CN107031105A - A kind of ultrasonic vibration ageing device for being applied to eliminate powder compact stress - Google Patents
A kind of ultrasonic vibration ageing device for being applied to eliminate powder compact stress Download PDFInfo
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- CN107031105A CN107031105A CN201710133093.9A CN201710133093A CN107031105A CN 107031105 A CN107031105 A CN 107031105A CN 201710133093 A CN201710133093 A CN 201710133093A CN 107031105 A CN107031105 A CN 107031105A
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- ultrasonic
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- shaking platform
- ultrasonic transducer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
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- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
A kind of ultrasonic vibration ageing device for being applied to eliminate powder compact stress, including：Vibrate pedestal, shaking platform, multiple ultrasonic transducers and signal generator；Shaking platform be horizontally placed on vibration pedestal top, multiple vertical array arrangements of ultrasonic transducer in vibration pedestal in, and, the output shaft of each ultrasonic transducer is contacted to the bottom surface of shaking platform respectively；Signal generator is used to provide excited frequency to each ultrasonic transducer respectively, and phase, frequency and the amplitude of the ultrasonic wave for launching each ultrasonic transducer regulate and control.Due to multiple ultrasound transducer arrays are arranged in vibration pedestal, the stress of powder compact multiple directions is eliminated by array vibrational energy, moreover, being regulated and controled by phase, frequency and amplitude to ultrasonic wave, can have to the stress of different directions and targetedly eliminate.
Description
Technical field
The present invention relates to stress elimination technical field, and in particular to a kind of ultrasound for being applied to eliminate powder compact stress
Vibration ageing device.
Background technology
Hardware causes internal character deformation by technical process such as welding, casting, forging, machinings, will necessarily
Residual stress is produced, the ultimate strength and fatigue strength of component is greatly reduced, or even can be cracked and brittle fracture, and
Due to the relaxation of residual stress in processing and use, part is deformed, greatly have impact on size, the position essence of component
Degree and overall performance, reduce this internal stress main method by timeliness at present；Likewise, the process of powder compact processing
In can also produce stress, due to, powder compact is different from the stress of hardware, so, disappear for the stress of hardware
Except device may not adapt to powder compact, further, since the characteristic of powder compact itself, it often has multidirectional answer
Power.
The content of the invention
For how to eliminate powder compact stress, the application provides a kind of suitable for eliminating the super of powder compact stress
Acoustic vibration ageing device, including vibration pedestal, shaking platform, multiple ultrasonic transducers and signal generator；
Shaking platform is horizontally placed on the top of vibration pedestal, and multiple vertical array arrangements of ultrasonic transducer are in vibration base
In frame, and, the output shaft of multiple ultrasonic transducers is contacted to the bottom surface of shaking platform respectively；
Signal generator is used to provide excited frequency to each ultrasonic transducer respectively, and for each ultrasonic waves
Phase, frequency and the amplitude of the ultrasonic wave of energy device transmitting are regulated and controled.
In a kind of embodiment, ultrasonic transducer is removably mounted in vibration pedestal.
In a kind of embodiment, the type of ultrasonic transducer is magnetostrictive transducer or piezoelectric ceramic transducer, and, magnetic
It is piezoelectric ceramic transducer to cause striction transducer detachable, or, piezoelectric ceramic transducer is detachable to be stretched for mangneto
Contracting transducer.
In a kind of embodiment, the upper surface of shaking platform is provided with the installation hole array for being used for installing powder compact.
In a kind of embodiment, in addition to limiting section, limiting section includes limiting bracket and limiting buffer device, limiting bracket Cheng Xi
Type；
The free end of the boundary frame area of limiting bracket is fixedly connected on the lateral wall of vibration pedestal, the top margin frame position of limiting bracket
In the top of shaking platform；
Limiting buffer device is arranged at the inwall of the top margin frame of limiting bracket, and relative up and down with shaking platform.
In a kind of embodiment, in addition to loading plate, loading plate is fixedly installed on the bottom of shaking platform, ultrasonic transducer
Output shaft contact to the bottom surface of loading plate.
In a kind of embodiment, signal generator includes sample circuit, power control circuit and phase-control circuit；
Sample circuit is used for the voltage and current for gathering ultrasonic transducer input；
Power control circuit is used to control voltage or electric current control ultrasonic transducer to export firm power；
Phase-control circuit is adjusted humorous to control ultrasonic transducer to work in for the phase to voltage and current
Vibration frequency point.
In a kind of embodiment, signal generator also includes frequency modulation circuit, and frequency modulation circuit is used for excited frequency
It is modulated into the alternate excited frequency of high and low frequency.
According to the ultrasonic vibration ageing device of above-described embodiment, due to multiple ultrasound transducer arrays are arranged in into vibration
In pedestal, signal generator provides excited frequency to each ultrasonic transducer respectively, and ultrasonic transducer passes through shaking platform
Ultrasonic vibration is carried out to powder compact, the stress of powder compact multiple directions is eliminated by array vibrational energy, moreover, logical
Cross and the phase, frequency and amplitude of ultrasonic wave are regulated and controled, can have to the stress of different directions and targetedly eliminate.
Further, the different type of powder compact can be directed to, the ultrasonic transducer adaptable with it is selected, e.g., by
Detachable original magnetostrictive transducer is piezoelectric ceramic transducer, or, can by original piezoelectric ceramic transducer
Dismounting and change is magnetostrictive transducer, to solve the problem of existing ultrasonic vibration ageing device function is single.
Further, it is controlled by voltage or electric current to ultrasonic transducer, so that it exports firm power, together
When, phase controlling also is carried out to its voltage and current, so that it works in resonant frequency point all the time.
Further, to be modulated into high and low frequency by the excited frequency to ultrasonic transducer alternate, makes ultrasonic wave transducer
Device can carry out stress elimination from both macro and micro to powder compact.
Brief description of the drawings
Fig. 1 is ultrasonic vibration ageing device schematic diagram；
Fig. 2 is shaking platform structural representation.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
This example provides a kind of ultrasonic vibration ageing device for being applied to eliminate powder compact stress, its structure chart such as Fig. 1
It is shown, including vibration pedestal 1, shaking platform 2, multiple ultrasonic transducers 3 and signal generator 4.
Wherein, shaking platform 2 is horizontally placed on the top of vibration pedestal 1, multiple ultrasonic transducers 3 by connecting plate 5
Vertical array arrangement is in vibration pedestal 1, and the output shaft of each ultrasonic transducer 3 is contacted to the bottom of shaking platform 2 respectively
Face.
Specifically, be respectively equipped with fixed support 11 on the relative madial wall of vibration pedestal 1, by bolt 12 by ring flange 13
It is fixedly connected respectively with fixed support 11, ultrasonic transducer 3 is removably connected to ring flange 12, and, multiple ultrasonic wave transducers
The array arrangement of device 3 is in ring flange 13；The type of the ultrasonic transducer 3 of this example is magnetostrictive transducer or piezoelectric ceramics transducing
Device, can be according to the type of the type selecting ultrasonic transducer 3 of powder compact, e.g., can be by original magnetostrictive transducer
Dismounting and change is piezoelectric ceramic transducer, or, detachable by original piezoelectric ceramic transducer is magnetostriction transducing
Device, i.e. the ultrasonic vibration ageing device of this example can according to the operating mode of powder compact, the change of workpiece, selection vibration characteristics and
Electrology characteristic different piezoelectric ceramic transducer or magnetostrictive transducer are single with existing ultrasonic vibration ageing device function
Compare, the ultrasonic vibration ageing device of this example can change corresponding ultrasonic transducer 3 according to the type of powder compact, because
This, the ultrasonic vibration ageing device of this example has functional diversity.
Row positioning vibration when further, in order to for the stress position of powder compact, as shown in Fig. 2 the vibration of this example
The upper surface of platform 2 is provided with the installation hole array 21 for being used for installing powder compact, and the fixture for being fixed with powder compact is led to
Installation hole array 21 is crossed to be installed on shaking platform 2, and the stress position of powder compact is contacted with the fixation of shaking platform 2, is pressed from both sides
After tool is fixed, orientation and the ultrasonic vibration direction of powder compact are surpassed into a fixed angle, then to powder compact
Acoustically-driven is vibrated.
Further, when shaking platform 2 is vibrated, in order to limit the Oscillation Amplitude of shaking platform 2, this example also includes spacing
Portion, limiting section includes limiting bracket 6 and limiting buffer device 7, the Cheng Xi types of limiting bracket 6, the free end of the boundary frame area of limiting bracket 6
Be fixedly connected on vibration pedestal 1 lateral wall, and limiting bracket 6 top margin frame be located at shaking platform 2 top, limiting buffer device
7 are arranged at the inwall of the top margin frame of limiting bracket 6, and relative up and down with shaking platform, specifically, limiting buffer device 7 has bullet
Property, the upper surface of its lower surface and connecting plate 5, when shaking platform 2 is vibrated, shaking platform 2 drives connecting plate 5 to shake
Dynamic, limiting buffer device 7 carries out buffer limit to connecting plate 5, reaches and spacing purpose is carried out to shaking platform 2.
Further, this example also includes loading plate 8, and loading plate 8 is fixedly installed on the bottom of shaking platform 2, ultrasonic wave transducer
The output shaft of device 3 is contacted to the bottom surface of loading plate 8, and ultrasonic vibration is carried out to loading plate 8 by ultrasonic transducer 3, and by holding
Support plate 8 transmits vibrational energy to shaking platform 2.
Further, in order that ultrasonic transducer 3 exports firm power, the signal generator 4 of this example includes sample circuit
41 and power control circuit 42, sample circuit 41 is used for the voltage and current for gathering the input of ultrasonic transducer 3；Power Control
Circuit 42 is used for control voltage or electric current to control ultrasonic transducer 3 to export firm power, and power control circuit 42 can be
PI closed-loop controls, using the voltage or electric current of collection as PI closed-loop controls feedback voltage or electric current, by voltage or electric current
PI conciliations are carried out, so that ultrasonic transducer 3 exports firm power, power control circuit 42 can also be existing conventional work(
Rate control circuit, as long as can reach that control ultrasonic transducer 3 exports the purpose of firm power.
Further, in order that ultrasonic transducer 3 is operated on its resonant frequency point, and then stable vibration is produced, this
Example signal generator also include phase-control circuit 43, phase-control circuit 43 be used for sample circuit 41 gather voltage and
The phase of electric current is adjusted to control ultrasonic transducer 3 to work in resonant frequency point, specifically, phase-control circuit 43 can
To be PI closed-loop controls, phase-control circuit 43 regard the phase difference as PI closed loops by detecting the phase of voltage and current
The feedback signal of control, the phase to voltage and current is mediated, and makes the phase of voltage and current identical, and then, it can make to surpass
Acoustic wave transducer 3 produces resonance, that is, is operated in resonant frequency point.
Further, in order to carry out both macro and micro elimination to the stress of powder compact, the signal generator of this example is also wrapped
Frequency modulation circuit 44 is included, frequency modulation circuit 44 is used to excited frequency being modulated into the alternate excited frequency of high and low frequency,
So that ultrasonic transducer 3 produces corresponding vibration according to the alternate excited frequency of high and low frequency, both macro and micro control is reached
The purpose of system；Specifically, due to powder compact, with the change of stress, its resonant frequency changes therewith, vibration ageing device
Resonant frequency can also shift, and cause the reduction of the delivery efficiency of ultrasonic transducer 3, and loss increase, power output reduces；Cause
This, using the frequency modulation circuit 44 of power output feedback modulation frequency, reads power output data in real time, low in power output
When certain allowed band, adjust power amplifier output frequency, with adapt to load dynamic change, tracer action powder compact it is humorous
Vibration frequency.
Use above specific case is illustrated to the present invention, is only intended to help and is understood the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, it can also make some simple
Deduce, deform or replace.
Claims (9)
1. a kind of ultrasonic vibration ageing device for being applied to eliminate powder compact stress, it is characterised in that including：Vibrate base
Frame, shaking platform, multiple ultrasonic transducers and signal generator；
The shaking platform is horizontally placed on the top of the vibration pedestal, the multiple vertical array arrangement of ultrasonic transducer
Vibrated in described in pedestal, and, the output shaft of each ultrasonic transducer is contacted to the bottom surface of the shaking platform respectively；
The signal generator is used to provide excited frequency to ultrasonic transducer each described respectively, and for described in each
Phase, frequency and the amplitude of the ultrasonic wave of ultrasonic transducer transmitting are regulated and controled.
2. ultrasonic vibration ageing device as claimed in claim 1, it is characterised in that the ultrasonic transducer is detachably installed
In in the vibration pedestal.
3. ultrasonic vibration ageing device as claimed in claim 2, it is characterised in that the type of the ultrasonic transducer is magnetic
Striction transducer or piezoelectric ceramic transducer are caused, and, the magnetostrictive transducer is detachable to be changed for the piezoelectric ceramics
Energy device, or, the detachable piezoelectric ceramic transducer is the magnetostrictive transducer.
4. ultrasonic vibration ageing device as claimed in claim 1, it is characterised in that the upper surface of the shaking platform is provided with use
In the installation hole array for installing powder compact.
5. ultrasonic vibration ageing device as claimed in claim 1, it is characterised in that also including limiting section, the limiting section bag
Limiting bracket and limiting buffer device are included, the limiting bracket is in Contraband type；
The free end of the boundary frame area of the limiting bracket is fixedly connected on the lateral wall of the vibration pedestal, the limiting bracket
Top margin frame is located at the top of the shaking platform；
The limiting buffer device is arranged at the inwall of the top margin frame of the limiting bracket, and relative up and down with the shaking platform.
6. ultrasonic vibration ageing device as claimed in claim 1, it is characterised in that also including loading plate, the loading plate is consolidated
Surely the bottom of the shaking platform is arranged at, the output shaft of the ultrasonic transducer is contacted to the bottom surface of the loading plate.
7. ultrasonic vibration ageing device as claimed in claim 1, it is characterised in that the signal generator includes sample circuit
And power control circuit；
The sample circuit is used for the voltage and current for gathering the ultrasonic transducer input；
The power control circuit is used to control the voltage or electric current to control the ultrasonic transducer output firm power.
8. ultrasonic vibration ageing device as claimed in claim 7, it is characterised in that the signal generator also includes phase control
Circuit processed；
The phase-control circuit is used to be adjusted to control the ultrasonic waves phase of the voltage and the electric current
Energy device works in resonant frequency point.
9. ultrasonic vibration ageing device as claimed in claim 7, it is characterised in that the signal generator also includes frequency and adjusted
Circuit processed, the frequency modulation circuit is used to the excited frequency being modulated into the alternate excited frequency of high and low frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710133093.9A CN107031105B (en) | 2017-03-07 | 2017-03-07 | A kind of ultrasonic vibration ageing device being suitable for eliminating powder compact stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710133093.9A CN107031105B (en) | 2017-03-07 | 2017-03-07 | A kind of ultrasonic vibration ageing device being suitable for eliminating powder compact stress |
Publications (2)
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| CN107031105A true CN107031105A (en) | 2017-08-11 |
| CN107031105B CN107031105B (en) | 2018-10-26 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107760921A (en) * | 2017-09-30 | 2018-03-06 | 山西沃特海默新材料科技股份有限公司 | A kind of vibration stress relief treatment method and its application of copper aluminium silicon Nanoalloy material |
| CN107971300A (en) * | 2018-01-05 | 2018-05-01 | 苏州科技大学 | It is a kind of to remove the device for being adhered to hook surface powder |
| CN108004388A (en) * | 2017-12-22 | 2018-05-08 | 上海海事大学 | A kind of method of definite ultrasonic vibration timeliness excited frequency |
| CN108823396A (en) * | 2018-07-03 | 2018-11-16 | 南京航空航天大学 | A kind of double excitation two-dimension vibration timeliness removes de-stress device |
| CN111136946A (en) * | 2020-01-03 | 2020-05-12 | 中国农业大学 | Rebound reduction method for compression forming block of multi-stage rolling straw forming machine |
| CN112097973A (en) * | 2020-08-19 | 2020-12-18 | 佛山科学技术学院 | Method for measuring and eliminating internal stress of building ceramic plate and application thereof |
| CN112097972A (en) * | 2020-08-12 | 2020-12-18 | 佛山方竹科技有限公司 | Method for rapidly measuring internal stress of building ceramic plate and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107760921A (en) * | 2017-09-30 | 2018-03-06 | 山西沃特海默新材料科技股份有限公司 | A kind of vibration stress relief treatment method and its application of copper aluminium silicon Nanoalloy material |
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| CN108823396A (en) * | 2018-07-03 | 2018-11-16 | 南京航空航天大学 | A kind of double excitation two-dimension vibration timeliness removes de-stress device |
| CN111136946A (en) * | 2020-01-03 | 2020-05-12 | 中国农业大学 | Rebound reduction method for compression forming block of multi-stage rolling straw forming machine |
| CN112097972A (en) * | 2020-08-12 | 2020-12-18 | 佛山方竹科技有限公司 | Method for rapidly measuring internal stress of building ceramic plate and application |
| CN112097972B (en) * | 2020-08-12 | 2022-04-05 | 佛山方竹科技有限公司 | Method for rapidly measuring internal stress of building ceramic plate and application |
| CN112097973A (en) * | 2020-08-19 | 2020-12-18 | 佛山科学技术学院 | Method for measuring and eliminating internal stress of building ceramic plate and application thereof |
| CN112097973B (en) * | 2020-08-19 | 2022-05-17 | 佛山科学技术学院 | Method for measuring and eliminating internal stress of building ceramic plate and application thereof |
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| CN107031105B (en) | 2018-10-26 |
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