CN109648478A - A kind of method and device thereof for monitoring wheel passivatio state on-line - Google Patents
A kind of method and device thereof for monitoring wheel passivatio state on-line Download PDFInfo
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- CN109648478A CN109648478A CN201910089047.2A CN201910089047A CN109648478A CN 109648478 A CN109648478 A CN 109648478A CN 201910089047 A CN201910089047 A CN 201910089047A CN 109648478 A CN109648478 A CN 109648478A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005070 sampling Methods 0.000 claims abstract description 64
- 239000006061 abrasive grain Substances 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000035939 shock Effects 0.000 claims description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 239000000284 extract Substances 0.000 claims description 8
- 238000012935 Averaging Methods 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 230000005619 thermoelectricity Effects 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000737 periodic effect Effects 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004575 stone 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The present invention provides a kind of methods for monitoring wheel passivatio state on-line, the grinding temperature signal generated by periodic monitoring wheel grinding sampling block, identify blunt state locating for wheel grinding state and grinding wheel, dressing or replacement can be carried out to grinding wheel in time, extend the service life of grinding wheel, the grinding quality for further ensuring workpiece, improves production efficiency.The present invention also provides a kind of devices for monitoring wheel passivatio state on-line can effectively monitor wheel passivatio state, can prompt to carry out grinding wheel dressing or replacement in time, and easy to operate convenient for monitoring, improve monitoring efficiency.
Description
Technical field
The present invention relates to the fields of grinding on-line monitoring, more particularly to a kind of on-line monitoring wheel passivatio state
Method and device.
Background technique
Grinding is one of the important technology for improving workpiece surface quality, and many precision components need to carry out using grinding wheel
Grinding and Ultra-precision Turning, and abrasion of grinding wheel degree of passivation has important influence to workpiece surface quality.Add in grinding
During work, with the increase of grinding time, wheel face state of the abrasive grain can constantly change, for example abrasive grain mill occur
Damage, grain breakage and phenomena such as wheel topography, cause wheel grinding performance to decline, thus make workpiece to be machined dimensional accuracy and
Surface quality is severely impacted.If replacing and modifying grinding wheel not in time, it will product rejection rate is caused to improve.Therefore in real time
Understand wheel face state in which and dressing grinding wheel is very important in time.With the accumulation of grinding time, wheel face
Abrasive grain can lose grinding capacity because of lasting abrasion, blunt, and grinding temperature is caused constantly to rise；And Grain Falling Off or
Wheel topography will cause Effective grains' number reduction, so that the number of abrasive grain thermal shock signal be made to reduce.Therefore effective using grinding wheel
Two factors of abrasive particle number and wheel grinding temperature may determine that the state of wheel passivatio, realize wheel passivatio state on_line monitoring,
To reach the quality of control grinding workpiece.
In view of this, the present inventor furthers investigate grinding wheel on-line checking, there is this case generation then.
Summary of the invention
The method for the on-line monitoring wheel passivatio state based on grinding temperature that the purpose of the present invention is to provide a kind of, thus
Can in time dressing grinding wheel or replacement grinding wheel, achieve the purpose that control grinding workpiece quality.
A method of on-line monitoring wheel passivatio state, comprising the following steps:
Step 1, the grinding temperature signal that acquisition wheel grinding sampling block generates, and obtain temperature signal collection；
Step 2, it is concentrated from the temperature signal and extracts wheel grinding contact zone temperature and abrasive grain thermal shock signal, known with this
Blunt state locating for other wheel grinding state and grinding wheel.
Further, the grinding temperature signal is acquired by the sampling block and thermocouple sensor in step 1, it is single
The collected grinding temperature signal is combined into the temperature signal collection in the time of position；By grinding the grinding wheel in step 2
It cuts contact zone temperature and abrasive grain thermal shock signal is compared with corresponding preset threshold, identify wheel grinding state and grinding wheel
Locating blunt state.
Further, the temperature signal collection includes low frequency signal and high-frequency signal, step 2, from the temperature signal collection
The middle wheel grinding contact zone temperature and the particular content of the abrasive grain thermal shock signal extracted includes: to extract a temperature
The whole low frequency signal that signal is concentrated is spent, and is averaged to the low frequency signal, identifies the sand by averaging
Wheel grinding contact zone temperature；One active grain of grinding wheel generates a height when carrying out a thermal shock to the sampling block
Frequency signal；The whole high-frequency signal of a temperature signal concentration is directly extracted as the abrasive grain thermal shock signal.
Further, step 1 medium plain emery wheel be ground the sampling block grinding depth value range be 0.005mm extremely
0.05mm；The sampling block is made according to the type of monitored grinding wheel of different materials.
Further, thermocouple thin slice used by the thermocouple sensor according to grinding wheel model and grinding parameter not
The corresponding thickness with selection, and the Thickness range of thermocouple thin slice used by the thermocouple sensor is 0.004mm
To 0.1mm.
The device for the on-line monitoring wheel passivatio state based on grinding temperature that the present invention also provides a kind of, can not only be effective
Monitoring wheel passivatio state, and it is easy to operate convenient for monitoring.
A kind of device for monitoring wheel passivatio state on-line, including support frame base, the support frame seat of honour, grinding depth adjustment
Mechanism, sampling block and thermocouple sensor, the grinding depth adjustment mechanism connection support frame as described above pedestal and support frame as described above
The seat of honour, and the grinding depth adjustment mechanism can adjust the support frame as described above seat of honour at a distance from support frame as described above pedestal, it is described
Sampling block is fixedly arranged on the support frame as described above seat of honour, and the thermocouple sensor is fixedly arranged on the sampling block.
Further, the thermocouple sensor has thermocouple thin slice, and the sampling block includes two pieces of sampling plates, described
Thermocouple thin slice is set between two pieces of sampling plates, and two pieces of sampling plates seize the thermocouple thin slice, and the sampling on both sides by the arms
The face to be ground of block and the top of the thermocouple thin slice are in the same plane.
Further, the support frame as described above seat of honour is located at the top of support frame as described above pedestal, the grinding depth adjustment mechanism
Including the upper prop and foundation for being mutually perpendicular to and intersecting, the face of joining of the upper prop and the foundation is inclined surface；The upper prop
One end far from the foundation is movably connected on the support frame as described above seat of honour, and the foundation is movably connected on support frame as described above pedestal
On.
Further, the bottom surface at the support frame as described above seat of honour is concaved with telescopic chute, and the upper prop is far from the foundation
One end is protruded into the telescopic chute, and the support frame as described above seat of honour is equipped with the locking knot being fixed on the upper prop in the telescopic chute
Structure；Support frame as described above pedestal is provided with guide post cylinder immediately below the upper prop, and the upper prop can close to one end of the foundation
It is up and down in the guide post cylinder, and the lateral wall of the upper prop is bonded the inner sidewall of the guide post cylinder.
Further, the output end of the thermocouple sensor is connected with signal picker, the signal picker it is defeated
Outlet connects PC machine.
By adopting the above technical scheme, the method for a kind of on-line monitoring wheel passivatio state of the invention, passes through periodic monitoring
The grinding temperature signal that wheel grinding sampling block generates identifies blunt state locating for wheel grinding state and grinding wheel, can be timely
Ground carries out dressing or replacement to grinding wheel, extends the service life of grinding wheel, further ensures the grinding quality of workpiece, improve
Production efficiency.
By adopting the above technical scheme, a kind of device for monitoring wheel passivatio state on-line of the present invention can not only be supervised effectively
Wheel passivatio state is surveyed, can prompt to carry out grinding wheel dressing or replacement in time, and is easy to operate convenient for monitoring, improves monitoring effect
Rate.
Detailed description of the invention
Fig. 1 is signal picker hardware system used in a kind of method for monitoring wheel passivatio state on-line of the present invention；
Fig. 2 is using a kind of workflow for the method for monitoring wheel passivatio state on-line of the present invention；
Fig. 3 is a kind of schematic diagram for the device for monitoring wheel passivatio state on-line of the present invention；
Fig. 4 is schematic diagram when a kind of device for monitoring wheel passivatio state on-line of the present invention is applied.
Label declaration:
1 guide post cylinder 11 of support frame base
Guide pillar hole 111
The 12 support frame seat of honour 2 of guide rod
First rotary screw, 21 second rotary screw 22
Wire guide 23
3 upper prop 31 of grinding depth adjustment mechanism
Foundation 32
4 thermocouple sensor 5 of sampling block
6 PC machine 7 of signal picker
Grinding wheel 8
Specific embodiment
In order to further explain the technical solution of the present invention, being carried out in the following with reference to the drawings and specific embodiments to the present invention detailed
It is thin to illustrate.
A method of on-line monitoring wheel passivatio state
The following steps are included:
Step 1, the grinding temperature signal that acquisition wheel grinding sampling block generates, and obtain temperature signal collection；
Step 2, it is concentrated from the temperature signal and extracts wheel grinding contact zone temperature and abrasive grain thermal shock signal, known with this
Blunt state locating for other wheel grinding state and grinding wheel.
By the sampling block and thermocouple sensor in step 1, the grinding temperature signal, the grinding temperature are acquired
Signal is delivered in PC machine after being converted into digital signal by signal picker.The collected grinding temperature in unit time
Signal is combined into the temperature signal collection.
The temperature signal collection can be rendered as one section of electric wave in the unit time, and the temperature signal collection includes low frequency signal
And high-frequency signal.
Step 2, it is concentrated from the temperature signal and extracts wheel grinding contact zone temperature and abrasive grain thermal shock letter
Number particular content include:
The whole low frequency signal that a temperature signal is concentrated is extracted, and is averaged to the low frequency signal, is led to
The mean value for crossing the required low frequency signal identifies wheel grinding contact zone temperature.
One active grain of grinding wheel carries out a thermal shock to the sampling block and generates a high-frequency signal；Directly
The high-frequency signal of the temperature signal concentration is extracted as the abrasive grain thermal shock signal.
PC machine is used in step 2, by by wheel grinding contact zone temperature and abrasive grain thermal shock signal with it is corresponding
Preset threshold is compared, and identifies blunt state locating for wheel grinding state and grinding wheel.
The grinding depth value range that step 1 medium plain emery wheel is ground the sampling block is 0.005mm to 0.05mm.The sampling
Root tuber is made according to the type of monitored grinding wheel of different materials.So that a kind of on-line monitoring wheel passivatio shape of the present invention
The method of state is applicable in more monitoring requirements, expands application range.
Such as: the grinding wheel monitored when being made of CBN grinding wheel the sampling block preferably use cast iron or stainless steel；It is supervised
The sampling block preferably uses hard alloy or ceramics to be made when the grinding wheel of survey is by skive.
Grinding temperature is being measured using thermocouple thin slice, responsive time constant can deduce are as follows:
In formula: δ is the thickness of thermocouple thin slice；α is the thermal diffusion coefficient of thermocouple thin slice, τsFor responsive time constant.
Thermoelectricity dual thickness required for being determined according to above formula.
Thermocouple thin slice used by the thermocouple sensor is according to the different selections pair of grinding wheel model and grinding parameter
The thickness answered, and the Thickness range of thermocouple thin slice used by the thermocouple sensor is 0.004mm to 0.1mm.
The thermocouple sensor includes thermocouple thin slice described in two panels, uses PE film-insulated between thermocouple thin slice described in two panels；Institute
It states film-insulated using PE between thermocouple thin slice and the sampling block.The accuracy that monitoring interference improves monitoring is reduced with this.
Signal picker hardware system of the present invention, as shown in Figure 1, the voltage signal expression of thermocouple sensor output is
Temperature of the pyrometer fire-end relative to cold end carries out cold junction compensation to voltage by cold-junction compensation circuit and obtains corresponding reality
The voltage value of the grinding temperature signal on border；Then microprocessor is transferred to after signal amplification circuit is converted, microprocessor is excellent
Choosing uses the microprocessor of model STM32F767IGT.Microprocessor is converted into grinding temperature signal to pass through after digital quantity
Grinding temperature signal is transferred to PC machine by Ethernet interface, and the data analyzed finally are uploaded to cloud storage, facilitate monitoring and
It consults.
A kind of workflow for the method for monitoring wheel passivatio state on-line of the present invention, as shown in Fig. 2, when wheel grinding arrives
Sampling block, thermocouple sensor generate voltage signal (carrying grinding temperature signal), and voltage signal is passed by thermocouple connecting line
It is converted into digital signal (carrying grinding temperature signal) out and by signal picker, signal picker again (carries digital signal
Grinding temperature signal) it is transmitted to PC machine；
Then PC machine collects grinding temperature signal online and is combined into temperature signal collection, then PC machine on-line analysis temperature signal
Collection.The high-frequency signal quantity (i.e. abrasive grain thermal pulse quantity) in signal is extracted to identify grinding wheel Effective grains' number；It extracts in signal
Low frequency signal, and average to low frequency signal, identify wheel grinding contact zone temperature by averaging.
Monitoring data can also constantly be uploaded to cloud storage by being connected to the network, establish the big number of stone state
According to this big data can be supplied to intelligence manufacture, analysis and decision system and use.
A kind of method for monitoring wheel passivatio state on-line of the present invention, is generated by periodic monitoring wheel grinding sampling block
Grinding temperature signal identifies blunt state locating for wheel grinding state and grinding wheel, can carry out dressing or more to grinding wheel in time
It changes, extends the service life of grinding wheel, further ensure the grinding quality of workpiece, improve production efficiency.
A kind of the present inventor's application for the method for monitoring wheel passivatio state on-line according to the present invention, additionally provides following skill
Art scheme.
The present inventor also invented a kind of device for monitoring wheel passivatio state on-line in application above scheme.
A kind of device for monitoring wheel passivatio state on-line, as shown in Figures 1 to 4, including on support frame base 1, support frame
Seat 2, grinding depth adjustment mechanism 3, sampling block 4 and thermocouple sensor 5, grinding depth adjustment mechanism 3 connect support frame base 1
With the support frame seat of honour 2, and grinding depth adjustment mechanism 3 can adjust the support frame seat of honour 2 at a distance from support frame base 1；Sampling
Block 4 is fixedly arranged on the support frame seat of honour 2, and thermocouple sensor 5 is fixedly arranged on sampling block 4, further grinding depth adjustment mechanism 3
Sampling block 4 can be adjusted at a distance from support frame base 1.
Sampling block 4 is fixedly arranged on the support frame seat of honour 2, and the top end surface at the support frame seat of honour 2 is concaved with sampling slot, sampling
Block 4 is placed in sampling slot, and the support frame seat of honour 2 is provided with the first rotary screw 21, and the support frame seat of honour 2 passes through the first rotary screw
21 are installed in sampling block 4 in sampling slot, and the middle part at the support frame seat of honour 2 offers wire guide 23, and thermocouple connecting line is by leading
String holes 23 connects thermocouple sensor 5.
First rotary screw 21 is screwed on the lateral wall at the support frame seat of honour 2, and the bottom of the first rotary screw 21 can
Sampling slot is threaded in or out from the lateral wall at the support frame seat of honour 2；First when the bottom of first rotary screw 21 screws in sampling slot
The bottom end face of rotary screw 21 can squeeze the side of sampling block 4, so that sampling block 4 protrudes into the part of sampling slot by first
Sampling block 4 is fixed in sampling slot by the clamping on rotary screw 21 and sampling slot inner sidewall both direction with this.
Thermocouple sensor 5 has thermocouple thin slice.Sampling block 4 includes two pieces of sampling plates, and thermocouple thin slice is set to two pieces
Between sampling plate, and thermocouple thin slice, and the face to be ground of sampling block 4 and thermocouple thin slice are tightly seized and fixed to two pieces of sampling plates on both sides by the arms
Top be in the same plane.
The support frame seat of honour 2 is located at the top of support frame base 1, and grinding depth adjustment mechanism 3 includes being mutually perpendicular to and intersecting
Upper prop 31 and foundation 32, the face of joining of upper prop 31 and foundation 32 is inclined surface；Between the inclined surface and horizontal plane of upper prop 31
Angle is α；Angle between the inclined surface and horizontal plane of foundation 32 is similarly α；The preferred value range of α is 3 ° to 13 °.
Upper prop 31 is connected on the support frame seat of honour 2 far from one end longitudinally-moving of foundation 32, the laterally movable connection of foundation 32
In on support frame base 1；The bottom surface at the support frame seat of honour 2 is concaved with telescopic chute, and upper prop 31 is protruded into far from one end of foundation 32
In telescopic chute, and the support frame seat of honour 2 is equipped with the locking mechanism being fixed on upper prop 31 in telescopic chute；Support frame base 1 is in upper prop
31 underface is provided with guide post cylinder 11, and upper prop 31 can be up and down in guide post cylinder 11 close to one end of foundation 32, and upper prop
31 lateral wall is bonded the inner sidewall of guide post cylinder 11 and the inner sidewall of telescopic chute.It is led in the direction of prolonging in week of such upper prop 31
The limitation of column casing 11, guide post cylinder 11 can limit five freedom of motion of upper prop 31.
Guide post cylinder 11 offers guide pillar hole 111 towards the one side of foundation 32, and foundation 32 can be protruded by guide pillar hole 111 and be led
In column casing 11.Such foundation 32 can intersect vertically in guide post cylinder 11 with upper prop 31.
Locking mechanism upper prop 31 being fixed in telescopic chute, it is preferred to use the second rotary screw 22 is fixed, the second rotation
Screw 22 is screwed on the lateral wall at the support frame seat of honour 2, and the bottom of the second rotary screw 22 can be from the outer of the support frame seat of honour 2
Side wall is threaded in or out telescopic chute；The bottom of second rotary screw 22 screws in the bottom end of the second rotary screw 22 when in telescopic chute
Face can squeeze the side of upper prop 31, so that upper prop 31 protrudes into the part of telescopic chute by the second rotary screw 22 and telescopic chute
Upper prop 31 is fixed in telescopic chute by the clamping in side wall both direction with this.
Guide rod 12 is laterally fixedly installed on support frame base 1, foundation 32 is slidably connected on guide rod 12, foundation 32
Along the transverse shifting on support frame base 1 of guide rod 12.
In this way, foundation 32 is outside plus when transverse shifting a distance under the action of driving device, corresponding upper prop 31 is perpendicular
Histogram can move a distance upwards.Such as when α=5.71 °, 32 transverse shifting 0.1mm of foundation, then upper prop 31 is in vertical side
0.01mm can be moved upwards, and further, the difference in height of the support frame seat of honour 2 and support frame base 1 has finely tuned 0.01mm, then samples
The difference in height of block 4 and support frame base 1 has finely tuned 0.01mm.
As a preferred embodiment:
Guide rod 12 is existing conventional screw rod, offers wire rod thread on foundation 32.Pass through screw rod and wire rod thread
Cooperation, rotation guide rod 12 can drive foundation 32 to slide.The additional driving device preferably uses conventional lead screw motor, leads to
Screw rod motor driven guide rod 12 is crossed, the sliding of foundation 32 is further controlled.
The support frame seat of honour 2 and support frame base 1 can be adjusted with this by adjusting the position of upper prop 31 and/or foundation 32
Difference in height, facilitate grinding wheel 8 to carry out the grinding of different grinding depths to sampling block 4.
The output end of thermocouple sensor 5 is connected with signal picker 6 by thermocouple connecting line, signal picker 6
Output end connects PC machine 7.
6 hardware system of signal picker of the present invention, as shown in Figure 1, what the voltage signal that thermocouple sensor 5 exports indicated
It is temperature of the pyrometer fire-end relative to cold end, it is corresponding to carry out cold junction compensation acquisition to voltage by cold-junction compensation circuit
The voltage value of actual grinding temperature signal；Then microprocessor, microprocessor are transferred to after signal amplification circuit is converted
It is preferred that using the microprocessor of model STM32F767IGT.Microprocessor is converted into grinding temperature signal to lead to after digital quantity
It crosses Ethernet interface and grinding temperature signal is transferred to PC machine 7, the data analyzed finally are uploaded into cloud storage, facilitate monitoring
And access.
A kind of workflow for the device for monitoring wheel passivatio state on-line of the present invention, as shown in Fig. 2, when grinding wheel 8 is ground
To sampling block 4, thermocouple sensor 5 generates voltage signal (carrying grinding temperature signal), and voltage signal is connected by thermocouple
Line outflow is simultaneously converted into digital signal (carry grinding temperature signal) by signal picker 6, and signal picker 6 is by digital signal
(carrying grinding temperature signal) is transmitted to PC machine 7；
Then PC machine 7 collects grinding temperature signal online and is combined into temperature signal collection, and then 7 on-line analysis temperature of PC machine is believed
Number collection.The high-frequency signal quantity (i.e. abrasive grain thermal pulse quantity) in signal is extracted to identify 8 Effective grains' number of grinding wheel；Extract signal
In low frequency signal, and average to low frequency signal, identify wheel grinding contact zone temperature by averaging.
Finally, utilizing two factors of 8 Effective grains' number of grinding wheel and wheel grinding contact zone temperature and the good temperature of experimental calibration
Degree judges the state of 8 blunt of grinding wheel with this according to being compared.Realize 8 blunt state on_line monitoring of grinding wheel.
Wheel passivatio shape can not only effectively be monitored using a kind of device for monitoring wheel passivatio state on-line of the present invention
State, and it is easy to operate convenient for monitoring, improve monitoring efficiency.
The present invention is described in detail above in conjunction with attached drawing, but embodiments of the present invention be not limited in it is above-mentioned
Embodiment, those skilled in the art can make various modifications to the present invention according to the prior art, belong to guarantor of the invention
Protect range.
Claims (10)
1. a kind of method for monitoring wheel passivatio state on-line, it is characterised in that: the following steps are included:
Step 1, the grinding temperature signal that acquisition wheel grinding sampling block generates, and obtain temperature signal collection；
Step 2, it is concentrated from the temperature signal and extracts wheel grinding contact zone temperature and abrasive grain thermal shock signal, sand is identified with this
Take turns blunt state locating for grinding status and grinding wheel.
2. a kind of method for monitoring wheel passivatio state on-line according to claim 1, it is characterised in that: lead in step 1
The sampling block and thermocouple sensor are crossed, the grinding temperature signal is acquired, the collected grinding temperature in the unit time
Degree signal is combined into the temperature signal collection；By believing wheel grinding contact zone temperature and abrasive grain thermal shock in step 2
It number is compared with corresponding preset threshold, identifies blunt state locating for wheel grinding state and grinding wheel.
3. a kind of method for monitoring wheel passivatio state on-line according to claim 2, it is characterised in that: the temperature letter
Number collection include low frequency signal and high-frequency signal, step 2, from the temperature signal concentrate extract wheel grinding contact zone temperature
Particular content with the abrasive grain thermal shock signal includes: to extract the whole low frequency letter that a temperature signal is concentrated
Number, and average to the low frequency signal, wheel grinding contact zone temperature is identified by averaging；One of grinding wheel
Active grain generates a high-frequency signal when carrying out a thermal shock to the sampling block；Directly extract a temperature
The whole high-frequency signal that signal is concentrated is as the abrasive grain thermal shock signal.
4. a kind of method for monitoring wheel passivatio state on-line according to claim 1, it is characterised in that: sand in step 1
The grinding depth value range that wheel is ground the sampling block is 0.005mm to 0.05mm；The sampling block is according to monitored grinding wheel
Type be made of different materials.
5. a kind of method for monitoring wheel passivatio state on-line according to claim 2, it is characterised in that: the thermocouple
Thermocouple thin slice used by sensor selects corresponding thickness, and the thermoelectricity according to grinding wheel model and the difference of grinding parameter
The Thickness range of thermocouple thin slice used by even sensor is 0.004mm to 0.1mm.
6. a kind of device for monitoring wheel passivatio state on-line, it is characterised in that: including support frame base, the support frame seat of honour, mill
Cut depth adjustment mechanism, sampling block and thermocouple sensor, the grinding depth adjustment mechanism connection support frame as described above pedestal and
The support frame as described above seat of honour, and the grinding depth adjustment mechanism can adjust the support frame as described above seat of honour and support frame as described above pedestal
Distance, the sampling block are fixedly arranged on the support frame as described above seat of honour, and the thermocouple sensor is fixedly arranged on the sampling block.
7. a kind of device for monitoring wheel passivatio state on-line according to claim 6, it is characterised in that: the thermocouple
Sensor has thermocouple thin slice, and the sampling block includes two pieces of sampling plates, and the thermocouple thin slice is set to two pieces of samplings
Between plate, and two pieces of sampling plates seize the thermocouple thin slice on both sides by the arms, and the face to be ground of the sampling block and the thermocouple are thin
The top of piece is in the same plane.
8. a kind of device for monitoring wheel passivatio state on-line according to claim 6, it is characterised in that: support frame as described above
The seat of honour is located at the top of support frame as described above pedestal, and the grinding depth adjustment mechanism includes being mutually perpendicular to and the upper prop intersected and bottom
The face of joining of column, the upper prop and the foundation is inclined surface；The upper prop is movably connected on far from one end of the foundation
On the support frame as described above seat of honour, the foundation is movably connected on support frame as described above pedestal.
9. a kind of device for monitoring wheel passivatio state on-line according to claim 8, it is characterised in that: support frame as described above
The bottom surface at the seat of honour is concaved with telescopic chute, and the upper prop protrudes into the telescopic chute far from one end of the foundation, and described
The support frame seat of honour is equipped with the locking mechanism being fixed on the upper prop in the telescopic chute；Support frame as described above pedestal is in the upper prop
Underface be provided with guide post cylinder, the upper prop can be up and down in the guide post cylinder close to one end of the foundation, and institute
The lateral wall for stating upper prop is bonded the inner sidewall of the guide post cylinder.
10. a kind of device for monitoring wheel passivatio state on-line according to claim 6, it is characterised in that: the thermoelectricity
The output end of even sensor is connected with signal picker, and the output end of the signal picker connects PC machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910089047.2A CN109648478B (en) | 2019-01-30 | 2019-01-30 | Method and device for on-line monitoring grinding wheel grinding state |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910089047.2A CN109648478B (en) | 2019-01-30 | 2019-01-30 | Method and device for on-line monitoring grinding wheel grinding state |
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| CN109648478A true CN109648478A (en) | 2019-04-19 |
| CN109648478B CN109648478B (en) | 2024-02-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076659A (en) * | 2019-05-23 | 2019-08-02 | 华侨大学 | A kind of intelligent regulating mechanism and suppressing method for inhibiting grinding crack to generate |
| CN114603493A (en) * | 2022-03-22 | 2022-06-10 | 西安交通大学 | Grinding wheel with grinding temperature online measurement function |
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| CN110076659A (en) * | 2019-05-23 | 2019-08-02 | 华侨大学 | A kind of intelligent regulating mechanism and suppressing method for inhibiting grinding crack to generate |
| CN110076659B (en) * | 2019-05-23 | 2024-02-23 | 华侨大学 | Intelligent adjusting mechanism for inhibiting generation of grinding cracks and inhibiting method |
| CN114603493A (en) * | 2022-03-22 | 2022-06-10 | 西安交通大学 | Grinding wheel with grinding temperature online measurement function |
| CN114603493B (en) * | 2022-03-22 | 2023-02-07 | 西安交通大学 | Grinding wheel with grinding temperature online measurement function |
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