CN109909433A - A kind of processing tool and processing method of centrifugal compressor - Google Patents
A kind of processing tool and processing method of centrifugal compressor Download PDFInfo
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- CN109909433A CN109909433A CN201910252958.2A CN201910252958A CN109909433A CN 109909433 A CN109909433 A CN 109909433A CN 201910252958 A CN201910252958 A CN 201910252958A CN 109909433 A CN109909433 A CN 109909433A
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Abstract
The invention discloses a kind of processing tool of centrifugal compressor and processing methods, including mandrel, the first platen, the second platen and clamp nut；The setting that first platen is coaxial and relative position is fixed is arranged on mandrel, and close to the end of mandrel, and the first positioning hole and the first riveting through hole for fixing casing are provided on the first platen；The shaft core position of second platen offers the second through-hole, second through-hole is slidably located on mandrel, the one-to-one second riveting through hole in pre-processed riveting hole site with diffuser is provided on second platen, and the position of the second riveting through hole is corresponded with the position of the first riveting through hole simultaneously；Clamp nut and mandrel thread cooperate, and clamp nut is used to the second platen pressing to the first platen.The processing tool, avoids the problem of riveted holes misalignment can not be installed, and then improves the yield rate of riveting installation.
Description
Technical field
The present invention relates to the processing tools and processing side of centrifugal compressor technical field more particularly to a kind of centrifugal compressor
Method.
Background technique
Centrifugal compressor is the important component of turbocharger, because its single stage supercharging is simple more extensive than high and structure
Using.Compressor casing and diffuser are the important components of centrifugal compressor, therefore the superiority and inferiority of its performance directly affects centrifugation pressure
The performance of mechanism of qi.The impeller of adaptation rotation inside compressor casing proposes the concentricity of compressor casing and diffuser higher
Requirement.
The processing and making process of centrifugal compressor at present, the mode mainly assembled again using separate machined, this kind add
Work mode for compressor casing and diffuser concentricity it is difficult to ensure that, easily occur impeller load onto after and casing friction；And
And the mode of separate machined assembling, it is also easy to compressor casing and diffuser riveted holes misalignment, the problem not riveted occur.
Therefore, the generally existing machining accuracy of existing processing method is not easy to guarantee the problem low with yield rate.It is required that certain processing of design
Tooling reduces error, improves precision and yield rate.
In conclusion it is low with yield rate how to solve the problems, such as that the machining accuracy of centrifugal compressor is not easy to guarantee, it has also become
Those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of processing tool of centrifugal compressor and processing methods, solve centrifugal compressor
Machining accuracy is not easy to guarantee the problem low with yield rate.
To achieve the goals above, the present invention provides a kind of processing tools of centrifugal compressor, including mandrel, the first pressure
Disk, the second platen and clamp nut；
The setting that first platen is coaxial and relative position is fixed on the mandrel, and close to the end of the mandrel
Portion arranges, the first positioning hole and the first riveting of the casing for fixing the centrifugal compressor are provided on first platen
Use through hole；
The shaft core position of second platen offers the second through-hole, and second through-hole is slidably located in the mandrel
On, the pre-processed riveting hole site being provided on second platen with the diffuser of the centrifugal compressor is right one by one
The the second riveting through hole answered, and the position of the second riveting through hole simultaneously with the first riveting through hole
Position corresponds；
The clamp nut and the mandrel thread cooperate, and the clamp nut is used to second platen pressing to institute
State the first platen.
Preferably, first platen is integrally formed structures with the mandrel.
Preferably, first platen and the mandrel are split type structure, and the shaft core position of first platen is opened
Equipped with first through hole, the first through hole fixation is set on the mandrel.
Preferably, the mandrel is multi-diameter shaft, and the multi-diameter shaft includes major diameter compatible with the middle through-hole of the casing
Section and path section compatible with the middle through-hole of the diffuser, first platen are located in the major diameter section, the major diameter
The between centers of section and the path section is used to offset with one end of the middle through-hole of the diffuser, second platen for it is described
The other end of the middle through-hole of diffuser offsets.
Preferably, the ejection hole for dismantling the casing is additionally provided on first platen.
Preferably, the quantity in the ejection hole is multiple, and being arranged circumferentially along first platen.
Preferably, threaded securing bores compatible with the fixing end of lathe, institute are provided on one end end face of the mandrel
It states and is provided with top-mounted vent compatible with the center point of lathe on the end face of the other end of mandrel.
Preferably, spring washer and plain cushion are also arranged on the mandrel, the spring washer and the plain cushion are respectively positioned on
Between second platen and the clamp nut, and between spring shim described in the plain cushion and the clamp nut.
Preferably, second platen is only capable of sliding along the axial direction of the mandrel.
Content, the processing tool of above-mentioned centrifugal compressor, including mandrel, the first platen, are introduced compared to background technique
Two platens and clamp nut；The setting that first platen is coaxial and relative position is fixed is on mandrel, and the end of close mandrel
It arranges, the first positioning hole and the first riveting through hole for fixing casing is provided on the first platen；The axis of second platen
Heart position offers the second through-hole, and the second through-hole is slidably located on mandrel, is provided on the second platen preparatory with diffuser
The one-to-one second riveting through hole in the riveting hole site processed, and the position of the second riveting through hole is simultaneously with the
The position of one riveting through hole corresponds；Clamp nut and mandrel thread cooperate, and clamp nut is used for the second platen
Press to the first platen.The processing tool is fixed by casing of the first positioning hole on the first platen to centrifugal compressor,
Diffuser and the second platen are successively inserted in one end from mandrel far from the first platen, and need to guarantee the first riveting through hole and
Two rivetings are faced with through hole, are then compressed the second platen to the first platen direction by clamp nut so that casing and
Diffuser matching is close to, due to the second riveting through hole on the first riveting through hole and the second platen on the first platen
Position corresponds, therefore drilling tool can be passed sequentially through and is pre-machined on the blade of the second riveting through hole and diffuser
Riveted holes punch operation is carried out to the corresponding position of casing, when due to punching be pre-machined on the blade by diffuser
Riveted holes punch casing, so that the riveted holes being pre-machined on the riveted holes and diffuser processed on casing
Location matches degree is more preferable, avoids the problem of riveted holes misalignment can not be installed, and then improves the yield rate of riveting installation, together
When due to the first platen and the second platen with mandrel it is coaxially arranged, can guarantee the coaxial of the first platen and the second platen
Degree, namely ensure that the concentricity between the middle through-hole on the middle through-hole on casing and diffuser, then make machining accuracy more
It is easily guaranteed that.
In addition, the processing method uses any of the above-described the present invention also provides a kind of processing method of centrifugal compressor
The processing tool of centrifugal compressor described in scheme, the processing method comprising steps of
Step S1: the mandrel is inserted in the one end of the casing of centrifugal compressor from mandrel far from the first platen, and is led to
It crosses the first positioning hole casing is fixed on first platen；
Step S2: diffuser and the second platen are successively inserted in one end from the mandrel far from first platen；
Step S3: one end from the mandrel far from first platen screws in clamp nut, by pressing described in turn
Tight nut is pressed on the diffuser on the matching end face of the casing, and when the clamp nut is rotated in place, and first
Riveting is faced with the second riveting with through hole with through hole；
Step S4: it is penetrated and is passed through on the blade of the diffuser with through hole from second riveting by drilling tool
Pre-processed riveted holes drill to the riveted holes to be processed of the casing；
Step S5: carrying out riveting operation to the riveted holes on the riveted holes and casing on diffuser by riveting equipment, with
Obtain the centrifugal compressor riveted；
Step S6: the clamp nut, second platen and the centrifugal compressor riveted are successively removed.
Since above-mentioned processing method uses the processing tool of centrifugal compressor, and above-mentioned processing tool has above-mentioned technology
Effect, therefore the processing method should also have corresponding technical effect, details are not described herein.
Detailed description of the invention
Fig. 1 is the whole schematic cross-sectional view of the processing tool of centrifugal compressor provided in an embodiment of the present invention；
Fig. 2 is the left view structural representation of Fig. 1；
Fig. 3 is the schematic cross-sectional view of the casing of centrifugal compressor provided in an embodiment of the present invention；
Fig. 4 is the left view structural representation of Fig. 3；
Fig. 5 is the schematic cross-sectional view of the diffuser of centrifugal compressor provided in an embodiment of the present invention；
Fig. 6 is the left view structural representation of Fig. 5.
In figure 1 above-Fig. 6,
Mandrel 1, major diameter section 11, path section 12, threaded securing bores 13, top-mounted vent 14, the shaft shoulder 15, the first platen 2, first are fixed
Position hole 21, first riveting through hole 22, ejection hole 23, the second platen 3, second riveting through hole 31, clamp nut 4, machine
Casket 5, the middle through-hole 50 of casing, second location hole 51, diffuser 6, the middle through-hole 60 of diffuser, pre-processed riveted holes
61, spring washer 7, plain cushion 8.
Specific embodiment
Core of the invention is to provide the processing tool and processing method of a kind of centrifugal compressor, solves centrifugal compressor
Machining accuracy is not easy to guarantee the problem low with yield rate.
In order to make those skilled in the art more fully understand technical solution provided by the invention, below in conjunction with attached drawing and
The present invention is described in further detail for specific embodiment.
As shown in figs 1 to 6, the processing tool of a kind of centrifugal compressor provided in an embodiment of the present invention, including mandrel 1,
One platen 2, the second platen 3 and clamp nut 4；Wherein, the first platen 2 is coaxially and the setting of relative position fixation is on mandrel 1,
And it is arranged close to the end of mandrel 1, the first positioning of the casing 5 for fixing centrifugal compressor is provided on the first platen 2
Hole 21 and the first riveting through hole 22；The shaft core position of second platen 3 offers the second through-hole, and the second through-hole is slidably located in
On mandrel 1, pre-processed 61 position of riveted holes with the diffuser 6 of centrifugal compressor is provided on the second platen 3 one by one
It is corresponding second riveting use through hole 31, and the position of the second riveting through hole 31 simultaneously with the first riveting through hole 22
Position corresponds；Clamp nut 4 is threadedly engaged with mandrel 1, and clamp nut 4 is used to the second platen 3 pressing to the first platen
2。
The processing tool of above-mentioned centrifugal compressor passes through the first positioning hole on the first platen in actual use
The casing of centrifugal compressor is fixed, diffuser and the second platen are successively inserted in one end from mandrel far from the first platen,
And need to guarantee that the first riveting is faced with the second riveting with through hole with through hole, then by clamp nut by the second platen to
First platen direction compresses so that the matching of casing and diffuser is close to, due on the first platen the first riveting through hole with
The second riveting on second platen is corresponded with perforation hole site, therefore drilling tool can pass sequentially through the second riveting with passing through
The riveted holes being pre-machined on the blade of through-hole and diffuser carry out punch operation to the corresponding position of casing, due to being when punching
Casing is punched by the riveted holes being pre-machined on the blade of diffuser so that the riveted holes processed on casing with
The location matches degree of the riveted holes being pre-machined on diffuser is more preferable, avoids the problem of riveted holes misalignment can not be installed,
Then the yield rate for improving riveting installation, simultaneously because the first platen and the second platen are coaxially arranged with mandrel, therefore energy
Enough guarantee the concentricity of the first platen and the second platen, namely ensure that middle through-hole on casing and the middle through-hole on diffuser it
Between concentricity, then machining accuracy is easier to ensure that.
It should be noted that can be integrally formed structures between the first platen 2 and mandrel 1, or split type
Structure, for example the shaft core position of the first platen 2 offers first through hole, and first through hole fixation is set on mandrel 1, fixation side
Formula can be by the way of key connection or welding etc..In actual application, it can be selected according to actual needs.
What needs to be explained here is that those skilled in the art will readily appreciate that, the casing 5 of centrifugal compressor
The middle through-hole 60 of middle through-hole 50 and diffuser 6 is inserted in after mandrel 1, it shall be guaranteed that with being adapted for mandrel, to guarantee casing
Matching precision with the concentricity of diffuser, after the machining accuracy and processing that both can then guarantee.First riveting perforation
The riveting that hole 22 and the second riveting use needed for being riveted with the quantity of through hole 31 with specific reference to the structure type of corresponding compressor
Tool selects, and for the compressor of certain model, the first riveting through hole and the second riveting through hole are equal
13 diameters can be used for the hole of 16mm, be used for riveting gun in actual use and push up penetrating for iron.
In further embodiment, above-mentioned mandrel 1 is preferably multi-diameter shaft, which includes the middle through-hole with casing 5
50 compatible major diameter sections 11 and path section 12 compatible with the middle through-hole 60 of diffuser 6, the first platen 2 are located at major diameter section 11
On, the shaft shoulder 15 of major diameter section 11 and path section 12 is used to offset with one end of the middle through-hole 60 of diffuser 6, and the second platen 3 is used for
It offsets with the other end of the middle through-hole 60 of diffuser 6.By the way that mandrel 1 to be designed to the structure type of multi-diameter shaft so that casing and
Diffuser matched respectively with mandrel it is more convenient, and by by the both ends of the surface of the middle through-hole of diffuser respectively with the shaft shoulder and second
The end face of platen offsets, so that clamp nut during precession, avoids diffuser and casing from directly generating excessive extruding force
And the case where damaging.
What needs to be explained here is that those skilled in the art will readily appreciate that, the processing big path section of mandrel 1
Specific size by the size of the middle through-hole in the size and diffuser 6 of the middle through-hole on the casing 5 of actual centrifugal compressor Lai
It is fixed；The threaded securing bores and top-mounted vent being arranged on the end face of mandrel 1 should be adapted with corresponding lathe standard component；And first
First positioning hole 21 on platen should determine with the size of second location hole 51 corresponding on casing 5,21 He of first positioning hole
Second location hole 51 is bolted to connection.It should also be noted that, the length of major diameter section (herein refers to the first platen of removing to account for
Outside part), (namely the length of the middle through-hole of casing is adapted) should be adapted with the leading portion thickness of compressor；Path section
Length should be slightly longer than diffuser middle through-hole length and the sum of the thickness of the second platen, have more part for being adapted to spring
The components such as washer and clamp nut.Such as in the present invention, for the centrifugal compressor of certain corresponding model, major diameter section diameter is
32mm, path section diameter are 30mm, and large and small diameter section is finishing, are adapted to compressor casing and diffuser internal diameter.Before mandrel
The sunk screw of end-face helical fixation hole fit standard M6, rear end face top-mounted vent are adapted to M6 sunk screw (depth 8mm).
In further embodiment, casing drilling is dismantled from mandrel with after whole riveting assembly for convenience
It is more convenient, the ejection hole 23 for dismantling casing 5 is additionally provided on the first platen 2.Hole is ejected by design, it can be with
Easily the compressor processed is ejected by chock.
What needs to be explained here is that the quantity in above-mentioned ejection hole 23 can be one, or multiple.The present invention is implemented
Preferably using multiple forms, and being arranged circumferentially along the first platen is arranged in scheme, because being disposed so as
By ejection hole eject process component when, can ejection hole circumferentially gradually eject, avoid generation shear stress, protect
The smooth ejector member in ejection hole is demonstrate,proved.
Those skilled in the art will readily appreciate that above-mentioned processing tool in use, is needed to mandrel
It is fixed, in general, above-mentioned mandrel is that processing is fixed by being mounted on lathe, is fixed on vehicle in order to facilitate the installation of
On bed, be provided with threaded securing bores 13 compatible with the fixing end of lathe on one end end face of above-mentioned mandrel 1, mandrel 1 it is another
Top-mounted vent 14 compatible with the center point of lathe is provided on the end face of one end.Of course, it should be understood that above-mentioned use vehicle
The mode that bed is fixed is only the preferable examples of the embodiment of the present invention, can also use ability in actual application
Other common fixed forms of field technique personnel, such as the positioning pin of sleeve flange cooperation vertical sleeve flange arrangement are positioned
The mode etc. of fixed central spindle.
In some more particular embodiments, in order to enable the second platen is not easy to loosen after compressing, Neng Goubao
Certain pretightning force is held, spring washer 7 is also arranged on mandrel 1, and spring washer 7 is located at the second platen 3 and clamp nut 4
Between.It enables to the coupling mechanism force of clamp nut to remain certain pretightning force by the effect of the spring washer, avoids
The case where loosening.
Also, in order to guarantee the service life of clamp nut and also to promote effective pressure end face, the spring pad
Plain cushion 8 is additionally provided between piece 7 and clamp nut 4.
In addition to this, convenient using the positioning for being in order to promote processing tool, the position adjustment time of the second platen is saved,
Second platen 2 is preferably only capable of sliding along the axial direction of mandrel 1, second platen itself can be made to be assembled on mandrel in this way
When, it just ensure that the position of the second riveting through hole and the first riveting through hole corresponds, avoid makes every time
Used time is both needed to the troublesome operation adjusted.Practical ways specifically can be, the corresponding part design for being arranged the second platen on mandrel
At the core shaft structure with laterally excision notch, the second through-hole of the second platen is corresponding with the mandrel cross sectional shape at the position,
The second platen can be limited after assembling in this way to rotate on mandrel, be only capable of sliding in the axial direction.It will be understood
It is that above-mentioned implementation is only the preferable examples of the embodiment of the present invention, in actual application, can also be this field
The bond of protrusion is provided in the common other structures form of technical staff, such as the inner wall of corresponding second through-hole of the second platen
Structure, the Position Design for corresponding to the bond structure on mandrel have keyway, to realize the structure types such as the purpose of limitation rotation.
In addition, the processing method uses any of the above-described the present invention also provides a kind of processing method of centrifugal compressor
The processing tool of centrifugal compressor described in scheme, and the processing method specifically includes step:
Step S1: mandrel 1 is inserted in the one end of the casing 5 of centrifugal compressor from mandrel 1 far from the first platen 2, and is led to
It crosses first positioning hole 21 casing 5 is fixed on the first platen 2；
Step S2: diffuser 6 and the second platen 3 are successively inserted in one end from mandrel 1 far from the first platen 2；
Step S3: one end from mandrel 1 far from the first platen 2 screws in clamp nut 4, is made by turn clamp nut 4
Diffuser 6 is pressed on the matching end face of casing 5, and when clamp nut 4 is rotated in place, the first riveting through hole 22 and the
Two riveting through holes 31 face；
Step S4: being penetrated by drilling tool from the second riveting through hole 31 and preparatory on the blade by diffuser 6
The riveted holes 61 processed drill to the riveted holes to be processed of casing 5；
Step S5: riveting behaviour is carried out to the riveted holes on the riveted holes 60 and casing 5 on diffuser 6 by riveting equipment
Make, to obtain the centrifugal compressor riveted；
Step S6: clamp nut 4, the second platen 3 and the centrifugal compressor riveted are successively removed.
The processing tool and processing method of centrifugal compressor provided by the present invention are described in detail above.It needs
Illustrate, all the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are
With the difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also
It including other elements that are not explicitly listed, or further include for this article or the intrinsic element of equipment.Do not having
In the case where more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article including above-mentioned element
Or there is also other identical elements in equipment.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the ordinary skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (10)
1. a kind of processing tool of centrifugal compressor, which is characterized in that including mandrel (1), the first platen (2), the second platen (3)
With clamp nut (4)；
The setting that first platen (2) is coaxial and relative position is fixed is on the mandrel (1), and the close mandrel
(1) end arranges that first that the casing (5) for fixing the centrifugal compressor is provided on first platen (2) is fixed
Through hole (22) are used in position hole (21) and the first riveting；
The shaft core position of second platen (3) offers the second through-hole, and second through-hole is slidably located in the mandrel (1)
On, the pre-processed riveted holes (61) with the diffuser of the centrifugal compressor (6) are provided on second platen (3)
Through hole (31) are used in one-to-one second riveting in position, and second riveting with the position of through hole (31) simultaneously with it is described
First riveting is corresponded with the position of through hole (22)；
The clamp nut (4) is threadedly engaged with the mandrel (1), and the clamp nut (4) is used for second platen
(3) first platen (2) is pressed to.
2. the processing tool of centrifugal compressor as described in claim 1, which is characterized in that first platen (2) with it is described
Mandrel (1) is integrally formed structures.
3. the processing tool of centrifugal compressor as described in claim 1, which is characterized in that first platen (2) with it is described
Mandrel (1) is split type structure, and the shaft core position of first platen (2) offers first through hole, and the first through hole is solid
Surely it is set on the mandrel (1).
4. the processing tool of centrifugal compressor as claimed in any one of claims 1-3, which is characterized in that the mandrel (1)
For multi-diameter shaft, the multi-diameter shaft include with the middle through-hole (50) of the casing (5) compatible major diameter section (11) and with the expansion
The compatible path section (12) of the middle through-hole (60) of depressor (6), first platen (2) are located on the major diameter section (11), institute
The shaft shoulder (15) of major diameter section (11) and the path section (12) is stated for one end phase with the middle through-hole (60) of the diffuser (6)
It supports, second platen (3) is used to offset with the other end of the middle through-hole (60) of the diffuser (6).
5. the processing tool of centrifugal compressor as described in claim 1, which is characterized in that also set on first platen (2)
It is equipped with the ejection hole (23) for dismantling the casing (5).
6. the processing tool of centrifugal compressor as claimed in claim 5, which is characterized in that it is described ejection hole (23) quantity be
It is multiple, and being arranged circumferentially along the first platen (2).
7. the processing tool of centrifugal compressor as described in claim 1, which is characterized in that one end end face of the mandrel (1)
On be provided with threaded securing bores (13) compatible with the fixing end of lathe, be arranged on the end face of the other end of the mandrel (1)
There is top-mounted vent (14) compatible with the center point of lathe.
8. the processing tool of centrifugal compressor as described in claim 1, which is characterized in that be also arranged on the mandrel (1)
Spring washer (7) and plain cushion (8), the spring washer (7) and the plain cushion (8) be respectively positioned on second platen (3) with it is described
Between clamp nut (4), and between the plain cushion (8) described spring shim (7) and the clamp nut (4).
9. the processing tool of centrifugal compressor as described in claim 1, which is characterized in that second platen (2) is only capable of edge
The axial direction of the mandrel (1) slides.
10. a kind of processing method of centrifugal compressor, which is characterized in that the processing method is used as in claim 1-9
The processing tool of described in any item centrifugal compressors, the processing method comprising steps of
Step S1: the mandrel is inserted in the one end of the casing (5) of centrifugal compressor from mandrel (1) far from the first platen (2)
(1), it and by the first positioning hole (21) by the casing (5) is fixed on first platen (2)；
Step S2: diffuser (6) and the second pressure are successively inserted in one end from the mandrel (1) far from first platen (2)
Disk (3)；
Step S3: one end from the mandrel (1) far from first platen (2) screws in clamp nut (4), passes through turn institute
Stating clamp nut (4) is pressed on the diffuser (6) on the matching end face of the casing (5), and in the clamp nut (4)
When being rotated in place, the first riveting is faced with the second riveting with through hole (31) with through hole (22)；
Step S4: penetrate and pass through the leaf of the diffuser (6) with through hole (31) from second riveting by drilling tool
The pre-processed riveted holes of on piece (61) drill to the riveted holes to be processed of the casing (5)；
Step S5: riveting behaviour is carried out to the riveted holes on the riveted holes (60) and casing (5) on diffuser (6) by riveting equipment
Make, to obtain the centrifugal compressor riveted；
Step S6: the clamp nut (4), the centrifugal compressor the second platen (3) and riveted successively are removed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113798874A (en) * | 2021-09-30 | 2021-12-17 | 成都航天万欣科技有限公司 | Multi-station centering tool and centering method |
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| CN109108697A (en) * | 2018-10-31 | 2019-01-01 | 北京航空航天大学 | A kind of thin-walled elastic bearing and its tooling, processing method |
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