CN110744171A - Automatic welding equipment and method with external magnetic field - Google Patents
Automatic welding equipment and method with external magnetic field Download PDFInfo
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- CN110744171A CN110744171A CN201911190577.2A CN201911190577A CN110744171A CN 110744171 A CN110744171 A CN 110744171A CN 201911190577 A CN201911190577 A CN 201911190577A CN 110744171 A CN110744171 A CN 110744171A
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- adjusting mechanism
- position adjusting
- driving
- magnetic field
- driving piece
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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
- B23K9/08—Arrangements or circuits for magnetic control of the arc
Abstract
The invention discloses an automatic welding device and method with an external magnetic field, wherein the automatic welding device comprises: the welding gun unit comprises a welding gun and a first driving piece which are connected, and the first driving piece is connected with a first end of the first position adjusting mechanism; the coil unit comprises a magnetic coil and a second driving piece which are connected, the second driving piece is connected with the second end of the first position adjusting mechanism, and the driving direction is parallel to that of the first driving piece; the second position adjusting mechanism is connected with the first position adjusting mechanism, and the adjusting direction of the second position adjusting mechanism is vertical to that of the first position adjusting mechanism; the third position adjusting mechanism is connected with the second position adjusting mechanism, and the adjusting direction of the third position adjusting mechanism is parallel to the first position adjusting mechanism and is vertical to the second position adjusting mechanism. The invention improves the welding seam forming and improves the welding quality by controlling the electric arc through the magnetic field.
Description
Technical Field
The invention belongs to the technical field of welding equipment, and particularly relates to automatic welding equipment and method with an external magnetic field.
Background
The traditional thick plate welding needs a large groove, so that the cost is high, and the large groove welding seam is easy to form stress concentration, so that the defects of cracks, air holes and the like are caused, and the welding quality is seriously influenced. In recent years, magnetic control welding derived by connecting a magnetic field with a welding technology is emphasized due to the advantage of improving the mechanical property of a welding joint, the magnetic control welding technology introduces the magnetic field in the welding, crystal grains can be refined due to the stirring effect of the magnetic field, the mechanical property of the welding joint is improved, and the control of the magnetic field on the swing of an electric arc can reasonably distribute welding heat input on the side wall and the bottom, so that a well-formed welding joint is obtained.
Disclosure of Invention
In order to solve the problems of overlarge groove and overlarge consumption of welding materials in traditional thick plate welding and poor welding quality, the invention provides automatic welding equipment and method with an externally applied magnetic field.
The technical purpose is achieved, the technical effect is achieved, and the invention is realized through the following technical scheme:
in a first aspect, the present invention provides an automatic welding device with an applied magnetic field, comprising:
a first position adjustment mechanism;
the welding gun unit comprises a welding gun and a first driving piece which are connected, and the first driving piece is connected with the first end of the first position adjusting mechanism;
the coil unit comprises a magnetic coil and a second driving piece which are connected, the second driving piece is connected with a second end which is arranged on the first position adjusting mechanism and opposite to the first end, and the driving direction of the second driving piece is parallel to that of the first driving piece; the first position adjusting mechanism is used for adjusting the relative distance between the coil unit and the welding gun unit;
the second position adjusting mechanism is connected with the first position adjusting mechanism, and the adjusting direction of the second position adjusting mechanism is vertical to that of the first position adjusting mechanism;
the third position adjusting mechanism is connected with the second position adjusting mechanism; the adjusting direction of the first position adjusting mechanism is parallel to the first position adjusting mechanism and is vertical to the second position adjusting mechanism.
As a further improvement of the present invention, the first position adjustment mechanism includes a bottom plate, and a cam, a third driving member, a first auxiliary member and a second auxiliary member provided on the bottom plate; the third driving piece is connected with the cam, and the driving direction of the third driving piece is parallel to the driving directions of the first driving piece and the second driving piece;
one end of the first auxiliary part and one end of the second auxiliary part are respectively connected with two opposite sides of the cam, and the other ends of the first auxiliary part and the second auxiliary part are respectively connected with the first driving part and the second driving part; when the cam is driven by the third driving piece to move, the first auxiliary piece and the second auxiliary piece move oppositely.
As a further improvement of the present invention, the first auxiliary member and the second auxiliary member have the same structure, and each of the first auxiliary member and the second auxiliary member includes a wheel, an elastic rod and a guide block;
the wheel is in contact with the side wall of the cam;
the guide block is arranged on the bottom plate;
one end of the elastic rod is connected with the guide block, and the other end of the elastic rod penetrates through the guide block and then is connected with the corresponding first driving piece or second driving piece;
when the cam is driven to move by the third driving member, the wheels of the first and second auxiliary members move along the cam surfaces, so that the first and second driving members move towards each other.
As a further improvement of the present invention, the first driving member and the second driving member are both air cylinders.
As a further improvement of the present invention, the adjustment direction of the second position adjustment mechanism is a horizontal direction, and the adjustment directions of the first position adjustment mechanism and the third position adjustment mechanism are vertical directions.
As a further improvement of the present invention, the automatic welding equipment with external magnetic field further comprises a chassis and a driving device, wherein the first position adjusting mechanism is arranged on the chassis; the driving device comprises a power assembly, a rolling assembly and a force transmission assembly, and the power assembly is positioned on the chassis; the rolling assembly is rotatably connected with the chassis and connected with the power assembly through the force transmission assembly to drive the automatic welding equipment with the external magnetic field to move to a specified position.
As a further improvement of the present invention, the power assembly includes a first motor; the rolling assembly comprises four wheels, a first rotating shaft and a second rotating shaft, and the wheels are respectively and rotatably arranged at the bottom of the chassis; two ends of the first rotating shaft and the second rotating shaft are respectively connected with corresponding wheels and are rotatably arranged at the bottom of the chassis; the power transmission assembly comprises a first gear, a second gear and a first belt, the first gear is connected with an output shaft of the first motor, the second gear is connected with the first rotating shaft, and the first belt is connected to the first gear and the second gear.
In a second aspect, the present invention provides a welding method for an automatic welding device based on an applied magnetic field according to any one of the first aspect, wherein the method comprises:
based on a calculation formula of total magnetic induction intensity at the welding seam, calculating a position relation parameter between the welding seam position and a magnetic coil in a coil unit:
and adjusting the positions of the welding gun unit and the coil unit by utilizing the first position adjusting mechanism, the second position adjusting mechanism and the second position adjusting mechanism based on the position relation parameter, so that the positions of the coil unit and the welding seam are matched with the position relation parameter.
As a further improvement of the present invention, the calculation formula of the total magnetic induction intensity is:
wherein, BrFor radial magnetic induction at any point in the space of a limited long-pass electromagnetic coil, BcFor tangential magnetic induction, BzAxial magnetic induction intensity; Δ h1＝L-h，Δh2＝L-h；μ0Is the spatial magnetic permeability; i is the energizing current in the magnetic coil; r is the magnetic coil radius; r is the distance from the center of the cross section of the magnetic coil to the weld joint; l is the length of the magnet coil and h is the distance of the weld location projected in the direction of the length of the magnet coil to the center of the length of the magnet coil.
As a further improvement of the present invention, the step of adjusting the positions of the torch unit and the coil unit using the first position adjustment mechanism, the second position adjustment mechanism, and the second position adjustment mechanism based on the position parameter further includes:
the first position adjusting mechanism, the second position adjusting mechanism, and the second position adjusting mechanism are transported to a specified position by a driving device so that a weld is located between the welding gun unit and the coil unit.
The invention has the beneficial effects that:
in the welding process, the radian of the arc swing (in the welding arc, a large amount of charged particles are concentrated in an arc column flashing bright area, the charged ions can bear Lorentz force in a magnetic field, and the swing of the arc can be controlled by controlling the size and the direction of an external magnetic field) is controlled by adjusting the magnetic induction intensity, the alternating-current magnetic field is synthesized, the interaction of the arc and a molten pool generates an electromagnetic stirring effect, the crystallization and heat transfer processes of liquid metal in the molten pool are changed, crystal grains are refined, and the mechanical property of a welding seam is improved.
The invention adds the alternating current magnetic field on the basis of the traditional electric arc welding, improves the welding seam formation and the welding quality by controlling the electric arc through the magnetic field, can be applied to the field of narrow gap welding by reasonably setting the magnetic field parameters, and has very strong application prospect.
Drawings
FIG. 1 is a schematic diagram of an overall structure of an automatic welding apparatus with an external magnetic field according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a first position adjustment mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third position adjustment mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a driving device according to an embodiment of the present invention;
wherein:
1-a first position adjustment mechanism; 101-a base plate; 102-cam, 103-third driver; 104-wheels; 105-a resilient rod; 106-a guide block; 2-a second position adjustment mechanism; 3-a third position adjustment mechanism; 4-a welding torch unit; 401-a welding torch; 402-a first drive member; 5-a coil unit; 501-a magnetic coil; 502-a second driver; 6-a chassis; 7-a drive device; 701-a power assembly; 702-rolling assembly, 8-control box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
Example 1
The embodiment of the invention provides automatic welding equipment with an external magnetic field, which comprises:
a first position adjustment mechanism 1;
the welding gun unit 4 comprises a welding gun 401 and a first driving piece 402 which are connected, and the first driving piece 402 is connected with a first end of the first position adjusting mechanism 1;
a coil unit 5 including a magnetic coil 501 and a second driving member 502 connected to each other, the second driving member 502 being connected to a second end of the first position adjustment mechanism 1, the second end being disposed opposite to the first end, and a driving direction of the second driving member being parallel to a driving direction of the first driving member 402; the first position adjustment mechanism 1 is used for adjusting the relative distance between the coil unit 5 and the welding gun unit 4;
the second position adjusting mechanism 2 is connected with the first position adjusting mechanism 1, and the adjusting direction of the second position adjusting mechanism is vertical to that of the first position adjusting mechanism 1;
a third position adjusting mechanism 3 connected to the second position adjusting mechanism 2; the adjusting direction of the first position adjusting mechanism is parallel to that of the first position adjusting mechanism 1 and is vertical to that of the second position adjusting mechanism 2;
and the control box 8 is internally provided with a controller, and the output end of the controller is respectively connected with the first position adjusting mechanism, the second position adjusting mechanism, the third position adjusting mechanism, the welding gun unit and the coil unit to control the working state of each electric device.
In a specific implementation manner of the embodiment of the present invention, the first position adjustment mechanism 1 includes a bottom plate 101, and a cam 102, a third driving member 103, a first auxiliary member and a second auxiliary member, which are disposed on the bottom plate 101; the third driving member 103 is connected with the cam 102, and the driving direction of the third driving member is parallel to the driving direction of the first driving member 402 and the second driving member 502;
one end of each of the first auxiliary member and the second auxiliary member is connected to two opposite sides of the cam 102, and the other end of each of the first auxiliary member and the second auxiliary member is connected to the first driving member 402 and the second driving member 502; when the cam 102 is driven by the third driving element 103 to move, the first auxiliary element and the second auxiliary element move in opposite directions, and in specific implementation, the third driving element 3 may be driven by a screw rod.
Specifically, the first auxiliary member and the second auxiliary member have the same structure, and each of the first auxiliary member and the second auxiliary member includes a wheel 104, an elastic rod 105, and a guide block 106;
the wheel 104 is in contact with the side wall of the cam 102;
the guide block 106 is arranged on the bottom plate 101;
one end of the elastic rod 105 is connected with the wheel 104, and the other end of the elastic rod penetrates through the guide block 106 and then is connected with the corresponding first driving piece 402 or second driving piece 502;
when the cam 102 is driven by the third driving member 103, the wheels 104 of the first and second auxiliary members move along the surface of the cam 102, so that the first and second driving members 402 and 502 move toward each other.
In a specific implementation manner of the embodiment of the present invention, the first driving member 402 and the second driving member 502 are both air cylinders, and are used for driving the corresponding welding torch 401 or the magnetic coil 501 to perform a linear motion.
In a specific implementation process, the adjusting direction of the second position adjusting mechanism 2 can be set to be a horizontal direction, and the adjusting direction of the third position adjusting mechanism 3 can be set to be a vertical direction.
Example 2
Based on example 1, the inventive example differs from example 1 in that:
the automatic welding equipment with the applied magnetic field further comprises a chassis 6 and a driving device 7, wherein the driving device 7 comprises a power assembly 701, a rolling assembly 702 and a force transmission assembly (not shown in the figure), and the power assembly 701 is connected with the chassis 6; the rolling component 702 is rotatably connected with the chassis 6 and connected with the power component 701 through a force transmission component to drive the automatic welding equipment with an external magnetic field to move to a specified position.
In a specific implementation of the embodiment of the present invention, the power assembly 701 includes a first motor; the rolling assembly 702 comprises four wheels, a first rotating shaft and a second rotating shaft, and each wheel is rotatably arranged at the bottom of the chassis 6; two ends of the first rotating shaft and the second rotating shaft are respectively connected with corresponding wheels and are rotatably arranged at the bottom of the chassis 6; the power transmission assembly comprises a first gear, a second gear and a first belt, the first gear is connected with an output shaft of the first motor, the second gear is connected with the first rotating shaft, and the first belt is connected to the first gear and the second gear.
Example 3
The invention provides a welding method of automatic welding equipment based on an external magnetic field in any one of embodiment 1 or 2, which comprises the following steps:
(1) based on the calculation formula of the total magnetic induction intensity at the weld joint, the position relation parameter between the weld joint position and the magnetic coil 501 in the coil unit 5 is calculated:
(2) and adjusting the positions of the welding gun unit 4 and the coil unit 5 by utilizing the first position adjusting mechanism 1, the second position adjusting mechanism 2 and the second position adjusting mechanism 2 based on the position relation parameter, so that the positions of the coil unit 5 and the welding seam position are matched with the position relation parameter.
As a further improvement of the present invention, the calculation formula of the total magnetic induction intensity is:
wherein, BrIs the radial magnetic induction intensity of any point in the space of the limited long-pass electromagnetic coil 501, BcFor tangential magnetic induction, BzAxial magnetic induction intensity; Δ h1＝L-h，Δh2＝L-h；μ0Is the spatial magnetic permeability; i is the energizing current in the magnetic coil 501; r is the magnetic coil 501 radius; r is the distance from the center of the cross section of the magnetic coil 501 to the weld; l is the length of magnet coil 501 and h is the distance of the weld location projected in the direction of the length of magnet coil 501 to the center of the length of magnet coil 501.
Further, the step of adjusting the positions of the welding gun unit 4 and the coil unit 5 by using the first position adjusting mechanism 1, the second position adjusting mechanism 2 and the second position adjusting mechanism 2 based on the position parameters further comprises:
the first position adjustment mechanism 1, the second position adjustment mechanism 2, and the second position adjustment mechanism 2 are transported to the specified positions by the drive device 7 so that the weld is located between the welding gun unit 4 and the coil unit 5.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An applied magnetic field automatic welding apparatus, comprising:
a first position adjustment mechanism;
the welding gun unit comprises a welding gun and a first driving piece which are connected, and the first driving piece is connected with the first end of the first position adjusting mechanism;
the coil unit comprises a magnetic coil and a second driving piece which are connected, the second driving piece is connected with a second end which is arranged on the first position adjusting mechanism and opposite to the first end, and the driving direction of the second driving piece is parallel to that of the first driving piece; the first position adjusting mechanism is used for adjusting the relative distance between the coil unit and the welding gun unit;
the second position adjusting mechanism is connected with the first position adjusting mechanism, and the adjusting direction of the second position adjusting mechanism is vertical to that of the first position adjusting mechanism;
and the third position adjusting mechanism is connected with the second position adjusting mechanism, and the adjusting direction of the third position adjusting mechanism is parallel to the first position adjusting mechanism and is vertical to the second position adjusting mechanism.
2. The automatic welding equipment with external magnetic field as claimed in claim 1, wherein: the first position adjusting mechanism comprises a bottom plate, and a cam, a third driving piece, a first auxiliary piece and a second auxiliary piece which are arranged on the bottom plate; the third driving piece is connected with the cam, and the driving direction of the third driving piece is parallel to the driving directions of the first driving piece and the second driving piece;
one end of the first auxiliary part and one end of the second auxiliary part are respectively connected with two opposite sides of the cam, and the other ends of the first auxiliary part and the second auxiliary part are respectively connected with the first driving part and the second driving part; when the cam is driven by the third driving piece to move, the first auxiliary piece and the second auxiliary piece move oppositely.
3. The automatic welding equipment with external magnetic field as claimed in claim 2, wherein: the first auxiliary part and the second auxiliary part have the same structure and respectively comprise a wheel, an elastic rod and a guide block;
the wheel is in contact with the side wall of the cam;
the guide block is arranged on the bottom plate;
one end of the elastic rod is connected with the wheel, and the other end of the elastic rod penetrates through the guide block and then is connected with the corresponding first driving piece or second driving piece;
when the cam is driven to move by the third driving member, the wheels of the first and second auxiliary members move along the cam surfaces, so that the first and second driving members move towards each other.
4. The automatic welding equipment with external magnetic field as claimed in claim 1, wherein: the first driving piece and the second driving piece are both cylinders.
5. The automatic welding equipment with external magnetic field as claimed in claim 1, wherein: the adjusting direction of the second position adjusting mechanism is the horizontal direction, and the adjusting directions of the first position adjusting mechanism and the third position adjusting mechanism are the vertical direction.
6. The automatic welding equipment with external magnetic field as claimed in claim 1, wherein: the automatic welding equipment with the external magnetic field further comprises a chassis and a driving device, and the first position adjusting mechanism is arranged on the chassis; the driving device comprises a power assembly, a rolling assembly and a force transmission assembly, and the power assembly is positioned on the chassis; the rolling assembly is rotatably connected with the chassis and connected with the power assembly through the force transmission assembly to drive the automatic welding equipment with the external magnetic field to move to a specified position.
7. The automatic welding equipment with external magnetic field as claimed in claim 6, wherein: the power assembly comprises a first motor; the rolling assembly comprises four wheels, a first rotating shaft and a second rotating shaft, and the wheels are respectively and rotatably arranged at the bottom of the chassis; two ends of the first rotating shaft and the second rotating shaft are respectively connected with corresponding wheels and are rotatably arranged at the bottom of the chassis; the power transmission assembly comprises a first gear, a second gear and a first belt, the first gear is connected with an output shaft of the first motor, the second gear is connected with the first rotating shaft, and the first belt is connected to the first gear and the second gear.
8. A welding method of an automatic welding device based on an applied magnetic field according to any one of claims 1 to 7, characterized in that:
based on a calculation formula of total magnetic induction intensity at the welding seam, calculating a position relation parameter between the welding seam position and a magnetic coil in a coil unit:
and adjusting the positions of the welding gun unit and the coil unit by utilizing the first position adjusting mechanism, the second position adjusting mechanism and the second position adjusting mechanism based on the position relation parameter, so that the positions of the coil unit and the welding seam are matched with the position relation parameter.
9. The method of claim 8, wherein the step of applying a magnetic field comprises: the calculation formula of the total magnetic induction intensity is as follows:
wherein, BrFor radial magnetic induction at any point in the space of a limited long-pass electromagnetic coil, BcFor tangential magnetic induction, BzAxial magnetic induction intensity; Δ h1＝L-h，Δh2＝L-h；μ0Is the spatial magnetic permeability; i is the energizing current in the magnetic coil; r is the magnetic coil radius; r is the distance from the center of the cross section of the magnetic coil to the weld joint; l is the length of the magnet coil and h is the distance of the weld location projected in the direction of the length of the magnet coil to the center of the length of the magnet coil.
10. The method of claim 8, wherein the step of applying a magnetic field comprises: the step of adjusting the positions of the welding gun unit and the coil unit by using the first position adjusting mechanism, the second position adjusting mechanism and the second position adjusting mechanism based on the position parameters further comprises the following steps:
the first position adjusting mechanism, the second position adjusting mechanism, and the second position adjusting mechanism are transported to a specified position by a driving device so that a weld is located between the welding gun unit and the coil unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911190577.2A CN110744171A (en) | 2019-11-28 | 2019-11-28 | Automatic welding equipment and method with external magnetic field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911190577.2A CN110744171A (en) | 2019-11-28 | 2019-11-28 | Automatic welding equipment and method with external magnetic field |
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| CN110744171A true CN110744171A (en) | 2020-02-04 |
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| CN2499166Y (en) * | 2001-10-17 | 2002-07-10 | 上海富士工器有限公司 | Mechanical curve welding seam tracing device |
| CN101474733A (en) * | 2009-01-16 | 2009-07-08 | 山东科技大学 | Method for welding shipping container top reinforcing plate and welding robot |
| CN104668847A (en) * | 2015-02-13 | 2015-06-03 | 杭州焊林科技有限公司 | Welding equipment |
| KR20180089278A (en) * | 2017-01-30 | 2018-08-08 | 가부시키가이샤 고베 세이코쇼 | Arc welding device, arc welding method, and magnetism control device for arc welding |
| CN108856973A (en) * | 2018-06-14 | 2018-11-23 | 温州大学 | A kind of arc welding system of adjustable externally-applied magnetic field |
| CN211072170U (en) * | 2019-11-28 | 2020-07-24 | 湖北文理学院 | Automatic welding equipment with external magnetic field |
-
2019
- 2019-11-28 CN CN201911190577.2A patent/CN110744171A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2499166Y (en) * | 2001-10-17 | 2002-07-10 | 上海富士工器有限公司 | Mechanical curve welding seam tracing device |
| CN101474733A (en) * | 2009-01-16 | 2009-07-08 | 山东科技大学 | Method for welding shipping container top reinforcing plate and welding robot |
| CN104668847A (en) * | 2015-02-13 | 2015-06-03 | 杭州焊林科技有限公司 | Welding equipment |
| KR20180089278A (en) * | 2017-01-30 | 2018-08-08 | 가부시키가이샤 고베 세이코쇼 | Arc welding device, arc welding method, and magnetism control device for arc welding |
| CN108856973A (en) * | 2018-06-14 | 2018-11-23 | 温州大学 | A kind of arc welding system of adjustable externally-applied magnetic field |
| CN211072170U (en) * | 2019-11-28 | 2020-07-24 | 湖北文理学院 | Automatic welding equipment with external magnetic field |
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