CN102357711A - Automatic arc-voltage regulation device of automatic welder - Google Patents
Automatic arc-voltage regulation device of automatic welder Download PDFInfo
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- CN102357711A CN102357711A CN2011103144275A CN201110314427A CN102357711A CN 102357711 A CN102357711 A CN 102357711A CN 2011103144275 A CN2011103144275 A CN 2011103144275A CN 201110314427 A CN201110314427 A CN 201110314427A CN 102357711 A CN102357711 A CN 102357711A
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Abstract
The invention relates to an automatic arc-voltage regulation device of an automatic welder, in particular to an automatic regulation device for automatically regulating arc voltage according to distance variation between a workpiece and a welding gun in the welding process of the automatic welder. The automatic arc-voltage regulation device comprises a voltage sensor used for detecting a voltage value when the welding gun carries out welding action, wherein the voltage sensor is connected with the input end of the controller; the output end of the controller is connected with a welding gun lifting driving motor used for driving the welding gun to lift; the controller stores the voltage value obtained when a voltage sensor detection welding gun welds on a reference position as a reference value; and when the voltage value detected by the voltage sensor is different from the reference value stored in the controller, the controller drives the welding gun to lift by the welding gun lifting driving motor until the voltage value obtained when the voltage sensor detection welding gun welds is consistent with the reference value stored in the controller. The automatic arc-voltage regulation device has simple structure, is convenient to install and use and is reliable and safe, distance between a workpiece and the welding gun is still kept consistent, and welding quality is improved.
Description
Technical field
The present invention relates to a kind of automatic regulating apparatus; Especially a kind of automatic welding machine arc voltage automatic regulating apparatus; Specifically can adjust the automatic regulating apparatus of arc voltage according to automatic welding machine variable in distance between workpiece and welding gun in welding process automatically, belong to the technical field of automatic welding machine.
Background technology
At present, in automatic welding occasion, if when adopting the TIG weldering, for guarantee weld width, the depth of weld always, moulding is attractive in appearance, must in welding process, keep the distance between welding gun and the workpiece constant.Yet,, be difficult to guarantee that the distance between workpiece and the welding gun is consistent owing to workpiece deformation, the unequal factor of work top in the welding process; Main at present by operative employee's manual setting, but manual setting is difficult to guarantee the uniformity of the distance between control workpiece and the welding gun, is difficult to reach the requirement of high welding quality.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, a kind of automatic welding machine arc voltage automatic regulating apparatus is provided, its compact conformation; Easy to install; It is consistent to make that workpiece and distance between welding gun remain, and improves welding quality, safe and reliable.
According to technical scheme provided by the invention, said automatic welding machine arc voltage automatic regulating apparatus comprises the voltage sensor of magnitude of voltage when being used to detect the welding gun welding job, and said voltage sensor links to each other with the input of controller; The output of said controller be used to drive the welding gun up-down drive motors that welding gun goes up and down and link to each other; Magnitude of voltage when controller welds the voltage sensor senses welding gun in reference position storage and as a reference value; When a reference value of storing in the magnitude of voltage of voltage sensor senses and the controller is inequality; Controller goes up and down through welding gun up-down drive motor drives welding gun, and a reference value of storing in magnitude of voltage when the voltage sensor senses welding gun welds and the controller is consistent.
Said controller links to each other with welding gun up-down drive motors through stepper motor driver.Said voltage sensor links to each other with the input of controller through A/D converter; The input of controller links to each other with current sensor through A/D converter; Current value after the striking of said current sensor senses welding gun is also imported in the controller; When the current value of current sensor senses when welding gun initially welds, the magnitude of voltage when controller driving voltage sensor detects welding gun work.
Said welding gun and workpiece all link to each other with automatic welding machine, and welding gun forms the closed-loop path through workpiece and automatic welding machine.
Said controller links to each other with man-machine interface, and controller shows the current value of current sensor senses and the magnitude of voltage of voltage sensor senses through man-machine interface.
Said controller comprises PLC.Said welding gun up-down drive motors is a stepper motor.
Advantage of the present invention: through adjusting the distance between welding gun and the workpiece in advance, and be set at the reference position; Controller with the magnitude of voltage of voltage sensor senses welding gun when the reference position as a reference value and storage; When welding gun welded workpiece, controller compared the magnitude of voltage and a reference value of voltage sensor senses; According to the difference between magnitude of voltage and a reference value; Controller drives welding gun up-down drive motors forward or reverse through stepper motor driver, makes welding gun rise or descends, and makes that welding gun distance between welding gun and the workpiece when distance between the workpiece can remain on the reference position is the same; Compact conformation; Easy to install, improve welding quality, safe and reliable.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Control corresponding schematic diagram when Fig. 2 is PLC for controller of the present invention.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
Like Fig. 1 ~ shown in Figure 2: the present invention includes welding gun 1, current sensor 2, automatic welding machine 3, A/D converter 4, voltage sensor 5, controller 6, man-machine interface 7, stepper motor driver 8, welding gun up-down drive motors 9 and workpiece 10.
As shown in Figure 1: the quality of weld seam when welding in order to improve automatic welding machine 3; The operating current of welding gun 1 when said controller 6 detects automatic welding machines 3 welding through current sensor 2, and the operating voltage when detecting welding guns 1 welding in real time through voltage sensor 5.Current sensor 2 all links to each other with controller 6 through A/D converter 4 with voltage sensor 5, and the output of controller 6 links to each other with voltage sensor 5, the voltage sample during 1 work of controller 6 control voltage sensors 5 Butt welding guns.Controller 6 also links to each other with man-machine interface 7, can show the current value of output current sensor 2 detections and the magnitude of voltage that voltage sensor 5 detects through man-machine interface 7.Height with workpiece 10 is consistent in when welding in order to make welding gun 1, and the output of controller 6 passes through stepper motor driver 8 and links to each other with welding gun up-down drive motors 9, and said welding gun up-down drive motors 9 is a stepper motor.The forward or reverse of welding gun up-down drive motors 9 can drive welding gun 1, thus the uniformity of weld seam can keep welding gun 1 on workpiece 10, to weld the time.Controller 6 can be PLC, also can be other little process chip.When current sensor 2 detects closed-loop path that welding gun 1 and workpiece 10 and automatic welding machine 3 constitute electric current is arranged, the striking success is described then, the voltage during output control voltage sensor 5 beginning Butt welding guns 1 work of controller 6 detects; And the magnitude of voltage when controller 6 detects welding gun 1 initialization with voltage sensor 5 is as a reference value.When welding gun 1 highly changes when welding; Respective change can take place in the magnitude of voltage that voltage sensor 5 detects; Controller 6 compares value and a reference value that voltage sensor 5 detects; And through the relative altitude of welding gun up-down drive motors 9 corresponding adjusting welding guns 1 with workpiece 10, consistent until magnitude of voltage and a reference value that voltage sensor 5 detects.
As shown in Figure 2: when being PLC for controller 6, the control corresponding schematic diagram.During work, controller 6 reads the magnitude of voltage of voltage sensor 5 detections and the current value that current sensor 2 detects.When current sensor 2 had detected electric current, controller 6 control voltage sensors 5 carried out voltage detecting, through the magnitude of voltage of continuous comparative voltage sensor 5 detections and the difference of a reference value, can adjust the height of welding gun 1 in real time.
Like Fig. 1 ~ shown in Figure 2: during work; Before automatic welding machine 3 power supply strikings; At first adjust the distance (highly) between welding gun 1 and the workpiece 10, after the striking success, current sensor 2 can detect welding gun 1 has electric current with workpiece 10 and automatic welding machine 3 formation closed-loop paths; And when being input to controller 6 in through A/D converter 4 corresponding current value, 5 work of controller 6 control voltage sensors.After time-delay a period of time (starting the arc delay time), arc voltage is transferred in the controller 6 through A/D converter 4 through the magnitude of voltage that overvoltage sensor 5 detects, and the magnitude of voltage of controller 6 during with said welding gun 1 initialization stored as a reference value.In 1 pair of workpiece 10 welding process of welding gun, controller 6 constantly receives from voltage sensor 6 and passes the magnitudes of voltage (currency) of coming, the controller current magnitude of voltage and a reference value comparison that will detect then.When if the distance (highly) between workpiece 10 and the welding gun 1 changes, the arc voltage that voltage sensor 5 detects just begins to change.When welding gun 1 increases with workpiece 10 distances; The arc voltage that voltage sensor 5 detects output just raises; Controller 6 is according to higher arc voltage value, and making stepper motor driver 8 drive welding gun up-down drive motors 9 is just changeing, and makes the distance of 10 of welding gun 1 and workpiece diminish through welding gun up-down drive motors 9; Consistent until voltage sensor 5 detected magnitudes of voltage and a reference value, the distance that promptly reaches 10 of welding gun 1 and workpiece is consistent with predefined reference position.When the distance of 10 of welding gun 1 and workpiece diminishes; The voltage that voltage sensor 5 detects is just less than a reference value; Controller 6 drives 9 counter-rotatings of welding gun up-down drive motors according to the magnitude of voltage that voltage sensor 5 detects through stepper motor driver 8; Make welding gun 1 rise, it is consistent to detect the arc voltage and a reference value that obtain until voltage sensor 5, makes that promptly the relative position and the predefined reference position of 10 of welding gun 1 and workpiece are consistent.Controller 6 compares the magnitude of voltage that voltage sensor 5 detects in real time with a reference value, can guarantee stablizing of welding gun 1 and 10 relative positions of workpiece, can guarantee welding gun 1 weldquality when welding.
The present invention is through adjusting the distance between welding gun 1 and the workpiece 10 in advance, and is set at the reference position; Controller 6 detects the magnitude of voltage of welding guns 1 when the reference position as a reference value and storage with voltage sensor 5; When 1 pair of workpiece 10 of welding gun welded, controller 6 compared magnitude of voltage and a reference value that voltage sensor 5 detects; According to the difference between magnitude of voltage and a reference value; Controller 6 drives welding gun up-down drive motors 9 forward or reverse through stepper motor driver 8, makes welding gun 1 rise or descend, and makes that welding gun 1 distance between welding gun and the workpiece 10 when distance between the workpiece 10 can remain on the reference position is the same; Compact conformation; Easy to install, improve welding quality, safe and reliable.
Claims (7)
1. automatic welding machine arc voltage automatic regulating apparatus, it is characterized in that: comprise the voltage sensor (5) of magnitude of voltage when being used to detect welding gun (1) welding job, said voltage sensor (5) links to each other with the input of controller (6); The output of said controller (6) be used to drive the welding gun up-down drive motors (9) that welding gun (1) goes up and down and link to each other; Magnitude of voltage when controller (6) detects voltage sensor (5) welding gun (1) and weld in the reference position is stored and as a reference value; When a reference value of storing in magnitude of voltage that voltage sensor (5) detects and the controller (6) is inequality; Controller (6) drives welding gun (1) through welding gun up-down drive motors (9) and goes up and down, and a reference value of storage is consistent in magnitude of voltage when voltage sensor (5) detects welding gun (1) welding and the controller (6).
2. automatic welding machine arc voltage automatic regulating apparatus according to claim 1 is characterized in that: said controller (6) links to each other with welding gun up-down drive motors (9) through stepper motor driver (8).
3. automatic welding machine arc voltage automatic regulating apparatus according to claim 1 is characterized in that: said voltage sensor (5) links to each other with the input of controller (6) through A/D converter (4); The input of controller (6) links to each other with current sensor (2) through A/D converter (4); Said current sensor (2) detects the current value after welding gun (1) striking and imports in the controller (6); When current sensor (2) detects the current value of welding gun (1) when initially welding, the magnitude of voltage when controller (6) driving voltage sensor (5) detects welding gun (1) work.
4. automatic welding machine arc voltage automatic regulating apparatus according to claim 1; It is characterized in that: said welding gun (1) and workpiece (10) all link to each other with automatic welding machine (3), and welding gun (1) forms the closed-loop path through workpiece (10) and automatic welding machine (3).
5. automatic welding machine arc voltage automatic regulating apparatus according to claim 3; It is characterized in that: said controller (6) links to each other with man-machine interface (7), and controller (6) shows the current value of current sensor (2) detection and the magnitude of voltage that voltage sensor (5) detects through man-machine interface (7).
6. automatic welding machine arc voltage automatic regulating apparatus according to claim 1 is characterized in that: said controller (6) comprises PLC.
7. automatic welding machine arc voltage automatic regulating apparatus according to claim 1 is characterized in that: said welding gun up-down drive motors (9) is a stepper motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103144275A CN102357711A (en) | 2011-10-17 | 2011-10-17 | Automatic arc-voltage regulation device of automatic welder |
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| CN2011103144275A CN102357711A (en) | 2011-10-17 | 2011-10-17 | Automatic arc-voltage regulation device of automatic welder |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889536A (en) * | 2015-05-15 | 2015-09-09 | 无锡阳工机械制造有限公司 | Argon arc welding based intelligent welding method with safety protection |
| CN104889548A (en) * | 2015-05-15 | 2015-09-09 | 无锡阳工机械制造有限公司 | Argon arc welding based welding process |
| CN104889547A (en) * | 2015-05-15 | 2015-09-09 | 无锡阳工机械制造有限公司 | Argon arc welding based welding method |
| CN104889535A (en) * | 2015-05-15 | 2015-09-09 | 无锡阳工机械制造有限公司 | Argon arc welding based intelligent welding process |
| CN106735785A (en) * | 2016-12-08 | 2017-05-31 | 茂名重力石化装备股份公司 | A kind of automatic welding pipette tips for the embedded Deep Hole Welding of shell-and-tube thin tubesheet |
| CN109877421A (en) * | 2019-03-19 | 2019-06-14 | 昆山华恒焊接股份有限公司 | Welding gun control method and its control system |
| CN110814469A (en) * | 2019-10-17 | 2020-02-21 | 南京工业大学 | Multi-mode automatic arc voltage regulation control system |
| CN111266710A (en) * | 2020-03-23 | 2020-06-12 | 昆山安意源管道科技有限公司 | Tungsten electrode inert gas protection welding method |
| CN111283310A (en) * | 2020-03-23 | 2020-06-16 | 昆山安意源管道科技有限公司 | Gas shielded welding method for consumable electrode |
| CN112091374A (en) * | 2020-09-11 | 2020-12-18 | 中国航发贵州黎阳航空动力有限公司 | Automatic argon arc welding method under dynamic change of welding gap |
| CN112108745A (en) * | 2019-06-22 | 2020-12-22 | 北京博清科技有限公司 | Welding gun adjusting device and method |
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| CN202271079U (en) * | 2011-10-17 | 2012-06-13 | 无锡市南方电器制造有限公司 | Arc voltage automatic adjusting device of automatic welding machine |
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2011
- 2011-10-17 CN CN2011103144275A patent/CN102357711A/en active Pending
Patent Citations (4)
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| US4943701A (en) * | 1988-03-18 | 1990-07-24 | Hitachi, Ltd. | Apparatus for and method of detecting arc length, apparatus for and method of controlling welding torch height, and automatic welder and automatic welding method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889536A (en) * | 2015-05-15 | 2015-09-09 | 无锡阳工机械制造有限公司 | Argon arc welding based intelligent welding method with safety protection |
| CN104889548A (en) * | 2015-05-15 | 2015-09-09 | 无锡阳工机械制造有限公司 | Argon arc welding based welding process |
| CN104889547A (en) * | 2015-05-15 | 2015-09-09 | 无锡阳工机械制造有限公司 | Argon arc welding based welding method |
| CN104889535A (en) * | 2015-05-15 | 2015-09-09 | 无锡阳工机械制造有限公司 | Argon arc welding based intelligent welding process |
| CN106735785A (en) * | 2016-12-08 | 2017-05-31 | 茂名重力石化装备股份公司 | A kind of automatic welding pipette tips for the embedded Deep Hole Welding of shell-and-tube thin tubesheet |
| CN109877421A (en) * | 2019-03-19 | 2019-06-14 | 昆山华恒焊接股份有限公司 | Welding gun control method and its control system |
| CN112108745A (en) * | 2019-06-22 | 2020-12-22 | 北京博清科技有限公司 | Welding gun adjusting device and method |
| CN110814469A (en) * | 2019-10-17 | 2020-02-21 | 南京工业大学 | Multi-mode automatic arc voltage regulation control system |
| CN111266710A (en) * | 2020-03-23 | 2020-06-12 | 昆山安意源管道科技有限公司 | Tungsten electrode inert gas protection welding method |
| CN111283310A (en) * | 2020-03-23 | 2020-06-16 | 昆山安意源管道科技有限公司 | Gas shielded welding method for consumable electrode |
| CN112091374A (en) * | 2020-09-11 | 2020-12-18 | 中国航发贵州黎阳航空动力有限公司 | Automatic argon arc welding method under dynamic change of welding gap |
| CN112091374B (en) * | 2020-09-11 | 2022-03-22 | 中国航发贵州黎阳航空动力有限公司 | Automatic argon arc welding method under dynamic change of welding gap |
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Application publication date: 20120222 |