CN205702613U - Adjustable damping formula vibration damping in thin-wall part milling process presses down the device that quivers - Google Patents
Adjustable damping formula vibration damping in thin-wall part milling process presses down the device that quivers Download PDFInfo
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- CN205702613U CN205702613U CN201620559769.1U CN201620559769U CN205702613U CN 205702613 U CN205702613 U CN 205702613U CN 201620559769 U CN201620559769 U CN 201620559769U CN 205702613 U CN205702613 U CN 205702613U
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Abstract
The adjustable damping formula vibration damping that this utility model relates in a kind of thin-wall part milling process presses down the device that quivers.Thin-wall part vibration damping traditionally presses down the device that quivers, mostly it is for machining tool, reequip on frock clamp and process tool, optimize or the location of cutter, the aspects such as work flow arrangement are to reach to suppress blade flutter and the effect of vibration damping, but effect is the most preferable or limited, and economic input is the biggest.This utility model composition includes: vibration damping presses down the device that quivers (9), vibration damping presses down the device that quivers and includes sealing cavity (8), seal Plane Installation on cavity and have top board (1), annular seal space volume surrounding is restraint layer (7), restraint layer is internally installed damping layer (6), and damping layer is internally installed damping layer substrate (5), equipped with magnetic flow liquid (3) inside damping layer substrate, magnetic flow liquid is provided with 6 permanent magnets (2), outside permanent magnet, is wound with coil (4).This utility model adjustable damping formula vibration damping in thin-wall part milling process presses down the device that quivers.
Description
Technical field:
This utility model relates to thin-wall part digital control processing field, is specifically related to when four-shaft numerically controlled lathe, five-axle number control machine tool
Processing thin-walled parts, particularly during processing impeller blade, suppresses the generation of tremor in the course of processing and reduces thin-walled vibration etc..
Background technology:
Thin-wall part vibration damping the most traditionally presses down the device that quivers, and is for machining tool, frock clamp and processing cutter mostly
Reequip on tool, optimize or the location of cutter, the aspect such as work flow arrangement to reach to suppress blade flutter and the effect of vibration damping,
But effect is the most preferable or limited, and economic input is the biggest.Along with the fast development of the modern industry, as thin
The blade of wall part is widely used in lathe, vehicle, and Aero-Space are medium civilian or military industry field, and its blade profile is most
For non-extended straight-line surface and free form surface, the quality of its crudy directly decides overall performance, and therefore it plays important
Role, but owing to blade has the features such as wall is thin, poor rigidity, thickness time-varying, allowance are big, the course of processing is easily generated quivers
Shaking, this not only can reduce the machining accuracy of part, affect lathe and cutter life, also can seriously restrict stock-removing efficiency, institute
The most particularly significant with the vibration damping problem of Impeller Machining on lathe；
On the other hand, for thin-wall part, in addition to considering tremor, even if another serious problem is thin-wall part in processing
There is not tremor, but due to the thin poor rigidity of thin-wall part wall, in processing, acutely, this causes processing dimension, the precision of part in vibration
It is substantially reduced, governs the high accuracy processing of thin-wall part, so how suppressing the vibration of thin-wall part is also field of machining
One big problem；
Summary is got up, about following several: quivered to improve the anti-of lathe by grinding machine structure design or structure optimization
And damping property, increase the damping of machine processing system, by changing contact stiffness, change processing technique, Active Control Method
It is exactly that application controls theory is externally supplied energy and carries out Active Compensation control etc., up to the present, in actual commercial production
In only the most little solution effective, especially in terms of suppression thin-wall part milling parameter.
Utility model content:
The adjustable damping formula vibration damping that the purpose of this utility model is to provide in a kind of thin-wall part milling process presses down the device that quivers.
Above-mentioned purpose is realized by following technical scheme:
Adjustable damping formula vibration damping in a kind of thin-wall part milling process presses down the device that quivers, and its composition includes: vibration damping presses down the device that quivers,
Described vibration damping presses down the device that quivers and includes sealing cavity, and on described sealing cavity, Plane Installation has top board, described sealing cavity
Outer layer is restraint layer, and described restraint layer is internally installed damping layer, and described damping layer is internally installed damping layer substrate, institute
Equipped with magnetic flow liquid inside the damping layer substrate stated, described magnetic flow liquid is provided with 6 permanent magnets, described permanent magnetic
Coil it is wound with outside ferrum.
Adjustable damping formula vibration damping in described thin-wall part milling process presses down the device that quivers, and described permanent magnet is divided into 2 rows
It is arranged in parallel and often row 3, plane and the laminating of described top board on described permanent magnet.
Adjustable damping formula vibration damping in described thin-wall part milling process presses down the device that quivers, and described the subtracting vibration-repressing device that quivers passes through
Strong adsorption double faced adhesive tape and a side bonds of blade, another side of described blade is milling cutter processing.
Beneficial effect:
1. the adjustable damping formula vibration damping during this utility model is a kind of thin-wall part milling process presses down the device that quivers, and this product is main
Using the device of adjustable damping suppression blade flutter, be attached directly to the back side of processed blade, vibration damping presses down the magnetic quivering in device
The damping layer of rheological fluid and outer layer is had an effect and is reduced blade vibration, suppression blade flutter.
This utility model uses and seals the nonmetal die cavity that cavity is insulation, and the inside is filled with magnetic rheological liquid, and in type
Inside chamber, upside arranges 6 permanent magnets uniformly, and dense coil is wound around on the permanent magnet, die cavity bottom side and four simultaneously
Week attached to damping layer, by said structure, device is arranged in blade processing dorsal part, causes blade when tool sharpening blade
Strong tremor, variable current passes through coil, and causes the change of magnetorheological liquid viscosity, density, thus causes changing of rigidity
Become, thus the damping force producing the generation of strong damping force damping layer in addition suppresses tremor and the suppression blade of blade jointly
Vibration.
Depending on sealing cavity of the present utility model is according to the curved profile of blade, volume is little, and nonmetal flexible plastic plate has
Certain deformation space, it is possible to identical is attached on processing blade.
This utility model can come placement device, and the regulation to variable current according to the size of blade to be processed, changes
The power in magnetic field, comes the scope of application and the effect of corresponding adjusting apparatus, and the effect of suppression blade flutter is clearly.
Damping layer of the present utility model, for constrained damping structure, it is made up of three parts: restraint layer, damping layer and damping
Substrate, damping layer is between restraint layer and damping substrate, and constrained damping structure uses relatively thin damping layer the most available bigger
Structural parameter, can dissipate more vibrational energy, and its effectiveness in vibration suppression is also very good, and substrate i.e. annular seal space are external
Layer, mounting means is exactly the processing back side that damping layer is pasted onto substrate, and restraint layer is pasted onto the surface of damping layer, restraint layer
Surface also has the device absorbing energy, and the flexural deformation that blade produces when milling thin-wall part will stretch damping layer, and restraint layer
Elongation much smaller than the elongation of damping layer, now restraint layer will the elongation of suppression damping layer, when damping layer compresses, damping layer
Shortening the shortening much larger than restraint layer, now restraint layer is by the compression of suppression damping layer, owing to stretching and the compression of damping layer are received
To the restriction of restraint layer, therefore, damping layer can bear stretching and compression alternate load, and the damped layer of vibrational energy consumes in a large number
Dissipate, therefore can realize during cutting, reducing vibration and the purpose of suppression tremor, thus stability when improving cutting.
This utility model is attached to the damping layer of bottom side outside die cavity can destroy the generation of resonance effectively, and its principle is
The elasticity of damping layer can destroy resonance mechanism.
Vibration damping of the present utility model presses down the device that quivers can make workpiece tremor to be processed be obviously improved, crudy and
Machining accuracy is greatly improved, and effect is obvious.
Vibration damping of the present utility model presses down the damping layer of the annular seal space volume surrounding quivered in device and also produces powerful damping force
Suppression tremor, the compact conformation of this product, volume is little, and damping force is the most controlled, it is possible to meet the vibration of blade difference well
Under the conditions of needs.
Accompanying drawing illustrates:
Accompanying drawing 1 is overall structure schematic diagram of the present utility model.
Accompanying drawing 2 is the left view of accompanying drawing 1.
Accompanying drawing 3 is accompanying drawing 1 front view.
Accompanying drawing 4 is the A-A sectional view of accompanying drawing 2.
Accompanying drawing 5 is B-B sectional view in accompanying drawing 3.
Accompanying drawing 6 is one of installation site figure of the present utility model.
Accompanying drawing 7 is the two of installation site figure of the present utility model.
Detailed description of the invention:
Embodiment 1:
Adjustable damping formula vibration damping in a kind of thin-wall part milling process presses down the device that quivers, and its composition includes: vibration damping presses down the device that quivers
9, described vibration damping presses down the device that quivers and includes sealing cavity 8, and on described sealing cavity, Plane Installation has top board 1, described sealing
Cavity outer layer is restraint layer 7, and described restraint layer is internally installed damping layer 6, and described damping layer is internally installed damping layer
Substrate 5, equipped with magnetic flow liquid 3 inside described damping layer substrate, is provided with 6 permanent magnets 2, institute in described magnetic flow liquid
Coil 4 it is wound with outside the permanent magnet stated.
Embodiment 2:
Pressing down, according to the adjustable damping formula vibration damping in the thin-wall part milling process described in embodiment 1, the device that quivers, described is permanent
Magnet is divided into 2 rows and is arranged in parallel and often row 3, plane and the laminating of described top board on described permanent magnet.
Embodiment 3:
Pressing down, according to the adjustable damping formula vibration damping in the thin-wall part milling process described in embodiment 1 or 2, the device that quivers, described subtracts
Shaking and press down the device side bonds by strong adsorption double faced adhesive tape with blade 10 that quivers, another side of described blade is processing
Milling cutter 11.
Embodiment 4:
Press down, according to the adjustable damping formula vibration damping in the thin-wall part milling process described in embodiment 1-3, the device that quivers, be first by
Vibration damping is pressed down the device that quivers and is attached directly to the back side of blade to be processed by strong adsorption double faced adhesive tape, and the vibration damping after attaching presses down the device that quivers
Be not subjected to displacement the changing of the relative positions when blade processing, the damping layer that described vibration damping presses down magnetic rheological liquid and the outer layer quivering in device is common
Have an effect and suppress the tremor of blade, minimizing vibration；
Adjustable damping formula vibration damping in described thin-wall part milling process presses down the damping layer of the device that quivers, and is a kind of damping-constraining
Structure, is made up of three parts, restraint layer, damping layer and damping layer substrate, and damping layer is between restraint layer and substrate, and constraint hinders
Buddhist nun's structure uses the most available bigger Structural parameter of relatively thin damping layer, it is possible to more vibrational energy is lost,
Damping layer substrate i.e. annular seal space volume surrounding, mounting means is exactly the surface that damping layer is pasted onto damping layer substrate, constraint
Layer is pasted onto the surface of damping layer, and the surface of restraint layer also has the device absorbing energy, and when milling thin-wall part, blade produces
Flexural deformation will stretch damping layer, but the elongation of restraint layer is much smaller than the elongation of damping layer, so suppression is damped by restraint layer
The elongation of layer；
When damping layer compresses, the shortening of damping layer is much larger than the shortening of restraint layer, and now restraint layer will suppress damping layer
Compression, owing to the stretching of damping layer and compression receive the restriction of restraint layer, therefore, damping layer can bear stretching and compression is handed over
Varying load, the damped layer of vibrational energy dissipates in a large number, can realize suppression vibration and the purpose of tremor during cutting, be attached to simultaneously
The damping layer of the outside bottom side of die cavity can destroy the generation of resonance effectively, and its principle is that the elasticity of damping layer can destroy resonance
Mechanism；
Described vibration damping presses down the variable current passed through in the magnetic rheological liquid quivering in device and 6 coils and has an effect, from
And change the viscosity of magnetic rheological liquid, density, the most just change the rigidity of magnetic rheological liquid, produce damping force, reach to inhale with this
The vibration of the generation in receipts thin-wall part milling process and the effect of tremor, concentration and the density of magnetic rheological liquid medium directly affect
The modification scope of fluttering effect and frequency；
Described vibration damping presses down the magnetic rheological liquid quivering in device, and when blade processing, its direction of vibration overwhelming majority is parallel
In pole orientation, which ensure that the magnetic line of force is the most vertical with the flow direction of the magnetic rheological liquid in cavity and direction of vibration, this is just
The shear yield strength that can make magnetic rheological liquid changes, thus realizes the control to damping torque, changes vibration damping with this
Press down the damping force of the device that quivers；
Before using, vibration damping to be checked presses down the specification of the device that quivers, according to thickness and the working (finishing) area of blade, processing conditions with
The device of this reasonable Arrangement adjustable damping suppression blade flutter, for reaching preferably to suppress fluttering effect, can select to make with superposition
With device, layout is preferably scattered distribution attaches.
Embodiment 5:
The device that quivers, described top is pressed down according to the adjustable damping formula vibration damping in the thin-wall part milling process described in embodiment 1-4
Plate is hard plastic board, plays insulating effect, can be as the zero line of wire, and all of wire all converges at hard plastic board
In, as input and the control place of current in wire, it is to seal cavity, and described wire i.e. coil, coil is dense to be wrapped in
On magnetic pole, described magnetic pole, it is made up of permanent magnet, the size of its foundation top board and the damping of generation, uses and be divided into 2 rows
Parallel and every 3 arrangements of row, meet maximum magnetic field and arrange so that it is magnetic field's regularity reaches optimal effectiveness；
Described sealing cavity major architectural structure, stores all of magnetic rheological liquid, and it is the best to seal, and liquid will not be because of
Pressing down for vibration damping and quiver acutely earning of device and omit, use flexible plastic plate, its nonmetal character can guarantee that non-conductive, it is to avoid with magnetic
Rheological fluid is had an effect and is reduced suppression fluttering effect, itself has certain deformation space, the bearing height of cavity surrounding
It is respectively 6cm, 6cm, 6cm, 7cm, i.e. bottom surface and has more the deflection of 1cm, have certain thickness deformation, actual controllable deforming in addition
Amount is more than 1cm, and itself volume is little, so meeting the deformation design requirement of blade；Described vibration damping presses down the device that quivers by strength
Absorption double faced adhesive tape is directly against being attached to process on blade, it is ensured that the vibration damping after attaching presses down the device that quivers and is not subjected to displacement when blade processing
The changing of the relative positions, fixed effect is the best；
It is that character based on magnetic rheological liquid is used and designed that described vibration damping presses down the device that quivers, and magneto-rheological fluid is that one will
Saturation induction density is the highest, but the least high-quality soft magnetic materials of magnetic coercive force is evenly distributed in non-magnetic mother solution
Obtaining liquid, generally magneto-rheological fluid is free flowing liquid, and its denseness is near with oil phase, when magneto-rheological fluid is in magnetic
Time in the environment of field, its particle can be magnetized, magnetic neutrality become ferromagnetism, thus mutually have an effect, and forms one
Planting " chain " shape structure, be parallel to externally-applied magnetic field, thus have cured suspended substance, limit the flowing of fluid, magnetic rheological liquid belongs to can
Flow control body, can realize damping change and the stiffness change of device；
Device based on adjustable damping suppression blade flutter has the advantage that
1, the device of adjustable damping suppression blade flutter, simple in construction, cost performance is high, along with the tremor of processing blade, phase
The variable current of the coil answered causes viscosity and the change of density of magnetic flow liquid in die cavity, thus changes the rigidity of liquid, inhales
Receive tremor, the effect reaching to suppress blade flutter with this.The device of this passive control acts directly on and rises on the blade of tremor
Effect, to get well compared with the indirectly suppression fluttering effect on cutter, lathe or fixture traditionally；
2, the damping of device is adjustable, and suppression blade flutter is effective in the range of certain flutter frequency.By design device
Adjustable extent just can regulate and control the flutter frequency of processed blade flutter；
3, device is in order to preferably suppress blade flutter, needs rational arrangement apparatus in the quantity of blade and position.With
This reaches the optimal effectiveness of inhibition；
4, the cavity that seals of device has certain deformation space according to the curved profile of blade, and being attached at of can coincideing adds
On work blade；
5, the damping layer being attached to the internal bottom side of die cavity can destroy resonance mechanism effectively, thus reduces blade processing mistake
Cheng Zhendong, avoid the generation of covibration；
6, magnetic flow liquid is under the action of a magnetic field, and the rheological property of liquid there occurs significantly change, and the viscosity of liquid increases
And gradually lack mobility, when magnetic field intensity arrives certain value greatly, magnetic flow liquid by liquid to solid state transformed.This is magnetic flow liquid
The most attracting feature, and this process Rapid reversible, required electric energy is the least, is highly suitable for controlling in real time；
7, arrange 6 permanent magnets in device, considerably increase magnetic density, enhance the magnetic force in magnetic field；
8, the distinctive controllability of this antivibrator, can realize the regulation of rapid stepless damping force；
9, device is jointly played a role by magnetic flow liquid and damping layer and reduces blade processing process vibrations, suppression tremor.
Claims (3)
1. the adjustable damping formula vibration damping in thin-wall part milling process presses down the device that quivers, and its composition includes: vibration damping presses down the device that quivers, its
Feature is: described vibration damping presses down the device that quivers and includes sealing cavity, and on described sealing cavity, Plane Installation has top board, and described is close
Envelope cavity outer layer is restraint layer, and described restraint layer is internally installed damping layer, and described damping layer is internally installed damping layer
Substrate, equipped with magnetic flow liquid inside described damping layer substrate, is provided with 6 permanent magnets in described magnetic flow liquid, described
Permanent magnet outside be wound with coil.
Adjustable damping formula vibration damping in thin-wall part milling process the most according to claim 1 presses down the device that quivers, and it is characterized in that: institute
The permanent magnet stated is divided into 2 rows and is arranged in parallel and often row 3, plane and the laminating of described top board on described permanent magnet.
Adjustable damping formula vibration damping in thin-wall part milling process the most according to claim 2 presses down the device that quivers, and it is characterized in that: institute
The vibration damping stated presses down the device side bonds by strong adsorption double faced adhesive tape with blade that quivers, and another side of described blade is
Milling cutter processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620559769.1U CN205702613U (en) | 2016-06-12 | 2016-06-12 | Adjustable damping formula vibration damping in thin-wall part milling process presses down the device that quivers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620559769.1U CN205702613U (en) | 2016-06-12 | 2016-06-12 | Adjustable damping formula vibration damping in thin-wall part milling process presses down the device that quivers |
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| Publication Number | Publication Date |
|---|---|
| CN205702613U true CN205702613U (en) | 2016-11-23 |
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| CN201620559769.1U Expired - Fee Related CN205702613U (en) | 2016-06-12 | 2016-06-12 | Adjustable damping formula vibration damping in thin-wall part milling process presses down the device that quivers |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935795A (en) * | 2016-06-12 | 2016-09-14 | 哈尔滨理工大学 | Adjustable damping type vibration-attenuation and chatter-suppression device in milling process of thin-walled workpieces and vibration-attenuation method |
| CN106802630A (en) * | 2017-03-14 | 2017-06-06 | 东北大学 | The Parallel frequency domain method of the milling parameter stability prediction based on thin-wall part |
| CN110608169A (en) * | 2019-09-05 | 2019-12-24 | 珠海格力电器股份有限公司 | Compressor noise reduction box, noise reduction method, compressor and air conditioner |
-
2016
- 2016-06-12 CN CN201620559769.1U patent/CN205702613U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935795A (en) * | 2016-06-12 | 2016-09-14 | 哈尔滨理工大学 | Adjustable damping type vibration-attenuation and chatter-suppression device in milling process of thin-walled workpieces and vibration-attenuation method |
| CN105935795B (en) * | 2016-06-12 | 2018-08-03 | 哈尔滨理工大学 | Adjustable damping formula vibration damping in thin-wall part milling process presses down quiver device and oscillation damping method |
| CN106802630A (en) * | 2017-03-14 | 2017-06-06 | 东北大学 | The Parallel frequency domain method of the milling parameter stability prediction based on thin-wall part |
| CN110608169A (en) * | 2019-09-05 | 2019-12-24 | 珠海格力电器股份有限公司 | Compressor noise reduction box, noise reduction method, compressor and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20170612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |