CN1872479A - Generation device of rotating magnetic field in use for controlling welding arc - Google Patents
Generation device of rotating magnetic field in use for controlling welding arc Download PDFInfo
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- CN1872479A CN1872479A CN 200610089510 CN200610089510A CN1872479A CN 1872479 A CN1872479 A CN 1872479A CN 200610089510 CN200610089510 CN 200610089510 CN 200610089510 A CN200610089510 A CN 200610089510A CN 1872479 A CN1872479 A CN 1872479A
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- magnetic head
- top cover
- magnetic
- inwall
- wall
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- 238000003466 welding Methods 0.000 title claims abstract description 43
- 229920001342 Bakelite® Polymers 0.000 claims abstract description 34
- 239000004637 bakelite Substances 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 abstract 2
- 230000005284 excitation Effects 0.000 description 19
- 238000010891 electric arc Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052770 Uranium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Arc Welding Control (AREA)
Abstract
A rotational magnetic field generator for controlling the welding arc is composed of a magnetic head unit with top cover, bottom cover, internal wall and external wall, a bakelite ring A with internal screw having one end for pressing said top cover onto the convex ring on internal well and another end for connecting the welding gun, another bakelite ring B for connecting said top cover with said external wall and said bottom cover with said internal wall, 6 iron cores with exciting winding and connected to top cover, and an exciting power supply connected with 6 exciting windings.
Description
Technical field
The present invention relates to a kind of generation device of rotating magnetic field that is used to control welding arc, this device is applied to welding technology field.
Technical background
Magnetic field control solder technology is by externally-applied magnetic field control welding arc, influences droplet transfer and welding pool, and then the control welding process, improves welding procedure.The existing field form that is used for solder technology mainly contains transverse magnetic field, longitudinal magnetic field and sharp magnetic field etc. both at home and abroad, but these several field forms all are static, promptly all are the motions of controlling welding arc by static magnetic field.By a large amount of evidences, these several field forms can be controlled welding arc preferably, control the welding arc radius of turn by regulating the magnetic field size, influence the droplet transfer process, improve appearance of weld.
Although existing static magnetic field form can reach the size of regulating magnetic field by regulating exciting current, and then realization is to the control of the radius of turn of welding arc, but the speed of electric arc can only change by the size of regulating exciting current, and the speed adjustable range is little, can not realize independent control to the electric arc speed, this makes electric Arc Motion be subjected to severely restricts, has big limitation to improving welding procedure.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective of existing static magnetic field, provide a kind of rotating excitation field of utilizing dynamic change to control the generation device of rotating magnetic field of welding arc, this device drives the rotation of welding arc by dynamic rotating excitation field, by exciting current inversion frequency of regulating field power supply and speed and the radius of turn that the exciting current size is controlled welding arc, and then the motion state of change welding arc, obtain different arc shapes, can be by the welding procedure under the effect of this device research rotating excitation field.
In order to realize above-mentioned functions, the present invention has taked following technical scheme.This device mainly includes welding gun 15, also include magnetic head top cover 2, magnetic head bottom 6, magnetic head outer wall 4, magnetic head inwall 1, the magnet exciting coil 5 on the magnetic column iron core 3, connect bakelite circle 14, wherein, connect bakelite circle 14 and have internal thread, one side screw thread is connected with magnetic head inwall 1, the opposite side screw thread is connected with welding gun 15, and welding gun 15 is inserted in the cavity at magnetic head inwall 1 center; Magnetic head top cover 2 is connected with magnetic head inwall 1, and magnetic head top cover 2 is connected with magnetic head outer wall 4 by annular bakelite circle 12; Magnetic head bottom 6 is connected with magnetic head inwall 1, magnetic head enclosing cover 2 respectively; Six screwed holes 18 along the circumferential direction evenly distribute on the magnetic head top cover 2, be used for installing six magnetic column iron cores 3 that are wound with magnet exciting coil 5, they are in the cavity that is surrounded by magnetic head top cover 2, magnetic head bottom 6, magnetic head inwall 1, magnetic head outer wall 4, annular bakelite circle 12; Magnet exciting coil 5 is drawn with field power supply 17 by the through hole on the bakelite circle 12 that goes in ring and is connected, and has avoided magnet exciting coil 5 and 2 short circuits of magnetic head top cover.
Described magnetic head top cover 2 is provided with water swivel 13, be connected with outer tank by water swivel 13, cooling water is circulated in the cavity of being made up of magnetic head top cover 2, magnetic head bottom 6, magnetic head inwall 1, magnetic head outer wall 4, annular bakelite circle 12, six magnetic post iron cores 3 that are wound with magnet exciting coil 5 are immersed in the recirculated cooling water, make it be in normal working temperature assurance excitation and normally carry out.
The cylindrical of magnetic head top cover 2 has identical gradient with the inwall of belt bakelite circle 12, magnetic head outer wall 4 has identical gradient equally with the outer wall of annular bakelite circle 12, adopts interference fit that the inwall of magnetic head top cover 2 and annular bakelite circle 12, magnetic head outer wall 4 are closely linked together with the outer wall of annular bakelite circle 12.
All adopted sealing rubber ring 11 to seal between magnetic head inwall 1 and magnetic head top cover 2, magnetic head inwall 1 and magnetic head bottom 6, magnetic head outer wall 4 and the magnetic head bottom 6, guaranteed that seepage does not take place cooling water in the magnetic head.
Described field power supply 17 provides the exciting current of three-phase list triple time form, and exciting current inversion frequency and exciting current size can be regulated separately.
The characteristics of miniaturization have been given prominence in the global design of magnetic head, and magnetic head external diameter scope is 60mm-78mm, so just magnetic head can be entered in the less space and weld, and use to adapt to various engineerings.
Operation principle of the present invention: utilize the magnetic field of dynamic change to control the motion of welding arc, promptly the rotating excitation field that can regulate by a speed and field intensity size drives the electric arc rotation, to realize the adjusting to the speed and the radius of turn of electric arc.Accompanying drawing 1 is a rotating excitation field excitation unit schematic diagram, three couples of magnetic column iron core: U, U ', V, V ', W, W ' are evenly distributed on the same circumference, on the magnetic column iron core, be wound with magnet exciting coil, be connected with the exciting current of three-phase list triple time form to magnet exciting coil, several to producing the rotating excitation field that needs in the space that magnet exciting coil surrounded.The process that Fig. 2 produces for rotating excitation field, wherein (a) and (b), (c), (d), (e), (f), (g) represent magnetic field each magnetic direction schematic diagram constantly in a swing circle respectively, for example (a) expression when electric current from U flow to, during U ' outflow, the magnetic direction definite according to right-hand screw rule, expression is next when constantly arriving and (b), electric current switches, from V flow to, V ' outflow, correspondingly magnetic direction has turned clockwise 60 °, and the like, when 360 ° of exciting current phase place variations, magnetic direction also changes 360 ° just.This shows that the rotating excitation field that this device produces and the phase place of exciting current change synchronously, that is to say can be by changing the speed that the exciting current inversion frequency just can change rotating excitation field.
Dynamic rotating excitation field by the generation of this device, the speed in this magnetic field can change by regulating the exciting current inversion frequency, the field intensity size can change by the size of regulating exciting current, the speed of welding arc and radius of turn can change along with the size of exciting current inversion frequency and exciting current and change under the effect of this rotating excitation field, thereby obtain different arc shapes, more effective control welding arc motion improves welding procedure.
Description of drawings
Fig. 1 schematic diagram of the present invention.
Fig. 2 rotating excitation field production process schematic diagram.
Fig. 3 structural representation of the present invention.
Fig. 4 magnetic head top cover of the present invention schematic diagram.
Fig. 5 magnetic head top cover of the present invention A-A is to cutaway view.
The arc shape that high-speed camera was taken when Fig. 6 magnetic field speed was 50Hz.
The arc shape that high-speed camera was taken when Fig. 7 magnetic field speed was 400Hz.
The arc shape that high-speed camera was taken when Fig. 8 exciting current was 3A.
The arc shape that high-speed camera was taken when Fig. 9 exciting current was 4A.
Among the figure: 1, magnetic head inwall, 2, the magnetic head top cover, 3, the magnetic column iron core, 4, the magnetic head outer wall, 5, magnet exciting coil, 6, the magnetic head bottom, 7, locking nut, 8, tungsten electrode, 9, the water-cooled copper anode, 10, electric arc, 11, sealing rubber ring, 12, the bakelite circle that goes in ring, 13, water swivel, 14, connect the bakelite circle, 15, welding gun, 16, the source of welding current, 17, field power supply, 18, the magnetic column iron core installs screwed hole, 19 water swivels are installed tapped through hole.
The specific embodiment
The specific embodiment of the present invention is specifically referring to Fig. 3～Fig. 5, present embodiment mainly includes welding gun 15, magnetic head top cover 2, magnetic head bottom 6, magnetic head outer wall 4, magnetic head inwall 1, the magnet exciting coil 5 on the magnetic column iron core 3, connects bakelite circle 14, wherein, connect bakelite circle 14 and have internal thread, one side screw thread is connected with magnetic head inwall 1, magnetic head top cover 2 is pressed on the exterior boss of magnetic head inwall 1, the opposite side screw thread is connected with welding gun 15, and welding gun 15 is inserted in the cavity at magnetic head inwall 1 center; Magnetic head top cover 2 is connected with magnetic head outer wall 4 by annular bakelite circle 12; Magnetic head bottom 6 is connected with magnetic head inwall 1 by locking nut 7; Six screwed holes 18 along the circumferential direction evenly distribute on the magnetic head top cover, be used for installing six magnetic column iron cores 3 that are wound with magnet exciting coil 5, they are in the cavity that is surrounded by magnetic head top cover 2, magnetic head bottom 6, magnetic head inwall 1, magnetic head outer wall 4, annular bakelite circle 12; Magnet exciting coil 5 is drawn with field power supply 17 by the through hole on the bakelite circle 12 that goes in ring and is connected, and has avoided magnet exciting coil 5 and 2 short circuits of magnetic head top cover.
Magnetic head top cover 2 is provided with water swivel 13, be connected with outer tank by water swivel 13, cooling water is circulated in the cavity of being made up of magnetic head top cover 2, magnetic head bottom 6, magnetic head inwall 1, magnetic head outer wall 4, annular bakelite circle 12, six magnetic post iron cores 3 that are wound with magnet exciting coil 5 are immersed in the recirculated cooling water, make it be in normal working temperature assurance excitation and normally carry out.
The cylindrical of magnetic head top cover 2 has identical gradient with the inwall of belt bakelite circle 12, magnetic head outer wall 4 has identical gradient equally with the outer wall of annular bakelite circle 12, adopts interference fit that the inwall of magnetic head top cover 2 and annular bakelite circle 12, magnetic head outer wall 4 are closely linked together with the outer wall of annular bakelite circle 12.
All adopted sealing rubber ring 11 to seal between magnetic head inwall 1 and magnetic head top cover 2, magnetic head inwall 1 and magnetic head bottom 6, magnetic head outer wall 4 and the magnetic head bottom 6, guaranteed that seepage does not take place the cooling water in the magnetic head.
Concrete structure of the present invention is referring to Fig. 3, adopt six magnet exciting coils 5 that have magnetic column iron core 3 as excitation unit, the material of magnetic column iron core 3 is the a3 steel, it is the copper conductor of 8mm that magnet exciting coil adopts diameter, and the three-phase list triple time form exciting current that external field power supply 17 output exciting current inversion frequencies and exciting current size can be regulated respectively carries out excitation to the magnet exciting coil 5 that has magnetic column iron core 3.Through the gaussmeter actual measurement, the magnetic field and the magnetic field shown in Fig. 2 of adopting this excitation mode to produce are in full accord, and the speed in magnetic field and magnetic field size adjustment are functional.
This device is installed according to mode shown in Figure 3, and adopted the TIG welding to test, observe the control action of rotating excitation field electric arc by high-speed camera.
Experimental condition: it is 82%Ar+18%CO that welding current 30A, exciting current 2-5A, magnetic field speed 50-600Hz, tungsten electrode 8 diameter 1.2mm, arc length 7mm, straight polarity direct current, anode adopt water-cooled copper 9, protective gas composition proportion
2, gas flow is 20L/min.
Test results and analysis
1. exciting current 5A changes the speed in magnetic field, keeps other test parameters constant, adopts high-speed camera to take arc shape when the magnetic field speed is respectively 50Hz and 400Hz, specifically referring to Fig. 6, Fig. 7.
Comparison diagram 6 and Fig. 7 are as can be seen, keep exciting current constant, when the magnetic field speed increases, the speed of electric arc increases, by the interpretation of result of many groups high-speed camera as can be known: the speed of electric arc and the speed in magnetic field are in full accord, and this illustrates that this device can control the speed of welding arc.
2. magnetic field speed 50Hz changes the size of exciting current, keeps other test parameters constant: to adopt high-speed camera to take arc shape when exciting current is respectively 3A and 4A, specifically referring to Fig. 8, Fig. 9.
Comparison diagram 8 and Fig. 9 keep the magnetic field speed constant as can be seen, when exciting current increases, the increase of the radius of turn of electric arc, by the interpretation of result of many groups high-speed camera as can be known this device can control the radius of turn of electric arc.
Claims (5)
1, is used to control the generation device of rotating magnetic field of welding arc, this device mainly includes welding gun 15, it is characterized in that: also include magnetic head top cover 2, magnetic head bottom 6, magnetic head outer wall 4, magnetic head inwall 1, the magnet exciting coil 5 on the magnetic post iron core 3, connect bakelite circle 14, wherein, connect bakelite circle 14 and have internal thread, one side screw thread is connected with magnetic head inwall 1, and the opposite side screw thread is connected with welding gun 15, and welding gun 15 is inserted in the cavity that is surrounded by magnetic head inwall 1; Magnetic head top cover 2 is connected with magnetic head inwall 1, and magnetic head top cover 2 is connected with magnetic head outer wall 4 by annular bakelite circle 12; Magnetic head bottom 6 is connected with magnetic head inwall 1, magnetic head enclosing cover 2 respectively; Six magnetic post iron cores 3 that are wound with magnet exciting coil 5 along the circumferential direction are evenly distributed in the cavity that is surrounded by magnetic head top cover 2, magnetic head bottom 6, magnetic head inwall 1, magnetic head outer wall 4, annular bakelite circle 12; Magnet exciting coil 5 is drawn with field power supply 17 by the through hole on the bakelite circle 12 that goes in ring and is connected.
2, the generation device of rotating magnetic field that is used to control welding arc according to claim 1, it is characterized in that: described magnetic head top cover 2 is provided with water swivel 13, be connected with outer tank by water swivel 13, cooling water is circulated in the cavity of being made up of magnetic head top cover 2, magnetic head bottom 6, magnetic head inwall 1, magnetic head outer wall 4, annular bakelite circle 12, six magnetic post iron cores 3 that are wound with magnet exciting coil 5 are immersed in the recirculated cooling water.
3, the generation device of rotating magnetic field that is used to control welding arc according to claim 1, it is characterized in that: the cylindrical of magnetic head top cover 2 has identical gradient with the inwall of belt bakelite circle 12, magnetic head outer wall 4 has identical gradient equally with the outer wall of annular bakelite circle 12, adopts interference fit that the inwall of magnetic head top cover 2 and annular bakelite circle 12, magnetic head outer wall 4 are closely linked together with the outer wall of annular bakelite circle 12.
4, the generation device of rotating magnetic field that is used to control welding arc according to claim 1 is characterized in that: all adopted sealing rubber ring 11 to seal between magnetic head inwall 1 and magnetic head top cover 2, magnetic head inwall 1 and magnetic head bottom 6, magnetic head outer wall 4 and the magnetic head bottom 6.
5, the generation device of rotating magnetic field that is used to control welding arc according to claim 1, it is characterized in that: described field power supply 17 provides the exciting current of three-phase list triple time form, and the inversion frequency of exciting current and exciting current size can be regulated separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610089510 CN1872479A (en) | 2006-06-30 | 2006-06-30 | Generation device of rotating magnetic field in use for controlling welding arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610089510 CN1872479A (en) | 2006-06-30 | 2006-06-30 | Generation device of rotating magnetic field in use for controlling welding arc |
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| Publication Number | Publication Date |
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| CN1872479A true CN1872479A (en) | 2006-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610089510 Pending CN1872479A (en) | 2006-06-30 | 2006-06-30 | Generation device of rotating magnetic field in use for controlling welding arc |
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| CN (1) | CN1872479A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007079650A1 (en) * | 2006-01-13 | 2007-07-19 | Cheng-Rui Xiong | A method for controlling and dissipating harmful plasma in industrial production by motive magnetic field and a motive magnetic field generating device |
| CN102253114A (en) * | 2010-12-30 | 2011-11-23 | 保定天威集团有限公司 | Magnetic flux leakage experimental facility for using mirror method |
| CN102385968A (en) * | 2011-10-31 | 2012-03-21 | 昆明理工大学 | Device for generating rotating magnetic field by interval type windings |
| CN102825364A (en) * | 2012-09-12 | 2012-12-19 | 湘潭大学 | Magnetic-control arc sensor device applied in seam tracking |
| CN102922095A (en) * | 2012-10-31 | 2013-02-13 | 湘潭大学 | Magnetic control electric arc rotation sensor for seam tracking |
| CN106891074A (en) * | 2017-02-20 | 2017-06-27 | 湘潭大学 | A kind of magnetic control rotary arc sensor with the poly- arcing of magnetic |
| CN109909593A (en) * | 2019-03-19 | 2019-06-21 | 昆山华恒焊接股份有限公司 | Circumscribed magnetic control arc pendulous device |
| CN110614418A (en) * | 2019-10-31 | 2019-12-27 | 中国科学院合肥物质科学研究院 | Stud welding magnetic restraint device for welding robot |
| CN112536521A (en) * | 2020-11-04 | 2021-03-23 | 青岛科技大学 | Novel multi-polar rotary sharp-corner magnetic field recompression plasma arc device |
| CN114043055A (en) * | 2021-07-01 | 2022-02-15 | 北京工业大学 | Magnetic field array auxiliary resistance spot welding device and method for sheet metal material |
| CN114346381A (en) * | 2022-01-12 | 2022-04-15 | 湘潭大学 | Magnetic control arc control method and device based on multi-pole sharp-corner magnetic field |
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2006
- 2006-06-30 CN CN 200610089510 patent/CN1872479A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007079650A1 (en) * | 2006-01-13 | 2007-07-19 | Cheng-Rui Xiong | A method for controlling and dissipating harmful plasma in industrial production by motive magnetic field and a motive magnetic field generating device |
| CN102253114A (en) * | 2010-12-30 | 2011-11-23 | 保定天威集团有限公司 | Magnetic flux leakage experimental facility for using mirror method |
| CN102253114B (en) * | 2010-12-30 | 2013-08-28 | 保定天威集团有限公司 | Magnetic flux leakage experimental facility for using mirror method |
| CN102385968A (en) * | 2011-10-31 | 2012-03-21 | 昆明理工大学 | Device for generating rotating magnetic field by interval type windings |
| CN102825364A (en) * | 2012-09-12 | 2012-12-19 | 湘潭大学 | Magnetic-control arc sensor device applied in seam tracking |
| CN102922095A (en) * | 2012-10-31 | 2013-02-13 | 湘潭大学 | Magnetic control electric arc rotation sensor for seam tracking |
| CN102922095B (en) * | 2012-10-31 | 2014-10-15 | 湘潭大学 | Magnetic control electric arc rotation sensor for seam tracking |
| CN106891074B (en) * | 2017-02-20 | 2019-10-18 | 湘潭大学 | A kind of magnetic control rotary arc sensor with the poly- arcing of magnetic |
| CN106891074A (en) * | 2017-02-20 | 2017-06-27 | 湘潭大学 | A kind of magnetic control rotary arc sensor with the poly- arcing of magnetic |
| CN109909593A (en) * | 2019-03-19 | 2019-06-21 | 昆山华恒焊接股份有限公司 | Circumscribed magnetic control arc pendulous device |
| CN109909593B (en) * | 2019-03-19 | 2024-01-30 | 昆山华恒焊接股份有限公司 | External magnetic control arc swinging device |
| CN110614418A (en) * | 2019-10-31 | 2019-12-27 | 中国科学院合肥物质科学研究院 | Stud welding magnetic restraint device for welding robot |
| CN112536521A (en) * | 2020-11-04 | 2021-03-23 | 青岛科技大学 | Novel multi-polar rotary sharp-corner magnetic field recompression plasma arc device |
| CN114043055A (en) * | 2021-07-01 | 2022-02-15 | 北京工业大学 | Magnetic field array auxiliary resistance spot welding device and method for sheet metal material |
| CN114043055B (en) * | 2021-07-01 | 2024-01-09 | 北京工业大学 | Magnetic field array auxiliary resistance spot welding device and method for sheet metal material |
| CN114346381A (en) * | 2022-01-12 | 2022-04-15 | 湘潭大学 | Magnetic control arc control method and device based on multi-pole sharp-corner magnetic field |
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