CN113752396B - Temperature control method and system for processing graphene material - Google Patents
Temperature control method and system for processing graphene material Download PDFInfo
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- CN113752396B CN113752396B CN202111323354.6A CN202111323354A CN113752396B CN 113752396 B CN113752396 B CN 113752396B CN 202111323354 A CN202111323354 A CN 202111323354A CN 113752396 B CN113752396 B CN 113752396B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4481—Neural networks
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- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
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Abstract
The invention discloses a temperature control method and system for graphene material processing, which relate to the field of graphene processing and comprise the following steps: acquiring ultrasonic feedback information of a graphene material and integral temperature information of a processing area in the graphene processing process; comparing and analyzing the overall temperature information of the machining area with a preset temperature threshold, and cooling the machining drill bit according to the comparison and analysis result to enable the overall temperature information of the machining area to be within a threshold interval; determining a drilling mode of the processing drill bit according to a threshold interval in which the overall temperature information of the processing area falls; detecting defect information in the graphene processing process according to the ultrasonic feedback information, generating correction information according to the defect information, and adjusting parameters of a processing drill bit according to the correction information. According to the invention, the temperature in the graphene processing process is controlled, and the processing parameters are changed according to the processing defects of the graphene material, so that the defects are reduced, and the quality of the graphene product is ensured.
Description
Technical Field
The invention relates to the field of graphene processing, in particular to a temperature control method and system for processing a graphene material.
Background
Graphene is a two-dimensional carbon nanomaterial which is formed by carbon atoms through hybrid tracks and has a hexagonal honeycomb lattice, the graphene has excellent optical, electrical and mechanical properties, has important application prospects in the aspects of materials science, micro-nano processing, energy, biomedicine, drug delivery and the like, and is considered to be a future revolutionary material.
In order to intelligently control the cutting temperature in the processing process of the graphene material, a system needs to be developed to be matched with the graphene material for realization, and the system acquires ultrasonic feedback information of the graphene material in the processing process and integral temperature information of a processing area; comparing and analyzing the overall temperature information with a preset temperature threshold, cooling the machining drill bit according to the comparison and analysis result, and determining the drilling mode of the machining drill bit according to the overall temperature information of the machining area; and meanwhile, defect information in the graphene processing process is detected according to the ultrasonic feedback information, and the defect generation is reduced by generating correction information to correct processing parameters. In the implementation process of the system, how to intelligently cool down the processing drill bit in real time and how to detect the defect information in the graphene processing process according to the ultrasonic feedback information are all problems which need to be solved urgently.
Disclosure of Invention
In order to solve at least one technical problem, the invention provides a temperature control method and system for processing a graphene material.
The invention provides a temperature control method for processing a graphene material, which comprises the following steps:
acquiring ultrasonic feedback information of a graphene material and integral temperature information of a processing area in the graphene processing process;
comparing and analyzing the overall temperature information of the machining area with a preset temperature threshold, and cooling the machining drill bit according to the comparison and analysis result to enable the overall temperature information of the machining area to be within a threshold interval;
determining a drilling mode of the processing drill bit according to a threshold interval in which the overall temperature information of the processing area falls;
detecting defect information in the graphene processing process according to the ultrasonic feedback information, generating correction information according to the defect information, and adjusting parameters of a processing drill bit according to the correction information;
the whole temperature information of the processing area is obtained through a temperature measuring assembly, and the temperature measuring assembly comprises an annular mounting rack, a thermal radiation receiver, a converter and a signal processor; the ultrasonic feedback information is acquired by an ultrasonic sensor.
In this scheme, the obtaining of the whole temperature information of the processing area specifically includes:
acquiring a thermal radiation optical signal of a processing drill bit in a processing process, and generating an electric signal according to the thermal radiation optical signal;
expanding and converting the electric signal to obtain temperature values of different positions of the processing drill bit during processing;
and performing fitting analysis on the temperature values at different positions to obtain the overall temperature information of the processing area.
In this scheme, according to the whole temperature information in processing area, cool off the processing drill bit, include:
acquiring real-time overall temperature information of a processing area, and judging whether the real-time overall temperature information of the processing area is greater than a preset temperature threshold value or not;
if the water content is larger than the preset value, preparing cold water, and injecting the cold water through a first water inlet flow channel in the processing drill bit;
acquiring water temperature information in a drill bit, and calculating the temperature difference between the water temperature information and the real-time overall temperature information of a processing area according to the water temperature information;
judging whether the temperature difference is smaller than a preset temperature difference threshold value, if so, drawing back the water after absorbing the heat energy along a first water return flow channel, and preparing the water into cold water again through heat exchange;
and acquiring temperature acceleration information within preset time according to the real-time overall temperature information of the processing area, and adjusting the flow and the flow speed of the injected cold water according to the temperature acceleration information.
In this scheme, the determining the drilling mode of the processing drill bit according to the threshold interval in which the overall temperature information of the processing area falls specifically includes:
acquiring overall temperature information of a processing area of graphene during processing, and setting a drilling mode of a processing drill bit according to a threshold interval in which the overall temperature information falls;
presetting a first temperature threshold and a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold;
when the integral temperature information is smaller than a first temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a first feeding speed;
when the integral temperature information is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, setting the rotation speed to be constant rotation and the feeding speed to be a drilling mode of a second feeding speed;
when the integral temperature information is larger than the second temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a third feeding speed;
the first feed speed is greater than the second feed speed, which is greater than the third feed speed.
In this scheme, according to the defect information in the ultrasonic feedback information detection graphite alkene course of working, specifically do:
acquiring ultrasonic feedback information in the graphene processing process, and preprocessing the ultrasonic feedback information by a wavelet transform method to extract a defect characteristic coefficient and a defect amplitude coefficient;
carrying out waveform reconstruction according to the defect characteristic coefficient and the defect amplitude coefficient, and carrying out filtering processing on a reconstructed waveform;
establishing a defect detection model based on a neural network, and acquiring a defect sample and a non-defect sample as training data sets to train the defect detection model;
identifying a defect signal in the ultrasonic feedback information according to the defect detection model;
if the defect of the graphene material in the processing process is detected, marking the graphene material as an unqualified product;
judging the depth information of the defects in the graphene material, and calculating the utilization rate according to the depth information to judge whether the graphene material can be secondarily utilized;
and if the utilization rate is greater than a preset utilization rate threshold value, carrying out defect marking on the graphene material, and transporting the graphene material to a temporary storage area to match with a proper processing scheme.
In this scheme, the generating of the correction information according to the defect information and the adjusting of the parameters of the drill bit according to the correction information specifically include:
when the defect of the graphene material is detected, acquiring current rotating speed information of a processing drill bit and integral temperature information of a current processing area;
and matching the current rotating speed information and the overall temperature information of the current machining area according to the defect information to generate correction information, and adjusting the machining parameters of the machining drill bit through the correction information to change the drilling mode of the machining drill bit.
The second aspect of the present invention also provides a temperature control system for processing a graphene material, the system comprising: the temperature control method program for graphene material processing is executed by the processor to realize the following steps:
acquiring ultrasonic feedback information of a graphene material and integral temperature information of a processing area in the graphene processing process;
comparing and analyzing the overall temperature information of the machining area with a preset temperature threshold, and cooling the machining drill bit according to the comparison and analysis result to enable the overall temperature information of the machining area to be within a threshold interval;
determining a drilling mode of the processing drill bit according to a threshold interval in which the overall temperature information of the processing area falls;
detecting defect information in the graphene processing process according to the ultrasonic feedback information, generating correction information according to the defect information, and adjusting parameters of a processing drill bit according to the correction information;
the whole temperature information of the processing area is obtained through a temperature measuring assembly, and the temperature measuring assembly comprises an annular mounting rack, a thermal radiation receiver, a converter and a signal processor; the ultrasonic feedback information is acquired by an ultrasonic sensor.
In this scheme, the obtaining of the whole temperature information of the processing area specifically includes:
acquiring a thermal radiation optical signal of a processing drill bit in a processing process, and generating an electric signal according to the thermal radiation optical signal;
expanding and converting the electric signal to obtain temperature values of different positions of the processing drill bit during processing;
and performing fitting analysis on the temperature values at different positions to obtain the overall temperature information of the processing area.
In this scheme, according to the whole temperature information in processing area, cool off the processing drill bit, include:
acquiring real-time overall temperature information of a processing area, and judging whether the real-time overall temperature information of the processing area is greater than a preset temperature threshold value or not;
if the water content is larger than the preset value, preparing cold water, and injecting the cold water through a first water inlet flow channel in the processing drill bit;
acquiring water temperature information in a drill bit, and calculating the temperature difference between the water temperature information and the real-time overall temperature information of a processing area according to the water temperature information;
judging whether the temperature difference is smaller than a preset temperature difference threshold value, if so, drawing back the water after absorbing the heat energy along a first water return flow channel, and preparing the water into cold water again through heat exchange;
and acquiring temperature acceleration information within preset time according to the real-time overall temperature information of the processing area, and adjusting the flow and the flow speed of the injected cold water according to the temperature acceleration information.
In this scheme, the determining the drilling mode of the processing drill bit according to the threshold interval in which the overall temperature information of the processing area falls specifically includes:
acquiring overall temperature information of a processing area of graphene during processing, and setting a drilling mode of a processing drill bit according to a threshold interval in which the overall temperature information falls;
presetting a first temperature threshold and a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold;
when the integral temperature information is smaller than a first temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a first feeding speed;
when the integral temperature information is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, setting the rotation speed to be constant rotation and the feeding speed to be a drilling mode of a second feeding speed;
when the integral temperature information is larger than the second temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a third feeding speed;
the first feed speed is greater than the second feed speed, which is greater than the third feed speed.
In this scheme, according to the defect information in the ultrasonic feedback information detection graphite alkene course of working, specifically do:
acquiring ultrasonic feedback information in the graphene processing process, and preprocessing the ultrasonic feedback information by a wavelet transform method to extract a defect characteristic coefficient and a defect amplitude coefficient;
carrying out waveform reconstruction according to the defect characteristic coefficient and the defect amplitude coefficient, and carrying out filtering processing on a reconstructed waveform;
establishing a defect detection model based on a neural network, and acquiring a defect sample and a non-defect sample as training data sets to train the defect detection model;
identifying a defect signal in the ultrasonic feedback information according to the defect detection model;
if the defect of the graphene material in the processing process is detected, marking the graphene material as an unqualified product;
judging the depth information of the defects in the graphene material, and calculating the utilization rate according to the depth information to judge whether the graphene material can be secondarily utilized;
and if the utilization rate is greater than a preset utilization rate threshold value, carrying out defect marking on the graphene material, and transporting the graphene material to a temporary storage area to match with a proper processing scheme.
In this scheme, the generating of the correction information according to the defect information and the adjusting of the parameters of the drill bit according to the correction information specifically include:
when the defect of the graphene material is detected, acquiring current rotating speed information of a processing drill bit and integral temperature information of a current processing area;
and matching the current rotating speed information and the overall temperature information of the current machining area according to the defect information to generate correction information, and adjusting the machining parameters of the machining drill bit through the correction information to change the drilling mode of the machining drill bit.
The invention discloses a temperature control method and system for graphene material processing, which relate to the field of graphene processing and comprise the following steps: acquiring ultrasonic feedback information of a graphene material and integral temperature information of a processing area in the graphene processing process; comparing and analyzing the overall temperature information of the machining area with a preset temperature threshold, and cooling the machining drill bit according to the comparison and analysis result to enable the overall temperature information of the machining area to be within a threshold interval; determining a drilling mode of the processing drill bit according to a threshold interval in which the overall temperature information of the processing area falls; detecting defect information in the graphene processing process according to the ultrasonic feedback information, generating correction information according to the defect information, and adjusting parameters of a processing drill bit according to the correction information. According to the invention, the temperature in the graphene processing process is controlled, and the processing parameters are changed according to the processing defects of the graphene material, so that the defects are reduced, and the quality of the graphene product is ensured.
Drawings
Fig. 1 shows a flow chart of a temperature control method of graphene material processing according to the present invention;
FIG. 2 is a flow chart illustrating a method of cooling a machining bit according to bulk temperature information of a machining region according to the present invention;
FIG. 3 is a flow chart of a method for detecting defect information in a graphene processing process according to ultrasonic feedback information;
fig. 4 shows a block diagram of a temperature control system for graphene material processing according to the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 shows a flow chart of a temperature control method for graphene material processing according to the present invention.
As shown in fig. 1, a first aspect of the present invention provides a temperature control method for processing a graphene material, including:
s102, acquiring ultrasonic feedback information of a graphene material and overall temperature information of a processing area in the graphene processing process;
s104, comparing and analyzing the overall temperature information of the machining area with a preset temperature threshold, and cooling the machining drill bit according to the comparison and analysis result to enable the overall temperature information of the machining area to be within a threshold interval;
s106, determining a drilling mode of the processing drill bit according to a threshold interval in which the overall temperature information of the processing area falls;
s108, detecting defect information in the graphene processing process according to the ultrasonic feedback information, generating correction information according to the defect information, and adjusting parameters of a processing drill bit according to the correction information;
it should be noted that the overall temperature information of the processing region is acquired by a temperature measurement component, and the temperature measurement component comprises an annular mounting frame, a thermal radiation receiver, a converter and a signal processor; the ultrasonic feedback information is acquired by an ultrasonic sensor. In the processing process of the graphene material, a plurality of thermal radiation receivers are used for acquiring a plurality of temperature values of a processing area near a processing drill bit at different angles and different distances.
It should be noted that the obtaining of the temperature information of the whole processing area specifically includes:
acquiring a thermal radiation optical signal of a processing drill bit in a processing process, and generating an electric signal according to the thermal radiation optical signal;
expanding and converting the electric signal to obtain temperature values of different positions of the processing drill bit during processing;
and performing fitting analysis on the temperature values at different positions to obtain the overall temperature information of the processing area.
Fig. 2 is a flow chart illustrating a method for cooling a machining bit according to overall temperature information of a machining area.
According to the embodiment of the invention, the cooling of the processing drill bit is carried out according to the overall temperature information of the processing area, and the cooling method comprises the following steps:
s202, acquiring real-time overall temperature information of a processing area, and judging whether the real-time overall temperature information of the processing area is greater than a preset temperature threshold value or not;
s204, if the water content is larger than the preset value, preparing cold water, and injecting the cold water through a first water inlet flow channel in the processing drill bit;
s206, acquiring water temperature information in the drill bit, and calculating the temperature difference between the water temperature information and the real-time overall temperature information of the processing area according to the water temperature information;
s208, judging whether the temperature difference is smaller than a preset temperature difference threshold value, if so, drawing back the water after absorbing the heat energy along the first water return flow channel, and preparing the water into cold water again through heat exchange;
s210, acquiring temperature acceleration information within preset time according to the real-time overall temperature information of the processing area, and adjusting the flow and the flow speed of the injected cold water according to the temperature acceleration information.
It should be noted that, because processing drill bit and graphite alkene material direct contact in graphite alkene course of working, can produce a large amount of heat energy and make the temperature rise rapidly under the effect of frictional force, and the rising of processing temperature can make processingquality descend, cause the defect to increase, high temperature also can influence the life-span of processing drill bit simultaneously, consequently be equipped with a water inlet runner and a return water runner in processing drill bit at least, cool water is cooled down through introducing cold water, the temperature acceleration rate in the time is predetermine to processing drill bit rises, then will pour into the cold water cooling into to processing drill bit through many water inlet channels, improve the flow and the velocity of flow of pouring into cold water, the self-adaptation of cold water flow and velocity of flow is changed according to the change of processing drill bit temperature.
It should be noted that the determining the drilling mode of the processing drill according to the threshold interval in which the overall temperature information of the processing area falls specifically includes:
acquiring overall temperature information of a processing area of graphene during processing, and setting a drilling mode of a processing drill bit according to a threshold interval in which the overall temperature information falls;
presetting a first temperature threshold and a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold;
when the integral temperature information is smaller than a first temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a first feeding speed;
when the integral temperature information is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, setting the rotation speed to be constant rotation and the feeding speed to be a drilling mode of a second feeding speed;
when the integral temperature information is larger than the second temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a third feeding speed;
the first feed speed is greater than the second feed speed, which is greater than the third feed speed.
The feeding speed is a speed at which the feeding mechanism feeds the processing drill during drilling when the graphene material is processed. In order to reduce the defects of the graphene material in the processing process and keep the overall temperature information of the processing area in a proper range in the processing process, the graphene material can be processed with the maximum processing efficiency by matching proper drilling modes according to different temperature values, and the quality of the graphene material is ensured.
Fig. 3 shows a flowchart of a method for detecting defect information in a graphene processing process according to ultrasonic feedback information.
According to the embodiment of the invention, the detecting of the defect information in the processing process of the graphene according to the ultrasonic feedback information specifically comprises the following steps:
s302, ultrasonic feedback information in the graphene processing process is obtained, and the ultrasonic feedback information is preprocessed through a wavelet transform method to extract a defect characteristic coefficient and a defect amplitude coefficient;
s304, waveform reconstruction is carried out according to the defect characteristic coefficient and the defect amplitude coefficient, and the reconstructed waveform is filtered;
s306, establishing a defect detection model based on a neural network, and collecting a defect sample and a non-defect sample as training data sets to train the defect detection model;
s308, identifying a defect signal in the ultrasonic feedback information according to the defect detection model;
s310, if the graphene material is detected to have defects in the processing process, marking the graphene material as an unqualified product;
s312, judging depth information of the defects in the graphene material, and calculating the utilization rate according to the depth information to judge whether the graphene material can be secondarily utilized;
and S314, if the utilization rate is greater than a preset utilization rate threshold value, marking defects of the graphene material, and transporting the graphene material to a temporary storage area to match with a proper processing scheme.
It should be noted that the depth information of the defect in the graphene material is determined by the time of occurrence and return of the defect signal in the reconstructed waveform, and specifically includes:
wherein the content of the first and second substances,
depth information representing the depth of the defect,
represents the sound velocity of the ultrasonic wave in the graphene material,
indicating the first time a defect feature appears in the waveform,
indicating a second time of occurrence of the defect feature;
determining an internal defect influence area by acquiring internal defect depth information of the graphene material, and comparing the area of the internal defect influence area with the total area of the graphene material or the area between preset ranges to acquire the utilization rate of the graphene material with internal defects.
It should be noted that the reconstructed waveform shows the obvious characteristics of the defect signal, and is used to detect whether there is a defect inside the graphene processing, and meanwhile, avoid the defect signal being regarded as a noise signal. And filtering the reconstructed waveform to suppress the amplitude of the noise signal and keep the amplitude of the defect signal, thereby improving the signal-to-noise ratio of the defect signal.
The generating of the correction information by the defect information and the adjusting of the parameters of the machining drill according to the correction information may specifically be:
when the defect of the graphene material is detected, acquiring current rotating speed information of a processing drill bit and integral temperature information of a current processing area;
and matching the current rotating speed information and the overall temperature information of the current machining area according to the defect information to generate correction information, and adjusting the machining parameters of the machining drill bit through the correction information to change the drilling mode of the machining drill bit.
According to the embodiment of the invention, when the graphene material is drilled and processed, the ultrasonic sensor monitors the trend of the processing drill bit in real time, and prevents the drill bit from deviating, and the method specifically comprises the following steps:
establishing a graphene material processing three-dimensional model, acquiring position information of a drilling hole and a processing drill bit through an ultrasonic sensor, and displaying the position information through the graphene material processing three-dimensional model according to a preset mode;
acquiring a wall thickness value of the graphene material around the drilling position according to ultrasonic feedback information of an ultrasonic sensor, and acquiring a standard wall thickness value after drilling processing is completed according to the graphene material processing three-dimensional model;
comparing and analyzing the wall thickness value and a standard wall thickness value, and judging whether the difference value between the wall thickness value and the standard wall thickness value is greater than a preset difference threshold value;
if the current machining operation is larger than the preset machining operation threshold, the current machining operation is suspended, alarm information is generated, the alarm information is displayed according to a preset mode, and meanwhile parameters of machining the drill bit and the auxiliary tool are adjusted.
The method includes the steps of establishing a graphene material processing three-dimensional model by using a three-dimensional reconstruction method, marking a drilling position and a processing drill bit position in the processing three-dimensional model by using position coordinate information, obtaining a wall thickness value by measuring the round-trip propagation time of ultrasonic pulses in a graphene material, measuring the time difference of surface reflection waves of the ultrasonic waves in the thickness direction of the graphene material, obtaining the sound velocity of the ultrasonic waves in the graphene material, and taking the half of the product of the time difference and the sound velocity as the wall thickness value.
Fig. 4 shows a block diagram of a temperature control system for graphene material processing according to the present invention.
The second aspect of the present invention also provides a temperature control system 4 for processing graphene materials, which includes: a memory 41 and a processor 42, wherein the memory includes a program for controlling temperature in processing graphene materials, and when the program for controlling temperature in processing graphene materials is executed by the processor, the following steps are implemented:
acquiring ultrasonic feedback information of a graphene material and integral temperature information of a processing area in the graphene processing process;
comparing and analyzing the overall temperature information of the machining area with a preset temperature threshold, and cooling the machining drill bit according to the comparison and analysis result to enable the overall temperature information of the machining area to be within a threshold interval;
determining a drilling mode of the processing drill bit according to a threshold interval in which the overall temperature information of the processing area falls;
detecting defect information in the graphene processing process according to the ultrasonic feedback information, generating correction information according to the defect information, and adjusting parameters of a processing drill bit according to the correction information;
it should be noted that the overall temperature information of the processing region is acquired by a temperature measurement component, and the temperature measurement component comprises an annular mounting frame, a thermal radiation receiver, a converter and a signal processor; the ultrasonic feedback information is acquired by an ultrasonic sensor. In the processing process of the graphene material, a plurality of thermal radiation receivers are used for acquiring a plurality of temperature values of a processing area near a processing drill bit at different angles and different distances.
It should be noted that the obtaining of the temperature information of the whole processing area specifically includes:
acquiring a thermal radiation optical signal of a processing drill bit in a processing process, and generating an electric signal according to the thermal radiation optical signal;
expanding and converting the electric signal to obtain temperature values of different positions of the processing drill bit during processing;
and performing fitting analysis on the temperature values at different positions to obtain the overall temperature information of the processing area.
According to the embodiment of the invention, the cooling of the processing drill bit is carried out according to the overall temperature information of the processing area, and the cooling method comprises the following steps:
acquiring real-time overall temperature information of a processing area, and judging whether the real-time overall temperature information of the processing area is greater than a preset temperature threshold value or not;
if the water content is larger than the preset value, preparing cold water, and injecting the cold water through a first water inlet flow channel in the processing drill bit;
acquiring water temperature information in a drill bit, and calculating the temperature difference between the water temperature information and the real-time overall temperature information of a processing area according to the water temperature information;
judging whether the temperature difference is smaller than a preset temperature difference threshold value, if so, drawing back the water after absorbing the heat energy along a first water return flow channel, and preparing the water into cold water again through heat exchange;
and acquiring temperature acceleration information within preset time according to the real-time overall temperature information of the processing area, and adjusting the flow and the flow speed of the injected cold water according to the temperature acceleration information.
It should be noted that, because processing drill bit and graphite alkene material direct contact in graphite alkene course of working, can produce a large amount of heat energy and make the temperature rise rapidly under the effect of frictional force, and the rising of processing temperature can make processingquality descend, cause the defect to increase, high temperature also can influence the life-span of processing drill bit simultaneously, consequently be equipped with a water inlet runner and a return water runner in processing drill bit at least, cool water is cooled down through introducing cold water, the temperature acceleration rate in the time is predetermine to processing drill bit rises, then will pour into the cold water cooling into to processing drill bit through many water inlet channels, improve the flow and the velocity of flow of pouring into cold water, the self-adaptation of cold water flow and velocity of flow is changed according to the change of processing drill bit temperature.
It should be noted that the determining the drilling mode of the processing drill according to the threshold interval in which the overall temperature information of the processing area falls specifically includes:
acquiring overall temperature information of a processing area of graphene during processing, and setting a drilling mode of a processing drill bit according to a threshold interval in which the overall temperature information falls;
presetting a first temperature threshold and a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold;
when the integral temperature information is smaller than a first temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a first feeding speed;
when the integral temperature information is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, setting the rotation speed to be constant rotation and the feeding speed to be a drilling mode of a second feeding speed;
when the integral temperature information is larger than the second temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a third feeding speed;
the first feed speed is greater than the second feed speed, which is greater than the third feed speed.
The feeding speed is a speed at which the feeding mechanism feeds the processing drill during drilling when the graphene material is processed. In order to reduce the defects of the graphene material in the processing process and keep the overall temperature information of the processing area in a proper range in the processing process, the graphene material can be processed with the maximum processing efficiency by matching proper drilling modes according to different temperature values, and the quality of the graphene material is ensured.
According to the embodiment of the invention, the detecting of the defect information in the processing process of the graphene according to the ultrasonic feedback information specifically comprises the following steps:
acquiring ultrasonic feedback information in the graphene processing process, and preprocessing the ultrasonic feedback information by a wavelet transform method to extract a defect characteristic coefficient and a defect amplitude coefficient;
carrying out waveform reconstruction according to the defect characteristic coefficient and the defect amplitude coefficient, and carrying out filtering processing on a reconstructed waveform;
establishing a defect detection model based on a neural network, and acquiring a defect sample and a non-defect sample as training data sets to train the defect detection model;
identifying a defect signal in the ultrasonic feedback information according to the defect detection model;
if the defect of the graphene material in the processing process is detected, marking the graphene material as an unqualified product;
judging the depth information of the defects in the graphene material, and calculating the utilization rate according to the depth information to judge whether the graphene material can be secondarily utilized;
and if the utilization rate is greater than a preset utilization rate threshold value, carrying out defect marking on the graphene material, and transporting the graphene material to a temporary storage area to match with a proper processing scheme.
It should be noted that the depth information of the defect in the graphene material is determined by the time of occurrence and return of the defect signal in the reconstructed waveform, and specifically includes:
wherein the content of the first and second substances,
depth information representing the depth of the defect,
represents the sound velocity of the ultrasonic wave in the graphene material,
indicating the first time a defect feature appears in the waveform,
indicating a second time of occurrence of the defect feature;
determining an internal defect influence area by acquiring internal defect depth information of the graphene material, and comparing the area of the internal defect influence area with the total area of the graphene material or the area between preset ranges to acquire the utilization rate of the graphene material with internal defects.
It should be noted that the reconstructed waveform shows the obvious characteristics of the defect signal, and is used to detect whether there is a defect inside the graphene processing, and meanwhile, avoid the defect signal being regarded as a noise signal. And filtering the reconstructed waveform to suppress the amplitude of the noise signal and keep the amplitude of the defect signal, thereby improving the signal-to-noise ratio of the defect signal.
The generating of the correction information by the defect information and the adjusting of the parameters of the machining drill according to the correction information may specifically be:
when the defect of the graphene material is detected, acquiring current rotating speed information of a processing drill bit and integral temperature information of a current processing area;
and matching the current rotating speed information and the overall temperature information of the current machining area according to the defect information to generate correction information, and adjusting the machining parameters of the machining drill bit through the correction information to change the drilling mode of the machining drill bit.
According to the embodiment of the invention, when the graphene material is drilled and processed, the ultrasonic sensor monitors the trend of the processing drill bit in real time, and prevents the drill bit from deviating, and the method specifically comprises the following steps:
establishing a graphene material processing three-dimensional model, acquiring position information of a drilling hole and a processing drill bit through an ultrasonic sensor, and displaying the position information through the graphene material processing three-dimensional model according to a preset mode;
acquiring a wall thickness value of the graphene material around the drilling position according to ultrasonic feedback information of an ultrasonic sensor, and acquiring a standard wall thickness value after drilling processing is completed according to the graphene material processing three-dimensional model;
comparing and analyzing the wall thickness value and a standard wall thickness value, and judging whether the difference value between the wall thickness value and the standard wall thickness value is greater than a preset difference threshold value;
if the current machining operation is larger than the preset machining operation threshold, the current machining operation is suspended, alarm information is generated, the alarm information is displayed according to a preset mode, and meanwhile parameters of machining the drill bit and the auxiliary tool are adjusted.
The method includes the steps of establishing a graphene material processing three-dimensional model by using a three-dimensional reconstruction method, marking a drilling position and a processing drill bit position in the processing three-dimensional model by using position coordinate information, obtaining a wall thickness value by measuring the round-trip propagation time of ultrasonic pulses in a graphene material, measuring the time difference of surface reflection waves of the ultrasonic waves in the thickness direction of the graphene material, obtaining the sound velocity of the ultrasonic waves in the graphene material, and taking the half of the product of the time difference and the sound velocity as the wall thickness value.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. A temperature control method for processing a graphene material is characterized by comprising the following steps:
acquiring ultrasonic feedback information of the graphene material and overall temperature information of a processing area in the processing process of the graphene material;
comparing and analyzing the overall temperature information of the machining area with a preset temperature threshold, and cooling the machining drill bit according to the comparison and analysis result to enable the overall temperature information of the machining area to be within a threshold interval;
determining a drilling mode of the processing drill bit according to a threshold interval in which the overall temperature information of the processing area falls;
detecting defect information in the processing process of the graphene material according to the ultrasonic feedback information, generating correction information according to the defect information, and adjusting parameters of a processing drill bit according to the correction information;
the method for acquiring the whole temperature information of the processing area specifically comprises the following steps:
acquiring a thermal radiation optical signal of a processing drill bit in a processing process, and generating an electric signal according to the thermal radiation optical signal;
expanding and converting the electric signal to obtain temperature values of different positions of the processing drill bit during processing;
fitting and analyzing the temperature values of different positions to obtain the overall temperature information of the processing area;
will the whole temperature information in processing region carries out contrastive analysis with predetermineeing the temperature threshold value, carries out cooling to the processing drill bit according to contrastive analysis result, specifically is:
acquiring real-time overall temperature information of a processing area, and judging whether the real-time overall temperature information of the processing area is greater than a preset temperature threshold value or not;
if the water content is larger than the preset value, preparing cold water, and injecting the cold water through a first water inlet flow channel in the processing drill bit;
acquiring water temperature information in a drill bit, and calculating the temperature difference between the water temperature information and the real-time overall temperature information of a processing area according to the water temperature information;
judging whether the temperature difference is smaller than a preset temperature difference threshold value, if so, drawing back the water after absorbing the heat energy along a first water return flow channel, and preparing the water into cold water again through heat exchange;
acquiring temperature acceleration information within preset time according to real-time overall temperature information of a processing area, and adjusting the flow and the flow speed of injected cold water according to the temperature acceleration information;
the whole temperature information of the processing area is obtained through a temperature measuring assembly, and the temperature measuring assembly comprises an annular mounting rack, a thermal radiation receiver, a converter and a signal processor; the ultrasonic feedback information is acquired by an ultrasonic sensor.
2. The temperature control method for graphene material processing according to claim 1, wherein the determining of the drilling mode of the processing drill according to the threshold interval in which the overall temperature information of the processing area falls specifically includes:
acquiring overall temperature information of a processing area of the graphene material during processing, and setting a drilling mode of a processing drill bit according to a threshold interval in which the overall temperature information falls;
presetting a first temperature threshold and a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold;
when the integral temperature information is smaller than a first temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a first feeding speed;
when the integral temperature information is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, setting the rotation speed to be constant rotation and the feeding speed to be a drilling mode of a second feeding speed;
when the integral temperature information is larger than the second temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a third feeding speed;
the first feed speed is greater than the second feed speed, which is greater than the third feed speed.
3. The temperature control method for graphene material processing according to claim 1, wherein the detecting defect information in the graphene material processing process according to the ultrasonic feedback information specifically comprises:
acquiring ultrasonic feedback information in the processing process of a graphene material, and preprocessing the ultrasonic feedback information by a wavelet transform method to extract a defect characteristic coefficient and a defect amplitude coefficient;
carrying out waveform reconstruction according to the defect characteristic coefficient and the defect amplitude coefficient, and carrying out filtering processing on a reconstructed waveform;
establishing a defect detection model based on a neural network, acquiring a defect sample and a non-defect sample to generate a training data set, and training the defect detection model;
identifying a defect signal in the ultrasonic feedback information according to the defect detection model;
if the defect of the graphene material in the processing process is detected, marking the graphene material as an unqualified product;
judging the depth information of the defects in the graphene material, and calculating the utilization rate according to the depth information to judge whether the graphene material can be secondarily utilized;
and if the utilization rate is greater than a preset utilization rate threshold value, carrying out defect marking on the graphene material, and transporting the graphene material to a temporary storage area to match with a proper processing scheme.
4. The temperature control method for graphene material processing according to claim 1, wherein the defect information is used to generate correction information, and parameters of a processing drill are adjusted according to the correction information, specifically:
when the defect of the graphene material is detected, acquiring current rotating speed information of a processing drill bit and integral temperature information of a current processing area;
and matching the current rotating speed information and the overall temperature information of the current machining area according to the defect information to generate correction information, and adjusting the machining parameters of the machining drill bit through the correction information to change the drilling mode of the machining drill bit.
5. A temperature control system for processing of graphene materials, the system comprising: the temperature control method program for graphene material processing is executed by the processor, and the following steps are realized:
acquiring ultrasonic feedback information of the graphene material and overall temperature information of a processing area in the processing process of the graphene material;
comparing and analyzing the overall temperature information of the machining area with a preset temperature threshold, and cooling the machining drill bit according to the comparison and analysis result to enable the overall temperature information of the machining area to be within a threshold interval;
determining a drilling mode of the processing drill bit according to a threshold interval in which the overall temperature information of the processing area falls;
detecting defect information in the processing process of the graphene material according to the ultrasonic feedback information, generating correction information according to the defect information, and adjusting parameters of a processing drill bit according to the correction information;
the method for acquiring the whole temperature information of the processing area specifically comprises the following steps:
acquiring a thermal radiation optical signal of a processing drill bit in a processing process, and generating an electric signal according to the thermal radiation optical signal;
expanding and converting the electric signal to obtain temperature values of different positions of the processing drill bit during processing;
fitting and analyzing the temperature values of different positions to obtain the overall temperature information of the processing area;
will the whole temperature information in processing region carries out contrastive analysis with predetermineeing the temperature threshold value, carries out cooling to the processing drill bit according to contrastive analysis result, specifically is:
acquiring real-time overall temperature information of a processing area, and judging whether the real-time overall temperature information of the processing area is greater than a preset temperature threshold value or not;
if the water content is larger than the preset value, preparing cold water, and injecting the cold water through a first water inlet flow channel in the processing drill bit;
acquiring water temperature information in a drill bit, and calculating the temperature difference between the water temperature information and the real-time overall temperature information of a processing area according to the water temperature information;
judging whether the temperature difference is smaller than a preset temperature difference threshold value, if so, drawing back the water after absorbing the heat energy along a first water return flow channel, and preparing the water into cold water again through heat exchange;
acquiring temperature acceleration information within preset time according to real-time overall temperature information of a processing area, and adjusting the flow and the flow speed of injected cold water according to the temperature acceleration information;
the whole temperature information of the processing area is obtained through a temperature measuring assembly, and the temperature measuring assembly comprises an annular mounting rack, a thermal radiation receiver, a converter and a signal processor; the ultrasonic feedback information is acquired by an ultrasonic sensor.
6. The temperature control system for graphene material processing according to claim 5, wherein the determining of the drilling mode of the processing drill according to the threshold interval in which the overall temperature information of the processing area falls specifically includes:
acquiring overall temperature information of a processing area of the graphene material during processing, and setting a drilling mode of a processing drill bit according to a threshold interval in which the overall temperature information falls;
presetting a first temperature threshold and a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold;
when the integral temperature information is smaller than a first temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a first feeding speed;
when the integral temperature information is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, setting the rotation speed to be constant rotation and the feeding speed to be a drilling mode of a second feeding speed;
when the integral temperature information is larger than the second temperature threshold value, setting a drilling mode that the rotating speed is uniform acceleration rotation and the feeding speed is a third feeding speed;
the first feed speed is greater than the second feed speed, which is greater than the third feed speed.
7. The temperature control system for graphene material processing according to claim 5, wherein the detecting of the defect information in the graphene material processing process according to the ultrasonic feedback information specifically comprises:
acquiring ultrasonic feedback information in the processing process of a graphene material, and preprocessing the ultrasonic feedback information by a wavelet transform method to extract a defect characteristic coefficient and a defect amplitude coefficient;
carrying out waveform reconstruction according to the defect characteristic coefficient and the defect amplitude coefficient, and carrying out filtering processing on a reconstructed waveform;
establishing a defect detection model based on a neural network, acquiring a defect sample and a non-defect sample to generate a training data set, and training the defect detection model;
identifying a defect signal in the ultrasonic feedback information according to the defect detection model;
if the defect of the graphene material in the processing process is detected, marking the graphene material as an unqualified product;
judging the depth information of the defects in the graphene material, and calculating the utilization rate according to the depth information to judge whether the graphene material can be secondarily utilized;
and if the utilization rate is greater than a preset utilization rate threshold value, carrying out defect marking on the graphene material, and transporting the graphene material to a temporary storage area to match with a proper processing scheme.
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Denomination of invention: A Temperature Control Method and System for Graphene Material Processing Effective date of registration: 20221206 Granted publication date: 20220208 Pledgee: Postal Savings Bank of China Limited Shanxian sub branch Pledgor: SHANXIAN DUOMI GRAPHENE TECHNOLOGY Co.,Ltd. Registration number: Y2022980024784 |