CN1971459A - Comprehensive automatic control system for welding process of high-frequency welded pipe - Google Patents
Comprehensive automatic control system for welding process of high-frequency welded pipe Download PDFInfo
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- CN1971459A CN1971459A CNA2006101022003A CN200610102200A CN1971459A CN 1971459 A CN1971459 A CN 1971459A CN A2006101022003 A CNA2006101022003 A CN A2006101022003A CN 200610102200 A CN200610102200 A CN 200610102200A CN 1971459 A CN1971459 A CN 1971459A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to a high frequency welding complex automatic control system that comprises thermodetector which detects the welding temperature, pressure sensing device which detects the compressional force, velometer which detects the welding speed, steel band thickness meter, current/voltage transmitter, high-speed light-spacer A/D plate, industrial computer equipped with fuzzy self-adaptive algorithm which possesses hierarchy, high-speed light-spacer D/A plate, high frequency machine. The effect of the invention is that the structure is simple and the cost is low. The industrial computer control system equipped with fuzzy self-adaptive algorithm which possesses hierarchy is adopted, the control precision is increased, and the welding quality is improved.
Description
Technical field
The present invention relates to a kind of comprehensive automatic control system for welding process of high-frequency welded pipe, belong to the welded tube welding technology field.
Background technology
Chinese patent has separated a kind of " ratio-frequency welded tube welding automaton " (notification number: CN20301280U), its technical scheme is to adopt some executive components and relay, the usual manner of pressing circuit connects, form the welding automatic control system, and with scrape the burr system automatically, control relay of oscillatory system and oscillating electron pipe constitute the welding automaton.Above-mentioned some executive components can be two fault indicators and a sensor, and they and pipe come in contact, and the plumber does by relay control oscillating electron; Promptly according to activation signal, being switched on or switched off of oscillating electron management and control system high frequency electric source, thus reach the purpose of automatic control welding.Automatically scraping the burr system is made up of relay, burr cutter, operation valve.
Because welding pipe welding process is that a retardation time is little, the non-linear process that response speed is fast, obvious above-mentioned patent can not satisfy the control requirement of quick response nonlinear system.
The nineties in 20th century, China was from the external welded pipe product line of having introduced, because import equipment costs an arm and a leg, the maintenance cost height is so can not get applying.
Summary of the invention
Technical matters to be solved by this invention provides a kind of simple in structure, cost is low, control accuracy is high, welding quality is good comprehensive automatic control system for welding process of high-frequency welded pipe.
The technical solution adopted for the present invention to solve the technical problems:
The present invention includes the temperature monitor that detects welding temperature, the pressure transducer that detects extruding force, the speed measuring instrumentation that detects speed of welding, thickness of strips detector, current/voltage transmitter, high-speed light every A/D plate, the industrial computer that the fuzzy adaptive algorithm with hierarchy is installed, high-speed light every D/A plate, High-frequency machine; The output termination high-speed light of temperature monitor is every the input end of A/D plate, the output terminal of pressure transducer, speed measuring instrumentation, thickness of strips detector connects the input end of high-speed light every the A/D plate through the current/voltage transmitter respectively, high-speed light is connected with industrial computer by bus every the A/D plate, and the output terminal of industrial computer connects SCR pressure regulator in the High-frequency machine through high-speed light every the D/A plate; High-frequency machine comprises SCR pressure regulator and high frequency oscillating apparatus, and the SCR pressure regulator is the high frequency oscillating apparatus power supply.
The present invention also includes the extruding force adjusting mechanism, the extruding force adjusting mechanism is made up of SCR pressure regulator, jet tube electrohydraulic servo valve, oil motor, compression roller latch mechanism, the SCR output voltage regulator connects the magnet spool that is positioned at the jet pipe left side, the jet tube electrohydraulic servo valve is connected with oil motor by pipeline, and the output shaft of oil motor is connected with tightening screw by gear set.
The invention has the beneficial effects as follows simple in structure, cost is lower.Owing to adopted the Industrial Computer Control system that the fuzzy self-adaption control algolithm with hierarchy is installed, improved control accuracy, thereby improved welding quality.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the extruding force adjusting mechanism synoptic diagram of embodiment 2.
Fig. 3 is the control principle schematic block diagram of embodiment 1.
Fig. 4,5 is the control principle schematic block diagram of embodiment 2.
In Fig. 2,1. fuel tank, 2. oil pump, 3. filtrator, 4. jet tube electrohydraulic servo valve, 5. gear set, 6. oil motor, 7. guiding valve, 8. jet pipe, 9. tensimeter, 10. ball valve, 11. surplus valves, 12. springs, 13. electromagnet, 14.SCR pressure regulator.
Embodiment
Embodiment 1 (referring to Fig. 1,3):
The control system of embodiment 1 include the temperature monitor that detects welding temperature, the pressure transducer that detects extruding force, the speed measuring instrumentation that detects speed of welding, thickness of strips detector, current/voltage transmitter, high-speed light every A/D plate, the industrial computer that the fuzzy adaptive algorithm with hierarchy is installed, high-speed light every D/A plate, High-frequency machine; The output termination high-speed light of temperature monitor is every the input end of A/D plate, the output terminal of pressure transducer, speed measuring instrumentation, thickness of strips detector connects the input end of high-speed light every the A/D plate through the current/voltage transmitter respectively, high-speed light is connected with industrial computer by bus every the A/D plate, and the output terminal of industrial computer connects SCR pressure regulator in the High-frequency machine through high-speed light every the D/A plate; High-frequency machine comprises SCR pressure regulator and high frequency oscillating apparatus, and the SCR pressure regulator is the high frequency oscillating apparatus power supply.
Described temperature monitor adopts the infrared color comparison temperature measurement of optical fiber system, and the weld seam heating zone was located in the middle of the infrared color comparison temperature measurement of optical fiber system was installed in two compression rollers, apart from heating zone 20cm～50cm.
Described pressure transducer adopts the semiconductor pressure resistance type detection system, and the semiconductor pressure resistance type detection system is installed on the compression roller base tightening screw.
Described speed detector adopts the accurate speed measuring instrumentation of SZ type, and the accurate speed measuring instrumentation of SZ type is installed in the back of sizing unit.
Described thickness of strips detector adopts TCH_ isotope thickness measuring system, and TCH_ isotope thickness measuring system is installed in the front of shaping machine set.
The control principle of embodiment 1 as shown in Figure 3, it is the single output feedforward of a kind of many inputs---the comprehensive automatic control scheme (see figure 3) of reaction type welding process, this scheme adopts the power temperature control method to realize the automatic control of welding temperature T, also the high-frequency current I (with the proportional relation of High-frequency machine output power) that is about to High-frequency machine is as controlled quentity controlled variable, to realize the automatic control of welding temperature T; While as interference volume, adopts the fluctuation of welding extruding force P, welding speed V, belt steel thickness S feed forward control method to compensate it to welding the influence of warm T.
Embodiment 2 (referring to Fig. 1,2,4,5):
Embodiment 2 has adopted extruding force adjusting mechanism (seeing Fig. 1,2) as different from Example 1, the extruding force adjusting mechanism is made up of SCR pressure regulator 14, jet tube electrohydraulic servo valve 4, oil motor 6, compression roller latch mechanism, SCR pressure regulator 14 output terminations are positioned at the coil of the electromagnet 13 in jet pipe 8 left sides, jet tube electrohydraulic servo valve 4 is connected with oil motor 6 by pipeline, and the output shaft of oil motor 6 is connected with tightening screw by gear set 5.
The control principle of embodiment 2 is shown in Fig. 4,5, and it is the comprehensive automatic control scheme of a kind of extruding force independence closed loop welding process (seeing Fig. 4,5):
(1) welding temperature T adopts the power temperature control method to realize control automatically, adopts feed forward control method compensation welding speed V simultaneously, and the fluctuation of belt steel thickness S is to the influence of welding temperature T.
(2) welding extruding force P realizes control automatically by welding extruding force adjusting mechanism (see figure 2).This adjusting mechanism is on the basis of existing adjusting gear, adopts the jet tube electrohydraulic servo valve control oil motor by the power supply of SCR pressure regulator, realizes the adjusting of extruding force by the method for gear set transmission adjustment tightening screw.Promptly the input dc power by the control servo-valve flows just scalable welding extruding force P.
The principle of work of extruding force adjusting mechanism following (referring to Fig. 2):
When the spring force of the electromagnetic force that produces when the DC current of the silicon-controlled voltage regulation device output coil by electromagnet 13 and the spring 12 on jet pipe 8 right sides balances each other, jet pipe 8 is positioned at central authorities, the oil pressure that is mapped to guiding valve 7 two ends equates that oil motor 6 is motionless, and the welding extruding force remains unchanged; When DC current reduces, jet pipe 8 left avertences, guiding valve 7 moves to right, and oil motor 6 driven gear groups 5 strengthen two compression rollers at interval, and the welding extruding force reduces; Otherwise, the welding extruding force is increased.Therefore by the input dc power stream of control servo-valve, just can control the size of welding extruding force.
Claims (6)
1, comprehensive automatic control system for welding process of high-frequency welded pipe, it is characterized in that it include the temperature monitor that detects welding temperature, the pressure transducer that detects extruding force, the speed measuring instrumentation that detects speed of welding, thickness of strips detector, current/voltage transmitter, high-speed light every A/D plate, the industrial computer that the fuzzy adaptive algorithm with hierarchy is installed, high-speed light every D/A plate, High-frequency machine; The output termination high-speed light of temperature monitor is every the input end of A/D plate, the output terminal of pressure transducer, speed measuring instrumentation, thickness of strips detector connects the input end of high-speed light every the A/D plate through the current/voltage transmitter respectively, high-speed light is connected with industrial computer by bus every the A/D plate, and the output terminal of industrial computer connects SCR pressure regulator in the High-frequency machine through high-speed light every the D/A plate; High-frequency machine comprises SCR pressure regulator and high frequency oscillating apparatus, and the SCR pressure regulator is the high frequency oscillating apparatus power supply.
2. comprehensive automatic control system for welding process of high-frequency welded pipe according to claim 1, it is characterized in that it also includes the extruding force adjusting mechanism, the extruding force adjusting mechanism is made up of SCR pressure regulator (14), jet tube electrohydraulic servo valve (4), oil motor (6), compression roller latch mechanism, SCR pressure regulator (14) output termination is positioned at the coil of the electromagnet (13) in jet pipe (8) left side, jet tube electrohydraulic servo valve (4) is connected with oil motor (6) by pipeline, and the output shaft of oil motor (6) is connected with tightening screw by gear set (5).
3. according to claim 1 or 2 described comprehensive automatic control system for welding process of high-frequency welded pipe, it is characterized in that described temperature monitor adopts the infrared color comparison temperature measurement of optical fiber system, the weld seam heating zone was located in the middle of the infrared color comparison temperature measurement of optical fiber system was installed in two compression rollers, apart from heating zone 20cm～50cm.
4. comprehensive automatic control system for welding process of high-frequency welded pipe according to claim 3 is characterized in that described pressure transducer adopts the semiconductor pressure resistance type detection system, and the semiconductor pressure resistance type detection system is installed on the compression roller base tightening screw.
5. comprehensive automatic control system for welding process of high-frequency welded pipe according to claim 4 is characterized in that described speed detector adopts the accurate speed measuring instrumentation of SZ type, and the accurate speed measuring instrumentation of SZ type is installed in the back of sizing unit.
6. comprehensive automatic control system for welding process of high-frequency welded pipe according to claim 5 is characterized in that described thickness of strips detector adopts TCH-isotope thickness measuring system, and TCH-isotope thickness measuring system is installed in the front of shaping machine set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101022003A CN1971459A (en) | 2006-11-29 | 2006-11-29 | Comprehensive automatic control system for welding process of high-frequency welded pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101022003A CN1971459A (en) | 2006-11-29 | 2006-11-29 | Comprehensive automatic control system for welding process of high-frequency welded pipe |
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| CN1971459A true CN1971459A (en) | 2007-05-30 |
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| CNA2006101022003A Pending CN1971459A (en) | 2006-11-29 | 2006-11-29 | Comprehensive automatic control system for welding process of high-frequency welded pipe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733568B (en) * | 2009-12-09 | 2012-02-01 | 西安交通大学 | Dynamic measurement-based continuous welding method for reducing axial deformation generated by welding large thick-wall pipeline |
| CN102974933A (en) * | 2012-11-26 | 2013-03-20 | 青岛同日机械电子有限公司 | Automatic temperature measuring and wire feeding high-frequency pipeline welding machine |
| CN101676826B (en) * | 2008-09-19 | 2013-04-10 | 北京石油化工学院 | Coordination control system of double metal spiral compound pipe molding and welding |
| CN105499337A (en) * | 2015-11-13 | 2016-04-20 | 中冶赛迪工程技术股份有限公司 | High-frequency welded tube molding control system and method |
| WO2016124818A1 (en) * | 2015-02-06 | 2016-08-11 | Lappeenrannan Teknillinen Yliopisto | Welding system with adaptive algorithm |
| CN106925878A (en) * | 2017-04-18 | 2017-07-07 | 苏州宏创高频加热设备有限公司 | A kind of automatic control system of high-frequency induction welder |
| CN108381026A (en) * | 2018-05-09 | 2018-08-10 | 北京航天东方科技发展有限公司 | A kind of electron tube high frequency soldering and sealing practical circuit |
-
2006
- 2006-11-29 CN CNA2006101022003A patent/CN1971459A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676826B (en) * | 2008-09-19 | 2013-04-10 | 北京石油化工学院 | Coordination control system of double metal spiral compound pipe molding and welding |
| CN101733568B (en) * | 2009-12-09 | 2012-02-01 | 西安交通大学 | Dynamic measurement-based continuous welding method for reducing axial deformation generated by welding large thick-wall pipeline |
| CN102974933A (en) * | 2012-11-26 | 2013-03-20 | 青岛同日机械电子有限公司 | Automatic temperature measuring and wire feeding high-frequency pipeline welding machine |
| WO2016124818A1 (en) * | 2015-02-06 | 2016-08-11 | Lappeenrannan Teknillinen Yliopisto | Welding system with adaptive algorithm |
| CN107427951A (en) * | 2015-02-06 | 2017-12-01 | 拉普兰塔理工大学 | Utilize the welding system of adaptive algorithm |
| CN105499337A (en) * | 2015-11-13 | 2016-04-20 | 中冶赛迪工程技术股份有限公司 | High-frequency welded tube molding control system and method |
| CN105499337B (en) * | 2015-11-13 | 2018-05-15 | 中冶赛迪工程技术股份有限公司 | A kind of high frequency welding pipe molding control system and method |
| CN106925878A (en) * | 2017-04-18 | 2017-07-07 | 苏州宏创高频加热设备有限公司 | A kind of automatic control system of high-frequency induction welder |
| WO2018192203A1 (en) * | 2017-04-18 | 2018-10-25 | 苏州宏创高频加热设备有限公司 | Automatic control system for high-frequency welding machine |
| CN108381026A (en) * | 2018-05-09 | 2018-08-10 | 北京航天东方科技发展有限公司 | A kind of electron tube high frequency soldering and sealing practical circuit |
| CN108381026B (en) * | 2018-05-09 | 2023-11-03 | 北京航天东方科技发展有限公司 | High-frequency sealing practical circuit of electronic tube |
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