CN104209634A - Wire-feeding speed regulating system - Google Patents
Wire-feeding speed regulating system Download PDFInfo
- Publication number
- CN104209634A CN104209634A CN201410425389.4A CN201410425389A CN104209634A CN 104209634 A CN104209634 A CN 104209634A CN 201410425389 A CN201410425389 A CN 201410425389A CN 104209634 A CN104209634 A CN 104209634A
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- CN
- China
- Prior art keywords
- speed
- wire
- feeding speed
- motor
- drive circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/124—Circuits or methods for feeding welding wire
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
The invention belongs to the technical field of welding, and particular relates to a wire-feeding speed regulating system. According to the wire-feeding speed regulating system, a control system is adopted, a DSP (Digital Signal Processor) chip serves as a core of the control system, a pulse frequency signal in accordance with a wire-feeding speed is obtained through the speed measure feedback of a grating and is compared with an input speed giving signal to obtain an operation result, the operation result is output through a PWM (Pulse-Width Modulation) circuit, a PWM pulse-width control signal of which the frequency is 20KHz is output to a bridge-type driving circuit, the rotating speed of a motor is timely adjusted to adjust the wire-feeding speed, the operations are cyclically performed in sequence, and therefore the stability of the wire-feeding speed is guaranteed. The wire-feeding speed regulating system has the advantages that matching of the wire-feeding speed and welding parameters is realized; when the wire-feeding speed is abnormal, the wire-feeding speed is timely adjusted, the effect of feeding wires stably is achieved, and the appearance forming of a welding seam is guaranteed.
Description
Technical field
The invention belongs to welding technology field, be specifically related to a kind of wire feed speed regulating system.
Background technology
In gas metal-arc welding (MIG/MAG), general electric welding machine usually adopts and regulates the size of electric current to regulate wire feed rate.In the middle of welding process, electric current can change in certain scope, and wire feed system carries out fine setting wire feed rate by the size detecting electric current, but when in welding process, when the foreign material such as generation splashing, greasy dirt, corrosion affect wire feed system, wire feed rate cannot adjust, when causing welding, easily cause weld defect, affect appearance of weld.
In view of this, the applicant provides a kind of wire feed speed regulating system, and this case produces thus.
Summary of the invention
The object of the present invention is to provide a kind of wire feed speed regulating system, in welding process, can feed back wire feeding speed rapidly, due to a variety of causes cause wire feed rate abnormal time, make speed adjustment in time.
For achieving the above object, concrete technical scheme of the present invention is: a kind of wire feed speed regulating system, comprises and controls power supply, speed preset device, dsp chip, wire welding power, bridge drive circuit, motor and test feedback grating composition;
Wherein, described dsp chip is connected with control power supply, speed preset device, test feedback grating respectively;
Described bridge drive circuit is connected with motor, and bridge drive circuit controls electric machine rotation;
Described wire welding power is connected with bridge drive circuit, and wire welding power is to wire feed power on circuitry;
Described motor is connected with speed measure feedback grating, by speed measure feedback Grating examinations motor speed frequency;
Before welding, Negotiation speed setter sets wire feed rate, and then start and control power supply and wire welding power, speed preset device input pulse frequency signal is to dsp chip, and dsp chip exports PWM by pre-set programs, gives bridge drive circuit signal;
In the middle of welding process, when wire feed rate changes, can by speed measure feedback grating feedback signal to dsp chip, both frequency signals of dsp chip Negotiation speed setter and speed measure feedback grating compare, carry out internal arithmetic, export PWM to bridge drive circuit, motor speed is regulated, thus reaches control wire feed rate.
Beneficial effect of the present invention: after have employed technique scheme, in welding process, achieves mating of wire feed rate and welding parameter, when wire feed rate is abnormal, adjusts wire feed rate in time, reach stable wire feed, ensured that the outward appearance of weld seam is shaping.
Accompanying drawing explanation
Fig. 1 is system hardware composition diagram of the present invention;
Fig. 2 is system program control flow chart of the present invention.
Detailed description of the invention
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation.
As shown in Figure 1, what the present invention disclosed is a kind of wire feed speed regulating system, and it comprises control power supply 1, speed preset device 2, dsp chip 3, wire welding power 4, bridge drive circuit 5, motor 6 and test feedback grating 7 and forms;
Wherein, described dsp chip 3 is connected with control power supply 1, speed preset device 2, test feedback grating 7 respectively;
Described bridge drive circuit 5 is connected with motor 6, and bridge drive circuit 5 controls motor 6 and rotates;
Described wire welding power 4 is connected with bridge drive circuit 5, and wire welding power 4 gives wire feed power on circuitry;
Described motor 6 is connected with speed measure feedback grating 7, detects motor 6 speed-frequency by speed measure feedback grating 7;
Before welding, Negotiation speed setter 2 sets wire feed rate, and then start and control power supply 1 and wire welding power 4, speed preset device 2 input pulse frequency signal is to dsp chip 3, dsp chip 3 exports PWM by pre-set programs, gives bridge drive circuit 5 signal;
In the middle of welding process, when wire feed rate changes, dsp chip 3 can be fed back signal to by speed measure feedback grating 7, both frequency signals of dsp chip 3 Negotiation speed setter 2 and speed measure feedback grating 7 compare, carry out internal arithmetic, export PWM to bridge drive circuit 5, motor 6 rotating speed is regulated, thus reaches control wire feed rate.
Shown in composition graphs 2, operation principle of the present invention is described: when electric welding machine starts, set given speed, send pulse duration frequency signal and carry out pre-set programs PWM output to dsp chip 3, control motor 6 by bridge drive circuit 5 to rotate, carry out wire feed, simultaneously, measured by speed measure feedback grating 7 pairs of motor speeds, speed-frequency signal is returned to dsp chip 3, compare with given speed frequency signal, whether there is velocity deviation, then PID arithmetic is carried out, operation result carries out PWM output, motor speed is adjusted by bridge drive circuit 5, then circulate successively, until motor speed is adjusted to the right place, realize the effect that wire feed rate is stable.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a wire feed speed regulating system, is characterized in that: comprise and control power supply (1), speed preset device (2), dsp chip (3), wire welding power (4), bridge drive circuit (5), motor (6) and test feedback grating (7) composition;
Wherein, described dsp chip (3) is connected with control power supply (1), speed preset device (2), test feedback grating (7) respectively;
Described bridge drive circuit (5) is connected with motor (6), and bridge drive circuit (5) controls motor (6) and rotates;
Described wire welding power (4) is connected with bridge drive circuit (5), and wire welding power (4) is to wire feed power on circuitry;
Described motor (6) is connected with speed measure feedback grating (7), detects motor (6) speed-frequency by speed measure feedback grating (7);
Before welding, Negotiation speed setter (2) sets wire feed rate, then start and control power supply (1) and wire welding power (4), speed preset device (2) input pulse frequency signal is to dsp chip (3), dsp chip (3) exports PWM by pre-set programs, gives bridge drive circuit (5) signal;
In the middle of welding process, when wire feed rate changes, dsp chip (3) can be fed back signal to by speed measure feedback grating (7), both frequency signals of dsp chip (3) Negotiation speed setter (2) and speed measure feedback grating (7) compare, carry out internal arithmetic, export PWM to bridge drive circuit (5), motor (6) rotating speed is regulated, thus reaches control wire feed rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425389.4A CN104209634B (en) | 2014-08-27 | 2014-08-27 | Wire-feeding speed regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425389.4A CN104209634B (en) | 2014-08-27 | 2014-08-27 | Wire-feeding speed regulating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104209634A true CN104209634A (en) | 2014-12-17 |
| CN104209634B CN104209634B (en) | 2017-04-26 |
Family
ID=52091759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410425389.4A Active CN104209634B (en) | 2014-08-27 | 2014-08-27 | Wire-feeding speed regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104209634B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425046A (en) * | 2016-11-29 | 2017-02-22 | 山东奥太电气有限公司 | Speed synchronization control method and device for gas metal arc welding double motor wire feeding system |
| CN113145990A (en) * | 2020-12-24 | 2021-07-23 | 上海宗镕电器有限公司 | Digital electric welding machine system integrated with multifunctional welding mode |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192833A (en) * | 1996-01-22 | 1997-07-29 | Matsushita Electric Ind Co Ltd | Consumable electrode arc welding machine |
| CN1634676A (en) * | 2005-01-13 | 2005-07-06 | 上海交通大学 | Full-digital speed change control method for wire feeding for submerged arc welding |
| EP1559496A1 (en) * | 2004-01-27 | 2005-08-03 | Lincoln Global, Inc. | MIG welding apparatus and method for controlling the power supply through selection of a wire feed speed |
| CN101814885A (en) * | 2010-05-12 | 2010-08-25 | 唐山松下产业机器有限公司 | Wire feed speed regulating system |
| CN202123308U (en) * | 2011-05-26 | 2012-01-25 | 深圳市富驰机电设备有限公司 | Control circuit of wire feed system of CO2 (carbon dioxide) welder |
| CN203124923U (en) * | 2013-02-26 | 2013-08-14 | 广州友田机电设备有限公司 | Wire feeding control system of welding machine |
| CN103920970A (en) * | 2014-04-03 | 2014-07-16 | 北京星航机电装备有限公司 | Welding wire speed control system |
-
2014
- 2014-08-27 CN CN201410425389.4A patent/CN104209634B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192833A (en) * | 1996-01-22 | 1997-07-29 | Matsushita Electric Ind Co Ltd | Consumable electrode arc welding machine |
| EP1559496A1 (en) * | 2004-01-27 | 2005-08-03 | Lincoln Global, Inc. | MIG welding apparatus and method for controlling the power supply through selection of a wire feed speed |
| CN1634676A (en) * | 2005-01-13 | 2005-07-06 | 上海交通大学 | Full-digital speed change control method for wire feeding for submerged arc welding |
| CN101814885A (en) * | 2010-05-12 | 2010-08-25 | 唐山松下产业机器有限公司 | Wire feed speed regulating system |
| CN202123308U (en) * | 2011-05-26 | 2012-01-25 | 深圳市富驰机电设备有限公司 | Control circuit of wire feed system of CO2 (carbon dioxide) welder |
| CN203124923U (en) * | 2013-02-26 | 2013-08-14 | 广州友田机电设备有限公司 | Wire feeding control system of welding machine |
| CN103920970A (en) * | 2014-04-03 | 2014-07-16 | 北京星航机电装备有限公司 | Welding wire speed control system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425046A (en) * | 2016-11-29 | 2017-02-22 | 山东奥太电气有限公司 | Speed synchronization control method and device for gas metal arc welding double motor wire feeding system |
| CN106425046B (en) * | 2016-11-29 | 2018-11-27 | 山东奥太电气有限公司 | The speed synchronizing control method and device of consumable electrode gas shield welding bi-motor wire feed system |
| CN113145990A (en) * | 2020-12-24 | 2021-07-23 | 上海宗镕电器有限公司 | Digital electric welding machine system integrated with multifunctional welding mode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104209634B (en) | 2017-04-26 |
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