CN109357590A - A kind of the detection positioning device and measurement method of blade tip height - Google Patents
A kind of the detection positioning device and measurement method of blade tip height Download PDFInfo
- Publication number
- CN109357590A CN109357590A CN201811355727.6A CN201811355727A CN109357590A CN 109357590 A CN109357590 A CN 109357590A CN 201811355727 A CN201811355727 A CN 201811355727A CN 109357590 A CN109357590 A CN 109357590A
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- Prior art keywords
- block
- blade
- blade tip
- gauge
- tip height
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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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a kind of detection positioning device of blade tip height and measurement methods, pass through setting bottom plate and the locating piece being fixed on bottom plate, support frame, tooth form gripping block, tooth shape locating block and survey gauge package；Tooth form gripping block is fixed on tooth shape locating block side by clamping component, and tooth form gripping block and tooth shape locating block are blade rest area to be measured；Support frame upper end, which is equipped with, surveys gauge package mounting hole, surveys gauge package and is fixed in survey gauge package mounting hole；Locating piece is fixed on tooth form gripping block and tooth shape locating block side, it is positioned using locating piece to by blade to be measured, it is close to blade along tooth shape locating block, blade is clamped with tooth form gripping block, after being calibrated to survey gauge package, it is directly measured using survey gauge package and obtains the actual value of blade tip, the present apparatus solves laser melting coating and repairs rear blade blade tip height and creep compliance detection problem, improve checkability, present apparatus structure is built greatly, easy to operate, it is high that positioning clamping detects reliability agility.
Description
Technical field
The present invention relates to a kind of detection positioning device of blade tip height and measurement methods, belong to cladding and repair rear blade
Detection field.
Background technique
Increases material manufacturing technology belongs to the cutting edge technology of manufacturing, with the development of increases material manufacturing technology, has opened up aviation
Engine components repair frontier.Turbo blade is engineered the research of laser gain material recovery technique, and impaired blade tip position is passed through
After crossing roughing, possessed flexibility is manufactured using laser gain material, deposition is carried out by the leaf geometry of blade and resiles,
And through subsequent a small amount of machining, needs further exist for related profile characteristics and blade tip height carries out accurate detection after repairing,
To determine whether to reach design requirement.
State is inconsistent after being repaired after use of installing and to damage location due to blade, before detection method is different from
The detection of phase normal process blade.After increases material manufacturing technology reblading, carry out grinding for detection technique in this respect for the first time
Study carefully, for the detection of reparation rear blade, there are no mature experiences to use for reference at present, needs to measure research, repairs front and back leaf
The blade tip height change and the method for inspection of piece need further perfect.
Summary of the invention
The purpose of the present invention is to provide a kind of detection positioning device of blade tip height and measurement methods, existing to overcome
There is the deficiency of technology.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of detection positioning device of blade tip height, including bottom plate and the locating piece being fixed on bottom plate, support
Frame, tooth form gripping block, tooth shape locating block and survey gauge package；Tooth shape locating block is fixed on bottom plate, and tooth form gripping block passes through folder
Tight component is fixed on tooth shape locating block side, and tooth form gripping block and tooth shape locating block are blade rest area to be measured；Support frame upper end
Equipped with gauge package mounting hole is surveyed, surveys gauge package and be fixed in survey gauge package mounting hole, survey gauge package and be located at leaf to be measured
Piece rest area upper end；Locating piece is fixed on tooth form gripping block and tooth shape locating block side, places for positioning to blade to be measured.
Further, surveying gauge package includes dial gauge, dial gauge grip slipper and dial framework, and dial framework is placed in the measurement of support frame
In table component mounting hole, measuring staff and measuring staff sleeve are equipped in dial framework hollow structure, measuring staff is nested in measuring staff sleeve, and dial gauge is set
In in dial gauge grip slipper, dial gauge grip slipper is connected through a screw thread with dial framework；It is equipped with drive rod in dial framework, is arranged on drive rod
Have tension spring, tension spring one end is fixed with dial framework, and the other end is fixedly connected with measuring staff upper end, the both ends of drive rod respectively with measuring staff and hundred
Divide the contact of table gauge head.
Further, dial gauge grip slipper is equipped with internal screw thread, and dial framework upper end is equipped with external screw thread, and dial gauge grip slipper is sheathed on
Dial framework upper end.
Further, it surveys and is equipped with bushing between gauge package mounting hole and dial framework.
Further, support frame is equipped with for locking bushing and surveys the locking bolt of gauge package；Locking bolt setting
In in the sidewall thread hole of support frame.
Further, further include for survey gauge package calibrated to table block, table block is fixed on bottom plate.
Further, support frame as described above is bent plate type, is fixedly connected by screw with bottom plate on support frame base.
Further, pin locating holes are equipped on tooth shape locating block and bottom plate, are connected after being positioned by pin using screw
It connects.
Further, the clamping component includes the bootstrap block being fixed on bottom plate, and bootstrap block is equipped with guiding groove and draws
Guide screw pit, guidance threaded hole is interior to be equipped with guiding nut, and guiding nut is equipped with guide hump, and tooth form gripping block is placed in guidance
In the guiding groove of block, tooth form gripping block lower end is equipped with the guide recess with the guide hump cooperation on guiding nut；Guiding nut
Guide hump be placed in the guide recess of tooth form gripping block.
A kind of detection method of blade tip height, comprising the following steps:, will after positioning blade to be measured by locating piece
Blade is close to along tooth shape locating block, clamps blade with tooth form gripping block, after calibrating to survey gauge package, utilizes measurement table group
Part directly measures and obtains the actual value of blade tip.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of detection positioning device of blade tip height of the present invention is determined by the way that bottom plate is arranged and is fixed on bottom plate
Position block, support frame, tooth form gripping block, tooth shape locating block and survey gauge package；Tooth shape locating block is fixed on bottom plate, and tooth form clamps
Block is fixed on tooth shape locating block side by clamping component, and tooth form gripping block and tooth shape locating block are blade rest area to be measured；Branch
Support upper end, which is equipped with, surveys gauge package mounting hole, surveys gauge package and is fixed in survey gauge package mounting hole, surveys gauge package position
In blade rest area to be measured upper end；Locating piece is fixed on tooth form gripping block and tooth shape locating block side, will be to using 2 pairs of locating piece
It surveys blade to be positioned, is close to blade along tooth shape locating block, clamp blade with tooth form gripping block, carry out school to gauge package is surveyed
It after standard, is directly measured using survey gauge package and obtains the actual value of blade tip, the present apparatus solves leaf after laser melting coating reparation
Piece blade tip height and creep compliance detect problem, improve checkability, and laser melting coating repairs rear blade blade tip height detection method
Research, meet the testing requirements that engine repairs rear blade class blade tip and creep compliance etc., structure novel is easy to operate, fixed
Position clamping detection reliability agility is high, and method available extensive use in the detection of blade after repair has and pushes away
Wide value.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the present invention；
Fig. 2 is Fig. 1 left view.
Fig. 3 is the structural schematic diagram of bottom plate；
Fig. 4 is the structural schematic diagram of locating piece；
Fig. 5 is the structural schematic diagram of dial framework；
Fig. 6 is the structural schematic diagram of tooth form gripping block；
Fig. 7 is the structural schematic diagram of bootstrap block；
Fig. 8 is the structural schematic diagram of tooth shape locating block；
Fig. 9 is the structural schematic diagram to table block；
Figure 10 is the structural schematic diagram of measuring staff；
Figure 11 is the structural schematic diagram of bushing；
Figure 12 is the structural schematic diagram of table folder.
Wherein, 1, bottom plate；2, locating piece；3, support frame；4, guiding nut；5, tooth form gripping block；7, bootstrap block；8, tooth form
Locating piece；9, to table block；10, measuring staff；11, bushing；12, measuring staff sleeve；13, dial gauge grip slipper；14, dial framework；15, tension spring；
16, locking bolt；21, dial gauge.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figures 1 to 12, a kind of detection positioning device of blade tip height, including bottom plate 1 and it is fixed on bottom
Locating piece 2, support frame 3, tooth form gripping block 5, tooth shape locating block 8 and survey gauge package on plate 1；Tooth shape locating block 8 is fixed on
On bottom plate 1, tooth form gripping block 5 is fixed on 8 side of tooth shape locating block, tooth form gripping block 5 and tooth shape locating block 8 by clamping component
For blade rest area to be measured；3 upper end of support frame, which is equipped with, surveys gauge package mounting hole, surveys gauge package and is fixed on survey gauge package peace
It fills in hole, surveys gauge package and be located at blade rest area to be measured upper end；Locating piece 2 is fixed on tooth form gripping block 5 and tooth shape locating block 8
Side is placed for positioning to blade to be measured；
Surveying gauge package includes dial gauge 21, dial gauge grip slipper 13 and dial framework 14, and dial framework 14 is placed in the measurement of support frame
In table component mounting hole, measuring staff 10 and measuring staff sleeve 12 are equipped in 14 hollow structure of dial framework, measuring staff 10 is nested in measuring staff sleeve 12
Interior, dial gauge 21 is placed in dial gauge grip slipper 13, and dial gauge grip slipper 13 is connected through a screw thread with dial framework 14, dial gauge clamping
Seat 13 is equipped with internal screw thread, and 14 upper end of dial framework is equipped with external screw thread；It is equipped with drive rod in dial framework 14, is arranged with tension spring 15 on drive rod,
15 one end of tension spring and dial framework 14 are fixed, and the other end is fixedly connected with 10 upper end of measuring staff, the both ends of drive rod respectively with measuring staff 10 and
The contact of 21 gauge head of dial gauge；Under normal conditions, measuring staff 10 contacts with drive rod under the action of tension spring 15 and makes drive rod and hundred
The contact of point 21 gauge head of table, when measurement, by rotating dial gauge grip slipper 13, dial gauge 21 moves downward therewith, dial gauge 21
Gauge head drives drive rod to move downward, so that the movement of measuring staff 10 be driven to measure, when being measured, measuring staff 10 is in tension spring 15
Act on lower self-return；
It surveys and is equipped with bushing 11 between gauge package mounting hole and dial framework 14, convenient for surveying the replacement and pick-and-place of gauge package；
Support frame 3 is equipped with for locking bushing 11 and surveys the locking bolt 16 of gauge package；Locking bolt 16 is set to
In the sidewall thread hole of support frame 3, is locked and loosened by screw-driven；
It further include being fixed on bottom plate 1 to table block 9 to table block 9, for being calibrated to survey gauge package；
Support frame as described above 3 is bent plate type, is fixedly connected by screw with bottom plate 1 on 3 pedestal of support frame；
Pin locating holes are equipped on tooth shape locating block 8 and bottom plate, is connected after being positioned by pin using screw, makes tooth form
Locating piece 8 is linked together with bottom plate 1；
The clamping component includes the bootstrap block 7 being fixed on bottom plate 1, and bootstrap block 7 is equipped with guiding groove and guidance screw thread
Hole, guidance threaded hole is interior to be equipped with guiding nut 4, and guiding nut 4 is equipped with guide hump, and tooth form gripping block 5 is placed in bootstrap block 7
Guiding groove in, 5 lower end of tooth form gripping block be equipped with on guiding nut 4 guide hump cooperation guide recess；Guiding nut 4
Guide hump be placed in the guide recess of tooth form gripping block 5, rotation is threadedly engaged by guiding nut 4 and bootstrap block 7, guidance
Raised band movable tooth shape gripping block 5 is slided in the guiding groove of bootstrap block 7；Blade to be measured is placed in tooth form gripping block 5 and tooth form is fixed
Between the block 8 of position, distance is adjusted in tooth form clamping direction by bootstrap block, is clamped when blade clamps along tenon tooth direction；
A kind of detection method of blade tip height, comprising the following steps: after blade to be measured is positioned by locating piece 2,
Blade is close to along tooth shape locating block 8, clamps blade with tooth form gripping block 5, after calibrating to survey gauge package, utilizes measurement
Table component directly measures and obtains the actual value of blade tip.Specifically by be set on bottom plate 1 to table block 9 to dial gauge 21
It is calibrated, the survey gauge package then formed using dial gauge 21, dial framework 14 and measuring staff 10 is directly read by dial gauge 21
The actual value that laser melting coating repairs rear blade blade tip can be obtained.
It is detected by repairing rear blade blade tip height to laser melting coating using the present apparatus, can be realized blade tip height
Degree accurately measures, and meets the testing requirements that engine repairs rear blade class blade tip and creep compliance etc., solves laser melting coating
It repairs rear blade blade tip height and creep compliance detects problem, improve checkability, be a kind of omnipotent, structure novel, operation
Convenient, it is high that positioning clamping detects reliability agility, method available extensive use in the detection of blade after repair,
With promotional value.
Claims (10)
1. a kind of detection positioning device of blade tip height, which is characterized in that including bottom plate (1) and be fixed on bottom plate (1)
On locating piece (2), support frame (3), tooth form gripping block (5), tooth shape locating block (8) and survey gauge package；Tooth shape locating block (8)
It is fixed on bottom plate (1), tooth form gripping block (5) is fixed on tooth shape locating block (8) side, tooth form gripping block by clamping component
It (5) is blade rest area to be measured with tooth shape locating block (8)；Support frame (3) upper end, which is equipped with, surveys gauge package mounting hole, measures table group
Part, which is fixed on, to be surveyed in gauge package mounting hole, is surveyed gauge package and is located at blade rest area to be measured upper end；Locating piece (2) is fixed on tooth
Shape gripping block (5) and tooth shape locating block (8) side.
2. a kind of detection positioning device of blade tip height according to claim 1, which is characterized in that survey gauge package
Including dial gauge (21), dial gauge grip slipper (13) and dial framework (14), dial framework (14) is placed in the survey gauge package installation of support frame
In hole, measuring staff (10) and measuring staff sleeve (12) are equipped in dial framework (14) hollow structure, measuring staff (10) is nested in measuring staff sleeve (12)
Interior, dial gauge (21) is placed in dial gauge grip slipper (13), and dial gauge grip slipper (13) is connected through a screw thread with dial framework (14)；Table
Be equipped with drive rod in frame (14), be arranged with tension spring (15) on drive rod, tension spring (15) one end and dial framework (14) are fixed, the other end with
Measuring staff (10) upper end is fixedly connected, and the both ends of drive rod are contacted with measuring staff (10) and dial gauge (21) gauge head respectively.
3. a kind of detection positioning device of blade tip height according to claim 2, which is characterized in that dial gauge clamping
Seat (13) is equipped with internal screw thread, and dial framework (14) upper end is equipped with external screw thread, and dial gauge grip slipper (13) is sheathed on dial framework (14) upper end.
4. a kind of detection positioning device of blade tip height according to claim 1 or 2, which is characterized in that measurement table
Bushing (11) are equipped between component mounting hole and dial framework (14).
5. a kind of detection positioning device of blade tip height according to claim 4, which is characterized in that support frame (3)
It is equipped with for locking bushing (11) and surveys the locking bolt (16) of gauge package；Locking bolt (16) is set to support frame (3)
Sidewall thread hole in.
6. a kind of detection positioning device of blade tip height according to claim 1, which is characterized in that further include being used for
To survey gauge package calibrated to table block (9), table block (9) is fixed on bottom plate (1).
7. a kind of detection positioning device of blade tip height according to claim 1, which is characterized in that support frame as described above
(3) it is bent plate type, is fixedly connected by screw with bottom plate (1) on support frame (3) pedestal.
8. a kind of detection positioning device of blade tip height according to claim 1, which is characterized in that tooth shape locating block
(8) and pin locating holes are equipped on bottom plate, are connected after being positioned by pin using screw.
9. a kind of detection positioning device of blade tip height according to claim 1, which is characterized in that the clamping group
Part includes the bootstrap block (7) being fixed on bottom plate (1), and bootstrap block (7) is equipped with guiding groove and guidance threaded hole, guides threaded hole
Interior to be equipped with guiding nut (4), guiding nut (4) is equipped with guide hump, and tooth form gripping block (5) is placed in drawing for bootstrap block (7)
In guide groove, tooth form gripping block (5) lower end is equipped with the guide recess with the guide hump cooperation on guiding nut (4)；Guiding nut
(4) guide hump is placed in the guide recess of tooth form gripping block (5).
10. a kind of based on a kind of blade tip height of the detection positioning device of blade tip height according to claim 1
Detection method, which comprises the following steps: after positioning blade to be measured by locating piece (2), blade is determined along tooth form
Position block (8) is close to, and clamps blade with tooth form gripping block (5), and after calibrating to survey gauge package, using surveying, gauge package is direct
Measurement obtains the actual value of blade tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811355727.6A CN109357590A (en) | 2018-11-14 | 2018-11-14 | A kind of the detection positioning device and measurement method of blade tip height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811355727.6A CN109357590A (en) | 2018-11-14 | 2018-11-14 | A kind of the detection positioning device and measurement method of blade tip height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109357590A true CN109357590A (en) | 2019-02-19 |
Family
ID=65345243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811355727.6A Pending CN109357590A (en) | 2018-11-14 | 2018-11-14 | A kind of the detection positioning device and measurement method of blade tip height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109357590A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421023A (en) * | 2019-07-30 | 2019-11-08 | 中国航发航空科技股份有限公司 | Blade of aviation engine corrector |
| CN110514092A (en) * | 2019-08-30 | 2019-11-29 | 中国航发动力股份有限公司 | A kind of blade tip height detecting device |
| CN113280710A (en) * | 2021-06-30 | 2021-08-20 | 中国航发动力股份有限公司 | Multi-size detection device and method for turbine working blade edge plate |
| CN113899284A (en) * | 2021-09-29 | 2022-01-07 | 中国航发动力股份有限公司 | Measuring tool and measuring method for detecting thickness of coating of engine blade |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203550852U (en) * | 2013-11-08 | 2014-04-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Measuring device for detecting blade chord length |
| CN205090901U (en) * | 2015-11-11 | 2016-03-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Utensil is surveyed to fan stator finish forge blade listrium profile |
| CN205342835U (en) * | 2015-12-31 | 2016-06-29 | 无锡透平叶片有限公司 | A general peening anchor clamps for steam turbine tenon tooth blade |
| CN206356941U (en) * | 2016-12-28 | 2017-07-28 | 无锡透平叶片有限公司 | A kind of revolution clamp for machining for middle-size and small-size square steel class tenon tooth shape blade root blade |
| CN206445544U (en) * | 2016-12-29 | 2017-08-29 | 无锡透平叶片有限公司 | A kind of set flute profile rotary jig that processing is cut for turbine blade rotary milling |
| CN108007304A (en) * | 2017-11-23 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of blade edge that measures is to the device and its application method of end standard distance |
| CN108548477A (en) * | 2018-05-30 | 2018-09-18 | 中国航发动力股份有限公司 | A kind of die forging rotor blade cast headgear position measures tooling and measurement method |
-
2018
- 2018-11-14 CN CN201811355727.6A patent/CN109357590A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203550852U (en) * | 2013-11-08 | 2014-04-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Measuring device for detecting blade chord length |
| CN205090901U (en) * | 2015-11-11 | 2016-03-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Utensil is surveyed to fan stator finish forge blade listrium profile |
| CN205342835U (en) * | 2015-12-31 | 2016-06-29 | 无锡透平叶片有限公司 | A general peening anchor clamps for steam turbine tenon tooth blade |
| CN206356941U (en) * | 2016-12-28 | 2017-07-28 | 无锡透平叶片有限公司 | A kind of revolution clamp for machining for middle-size and small-size square steel class tenon tooth shape blade root blade |
| CN206445544U (en) * | 2016-12-29 | 2017-08-29 | 无锡透平叶片有限公司 | A kind of set flute profile rotary jig that processing is cut for turbine blade rotary milling |
| CN108007304A (en) * | 2017-11-23 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of blade edge that measures is to the device and its application method of end standard distance |
| CN108548477A (en) * | 2018-05-30 | 2018-09-18 | 中国航发动力股份有限公司 | A kind of die forging rotor blade cast headgear position measures tooling and measurement method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421023A (en) * | 2019-07-30 | 2019-11-08 | 中国航发航空科技股份有限公司 | Blade of aviation engine corrector |
| CN110514092A (en) * | 2019-08-30 | 2019-11-29 | 中国航发动力股份有限公司 | A kind of blade tip height detecting device |
| CN113280710A (en) * | 2021-06-30 | 2021-08-20 | 中国航发动力股份有限公司 | Multi-size detection device and method for turbine working blade edge plate |
| CN113899284A (en) * | 2021-09-29 | 2022-01-07 | 中国航发动力股份有限公司 | Measuring tool and measuring method for detecting thickness of coating of engine blade |
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Application publication date: 20190219 |