CN107138325B - Blade sprays Protecting clamping apparatus - Google Patents
Blade sprays Protecting clamping apparatus Download PDFInfo
- Publication number
- CN107138325B CN107138325B CN201710407146.1A CN201710407146A CN107138325B CN 107138325 B CN107138325 B CN 107138325B CN 201710407146 A CN201710407146 A CN 201710407146A CN 107138325 B CN107138325 B CN 107138325B
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- China
- Prior art keywords
- accommodation groove
- blade
- block
- chuck body
- listrium
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0285—Stands for supporting individual articles to be sprayed, e.g. doors, vehicle body parts
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- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
The invention discloses a kind of blades to spray Protecting clamping apparatus, for be connected on spraying equipment with to blade listrium lower surface and tenon protect, blade spraying Protecting clamping apparatus includes: the chuck body for being connected with spraying equipment, chuck body is equipped with the accommodation groove for accommodating tenon, accommodation groove runs through the two side walls of chuck body and is connected to the upper surface of chuck body, evagination and the length direction extension along accommodation groove locating flange is symmetrically arranged in the two side walls of accommodation groove, with the long side for supporting locating blades listrium and make blade listrium the exposed chuck body in upper surface upper surface.It is divided into first block and the second block at accommodation groove length direction both ends, with the both ends for blocking accommodation groove and locating flange is cooperated to support the short side of locating blades listrium, the first block and the second block are partially submerged into accommodation groove and support the tenon in accommodation groove to grip tenon.Locking member for locking the first block and the second block and chuck body.
Description
Technical field
The present invention relates to blades to spray field, particularly, is related to a kind of blade spraying Protecting clamping apparatus.
Background technique
Vacuum plasma spray coating is exactly that workpiece, turntable, spray gun etc. are placed on the plasma spray carried out in airtight vacuum cabin
It applying, vacuum plasma spray coating avoids the oxidation in atmospheric environment, and the cleaning effect of transferred arc can make workpiece surface cleaner,
Conducive to the combination of coating and matrix, therefore, Vacuum Plasma Spray Technology is widely used in aero-turbine component, plays
Better resistance to high temperature oxidation, resistance to high temperature corrosion, the high temperature effect of obturaging.
The moving turbine blade of certain type uses vacuum plasma spray coating nickel-cobalt-chromium-aluminium-yttrium-tantalum coating, technique requirement
Blade and listrium surface area to entire blade spray, and the thickness control of coating is other between 0.03-0.05mm
Position (especially tenon position) must be protected.In the prior art, frequently with the blade protection as shown in attached drawing Fig. 1 and 2
Fixture carries out clamping protection to the tenon of blade when blade is sprayed, and fixture includes two pieces of long clamping plates 1 being oppositely arranged, is located at two
Two pieces short clamping plate 2 and lock-screw 3 between the long clamping plate of block etc., two pieces long clamping plate 1, which is equipped with, is used to support positioning listrium long side
Step, when clamping, blade by the suspension strut of listrium long side between the 1 of two pieces of long clamping plates, and it is solid by the locking of lock-screw 3
Fixed, the upper surface of fixture is the curved surface being adapted with listrium upper surface.
Since fixture grips listrium long side, under the action of clamping force, the edge of listrium long side and long folder
Gap between the side of plate is very small, therefore after clamping, the upper surface of the upper surface of listrium closely fixture, to easily go out when spraying
Existing coating " bridging " phenomenon, i.e. listrium upper surface and fixture upper surface connect into one piece, after the completion of spraying by coating, dismounting fixture
When, since listrium and fixture form " bridging " phenomenon, in unloading blade, first listrium coating and fixture coating are divided
It comes, then blade is taken out from fixture at leisure, " chipping " phenomenon occurs in part listrium edge coating in this process, leads
Cause blade that need to carry out secondary spraying；After clamping, since blade only passes through listrium flying shore, blade is easy offset or shakes when spraying
It is dynamic, therefore need constantly to adjust lock-screw in spraying process to adjust the levelness of listrium；Every time after use due to shield jig,
Fixture end face coating can all be accumulated, therefore need manually throw to the end face of fixture after having sprayed every time to repair, due to fixture end face
Type face be curved surface, difficulty is repaired in throwing, and is thrown each time and repaired the precision of rear jig upper surface and not can guarantee, and fixture is caused to be reused
Rate is low.
Summary of the invention
The present invention provides a kind of blades to spray Protecting clamping apparatus, after solving to spray existing for existing blade protection fixture
Listrium and fixture easily form " bridging " phenomenon, and the technical issues of constantly adjusting the levelness of listrium is needed in spraying process.
The technical solution adopted by the invention is as follows:
A kind of blade sprays Protecting clamping apparatus, for be connected on spraying equipment with when blade is sprayed under blade listrium
Surface and tenon are protected, and blade spraying Protecting clamping apparatus includes: the chuck body for being connected with spraying equipment, chuck body
It is equipped with the accommodation groove for accommodating tenon, accommodation groove runs through the two side walls of chuck body and connects with the upper surface of chuck body
It is logical, evagination and the length direction extension along accommodation groove locating flange is symmetrically arranged in the two side walls of accommodation groove, to be used for
It supports the long side of locating blades listrium and makes the upper surface of the exposed chuck body in the upper surface of blade listrium；It is divided into accommodating flute length
First block and the second block at direction both ends are spent, with the both ends for blocking accommodation groove and cooperates locating flange bearing positioning leaf
The short side of piece listrium, the first block and the second block, which are partially submerged into accommodation groove, supports the tenon in accommodation groove to clamp
Fixed tenon；Locking member for locking the first block and the second block and chuck body.
Further, the first block and the second block include being bonded for the side wall with chuck body to block accommodation groove
End face baffle；Locking member is clamping screw, and clamping screw passes through the first block and the after two block baffles and chuck body
Two blocks and chuck body are locked.
Further, the support lug of evagination, support lug insertion are equipped on each baffle towards the inner sidewall of accommodation groove
Width direction in accommodation groove and along accommodation groove extends；Support lug is equipped with for cooperating locating flange to the short of blade listrium
Side carries out the bearing step of positioning support, and bearing step extends along the length direction of support lug.
Further, the upper surface of support lug is flushed with the upper surface of baffle, and the depth for supporting step is blade edge
The 1/3~3/4 of plate short side thickness.
Further, on each baffle towards the inner sidewall of accommodation groove be equipped with jacking block, with for be embedded in accommodation groove with
It supports the end face of tenon in accommodation groove.
Further, the contact surface on jacking block for contacting with the end face of tenon is oblique to match with the end face of tenon
Face.
Further, the positioning surface of locating flange be horizontal plane, two with the accommodation groove that two positioning surfaces intersect respectively
Spacing between side wall is greater than blade listrium along the width of its longitudinal direction, and the gap between two positioning surfaces is less than blade edge
Width of the plate along its longitudinal direction.
Further, height of the positioning surface away from chuck body upper surface is the 1/3~3/4 of blade listrium long side thickness.
Further, the upper surface of chuck body is inclined-plane, and inclined-plane extends along the direction that blade listrium long side extends.
Further, chuck body includes clamp body, and clamp body is equipped with accommodation groove and locating flange；The lower end of clamp body
Face is connected with the mandril in the mounting hole for being inserted into spraying equipment.
The invention has the following advantages:
In blade spraying Protecting clamping apparatus of the invention, pass through the first block and the second block pair being partially submerged into accommodation groove
Tenon grip and then grips blade, solid clamp to blade compared to clamping blade listrium long side or short side
It is fixed, after gripping, the short side and first gear in gap, blade listrium between the long side and chuck body upper surface of blade listrium
Gap between block or the second block upper surface is larger, thus after the completion of spraying, the long side of blade listrium and chuck body
It is less prone between upper surface, between the upper surface of the upper surface of the short side of blade listrium and the first block or the second block
" bridging " phenomenon so that blade listrium is less prone to " chipping " phenomenon when unloading blade, and then reduces reprocessing after blade spraying
Rate improves spray efficiency, and the cost that uses manpower and material resources sparingly；On the other hand, when clamping blade, leaf is packed into from one end of accommodation groove
Piece, then locked the first block and the second block and chuck body by locking member, clamping, disassembling section are simple, required
After time is short, and clamping is fixed, blade is not only supported on chuck body, the first block and the second block, and tenon also passes through
First block and the second block grip, to be not easy to deviate in blade spraying process or shake, so there is no need to constantly adjust lock
Tight part is to adjust the levelness of listrium, and blade spray efficiency is high, and it is good to spray uniformity.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic view of the front view of existing blade protection fixture；
Fig. 2 is the overlooking structure diagram of Fig. 1；
Fig. 3 is the space structure schematic diagram of the blade spraying Protecting clamping apparatus of the preferred embodiment of the present invention；
Fig. 4 is the Space Explosion structural schematic diagram of Fig. 3；
Fig. 5 is the space structure schematic diagram of the clamp body of Fig. 3；
Fig. 6 is the space structure schematic diagram of the first baffle of Fig. 3；
Fig. 7 is the overlooking structure diagram of Fig. 6；
Fig. 8 is the space structure schematic diagram of the second baffle of Fig. 3.
Marginal data
1, long clamping plate；2, short clamping plate；3, lock-screw；10, chuck body；101, accommodation groove；102, locating flange；103,
Positioning surface；11, clamp body；12, mandril；20, the first block；21, baffle；22, support lug；221, step is supported；23, it pushes up
Block；231, contact surface；30, the second block；40, locking member.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Referring to Fig. 3 to Fig. 5, the preferred embodiment of the present invention provides a kind of blade spraying Protecting clamping apparatus, for being connected to
To protect when blade is sprayed the lower surface and tenon of blade listrium on spraying equipment, blade sprays Protecting clamping apparatus packet
Include: the chuck body 10 for being connected with spraying equipment, chuck body 10 are equipped with the accommodation groove 101 for accommodating tenon, hold
Slot 101 is set through the two side walls of chuck body 10 and is connected to the upper surface of chuck body 10, the two side walls of accommodation groove 101
On be symmetrically arranged with evagination and along the locating flange 102 that the length direction of accommodation groove 101 extends, for supporting locating blades edge
The long side of plate and the upper surface for making the exposed chuck body 10 in the upper surface of blade listrium.It further include being divided into 101 length of accommodation groove
First block 20 and the second block 30 at direction both ends, with the both ends for blocking accommodation groove 101 and cooperate locating flange 102
The short side of locating blades listrium is held, the first block 20 and the second block 30, which are partially submerged into accommodation groove 101 to support, is located at accommodating
Tenon in slot 101 is to grip tenon.It further include for locking the first block 20 and the second block 30 with chuck body 10
Tight locking member 40.
In blade spraying Protecting clamping apparatus of the invention, by the locating flange 102 in chuck body 10 to blade listrium
Long side carries out bearing positioning, and is accommodated by accommodation groove 101 to the tenon for the blade being supported on locating flange 102, then
The both ends of accommodation groove 101 are blocked by the first block 20 and the second block 30 and cooperate locating flange 102 to the short of blade listrium
While carrying out bearing positioning, and it is partially submerged into accommodation groove 101 and is supported by the first block 20 and the second block 30 and be located at accommodating
Tenon in slot 101 grips blade to grip to tenon.Blade of the invention sprays Protecting clamping apparatus
In, it is clamped and then the first block 20 being partially submerged into accommodation groove 101 and the second block 30 grip tenon
Fixed blade, compared to clamping blade listrium long side or short side to be gripped to blade, after gripping, blade listrium
30 upper surface of short side and the first block 20 or the second block in gap, blade listrium between 10 upper surface of long side and chuck body
Between gap it is larger, thus after the completion of spraying, between the long side of blade listrium and the upper surface of chuck body 10, blade edge
It is less prone to " bridging " phenomenon between the upper surface of the upper surface or the second block 30 of the short side of plate and the first block 20, thus
When unloading blade, blade listrium is less prone to " chipping " phenomenon, and then reduces the repair rate after blade spraying, improves spraying effect
Rate, and the cost that uses manpower and material resources sparingly；On the other hand, when clamping blade, it is packed into blade from one end of accommodation groove 101, then pass through lock
Tight part 40 locks the first block 20 and the second block 30 with chuck body 10, and clamping, disassembling section are simple, required time
It is short, and after clamping fixation, blade is not only supported on chuck body 10, the first block 20 and the second block 30, and tenon is also logical
It crosses the first block 20 and the second block 30 grips, to be not easy to deviate in blade spraying process or shake, so there is no need to continuous
Locking member 40 is adjusted to adjust the levelness of listrium, blade spray efficiency is high, and it is good to spray uniformity.
Optionally, as shown in Figure 6 to 8, the first block 20 includes for being bonded with the side wall of chuck body 10 to block
The baffle 21 of the end face of accommodation groove 101, the second block 30 also include for being bonded with the side wall of chuck body 10 to block accommodating
The baffle 21 of the end face of slot 101.Locking member 40 is clamping screw, and clamping screw will after passing through two block baffles 21 and chuck body 10
First block 20 and the second block 30 are locked with chuck body 10.
Further, as shown in Figure 6 to 8, on the baffle 21 of the first block 20 towards setting on the inner sidewall of accommodation groove 101
There is the support lug 22 of evagination, support lug 22 is embedded in accommodation groove 101 and extends along the width direction of accommodation groove 101.Bearing
Flange 22 is equipped with the bearing step 221 for cooperating locating flange 102 to carry out positioning support to the short side of blade listrium, bearing
Step 221 extends along the length direction of support lug 22.Likewise, towards accommodation groove 101 on the baffle 21 of the second block 30
Inner sidewall is equipped with the support lug 22 of evagination, and support lug 22 is embedded in accommodation groove 101 and along the width direction of accommodation groove 101
Extend.Support lug 22 is equipped with the branch for cooperating locating flange 102 to carry out positioning support to another short side of blade listrium
Cushion cap rank 221, bearing step 221 extend along the length direction of support lug 22.
In the embodiment of the present invention, as shown in Figure 6 and Figure 8, the upper surface of support lug 22 is flushed with the upper surface of baffle 21,
And the depth for supporting step 221 is the 1/3~3/4 of blade listrium short side thickness, so that the short side when blade listrium is supported on branch
When on cushion cap rank 221, the upper surface of the exposed blade spraying Protecting clamping apparatus of the invention in the upper surface of blade listrium short side, with into one
Step guarantees the coating quality of blade.
Still further, as shown in Figure 6 to 8, towards on the inner sidewall of accommodation groove 101 on the baffle 21 of the first block 20
Equipped with jacking block 23, to be supported for being embedded in accommodation groove 101 with the end face with the tenon being located in accommodation groove 101.Likewise, the
On the baffle 21 of two blocks 30 towards the inner sidewall of accommodation groove 101 be equipped with jacking block 23, with for be embedded in accommodation groove 101 with
It supports the end face of tenon in accommodation groove 101.
Preferably, as shown in fig. 7, the contact surface 231 on jacking block 23 for contacting with the end face of tenon is the end with tenon
The inclined-plane that face matches, to guarantee the contact quality of contact surface 231 Yu tenon end face.In the preferred embodiment of the present invention, jacking block
23 are integrally formed with support lug 22.
Optionally, as shown in figure 5, the positioning surface 103 of locating flange 102 is horizontal plane, phase is distinguished with two positioning surfaces 103
Spacing between the two side walls of the accommodation groove 101 of friendship is greater than the width of blade listrium along the long side direction, and two positioning surfaces 103
Between gap be less than blade listrium along its longitudinal direction width, so as to be further ensured that the long side of blade listrium is supported on
When on positioning surface 103, gap between the side wall of blade listrium long side and the side wall of accommodation groove 101, and then keep blade listrium long
" bridging " phenomenon is less prone between 10 upper surface of upper surface and chuck body on side.
Likewise, when the short side of blade listrium is supported on bearing step 221, the side wall of blade listrium short side and bearing
Between the side wall of step 221 have gap, the gap make blade listrium short side upper surface and support lug 22 upper surface it
Between be less prone to " bridging " phenomenon.
Preferably, as shown in figure 5, height of the positioning surface 103 away from 10 upper surface of chuck body is blade listrium long side thickness
1/3~3/4, thus when the long side of blade listrium is supported on positioning surface 103, the exposed folder in upper surface of blade listrium long side
Has the upper surface of ontology 10, to be further ensured that the coating quality of blade.
In the embodiment of the present invention, as shown in figure 5, the upper surface of chuck body 10 is inclined-plane, inclined-plane is along blade listrium long side
The direction of extension extends.After the completion of spraying to the upper surface of chuck body 10 carry out throw repair when, only need to be along 10 upper end of chuck body
The inclined direction in face prunes one layer of same thickness, compared with prior art fixture end face be curved surface, throwing repair it is easy to operate,
Throwing repair it is high-efficient, and throw repair 10 upper surface of rear jig ontology precision it is high, the reuse rate of fixture is high.
Optionally, as shown in figure 4, chuck body 10 includes clamp body 11, clamp body 11 is equipped with accommodation groove 101 and positioning
Flange 102.The lower end surface of clamp body 11 is connected with the mandril 12 in the mounting hole for being inserted into spraying equipment.The embodiment of the present invention
In, mandril 12 and clamp body 11 are welded to connect.In other embodiments, mandril 12 is threadedly coupled with clamp body 11, consequently facilitating
The height of mandril 12 is adjusted to be installed in the mounting hole of spraying equipment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of blade sprays Protecting clamping apparatus, for be connected on spraying equipment with when blade is sprayed to the following table of blade listrium
Face and tenon are protected, and the blade spraying Protecting clamping apparatus includes the chuck body for being connected with the spraying equipment
(10), the chuck body (10) is equipped with the accommodation groove (101) for accommodating the tenon, which is characterized in that
The accommodation groove (101) runs through the two side walls of the chuck body (10) and the upper surface with the chuck body (10)
Connection, be symmetrically arranged in the two side walls of the accommodation groove (101) evagination and prolongs along the length direction of the accommodation groove (101)
The locating flange (102) stretched, to position the long side of the blade listrium for supporting and make outside the upper surface of the blade listrium
Reveal the upper surface of the chuck body (10)；
It is divided into first block (20) and the second block (30) at the accommodation groove (101) length direction both ends, for blocking
The both ends of the accommodation groove (101) simultaneously cooperate the locating flange (102) bearing to position the short side of the blade listrium, and described the
One block (20) and second block (30) are partially submerged into the accommodation groove (101) and support positioned at the accommodation groove
(101) tenon in is to grip the tenon；
Locking member for locking first block (20) and second block (30) and the chuck body (10)
(40)。
2. blade according to claim 1 sprays Protecting clamping apparatus, which is characterized in that
First block (20) and second block (30) include for being bonded with the side wall of the chuck body (10)
To block the baffle (21) of the end face of the accommodation groove (101)；
The locking member (40) is clamping screw, and the clamping screw passes through two pieces of baffles (21) and the chuck body
(10) first block (20) and second block (30) and the chuck body (10) are locked after.
3. blade according to claim 2 sprays Protecting clamping apparatus, which is characterized in that
The support lug (22) of evagination is equipped on each baffle (21) towards the inner sidewall of the accommodation groove (101), it is described
Support lug (22) is embedded in the accommodation groove (101) and extends along the width direction of the accommodation groove (101)；
The support lug (22) is equipped with for cooperating the locating flange (102) to determine the short side of the blade listrium
The bearing step (221) of position bearing, bearing step (221) extend along the length direction of the support lug (22).
4. blade according to claim 3 sprays Protecting clamping apparatus, which is characterized in that
The upper surface of the support lug (22) is flushed with the upper surface of the baffle (21), and bearing step (221)
Depth is the 1/3~3/4 of the blade listrium short side thickness.
5. blade according to claim 2 sprays Protecting clamping apparatus, which is characterized in that
Jacking block (23) are equipped with towards the inner sidewall of the accommodation groove (101) on each baffle (21), with described for being embedded in
It is supported in accommodation groove (101) with the end face with the tenon being located in the accommodation groove (101).
6. blade according to claim 5 sprays Protecting clamping apparatus, which is characterized in that
Contact surface (231) on the jacking block (23) for contacting with the end face of the tenon is the end face phase with the tenon
The inclined-plane matched.
7. blade according to claim 1 sprays Protecting clamping apparatus, which is characterized in that
The positioning surface (103) of the locating flange (102) is horizontal plane, the institute intersected respectively with two positioning surfaces (103)
State width of the spacing between the two side walls of accommodation groove (101) greater than the blade listrium along its longitudinal direction, and two institutes
It states the gap between positioning surface (103) and is less than the blade listrium along the width of its longitudinal direction.
8. blade according to claim 7 sprays Protecting clamping apparatus, which is characterized in that
Height of the positioning surface (103) away from the chuck body (10) upper surface is the 1/3 of the blade listrium long side thickness
~3/4.
9. blade according to claim 8 sprays Protecting clamping apparatus, which is characterized in that
The upper surface of the chuck body (10) is inclined-plane, and the inclined-plane extends along the direction that the blade listrium long side extends.
10. blade according to claim 1 sprays Protecting clamping apparatus, which is characterized in that
The chuck body (10) includes clamp body (11), and the clamp body (11) is equipped with the accommodation groove (101) and described
Locating flange (102)；
The lower end surface of the clamp body (11) is connected with the mandril (12) in the mounting hole for being inserted into the spraying equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407146.1A CN107138325B (en) | 2017-06-02 | 2017-06-02 | Blade sprays Protecting clamping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407146.1A CN107138325B (en) | 2017-06-02 | 2017-06-02 | Blade sprays Protecting clamping apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107138325A CN107138325A (en) | 2017-09-08 |
| CN107138325B true CN107138325B (en) | 2019-03-22 |
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ID=59780651
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710407146.1A Active CN107138325B (en) | 2017-06-02 | 2017-06-02 | Blade sprays Protecting clamping apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN107138325B (en) |
Cited By (1)
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| EP3511113A1 (en) * | 2018-01-15 | 2019-07-17 | United Technologies Corporation | Grit boot mask tool and method for enclosing a blade in the tool |
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| CN107626494B (en) * | 2017-10-31 | 2019-07-05 | 中国航发成都发动机有限公司 | A kind of blade tenon spraying positioning protecting tool set-up |
| CN109513545B (en) * | 2018-10-15 | 2021-02-09 | 中国人民解放军第五七一九工厂 | Fixing device for plasma spraying of copper-nickel-indium coating on tenon of compressor blade |
| CN110102422B (en) * | 2019-04-30 | 2020-07-24 | 中国航发南方工业有限公司 | Blade spraying protection clamp and blade spraying protection method |
| CN111575671B (en) * | 2020-06-12 | 2022-03-29 | 中国人民解放军空军工程大学 | Clamp for preparing coating on selected area of blade surface and preparation method of coating |
| CN112355948B (en) * | 2020-10-29 | 2022-08-26 | 中国航发南方工业有限公司 | Guide vane equipment protection anchor clamps |
| CN113210160B (en) * | 2021-03-25 | 2022-09-16 | 中国航发南方工业有限公司 | Blade vacuum spraying protection clamp |
| CN114405715B (en) * | 2021-12-28 | 2023-08-18 | 东方电气集团东方汽轮机有限公司 | Clamping tool for spraying hollow blade of gas turbine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107138325A (en) | 2017-09-08 |
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