CN107170192A - A kind of large-scale vertical lathe melt pit warning system - Google Patents
A kind of large-scale vertical lathe melt pit warning system Download PDFInfo
- Publication number
- CN107170192A CN107170192A CN201710495055.8A CN201710495055A CN107170192A CN 107170192 A CN107170192 A CN 107170192A CN 201710495055 A CN201710495055 A CN 201710495055A CN 107170192 A CN107170192 A CN 107170192A
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- Prior art keywords
- melt pit
- inductive switch
- lathe
- warning system
- scale vertical
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- 230000001939 inductive effect Effects 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 7
- 241000238631 Hexapoda Species 0.000 abstract description 6
- 230000035987 intoxication Effects 0.000 abstract description 5
- 231100000566 intoxication Toxicity 0.000 abstract description 5
- 230000006698 induction Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010037423 Pulmonary oedema Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Automation & Control Theory (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention relates to a kind of large-scale vertical lathe melt pit warning system, including：Inductive switch, rotation alarm lamp, time-delay relay, PLC and NC numerical controls, inductive switch need not individually increase potential device using 24V operating voltages, easy for installation, and below human safety voltage；Two inductive switches are connected by the way of series connection, two inductive switch difference in height 30mm position is installed in series, it is to avoid insect of big body etc., which flies over, causes false alarm；By manual and the vertical car of NC numerical controls control two ways closing the operation of personnel, it can be prevented effectively from and cause mechanical wounding and intoxication accident to occur to operating personnel.
Description
Technical field
The invention belongs to large-scale vertical lathe technical field, and in particular to a kind of large-scale vertical lathe melt pit warning system.
Background technology
The Equipment Foundations depth of large-scale vertical lathe is placed with machine tool hydraulic station, reduction box in more than 2-5m, and melt pit
Deng critical component；Placement personnel are fallen and debris enters melt pit, after vertical car is installed, and steel plate all standing can be used above ground,
The entrance for only retaining a side 600mm facilitates personnel to enter melt pit maintenance maintenance；Then found car melt pit and just form one relatively
Machine tool drive part, rotating workbench of vertical lathe etc. are installed, pit is easily made under personnel during machine tool running in closed space, melt pit
Into mechanical wounding；Temperature is higher in relatively closed melt pit, and waste oil, waste emulsified mixture etc. are often flowed into melt pit, in temperature
In higher environment, toxic and harmful gas (such as hydrogen sulfide) is easily produced.It can go out after the hydrogen sulfide of suction high concentration in a short time
Now shed tears, it is ophthalmodynia, intra-ocular foreign body sense, cough, uncomfortable in chest, headache, dizzy weak, clouding of consciousness etc., severe one may occur in which encephaledema, lung
Oedema；It is dead that lightning class can occur for high concentration.Therefore very big hidden danger is caused to the personal safety for entering melt pit operating personnel.Cause
This must shut down power-off, open hydraulic station upper cover plate before personnel enter melt pit operation to company's confirmation request, and to melt pit
Bottom leads to compressed air more than one hour, could enter operation after detection control is up-to-standard；But often exist in production process
Enter the situation of operation, therefore the safety detecting alarm device entered for vertical car melt pit design and installation personnel in violation of rules and regulations.
Therefore, how to design a kind of can realize that accurate, automation large-scale vertical lathe melt pit warning system turns into this area
The problem of urgent need to resolve.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of use of the inductive switch of large-scale vertical lathe melt pit warning system
24V operating voltages need not individually increase potential device, easy for installation, and below human safety voltage；Using series connection
Mode connects two inductive switches, two inductive switch difference in height 30mm position is installed in series, it is to avoid the insect of big body
Cause false alarm etc. flying over；By personnel manually and NC numerical controls control two ways close stand car operation, can be prevented effectively to
Operating personnel causes mechanical wounding and intoxication accident to occur.
To solve the above problems, the technical solution adopted by the present invention is：
A kind of large-scale vertical lathe melt pit warning system, it is characterised in that including：Inductive switch, rotation alarm lamp, delay relay
Device, PLC and NC numerical controls, wherein,
The inductive switch is arranged on melt pit porch, and the inductive switch is connected with the rotation alarm lamp；
The rotation alarm lamp is two, described to be arranged on machine operation station installed in melt pit entrance and machine operation station
Rotation alarm lamp be connected with the time-delay relay；
The PLC is connected and NC numerical controls connection with the time-delay relay respectively；
The NC numerical controls are connected with large-scale vertical lathe, startup and stopping for controlling vertical car.
Further, the inductive switch is two, and described two inductive switches are connected by difference in height in the way of 30mm
Install.
Further, the operating voltage 24V of the inductive switch.
Further, the inductive switch is infrared sensing switch.
Further, described two rotation alarm lamps are arranged in parallel.
Further, the time-delay relay delay time is 15 seconds.
Meanwhile, the invention provides a kind of method of alarm, it is characterised in that comprises the following steps：
1) inductive switch detects someone and enters melt pit, and alarm signal is sent to rotation alarm lamp；
2) it is located at the rotation alarm lamp flicker at melt pit porch and lathe operation station；
3) alarm signal is delayed 15 seconds through time-delay relay；
4) when active station does not have staff, it is impossible to which during manual-lock lathe, alarm signal is passed to PLC by relay；
5) signal is passed to NC digital control systems by PLC, and control lathe is shut down.
The beneficial effects of the present invention are：
(1) inductive switch potential device need not individually be increased using 24V operating voltages, it is easy for installation, and in human body
Below safe voltage；
(2) two inductive switches, two inductive switch difference in height 30mm position series connection peace are connected by the way of series connection
Dress, it is to avoid insect of big body etc., which flies over, causes false alarm
(3) by manual and the vertical car of NC numerical controls control two ways closing the operation of personnel, it can be prevented effectively from and give operation people
Member causes mechanical wounding and intoxication accident to occur
Brief description of the drawings
Fig. 1 is inductive switch circuit diagram figure.
Fig. 2 is large-scale vertical lathe melt pit alarm system circuit figure of the present invention.
Wherein, 1, optical filter 2, sensing element 3, FET 4, alarm lamp 5, time-delay relay
Embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to specific embodiment to this
Invention is described in further detail.
According to an aspect of the present invention, the invention provides a kind of large-scale vertical lathe melt pit warning system, Fig. 2 is the present invention
Large-scale vertical lathe melt pit warning system human body infrared induction alarm circuit diagram, as shown in Fig. 2 including inductive switch, rotation alarm lamp,
Time-delay relay, PLC and NC numerical controls, wherein, the inductive switch is arranged on melt pit porch, the inductive switch and the rotation
Transit telegram warning lamp is connected；The rotation alarm lamp is two, installed in melt pit entrance and machine operation station, described to be arranged on lathe behaviour
The rotation alarm lamp for making to stand is connected with the time-delay relay；The PLC is connected and the NC with the time-delay relay respectively
Numerical control is connected；The NC numerical controls are connected with large-scale vertical lathe, startup and stopping for controlling vertical car.
Warning circuit a length of 1 minute during alarm, after alarm terminates, excludes all unlawful practices, can just enter once triggering
Row machine failure resets, and restarts startup lathe and is processed.
Thus, large-scale vertical lathe melt pit warning system of the invention places personnel in violation of rules and regulations into ground by a series of alarm measures
Operation is cheated, can be prevented effectively from and cause mechanical wounding and intoxication accident to occur to operating personnel.
According to a particular embodiment of the invention, if selecting inductive switch in higher sensitivity, insect of big body etc. flies
False alarm may also be caused by crossing, and two inductive switches are connected by the way of series connection, and only two inductive switches sense conjunction simultaneously
Lock could form path, can effectively reduce false alarm, it is preferred that the inductive switch is two, and described two sensings are opened
Pass is installed in series by difference in height in the way of 30mm.
According to a particular embodiment of the invention, 24V is the conventional control voltage of lathe, and in human safety voltage with
Under, inductive switch need not individually increase potential device using 24V operating voltages, easy for installation, it is preferred that the inductive switch
Selection work voltage 24V.
According to a particular embodiment of the invention, infrared sensing switch sensitivity is higher, coordinates two infrared sensing switch strings
Connection and 30mm difference in height can increase the accuracy of alarm, it is preferred that the inductive switch is infrared sensing switch.
According to a particular embodiment of the invention, described two alarm lamps are arranged in parallel, and alarm is once triggered, two alarm lamps
Start simultaneously, the alarm lamp at melt pit reminds incomer to return in time, the alarm lamp prompting lathe operator at active station is timely
Shutdown inspection.
According to a particular embodiment of the invention, alarm lamp and have no special requirements, there are multiple choices, it is preferred that the alarm
Lamp is rotation alarm lamp.
According to a particular embodiment of the invention, the time-delay relay delay time is 15 seconds, during this period, operator
Member closes large-scale vertical lathe, if operating personnel are not at the scene, and signal is passed to PLC by time-delay relay action after 15 seconds, and PLC will
Signal NC numerical controls, NC numerical controls control large-scale vertical lathe is out of service.
Meanwhile, the invention provides a kind of method alarmed using the warning system, comprise the following steps：
1) inductive switch detects someone and enters melt pit, and alarm signal is sent to rotation alarm lamp；
2) it is located at the rotation alarm lamp flicker at melt pit porch and lathe operation station；
3) alarm signal is delayed 15 seconds through time-delay relay；
4) when active station does not have staff, it is impossible to which during manual-lock lathe, alarm signal is passed to PLC by relay；
5) signal is passed to NC digital control systems by PLC, and control lathe is shut down.
Embodiment one
In the inlet port of vertical car melt pit, be installed in series two human body infrared inductive switches, two inductive switch differences in height
30mm position is installed, because the sensitivity of human body infrared inductive switch is higher, insect of big body etc., which flies over, to cause
False alarm, two human induction switch of connecting, only two inductive switches sense to close a floodgate simultaneously could form path, can effectively drop
Low false alarm occurs, and (human induction switch selection work voltage 24V, below human safety voltage, and 24V is that lathe is normal
With control voltage, it is not necessary to individually increase potential device, easy for installation：One rotation alarm lamp is installed in melt pit entrance, in machine
One rotation alarm lamp is installed, two alarm lamps are in parallel at bed active station, alarm is once trigger, and two alarm lamps start (simultaneously
Alarm lamp at hole reminds incomer to return in time, the timely shutdown inspection of alarm lamp prompting lathe operator at active station)；With
Two alarm lamps other circuit all the way in parallel, connects a time-delay relay, delay 15 seconds, time-delay relay are dynamic after alarm triggering
Make, 24V, to PLC input signals, after PLC processing, then is exported to lathe PLC by lead-out terminal and believed by PLC input terminal
Number, alarm is controlled, by PLC MC communication line, warning message the alarm of NC numerical controls digital control system is transferred to, lathe stops
Only everything.Warning circuit is once triggered, a length of 1 minute during alarm, after alarm terminates, excludes all unlawful practices, after
Machine failure reset could be carried out；Restart startup lathe to be processed.
The inductive switch of large-scale vertical lathe melt pit warning system of the invention need not be single using 24V operating voltages in summary
Solely increase potential device, easy for installation, and below human safety voltage；Two sensings are connected by the way of series connection to open
Close, two inductive switch difference in height 30mm position is installed in series, it is to avoid insect of big body etc., which flies over, causes false alarm；It is logical
Cross personnel manually and NC numerical controls control two ways closes the operation of vertical car, can be prevented effectively from and cause mechanical wounding to operating personnel
And intoxication accident occurs.
A kind of large-scale vertical lathe melt pit warning system provided by the present invention is described in detail above, it is used herein
Embodiment is set forth to the principle and embodiment of the application, and the explanation of above example is only intended to help and understands this
The method and its core concept of application；Simultaneously for those of ordinary skill in the art, according to the thought of the application, specific
It will change in embodiment and application, in summary, this specification content should not be construed as to the application's
Limitation.
Claims (7)
1. a kind of large-scale vertical lathe melt pit warning system, it is characterised in that including：Inductive switch, rotation alarm lamp, delay relay
Device, PLC and NC numerical controls, wherein,
The inductive switch is arranged on melt pit porch, and the inductive switch is connected with the rotation alarm lamp；
The rotation alarm lamp is two, installed in melt pit entrance and machine operation station, the rotation installed in machine operation station
Transit telegram warning lamp is connected with the time-delay relay；
The PLC is connected and NC numerical controls connection with the time-delay relay respectively；
The NC numerical controls are connected with large-scale vertical lathe, startup and stopping for controlling vertical car.
2. large-scale vertical lathe melt pit warning system according to claim 1, it is characterised in that the inductive switch is two,
Described two inductive switches are installed in series by difference in height in the way of 30mm.
3. large-scale vertical lathe melt pit warning system according to claim 1, it is characterised in that the work electricity of the inductive switch
Press 24V.
4. large-scale vertical lathe melt pit warning system according to claim 1, it is characterised in that the inductive switch is infrared sense
Inductive switch.
5. large-scale vertical lathe melt pit warning system according to claim 1, it is characterised in that described two rotation alarm lamps are simultaneously
Connection is set.
6. large-scale vertical lathe melt pit warning system according to claim 1, it is characterised in that during the time-delay relay delay
Between be 15 seconds.
7. a kind of method that system using described in any one of claim 1~6 is alarmed, it is characterised in that including following
Step：
1) inductive switch detects someone and enters melt pit, and alarm signal is sent to rotation alarm lamp；
2) it is located at the rotation alarm lamp flicker at melt pit porch and lathe operation station；
3) alarm signal is delayed 15 seconds through time-delay relay；
4) when active station does not have staff, it is impossible to which during manual-lock lathe, alarm signal is passed to PLC by relay；
5) signal is passed to NC digital control systems by PLC, and control lathe is shut down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495055.8A CN107170192A (en) | 2017-06-26 | 2017-06-26 | A kind of large-scale vertical lathe melt pit warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710495055.8A CN107170192A (en) | 2017-06-26 | 2017-06-26 | A kind of large-scale vertical lathe melt pit warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107170192A true CN107170192A (en) | 2017-09-15 |
Family
ID=59827917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710495055.8A Pending CN107170192A (en) | 2017-06-26 | 2017-06-26 | A kind of large-scale vertical lathe melt pit warning system |
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|---|---|
| CN (1) | CN107170192A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR0003089A (en) * | 2000-07-05 | 2002-02-05 | Silvio Godoy Nogueira | Optical sensor for yarn control in textile machines |
| CN2710063Y (en) * | 2004-07-27 | 2005-07-13 | 张文新 | Mutual-projection multi-beam infrared railings sounder |
| CN2823561Y (en) * | 2005-06-01 | 2006-10-04 | 王元龙 | Mine inclined roadway transporting and pedestrian safety monitoring system |
| TWM328628U (en) * | 2007-10-04 | 2008-03-11 | zhong-yi Guo | Improved structure of burglarproof detection device |
| CN201540622U (en) * | 2009-09-29 | 2010-08-04 | 长沙楚风文化传播有限公司 | Multi-beam laser correlation device |
| CN102069417A (en) * | 2010-09-29 | 2011-05-25 | 惠州市大亚湾天马电子机械有限公司 | Wire harness crossed safety grating detection device |
| CN103600097A (en) * | 2013-11-20 | 2014-02-26 | 天津大学 | Safety protection device and safety protection method for numerically controlled lathe |
| CN206877464U (en) * | 2017-06-26 | 2018-01-12 | 宁夏共享精密加工有限公司 | A kind of large-scale vertical lathe melt pit warning system |
-
2017
- 2017-06-26 CN CN201710495055.8A patent/CN107170192A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR0003089A (en) * | 2000-07-05 | 2002-02-05 | Silvio Godoy Nogueira | Optical sensor for yarn control in textile machines |
| CN2710063Y (en) * | 2004-07-27 | 2005-07-13 | 张文新 | Mutual-projection multi-beam infrared railings sounder |
| CN2823561Y (en) * | 2005-06-01 | 2006-10-04 | 王元龙 | Mine inclined roadway transporting and pedestrian safety monitoring system |
| TWM328628U (en) * | 2007-10-04 | 2008-03-11 | zhong-yi Guo | Improved structure of burglarproof detection device |
| CN201540622U (en) * | 2009-09-29 | 2010-08-04 | 长沙楚风文化传播有限公司 | Multi-beam laser correlation device |
| CN102069417A (en) * | 2010-09-29 | 2011-05-25 | 惠州市大亚湾天马电子机械有限公司 | Wire harness crossed safety grating detection device |
| CN103600097A (en) * | 2013-11-20 | 2014-02-26 | 天津大学 | Safety protection device and safety protection method for numerically controlled lathe |
| CN206877464U (en) * | 2017-06-26 | 2018-01-12 | 宁夏共享精密加工有限公司 | A kind of large-scale vertical lathe melt pit warning system |
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Application publication date: 20170915 |