CN110170884A - A kind of machine failure warning device - Google Patents

A kind of machine failure warning device Download PDF

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Publication number
CN110170884A
CN110170884A CN201910385303.2A CN201910385303A CN110170884A CN 110170884 A CN110170884 A CN 110170884A CN 201910385303 A CN201910385303 A CN 201910385303A CN 110170884 A CN110170884 A CN 110170884A
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CN
China
Prior art keywords
main body
close
wireless communication
end outer
communication device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910385303.2A
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Chinese (zh)
Inventor
夏志杰
张志胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu South High Intelligent Equipment Innovation Center Co Ltd
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Jiangsu South High Intelligent Equipment Innovation Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Jiangsu South High Intelligent Equipment Innovation Center Co Ltd filed Critical Jiangsu South High Intelligent Equipment Innovation Center Co Ltd
Priority to CN201910385303.2A priority Critical patent/CN110170884A/en
Publication of CN110170884A publication Critical patent/CN110170884A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)

Abstract

The invention discloses a kind of machine failure warning devices, including apparatus main body, two side external surfaces of described device main body are fixedly installed with fixed block, and the upper end outer surface rear and front end of fixed block offers fixing threaded hole, the upper end outer surface side of described device main body is provided with first close to the position of lower end and goes out sound window, and the upper end outer surface side of apparatus main body is provided with connection indicator light close to the position of upper end, the upper end outer surface other side of described device main body is provided with second close to the position of upper end and goes out sound window, and the upper end outer surface of apparatus main body is located at the side that second goes out sound window and is provided with keyboard.The present invention makes the present apparatus that can judge warning reason according to the flashing of warning light in use by being provided with a series of structure, maintenance personal is run and arranged convenient for contacting stopping lathe by wireless communication device and master control room after generation alarm, optimizes use process.

Description

A kind of machine failure warning device
Technical field
The present invention relates to warning device technical field, specially a kind of machine failure warning device.
Background technique
Lathe refers to that since volume is larger event once occurs in the process of running for a kind of machine-made machine-tool, lathe There are certain risk for barrier, therefore accident warning device need to be installed on lathe, and behaviour can be reminded when lathe breaks down Make personnel to stop the operation to lathe in time and repaired, but existing machine failure warning device structure is simple, and reports Warning reason can not be judged after police, can not be carried out troubleshooting immediately, can not be got in touch, prolong with master control room immediately after alarm Fault handling time has been grown, the service performance of device is reduced.
Summary of the invention
The purpose of the present invention is to provide a kind of machine failure warning devices, make this dress by being provided with a series of structure Warning reason can be judged according to the flashing of warning light in use by setting, and be convenient for passing through wireless communication device after alarm occurs Stopping lathe being contacted with master control room and runs and arrange maintenance personal, optimizes use process, to solve to propose in above-mentioned background technique The problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of machine failure warning device, including device master Body, two side external surfaces of described device main body are fixedly installed with fixed block, and the upper end outer surface rear and front end of fixed block is equal Fixing threaded hole is offered, the upper end outer surface side of described device main body is provided with first close to the position of lower end and goes out sound window, and The upper end outer surface side of apparatus main body is provided with connection indicator light, the upper end appearance of described device main body close to the position of upper end The face other side is provided with second close to the position of upper end and goes out sound window, and the upper end outer surface of apparatus main body is located at second and goes out sound window Side is provided with keyboard, and the upper end outer surface other side of described device main body offers cavity, and cavity close to the position of lower end Internal activity wireless communication device is installed, the leading exterior surface middle position of described device main body offers detection interface, and Through there is detection line, the position that the inside corresponding first of described device main body goes out sound window is movably installed with bee for the inside of detection interface Ring device, and the position that the inside corresponding second of apparatus main body goes out sound window is movably installed with loudspeaker, the inside of described device main body Middle position is movably installed with circuit board, and the inside of described device main body is movably installed with the first electric power storage close to the side of cavity The lower end outer surface middle position in pond, described device main body is movably installed with vibrating sensor.
By using above-mentioned technical proposal, warning reason can be judged according to the flashing of warning light, after generation alarm just Maintenance personal is run and arranged in contacting stopping lathe by wireless communication device and master control room, optimizes use process.
Preferably, the leading exterior surface of the wireless communication device is movably installed with voice transfer device close to the position of lower end, The leading exterior surface of the wireless communication device is provided with power supply indicator close to the side of upper end, and before the wireless communication device Hold outer surface that the other side of upper end is provided with signal lamp, the internal activity of the wireless communication device is equipped with the second electric power storage Pond, and the upper end outer surface side of wireless communication device is movably installed with antenna, the wireless communication device is close to the side of signal lamp Outer surface upper end position is movably installed with push-to-talk button.
By using above-mentioned technical proposal, when detecting that lathe breaks down, wireless communication device, wireless communication device are picked up On power supply indicator light explanation can normal use, then the antenna on wireless communication device is pulled out from the inside of wireless communication device Signal is received out, and signal lamp lights at this time, then press-to-talk button, reports machine failure situation, nothing against voice transfer device Voice transfer to master control room is enabled master control room to stop lathe operation immediately by line communicator, and maintenance personal is arranged to go to.
Preferably, the output end of second battery is electrically connected voice transfer device, power supply indicator, signal lamp, day The input terminal of line and push-to-talk button.
It is voice transfer device, power supply indicator, signal lamp, day by the second battery by using above-mentioned technical proposal Line and push-to-talk button provide power supply.
Preferably, the antenna is through the inside of wireless communication device.
By using above-mentioned technical proposal, antenna is extracted into acceptable signal from the inside of wireless communication device, when not in use Antenna is prevented to be damaged the inside that antenna withdraws wireless communication device.
Preferably, the back end outer surface side of described device main body is movably installed with the first warning light, and apparatus main body The back end outer surface other side is movably installed with the second warning light, and the output end of first battery is electrically connected the first warning light With the input terminal of the second warning light.
By using above-mentioned technical proposal, power supply is provided for the first warning light and the second warning light by the first battery.
Preferably, it is flexibly connected between first warning light and detection interface, second warning light and vibrating sensing It is flexibly connected between device.
By using above-mentioned technical proposal, detects the first warning light flashing when interface detects lathe voltage instability and issue police Report is reminded, and the flashing of the second alarm device sounds an alarm prompting when vibrating sensor experiences lathe vibration exception.
Preferably, through there is fixed screw, the quantity of the fixing threaded hole is four, and solid for the inside of the fixing threaded hole Determine screw hole to install in cruciform symmetry.
By using above-mentioned technical proposal, four fixed screws are through to the inside of fixing threaded hole and by apparatus main body in ten Word is symmetrically mounted on lathe, increases the stability of apparatus main body.
Preferably, first battery output end be electrically connected detection interface, connection indicator light, keyboard, circuit board, The input terminal of buzzer, loudspeaker and vibrating sensor.
By using above-mentioned technical proposal, by the first battery be detection interface, connection indicator light, keyboard, circuit board, Buzzer, loudspeaker and vibrating sensor provide power supply.
In conclusion the invention has the following advantages:
1, the upper end outer surface other side of apparatus main body offers cavity, the internal activity peace of cavity close to the position of lower end Equipped with wireless communication device, the leading exterior surface of wireless communication device is movably installed with voice transfer device close to the position of lower end, wirelessly The leading exterior surface of communicator is provided with power supply indicator close to the side of upper end, and the leading exterior surface of the wireless communication device leans on The other side of nearly upper end is provided with signal lamp, and the internal activity of wireless communication device is equipped with the second battery, wireless communication device Upper end outer surface side is movably installed with antenna, and wireless communication device is installed close to a side external surface upper end position activity of signal lamp There is push-to-talk button, when detecting that lathe breaks down, picks up wireless communication device, the power supply indicator on wireless communication device lights Illustrate can normal use, then by the antenna on wireless communication device from the inside of wireless communication device extract receive signal, believe at this time Signal lamp lights, then press-to-talk button, reports machine failure situation against voice transfer device, wireless communication device is by voice transfer To master control room, master control room is enabled to stop lathe operation immediately, and maintenance personal is arranged to go to;
2, the leading exterior surface middle position of apparatus main body offers detection interface, and the inside for detecting interface, which is run through, detection Line, the position that the inside of apparatus main body corresponding first goes out sound window are movably installed with buzzer, in the lower end outer surface of apparatus main body Between position be movably installed with vibrating sensor, the back end outer surface side of apparatus main body is movably installed with the first warning light, device The back end outer surface other side of main body is movably installed with the second warning light, and first is alert when detection interface detects lathe voltage instability Report lamp flashing buzzer sounds an alarm prompting, the second warning light flashing buzzer when vibrating sensor experiences lathe vibration exception Prompting is sounded an alarm, can determine whether out the failure cause of lathe by the flashing state of the first warning light of observation and the second warning light, Convenient for being repaired to lathe.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention;
Fig. 2 is schematic diagram of internal structure of the invention;
Fig. 3 is that wireless communication device of the invention combines view;
Fig. 4 combines view with vibrating sensor for the device of the invention main body.
In figure: 1, apparatus main body;2, fixed block;3, fixing threaded hole;4, first goes out sound window;5, indicator light is connected;6, second Sound window out;7, cavity;8, wireless communication device;9, keyboard;10, interface is detected;11, the first battery;12, circuit board;13, buzzing Device;14, loudspeaker;15, detection line;81, voice transfer device;82, power supply indicator;83, signal lamp;84, the second battery; 85, antenna;86, push-to-talk button;151, vibrating sensor;152, the first warning light;153, the second warning light.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " front end ", " rear end ", The orientation or positional relationship of the instructions such as " both ends ", " one end ", " other end " is to be based on the orientation or positional relationship shown in the drawings, only It is that for the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specifically Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " the Two " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set Be equipped with ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, may be a detachable connection or one Connect to body;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, it can also be indirect by intermediary It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition State the concrete meaning of term in the present invention.
Fig. 1-4 is please referred to, a kind of embodiment provided by the invention: a kind of machine failure warning device, including apparatus main body 1, fixed block 2 is fixedly mounted by two side external surfaces of apparatus main body 1, the upper end outer surface rear and front end of fixed block 2 is opened If fixing threaded hole 3, position setting first of the upper end outer surface side of apparatus main body 1 close to lower end goes out sound window 4, apparatus main body 1 Upper end outer surface side close to the position setting connection indicator light 5 of upper end, the upper end outer surface other side of apparatus main body 1 is close The position setting second of upper end goes out sound window 6, and the upper end outer surface of apparatus main body 1 is located at the side that second goes out sound window 6 and keyboard is arranged 9, the upper end outer surface other side of apparatus main body 1 opens up cavity 7 close to the position of lower end, and the internal activity installation of cavity 7 is wireless Communicator 8, the leading exterior surface middle position of apparatus main body 1 open up detection interface 10, and the inside of detection interface 10 is through detection Buzzer 13 is installed in line 15, the position activity that the inside corresponding first of apparatus main body 1 goes out sound window 4, and the inside of apparatus main body 1 is corresponding Loudspeaker 14, the bosom position activity mounting circuit boards 12 of apparatus main body 1, dress are installed in the second position activity for going out sound window 6 First battery 11, the lower end outer surface interposition of apparatus main body 1 are installed close to the side activity of cavity 7 in the inside for setting main body 1 Activity installation vibrating sensor 151 is set, fixed screw is through in fixing threaded hole 3, is pacified apparatus main body 1 using fixed block 2 It on lathe, and will test in the insertion detection interface 10 of line 15, apparatus main body 1 connect with lathe using detection line 15, is filled It sets vibrating sensor 151 after main body 1 is mounted on lathe to contact with lathe, when voltage instability occurs for lathe, apparatus main body 1 is logical It crosses detection line 15 and detects failure, and fault-signal is transferred to buzzer 13, buzzer 13, which sounds, at this time sounds an alarm prompting, Fault-signal is transferred to buzzer 13 when vibrating sensor 151 experiences lathe vibration frequency exception when machine tool component loosens, Buzzer 13, which sounds, at this time sounds an alarm prompting, then puts through master control room number by keyboard 9, will be former by wireless communication device 8 Barrier situation is pass on to master control room, and master control room stops the operation of lathe immediately, and maintenance personal is arranged to come to repair, and optimization used Journey.
Further, voice transfer device 81 is installed in position activity of the leading exterior surface of wireless communication device 8 close to lower end, wirelessly Power supply indicator 82 is arranged close to the side of upper end in the leading exterior surface of communicator 8, and the leading exterior surface of wireless communication device 8 is close The internal activity of the other side setting signal lamp 83 of upper end, wireless communication device 8 installs the second battery 84, wireless communication device 8 Antenna 85, a side external surface upper end position activity of the wireless communication device 8 close to signal lamp 83 are installed in the side activity of upper end outer surface Installation push-to-talk button 86 picks up wireless communication device 8, the power supply instruction on wireless communication device 8 when detecting that lathe breaks down Lamp 82 light explanation can normal use, then by the antenna 85 on wireless communication device 8 from the inside of wireless communication device 8 extract receive Signal, signal lamp 83 lights at this time, then press-to-talk button 86, reports machine failure situation, nothing against voice transfer device 81 Voice transfer to master control room is enabled master control room to stop lathe operation immediately by line communicator 8, and before arranging maintenance personal It is past.
Further, the output end of the second battery 84 is electrically connected voice transfer device 81, power supply indicator 82, signal lamp 83, the input terminal of antenna 85 and push-to-talk button 86 is voice transfer device 81, power supply indicator 82, letter by the second battery 84 Signal lamp 83, antenna 85 and push-to-talk button 86 provide power supply.
Further, antenna 85 extracts antenna 85 from the inside of wireless communication device 8 through the inside of wireless communication device 8 The inside that antenna 85 withdraws wireless communication device 8 is prevented antenna 85 to be damaged by acceptable signal when not in use.
Further, the first warning light 152, the rear end of apparatus main body 1 are installed in the back end outer surface side activity of apparatus main body 1 The second warning light 153 is installed in the activity of the outer surface other side, the output end of the first battery 11 be electrically connected the first warning light 152 with The input terminal of second warning light 153 is that the first warning light 152 and the second warning light 153 provide power supply by the first battery 11.
Further, it is flexibly connected between the first warning light 152 and detection interface 10, the second warning light 153 and vibrating sensing It is flexibly connected between device 151, the flashing of the first warning light 152, which sounds an alarm, when detection interface 10 detects lathe voltage instability mentions It wakes up, the flashing of the second warning light 153 sounds an alarm prompting when vibrating sensor 151 experiences lathe vibration exception.
Further, fixed screw is run through in the inside of fixing threaded hole 3, and the quantity of fixing threaded hole 3 is four, and fixing threaded hole 3 is in Cruciform symmetry installation, four fixed screws are through to the inside of fixing threaded hole 3 and apparatus main body 1 are mounted on machine in cruciform symmetry On bed, the stability of apparatus main body 1 is increased.
Further, the output end of the first battery 11 is electrically connected detection interface 10, connection indicator light 5, keyboard 9, circuit Plate 12, buzzer 13, the input terminal of loudspeaker 14 and vibrating sensor 151 are detected interface 10, are connected by the first battery 11 Indicator light 5, keyboard 9, circuit board 12, buzzer 13 are connect, loudspeaker 14 and vibrating sensor 151 provide power supply.
It should be noted that the present invention is a kind of machine failure warning device, fixed screw is through to fixation when use In screw hole 3, apparatus main body 1 is mounted on lathe using fixed block 2, and will test in the insertion detection interface 10 of line 15, is utilized Apparatus main body 1 is connect by detection line 15 with lathe, the vibrating sensing of model BMX-074S after apparatus main body 1 is mounted on lathe Device 151 is contacted with lathe, and the first battery 11 of model 6-QW-120D- (760) is that apparatus main body 1 provides power supply, works as lathe When voltage instability occurs, apparatus main body 1 detects failure by detection line 15, and fault-signal is transferred to model BJ- The buzzer 13 of 1IEK and the first warning light 152 of model LTE-1101J, the first warning light 152 flashes buzzer 13 at this time Prompting is sounded an alarm, passes fault-signal when vibrating sensor 151 experiences lathe vibration frequency exception when machine tool component loosens It is defeated by the second warning light 153 of buzzer 13 Yu model LTE-1101J, the buzzer 13 of the second warning light 153 flashing at this time is sent out Alarm and reminding out can determine whether out that the failure of lathe is former by the flashing state of the first warning light 152 of observation and the second warning light 153 Then cause puts through master control room number by keyboard 9, picks up wireless communication device 8, model 6-QW- convenient for repairing to lathe The second battery 84 of 120D- (760) is that wireless communication device 8 provides power supply, model SMBJ15CA-TP on wireless communication device 8 Power supply indicator 82 light explanation can normal use, then by the antenna 85 on wireless communication device 8 out of wireless communication device 8 Portion, which is extracted, receives signal, and the signal lamp 83 of model SMBJ15CA-TP lights at this time, then press-to-talk button 86, against type Number for BMX-074S voice transfer device 81 report machine failure situation, wireless communication device 8 by voice transfer to master control room so that Master control room can stop lathe operation immediately, and maintenance personal is arranged to go to, and effectively increase the functionality of its own, more in fact With.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.

Claims (8)

1. a kind of machine failure warning device, including apparatus main body (1), it is characterised in that: outside the two sides of described device main body (1) Surface is fixedly installed with fixed block (2), and the upper end outer surface rear and front end of fixed block (2) offers fixing threaded hole (3), The upper end outer surface side of described device main body (1) is provided with first close to the position of lower end and goes out sound window (4), and apparatus main body (1) upper end outer surface side is provided with close to the position of upper end and connects indicator light (5), outside the upper end of described device main body (1) The surface other side is provided with second close to the position of upper end and goes out sound window (6), and the upper end outer surface of apparatus main body (1) is located at second The side of sound window (6) is provided with keyboard (9) out, the position of the upper end outer surface other side of described device main body (1) close to lower end It offers cavity (7), and the internal activity of cavity (7) is equipped with wireless communication device (8), outside the front end of described device main body (1) The inside that surface middle position, which offers, to be detected interface (10), and detect interface (10), which is run through, detection line (15), described device The position that the inside of main body (1) corresponding first goes out sound window (4) is movably installed with buzzer (13), and the inside of apparatus main body (1) Corresponding second position for going out sound window (6) is movably installed with loudspeaker (14), the bosom position activity of described device main body (1) It is equipped with circuit board (12), the inside of described device main body (1) is movably installed with the first battery close to the side of cavity (7) (11), the lower end outer surface middle position of described device main body (1) is movably installed with vibrating sensor (151).
2. a kind of machine failure warning device according to claim 1, it is characterised in that: the wireless communication device (8) Leading exterior surface is movably installed with voice transfer device (81) close to the position of lower end, the front end appearance of the wireless communication device (8) Face is provided with power supply indicator (82) close to the side of upper end, and the leading exterior surface of the wireless communication device (8) is close to upper end The other side be provided with signal lamp (83), the internal activity of the wireless communication device (8) is equipped with the second battery (84), and nothing The upper end outer surface side of line communicator (8) is movably installed with antenna (85), and the wireless communication device (8) is close to signal lamp (83) A side external surface upper end position be movably installed with push-to-talk button (86).
3. a kind of machine failure warning device according to claim 2, it is characterised in that: second battery (84) Output end is electrically connected voice transfer device (81), power supply indicator (82), signal lamp (83), antenna (85) and push-to-talk button (86) Input terminal.
4. a kind of machine failure warning device according to claim 2, it is characterised in that: the antenna (85) is through nothing The inside of line communicator (8).
5. a kind of machine failure warning device according to claim 1, it is characterised in that: after described device main body (1) End outer surface side is movably installed with the first warning light (152), and the back end outer surface other side activity installation of apparatus main body (1) Have the second warning light (153), the output end of first battery (11) is electrically connected the first warning light (152) and the second alarm The input terminal of lamp (153).
6. a kind of machine failure warning device according to claim 5, it is characterised in that: first warning light (152) It is flexibly connected between detection interface (10), is flexibly connected between second warning light (153) and vibrating sensor (151).
7. a kind of machine failure warning device according to claim 1, it is characterised in that: the fixing threaded hole (3) it is interior Portion is through there is fixed screw, and the quantity of the fixing threaded hole (3) is four, and fixing threaded hole (3) is installed in cruciform symmetry.
8. a kind of machine failure warning device according to claim 1, it is characterised in that: first battery (11) Output end is electrically connected detection interface (10), connection indicator light (5), keyboard (9), circuit board (12), buzzer (13), loudspeaker (14) and the input terminal of vibrating sensor (151).
CN201910385303.2A 2019-05-09 2019-05-09 A kind of machine failure warning device Pending CN110170884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910385303.2A CN110170884A (en) 2019-05-09 2019-05-09 A kind of machine failure warning device

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Application Number Priority Date Filing Date Title
CN201910385303.2A CN110170884A (en) 2019-05-09 2019-05-09 A kind of machine failure warning device

Publications (1)

Publication Number Publication Date
CN110170884A true CN110170884A (en) 2019-08-27

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Application Number Title Priority Date Filing Date
CN201910385303.2A Pending CN110170884A (en) 2019-05-09 2019-05-09 A kind of machine failure warning device

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Publication number Priority date Publication date Assignee Title
JP2013025776A (en) * 2011-07-26 2013-02-04 Fanuc Ltd Numerical control device for machine tool equipped with sound conversion device
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CN206515686U (en) * 2017-02-18 2017-09-22 重庆电子工程职业学院 Industrial fault of numerical control machine tool intelligent diagnostics and prior-warning device based on vibration performance
CN108174134A (en) * 2018-01-05 2018-06-15 深圳市八方通达科技有限公司 A kind of mono- alert law enforcement video-with-audio recording instrument of novel 4G of high sensitivity
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Application publication date: 20190827