CN203610822U - Submerged-arc welding arc striking control device - Google Patents
Submerged-arc welding arc striking control device Download PDFInfo
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- CN203610822U CN203610822U CN201320664820.1U CN201320664820U CN203610822U CN 203610822 U CN203610822 U CN 203610822U CN 201320664820 U CN201320664820 U CN 201320664820U CN 203610822 U CN203610822 U CN 203610822U
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- welding
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Abstract
The utility model discloses a submerged-arc welding arc striking control device, which comprises a DSP (digital signal processor) controller, a welding trolley, a welding power source and an arc voltage detection circuit, wherein the DSP controller is respectively connected with the welding trolley, the welding power source and the arc voltage detection circuit, the arc voltage detection circuit for detecting the arc voltage at the welding electric arc area is used for sending the current arc voltage value to the DSP controller, the DSP controller is used for sending a signal to the welding trolley to control the welding trolley to move, meanwhile, the DSP controller is used for controlling the minimum duty cycle of the welding power source to control the output voltage of the welding power source, and the power of the arc voltage detection circuit is supplied by the welding power source. The device has the advantages that by adopting the DSP controller, the signal can be processed in real time, the response speed of the system is improved, the detection feedback is more sensitive and reliable, and the moving speed of the welding trolley and the voltage value of the welding power source can be accurately controlled; by utilizing the DSP controller, the welding power source is controlled to supply the power for the arc voltage detection circuit, so an auxiliary power source is not needed.
Description
Technical field
The utility model relates to submerged-arc welding research field, particularly a kind of submerged-arc welding arc striking control device.
Background technology
Along with industrialized continuous propelling, the scope that welding equipment uses is more and more wider, also has extremely wide application as the submerged-arc welding equipment of one of higher automatic weld equipment of current production efficiency.In prior art, as shown in Figure 1, after solder flux 2 is flowed out by flux hopper 3, heap applies on the workpiece 1 assembling the structural principle of submerged-arc welding equably, and welding wire 4 is sent into welding arc district by wire feeder through wire pushing roller 5 and ignition tip 6.The two ends of the source of welding current are connected on respectively on ignition tip 6 and workpiece 1.Wire feeder, flux hopper 3 and control device are all contained on a welding tractor conventionally to realize the movement of welding arc.Welding process is to realize by the press button on operating control device.In welding process, at workpiece, welded place is covered with the granular flux that one deck 30-50mm is thick, and the welding wire of sending to continuously produces electric arc under welding flux layer and between weldment, and the heat of electric arc makes welding wire, workpiece and solder melts, forms metal bath, and they and air are completely cut off.Along with welding machine moves forward automatically, electric arc constantly melts weldment metal, welding wire and the solder flux in front, and the edge at rear, molten bath begins to cool down and solidify formation weld seam, molten slag subsequently also condensation form hard skull.
The starting the arc control mode of present submerged-arc welding is divided into the scratching starting the arc and the jackscrew starting the arc, and in the process of the jackscrew starting the arc, due to the jackscrew starting the arc, that reaction is set is sensitive not, and the regular dolly that causes, by jack-up or workpiece deformation, affects welding quality and welding efficiency.Detection voltage in simultaneously present jackscrew arc starter is that accessory power supply provides, thereby in system, needs two power supplys, and this has also increased the trouble point of complete machine.
Utility model content
Main purpose of the present utility model is that the shortcoming that overcomes prior art, with not enough, provides a kind of submerged-arc welding arc striking control device, and this device, by arc voltage testing circuit and DSP control mode are set, can be realized the accurate control in welding process.
The purpose of this utility model realizes by following technical scheme: a kind of submerged-arc welding arc striking control device, comprise dsp controller, welding tractor, the source of welding current, arc voltage testing circuit, dsp controller respectively with welding tractor, the source of welding current is connected with arc voltage testing circuit, current arc voltage value is sent to dsp controller by arc voltage testing circuit for detection of welding arc district place's arc voltage, dsp controller sends control signals to welding tractor, control the movement of welding tractor, dsp controller is for controlling the output voltage of the source of welding current by the minimum duty cycle of controlling the source of welding current simultaneously, described arc voltage testing circuit is powered by the source of welding current.
Further, described arc voltage testing circuit comprises successively connected voltage sampling module, voltage filter module, voltage transformation module, voltage sampling module is arranged on welding arc district, be used for taking voltage signal values, after voltage filter module filtered, then carry out digital-to-analogue conversion and be input to dsp controller through voltage transformation module.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, the utility model, by adopting dsp controller, can be processed in real time to signal, and the reaction speed of system is improved, and detects feedback sensitiveer reliable, can accurately control the translational speed of welding tractor, the magnitude of voltage of the source of welding current.
2, in the utility model, can control the source of welding current to the power supply of arc voltage testing circuit by dsp controller, thereby not need accessory power supply.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of submerged-arc welding in prior art;
Fig. 2 is structure principle chart of the present utility model.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1
As shown in Figure 2, a kind of submerged-arc welding arc striking control device described in the present embodiment, comprise dsp controller, welding tractor, the source of welding current, arc voltage testing circuit, wherein on welding tractor, comprise flux hopper, wire feeder, wire pushing roller, ignition tip, welding wire is sent into welding arc district by wire feeder through wire pushing roller and ignition tip, workpiece is below welding tractor, the flux coating that flux hopper flows out is on workpiece to be welded, in welding process, welding tractor moves according to position to be welded on workpiece.
The position of welding tractor moves through dsp controller and connects, and dsp controller can carry out signal processing real-time.Arc voltage testing circuit comprises successively connected voltage sampling module, voltage filter module, voltage transformation module, voltage sampling module is arranged on welding arc district, be used for taking voltage signal values, after voltage filter module filtered, then carry out digital-to-analogue conversion and be input to dsp controller through voltage transformation module.The source of welding current is connected with workpiece with ignition tip respectively, also be connected with dsp controller simultaneously, dsp controller is controlled the output voltage of the source of welding current by controlling the minimum duty cycle of the source of welding current, for example can control the source of welding current powers to arc voltage testing circuit, by controlling the minimum duty cycle of the source of welding current, arc voltage testing circuit while making its floating voltage that produces 10V provide as jackscrew, in the time that welding wire touches workpiece, the voltage of 10V becomes 2V, welding tractor stops wire feed, owing to not pressing start button, welding wire can not stick on workpiece.Because voltage is that the source of welding current self produces, do not need to increase additional devices simultaneously, work more reliable.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (2)
1. a submerged-arc welding arc striking control device, it is characterized in that, comprise dsp controller, welding tractor, the source of welding current, arc voltage testing circuit, dsp controller is connected with welding tractor, the source of welding current and arc voltage testing circuit respectively, current arc voltage value is sent to dsp controller by arc voltage testing circuit for detection of welding arc district place's arc voltage, dsp controller sends control signals to welding tractor, control the movement of welding tractor, dsp controller is for controlling the output voltage of the source of welding current by the minimum duty cycle of controlling the source of welding current simultaneously; Described arc voltage testing circuit is powered by the source of welding current.
2. submerged-arc welding arc striking control device according to claim 1, it is characterized in that, described arc voltage testing circuit comprises successively connected voltage sampling module, voltage filter module, voltage transformation module, voltage sampling module is arranged on welding arc district, be used for taking voltage signal values, after voltage filter module filtered, then carry out digital-to-analogue conversion and be input to dsp controller through voltage transformation module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664820.1U CN203610822U (en) | 2013-10-24 | 2013-10-24 | Submerged-arc welding arc striking control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664820.1U CN203610822U (en) | 2013-10-24 | 2013-10-24 | Submerged-arc welding arc striking control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203610822U true CN203610822U (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320664820.1U Expired - Fee Related CN203610822U (en) | 2013-10-24 | 2013-10-24 | Submerged-arc welding arc striking control device |
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| Country | Link |
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| CN (1) | CN203610822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202177A (en) * | 2016-12-19 | 2018-06-26 | 上海沪工焊接集团股份有限公司 | Gas shielded arc welding striking control method and device |
-
2013
- 2013-10-24 CN CN201320664820.1U patent/CN203610822U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202177A (en) * | 2016-12-19 | 2018-06-26 | 上海沪工焊接集团股份有限公司 | Gas shielded arc welding striking control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20141024 |
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| EXPY | Termination of patent right or utility model |