CN108311829A - Protective gas control method, device and system in a kind of welding process - Google Patents
Protective gas control method, device and system in a kind of welding process Download PDFInfo
- Publication number
- CN108311829A CN108311829A CN201810320989.2A CN201810320989A CN108311829A CN 108311829 A CN108311829 A CN 108311829A CN 201810320989 A CN201810320989 A CN 201810320989A CN 108311829 A CN108311829 A CN 108311829A
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- Prior art keywords
- protective gas
- signal
- workpiece
- welding
- pressure
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- 230000001681 protective effect Effects 0.000 title claims abstract description 191
- 238000003466 welding Methods 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 79
- 239000007789 gas Substances 0.000 claims description 203
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 25
- 230000005693 optoelectronics Effects 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 230000004224 protection Effects 0.000 claims description 9
- 238000012512 characterization method Methods 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 6
- 230000007257 malfunction Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
- G05B19/054—Input/output
Abstract
Protective gas control method, device and system in a kind of welding process of the application offer, method include：Obtain the pressure signal of protective gas in protective gas pipeline；The workpiece signal for whether needing welding workpiece for characterizing welding post obtained；Judge whether the value of the pressure signal is located within preset range, if not, outputting alarm signal, if so, judging whether the workpiece signal is preset reference signal；Within the value of pressure signal is located at preset range and when the workpiece signal is preset reference signal, control protective gas fill system work, so as to ensure to provide enough protective gas for welding process.
Description
Technical field
The present invention relates to safety control technology fields, and in particular to is protected in a kind of welding process for improving welding quality
Protect gas control method, device and welding system.
Background technology
Since the metal of oxidation is very easy to fall off in the duct, if in tube side (fluorine side) if there is effect bulky grain
If can block compressor, cause compressor to burn out, so the cleanliness control of fluorine side is quite stringent, need strict guarantee
Cleaning in pipeline.Therefore air-conditioning equipment is usually passed through the protections such as nitrogen, carbon dioxide or inert gas when welding copper pipe
Gas can prevent metal from being aoxidized in the case where welding high temperature using protective gas auxiliary welding.Protection is filled when welding inside weldment
Gas is protected, and protective gas is flowing, therefore can extrude the oxygen in copper pipe, prevents copper pipe inner wall from heating
Oxidation generates oxide skin in the process.
It can be seen that welding quality be ensure air-conditioning quality the most important thing, and improve welding quality important method it
First, improving the filling effect of protective gas, protective gas control method used at present is some direct tubules directly by protecting
Protective gas is provided in gas storage tank, user, which can not judge whether the protective gas of filling disclosure satisfy that, in the welding process needs
It asks, if when welding, the gas in protective gas air accumulator has exhausted or air pressure is too low, can not provide enough protective gas
When amount, welding quality is will have a direct impact on, therefore, how to ensure that protective gas fill system can provide abundance in the welding process
Protective gas amount, become those skilled in the art's one of the technical problems that are urgent to solve.
Invention content
In view of this, protective gas control method and system in a kind of welding process of offer of the embodiment of the present invention, to ensure
Protective gas fill system can provide the amount of sufficient protective gas in the welding process.
To achieve the above object, the embodiment of the present invention provides the following technical solutions：
Protective gas control method in a kind of welding process, including：
Obtain the pressure signal of protective gas in protective gas pipeline；
The workpiece signal for whether needing welding workpiece for characterizing welding post obtained；
Judge whether the value of the pressure signal is located within preset range, if not, outputting alarm signal, if so,
Judge whether the workpiece signal is preset reference signal；
Within the value of pressure signal is located at preset range and when the workpiece signal is preset reference signal, control protection
Gas-filling system works.
Optionally, it in above-mentioned welding process in protective gas control method, obtains for characterizing whether welding post needs
The workpiece signal of welding workpiece, specifically includes：
The output signal for obtaining the workpiece detector for being located at protective gas filling station, is denoted as workpiece signal, when the work
When part signal is preset reference signal, shows that welding post needs welding workpiece, otherwise, show welding post without work to be welded
Part.
Optionally, in above-mentioned welding process in protective gas control method, gas is protected in the acquisition protective gas pipeline
After the pressure signal of body, it is additionally operable to：
Export the standby signal of the pressure state for characterizing the protective gas.
Optionally, in above-mentioned welding process in protective gas control method, when the value of pressure signal be located at preset range it
When the interior and described workpiece signal is preset reference signal, further include：
The solenoid valve that control is located at the outlet of protective gas output pipe is opened so that the protective gas output pipe outlet
In open state.
Optionally, in above-mentioned welding process in protective gas control method, gas is protected in the acquisition protective gas pipeline
The pressure signal of body, specially：
The pressure signal of nitrogen in protective gas pipeline is obtained, the nitrogen is as the protective gas in welding process.
Protective gas control device in a kind of welding process, including：
Memory and processor；
The memory works as described program for storing program code, the processor for calling said program code
Code is performed, for performing the following operations：
Obtain the pressure signal of protective gas in protective gas pipeline；
The workpiece signal for whether needing welding workpiece for characterizing welding post obtained；
Judge whether the value of the pressure signal is located within preset range, if not, outputting alarm signal, if so,
Judge whether the workpiece signal is preset reference signal；
Within the value of pressure signal is located at preset range and when the workpiece signal is preset reference signal, control protection
Gas-filling system works.
A kind of protective gas control system is applied in welding system, including：
The pressure sensor being set in protective gas output pipe, the pressure sensor is for detecting simultaneously output protection
The pressure signal of protective gas in gas export line；
Whether need the workpiece detector of welding workpiece for detecting welding post, the workpiece detector is for exporting table
Levy the workpiece signal that whether there is workpiece to be welded on welding post；
The controller being connected with the pressure sensor and workpiece detector；
The warning system being connected with the controller；
The protective gas output relay being connected with the controller；
The protective gas filling clamping jaw being connected with the nitrogen charging output relay；
The controller has：
It is connected with warning system, when the value for the pressure signal that pressure sensor exports is not within preset range,
To the first interface of warning system outputting alarm signal；
It is connected with protective gas output relay, when the value of the pressure signal is located within preset range and the workpiece
When the workpiece signal of detector output is preset reference signal, protective gas is controlled by the protective gas output relay and is filled
Enter the second interface of protective gas filling clamping jaw.
Optionally, in above-mentioned protective gas control system, the warning system includes：
Buzzer and malfunction indicator lamp.
Optionally, in above-mentioned protective gas control system, the workpiece detector is optoelectronic switch, when the optoelectronic switch
When being blocked by to-be-welded pieces, output size is the workpiece signal of preset reference signal.
Optionally, in above-mentioned protective gas control system, further include：
The protective gas positioning indicator being connected with the controller, the protective gas positioning indicator for show with
The pressure state for the protective gas that the output signal of the pressure sensor matches.
Optionally, in above-mentioned protective gas control system, the protective gas is nitrogen.
Optionally, in above-mentioned protective gas control system, further include：
It is set to the solenoid valve of protective gas output pipe outlet, the solenoid valve is for controlling protective gas output pipe
The open state of outlet.
Based on the above-mentioned technical proposal, said program provided in an embodiment of the present invention can voluntarily detect protective gas storage
The pressure signal of protective gas in tank shows protective gas when detecting that the pressure signal is located within preset range
Abundance, disclosure satisfy that demand, continues through the workpiece signal at this time and judges whether workpiece to be welded is in place, when the workpiece is believed
When number being preset reference signal, show that workpiece to be welded also in place, at this point, control protective gas fill system works, is
Welding process provides enough protective gas.
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
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow diagram of protective gas control method in a kind of welding process disclosed in the embodiment of the present application；
Fig. 2 illustrates for the flow of protective gas control method in a kind of welding process disclosed in another embodiment of the application
Figure；
Fig. 3 is the structural schematic diagram of protective gas control device in a kind of welding process disclosed in the embodiment of the present application；
Fig. 4 is a kind of structural schematic diagram of protective gas control system disclosed in the embodiment of the present application；
Fig. 5 be disclosed in the embodiment of the present application in protective gas control system pressure sensor, loading line, solenoid valve with
And the connection relationship diagram between filling clamping jaw.
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, 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.
Be directed to protective gas in the prior art filling quality be unable to get ensure and caused by poor welding quality ask
Topic, whether this application discloses protective gas control methods in a kind of welding process, up to standard with the parameter for detecting protective gas, when
When the parameter of protective gas is below standard, outputting alarm signal.
Specifically, referring to Fig. 1, protective gas control method in welding process disclosed in the embodiment of the present application may include：
Step S101：Obtain the pressure signal of protective gas in protective gas pipeline；
In technical solution provided by the embodiments of the present application, the pressure of protective gas can be detected by pressure sensor
Value can be in present protective gas pipeline or protective gas holding vessel disclosed in execute the embodiment of the present application before method
Middle setting pressure sensor, when the protective gas in storage tank is less, what the pressure sensor in tank or in pipeline detected
Pressure value will be relatively low, and when the protective gas in storage tank is more, what the pressure sensor in tank or in pipeline detected
Pressure value will be higher, and the size of the pressure signal detected by sensor can directly determine whether protective gas can have
Effect ensures welding quality.
Step S102：The workpiece signal for whether needing welding workpiece for characterizing welding post obtained；
When needing workpiece welding, welding workpiece can be positioned over to welding post, the application can by sensor or
Switching device directly judges whether welding post has welding workpiece, for example, can be directly in the welding post for putting
Setting one is set at the position of workpiece by compressing switch, when welding post places workpiece, the workpiece of placement will necessarily be pushed down described
By compressing switch so that switch conduction, as the workpiece signal, can work as switch conduction using by the status signal to compress switch at this time
When, by the value of the status signal to compress switch characterization is set to preset reference signal, at this point, can directly pass through described by pressing off
The status signal of pass directly judges to whether there is workpiece to be welded on welding post.
Except of course that except by compressing switch, optoelectronic switch can also be used, the optoelectronic switch is arranged in welding post
On, the region on welding post between optoelectronic switch is described to wait for when the region is placed with to-be-welded pieces for placing weldment
Two parts of optoelectronic switch will necessarily be isolated by weldment so that the output signal of optoelectronic switch changes, after variation
Signal value as preset reference signal, the output signal by detecting the optoelectronic switch can directly judge welding post
On whether have to-be-welded pieces.
When judging whether welding post needs welding workpiece using sensor, range sensor, infrared biography may be used
How sensor or pressure sensor etc. are specifically arranged the position of these sensors, can be according to actual demand sets itself, only
Want it that can be exported with specific signal when welding post needs welding workpiece.It is obtained at this time for characterizing weldering
It connects station and whether needs the workpiece signal of welding workpiece and be specially：Obtain the workpiece detector for being located at protective gas filling station
Output signal is denoted as workpiece signal, when the workpiece signal is preset reference signal, shows that welding post needs Welder
Otherwise part shows welding post without workpiece to be welded.
Step S103：Judge whether the value of the pressure signal is located within preset range, if not, executing step
S104, if so, executing step S105；
In this step, the preset range is the preset range of user, when the pressure value of protective gas exists
When the energy of the range, show that the amount of the protective gas in protective gas storage tank is sufficient, can ensure welding quality, when its no longer
When within preset range, shows that the protective gas amount in protective gas storage tank is very few, cannot be provided for welding process enough
Protective gas is needed to execute step S104 at this time, be exported for prompting the insufficient alarm signal of user's protective gas.
Step S104：Outputting alarm signal；
The purpose of this step is mainly used for prompting user's protective gas insufficient by the alarm signal or protective gas is owed
Pressure, specific alarm form can voluntarily be selected according to user demand, for example, the technical solution disclosed in the embodiment of the present application
In, can buzzer set light alarm by way of outputting alarm signal.Its detailed process is：
When needing alarm, the red lamp controlled on light indicating circuit is lighted, while controlling buzzer work.
Step S105：Judge whether the workpiece signal is preset reference signal, if not, continuing to execute this step, such as
Fruit is to execute step S106；
In this step, the concrete type of the preset reference signal also refers to welding post and needs welding workpiece
Depending on workpiece signal, concrete form and size are according to above workpiece signal, in this step, when the workpiece signal is not
When preset reference signal, show there is no workpiece to be welded on the welding post, can continue to carry out the workpiece signal at this time
Detection shows that there are welding workpiece on welding post when it is preset reference signal to detect the workpiece signal, at this point,
Execute step S106.
Step S106：When the value of pressure signal be located within preset range and the workpiece signal be preset reference signal
When, control protective gas fill system work so that protective gas fill system provides enough protective gas for welding process；
In this step, the value of pressure signal, which is located within preset range, shows that protective gas amount is sufficient, the workpiece letter
Number show that the workpiece to be welded on welding post is in place for preset reference signal, is that control is protected when meeting the two conditions
Protect gas-filling system work so that protective gas fill system output protection gas, to ensure welding quality.
By technical solution disclosed in the above embodiments of the present application as it can be seen that said program can voluntarily detect protective gas deposits
The pressure signal of protective gas in storage tank shows to protect gas when detecting that the pressure signal is located within preset range
Body is sufficient, disclosure satisfy that demand, continues through the workpiece signal at this time and judge whether workpiece to be welded is in place, when the workpiece
When signal is preset reference signal, show workpiece to be welded also in place, at this point, control protective gas fill system works,
Enough protective gas are provided for welding process.
In technical solution disclosed in the embodiment of the present application, understand in time in protective gas air accumulator in order to facilitate user
Gaseous state can also export the pressure state for characterizing protective gas in technical solution disclosed in the embodiment of the present application
Standby signal, the standby signal can also be different with the value of the pressure signal by the output of indicator light, detected, electricity
Indicator light it is different, user can directly judge the amount of the protective gas in protective gas storage tank by the indicator light lighted.
In technical solution disclosed in another embodiment of the application, in order to ensure the cleaning of protective gas pipeline gas outlet
Degree prevents impurity from entering protective gas pipeline, in said program, an electricity can also be arranged in the nozzle of the protective gas pipeline
Magnet valve, the solenoid valve are closed when power is off, and the nozzle of the pipeline of the protective gas is closed at this time, on the solenoid valve
Open state is in when electric, the nozzle of the protective gas is opened at this time.Therefore, in the above method, when the value position of pressure signal
Within preset range and when the workpiece signal is preset reference signal, also further include：
The solenoid valve that control is located at the outlet of protective gas output pipe is opened so that the protective gas output pipe outlet
In open state.
In technical solution disclosed in the embodiment of the present application, the type of the protective gas can be according to user demand voluntarily
Selection, for example, it can be nitrogen, carbon dioxide or inert gas, in technical solution disclosed in the embodiment of the present application, institute
It is preferably nitrogen to state protective gas, that is, the pressure signal of protective gas in protective gas pipeline, tool are obtained described in the above method
Body is：
The pressure signal of nitrogen in protective gas pipeline is obtained, the nitrogen is as the protective gas in welding process.
In summary each embodiment, disclosed herein as well is preferred protective gas control methods, referring to Fig. 2, the party
Method may include：
Step S201：The pressure signal of protective gas in protective gas pipeline is obtained, step S202 and S203 are executed；
Step S202：The workpiece signal for whether needing welding workpiece for characterizing welding post is obtained, step S204 is executed；
Step S203：The gas flow being used to characterize in protective gas storage tank that output matches with the pressure signal
Standby signal；
Step S204：Judge whether the value of the pressure signal is located within preset range, if not, executing step
S205, if so, executing step S206；
Step S205：Outputting alarm signal；
Step S206：Judge whether the workpiece signal is preset reference signal, if not, continuing to execute this step, such as
Fruit is to execute step S207 and S208；
Step S207：Control the work of protective gas fill system so that protective gas fill system provides for welding process
Enough protective gas；
Step S208：The solenoid valve that control is located at the outlet of protective gas output pipe is opened so that the protective gas is defeated
Go out tube outlet and is in open state.
It is directed to the above method, the embodiment of the present application also provides include guarantor corresponding with above-mentioned protective gas control method
Gas control equipment is protected, as shown in figure 3, being protective gas control device provided by the embodiments of the present application, which may include：
Memory 100 and processor 200；
The jamming equipment further includes communication interface 300 and communication bus 400, wherein memory 100, processor 200
And mutual communication is realized in the communication of communication interface 300 by communication bus 400.
The memory 100 is for storing program code；Said program code includes computer-managed instruction.
Memory 100 may include high-speed RAM memory, it is also possible to further include nonvolatile memory (non-
Volatile memory), a for example, at least magnetic disk storage.
The processor 200 can be a central processor CPU or specific integrated circuit ASIC
(Application Specific Integrated Circuit), or be arranged to implement the one of the embodiment of the present invention
A or multiple integrated circuits.The processor 200 is for calling said program code, when said program code is performed, uses
The operation below executing：
Obtain the pressure signal of protective gas in protective gas pipeline；
The workpiece signal for whether needing welding workpiece for characterizing welding post obtained；
Judge whether the value of the pressure signal is located within preset range, if not, outputting alarm signal, if so,
Judge whether the workpiece signal is preset reference signal；
Within the value of pressure signal is located at preset range and when the workpiece signal is preset reference signal, control protection
Gas-filling system works.
Optionally, the processor 200 obtains the workpiece for whether needing welding workpiece for characterizing welding post in execution
When signal, it is specifically used for：
The output signal for obtaining the workpiece detector for being located at protective gas filling station, is denoted as workpiece signal, when the work
When part signal is preset reference signal, shows that welding post needs welding workpiece, otherwise, show welding post without work to be welded
Part.
Optionally, the processor 200 is additionally operable to after the pressure signal of protective gas in obtaining protective gas pipeline
Execute following action：
Export the standby signal of the pressure state for characterizing the protective gas.
Optionally, when the value of pressure signal is located within preset range and the workpiece signal is preset reference signal,
The processor is additionally operable to execute following action：
The solenoid valve that control is located at the outlet of protective gas output pipe is opened so that the protective gas output pipe outlet
In open state.
Corresponding to the above method and device, referring to Fig. 4, disclosed herein as well is a kind of protective gas control systems, this is
System is applied in welding system, including：
The pressure sensor 001 being set in protective gas output pipe, the pressure sensor 001 for detect and it is defeated
Go out the pressure signal of the protective gas in protective gas output pipe；
Whether need the workpiece detector 002 of welding workpiece for detecting welding post, the workpiece detector 002 is used for
It whether there is the workpiece signal of workpiece to be welded on output characterization welding post；
The controller 003 being connected with the pressure sensor 001 and workpiece detector 002, discloses in the embodiment of the present application
Technical solution in, the type of the controller 003 can voluntarily be selected according to user demand, for example, it can be microprocessor
Device or PLC programming controller etc.；
The warning system 004 being connected with the controller 003；
The protective gas output relay 005 being connected with the controller 003；
The protective gas filling clamping jaw 006 being connected with the nitrogen charging output relay 005；
The controller 100 has：
Be connected with warning system 004, when the value for the pressure signal that pressure sensor 001 exports be not at preset range it
When interior, to the first interface of 004 outputting alarm signal of warning system；
Be connected with protective gas output relay 005, when the value of the pressure signal be located at it is within preset range and described
When the workpiece signal of workpiece detector output is preset reference signal, is controlled and protected by the protective gas output relay 005
Shield gas is filled with the second interface of protective gas filling clamping jaw 006.
Above system at work, the pressure of the protective gas in protective gas storage tank is detected by pressure sensor 001
Force signal is detected by workpiece detector 002 and whether there is workpiece to be welded on welding post, when the judgement pressure signal position
There are when workpiece to be welded within preset range and on welding post, is controlled and protected by protective gas output relay 005
Protective gas in gas export line is filled with protective gas filling clamping jaw 006, and enough protective gas are provided for welding process.
Corresponding with the above method, the warning system includes：
Buzzer and malfunction indicator lamp, the malfunction indicator lamp are not lighted when not receiving alarm signal, are alerted when receiving
It is displayed in red when signal, buzzer buzzing when receiving alarm signal is alarmed, and otherwise it is failure to actuate.
It is corresponding with the above method, the workpiece detector be specifically as follows by compress switch, optoelectronic switch, Distance-sensing
Device, infrared sensor or pressure sensor etc. are set to by compressing switch on welding post when workpiece detector is by compressing switch
At position for placing weldment, when welding post places workpiece, the workpiece of placement will necessarily be pushed down described by pressing off
It closes so that switch conduction.When the workpiece detector is optoelectronic switch, the optoelectronic switch is arranged on welding post,
Two parts of the optoelectronic switch are by placing the zone isolation of weldment on the welding post, when placing workpiece to be welded
When, the welding workpiece is placed on to the intermediate region of the optoelectronic switch, optoelectronic switch is isolated at this time, when the photoelectricity
When switch is blocked by to-be-welded pieces, output size is the workpiece signal of preset reference signal.
Corresponding with the above method, above system can also include：
The protective gas positioning indicator being connected with the controller, the protective gas positioning indicator for show with
The pressure state for the protective gas that the output signal of the pressure sensor matches.
In scheme disclosed in the embodiment of the present application, the gaseous state indicator can be visual indicator, when described
When pressure signal is located within preset range and is more than the first preset value, the visual indicator green light is lighted, when the pressure
When signal is located within preset range and is less than the first preset value, the visual indicator amber light is lighted.Wherein, described above
Malfunction indicator lamp in warning system can also refer to the indicator light in the visual indicator, that is, for example, light is referred to
Show that the red light in device controls the light as malfunction indicator lamp when the pressure signal is not within preset range
Malfunction indicator lamp (red light) in indicator is lighted.
Corresponding with the above method, in technical solution disclosed in the embodiment of the present application, the protective gas is nitrogen.
Corresponding with the above method, referring to Fig. 5, above system can also include：
It is set to the solenoid valve 007 of protective gas output pipe outlet, the solenoid valve is for controlling protective gas output
The open state of tube outlet.
For convenience of description, it is divided into various modules when description system above with function to describe respectively.Certainly, implementing this
The function of each module is realized can in the same or multiple software and or hardware when application.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for system or
For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method
The part of embodiment illustrates.System and system embodiment described above is only schematical, wherein the conduct
The unit that separating component illustrates may or may not be physically separated, the component shown as unit can be or
Person may not be physical unit, you can be located at a place, or may be distributed over multiple network units.It can root
According to actual need that some or all of module therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill
Personnel are without creative efforts, you can to understand and implement.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, depends on the specific application and design constraint of technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. protective gas control method in a kind of welding process, which is characterized in that including：
Obtain the pressure signal of protective gas in protective gas pipeline；
The workpiece signal for whether needing welding workpiece for characterizing welding post obtained；
Judge whether the value of the pressure signal is located within preset range, if not, outputting alarm signal, if so, judging
Whether the workpiece signal is preset reference signal；
Within the value of pressure signal is located at preset range and when the workpiece signal is preset reference signal, protective gas is controlled
Fill system works.
2. protective gas control method in welding process according to claim 1, which is characterized in that obtain for characterizing weldering
The workpiece signal whether station needs welding workpiece is connect, is specifically included：
The output signal for obtaining the workpiece detector for being located at protective gas filling station, is denoted as workpiece signal, when the workpiece is believed
Number be preset reference signal when, show that welding post needs welding workpiece, otherwise, show welding post without workpiece to be welded.
3. protective gas control method in welding process according to claim 1, which is characterized in that gas is protected in the acquisition
In body pipeline after the pressure signal of protective gas, it is additionally operable to：
Export the standby signal of the pressure state for characterizing the protective gas.
4. protective gas control method in welding process according to claim 1, which is characterized in that when the value of pressure signal
Within preset range and when the workpiece signal is preset reference signal, further include：
The solenoid valve that control is located at the outlet of protective gas output pipe is opened so that the protective gas output pipe outlet is in
Open state.
5. protective gas control device in a kind of welding process, which is characterized in that including：
Memory and processor；
The memory works as said program code for storing program code, the processor for calling said program code
It is performed, for performing the following operations：
Obtain the pressure signal of protective gas in protective gas pipeline；
The workpiece signal for whether needing welding workpiece for characterizing welding post obtained；
Judge whether the value of the pressure signal is located within preset range, if not, outputting alarm signal, if so, judging
Whether the workpiece signal is preset reference signal；
Within the value of pressure signal is located at preset range and when the workpiece signal is preset reference signal, protective gas is controlled
Fill system works.
6. a kind of protective gas control system is applied in welding system, which is characterized in that including：
The pressure sensor being set in protective gas output pipe, the pressure sensor is for detecting simultaneously output protection gas
The pressure signal of protective gas in output pipe；
Whether need the workpiece detector of welding workpiece for detecting welding post, the workpiece detector is for exporting characterization weldering
Connect the workpiece signal that whether there is workpiece to be welded on station；
The controller being connected with the pressure sensor and workpiece detector；
The warning system being connected with the controller；
The protective gas output relay being connected with the controller；
The protective gas filling clamping jaw being connected with the nitrogen charging output relay；
The controller has：
It is connected with warning system, when the value for the pressure signal that pressure sensor exports is not within preset range, to announcement
The first interface of alert system output alarm signal；
It is connected with protective gas output relay, when the value of the pressure signal is located within preset range and the workpiece sensing
When the workpiece signal of device output is preset reference signal, protective gas is controlled by the protective gas output relay and is filled with guarantor
Protect the second interface of gas filling clamping jaw.
7. protective gas control system according to claim 6, which is characterized in that the workpiece detector is opened for photoelectricity
It closes, when the optoelectronic switch is blocked by to-be-welded pieces, output size is the workpiece signal of preset reference signal.
8. protective gas control system according to claim 6, which is characterized in that further include：
The protective gas positioning indicator being connected with the controller, the protective gas positioning indicator for show with it is described
The pressure state for the protective gas that the output signal of pressure sensor matches.
9. protective gas control system according to claim 6, which is characterized in that the protective gas is nitrogen.
10. protective gas control system according to claim 6, which is characterized in that further include：
It is set to the solenoid valve of protective gas output pipe outlet, the solenoid valve is for controlling the outlet of protective gas output pipe
Open state.
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| CN201810320989.2A CN108311829A (en) | 2018-04-11 | 2018-04-11 | Protective gas control method, device and system in a kind of welding process |
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| CN201810320989.2A CN108311829A (en) | 2018-04-11 | 2018-04-11 | Protective gas control method, device and system in a kind of welding process |
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| CN109738422A (en) * | 2018-12-13 | 2019-05-10 | 中冶天工集团有限公司 | A method of checking pipeline argon gas inside filling degree |
| CN111266686A (en) * | 2018-12-04 | 2020-06-12 | 西安中科恒境环保科技有限公司 | Intelligent control method and system for nitrogen reflow oven |
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