CN104785430B - The linear ultrasonic compressional vibration ultrasonic transformer of stretched wire of output end axial aperture - Google Patents
The linear ultrasonic compressional vibration ultrasonic transformer of stretched wire of output end axial aperture Download PDFInfo
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- CN104785430B CN104785430B CN201510177756.8A CN201510177756A CN104785430B CN 104785430 B CN104785430 B CN 104785430B CN 201510177756 A CN201510177756 A CN 201510177756A CN 104785430 B CN104785430 B CN 104785430B
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Abstract
A kind of linear ultrasonic compressional vibration ultrasonic transformer of the stretched wire of output end axial aperture, in the centerline axis of ultrasonic transformer to being machined with rectangular through-hole on the inside of small end, the distance between the outer hole wall and small end of rectangular through-hole t is the luffing pole length L of 2mm~0.18, and the geometry of the ultrasonic transformer is both ends of the surface for parallel plane, the clava that side is hyperbolic cosine surface of revolution perpendicular to center line.Because the present invention at a certain distance from the center line axial distance output end of catenary shape ultrasonic transformer using a rectangular through-hole is machined with, worked at compressional vibration resonant frequency, output end can also encourage the component of flexural vibrations in addition to the compressional vibration for having ultrasonic transformer.The superposition of the component of compressional vibration and flexural vibrations, the amplitude amplification factor of perforate circular cone ultrasonic transformer improve 1.68~3.3 times than the amplitude amplification factor of solid circular cone ultrasonic transformer, substantially increase operating efficiency.
Description
Technical field
The invention belongs to mechanical vibration technology field, and in particular to the ultrasonic amplitude transformer of ultrasonic transducer.
Background technology
Ultrasonic amplitude transformer can be widely used in chemical industry, oil, cleaning, machining, food, medicine, automobile, instrument instrument
In table, weaving, machining (such as turning, punching, grinding, plastics welding, metal welding) field.It is ultrasonic vibration system
In a significant components, be connected with ultrasonic transducer, main function be ultrasonic transducer output mechanical oscillation particle
Displacement or speed are amplified, and ultrasonic energy is concentrated on the area of ultrasonic transformer output end and plays a part of cumulative,
Claim gear lever or amplitude transformer.The amplitude of usual ultrasonic transducer output end is smaller, and only several microns, ultrasonic amplitude transformer can be amplitude
It is amplified to required for supersound process or Ultrasonic machining on tens or even hundreds of microns of amplitude.Therefore, ultrasonic amplitude transformer is to improving
The operating efficiency of ultrasonic vibration system, extending the service life of transducer has great significance.
In order to amplify the vibration displacement of particle or speed, the usually input of ultrasonic transformer is connected with transducer output end
Connect, the area of ultrasonic transformer input is larger, output end area is smaller, and ultrasonic energy can so be concentrated on to less output end
The variable cross-section luffing that on area, so as to realize the effect of cumulative, such as stretched wire is linear, index shape, cone, gaussian-shape are traditional
Bar, its input area is big, and output end area is small.It is ultrasonically treated and the efficiency of Ultrasonic machining to improve, in practical application, surpasses
The welding of sound plastics, ultrasonic metal welding, ultrasound punching etc., in the case where the input electric power of transducer is constant, ultrasonic transformer is put
Big coefficient is bigger, then the working time is shorter, and operating efficiency is also higher.In vibrational system, do not reached according to a ultrasonic transformer
To the Oscillation Amplitude required by work, then the multiple ultrasonic transformers of generally use cascade up.
Ultrasonic transformer in Power Ultrasonic Vibration System mainly plays amplification amplitude effect, to carry out Ultrasonic machining and ultrasound
Processing.It is ultrasonically treated and the efficiency of Ultrasonic machining to improve, in practical application, such as the weldering of ultrasonic plastic tool, Ultrasonic metal
Connect, ultrasound punching etc., in the case where the input electric power of transducer is constant, ultrasonic transformer amplification coefficient is bigger, then the working time
Shorter, operating efficiency is also higher.The amplitude amplification factor of traditional variable cross-section solid ultrasonic transformer is limited, to the power of large amplitude
Applications of ultrasound, tend not to meet to require.The first is to be concatenated together multistage ultrasonic transformer to the method for solution, and second is to add
The input electric power of big transducer, first method can increase cost, and second method can shorten the service life of transducer.
The content of the invention
A kind of the shortcomings that technical problems to be solved by the invention are to overcome said apparatus, there is provided reasonable in design, structure
Simply, the linear ultrasonic compressional vibration ultrasonic transformer of the stretched wire of the big output end axial aperture of amplitude amplification factor.
Technical scheme is used by solving above-mentioned technical problem：In the centerline axis of ultrasonic transformer to being machined with the inside of small end
The distance between rectangular through-hole, the outer hole wall and small end of rectangular through-hole t is the luffing pole length L of 2mm~0.18, the ultrasonic transformer it is several
What shape is both ends of the surface for parallel plane, the clava that side is hyperbolic cosine surface of revolution perpendicular to center line.
The present invention hyperbolic cosine surface of revolution be：With the curve in rectangular coordinate system
Y=(d/2) ch γ (L-x), wherein
It is the surface of revolution that rotary shaft is formed for bus, x-axis, 0≤x≤luffing pole length L, y is at coordinate x sections in formula
Radius, D be ultrasonic transformer outside diameter, d be ultrasonic transformer 1 end diameter.
The outside diameter D of the ultrasonic transformer of the present invention is 0.15~0.4 times of luffing pole length L, and end diameter d is at least than big
End diameter D is less than 2mm.
The length b of the rectangular through-hole of the present invention is 0.15~0.6 times of luffing pole length L, width a is that ultrasonic transformer small end is straight
0.3~0.8 times of footpath d.
The luffing pole length L of the present invention is 40~200mm.
Processed because the present invention uses at a certain distance from the center line axial distance output end of catenary shape ultrasonic transformer
There is a rectangular through-hole, worked at compressional vibration resonant frequency, output end can also encourage in addition to the compressional vibration for having ultrasonic transformer
The component of flexural vibrations.The superposition of the component of compressional vibration and flexural vibrations, the amplitude amplification factor of perforate circular cone ultrasonic transformer is than real
The amplitude amplification factor of heart circular cone ultrasonic transformer improves 1.68~3.3 times, substantially increases operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Embodiment
The present invention is described in more detail with reference to the accompanying drawings and examples, but the invention is not restricted to these embodiments.
Embodiment 1
In Fig. 1, the linear ultrasonic compressional vibration ultrasonic transformer of the stretched wire of output end axial aperture of the invention is by the structure of ultrasonic transformer 1
Into.It perpendicular to the parallel plane of center line, side is the bar-shaped of hyperbolic cosine surface of revolution that the both ends of the surface of this example ultrasonic transformer 1, which are,
Body, the geometry of side is with the curve in rectangular coordinate system
Y=(d/2) ch γ (L-x), wherein
It is the surface of revolution that rotary shaft is formed for bus, x-axis, 0≤x≤luffing pole length L, y is at coordinate x sections in formula
Radius, D be ultrasonic transformer 1 outside diameter, when in use, big end and the ultrasonic transducer of ultrasonic transformer 1 are connected, and d is ultrasonic transformer 1
End diameter, the small end of ultrasonic transformer 1 is output end.The present embodiment luffing pole length L is 120mm, the outside diameter of ultrasonic transformer 1
D is 36mm, end diameter d is 20mm, and outside diameter D is 0.3 times of luffing pole length L.According to actual conditions, end diameter d
Can be in value in the range of the 2mm less than outside diameter D.The material for making ultrasonic transformer 1 is 45 ﹟ steel.In the center line of ultrasonic transformer 1
Axial distance small end t is that rectangular through-hole is machined with 12mm, and the distance between the outer hole wall of rectangular through-hole and output end t are 0.10
Luffing pole length L, the length b of rectangular through-hole are 36mm, width a is 10mm, and the length b of rectangular through-hole is luffing pole length L's
0.3 times, the width a of rectangular through-hole is 0.5 times of ultrasonic transformer end diameter d.The stretched wire of the output end axial aperture of this structure
Linear ultrasonic compressional vibration ultrasonic transformer is compared with the linear ultrasonic compressional vibration ultrasonic transformer of solid stretched wire, using ANSYS finite element software meters
Obtain, the longitudinal vibration dynamic frequency of the solid linear ultrasonic compressional vibration ultrasonic transformer of stretched wire is 21.40kHz, amplification coefficient 3.8, this reality
The longitudinal vibration dynamic frequency for applying example is 21.2kHz, small end beam frequency is 31.9kHz, amplification coefficient 8.6.
The linear ultrasonic compressional vibration ultrasonic transformer of stretched wire of the output end axial aperture of said structure, due to using linear in stretched wire
A rectangular through-hole is machined with a certain distance from the center line axial distance output end of ultrasonic transformer, at compressional vibration resonant frequency
Work, output end can also encourage the component of flexural vibrations in addition to the compressional vibration for having ultrasonic transformer.Compressional vibration and flexural vibrations
The superposition of component, the solid catenary shape ultrasonic transformer of the amplitude amplification factor material making more identical than same shape of the present embodiment
Amplification coefficient improves 1.68~3.3 times, substantially increases operating efficiency.
Embodiment 2
It perpendicular to the parallel plane of center line, side is hyperbolic cosine surface of revolution that the both ends of the surface of this example ultrasonic transformer 1, which are,
Clava, the geometry of side is with the curve in rectangular coordinate system
Y=(d/2) ch γ (L-x), wherein
It is the surface of revolution that rotary shaft is formed for bus, x-axis, 0≤x≤luffing pole length L, y is at coordinate x sections in formula
Radius, D is the outside diameter of ultrasonic transformer 1, and the big end of ultrasonic transformer 1 is input, small end is output end.The present embodiment ultrasonic transformer
Length L, the outside diameter D of ultrasonic transformer 1, the end diameter d physical dimension of ultrasonic transformer 1 and the material of making and embodiment 1
It is identical, it is to be machined with rectangular through-hole at 2mm in the center line axial distance small end t of ultrasonic transformer 1, the length b of rectangular through-hole is
18mm, the length b of rectangular through-hole are 0.15 times of luffing pole length L, and the width a of rectangular through-hole is 6mm, the width of rectangular through-hole
A is 0.3 times of the end diameter d of ultrasonic transformer 1.The linear ultrasonic compressional vibration ultrasonic transformer of stretched wire of the output end axial aperture of this structure
Compared with the linear ultrasonic compressional vibration ultrasonic transformer of solid stretched wire, it is calculated using ANSYS finite element softwares, solid stretched wire is linear super
The longitudinal vibration dynamic frequency of sound compressional vibration ultrasonic transformer is 21.40kHz, amplification coefficient 3.8, and the longitudinal vibration dynamic frequency of the present embodiment is
22.1kHz, small end beam frequency are 43.6kHz, amplification coefficient reaches 6.4.
Embodiment 3
It perpendicular to the parallel plane of center line, side is hyperbolic cosine surface of revolution that the both ends of the surface of this example ultrasonic transformer 1, which are,
Clava, the geometry of side is with the curve in rectangular coordinate system
Y=(d/2) ch γ (L-x), wherein
It is the surface of revolution that rotary shaft is formed for bus, x-axis, 0≤x≤luffing pole length L, y is at coordinate x sections in formula
Radius, D is the outside diameter of ultrasonic transformer 1, and the big end of ultrasonic transformer 1 is input, small end is output end.The present embodiment ultrasonic transformer
Length L, the outside diameter D of ultrasonic transformer 1, the end diameter d physical dimension of ultrasonic transformer 1 and the material of making and embodiment 1
It is identical, it is to be machined with rectangular through-hole, the outer hole wall of rectangular through-hole at 21.6mm in the center line axial distance small end t of ultrasonic transformer 1
The distance between small end t is 0.18 luffing pole length L, and the length b of rectangular through-hole is 72mm, and the length b of rectangular through-hole is change
0.6 times of width pole length L, the width a of rectangular through-hole is 16mm, and the width a of rectangular through-hole is the 0.8 of ultrasonic transformer end diameter d
Times.The linear ultrasonic compressional vibration ultrasonic transformer of stretched wire of the output end axial aperture of this structure and the linear ultrasonic compressional vibration of solid stretched wire
Ultrasonic transformer is compared, and is calculated using ANSYS finite element softwares, the compressional vibration frequency of the solid linear ultrasonic compressional vibration ultrasonic transformer of stretched wire
Rate is 21.40kHz, amplification coefficient 3.8, and the longitudinal vibration dynamic frequency of the present embodiment is 12.9kHz, small end beam frequency is
11.9kHz, amplification coefficient reach 12.6.
Embodiment 4
In embodiment 1~3 more than, the geometry of ultrasonic transformer 1, material and embodiment 1 used in ultrasonic transformer 1 are made
Identical, luffing pole length L is 40mm, and the outside diameter D and luffing pole length L of ultrasonic transformer 1 ratio are identical with corresponding embodiment,
End diameter d is less than in the range of 2mm than outside diameter D arbitrarily to be chosen, and the outside diameter D of the present embodiment ultrasonic transformer 1 is 6mm,
End diameter d is 4mm, in the centerline axis of ultrasonic transformer 1 to being machined with rectangular through-hole on the inside of small end, the outer hole wall of rectangular through-hole with
The distance between small end t and luffing pole length L ratio are identical with corresponding embodiment.The length b of rectangular through-hole is 6mm, rectangle
The width a of through hole is 1.2mm, and the length b of rectangular through-hole is 0.15 times of luffing pole length L, and the width a of rectangular through-hole is luffing
0.3 times of bar end diameter d.
Embodiment 5
In embodiment 1~3 more than, the geometry of ultrasonic transformer 1, material and embodiment 1 used in ultrasonic transformer 1 are made
Identical, luffing pole length L is 200mm, the outside diameter D and luffing pole length L of ultrasonic transformer 1 ratio and corresponding embodiment phase
Together, end diameter d is less than in the range of 2mm than outside diameter D and arbitrarily chosen, and the outside diameter D of the present embodiment width bar 1 is
80mm, the outside diameter D of width bar 1 are 0.4 times of luffing pole length L, and end diameter d is 40mm, in the centerline axis of ultrasonic transformer 1
To the ratio that the distance between rectangular through-hole, the outer hole wall and small end of rectangular through-hole t and luffing pole length L is machined with the inside of small end and
Corresponding embodiment is identical.The length b of rectangular through-hole is 120mm, and the width a of rectangular through-hole is 32mm, the length b of rectangular through-hole
For 0.6 times of luffing pole length L, the width a of rectangular through-hole is 0.8 times of ultrasonic transformer end diameter d.
Claims (1)
1. a kind of linear ultrasonic compressional vibration ultrasonic transformer of the stretched wire of output end axial aperture, the geometry of ultrasonic transformer (1) is both ends
Face is parallel plane, the clava that side is hyperbolic cosine surface of revolution perpendicular to center line, and hyperbolic cosine surface of revolution is
With the curve in rectangular coordinate system
Y=(d/2) ch γ (L-x), wherein
It is the surface of revolution that rotary shaft is formed for bus, x-axis, 0≤x≤luffing pole length L, L 120mm, y is coordinate x in formula
Radius at section, D are the outside diameter of ultrasonic transformer (1), and D 36mm, d are the end diameter of ultrasonic transformer (1), d 20mm, its
It is characterised by：In the centerline axis of ultrasonic transformer (1) rectangular through-hole, the outer hole wall and small end of rectangular through-hole are machined with to small end inner side
The distance between t be 12mm, the length b of rectangular through-hole is 36mm, width a is 10mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510177756.8A CN104785430B (en) | 2015-04-15 | 2015-04-15 | The linear ultrasonic compressional vibration ultrasonic transformer of stretched wire of output end axial aperture |
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| CN104785430A CN104785430A (en) | 2015-07-22 |
| CN104785430B true CN104785430B (en) | 2018-01-12 |
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| CN110522496B (en) * | 2019-08-30 | 2020-12-22 | 盈甲医疗科技(北京)有限公司 | Ultrasonic surgical instrument amplitude transformer and ultrasonic surgical instrument thereof |
| CN111085382B (en) * | 2019-12-30 | 2021-06-11 | 北京航空航天大学 | Non-nozzle type spraying device |
| CN112474586B (en) * | 2020-11-23 | 2021-08-10 | 宁波格劳博智能工业有限公司 | Intelligent cleaning and detecting production line for laminated digital battery core storage and transportation device |
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| CN104014473A (en) * | 2014-05-16 | 2014-09-03 | 中国计量学院 | Large-amplitude sandwich-type piezoelectric ultrasonic compound transducer |
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| CN2429268Y (en) * | 2000-05-26 | 2001-05-09 | 严卓理 | Conic amplitude amplifier |
| DE102012200666B4 (en) * | 2012-01-18 | 2014-09-11 | Söring GmbH | Sonotrode, surgical instrument with a sonotrode and production method for a sonotrode |
| US8950458B2 (en) * | 2012-04-27 | 2015-02-10 | Sonics & Materials Inc. | System and method for mounting ultrasonic tools |
| DE102013202766A1 (en) * | 2013-02-20 | 2014-08-21 | Ms Spaichingen Gmbh | Rundsonotrode |
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