CN109079665A - A kind of ultrasonic shot peening high-speed uniform processes the system and method in various type faces - Google Patents
A kind of ultrasonic shot peening high-speed uniform processes the system and method in various type faces Download PDFInfo
- Publication number
- CN109079665A CN109079665A CN201811014993.2A CN201811014993A CN109079665A CN 109079665 A CN109079665 A CN 109079665A CN 201811014993 A CN201811014993 A CN 201811014993A CN 109079665 A CN109079665 A CN 109079665A
- Authority
- CN
- China
- Prior art keywords
- peening
- shot
- connector
- amplitude transformer
- section
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/006—Treatment of used abrasive material
Abstract
The invention discloses the systems that a kind of ultrasonic shot peening high-speed uniform processes various type faces, including the first connector, vibration amplitude transformer, mixer, shot-peening filling device, jet mechanism, workbench and control system；The workbench is provided with the driving mechanism that workpiece can be driven to feed, and clamping workpiece is in driving mechanism；Described vibration amplitude transformer one end is embedded in the first connector, and the other end is provided with the end face for the shot-peening that rebounds, and the vibration amplitude transformer is equipped with the opposite piezoelectric actuator in a pair of of position, and the piezoelectric actuator is connect with supersonic generator；The jet mechanism is used to compressed gas pouring mixer；The shot-peening filling device is used to for shot-peening being sent into mixer；The mixer is for mixing compressed gas with shot-peening.The present invention realizes the high-speed ultrasonic shot-peening processing of larger-diameter working media, can be processed larger concave surface, realizes male and female face and the control of uniformity precision, can be used for processing the surface treatment of all kinds of curved surfaces.
Description
Technical field
The present invention relates to mechanic shot peening manufacture fields, process various types more particularly to a kind of ultrasonic shot peening high-speed uniform
The system and method in face.
Background technique
Ultrasonic shot peening processing method is widely used in the various process of surface treatment of workpiece, can significantly reduce workpiece surface
Residual stress, improve the fatigue strength of workpiece, and help to be formed and combine for the convex-concave of high-intensitive connection or the connection of lubrication
Face.But due to the limitation of ultrasonic shot peening processing realization principle, the speed of shot-peening, machining area precision is caused to control and add
The uniformity of work is difficult to control, and ultrasonic shot peening processes to form usual surface as shown in Figure 1, it is difficult to by workpiece surface process compared with
Big concave surface, relatively large concave surface more help improve the fatigue resistance of workpiece surface, and the relatively large medium of diameter is situated between
The process velocity of matter is lower, it is difficult to process larger concave surface, be unfavorable for shot-peening operation.
Summary of the invention
The present invention is directed to solve above-mentioned technical problem at least to a certain extent.For this purpose, the present invention proposes a kind of shot-peening speed
Spend the system that high ultrasonic shot peening high-speed uniform processes various type faces.
The technical solution adopted by the present invention to solve the technical problems is: a kind of ultrasonic shot peening high-speed uniform processing is various
The system in type face, the first connector, vibration amplitude transformer, mixer, shot-peening including workbench and setting on the table are filled out
Fill set, jet mechanism, driving mechanism, control system；For driving workpiece to feed, clamping workpiece is driving the driving mechanism
On motivation structure；Described vibration amplitude transformer one end is embedded in the first connector, and the other end is provided with the end face for the shot-peening that rebounds,
The vibration amplitude transformer is equipped with the opposite piezoelectric actuator in a pair of of position, and two piezoelectric actuators are along perpendicular to axis
The setting of direction interval, the piezoelectric actuator connect with supersonic generator；The shot-peening filling device is for sending shot-peening
Enter in mixer；The jet mechanism is used to compressed gas pouring mixer；The mixer is located in vibration amplitude transformer
Shot-peening is sprayed to the end face of vibration amplitude transformer for mixing compressed gas with shot-peening by side, and shot-peening rebounds by end face to be accelerated
The workpiece of lower section is processed afterwards；The control system is connect to control its work with jet mechanism, driving mechanism.
It further, further include shot-peening recovering mechanism and shot-peening conveyer, the shot-peening recovering mechanism is for collecting quilt
Mixer sprays and to the shot-peening that work pieces process is crossed, and the shot-peening conveyer connect with shot-peening recovering mechanism and can be by shot-peening
The shot-peening that recovering mechanism is collected is re-fed into shot-peening filling device.
Further, first connector is provided with inner cavity；The vibration amplitude transformer inserting is in the lumen；The vibration
Amplitude transformer includes the cooperation positioning section set gradually in order, the second connector construction section, actuator construction section, third connection
Part construction section and shot-peening acting section；The cooperation positioning section and shot-peening acting section are located at vibration amplitude transformer both ends, the cooperation
Positioning section is connected with intracavity bottom cooperation, and the shot-peening acting section outer end face is for the shot-peening that rebounds；The second connector peace
The second connector is installed between dress section and interior cavity wall；There are two the piezoelectric actuator settings and position is relatively installed
In actuator construction section；The third connector construction section is provided with the first groove, between first groove and interior cavity outer wall
Third connector is installed, the third connector is fixedly connected with the first connector.
Further, first groove and third connector are correspondingly arranged is arranged there are two and along axis interval.
Further, the intracavity bottom is provided with circular groove, is equipped with the first gasket at circular groove, and described first
Gasket outer end is provided with cone-shaped groove, and the cooperation positioning section matches with cone-shaped groove and is inserted into that be mounted on cone recessed
In slot.
Further, the second connector construction section and actuator construction section form a multi-diameter shaft, and the first linkage section arrives
Actuator construction section diameter is sequentially reduced, and the piezoelectric actuator outer ring is provided with circlip, and the circlip is close to the second connector
The periphery of construction section is provided with step, and the step and the second connector construction section form energy the second connector of Matching installation
Second groove.
Further, the mixer includes that air flue and shot-peening are added road, and the air flue is towards the outer end end face of vibration amplitude transformer
Setting, the shot-peening are added in the middle part of road end and air flue and are connected to, and the jet mechanism is used to compressed gas pouring air flue, institute
It states shot-peening filling device and road is added for shot-peening to be sent into shot-peening.
It further, further include guide cylinder, the guide cylinder is tapered, and the guide cylinder setting is acted in workpiece and shot-peening
On shot-peening path between section.
The present invention also provides a kind of users of system that various type faces are processed based on above-mentioned ultrasonic shot peening high-speed uniform
Method includes the following steps:
Step 1: by clamping workpiece in the driving mechanism of workbench；
Step 2: while jet mechanism and shot-peening filling device are opened, high pressure gas mixes shot-peening and sprays from mixer
On to the end face of vibration amplitude transformer end to vibrate amplitude transformer axle center as in the border circular areas in the center of circle, while ultrasonic wave occurs
Device is opened, and vibration amplitude transformer realizes axial vibration, shot-peening is through over vibration under the supersonic frequency electric energy excitation that piezoelectric actuator provides
The rebound and vibration of dynamic amplitude transformer process workpiece surface after accelerating；
Step 3: under the control of control system and the driving of driving mechanism, workpiece is carried out according to the profile in face to be processed
Uniform Movement realizes the uniform processing of machined surface, after the machined surface of workpiece all processes, halt system running.
Further, the shot-peening is sphere, and the diameter R and speed V of the shot-peening are arranged according to following formula,
Wherein α is the area of required indented region, unit m2；
H is the Rockwell hardness of workpiece to be processed, unit HRC；
The depth of concave region needed for δ, unit m；
K0For the coefficient of concave region depth and indented region area；
ρ is the density kg/m of selected working media (shot-peening)3。
The beneficial effects of the present invention are: the present invention to vibrate amplitude transformer and generate axially to shake using piezoelectric actuated generator
Dynamic, axial vibration carries out acceleration rebound to shot-peening, realizes the high-speed ultrasonic shot-peening processing of larger-diameter working media, can add
Work goes out larger concave surface, realizes male and female face and the control of uniformity precision.The surface treatment that can be used for processing all kinds of curved surfaces is being processed
There is more broad application prospect in the process of surface treatment of the more narrow gear teeth face in space.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the topography schema mapping of ultrasonic vibration shot-peening milled surface topography；
Fig. 2 is ultrasonic shot peening speed vector figure；
Fig. 3 is structural schematic diagram of the invention；
Fig. 4 is the structural schematic diagram for vibrating amplitude transformer；
Fig. 5 is the connection structure partial schematic diagram of circlip, piezoelectric actuator and the second connector.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Referring to Fig. 3, the system that a kind of ultrasonic shot peening high-speed uniform of the invention processes various type faces, including workbench 9 with
And be arranged in the first connector 1 on workbench 9, vibration amplitude transformer 2, mixer 3, shot-peening filling device 4, jet mechanism 5,
Driving mechanism 91, control system；The driving mechanism 91 is for driving workpiece 8 to feed, and 8 clamping of workpiece is in driving mechanism 91；
Described 2 one end of vibration amplitude transformer is embedded in the first connector 1, and the other end is provided with the end face for the shot-peening that rebounds, the vibration
Amplitude transformer 2 is equipped with the opposite piezoelectric actuator 6 in a pair of of position, and two piezoelectric actuators 6 are along the direction perpendicular to axis
Interval setting, the piezoelectric actuator 6 are connect with supersonic generator；The jet mechanism 5 is mixed for pouring compressed gas
Clutch 3；The shot-peening filling device 4 is used to for shot-peening being sent into mixer 3；The mixer 3 is located in vibration amplitude transformer 2
Shot-peening is sprayed to the end face of vibration amplitude transformer 2 for mixing compressed gas with shot-peening by side, and shot-peening rebounds by end face to be accelerated
The workpiece 8 of lower section is processed afterwards；The control system is connect with shot-peening filling device 4, jet mechanism 5, driving mechanism
To control its work.
In order to recycle and reuse shot-peening, this system further includes shot-peening recovering mechanism 41 and shot-peening conveyer
42, shot-peening conveyer 42 connect and is arranged and be situated between with shot-peening recovering mechanism 41, shot-peening filling device 4.The shot-peening
Recovering mechanism 41 sprays and for collecting mixed device 3 to the finished shot-peening of workpiece 8, the shot-peening conveyer 42 and spray
Ball recovering mechanism 41 connects and the shot-peening that shot-peening recovering mechanism 41 is collected can be re-fed into shot-peening filling device 4.In order to anti-
Only disperse after shot-peening processing excessively at random, it is difficult to collect, it is preferable that the vibration shot-peening acting section 26 of amplitude transformer 2, mixer 3 with
And workpiece 8 is in a confined space, shot-peening recovering mechanism 41 is arranged in confined space bottom, certain workbench 9
It can be set in confined space.Shot-peening recovering mechanism 41 and shot-peening conveyer 42 belong to common skill in shot-peening manufacture field
Art discloses a kind of bullet circulation and stress device of numerical control compressed air shotblasting machine such as patent CN201320804805.2, and shot-peening is filled out
Filling and setting 4 is only a shot-peening feeding mechanism, such as shot-peening filling device 4 specifically can be a hopper, and feed hopper bottom is set
A valve is set, feed hopper bottom is added road 32 with shot-peening and is connected to, and shot-peening can be fallen from hopper into mixer 3, shot-peening fortune
Send mechanism 42 that shot-peening is delivered in hopper, valve can be manually-operated gate or solenoid valve, and solenoid valve can be with control system
Connection, the automatic filling that shot-peening can be realized control, and certain shot-peening feeding mechanism belongs to common existing in shot-peening manufacture field
Technology can according to need and be selected accordingly, here with no restrictions.In addition driving mechanism 91 can also be there are many shape
Formula, when the revolving parts that the processing is simple, such as angular wheel, multi-diameter shaft part, driving mechanism 91 can be motor, motor
It is fixed on workbench 9, output shaft is arranged vertically upwards, and for output shaft by shaft coupling and intermediate axis connection, jackshaft top is logical
Key and angular wheel or ladder axis connection are crossed, motor drives angular wheel or multi-diameter shaft around its axis uniform rotation, can be realized
The uniform processing on tapered surface or cylindrical surface.Of course for the workpiece that can process more type, driving mechanism 91 can be machine
The multi-shaft interlocked driving structure of bed machining center, multi-shaft interlocked form already belong to mature existing skill in machine tool field
Art, selectable wide variety, is not particularly limited here.
First connector, 1 material is potassium steel, and the first connector 1 is located at 9 top of workbench, solid with 9 position of workbench
It is fixed, it can be directly fixedly connected with workbench 9, or be fixedly connected by intermediate structure.
First connector 1 is provided with inner cavity 11, and inner cavity 11 extends along its outer ring axis.Vibration amplitude transformer 2 is inserted into
In inner cavity 11, axis is overlapped with the axis of 1 outer ring of the first connector or inner cavity 11.The section of inner cavity 11 can be it is round or
Person's opposite side shape, in order to vibrate the nonvoluntary rotation of amplitude transformer 2, the section of the inner cavity 11 of this implementation is polygon, for transmitting and
Bear torsional moment, it is preferable that 11 section of inner cavity is regular hexagon, when one timing of external condition can keep its rigidity maximum.
The material of the vibration amplitude transformer 2 uses titanium alloy, and material loss is few in working frequency, and fatigue resistance is high, sound
Unit area impedance is small, can bear biggish vibration velocity and displacement amplitude.The vibration amplitude transformer 2 of stairstepping is at the abrupt change of cross-section
There is very big stress to concentrate, the problem of being broken because of fatigue is easy to happen close at mutation, therefore uses Gaussian curve at mutation
And circular arc, cone line transition, it can reduce stress lumped values.
As shown in Figure 3 and Figure 4, vibration amplitude transformer 2 includes that the cooperation positioning section 21, first set gradually in order connects
The 22, second connector construction section 23 of section, actuator construction section 24, third connector construction section 25 and shot-peening acting section 26.The
One linkage section 22, the second connector construction section 23, actuator construction section 24, third connector construction section 25 are cylindrical.
The cooperation positioning section 21 and shot-peening acting section 26 are located at vibration 2 both ends of amplitude transformer, and shot-peening acting section 26 is for rebounding and accelerating
Shot-peening.The cooperation positioning section 21 is connected with the cooperation of 11 bottom of inner cavity, it is preferable that 11 bottom of inner cavity is provided with round recessed
Slot is equipped with the first gasket 12 at circular groove, and 12 outer end of the first gasket is provided with cone-shaped groove, and the cooperation is fixed
Position section 21 is cone and matches with cone-shaped groove that the taper of circular cone is 1:12, and the cooperation insertion of positioning section 21 is mounted on circular cone
In connected in star, positioning section 21 and the first gasket 12 is cooperated to be used to transmit and bear axial load, 12 material of the first gasket is glass
Fiber and PET are formed according to sandwich of layers structure composite, and centre is PET, and inside and outside is glass fibre.
The second connector 231, the second connector are installed between the second connector construction section 23 and 11 inner wall of inner cavity
231 inner rings can be circle or other shapes, in the present embodiment, in order to which the second connector 231 can transmit torque, it is preferable that
Transmit torque using polyhedron connection, the outer ring in 231 section of the second connector be with the matched polygon in inner cavity 11,
Second connector, the 231 section inner ring and 23 section of the second connector construction section are the polygon being mutually matched, and section is
It is non-circular, torque can be transmitted.Second connector 231 is fixedly connected with the first connector 1, it is preferable that second connection
231 section inner ring of part and 23 section of the second connector construction section are octagon, and the section outer ring of the second connector 231 is positive
Hexagon.Further, the connection type of the second connector 231 and the first connector 1 is preferably second connector 231
First connector 1 is provided with corresponding bolt hole to be bolted fixed and pre-tighten, there are three bolt is specifically arranged,
The bolt hole of second connector 231 is blind hole, is equipped between second connector 231 and the second connector construction section 23
First washer of adaptation.First washer section be octagon, by glass fibre and PET according to sandwich of layers structure composite and
At centre is PET, and inside and outside is glass fibre, with high elastic modulus and has certain lubricating action, in vibration amplitude transformer
During reversed torsion, it is not likely to produce fatigue rupture.The diameter of axle of second connector construction section 23 is few compared with the first linkage section 22
0.1-0.2mm。
24 diameter of axle of actuator construction section is about the 2/3 of the second connector construction section 23, and piezoelectric actuator 6 is mounted on actuating
Device construction section 24, piezoelectric actuator 6 for realizing vibration amplitude transformer axial resonance vibration.Preferably, second connection
Part construction section 23 and actuator construction section 24 form a multi-diameter shaft, the first linkage section 22 to 24 diameter of actuator construction section according to
Secondary reduction, actuator construction section 24 are arranged at intervals with a pair of for installing piezoelectric actuator 6 and matching peace radially
Fill groove.As shown in figure 5, outer ring is provided with circlip 61 and is fixedly clamped, described after piezoelectric actuator 6 installs installation groove
Circlip 61 is provided with step close to the periphery of the second connector construction section 23, and the step surface connects in regular hexahedron and with second
The composition of fitting construction section 23 can Matching installation the second connector 231 the second groove, such second connector 231 some
It is mounted on the step of circlip 61, is equivalent to and is fixedly clamped to circlip 61, so that piezoelectric actuator 6 is fixed more
It is firm, and the step of circlip 61 has position-limiting action to the second connector 231.
The third connector construction section 25 is provided with the first groove 251, first groove 251 and 11 outer wall of inner cavity
Between third connector 2511 is installed, the third connector 2511 is fixedly connected with the first connector 1, and the third connects
The outer ring in 2511 section of fitting is to match with inner cavity 11, is provided with circular pad between third connector 2511 and the first groove 251
Circle.Above-mentioned second connector 231, third connector 2511, the first washer, rounded washers and circlip 61 are by high resiliency mould
The material of amount is made, and is clamped by deformation into vibration amplitude transformer 2.
The 2511 section inner ring of third connector is circle, it is preferable that first groove 251 and third connector
2511 be correspondingly arranged there are two and along axis interval be arranged.Wherein, the node of vibration mode of the vibration amplitude transformer 2 is connect with second
The position of 231, two third connectors 2511 of part is overlapped.When installation, the second connector 231 and one of third connector
2511 rotate 180 °, and differential seat angle is 180 ° between two third connectors 2511, mainly reduce as far as possible since installation connects
Unbalance dynamic quality caused by fitting.
In the present embodiment, the junction of different sections is all made of optimal arc transition, the radius R of arc transition3By connecting
Locate the equivalent diameter D of adjacent two sections of cross sections, length L, D2, length L2 and vibration amplification coefficient N, reference and optimum transfer are round
Arc radius and the relationship of amplification coefficient N part determine.Determine step: radius of corner R3, size determines step are as follows:
Step 1: foundationFind out N value；
Step 2: foundationFind out A value；
Third step checks the relation table between horn,stepped optimum transfer arc radius and N, obtains β value；
4th step, according to R3=β D1, find out R3Value；
Wherein D1For the equivalent diameter of hexagonal prisms section cross section, L1For hexagonal prisms segment length, D2For changeover portion middle position
Cross section equivalent diameter, L2For transition section length, N is amplification coefficient.
Reach good effect for the vibrational energy of shot-peening acting section 26 and guarantee the transmitting of axial vibration as far as possible,
The actuator construction section 24 is to being disposed with extended segment 27 and intermediate shaft part 28 between third connector construction section 25.Institute
It is maximum stating intermediate shaft part 28 diameter in entirely vibration amplitude transformer, connecting for further uniformly transferring axial vibration to third
Fitting construction section 25.The length of extended segment 27 and intermediate shaft part 28 is adjusted with specific reference to actual demand.
It is provided with the second linkage section 29 between the third connector construction section 25 and shot-peening acting section 26, described second
Linkage section 29 includes changeover portion 291 and extension 292, and it is Gaussian curve that 291 outer ring of changeover portion, which extends curve, from the
Three connector construction sections 25 gradually become smaller to 292 diameter of extension, and extension 292 is one section of cylindrical body.
Changeover portion 291 is mainly used for axial vibration reaching very high vibration velocity, meet efficient roughing,
High vibration rate request when all kinds of roller gears is finished, makes it that there is faster vibration velocity within certain vibration period,
Improve workpiece surface quality, including surface roughness and residual stress etc..Extension 292 is mainly used for high amplitude and vibration
Dynamic speed passes to shot-peening acting section 26, improves shot-peening acting section 26 to the acceleration rebound effect of shot-peening, improves the speed of shot-peening
Degree, realizes that the shot-peening of larger quality can be with biggish speed workpieces processing surface.
It is detailed below, the structure and working principle of mixer 3, the mixer 3 includes that air flue 31 and shot-peening are added
The outer end end face in road 32, the air flue 31 towards vibration amplitude transformer 2 is arranged, and 31 middle part of 32 end of road and air flue is added in the shot-peening
Connection, the jet mechanism 5 are used to pour compressed gas air flue 31, and the shot-peening filling device 4 is for shot-peening to be sent into
Road 32 is added in shot-peening.Shot-peening is sent into shot-peening and road 32 is added by shot-peening filling device 4, while jet mechanism 5 is by the compressed gas of high pressure
Body pours air flue 31, and shot-peening is added road 32 from shot-peening and enters air flue 31 and as compressed gas is ejected from air flue 31, shot-peening
Speed is increased dramatically under the drive of compressed gas, and shot-peening collision is sprayed if normal in the end face of shot-peening acting section 26
Ball collision end face has speed loss, but passes through the acceleration and rebound of the axial vibration of shot-peening acting section 26, and shot-peening obtains speed
Degree is promoted, and is processed to the workpiece surface of lower section.In order to concentrated processing workpiece region, ultrasonic shot peening high-speed uniform adds
The system in the various type faces of work further includes guide cylinder 7, and the guide cylinder 7 is tapered, and the guide cylinder 7 is arranged in workpiece and shot-peening
On shot-peening path between acting section 26, guide cylinder 7 is oriented to the shot-peening in hole through its center, so that shot-peening is concentrated and adds
Some region of work workpiece.The velocity variations of shot-peening are as shown in Fig. 2, V1 is that working media shot-peening is ejected from mixer
Speed, V2y be working media shot-peening from the speed that is ejected in mixer and vibration amplitude transformer motivate speed after lower y
To aggregate velocity, V2 is the lower shot peening velocity after vibration amplitude transformer excitation；V3y is working media shot-peening from mixing
For higher y after the speed and vibration amplitude transformer excitation speed that eject in device to aggregate velocity, V3 is by vibration amplitude transformer
Higher shot peening velocity after excitation.The speed of shot-peening is amplified by mixer and vibration amplitude transformer, is realized relatively large
Working media with biggish speed spray workpiece surface.
Wherein, the angle of air flue 31 and horizontal direction is first angle, and the angle that road 32 is added in air flue 31 and shot-peening is the
Two angles.In the present embodiment, first angle is 15 ° to 30 °, and mixer 3 is fixed on the table, and angle can be according to speed
And shot-peening machining area area needs to adjust；The second angle of mixer 3 is 30 ° -45 °；Workpiece to be processed and vibration luffing
The spacing of bar 2 can be kept fixed, can also according to its process homogeneous area rea adjusting during away from；By the song of workpiece to be processed
, according to area Uniform Movement, the uniformity control of machining area is realized in the selected position of machining area foundation in face；Machining area
The specific location of middle shot-peening is determined by the aggregate velocity after incident shot-peening and vibration amplitude transformer excitation speed.According to determining spray
The position that ball projects, control system controls driving mechanism and carries out Uniform Movement according to the face to be processed of workpiece, to realize processing
The uniformity in face controls.Shot-peening acting section wherein is injected in by the shot-peening that mixer 3 comes out to vibrate amplitude transformer axle center for circle
The heart, radius are in the center of circle region of 1-2mm.This is the end in order to avoid vibration amplitude transformer other than axial vibration speed
Other acceleration excitation working media shot-peenings, influence the uniformity in shot-peening workpieces processing region.
Piezoelectric actuator 6 is connect with supersonic generator by electric wire, and vibration frequency signal passes through wireless transmission
Device and wireless receiver transmit, and are coded and decoded by coding mechanism.Piezoelectric actuator is specially ultrasonic transducer, will be ultrasonic
The supersonic frequency electric energy that wave producer generates is converted into the mechanical energy of ultrasonic vibration, and to vibrate amplitude transformer realization axial vibration.
Vibration amplitude transformer 2 exists focuses ultrasonic energy for amplifying vibration displacement and speed that piezoelectric actuator generates
On lesser area, to accelerate to shot-peening.Amplitude transformer 2 is vibrated under the incentive action of a pair of of piezoelectric actuator 6, is realized
Axial vibration；The end transition position for vibrating amplitude transformer uses Gaussian curve transition, and shot-peening acting section 26 is then inverted conical shape
Shape amplifies vibration plane, this is to reduce cross to improve the bending stiffness for vibrating amplitude transformer in high-speed shot blasting process
Deviate scheduled path to shot-peening caused by vibrating, avoids changing for when vibrating the return motion of amplitude transformer axial direction shot-peening road strength
A possibility that change；Principle using multiple Gaussian curve transition is that the amplitude transformer of more Gaussian curve transition can generate first
Higher displacement, is capable of providing vibrating effect, provides shot-peening acceleration capacity, meets the transversal cross towards compared with small area of larger area
The requirement of section transitions.
The present invention also provides a kind of users of system that various type faces are processed based on above-mentioned ultrasonic shot peening high-speed uniform
Method, steps are as follows:
Step 1: by clamping workpiece in the driving mechanism of workbench；
Step 2: control system opens jet mechanism 5, while starting shot-peening filling device 4, and high pressure gas mixes spray
Ball from mixer 3 be ejected to vibration 2 end of amplitude transformer end face (i.e. the end face of shot-peening acting section 26) on to vibrate amplitude transformer
Axle center is the preferred 1-2mm of border circular areas radius in the border circular areas in the center of circle, while supersonic generator is opened, and vibrates amplitude transformer
2 under the supersonic frequency electric energy excitation that piezoelectric actuator 6 provides, and realizes axial vibration, rebound of the shot-peening by vibration amplitude transformer 2
Workpiece surface is processed after accelerating with vibration；
Step 3: under the control of control system and the driving of driving mechanism, workpiece is carried out according to the profile in face to be processed
Uniform Movement realizes the uniform processing of machined surface, after the machined surface of workpiece all processes, halt system running.
In the present invention, working media is shot-peening, in order to which shot-peening processing can be optimal effect, is obtained according to following formula
The quality m, radius R, the speed v of shot-peening of single shot-peening.
Wherein α is the area of required indented region, unit m2；
H is the Rockwell hardness of workpiece to be processed, unit HRC；
The depth of concave region needed for δ, unit m；
K0For the coefficient of concave region depth and indented region area；
ρ is the density kg/m of selected working media (shot-peening)3。
And shot-peening can obtain its quality m according to its radius R and density p for sphere.
Wherein k0It is obtained by following manner,
Relationship between indented region and pressure F are as follows:
From K known to above formula0It is determined by F, δ, α, therefore pressure F, unit N, indented area can be obtained by impression impact test
Domain area α, depth of cup δ, and least square method linear fit obtains K0。
The above embodiments are merely illustrative of the technical solutions of the present invention and is not intended to limit it, all without departing from this hair
Any modification of bright spirit and scope or equivalent replacement, shall fall within the scope of the technical solution of the present invention.
Claims (10)
1. the system that a kind of ultrasonic shot peening high-speed uniform processes various type faces, it is characterised in that: including workbench (9) and setting
The first connector (1), vibration amplitude transformer (2), mixer (3), shot-peening filling device (4), jet mechanism on workbench (9)
(5), driving mechanism (91), control system；
The driving mechanism (91) is for driving workpiece to feed, and clamping workpiece is on driving mechanism (91)；
The vibration amplitude transformer (2) one end is embedded in the first connector (1), and the other end is provided with the end face for the shot-peening that rebounds,
The vibration amplitude transformer (2) is equipped with the opposite piezoelectric actuator in a pair of of position (6), and two piezoelectric actuators (6) are along vertical
Directly it is arranged in the direction interval of axis, the piezoelectric actuator (6) connect with supersonic generator；
The jet mechanism (5) is used to compressed gas pouring mixer (3)；
The shot-peening filling device (4) is used to for shot-peening being sent into mixer (3)；
The mixer (3) is located above vibration amplitude transformer (2), and for mixing compressed gas with shot-peening, shot-peening is sprayed to vibration
The end face of dynamic amplitude transformer (2), shot-peening rebound after acceleration accelerates by end face and process to the workpiece of lower section；
The control system is connect with jet mechanism (5), supersonic generator, driving mechanism (91) to control its work.
2. the system that ultrasonic shot peening high-speed uniform according to claim 1 processes various type faces, it is characterised in that: further include
Shot-peening recovering mechanism (41) and shot-peening conveyer (42), the shot-peening recovering mechanism (41) is for collecting mixed device (3)
Spray and to the shot-peening that work pieces process is crossed, the shot-peening conveyer (42) connect with shot-peening recovering mechanism (41) and can be by shot-peening
The shot-peening that recovering mechanism (41) is collected is re-fed into shot-peening filling device (4).
3. the system that ultrasonic shot peening high-speed uniform according to claim 1 processes various type faces, it is characterised in that: described
A connection piece (1) is provided with inner cavity (11)；The vibration amplitude transformer (2) is inserted into inner cavity (11)；The vibration amplitude transformer (2)
Including cooperation positioning section (21), the second connector construction section (23), actuator construction section (24), third set gradually in order
Connector construction section (25) and shot-peening acting section (26)；
The cooperation positioning section (21) and shot-peening acting section (26) are located at vibration amplitude transformer (2) both ends, the cooperation positioning section
(21) it is connected with the cooperation of inner cavity (11) bottom, shot-peening acting section (26) outer end face is for the shot-peening that rebounds；
The second connector (231) are installed between the second connector construction section (23) and inner cavity (11) inner wall；
The piezoelectric actuator (6) is mounted on actuator construction section (24)；
The third connector construction section (25) is provided with the first groove (251), and first groove (251) and inner cavity (11) are outside
It is equipped between wall third connector (2511), the third connector (2511) is fixedly connected with the first connector (1).
4. the system that ultrasonic shot peening high-speed uniform according to claim 3 processes various type faces, it is characterised in that: described
One groove (251) and third connector (2511) are correspondingly arranged to be arranged there are two and along axis interval.
5. the system that ultrasonic shot peening high-speed uniform according to claim 3 processes various type faces, it is characterised in that: in described
Chamber (11) bottom is provided with circular groove, is equipped at circular groove the first gasket (12), and the first gasket (12) outer end is set
It is equipped with cone-shaped groove, the cooperation positioning section (21), which matches and is inserted into cone-shaped groove, to be mounted in cone-shaped groove.
6. the system that ultrasonic shot peening high-speed uniform according to claim 3 processes various type faces, it is characterised in that: described
Two connector construction sections (23) and actuator construction section (24) form a multi-diameter shaft, and the first linkage section (22) to actuator is installed
Section (24) diameter is sequentially reduced, and piezoelectric actuator (6) outer ring is provided with circlip (61), and the circlip (61) connects close to second
The periphery of fitting construction section (23) is provided with step, and the step and the second connector construction section (23) composition can Matching installations the
Second groove of two connectors (231).
7. the system that ultrasonic shot peening high-speed uniform according to claim 3 processes various type faces, it is characterised in that: described mixed
Clutch (3) includes that road (32) are added in air flue (31) and shot-peening, and the outer end end face of the air flue (31) towards vibration amplitude transformer (2) is set
It sets, the shot-peening is added in the middle part of road (32) end and air flue (31) and is connected to, and the jet mechanism (5) is for pouring compressed gas
Air flue (31), the shot-peening filling device (4), which is used to shot-peening being sent into shot-peening, is added road (32).
8. the system that ultrasonic shot peening high-speed uniform according to claim 3 processes various type faces, it is characterised in that: further include
Guide cylinder (7), the guide cylinder (7) is tapered, the spray that the guide cylinder (7) is arranged between workpiece and shot-peening acting section (26)
On ball path.
9. processing the user of the system in various type faces based on the described in any item ultrasonic shot peening high-speed uniforms of claim 1 to 8
Method, which comprises the steps of:
Step 1: by clamping workpiece in the driving mechanism (91) of workbench；
Step 2: while jet mechanism (5) and shot-peening filling device (4) are opened, high pressure gas mixes shot-peening from mixer (3)
Be ejected on the end face of vibration amplitude transformer (2) end to vibrate amplitude transformer axle center as in the border circular areas in the center of circle, while ultrasound
Wave producer is opened, and vibration amplitude transformer (2) realizes axial vibration under the supersonic frequency electric energy excitation that piezoelectric actuator (6) provides,
Shot-peening processes workpiece surface with speed V after the rebound and vibration for vibrating amplitude transformer (2) accelerate；
Step 3: under the control of control system and the driving of driving mechanism (91), workpiece is carried out according to the profile in face to be processed
Uniform Movement realizes the uniform processing of machined surface, after the machined surface of workpiece all processes, halt system running.
10. application method according to claim 9, it is characterised in that: the shot-peening is sphere, the diameter R of the shot-peening
It is arranged with speed V according to following formula,
Wherein α is the area of required indented region, unit m2；
H is the Rockwell hardness of workpiece to be processed, unit HRC；
The depth of concave region needed for δ, unit m；
K0For the coefficient of concave region depth and indented region area；
ρ is the density kg/m of selected working media (shot-peening)3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014993.2A CN109079665B (en) | 2018-08-31 | 2018-08-31 | System and method for uniformly processing various molded surfaces at high speed by ultrasonic shot blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014993.2A CN109079665B (en) | 2018-08-31 | 2018-08-31 | System and method for uniformly processing various molded surfaces at high speed by ultrasonic shot blasting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109079665A true CN109079665A (en) | 2018-12-25 |
| CN109079665B CN109079665B (en) | 2020-06-02 |
Family
ID=64840372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811014993.2A Active CN109079665B (en) | 2018-08-31 | 2018-08-31 | System and method for uniformly processing various molded surfaces at high speed by ultrasonic shot blasting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109079665B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332766A (en) * | 2018-10-31 | 2019-02-15 | 湖南工学院 | Deep hole high-efficiency cutting tool for processing and deep hole highly-efficient processing system in a kind of oil pump casing |
| CN110695856A (en) * | 2019-11-08 | 2020-01-17 | 北京航空航天大学 | Shot blasting method for thin-wall complex surface of aviation membrane disc |
| CN112808946A (en) * | 2021-01-18 | 2021-05-18 | 中南大学 | Method and device for efficiently processing cylindrical gear by ultrasonic cold pendulum grinding |
| CN114310679A (en) * | 2021-12-21 | 2022-04-12 | 中南大学 | Ultrasonic high-speed shot blasting system and method for strengthening high-strength tooth surface |
| CN114317916A (en) * | 2021-12-21 | 2022-04-12 | 中南大学 | Vibration amplitude transformer for strengthening high-strength surface high-speed ultrasonic shot blasting |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592331Y (en) * | 2003-01-20 | 2003-12-17 | 华东船舶工业学院 | Portable vibrating gun variable-amplitude rod |
| JP2004058268A (en) * | 2002-06-04 | 2004-02-26 | Kazuichi Seki | Air blast device |
| CN101940994A (en) * | 2010-10-18 | 2011-01-12 | 任保林 | Ultrasonic pulse resonance jet rotary spray-head device |
| CN102513942A (en) * | 2011-12-16 | 2012-06-27 | 南京航空航天大学 | Supersonic shot-peening forming method for single or double curvature integral panels |
| CN104531979A (en) * | 2014-12-23 | 2015-04-22 | 清华大学深圳研究生院 | Technology for refining metal surface crystal grains by electric pulse and ultrasonic coupling |
| CN106694932A (en) * | 2017-03-11 | 2017-05-24 | 河南理工大学 | General frequency matching longitudinal-torsional compound ultrasonic vibration milling and drilling device |
| CN107630127A (en) * | 2017-08-07 | 2018-01-26 | 蔡晋 | A kind of swing type ultrasonic shot peening strengthening device |
| CN107739798A (en) * | 2017-10-24 | 2018-02-27 | 山东大学 | A kind of pressure-auxiliary ultrasonic vibration can fitting surface intensifying device and method |
-
2018
- 2018-08-31 CN CN201811014993.2A patent/CN109079665B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004058268A (en) * | 2002-06-04 | 2004-02-26 | Kazuichi Seki | Air blast device |
| CN2592331Y (en) * | 2003-01-20 | 2003-12-17 | 华东船舶工业学院 | Portable vibrating gun variable-amplitude rod |
| CN101940994A (en) * | 2010-10-18 | 2011-01-12 | 任保林 | Ultrasonic pulse resonance jet rotary spray-head device |
| CN102513942A (en) * | 2011-12-16 | 2012-06-27 | 南京航空航天大学 | Supersonic shot-peening forming method for single or double curvature integral panels |
| CN104531979A (en) * | 2014-12-23 | 2015-04-22 | 清华大学深圳研究生院 | Technology for refining metal surface crystal grains by electric pulse and ultrasonic coupling |
| CN106694932A (en) * | 2017-03-11 | 2017-05-24 | 河南理工大学 | General frequency matching longitudinal-torsional compound ultrasonic vibration milling and drilling device |
| CN107630127A (en) * | 2017-08-07 | 2018-01-26 | 蔡晋 | A kind of swing type ultrasonic shot peening strengthening device |
| CN107739798A (en) * | 2017-10-24 | 2018-02-27 | 山东大学 | A kind of pressure-auxiliary ultrasonic vibration can fitting surface intensifying device and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332766A (en) * | 2018-10-31 | 2019-02-15 | 湖南工学院 | Deep hole high-efficiency cutting tool for processing and deep hole highly-efficient processing system in a kind of oil pump casing |
| CN110695856A (en) * | 2019-11-08 | 2020-01-17 | 北京航空航天大学 | Shot blasting method for thin-wall complex surface of aviation membrane disc |
| CN112808946A (en) * | 2021-01-18 | 2021-05-18 | 中南大学 | Method and device for efficiently processing cylindrical gear by ultrasonic cold pendulum grinding |
| CN114310679A (en) * | 2021-12-21 | 2022-04-12 | 中南大学 | Ultrasonic high-speed shot blasting system and method for strengthening high-strength tooth surface |
| CN114317916A (en) * | 2021-12-21 | 2022-04-12 | 中南大学 | Vibration amplitude transformer for strengthening high-strength surface high-speed ultrasonic shot blasting |
| CN114310679B (en) * | 2021-12-21 | 2023-09-01 | 中南大学 | Ultrasonic high-speed shot blasting system and method for strengthening high-strength tooth surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109079665B (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109079665A (en) | A kind of ultrasonic shot peening high-speed uniform processes the system and method in various type faces | |
| CN109249317A (en) | A kind of ultrasonic shot peening efficient uniform processes the system and application method in various type faces | |
| KR100894499B1 (en) | The bearing processing system using an ultrasonic nano crystal surface modifier and processing method using the same | |
| US8011096B2 (en) | Methods for increasing the fatigue life, of crankshafts | |
| CN110724804B (en) | Ultrasonic-assisted vibration shot peening strengthening process method for tooth root and tooth surface | |
| CN109261475A (en) | A kind of ultrasonic vibration secondary process axial direction-bending-twisted coupling vibration amplitude transformer | |
| CN100519773C (en) | Metal surface nanolizing method of supersonic wave high-energy surface machinery processing | |
| CN109079255A (en) | A kind of ultrasonic vibration assists the system and application method of efficient gear hobbing process | |
| CN109079256A (en) | A kind of ultrasonic vibration assists the system and application method of efficient Gear Milling | |
| CN111872836B (en) | Bearing steel ball surface strengthening processing equipment | |
| CN113681445B (en) | Efficient ultrasonic wave reinforced grinding equipment and method | |
| CN113186378B (en) | Shot type gear ultrasonic shot blasting strengthening device | |
| CN111843810A (en) | Bearing steel ball surface strengthening processing method | |
| CN111872837B (en) | Bearing steel ball surface strengthening processing device | |
| CN202369614U (en) | Surface nanometer reinforcing device for slender piston rod of hydraulic oil cylinder | |
| CN109332801A (en) | A kind of optimization method of efficient stable wire pulling method turbine disc mortise | |
| CN114310679B (en) | Ultrasonic high-speed shot blasting system and method for strengthening high-strength tooth surface | |
| CN106636588B (en) | One impulse making Nano surface and gradient-structure processing unit (plant) | |
| CN112893759B (en) | Impact-resistant upper die for ultrasonic cold pendulum grinding tooth forming | |
| CN112808946B (en) | Method and device for efficiently processing cylindrical gear by ultrasonic cold pendulum grinding | |
| CN109261474A (en) | A kind of system and method for ultrasonic vibration auxiliary Gear Shaping cylinder type gear | |
| CN102492804B (en) | Nanometer strengthening method of surface of long thin piston rod of hydraulic oil cylinder | |
| CN110396582B (en) | Metal component pore wall surface nanocrystallization device | |
| CN113400205B (en) | Pulse type spray head device with cleaning function | |
| CN117683983A (en) | Workpiece processing apparatus and processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |