CN202438767U - Automatic single-arc and double-wire full position welding synchronous coordinated control system - Google Patents
Automatic single-arc and double-wire full position welding synchronous coordinated control system Download PDFInfo
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- CN202438767U CN202438767U CN2012200641280U CN201220064128U CN202438767U CN 202438767 U CN202438767 U CN 202438767U CN 2012200641280 U CN2012200641280 U CN 2012200641280U CN 201220064128 U CN201220064128 U CN 201220064128U CN 202438767 U CN202438767 U CN 202438767U
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Abstract
The utility model discloses an automatic single-arc and double-wire full position welding synchronous coordinated control system and belongs to the technical field of oil-gas pipeline welding. The automatic single-arc and double-wire full position welding synchronous coordinated control system comprises a power supply unit, a local high-speed cooperative unit, two PWM (Pulse Width Modulation) units, two driving units and two execution mechanisms, wherein the power supply unit is respectively connected with the local high-speed cooperative unit, the two PWM units, the two driving units and the two execution mechanisms; the local high-speed cooperative unit is respectively connected with the two PWM units; the two PWM units are respectively connected with the two driving units; and the two driving units are respectively connected with the two execution mechanisms. According to the automatic single-arc and double-wire full position welding synchronous coordinated control system disclosed by the utility model, the wire feeding speed can be coordinately distributed and mutual influence between electric arc is eliminated; the impact between two welding wires is minimized by arc deviated blow; within the whole welding energy range, the arc is stable, the heat input amount is small and is easy to control, and thus optimal drop transfer can be obtained. The welding efficiency in per hour can be effectively improved and a control system and a welding clamp can be kept relatively simple.
Description
Technical field
The utility model relates to the oil and gas pipeline welding technology field, particularly a kind of single arc mariages all position automatic welding The synchronized Coordinative Control system.
Background technology
The automatic welder(welding machine) that uses in the oil and gas pipes construction both at home and abroad at present adopts the welding manner of single arc monofilament more, and this welding manner welding efficiency is lower.In order to improve the welding efficiency of oil and gas pipes, the method that adopts usually at present is that a plurality of welding torch are installed on single device, coordinates a plurality of welding torch and works simultaneously, improves the timeliness of welding.But, because influencing each other between the electric arc, so electric arc is unstable, and the fluctuation of arc length is comparatively violent, and it is more to splash, and the droplet transfer is not steady, and required control system and the weld jig relative complex, huge of this welding manner.
Summary of the invention
Low in order to solve the automatic welding efficiency of welding of the existing many welding torch of oil and gas pipes; Droplet transfer is not steady; And problem such as welding control system is complicated, weld jig is huge; The utility model provides a kind of single arc mariages all position automatic welding The synchronized Coordinative Control system; Said system comprises the collaborative at a high speed unit of power subsystem, local, two PWM modulating units, two driver elements and two executing agencies, and said power subsystem is connected with two executing agencies with the collaborative at a high speed unit of local, two PWM modulating units, two driver elements respectively, and the collaborative at a high speed unit of said local is connected with two PWM modulating units respectively; Said two PWM modulating units are connected with two driver elements respectively, and said two driver elements are connected with two executing agencies respectively.
The collaborative at a high speed unit of said local comprises first triode, second triode, metal-oxide-semiconductor and RC resonance circuit; The emitter stage of said first triode is connected with the colelctor electrode of second triode; The colelctor electrode of said first triode connects supply voltage, and the base stage of said first triode is connected with the emitter stage of second triode, and the base stage of said second triode is connected with outside PC control signal; The emitter stage of said first triode is connected with the input of RC resonance circuit; The output of said RC resonance circuit is connected with the grid of metal-oxide-semiconductor, and the source electrode of said metal-oxide-semiconductor connects supply voltage, the grounded drain of said metal-oxide-semiconductor.
The drain electrode of said metal-oxide-semiconductor is connected with the input of a phase inverter, and the output of said phase inverter is connected with a PWM modulating unit, and the drain electrode of said metal-oxide-semiconductor is connected with another PWM modulating unit.
The bridge circuit that said driver element is made up of four metal-oxide-semiconductors be used for the signal of said PWM modulating unit output is amplified, and the signal after will amplifying outputs to said executing agency.
Said executing agency comprises two wire feeding motors.
Said power subsystem comprises two power modules and a connecting terminal block, and the input of said power module is connected with connecting terminal block respectively with output.
The connected driver element of said PWM modulating unit is integrated into a circuit board.
The single arc mariages all position automatic welding The synchronized Coordinative Control system of the utility model can work in coordination with the distribution wire feed rate, and electric arc is not influenced each other; Arc blow makes the impact between the welding wire minimum; Arc stability in whole welding energy scope, the little and easy control of hot input quantity can obtain the best droplet transfer; Not only can improve the timeliness of welding effectively, but also can accomplish that control system and weld jig are simple relatively.
Description of drawings
Fig. 1 is the theory structure sketch map of the single arc mariages all position automatic welding The synchronized Coordinative Control system that provides of the utility model embodiment;
Fig. 2 is the local that provides of the utility model embodiment circuit theory diagrams of collaborative unit at a high speed;
Fig. 3 is the circuit theory diagrams of the driver element that provides of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model technical scheme is further described.
Referring to Fig. 1; The utility model embodiment provides a kind of single arc mariages all position automatic welding The synchronized Coordinative Control system, and this system comprises the collaborative at a high speed unit of power subsystem, local, PWM modulating unit 1, PWM modulating unit 2, driver element 1, driver element 2, executing agency 1 and executing agency 2.Power subsystem is connected with executing agency 2 with the collaborative at a high speed unit of local, PWM modulating unit 1, PWM modulating unit 2, driver element 1, driver element 2, executing agency 1 respectively, is used for to above-mentioned each unit and mechanism power supply being provided.The collaborative at a high speed unit of local is connected with PWM modulating unit 1, PWM modulating unit 2 respectively.PWM modulating unit 1 is connected with driver element 1, PWM modulating unit 2 is connected with driver element 2.Driver element 1 is connected with executing agency 1, and driver element 2 is connected with executing agency 2.
Referring to Fig. 2; The collaborative at a high speed unit of local comprises triode Q1, triode Q2, metal-oxide-semiconductor Q3 and RC resonance circuit; The emitter stage of triode Q1 is connected with the colelctor electrode of triode Q2 through resistance R 4; The colelctor electrode of triode Q1 connects supply voltage VCC through resistance R 3, RP, and the base stage of triode Q1 is connected with the emitter stage of triode Q2 through resistance R 2, and the base stage of triode Q2 is connected with outside PC control signal; The emitter stage of triode Q1 is connected with the input of the RC resonance circuit of being made up of R5 and C1; The output of RC resonance circuit is connected with the grid of metal-oxide-semiconductor Q3, and the source electrode of metal-oxide-semiconductor Q3 meets supply voltage VCC through resistance R 6, and the drain electrode of metal-oxide-semiconductor Q3 is through resistance R 7 ground connection.The drain electrode of metal-oxide-semiconductor Q3 is connected with the input of a phase inverter through capacitor C 2, and the output U1 of phase inverter is connected with PWM modulating unit 1, and the drain electrode of metal-oxide-semiconductor Q3 is connected with PWM modulating unit 2 as output U2.In concrete the application, the collaborative at a high speed unit of local is the main body with the IC555 chip, receives the control signal that outside host computer sends; After internal arithmetic; Send the pulse signal of different frequency respectively and give the PWM modulating unit 1 and PWM modulating unit 2 that TD340 is a main body, after two-way PWM modulating unit receives the pulse signal of different frequency respectively, behind circuit computing; Output pwm signal is to executing agency, and executing agency carries out corresponding actions after receiving signal.
Referring to Fig. 3, the bridge circuit that driver element is made up of four metal-oxide-semiconductors be used for the signal of PWM modulating unit output is amplified, and the signal after will amplifying outputs to executing agency.Executing agency comprises two wire-feed motor of giving source of welding current wire feed.Power subsystem comprises two power modules and a connecting terminal block, and the input of power module is connected with connecting terminal block respectively with output.The input voltage of power module is 24V, and output voltage is respectively 5V and 12V, and 24V, 12V, 5V all insert terminal row, works in coordination with the power supply of unit, PWM modulating unit and driver element at a high speed as local.
In the present embodiment, the local two-way output U1 and the U2 of collaborative unit at a high speed is a pair of inversion signal.The connected driver element of PWM modulating unit is integrated into a circuit board.The input signal of PWM modulating unit comprises two partly, is respectively from local and works in coordination with the pulse signal of unit and the rotating control signal of host computer at a high speed; After pulse signal was input to the PWM modulating unit, getting into TD340 was the pwm signal modulation circuit of main body, produces corresponding pwm signal, exports driver element to, and driving execution mechanism moves with corresponding speed; From the rotating control signal of host computer, being input to TD340 is the signal modulation circuit of main body, in order to the direction of control executing agency action.
The operation principle of the single arc mariages all position automatic welding The synchronized Coordinative Control system of present embodiment is: the system standby state; After the manual setting control signal; Host computer inner setting program provides control signal to the collaborative at a high speed unit of local through computing, and control signal is the analog voltage signal of 0～10V; After the collaborative at a high speed unit of local receives control signal; Two rp pulse frequency signals of control PWM modulating unit output, be embodied in: according to the difference of input voltage, output U2 exports corresponding pulse duration frequency signal; Input as PWM modulating unit 2; Output U2 connects a phase inverter with the pulse duration frequency signal anti-phase simultaneously, as another road output U1, inputs to PWM modulating unit 1; Two anti-phase pulse width signals amplify through the driver element computing, export executing agency respectively to, the wire feed rate of two wire-feed motor of control; Obtain corresponding power supply coupling simultaneously, promptly first wire-feed motor is operated in the base value signal phase, and wire feed rate is slow relatively; Welding current is less, and second wire-feed motor is operated in the pulse signal stage, and wire feed rate is very fast relatively; Welding current is bigger; Through the duty of two wire-feed motor of control, make the droplet transfer that a phase difference of 180 degree arranged like this, obtain perfect particle transfer between the two root bead silks.
The single arc mariages all position automatic welding The synchronized Coordinative Control system of present embodiment can work in coordination with the distribution wire feed rate, and electric arc is not influenced each other; Arc blow makes the impact between the welding wire minimum; Arc stability in whole welding energy scope, the little and easy control of hot input quantity can obtain the best droplet transfer; Not only can improve the timeliness of welding effectively, but also can accomplish that control system and weld jig are simple relatively.
Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. single arc mariages all position automatic welding The synchronized Coordinative Control system; It is characterized in that; Said system comprises the collaborative at a high speed unit of power subsystem, local, two PWM modulating units, two driver elements and two executing agencies; Said power subsystem is connected with two executing agencies with the collaborative at a high speed unit of local, two PWM modulating units, two driver elements respectively; The collaborative at a high speed unit of said local is connected with two PWM modulating units respectively, and said two PWM modulating units are connected with two driver elements respectively, and said two driver elements are connected with two executing agencies respectively.
2. single arc mariages all position automatic welding The synchronized Coordinative Control as claimed in claim 1 system; It is characterized in that; The collaborative at a high speed unit of said local comprises first triode, second triode, metal-oxide-semiconductor and RC resonance circuit, and the emitter stage of said first triode is connected with the colelctor electrode of second triode, and the colelctor electrode of said first triode connects supply voltage; The base stage of said first triode is connected with the emitter stage of second triode; The base stage of said second triode is connected with outside PC control signal, and the emitter stage of said first triode is connected with the input of RC resonance circuit, and the output of said RC resonance circuit is connected with the grid of metal-oxide-semiconductor; The source electrode of said metal-oxide-semiconductor connects supply voltage, the grounded drain of said metal-oxide-semiconductor.
3. single arc mariages all position automatic welding The synchronized Coordinative Control as claimed in claim 2 system; It is characterized in that; The drain electrode of said metal-oxide-semiconductor is connected with the input of a phase inverter; The output of said phase inverter is connected with a PWM modulating unit, and the drain electrode of said metal-oxide-semiconductor is connected with another PWM modulating unit.
4. single arc mariages all position automatic welding The synchronized Coordinative Control as claimed in claim 1 system; It is characterized in that; The bridge circuit that said driver element is made up of four metal-oxide-semiconductors; Be used for the signal of said PWM modulating unit output is amplified, and the signal after will amplifying outputs to said executing agency.
5. single arc mariages all position automatic welding The synchronized Coordinative Control as claimed in claim 1 system is characterized in that said executing agency comprises two wire feeding motors.
6. single arc mariages all position automatic welding The synchronized Coordinative Control as claimed in claim 1 system; It is characterized in that; Said power subsystem comprises two power modules and a connecting terminal block, and the input of said power module is connected with connecting terminal block respectively with output.
7. single arc mariages all position automatic welding The synchronized Coordinative Control as claimed in claim 1 system is characterized in that the connected driver element of said PWM modulating unit is integrated into a circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200641280U CN202438767U (en) | 2012-02-23 | 2012-02-23 | Automatic single-arc and double-wire full position welding synchronous coordinated control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200641280U CN202438767U (en) | 2012-02-23 | 2012-02-23 | Automatic single-arc and double-wire full position welding synchronous coordinated control system |
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| CN202438767U true CN202438767U (en) | 2012-09-19 |
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| CN2012200641280U Expired - Fee Related CN202438767U (en) | 2012-02-23 | 2012-02-23 | Automatic single-arc and double-wire full position welding synchronous coordinated control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528226A (en) * | 2012-02-23 | 2012-07-04 | 中国石油天然气集团公司 | Single-arc twin-wire full-position automatic welding synchronous coordination control system |
-
2012
- 2012-02-23 CN CN2012200641280U patent/CN202438767U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528226A (en) * | 2012-02-23 | 2012-07-04 | 中国石油天然气集团公司 | Single-arc twin-wire full-position automatic welding synchronous coordination control system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170301 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: China National Petroleum Corporation Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Address before: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee before: China National Petroleum Corporation Patentee before: China Petroleum and Natural Gas Pipeline Bureau |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20210223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |