CN207668669U - Welding gun with excitation unit - Google Patents
Welding gun with excitation unit Download PDFInfo
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- CN207668669U CN207668669U CN201721920364.7U CN201721920364U CN207668669U CN 207668669 U CN207668669 U CN 207668669U CN 201721920364 U CN201721920364 U CN 201721920364U CN 207668669 U CN207668669 U CN 207668669U
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- excitation unit
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Abstract
The utility model provides a kind of welding gun with excitation unit, the welding gun, which has, to be arranged in external excitation unit, the excitation unit includes excitation main body and is generated after the coil being located in excitation main body, the excitation unit energization to control the magnetic field of welding gun electric arc swing.The utility model is not under conditions of influencing welding gun overall dimensions and welding performance, one excitation unit is installed in exterior design, the weave control of Butt welding gun electric arc is realized using controllable square wave alternating magnetic field principle, greatly improve inclined arc and edge stop problem in welding process, it is easy to operate and comply with trend toward miniaturization.
Description
Technical field
The utility model is related to welding processing technical field more particularly to a kind of welding guns with excitation unit.
Background technology
In the pipeline welding of the key areas such as aviation/space flight, nuclear power station, military project, pharmacy, food, exist for wall thickness
In the pipeline welding of 3.5mm or more, traditional manual welding technique is all made of bevel and wire bond is added to connect, and generally opens V-type or U-shaped slope
Mouthful, some materials also carrying magnetics, these are all an important factor for restricting automatic welding, by material, the magnetic force welded
Size, direction are unpredictable, can not also be observed, highly difficult using conventional automatic welding realization, for needing swing complete
At the pipe fitting of welding procedure, needs electric carriage to carry out mechanical swing, cause welding gun part quite huge, mechanical hunting frequency
Difficulty reaches necessary requirement, and spatial position also be easy to cause and interferes, and causes magnetic attraction of the electric arc by material itself sometimes
And weld defect is formed, or even can not weld, so can only artificially realize electric arc swing using manual welding and overcome simultaneously
Electromagnetic interference, very high to the requirement of the operative skill of welder in this way, labor intensity increases, and cannot achieve automatic welding production, also can not
Labor intensity is reduced, welding quality is greatly reduced.
Therefore, it is necessary to provide a kind of improved welding gun with excitation unit to solve the above problems.
Utility model content
The purpose of this utility model is to provide one kind can effectively avoid inclined arc and it is small it is easy-operating have excitation unit
Welding gun.
To realize that above-mentioned purpose of utility model, the utility model provide a kind of welding gun with excitation unit, the weldering
Rifle, which has, to be arranged in external excitation unit, and the excitation unit includes excitation main body and around the coil being located in excitation main body,
The excitation unit generates to control the magnetic field of welding gun electric arc swing after being powered.
As a further improvement of the utility model, the excitation unit it is arc-shaped extension and it is coaxial with the torch body
Setting, the angular range that the excitation unit extends with respect to axle center is at 90 degree between 180 degree.
The excitation main body includes symmetrically arranged first excitation body and second as a further improvement of the utility model,
Excitation body, the coil include rotating around the first coil and the second coil being located on the first excitation body and the second excitation body.
The first excitation body and the setting of the second excitation body interval and the two as a further improvement of the utility model,
Between formed be located at both ends first interval and second interval, it is described first interval be greater than or equal to second interval.
The first coil enables clockwise about being located on the first excitation body as a further improvement of the utility model,
Formation first voltage is poor up and down for one excitation body, is enabled on the second excitation body on the second coil the second excitation of winding body counterclockwise
Lower formation second voltage is poor, and the first coil and the second coil are connected on the power supply of a generation square-wave voltage.
The orientation of the first excitation body and the second excitation body and welding gun as a further improvement of the utility model,
Direction of travel is consistent.
The welding gun includes the insulation sleeve being arranged outside the torch body as a further improvement of the utility model,
The first excitation body and the separation of the second excitation body are fixed on the insulation sleeve.
The insulation sleeve has cylindrical portion and from the cylindrical portion lower edges as a further improvement of the utility model,
Extend outwardly with the annular wall by excitation unit limit therebetween.
Several through-holes up and down are offered in the annular wall as a further improvement of the utility model, it is described
Also there is welding gun bolt, the excitation unit to be fixed on insulation sleeve by the bolt across through-hole.
The torch body also has the shunting to divided current gas as a further improvement of the utility model,
Device, to the nozzle of the tungsten bar and injecting protective gas that weld, the insulation sleeve is fixed on outside nozzle.
The utility model has the beneficial effects that：The utility model is in the condition for not influencing welding gun overall dimensions and welding performance
Under, one excitation unit is installed in exterior design, the pendulum of Butt welding gun electric arc is realized using controllable square wave alternating magnetic field principle
Dynamic control, greatly improves inclined arc and edge stop problem in welding process, easy to operate and comply with trend toward miniaturization.
Description of the drawings
Fig. 1 is the welding gun and wire-adding device and the three-dimensional combination figure of workpiece to be welded that the utility model has excitation unit.
Fig. 2 is the three-dimensional combination figure for the welding gun that the utility model has excitation unit.
Fig. 3 is the part isometric exploded view that there is the utility model the welding gun of excitation unit to take out excitation unit.
Fig. 4 is the further part isometric exploded views of Fig. 3.
Fig. 5 is the stereoscopic schematic diagram that there is the utility model the welding gun of excitation unit to take out excitation unit and insulation sleeve.
Fig. 6 is the connection principle schematic diagram of the excitation unit for the welding gun that the utility model has excitation unit.
Fig. 7 is the voltage oscillogram of the excitation unit connection for the welding gun that the utility model has excitation unit.
Fig. 8 (a)-(b) is the utility model, and there is electric arc of the welding gun of excitation unit when treating the welding of welder's part to swing
Schematic diagram.
Fig. 8 (c), which is the utility model, has appearance of weld of the welding gun of excitation unit after treating welder's part and completing welding
Schematic diagram.
Specific embodiment
The utility model is described in detail below with reference to embodiment shown in the drawings.But these embodiments are simultaneously unlimited
The utility model processed, the transformation in structure or function that those skilled in the art are made according to these embodiments are wrapped
Containing within the protection scope of the present utility model.
Referring to figs. 1 to shown in Fig. 8 (c), the utility model has the welding gun 100 of excitation unit with unification wire-adding device 200
One workpiece 300 to be welded is welded.In the present invention, workpiece 300 to be welded has double V-groove.
Shown in Fig. 5, the welding gun 100 is including torch body and encouraging outside the torch body is arranged
Magnetic device 1.The excitation unit 1 is including excitation main body 11 and around the coil 12 being located in excitation main body 11, the excitation unit 1
It is generated after energization to control the magnetic field of 100 electric arc of welding gun swing.The excitation main body 11 and the rich coil 12 being located at thereon to
It is one less, the excitation main body 11 is arc-shaped to be extended and be coaxially disposed with the torch body, and the excitation main body 11 is opposite
The angular range that axle center extends is at 90 degree between 180 degree.
In the utility model preferred embodiment, the excitation main body 11 includes symmetrically arranged first excitation body 111
With the second excitation body 112, the coil 12 includes rotating around first be located on the first excitation body 111 and the second excitation body 112
Coil 121 and the second coil 122.The first coil 121 and the second coil 122 are connected in series with.First excitation body, 111 He
Second excitation body 112 interval is arranged and forms the first interval 13 and the second interval 14 that are located at both ends, institute between the two
The first interval 13 is stated more than or equal to the second interval 14.In the utility model preferred embodiment, first interval, 13 Hes
Second interval 14 is in the same size.
Shown in referring to figure 6 and figure 7, the first coil 121 enables first to encourage clockwise about being located on the first excitation body 111
About 111 magnet formation first voltage is poor, and upper terminal voltage is higher than lower terminal voltage；Second coil, 122 winding counterclockwise
Enable the second about 112 excitation body formation second voltage poor on two excitation bodies 112, and upper terminal voltage is higher than lower terminal voltage；It is described
Second coil of the first coil 121 of 111 high voltage one end of the first excitation body and described second excitation body, 112 low-voltage one end
122 are connected, and are connected on the power supply of a generation square-wave voltage after the first coil 121 and the series connection of the second coil 122.Connection side
After wave power supply, according to right-hand screw rule, magnetic field is generated between 112 gap of the first excitation body 111 and the second excitation body and is made
100 electric arc of welding gun is obtained to be swung by the active force that the two is superimposed, by adjusting size of current, the direction of square-wave voltage, period,
To obtain the square wave field of corresponding rule.Size i.e. by adjusting square-wave AC current, thus it is possible to vary the power in magnetic field is realized
The width of the amplitude of oscillation；By the frequency for changing square-wave AC current, thus it is possible to vary the change frequency in magnetic field, to change the side of electric arc
To；By adjusting the size of square-wave AC current, the power in magnetic field is formed, to offset influence of the magnetic material to electric arc itself.
Shown in Fig. 5, in the utility model preferred embodiment, the torch body of the welding gun 100 has
Nozzle 3 to the tungsten bar 2, injecting protective gas that weld, the current divider 4 to divided current gas and be located at top to
The turncap 5 of fixed tungsten bar 2.The current divider 4 and turncap 5 are column structure, and the nozzle 3 is the ceramic structure of ring-shaped sleeve
And it is consistent with 2 axle center of tungsten bar.The welding gun 100 also has the clamp (not shown) for adjusting 2 weld length of tungsten bar, the turncap 5
It screws to fix tungsten bar 2.
With reference to shown in Fig. 3 to Fig. 5, the welding gun 100 also has the insulation sleeve 6 being arranged outside torch body, described to encourage
Magnetic device 1 is installed in 3 outside of the nozzle by insulation sleeve 6.The insulation sleeve 6 in I-shaped structure and its have fixation be arranged
Cylindrical portion 61 outside nozzle 3 and structure annular in shape is extended outwardly with by the excitation unit from 61 lower edges of the cylindrical portion
The annular wall 62 of 1 limit therebetween.Several through-holes 620 up and down are offered in the annular wall 62, the welding gun 100 is also
With bolt (not shown), the excitation main body 11 is fixed on insulation sleeve 6 by the bolt across through-hole 620.Described first
Excitation body 111 and 112 orientation of the second excitation body are consistent with 100 direction of travel of welding gun.The insulation sleeve 6 has heat-insulated work(
Effect, to protect coil 12.
With reference to shown in Fig. 8 (a)-(c), opens the source of welding current and corresponding welding current parameter, voltage parameter, pulse are set
Parameter, wire feed rate, welding gun 100 generates electric arc after starting welding, according to left hand rule, it can be determined that electric arc is in different cycles
Impact direction, i.e. the swinging arc direction of electric arc can by welding parameter adjustment, 100 direction of motion of the adjustment of square wave power and welding gun
To obtain the perfect weld seam of groove.
Certainly, the welding gun 100 in the application can apply TIG, MIG or MAG welding in, also can be applicable to electron beam or
In the high energy beam weldings such as plasma arc, as long as Motion Particles affected by magnetic fields can be generated in welding.
The utility model installs one under conditions of not influencing 100 overall dimensions of welding gun and welding performance, in exterior design
A excitation unit 1 is realized the weave control of Butt welding gun electric arc using controllable square wave alternating magnetic field principle, greatly improves weldering
Inclined arc and edge stop problem in termination process, easy to operate and comply with trend toward miniaturization, are solved when welding conventional magnetic material
The technical issues of automatic welding cannot achieve realizes and edge locked with current impulse synchronous synchronization.The utility model, which has, encourages
The welding gun 100 of magnetic device 1 can be applied in all positon pipeline welding, and whether carrying magnetic can not use tube material, from
And it improves the degree of automation of equipment, improve welding procedure and equipment working environment.
The series of detailed descriptions listed above only for the utility model possible embodiments it is specific
Illustrate, they are all without departing from made by the utility model skill spirit etc. not to limit the scope of protection of the utility model
Effect embodiment or change should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of welding gun with excitation unit, the welding gun has a torch body, it is characterised in that：The welding gun, which has, to be set
Set the excitation unit outside torch body, the excitation unit includes excitation main body and around the coil being located in excitation main body,
The excitation unit generates to control the magnetic field of welding gun electric arc swing after being powered.
2. the welding gun according to claim 1 with excitation unit, it is characterised in that：The arc-shaped extension of excitation unit
And be coaxially disposed with the torch body, the angular range that the excitation unit extends with respect to axle center is at 90 degree between 180 degree.
3. the welding gun according to claim 2 with excitation unit, it is characterised in that：The excitation main body includes symmetrically setting
The the first excitation body and the second excitation body set, the coil include rotating around be located on the first excitation body and the second excitation body
One coil and the second coil.
4. the welding gun according to claim 3 with excitation unit, it is characterised in that：The first excitation body and second is encouraged
Magnet interval is arranged and forms the first interval and the second interval that are located at both ends between the two, and first interval is more than
Or equal to the second interval.
5. the welding gun according to claim 3 with excitation unit, it is characterised in that：The first coil winding clockwise
Enable the first excitation body or more formation first voltage poor on the first excitation body, the second coil second excitation of winding counterclockwise
Enabling the second excitation body be formed up and down on body, second voltage is poor, and the first coil and the second coil are connected to a generation side
On the power supply of wave voltage.
6. the welding gun according to claim 3 with excitation unit, it is characterised in that：The first excitation body and second is encouraged
The orientation of magnet is consistent with welding gun direction of travel.
7. the welding gun according to claim 3 with excitation unit, it is characterised in that：The welding gun includes being arranged described
Insulation sleeve outside torch body, the first excitation body and the separation of the second excitation body are fixed on the insulation sleeve.
8. the welding gun according to claim 7 with excitation unit, it is characterised in that：The insulation sleeve have cylindrical portion and
Extend outwardly from the cylindrical portion lower edges with the annular wall by excitation unit limit therebetween.
9. the welding gun according to claim 8 with excitation unit, it is characterised in that：It is offered in the annular wall up and down
Also there is bolt, the excitation unit to be fixed on insulation sleeve by the bolt across through-hole for several through-holes of perforation, the welding gun
On.
10. the welding gun according to claim 7 with excitation unit, it is characterised in that：The torch body, which also has, to be used
With the current divider of divided current gas, to the nozzle of the tungsten bar and injecting protective gas that weld, the insulation sleeve is fixed on spray
Outside mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920364.7U CN207668669U (en) | 2017-12-30 | 2017-12-30 | Welding gun with excitation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920364.7U CN207668669U (en) | 2017-12-30 | 2017-12-30 | Welding gun with excitation unit |
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| Publication Number | Publication Date |
|---|---|
| CN207668669U true CN207668669U (en) | 2018-07-31 |
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ID=62973121
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721920364.7U Active CN207668669U (en) | 2017-12-30 | 2017-12-30 | Welding gun with excitation unit |
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| CN (1) | CN207668669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-12-30 CN CN201721920364.7U patent/CN207668669U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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