CN107584328A - A kind of ultrasonic vibration pressurizing unit and ultrasonic vibration pressurizing unit control method - Google Patents
A kind of ultrasonic vibration pressurizing unit and ultrasonic vibration pressurizing unit control method Download PDFInfo
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- CN107584328A CN107584328A CN201710821745.8A CN201710821745A CN107584328A CN 107584328 A CN107584328 A CN 107584328A CN 201710821745 A CN201710821745 A CN 201710821745A CN 107584328 A CN107584328 A CN 107584328A
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- extrusion head
- extruding force
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- ultrasonic vibration
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Abstract
The present invention provides a kind of ultrasonic vibration pressurizing unit and ultrasonic vibration pressurizing unit control method.Wherein, ultrasonic vibration pressurizing unit includes：Extrusion head, linear electric motors, pressure sensor and control system；Control system, for the comparing result according to actual value and preset value, control linear electric motors drive extrusion head adjustment position so that the actual value of extruding force is equal to preset value between extrusion head and workpiece.Wherein, ultrasonic vibration pressurizing unit control method includes：The preset value of extruding force between S1, setting extrusion head and workpiece；S2, the actual value for obtaining extruding force between extrusion head and workpiece, and according to actual value and the comparing result of preset value, adjust the position of extrusion head；S3, step S2 is repeated, until the actual value of extruding force is equal to preset value.A kind of ultrasonic vibration pressurizing unit provided by the invention and ultrasonic vibration pressurizing unit control method, extruding force can be accurately controlled, keep the extruding force constant magnitude in pressure process.
Description
Technical field
The present invention relates to metal processing sectors, are squeezed more particularly, to a kind of ultrasonic vibration pressurizing unit and ultrasonic vibration
Pressure device control method.
Background technology
At present, with the development of Ultrasonic machining technology, ultrasonic vibration is incorporated into surface intensified technique, that is, carries out ultrasound
Surface peening, it has also become the new direction of surface strengthening technology development.Ultrasonic surface reinforcement technique is in traditional surface peening work
Apply ultrasonic vibration on the basis of skill, realize the mutual supplement with each other's advantages of Ultrasonic machining technology and conventional surface reinforcement technique, reach excellent
Strengthen effect, and improve efficiency.Ultrasonic surface reinforcement technique preferably solve part element part abrasion, corrosion and
Tired problem, particularly in Low rigidity part, as thin-walled/sheet part and slender axles surface peening in terms of, achieve very well
Application effect.
During ultrasonic vibration extrusion process, extruding force is to influence after extrusion process one of workpiece surface quality very
Important parameter.It is insufficient contact between extrusion head and workpiece surface when extruding force is too small, it is difficult to produce modeling in piece surface
Property deformation or plastic deformation depth it is smaller；And when extruding force is excessive, the extrusion head contact between workpiece surface again
Tightly, extrusion head can be suppressed and does superaudible mechanical oscillation, in some instances it may even be possible to can make to be changed into pure friction between extrusion head and workpiece surface
Motion, so as to lose the effect of ultrasonic vibration extruding.During actual processing, extruding force size is difficult to accurate measurement and control
System, traditional way is to control extruding force using crushed increscence amount, but crushed increscence amount is not allowed due to the factors such as material difference
Easily controlled, so as to cause extruding force inaccurate.
The content of the invention
To overcome the shortcomings of accurately control extruding force existing for prior art, the present invention provides a kind of ultrasonic vibration and squeezed
Pressure device and ultrasonic vibration pressurizing unit control method.
According to an aspect of the present invention, a kind of ultrasonic vibration pressurizing unit includes：Extrusion head, linear electric motors, pressure pass
Sensor and control system；The pressure sensor is used for the actual value for measuring extruding force between the extrusion head and workpiece, and will
The actual value is sent to the control system；The control system is electromechanical with the pressure sensor and the straight-line electric respectively
Connection；The control system, for pair according to the preset value of extruding force between the actual value and the extrusion head and workpiece
Than result, the linear electric motors are controlled to drive the extrusion head adjustment position so that extruding force between the extrusion head and workpiece
Actual value be equal to the preset value.
Preferably, a kind of ultrasonic vibration pressurizing unit also includes：Sleeve and flange；The sleeve includes barrel forward end lid；
The flange is provided with a flange projection；The flange projection stretches out the side surface of the sleeve；The pressure sensor
First end is solidly connected with the barrel forward end lid, and the second end is solidly connected with the flange projection.
Preferably, a kind of ultrasonic vibration pressurizing unit also includes：Ultrasonic amplitude transformer；The ultrasonic amplitude transformer is arranged on described
In sleeve；The barrel forward end lid is stretched out in the end of the ultrasonic amplitude transformer；The end of the ultrasonic amplitude transformer is with installing
The extrusion head installed part for stating extrusion head is threadedly coupled.
Preferably, a kind of ultrasonic vibration pressurizing unit also includes：Ultrasonic transducer and ultrasonic-frequency power supply；The ultrasonic waves
Energy device is arranged in the sleeve；The ultrasonic transducer is connected with the ultrasonic amplitude transformer by the flange；It is described super
Acoustic-electric source is connected with the ultrasonic transducer by aviation plug.
Preferably, the flange also includes：Multiple flange guide pads；The flange projection and the multiple flange guide pad
It is uniformly distributed along the circumference of the flange；The inwall of the sleeve is provided with multiple and the multiple flange guide pad and corresponded
Cage guiding groove.
Preferably, the sleeve is arranged on the linear electric motors；The sleeve enters under the driving of the linear electric motors
Row axial stretching moves.
Preferably, the outside of the extrusion head installed part and the extrusion head is provided with pre-load nut；The pre-load nut is used
In the compression extrusion head installed part and the extrusion head.
Preferably, the shape of the extrusion head includes：It is spherical, cylindrical or oval；The extrusion head installed part and institute
The shape of pre-load nut and the form fit of the extrusion head are stated, to cause the pre-load nut to compress the extrusion head installed part
With the extrusion head.
According to another aspect of the present invention, a kind of ultrasonic vibration pressurizing unit control method includes：S1, setting extrusion head
The preset value of extruding force between workpiece；S2, the actual value for obtaining extruding force between extrusion head and workpiece, and according to the reality
Value and the comparing result of the preset value, adjust the position of the extrusion head；S3, step S2 is repeated, until the extruding
The actual value of extruding force is equal to the preset value between head and workpiece.
Preferably, it is described crowded according to the actual value and the comparing result of the preset value, adjustment in the step S2
The position of pressure head, further comprises：When the actual value is more than the preset value, the extrusion head is moved afterwards；When the reality
When value is less than the preset value, move forward the extrusion head；When the actual value is equal to the preset value, the uncomfortable whole extruding
The position of head.
A kind of ultrasonic vibration pressurizing unit provided by the invention and ultrasonic vibration pressurizing unit control method, according to extruding force
Actual value and preset value comparing result, adjustment extrusion head position is equal to the actual value of extruding force between extrusion head and workpiece
Preset value, extruding force can be accurately controlled, keep the extruding force constant magnitude in pressure process.
Brief description of the drawings
Fig. 1 is a kind of structural representation of ultrasonic vibration pressurizing unit of the embodiment of the present invention；
Fig. 2 is a kind of structural representation of ultrasonic vibration pressurizing unit of the embodiment of the present invention；
Fig. 3 is a kind of pressure sensor scheme of installation of ultrasonic vibration pressurizing unit of the embodiment of the present invention；
Fig. 4 is a kind of flange of ultrasonic vibration pressurizing unit of the embodiment of the present invention and the structural representation of sleeve；
Fig. 5 is a kind of extrusion head scheme of installation of ultrasonic vibration pressurizing unit of the embodiment of the present invention；
Fig. 6 is a kind of flow chart of ultrasonic vibration pressurizing unit control method of the embodiment of the present invention；
Fig. 7 is a kind of workflow diagram of ultrasonic vibration pressurizing unit of the embodiment of the present invention；
Description of reference numerals：
101-extrusion head；102-linear electric motors；103-pressure sensor；
104-control system；105-sleeve；106-flange projection；
107-barrel forward end lid；108-ultrasonic amplitude transformer；109-extrusion head installed part；
110-ultrasonic transducer；111-flange guide pad；112-cage guiding groove；
113-pre-load nut；114-ultrasonic-frequency power supply；115-aviation plug；
116-sleeve mounting seat；1021-linear electric motors driving part；
1022-sliding platform.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Fig. 1 is a kind of structural representation of ultrasonic vibration pressurizing unit of the embodiment of the present invention.A kind of as shown in figure 1, ultrasound
Vibration-extrusion device includes：Extrusion head 101, linear electric motors 102, pressure sensor 103 and control system 104；Pressure sensor
103 for measuring the actual value of extruding force between extrusion head 101 and workpiece, and actual value is sent into control system 104；Control
System 104 electrically connects with pressure sensor 103 and linear electric motors 102 respectively；Control system 104 is used for according to actual value and extruding
The comparing result of the preset value of extruding force between first 101 and workpiece, control linear electric motors 102 drive the adjustment position of extrusion head 101,
So that the actual value of extruding force is equal to preset value between extrusion head 101 and workpiece.
Specifically, a kind of ultrasonic vibration pressurizing unit includes：Extrusion head 101, linear electric motors 102, the and of pressure sensor 103
Control system 104.
When extrusion head 101 contacts with workpiece, extruding force can be produced between extrusion head 101 and workpiece.The reality of the extruding force
Actual value, it can be measured by pressure sensor 103.
Pressure sensor 103 is by measurement, the actual value of extruding force between acquisition extrusion head 101 and workpiece.Pressure sensing
Device 103 electrically connects with control system 104, and the actual value of extruding force is changed between the extrusion head 101 and workpiece that will measure acquisition
Electric signal is sent to control system 104.
Control system 104 electrically connects with pressure sensor 103, the electric signal that pressure sensor 103 is sent is received, according to this
Electric signal obtains the actual value of extruding force between extrusion head 101 and workpiece.Control system 104 also electrically connects with linear electric motors 102,
Control signal is sent to linear electric motors 102.
Linear electric motors 102 electrically connect with control system 104, receive the control signal that control system 104 is sent, and according to control
Signal processed drives the adjustment position of extrusion head 101, so as to adjust the extruding force between extrusion head 101 and workpiece.
Control system 104, receive the actual value of extruding force between extrusion head 101 and workpiece that pressure sensor 103 is sent
Afterwards, the preset value of extruding force between the actual value and extrusion head 101 and workpiece is contrasted, and according to comparing result, Xiang Zhi
Line motor 102 sends corresponding control signal；Linear electric motors 102 work according to the control signal, make extrusion head 101 in straight-line electric
Adjustment position under the drive of machine 102；When extrusion head 101 reaches correct position, the reality of extruding force between extrusion head 101 and workpiece
Actual value is equal to preset value.
Control system 104 can be by the reality of extruding force between extrusion head 101 and workpiece that pressure sensor 103 is sent
Value, and between extrusion head 101 and workpiece extruding force preset value, pass through output equipment and carry out real-time display and/or report.
The embodiment of the present invention accurately measures the actual value of extruding force between extrusion head and workpiece, and root by pressure sensor
According to the actual value of extruding force and the comparing result of preset value, adjustment extrusion head position makes the reality of extruding force between extrusion head and workpiece
Actual value is equal to preset value, can accurately control extruding force, keeps the extruding force constant magnitude in pressure process, solves and shaken in ultrasound
During dynamic extruding metal rod, the particularly Bars with Variable Cross-Section of complexity, it is contemplated that pressure is difficult to control, and extruding force is difficult in extrusion process
Keep constant, so as to cause compressive surface stress size uneven, finished surface effect is undesirable or even finished surface is by broken
Bad the problems such as.Further, extruding force can be set in advance, ensures extruding by the feedback and control of extruding force
Extruding force is constant in journey, can obtain high small surface roughness, antifatigue, corrosion resistance, wearability, case hardness height and performance
The good workpiece surface of homogeneity.Further, real-time display is carried out by output equipment and/or reported between extrusion head and workpiece
The actual value and preset value of extruding force, the actual value of extruding force between extrusion head and workpiece can be better controled over, ensure whole add
Extruding force constant magnitude during work, equal to preset value.Ultrasonic vibration pressurizing unit provided in an embodiment of the present invention has knot
It is excellent that structure is simple and convenient to operate, is stable, Automated condtrol, control accuracy are high, realtime control is good, has a wide range of application etc.
Point, the equipment such as most lathe can be applied to, be advantageous to promote the engineering application of ultrasonic vibration extrusion technique.
Fig. 2 is a kind of structural representation of ultrasonic vibration pressurizing unit of the embodiment of the present invention.Based on above-described embodiment, such as scheme
Shown in 2, a kind of ultrasonic vibration pressurizing unit also includes：Sleeve 105 and flange；Sleeve 105 includes barrel forward end lid 107；Flange
It is provided with a flange projection 106；Flange projection 106 stretches out the side surface of sleeve 105；The first end of pressure sensor 103 with
Barrel forward end lid 107 is connected, and the second end is connected with flange projection 106.
Specifically, a kind of ultrasonic vibration pressurizing unit also includes：Sleeve 105 and flange.
Sleeve 105 includes barrel forward end lid 107.Barrel forward end lid 107 is fixed on the end of sleeve 105 by bolt or screw
On face.It is preferably 6 for the bolt of fixes sleeve drive end bearing bracket 107 or the quantity of screw, but not limited to this.
Flange is provided with a flange projection 106.Flange projection 106 stretches out the side surface of sleeve 105.
Flange projection 106 and barrel forward end lid 107 coordinate, for fixation pressure sensor 103.
Fig. 3 is a kind of pressure sensor scheme of installation of ultrasonic vibration pressurizing unit of the embodiment of the present invention.Such as Fig. 3 institutes
Show, first end and the barrel forward end lid 107 of pressure sensor 103 are connected.For example, the first end and sleeve of pressure sensor 103
Drive end bearing bracket 107 can be connected by bolt, screw or screw rod, but not limited to this.Second end of pressure sensor 103 and flange are convex
Block 106 is connected.For example, the second end of pressure sensor 103 can be connected with flange projection 106 by bolt, screw or screw rod,
But not limited to this.
Preferably, pressure sensor 103 is S type pressure sensors.S type pressure sensors, using S type girder constructions, S type beams
For elastic component, can be used when drawing, pressing.The measurement accuracy of S type pressure sensors is high, measurement range is wide, stability is good, output
Symmetry is good.
The embodiment of the present invention is arranged between flange projection and barrel forward end lid by pressure sensor, being capable of accurate measurement
The actual value of extruding force between extrusion head and workpiece, make the control of extruding force between extrusion head and workpiece more accurate.
Based on above-described embodiment, as shown in Fig. 2 a kind of ultrasonic vibration pressurizing unit also includes：Ultrasonic amplitude transformer 108；It is super
Sound ultrasonic transformer 108 is arranged in sleeve 105；Barrel forward end lid 107 is stretched out in the end of ultrasonic amplitude transformer 108；Ultrasonic amplitude transformer 108
End be threadedly coupled with being provided with the extrusion head installed part 109 of extrusion head 101.
Specifically, a kind of ultrasonic vibration pressurizing unit also includes：Ultrasonic amplitude transformer 108.
Ultrasonic amplitude transformer, also known as ultrasonic gear lever, supersonic concentrator, its profile is usually bar of variable cross-section.Ultrasonic amplitude transformer
Main function include：Displacement enlargement amplitude or vibration velocity, or ultrasonic energy is focused on into i.e. cumulative action on less area.
Preferably, ultrasonic amplitude transformer 108 is half-wavelength ultrasonic transformer.The structure type of ultrasonic amplitude transformer 108 is circular cone-cylinder
Type complex horn.
Ultrasonic amplitude transformer 108 is arranged in sleeve 105.Ultrasonic amplitude transformer 108 can pass through the modes such as welding, screw fixation
It is fixed in sleeve 105, but not limited to this.
Barrel forward end lid 107 is stretched out in the end of ultrasonic amplitude transformer 108, makes to be connected to ultrasound by extrusion head installed part 109
Extrusion head 101 on ultrasonic transformer 108 can contact with workpiece.
Extrusion head 101 is arranged on extrusion head installed part 109.The end of extrusion head installed part 109 and ultrasonic amplitude transformer 108
It is threadedly coupled.The end of ultrasonic amplitude transformer 108 is provided with screw, and extrusion head installed part 109 is screwed into the end of ultrasonic amplitude transformer 108
In the screw at end.The front end of extrusion head installed part 109 is provided with groove, and extrusion head 101 is positioned in the groove.
The embodiment of the present invention makes the dismounting of extrusion head by the threaded connection of ultrasonic amplitude transformer end and extrusion head installed part
It is simpler, easily and fast with changing.
Based on above-described embodiment, as shown in Fig. 2 a kind of ultrasonic vibration pressurizing unit also includes：Ultrasonic transducer 110；
Ultrasonic transducer 110 is arranged in sleeve 105；Ultrasonic transducer 110 is connected with ultrasonic amplitude transformer 108 by flange；It is super
Acoustic-electric source 114 is connected with ultrasonic transducer 110 by aviation plug 115.
Specifically, a kind of ultrasonic vibration pressurizing unit also includes ultrasonic transducer 110.
Ultrasonic transducer, ultrasonic vibration is converted into mechanical oscillation.After ultrasonic vibration is converted to mechanical oscillation, by passing
Pass, amplify, reach workpiece surface, extrusion process is carried out to workpiece.Ultrasonic transducer includes magnetostrictive transducer and piezoelectricity
Ceramic transducer.
Preferably, ultrasonic transducer 110 is half wave length ultrasonic transducer；Ultrasonic transducer 110 changes for piezoelectric ceramics
Can device.
Ultrasonic transducer 110 is arranged in sleeve 105, and can be moved forward and backward in sleeve 105.
Ultrasonic-frequency power supply 114 is connected with ultrasonic transducer 110 by the aviation plug 115 on sleeve 105.
Aviation plug 115 is bolted in the special plane on the surface of sleeve 105.
The electrode slice of ultrasonic transducer 110 is connected with aviation plug 115 by wire.
Ultrasonic-frequency power supply, also known as supersonic generator, Ultrasonic Power Source, it is a kind of to be used to producing ultrasonic vibration and to ultrasound
Wave transducer provides the device of ultrasonic energy.
Ultrasonic transducer 110 is connected with ultrasonic amplitude transformer 108 by flange.
When extrusion head 101 contacts with workpiece, caused extruding force makes ultrasonic transducer between extrusion head 101 and workpiece
110 are moved rearwards, and driving flange projection 106, pull pressure sensor 103, pressure sensor 103 are connected with flange projection 106 backward
One end tense backward, the extruding force for enabling pressure sensor 103 to be gone out according to the tension measurement between extrusion head 101 and workpiece.
The embodiment of the present invention connects ultrasonic transducer and ultrasonic amplitude transformer by flange, and convenient disassembly, intensity are high, sealing
Performance is good, make ultrasonic vibration pressurizing unit for ease of maintenaince, be easy to upgrade.Further, ultrasonic-frequency power supply passes through with ultrasonic transducer
Aviation plug connect, connection and convenient disassembly, make ultrasonic vibration pressurizing unit for ease of maintenaince, be easy to upgrade, apparatus structure is simple,
Improve the flexibility of design.
Fig. 4 is a kind of flange of ultrasonic vibration pressurizing unit of the embodiment of the present invention and the structural representation of sleeve.Based on upper
Embodiment is stated, as shown in figure 4, flange also includes：Multiple flange guide pads 111；Flange projection 106 and multiple flange guide pads
111 are uniformly distributed along the circumference of flange；The inwall of sleeve 105 is provided with multiple one-to-one with multiple flange guide pads 111
Cage guiding groove 112.
Specifically, flange also includes multiple flange guide pads 111.Flange projection 106 and multiple flange guide pads 111 are uniform
It is distributed in the circumference of flange.
The inwall of sleeve 105 is provided with the multiple and one-to-one cage guiding groove 112 of multiple flange guide pads 111.
Flange guide pad 111 and cage guiding groove 112 form gap and coordinated, and make ultrasonic transducer 110 movable
When keep in the horizontal direction.
The embodiment of the present invention by being correspondingly arranged multiple flange guide pads and cage guiding respectively in flange and sleeve inner
Groove, ultrasonic transducer is set to keep when movable in the horizontal direction, enabling pressure sensor accurately to measure extrusion head and work
The actual value of extruding force between part, make the control of extruding force between extrusion head and workpiece more accurate.
Based on above-described embodiment, as shown in Fig. 2 sleeve 105 is arranged on linear electric motors 102；Sleeve 105 is in linear electric motors
Axial stretching motion is carried out under 102 driving.
Specifically, linear electric motors 102 include linear electric motors driving part 1021 and sliding platform 1022.
Sleeve 105 is arranged on linear electric motors 102 by sleeve mounting seat 116.Sleeve 105 passes through sleeve mounting seat 116
It is bolted with the linear electric motors sliding platform 1022 of linear electric motors 102.
Linear electric motors driving part 1021, for receiving the control signal of the transmission of control system 104, according to the control signal
Move sliding platform 1022；By the movement of sliding platform 1022, drive sleeve 105 carries out axial stretching motion, drives and squeezes
The adjustment position of pressure head 101 so that the actual value of extruding force is equal to preset value between extrusion head 101 and workpiece.
The embodiment of the present invention carries out axial stretching motion by linear electric motors drive sleeve, drives extrusion head position adjustment,
The actual value of extruding force between extrusion head and workpiece is adjusted according to actual conditions, keeps extruding in process
Extruding force is constant between head and workpiece.
Fig. 5 is a kind of extrusion head scheme of installation of ultrasonic vibration pressurizing unit of the embodiment of the present invention.Based on above-mentioned implementation
Example, as shown in figure 5, the outside of extrusion head installed part 109 and extrusion head 101 is provided with pre-load nut 113；Pre-load nut 113 is used for
Compress extrusion head installed part 109 and extrusion head 101.
Specifically, extrusion head 101, extrusion head installed part 109 and pre-load nut 113 form extrusion head device.
Pre-load nut 113 is located at the outside of extrusion head 101 and extrusion head installed part 109, can be pressed on extrusion head 101
In the groove of extrusion head installed part 109.
Pre-load nut 113 is unclamped, extrusion head 101 can be changed.According to the situation of workpiece and the use feelings of extrusion head 101
Condition, extrusion head 101 can be changed as needed.The situation of workpiece includes workpiece shapes, material and processing request, but is not limited to
This.
The embodiment of the present invention is compressed extrusion head and extrusion head installed part by pre-load nut, and making in process will not be because
Relative position change between extrusion head and extrusion head installed part causes the measurement of extruding force between extrusion head and workpiece and adjusted not
Accurately, work pieces process caused by avoiding therefore is ineffective, or even the problem of processing failure.Further, by pre-load nut,
Make the dismounting of extrusion head simpler, easily and fast with changing.
Based on above-described embodiment, the shape of extrusion head 101 includes：It is spherical, cylindrical or oval；Extrusion head installed part
109 and the shape of pre-load nut 113 and 101 form fits of extrusion head, to cause pre-load nut 113 to compress extrusion head installed part
109 and extrusion head 101.
Specifically, can be taken different shapes according to the difference of workpiece, extrusion head 101, for example, it is spherical, cylindrical or ellipse
Circle, but not limited to this.
When the use of extrusion head 101 is spherical, cylindrical or oval, extrusion head installed part 109 and pre-load nut 113 use
The shape of the form fit extrusion head 101 of corresponding shape, extrusion head installed part 109 and pre-load nut 113, makes pre-load nut
113 are pressed on extrusion head 101 in the groove of extrusion head installed part 109.
The embodiment of the present invention uses corresponding shape by using extrusion head of different shapes, pre-load nut and extrusion head installed part
Shape, different workpiece is adapted to, make the application of ultrasonic vibration pressurizing unit more extensive, be advantageous to promote ultrasonic vibration to squeeze
The engineering application of pressure technology.
Fig. 6 is a kind of flow chart of ultrasonic vibration pressurizing unit control method of the embodiment of the present invention.It is as shown in fig. 6, a kind of
Ultrasonic vibration pressurizing unit control method includes：The preset value of extruding force between S1, setting extrusion head and workpiece；S2, obtain and squeeze
The actual value of extruding force between pressure head and workpiece, and according to actual value and the comparing result of preset value, adjust the position of extrusion head；
S3, step S2 is repeated, until the actual value of extruding force is equal to preset value between extrusion head and workpiece.
Specifically, a kind of ultrasonic vibration pressurizing unit control method goes for the ultrasonic vibration of above-described embodiment offer
Pressurizing unit, but not limited to this.
In step S1, according to the situation of workpiece, the preset value of extruding force between setting extrusion head and workpiece.The feelings of workpiece
Condition includes workpiece shapes, material and processing request, but not limited to this.
In step S2, the actual value of extruding force between extrusion head and workpiece is obtained by measuring；Obtain extrusion head and workpiece
Between extruding force actual value after, the actual value of extruding force between extrusion head and workpiece is contrasted with preset value；According to reality
The comparing result of actual value and preset value, the corresponding position for adjusting extrusion head, to change the reality of extruding force between extrusion head and workpiece
Actual value.
In step S3, after step S2 is performed, the actual value of extruding force between extrusion head and workpiece is measured again, and according to reality
The comparing result of actual value and preset value, the position of extrusion head is adjusted, until actual value of extruding force etc. between extrusion head and workpiece
In preset value.Step S2 is repeated, until the actual value of extruding force is equal to preset value between extrusion head and workpiece.
The embodiment of the present invention is made by the actual value and the comparing result of preset value according to extruding force, adjustment extrusion head position
The actual value of extruding force is equal to preset value between extrusion head and workpiece, can accurately control extruding force, keeps squeezing in pressure process
Pressure size is constant, solves when ultrasonic vibration extrudes the Bars with Variable Cross-Section of metal rod, particularly complexity, it is contemplated that pressure is difficult
With control, extruding force is difficult to keep constant in extrusion process, so as to cause compressive surface stress size uneven, finished surface effect
The problems such as fruit is undesirable or even finished surface is by destroying.Further, extruding force can be set in advance, passes through extruding
The feedback of power and control ensure the constant of in extrusion process extruding force, and it is small, antifatigue, corrosion-resistant to obtain surface roughness
Property, the workpiece surface that wearability is high, case hardness is high and performance uniformity is good.
Based on above-described embodiment, in step S2 according to actual value and the comparing result of preset value, adjust the position of extrusion head
Put and further comprise：When actual value is more than preset value, extrusion head is moved afterwards；When actual value is less than preset value, move forward extrusion head；
When actual value is equal to preset value, the position of extrusion head is not adjusted.
Specifically, in step S2, between extrusion head and workpiece the actual value of extruding force and the comparing result of preset value have with
Lower three kinds of situations：Actual value is more than preset value, actual value is less than preset value and actual value is equal to preset value.
When the actual value of extruding force between extrusion head and workpiece is equal to preset value, illustrate to extrude between extrusion head and workpiece
The actual value of power meets the requirements, it is not necessary to changes the actual value of extruding force between extrusion head and workpiece, it is not required that adjustment extruding
The position of head.
When the actual value of extruding force between extrusion head and workpiece is more than preset value, illustrate to need to reduce extrusion head and workpiece
Between extruding force actual value.In order to reduce the actual value of extruding force between extrusion head and workpiece, extrusion head is moved afterwards, makes extrusion head
Contact tightness degree between workpiece diminishes, so that the actual value of extruding force reduces between extrusion head and workpiece.
When the actual value of extruding force between extrusion head and workpiece is less than preset value, illustrate to need to increase extrusion head and workpiece
Between extruding force actual value.In order to increase the actual value of extruding force between extrusion head and workpiece, move forward extrusion head, makes extrusion head
Contact tightness degree between workpiece becomes big, so that the actual value of extruding force increases between extrusion head and workpiece.
The embodiment of the present invention is made by the actual value and the comparing result of preset value according to extruding force, adjustment extrusion head position
The actual value of extruding force is equal to preset value between extrusion head and workpiece, controls the extruding force constant magnitude in pressure process, solves
Metal rod is extruded in ultrasonic vibration, during particularly complicated Bars with Variable Cross-Section, it is contemplated that pressure is difficult to control, in extrusion process
Extruding force is difficult to keep constant, and so as to cause compressive surface stress size uneven, finished surface effect is undesirable or even processes
The problems such as surface is by destroying.
Based on above-described embodiment, the present embodiment discloses a kind of computer program product, and the computer program product includes
The computer program being stored on non-transient computer readable storage medium storing program for executing, the computer program include programmed instruction, work as institute
When stating programmed instruction and being computer-executed, computer is able to carry out the method that above-mentioned each method embodiment is provided, such as including：
Ultrasonic vibration pressurizing unit control method；The extrusion head location regulation method of ultrasonic vibration pressurizing unit.
Based on above-described embodiment, the present embodiment provides a kind of non-transient computer readable storage medium storing program for executing, the non-transient meter
Calculation machine readable storage medium storing program for executing stores computer instruction, and the computer instruction makes the computer perform above-mentioned each method embodiment
The method provided, such as including：Ultrasonic vibration pressurizing unit control method；Adjust the extrusion head position of ultrasonic vibration pressurizing unit
Adjusting method.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program
Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
Fig. 7 is a kind of workflow diagram of ultrasonic vibration pressurizing unit of the embodiment of the present invention.As shown in fig. 7, as shown in Figure 2
A kind of ultrasonic vibration pressurizing unit the course of work it is as follows.
During using ultrasonic vibration pressurizing unit, before the start-up operation of ultrasonic vibration pressurizing unit, linear electric motors 102 are fixed
On the knife rest of lathe or knife rest side, extrusion head 101 and axis of workpiece are ensured by the position for adjusting linear electric motors 102
On a horizontal plane.
Opening control 104, the preset value of extruding force between extrusion head and workpiece is set；
Set between extrusion head and workpiece after the preset value of extruding force, starter, open ultrasonic-frequency power supply 114, start straight
Line motor 102, due to now not yet being contacted between workpiece and extrusion head 101, without pressure signal, linear electric motors driving part
1021 driving sliding platforms 1022 move forward, until extrusion head 101 contacts with workpiece；
After extrusion head 101 contacts with workpiece, extruding force is produced between extrusion head 101 and workpiece, pressure sensor 103 produces
Signal；
Pressure sensor 103 obtains the actual value of extruding force between extrusion head 101 and workpiece by measuring, and measurement is obtained
Extrusion head 101 and workpiece between the actual value of extruding force be changed into electric signal and be sent to control system 104；
Control system 104, receive the actual value of extruding force between extrusion head 101 and workpiece that pressure sensor 103 is sent
Afterwards, the preset value of extruding force between the actual value and extrusion head 101 and workpiece is contrasted, and according to comparing result, Xiang Zhi
Line motor 102 sends corresponding control signal；
When the actual value of extruding force between extrusion head 101 and workpiece is more than preset value, linear electric motors 102 are according to control
The control signal that system 104 is sent, is moved after driving sliding platform 1022 by linear electric motors driving part 1021, reduces extrusion head 101
The actual value of extruding force between workpiece；
When the actual value of extruding force between extrusion head 101 and workpiece is less than preset value, linear electric motors 102 are according to control
The control signal that system 104 is sent, drives sliding platform 1022 to move forward by linear electric motors driving part 1021, increases extrusion head 101
The actual value of extruding force between workpiece；
When the actual value of extruding force between extrusion head 101 and workpiece is equal to preset value, linear electric motors driving part 1021
Sliding platform 1022 is not driven to move, sliding platform 1022 is motionless, keeps the actual value of extruding force between extrusion head 101 and workpiece
Equal to preset value；
By the movement of sliding platform 1022, the actual value of extruding force between extrusion head 101 and workpiece is set to be equal to preset value
Afterwards, lathe is started, appropriate workpiece rotary speed and the knife tower feed speed of knife rest is set, makes extrusion head 101 to whole work
Part surface is extruded.
The embodiment of the present invention accurately measures the actual value of extruding force between extrusion head and workpiece, and root by pressure sensor
According to the actual value of extruding force and the comparing result of preset value, adjustment extrusion head position makes the reality of extruding force between extrusion head and workpiece
Actual value is equal to preset value, can accurately control extruding force, keeps the extruding force constant magnitude in pressure process, solves and shaken in ultrasound
During dynamic extruding metal rod, the particularly Bars with Variable Cross-Section of complexity, it is contemplated that pressure is difficult to control, and extruding force is difficult in extrusion process
Keep constant, so as to cause compressive surface stress size uneven, finished surface effect is undesirable or even finished surface is by broken
Bad the problems such as.Further, extruding force can be set in advance, ensures extruding by the feedback and control of extruding force
Extruding force is constant in journey, can obtain high small surface roughness, antifatigue, corrosion resistance, wearability, case hardness height and performance
The good workpiece surface of homogeneity.Further, real-time display is carried out by output equipment and/or reported between extrusion head and workpiece
The actual value and preset value of extruding force, the actual value of extruding force between extrusion head and workpiece can be better controled over, ensure whole add
Extruding force constant magnitude during work, equal to preset value.Ultrasonic vibration pressurizing unit provided in an embodiment of the present invention has knot
It is excellent that structure is simple and convenient to operate, is stable, Automated condtrol, control accuracy are high, realtime control is good, has a wide range of application etc.
Point, the equipment such as most lathe can be applied to, be advantageous to promote the engineering application of ultrasonic vibration extrusion technique.
Finally, the embodiment of the present invention is only preferable embodiment, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (10)
- A kind of 1. ultrasonic vibration pressurizing unit, it is characterised in that including：Extrusion head, linear electric motors, pressure sensor and control system System；The pressure sensor is used for the actual value for measuring extruding force between the extrusion head and workpiece, and the actual value is sent out Give the control system；The control system electrically connects with the pressure sensor and the linear electric motors respectively；The control system, for root According to the comparing result of the preset value of extruding force between the actual value and the extrusion head and workpiece, the linear electric motors band is controlled Move the extrusion head adjustment position so that the actual value of extruding force is equal to the preset value between the extrusion head and workpiece.
- 2. ultrasonic vibration pressurizing unit according to claim 1, it is characterised in that also include：Sleeve and flange；The sleeve includes barrel forward end lid；The flange is provided with a flange projection；The flange projection stretches out the side surface of the sleeve；The first end of the pressure sensor is solidly connected with connected second end of the barrel forward end lid with the flange projection.
- 3. ultrasonic vibration pressurizing unit according to claim 2, it is characterised in that also include：Ultrasonic amplitude transformer；The ultrasonic amplitude transformer is arranged in the sleeve；The barrel forward end lid is stretched out in the end of the ultrasonic amplitude transformer；The end of the ultrasonic amplitude transformer is threadedly coupled with being provided with the extrusion head installed part of the extrusion head.
- 4. ultrasonic vibration pressurizing unit according to claim 3, it is characterised in that also include：Ultrasonic transducer and super Acoustic-electric source；The ultrasonic transducer is arranged in the sleeve；The ultrasonic transducer is connected with the ultrasonic amplitude transformer by the flange；The ultrasonic-frequency power supply is connected with the ultrasonic transducer by aviation plug.
- 5. ultrasonic vibration pressurizing unit according to claim 2, it is characterised in that the flange also includes：Multiple flanges Guide pad；The circumference of the flange projection and the multiple flange guide pad along the flange is uniformly distributed；The inwall of the sleeve is provided with the multiple and one-to-one cage guiding groove of the multiple flange guide pad.
- 6. ultrasonic vibration pressurizing unit according to claim 2, it is characterised in that the sleeve is arranged on the straight-line electric On machine；The sleeve carries out axial stretching motion under the driving of the linear electric motors.
- 7. according to any described ultrasonic vibration pressurizing unit of claim 3 to 6, it is characterised in that the extrusion head installed part Pre-load nut is provided with the outside of the extrusion head；The pre-load nut is used to compress the extrusion head installed part and the extrusion head.
- 8. ultrasonic vibration pressurizing unit according to claim 7, it is characterised in that the shape of the extrusion head includes：Ball Shape, cylinder or ellipse；The shape of the extrusion head installed part and the pre-load nut and the form fit of the extrusion head, to cause the pretension Nut compresses the extrusion head installed part and the extrusion head.
- A kind of 9. ultrasonic vibration pressurizing unit control method, it is characterised in that including：The preset value of extruding force between S1, setting extrusion head and workpiece；S2, the actual value for obtaining extruding force between extrusion head and workpiece, and according to the contrast of the actual value and the preset value As a result, the position of the extrusion head is adjusted；S3, step S2 is repeated, until the actual value of extruding force is equal to the preset value between the extrusion head and workpiece.
- 10. ultrasonic vibration pressurizing unit control method according to claim 9, it is characterised in that in the step S2 According to the actual value and the comparing result of the preset value, the position of the extrusion head is adjusted, is further comprised：When the actual value is more than the preset value, the extrusion head is moved afterwards；When the actual value is less than the preset value, move forward the extrusion head；When the actual value is equal to the preset value, the position of the uncomfortable whole extrusion head.
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| CN110064890A (en) * | 2019-05-24 | 2019-07-30 | 河南理工大学 | A kind of sound fluid-solid coupling two-dimensional ultrasound depth rolling processing unit (plant) |
| CN110307160A (en) * | 2019-04-26 | 2019-10-08 | 珠海格力电器股份有限公司 | Control device and its method, the positive displacement compressor and air conditioner of positive displacement compressor |
| CN110561031A (en) * | 2019-10-21 | 2019-12-13 | 济南大学 | Static pressure controllable ultrasonic surface rolling method and device |
| CN112179531A (en) * | 2020-08-21 | 2021-01-05 | 蚌埠恒远传感器科技有限公司 | S-shaped pull pressure sensor |
| CN113070362A (en) * | 2021-03-29 | 2021-07-06 | 江苏江南创佳型材有限公司 | Continuous extrusion preparation method of corrosion-resistant aluminum alloy plate based on mechanical ultrasonic vibration |
| CN114136794A (en) * | 2021-10-21 | 2022-03-04 | 大冶特殊钢有限公司 | Method for detecting actual rolling reduction of forging steel material of hydraulic press |
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| CN117187508A (en) * | 2023-08-28 | 2023-12-08 | 齐鲁工业大学(山东省科学院) | Ultrasonic rolling surface strengthening device for slender shaft parts |
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