CN110186597A - A kind of dynamometer structure of side arrangement piezoelectric transducer - Google Patents
A kind of dynamometer structure of side arrangement piezoelectric transducer Download PDFInfo
- Publication number
- CN110186597A CN110186597A CN201910398048.5A CN201910398048A CN110186597A CN 110186597 A CN110186597 A CN 110186597A CN 201910398048 A CN201910398048 A CN 201910398048A CN 110186597 A CN110186597 A CN 110186597A
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- China
- Prior art keywords
- piezoelectric transducer
- support frame
- dynamometer
- workbench matrix
- force measuring
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- 239000011159 matrix material Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 10
- 230000036316 preload Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 17
- 238000005259 measurement Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000003801 milling Methods 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention belongs to sense measurement and control area, a kind of dynamometer structure of side arrangement piezoelectric transducer is provided, dynamic three axis force measures suitable for milling, drilling cutting process.This dynamometer structure includes side band workbench matrix, support frame, signal output plug, piezoelectric transducer, pretension bolt, seal cap sealing lid, conducting wire output threaded hole, support frame fixing screwed hole and seal washer.The Reentrant Cavity for processing and accommodating sensor is surveyed in support frame, it is intracavitary that sensor is sealed in type when installation, makes compact-sized, reduces the environmental disturbances such as humidity, dust.Bottom is hanging when band workbench matrix installation, and band workbench baseline top is higher than support frame, increases dynamometer use scope.This structure uses four piezoelectric transducers, four sensors are arranged symmetrically in band workbench matrix side two-by-two, the firmly beforehand means that sensor uses respective pretension bolt individually to pre-tighten, this dynamometer structure measure main Xiang Li by sensor shearing effect, it is main to sensitivity to increase dynamometer.
Description
Technical field
The invention belongs to sense observation and control technology field, it is related to the survey in a kind of machining based on piezoelectricity mechanism to cutting force
Structure is tried, this structure is suitable for the accurate measurement of drilling and the multidirectional cutting force of Milling Process dynamic.
Background technique
Cutting force is the important physical amount in cutting process, and the research of cutting force is calculated cutting scheme is further clarified
Power consumption designs cutting element, and machine tool fixture selects cutting parameter, and optimization tool geometrical parameter etc. is of great significance.With existing
Develop for machining towards high speed high-rate cutting, precision and ultra-precision machining, higher want also proposed to the monitoring of cutting force
It asks.The cutting force of especially difficult-to-machine material is larger and vibration frequency is very fast, requires its cutting force measurement more stringent.
The research of domestic cutting dynamometer, dividing from measuring principle mainly has strain-type and piezoelectric type etc..Strain-type is surveyed
Power instrument has high sensitivity, and precision is high, has good static characteristic, but the variation of machining active force is fast, strain-type
Dynamometer poor dynamic.The piezoelectricity that piezoelectric quartz force sensor has rigidity height, good linearity, temperature stability good, designed
Dynamometer intrinsic frequency with higher under certain additional mass is suitble to the measurement of cutting dynamic force.
For piezoelectric type dynamometer using more and more extensive, structure type is also varied.There are commonly cutter holder type three-way piezoelectrics
Turning dynamometer, top formula piezoelectric force instrument and the 4 points of arrangement piezoelectric force instrument of square generally used.Wherein cutter holder type
The three axis force of the workpiece rotary types machinings such as measurement turning, boring, the dynamometry of 4 points of arrangements of square are commonly used to top formula
Instrument is commonly used to dynamic cutting force in measurement milling and drilling process.
Piezoelectric force structure of the present invention is symmetrically arranged vertically at band workbench using four three-way piezoelectric sensors two-by-two
The two sides of matrix, main Xiang Li is measured by the full shearing effect of sensor, and lateral force is surveyed by pulling and pressed effect and shearing effect
It measures.Dynamometer it is main have to power measurement sensitivity improve significantly.
Summary of the invention
The method of the present invention uses the vertical arrangement of piezoelectric transducer, and four three-way piezoelectric sensors are arranged symmetrically two-by-two
It is main to be measured to power by sensor shearing effect in cuboid band two long sides of workbench matrix, it increases main to power measurement spirit
Sensitivity；Spill cavity configuration is arranged in support plate, and dynamometer is placed in Reentrant Cavity, structural compactness is increased, increases entirety
Intrinsic frequency, the measurement suitable for drilling and Milling Force.
Technical solution of the present invention:
A kind of force measuring structure of piezoelectric transducer lateral arrangement form, including band workbench matrix 1, support frame 2, signal are defeated
Outlet 3, piezoelectric transducer 4 and pre-loading screw 5；
The band workbench matrix 1, upper surface are arranged symmetrically 8 threaded holes, are carried out by bolt and measured workpiece
It is connected and fixed；Two sides with workbench matrix 1 process two threaded holes respectively, are passed by the fixed piezoelectricity that pre-tightens of pretension bolt 5
Sensor 4 and support frame 2；
The support frame 2 processes type chamber in one side, and piezoelectric transducer 4 is installed on wherein；On support frame 2,
A platform is arranged in the corresponding position of piezoelectric transducer 4, and processes two ladder holes in its side, is used for support frame 2
With the fixed preload of piezoelectric transducer 4 in band 1 side of workbench matrix；
The piezoelectric transducer 4, is arranged symmetrically in the opposite side with workbench matrix 1 two-by-two by totally four；Piezoelectric transducer
4 inside is made of three pairs of brilliant groups, and the type for being placed on support frame 2 is intracavitary, is fixed by passing through the bolt of trapezoidal hole of support frame 2
In the side with workbench matrix 1；It is independent using the respective pretension bolt of each piezoelectric transducer 4 when piezoelectric transducer 4 pre-tightens
Firmly beforehand means symmetrically apply identical pretightning force；Electric signal is converted by force signal after 4 stress of piezoelectric transducer, outside
For three leads as signal output end 3, lead direction is staggered relatively two-by-two.
9 mounting groove of seal washer is set inside the support frame 2, for placing seal washer 9, increases dynamometer structure
Leakproofness.
It is equipped with conducting wire at the type chamber of the support frame 2 and exports threaded hole 7, end face is equipped with support plate fixing screwed hole thereon
8。
Sealing cover 6 is equipped with outside the pre-loading screw 5.
Beneficial effects of the present invention: the present invention devises a kind of novel sensor arrangement structure, using four sensors
It is symmetrically arranged vertically at two opposite sides of platform two-by-two, measures main Xiang Li by passing shearing effect, increases dynamometer
Main to sensitivity, raising is main to power measurement accuracy, and lateral bolster fagging uses packaging type structure, has increased the whole rigid of dynamometer
Degree, increases intrinsic frequency.The influence of the environment such as humidity and dust is reduced, so that compact-sized.
Detailed description of the invention
Fig. 1 is dynamometer structure scheme of installation of the present invention.
Fig. 2 is support frame of the invention.
Fig. 3 is overall schematic after installation of the invention.
In figure: 1 band workbench matrix；2 support frames；3 signal output ends；4 piezoelectric transducers；5 pretension bolts；6 sealing covers；
7 conducting wires export threaded hole；8 support frame fixing screwed holes；9 seal washers.
Specific embodiment
Below in conjunction with attached drawing and technical solution, a specific embodiment of the invention is further illustrated.
Piezoelectric transducer 4 is installed on the corresponding position in 2 inside of support frame first, passes through support frame using pre-loading screw 5
2, it is then passed through piezoelectric transducer 4 and is fixed in band 1 side of workbench matrix, the output end of piezoelectric transducer 4 is put in opposite directions two-by-two
It sets.3 precession conducting wire of signal output end exports threaded hole 7, and output line exports threaded hole 7 by 2 conducting wire of support frame and signal is defeated
Outlet 3 is connect with data charge amplifier.
Since piezoelectric transducer 4 requires chip peak response direction parallel with unidirectional force direction, if piezoelectric transducer 4
Deviate during installation, the output in certain direction is not just the size for the power that the direction is applied, while will appear it is biggish to
Between interfere.In order to reduce rigging error, this dynamometer structure accommodates the intracavitary corresponding position of type of piezoelectric transducer 4 in support frame 2
One boss is set, for the position of piezoelectric transducer 4 is accurately positioned.
Time outer edge processes an annular groove in support frame 2, for placing seal washer 9, increases dynamometer structure
Leakproofness reduces ambient humidity and dust interference, dynamometer structure is stablized in cutting fluid or under chip environment
It uses, increases the use scope of dynamometer structure.
The pretightning force of the piezoelectric transducer 4 of this dynamometer structure uses independent tools for bolts ' pretension mode, each piezoelectric transducer 4
It is pre-tightened respectively by respective pretension bolt 5.Applied when applying pretightning force using symmetrical, guarantees each 4 institute of piezoelectric transducer
It is identical by pretightning force, eliminate the otherness between each 4 sensitivity of piezoelectric transducer.
Then by the support frame fixing screwed hole 8 on support frame 2, drilling machine or milling machine will be integrally attached to using bolt
On workbench.Band 1 bottom of workbench matrix is hanging, and top is higher by frame 2 supported on both sides, so that the cutting of the big workpiece of dynamometer measurement
The measurement of power, increases the scope of application.
Mechanical signal is converted to electric signal, by charge in use, power passes to dynamometer structure by this dynamometer structure
Amplifier is converted into voltage signal and amplifies, and by data collecting card, finally shows on computers.
Claims (5)
1. a kind of force measuring structure of piezoelectric transducer lateral arrangement form, which is characterized in that the force measuring machine includes band workbench
Matrix (1), support frame (2), signal output end (3), piezoelectric transducer (4) and pre-loading screw (5)；
Band workbench matrix (1), upper surface is arranged symmetrically 8 threaded holes, is connected by bolt and measured workpiece
Connect fixation；Two sides with workbench matrix (1) process two threaded holes respectively, are passed by the fixed piezoelectricity that pre-tightens of pretension bolt 5
Sensor (4) and support frame (2)；
The support frame (2) processes type chamber in one side, and piezoelectric transducer (4) is installed on wherein；In support frame (2)
A platform is arranged in upper, piezoelectric transducer (4) corresponding position, and processes two ladder holes in its side, for that will prop up
Support (2) and the fixed preload of piezoelectric transducer (4) are in band workbench matrix (1) side；
The piezoelectric transducer (4), is arranged symmetrically in the opposite side with workbench matrix (1) two-by-two by totally four；Piezoelectric transducer
(4) inside is made of three pairs of brilliant groups, and the type for being placed on support frame (2) is intracavitary, the spiral shell of the trapezoidal hole by passing through support frame (2)
Bolt is fixed on the side with workbench matrix (1)；It is respective using each piezoelectric transducer (4) when piezoelectric transducer (4) pre-tightens
The independent firmly beforehand means of pretension bolt, symmetrically apply identical pretightning force；Electricity is converted by force signal after piezoelectric transducer (4) stress
Signal, outside three leads as signal output end (3), lead direction is staggered relatively two-by-two.
2. force measuring structure according to claim 1, which is characterized in that seal washer is arranged inside the support frame (2)
(9) mounting groove increases the leakproofness of dynamometer structure for placing seal washer (9).
3. force measuring structure according to claim 1 or 2, which is characterized in that be equipped with and lead at the type chamber of the support frame (2)
Line exports threaded hole (7), and end face is equipped with support plate fixing screwed hole (8) thereon.
4. force measuring structure according to claim 1 or 2, which is characterized in that be equipped with sealing outside the pre-loading screw (5)
It covers (6).
5. force measuring structure according to claim 3, which is characterized in that be equipped with sealing cover outside the pre-loading screw (5)
(6)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398048.5A CN110186597A (en) | 2019-05-14 | 2019-05-14 | A kind of dynamometer structure of side arrangement piezoelectric transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398048.5A CN110186597A (en) | 2019-05-14 | 2019-05-14 | A kind of dynamometer structure of side arrangement piezoelectric transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110186597A true CN110186597A (en) | 2019-08-30 |
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ID=67716185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910398048.5A Pending CN110186597A (en) | 2019-05-14 | 2019-05-14 | A kind of dynamometer structure of side arrangement piezoelectric transducer |
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| Country | Link |
|---|---|
| CN (1) | CN110186597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237578A (en) * | 2021-05-08 | 2021-08-10 | 大连理工大学 | Multi-dimensional force/moment measuring method based on full-shear effect quartz wafer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5821432A (en) * | 1996-05-09 | 1998-10-13 | K.K. Holding Ag | Force and /or moment measuring device |
| CN1261662A (en) * | 1999-01-20 | 2000-08-02 | 大连理工大学 | Integrated piezoelectric-quartz three-way milling, grinding and cutting dinamometric instrument |
| CN104977104A (en) * | 2015-07-13 | 2015-10-14 | 大连理工大学 | Piezoelectric small-range large-range ratio force-measuring device |
| CN106441675A (en) * | 2016-11-08 | 2017-02-22 | 烟台职业学院 | Non-load-sharing piezoelectric thrust test device |
| CN108351266A (en) * | 2015-09-04 | 2018-07-31 | 基斯特勒控股公司 | Device for power detection and moment inspecting |
| CN109282922A (en) * | 2018-11-15 | 2019-01-29 | 大连理工大学 | A kind of piezoelectricity drilling dynamometer based on sensor cross Unequal distance arrangement |
-
2019
- 2019-05-14 CN CN201910398048.5A patent/CN110186597A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5821432A (en) * | 1996-05-09 | 1998-10-13 | K.K. Holding Ag | Force and /or moment measuring device |
| CN1261662A (en) * | 1999-01-20 | 2000-08-02 | 大连理工大学 | Integrated piezoelectric-quartz three-way milling, grinding and cutting dinamometric instrument |
| CN104977104A (en) * | 2015-07-13 | 2015-10-14 | 大连理工大学 | Piezoelectric small-range large-range ratio force-measuring device |
| CN108351266A (en) * | 2015-09-04 | 2018-07-31 | 基斯特勒控股公司 | Device for power detection and moment inspecting |
| CN106441675A (en) * | 2016-11-08 | 2017-02-22 | 烟台职业学院 | Non-load-sharing piezoelectric thrust test device |
| CN109282922A (en) * | 2018-11-15 | 2019-01-29 | 大连理工大学 | A kind of piezoelectricity drilling dynamometer based on sensor cross Unequal distance arrangement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237578A (en) * | 2021-05-08 | 2021-08-10 | 大连理工大学 | Multi-dimensional force/moment measuring method based on full-shear effect quartz wafer |
| CN113237578B (en) * | 2021-05-08 | 2022-09-30 | 大连理工大学 | Multi-dimensional force/moment measuring method based on full-shear effect quartz wafer |
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Application publication date: 20190830 |
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| RJ01 | Rejection of invention patent application after publication |