CN105973624B - A kind of high frequency loading device that loading force can be adjusted in real time and be measured - Google Patents
A kind of high frequency loading device that loading force can be adjusted in real time and be measured Download PDFInfo
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- CN105973624B CN105973624B CN201610286078.3A CN201610286078A CN105973624B CN 105973624 B CN105973624 B CN 105973624B CN 201610286078 A CN201610286078 A CN 201610286078A CN 105973624 B CN105973624 B CN 105973624B
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- fixed plate
- piezoelectric ceramics
- pressure sensor
- disc spring
- front shoe
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to a kind of loading forces can adjust the high frequency loading device with measurement in real time, it include: firm banking, the linear guide of two spaced and parallel settings on the fixed base, the piezoelectric ceramics rear fixed plate and piezoelectric ceramics front shoe being slidably sleeved in two linear guides, piezoelectric ceramics, disc spring fixed plate positioned at the front of piezoelectric ceramics front shoe, the disc spring being mounted between disc spring fixed plate and piezoelectric ceramics front shoe, it is fastenedly connected the pressure sensor rear fixed plate in the front side of disc spring fixed plate, it is fastenedly connected the pressure sensor in the front side of pressure sensor rear fixed plate, with the pressure sensor front shoe being fastenedly connected on front side of pressure sensor, it is fastenedly connected the loading head in the front side of pressure sensor front shoe, and two spring between pressure sensor front shoe and firm banking；Wherein, the rear end of two linear guides is provided with external screw thread, and every linear guide passes through external screw thread two fixture nuts of mating connection and two locking nuts.
Description
Technical field
The present invention relates to a kind of loading forces can adjust the high frequency loading device with measurement in real time, belongs to Machine Manufacturing Technology neck
Domain.
Background technique
In the performance test stage of mechanical equipment, it is often necessary to test, add to performance of the equipment under specific load
Levels of precision and complexity that the load capability set determines operating condition setting are carried, will have a direct impact on the accurate of equipment detection
Property.As mechanical equipment develops to the directions such as high speed, high-precision, efficient, to loading device loading accuracy, loading frequency, loading force
More stringent requirements are proposed for changing rule, load response speed etc..
Loading device is generally divided into unidirectional load and Combined Loading, basis of the unidirectional loading device as Combined Loading are
Most basic loading form.Unidirectional loading device can be divided into uniaxial pressure loading device, unidirectional tension and compression force loading device and list
To pulling force loading device, wherein uniaxial pressure loading device is most widely used in the industries such as automobile, lathe, electronics.It is common at present
Uniaxial pressure loading device mainly have mechanical loading method, hydraulic loaded mode, pneumatically loading mode and electromechanical loading method.
Mechanical load mode is generally permanent load load, as spiral loads and with reloading, can not achieve dynamically load, and be difficult to
Realize the accurate control of loading force.Hydraulic loaded dynamic property is poor, can not achieve high frequency load, and need mating hydraulic
It stands, not enough cleans, complicated integral structure.The overall stiffness of pneumatically loading mode is lower, therefore the control precision of loading force is poor,
Response time is longer, and loading frequency is lower, and noise is larger.Electric loading system mode generally uses Hookean spring as load member
Part, therefore loading frequency is lower, the response time is longer.Therefore, above-mentioned loading device can not meet simultaneously high-precision, high-frequency,
The uniaxial pressure of quick response loads demand.
Summary of the invention
In view of the above-mentioned problems, and a kind of control accurate loading force high the object of the present invention is to provide loading frequency can be real-time
Adjust the high frequency loading device with measurement.
To achieve the above object, the present invention takes following technical scheme: a kind of height that loading force can be adjusted in real time and be measured
Frequency loading device, which is characterized in that it includes: a firm banking, the straight line of two spaced and parallel settings on the fixed base
Guide rail, one is slidably sleeved on the piezoelectric ceramics rear fixed plate in two linear guides, and one is slidably sleeved on two institutes
The piezoelectric ceramics front shoe in linear guide is stated, one is fastenedly connected in the piezoelectric ceramics rear fixed plate and the piezoelectric ceramics
Piezoelectric ceramics between front shoe, one is slidably sleeved in two linear guides and is located at before the piezoelectric ceramics admittedly
The disc spring fixed plate in the front of fixed board, one is mounted on the dish between the disc spring fixed plate and the piezoelectric ceramics front shoe
Spring, one is fastenedly connected the pressure sensor rear fixed plate in the front side of the disc spring fixed plate, and one is fastenedly connected in the pressure
The pressure sensor of the front side of sensor rear fixed plate, one be slidably sleeved in two linear guides and with the pressure
The pressure sensor front shoe being fastenedly connected on front side of sensor, one is fastenedly connected in the pressure sensor front shoe
The loading head of front side and two be respectively sleeved in two linear guides and be located at the pressure sensor front shoe and institute
State the spring between firm banking；Wherein, the rear end of two linear guides is provided with external screw thread, and each linear guide is logical
External screw thread two fixture nuts of mating connection and two locking nuts are crossed, two fixture nuts are fixed after being arranged in the piezoelectric ceramics
The front and rear sides of plate a, wherein locking nut is disposed in the fixture nut on front side of the piezoelectric ceramics rear fixed plate
Front side, another locking nut is disposed in the rear side of the fixture nut on rear side of the piezoelectric ceramics rear fixed plate.
A hollow and thin-walled structure, the hollow and thin-walled structure insertion are provided on front side of the piezoelectric ceramics front shoe
Be arranged in the inner hole in the disc spring fixed plate, the disc spring is nested in the hollow and thin-walled structure, the disc spring it is interior
Hole and the hollow and thin-walled structure interval cooperate.
One end of the linear guide is cooperatively connected by screw thread and the firm banking, and the other end passes through nut check.
The firm banking is fastenedly connected with the apparatus mounting plate being loaded in equipment is located at.
It is connected between the piezoelectric ceramics front shoe and each linear guide by a linear bearing.
The spring is cylinder drawing-pressing spring.
The invention adopts the above technical scheme, which has the following advantages: 1, the present invention can be different by selecting
Piezoelectric ceramics adapts to different loading frequency demands, and maximum load frequency can achieve 10KH, during loading, loading frequency
Can piezoelectric ceramics the following unrestricted choice of maximum resonance frequency and transformation.2, the present invention can be by choosing different-stiffness
Disc spring and the combination of different disc springs, adapt to different loading force demands, and maximum may be implemented the loading force of 10KN, load
Cheng Zhong, loading force can be in the following unrestricted choices of maximum load power and transformation.3, the present invention can be with real―time precision measurment loading force
Size.4, the present invention can freely design different loading force real-time change rules, adapt to different demand occasions, and lead to
Cross the accurate control that the closed-loop control of piezoelectric ceramics may be implemented loading force.5, the present invention is loaded by point contact, nothing
It need to be processed to body is loaded, and the present apparatus is the integrated design, it is easy for installation.6, invention itself can be realized
Biggish axial position is adjusted, therefore the required precision to the installation and positioning structure being fixed on apparatus of the present invention in loaded equipment
It is not high, reduce installation difficulty and cost.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is fractionation structural representation of the invention；
Fig. 3 is loading force control principle schematic diagram of the invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1 and Figure 2, the present invention includes proposing a kind of high frequency load dress that loading force can be adjusted in real time and be measured
It sets, it includes a firm banking 1, and two linear guides 2 of spaced and parallel setting, can slide in two linear guides 2 on firm banking 1
It is arranged a piezoelectric ceramics rear fixed plate 3 and a piezoelectric ceramics front shoe 4 dynamicly, makes pottery in piezoelectric ceramics rear fixed plate 3 and piezoelectricity
A piezoelectric ceramics 5 is fastenedly connected between porcelain front shoe 4.The front of piezoelectric ceramics front shoe 4 is provided with a disc spring to fix
Plate 6, disc spring fixed plate 6 are slidably sleeved in two linear guides 2.Piezoelectric ceramics front shoe 4 and disc spring fixed plate 6 it
Between a disc spring 7 is installed.It is fastenedly connected a pressure sensor rear fixed plate 8 in the front side of disc spring fixed plate 6, after pressure sensor
The front side of fixed plate 8 is fastenedly connected a pressure sensor 9, before the front side of pressure sensor 9 is fastenedly connected a pressure sensor
Fixed plate 10, pressure sensor front shoe 10 are slidably sleeved in two linear guides 2.In pressure sensor front shoe
10 front side is fastenedly connected a loading head 11.It is arranged a spring 12 respectively in two linear guides 2, each spring 12 is located at pressure biography
Between sensor front shoe 10 and firm banking 1.The rear end of two linear guides 2 is provided with external screw thread, and each linear guide 2 passes through
External screw thread two fixture nuts 13 of mating connection and two locking nuts 14, wherein two fixture nuts 13 are arranged in after piezoelectric ceramics admittedly
The front and rear sides of fixed board 3 a, wherein locking nut 14 is disposed in the fixture nut 13 of 3 front side of piezoelectric ceramics rear fixed plate
Front side, another locking nut 14 is disposed in the rear side of the fixture nut 13 of the rear side of piezoelectric ceramics rear fixed plate 3.
In above-described embodiment, the front side of piezoelectric ceramics front shoe 4 is provided with a hollow and thin-walled structure, hollow and thin-walled knot
Structure insertion is arranged in the inner hole in disc spring fixed plate 6；Disc spring 7 is nested in hollow and thin-walled structure, the inner hole of disc spring with it is hollow
Thin-wall construction clearance fit.
In above-described embodiment, spring 12 can specifically use cylinder drawing-pressing spring.
In above-described embodiment, one end of linear guide 2 is cooperatively connected by screw thread and firm banking 1, and the other end passes through spiral shell
Mother 15 locks.
In above-described embodiment, firm banking 1 is fastenedly connected with the apparatus mounting plate 16 being loaded in equipment is located at.
In above-described embodiment, connected between piezoelectric ceramics front shoe 4 and each linear guide 2 by a linear bearing 18
It connects.
In above-described embodiment, it is connected by screw between pressure sensor rear fixed plate 8 and disc spring fixed plate 6, and spiral shell
Nail hole is arranged in the two sides up and down of pressure sensor rear fixed plate 8 and disc spring fixed plate 6, to ensure that pressure sensor 9 is being installed
It is not damaged in the process.
Installation and adjustment process of the invention is as follows: the present invention is mounted on by after in load equipment, first connects loading head 11
Touching load object 17, then the position by adjusting piezoelectric ceramics rear fixed plate 3, so that the reading of pressure sensor 9 is just marginally larger than
Zero, each fixture nut 13 and each locking nut 14 are screwed later.
The course of work of the present invention is as follows: piezoelectric ceramics 5 can regularly extend under the action of voltage, push piezoelectric ceramics
Front shoe 4 travels forward, fixed after disc spring fixed plate 6, pressure sensor since loading head 11 is in contact with load object 17
It is to be fixedly connected between plate 8, pressure sensor 9, pressure sensor front shoe 10 and loading head 11, relative motion can neglect
Slightly, therefore disc spring 7 can generate extrusion deformation, and axial deflection is equal with the elongation of piezoelectric ceramics 5, to generate axial push away
Power, the thrust are consolidated before successively passing to disc spring fixed plate 6, pressure sensor rear fixed plate 8, pressure sensor 9, pressure sensor
Fixed board 10, loading head 11 are ultimately transferred to load object 17.The measured value of pressure sensor 9 is to load force value.
The process that present invention realization loading force accurately controls is as shown in figure 3, details are as follows: loading force is changed over time
Curve is input in piezoelectric ceramic actuator, and piezoelectric ceramic actuator makes piezoelectricity to the voltage signal of piezoelectric ceramics output rule
Ceramics generate corresponding stretching motion, and compression disc spring generates loading force, by pressure sensor real-time measurement loading force size, due to
Power/displacement curve of disc spring is determining, therefore can be converted by the loading force that power/displacement conversion measures pressure sensor
For the displacement of piezoelectric ceramics, piezoelectric ceramics displacement signal is fed back into piezoelectric ceramic actuator and realizes closed-loop control, to improve
The loading accuracy of loading force.
The various embodiments described above are only used for having carried out further specifically the purpose of the present invention, technical scheme and beneficial effects
It is bright, it is not intended to restrict the invention, all within the spirits and principles of the present invention, any modification, equivalent substitution and improvement done
Deng should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of loading force can adjust the high frequency loading device with measurement in real time, which is characterized in that it includes:
One firm banking,
The linear guide of two spaced and parallel settings on the fixed base,
One is slidably sleeved on the piezoelectric ceramics rear fixed plate in two linear guides,
One is slidably sleeved on the piezoelectric ceramics front shoe in two linear guides,
One is fastenedly connected the piezoelectric ceramics between the piezoelectric ceramics rear fixed plate and the piezoelectric ceramics front shoe,
One disc spring for being slidably sleeved in two linear guides and being located at the front of the piezoelectric ceramics front shoe is consolidated
Fixed board,
One is mounted on the disc spring between the disc spring fixed plate and the piezoelectric ceramics front shoe,
One is fastenedly connected the pressure sensor rear fixed plate in the front side of the disc spring fixed plate,
One is fastenedly connected the pressure sensor in the front side of the pressure sensor rear fixed plate,
One is slidably sleeved in two linear guides and passes with the pressure being fastenedly connected on front side of the pressure sensor
Sensor front shoe,
One is fastenedly connected the loading head in the front side of the pressure sensor front shoe, and
Two be respectively sleeved in two linear guides and be located at the pressure sensor front shoe and the firm banking it
Between spring；
Wherein, the rear end of two linear guides is provided with external screw thread, and each linear guide is cooperatively connected by external screw thread
Two fixture nuts and two locking nuts, two fixture nuts are arranged in the front and rear sides of the piezoelectric ceramics rear fixed plate,
In a locking nut be disposed in the front side of the fixture nut on front side of the piezoelectric ceramics rear fixed plate, another lock
Rear side of the tight nut arrangements in the fixture nut being located on rear side of the piezoelectric ceramics rear fixed plate；One end of the linear guide is logical
It crosses screw thread and the firm banking is cooperatively connected, the other end passes through nut check；
A hollow and thin-walled structure, the hollow and thin-walled structure insertion setting are provided on front side of the piezoelectric ceramics front shoe
In the inner hole in the disc spring fixed plate, the disc spring is nested in the hollow and thin-walled structure, the inner hole of the disc spring with
The hollow and thin-walled structure interval cooperation.
2. a kind of loading force as described in claim 1 can adjust the high frequency loading device with measurement in real time, which is characterized in that institute
It states and is connected by screw between pressure sensor rear fixed plate and the disc spring fixed plate, and screw hole is arranged in the pressure and passes
The two sides up and down of sensor rear fixed plate and the disc spring fixed plate.
3. a kind of loading force as described in claim 1 can adjust the high frequency loading device with measurement in real time, which is characterized in that institute
It states and is connected between piezoelectric ceramics front shoe and each linear guide by a linear bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286078.3A CN105973624B (en) | 2016-05-03 | 2016-05-03 | A kind of high frequency loading device that loading force can be adjusted in real time and be measured |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286078.3A CN105973624B (en) | 2016-05-03 | 2016-05-03 | A kind of high frequency loading device that loading force can be adjusted in real time and be measured |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105973624A CN105973624A (en) | 2016-09-28 |
| CN105973624B true CN105973624B (en) | 2019-05-21 |
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| CN201610286078.3A Expired - Fee Related CN105973624B (en) | 2016-05-03 | 2016-05-03 | A kind of high frequency loading device that loading force can be adjusted in real time and be measured |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441673B (en) * | 2016-10-12 | 2018-12-11 | 哈尔滨工业大学 | A kind of active piezoelectric ceramics maximum output force measuring device |
| CN106526241B (en) * | 2016-12-20 | 2019-08-06 | 高邮市新浪爱拓化工机械设备有限公司 | Loading device in situ based on scanning electron microscope |
| CN106526240B (en) * | 2016-12-20 | 2019-04-30 | 济南大学 | A kind of loading device in situ based on scanning electron microscope |
| CN107806989B (en) * | 2017-10-28 | 2019-05-14 | 北华大学 | Heavy CNC vertical turning machine workbench and its feed mechanism reliability test system |
| CN110202472B (en) * | 2019-05-31 | 2021-11-16 | 西安理工大学 | Piezoelectric regulating and controlling device and method for motion precision of closed hydrostatic guideway |
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| JP2000002637A (en) * | 1998-06-15 | 2000-01-07 | Nikki Chemcal Co Ltd | Device and method for measuring crush strength |
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| CN102914442A (en) * | 2012-10-22 | 2013-02-06 | 清华大学 | One-way pressure dynamic loading device |
| CN203657998U (en) * | 2014-01-03 | 2014-06-18 | 天津航天瑞莱科技有限公司 | A combined vibration test apparatus |
| CN104034613A (en) * | 2014-06-24 | 2014-09-10 | 天津三英精密仪器有限公司 | Material vibration load test system for X-ray microscopic imaging |
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- 2016-05-03 CN CN201610286078.3A patent/CN105973624B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002637A (en) * | 1998-06-15 | 2000-01-07 | Nikki Chemcal Co Ltd | Device and method for measuring crush strength |
| CN1666952A (en) * | 2005-03-29 | 2005-09-14 | 华中科技大学 | Dynamic testing loading unit for MEMS disc or device |
| CN202049999U (en) * | 2011-04-22 | 2011-11-23 | 中国工程物理研究院应用电子学研究所 | Piezoelectric ceramic-based driver device |
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