CN106475907B - The Pneumatic grinding wheel of belt surface monitoring chatter - Google Patents
The Pneumatic grinding wheel of belt surface monitoring chatter Download PDFInfo
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- CN106475907B CN106475907B CN201611085757.0A CN201611085757A CN106475907B CN 106475907 B CN106475907 B CN 106475907B CN 201611085757 A CN201611085757 A CN 201611085757A CN 106475907 B CN106475907 B CN 106475907B
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- grinding wheel
- pneumatic grinding
- pneumatic
- signal
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000006061 abrasive grain Substances 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 14
- 229910001651 emery Inorganic materials 0.000 claims description 10
- 239000011888 foil Substances 0.000 claims description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000013528 artificial neural network Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000013507 mapping Methods 0.000 description 4
- 230000001537 neural effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005483 Hooke's law Effects 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 210000002569 neuron Anatomy 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The Pneumatic grinding wheel of belt surface monitoring chatter, flexible grinding tool including being used to be ground workpiece, conductive rubber sensing element array, signal emitting plate and controller for measuring grinding tool deflection and surface flutter, the flexibility grinding tool include Pneumatic grinding wheel, erection support, abrasive grain layer and the rotation axis of insulation；The conductive rubber sensing element array is divided into upper and lower two layers of electrode layer, and two electrode layers are affixed, and each electrode layer is made of several electrodes, and the electrode layer of lower floor is covered in the test section of Pneumatic grinding wheel bottom interior surface；The signal emitting plate includes data transmission module, wireless transmitter and multiple sensors；The controller includes operational amplifier, wireless receiver and display screen.The beneficial effects of the invention are as follows：The acquisition for Pneumatic grinding wheel flexibility grinding deformation amount and surface flutter information is applicable to, and can feedback information be obtained according to the variation of surface curvature, control system is allowed to obtain the deformation of contact zone and local flutter information at the first time.
Description
Technical field
The present invention relates to a kind of Pneumatic grinding wheels of belt surface monitoring chatter.
Background technology
The flexible grinding of Pneumatic grinding wheel refers to carry out grinding by the hollow hemisphere matrix of flexible control.Wherein hollow hemisphere
Body is made of rubber, and surface consolidates one layer by high polymer binder a certain thickness abrasive particle, and the flexibility of emery wheel entirety can be with
Pass through hollow hemisphere air pressure inside On-line Control.Rigidity with respect to conventional rigid emery wheel is ground and the polishing of compliant tool,
The flexible grinding of Pneumatic grinding wheel can carry out pressure control according to the variation of workpiece local curvature, so as to fulfill instrument and curve surface of workpiece
The efficient soft grinding of large area profiling contact, and the material that emery wheel can accurately be controlled to determine position to surface removes
Amount, obtains high-accuracy geometric shape and high quality surface effect.Pneumatic grinding wheel method for grinding adds towards in free form surface precision
There is prominent technical characteristic and advantage in work.
Since the variation of the local curvature of contacted workpiece surface will cause the deformation on Pneumatic grinding wheel surface, so as to cause connecing
Contacting surface is accumulated and the variation of contact force, and this point is an important factor in order to grinding trembling, and either Flutter Mechanism research is gone back
It is that soft grinding process stability contorting is required for obtaining relevant information.So to realize the high rigidity free curve flexibility of high-quality
Grinding is, it is necessary to design a kind of Pneumatic grinding wheel that can detect deflection and surface flutter.
The content of the invention
Macroscopical flutter row of Pneumatic grinding wheel instrument and Abrasive Grain layer can not be perceived in order to solve existing flexible grinding tool
For and vibrating signal, cause processing after surface accuracy and the uncontrollable problem of quality, the present invention proposes one kind can be timely
Ground obtains emery wheel deflection and surface flutter information, the crooked position for determining Pneumatic grinding wheel and the belt surface flutter prison for deforming size
The Pneumatic grinding wheel of survey.
The Pneumatic grinding wheel of belt surface monitoring chatter of the present invention, it is characterised in that：Including being used to be ground the soft of workpiece
Property grinding tool, for measure the rubber layer for being attached with conductive strain piece of grinding tool deflection and surface flutter, signal hair
Penetrate plate and controller, the flexibility grinding tool include by the insulation Pneumatic grinding wheel of air compressor machine supply, erection support, abrasive grain layer and
Rotation axis, the Pneumatic grinding wheel be upper end opening hollow hemisphere type structure, the exterior semi-spherical surface conduct of the Pneumatic grinding wheel
Working surface, the working surface adherency abrasive grain layer of the Pneumatic grinding wheel；The erection support includes upper end mounting portion, middle part seals
Cover and stretch into the lower end support portion of the Pneumatic grinding wheel inner cavity, the upper end mounting portion and the rotation for driving Pneumatic grinding wheel movement
Axis is affixed, and the middle part sealing cover is covered in Pneumatic grinding wheel upper end open-mouth, and the affixed hemispherical for forming closing therewith
Chamber；
The rubber layer is divided into upper and lower two layers, every layer in the form of circumference array array have multiple foil gauges, two rubber layers
Affixed, the rubber layer of lower floor is covered in the test section of Pneumatic grinding wheel bottom interior surface；The foil gauge that two layers of rubber layer pastes thereon
Form electrode.
The signal emitting plate includes data transmission module, wireless transmitter and multiple current sensors, the data
Transport module, the wireless transmitter are mounted on the middle part sealing cover of erection support, and the sensor is distributed in the lower end
In the cavity of support portion, signal input part and the foil gauge lead of the sensor are electrically connected, the signal output part of the sensor
It is electrically connected with the signal input part of the data transmission module, the signal output part of the data transmission module and the wireless transmission
The signal input part of device is electrically connected, and the feeder ear of the data transmission module, the feeder ear of the wireless transmitter pass through confession
Circuit is electrically connected with extraneous power supply；
The controller includes operational amplifier, wireless receiver and display screen, and the signal of the wireless receiver inputs
End is connected with the signal output end signal of the wireless transmitter, the signal output part of the wireless receiver and the computing
The signal input part of amplifier is electrically connected, and signal output part and the display screen of the operational amplifier are electrically connected.
For the electrode of every layer of rubber layer all into circumferential arrangement, area coverage accounts for the 30% of the Pneumatic grinding wheel inner surface gross area.
The upper end mounting portion of the erection support is integrally formed with the middle part sealing cover, and the middle part sealing cover passes through spiral shell
Bolt and the lower end support portion are affixed.
The lower end support portion is hollow hemispherical dome structure, and the centre of sphere of the lower end support portion and the air pressure sand
The centre of sphere of wheel overlaps, and multiple be used for air bag for vent hole, the arc of the lower end support portion is distributed on the lower end support portion
Uniform gap is left between the arc-shaped inner surface of surface and the Pneumatic grinding wheel.
The wireless transmitter and the wireless receiver are bluetooth equipment.
The operation principle of the present invention：Because sticking the rubber for being attached with conductive strain piece in Pneumatic grinding wheel base inner surface,
First, when Pneumatic grinding wheel finished surface curvature changes, Pneumatic grinding wheel partial loop variation causes the variation of stress,
Due to meeting secondary n-th-trem relation n, relation such as following formula between the resistance value R (F) of foil gauge and its suffered external force F：
R (F)=R0+AF+BF2 (1)
Wherein, A, B are two coefficients of (1) formula, and specific calculation is shown in (2), (3) formula；l0For at the beginning of conductive rubber
Beginning length, Hooke's law is met under ideal conditions, and (unit is：M), k1For coefficient of elasticity, (unit is：N/m), k2For ratio system
Number, R0For the undeformed resistance value of conductive rubber, (unit is：Ω),For effective tunnel barrier, (unit is：M), h is general for reduction
Bright gram of constant, m are that (unit is electron mass：kg)；X is for convenience of the parameter of introducing is stated, and there is no physical meanings.
The stress of emery wheel changes the variation for causing conductive rubber layer stress, and conductive rubber is deforming between upper and lower two layers of electrode
The resistance value of local train piece changes therewith；Signal changes, and sensor receives signal, is transferred to signal emitting plate
On, the electric signal of variation is generated on signal emitting plate, the signal is by Bluetooth wireless transmission to controller；Controller passes through indigo plant
Tooth receives information, takes operational amplifier, and the variation of " node-resistance " between sensing unit array electrode is obtained by scanning method
Data, so that it is determined that the crooked position of Pneumatic grinding wheel and deformation size.
Since Pneumatic grinding wheel juxtaposition metamorphose has certain regularity, which is in nonlinear characteristic.Therefore, can pass through
Artificial Neural Network establishes determining for the conduction state of sensing unit array and Pneumatic grinding wheel bending position and surface deformation amount
Magnitude relation mapping model.This project is intended establishing the quantitative relationship mapping model by RBF neural (radial base neural net),
And increase or delete by being based on improved GGAP-RBF algorithms (Generalized growing and pruning RBF)
Neuron, Optimal Neural Network Architectures.
The deformation of the whole each contact resistance variation reflection contact zone of sensing unit array, individual node contact resistance
Mechanical periodicity can then reflect the situation of contact zone part flutter, therefore, conductive rubber sensing unit array can obtain simultaneously
Deformation and local flutter information to contact zone.For improve information real time processing speed, design specialized based on digital signal at
The information-processing circuit of DSP is managed, makes information that can be applied to the soft grinding system of Pneumatic grinding wheel in real time, vibrating signal is completed in cooperation
Be further processed.
The beneficial effects of the present invention are：The height of Flutter Mechanism research and high-quality for the flexible grinding of Pneumatic grinding wheel is hard
Spend the demand of curve flexibility grinding, devise the rubber that is attached with conductive strain piece can detect emery wheel deflection and surface is quivered
The Pneumatic grinding wheel to shake.The covering device is applicable to the acquisition for Pneumatic grinding wheel flexibility grinding deformation amount and surface flutter information,
And can feedback information be obtained according to the variation of surface curvature, the deformation that control system obtains contact zone at the first time is allowed to quiver with local
It shakes information, so as to control emery wheel, reaches better processing effect.The design of the device can be that the invention can be flexible mill
Surface deformation and flutter the detection providing method cut.
Description of the drawings
Fig. 1 is the structure chart of the present invention.
Specific embodiment
It further illustrates the present invention below in conjunction with the accompanying drawings
Referring to the drawings：
The Pneumatic grinding wheel of 1 belt surface monitoring chatter of the present invention of embodiment, the flexible mill including being used to be ground workpiece
Cut instrument 1, the rubber 2 for being attached with conductive strain piece, signal emitting plate 3 for measuring grinding tool deflection and surface flutter
With controller 4, the flexibility grinding tool 1 includes the insulation Pneumatic grinding wheel 11, erection support 12, abrasive grain layer by air compressor machine supply
13 and rotation axis 14, the Pneumatic grinding wheel 11 is the hollow hemisphere type structure of upper end opening, the hemispherical of the Pneumatic grinding wheel 11
Outer surface is as working surface, the working surface adherency abrasive particle of the Pneumatic grinding wheel 11；The erection support 12 is pacified including upper end
Dress portion 121, middle part sealing cover 122 and the lower end support portion 123 for stretching into the Pneumatic grinding wheel inner cavity, the upper end mounting portion
121 with driving the rotation axis that Pneumatic grinding wheel 11 moves affixed, and the middle part sealing cover 122 is covered in 11 upper end of Pneumatic grinding wheel
Open-mouth, and the affixed hemispherical cavity for forming closing therewith；
The rubber layer 2 is divided for upper and lower two layers (21,22), every layer in the form of circumference array array have multiple foil gauges
(23), two rubber layers are affixed, and the rubber layer 22 of lower floor is covered in the test section of 11 bottom interior surface of Pneumatic grinding wheel；Two layers of rubber
Layer and the foil gauge pasted thereon form electrode.
The signal emitting plate 3 includes data transmission module, wireless transmitter and multiple current sensors 31, the number
It is mounted on according to transport module, the wireless transmitter on the middle part sealing cover of erection support, the sensor 31 is distributed in described
In the cavity of Pneumatic grinding wheel 11, the foil gauge 2 of rubber of the signal input part of the sensor 31 with being attached with conductive strain piece
Contact conductor be electrically connected, the signal input part of the signal output part and the data transmission module of the sensor 31 is electrically connected, institute
The signal input part for stating the signal output part and the wireless transmitter of data transmission module is electrically connected, and the data transmission mould
The feeder ear of block, the feeder ear of the wireless transmitter are electrically connected by power supply circuit and extraneous power supply；
The controller 4 includes operational amplifier, wireless receiver and display screen, and the signal of the wireless receiver inputs
End is connected with the signal output end signal of the wireless transmitter, the signal output part of the wireless receiver and the computing
The signal input part of amplifier is electrically connected, and signal output part and the display screen of the operational amplifier are electrically connected.
For the electrode of every layer of rubber layer all into circumferential arrangement, area coverage accounts for the 30% of the Pneumatic grinding wheel inner surface gross area.
The upper end mounting portion 121 of the erection support 12 is integrally formed with the middle part sealing cover 122, the middle part sealing
Lid 122 is affixed by bolt and the lower end support portion 123.
The lower end support portion 123 be hollow hemispherical dome structure, and the centre of sphere of the lower end support portion 123 with it is described
The centre of sphere of Pneumatic grinding wheel 11 overlaps, and multiple through holes are distributed on the lower end support portion 123, and the through hole is used to supply to air bag,
Uniform gap is left between the curved surfaces of the lower end support portion 123 and the arc-shaped inner surface of the Pneumatic grinding wheel 11.
The wireless transmitter and the wireless receiver are bluetooth equipment.
The operation principle of the present invention：It is first because sticking conductive rubber sensing unit array in Pneumatic grinding wheel base inner surface
First, when Pneumatic grinding wheel finished surface curvature changes, Pneumatic grinding wheel partial loop variation causes the variation of stress, by
Meet secondary n-th-trem relation n, relation such as following formula between the resistance value R (F) of foil gauge and its suffered external force F：
R (F)=R0+AF+BF2 (1)
Wherein, A, B are two coefficients of (1) formula, and specific calculation is shown in (2), (3) formula.l0For at the beginning of conductive rubber
Beginning length, Hooke's law is met under ideal conditions, and (unit is：M), k1For coefficient of elasticity, (unit is：N/m), k2For ratio system
Number, R0For the undeformed resistance value of conductive rubber, (unit is：Ω),For effective tunnel barrier, (unit is：M), h is general for reduction
Bright gram of constant, m are that (unit is electron mass：kg)；X is for convenience of the parameter of introducing is stated, and there is no physical meanings.
The stress of emery wheel changes the variation for causing conductive rubber layer stress, and conductive rubber is deforming between upper and lower two layers of electrode
Local " node-resistance " changes therewith；Signal changes, and sensor receives signal, is transferred to signal emitting plate
On, the electric signal of variation is generated on signal emitting plate, the signal is by Bluetooth wireless transmission to controller；Controller passes through indigo plant
Tooth receives information, takes operational amplifier, and the variation of " node-resistance " between sensing unit array electrode is obtained by scanning method
Data, so that it is determined that the crooked position of Pneumatic grinding wheel and deformation size.
Since Pneumatic grinding wheel juxtaposition metamorphose has certain regularity, which is in nonlinear characteristic.Therefore, can pass through
Artificial Neural Network establishes determining for the conduction state of sensing unit array and Pneumatic grinding wheel bending position and surface deformation amount
Magnitude relation mapping model.This project is intended establishing the quantitative relationship mapping model by RBF neural (radial base neural net),
And increase or delete by being based on improved GGAP-RBF algorithms (Generalized growing and pruning RBF)
Neuron, Optimal Neural Network Architectures.
The deformation of the whole each contact resistance variation reflection contact zone of sensing unit array, individual node contact resistance
Mechanical periodicity can then reflect the situation of contact zone part flutter, therefore, conductive rubber sensing unit array can obtain simultaneously
Deformation and local flutter information to contact zone.For improve information real time processing speed, design specialized based on digital signal at
The information-processing circuit of DSP is managed, makes information that can be applied to the soft grinding system of Pneumatic grinding wheel in real time, vibrating signal is completed in cooperation
Be further processed.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (4)
1. the Pneumatic grinding wheel of belt surface monitoring chatter, it is characterised in that：Including being used to be ground the flexible grinding tool of workpiece, be used for
Measure grinding tool deflection and the rubber layer for being attached with conductive strain piece, signal emitting plate and the controller of surface flutter, institute
Stating flexible grinding tool includes the insulation Pneumatic grinding wheel, erection support, abrasive grain layer and the rotation axis that are supplied by air compressor machine, the air pressure
Emery wheel is the hollow hemisphere type structure of upper end opening, and the exterior semi-spherical surface of the Pneumatic grinding wheel is as working surface, the gas
Press the working surface adherency abrasive grain layer of emery wheel；The erection support includes upper end mounting portion, middle part sealing cover and stretches into described
The lower end support portion of Pneumatic grinding wheel inner cavity, the upper end mounting portion is affixed with driving the rotation axis of Pneumatic grinding wheel movement, in described
Portion's sealing cover is covered in Pneumatic grinding wheel upper end open-mouth, and the affixed hemispherical cavity for forming closing therewith；
The rubber layer is divided into upper and lower two layers, and every layer of top array in the form of circumference array has a certain amount of foil gauge, two rubber
Layer is affixed, and the rubber layer of lower floor is covered in the test section of Pneumatic grinding wheel bottom interior surface；The strain that two layers of rubber layer pastes thereon
Piece forms electrode；
The signal emitting plate includes data transmission module, wireless transmitter and multiple current sensors, the data transmission
Module, the wireless transmitter are mounted on the middle part sealing cover of erection support, and the sensor is distributed in the Pneumatic grinding wheel
Cavity in, signal input part and the foil gauge lead of the sensor are electrically connected, the signal output part of the sensor with it is described
The signal input part of data transmission module is electrically connected, the letter of the signal output part of the data transmission module and the wireless transmitter
Number input terminal is electrically connected, and the feeder ear of the data transmission module, the feeder ear of the wireless transmitter pass through power supply circuit
It is electrically connected with extraneous power supply；
The controller include operational amplifier, wireless receiver and display screen, the signal input part of the wireless receiver with
The signal output end signal connection of the wireless transmitter, the signal output part of the wireless receiver and the operation amplifier
The signal input part of device is electrically connected, and signal output part and the display screen of the operational amplifier are electrically connected.
2. the Pneumatic grinding wheel of belt surface monitoring chatter as described in claim 1, it is characterised in that：The electrode of every layer of rubber layer is all
Into circumferential arrangement, area coverage accounts for the 30% of the Pneumatic grinding wheel inner surface gross area.
3. the Pneumatic grinding wheel of belt surface monitoring chatter as described in claim 1, it is characterised in that：The upper end of the erection support
Mounting portion is integrally formed with the middle part sealing cover, and the middle part sealing cover is affixed by bolt and the lower end support portion.
4. the Pneumatic grinding wheel of belt surface monitoring chatter as claimed in claim 3, it is characterised in that：The lower end support portion is sky
The hemispherical dome structure of the heart, and the centre of sphere of the lower end support portion is overlapped with the centre of sphere of the Pneumatic grinding wheel, the lower end support
Multiple through holes are distributed in portion, are left between the curved surfaces of the lower end support portion and the arc-shaped inner surface of the Pneumatic grinding wheel
Even gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085757.0A CN106475907B (en) | 2016-11-30 | 2016-11-30 | The Pneumatic grinding wheel of belt surface monitoring chatter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085757.0A CN106475907B (en) | 2016-11-30 | 2016-11-30 | The Pneumatic grinding wheel of belt surface monitoring chatter |
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| Publication Number | Publication Date |
|---|---|
| CN106475907A CN106475907A (en) | 2017-03-08 |
| CN106475907B true CN106475907B (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611085757.0A Active CN106475907B (en) | 2016-11-30 | 2016-11-30 | The Pneumatic grinding wheel of belt surface monitoring chatter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756239B (en) * | 2017-11-30 | 2024-04-26 | 苏州陈那自动化技术有限公司 | Surface contact polishing device |
| CN112621505A (en) * | 2020-12-17 | 2021-04-09 | 安徽辉乐豪铜业有限责任公司 | Copper door surface treatment equipment and treatment method |
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Application publication date: 20170308 Assignee: QUZHOU KINGSOON PRECISION MACHINERY Co.,Ltd. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2023980039426 Denomination of invention: Pneumatic grinding wheel with surface vibration monitoring Granted publication date: 20180605 License type: Common License Record date: 20230811 Application publication date: 20170308 Assignee: Zhejiang Quzhou Kangzhuang Electromechanical Technology Co.,Ltd. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2023980039423 Denomination of invention: Pneumatic grinding wheel with surface vibration monitoring Granted publication date: 20180605 License type: Common License Record date: 20230811 |
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Application publication date: 20170308 Assignee: QUZHOU DONGGANG MACHINERY MANUFACTURING CO.,LTD. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2023980048486 Denomination of invention: Pneumatic grinding wheel with surface vibration monitoring Granted publication date: 20180605 License type: Common License Record date: 20231127 Application publication date: 20170308 Assignee: Quzhou Hongyu Machinery Technology Co.,Ltd. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2023980048467 Denomination of invention: Pneumatic grinding wheel with surface vibration monitoring Granted publication date: 20180605 License type: Common License Record date: 20231127 Application publication date: 20170308 Assignee: ZHEJIANG HAOMING MACHINERY TECHNOLOGY Co.,Ltd. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2023980048464 Denomination of invention: Pneumatic grinding wheel with surface vibration monitoring Granted publication date: 20180605 License type: Common License Record date: 20231127 |
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