format wanted is repaired after needing to export the measurement data in each section according to primary data sequence and format manually
Change, evaluation efficiency is lower.
(2) the parallel clamping of leaf dish axis there are the problem of:
The parallel clamping of leaf dish axis, i.e. leaf dish axis and three coordinate measuring machine platform parallel, this installation way is will be whole
Body leaf dish is fixed on three-coordinate measuring machine-tool, and there are enough detection spaces, this clampings vertically by certain device
Mode needs diameter of the three coordinate measuring machine Z axis range greater than integral blade disk, but at present for large-scale fan integral blade disk
Maximum outside diameter is typically greater than three coordinate measuring machine Z axis range.
Summary of the invention
It is an object of the invention to be directed to above-mentioned problems of the prior art, provide a kind of whole for large-scale fan
The detection method of impeller blade, without carrying out " turning over " detection, and can be insufficient in three coordinate measuring machine Z-direction range
In the case of realize integral blade disk blade profile complete measurement, detect precise and high efficiency.
To achieve the goals above, the present invention is used for the technical side that the detection device of large-scale fan integrated impeller blade uses
Case are as follows:
Including the plate for installing integral blade disk, plate is fixed on the bracket component that inclination angle can adjust, plate
Center is equipped with the idler wheel that own rotation is matched and be capable of with integral blade disk centre bore；The bracket component includes bottom plate,
It is in rectangular layout on bottom plate to have four square steel, it is supported with two crossbeams side by side by four square steel, the both ends of crossbeam are welded with two
A side baffle, side baffle are fitted with the locating shaft for rotation and offer the pin hole and spiral shell for determining plate gradient
Pit；The bottom symmetrical of plate is connected with two pieces of supporting plates, offers arc-shaped sliding slot on two pieces of supporting plates.
Two pieces of supporting plates include offering the first supporting plate of multiple dowel holes and sliding slot and only offering sliding slot
Second supporting plate.
The crossbeam both ends are parallel with supporting plate respectively to be fixed with the first side baffle and the second side baffle, on the first supporting plate
There is the bolt for connecting the first side baffle and the first supporting plate by chain sling system.
16 uniformly distributed dowel holes are uniformly provided on first supporting plate, the indexing between dowel hole is 5 °.
Triangle gusset is provided between the crossbeam and square steel and between bottom plate and square steel.
The plate is circle, and two pieces of supporting plates are quadrant arc.
The present invention is used for the technical solution that the detection method of large-scale fan integrated impeller blade uses, comprising the following steps:
The following steps are included:
Step 1: it will test device and be fixed on three-dimensional coordinates measurement machine platform；
Step 2: tilt plate by rotating two pieces of supporting plates simultaneously；
Step 3: the sliding slot of two pieces of supporting plates is each passed through with bolt and the threaded hole on two side baffles is tightened, by two pieces
Supporting plate and the bracket component of detection device are fixed；
Step 4: the centre bore of integral blade disk is sleeved on idler wheel, and integral blade disk bottom is bonded with Rotating Plates；
Step 5: first blade to be measured is rotated to the surface of leaf dish centre bore axis by rotation integral blade disk,
The gauge head angle for adjusting three coordinate measuring machine probes into scanning blade and blade from blade air inlet side-aisle and exhaust side-aisle respectively
Type；
Step 6: after detection is completed in the detection of first blade, rotation integral blade disk rotates to second measurement blade
Vane foil is scanned using same step 5 the method in the position of first measurement blade, and so on, it is vaned to complete institute
Detection.
The vane foil keeps the starting point of each Scanning Section, direction point, terminating point direction consistent in scanning, each
The molded line that blade profile Scanning Section is combined into is unified.
For the vane foil in scanning, latter Blade measuring coordinate system is on the basis of previous Blade measuring coordinate system
On, the reference axis of blade stacking axis direction rotates angle V, wherein V=(360/N) * (V1-1), and V1 is the blade sequence of measurement in formula
Number, N is the total leaf number of integral blade disk.
Height of the integral blade disk in three coordinate measuring machine is adjusted to integrated impeller blade maximum outside diameter/cos
(three coordinate measuring machine gauge head length+three coordinate measuring machine stylus is long for (α) < three coordinate measuring machine Z-direction maximum measurement height-
Degree), the α in formula is the inclination angle of integral blade disk；
Two pieces of supporting plates include offering first supporting plate of 16 uniformly distributed dowel holes and sliding slot and only offering
Second supporting plate of sliding slot, the indexing between dowel hole are 5 °, and the crossbeam both ends are parallel with supporting plate respectively to be fixed with first
Side baffle and the second side baffle are the bolt having for connecting the first side baffle and the first supporting plate on the first supporting plate；When α=0 °
When, the 1st dowel hole of the first supporting plate is fixed with the first side baffle by bolt, plate and platform parallel, integral blade disk
It is measured blade and is in extreme lower position in measuring machine；When α=90 °, by bolt by the 16th positioning pin of the first supporting plate
Hole is fixed with the first side baffle, and plate is vertical with platform, and integral blade disk is measured blade and is in extreme higher position in measuring machine.
Compared with prior art, the present invention is avoided with following the utility model has the advantages that by tilting integral blade disk
Due to the benchmark difference bring measurement error that coordinate system uses twice, detection efficiency is lower and two for traditional " turning over " detection
Secondary measurement data during " splicing " caused by data processing error, while present invention addresses three coordinate measuring machine ranges
Inadequate problem, for wide chord length, accurate, the efficient detection of the large complicated fan integrated impeller blade such as deep camber blade profile are provided
A kind of measuring device and method, the present invention is also applied for the measurement of enclosed entirety leaf joint simultaneously, economical and practical.
Detailed description of the invention
The integrally-built schematic front view of Fig. 1 detection device of the present invention；
The integrally-built right side view of Fig. 2 detection device of the present invention；
The integrally-built local overlooking schematic diagram of Fig. 3 detection device of the present invention；
The general structure schematic diagram of Fig. 4 detection device bracket of the present invention:
4-a is the main view of bracket, and 4-b is the right view of 4-a, and 4-c is the top view of 4-a；
The structural schematic diagram of Fig. 5 the first supporting plate of detection device of the present invention；
The structural schematic diagram of Fig. 6 the second supporting plate of detection device of the present invention；
The structural schematic diagram of Fig. 7 detection device plate of the present invention；
In figure: 1- bottom plate, 2- gusset, the first side baffle of 3-, the second side baffle of 4-, 5- square steel, 6- bolt, 7- first
Plate, the first screw of 8-, 9- idler wheel, the second screw of 10-, the second supporting plate of 11-, 12- plate.
Specific embodiment
Invention is described in further detail with reference to the accompanying drawing.
Referring to Fig. 1-7, the detection device of integrated impeller blade of the present invention includes bottom plate 1, gusset 2, the first side in structure
Baffle 3, the second side baffle 4, square steel 5, bolt 6, the first supporting plate 7, the first screw 8, idler wheel 9, the second screw 10, the second supporting plate 11
And plate 12.Bottom plate 1, gusset 2, the first side baffle 3, the second side baffle 4, square steel 5 are welded as bracket.Plate 12, square steel 5,
2, two supporting plates of gusset, two side baffles size by the range and fan leaf dish size of three coordinate measuring machine depending on.Bolt 6 is used
Chain sling ties up on square steel 5, connects the first side baffle 3 and the first supporting plate 7.Idler wheel 9 altogether there are three, angle be respectively 60 °, 150 ° and
150 °, the center of plate 12 is fixed on the second screw 10, idler wheel 9 can rotate freely.Second supporting plate 11 and first of the invention
The straight flange end of supporting plate 7 and second screw 10 fixation of plate 3, two supporting plates one end with threaded hole with the first screw 8 with it is corresponding
The second side baffle 4, the first side baffle 3 it is fixed.There are 16 uniformly distributed dowel holes, 16 uniformly distributed positioning on first supporting plate 7
Pin hole is on same pitch circle, and the pitch circle center of circle, on the center of the first screw 8, the indexing between dowel hole is 5 °.Second
There is a groove on plate 11, which is 1/4 circular arc, positional symmetry identical as the pitch radius on the first supporting plate 7, recess width
It is identical as the bore dia on the first supporting plate.
The present invention is used for the detection method of large-scale fan integrated impeller blade are as follows:
1, the detection device of integrated impeller blade is fixed on to the suitable position of three-dimensional coordinates measurement machine platform with pressing plate and screw
It sets；
2, tilt plate 12 by rotating the first supporting plate 7 and the second supporting plate 11 simultaneously；
3, by the equal cloth hole of the first supporting plate 7,12 inclined angle alpha of plate is adjusted, with bolt 6 by the first supporting plate 7 and the first side
Baffle 3 is fixed, primarily determines the position of plate 12；
4, the sliding slot and the first side baffle 3 and the second side baffle 4 of the first supporting plate 7 and the second supporting plate 11 are each passed through with bolt
On threaded hole tighten, the first supporting plate 7, the second supporting plate 11 are fixed again with bracket component.
5, the centre bore of integral blade disk is sleeved on plate idler wheel 9, integral blade disk bottom is bonded with plate 12, is rotated whole
First blade of measurement is rotated to the surface of integral blade disk centre bore axis by body leaf dish.
6, the measurement coordinate system of first blade in suitable gauge head angle establishment integral blade disk is utilized according to drawing requirement
And blade profile detects program.Blade profile detection path setting in process of measurement are as follows: using suitable three coordinate measuring machine gauge head angle point
Do not probe into scanning vane foil from blade air inlet side-aisle and exhaust side-aisle, the starting point of every section of Scanning Section, direction point,
Terminating point direction should be consistent, i.e., the molded line that each blade profile Scanning Section is combined into should be unified direction.
Process of measurement is called to complete the detection of first blade, rotation leaf dish makes second measurement blade rotate to first
The position for measuring blade, calls the process of measurement of first blade to measure second blade, and so on.
When measuring different leaves, on the basis of first Blade measuring coordinate system, the reference axis of blade stacking axis direction
Angle V, V=(360/N) * (V1-1) are rotated, the V1 in formula be the blade serial number of measurement, for example measurement blade is the in leaf dish the 5th
The value of a blade V1 is the total leaf number that 5, N is integral blade disk.Process of measurement automatically generates required for blade dedicated analysis software
Fixed format, and import data in blade dedicated analysis software progress each Parameter analysis of blade profile.
The present invention solves " turning over " detection benchmark difference bring measurement error that coordinate system uses twice, and twice
Measurement data during " splicing " caused by data processing error and efficiency, and pass through the tune of measurement bracket upper angle
It is whole, solve the problems, such as that three coordinate measuring machine range is inadequate.The present invention is wide chord length, and the large complicated fan of deep camber blade profile is whole
Accurate, the efficient detection of body impeller blade provide a kind of measurement method, and this method is also applied for the measurement of enclosed entirety leaf joint.
Claims (4)
1. a kind of detection method for large-scale fan integrated impeller blade, which comprises the following steps:
Step 1: it will test device and be fixed on three-dimensional coordinates measurement machine platform；Detection device includes for installing integral blade disk
Plate (12), plate (12) are fixed on the bracket component that inclination angle can adjust, and the center of plate (12) is equipped with and integral blade disk
Centre bore matches and is capable of the idler wheel (9) of own rotation；The bracket component includes bottom plate (1), is in square on bottom plate (1)
Shape is disposed with four square steel (5), is supported with two crossbeams side by side by four square steel (5), the both ends of crossbeam are welded with two sides
Baffle, side baffle are fitted with the locating shaft for rotation and offer the pin hole and spiral shell for determining plate (12) gradient
Pit；The bottom symmetrical of plate is connected with two pieces of supporting plates, offers arc-shaped sliding slot on two pieces of supporting plates；
Step 2: tilt plate (12) by rotating two pieces of supporting plates simultaneously；
Step 3: the sliding slot of two pieces of supporting plates is each passed through with bolt and the threaded hole on two side baffles is tightened, by two pieces of supporting plates
It is fixed with the bracket component of detection device；
Step 4: the centre bore of integral blade disk is sleeved on idler wheel (9), integral blade disk bottom is bonded with Rotating Plates (12)；
Step 5: first blade to be measured is rotated to the surface of leaf dish centre bore axis, adjusted by rotation integral blade disk
The gauge head angle of three coordinate measuring machine probes into scanning vane foil from blade air inlet side-aisle and exhaust side-aisle respectively；
Step 6: after detection is completed in the detection of first blade, rotation integral blade disk makes second measurement blade rotate to first
The position of a measurement blade, scans vane foil using same step 5 the method, and so on, complete the vaned inspection of institute
It surveys.
2. detection method according to claim 1, it is characterised in that: the vane foil makes each scanning in scanning
The starting point of section, direction point, terminating point direction are consistent, and the molded line that each blade profile Scanning Section is combined into is unified.
3. detection method according to claim 1 or 2, it is characterised in that: the vane foil is in scanning, latter leaf
Piece measures coordinate system on the basis of previous Blade measuring coordinate system, and the reference axis of blade stacking axis direction rotates angle V, wherein
V=(360/N) * (V1-1), V1 is the blade serial number of measurement in formula, and N is the total leaf number of integral blade disk.
4. detection method according to claim 1, which is characterized in that the integral blade disk is in three coordinate measuring machine
Height is adjusted to: integrated impeller blade maximum outside diameter/cos (α) < (three sit three coordinate measuring machine Z-direction maximum measurement height-
Co-ordinate measuring machine gauge head length+three coordinate measuring machine stylus length), the α in formula is the inclination angle of integral blade disk；
Two pieces of supporting plates include offering first supporting plate (7) of 16 uniformly distributed dowel holes and sliding slot and only offering cunning
The second supporting plate (11) of slot, the indexing between dowel hole are 5 °, and the crossbeam both ends are parallel with supporting plate respectively to be fixed with the
One side baffle (3) and the second side baffle (4) are to have for connecting the first side baffle (3) and the first supporting plate on the first supporting plate (7)
(7) bolt (6)；When α=0 °, by bolt (6) by the 1st dowel hole and the first side baffle (3) of the first supporting plate (7)
Fixed, plate (12) and platform parallel, integral blade disk are measured blade and are in extreme lower position in measuring machine；When α=90 °,
By bolt (6) that the 16th dowel hole and the first side baffle (3) of the first supporting plate (7) is fixed, plate (12) and platform hang down
Directly, integral blade disk is measured blade and is in extreme higher position in measuring machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748895.6A CN106247886B (en) | 2016-08-26 | 2016-08-26 | A kind of detection method for large-scale fan integrated impeller blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748895.6A CN106247886B (en) | 2016-08-26 | 2016-08-26 | A kind of detection method for large-scale fan integrated impeller blade |
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| CN106247886A CN106247886A (en) | 2016-12-21 |
| CN106247886B true CN106247886B (en) | 2019-03-22 |
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| CN201610748895.6A Active CN106247886B (en) | 2016-08-26 | 2016-08-26 | A kind of detection method for large-scale fan integrated impeller blade |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672299A (en) * | 2019-11-07 | 2020-01-10 | 中国航空工业集团公司哈尔滨空气动力研究所 | Blade angle measuring and adjusting device based on ducted tail rotor wind tunnel test |
| CN117169342B (en) * | 2023-11-03 | 2024-01-09 | 中国航发沈阳黎明航空发动机有限责任公司 | A fixed frock for blisk blade root ultrasonic detection |
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| CN203495579U (en) * | 2013-06-26 | 2014-03-26 | 王炜 | Indexing fixture special for worm wheel blade wire cutting |
| CN103769653A (en) * | 2012-10-24 | 2014-05-07 | 西安志越机电科技有限公司 | Inclined hole drilling clamp with adjustable angle |
| CN105397151A (en) * | 2015-11-19 | 2016-03-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Real-time digital display drilling device and method |
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- 2016-08-26 CN CN201610748895.6A patent/CN106247886B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201715991U (en) * | 2010-01-23 | 2011-01-19 | 浙江吉利汽车有限公司 | Angle-adjustable tool |
| CN201913633U (en) * | 2010-12-03 | 2011-08-03 | 青岛宙庆工业设计有限公司 | Rotating worktable for processing automobiles |
| CN103769653A (en) * | 2012-10-24 | 2014-05-07 | 西安志越机电科技有限公司 | Inclined hole drilling clamp with adjustable angle |
| CN102944206A (en) * | 2012-11-29 | 2013-02-27 | 江苏省计量科学研究院 | Step positioning method for three-coordinate measurement of integral impeller |
| CN103240718A (en) * | 2013-05-08 | 2013-08-14 | 广西大学 | Inclined adjustable worktable with synchronous loading and unloading function |
| CN203495579U (en) * | 2013-06-26 | 2014-03-26 | 王炜 | Indexing fixture special for worm wheel blade wire cutting |
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| CN106247886A (en) | 2016-12-21 |
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Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO., LTD. Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE CORPORATION PLC |
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