CN110000609A - A kind of ultrasonic vibration cutting and cutting force real-time monitoring integrate tooling system - Google Patents
A kind of ultrasonic vibration cutting and cutting force real-time monitoring integrate tooling system Download PDFInfo
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- CN110000609A CN110000609A CN201910305323.4A CN201910305323A CN110000609A CN 110000609 A CN110000609 A CN 110000609A CN 201910305323 A CN201910305323 A CN 201910305323A CN 110000609 A CN110000609 A CN 110000609A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 56
- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 77
- 230000008447 perception Effects 0.000 claims abstract description 15
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 230000010355 oscillation Effects 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000013481 data capture Methods 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of ultrasonic vibration cutting and cutting force real-time monitoring to integrate tooling system, the system comprises preceding knife handle, rear knife handle, cutter head, PCD blade, vibration piezo ceramic element, force measuring structure component, charge amplifier, data collecting card and PC machine, wherein: the end of preceding knife handle is arranged in the cutter head, and PCD blade is fixed on cutter head；The vibration piezo ceramic element is fixed between rear knife handle and preceding knife handle；The force measuring structure component includes sensitive segment, fixture and perception piezoelectric ceramics group；The sensitive segment is bolted with fixture；The perception piezoelectric ceramics group is pasted on sensitive segment；The perception piezoelectric ceramics group extraction wire connects charge amplifier, and charge amplifier is connect with data collecting card, and data collecting card is connected with PC machine.The present invention makes point of a knife generate the elliptical orbit of small amplitude by Piezoelectric Ceramic vibration, improves cutter life and processing quality.
Description
Technical field
The present invention relates to a kind of two dimensional ultrasonic vibration cutting tool systems.
Background technique
With the continuous development of society, mechanical industry is rapidly developed.The product quality of machining it is good
It is bad to be heavily dependent on process tool.There are many existing process tool, and wherein lathe tool is most common process tool.Buddha's warrior attendant
Stone Tool in Cutting ferrous metal is easy to cause graphitization damage cutter, while generating a large amount of cutting heat, accelerates tool wear, shadow
Ring tool sharpening precision.
Two-dimensional elliptic ultrasonic vibration cutting is a kind of very effective processing method, and certain vibration is introduced in position of tool tip
Width generates oval Cutting trajectory, can convert continuous cutting process to interrupted cut process, chip is avoided to glue knife, reduction is cut
Cutter life is improved while cutting power.Existing two dimensional ultrasonic vibration cutter is divided into resonant mode and two kinds of disresonance type, disresonance
The processing is simple for the Tool Design of formula, but universal vibration frequency is relatively low, in the case where ultraprecise high-speed cutting, is not easily achieved
Tool work piece separation, influences cutter life；Existing resonant vibration type supersonic vibration cutter is directed to high amplitude cutting mostly, needs to introduce
Luffing rod structure, structure size is big, influences cutter clamping, is unfavorable for Ultra-precision Turning process.
Summary of the invention
The object of the present invention is to provide a kind of ultrasonic vibration cutting and cutting force real-time monitoring to integrate tooling system, passes through pressure
Electroceramics driving vibration makes point of a knife generate the elliptical orbit of small amplitude, improves cutter life and processing quality.Furthermore it designs
High frequency power sensor-based system out avoids the influence vibrated to dynamometry, realizes the combination of ultrasonic vibration and slice the dint to monitor.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of ultrasonic vibration cutting and cutting force real-time monitoring integrate tooling system, including preceding knife handle, rear knife handle, cutter head, PCD knife
Piece, vibration piezo ceramic element, force measuring structure component, charge amplifier, data collecting card and PC machine, in which:
The end of preceding knife handle is arranged in the cutter head, and PCD blade is fixed on cutter head；
The vibration piezo ceramic element includes extensional vibration piezoelectric ceramics group and oscillation crosswise piezoelectric ceramics group；
The longitudinal direction piezoelectric vibration ceramics group and oscillation crosswise piezoelectric ceramics group are fixed between rear knife handle and preceding knife handle, and longitudinal
It is rotated by 90 ° between piezoelectric vibration ceramics group and oscillation crosswise piezoelectric ceramics group；
The longitudinal direction piezoelectric vibration ceramics group and oscillation crosswise piezoelectric ceramics group are made of two pairs of vibration piezoelectric ceramic pieces, each pair of
Electrode slice is sandwiched in vibration piezoelectric ceramic piece, the electrode slice connection ultrasonic electric sandwiched in same each pair of piezoelectric ceramic piece of direction of vibration
The anode in source, the cathode of the electrode slice connection ultrasonic-frequency power supply sandwiched in different each pair of piezoelectric ceramic pieces of direction of vibration；
It is respectively equipped with fastener hole on the preceding knife handle and rear knife handle, passes through holding screw head clamping fastener hole and force measuring structure group
Part is connected；
The force measuring structure component includes sensitive segment, fixture and perception piezoelectric ceramics group；
The sensitive segment is bolted with fixture；
The perception piezoelectric ceramics group is pasted on sensitive segment；
The perception piezoelectric ceramics group extraction wire connects charge amplifier, and charge amplifier is connect with data collecting card, data
Capture card is connected with PC machine.
Compared with the prior art, the present invention has the advantage that
1, it the present invention is based on ultrasonic transducer theory, is abandoned using direct sandwich cutter using piezoelectric ceramics as driving device
Luffing rod structure improves resonance frequency using three bent-segment vibration modes, obtains higher vibration frequency, furthermore makes cutter
More compact structure reduces processing cost.
2, the breakage of cutting tool can reflect in the variation of cutting force, and the real-time monitoring for introducing cutting force can guarantee
The abrasion condition for finding cutter at the first time, reduces rejection rate, while also reducing cost.
3, product at this stage is difficult to combine ultrasonic vibration cutting with slice the dint to monitor, tooling system of the invention
Successfully both ultrasonic vibration cutting and slice the dint to monitor are combined, improve cutting performance and function.
4, the two dimensional ultrasonic vibration cutting tool system structure that the present invention designs is simple, and Piezoelectric Ceramic is sandwiched between knife bar
Element realizes the elliptical vibration track of point of a knife, ensure that cutter and workpiece makes discontinuous contact, extends while improving processing quality
Cutter life, while introducing cutting force real time monitoring function, it is ensured that cutter works in normal condition.
Detailed description of the invention
Fig. 1 is the connection schematic diagram that ultrasonic vibration cutting of the present invention and cutting force real-time monitoring integrate tooling system；
Fig. 2 is the mounting structure schematic diagram of vibration cutter；
Fig. 3 is the overall structure diagram of tooling system.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawing, and however, it is not limited to this, all to this
Inventive technique scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered
Within the protection scope of the present invention.
The present invention provides a kind of ultrasonic vibration cutting and cutting force real-time monitoring to integrate tooling system, as shown in Figure 1-3,
The system comprises preceding knife handle 2, rear knife handle 1, cutter head 5, PCD blade 6, vibration piezo ceramic elements, force measuring structure component, charge
Amplifier 12, data collecting card 13 and PC machine 14, in which:
The end of preceding knife handle 2 is arranged in the cutter head 5, and PCD blade 6 is directly anchored on cutter head 5 by welding manner；
4 fastener holes 7 for fixed cutting tool are respectively equipped on the preceding knife handle 2 and rear knife handle 1, pass through 8 clamp screw ailheads
Portion's clamping fastener hole 7 is connected with force measuring structure component；
The vibration piezo ceramic element includes extensional vibration piezoelectric ceramics group 3 and oscillation crosswise piezoelectric ceramics group 4；
The longitudinal direction piezoelectric vibration ceramics group 3 and oscillation crosswise piezoelectric ceramics group 4 are fixed by screws in rear knife handle 1 and preceding knife handle
Between 2, and it is rotated by 90 ° between longitudinal piezoelectric vibration ceramics group 3 and oscillation crosswise piezoelectric ceramics group 4；
The longitudinal direction piezoelectric vibration ceramics group 3 and oscillation crosswise piezoelectric ceramics group 4 are made of two groups of vibration piezoelectric ceramic pieces, often
Group vibration piezoelectric ceramic piece is made of two semicircle ring plates, and every two semicircle ring plate constitutes a full circle ring, every group of vibration piezoelectricity
Electrode slice is sandwiched in potsherd, the anode of the electrode slice connection ultrasonic-frequency power supply 8 sandwiched in every group of vibration piezoelectric ceramic piece, two groups of vibrations
The cathode of ultrasonic-frequency power supply 8 is connected between dynamic piezoelectric ceramic piece；
The force measuring structure component includes sensitive segment 9, fixture 10 and perception piezoelectric ceramics group 11；
The sensitive segment 9 is bolted with fixture 10 by 8；
The perception piezoelectric ceramics group 11 is four square plates, and the surrounding of sensitive segment 9 is pasted by epoxide-resin glue；
The vibration cutter component is located inside sensitive segment 9；
The vibration cutter component includes preceding knife handle 2, rear knife handle 1, cutter head 5, PCD blade 6, vibration piezoelectric ceramics group and electrode
Piece；
11 extraction wire of perception piezoelectric ceramics group connects charge amplifier 12, and charge amplifier 12 and data collecting card 13 connect
It connects, data collecting card 13 is connected with PC machine 14.
In the present invention, it is attached between knife handle 1 and preceding knife handle 2 using 40Cr screw after described, tooling system is integrally solid
Surely by knife handle 1 after fastening screw clamping and the fastener hole 7 on preceding knife handle 2.
In the present invention, slot position has been stayed at 5 position of cutter head, convenient for the welding assembly of PCD blade 6.
In the present invention, the vibration piezo ceramic element is fixed by screws among preceding knife handle 2 and rear knife handle 1, in this way
Piezoelectric ceramics can be made to be in compressive state always, extend the piezoelectric ceramics service life.
In the present invention, it is rotated by 90 ° between the longitudinal direction piezoelectric vibration ceramics group 3 and oscillation crosswise piezoelectric ceramics group 4, in this way
It can guarantee to generate bending vibration in 2 orthogonal directions, the point of a knife that combines does elliptical vibration, guarantees point of a knife track.
In the present invention, electrode slice a part that each pair of piezoelectric ceramic piece sandwiches alternately connects supersonic signal generator
Positive and negative anodes, wherein the electrode slice access cathode contacted with knife handle after preceding knife handle, guarantees to generate alternating electric field between piezoelectric ceramic piece,
And guarantees that cutter body is not charged, improve safety.
In the present invention, the fastener hole 7 on the front and back knife handle must be opened in vibration nodal point position, it is ensured that the fixation of cutter is not
It will affect the vibration cutting vibration shape.
In the present invention, the sensitive segment 11 sacrifices certain rigidity, obtains the higher sensitivity of load cell.
Two dimensional ultrasonic vibration cutting of the invention is as follows with cutting force real-time monitoring lathe tool system vibration structure working principle:
The signal end of ultrasonic-frequency power supply 8 and extensional vibration piezoelectric ceramics group 3, oscillation crosswise piezoelectric ceramics group 4 are distinguished using conducting wire
Connection, powers on, and adjustment signal frequency generator is three rank resonance frequency of cutter, and two output ends of ultrasonic-frequency power supply 8 are distinguished
The signal that identical frequency phase difference is 90 ° is exported, extensional vibration piezoelectric ceramics group 3 and oscillation crosswise piezoelectric ceramics group 4 are made respectively
, there is phase difference in unidirectional bending vibration, the point of a knife that combines does elliptical vibration, and can be cut according to different between the two
Situation is cut, the voltage value of adjustment signal generator adjusts the vibration displacement amplitude of point of a knife.2 He of knife handle before 8 fastening screw clampings
Fastener hole 7 on knife handle 1 afterwards, since fastener hole 7 is located at vibration cutting node location, the fastening of cutter will not influence vibration
The vibration shape, and will not influence dynamometry signal.
Two dimensional ultrasonic vibration cutting of the invention is as follows with cutting force real-time monitoring lathe tool system force measuring structure working principle:
It is provided with 8 threaded holes on sensitive segment 9, is fixedly connected by holding screw with rear knife handle 1 and preceding knife handle 2, when cutting workpiece
Power is transmitted on sensitive segment 9 by rear knife handle 1 and preceding knife handle 2, causes 9 miniature deformation of sensitive segment, and then cause to be bonded in perception
Perception piezoelectric ceramics group 11 in section 9 generates strain, and according to piezoelectric effect principle, it is different to perceive the generation of 11 surface of piezoelectric ceramics group
The charge of size, charge passes to charge amplifier 12 by conducting wire and carries out signal condition, then is transferred in data collecting card 13, finally
It imports in PC machine 14, the measurement of three axis force is realized using specific decoupling method.
Another effect of cutting force real-time monitoring system of the invention is indirect detection lathe tool sharpening effect.Lathe tool is in sword
After mill in the case where use, after system reaches stable state, if there is the mutation of dynamometry signal, this indicates that the sharpening effect of lathe tool
It is bad, it needs tool changing or sharpens again.
Claims (8)
1. a kind of ultrasonic vibration cutting and cutting force real-time monitoring integrate tooling system, it is characterised in that the system comprises preceding knives
Handle, rear knife handle, cutter head, PCD blade, vibration piezo ceramic element, force measuring structure component, charge amplifier, data collecting card and
PC machine, in which:
The end of preceding knife handle is arranged in the cutter head, and PCD blade is fixed on cutter head；
The vibration piezo ceramic element includes extensional vibration piezoelectric ceramics group and oscillation crosswise piezoelectric ceramics group；
The longitudinal direction piezoelectric vibration ceramics group and oscillation crosswise piezoelectric ceramics group are fixed between rear knife handle and preceding knife handle；
The longitudinal direction piezoelectric vibration ceramics group and oscillation crosswise piezoelectric ceramics group are made of two pairs of vibration piezoelectric ceramic pieces, each pair of
Electrode slice is sandwiched in vibration piezoelectric ceramic piece, the electrode slice connection ultrasonic electric sandwiched in same each pair of piezoelectric ceramic piece of direction of vibration
The anode in source, the cathode of the electrode slice connection ultrasonic-frequency power supply sandwiched in different each pair of piezoelectric ceramic pieces of direction of vibration；
It is respectively equipped with fastener hole on the preceding knife handle and rear knife handle, passes through holding screw head clamping fastener hole and force measuring structure group
Part is connected；
The force measuring structure component includes sensitive segment, fixture and perception piezoelectric ceramics group；
The sensitive segment is bolted with fixture；
The perception piezoelectric ceramics group is pasted on sensitive segment；
The perception piezoelectric ceramics group extraction wire connects charge amplifier, and charge amplifier is connect with data collecting card, data
Capture card is connected with PC machine.
2. ultrasonic vibration cutting according to claim 1 and cutting force real-time monitoring integrate tooling system, it is characterised in that
The PCD blade is directly anchored on cutter head by welding manner.
3. ultrasonic vibration cutting according to claim 1 and cutting force real-time monitoring integrate tooling system, it is characterised in that
Every group of vibration piezoelectric ceramic piece is made of two semicircle ring plates, and every two semicircle ring plate constitutes a full circle ring.
4. ultrasonic vibration cutting according to claim 1 and cutting force real-time monitoring integrate tooling system, it is characterised in that
It is attached between knife handle and preceding knife handle using screw after described.
5. ultrasonic vibration cutting according to claim 1 and cutting force real-time monitoring integrate tooling system, it is characterised in that
It is rotated by 90 ° between the longitudinal direction piezoelectric vibration ceramics group and oscillation crosswise piezoelectric ceramics group.
6. ultrasonic vibration cutting according to claim 1 and cutting force real-time monitoring integrate tooling system, it is characterised in that
The fastener hole is opened in vibration nodal point position.
7. ultrasonic vibration cutting and cutting force real-time monitoring integrate tooling system according to claim 1 or 5, feature exists
It is fixed by screws among preceding knife handle and rear knife handle in longitudinal piezoelectric vibration ceramics group and oscillation crosswise piezoelectric ceramics group.
8. ultrasonic vibration cutting according to claim 1 and cutting force real-time monitoring integrate tooling system, it is characterised in that
The perception piezoelectric ceramics group is four square plates, and the surrounding of sensitive segment is pasted by epoxide-resin glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910305323.4A CN110000609B (en) | 2019-04-16 | 2019-04-16 | Ultrasonic vibration cutting and cutting force real-time monitoring integrated cutter system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910305323.4A CN110000609B (en) | 2019-04-16 | 2019-04-16 | Ultrasonic vibration cutting and cutting force real-time monitoring integrated cutter system |
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| Publication Number | Publication Date |
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| CN110000609A true CN110000609A (en) | 2019-07-12 |
| CN110000609B CN110000609B (en) | 2022-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378641A (en) * | 2022-03-25 | 2022-04-22 | 西南交通大学 | Four-component cutting force online monitoring intelligent knife handle |
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2019
- 2019-04-16 CN CN201910305323.4A patent/CN110000609B/en not_active Expired - Fee Related
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