CN208662802U - Gantry automatic submerged arc welding pre-heating control device - Google Patents
Gantry automatic submerged arc welding pre-heating control device Download PDFInfo
- Publication number
- CN208662802U CN208662802U CN201821464444.0U CN201821464444U CN208662802U CN 208662802 U CN208662802 U CN 208662802U CN 201821464444 U CN201821464444 U CN 201821464444U CN 208662802 U CN208662802 U CN 208662802U
- Authority
- CN
- China
- Prior art keywords
- resistance
- connection
- transport
- temperature
- placing 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
The utility model discloses gantry automatic submerged arc welding pre-heating control devices, including heater, controller and temperature monitoring module, temperature monitoring module includes temperature sampling circuit, signal amplification circuit and early warning output switching circuit, temperature sampling circuit includes the temperature sensor P1 for detecting weld groove preheating temperature, the input terminal of the output end connection signal amplifying circuit of temperature sampling circuit, the input terminal of the output end connection early warning output switching circuit of signal amplification circuit, the output end of early warning output switching circuit connects controller, interference of the extraneous noise signal to sampling electric signal can be effectively reduced in the utility model, greatly improve accuracy and stability of the signal in transmission process, with fine anti-interference ability, the control of the utility model simultaneously is quick and precisely, can have in time when reaching preheating temperature setting value Prompt is made to staff in effect ground, and closes heater, has good practical value and Development volue.
Description
Technical field
The utility model relates to gantry automatic submerged arc weldings to produce and process technical field, more particularly to gantry automatic submerged arc welding
Pre-heating control device.
Background technique
Gantry automatic submerged arc welding machine is mainly used for the submerged arc welding of H profile steel, and Automation of Welding degree is high, side easy to operate
Just, before to low-alloy or alloy pipe, pipeline, the welding of pressure vessel pipe, for the residual stress for reducing welding, improve weld seam
Microstructure and property should carry out the pre-heat treatment before weld groove weldering, when Hi-grade steel steel pipe produces in winter, generate welding in order to prevent
Defect, also will be to carrying out the pre-heat treatment before weld seam groove welding.Weld groove is carried out at preheating using heater in the prior art
Reason, wherein temperature sensor can sample heating temperature, and send controller as electronic signals for sampled result
In, after reaching setting preheating temperature, issuing control signal by controller makes heater stop heating, due to heating high temperature ring
Border and work frequency circuit make temperature sampling signal in the mistake for the controller being transmitted to there are interference of the noise signal to electric signal is very big
Occur unstable in journey, the control effect of controller is influenced very big.Existing gantry automatic submerged arc welding warm-up control dress simultaneously
It sets and lacks fast and accurately temperature pre-warning and remind the completion of preheating.
So the utility model provides the new scheme of one kind to solve the problems, such as this.
Utility model content
For above situation, the gantry that is designed to provide for the defect for overcoming the prior art, the utility model is buried automatically
Arc-welding pre-heating control device.
Its technical solution solved is: gantry automatic submerged arc welding pre-heating control device, including heater, controller and temperature
Monitoring module, the temperature monitoring module include temperature sampling circuit, signal amplification circuit and early warning output switching circuit, temperature
Sample circuit includes the temperature sensor P1 for detecting weld groove preheating temperature, and temperature sensor P1 is set to heater
Outer surface, the input terminal of the output end connection signal amplifying circuit of temperature sampling circuit, the output end connection of signal amplification circuit
The output end of the input terminal of early warning output switching circuit, early warning output switching circuit connects controller.
Preferably, temperature sensor P1 selects model PT100 in the temperature sampling circuit, and temperature sensor P1's draws
Foot 1 connects one end of inductance L1, one end of the other end connection capacitor C1 of inductance L1 and one end of resistance R1, R2, capacitor C1's
Other end ground connection, one end for connecting capacitor C2 anotherly of resistance R1, the other end connection transport and placing device AR1 of resistance R2, capacitor C2
Inverting input terminal；The pin 2 of temperature sensor P1 passes through resistance R3 connection capacitor C3, one end of resistance R4, zener diode
The cathode of DZ1 and the contact 1 of variable resistance RP1, capacitor C3, the other end of resistance R4 are in parallel with the anode of zener diode DZ1
The contact 2 of ground connection, variable resistance RP1 is also grounded by capacitor C4, and the contact 3 of variable resistance RP1 passes through resistance R5 connection amplifier
The non-inverting input terminal of device AR1, the feedback end connection of transport and placing device AR1 resistance R6, capacitor C5 in parallel, the positive supply of transport and placing device AR1
Hold connection+12V power supply, the negative power end ground connection of transport and placing device AR1.
Preferably, the signal amplification circuit includes transport and placing device AR2, and the non-inverting input terminal of transport and placing device AR2 passes through resistance R7
The output end of transport and placing device AR1 is connected, and is grounded by capacitor C6, the one of inverting input terminal connection resistance R8, R9 of transport and placing device AR2
End, the other end ground connection of resistance R9, the other end of the output end connection resistance R8 of transport and placing device AR2, and it is pre- by resistance R10 connection
Alert output switching circuit.
Preferably, the early warning output switching circuit includes relay K1, and the common connection of relay K1 can power transformation
The contact 1,3 of RP2 and the output end of signal amplification circuit are hindered, the contact 2 of variable resistance RP2 connects the grid of metal-oxide-semiconductor Q1, and leads to
Resistance R11 ground connection is crossed, by resistance R12 connection+12V power supply, the source electrode of metal-oxide-semiconductor Q1 connects relay K1 for the drain electrode of metal-oxide-semiconductor Q1
One end of coil, the other end ground connection of relay K1 coil, one end of normally opened contact connection resistance R13, R14 of relay K1,
The anode of the other end connection indicator light LED1 of resistance R13, the cathode ground connection of indicator light LED1, the other end connection of resistance R14
The anode of buzzer LS1, the cathode ground connection of buzzer LS1, the normally-closed contact of relay K1 pass through resistance R15 connection capacitor C7's
The temperature detection port of one end and controller, the other end ground connection of capacitor C7.
By above technical scheme, the utility model has the following beneficial effects:
1. the utility model temperature monitoring module circuit design is simply ingenious, extraneous noise signal can be effectively reduced to adopting
The interference of sample electric signal greatly improves accuracy and stability of the signal in transmission process, has fine anti-interference energy
Power, while the control of the utility model is quick and precisely, it can be when reaching preheating temperature setting value timely and effectively to work people
Member makes prompt, and closes heater, has good practical value and Development volue；
2. the preheating temperature value of temperature sensor P1 real-time detection weld groove, temperature sensor P1 in temperature sampling circuit
Output signal divide two-way to be sent into transport and placing device AR1 to amplify, transport and placing device AR1 believes two inputs with differential amplification principle
Number differential mode amplification is carried out, greatly improves the accuracy of signal amplification, reduce extraneous noise jamming, make to sample electric signal transmitting
With good stability, capacitor C5 plays the role of signal compensation, and the output signal of transport and placing device AR1 is avoided to interrupt；
3. it is big that the amplitude in the non-inverting input terminal input signal of transport and placing device AR1 can be changed in the resistance value for adjusting variable resistance RP1
It is small, to change the output effect of transport and placing device AR1；Resistance R11, variable resistance RP2 are with voltage divider principle to the defeated of transport and placing device AR2
Signal is divided out, the partial pressure ratio that the grid of the changeable metal-oxide-semiconductor Q1 of variable resistance RP2 obtains is adjusted, to change MOS
The conducting opportunity of pipe Q1.
Detailed description of the invention
Fig. 1 is the system module figure of the utility model.
Fig. 2 is the circuit diagram of temperature monitoring module in the utility model.
Specific embodiment
Aforementioned and other technology contents, feature and effect in relation to the utility model, in following cooperation with reference to figures 1 through attached
Fig. 2 can be clearly presented in the detailed description of embodiment.The structure content being previously mentioned in following embodiment is to say
Bright book attached drawing is reference.
Each exemplary embodiment of the utility model is described below with reference to accompanying drawings.
Gantry automatic submerged arc welding pre-heating control device, including heater, controller and temperature monitoring module, monitoring temperature mould
Block includes temperature sampling circuit, signal amplification circuit and early warning output switching circuit, and temperature sampling circuit includes for detecting weldering
The temperature sensor P1 of groove preheating temperature is stitched, temperature sensor P1 is set to the outer surface of heater, temperature sampling circuit
The input terminal of output end connection signal amplifying circuit, the input of the output end connection early warning output switching circuit of signal amplification circuit
The output end at end, early warning output switching circuit connects controller.
In order to improve the accuracy of temperature sampling, temperature sensor P1 selects model PT100, temperature in temperature sampling circuit
The pin 1 for spending sensor P1 connects one end of inductance L1, one end of the other end connection capacitor C1 of inductance L1 and resistance R1, R2
One end, the other end ground connection of capacitor C1, one end for connecting capacitor C2 anotherly of resistance R1, the other end of resistance R2, capacitor C2
The inverting input terminal of transport and placing device AR1 is connected, wherein inductance L1, capacitor C1 form LC filter to 1 end of temperature sensor P1 pin
Output signal be filtered, reduce extraneous noise jamming, capacitor C2 stablizes the filtered signal of LC.Temperature sensor
The pin 2 of P1 passes through resistance R3 connection capacitor C3, one end of resistance R4, the cathode of zener diode DZ1 and variable resistance RP1
The contact 2 of contact 1, the anode earth of capacitor C3, the other end of resistance R4 and zener diode DZ1, variable resistance RP1 is logical
It crosses capacitor C4 to be also grounded, the contact 3 of variable resistance RP1 passes through the non-inverting input terminal of resistance R5 connection transport and placing device AR1, wherein resistance
R2, capacitor C3 parallel connection play stabilization to the output signal at 2 end of temperature sensor P1 pin, and zener diode DZ1 is to signal
Pressure stabilizing is carried out, makes the output signal at 2 end of pin that there is good amplitude characteristic, non-inverting input terminal of the capacitor C4 to transport and placing device AR1
Signal is filtered, and reduces extraneous noise jamming, and the resistance value for adjusting variable resistance RP1 can be changed in the same mutually defeated of transport and placing device AR1
Enter to hold the amplitude size of input signal, to change the output effect of transport and placing device AR1.The feedback end of transport and placing device AR1 connects in parallel
Resistance R6, capacitor C5, capacitor C5 plays the role of signal compensation, avoids the output signal of transport and placing device AR1 from interrupting, transport and placing device
Positive power source terminal connection+12V the power supply of AR1, the negative power end ground connection of transport and placing device AR1.
Since the output signal of transport and placing device AR1 is more faint, in order to further enhance sampling electrical signal intensity, signal amplification
Transport and placing device AR2 is amplified using output signal of the in-phase proportion amplification principle to transport and placing device AR1 in circuit, transport and placing device AR2's
Non-inverting input terminal passes through the output end of resistance R7 connection transport and placing device AR1, and is grounded by capacitor C6, and resistance R7, capacitor C6 are formed
RC filter is first filtered the output signal of transport and placing device AR1, further decreases extraneous noise jamming.Transport and placing device AR2's
Inverting input terminal connects one end of resistance R8, R9, the other end ground connection of resistance R9, and the output end of transport and placing device AR2 connects resistance R8
The other end, and pass through resistance R10 connection early warning output switching circuit.
Early warning output switching circuit includes relay K1, the contact of the common connection variable resistance RP2 of relay K1
1,3 and signal amplification circuit output end, the contact 2 of variable resistance RP2 connects the grid of metal-oxide-semiconductor Q1, and is connect by resistance R11
Ground, the drain electrode of metal-oxide-semiconductor Q1 is by resistance R12 connection+12V power supply, and wherein resistance R11, variable resistance RP2 use voltage divider principle pair
The output signal of transport and placing device AR2 is divided, and the intrinsic standoff ratio that the grid of the changeable metal-oxide-semiconductor Q1 of variable resistance RP2 obtains is adjusted
Value, to change the conducting opportunity of metal-oxide-semiconductor Q1.One end of the source electrode connection relay K1 coil of metal-oxide-semiconductor Q1, relay K1 coil
Other end ground connection, one end of normally opened contact connection resistance R13, R14 of relay K1, the other end of resistance R13 connects instruction
The anode of lamp LED1, the cathode ground connection of indicator light LED1, the anode of the other end connection buzzer LS1 of resistance R14, buzzer
The cathode of LS1 is grounded, and the normally-closed contact of relay K1 passes through one end of resistance R15 connection capacitor C7 and the temperature detection of controller
Port, the other end ground connection of capacitor C7.
The utility model is when specifically used, the preheating temperature value of temperature sensor P1 real-time detection weld groove, temperature
The output signal of sensor P1, which is divided in two-way feeding transport and placing device AR1, to be amplified, the wherein output at 1 end of temperature sensor P1 pin
Inverting input terminal of the signal through being sent into transport and placing device AR1 after the stabilization of LC filtering and capacitor C2, the output of temperature sensor P1 pin 2
Signal is sent into after capacitor C3 in parallel, resistance R4, zener diode DZ1 pressure stabilizing and the filtering of capacitor C4 through variable resistance RP1
The non-inverting input terminal of transport and placing device AR1, transport and placing device AR1 carry out differential mode amplification, pole to two input signals with differential amplification principle
The earth improves the accuracy of signal amplification, reduces extraneous noise jamming, and sampling electric signal transmitting is made to have good stability,
Capacitor C5 plays the role of signal compensation, and the output signal of transport and placing device AR1 is avoided to interrupt.The output signal of transport and placing device AR1 is through RC
It is sent into transport and placing device AR2 after filtering to be further amplified, output signal the leading as control signal driving metal-oxide-semiconductor Q1 of transport and placing device AR2
It is logical, to control the switching of the contact relay K1.
When preheating temperature is not up to setting value, the output signal of transport and placing device AR2 is not up to after variable resistance RP2 partial pressure
The conducting voltage of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q1 cut-off, relay K1 coil losing electricity, normally-closed contact closure, thus monitoring temperature mould
Block continues to export high level signal to the temperature detection port of controller, and controller controls heater continuous heating；When preheating temperature
When degree reaches setting value, the output signal of transport and placing device AR2 reaches the conducting voltage of metal-oxide-semiconductor Q1 after variable resistance RP2 partial pressure,
Metal-oxide-semiconductor Q1 conducting, relay K1 coil obtain electric, normally opened contact closure, indicator light LED1 and buzzer LS1 while obtaining electric sending
Sound and light alarm signal is reminded staff to preheat and is completed, while relay K1 normally-closed contact disconnects, the temperature detection end of controller
Mouth becomes low level signal from high level signal, and controller controls heater and stops heating.
In conclusion the utility model temperature monitoring module circuit design is simply ingenious, extraneous clutter can be effectively reduced
Interference of the signal to sampling electric signal, greatly improves accuracy and stability of the signal in transmission process, has fine
Anti-interference ability, while the control of the utility model is quick and precisely, it can be when reaching preheating temperature setting value timely and effectively
Prompt is made to staff, and closes heater, there is good practical value and Development volue.
The above is to combine specific embodiment further detailed description of the utility model, and it cannot be said that originally
Utility model specific implementation is limited only to this；Belonging to the utility model and for those skilled in the technology concerned,
Under the premise of technical solutions of the utility model thinking, made expansion and the replacement of operating method, data should all be fallen in
Within scope of protection of the utility model.
Claims (4)
1. gantry automatic submerged arc welding pre-heating control device, including heater and controller, it is characterised in that: further include monitoring temperature
Module, the temperature monitoring module include temperature sampling circuit, signal amplification circuit and early warning output switching circuit, temperature sampling
Circuit includes the temperature sensor P1 for detecting weld groove preheating temperature, and temperature sensor P1 is set to the appearance of heater
The output end in face, the input terminal of the output end connection signal amplifying circuit of temperature sampling circuit, signal amplification circuit connects early warning
The output end of the input terminal of output switching circuit, early warning output switching circuit connects controller.
2. gantry automatic submerged arc welding pre-heating control device according to claim 1, it is characterised in that: the temperature sampling circuit
Middle temperature sensor P1 selects model PT100, and the pin 1 of temperature sensor P1 connects one end of inductance L1, and inductance L1's is another
One end connects one end of capacitor C1 and one end of resistance R1, R2, and the other end ground connection of capacitor C1, resistance R1's connects electricity anotherly
Hold C2 one end, resistance R2, capacitor C2 the other end connection transport and placing device AR1 inverting input terminal；The pin 2 of temperature sensor P1
By resistance R3 connection capacitor C3, one end of resistance R4, the cathode of zener diode DZ1 and variable resistance RP1 contact 1, electricity
Hold the anode earth of C3, the other end of resistance R4 and zener diode DZ1, the contact 2 of variable resistance RP1 passes through capacitor C4
Also it is grounded, the contact 3 of variable resistance RP1 passes through the non-inverting input terminal of resistance R5 connection transport and placing device AR1, the feedback of transport and placing device AR1
End connection resistance R6, capacitor C5 in parallel, the positive power source terminal connection+12V power supply of transport and placing device AR1, the negative power end of transport and placing device AR1
Ground connection.
3. gantry automatic submerged arc welding pre-heating control device according to claim 2, it is characterised in that: the signal amplification circuit
Including transport and placing device AR2, the non-inverting input terminal of transport and placing device AR2 passes through the output end of resistance R7 connection transport and placing device AR1, and passes through capacitor
C6 ground connection, one end of inverting input terminal connection resistance R8, R9 of transport and placing device AR2, the other end ground connection of resistance R9, transport and placing device AR2
Output end connection resistance R8 the other end, and pass through resistance R10 connection early warning output switching circuit.
4. gantry automatic submerged arc welding pre-heating control device according to claim 3, it is characterised in that: the early warning output switching
Circuit includes relay K1, the contact 1,3 of the common connection variable resistance RP2 of relay K1 and signal amplification circuit it is defeated
The contact 2 of outlet, variable resistance RP2 connects the grid of metal-oxide-semiconductor Q1, and is grounded by resistance R11, and the drain electrode of metal-oxide-semiconductor Q1 passes through
Resistance R12 connection+12V power supply, one end of the source electrode connection relay K1 coil of metal-oxide-semiconductor Q1, the other end of relay K1 coil
Ground connection, one end of normally opened contact connection resistance R13, R14 of relay K1, the other end connection indicator light LED1's of resistance R13
Anode, the cathode ground connection of indicator light LED1, the anode of the other end connection buzzer LS1 of resistance R14, the cathode of buzzer LS1
The normally-closed contact of ground connection, relay K1 passes through one end of resistance R15 connection capacitor C7 and the temperature detection port of controller, capacitor
The other end of C7 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464444.0U CN208662802U (en) | 2018-09-07 | 2018-09-07 | Gantry automatic submerged arc welding pre-heating control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821464444.0U CN208662802U (en) | 2018-09-07 | 2018-09-07 | Gantry automatic submerged arc welding pre-heating control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208662802U true CN208662802U (en) | 2019-03-29 |
Family
ID=65841931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821464444.0U Expired - Fee Related CN208662802U (en) | 2018-09-07 | 2018-09-07 | Gantry automatic submerged arc welding pre-heating control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208662802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113455907A (en) * | 2021-08-18 | 2021-10-01 | 深圳市维展电子显示科技有限公司 | Intelligent temperature control drinking water system |
-
2018
- 2018-09-07 CN CN201821464444.0U patent/CN208662802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113455907A (en) * | 2021-08-18 | 2021-10-01 | 深圳市维展电子显示科技有限公司 | Intelligent temperature control drinking water system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208044392U (en) | Distributed Real Time Data Acquisition system | |
| CN208662802U (en) | Gantry automatic submerged arc welding pre-heating control device | |
| CN109831180A (en) | A kind of water supply remote monitoring system signal compensation circuit | |
| CN109001566A (en) | A kind of intelligent warning board for transformer substations | |
| CN107948025B (en) | The Internet of Things signal condition indicating circuit of internet of things home appliance | |
| CN108152730A (en) | A kind of AUTOMOTIVE RELAY detection device | |
| CN203433352U (en) | Intelligent steel structure production control system | |
| CN208654220U (en) | A kind of source-drain warning device | |
| CN207851247U (en) | A kind of AUTOMOTIVE RELAY detection device | |
| CN208841416U (en) | A kind of industrial robot man-machine safety intelligence system | |
| CN200954566Y (en) | Quick returning-to-temperature electric iron with earthing immediatly monitoring function | |
| CN109030923A (en) | A kind of intelligent substation's prior-warning device | |
| CN105136372B (en) | The measurement apparatus and measuring method of a kind of dynamic electrode force of spot-welding welding tongs | |
| CN204160039U (en) | Straight seam high frequency welding pipe welding temperature monitoring alarm | |
| CN208325149U (en) | A kind of shared electric car protection alarm device | |
| CN105158574B (en) | Contravariant direct-current spot-welding dynamic electric resistance real-time measuring device and measuring method | |
| CN209157101U (en) | Vacuum pressure casting machine casting temperature control device | |
| CN208477348U (en) | A kind of electric-automation control system | |
| CN206464726U (en) | A kind of mash welder unit | |
| CN2868998Y (en) | On-line waterquality identifying and treating device for water-making machine | |
| CN205869696U (en) | Digit multiple function point welding machine | |
| CN219533106U (en) | Automatic dosing system of water quality monitoring station | |
| CN208547133U (en) | A kind of solar energy-conserving system | |
| CN205216775U (en) | Cyclic utilization formula transformer oil preparation system | |
| CN110171288A (en) | A kind of green novel energy source automobile intelligent cooling recirculation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20200907 |