CN109530864A - A kind of weld seam tracking sensor with magnetic field control TIG electric arc - Google Patents
A kind of weld seam tracking sensor with magnetic field control TIG electric arc Download PDFInfo
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- CN109530864A CN109530864A CN201910004123.5A CN201910004123A CN109530864A CN 109530864 A CN109530864 A CN 109530864A CN 201910004123 A CN201910004123 A CN 201910004123A CN 109530864 A CN109530864 A CN 109530864A
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- magnetic field
- electric arc
- worm
- weld seam
- stop sleeve
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- 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
- B23K9/127—Means for tracking lines during arc welding or cutting
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of weld seam tracking sensor using magnetic field control TIG electric arc, which includes that the part such as worm and gear, stop sleeve, Hall sensor forms.The sensor is mainly made of magnetic field excitation power supply, the magnetic induction loop in generation magnetic field and Worm and worm-wheel gearing.Magnetic induction loop is wrapped on stop sleeve, excitation power supply makes magnetic induction loop generate longitudinal magnetic field, and the magnetic induction intensity in magnetic field is symmetrical about central axis, central axis magnetic induction intensity is maximum, further away from central axis, magnetic induction intensity is smaller, make magnetic field that left and right offset occur by Worm Wheel System, cause TIG electric arc both sides magnetic field size uneven, to which the shrinkage degree on electric arc both sides is different, so that electric arc deflection scans weld seam, arc information is extracted through Hall sensor, weld joint tracking deviation is judged by weld joint tracking real-time adjusting mechanism again, and then adjust path of welding and welding parameter, to implement to automatically track to weld seam.
Description
Technical field
Invent herein it is a kind of using magnetic fields on the electric arc of TIG weld, realize automatically tracking and improve to weld seam
The purpose of the quality of weld seam is specifically a kind of weld seam tracking sensor using magnetic field control arc deflection.
Background technique
With constantly improve for magnetic field technique, magnetic field technique applies to more and more fields, and same magnetic field technique is welding
Connecing field also has huge development prospect and practical value.
Electric arc is the strong lasting electric discharge phenomena generated between two electrodes, and the arc column of electric arc is to contain a large amount of electricity
The gaseous state that the charged particles such as son, cation and neutral particle etc. condense together, so under the influence of a magnetic field, between arc column
Charged particle by the work of Lorentz force be used as it is relevant movement rotate electric arc.The mode in the common magnetic field applied at present
Have: applying longitudinal magnetic field, electric arc can be made to focus, and agitation molten pool makes the crystal grain refinement of tissue, improves welding quality；It applies
Add transverse magnetic field, can control the swing of electric arc and improves appearance of weld；Apply sharp magnetic field, thus it is possible to vary the shape of electric arc,
It is corresponding to electric arc progress to widen and compress according to the needs of welding procedure.
At abroad, the scholars such as lofinaov P. A will apply externally-applied magnetic field in Lincoln weld welding progress, observes and divide
Externally-applied magnetic field is analysed to the action rule of welding wire melting rate.Japanese side takes externally-applied magnetic field control in the mariages TIG weld stage
System, affects the metallurgical reaction of weld metal.Manage et al. analyzes magnetic field and acts on welding arc and weld metal
Rule.
At home, the artificial research aluminum Alloys Pulsed MIG Welding Based of Chang Yunlong, vehicle small equality is when applying longitudinal magnetic field on electric arc
Influence to the droplet transfer, molten drop display form when high speed recording arrangement being taken to collect welding change shape to the analysis droplet transfer
Formula.Li Jun, Jiang Shuyuan et al. apply constant longitudinal magnetic field in Aluminum Alloy TIG Welding welding process to it, and discovery is when without adding magnetic
When, weld structure is larger, weld seam lines is irregular；And in the presence of constant longitudinal magnetic field, weld structure becomes
Fine and closely woven, property of welded joint is improved.
In conclusion domestic and foreign scholars are that magnetic field is used in welding tissue mostly, property of welded joint, to droplet transfer
Influence etc., there are also applying to magnetic field on weld seam tracking sensor, but electric arc how to be made to stablize combustion in migration process
Burning is a urgent problem to be solved, more without a kind of electric arc that can control electric arc focusing again by magnetic field control arc offset
Sensor.
Summary of the invention
In view of the drawbacks of the prior art, it is an object of the invention to propose it is a kind of with magnetic field control TIG electric arc weld seam with
Track sensor, which makes magnetic field shift by additional stable longitudinal magnetic field by worm and gear, to draw
Electric arc oscillatory scanning weld seam.
The purpose of the present invention is be achieved through the following technical solutions: the device includes worm gearing, support sleeve
The part such as cylinder, Hall sensor, magnetic field excitation power supply, data analysis system forms, and magnetic field excitation power supply is exported to magnetic induction loop
Specific DC current generates longitudinal magnetic field, so that magnetic field is shifted by worm and gear tradition, and traction electric arc is regular partially
It moves, the variation of arc parameters obtains corresponding data when Hall sensor receives welding, these data are input to data point
Analysis system is analyzed to obtain corresponding welding parameter, and by these parameter feedbacks to regulating mechanism, regulating mechanism is according to obtaining
Data are adjusted path of welding and welding parameter, realize soldering joint automatic tracking.
Supporting sleeve upper end of the present invention connects two worm screws, and has a water inlet in the upper surface of stop sleeve
Mouth and a water outlet, there is a water storage tank between sleeve outermost layer and internal layer.
Field generator for magnetic of the invention is logical to the magnetic induction loop being wrapped on stop sleeve by magnetic field excitation power supply
Electricity generates longitudinal magnetic field.
Magnetic field excitation power supply of the present invention is DC power supply, and the big of output electric current can be adjusted according to weld seam situation
The small size to change magnetic field, and then change the shrinkage degree of electric arc.
Transmission device of the present invention rotates to make to drive worm-drive by worm gear, and worm screw and stop sleeve are one
A entirety is also with the magnetic induction loop offset on moving sleeve to make magnetic field shift.
Water cooling plant in magnetic control arc sensor of the present invention uses circulating water, and water inlet taps into water pipe, water outlet
Connected water outlet pipe.When outle water rate is equal to the rate of output water, to guarantee the smooth of cooling water circulation.Magnetic induction loop is tightly wound around water storage
Slot outer wall, and insulating materials is coated in outer wall, this mode can make magnet exciting coil temperature, and magnetic coil temperature controls always always
In certain temperature point hereinafter, to guarantee that excitation is normally carried out in welding process.
The working principle of the invention and effect are as follows:
Fig. 4 is the central axis of tungsten electrode and stop sleeve when being overlapped, and the electric arc after the tungsten electrode starting the arc is swept under symmetrical magnetic fields
Position and the form of weld seam are retouched, Fig. 5 is under the transmission effect of worm and gear, and magnetic field deviates to the left relative to tungsten electrode, i.e. electric arc
Under asymmetric magnetic fields, and the magnetic field strength on the tungsten electrode left side is less than magnetic field strength on the right of tungsten electrode, so as to cause
The radius of turn of electronics in the electric arc of the tungsten electrode left side is greater than the radius of turn of the electronics in the electric arc of the right, shows as the tungsten electrode left side
Arc width be greater than the width of electric arc on the right of tungsten electrode, scan the weld seam on the weldment left side, Fig. 6 is to make in the transmission of worm and gear
Under, magnetic field deviates to the right relative to tungsten electrode, i.e., electric arc is under asymmetric magnetic fields, and the magnetic field on the right of tungsten electrode is strong
Degree is less than tungsten electrode left side magnetic field strength, and the radius of turn so as to cause the electronics in electric arc on the right of tungsten electrode is greater than left side electric arc
In electronics radius of turn, show as the width that the arc width on the right of tungsten electrode is greater than tungsten electrode left side electric arc, scan weldment
The weld seam on the right.
The present invention has following the utility model has the advantages that tungsten electrode is there is no movement, so the burning that electric arc can be stable, vertical
To under the constraint in magnetic field, electric arc will not be dissipated because of inertia, and achieve the effect that arc offset, to effectively extract electric arc
Information carry out electric arc tracking, and longitudinal magnetic field can make melting bath stirring, to keep seam organization more tiny, mechanical property is more
It is good.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention, and Fig. 2 and Fig. 3 are worm screw of the invention and stop sleeve overall structure figure,
Fig. 4 Fig. 5 and Fig. 6 are the position while welding figure of sensor and corresponding welding workpiece when the invention works, and 1-magnetic field is swashed in figure
Encourage power supply, 2-worm screws, 3-water inlets, 4-worm gears, 5-water outlets, 6-magnetic induction loops, 7-induced magnetic fields, 8-tungsten electrodes,
9-nozzles, 10-stop sleevees, 11-conducting wires.
Specific embodiment
Below in conjunction with drawings and examples, invention is further described in detail.Referring to Fig. 1, the present embodiment passes through offset
Magnetic field the movement of electric arc is controlled, carry out automatically scanning tracking device include: magnetic field excitation power supply, magnetic induction loop,
Worm and gear, stop sleeve etc..Magnetic field excitation power supply exports specific direct current to magnetic induction loop and generates magnetic field, and passes through worm gear
Worm-drive makes the offset that magnetic field orients, and draws the regular progress weld seam scanning motion of electric arc, and Hall sensor receives
The variation of welding current obtains corresponding data when to arc motion, these data are input to data analysis system and are analyzed
Corresponding position while welding parameter is obtained, these parameters are input to regulating mechanism, and regulating mechanism is according to obtained data Butt welding gun
Position is adjusted, and realizes soldering joint automatic tracking.It is as follows that electric arc carries out theoretical formula required for automatically scanning:
R is the radius that electronics moves in a circle in magnetic field in above formula, and m is the quality of electronics, and v is the longitudinal velocity of electronics, and q is
The quantity of electric charge of electron institute band, B are the size of induced magnetic field.
Referring to figs. 2 and 3, it is connected to worm screw above sleeve, occurs that stop sleeve also by the transmission of worm and gear
The offset of orientation forms a water storage tank between stop sleeve outer wall and inner wall and cools down to magnetic induction loop, and closing
There are a water inlet and a water outlet at the top of the symmetrical sleeve of bushing core, it is convenient that cooling water is swapped.
Case study on implementation is referring to fig. 4, Fig. 5, Fig. 6 the weld seam position of the corresponding welding workpiece of sensor of magnetic control arc tracking
Figure is set, Fig. 4 is the central axis of tungsten electrode and supporting sleeve when being overlapped, and the electric arc after the tungsten electrode starting the arc is swept under symmetrical magnetic fields
Position and the form of weld seam are retouched, Fig. 5 is under the transmission effect of worm and gear, and magnetic field deviates to the left relative to tungsten electrode, i.e. electric arc
Under asymmetric magnetic fields, and the magnetic field strength on the tungsten electrode left side is less than magnetic field strength on the right of tungsten electrode, so as to cause
The radius of turn of electronics in the electric arc of the tungsten electrode left side is greater than the radius of turn of the electronics in the electric arc of the right, shows as the tungsten electrode left side
Arc width be greater than the width of electric arc on the right of tungsten electrode, scan the weld seam on the weldment left side, Fig. 6 is to make in the transmission of worm and gear
Under, magnetic field deviates to the right relative to tungsten electrode, i.e., electric arc is under asymmetric magnetic fields, and the magnetic field on the right of tungsten electrode is strong
Degree is less than tungsten electrode left side magnetic field strength, and the radius of turn so as to cause the electronics in electric arc on the right of tungsten electrode is greater than left side electric arc
In electronics radius of turn, show as the width that the arc width on the right of tungsten electrode is greater than tungsten electrode left side electric arc, scan weldment
The weld seam on the right.
When electric arc scans back and forth weld seam under the influence of a magnetic field, relevant arc parameters are extracted by hall element sensor,
And each position while welding can have a corresponding welding parameter to be corresponding to it, these data are input to data analysis system
System is analyzed to obtain corresponding welding parameter, and by these parameter feedbacks to regulating mechanism, regulating mechanism is according to obtained data
Path of welding and welding parameter are adjusted, weld seam precision is automatically tracked to realize.
Claims (3)
1. the sensor is mainly made of magnetic field excitation power supply, the magnetic induction loop in generation magnetic field and Worm and worm-wheel gearing, weld
The tungsten electrode of rifle does not move, and under the longitudinal magnetic field effect of offset, reaches the effect of arc shape focusing and electric arc rotary oscillation
Fruit obtains the information of related electric arc to realize weld joint tracking.
2. a kind of weld seam tracking sensor with magnetic field control TIG electric arc according to claim 1, it is characterised in that welding
A stop sleeve is put on outside rifle, enamel covered wire is from top to bottom closely wrapped in above stop sleeve and forms magnetic induction line
Circle, and wrapped up copper wire with insulating materials, two worm screws are connected on stop sleeve, are driven using turbine and worm, are made to support
Sleeve and magnetic induction loop or so offset.
3. according to claim 1 with it is as claimed in claim 2 it is a kind of with magnetic field control TIG electric arc weld seam tracking sensor,
Transmission mechanism connects the offset distance of encoder control stop sleeve, when worm and gear is driven to the right, i.e., stop sleeve to
When right offset distance reaches maximum, the distance that electric arc scans to the left reaches maximum value, similarly, when worm and gear or so transmission, i.e.,
For stop sleeve when offset distance reaches maximum to the left, the distance that electric arc scans to the right reaches maximum value, the branch of encoder control at this time
The peak excursion distance of support set cylinder is corresponding with the electric arc scanning maximum distance of weld seam, and obtains the information of related electric arc to reality
Existing weld joint tracking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910004123.5A CN109530864B (en) | 2019-01-03 | 2019-01-03 | Welding seam tracking sensor for controlling TIG electric arc by magnetic field |
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|---|---|---|---|
| CN201910004123.5A CN109530864B (en) | 2019-01-03 | 2019-01-03 | Welding seam tracking sensor for controlling TIG electric arc by magnetic field |
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| CN109530864A true CN109530864A (en) | 2019-03-29 |
| CN109530864B CN109530864B (en) | 2021-03-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168198A (en) * | 2020-01-08 | 2020-05-19 | 湘潭大学 | Welding seam tracking sensor for controlling double-tungsten-electrode arc swing by magnetic field |
| CN114346538A (en) * | 2022-01-19 | 2022-04-15 | 湘潭大学 | Welding gun pose identification method based on multi-axis linear Hall effect sensor |
| CN114393279A (en) * | 2022-01-19 | 2022-04-26 | 湘潭大学 | Magnetic control arc welding seam tracking sensing device adopting double MEMS magnetic field intensity sensors |
| CN114393280A (en) * | 2022-03-10 | 2022-04-26 | 湘潭大学 | Large-curvature welding line deviation identification method based on asymmetric longitudinal magnetic field sensing |
| CN114700588A (en) * | 2022-03-04 | 2022-07-05 | 湘潭大学 | Welding seam identification method for controlling arc rotation through electric field |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0263684A (en) * | 1988-08-29 | 1990-03-02 | Mitsubishi Heavy Ind Ltd | Method for profiling weld line |
| CN101224520A (en) * | 2007-01-17 | 2008-07-23 | 湘潭大学 | Magnetic controlling arc sensor welding line automatic tracking and controlling method |
| CN102825364A (en) * | 2012-09-12 | 2012-12-19 | 湘潭大学 | Magnetic-control arc sensor device applied in seam tracking |
| CN104816079A (en) * | 2015-04-22 | 2015-08-05 | 上海工程技术大学 | Rotary magnetic field generating device for welding and working method thereof |
| 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 |
| CN108856973A (en) * | 2018-06-14 | 2018-11-23 | 温州大学 | A kind of arc welding system of adjustable externally-applied magnetic field |
-
2019
- 2019-01-03 CN CN201910004123.5A patent/CN109530864B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0263684A (en) * | 1988-08-29 | 1990-03-02 | Mitsubishi Heavy Ind Ltd | Method for profiling weld line |
| CN101224520A (en) * | 2007-01-17 | 2008-07-23 | 湘潭大学 | Magnetic controlling arc sensor welding line automatic tracking and controlling method |
| CN102825364A (en) * | 2012-09-12 | 2012-12-19 | 湘潭大学 | Magnetic-control arc sensor device applied in seam tracking |
| CN104816079A (en) * | 2015-04-22 | 2015-08-05 | 上海工程技术大学 | Rotary magnetic field generating device for welding and working method thereof |
| 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 |
| CN108856973A (en) * | 2018-06-14 | 2018-11-23 | 温州大学 | A kind of arc welding system of adjustable externally-applied magnetic field |
Non-Patent Citations (1)
| Title |
|---|
| 陈树君，王学霞: "磁控电弧旋转磁场发生装置的设计", 《电焊机》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168198A (en) * | 2020-01-08 | 2020-05-19 | 湘潭大学 | Welding seam tracking sensor for controlling double-tungsten-electrode arc swing by magnetic field |
| CN114346538A (en) * | 2022-01-19 | 2022-04-15 | 湘潭大学 | Welding gun pose identification method based on multi-axis linear Hall effect sensor |
| CN114393279A (en) * | 2022-01-19 | 2022-04-26 | 湘潭大学 | Magnetic control arc welding seam tracking sensing device adopting double MEMS magnetic field intensity sensors |
| CN114393279B (en) * | 2022-01-19 | 2023-11-14 | 湘潭大学 | Weld joint tracking and sensing system based on double MEMS magnetic field intensity sensors |
| CN114346538B (en) * | 2022-01-19 | 2024-01-30 | 湘潭大学 | Welding gun pose recognition method based on multi-axis linear Hall effect sensor |
| CN114700588A (en) * | 2022-03-04 | 2022-07-05 | 湘潭大学 | Welding seam identification method for controlling arc rotation through electric field |
| CN114700588B (en) * | 2022-03-04 | 2023-07-18 | 湘潭大学 | Weld joint identification method for electric field to control arc rotation |
| CN114393280A (en) * | 2022-03-10 | 2022-04-26 | 湘潭大学 | Large-curvature welding line deviation identification method based on asymmetric longitudinal magnetic field sensing |
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