CN109909593B - External magnetic control arc swinging device - Google Patents
External magnetic control arc swinging device Download PDFInfo
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- CN109909593B CN109909593B CN201910208073.2A CN201910208073A CN109909593B CN 109909593 B CN109909593 B CN 109909593B CN 201910208073 A CN201910208073 A CN 201910208073A CN 109909593 B CN109909593 B CN 109909593B
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- 230000005284 excitation Effects 0.000 claims abstract description 57
- 238000003466 welding Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010891 electric arc Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 229910052721 tungsten Inorganic materials 0.000 description 6
- 239000010937 tungsten Substances 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The invention provides an external magnetic control arc swinging device which is used with a welding gun and comprises at least one excitation rod, an excitation coil wound on the excitation rod, a fixing frame connected on the excitation rod and matched and fixed with the welding gun, a pair of magnetic conduction rods connected at two ends of the excitation rod for conducting magnetic conduction and a pair of magnetic conduction rods connected with the magnetic conduction rods, wherein each pair of magnetic conduction rods is arranged at intervals, each magnetic conduction rod is provided with a magnetic conduction head for influencing arc swinging, after the external magnetic control arc swinging device is electrified, the excitation coil wound on the excitation rod is electrified to generate a magnetic field, the magnetic field is transmitted to the magnetic conduction rods through the conduction of the magnetic conduction rods, and the arc swinging of the welding gun is controlled through the magnetic field conducted by the magnetic conduction heads. By the arrangement, the frequency and amplitude of arc swing and the time of any stay at the two sides or the middle of the arc swing can be accurately controlled and regulated in real time in the welding process.
Description
Technical Field
The invention relates to the technical field of welding processing, in particular to an external magnetic control arc swinging device.
Background
The arc is a continuous gas discharge phenomenon and is formed by a large amount of charged particles, so that the magnetic field is introduced in the welding process, and the welding arc is subjected to the action of Lorentz force to move along with the magnetic field in a related mode. The current commonly used modes of controlling the electric arc by an external magnetic field mainly comprise three modes: firstly, an external transverse magnetic field is applied, magnetic lines of force of the transverse magnetic field are perpendicular to an arc axis, and the external transverse magnetic field can control arc swing and improve weld formation; secondly, an external longitudinal magnetic field is applied, magnetic lines of force of the longitudinal magnetic field are parallel to the axis of the electric arc, and the magnetic field can stir a welding pool, refine grain structures and improve welding quality; thirdly, a sharp angle magnetic field is added, the shape of the electric arc can be changed, and the electric arc can be compressed and widened according to the requirements of a welding process.
At present, the known arc swinging devices are all mechanical swinging devices, namely, a motor is used for driving a mechanical structure to enable a tungsten electrode welding gun to mechanically swing or enable a tungsten electrode to mechanically swing, and the swinging frequency and the swinging amplitude of the welding gun or the tungsten electrode are controlled by adjusting the rotating speed of the motor and the swinging amplitude of a mechanical actuating mechanism, so that the swinging frequency and the swinging amplitude of an arc are controlled. However, the disadvantages are also apparent in that the device is complex in structure and the oscillation frequency and amplitude of the arc are inconvenient to adjust, and in particular the frequency and amplitude of the oscillation of the arc and the time of any stay on either side or in the middle of the oscillation amplitude of the arc cannot be precisely controlled and adjusted in real time during the welding process. Furthermore, the wobble speed cannot be further increased due to the affordability of the mechanical structure.
Accordingly, there is a need for an improved external magnetron arc swing device that addresses the above-described issues.
Disclosure of Invention
The invention aims to provide an external magnetic control arc swinging device which has a simple structure and can accurately control arc swinging.
The invention provides an external magnetic control arc swinging device which is used for being matched with a welding gun, and the external magnetic control arc swinging device comprises at least one excitation rod, an excitation coil wound on the excitation rod, a fixing frame connected on the excitation rod and matched and fixed with the welding gun, a pair of magnetic conduction rods connected at two ends of the excitation rod for conducting magnetic conduction and a pair of magnetic conduction rods connected with the magnetic conduction rods, wherein the pair of magnetic conduction rods are arranged at intervals, each magnetic conduction rod is provided with a magnetic conduction head for influencing arc swinging, after the external magnetic control arc swinging device is electrified, the excitation coil wound on the excitation rod is electrified to generate a magnetic field, the magnetic field is transmitted to the magnetic conduction rod through the conduction of the magnetic conduction rod, and the arc swinging of the welding gun is controlled through the magnetic field conducted by the magnetic conduction heads.
As a further improvement of the invention, the external magnetic control arc swinging device comprises a pair of excitation rods which are symmetrically arranged, and excitation coils on the pair of excitation rods are connected in series, so that the polarities of the end parts of the pair of excitation rods positioned on the same side are the same.
As a further improvement of the invention, the magnetic conducting rods positioned on the same side of the pair of excitation rods are connected with the same magnetic conducting rod.
As a further improvement of the invention, the magnetic conduction rod is fixedly connected with the magnetic conduction rod through a magnetic conduction block, and the magnetic conduction rod is rotatably connected with the magnetic conduction block.
As a further improvement of the invention, the magnetic conduction head is inclined from the axis of the magnetic conduction rod.
As a further improvement of the invention, two ends of the fixing frame are respectively connected to two ends of the excitation rod, and a pair of fixing frames extend oppositely and are respectively provided with annular fixing parts for fixing the welding gun.
As a further improvement of the present invention, the annular fixing portion is located higher than the position of the magnetic conductive rod, and the annular fixing portion is located between the pair of magnetic conductive rods.
As a further improvement of the invention, the exterior of the exciting coil is surrounded by a cooling pipeline, the surfaces of the two end parts of the exciting rod are respectively provided with a plurality of water diversion pipe orifices, the interior of each water diversion pipe orifice is connected with the cooling pipeline, and the exterior of each water diversion pipe orifice is communicated with a circulating water source.
As a further improvement of the invention, the surfaces of the two end parts of the excitation rod are respectively provided with a plurality of lead ports which are electrically connected with an external control system.
In order to achieve the aim of the invention, the invention provides a welding device which comprises an external magnetic control arc swinging device and a welding gun matched with the external magnetic control arc swinging device, wherein the welding gun is fixed on a fixing frame, and the head of the welding gun is positioned between a pair of magnetic conductive rods.
The beneficial effects of the invention are as follows: the invention precisely controls and adjusts the frequency and amplitude of the arc swing and the time of any stay at the two sides or the middle of the arc swing in real time in the welding process.
Drawings
FIG. 1 is a perspective view of the external magnetic control arc swinging device, the wire feeding device and the workpiece to be welded according to the invention.
Fig. 2 is a perspective combined view of the external magnetic control arc swinging device of the invention.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural or functional modifications thereof by those skilled in the art are intended to be included within the scope of the present invention.
Referring to fig. 1 to 2, the welding device of the present invention includes a welding gun and an external magnetic control arc swinging device 100 used in cooperation with the welding gun. The arc swing of the welding gun is precisely controlled by the magnetic field generated by the external magnetic control arc swing device 100, so that the frequency and amplitude of the arc swing and the time of any stay at the two sides or the middle of the arc swing can be precisely controlled and regulated in real time in the welding process. For convenience of description, the present invention defines an up-down direction, a first direction perpendicular to the up-down direction, and a second direction perpendicular to the up-down direction and the first direction, respectively.
The externally-connected magnetic control arc swinging device 100 comprises at least one excitation rod 1, an excitation coil 2 wound on the excitation rod 1, a fixing frame 3 connected to the excitation rod 1 and fixed with a welding gun in a matched mode, a pair of magnetic conduction rods 4 connected to two ends of the excitation rod 1 for conducting magnetic conduction, and a pair of magnetic conduction rods 5 connected with the magnetic conduction rods 4. The pair of magnetic conductive rods 5 are arranged at intervals, each magnetic conductive rod 5 is provided with a magnetic conductive head 51 for influencing arc swing, after the external magnetic control arc swing device 100 is electrified, the exciting coil 2 wound on the exciting rod 1 is electrified to generate a magnetic field, the magnetic field is transmitted to the magnetic conductive rods 5 through the conduction of the magnetic conductive rods 4, and the magnetic field conducted through the magnetic conductive heads 51 meets with a magnetic field generated by an arc of a tungsten electrode needle of a welding gun and acts on the magnetic field to enable the arc to swing. The swing amplitude of the electric arc can be changed by changing the magnitude of the current fed into the exciting coil 2; by changing the direction of the current flowing in the exciting coil 2, the swing direction of the arc can be changed; by controlling the energization time of the exciting coil 2, the time for which the arc stays on either side can be controlled.
In a preferred embodiment of the present invention, the external magnetic control arc swinging device 100 includes a pair of excitation rods 1 symmetrically arranged. The excitation rod 1 has a cylindrical structure and has end portions 11 located at both ends in a first direction. The surfaces of the two end parts 11 of the excitation rod are respectively provided with a plurality of lead ports 12 which are electrically connected with an external control system. The pair of excitation bars 1 are identical in height and are arranged along the second direction, and the pair of magnetic conduction bars 5 are arranged along the first direction.
In this embodiment, the magnetic conducting rods 4 located on the same side of the pair of excitation rods 1 are connected with the same magnetic conducting rod 5, and the excitation coils 2 on the pair of excitation rods 1 are connected in series, so that the ends 11 of the pair of excitation rods 1 located on the same side have the same polarity, and the ends 11 on the same side generate the same magnetic field, and can be overlapped when being conducted to the magnetic conducting rod 5, thereby enhancing the intensity of the magnetic field conducted by the magnetic conducting head 51, and further enhancing the control and adjustment of arc swing of the welding gun. The magnetic conductive rod 4 has a first rod portion 41 extending in the up-down direction and a second rod portion 42 connecting the first rod portion 41 and the magnetic conductive rod 5. The first rod 41 is fixed to the end 11 of the excitation rod 1 by a screw.
The two ends of the fixing frame 3 are respectively connected to the two ends 11 of the excitation rod 1 through screws, and a pair of fixing frames 3 extend in opposite directions and are respectively provided with annular fixing parts 31 for fixing the welding gun. The position of the annular fixing portion 31 is higher than that of the magnetic conductive rods 5, and the annular fixing portion 31 is located between the pair of magnetic conductive rods 5 along the first direction, so that when the welding gun is fixed on the fixing frame, the tungsten electrode needle of the welding gun is located between the pair of magnetic conductive rods 5, and the magnetic field conducted by the magnetic conductive head 51 meets and acts with the magnetic field generated by the electric arc of the tungsten electrode needle of the welding gun. In the present embodiment, the fixing frame 3 is horizontally disposed, the ring-shaped fixing portions 31 have a semicircular structure, and the pair of ring-shaped fixing portions 31 have a circular structure, so that the welding gun is accommodated therein, and the pair of ring-shaped fixing portions 31 are fixed by screws. The annular securing portion 31 may be a hoop or other form of securing structure.
Of course, in other embodiments, the number of the excitation rod 1 may be one, and correspondingly, the number of the magnetic conducting rods 4 connected to two ends of the excitation rod 1 may be two, the number of the fixing frame 3 may be one, and the annular fixing portion 31 on the fixing frame 3 may be provided as a circular ring structure or other fixing structures. With this arrangement, the technical effects of the present invention can also be achieved.
In a preferred embodiment of the present invention, the magnetic rod 5 is fixedly connected to the magnetic rod 4 through a magnetic block 6, and the magnetic rod 5 is rotatably connected to the magnetic block 6. The magnetic conduction block 6 can be set to be a hollow rectangular structure, the magnetic conduction rod 5 is fixed inside the magnetic conduction block 6 through a screw 8, and the magnetic conduction rods 4 located on the same side along the first direction are fixed at two ends of the magnetic conduction block 6 along the second direction through screws.
The magnetic conductive rod 5 includes a main body 52 movably connected to the magnetic conductive head 51. The main body 52 is narrowed at its lower end, and has a hemispherical cavity structure therein, and the magnetic head 51 has a spherical structure at its upper end, and is movably connected with the main body by the spherical structure, so as to perform universal rotation to adjust the acting angle of the magnetic field. The magnetic head 51 is inclined away from the axis of the main body 52 of the magnetic rod 5. The main body 52 of the magnetic rod 5 is also provided with length scales. A magnetic element can be placed inside the magnetic conduction rod 5 to strengthen the magnetism of the magnetic conduction rod 5.
In this embodiment, the excitation coil 2 is externally surrounded with the cooling pipeline 7, and the surface of the two ends 11 of the excitation rod 1 is respectively provided with a plurality of water diversion nozzles 13, the inside of the water diversion nozzles 13 is connected with the cooling pipeline 7, and the outside is communicated with a circulating water source, so as to cool the device and avoid damage caused by overhigh temperature of the whole device.
The surfaces of the exciting rod 1, the exciting coil 2, the magnetic conducting rod 4, the magnetic conducting rod 5 and the magnetic conducting block 6 are coated with insulating coatings so as to avoid magnetic interference caused by arc contact and influence the accurate control of arc swing.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. An external magnetic control electric arc pendulous device for use with welder cooperation, its characterized in that: the external magnetic control arc swinging device comprises a pair of excitation rods, excitation coils, a fixing frame, a pair of magnetic conducting rods and a pair of magnetic conducting rods, wherein the excitation rods are symmetrically arranged, the excitation coils are wound on the excitation rods, the fixing frame is connected to the excitation rods and matched and fixed with a welding gun, the pair of magnetic conducting rods are connected to two ends of the excitation rods to conduct magnetic conduction, the pair of magnetic conducting rods are connected with the magnetic conducting rods, the magnetic conducting rods are arranged at intervals, each magnetic conducting rod is provided with a magnetic conducting head for affecting arc swinging, after the external magnetic control arc swinging device is electrified, the excitation coils wound on the excitation rods are electrified to generate a magnetic field, the magnetic field is transmitted to the magnetic conducting rods through the conduction of the magnetic conducting rods, and the arc swinging of the welding gun is controlled through the magnetic field conducted by the magnetic conducting heads;
the excitation coils on the pair of excitation rods are connected in series, so that the polarities of the end parts of the pair of excitation rods, which are positioned on the same side, are the same;
and the magnetic conducting rods positioned on the same side of the pair of excitation rods are connected with the same magnetic conducting rod.
2. The external magnetron arc swinging device according to claim 1 wherein: the magnetic conduction rod is fixedly connected with the magnetic conduction rod through a magnetic conduction block, and the magnetic conduction rod is rotatably connected with the magnetic conduction block.
3. The external magnetron arc swinging device according to claim 2 wherein: the magnetic conduction head is inclined away from the axis of the magnetic conduction rod.
4. The external magnetron arc swinging apparatus as claimed in claim 3 wherein: the two ends of the fixing frame are respectively connected to the two ends of the excitation rod, and the pair of fixing frames extend in opposite directions and are respectively provided with an annular fixing part for fixing the welding gun.
5. The external magnetron arc swinging apparatus as claimed in claim 4 wherein: the annular fixing part is higher than the magnetic conductive rods and is positioned between the pair of magnetic conductive rods.
6. The external magnetron arc swinging device according to claim 1 wherein: the excitation coil is externally surrounded by a cooling pipeline, the surfaces of the two end parts of the excitation rod are respectively provided with a plurality of water diversion pipe orifices, the inside of each water diversion pipe orifice is connected with the cooling pipeline, and the outside is communicated with a circulating water source.
7. The external magnetron arc swinging apparatus as claimed in claim 6 wherein: the surfaces of two end parts of the excitation rod are respectively provided with a plurality of lead ports which are electrically connected with an external control system.
8. A welding device, characterized in that: an external magnetic control arc swinging device and a welding gun matched with the external magnetic control arc swinging device for use, wherein the welding gun is fixed on a fixing frame, and the head of the welding gun is positioned between a pair of magnetic conductive rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208073.2A CN109909593B (en) | 2019-03-19 | 2019-03-19 | External magnetic control arc swinging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208073.2A CN109909593B (en) | 2019-03-19 | 2019-03-19 | External magnetic control arc swinging device |
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| Publication Number | Publication Date |
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| CN109909593A CN109909593A (en) | 2019-06-21 |
| CN109909593B true CN109909593B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910208073.2A Active CN109909593B (en) | 2019-03-19 | 2019-03-19 | External magnetic control arc swinging device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115106627B (en) * | 2022-07-18 | 2023-11-28 | 江苏海事职业技术学院 | Intelligent auxiliary manual arc welding gun device with variable swing amplitude and use method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB237901A (en) * | 1924-07-30 | 1926-02-04 | British Thomson Houston Co Ltd | Improvements in and relating to welding processes and apparatus therefor |
| FR765628A (en) * | 1932-11-04 | 1934-06-13 | Improvements to electric arc welding machines | |
| JPH0929432A (en) * | 1995-07-24 | 1997-02-04 | Ishikawajima Harima Heavy Ind Co Ltd | Magnetic stirring welding device |
| CN1872479A (en) * | 2006-06-30 | 2006-12-06 | 北京工业大学 | Generation device of rotating magnetic field in use for controlling welding arc |
| 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 |
| CN107971604A (en) * | 2017-12-30 | 2018-05-01 | 昆山华恒焊接股份有限公司 | Welding gun with excitation unit |
| CN207593023U (en) * | 2017-12-22 | 2018-07-10 | 成都焊研科技有限责任公司 | A kind of roll overlaying welding gun based on electromagnetism swinging technique |
| CN209867642U (en) * | 2019-03-19 | 2019-12-31 | 昆山华恒焊接股份有限公司 | External magnetic control arc swinging device and welding device |
-
2019
- 2019-03-19 CN CN201910208073.2A patent/CN109909593B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB237901A (en) * | 1924-07-30 | 1926-02-04 | British Thomson Houston Co Ltd | Improvements in and relating to welding processes and apparatus therefor |
| FR765628A (en) * | 1932-11-04 | 1934-06-13 | Improvements to electric arc welding machines | |
| JPH0929432A (en) * | 1995-07-24 | 1997-02-04 | Ishikawajima Harima Heavy Ind Co Ltd | Magnetic stirring welding device |
| CN1872479A (en) * | 2006-06-30 | 2006-12-06 | 北京工业大学 | Generation device of rotating magnetic field in use for controlling welding arc |
| 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 |
| CN207593023U (en) * | 2017-12-22 | 2018-07-10 | 成都焊研科技有限责任公司 | A kind of roll overlaying welding gun based on electromagnetism swinging technique |
| CN107971604A (en) * | 2017-12-30 | 2018-05-01 | 昆山华恒焊接股份有限公司 | Welding gun with excitation unit |
| CN209867642U (en) * | 2019-03-19 | 2019-12-31 | 昆山华恒焊接股份有限公司 | External magnetic control arc swinging device and welding device |
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| CN109909593A (en) | 2019-06-21 |
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