CN201889576U - Automatic welding system with dropping characteristic of submerged arc welding machine digitally preset on site - Google Patents
Automatic welding system with dropping characteristic of submerged arc welding machine digitally preset on site Download PDFInfo
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- CN201889576U CN201889576U CN2010205178224U CN201020517822U CN201889576U CN 201889576 U CN201889576 U CN 201889576U CN 2010205178224 U CN2010205178224 U CN 2010205178224U CN 201020517822 U CN201020517822 U CN 201020517822U CN 201889576 U CN201889576 U CN 201889576U
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Abstract
The utility model discloses an automatic welding system with dropping characteristic of a submerged arc welding machine which is digitally preset on site, comprising a submerged arc welding machine, a submerged arc welding machine power supply control module and a welding tractor control module. In the automatic welding system provided by the utility model, the main welding parameters (welding current, voltage, and welding speed) of the dropping characteristic of a submerged arc welding machine are preset on the welding tractor control module, the model of dropping characteristic is selected a power supply of the submerged arc welding machine; when the automatic welding process is started, the operation of data communication in the system is carried out by means of a fieldbus with high reliability, dual CPUs and internal software systems which are disposed in the welding tractor control module and the submerged arc welding machine power supply control module are used for operating in real time during the welding process, so as to carry out magnitude comparison of the preset parameter to the actual welding parameter and to correct the deviation to control the welding parameter which is actually exported in the preset allowable parameter deviation scope (10%) and to ensure the stable operation of the whole welding process.
Description
Technical field
The utility model relates to welding technology field, is specifically related to a kind of submerged arc welding machine drop characteristic robot welding system that presets with field digital.
Background technology
The submerged arc welding machine that still adopts analog circuit control that the submerged arc welding machine occupation rate of market that present welding profession is produced is the highest, the power supply that these submerged arc welding machines adopt or be flat characteristic, it is drop characteristic, or both have (adopt switch switch) concurrently, and parameters such as the welding current of such type, voltage and wire feed rate all adopt potentiometer manually to adjust at random.Simultaneously, the transfer of data between dc source and the submerged arc welding carriage adopts 10 cores or above multicore cable, under abominable operating mode, often be easy to break, or fault such as short circuit.
At present realized that its digit preset of automatic submerged arc welding machine of digit preset welding parameter partly only limits to the flat characteristic mode of operation.Its working method generally is that the current/voltage that arc welding rectifier is exported is passed through specific circuit filtering, the A/D conversion, send into single-chip microcomputer, or other microprocessors carry out the digital PID computing, output controlled quentity controlled variable, the output of control dc source, dolly partly adopts constant speed or alternate wire-feed, realize the automatic welding process of submerged arc welding machine, simultaneously, the transfer of data between dc source and the submerged arc welding carriage adopts LAN bus or RS485 serial ports or other serial communication modes.
Realize that the difficulty that preset mode automatic submerged arc welding machine drop characteristic welds automatically is: on the one hand, solve the welding parameter of submerged arc welding machine drop characteristic output and the problem of preset parameter coupling operation: if change the welding current value, (characteristic curve that has also correspondingly changed submerged arc welding machine simultaneously (increases electric current, curve moves to right, reduce electric current, curve moves to left), because the molten curve such as grade of solder wire convey is a skew lines that makes progress, itself and characteristic intersection point move up on ordinate,) based on the auto correlation reason of molten curves such as the characteristic curve of welding machine electric power and welding, so, at this moment weldingvoltage will increase or reduce automatically, and then cause preset voltage and actual welding voltage to produce bigger skew, preset inefficacy thereby produce.On the other hand, data communication problem between dc source and the submerged arc welding carriage: because the control signal of solder wire convey etc. is based on the weldingvoltage that derives from main frame (being Arc Welding Power), a large amount of operational datas just must be finished by data communication, this just requires bus that higher transmission speed and very strong real-time will be arranged, simultaneously, because submerged arc welding machine often works in quite abominable industrial environment, higher requirement must be arranged to the antijamming capability of fieldbus.
The drop characteristic automatic submerged arc welding machine that analog circuit is realized, because of the preset parameter that does not have to quantize, the starting the arc process and the isoparametric adjustment process of welding current voltage of welding all need rely on artificial adjustment, the welding result of different people's operations is inconsistent, poor controllability and quality conformance are relatively poor, simultaneously, transfer of data between dc source and the submerged arc welding carriage adopts other serial modes such as LAN bus or RS485, not only data transmission bauds and distance are subjected to certain limitation, and its antijamming capability also will be very limited.The stability and the uniformity of welding quality be can not guarantee like this, the formulation and the enforcement of weld procedure specification will be unfavorable for.
The digitlization automatic submerged arc welding machine of flat characteristic is compared the drop characteristic bond pattern, groove to welding work pieces is had relatively high expectations, requirement has higher fineness or flatness, otherwise, in the welding process, bigger variation will take place such as welding current in parameters of welding, and perhaps the actual welding parameter will largely depart from the requirement of preset value.Flat characteristic pattern or make the user increase production cost to a certain extent, or reduce the welding quality requirement.
The utility model content
The purpose of this utility model is that a kind of submerged arc welding machine drop characteristic robot welding system that presets with field digital is provided in order to solve the problem that above-mentioned prior art exists, it is generally not high that this system can adapt to the present machining level of China, exist welding work pieces because of equipment or factory condition difference, groove process often is difficult to guarantee the present situation of the requirement (comparatively coarse) of its flatness and fineness, adopt the welding method of the drop characteristic of digit preset formula automatic submerged arc welding machine to weld such workpiece, can comprehensively solve the defective in simulation welding machine and the digital welding machine flat characteristic pattern, improve user's welding procedure level, reduce the workpiece processing cost, guarantee the uniformity of welding quality and welding quality.
To achieve the above object of the invention, the technical scheme that the utility model adopted is: a kind of submerged arc welding machine drop characteristic robot welding system that presets with field digital is provided, it is characterized in that: comprise submerged arc welding machine control module and welding tractor control module;
Described submerged arc welding machine control module includes power transformer, main circuit, current divider, three-phase synchronization module, pulse-triggered module, current signal amplifilter, power supply microprocessor, power module, voltage signal step-down filtration module, display input/output control module and CAN module; Described power transformer one end is connected with external three-phase mains, and the other end is connected with welding tractor via main circuit successively; Between described main circuit and the welding tractor one is serially connected with a current divider on the circuit mutually; Described three-phase synchronization module one end is connected with power transformer, and the other end is connected with the power supply microprocessor; Described pulse-triggered module one end is connected with main circuit, and the other end is connected with the power supply microprocessor; Described current signal amplifilter one end is connected with current divider, and the other end is connected with the power supply microprocessor; Described voltage signal step-down filtration module one end respectively and main circuit be connected with two-phase circuit between the welding tractor, the other end is connected with the power supply microprocessor; Also be connected with power module, CAN module and display input/output module on the described power supply microprocessor;
Described welding tractor control module includes welding tractor, wire feed executing agency, walking driver module, power module, dolly microprocessor, CAN module, display contact control module and wire feed driver module; Described walking driver module one end is connected with welding tractor, and the other end is connected with the dolly microprocessor; Described wire feed driver module one end is connected with wire feed executing agency, and the other end is connected with the dolly microprocessor; Also be connected with CAN module and display contact control module on the described dolly microprocessor; Also be connected with power module on described dolly microprocessor and the CAN module respectively;
CAN module in the described submerged arc welding machine control module is connected with CAN module in the welding tractor control module by fieldbus.
Submerged arc welding machine drop characteristic robot welding system according to band field digital provided by the utility model presets is characterized in that: described display contact control module also includes a highlighted lan settings lcd touch display screen.
Submerged arc welding machine drop characteristic robot welding system according to band field digital provided by the utility model presets is characterized in that: the CAN module in described submerged arc welding machine control module and the welding tractor control module has included CAN controller, high speed photo coupling and CAN transceiver.
Submerged arc welding machine drop characteristic robot welding system according to band field digital provided by the utility model presets is characterized in that: described CAN controller adopts the CAN controller of 24M crystal oscillator.
In sum, it is generally not high that the submerged arc welding machine drop characteristic robot welding system that band field digital provided by the utility model presets can adapt to the existing mechanical level of processing, exist welding work pieces because of equipment or factory condition difference, groove process often is difficult to guarantee the situation of the requirement (comparatively coarse) of its flatness and fineness, utilize native system to weld such workpiece by the welding method that adopts digit preset formula automatic submerged arc welding machine drop characteristic, can evade the defective in simulation welding machine and the digital welding machine flat characteristic pattern, improve user's welding procedure level, reduce the workpiece processing cost, guarantee the uniformity of welding quality and welding quality.
Description of drawings
Fig. 1 is the schematic diagram of the submerged arc welding machine drop characteristic robot welding system that presets of band field digital.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail:
As shown in Figure 1, the submerged arc welding machine drop characteristic robot welding system that this band field digital presets is characterized in that: comprise submerged arc welding machine control module and welding tractor control module; Described submerged arc welding machine control module includes power transformer, main circuit, current divider, three-phase synchronization module, pulse-triggered module, current signal amplifilter, power supply microprocessor, power module, voltage signal step-down filtration module, display input/output control module and CAN module; Described power transformer one end is connected with external three-phase mains, and the other end is connected with welding tractor via main circuit successively; Between described main circuit and the welding tractor one is serially connected with a current divider on the circuit mutually; Described three-phase synchronization module one end is connected with power transformer, and the other end is connected with the power supply microprocessor; Described pulse-triggered module one end is connected with main circuit, and the other end is connected with the power supply microprocessor; Described current signal amplifilter one end is connected with current divider, and the other end is connected with the power supply microprocessor; Described voltage signal step-down filtration module one end respectively and main circuit be connected with two-phase circuit between the welding tractor, the other end is connected with the power supply microprocessor; Also be connected with power module, CAN module and display input/output module on the described power supply microprocessor; Described welding tractor control module includes welding tractor, wire feed executing agency, walking driver module, power module, dolly microprocessor, CAN module, display contact control module and wire feed driver module; Described walking driver module one end is connected with welding tractor, and the other end is connected with the dolly microprocessor; Described wire feed driver module one end is connected with wire feed executing agency, and the other end is connected with the dolly microprocessor; Also be connected with CAN module and display contact control module on the described dolly microprocessor; Also be connected with power module on described dolly microprocessor and the CAN module respectively; CAN module in the described submerged arc welding machine control module is connected with CAN module in the welding tractor control module by fieldbus.
Described display contact control module also includes a highlighted lan settings lcd touch display screen.CAN module in described submerged arc welding machine control module and the welding tractor control module has included CAN controller, high speed photo coupling and CAN transceiver.Described CAN controller adopts the CAN controller of 24M crystal oscillator.
The submerged arc welding machine drop characteristic robot welding system that band field digital provided by the utility model presets is finished the presetting of main welding condition (welding current, voltage and speed of welding etc.) of submerged arc welding machine drop characteristic in the welding tractor control module, select the drop characteristic pattern on submerged arc welding electric power; After starting automatic welding process, system carries out data communication by the fieldbus of high reliability, the two CPU and the embedded software system that are arranged in the submerged arc welding machine control module of welding tractor control module and submerged arc welding machine carry out the real-time operation of welding process, finish the value contrast of preset parameter and actual welding parameter and depart from correction, the welding parameter (10%) in the allowed band that preset parameter departs from that keeps actual output is to guarantee to have suffered the stable operation of welding process.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (4)
1. a submerged arc welding machine drop characteristic robot welding system that presets with field digital is characterized in that: comprise submerged arc welding machine control module and welding tractor control module;
Described submerged arc welding machine control module includes power transformer, main circuit, current divider, three-phase synchronization module, pulse-triggered module, current signal amplifilter, power supply microprocessor, power module, voltage signal step-down filtration module, display input/output control module and CAN module; Described power transformer one end is connected with external three-phase mains, and the other end is connected with welding tractor via main circuit successively; Between described main circuit and the welding tractor one is serially connected with a current divider on the circuit mutually; Described three-phase synchronization module one end is connected with power transformer, and the other end is connected with the power supply microprocessor; Described pulse-triggered module one end is connected with main circuit, and the other end is connected with the power supply microprocessor; Described current signal amplifilter one end is connected with current divider, and the other end is connected with the power supply microprocessor; Described voltage signal step-down filtration module one end respectively and main circuit be connected with two-phase circuit between the welding tractor, the other end is connected with the power supply microprocessor; Also be connected with power module, CAN module and display input/output module on the described power supply microprocessor;
Described welding tractor control module includes welding tractor, wire feed executing agency, walking driver module, power module, dolly microprocessor, CAN module, display contact control module and wire feed driver module; Described walking driver module one end is connected with welding tractor, and the other end is connected with the dolly microprocessor; Described wire feed driver module one end is connected with wire feed executing agency, and the other end is connected with the dolly microprocessor; Also be connected with CAN module and display contact control module on the described dolly microprocessor; Also be connected with power module on described dolly microprocessor and the CAN module respectively;
CAN module in the described submerged arc welding machine control module is connected with CAN module in the welding tractor control module by fieldbus.
2. the submerged arc welding machine drop characteristic robot welding system that band field digital according to claim 1 presets is characterized in that: described display contact control module also includes a highlighted lan settings lcd touch display screen.
3. the submerged arc welding machine drop characteristic robot welding system that band field digital according to claim 1 presets is characterized in that: the CAN module in described submerged arc welding machine control module and the welding tractor control module has included CAN controller, high speed photo coupling and CAN transceiver.
4. the submerged arc welding machine drop characteristic robot welding system that band field digital according to claim 3 presets is characterized in that: described CAN controller adopts the CAN controller of 24M crystal oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205178224U CN201889576U (en) | 2010-09-03 | 2010-09-03 | Automatic welding system with dropping characteristic of submerged arc welding machine digitally preset on site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205178224U CN201889576U (en) | 2010-09-03 | 2010-09-03 | Automatic welding system with dropping characteristic of submerged arc welding machine digitally preset on site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201889576U true CN201889576U (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205178224U Expired - Fee Related CN201889576U (en) | 2010-09-03 | 2010-09-03 | Automatic welding system with dropping characteristic of submerged arc welding machine digitally preset on site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201889576U (en) |
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2010
- 2010-09-03 CN CN2010205178224U patent/CN201889576U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20110903 |