CN215469137U - Welding control system and welding device - Google Patents
Welding control system and welding device Download PDFInfo
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- CN215469137U CN215469137U CN202120392325.4U CN202120392325U CN215469137U CN 215469137 U CN215469137 U CN 215469137U CN 202120392325 U CN202120392325 U CN 202120392325U CN 215469137 U CN215469137 U CN 215469137U
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Abstract
A welding control system and a welding device comprise a first power supply; the first electromagnetic valve controls the conveying of combustible gas and is connected with a first power supply in series through a limit switch; the second electromagnetic valve controls the delivery of combustion-supporting gas and is connected with the first electromagnetic valve in parallel; the third electromagnetic valve controls the conveying of the protective gas and is connected with the first electromagnetic valve and the second electromagnetic valve in parallel; the first time delay relay is connected with the second electromagnetic valve in series; the second time delay relay is connected with the third electromagnetic valve in series; the limit switch is opened, the third electromagnetic valve is opened to convey protective gas, the first electromagnetic valve is opened to convey combustible gas, the first delay relay controls the second electromagnetic valve to be opened to convey combustion-supporting gas after delaying for a first preset time, when the limit switch is closed, the first electromagnetic valve and the second electromagnetic valve are closed simultaneously, and the second delay relay controls the third electromagnetic valve to be closed after delaying for a second preset time. The welding control system and the welding device effectively save gas and improve safety.
Description
Technical Field
The application relates to the technical field of welding, in particular to a welding control system and a welding device.
Background
At present, welding operation is required in a plurality of production fields (such as manufacturing processes of air conditioners, automobiles and the like), and as the welding needs to connect combustible gas and combustion-supporting gas, great potential safety hazard and gas waste exist in the operation process. When the welding is interrupted for a short time, the combustible gas and the combustion-supporting gas source connected with the welding gun need to be respectively closed if the welding gun is closed, and when the welding is interrupted frequently, the operation such as the gas source is closed every time, so that the operation is troublesome, the working process is influenced, the operator is not normally closed but is directly placed on the ground or other places, the waste of gas is caused, and the potential safety hazard is greatly increased.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a welding control system and a welding device to solve the above problems.
An embodiment of the present application provides a welding control system, comprising: a first power supply; the first electromagnetic valve is used for controlling the delivery of combustible gas and is connected with the first power supply in series through a limit switch; the second electromagnetic valve is used for controlling the delivery of combustion-supporting gas and is connected with the first electromagnetic valve in parallel; the third electromagnetic valve is used for controlling the transmission of protective gas and is connected with the first electromagnetic valve and the second electromagnetic valve in parallel; the first time delay relay is connected with the second electromagnetic valve in series; the second time delay relay is connected with the third electromagnetic valve in series; when the limit switch is closed, the first electromagnetic valve and the second electromagnetic valve are closed simultaneously, and the second delay relay controls the third electromagnetic valve to be closed after delaying for a second preset time.
Further, in some embodiments of the present application, the welding control system further includes a first proximity switch, the first solenoid valve is connected in series with the limit switch via the first proximity switch to the first power supply, the second solenoid valve is connected in parallel to the first solenoid valve, the third solenoid valve is connected in parallel to a circuit formed by the first solenoid valve and the first proximity switch, and the first proximity switch is opened when being close to the corresponding sensing element and is closed when being far away from the sensing element.
Further, in some embodiments of this application, the welding control system still includes first contactor, the first normally open contact of first contactor with first proximity switch connects in parallel again with the first coil of first contactor is established ties, works as when first proximity switch opens, first normally open contact closure makes first coil has two circular telegram routes, works as when first proximity switch closes, first coil still can keep the circular telegram state through its first normally open contact.
Further, in some embodiments of the present application, the welding control system further comprises a first igniter and a second proximity switch, the first igniter is connected in parallel to a circuit formed by the first solenoid valve, the first proximity switch and the limit switch, the first igniter is used for igniting a combustible gas, and the second proximity switch and the first proximity switch share the same inductor.
Further, in some embodiments of the present application, the welding control system further comprises a second igniter, a second power source, and a second contactor, the second igniter being connected in series with the second power source, a second coil of the second contactor being connected in series between the second proximity switch and the first igniter, a second normally open contact of the second contactor being connected in series with the second igniter, the second igniter and the first igniter being turned on or off simultaneously under the control of the second proximity switch.
Further, in some embodiments of the present application, the second power supply voltage is 1.5V.
Further, in some embodiments of the present application, the first preset time ranges from 1s to 2 s.
Further, in some embodiments of the present application, the second preset time is in a range of 1min or more.
The embodiment of the application provides a welding set, uses above-mentioned welding control system, welding set still includes welder, welding stage and couple, first solenoid valve the second solenoid valve reaches the gas supply line of third solenoid valve all communicates in welder, couple swing joint in welding stage and transmission are connected limit switch works as welder place in when the couple is last, the couple removes under the action of gravity, triggers limit switch closes, works as welder follows when taking out in the couple, the couple resets, triggers limit switch opens.
Further, in some embodiments of the present application, the welding control system includes a first proximity switch that is turned on when the first proximity switch is close to a corresponding sensing member and turned off when the first proximity switch is far from the sensing member, and the sensing member is connected to the welding gun.
Among the above-mentioned welding control system and welding set, through limit switch control combustible gas, combustion-supporting gas and protective gas's transport, be convenient for open or close at the welding in-process, avoid taking place operating personnel because the trouble phenomenon that does not close gas transportation of operation, and then practice thrift gas. The second electromagnetic valve is controlled by the first delay relay to be opened after delaying for first preset time so as to convey combustion-supporting gas, and safety during ignition is improved. And the second time delay relay controls the third electromagnetic valve to be closed after time delay for second preset time, so that the safety after flameout is improved.
Drawings
Fig. 1 is a schematic circuit diagram of a welding control system according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a welding device according to an embodiment of the present application.
Description of the main elements
First time delay relay 30
Second time delay relay 31
First proximity switch 50
First normally open contact 61
Second proximity switch 71
Second normally open contact 84
Welding table 91
Hook 92
The following detailed description will further illustrate the present application in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
An embodiment of the present application provides a welding control system, comprising: a first power supply; the first electromagnetic valve is used for controlling the conveying of combustible gas and is connected with a first power supply in series through a limit switch; the second electromagnetic valve is used for controlling the delivery of combustion-supporting gas and is connected with the first electromagnetic valve in parallel; the third electromagnetic valve is used for controlling the transmission of the protective gas and is connected with the first electromagnetic valve and the second electromagnetic valve in parallel; the first time delay relay is connected with the second electromagnetic valve in series; the second time delay relay is connected with the third electromagnetic valve in series; when the limit switch is closed, the first electromagnetic valve and the second electromagnetic valve are closed simultaneously, and the second delay relay controls the third electromagnetic valve to delay for second preset time and then to be closed.
The embodiment of the application also provides a welding set, use above-mentioned welding control system, welding set still includes welder, welding table and couple, the gas supply line of first solenoid valve, second solenoid valve and third solenoid valve all communicates in welder, couple swing joint is connected limit switch in welding table and transmission, when welder places on the couple, the couple removes under the action of gravity, trigger limit switch and close, when welder takes out from the couple, the couple resets, trigger limit switch and open.
Among the above-mentioned welding control system and welding set, through limit switch control combustible gas, combustion-supporting gas and protective gas's transport, be convenient for open or close at the welding in-process, avoid taking place operating personnel because the trouble phenomenon that does not close gas transportation of operation, and then practice thrift gas. The second electromagnetic valve is controlled by the first delay relay to be opened after delaying for first preset time so as to convey combustion-supporting gas, and safety during ignition is improved. And the second time delay relay controls the third electromagnetic valve to be closed after time delay for second preset time, so that the safety after flameout is improved.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic circuit diagram of a welding control system according to an embodiment of the present disclosure. The welding control system 100 of the present embodiment is used to control gas delivery during welding. The gas comprises combustible gas, combustion-supporting gas and protective gas, wherein the combustible gas refers to gas capable of being ignited, the combustion-supporting gas refers to gas capable of generating combustion reaction with the combustible gas, and the protective gas refers to inert gas and can isolate the combustible gas and the combustion-supporting gas to prevent adverse effects such as oxidation on welding positions. In some embodiments, the combustible gas is propane, the combustion gas is oxygen, and the shielding gas is nitrogen.
The welding control system 100 includes a first power supply 10, a first solenoid valve 20, a second solenoid valve 21, a third solenoid valve 22, a first delay relay 30, and a second delay relay 31. The first power source 10 is used to provide power to the welding control system 100. The first solenoid valve 20 is used for controlling the delivery of combustible gas, and the first solenoid valve 20 is connected in series with the first power supply 10 through a limit switch 40. The second electromagnetic valve 21 is used for controlling the delivery of the combustion-supporting gas, and the second electromagnetic valve 21 is connected with the first electromagnetic valve 20 in parallel. The third solenoid valve 22 is used for controlling the delivery of the shielding gas, and the third solenoid valve 22 is connected in parallel with the first solenoid valve 20 and the second solenoid valve 21. The first time delay relay 30 is connected in series with the second solenoid valve 21. The second time delay relay 31 is connected in series with the third electromagnetic valve 22.
In some embodiments, the voltage of the first power supply 10 is 24V and the current is 2A.
In the use process of the welding control system 100, the limit switch 40 is opened to conduct the circuit, the third electromagnetic valve 22 is opened to convey the shielding gas, the first electromagnetic valve 20 is opened to convey the combustible gas, and the first delay relay 30 controls the second electromagnetic valve 21 to be opened to convey the combustion-supporting gas after delaying for the first preset time. When the limit switch 40 is turned off, the circuit is turned off, the first electromagnetic valve 20 and the second electromagnetic valve 21 are simultaneously turned off, and the second delay relay 31 controls the third electromagnetic valve 22 to be turned off after delaying for a second preset time.
The first predetermined time ranges from 1s to 2s, and in some embodiments, the first predetermined time is one of 1s, 1.1s, 1.2s, 1.3 s, 1.4s, 1.5s, 1.6s, 1.7s, 1.8s, 1.9s, 2s, and the like.
The second preset time range is more than 1 min. In some embodiments, the second predetermined time is one of 1min, 1.5min, 2min, 3min, 4min, 5min, 6min, 7min, 8min, 9min, 10min, and the like.
In the welding control system 100, the limit switch 40 is used for controlling the conveying of the combustible gas, the combustion-supporting gas and the protective gas, so that the welding control system is convenient to open or close in the welding process, the phenomenon that the conveying of the gas is not closed due to troublesome operation of an operator is avoided, and further the gas is saved. When the limit switch 40 is turned on, the second electromagnetic valve 21 is controlled by the first delay relay 30 to be turned on after delaying for a first preset time so as to convey combustion-supporting gas, and therefore safety during ignition is improved. When the limit switch 40 is turned off, the third electromagnetic valve 22 is controlled by the second delay relay 31 to be turned off after delaying for a second preset time, so that the safety after flameout is improved.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.
With continued reference to fig. 1, the welding control system 100 further includes a first proximity switch 50. The first electromagnetic valve 20 is connected with the limit switch 40 in series through the first proximity switch 50 to form the first power supply 10, the second electromagnetic valve 21 is connected with the first electromagnetic valve 20 in parallel, the third electromagnetic valve 22 is connected with a circuit formed by the first electromagnetic valve 20 and the first proximity switch 50 in parallel, the first proximity switch 50 is opened when being close to a corresponding sensing piece (not shown), and is closed when being far away from the sensing piece.
In some embodiments, the sensing member is connected to the welding torch, the welding control system 100 is disposed in the welding station, and during use, the limit switch 40 is opened to conduct the circuit, and the third solenoid valve 22 is opened to deliver shielding gas. When the welding gun approaches to a welding table, namely the first proximity switch 50, the first proximity switch 50 is opened, the first electromagnetic valve 20 simultaneously conveys combustible gas, and the first delay relay 30 controls the second electromagnetic valve 21 to be opened after delaying for a first preset time so as to convey combustion-supporting gas, so that the welding gun is ignited. When the limit switch 40 is turned off, the circuit is turned off, the first solenoid valve 20 and the second solenoid valve 21 are simultaneously turned off to extinguish the welding gun, and the second delay relay 31 controls the third solenoid valve 22 to be turned off after delaying for a second preset time to improve the safety after extinguishing.
When the welding gun is far away from the first proximity switch 50, the first proximity switch 50 is closed, the first electromagnetic valve 20 and the second electromagnetic valve 21 are simultaneously closed, the corresponding combustible gas and combustion-supporting gas are stopped being conveyed, and at the moment, the welding gun is extinguished. In order to keep burning for welding even when the welding torch is away from the first proximity switch 50 in a state where the limit switch 40 is turned on. The welding control system 100 also includes a first contactor 60. The first normally open contact 61 of the first contactor 60 is connected in parallel with the first proximity switch 50 and then connected in series with the first coil 62 of the first contactor 60.
When the first proximity switch 50 is opened, the first normally open contact 61 of the first contactor 60 is closed to make the first coil 62 of the first contactor 60 have two current-carrying paths. When the first proximity switch 50 is closed, the first coil 62 of the first contactor 60 can still keep the energized state through the first normally open contact 61 thereof, and the self-locking function is realized. At this time, the first electromagnetic valve 20 and the second electromagnetic valve 21 continuously deliver the corresponding combustible gas and combustion-supporting gas, so that the welding gun can continuously burn after being far away from the first proximity switch 50, so that the welding gun is far away from the first proximity switch 50 for welding a workpiece to be welded. When the limit switch 40 is turned off, the first normally open contact 61 and the first proximity switch 50 cannot conduct current, the first solenoid valve 20 and the second solenoid valve 21 are simultaneously turned off, and the welding gun is turned off.
In the use process of the welding control system 100, when a welding gun approaches the first proximity switch 50, the first proximity switch 50 is opened, the first electromagnetic valve 20 simultaneously conveys combustible gas, and the first delay relay 30 controls the second electromagnetic valve 21 to be opened after delaying for a first preset time so as to convey combustion-supporting gas, so that the welding gun is ignited and the safety during ignition is improved. When the first proximity switch 50 is closed, the first coil 62 of the first contactor 60 can still keep the energized state through the first normally open contact 61 thereof, and the self-locking function is realized. At this time, the first electromagnetic valve 20 and the second electromagnetic valve 21 continuously deliver the corresponding combustible gas and combustion-supporting gas, so that the welding gun can continuously burn after being far away from the first proximity switch 50, and the welding gun can be conveniently welded to the workpiece to be welded after being far away from the first proximity switch 50. After the welding is finished, the limit switch 40 is closed to disconnect the circuit, the first electromagnetic valve 20 and the second electromagnetic valve 21 are closed simultaneously, the second delay relay 31 controls the third electromagnetic valve 22 to be closed after delaying for a second preset time, and the safety after flameout is improved.
In the welding control system 100, the first proximity switch 50 ignites the welding torch when the welding torch approaches, so as to avoid gas delivery before the welding torch is not ignited, thereby saving gas. The welding torch can be continuously burnt after being far away from the first proximity switch 50 through the first contactor 60, so that the welding torch can be conveniently and far away from the first proximity switch 50 to weld workpieces to be welded.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the welding control system 100 further includes a first igniter 70 and a second proximity switch 71, the first igniter 70 is connected in parallel to the circuit formed by the first solenoid valve 20, the first proximity switch 50 and the limit switch 40, the first igniter 70 is used for igniting the combustible gas, and the second proximity switch 71 and the first proximity switch 50 share the same sensing element.
The welding control system 100 described above is used when the welding gun is in proximity to the first proximity switch 50 and also in proximity to the second proximity switch 71. The first proximity switch 50 is opened simultaneously with the second proximity switch 71, the first solenoid valve 20 delivers the combustible gas, and the first igniter 70 ignites the combustible gas to ignite the torch. When the torch is moved away from the first proximity switch 50, it is also moved away from the second proximity switch 71. The first proximity switch 50 and the second proximity switch 71 are closed simultaneously, the ignition of the first igniter 70 is stopped, and the first contactor 60 realizes a self-locking function so that the welding gun can still continuously burn after being far away from the first proximity switch 50.
The welding control system 100 also includes a second igniter 80, a second power source 81, and a second contactor 82. The second igniter 80 is connected in series with the second power source 81, the second coil 83 of the second contactor 82 is connected in series between the second proximity switch 71 and the first igniter 70, the second normally open contact 84 of the second contactor 82 is connected in series with the second igniter 80, and the second igniter 80 and the first igniter 70 are simultaneously turned on or off under the control of the second proximity switch 71.
In some embodiments, the second supply voltage is 1.5V to improve ignition safety.
In the use process of the welding control system 100, when the second proximity switch 71 is turned on, the coil of the second coil 83 of the second contactor 82 is energized to close the second normally open contact 84 of the second contactor 82, so that the circuit between the second igniter 80 and the second power source 81 is conducted, and the second igniter 80 and the first igniter 70 are turned on simultaneously to improve the ignition stability. When the second proximity switch 71 is turned off, the coil of the second coil 83 of the second contactor 82 is not energized to keep the second normally open contact 84 of the second contactor 82 in an open state, and thus the circuit between the second igniter 80 and the second power source 81 is broken, and the second igniter 80 and the first igniter 70 are turned off at the same time.
In the welding control system 100, the first proximity switch 50 and the second proximity switch 71 are simultaneously turned on, the first solenoid valve 20 delivers the combustible gas, and the first igniter 70 ignites the combustible gas to ignite the welding gun, thereby facilitating the operation of the operator. The ignition stability is improved by the second igniter 80 being turned on simultaneously with the first igniter 70.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a welding device according to an embodiment of the present application. The welding apparatus 200 of the present embodiment employs the welding control system 100 described above. The welding device 200 further includes a welding gun (not shown), a welding table 91, and a hanger 92. The air supply pipelines of the first electromagnetic valve 20, the second electromagnetic valve 21 and the third electromagnetic valve 22 are all communicated with the welding gun. The welding control system 100 is disposed in the welding table 91, and the hook 92 is movably connected to the welding table 91 and is drivingly connected to the limit switch 40. When the welding gun is placed on the hook 92, the hook 92 moves under the action of gravity to trigger the limit switch 40 to be closed, and when the welding gun is taken out of the hook 92, the hook 92 resets to trigger the limit switch 40 to be opened.
The welding control system 100 includes a first proximity switch 50 that is turned on when the first proximity switch 50 is close to a corresponding sensing member and turned off when the first proximity switch is away from the sensing member, which is connected to the welding gun.
In the use process of the welding device 200, when welding is not needed, the welding gun is placed on the hook 92, the hook 92 moves under the action of gravity, the limit switch 40 is triggered to be closed, and the first electromagnetic valve 20, the second electromagnetic valve 21 and the third electromagnetic valve 22 stop conveying gas, so that gas is saved. During welding, the welding gun is taken out of the hook 92, the hook 92 is reset, the limit switch 40 is triggered to be opened, the third electromagnetic valve 22 starts to convey protective gas, the welding gun is close to the first proximity switch 50, and the first electromagnetic valve 20 and the second electromagnetic valve 21 respectively convey combustible gas and combustion-supporting gas to ignite the welding gun, so that the safety of the welding device 200 is improved.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.
Claims (10)
1. A welding control system, characterized by: the method comprises the following steps:
a first power supply;
the first electromagnetic valve is used for controlling the delivery of combustible gas and is connected with the first power supply in series through a limit switch;
the second electromagnetic valve is used for controlling the delivery of combustion-supporting gas and is connected with the first electromagnetic valve in parallel;
the third electromagnetic valve is used for controlling the transmission of protective gas and is connected with the first electromagnetic valve and the second electromagnetic valve in parallel;
the first time delay relay is connected with the second electromagnetic valve in series;
the second time delay relay is connected with the third electromagnetic valve in series;
when the limit switch is closed, the first electromagnetic valve and the second electromagnetic valve are closed simultaneously, and the second delay relay controls the third electromagnetic valve to be closed after delaying for a second preset time.
2. The welding control system of claim 1, wherein: the welding control system further comprises a first proximity switch, the first electromagnetic valve is connected with the limit switch in series through the first proximity switch, the third electromagnetic valve is connected with a circuit formed by the first electromagnetic valve and the first proximity switch in parallel, the first proximity switch is opened when being close to the corresponding induction piece, and the first proximity switch is closed when being far away from the induction piece.
3. The welding control system of claim 2, wherein: welding control system still includes first contactor, the first normally open contact of first contactor with first proximity switch connects in parallel after again with the first coil of first contactor is established ties, works as when first proximity switch opens, the closure of first normally open contact makes first coil has two circular telegram routes, works as when first proximity switch closes, first coil still can keep the circular telegram state through its first normally open contact.
4. The welding control system of claim 3, wherein: the welding control system further comprises a first igniter and a second proximity switch, the first igniter is connected in parallel to a circuit formed by the first electromagnetic valve, the first proximity switch and the limit switch, the first igniter is used for igniting combustible gas, and the second proximity switch and the first proximity switch share the same inductor.
5. The welding control system of claim 4, wherein: the welding control system further comprises a second igniter, a second power source and a second contactor, the second igniter is connected with the second power source in series, a second coil of the second contactor is connected with the second proximity switch in series and is connected between the first igniter, a second normally open contact of the second contactor is connected with the second igniter in series, and the second igniter and the first igniter are controlled by the second proximity switch to be simultaneously opened or closed.
6. The weld control system of claim 5, wherein: the second power supply voltage is 1.5V.
7. The welding control system of claim 1, wherein: the first preset time ranges from 1s to 2 s.
8. The welding control system of claim 1, wherein: the range of the second preset time is more than 1 min.
9. A welding device using the welding control system of any one of claims 1 to 8, wherein: welding set still includes welder, welding stage and couple, first solenoid valve the second solenoid valve reaches the gas supply line of third solenoid valve all communicates in welder, couple swing joint in welding stage and transmission are connected limit switch, work as welder place in when the couple, the couple removes under the action of gravity, triggers limit switch closes, works as welder follows when taking out in the couple, the couple resets, triggers limit switch opens.
10. A welding device as defined in claim 9, wherein: the welding control system comprises a first proximity switch, the first proximity switch is turned on when being close to a corresponding induction piece, and is turned off when being far away from the induction piece, and the induction piece is connected with the welding gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202120392325.4U CN215469137U (en) | 2021-02-22 | 2021-02-22 | Welding control system and welding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120392325.4U CN215469137U (en) | 2021-02-22 | 2021-02-22 | Welding control system and welding device |
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| CN215469137U true CN215469137U (en) | 2022-01-11 |
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