CN107031105B - A kind of ultrasonic vibration ageing device being suitable for eliminating powder compact stress - Google Patents
A kind of ultrasonic vibration ageing device being suitable for eliminating powder compact stress Download PDFInfo
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- CN107031105B CN107031105B CN201710133093.9A CN201710133093A CN107031105B CN 107031105 B CN107031105 B CN 107031105B CN 201710133093 A CN201710133093 A CN 201710133093A CN 107031105 B CN107031105 B CN 107031105B
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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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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
A kind of ultrasonic vibration ageing device being suitable for eliminating 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 respectively to the bottom surface of shaking platform；Signal generator to each ultrasonic transducer for providing excited frequency respectively, and phase, frequency and the amplitude of the ultrasonic wave for emitting each ultrasonic transducer regulate and control.Since multiple ultrasound transducer arrays being arranged in vibration pedestal, the stress of powder compact multiple directions is eliminated by array vibrational energy, moreover, being regulated and controled by the 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 fields, and in particular to a kind of ultrasound being suitable for eliminating powder compact stress
Vibration ageing device.
Background technology
Metal component causes internal character deformation by technical process such as welding, casting, forging, mechanical processings, will necessarily
Residual stress is generated, greatly reduces the ultimate strength and fatigue strength of component, or even will produce crackle and brittle fracture, and
Due to the relaxation of residual stress in processing and use, part is made to be deformed, has greatly affected size, the position essence of component
Degree and overall performance, reduce this internal stress at present mainly by the method for timeliness；Likewise, the process of powder compact processing
In also will produce stress, due to, powder compact is different from the stress of metal component, so, disappear for the stress of metal component
Except device may not adapt to powder compact, in addition, due to the characteristic of powder compact itself, often there is multidirectional answer
Power.
Invention content
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 respectively to the bottom surface of shaking platform；
Signal generator is used for for providing excited frequency to each ultrasonic transducer respectively to 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, is stretched for mangneto alternatively, piezoelectric ceramic transducer is detachable
Contracting energy converter.
In a kind of embodiment, the upper surface of shaking platform is equipped with the installation hole array for installing powder compact.
Further include limiting section, limiting section includes limiting bracket and limiting buffer device, limiting bracket Cheng Xi in a kind of embodiment
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 set to the inner wall of the top margin frame of limiting bracket, and opposite up and down with shaking platform.
Further include loading plate, loading plate is fixedly installed on the bottom of shaking platform, ultrasonic transducer in a kind of embodiment
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 to acquire the voltage and current of ultrasonic transducer input terminal；
Power control circuit exports firm power for controlling voltage or electric current to control ultrasonic transducer；
Phase-control circuit for the phase of voltage and current is adjusted with control ultrasonic transducer work in it is humorous
Vibration frequency point.
In a kind of embodiment, signal generator further 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, since multiple ultrasound transducer arrays are arranged in 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
It crosses and the phase, frequency and amplitude of ultrasonic wave is regulated and controled, can have to the stress of different directions and targetedly eliminate.
Further, it can be directed to the different type of powder compact, select the ultrasonic transducer adaptable with it, e.g., by
Detachable original magnetostrictive transducer is piezoelectric ceramic transducer, alternatively, can by original piezoelectric ceramic transducer
Dismounting and change is magnetostrictive transducer, to solve the problems, such as that existing ultrasonic vibration ageing device has a single function.
Further, it is controlled by voltage to ultrasonic transducer or electric current, 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 always.
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.
Description of the drawings
Fig. 1 is ultrasonic vibration ageing device schematic diagram；
Fig. 2 is shaking platform structural schematic diagram.
Specific implementation mode
Below by specific implementation mode combination attached drawing, invention is further described in detail.
This example provides a kind of ultrasonic vibration ageing device being suitable for eliminating powder compact stress, 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 respectively to the bottom of shaking platform 2
Face.
Specifically, be respectively equipped with fixing bracket 11 on the opposite madial wall of vibration pedestal 1, by bolt 12 by ring flange 13
It being fixedly connected respectively with fixing bracket 11, ultrasonic transducer 3 is removably connected to ring flange 12, and, multiple ultrasonic wave transducers
3 array arrangement of device is in ring flange 13；The type of the ultrasonic transducer 3 of this example is magnetostrictive transducer or piezoelectric ceramics transducing
Device can select the type of ultrasonic transducer 3 e.g. can be by original magnetostrictive transducer according to the type of powder compact
Dismounting and change is piezoelectric ceramic transducer, alternatively, detachable by original piezoelectric ceramic transducer is magnetostriction transducing
Device, that is, the ultrasonic vibration ageing device of this example can according to the variation of the operating mode, workpiece of powder compact, select vibration characteristics and
Electrology characteristic different piezoelectric ceramic transducer or magnetostrictive transducer, have a single function with existing ultrasonic vibration ageing device
It compares, the ultrasonic vibration ageing device of this example can replace 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 equipped with the installation hole array 21 for installing powder compact, and the fixture for being fixed with powder compact is led to
It crosses installation hole array 21 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 surpass at 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 further includes limit
Portion, limiting section include limiting bracket 6 and limiting buffer device 7,6 Cheng Xi types of limiting bracket, the free end of the boundary frame area of limiting bracket 6
It is fixedly connected on the lateral wall of vibration pedestal 1, and the top margin frame of limiting bracket 6 is located at the top of shaking platform 2, limiting buffer device
7 are set to the inner wall of the top margin frame of limiting bracket 6, and opposite up and down with shaking platform, specifically, limiting buffer device 7 has bullet
Property, lower surface is contacted with the upper surface of connecting plate 5, and 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, achievees the purpose that limit shaking platform 2.
Further, this example further 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, carries out ultrasonic vibration to loading plate 8 by ultrasonic transducer 3, and by holding
Vibrational energy is transmitted to shaking platform 2 by support plate 8.
Further, in order to make ultrasonic transducer 3 export firm power, the signal generator 4 of this example includes sample circuit
41 and power control circuit 42, sample circuit 41 is used to acquire the voltage and current of 3 input terminal of ultrasonic transducer；Power control
Circuit 42 exports firm power for controlling voltage or electric current to control ultrasonic transducer 3, and power control circuit 42 can be
PI closed-loop controls, using the voltage of acquisition or electric current as the feedback voltage of PI closed-loop controls 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 achieve the purpose that controlling ultrasonic transducer 3 exports firm power.
Further, in order to make ultrasonic transducer 3 be operated on its resonant frequency point, and then stable vibration is generated, this
The signal generator of example further includes phase-control circuit 43, the voltage that phase-control circuit 43 is used to acquire sample circuit 41 with
The phase of electric current is adjusted works in resonant frequency point to control ultrasonic transducer 3, specifically, phase-control circuit 43 can
To be PI closed-loop controls, phase-control circuit 43 is by detecting the phase of voltage and current, and using the phase difference as PI closed loops
The phase of voltage and current is mediated in the feedback signal of control, keeps the phase of voltage and current identical, in turn, can make to surpass
Acoustic wave transducer 3 generates 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 also wraps
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 generates corresponding vibration according to the alternate excited frequency of high and low frequency, reach both macro and micro control
The purpose of system；Specifically, since with the change of stress, its resonant frequency changes correspondingly powder compact, vibration ageing device
Resonant frequency can also shift, and cause the reduction of 3 delivery efficiency of ultrasonic transducer, loss to increase, output power reduces；Cause
This reads output power data in real time using the frequency modulation circuit 44 of power output feedback modulation frequency, low in output power
When certain allowable range, adjust the output frequency of power amplifier, with adapt to load dynamic change, tracer action powder compact it is humorous
Vibration frequency.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not limiting
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (7)
1. a kind of ultrasonic vibration ageing device being suitable for eliminating powder compact stress, which is characterized in that including：Vibrate base
Frame, shaking platform, multiple ultrasonic transducers and signal generator；
The upper surface of the shaking platform is equipped with the installation hole array for installing powder compact, and the shaking platform level is set
It is placed in the top of the vibration pedestal, the multiple vertical array of ultrasonic transducer is detachably arranged in the vibration pedestal
It is interior, and, the output shaft of each ultrasonic transducer is contacted respectively to the bottom surface of the shaking platform；
The signal generator is used for for providing excited frequency to each ultrasonic transducer respectively to each described
Phase, frequency and the amplitude of the ultrasonic wave of ultrasonic transducer transmitting are regulated and controled.
2. ultrasonic vibration ageing device as described in claim 1, which is characterized 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, alternatively, it is the magnetostrictive transducer that the piezoelectric ceramic transducer is detachable.
3. ultrasonic vibration ageing device as described in claim 1, which is characterized in that further include limiting section, the limiting section packet
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 set to the inner wall of the top margin frame of the limiting bracket, and opposite up and down with the shaking platform.
4. ultrasonic vibration ageing device as described in claim 1, which is characterized in that further include loading plate, the loading plate is solid
Surely it is set to the bottom of the shaking platform, the output shaft of the ultrasonic transducer is contacted to the bottom surface of the loading plate.
5. ultrasonic vibration ageing device as described in claim 1, which is characterized in that the signal generator includes sample circuit
And power control circuit；
The sample circuit is used to acquire the voltage and current of the ultrasonic transducer input terminal；
The power control circuit controls the ultrasonic transducer for controlling the voltage or electric current and exports firm power.
6. ultrasonic vibration ageing device as claimed in claim 5, which is characterized in that the signal generator further includes phase control
Circuit processed；
The phase-control circuit is for being adjusted the phase of the voltage and the electric current to control the ultrasonic waves
Energy device works in resonant frequency point.
7. ultrasonic vibration ageing device as claimed in claim 5, which is characterized in that the signal generator further includes frequency tune
Circuit processed, the frequency modulation circuit are 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 |
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| CN201710133093.9A CN107031105B (en) | 2017-03-07 | 2017-03-07 | A kind of ultrasonic vibration ageing device being suitable for eliminating powder compact stress |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710133093.9A CN107031105B (en) | 2017-03-07 | 2017-03-07 | A kind of ultrasonic vibration ageing device being suitable for eliminating powder compact stress |
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| CN107031105A CN107031105A (en) | 2017-08-11 |
| CN107031105B true CN107031105B (en) | 2018-10-26 |
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Families Citing this family (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 |
| CN108004388B (en) * | 2017-12-22 | 2019-05-03 | 上海海事大学 | A kind of method of determining ultrasonic vibration timeliness excited frequency |
| CN107971300B (en) * | 2018-01-05 | 2023-08-22 | 苏州科技大学 | Device for removing powder adhered to surface of hook |
| 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 |
| 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 |
| 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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| US4358945A (en) * | 1979-07-17 | 1982-11-16 | Zahnradfabrik Friedrichshafen, Aktiengesellschaft | Gag press |
| CN103889671A (en) * | 2011-08-23 | 2014-06-25 | 克里斯多佛·T·班纳斯 | Vacuum vibration press for forming engineered composite stone slabs |
| CN204170915U (en) * | 2014-09-12 | 2015-02-25 | 广东工业大学 | The device of ultrasonic wave added compacting integrated inductance |
| CN105150033A (en) * | 2015-08-12 | 2015-12-16 | 华侨大学 | Large-size axial ultrasound-assisted end face grinding abrasive disk |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358945A (en) * | 1979-07-17 | 1982-11-16 | Zahnradfabrik Friedrichshafen, Aktiengesellschaft | Gag press |
| CN103889671A (en) * | 2011-08-23 | 2014-06-25 | 克里斯多佛·T·班纳斯 | Vacuum vibration press for forming engineered composite stone slabs |
| CN204170915U (en) * | 2014-09-12 | 2015-02-25 | 广东工业大学 | The device of ultrasonic wave added compacting integrated inductance |
| CN105150033A (en) * | 2015-08-12 | 2015-12-16 | 华侨大学 | Large-size axial ultrasound-assisted end face grinding abrasive disk |
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