CN107989958A - Active vibration damping boring bar based on electromagnetic damper - Google Patents
Active vibration damping boring bar based on electromagnetic damper Download PDFInfo
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- CN107989958A CN107989958A CN201711233795.0A CN201711233795A CN107989958A CN 107989958 A CN107989958 A CN 107989958A CN 201711233795 A CN201711233795 A CN 201711233795A CN 107989958 A CN107989958 A CN 107989958A
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- electromagnet
- rod
- boring bar
- electromagnetic damper
- mass
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/10—Cutting tools with special provision for cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
- B23B29/022—Boring bars with vibration reducing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/108—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The problem of active vibration damping boring bar based on electromagnetic damper, belongs to field of machining, solves easily failure or complicated existing for the existing active vibration damping boring bar based on damper, and manufacture difficulty is big.Active vibration damping boring bar of the present invention based on electromagnetic damper includes the body of rod, electromagnetic damper, 3-axis acceleration sensor and control system.Cutter head is provided with the front end of the body of rod, cutter head is used for fixturing blade.Electromagnetic damper is arranged on the inside of the body of rod.When the damping boring bar, which is used for boring, to be processed, 3-axis acceleration sensor is used for the acceleration information for measuring the body of rod, and sends it to control system.Control system is used for the damped coefficient for adjusting electromagnetic damper, until its acceleration information received reaches minimum.Active vibration damping boring bar of the present invention based on electromagnetic damper is processed suitable for right boring.
Description
Technical field
The present invention relates to a kind of active vibration damping boring bar, belong to field of machining.
Background technology
The operation principle of the existing active vibration damping boring bar based on damper is：When boring bar works, vibrating sensor is real
When detect the vibration signal of boring bar, and the vibration signal is sent to controller, controller is after vibration signal is received, to resistance
The damped coefficient of Buddhist nun's device is adjusted, and then by the amplitude controlling of boring bar in normal range (NR).
Damper is broadly divided into squeeze film damper, electricity used by the existing active vibration damping boring bar based on damper
Rheology fluid damper and magnetic rheological liquid damper, these active vibration damping boring bars are primarily present problems with：
For the active vibration damping boring bar based on squeeze film damper：When squeeze film damper rotor reality not
When aequum exceedes its critical amount of unbalance, rotor will occur asynchronous whirling motion and show bistable characteristic, and then cause to squeeze
Film damper failure is pressed, even aggravates boring vibration of bar.
Active for the active vibration damping boring bar based on current liquescent damper and based on magnetic rheological liquid damper subtracts
Shake boring bar：The electro rheological fluids of current liquescent damper and the magnetic rheological body mechanism of magnetic rheological liquid damper are complex, cause boring
Bar it is complicated, manufacture difficulty is big.
The content of the invention
The present invention is easily failure or complicated, system existing for the existing active vibration damping boring bar based on damper of solution
Make the problem of difficulty is big, it is proposed that a kind of active vibration damping boring bar based on electromagnetic damper.
Active vibration damping boring bar of the present invention based on electromagnetic damper includes the body of rod 1, is set in the front end of the body of rod 1
There is cutter head 2, cutter head 2 is used for fixturing blade 3；
It is characterized in that, the damping boring bar further includes electromagnetic damper, 3-axis acceleration sensor 4 and control system；
Electromagnetic damper is arranged on the inside of the body of rod 1；
When the damping boring bar, which is used for boring, to be processed, 3-axis acceleration sensor 4 is used for the acceleration number of degrees for measuring the body of rod 1
According to, and send it to control system；
Control system is used for the damped coefficient for adjusting electromagnetic damper, until its acceleration information received reaches most
It is small.
As preferably, the damping boring bar further includes cutter head connector 5, and cutter head 2 passes through cutter head connector 5 and the body of rod
1 is fixed.
As preferably, front opening is provided with to the inside of the body of rod 1, along the axial direction of the body of rod 1 from the front end of the body of rod 1
Cavity；
Electromagnetic damper includes housing 6, end cap 7, quality module unit and electromagnet array；
Housing 6 is the hollow cylinder of front opening, and housing 6 is coaxially installed in cavity, and the openend of the two is in the same direction；
End cap 7 is installed on the openend of housing 6, and supporting rod 8, supporting rod 8 and bar are installed with the rear end face of end cap 7
Body 1 is coaxial, and the front end of end cap 7 is connected by cutter head connector 5 and cutter head 2；
Quality module unit includes multiple rubber blocks 9 and multiple mass blocks 10, and mass block 10 is conductor, multiple 9 edges of rubber block
The circumferential direction for supporting rod 8 is uniformly installed on supporting rod 8, and multiple mass blocks 10 are separately positioned on the remote branch of multiple rubber blocks 9
On one end of strut 8；
Electromagnet array includes multiple electromagnet, and the iron core 11 of electromagnet is cylinder, the iron core 11 of multiple electromagnet
First end be arranged on the rear end face of end cap 7 or it is interior be located on the rear end face of housing 6, the of the iron core 11 of multiple electromagnet
Two ends respectively with multiple mass blocks 10 in the axial direction of the body of rod 1 it is opposite, the polar orientation of multiple electromagnet is identical.
As preferably, front opening is provided with to the inside of the body of rod 1, along the axial direction of the body of rod 1 from the front end of the body of rod 1
Cavity；
Electromagnetic damper includes housing 6, end cap 7, quality module unit, the first electromagnet array and the second electromagnet array；
Housing 6 is the hollow cylinder of front opening, and housing 6 is coaxially installed in cavity, and the openend of the two is in the same direction；
End cap 7 is installed on the openend of housing 6, and supporting rod 8, supporting rod 8 and bar are installed with the rear end face of end cap 7
Body 1 is coaxial, and the front end of end cap 7 is connected by cutter head connector 5 and cutter head 2；
Quality module unit includes multiple rubber blocks 9 and multiple mass blocks 10, and mass block 10 is conductor, multiple 9 edges of rubber block
The circumferential direction for supporting rod 8 is uniformly installed on supporting rod 8, and multiple mass blocks 10 are separately positioned on the remote branch of multiple rubber blocks 9
On one end of strut 8；
Each electromagnet array includes multiple electromagnet, and the iron core 11 of electromagnet is cylinder, the first electromagnet array
The first ends of iron core of multiple electromagnet be arranged on the rear end face of end cap 7, multiple electromagnet of the first electromagnet array
Iron core second end respectively with multiple mass blocks 9 in the axial direction of the body of rod it is opposite；
The first end of the iron core of multiple electromagnet of second electromagnet array is interior to be located on the rear end face of housing 6, and second
The second end of the iron core of multiple electromagnet of electromagnet array respectively with multiple mass blocks 9 in the axial direction of the body of rod 1 it is opposite；
The polar orientation of multiple electromagnet of each electromagnet array is identical, the electromagnet and second of the first electromagnet array
The polar orientation of the electromagnet of electromagnet array is identical.
As preferably, front opening is provided with to the inside of the body of rod 1, along the axial direction of the body of rod 1 from the front end of the body of rod 1
Cavity；
Electromagnetic damper includes housing 6, end cap 7, n quality module unit and n+1 electromagnet array, n >=2；
Housing 6 is the hollow cylinder of front opening, and housing 6 is coaxially installed in cavity, and the openend of the two is in the same direction；
End cap 7 is installed on the openend of housing 6, and supporting rod 8, supporting rod 8 and bar are installed with the rear end face of end cap 7
Body 1 is coaxial, and the front end of end cap 7 is connected by cutter head connector 5 and cutter head 2；
Each quality module unit includes multiple rubber blocks 9 and multiple mass blocks 10, and mass block 10 is conductor, multiple rubber
Block 9 is uniformly installed on supporting rod 8 along the circumferential direction of supporting rod 8, and multiple mass blocks 10 are separately positioned on the remote of multiple rubber blocks 9
On one end from supporting rod 8；
The mass module unit of first mass module unit~n-th is arranged on supporting rod 8 from front to back；
Each electromagnet array includes multiple electromagnet, and the iron core 11 of electromagnet is cylinder；
The first end of the iron core of multiple electromagnet of first electromagnet array is arranged on the rear end face of end cap 7, and first
The second end of the iron core of multiple electromagnet of electromagnet array respectively multiple mass blocks with the first mass module unit in the body of rod 1
It is opposite in axial direction；
The first end of the iron core of multiple electromagnet of (n+1)th electromagnet array is interior to be located on the rear end face of housing 6, n-th+
The second end of the iron core of multiple electromagnet of 1 electromagnet array respectively multiple mass blocks with the n-th mass module unit in the body of rod 1
It is opposite in axial direction；
Electromagnet array in addition to the first electromagnet array and the (n+1)th electromagnet array is separately positioned on the first mass block list
In n-1 gap of member~n-th between mass module unit, and each both ends of the iron core of multiple electromagnet of electromagnet array
Mass block 10 is relatively set with the axial direction of the body of rod 1 respectively；
The polar orientation of multiple electromagnet of each electromagnet array is identical, the pole of the electromagnet of n+1 electromagnet array
Property direction all same.
As preferably, multiple electromagnet between two adjacent quality module units pass through electromagnet stent 12
Electromagnet array is formed, electromagnet stent 12 is insulator.
As preferably, control system includes data acquisition unit 13, active control unit 14 and current control unit
15；
Data acquisition unit 13 is used to gather the acceleration information that 3-axis acceleration sensor 4 measures, and sends it to
Active control unit 14；
Active control unit 14 is used for by current control unit 15 come the size of the exciting current of regulating magnet, with reality
Now to the adjusting of the damped coefficient of electromagnetic damper, until its acceleration information received reaches minimum.
Fluted as preferably, being set on the front end face of end cap 7,3-axis acceleration sensor 4 is located in groove,
And it is installed on cutter head connector 5.
As preferably, the damping boring bar further includes the first loosely coupled transformer 16 and the second loosely coupled transformer
17, acceleration information is wirelessly transmitted to data acquisition unit by 3-axis acceleration sensor 4 by the first loosely coupled transformer 16
13；
The magnet exciting coil 18 of multiple electromagnet of electromagnetic damper is connected, and current control unit 15 is through the second loose coupling transformation
Device 17 changes the size for the electric current for flowing through magnet exciting coil 18.
As preferably, the damping boring bar further includes cooling unit, and cooling unit includes coolant output unit, the
One coolant duct 19 and the second coolant duct 20, the outer cup of quality module unit are equipped with mass block shell 21, outside mass block
Shell 21 is insulator；
The coolant input port of first coolant duct 19 is connected with the coolant output port of coolant output unit
Logical, the coolant output port of the first coolant duct 19 is after the rear end face of cavity and housing 6 is sequentially passed through and outside mass block
Shell 21 is connected, and the coolant into mass block shell 21 flows to knife after quality module unit is wrapped up through the second coolant duct 20
Point 3.
Active vibration damping boring bar of the present invention based on electromagnetic damper subtracts boring bar using electromagnetic damper
Shake, solve the problems, such as that the existing active vibration damping boring bar based on squeeze film damper easily fails.Damped with ER fluid
Device is compared with magnetic rheological liquid damper, and the structure of electromagnetic damper is relatively simple.Therefore, it is of the present invention to be based on electromagnetic damping
The active vibration damping boring bar of device solves the existing active vibration damping boring bar based on current liquescent damper and based on magnetic flow liquid
It is complicated existing for the active vibration damping boring bar of damper, the problem of manufacture difficulty is big.
Brief description of the drawings
Hereinafter by based on embodiment and refer to the attached drawing come to of the present invention based on the active of electromagnetic damper
Damping boring bar is described in more detail, wherein：
Fig. 1 is the structure diagram of the active vibration damping boring bar based on electromagnetic damper described in embodiment；
Fig. 2 is the functional block diagram of the active vibration damping boring bar based on electromagnetic damper described in embodiment；
Fig. 3 is the structure diagram for the electromagnetic damper that embodiment refers to, wherein, N is N poles, and S is S poles；
Fig. 4 is the A direction views of the line A-A section of the active vibration damping boring bar based on electromagnetic damper described in embodiment；
Fig. 5 is the structure diagram for the cutter head connector that embodiment refers to；
Fig. 6 is the structure diagram of the end cap that embodiment refers to and supporting rod；
Fig. 7 is the structure diagram for the electromagnet stent that embodiment refers to.
Embodiment
The active vibration damping boring bar of the present invention based on electromagnetic damper is further illustrated below in conjunction with attached drawing.
Embodiment：The present embodiment is explained with reference to Fig. 1~Fig. 7.
The active vibration damping boring bar based on electromagnetic damper described in the present embodiment includes the body of rod 1, is set in the front end of the body of rod 1
Cutter head 2 is equipped with, cutter head 2 is used for fixturing blade 3；
The damping boring bar further includes electromagnetic damper, 3-axis acceleration sensor 4 and control system；
Electromagnetic damper is arranged on the inside of the body of rod 1；
When the damping boring bar, which is used for boring, to be processed, 3-axis acceleration sensor 4 is used for the acceleration number of degrees for measuring the body of rod 1
According to, and send it to control system；
Control system is used for the damped coefficient for adjusting electromagnetic damper, until its acceleration information received reaches most
It is small.
The active vibration damping boring bar based on electromagnetic damper described in the present embodiment further includes cutter head connector 5, and cutter head 2 is logical
Cross cutter head connector 5 and the body of rod 1 is fixed.
In the present embodiment, from the front end of the body of rod 1 front opening is provided with to the inside of the body of rod 1, along the axial direction of the body of rod 1
Cavity；
Electromagnetic damper includes housing 6,7, two quality module units of end cap and three electromagnet arrays；
Housing 6 is the hollow cylinder of front opening, and housing 6 is coaxially installed in cavity, and the openend of the two is in the same direction, end
Lid 7 is installed on the openend of housing 6, and supporting rod 8 is installed with the rear end face of end cap 7, and supporting rod 8 and the body of rod 1 are coaxial, end
The front end of lid 7 is connected by cutter head connector 5 and cutter head 2；
Each quality module unit includes six rubber blocks 9 and six mass blocks 10, and mass block 10 is conductor, six rubber
Block 9 is uniformly installed on supporting rod 8 along the circumferential direction of supporting rod 8, and six mass blocks 10 are separately positioned on the remote of six rubber blocks 9
On one end from supporting rod 8；
First mass module unit and the second mass module unit are arranged on supporting rod 8 from front to back；
Each electromagnet array includes six electromagnet, and the iron core of electromagnet is cylinder；
The first end of the iron core of six electromagnet of the first electromagnet array is arranged on the rear end face of end cap 7, and first
The second end of the iron core of six electromagnet of electromagnet array respectively six mass blocks with the first mass module unit in the body of rod 1
It is opposite in axial direction；
The first end of the iron core of six electromagnet of the 3rd electromagnet array is interior to be located on the rear end face of housing 6, and the 3rd
The second end of the iron core of six electromagnet of electromagnet array respectively six mass blocks with the second mass module unit in the body of rod 1
It is opposite in axial direction；
Second electromagnet array is arranged between the first mass module unit and the second mass module unit, the second electromagnet array
Electromagnet iron core both ends in the axial direction of the body of rod 1 mass block and the second mass block list with the first mass module unit respectively
The mass block of member is opposite；
The polar orientation of six electromagnet of each electromagnet array is identical, the polarity of the electromagnet of three electromagnet arrays
Direction all same.
The second electromagnet array of the present embodiment is arranged on electromagnet stent 12, and electromagnet stent 12 is insulator.
The control system of the present embodiment includes data acquisition unit 13, active control unit 14 and current control unit 15；
Data acquisition unit 13 is used to gather the acceleration information that 3-axis acceleration sensor 4 measures, and sends it to
Active control unit 14；
Active control unit 14 is used for by current control unit 15 come the size of the exciting current of regulating magnet, with reality
Now to the adjusting of the damped coefficient of electromagnetic damper, until its acceleration information received reaches minimum.
Set fluted on the front end face of the end cap 7 of the present embodiment, 3-axis acceleration sensor 4 is located in groove, and
It is installed on cutter head connector 5.
The active vibration damping boring bar based on electromagnetic damper described in the present embodiment further includes the first loosely coupled transformer 16
It is by the first loosely coupled transformer 16 that acceleration information is wireless with the second loosely coupled transformer 17,3-axis acceleration sensor 4
It is transmitted to data acquisition unit 13；
The magnet exciting coil 18 of multiple electromagnet of electromagnetic damper is connected, and current control unit 15 is through the second loose coupling transformation
Device 17 changes the size for the electric current for flowing through magnet exciting coil 18.
The active vibration damping boring bar based on electromagnetic damper described in the present embodiment further includes cooling unit, cooling unit bag
Include coolant output unit, the first coolant duct 19, the second coolant duct 20 and the 3rd coolant duct 22, the first mass
The outer cup of module unit and the second mass module unit is equipped with mass block shell 21, and mass block shell 21 is insulator；
The coolant input port of first coolant duct 19 is connected with the coolant output port of coolant output unit
It is logical, the coolant output port of the first coolant duct 19 after the rear end face of cavity and housing 6 is sequentially passed through, with the second mass
The mass block shell of module unit is connected, and the mass block shell of the second mass module unit passes through the 3rd coolant duct 22 and first
The mass block shell of quality module unit is connected；
Into the second mass module unit mass block shell coolant after the second mass module unit is wrapped up it is cold through the 3rd
But liquid pipe road 22 enters the mass block shell of the first mass module unit, through the second coolant pipe after the first mass module unit is wrapped up
Road 20 flows to point of a knife 3.
The active vibration damping boring bar based on electromagnetic damper described in the present embodiment be based on electromagnetic damping principle to itself into
Row vibration damping：Electromagnetic damping refers to that when conductor moves in magnetic field sensing electric current can make conductor be subject to Ampere force, Ampere force
Direction always hinders the movement of conductor.Electromagnetic damping phenomenon comes from electromagnetic induction principle, its macroscopic appearance is：When closure conductor
When relative motion occurs with magnetic pole, electromagnetic resistance can be produced between the two, hinder relative motion.
When the active vibration damping boring bar based on electromagnetic damper is processed for boring and produces vibration, mass block 10
Vibrate and vibrate with rubber block 9, that is, conductor moves in magnetic field, and then electromagnetic damping phenomenon occurs, realize to boring bar
Vibration damping.
The electromagnetic damper, 3-axis acceleration sensor and control system cooperating of the present embodiment, to realize to boring bar
Active damping.
The active control unit 14 of the present embodiment is used for by current control unit 15 come the exciting current of regulating magnet
Size, to realize the adjusting to the damped coefficient of electromagnetic damper, until its acceleration information received reaches minimum, into
And realize the vibration damping to boring bar.
, should using the single-degree-of-freedom electromagnetic damper being made of two magnet exciting coils 18 and a mass block 10 as research object
The damped coefficient of electromagnetic damper and the relation of exciting current are：
Air-gap field intensity B between two magnet exciting coils 18cFor：
In formula, μ0For space permeability, N is the number of turn of magnet exciting coil 18, and I is exciting current intensity, and Lc is gas length；
The damped coefficient c of the electromagnetic damper is：
In formula, a is magnetic pole area, KmThe coefficient determined for 10 area of mass block and magnetic pole area ratio, t is mass block 10
Thickness, ρ be mass block 10 resistance；
Formula (1) is substituted into formula (2) to obtain：
From formula (3)：When other specification is fixed, damped coefficient c is directly proportional to exciting current intensity I.
When mass block 10 moves in magnetic field, sensing current work makes mass block 10 generate heat, in order to solve asking for fever
Topic, the active vibration damping boring bar based on electromagnetic damper described in the present embodiment solve mass block 10 by setting cooling unit
The problem of fever.The coolant of outflow electromagnetic damper flows to point of a knife through the second coolant duct 20, while realizes to blade 3
Cooling.
The active vibration damping boring bar based on electromagnetic damper described in the present embodiment is many-degrees of freedom system, based on the body of rod 1
System, electromagnetic damper are subsystem.The change of the damped coefficient of subsystem can make the vibration of main system occur to change accordingly
Become, the final control for realizing the vibration to the tip of blade 3.
The principle and simple in structure, integrated level of the active vibration damping boring bar based on electromagnetic damper described in the present embodiment
It is high, easy to control, it is easily operated, it is easy to repair.
Although the present invention is described herein with reference to specific embodiment, it should be understood that, these realities
Apply the example that example is only principles and applications.It should therefore be understood that exemplary embodiment can be permitted
More modifications, and can be designed that other arrangements, the spirit of the invention limited without departing from appended claims and
Scope.It should be understood that can be by combining different appurtenances different from the described mode of original claim
It is required that and feature specifically described herein.It will also be appreciated that it can be used at it with reference to the described feature of separate embodiments
In his embodiment.
Claims (10)
1. the active vibration damping boring bar based on electromagnetic damper, the damping boring bar includes the body of rod (1), in the front end of the body of rod (1)
Cutter head (2) is provided with, cutter head (2) is used for fixturing blade (3)；
It is characterized in that, the damping boring bar further includes electromagnetic damper, 3-axis acceleration sensor (4) and control system；
Electromagnetic damper is arranged on the inside of the body of rod (1)；
When the damping boring bar, which is used for boring, to be processed, 3-axis acceleration sensor (4) is used for the acceleration number of degrees for measuring the body of rod (1)
According to, and send it to control system；
Control system is used for the damped coefficient for adjusting electromagnetic damper, until its acceleration information received reaches minimum.
2. the active vibration damping boring bar based on electromagnetic damper as claimed in claim 1, it is characterised in that the damping boring bar
Cutter head connector (5) is further included, cutter head (2) is fixed by cutter head connector (5) and the body of rod (1).
3. the active vibration damping boring bar based on electromagnetic damper as claimed in claim 2, it is characterised in that from the body of rod (1)
Front end is provided with the cavity of front opening to the inside of the body of rod (1), along the axial direction of the body of rod (1)；
Electromagnetic damper includes housing (6), end cap (7), quality module unit and electromagnet array；
Housing (6) is the hollow cylinder of front opening, and housing (6) is coaxially installed in cavity, and the openend of the two is in the same direction；
End cap (7) is installed on the openend of housing (6), and supporting rod (8), supporting rod are installed with the rear end face of end cap (7)
(8) with the body of rod (1) coaxially, the front end of end cap (7) is connected by cutter head connector (5) and cutter head (2)；
Quality module unit includes multiple rubber blocks (9) and multiple mass blocks (10), and mass block (10) is conductor, multiple rubber blocks
(9) uniformly it is installed on supporting rod (8) along the circumferential direction of supporting rod (8), multiple mass blocks (10) are separately positioned on multiple rubber
On one end of the remote supporting rod (8) of block (9)；
Electromagnet array includes multiple electromagnet, and the iron core (11) of electromagnet is cylinder, the iron core (11) of multiple electromagnet
First end be arranged on the rear end face of end cap (7) or it is interior be located on the rear end face of housing (6), the iron core of multiple electromagnet
(11) second end respectively with multiple mass blocks (10) in the axial direction of the body of rod (1) opposite, the polar orientation phase of multiple electromagnet
Together.
4. the active vibration damping boring bar based on electromagnetic damper as claimed in claim 2, it is characterised in that from the body of rod (1)
Front end is provided with the cavity of front opening to the inside of the body of rod (1), along the axial direction of the body of rod (1)；
Electromagnetic damper includes housing (6), end cap (7), quality module unit, the first electromagnet array and the second electromagnet array；
Housing (6) is the hollow cylinder of front opening, and housing (6) is coaxially installed in cavity, and the openend of the two is in the same direction；
End cap (7) is installed on the openend of housing (6), and supporting rod (8), supporting rod are installed with the rear end face of end cap (7)
(8) with the body of rod (1) coaxially, the front end of end cap (7) is connected by cutter head connector (5) and cutter head (2)；
Quality module unit includes multiple rubber blocks (9) and multiple mass blocks (10), and mass block (10) is conductor, multiple rubber blocks
(9) uniformly it is installed on supporting rod (8) along the circumferential direction of supporting rod (8), multiple mass blocks (10) are separately positioned on multiple rubber
On one end of the remote supporting rod (8) of block (9)；
Each electromagnet array includes multiple electromagnet, and the iron core (11) of electromagnet is cylinder, the first electromagnet array
The first end of the iron core of multiple electromagnet is arranged on the rear end face of end cap (7), multiple electromagnet of the first electromagnet array
Iron core second end respectively with multiple mass blocks (9) in the axial direction of the body of rod it is opposite；
The first end of the iron core of multiple electromagnet of second electromagnet array is interior to be located on the rear end face of housing (6), the second electricity
The second end of the iron core of multiple electromagnet of magnet array respectively with multiple mass blocks (9) in the axial direction of the body of rod (1) it is opposite；
The polar orientation of multiple electromagnet of each electromagnet array is identical, the electromagnet and the second electromagnetism of the first electromagnet array
The polar orientation of the electromagnet of iron array is identical.
5. the active vibration damping boring bar based on electromagnetic damper as claimed in claim 2, it is characterised in that from the body of rod (1)
Front end is provided with the cavity of front opening to the inside of the body of rod (1), along the axial direction of the body of rod (1)；
Electromagnetic damper includes housing (6), end cap (7), n quality module unit and n+1 electromagnet array, n >=2；
Housing (6) is the hollow cylinder of front opening, and housing (6) is coaxially installed in cavity, and the openend of the two is in the same direction, end
Lid (7) is installed on the openend of housing (6), and supporting rod (8), supporting rod (8) and bar are installed with the rear end face of end cap (7)
Coaxially, the front end of end cap (7) is connected body (1) by cutter head connector (5) and cutter head (2)；
Each quality module unit includes multiple rubber blocks (9) and multiple mass blocks (10), and mass block (10) is conductor, multiple rubbers
Blob of viscose (9) is uniformly installed on supporting rod (8) along the circumferential direction of supporting rod (8), and multiple mass blocks (10) are separately positioned on multiple
On one end of the remote supporting rod (8) of rubber block (9)；
The mass module unit of first mass module unit~n-th is arranged on supporting rod (8) from front to back；
Each electromagnet array includes multiple electromagnet, and the iron core (11) of electromagnet is cylinder；
The first end of the iron core of multiple electromagnet of first electromagnet array is arranged on the rear end face of end cap (7), the first electricity
The second end of the iron core of multiple electromagnet of magnet array respectively multiple mass blocks with the first mass module unit in the body of rod (1)
It is opposite in axial direction；
The first end of the iron core of multiple electromagnet of (n+1)th electromagnet array is interior to be located on the rear end face of housing (6), and (n+1)th
The second end of the iron core of multiple electromagnet of electromagnet array respectively multiple mass blocks with the n-th mass module unit in the body of rod (1)
Axial direction on it is opposite；
Electromagnet array in addition to the first electromagnet array and the (n+1)th electromagnet array be separately positioned on the first mass module unit~
In n-1 gap between n-th mass module unit, and the both ends difference of the iron core of multiple electromagnet of each electromagnet array
Mass block (10) is relatively set with the axial direction of the body of rod (1)；
The polar orientation of multiple electromagnet of each electromagnet array is identical, the polarity side of the electromagnet of n+1 electromagnet array
To all same.
6. the active vibration damping boring bar based on electromagnetic damper as claimed in claim 5, it is characterised in that positioned at adjacent two
Multiple electromagnet between a quality module unit form electromagnet array by electromagnet stent (12), and electromagnet stent (12) is
Insulator.
7. the active vibration damping boring bar based on electromagnetic damper as described in claim 1~6 any one, it is characterised in that
Control system includes data acquisition unit (13), active control unit (14) and current control unit (15)；
Data acquisition unit (13) is used to gather the acceleration information that 3-axis acceleration sensor (4) measures, and sends it to
Active control unit (14)；
Active control unit (14) is used for by current control unit (15) come the size of the exciting current of regulating magnet, with reality
Now to the adjusting of the damped coefficient of electromagnetic damper, until its acceleration information received reaches minimum.
8. the active vibration damping boring bar based on electromagnetic damper as described in claim 3~6 any one, it is characterised in that
Set on the front end face of end cap (7) fluted, 3-axis acceleration sensor (4) is located in groove, and is installed in cutter head company
On fitting (5).
9. the active vibration damping boring bar based on electromagnetic damper as claimed in claim 8, it is characterised in that the damping boring bar
The first loosely coupled transformer (16) and the second loosely coupled transformer (17) are further included, 3-axis acceleration sensor (4) passes through first
Acceleration information is wirelessly transmitted to data acquisition unit (13) by loosely coupled transformer (16)；
Magnet exciting coil (18) series connection of multiple electromagnet of electromagnetic damper, current control unit (15) is through the second loose coupling transformation
Device (17) changes the size for the electric current for flowing through magnet exciting coil (18).
10. the active vibration damping boring bar based on electromagnetic damper as claimed in claim 9, it is characterised in that the vibration damping boring
Bar further includes cooling unit, and cooling unit includes coolant output unit, the first coolant duct (19) and the second coolant pipe
Road (20), the outer cup of quality module unit are equipped with mass block shell (21), and mass block shell (21) is insulator；
The coolant input port of first coolant duct (19) is connected with the coolant output port of coolant output unit,
The coolant output port of first coolant duct (19) is after the rear end face of cavity and housing (6) is sequentially passed through and mass block
Shell (21) is connected, into mass block shell (21) coolant after quality module unit is wrapped up through the second coolant duct
(20) point of a knife (3) is flowed to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711233795.0A CN107989958A (en) | 2017-11-29 | 2017-11-29 | Active vibration damping boring bar based on electromagnetic damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711233795.0A CN107989958A (en) | 2017-11-29 | 2017-11-29 | Active vibration damping boring bar based on electromagnetic damper |
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| Publication Number | Publication Date |
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| CN107989958A true CN107989958A (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711233795.0A Pending CN107989958A (en) | 2017-11-29 | 2017-11-29 | Active vibration damping boring bar based on electromagnetic damper |
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| CN108927538A (en) * | 2018-08-02 | 2018-12-04 | 哈尔滨理工大学 | A kind of adjustable electromagnetic damping damping boring bar |
| CN109202142A (en) * | 2018-11-23 | 2019-01-15 | 哈尔滨理工大学 | A kind of plug in milling cutter intelligent control method |
| CN111730119A (en) * | 2020-06-03 | 2020-10-02 | 北京工业大学 | Vibration reduction milling cutter based on layered stacked permanent magnet dynamic vibration absorber |
| CN112013125A (en) * | 2020-08-18 | 2020-12-01 | 沈青 | Control device of water faucet for saving water resources |
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| CN114535631A (en) * | 2022-04-01 | 2022-05-27 | 哈尔滨理工大学 | Variable-rigidity variable-damping magnetorheological fluid vibration damping boring rod |
| CN114535632A (en) * | 2022-04-01 | 2022-05-27 | 哈尔滨理工大学 | MRE-based active variable-stiffness vibration damping boring bar suitable for deep hole machining |
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| CN108927538A (en) * | 2018-08-02 | 2018-12-04 | 哈尔滨理工大学 | A kind of adjustable electromagnetic damping damping boring bar |
| CN109202142A (en) * | 2018-11-23 | 2019-01-15 | 哈尔滨理工大学 | A kind of plug in milling cutter intelligent control method |
| WO2021135174A1 (en) * | 2019-12-31 | 2021-07-08 | 中科振声（苏州）电子科技有限公司 | Modular vibration absorber, vibration absorber module, and machine tool |
| WO2021224378A1 (en) * | 2020-05-07 | 2021-11-11 | Hutchinson | Boring bar with electrodynamic actuators for counteracting vibrations and machine tool provided with such a bar |
| FR3109903A1 (en) * | 2020-05-07 | 2021-11-12 | Hutchinson | Boring bar fitted with electrodynamic actuators to counteract vibrations and machine tool fitted with such a bar. |
| CN111730119A (en) * | 2020-06-03 | 2020-10-02 | 北京工业大学 | Vibration reduction milling cutter based on layered stacked permanent magnet dynamic vibration absorber |
| CN111730119B (en) * | 2020-06-03 | 2021-11-26 | 北京工业大学 | Vibration reduction milling cutter based on layered stacked permanent magnet dynamic vibration absorber |
| CN112013125A (en) * | 2020-08-18 | 2020-12-01 | 沈青 | Control device of water faucet for saving water resources |
| IT202000031043A1 (en) * | 2020-12-16 | 2022-06-16 | Nuovo Pignone Tecnologie Srl | ACTIVE PIEZOELECTRIC TOOL, ACTIVE PIEZOELECTRIC DEVICE AND ACTIVE PIEZOELECTRIC TOOL OPERATION METHOD. |
| WO2022128150A1 (en) * | 2020-12-16 | 2022-06-23 | Nuovo Pignone Tecnologie - S.R.L. | Active piezoelectric tool, active piezoelectric device and operating method of the active piezoelectric tool |
| CN112984039A (en) * | 2021-02-24 | 2021-06-18 | 武汉理工大学 | Axial system transverse vibration large-force-value inertial type electromagnetic active control device |
| CN113145879A (en) * | 2021-04-21 | 2021-07-23 | 哈尔滨理工大学 | Damping-adjustable vibration attenuation boring bar based on excitation coil |
| CN114535631A (en) * | 2022-04-01 | 2022-05-27 | 哈尔滨理工大学 | Variable-rigidity variable-damping magnetorheological fluid vibration damping boring rod |
| CN114535632A (en) * | 2022-04-01 | 2022-05-27 | 哈尔滨理工大学 | MRE-based active variable-stiffness vibration damping boring bar suitable for deep hole machining |
| CN114535631B (en) * | 2022-04-01 | 2022-10-11 | 哈尔滨理工大学 | Variable-rigidity variable-damping magnetorheological fluid vibration damping boring rod |
| CN115055735A (en) * | 2022-07-06 | 2022-09-16 | 哈尔滨理工大学 | Variable-stiffness shock absorber with self-sensing function, shock absorption method and shock absorption boring rod |
| CN116201842A (en) * | 2023-03-07 | 2023-06-02 | 哈尔滨理工大学 | Active self-adaptive variable-rigidity shock absorber and vibration reduction boring bar |
| CN116201842B (en) * | 2023-03-07 | 2023-09-15 | 哈尔滨理工大学 | Active self-adaptive variable-rigidity shock absorber and vibration reduction boring bar |
| CN116551011A (en) * | 2023-04-21 | 2023-08-08 | 哈尔滨理工大学 | Internal driving magnetic attraction type active control vibration reduction boring bar and method |
| CN116551011B (en) * | 2023-04-21 | 2024-05-28 | 哈尔滨理工大学 | Vibration reduction method for internal driving magnetic attraction type active control vibration reduction boring bar |
| CN116673509A (en) * | 2023-05-05 | 2023-09-01 | 哈尔滨理工大学 | Vibration-damping boring bar with built-in magnetorheological elastomer |
| CN116673509B (en) * | 2023-05-05 | 2024-05-28 | 哈尔滨理工大学 | Vibration-damping boring bar with built-in magnetorheological elastomer |
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