CN106735345B - Anti- signal error shock road for hydraulic lathe - Google Patents
Anti- signal error shock road for hydraulic lathe Download PDFInfo
- Publication number
- CN106735345B CN106735345B CN201710099549.4A CN201710099549A CN106735345B CN 106735345 B CN106735345 B CN 106735345B CN 201710099549 A CN201710099549 A CN 201710099549A CN 106735345 B CN106735345 B CN 106735345B
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- Prior art keywords
- resistance
- voltage
- signal
- contact
- pin
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings
Abstract
The invention discloses a kind of anti-signal error shock roads for hydraulic lathe, hydraulic lathe includes bed piece and planker, bed piece is equipped with common wire, planker is equipped with the contact linked with signal wire, and contact is insulated with bed piece, and common wire and signal wire are separately connected voltage-contrast circuit and signal output apparatus, when planker moves to the end of bed piece, contact is connected with common wire, voltage-contrast circuit output low level, signal output apparatus output signal.The present invention allows contact to be not turned in the case of non-direct contact, solves the problems, such as that contact water drenching leads to malfunctioning machine in the prior art by increasing contrast potential circuit.
Description
Technical field
The present invention relates to hydraulic lathe equipment technical fields, particularly relate to a kind of anti-signal error shock for hydraulic lathe
Road.
Background technology
On feeding planker on hydraulic lathe, a conducting wire is connected to bed piece as common wire, and one is used as signal
Line is linked on the contact of planker and (insulate with lathe bed contact).When planker movement is at the end, contact encounters lathe bed and provides signal.
The circuit diagram of signal circuit is as shown in Figure 1, the contacts INPUT and 12vGND lathe bed common wires are when planker is not walked and is at the end
It disconnects, when walking to be at the end, lathe bed closure conducting is encountered in contact, and optocoupler EL22 energizations provide signal.Two conducting wires are in air
It can be just connected when being only in direct contact, however in water since water can be conductive.Even if two conducting wires do not directly contact
Also it can be connected.Lathe is typically due to the needs of cooling down workpiece, often to add coolant liquid, and coolant liquid is substantially aqueous.Water can be also
The contact conducting of lathe bed is not encountered directly.So planker does not run the signal for just having exported and having turned on that is at the end also, causes
Act failure.Existing hydraulic lathe is in order to avoid contact water drenching failure.Often use the method blocked of physics prevented water into
Enter contact.This guard method is of high cost, and effect is poor.It is due to corrosion etc. it is difficult to ensure that water-tight and after the time has been grown.
Once leak, contact false triggering can cause machine to act disorder, the workpiece that is damaged, machine, or even cause the people of operating personnel
Body injures.
Invention content
The present invention proposes a kind of anti-signal error shock road for hydraulic lathe, solves contact water drenching in the prior art and leads
Admittance causes the problem of malfunctioning machine.
The technical proposal of the invention is realized in this way：
A kind of anti-signal error shock road for hydraulic lathe, the hydraulic lathe include bed piece and planker, institute
It states bed piece and is equipped with common wire, the planker is equipped with the contact linked with signal wire, the contact and the machine tool
Body insulate, and the common wire and the signal wire are separately connected voltage-contrast circuit and signal output apparatus, when the planker is transported
When moving the end of the bed piece, the contact is connected with the common wire, the voltage-contrast circuit output low level,
The signal output apparatus output signal；The voltage-contrast circuit includes second resistance, 3rd resistor, the 4th resistance, the 5th
The both ends of resistance, the 6th resistance, the 7th resistance and voltage comparator, the second resistance are defeated with the voltage comparator respectively
Outlet is connected with the first leads ends, and the output end of the voltage comparator is connect with the signal output apparatus, second electricity
Resistance and the common end of the first pin of the voltage comparator are connected with 12V voltages, also with the 3rd resistor and the described 5th
The common end of resistance connects, and the other end of the 5th resistance is separately connected the second pin and the 6th of the voltage comparator
The other end of one end of resistance, the 6th resistance connects the common wire, and the 4th pin of the voltage comparator connects institute
State common wire, the other end of the 3rd resistor be separately connected the 4th resistance one end and the 7th resistance one
The other end at end, the 4th resistance connects the common wire, the other end and the voltage comparator of the 7th resistance
Third pin is equipped with common end, which connects the contact by switching.
Further, the signal output apparatus includes optocoupler, diode and first resistor, the first pin of the optocoupler
12V voltages are connected, the second pin of the optocoupler is connected with the diode and the first resistor, and the third of the optocoupler is drawn
Foot is grounded, and the 4th pin connects signal output line.
Further, the voltage at the second pin of the voltage comparator is adjusted to 2.6V by the 5th resistance.
The beneficial effects of the present invention are：By increasing contrast potential circuit, allow contact in the case of non-direct contact
It is not turned on, solves the problems, such as that contact water drenching leads to malfunctioning machine in the prior art.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the circuit diagram of signal output current in the prior art；
Fig. 2 is circuit diagram of the present invention for the anti-signal error shock road of hydraulic lathe.
Specific implementation mode
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 describes, 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, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
As shown in Fig. 2, the present invention proposes a kind of anti-signal error shock road for hydraulic lathe, hydraulic lathe includes machine
Bed lathe bed and planker, bed piece are equipped with common wire, and planker is equipped with the contact linked with signal wire, contact and machine tool
Body insulate, and common wire and signal wire are separately connected voltage-contrast circuit and signal output apparatus, when planker moves to bed piece
The end when, contact is connected with common wire, voltage-contrast circuit output low level, signal output apparatus output signal.
The present invention allows contact to be not turned in the case of non-direct contact, solves existing by increasing contrast potential circuit
There is the problem of contact water drenching leads to malfunctioning machine in technology.
Signal output apparatus includes optocoupler, diode and first resistor, and the first pin of optocoupler connects 12V voltages, optocoupler
Second pin connect with diode and first resistor, the third pin of optocoupler ground connection, the 4th pin connects signal output line.
Voltage-contrast circuit includes second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance
And voltage comparator, the both ends of second resistance are connect with the output end of voltage comparator and the first leads ends respectively, voltage compares
The output end of device is connect with signal output apparatus, and the common end of the first pin of second resistance and voltage comparator is connected with 12V
Voltage is also connect with the common end of 3rd resistor and the 5th resistance, and the other end of the 5th resistance is separately connected voltage comparator
The other end of one end of second pin and the 6th resistance, the 6th resistance connects common wire, and the 4th pin of voltage comparator connects
Common wire is connect, the other end of 3rd resistor is separately connected one end of the 4th resistance and one end of the 7th resistance, the 4th resistance
The other end connects common wire, and the other end of the 7th resistance and the third pin of voltage comparator are equipped with common end, and the common end is logical
Cross switch connection contact.As shown in Fig. 2, resistance R2 is pull-up resistor, ensure that the port 0 of voltage comparator is no in place in planker
Shi Douwei high level.The voltage that resistance R5 and resistance R6 adjusts the port-in1 of voltage comparator is 2.6V.Resistance R3 and resistance
The voltage of the one end R4 regulation resistance R7 is 10V, because this chip can only support the voltage of maximum 10V, increases R7 electricity
Pressure turns protection chip down.
Voltage at the second pin of voltage comparator is adjusted to 2.6V by the 5th resistance.
Port-the in1 of the voltage comparator voltages located are adjusted to 2.6v by resistance R5.When the contacts INPUT and lathe
When lathe bed is in direct contact, the resistance for being equivalent to switch SW is 0, then the voltage of the port+in1 of voltage comparator is 0.Compare voltage
The voltage at the places port-in1 of comparator is small.The so port 0 of voltage comparator and the conducting of the port 4 of voltage comparator.Optocoupler
Output signal is connected.
When not being in direct contact between the contacts INPUT and bed piece, the resistance of switch SW can become very big, even if water
Can be conductive, the resistance of switch SW also has 1M or more.So the voltage of the port+in1 of voltage comparator can be much larger than voltage ratio
Compared with the 2.6v of the port-in1 of device.So output end 0 of voltage comparator and the port 4 of voltage comparator is not turned on.Voltage ratio
Port 0 compared with device is high level always, and optocoupler does not work and do not send out signal.
It is so to effectively prevent, because of the problem of contact water drenching leads to malfunctioning machine.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (3)
1. a kind of anti-signal error shock road for hydraulic lathe, the hydraulic lathe includes bed piece and planker, described
Bed piece is equipped with common wire, and the planker is equipped with the contact linked with signal wire, the contact and the bed piece
Insulation, it is characterised in that：The common wire and the signal wire are separately connected voltage-contrast circuit and signal output apparatus, work as institute
When stating planker and moving to the end of the bed piece, the contact is connected with the common wire, and the voltage-contrast circuit is defeated
Go out low level, the signal output apparatus output signal；The voltage-contrast circuit includes second resistance, 3rd resistor, the 4th
Resistance, the 5th resistance, the 6th resistance, the 7th resistance and voltage comparator, the both ends of the second resistance respectively with the voltage
The output end of comparator and the connection of the first leads ends, the output end of the voltage comparator are connect with the signal output apparatus,
The common end of first pin of the second resistance and the voltage comparator is connected with 12V voltages, also with the 3rd resistor
It is connected with the common end of the 5th resistance, the other end of the 5th resistance is separately connected the second of the voltage comparator and draws
One end of foot and the 6th resistance, the other end connection common wire of the 6th resistance, the 4th of the voltage comparator the
Pin connects the common wire, and the other end of the 3rd resistor is separately connected one end and the described 7th of the 4th resistance
The other end of one end of resistance, the 4th resistance connects the common wire, the other end and the voltage of the 7th resistance
The third pin of comparator is equipped with common end, which connects the contact by switching.
2. the anti-signal error shock road according to claim 1 for hydraulic lathe, it is characterised in that：The signal output
Circuit includes optocoupler, diode and first resistor, and the first pin of the optocoupler connects 12V voltages, and the second of the optocoupler draws
Foot is connected with the diode and the first resistor, and the third pin ground connection of the optocoupler, the 4th pin connects signal output line.
3. the anti-signal error shock road according to claim 1 for hydraulic lathe, it is characterised in that：5th resistance
Voltage at the second pin of the voltage comparator is adjusted to 2.6V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710099549.4A CN106735345B (en) | 2017-02-23 | 2017-02-23 | Anti- signal error shock road for hydraulic lathe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710099549.4A CN106735345B (en) | 2017-02-23 | 2017-02-23 | Anti- signal error shock road for hydraulic lathe |
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| CN106735345A CN106735345A (en) | 2017-05-31 |
| CN106735345B true CN106735345B (en) | 2018-08-14 |
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| CN201710099549.4A Active CN106735345B (en) | 2017-02-23 | 2017-02-23 | Anti- signal error shock road for hydraulic lathe |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108306631A (en) * | 2018-04-04 | 2018-07-20 | 深圳鳍源科技有限公司 | A kind of switching circuit and underwater equipment |
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| DE3839048A1 (en) * | 1988-11-18 | 1990-05-31 | Friedrich Lauerer | Protection circuit for protectively insulated apparatuses |
| CN2781623Y (en) * | 2005-04-19 | 2006-05-17 | 廖元彬 | Water-proof mobile phone |
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| CN201252394Y (en) * | 2008-09-05 | 2009-06-03 | 刘杰 | Temperature protective circuit |
| CN203399045U (en) * | 2013-05-28 | 2014-01-15 | 扬州大学 | Chopper-control speed regulation and energy conservation device for asynchronous motor |
| CN203645640U (en) * | 2013-07-09 | 2014-06-11 | 中煤张家口煤矿机械有限责任公司 | Induction type contactless switch |
| CN204114295U (en) * | 2014-07-08 | 2015-01-21 | 苏毅强 | The PLC of Controlling solenoid valve or the input circlult of control system |
| CN205265658U (en) * | 2015-12-09 | 2016-05-25 | 广西柳工机械股份有限公司 | Switching signal input circuit |
| CN205438017U (en) * | 2016-04-06 | 2016-08-10 | 吉林大学 | Piezoelectricity self -induction formula numerical control lathe knife rest reliability test system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5362996B2 (en) * | 2006-07-06 | 2013-12-11 | パナソニック株式会社 | Protective device and its electric quantity detection method |
| CN102904211B (en) * | 2012-10-26 | 2016-02-03 | 小米科技有限责任公司 | Apparatus protective device and a kind of safety circuit |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3839048A1 (en) * | 1988-11-18 | 1990-05-31 | Friedrich Lauerer | Protection circuit for protectively insulated apparatuses |
| CN2781623Y (en) * | 2005-04-19 | 2006-05-17 | 廖元彬 | Water-proof mobile phone |
| CN101106264A (en) * | 2006-07-14 | 2008-01-16 | 鸿富锦精密工业（深圳）有限公司 | Waterproof automatic protection device of electronic device |
| CN201051660Y (en) * | 2007-06-11 | 2008-04-23 | 熊猫电子集团有限公司 | Battery short circuit prevention structure for hand-held device |
| CN201252394Y (en) * | 2008-09-05 | 2009-06-03 | 刘杰 | Temperature protective circuit |
| CN203399045U (en) * | 2013-05-28 | 2014-01-15 | 扬州大学 | Chopper-control speed regulation and energy conservation device for asynchronous motor |
| CN203645640U (en) * | 2013-07-09 | 2014-06-11 | 中煤张家口煤矿机械有限责任公司 | Induction type contactless switch |
| CN204114295U (en) * | 2014-07-08 | 2015-01-21 | 苏毅强 | The PLC of Controlling solenoid valve or the input circlult of control system |
| CN205265658U (en) * | 2015-12-09 | 2016-05-25 | 广西柳工机械股份有限公司 | Switching signal input circuit |
| CN205438017U (en) * | 2016-04-06 | 2016-08-10 | 吉林大学 | Piezoelectricity self -induction formula numerical control lathe knife rest reliability test system |
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| CN106735345A (en) | 2017-05-31 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20181009 Address after: 528400 Ren long road, Yongyi village, Dongfeng Town, Zhongshan, Guangdong (two of the first floor of Zhang Zhaojiong's workshop) Patentee after: Zhongshan jermex Machinery Manufacturing Co., Ltd. Address before: 528425 Jen Mae Shi automation equipment factory, Ren long road, Dongfeng Town, Zhongshan, Guangdong Patentee before: Zhang Zhaojiong |
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| TR01 | Transfer of patent right |