CN206373657U - It is a kind of to wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall - Google Patents
It is a kind of to wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall Download PDFInfo
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- CN206373657U CN206373657U CN201720043975.1U CN201720043975U CN206373657U CN 206373657 U CN206373657 U CN 206373657U CN 201720043975 U CN201720043975 U CN 201720043975U CN 206373657 U CN206373657 U CN 206373657U
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Abstract
The utility model is a kind of to wait rigidity bearing servicing unit, including supporting capsule, sebific duct, pneumatic control valve and air pump for the deep chamber processing of annular thin wall, and described supporting capsule is ring-shaped bearing capsule, and inside is equal thickness toroidal cavity；The lateral wall of described supporting capsule is provided with valve, and described valve is provided with pneumatic head, and described valve is connected by one end of pneumatic head connection rubber tube, the other end of described sebific duct with air pump；Pneumatic control valve is provided with close to the side of air pump on described sebific duct, described pneumatic control valve can realize autonomous setting upper limit atmospheric pressure value.The utility model realizes rigidity redistribution, and reduce the ratio of the rigidity of various pieces, the change curve of rigidity in unit area is set to tend towards stability, the machining deformation of curved surface thin-wall part can effectively be reduced, effectively suppress the vibration in the cutting of curved surface thin-wall part, reduce processing noise, reduce mismachining tolerance, it is ensured that high processing efficiency and high suface processing quality.
Description
Technical field
The utility model is related to field of machining, more particularly to it is a kind of for the deep chamber processing of annular thin wall etc. rigidity branch
Hold servicing unit.
Background technology
It is vital to the cutting task of thin-wall construction, the especially deep chamber of annular thin wall is cut in aerospace industry
Cut the problem always fabricated.Annular thin wall depth cavity configuration in space structure, cavity thin-wall in the casing of such as engine is more
Structure, the precision of component, now using overall construction design, one are influenceed in order to reduce error accumulation caused by processing and assembling mode
Body formula processing technology, using the cutter overhang greatly, cuts the inner chamber such as casing thin-wall construction.Many annular thin wall deep cavity shell parts
Class part has that material cutting ability is poor, and system rigidity is poor, the characteristics of required precision is high, and the processing of annular thin wall depth chamber is existed
Very big problem, the phenomenon such as thin-wall construction work in-process can be deformed, resilience, there are problems that allowing knife, cause workpiece
Deformation, influence workpiece size precision, cutting surface quality and processing efficiency.
The problems such as machining deformation for inner chamber thin-wall construction process, flutter, lot of domestic and international scholar has carried out phase
Close research.
In terms of optimization processing technology, bravely waited in will and propose to utilize the modes such as spark efficient discharging milling and Electrolyzed Processing
Substitute traditional multi-axis NC milling technique；Arnaud gives the optimal cutting environment ginseng for ensureing precision and surface quality
Number；Campa proposes the method for estimation workpiece stable region to avoid flutter；Feng state sleeve etc. proposes to pay attention to the offline volume of digital control processing
Cheng Huanjie, Advanced Control Software shortens the time difference of amendment and compensation in processing；Li Shan etc. proposes to combine digitlization condition optimizing
Machining process route, seeks to process the breakthrough of problem in terms of numerical control programming；Li Guoming etc. is proposed according to inner chamber thin-wall construction
The feature of part is repartitioned to manufacturing procedure, optimization processing technology.But, simple internal cavity thin-wall structure processing technology it is excellent
Change is can not fundamentally to solve thin-wall construction poor rigidity, yielding problem, moreover the adjustment of involved cutting parameter
It is excessively complicated, it is impossible to grasp.
In terms of continuous system vibration suppression, Kolluru proposes pastes passive damping for workpiece, so as to minimize processing
The theory of vibration；Yang proposes to adhere to eddy current damping device in workpiece surface；Meriut is proposed to install vacuum cup for workpiece, subtracted
Small machining deformation；HamaedMoradi etc. proposes that, using adjustable damper (TVA), regenerative vibration can be suppressed.But, for processing
Face is for the thin-wall construction of inner chamber, the installation site of passive damping can not accurately determine, damper etc. is difficult in the narrow and small sky in inner chamber
Between in apply, therefore these methods are not suitable for many inner chamber thin-wall constructions with theoretical.
There is clearly disadvantageous and limitation in traditional inner chamber thin-wall construction supporting auxiliary, can not adapt to modern high-precision
Spend the requirement of processing.Traditional inner chamber thin-wall construction supporting householder method has：1. sandbag method is placed in inner chamber；2. fill wax method；3. patch
Yielding rubber band method etc..
In order to increase rigidity when casing intra vane is processed, inner chamber is used earliest and is placed in sandbag method supporting auxiliary
Chamber, this method efficiency is very low, even if cost is than relatively low, but support effects are not highly desirable, and the sand in sandbag can not
Compacting is firmly so as to remain supporting shape, and sandbag easily relaxation, deformation loses the ability of supporting auxiliary, therefore, inner chamber is placed
The method of sandbag is gradually eliminated.
In order to increase rigidity when casing intra vane is processed, inner chamber is fixed using the method toward filling wax in casing afterwards,
The wax of solid-like is melted at high temperature, pours into inner chamber and shakes up, makes wax uniform fold cavity wall, is played in fixed inner chamber increase
This method efficiency of chamber is very low, fill wax, wax melting, clear up residual wax time is longer, cost is high, have unqualified hair during part
It is raw, and have the residue of a small amount of wax in casing, quality is influenceed, therefore, the method for filling wax is gradually eliminated.
In order to increase rigidity when casing intra vane is processed, inner chamber is improved using the method for patch yielding rubber band followed by
Rigidity and resistance to deformation ability, i.e. yielding rubber band has very strong elastic and viscosity, can be attached to inner chamber thin-wall construction
On, using the tension-stretched thin-walled of itself, so as to weaken flutter, reduce machining deformation, this method efficiency is also very low, to thin
The surface cleanness of wall requires higher, and yielding rubber band not reusable edible, and capital consumption is relatively more.
The traditional inner chamber thin-wall construction supporting householder method of three of the above cuts both ways, but it is low to there is universal efficiency, effect
Really undesirable the characteristics of, replaced by emerging supporting ancillary technique.
Be present clearly disadvantageous and limitation in modern inner chamber thin-wall construction supporting auxiliary, still need to be improved.
Such as application in 07 month 2011, application publication number was that the A of CN 102248380 patent of invention proposes sinking support
Method carries out the supporting auxiliary of inner chamber thin-wall construction.The invention discloses a kind of sinking support method, it is mounted in magnetic molecule
In one soft cloth bag larger than machined thin-walled channels, soft cloth bag is placed in machined inner chamber, with hand is by reality and seals
Mouthful；Apply an external magnetic field to magnetic-particle, it is mutually inhaled together, supporting role is played during processing, after machining again
Apply the external magnetic field of an opposite direction, magnetic-particle is lost magnetism, so as to take out support.Although sinking support method
In, magnetic grain can interact in magnetic field, form non-yielding prop, improve the rigidity of thin-wall construction in process, still
It is not avoided that the generation of flutter；And this invention can not ensure that the intracapsular all magnetic grains of annular cloth are seamless and be adjacent to one
Rise, therefore the rigidity bearing such as can not realize；This invention requires that processing environment must have the uniform magnetic field that can produce particular orientation,
So that the application places of this invention are limited；The equipment in generation magnetic field needed for this invention is difficult voluntarily to build, need to be by purchasing
Mode is realized, which increase the fund input of production, have impact on productive profit.
Such as application in 03 month 2012, application publication number was that the A of CN 102691740 patent of invention is proposed using elastic
Support assembly carries out the supporting auxiliary of inner chamber thin-wall part.The invention discloses a kind of elastic bearing assembly, including elastic rubbery body,
And it is separately mounted to the support plate assembly at elastic rubbery body short transverse two ends, and elastic rubbery body build-in cavities, it is at least wrapped
Include and enclose the side wall for being located at its periphery, the lug boss of a bending laterally is formed on the side wall, the different radial direction of elastic rubbery body is cut
The side wall radius that face is intercepted is started to be gradually reduced to the two ends of elastic rubbery body from lug boss.Although the elastic bearing of the present invention
Rationally, stress is than more uniform, and deformation is axial consistent with it during stress, will not occur horizontal beat, when in use for assembly structure,
What need not be continued is inflated, and production and use cost are relatively low.But this elastic bearing is complicated, parts are more,
It is difficult batch production；Containing nearly 90 degree of bending structure in this structure, bending part stress concentration is the brightest during normal operation
It is aobvious, thus bending structure be this invention structure in it is most weak be also the position for being easiest to breakage；Again because this invents what is used
Filled media is air, and the pressure effect of air acts on inwall, and this bending part subjects shear stress and tension is made a concerted effort
Maximum, the life-span for further resulting in this elastic bearing greatly shortens.Also, the levelness of this invention supporting plane is by rubber
What the rigorous of plastic structure size ensured, so the high-precision requirement of physical dimension inevitably results in the difficulty of processing of product
Increase or be processing disqualification rate rise.
As in November, 2014 applies, application publication number is that the A of CN 104440153 patent of invention proposes utilization processing
Damping unit carries out the supporting auxiliary of inner chamber thin-wall part.Damping unit is processed the invention provides a kind of casing intra vane.Choose
The plastic body of the special trade mark (being difficult to be cut liquid destruction structure, repeated multiple times can use), plastic body is pressed the shape of thin-wall construction
Shape is processed into a kind of plastic cement damping unit, and damping unit is encased 80%-100% thin-wall construction, the position for needing to process
Put and reserve, stabilization is ensured by elastic tensioning or installation pin between each damping unit；Utilize the casing internal lobe of this invention
Piece processes damping unit to produce damping without cleaning casing and its internal structure, and environment friendly and pollution-free, lowers significantly
The manufacturing cost of casing, improves the qualification rate of casing finished product.But, before the application of the damping unit of this invention
It is that casing needs to beat positioning hole to carry, and the required precision of positioning hole is high, increases the complexity of process in casing mechanical processing process
Property, the suitable height of the technical merit requirement for workman, labor intensity is than larger, easily error.And each workpiece is required for
Carry out pretreatment and beat positioning hole, increased considerably workload, while also increasing the working strength of workman, reduce processing effect
Rate, causes mismachining tolerance to become big and uncontrollable, machined surface quality and machining accuracy cannot be guaranteed.The installation of damping unit
Process is comparatively laborious, influences processing efficiency；The machine-shaping of damping unit stills need higher precision, damping unit and thin-walled
Complexity with dismantling is installed and depends on the crudy of damping unit, therefore is doomed damping unit and was occurred with thin-walled
Tightly, excessively loose, just three kinds of situations, may bring inevitable problem to processing.
As in November, 2015 applies, application publication number is that the A of CN 105290836 patent of invention is proposed above and below utilization
Baffle ring clamping elastic rubber ring carries out the supporting auxiliary of inner chamber thin-wall part.The present invention discloses a kind of big overhanging casing zero of narrow space
Supporting auxiliary device in part process and the fixture for coordinating supporting auxiliary to use, including bottom plate, bearing, support ring, lead
Set on block, lower carrier plate, upper cover plate, gland, O-ring, screw, compression spring, the bottom plate and branch is fixedly installed on bearing, bearing
Set in carrier ring, support ring and spring eye is set on guide block, guide block, spring is set in the spring eye, and one end of spring is fixed on
In support ring；Set above guide block and lower carrier plate and upper cover plate are set above gland, gland, set between upper cover plate and lower carrier plate O-shaped
Circle, sets screw between gland and lower carrier plate, then increase in processed thin-wall construction another side corresponding position and radially and axially prop up
Auxiliary is held, is supported by the way of upper lower baffle ring clamping elastic rubber ring.The present invention can improve system rigidity, eliminate processing and shake
It is dynamic, realize that component is processed, meet design and matching requirements, reduce the occurrence of component is overproof, it is ensured that engine is smooth in time
Deliver.But, this invention needs specific fixture to coordinate competence exertion to act on jointly, and the component of fixture is more, complicated,
Debugging is difficult, and is not suitable for producing in enormous quantities；Elastic rubber ring size is fixed, and the size for the inner chamber applied is fixed, therefore elasticity
Rubber ring can not flexibly adapt to various inner chambers, and application is very narrow.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art to be used for what the deep chamber of annular thin wall was processed there is provided a kind of
, can be with the increase thin-walled knot of equal extent in process because gas supports the effect of capsule Deng rigidity bearing servicing unit
The rigidity of structure each several part；Because poor rigidity does not have change, but with the increase of rigidity, reduce the rigidity of thin-wall construction each several part
Ratio, makes the change of rigidity tend towards stability, it is achieved that the redistribution of the rigidity of workpiece to be machined, reduces thin-wall construction
Machining deformation, reduce processing in flutter；Solve simultaneously and be difficult to the problem that supports in narrow space, and do not result in
The additional deformation of annular thin wall depth chamber；And then solve the deep chamber of annular thin wall in working angles because rigidity is weak and caused by processing
The problem such as deformation is big and machined surface quality is difficult to ensure that.
To achieve these goals, the utility model uses following technical proposals：
It is a kind of to wait rigidity bearing servicing unit, including supporting capsule, sebific duct, air pressure control for the deep chamber processing of annular thin wall
Valve and air pump, the lateral wall of described supporting capsule are provided with valve, and described valve is provided with pneumatic head, and described valve passes through
One end of pneumatic head connection rubber tube, the other end of described sebific duct is connected with air pump, close to the side of air pump on described sebific duct
Provided with pneumatic control valve.Described pneumatic control valve, which can be realized, independently sets suitable upper limit atmospheric pressure value, when the intracapsular filling of supporting
The pressure of medium reaches the air pressure upper limit of setting, and the valve of pneumatic control valve is closed, and realizes that the filling every time to supporting capsule is
The filling of pressure.During the deep chamber processing of annular thin wall, using supporting capsule itself bearing under filled media effect
Expansion during pressure, to rigidity bearings such as weak hard parts realizations.
Further, described supporting capsule is ring-shaped bearing capsule, and inside is equal thickness toroidal cavity.
Further, the centre of described supporting capsule is hollow structure, is that cutter reserves motion and feeding space, convenient
Cutter carries out the machining of deep chamber,
Further, described supporting capsule material is butyl rubber, and supporting capsule is annular cryptomere, can make supporting capsule in branch
While holding inner chamber, moreover it is possible to reserve working space for cutter, knife bar etc., the processing beneficial to cutter to inner chamber.And support capsule
Various models can be processed into, from into a series, the inner chamber thin-wall construction of each size are adapted to.
Further, described valve uses American type valve, and described American type valve coordinates with American pneumatic head；Utilize gas
Inverse closing principle is pressed, the intracapsular power of bearing down on one is locked mainly by supporting, high pressure resistant, gas leakage is linearly relatively steep, i.e., gas leakage when air pressure is inadequate
Faster, and valve flow of aerating air is big, American pneumatic head is equipped with, the efficiency of inflation is very high.
Further, described American pneumatic head is screw-type pneumatic head, using only need to be by pneumatic head and gas during pneumatic head
The screw thread of mouth is engaged, due to being to be screwed, if high-pressure tyre can bear bigger backflow air pressure using this valve,
Valve will not be taken off by air pressure top.
Further, described sebific duct is inwall anti-high pressure rubber pipe.
Further, described air pump is as the power source of supporting capsule inflation, and inside is provided with filled media, described filling
Medium is gas.Air pump can provide power when being filled with and discharging filled media, shorten process time, improve work effect
Rate.
It is a kind of to wait rigidity bearing householder method for the deep chamber processing of annular thin wall, comprise the following steps：
Under step 1 original state, the supporting capsule of model corresponding with the deep cavity configuration of annular thin wall is transferred in unaerated state
Put in inner-cavity structure；
Step 2 sets the atmospheric pressure value of pneumatic control valve, atmospheric pressure value typically is set in into 20kPa, if thin-walled lumen thickness
Excessively small, 1/2~2/3 that above setting value may be selected is advisable；
Step 3 is coordinated by the screw thread of pneumatic head and valve, valve is tightly connected with pneumatic head, will be as by the use of air pump
In the gas press-in supporting capsule of filled media, until pneumatic control valve blocks path, screw out the internal cavity thin-wall structure of pneumatic head and enter
Row machining；
In step 4 milling process, the hollow structure of ring-shaped bearing capsule reserves motion and feeding space for cutter, facilitates knife
Tool carries out the machining of deep chamber；During milling, the rigidity bearings such as inner chamber offer are act as due to supporting capsule, internal chamber wall is propped up
Load is uniform, increases the overall rigidity of thin-walled, and can offset the dynamic cutting force of a part, therefore will not be because of part
Processing and produce machining deformation；The rigidity bearings such as inner chamber offer are act as due to supporting capsule again, various pieces are reduced
The ratio of rigidity, makes the change curve of rigidity in unit area tend towards stability, and reduces the flutter in processing；
After step 5 cutting terminates, the upper pneumatic head of connection on the valve of capsule is supported, filled media is drawn to capsule with air pump and done
It is flat, supporting capsule is smoothly taken out from the thin-wall construction of inner chamber.It therefore, it can effectively reduce the processing of inner chamber thin-wall construction
Deformation, effectively suppresses the vibration in thin-wall construction cutting, reduces processing noise, reduces mismachining tolerance, it is ensured that high surface adds
Working medium amount and high machining accuracy.
The beneficial effects of the utility model：
1st, novel in design, simple in construction, firm, convenient for production, easy-to-use, support effects are good；
2nd, solve due to the narrow space between thin-wall construction, it is impossible to using the problem of non-yielding prop, and will not make
Circularize the additional deformation of the deep chamber of thin-walled；Loop configuration cutter and knife bar the utility model may be directly applied to airspace engine machine
The produce reality of casket, it is only necessary to provide pressure by filled media by external tube；
3rd, the utility model the rigidity bearing, i.e., one such as can provide casing using filled media of the gas as supporting capsule
Aspect supports the effect of capsule due to gas in process, can be with the rigidity of the increase thin-wall construction each several part of equal extent；
On the other hand, because poor rigidity does not have change, but with the increase of each lumen portion rigidity, the firm of thin-wall construction each several part is reduced
The ratio of degree, makes the change curve of rigidity tend towards stability, and makes the supported power of the deep chamber of thin-walled uniform, therefore reduce adding for thin-wall construction
Work is deformed, and reduces the flutter in processing, directly reduction processing noise, is reduced mismachining tolerance, is improved machining accuracy；
4th, be either machined, still machine dismounting supporting capsule, all very it is simple to operation, only need using as
The gas of filled media is pressed into and extracted out supporting capsule；The utility model seriation, in the matching application of machining
To the operation of workman without particular/special requirement, quickly it can be grasped by numerous workmans.
Brief description of the drawings
Fig. 1 is threedimensional model schematic diagram of the present utility model；
Fig. 2 is application diagrammatic cross-section of the present utility model；
Wherein, 1- supports cavity thin-wall knot in capsule, 2- valves, 3- pneumatic heads, 4- sebific ducts, 5- pneumatic control valves, 6- air pumps, 7-
Structure, the deep deep Cavity surface II of Cavity surface I, 9- annulars of 8- annulars.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings：
Embodiment 1：
As shown in figure 1, a kind of wait rigidity bearing servicing unit, including supporting capsule 1, glue for the deep chamber processing of annular thin wall
Pipe 4, pneumatic control valve 5 and air pump 6, the lateral wall of described supporting capsule 1 are provided with valve 2, and described valve 2 is provided with inflation
First 3, described valve 2 is by one end of the connection rubber tube 4 of pneumatic head 3, and the other end of described sebific duct 4 is connected with air pump 6, described
Sebific duct 4 on close to air pump 6 side be provided with pneumatic control valve 5.Described pneumatic control valve 5 can realize that autonomous setting is suitable
Upper limit atmospheric pressure value, when the pressure of filled media in supporting capsule 1 reaches the air pressure upper limit of setting, the valve of pneumatic control valve 5 is closed,
Realize to be every time the filling of pressure to the filling for supporting capsule 1.During the deep chamber processing of annular thin wall, using supporting capsule
1 expansion when itself bearing pressure under filled media effect, to rigidity bearings such as weak hard parts realizations.
Further, described supporting capsule 1 is ring-shaped bearing capsule, and inside is equal thickness toroidal cavity.
Further, the centre of described supporting capsule 1 is hollow structure, is that cutter reserves motion and feeding space, side
Just cutter carries out the machining of deep chamber.
Further, the material of described supporting capsule 1 is butyl rubber, and supporting capsule 1 is annular cryptomere, can make supporting capsule
1 while inner chamber is supported, moreover it is possible to reserve working space for cutter, knife bar etc., the processing beneficial to cutter to inner chamber.And prop up
Various models can be processed into by holding capsule 1, from into a series, adapt to the inner chamber thin-wall construction of each size.
Further, described valve 2 uses American type valve, and described American type valve coordinates with American pneumatic head；Utilize
Air pressure inverse closing principle, mainly by supporting, the intracapsular power of bearing down on one is locked, and high pressure resistant, gas leakage is linearly relatively steep, i.e., leaked when air pressure is inadequate
Faster, and valve flow of aerating air is big, is equipped with American pneumatic head for gas, and the efficiency of inflation is very high.
Further, described American pneumatic head is screw-type pneumatic head, using only need to be by pneumatic head and gas during pneumatic head
The screw thread of mouth is engaged, due to being to be screwed, if high-pressure tyre can bear bigger backflow air pressure using this valve,
Valve will not be taken off by air pressure top.
Further, described sebific duct 4 is inwall anti-high pressure rubber pipe.
Further, described air pump 6 is as the power source of supporting capsule inflation, and inside is provided with filled media, and described fills out
Filling medium is gas, such as air.Air pump 6 can provide power when being filled with and discharging filled media, shorten process time, carry
High workload efficiency.
As shown in Fig. 2 homalographic is contacted supporting capsule 1 everywhere with upper and lower interior cavity thin-wall, so as to provide identical per part
Rigidity, it is to avoid because providing the additional deformation that support stiffness inequality is brought；Under once supporting secondary status, face to be processed can be
Annular depth Cavity surface I8 and the deep Cavity surface of two annulars of the deep Cavity surface II9 of annular, so once supporting can process the deep Cavity surface of 2 annulars,
Processing non-cutting time is shortened, processing efficiency is improved.
It is a kind of to wait rigidity bearing householder method for the deep chamber processing of annular thin wall, comprise the following steps：
Under step 1 original state, the supporting capsule 1 of model corresponding with the deep cavity configuration of annular thin wall is transferred in unaerated state
Put in inner-cavity structure；
Step 2 sets the atmospheric pressure value upper limit of pneumatic control valve 5, typically atmospheric pressure value is set in as 20kPa, if in thin-walled
Chamber thickness is excessively small, and 1/2~2/3 that above setting value may be selected is advisable；
Step 3 is coordinated by the screw thread of pneumatic head 3 and valve 2, valve 2 is tightly connected with pneumatic head 3, is utilized air pump 6
Gas press-in as filled media is supported in capsule, until pneumatic control valve blocks path；Screw out cavity thin-wall in 3 pairs of pneumatic head
Structure carries out machining；
In step 4 milling process, the hollow structure of ring-shaped bearing capsule reserves motion and feeding space for cutter, facilitates knife
Tool carries out the machining of deep chamber；During milling, due to supporting capsule 1 act as inner chamber provide etc. rigidity bearing, make internal chamber wall by
Supporting force is uniform, increases the overall rigidity of thin-walled, and can offset the dynamic cutting force of a part, therefore will not be because of office
The processing in portion and produce machining deformation；The rigidity bearings such as inner chamber offer are act as due to supporting capsule again, various pieces are reduced
Rigidity ratio, the change curve of rigidity in unit area is tended towards stability, reduce processing in flutter；
After step 5 cutting terminates, the upper pneumatic head 3 of connection on the valve 2 of capsule 1 is supported, filled media is drawn to air pump 6
Capsule is shrivelled, supporting capsule 1 is smoothly taken out from the thin-wall construction of inner chamber.It therefore, it can effectively reduce inner chamber thin-wall construction
Machining deformation, effectively suppress thin-wall construction cutting in vibration, reduce processing noise, reduce mismachining tolerance, it is ensured that it is high
Suface processing quality and high machining accuracy.
Embodiment 2：
Rigidity bearing effect of the present utility model of Denging can be better illustrated as shown in table 1.
The ratio changing rule of inner chamber rigidity everywhere before and after the effect of the utility model of table 1
| At cavity position 1 | At cavity position 2 | Stiffness ratio at position 1,2 | |
| Zhi Chengqian rigidity | A | B | A/B |
| The rigidity that supporting arrangement is provided | C | C | - |
| Rigidity after supporting | (A+C) | (B+C) | (A+C)/(B+C) |
Corresponding particular value is assigned for tri- unknown numbers of A, B, C in upper table 1, A=8 × 10 are made5N/m, B=4 × 105N/m, C
=3 × 105N/m, that is, see the table below 2：
The application example of the inner chamber ratio changing rule of rigidity everywhere before and after the effect of the utility model of table 2
| At cavity position 1 | At cavity position 2 | Stiffness ratio at position 1,2 | |
| Zhi Chengqian rigidity (N/m) | 8×105 | 4×105 | 8/4=2 |
| Supporting arrangement provides rigidity (N/m) | 3×105 | 3×105 | - |
| Rigidity (N/m) after supporting | (8+3)×105=11 × 105 | (4+3)×105=7 × 105 | 11/7≈1.57 |
Know in upper table 2, the stiffness ratio at position 1/2 is reduced to the rigidity after supporting by Zhi Chengqian stiffness ratio 2
The equal extent increase of rigidity and stiffness ratio reduce everywhere for ratio 1.57, i.e. inner chamber, and stiffness variation curve tends towards stability, from
And the utility model realizes and waits rigidity bearing and rigidity redistribution to the deep chamber of annular thin wall.
The utility model can be used for space flight, and chemical industry, water conservancy, the processing of the deep chamber of annular thin wall of the industry such as electric power is especially right
In the industry field of lightweight processing, noise, stability and the reliability requirement height of aircraft, ship, precision optical machinery equipment etc. etc.,
There is very wide popularizing application prospect.
It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deform still in protection model of the present utility model
Within enclosing.
Claims (7)
1. a kind of wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall, it is characterised in that including supporting capsule, glue
Pipe, pneumatic control valve and air pump, described supporting capsule are ring-shaped bearing capsule, and inside is equal thickness toroidal cavity；Described supporting
The lateral wall of capsule is provided with valve, and described valve is provided with pneumatic head, and described valve passes through the one of pneumatic head connection rubber tube
End, the other end of described sebific duct is connected with air pump；Pneumatic control valve is provided with close to the side of air pump on described sebific duct, it is described
Pneumatic control valve can realize autonomous setting upper limit atmospheric pressure value；The power source that described air pump is inflated as supporting capsule.
2. a kind of as claimed in claim 1 wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall, its feature exists
In the centre of described supporting capsule is hollow structure, is that cutter reserves motion and feeding space.
3. a kind of as claimed in claim 1 wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall, its feature exists
In the material of described supporting capsule is butyl rubber.
4. a kind of as claimed in claim 1 wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall, its feature exists
In described valve uses American type valve, and described American type valve coordinates with American pneumatic head.
5. a kind of as claimed in claim 1 wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall, its feature exists
In described sebific duct is anti-high pressure rubber pipe.
6. a kind of as claimed in claim 1 wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall, its feature exists
In provided with filled media inside described air pump.
7. a kind of as claimed in claim 6 wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall, its feature exists
In described filled media is gas.
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| CN201720043975.1U CN206373657U (en) | 2017-01-13 | 2017-01-13 | It is a kind of to wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall |
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| CN201720043975.1U CN206373657U (en) | 2017-01-13 | 2017-01-13 | It is a kind of to wait rigidity bearing servicing unit for the deep chamber processing of annular thin wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736756A (en) * | 2017-01-13 | 2017-05-31 | 山东大学 | It is a kind of to wait rigidity bearing servicing unit and method for the chamber processing of annular thin wall depth |
| CN107900742A (en) * | 2017-12-27 | 2018-04-13 | 嘉兴微芒科技有限公司 | For clamping the fixture of cosmetics compact case |
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2017
- 2017-01-13 CN CN201720043975.1U patent/CN206373657U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736756A (en) * | 2017-01-13 | 2017-05-31 | 山东大学 | It is a kind of to wait rigidity bearing servicing unit and method for the chamber processing of annular thin wall depth |
| CN107900742A (en) * | 2017-12-27 | 2018-04-13 | 嘉兴微芒科技有限公司 | For clamping the fixture of cosmetics compact case |
| CN107900742B (en) * | 2017-12-27 | 2023-11-21 | 上海润美包装材料有限公司 | Clamp for clamping cosmetic powder cake box |
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