CN114965714A - Splash-proof acoustic detection probe, splash-proof acoustic detection equipment and cutter wear detection method of splash-proof acoustic detection probe - Google Patents
Splash-proof acoustic detection probe, splash-proof acoustic detection equipment and cutter wear detection method of splash-proof acoustic detection probe Download PDFInfo
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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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
- B23Q17/0957—Detection of tool breakage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
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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
- G01N29/22—Details, e.g. general constructional or apparatus details
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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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2406—Electrostatic or capacitive probes, e.g. electret or cMUT-probes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the field of acoustic detection, and particularly discloses a splash-proof acoustic detection probe, equipment and a cutter abrasion detection method thereof, wherein the splash-proof acoustic detection probe comprises a plurality of industrial microphones, elastic protective shells are sleeved on the outer sides of the industrial microphones, the elastic protective shells are embedded into a collector circuit board, and a second through hole, a PVC (polyvinyl chloride) breathable net and a sound permeable membrane are sequentially arranged at the front end of the shell from outside to inside; the anti-splashing acoustic detection equipment comprises the anti-splashing acoustic detection probe and a host, and detects the abrasion state of the cutter by acquiring a sound signal of the machining process of the cutter. According to the invention, through the PVC breathable net, the sound-transmitting film and the completely waterproof shell, splashing chips and cooling liquid are prevented from damaging the industrial microphone; and through the combined work of a plurality of industrial microphones and the independent damping design, the acoustic detection probe can accurately and directionally collect the sound signals of the cutter machining process in a short distance, so that the interference is reduced, and the detection precision is improved.
Description
Technical Field
The invention relates to the field of acoustic detection, in particular to an anti-splashing acoustic detection probe, anti-splashing acoustic detection equipment and a cutter abrasion detection method of the anti-splashing acoustic detection probe.
Background
With the rapid development of modern industry, the requirements on the machining precision and efficiency of products are higher and higher, and in the high-speed cutting process, the used cutter is more and more precise, and the requirements on the state of the cutter are more and more strict. Because the cutter is when cutting metal, self can constantly receive wearing and tearing, after the cutter wearing and tearing reached certain degree, just need with the cutter of renewing, otherwise will influence the processingquality of product, produce bad consequences such as incident.
The existing tool wear detection is mostly in a manual observation or manual measurement mode, the detection is not comprehensive enough, and the wear condition of the tool cannot be monitored in real time; the cutting process is detected optically or acoustically, but the cutting process is low in detection precision, large in interference, poor in accuracy and limited in improvement of processing efficiency and quality. The device comprises a processing device, a cooling liquid, a cutter, an acoustic acquisition probe, a processing device and a data acquisition device, wherein the cooling liquid is used for cooling the cutting device, the cooling liquid and the cut waste material are splashed around along with high-speed processing, the surface temperature of the cutting device is high, the cooling liquid is evaporated to generate smoke, the difficulty is brought to the online monitoring of the abrasion condition of the cutting device, the optical detection cutting device is difficult to realize, the existing acoustic acquisition probe cannot be arranged near a cutter head where the waste material and the cooling liquid are splashed, the existing acoustic acquisition probe can only be arranged on the periphery of the processing device or attached to a part of the device, the accuracy of acquired sound signals is insufficient, the interference is serious, and the data accuracy is poor.
Disclosure of Invention
The invention provides an anti-splashing acoustic detection probe, equipment and a cutter abrasion detection method thereof, aiming at solving the problems that in the existing cutter abrasion state monitoring, optical detection of a cutter is difficult to realize, and an acoustic acquisition probe can only be arranged at the periphery of processing equipment or attached to a part of equipment components because the acoustic acquisition probe cannot be arranged near a cutter head with splashed waste materials and cooling liquid, so that the acquired sound signal is insufficient in precision, seriously interfered and poor in data accuracy.
The invention provides a splash-proof acoustic detection probe, which comprises: the system comprises a shell, a collector circuit board and a plurality of industrial microphones;
the front end of the shell is provided with a second through hole, and the inner side of the shell corresponding to the position of the second through hole is sequentially provided with a PVC (polyvinyl chloride) breathable net and a sound-transmitting film;
the collector circuit board is fixedly arranged on the inner side of the shell, a plurality of first through holes are formed in the collector circuit board, an elastic protective shell is sleeved on the outer side of each industrial microphone, each elastic protective shell is respectively connected with the first through holes in a one-to-one corresponding nesting mode, and each industrial microphone is electrically connected with the collector circuit board through a wire;
the back of the collector circuit board is provided with a cable interface, and the rear end of the shell is provided with a cable sealing sleeve.
Preferably, the number of the industrial microphones is six, and the six industrial microphones are uniformly arranged on the collector circuit board in an annular shape.
Preferably, the number of the PVC breathable nets is at least two, and the PVC breathable nets are arranged at the front and the rear of the sound transmission film.
Preferably, the shell comprises an inner cavity shell of the collector and an upper cover of the collector, the inner cavity shell of the collector and the upper cover of the collector are detachably connected, the PVC breathable net and the sound-permeable membrane are fixedly arranged between the inner cavity shell of the collector and the upper cover of the collector, and a waterproof gasket is further arranged between the inner cavity shell of the collector and the upper cover of the collector.
The present invention also provides a splash-proof acoustic detection apparatus, comprising: the acoustic detection probe for preventing splashing comprises a host and the acoustic detection probe for preventing splashing, wherein the host comprises a case, a display and a main control circuit board; a cable is arranged at the rear end of the acoustic detection probe, one end of the cable penetrates through the cable sealing sleeve and is electrically connected with the cable interface, and a waterproof aviation plug is arranged at the other end of the cable; the side surface of the case is provided with a waterproof aviation socket, a power supply interface and a data interface which are matched and connected with the waterproof aviation plug, the display is fixedly arranged on the upper surface of the case, and the main control circuit board is fixedly arranged on the inner side of the case; the main control circuit board is electrically connected with the waterproof aviation socket, the power interface, the data interface and the display respectively.
Preferably, a direct current switch power supply is arranged between the power supply interface and the main control circuit board, an isolation aluminum plate is arranged between the direct current switch power supply and the main control circuit board, and the isolation aluminum plate is electrically connected with the case.
Preferably, the side face of the case is provided with heat dissipation holes, the upper surface of the case is provided with a switch button, and the switch button is electrically connected with the direct-current switch power supply.
Preferably, the display includes touch-sensitive screen and the industrial computer that the electrical property links to each other, the industrial computer with main control circuit board electrical property links to each other, the industrial computer below is equipped with shows the ware fixed plate, the display fixed plate with the machine case is fixed and links to each other.
The invention also provides a method for detecting the wear state of the cutter, and the method for detecting the wear state of the cutter by using the splash-proof acoustic detection equipment comprises the following steps:
fixing an acoustic detection probe on one side of the cutter, and connecting the acoustic detection probe with the host through a cable;
a plurality of industrial microphones simultaneously acquire audio signals when the cutter works;
the main control circuit board performs noise reduction on the audio signals by analyzing the audio signals and according to the relative positions of the industrial microphones and the cutter to obtain noise reduction signals;
and the main control circuit board obtains and outputs the wear state of the cutter according to the noise reduction signal.
Preferably, the main control circuit board obtains and outputs the wear state of the tool according to the noise reduction signal, specifically:
collecting a noise reduction signal sample and a wear state sample of a cutter corresponding to the noise reduction signal sample, and constructing the noise reduction signal sample and the wear state sample into a training set and a testing set;
establishing a neural network model through a machine learning algorithm, and performing iterative optimization on the neural network model through the training set and the testing set to obtain a tool detection model;
and the main control circuit board obtains and outputs the wear state of the cutter according to the input noise reduction signal through the cutter detection model.
The invention has the beneficial effects that:
(1) the sound-transmitting membrane and the industrial microphone are protected by the PVC breathable net and the shell to prevent the sound-transmitting membrane and the industrial microphone from being damaged by splashed scraps, and the industrial microphone is prevented from being damaged by cooling liquid by the sound-transmitting membrane and the shell which is completely waterproof;
(2) through the combined work of a plurality of industrial microphones and the independent damping design, the acoustic detection probe can accurately and directionally collect the sound signals of the cutter machining process in a short distance, reduce the interference of other mechanical noises and splashes on the cutter abrasion detection, and improve the detection precision.
Drawings
The invention will be further described with reference to the accompanying drawings, in which:
FIG. 1 is a schematic cross-sectional view of a splash guard acoustic inspection probe in accordance with one embodiment of the present invention;
FIG. 2 is an exploded view of a splash proof acoustic inspection probe component in accordance with one embodiment of the present invention;
FIG. 3 is a schematic view of an anti-spatter acoustic detection device according to one embodiment of the present invention;
FIG. 4 is a schematic diagram of the internal structure of the splash-proof acoustic detection device according to one embodiment of the present invention;
FIG. 5 is a flow chart of a tool wear detection method according to one embodiment of the present invention.
In the figure: 1. an acoustic detection probe; 101. an industrial microphone; 102. an elastic protective shell; 103. a horizontal patch jack; 104. a cable gland; 105. a collector fixing hole; 106. sealing the ring; 107. a PVC breathable net; 108. a sound-transmitting membrane; 109. a collector circuit board; 110. an inner cavity shell of the collector; 111. the collector is covered; 112. a waterproof gasket; 2. a cable wire; 3. a waterproof aviation plug; 4. a waterproof aviation socket; 5. a display; 6. a chassis; 7. a switch button; 8. heat dissipation holes; 9. a direct current switching power supply; 10. an isolating aluminum plate; 11. supporting the copper column; 12. extending the copper pillar; 13. a main control circuit board; 14. a display fixing plate; 15. a USB integrated panel; 16. a wiring terminal; 17. a socket shaped like a Chinese character 'pin'.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 and 2, as one implementation of the present invention, there is disclosed a splash-proof acoustic detection probe, including: a housing, a collector circuit board 109, and a number of industrial microphones 101.
The front end of the shell is provided with a second through hole, and the inner side of the shell corresponding to the position of the second through hole is sequentially provided with a PVC (polyvinyl chloride) breathable net 107 and a sound-transmitting film 108; the sound-transmitting membrane 108 is a waterproof sound-transmitting membrane, specifically a thin membrane material made of expanded polytetrafluoroethylene (expanded PTFE).
The collector circuit board 109 of this embodiment is the ring type structure, collector circuit board 109 is fixed to be located the shell is inboard, be equipped with the first through-hole of a plurality of, every on the collector circuit board 109 all the cover is equipped with elastic protection shell 102, every in the industry microphone 101 outside elastic protection shell 102 respectively with first through-hole one-to-one is nested continuous, every industry microphone 101 all with collector circuit board 109 passes through the wire electrical property and links to each other.
The back of the collector circuit board 109 is provided with a cable interface, and the cable interface of the embodiment adopts a horizontal patch socket 103; the rear end of the shell is provided with a cable sealing sleeve 104, and a sealing ring 106 is further arranged at the joint of the cable sealing sleeve 104 and the shell and used for improving the sealing and waterproof performance of the shell.
Preferably, six industrial microphones 101 are arranged, the six industrial microphones 101 are uniformly arranged on the collector circuit board 109 in an annular manner, and every two adjacent industrial microphones 101 are spaced by 60 degrees in a fan shape to form an annular microphone array. The six industrial microphones 101 of the present embodiment are equal-sensitivity microphones, and the elastic protective shell 102 outside the microphones is a rubber protective shell, and the rubber protective shell is embedded on the collector circuit board 109 by pressing, and the rubber protective shell helps to relieve the influence of vibration on the industrial microphones 101.
Preferably, at least two PVC breathable nets 107 are arranged, and the PVC breathable nets 107 are arranged at the front and the rear of the sound-transmitting film 108. The two PVC ventilation nets 107 sandwich the sound-transmitting membrane 108 in front and back for preventing the sound-transmitting membrane 108 from being deformed by objects splashed at a high speed and erosion of cooling liquid,
preferably, the housing comprises an inner collector cavity shell 110 and an upper collector cover 111, the inner collector cavity shell 110 and the upper collector cover 111 are connected through threads, the PVC gas permeable net 107 and the sound permeable membrane 108 are both fixedly arranged between the inner collector cavity shell 110 and the upper collector cover 111, when the threads are screwed down, the PVC gas permeable net 107 and the sound permeable membrane 108 are fastened and fixed by the inner collector cavity shell 110 and the upper collector cover 111, a waterproof gasket 112 is further arranged between the inner collector cavity shell 110 and the upper collector cover 111, and the waterproof gasket 112 is used for improving the waterproof sealing performance between the PVC gas permeable net 107 and the inner collector cavity shell 110.
The side surface of the collector inner cavity shell 110 is also provided with a collector fixing hole 105; the collector fixing hole 105 is internally provided with a thread or a buckle and is not communicated with the inner side of the shell, and is used for fixing the whole acoustic detection probe 1.
Referring to fig. 3 and 4, the present embodiment also discloses a spatter prevention acoustic detection device, including: the acoustic detection probe comprises a host and the acoustic detection probe 1, wherein the host comprises a case 6, a display 5 and a main control circuit board 13;
a cable 2 is arranged at the rear end of the acoustic detection probe 1, one end of the cable 2 penetrates through the cable sealing sleeve 104 and is electrically connected with the cable interface, and a waterproof aviation plug 3 is arranged at the other end of the cable 2;
a waterproof aviation socket 4, a power interface and a data interface which are matched and connected with the waterproof aviation plug 3 are arranged on the side face of the case 6, the display 5 is fixedly arranged on the upper surface of the case 6, and the main control circuit board 13 is fixedly arranged on the inner side of the case 6; the main control circuit board 13 is electrically connected with the waterproof aviation socket 4, the power interface, the data interface and the display 5 respectively.
The data interface of this embodiment includes a plurality of USB interfaces integrated on the USB integrated panel 15 and the connection terminal 16, the power interface adopts a delta socket 17, and the chassis 6 is grounded through the delta socket 17.
Preferably, the case 6 of this embodiment is a square structure, the surface of which is provided with heat dissipation holes 8, the interior of which is provided with a dust screen and a USB integrated panel 15, the heat dissipation holes 8 are through-hole structures, the dust screen is in a strip shape and is connected to the case 6 through bolts and nuts, and the USB integrated panel 15 is connected to the case 6 through threads.
Preferably, a direct current switch power supply 9 is arranged between the power supply interface and the main control circuit board 13, an isolation aluminum plate 10 is arranged between the direct current switch power supply 9 and the main control circuit board 13, and the isolation aluminum plate 10 is electrically connected with the case 6. The direct current switch power supply 9 and the case 6 are fixed through screws, the isolation aluminum plate 10 is fixedly connected with the case 6 through the supporting copper column 11, and the main control circuit board 13 is fixed through the extending copper column 12.
Preferably, the upper surface of the case 6 is provided with a switch button 7, and the switch button 7 is electrically connected with the dc switch power supply 9 for turning on and off.
Preferably, the display 5 includes touch-sensitive screen and the industrial computer that the electrical property links to each other, the industrial computer with master control circuit board 13 electrical property links to each other, the industrial computer below is equipped with shows the ware fixed plate, display fixed plate 14 with machine case 6 is fixed continuous.
Preferably, the surface of the chassis 6 is formed with device fixing holes, and the device fixing holes are used for fixing the chassis 6.
Referring to fig. 5, the method for detecting the wear state of the cutting tool disclosed in this embodiment uses the above-mentioned anti-spatter acoustic detection device to detect the wear state of the cutting tool, and includes the following steps:
s1, fixing the acoustic detection probe 1 on one side of the cutter, and connecting the acoustic detection probe 1 with the host machine through a cable 2;
s2, simultaneously acquiring audio signals of the cutter during working by a plurality of industrial microphones 101;
s3, the main control circuit board 13 performs noise reduction on the audio signals by analyzing the audio signals and according to the relative positions of the industrial microphones 101 and the cutters to obtain noise reduction signals;
and S4, obtaining and outputting the wear state of the cutter by the main control circuit board 13 according to the noise reduction signal.
Due to the fact that the industrial microphones 101 at different positions have differences among the audio signals collected by the sound sources at different positions, the audio signals of the industrial microphones 101 at different positions are analyzed for each audio with different tone qualities, tone colors and loudness, whether the sound sources are in the same direction can be confirmed, and therefore most of noise except the cutter machining sound can be eliminated.
Wherein, in the step S4, the method specifically includes the following sub-steps:
s41, collecting noise reduction signal samples and wear state samples of corresponding cutters, and constructing the noise reduction signal samples and the wear state samples into a training set and a testing set;
s42, constructing a neural network model through a machine learning algorithm, and performing iterative optimization on the neural network model through the training set and the testing set to obtain a tool detection model;
and S43, acquiring and outputting the wear state of the cutter according to the input noise reduction signal through the cutter detection model by the main control circuit board 13.
The invention also discloses a terminal device, which comprises a processor and a storage device, wherein the storage device is used for storing one or more programs; when the one or more programs are executed by the processor, the processor implements the method of detecting a wear state of a tool described above. The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, which is the control center for the test equipment and connects the various parts of the overall test equipment using various interfaces and lines.
The storage means may be adapted to store computer programs and/or modules, and the processor may be adapted to implement various functions of the terminal device by running or executing the computer programs and/or modules stored in the storage means and by invoking data stored in the storage means. The storage device may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the storage device may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein, an integrated module/unit of the splash-proof acoustic detection device can be stored in a computer readable storage medium if the integrated module/unit is realized in the form of a software functional unit and sold or used as an independent product. Based on such understanding, all or part of the flow in the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in at least one computer-readable storage medium and used for instructing related hardware to implement the steps of the above-described embodiments of the method when executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like.
It should be noted that the above-described embodiments of the apparatus and device are merely schematic, where units illustrated as separate components may or may not be physically separate, and components illustrated as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. For example, a host is integrated in the acoustic detection probe 1, or an output signal of the acoustic detection probe 1 is sent to any device or cloud terminal via the internet to realize the detection function thereof
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (10)
1. An anti-spatter acoustic detection probe, comprising: the system comprises a shell, a collector circuit board and a plurality of industrial microphones;
the front end of the shell is provided with a second through hole, and the inner side of the shell corresponding to the position of the second through hole is sequentially provided with a PVC (polyvinyl chloride) breathable net and a sound transmission film;
the collector circuit board is fixedly arranged on the inner side of the shell, a plurality of first through holes are formed in the collector circuit board, an elastic protective shell is sleeved on the outer side of each industrial microphone, each elastic protective shell is respectively connected with the first through holes in a one-to-one corresponding nesting mode, and each industrial microphone is electrically connected with the collector circuit board through a wire;
the back of the collector circuit board is provided with a cable interface, and the rear end of the shell is provided with a cable sealing sleeve.
2. The anti-spattering acoustic detection probe according to claim 1, wherein six industrial microphones are provided, and the six industrial microphones are uniformly provided on the collector circuit board in a ring shape.
3. The anti-spattering acoustic detection probe according to claim 1, wherein at least two PVC air-permeable nets are provided, and the PVC air-permeable nets are provided at the front and the rear of the sound-permeable membrane.
4. The anti-splashing acoustic detection probe according to claim 3, wherein the housing comprises an inner collector cavity shell and an upper collector cover, the inner collector cavity shell and the upper collector cover are detachably connected, the PVC breathable net and the sound permeable membrane are both fixedly arranged between the inner collector cavity shell and the upper collector cover, and a waterproof gasket is further arranged between the inner collector cavity shell and the upper collector cover.
5. An anti-spatter acoustic detection device, comprising: a host and an anti-spatter acoustic detection probe according to any one of claims 1 to 4, the host comprising a case, a display and a main control circuit board;
a cable is arranged at the rear end of the acoustic detection probe, one end of the cable penetrates through the cable sealing sleeve and is electrically connected with the cable interface, and a waterproof aviation plug is arranged at the other end of the cable;
the side surface of the case is provided with a waterproof aviation socket, a power supply interface and a data interface which are matched and connected with the waterproof aviation plug, the display is fixedly arranged on the upper surface of the case, and the main control circuit board is fixedly arranged on the inner side of the case;
the main control circuit board is electrically connected with the waterproof aviation socket, the power interface, the data interface and the display respectively.
6. The acoustic detection equipment that prevents splashing of claim 5, characterized in that, be equipped with direct current switching power supply between power source and the main control circuit board, be equipped with isolation aluminum plate between direct current switching power supply and the main control circuit board, isolation aluminum plate and quick-witted case electrically conductive continuous.
7. The acoustic detection equipment that prevents splashing of claim 6, wherein the side of the chassis is provided with a heat dissipation hole, the upper surface of the chassis is provided with a switch button, and the switch button is electrically connected with the DC switching power supply.
8. The anti-splashing acoustic detection device according to claim 5, wherein the display comprises a touch screen and an industrial personal computer which are electrically connected, the industrial personal computer is electrically connected with the main control circuit board, a display fixing plate is arranged below the industrial personal computer, and the display fixing plate is fixedly connected with the case.
9. A method for detecting a wear state of a tool, wherein the splash-proof acoustic detection device of any one of claims 5 to 8 is used, and the method for detecting the wear state of the tool comprises the following steps:
fixing an acoustic detection probe on one side of the cutter, and connecting the acoustic detection probe with the host through a cable;
a plurality of industrial microphones simultaneously acquire audio signals when the cutter works;
the main control circuit board performs noise reduction on the audio signals by analyzing the audio signals and according to the relative positions of the industrial microphones and the cutter to obtain noise reduction signals;
and the main control circuit board obtains and outputs the wear state of the cutter according to the noise reduction signal.
10. The method for detecting the wear state of the tool according to claim 9, wherein the main control circuit board obtains and outputs the wear state of the tool according to the noise reduction signal, specifically:
collecting a noise reduction signal sample and a wear state sample of a corresponding cutter, and constructing the noise reduction signal sample and the wear state sample into a training set and a testing set;
establishing a neural network model through a machine learning algorithm, and performing iterative optimization on the neural network model through the training set and the testing set to obtain a tool detection model;
and the main control circuit board obtains and outputs the wear state of the cutter according to the input noise reduction signal through the cutter detection model.
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| CN202210913090.8A CN114965714A (en) | 2022-08-01 | 2022-08-01 | Splash-proof acoustic detection probe, splash-proof acoustic detection equipment and cutter wear detection method of splash-proof acoustic detection probe |
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| CN202210913090.8A CN114965714A (en) | 2022-08-01 | 2022-08-01 | Splash-proof acoustic detection probe, splash-proof acoustic detection equipment and cutter wear detection method of splash-proof acoustic detection probe |
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Application publication date: 20220830 |