CN107488779A - A kind of reflection type ultrasonic shot peening strengthening device of bore area - Google Patents
A kind of reflection type ultrasonic shot peening strengthening device of bore area Download PDFInfo
- Publication number
- CN107488779A CN107488779A CN201710668044.5A CN201710668044A CN107488779A CN 107488779 A CN107488779 A CN 107488779A CN 201710668044 A CN201710668044 A CN 201710668044A CN 107488779 A CN107488779 A CN 107488779A
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- China
- Prior art keywords
- hole
- shot
- shot peening
- bore area
- ultrasonic
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
Abstract
The present invention relates to a kind of reflection type ultrasonic shot peening strengthening device of bore area, the ultrasonic shot peening intensifying device of the bore area includes cover plate, workbench and ultrasonic vibration head, positioning hole is provided with the workbench, parts to be processed with through hole is fixed on the workbench by fixture, the ultrasonic vibration head is movably arranged in the positioning hole, the through hole of the parts to be processed is corresponding with the positioning hole, so that the ultrasonic vibration head from the lower port of through hole enters through hole after passing through positioning hole, the cover plate is fixed on the top of the parts to be processed, the upper port that hole is will pass through by cover plate blocks to form a cavity closed, some shot-peenings are placed with cavity, the lower surface of the cover plate is provided with male member, the male member is downwardly convex to be entered in through hole.The ultrasonic shot peening intensifying device of the present invention have consume energy it is small, save space, the advantages of environmental pollution is low, shot-peening dosage is few and reinforcing effect to inner bore of part face is good.
Description
Technical field
The present invention relates to piece surface strengthening device technical field, and in particular to a kind of reflection type ultrasonic spray of bore area
Ball intensifying device.
Background technology
Aero-engine disk axial workpiece includes：The turbine disk, compressor leaf dish, bearing, toothed disc etc., run in engine
During usually require bear high cycle fatigue load.To improve the fatigue resistance of such part, typically surface peening work is used
Skill carries out intensive treatment.
Shot peening strengthening is surface intensified technique most commonly seen in this area, and traditional shot blasting equipment mainly has two kinds pneumatically
Formula compressed air shotblasting machine and centrifugal shot-blasting machine, pneumatic type compressed air shotblasting machine are to supply compressed air by air compressor, and compressed air passes through spray
Cause negative pressure that shot-peening suction and high speed jetting nozzle, formation shot-peening stream are ejected into piece surface during rifle.Centrifugal blast machine is
Pill is thrown to by metal surface by the centrifugal force of impeller, makes piece surface hard the percussion of metal surface using shot
Change.But either there is problems with for pneumatic type compressed air shotblasting machine and centrifugal shot-blasting machine：
1. shot-peening usage amount is big, the material of the acquisition easy to process such as the chopping of shot-peening generally use, quartz sand, cast steel ball, and
The surface quality of this shot-peening can not ensure, easy damaged piece surface during shot-peening, increase the roughness of part, in addition, traditional
Shot blasting equipment can only be directed to part large area at strengthened, it is poor to the reinforcing effect of the endoporus hole wall of part.
2. in traditional shot blasting equipment course of work, because the impact velocity of shot-peening is larger (general up to 20-100m/s),
The high velocity impact friction parts surface of a large amount of shot-peenings, a large amount of dust and noise can be produced in working region, pollute working environment.
3. traditional shot blasting equipment is usually using compressed air unit or rotary centrifuger, equipment volume is big, power
Greatly, high energy consumption, it is unfavorable for energy-saving and emission-reduction.
The content of the invention
It is existing to solve it is an object of the invention to provide a kind of reflection type ultrasonic shot peening strengthening device of bore area
Shot-blasting machine have that shot-peening dosage is big, environmental pollution is big, high energy consumption, space-consuming and strengthens effect difference to inner bore of part and asks
Topic.
To achieve the above object, the present invention provides a kind of reflection type ultrasonic shot peening strengthening device of bore area, described interior
The ultrasonic shot peening intensifying device of hole surface includes cover plate, workbench and ultrasonic vibration head, and positioning hole is provided with the workbench,
Parts to be processed with through hole is fixed on the workbench by fixture, and the ultrasonic vibration head is movably arranged on institute
State in positioning hole, the through hole of the parts to be processed is corresponding with the positioning hole, so that the ultrasonic vibration head passes through positioning
The lower port of Kong Houcong through holes enters through hole, and the cover plate is fixed on the top of the parts to be processed, will by cover plate
The upper port of through hole blocks the cavity to form a closing, is placed with some shot-peenings in cavity, the lower surface of the cover plate is set
Male member is equipped with, the male member is downwardly convex to be entered in through hole.
Preferably, the material of the male member is high hardness alloy steel, and the male member is in inverted cone, pyramid or circle
Stage body, the taper of the male member is 45 °.
Preferably, the positioning hole and through hole are circular port.
Preferably, the diameter of the shot-peening is not less than 0.5mm.
Preferably, the gap between the positioning hole and ultrasonic vibration casing is less than 0.5mm.
Preferably, the aperture of the through hole of the parts to be processed is more than the external diameter of ultrasonic vibration casing, described to run through
Gap between hole and ultrasonic vibration casing is less than 0.5mm.
Preferably, the amplitude range of the ultrasonic vibration head is 10-120 μm, and the vibration frequency of the ultrasonic vibration head is
20kHz±500Hz。
The invention has the advantages that：The ultrasonic shot peening intensifying device of the bore area of the present invention has small, saving of consuming energy
Space, the advantages of environmental pollution is low, shot-peening dosage is few and reinforcing effect to inner bore of part face is good.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the ultrasonic shot peening intensifying device of bore area in the embodiment of the present invention 1.
Fig. 2 is the cross-sectional view of the ultrasonic shot peening intensifying device of bore area in the embodiment of the present invention 2.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
As shown in figure 1, the ultrasonic shot peening intensifying device of the bore area includes cover plate 6, workbench 3 and ultrasonic vibration first 1,
There is through hole in parts to be processed 5, positioning hole is provided with workbench 3, ultrasonic vibration first 1 is by the clamping activity of mechanical arm 2
In positioning hole, mechanical arm 2 holds ultrasonic vibration first 1 and can moved up and down along the axis direction of positioning hole, passes through
Control machinery arm 2 can change the depth that ultrasonic vibration first 1 enters through hole.Ultrasonic vibration first 1 passes through ultrasonic transformer and transducer
Connection, transducer electrically connect with supersonic generator, and supersonic generator produces 15-40KHz high frequency electric oscillation letter after being powered
Number transducer is sent to, the electric oscillation signal received is converted to high-frequency mechanical vibration by transducer, and ultrasonic transformer is defeated by transducer
Ultrasonic vibration first 1, the vibration width of first 1 output end of ultrasonic vibration are passed to after the vibration amplitude amplification for the high-frequency mechanical vibration for going out end
For value about at 50-120 μm, the vibration frequency of ultrasonic vibration first 1 is 20kHz ± 500Hz.Workbench 3 is platy structure, to be processed zero
Part 5 is fixed on workbench 3 by fixture, and the through hole of parts to be processed 5 is corresponding with positioning hole, makes ultrasonic vibration first 1
Can enter after through positioning hole from the lower port of through hole in through hole, positioning hole and through hole are circular port, positioning hole with
Gap between first 1 housing of ultrasonic vibration is less than 0.5mm, and the aperture of the through hole of parts to be processed 5 is more than first 1 shell of ultrasonic vibration
The external diameter of body, the gap between through hole and first 1 housing of ultrasonic vibration are less than 0.5mm.Cover plate 6 is fixed by screws in be processed
The top of part 5, cover plate 6 are used to be blocked in the spray sputtered from through hole upper port in the ultrasonic shot peening intensifying device course of work
Ball 4, the upper port that hole is will pass through by cover plate 6 block to form a hollow cavity, and the lower surface of cover plate is provided with male member 7,
Male member 7 is downwardly convex to be entered in through hole, and male member 7 is inverted round estrade in the present embodiment, and the material of male member 7 is high rigidity
Steel alloy, the effect of shot peening strengthening depends on the size of residual compressive stress and the size of case depth, and case depth is public
Formula：
Wherein, D is shot-peening diameter, and V is shot peening velocity, and α is incident angle, and K is correction factor, and H is material impact hardness.
It can be seen that coming from formula：Case depth is sinusoidal directly proportional to incident angle α, is maximum as sin α=1, now α
=90 °, therefore general use is sprayed perpendicular to reinforcing face, it is vertical even in that can not realize to improve the reinforcing effect of shot-peening
Directly sprayed in reinforcing face, its jet angle is more preferably greater than 45 °, so as to which the energy of shot-peening is fully delivered into through hole
Hole wall, in the present embodiment, the taper of round estrade is preferably 45 °.Most shot-peenings 4 are after first 1 excitation by ultrasonic vibration, with close
Moved upwards perpendicular to the direction of first 1 upper surface of ultrasonic vibration, shot-peening 4 is reflected after hitting the conical surface of male member 7, is changed
The direction of motion, the hole wall of through hole is hit with subvertical angle, realizes the reinforcing to through hole hole wall.Further, since chamber
Body is smaller, therefore need to only be put into a small amount of shot-peening 4, and the diameter of shot-peening 4 is not less than 0.5mm, in the present embodiment, the diameter of shot-peening 4
More than the diameter of traditional shot-peening 4, precision machined shot-peening may be selected also greater than traditional shot-peening 4, shot-peening 4 in quality, generally can be selected
Precise polished cast steel ball, the wolfram steel ball, ceramic pellet etc. of high intensity, precise screening is carried out to shot-peening 4, prevents defect shot-peening 4 from rushing
Hit material surface and produce damage, therefore its surface roughness of the part of ultrasonic shot peening reinforcing is smaller, suitable for being wanted to surface accuracy
Seek higher part.
Operation principle：According to the ultrasonic vibration first 1 of the size selection suitable dimension of part through hole, if being put into cavity
Dry shot-peening 4, cover plate 6 is fixed on to the top of parts to be processed 5, powered to supersonic generator, supersonic generator produces 15-
40KHz high-frequency electrical oscillator signal is sent to transducer, and the electric oscillation signal received is converted to high frequency machinery and shaken by transducer
Dynamic, ultrasonic transformer passes to ultrasonic vibration first 1, shot-peening 4 after the vibration amplitude of the high-frequency mechanical vibration of transducer output end is amplified
Under the impact of ultrasonic vibration first 1, shot-peening 4 is moved upwards with relatively low speed (typically within 10m/s), close to through hole hole
The part shot-peening 4 of wall directly hits the hole wall of through hole during upward motion, and most shot-peenings 4 are by ultrasonic vibration first 1
After excitation, moved upwards with being approximately perpendicular to the direction of first 1 upper surface of ultrasonic vibration, it is anti-after the conical surface of the shock male member 7 of shot-peening 4
Be shot out, change the direction of motion, with subvertical angle hit the through hole of parts to be processed 5 hole wall, realize to through
The reinforcing of hole hole wall.Because the impact velocity of shot-peening 4 is small, the quality of shot-peening 4 is high, and is sprayed in the ultrasonic shot peening intensifying device course of work
Ball 4 is all enclosed in shot-peening chamber, will not produce dust and noise pollution, in addition, ultrasonic shot peening equipment is small, low in energy consumption, nothing
Complicated bullet recovery transmission equipment is needed, therefore, its volume greatly reduces, and be able to can implement in less workplace.
Embodiment 2
As shown in Fig. 2 the ultrasonic shot peening intensifying device of the bore area includes cover plate 6, workbench 3 and ultrasonic vibration first 1,
The difference of the present embodiment and embodiment 1 in the present embodiment male member 7 be inverted cone in the present embodiment, circular cone
The taper of body is preferably 45 °.Compared to the male member 7 of the inverted round table body in embodiment 1, the middle male member 7 of the present embodiment can be by more
Shot-peening 4 reflect away, hit the hole wall of through hole, the reinforcing effect to through hole hole wall is better than embodiment 1.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be modified or improved, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (7)
1. a kind of reflection type ultrasonic shot peening strengthening device of bore area, the ultrasonic shot peening intensifying device of the bore area include
Cover plate, workbench and ultrasonic vibration head, it is characterised in that be provided with positioning hole on the workbench, there is the to be added of through hole
Work part is fixed on the workbench by fixture, and the ultrasonic vibration head is movably arranged in the positioning hole, described
The through hole of parts to be processed is corresponding with the positioning hole so that the ultrasonic vibration head pass through positioning hole after under through hole
Port enters through hole, and the cover plate is fixed on the top of the parts to be processed, and the upper port that hole is will pass through by cover plate is sealed
It is stifled to form a cavity closed, some shot-peenings are placed with cavity, the lower surface of the cover plate is provided with male member, the male member
It is downwardly convex to enter in through hole.
2. the reflection type ultrasonic shot peening strengthening device of bore area according to claim 1, it is characterised in that the male member
Material be high hardness alloy steel, the male member is in inverted cone, pyramid or round estrade, and the taper of the male member is
45°。
3. the reflection type ultrasonic shot peening strengthening device of bore area according to claim 2, it is characterised in that the positioning
Hole and through hole are circular port.
4. the reflection type ultrasonic shot peening strengthening device of bore area according to claim 3, it is characterised in that the shot-peening
Diameter be not less than 0.5mm.
5. the reflection type ultrasonic shot peening strengthening device of bore area according to claim 3, it is characterised in that the positioning
Gap between hole and ultrasonic vibration casing is less than 0.5mm.
6. the reflection type ultrasonic shot peening strengthening device of bore area according to claim 3, it is characterised in that described to be added
The aperture of the through hole of work part is more than the external diameter of ultrasonic vibration casing, between the through hole and ultrasonic vibration casing
Gap is less than 0.5mm.
7. the reflection type ultrasonic shot peening strengthening device of bore area according to claim 1, it is characterised in that the ultrasound
The amplitude range of vibration head is 10-120 μm, and the vibration frequency of the ultrasonic vibration head is 20kHz ± 500Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710668044.5A CN107488779A (en) | 2017-08-07 | 2017-08-07 | A kind of reflection type ultrasonic shot peening strengthening device of bore area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710668044.5A CN107488779A (en) | 2017-08-07 | 2017-08-07 | A kind of reflection type ultrasonic shot peening strengthening device of bore area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107488779A true CN107488779A (en) | 2017-12-19 |
Family
ID=60643537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710668044.5A Pending CN107488779A (en) | 2017-08-07 | 2017-08-07 | A kind of reflection type ultrasonic shot peening strengthening device of bore area |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640638A (en) * | 2019-09-03 | 2020-01-03 | 广州大学 | Ultrasonic strengthening processing equipment for surface of rolling element workpiece |
| CN111705196A (en) * | 2020-05-29 | 2020-09-25 | 江苏大学 | Device capable of realizing double-sided machining through one-time shot blasting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1336444A (en) * | 2000-07-28 | 2002-02-20 | 中国科学院金属研究所 | Nanometer structure forming method and special equipment therefor |
| US20060021410A1 (en) * | 2004-07-30 | 2006-02-02 | Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces | Shot, devices, and installations for ultrasonic peening, and parts treated thereby |
| US20090095042A1 (en) * | 2004-12-10 | 2009-04-16 | Mtu Aero Engines Gmbh | Method for Surface Blasting Cavities, Particularly Cavities in Gas Turbines |
| CN202155802U (en) * | 2010-01-28 | 2012-03-07 | 西门子公司 | Device for enabling surfaces of components of wind turbine to be reinforced |
| JP2015013299A (en) * | 2013-07-04 | 2015-01-22 | 日本軽金属株式会社 | Method for manufacturing semi-continuous casting/continuous casting mold of aluminum or aluminum alloy, and method for manufacturing cast product |
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2017
- 2017-08-07 CN CN201710668044.5A patent/CN107488779A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336444A (en) * | 2000-07-28 | 2002-02-20 | 中国科学院金属研究所 | Nanometer structure forming method and special equipment therefor |
| US20060021410A1 (en) * | 2004-07-30 | 2006-02-02 | Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces | Shot, devices, and installations for ultrasonic peening, and parts treated thereby |
| US20090095042A1 (en) * | 2004-12-10 | 2009-04-16 | Mtu Aero Engines Gmbh | Method for Surface Blasting Cavities, Particularly Cavities in Gas Turbines |
| CN202155802U (en) * | 2010-01-28 | 2012-03-07 | 西门子公司 | Device for enabling surfaces of components of wind turbine to be reinforced |
| JP2015013299A (en) * | 2013-07-04 | 2015-01-22 | 日本軽金属株式会社 | Method for manufacturing semi-continuous casting/continuous casting mold of aluminum or aluminum alloy, and method for manufacturing cast product |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640638A (en) * | 2019-09-03 | 2020-01-03 | 广州大学 | Ultrasonic strengthening processing equipment for surface of rolling element workpiece |
| CN110640638B (en) * | 2019-09-03 | 2021-04-02 | 广州大学 | Ultrasonic strengthening processing equipment for surface of rolling element workpiece |
| CN111705196A (en) * | 2020-05-29 | 2020-09-25 | 江苏大学 | Device capable of realizing double-sided machining through one-time shot blasting |
| CN111705196B (en) * | 2020-05-29 | 2021-07-20 | 江苏大学 | Device capable of realizing double-sided machining through one-time shot blasting |
| WO2021237906A1 (en) * | 2020-05-29 | 2021-12-02 | 江苏大学 | Apparatus capable of achieving double-sided machining by one-time shot peening |
| US11639534B2 (en) | 2020-05-29 | 2023-05-02 | Jiangsu University | Device for double-sided processing through single shot peening |
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Application publication date: 20171219 |