CN108941639B - A kind of combined intelligent self-powered damping boring bar - Google Patents
A kind of combined intelligent self-powered damping boring bar Download PDFInfo
- Publication number
- CN108941639B CN108941639B CN201811075202.7A CN201811075202A CN108941639B CN 108941639 B CN108941639 B CN 108941639B CN 201811075202 A CN201811075202 A CN 201811075202A CN 108941639 B CN108941639 B CN 108941639B
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- China
- Prior art keywords
- piezoelectric ceramic
- ceramic piece
- boring bar
- controller
- mass block
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Classifications
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/108—Piezoelectric elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of combined intelligent self-powered damping boring bars, including boring bar, first piezoelectric ceramic piece, second piezoelectric ceramic piece, ER fluid, big mass block, positioning ring, small mass block, third piezoelectric ceramic piece, seal shelves ring, controller, end cap, small mass block is equipped with inside third piezoelectric ceramic piece, the ER fluid is arranged between the first piezoelectric ceramic piece and the second piezoelectric ceramic piece, big mass block is arranged inside the second piezoelectric ceramic piece, the controller is fixed on the tail portion of boring bar using end cap, the third piezoelectric ceramic piece it is interior, outer surface and controller are connected to form measure loop, the outer surface of first piezoelectric ceramic piece and the inner surface of the second piezoelectric ceramic piece and controller are connected to form confession electric control loop, controller calculates the vibrational state of boring bar according to measure loop, become to electric current is applied to Electric field on liquid is controlled, and the damping and rigidity of ER fluid are changed, and makes bump leveller work in best vibration damping state.
Description
Technical field
The present invention relates to a kind of cutters, and in particular to a kind of combined intelligent self-powered damping boring bar belongs to metal cutting
Processing technique field.
Background technique
In machining, hole machined is usually carried out by boring cutter.Boring bar is needed to have biggish major diameter in deep hole machining
Than boring bar rigidity is low at this time, cutting-vibration is easy to happen, so that the roughness of surface to be machined does not reach requirement, in order to reduce
With inhibition boring bar vibration, processed frequently with the damping boring bar with bump leveller.
Existing damping boring bar mainly includes passive type and active two major classes, and wherein passive type bump leveller can not be according to work
Condition automatically adjusts rigidity and damping, specific aim are poor；Active bump leveller generally requires the portions such as additional power source, sensor and actuator
Part, structure is complicated.
Summary of the invention
To solve the above problems, utilizing piezoelectric ceramics the invention discloses a kind of combined intelligent self-powered damping boring bar
Piezoelectric effect, acquire vibrational energy, realize that self-powered, the electric energy of generation are used to control the damping and rigidity of ER fluid, make
Bump leveller works in best vibration damping state, improves the processing quality of surface to be machined.
In order to achieve the above objectives, technical scheme is as follows:
A kind of combined intelligent self-powered damping boring bar, including boring bar, the first piezoelectric ceramic piece, the second piezoelectric ceramic piece,
ER fluid, big mass block, positioning ring, small mass block, third piezoelectric ceramic piece, sealing shelves ring, controller, end cap, it is described
The head of boring bar is arranged in third piezoelectric ceramic piece, and positioning is arranged between third piezoelectric ceramic piece and the first piezoelectric ceramic piece
Ring, third piezoelectric ceramic piece inside are equipped with small mass block, are equipped with the second piezoelectric ceramic piece, the electricity inside the first piezoelectric ceramic piece
Rheology liquid is arranged between the first piezoelectric ceramic piece and the second piezoelectric ceramic piece, and ER fluid both ends are equipped with sealing shelves ring, described
Big mass block is arranged inside the second piezoelectric ceramic piece, and cavity is equipped with inside big mass block, and the controller is fixed using end cap
In the tail portion of boring bar, the inner and outer surfaces and controller of the third piezoelectric ceramic piece are connected to form measure loop, first pressure
The inner surface of the outer surface of electroceramics piece and the second piezoelectric ceramic piece and controller are connected to form confession electric control loop.
When cutting-vibration occurs for boring bar, small mass block is first driven to vibrate, pressure is generated to third piezoelectric ceramic piece, due to pressure
Electrical effect has voltage output between the inner and outer surfaces of third piezoelectric ceramic piece, by the inner and outer surfaces of third piezoelectric ceramic piece
It is connected to form measure loop with controller, the voltage swing that controller can be received according to measure loop calculates the vibration of boring bar
Dynamic state.
When cutting-vibration occurs for boring bar, big mass block is driven to vibrate, to the first piezoelectric ceramic piece and the second piezoelectric ceramic piece
Generate pressure simultaneously, due to piezoelectric effect, the first piezoelectric ceramic piece, the second piezoelectric ceramic piece inner and outer surfaces between have electricity
Pressure output, is respectively formed two independent current sources, by the inner surface of the outer surface of the first piezoelectric ceramic piece and the second piezoelectric ceramic piece
It is connected to form confession electric control loop with controller, confession electric control loop is pressed in the inner surface of the first piezoelectric ceramic piece and second
Electric field action is formed between the outer surface of electroceramics piece in ER fluid.
The vibrational state for the boring bar that controller is calculated according to measure loop changes electric field of the load on ER fluid
Intensity, and then change the damping and rigidity of ER fluid, make bump leveller work in best vibration damping state.
The beneficial effects of the present invention are:
(1) controller can calculate the vibration of boring bar according to the size that third piezoelectric ceramic piece produces electricl energy on measure loop
Dynamic state, is not necessarily to external sensor, and structure is simple.
The electric energy that (2) first piezoelectric ceramic pieces and the second piezoelectric ceramic piece generate be used to control load on ER fluid
Electric field, realize the self-powered inside boring bar, be not necessarily to external power supply.
(3) controller can pointedly control electric current according to the vibrational state for the boring bar being calculated on measure loop
The damping and rigidity for becoming liquid make bump leveller work in best vibration damping state.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is circuit diagram.
Reference signs list:
1. boring bar；2. the first piezoelectric ceramic piece；3. the second piezoelectric ceramic piece；4. ER fluid；5. big mass block；
6. positioning ring；7. small mass block；8. third piezoelectric ceramic piece；9 sealing shelves rings；10 controllers；11. end cap.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.It should be noted that word " preceding " used in the following description,
" rear ", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to direction or remote
Direction from geometric center of specific component.
As shown in Figure 1, a kind of combined intelligent self-powered damping boring bar of the present invention, including boring bar 1, the first piezoelectricity
Potsherd 2, the second piezoelectric ceramic piece 3, ER fluid 4, big mass block 5, positioning ring 6, small mass block 7, third piezoelectric ceramics
Piece 8, sealing shelves ring 9, controller 10, end cap 11；First piezoelectric ceramic piece 2, the second piezoelectric ceramic piece 3, ER fluid 4,
Big mass block 5, positioning ring 6, small mass block 7, third piezoelectric ceramic piece 8, sealing shelves ring 9 are hollow tubular.
The ER fluid 4 is arranged between the first piezoelectric ceramic piece 2 and the second piezoelectric ceramic piece 3, utilizes in axial direction
Sealing shelves ring 9 is sealed；First piezoelectric ceramic piece 2 and third piezoelectric ceramic piece 8 utilize positioning ring 6 in the axial direction
It is positioned；The controller 10 is fixed on the tail portion of boring bar 1 using end cap 11.
Pressure is generated to third piezoelectric ceramic piece 8 when the small mass block 7 vibrates, due to piezoelectric effect, such as Fig. 2 institute
Show there is voltage output between the inner and outer surfaces of third piezoelectric ceramic piece 8, by the inner and outer surfaces of third piezoelectric ceramic piece 8 with
Controller 10 is connected to form measure loop, and the voltage swing that controller can be received according to measure loop calculates boring bar 1
Vibrational state.
Pressure is generated simultaneously to the first piezoelectric ceramic piece 2 and the second piezoelectric ceramic piece 3 when the big mass block 5 vibrates,
Due to piezoelectric effect, as shown in Fig. 2, the first piezoelectric ceramic piece 2, the second piezoelectric ceramic piece 3 inner and outer surfaces between have voltage
Output, is respectively formed two independent current sources, by the inner surface of the outer surface of the first piezoelectric ceramic piece 2 and the second piezoelectric ceramic piece 3
Confession electric control loop is connected to form with controller 10, and confession electric control loop is in the inner surface of the first piezoelectric ceramic piece 2 and the
Electric field action is formed between the outer surface of two piezoelectric ceramic pieces 3 in ER fluid 4, controller 10 is calculated according to measure loop
Boring bar 1 vibrational state, change electric field strength of the load on ER fluid 4, and then change the damping and just of ER fluid 4
Degree makes bump leveller work in best vibration damping state.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.
Claims (2)
1. a kind of combined intelligent self-powered damping boring bar, it is characterised in that: including boring bar, the first piezoelectric ceramic piece, the second pressure
Electroceramics piece, ER fluid, big mass block, positioning ring, small mass block, third piezoelectric ceramic piece, sealing shelves ring, controller,
End cap, the third piezoelectric ceramic piece are arranged in the head of boring bar, set between third piezoelectric ceramic piece and the first piezoelectric ceramic piece
Positioning ring is set, small mass block is equipped with inside third piezoelectric ceramic piece, is equipped with the second piezoelectric ceramics inside the first piezoelectric ceramic piece
Piece, the ER fluid are arranged between the first piezoelectric ceramic piece and the second piezoelectric ceramic piece, and ER fluid both ends are equipped with sealing
Shelves ring, the big mass block are arranged inside the second piezoelectric ceramic piece, and cavity is equipped with inside big mass block, and the controller utilizes
End cap is fixed on the tail portion of boring bar, and the inner and outer surfaces and controller of the third piezoelectric ceramic piece are connected to form measure loop, institute
It states the outer surface of the first piezoelectric ceramic piece and the inner surface of the second piezoelectric ceramic piece and controller is connected to form confession electric control and returns
Road.
2. a kind of operating method of combined intelligent self-powered damping boring bar according to claim 1, it is characterised in that: control
Device processed calculates the vibrational state of boring bar according to measure loop, controls the electric field being applied on ER fluid, changes electricity
The damping and rigidity of rheology liquid make bump leveller work in best vibration damping state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075202.7A CN108941639B (en) | 2018-09-14 | 2018-09-14 | A kind of combined intelligent self-powered damping boring bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075202.7A CN108941639B (en) | 2018-09-14 | 2018-09-14 | A kind of combined intelligent self-powered damping boring bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108941639A CN108941639A (en) | 2018-12-07 |
| CN108941639B true CN108941639B (en) | 2019-11-26 |
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| CN201811075202.7A Active CN108941639B (en) | 2018-09-14 | 2018-09-14 | A kind of combined intelligent self-powered damping boring bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4063050A1 (en) * | 2021-03-23 | 2022-09-28 | Korea Institute of Machinery & Materials | Deep hole drilling system with three-dimensional vibration damping function using tool stiffness control |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145879B (en) * | 2021-04-21 | 2022-11-18 | 哈尔滨理工大学 | Damping-adjustable vibration attenuation boring bar based on excitation coil |
| CN113182544A (en) * | 2021-04-26 | 2021-07-30 | 哈尔滨理工大学 | Vibration reduction cutter bar for turning large-pitch threads |
| CN114042960A (en) * | 2021-12-03 | 2022-02-15 | 湖南江滨机器（集团）有限责任公司 | Piston pin hole machining device and machining method thereof |
| 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 |
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|---|---|---|---|---|
| GB1029675A (en) * | 1962-08-23 | 1966-05-18 | Richards & Co Ltd George | Vibration absorbing device for machine tools |
| US3559512A (en) * | 1969-06-27 | 1971-02-02 | Cincinnati Milling Machine Co | Series vibration damper |
| CN1448643A (en) * | 2003-04-03 | 2003-10-15 | 浙江大学 | Intelligent torsion control lever based on tile shape piezo-electric sheets |
| CN1540181A (en) * | 2003-10-29 | 2004-10-27 | 北京工业大学 | Bielectrode composite structural piece in use for current liquescent |
| DE112006000418T5 (en) * | 2005-02-19 | 2008-01-10 | General Motors Global Technology Operations, Inc., Detroit | If necessary morphable body moldings and surfaces of motor vehicles |
| CN106363198A (en) * | 2016-11-07 | 2017-02-01 | 东南大学 | Dynamic vibration attenuation boring tool |
| CN207848290U (en) * | 2018-02-02 | 2018-09-11 | 华东交通大学 | It is a kind of that damper is pressed using the ER fluid of piezoelectric material and magnetostriction materials |
-
2018
- 2018-09-14 CN CN201811075202.7A patent/CN108941639B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1029675A (en) * | 1962-08-23 | 1966-05-18 | Richards & Co Ltd George | Vibration absorbing device for machine tools |
| US3559512A (en) * | 1969-06-27 | 1971-02-02 | Cincinnati Milling Machine Co | Series vibration damper |
| CN1448643A (en) * | 2003-04-03 | 2003-10-15 | 浙江大学 | Intelligent torsion control lever based on tile shape piezo-electric sheets |
| CN1540181A (en) * | 2003-10-29 | 2004-10-27 | 北京工业大学 | Bielectrode composite structural piece in use for current liquescent |
| DE112006000418T5 (en) * | 2005-02-19 | 2008-01-10 | General Motors Global Technology Operations, Inc., Detroit | If necessary morphable body moldings and surfaces of motor vehicles |
| CN106363198A (en) * | 2016-11-07 | 2017-02-01 | 东南大学 | Dynamic vibration attenuation boring tool |
| CN207848290U (en) * | 2018-02-02 | 2018-09-11 | 华东交通大学 | It is a kind of that damper is pressed using the ER fluid of piezoelectric material and magnetostriction materials |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4063050A1 (en) * | 2021-03-23 | 2022-09-28 | Korea Institute of Machinery & Materials | Deep hole drilling system with three-dimensional vibration damping function using tool stiffness control |
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| CN108941639A (en) | 2018-12-07 |
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