CN205380361U - Laser welding device based on pulsed magnetic field - Google Patents
Laser welding device based on pulsed magnetic field Download PDFInfo
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- CN205380361U CN205380361U CN201620152190.3U CN201620152190U CN205380361U CN 205380361 U CN205380361 U CN 205380361U CN 201620152190 U CN201620152190 U CN 201620152190U CN 205380361 U CN205380361 U CN 205380361U
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Abstract
The utility model provides a laser welding device based on pulsed magnetic field belongs to the laser welding technology field, including laser instrument, laser output head, pulsed magnetic field power and magnetic field generator, the laser instrument with the first coupling of laser output, the pulsed magnetic field power with magnetic field generator coupling, laser output head are used for focusing on the laser beam that the laser instrument sent the face of weld of work piece, and magnetic field generator is used for producing the pulsed magnetic field that plasma distributes and flow in the welding molten bath that control laser welding in -process produced under the excitation of pulsed magnetic field power. The utility model provides a laser welding device based on pulsed magnetic field can control plasma density distribution in the laser transmission passageway effectively, improves the energy coupling efficiency of laser beam and work piece material, and through the change of magnetic field to laser welding in -process molten bath flow behavior, can improve the inhomogeneous problem of distribution of element in the molten bath to improve the shaping quality of welding seam.
Description
Technical field
This utility model relates to laser welding technology field, in particular to a kind of laser soldering device based on pulsed magnetic field.
Background technology
Laser welding technology has energy density height, speed of welding is fast, appearance of weld good, heat affected area is little and is prone to the advantages such as Automated condtrol, causes the extensive concern of research worker.In laser welding technology, quality of weld seam molding is the key index evaluating laser welding apparatus.And existing laser welding apparatus is when welding workpiece, uneven or that welding wire dilution is insufficient when the filling silk laser weld problem of the Elemental redistribution that would be likely to occur in laser beam welding in molten bath, these situations can result in weld seam and stay, form hump or wine glass-shaped, be unfavorable for ensureing the forming quality of weld seam；Additionally, the photo plasma produced on laser weld passage also will have a strong impact on the coupling efficiency of workpiece and laser energy, reduce workpiece to the effective absorbance of laser beam energy, and then also can affect quality of weld seam molding.
Utility model content
The purpose of this utility model is in that to provide a kind of laser soldering device based on pulsed magnetic field, in laser beam welding, the flowing of the welding pool produced on workpiece is controlled by acting on the pulsed magnetic field on workpiece, and control the distribution of the plasma of generation on laser weld passage, to be effectively improved the quality of weld seam molding of workpiece.
To achieve these goals, the technical scheme that this utility model embodiment adopts is as follows:
This utility model embodiment provides a kind of laser soldering device based on pulsed magnetic field, including laser instrument, pulsed magnetic field power supply, for the laser delivery of laser beam focusing that described laser instrument is sent to workpiece and be used for producing pulsed magnetic field to control the magnetic field generator of produced plasma distribution and welding pool flowing in laser beam welding, described laser instrument couples with described laser delivery, and described pulsed magnetic field power supply couples with described magnetic field generator.
Further, described pulsed magnetic field power supply includes control circuit, voltage regulator circuit, charge circuit and discharge loop, the input of described voltage regulator circuit couples with external power source, the outfan of described voltage regulator circuit couples with described charge circuit input, the outfan of described charge circuit couples with the input of described discharge loop, the outfan of described discharge loop couples with described magnetic field generator, and described voltage regulator circuit, described charge circuit and described discharge loop all couple with described control circuit.
Further, described charge circuit includes the first electric capacity, second electric capacity and the first switch, described first switch includes the first link, first control end of the second link and conducting and disconnection for controlling described first link and described second link, described first controls end couples with described control circuit, the negative pole of described first electric capacity couples with described first link, the negative pole of described second electric capacity couples with described second link, the positive pole of described first electric capacity couples with the positive pole of described second electric capacity, described first link couples with the input of the outfan of described voltage regulator circuit and described discharge loop respectively.
Further, described magnetic field generator includes insulation shell, iron core and the induction coil being set in outside described iron core, described iron core and described induction coil are respectively positioned in described insulation shell, are filled with the firming agent for preventing described induction coil from deforming in described insulation shell.
Further, described induction coil is formed by copper pipe coiling, and in described copper pipe, circulation has cooling water.
Further, described induction coil includes 6 layer line circles, and the described coil of each layer includes 18 circle subcoils.
Further, it is provided with insulation film between adjacent two-layer coil and between two adjacent circle subcoils.
Further, also including numerical control table, NC table, described magnetic field generator is arranged on described numerical control table, NC table, and described workpiece is placed in the predeterminable area on described insulation shell surface, and wherein, the axis of described iron core is perpendicular to the solder side of described workpiece.
Further, also including numerical control table, NC table, described magnetic field generator and described workpiece and may be contained within described numerical control table, NC table, wherein, the axis of described iron core is parallel to the solder side of described workpiece.
Further, also including isochronous controller, described isochronous controller all couples with described laser instrument, described pulsed magnetic field power supply and described numerical control table, NC table.
The laser soldering device based on pulsed magnetic field that this utility model embodiment provides devises pulsed magnetic field power supply and magnetic field generator, magnetic field generator produces pulsed magnetic field under the excitation of pulsed magnetic field power supply, described pulsed magnetic field action is in laser beam welding, the flowing of welding pool can be controlled on the one hand, effectively improve that the Elemental redistribution in molten bath is uneven, the laser weld that fills silk time the welding wire insufficient problem of dilution, thus restrained effectively weld seam stay, the appearance of hump, wine glass-shaped, be favorably improved quality of weld seam molding；The change of the laser weld photo plasma Density Distribution above workpiece, form and position can also be controlled on the other hand, it is possible to improve the energy coupling efficiency of laser beam and material.
In addition, the magnetic field generator including iron core and induction coil of this utility model design is individual devices, installation site is controlled flexibly, the optional position on numerical control table, NC table can be placed on, and when the mounting means difference of magnetic field generator, the magnetic field of different directions can be produced, such as, magnetic field generator can be placed across on numerical control table, NC table, can also be placed longitudinally on numerical control table, NC table, wherein, time laterally disposed, the axis of iron core is parallel to the surface of numerical control table, NC table, time placed longitudinally, the axis of iron core is perpendicular to the surface of numerical control table, NC table, the concrete mounting means of magnetic field generator can be arranged according to the magnetic direction required for user.
Other feature and advantage of the present utility model will be set forth in description subsequently, and, partly become apparent from description, or understand by implementing this utility model embodiment.The purpose of this utility model and other advantages can be realized by structure specifically noted in the description write, claims and accompanying drawing and be obtained.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.Shown in accompanying drawing, of the present utility model above-mentioned and other purpose, feature and advantage will become apparent from.The part that accompanying drawing labelling instruction identical in whole accompanying drawings is identical.Deliberately do not draw accompanying drawing by actual size equal proportion convergent-divergent, it is preferred that emphasis is purport of the present utility model is shown.
Fig. 1 illustrates the structural representation of the laser soldering device based on pulsed magnetic field of the longitudinal magnetic field binding mode that this utility model embodiment provides；
Fig. 2 illustrates the module frame chart of the pulsed magnetic field power supply of a kind of laser soldering device based on pulsed magnetic field that this utility model embodiment provides；
Fig. 3 illustrates a kind of circuit structure diagram of the pulsed magnetic field power supply of a kind of laser soldering device based on pulsed magnetic field that this utility model embodiment provides；
Fig. 4 illustrates the structural representation of the magnetic field generator of a kind of laser soldering device based on pulsed magnetic field that this utility model embodiment provides；
Fig. 5 illustrate the longitudinal magnetic field binding mode that this utility model embodiment provides based on the position view of predeterminable area in the laser soldering device of pulsed magnetic field；
Fig. 6 illustrate the longitudinal magnetic field binding mode that this utility model embodiment provides based on the Distribution of Magnetic Field schematic diagram of predeterminable area in the laser soldering device of pulsed magnetic field；
Fig. 7 illustrates the structural representation of the laser soldering device based on pulsed magnetic field of the transverse magnetic field binding mode that this utility model embodiment provides.
Wherein, accompanying drawing labelling is respectively as follows:
Laser instrument 110；Conduction optical fiber 120；Laser delivery 130；External power source 200；Pulsed magnetic field power supply 300；Control circuit 310；Voltage regulator circuit 320；Charge circuit 330；Discharge loop 340；Magnetic field generator 400；Insulation shell 410；Iron core 420；Iron core axis 421；Iron core bottom surface 422；Predeterminable area 423；Induction coil 430；Numerical control table, NC table 500；Hoistable platform 510；Workpiece 600；Isochronous controller 700.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear, complete description, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
This utility model embodiment provides a kind of laser soldering device based on pulsed magnetic field, as shown in Figure 1, including laser instrument 110, laser delivery 130, pulsed magnetic field power supply 300 and magnetic field generator 400, laser instrument 110 couples with laser delivery 130, and pulsed magnetic field power supply 300 couples with magnetic field generator 400.
Wherein, laser delivery 130 is for the solder side of the laser beam focusing that sent by described laser instrument 110 to workpiece 600.Laser delivery 130 includes laser focusing module, and the light beam that laser instrument 110 sends incides laser focusing module through conduction optical fiber 120, and described light beam is focused on the solder side of workpiece 600 by described laser focusing module.Laser focusing module can adopt focus lens assembly.
There is charge and discharge loop, for producing pulse current under the effect of external control signal in pulsed magnetic field power supply 300.Magnetic field generator 400, for producing pulsed magnetic field under the excitation of pulse current produced by pulsed magnetic field power supply 300, can efficiently control the distribution of the plasma produced in laser beam welding and the flowing of welding pool by described pulsed magnetic field.Magnetic field generator 400 is individual devices, for instance, it is possible to for induction coil, by the magnetic field that magnetic field generator 400 produces, it is possible to efficiently control the plasma distribution produced in laser beam welding and welding pool flowing.Wherein, welding pool is the effigurate liquid metal part of tool formed on workpiece in welding process.
When the laser soldering device based on pulsed magnetic field that the present embodiment provides uses, the first step, first starting impulse magnetic field power supply 300, pulsed magnetic field power supply 300 driving magnetic field generator 400 produces pulsed magnetic field, acts on the solder side of workpiece 600；Second step, opens laser instrument 110, and the light beam that laser instrument 110 sends is focused on the solder side of workpiece 600 by laser delivery 130, and the workpiece 600 being arranged in magnetic field is welded by the laser beam focused on solder side according to default welding track.Wherein, described default welding track sets according to the shape in the region to be welded of workpiece 600 and the placement location of workpiece 600.Certainly, the above-mentioned first step and second step can also occur simultaneously.In laser beam welding, acting on the magnetic field on solder side can control the flowing of welding pool on the one hand, effectively improve that the Elemental redistribution in molten bath is uneven, the laser weld that fills silk time the welding wire insufficient problem of dilution, and effectively suppress weld seam to stay, the appearance of hump, wine glass-shaped, be favorably improved quality of weld seam molding；Acting on the magnetic field on solder side can also control the laser weld photo plasma above workpiece 600 on the other hand, described plasma is made up of a large amount of positive and negative ion and electronics etc., the kinetic-potential that charged particle occurs under the action of a magnetic field must cause the change of Laser Transmission passage plasma Density Distribution, form and position, under suitable process conditions, it is possible to improve the energy coupling efficiency of laser beam and material.
Concrete, as shown in Figure 2, described pulsed magnetic field power supply 300 includes control circuit 310, voltage regulator circuit 320, charge circuit 330 and discharge loop 340, the input of described voltage regulator circuit 320 couples with external power source 200, the outfan of described voltage regulator circuit 320 couples with described charge circuit 330 input, the outfan of described charge circuit 330 couples with the input of described discharge loop 340, the outfan of described discharge loop 340 couples with described magnetic field generator 400, described voltage regulator circuit 320, described charge circuit 330 and described discharge loop 340 all couple with described control circuit 310.Wherein, voltage regulator circuit 320 for being adjusted to high voltage direct current by the industrial-frequency alternating current that external power source 200 exports, and the voltage range of described high voltage direct current can be 200V-1300V；Described charge circuit 330 is for storing electricity；Described discharge loop 340 is for discharging to magnetic field generator 400, so that magnetic field generator 400 produces magnetic field, described control circuit 310 is for being controlled charging and discharging process.
As shown in Figure 3, in the present embodiment, the detailed description of the invention of pulsed magnetic field power supply 300 can be: described voltage regulator circuit 320 includes the 3rd switch K3, transformator TF, the 3rd electric capacity C3, the first diode D1, the second diode D2 and resistance R1, the 3rd switch K3 includes the 5th link, the 6th link and the 3rd controls end；Described charge circuit 330 includes the first electric capacity C1, the second electric capacity C2 and the first switch K1, described first switch K1 includes the first link, the second link and first controls end, wherein, first electric capacity C1 is storage capacitor, second electric capacity C2 is idle capacity, when needs relatively high-intensity magnetic field, idle capacity is in parallel with storage capacitor, to improve storage energy；Described discharge loop 340 includes second switch K2 and inductance L, described second switch K2 and includes the 3rd link, the 4th link and the second control end；Described control circuit 310 includes main control chip U1, and main control chip U1 can be single-chip microcomputer, DSP, ARM or FPGA etc..
As shown in Figure 3, the outfan of external power source 200 includes live wire end L and zero line side N, transformator TF includes the first terminals, the second terminals, the 3rd terminals and the 4th terminals, zero line side N and the three switchs the 5th link coupling of K3, first terminals of transformator TF couple with live wire L end, the 6th link coupling of second terminals of transformator TF and the 3rd switch K3,3rd terminals of transformator TF and the first output contact a coupling, the 4th terminals of transformator TF and one end coupling of the 3rd electric capacity C3.The other end of the 3rd electric capacity C3 and the negative couplings of the second diode D2, the negative pole of described second diode D2 and the positive pole coupling of the first diode D1, the positive pole of the second diode D2 and the first output contact a coupling.The negative pole of the first diode D1 couples with one end of resistance R1, the other end of resistance R1 couples with the 3rd link of the first the first link switching K1 and second switch K2 respectively, 4th link of second switch K2 couples with one end of inductance L, the other end of inductance L and the second output contact b coupling, the first link coupling of the negative pole of the first electric capacity C1 and the first switch K1, the positive pole of the first electric capacity C1 and the first output contact a coupling, second link of the first switch K1 and the negative couplings of the second electric capacity C2, the positive pole of the second electric capacity C2 and the positive pole of the first electric capacity C1 all couple with the first output contact a.
Wherein, the first output contact a and the second output contact b constitutes the outfan of pulsed magnetic field power supply 300, is used for connecting magnetic field generator 400.The first of first switch K1 controls end, second the 3rd control end controlling end and the 3rd switch K3 of second switch K2 all couples with main control chip U1, namely can pass through main control chip U1 and controls first link of the first switch K1 and the conducting of the second link and disconnection, the 3rd link of control second switch K2 and the conducting of the 4th link and disconnection and control conducting and the disconnection of the 3rd the 5th link switching K3 and the 6th link.In the present embodiment, the first switch K1, second switch K2, the 3rd switch K3 all can be preferably relay or reverse-blocking tetrode thyristor.
When main control chip U1 receives outside open command, control the 5th link and the conducting of the 6th link of the 3rd switch K3, the 220V50Hz industrial-frequency alternating current of external power source 200 output enters in voltage regulator circuit 320, after transformator TF and the three electric capacity C3 boosting, voltage stabilizing, again through the first diode D1, the second diode D2 and resistance R1 rectification, filtering, industrial-frequency alternating current is become and is adjusted to high voltage direct current, and then storage capacitor C1 is carried out quick charge；When main control chip U1 receives external pulse signal, main control chip U1 drives the 3rd link and the conducting of the 4th link of second switch K2, magnetic field generator 400 is discharged, so that the induction coil 430 in magnetic field generator 400 produces pulsed magnetic field.In addition, send control signals to the first of the first switch K1 by main control chip U1 and control end, control the first link and the conducting of the second link of the first switch K1, idle capacity can be started, in parallel by the second electric capacity C2 and the first electric capacity C1, the storage electric energy of the charge circuit 330 of pulsed magnetic field power supply 300 can be effectively improved, and then improve the magnetic field intensity that magnetic field generator 400 produces.Table 1 illustrates the important technological parameters of a kind of pulsed magnetic field power supply 300 that the present embodiment provides.As shown in table 1, the charging interval the shortest of the pulsed magnetic field power supply 300 that the present embodiment provides is 0.2 second, and discharge time the longest is 0.2 second.
The important technological parameters of the pulsed magnetic field power supply that table 1 the present embodiment provides
Additionally, for reducing energy consumption, saving electricity, have also been devised discharge loop collecting circuit in described pulsed magnetic field power supply 300, by described discharge loop collecting circuit, storage capacitor and idle capacity to storage capacitor or parallel connection is charged in turn, improves the efficiency of quick impulse electricity.
Further, in the present embodiment, as shown in Figure 4, magnetic field generator 400 includes insulation shell 410, iron core 420 and the induction coil 430 being set in outside described iron core 420, and described iron core 420 and described induction coil 430 are respectively positioned in described insulation shell 410.Wherein, described iron core 420 is cylindrical, and iron core 420 material is preferably 470 non-orientation silicon steels.Compared to the magnetic field generator 400 without iron core 420, the addition of iron core 420 effectively enhances magnetic field generator 400 intensity of produced pulsed magnetic field under the excitation of pulsed magnetic field power supply 300, and is effectively improved the uniformity of the Distribution of Magnetic Field of induction coil 430 end face.In addition, in order to prevent induction coil 430 problem on deformation because copper cash resilience causes, it is ensured that the intensity of induction coil 430 and toughness, thus affecting the performance of magnetic field generator 400, being filled with firming agent in described insulation shell 410, described firming agent can adopt epoxy resin and toughener configuration to form.
Owing to induction coil 430 is discharged by discharge loop 340 at short notice, induction coil 430 is likely to the instantaneous discharge current by thousands of peaces, and then produces the magnetic field of bigger intensity, it is clear that this process will supervene substantial amounts of Joule heat.Therefore, in this utility model embodiment, induction coil 430 preferably employs the copper pipe multiturn sandwich wound being coated with insulating glass silk and forms.In described copper pipe, circulation has cooling water, and the cooling water of flowing takes away the most Joule heat produced when induction coil 430 works.Effectively alleviate the Joule heat destruction to induction coil 430 by the mode of this water-cooling, improve the life-span of induction coil 430.
Concrete, described induction coil 430 include 6 layer line circles, the described coil of each layer includes 18 circle subcoils, certainly, according to required magnetic field size, the number of turn of the subcoil that the number of plies of the coil that induction coil 430 includes and the described coil of each layer include can also need design according to user.It should be noted that in the winding process of induction coil 430, in order to increase the class of insulation, be provided with insulation film between adjacent two-layer coil and between two adjacent circle subcoils.Described insulation film can be preferably Kapton, it is of course also possible to adopt polyethylene film, polyvinylidene difluoride membrane, polytetrafluoroethylene film etc..Table 2 illustrates the structural parameters of iron core 420 that the present embodiment provides and induction coil 430.As shown in table 2, preferred in the present embodiment, the internal diameter of induction coil 430 is 120mm, and external diameter is 240mm；Gap between adjacent two layers coil is 1.5mm, and the gap of adjacent two circle subcoils is 3.0mm；The height of induction coil 430, namely the induction coil 430 length on the axis direction of iron core 420 is 200mm；The external diameter of the copper pipe constituting induction coil 430 is 8mm；The height of iron core 420 is 205mm.
The iron core of table 2 the present embodiment offer and induction coil configuration parameter
To sum up, in the present embodiment, under the excitation of described pulsed magnetic field power supply 300, in described magnetic field generator 400, the magnetic field intensity of induction coil 430 end face can reach 1T.
The laser soldering device based on pulsed magnetic field that the present embodiment provides also includes numerical control table, NC table 500, numerical control table, NC table 500 is used for driving workpiece 600 to move, so that the laser beam relative motion that the solder side of workpiece 600 and laser delivery 130 send, and then complete the laser weld of workpiece 600.Preferably, numerical control table, NC table 500 is three-dimension numerical controlled workbench 500.
In addition, the magnetic field generator 400 of this utility model design is individual devices, installation site is controlled flexibly, the optional position on numerical control table, NC table 500 can be placed on, and when the mounting means difference of magnetic field generator 400, the magnetic field of different directions can be produced, such as, magnetic field generator 400 can be placed across on numerical control table, NC table 500, can also be placed longitudinally on numerical control table, NC table 500, wherein, time laterally disposed, iron core axis 421 is parallel to the surface of numerical control table, NC table 500, time placed longitudinally, iron core axis 421 is perpendicular to the surface of numerical control table, NC table 500, the concrete mounting means of magnetic field generator 400 can be arranged according to the magnetic direction required for user.
In the application, magnetic field generator 400 preferably employs the advantage of individual devices and is in that: its design does not rely on other devices in laser soldering device, compared with being set in, with by induction coil, the mode constituting magnetic field generator on laser delivery, security performance is better, and there is portability and motility, simultaneously it can be avoided that the Distribution of Magnetic Field that magnetic induction coil is produced by laser delivery produces impact, cause magnetic field bending, skewness etc..
Further, the laser soldering device based on pulsed magnetic field that the present embodiment provides mainly has two kinds of the action of a magnetic field patterns, including longitudinal magnetic field binding mode and transverse magnetic field binding mode.Wherein, during longitudinal magnetic field binding mode, magnetic field generator 400 is placed longitudinally on numerical control table, NC table 500, and during transverse magnetic field binding mode, magnetic field generator 400 is placed across on numerical control table, NC table 500.
Concrete, the embodiment of described longitudinal magnetic field binding mode is: as shown in Figure 1, described magnetic field generator 400 is longitudinally placed on described numerical control table, NC table 500, workpiece 600 is placed in the predeterminable area 423 on described insulation shell 410 surface, wherein, described insulation shell 410 surface is the surface parallel with iron core bottom surface of insulation shell 410.And make the region to be welded of workpiece 600 be positioned at described predeterminable area 423, now, in magnetic field generator 400, iron core axis 421 is perpendicular to the solder side of described workpiece 600.It should be noted that, described predeterminable area 423 is according to the concrete profile set of magnetic field generator 400, the magnetic direction that predeterminable area 423 internal magnetic field generator 400 produces is less with the misalignment angle of iron core axis 421, described misalignment angle range for 0～10 degree, now, workpiece 600 is placed on described predeterminable area 423, it is possible to the approximate magnetic direction thought on the solder side acting on workpiece 600 is vertical with described solder side and is uniformly distributed.As shown in Figure 5, the direction of iron core axis 421 is Z-direction, three-dimensional cartesian coordinate system is set up according to Z-direction, iron core bottom surface 422 is parallel with X/Y plane, for instance, iron core bottom surface 422 diameter is 55mm, now, predeterminable area 423 is the border circular areas concentric with iron core bottom surface 422 that diameter is 36mm, and in XZ plane the Distribution of Magnetic Field of predeterminable area 423 as shown in Figure 6, in Fig. 6, the direction of arrow is magnetic direction.
The embodiment of described transverse magnetic field binding mode is: as it is shown in fig. 7, described magnetic field generator 400 and described workpiece 600 may be contained within described workbench, wherein, iron core axis 421 is parallel to the solder side of described workpiece 600.The magnetic direction produced in the certain area of iron core bottom surface 422 in described magnetic field generator 400 is less with the misalignment angle of iron core axis 421, described misalignment angle range for 0～10 degree, what therefore, it can be similar to thinks that the magnetic direction that described magnetic field generator 400 produces in this region is parallel with iron core axis 421.Regulate the position of workpiece 600 so that the region to be welded on workpiece 600 solder side is positioned at the field region that direction produced by described magnetic field generator 400 is approximate parallel with iron core axis 421.It should be noted that, so that the region to be welded on the solder side of workpiece 600 is positioned at the field region that direction is approximate parallel with iron core axis 421, a hoistable platform 510 can be first placed on numerical control table, NC table 500, workpiece 600 is positioned on hoistable platform 510, to facilitate adjustment workpiece 600 in the position being perpendicular on numerical control table, NC table 500 direction.
Further, consider the convenience controlled, the laser soldering device based on pulsed magnetic field that the present embodiment provides also includes isochronous controller 700, as shown in Figure 1 and Figure 7, described isochronous controller 700 all couples with described laser instrument 110, described pulsed magnetic field power supply 300 and described numerical control table, NC table 500.The Synchronization Control based on light field in the laser soldering device of pulsed magnetic field and magnetic field can be realized by isochronous controller 700.After isochronous controller 700 receives external control signal, it is simultaneously sent for controlling that laser instrument 110 opens first triggers signal, second trigger signal and for controlling the 3rd triggering signal that numerical control table, NC table 500 is opened for what control that magnetic field generator 400 discharge by pulsed magnetic field power supply 300.Wherein, described second triggering signal is pulse signal.Laser instrument 110 receives described first triggering signal, pulsed magnetic field power supply 300 receives described second triggering signal, numerical control table, NC table 500 synchronizes to open after receiving described 3rd triggering signal.Such as, described isochronous controller 700 can adopt RT400 to control system.
Additionally; it should be noted that; the present embodiment provide based on the laser soldering device of pulsed magnetic field is additionally provided with protective gas nozzle, protective gas is entered protective gas nozzle by transmission pipeline, is arrived the solder side of workpiece 600 with certain pressure injection by protective gas nozzle.Such as, protective gas can be the noble gases such as helium, argon, nitrogen.Protective gas can suppress workpiece 600 to be aoxidized in welding process effectively, and the laser focusing module in protection laser delivery 130 pollutes the sputtering with liquid molten drop from metallic vapour, and disperses the plasma shielding that High Power Laser Welding produces.
In embodiment provided by the utility model, it should be understood that disclosed module, it is possible to realize by another way.Embodiments described above is merely schematic, such as, the division of described module, it is only a kind of logic function to divide, actual can have other dividing mode when realizing, again such as, multiple modules or assembly can in conjunction with or be desirably integrated into another system, or some features can ignore, or do not perform.Another point, shown or discussed coupling each other can be direct-coupling, it is also possible to be the INDIRECT COUPLING by some communication interfaces or module or communication connection, it is possible to be electrical, machinery or other form.
It should be noted that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with scope of the claims.
Claims (10)
1. the laser soldering device based on pulsed magnetic field, it is characterized in that, including: laser instrument, pulsed magnetic field power supply, for the laser delivery of laser beam focusing that described laser instrument is sent to workpiece and be used for producing pulsed magnetic field to control the magnetic field generator that in laser beam welding, produced plasma distribution and welding pool flow, described laser instrument couples with described laser delivery, and described pulsed magnetic field power supply couples with described magnetic field generator.
2. the laser soldering device based on pulsed magnetic field according to claim 1, it is characterized in that, described pulsed magnetic field power supply includes control circuit, voltage regulator circuit, charge circuit and discharge loop, the input of described voltage regulator circuit couples with external power source, the outfan of described voltage regulator circuit couples with described charge circuit input, the outfan of described charge circuit couples with the input of described discharge loop, the outfan of described discharge loop couples with described magnetic field generator, described voltage regulator circuit, described charge circuit and described discharge loop all couple with described control circuit.
3. the laser soldering device based on pulsed magnetic field according to claim 2, it is characterized in that, described charge circuit includes the first electric capacity, second electric capacity and the first switch, described first switch includes the first link, first control end of the second link and conducting and disconnection for controlling described first link and described second link, described first controls end couples with described control circuit, the negative pole of described first electric capacity couples with described first link, the negative pole of described second electric capacity couples with described second link, the positive pole of described first electric capacity couples with the positive pole of described second electric capacity, described first link couples with the input of the outfan of described voltage regulator circuit and described discharge loop respectively.
4. the laser soldering device based on pulsed magnetic field according to any one of claim 1-3, it is characterized in that, described magnetic field generator includes insulation shell, iron core and the induction coil being set in outside described iron core, described iron core and described induction coil are respectively positioned in described insulation shell, are filled with the firming agent for preventing described induction coil from deforming in described insulation shell.
5. the laser soldering device based on pulsed magnetic field according to claim 4, it is characterised in that described induction coil is formed by copper pipe coiling, in described copper pipe, circulation has cooling water.
6. the laser soldering device based on pulsed magnetic field according to claim 5, it is characterised in that described induction coil includes 6 layer line circles, and the described coil of each layer includes 18 circle subcoils.
7. the laser soldering device based on pulsed magnetic field according to claim 6, it is characterised in that be provided with insulation film between adjacent two-layer coil and between two adjacent circle subcoils.
8. the laser soldering device based on pulsed magnetic field according to claim 7, it is characterized in that, also include numerical control table, NC table, described magnetic field generator is arranged on described numerical control table, NC table, described workpiece is placed in the predeterminable area on described insulation shell surface, wherein, the axis of described iron core is perpendicular to the solder side of described workpiece.
9. the laser soldering device based on pulsed magnetic field according to claim 7, it is characterized in that, also include numerical control table, NC table, described magnetic field generator and described workpiece and may be contained within described numerical control table, NC table, wherein, the axis of described iron core is parallel to the solder side of described workpiece.
10. the laser soldering device based on pulsed magnetic field according to claim 8, it is characterised in that also including isochronous controller, described isochronous controller all couples with described laser instrument, described pulsed magnetic field power supply and described numerical control table, NC table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152190.3U CN205380361U (en) | 2016-02-29 | 2016-02-29 | Laser welding device based on pulsed magnetic field |
Applications Claiming Priority (1)
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| CN105537768A (en) * | 2016-02-29 | 2016-05-04 | 温州大学 | Magnetic field-assisted laser welding device and method |
| CN106670664A (en) * | 2017-02-08 | 2017-05-17 | 华中科技大学 | Magnetic field intensity adjusting device for assisting laser and arc hybrid welding |
| CN106956077A (en) * | 2017-03-10 | 2017-07-18 | 南京航空航天大学 | A kind of cut deal aluminium alloy magnetic control laser welding process |
| CN107774625A (en) * | 2017-11-21 | 2018-03-09 | 山东省科学院激光研究所 | Brake disc cleaning device and method |
| CN111618438A (en) * | 2020-05-27 | 2020-09-04 | 南京航空航天大学 | Magnetic field assisted double-laser-TIG coupling bilateral synchronous welding device and method |
| CN112743230A (en) * | 2020-12-30 | 2021-05-04 | 长沙理工大学 | Method and system for laser welding of magnesium alloy |
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| CN105537768A (en) * | 2016-02-29 | 2016-05-04 | 温州大学 | Magnetic field-assisted laser welding device and method |
| CN106670664A (en) * | 2017-02-08 | 2017-05-17 | 华中科技大学 | Magnetic field intensity adjusting device for assisting laser and arc hybrid welding |
| CN106670664B (en) * | 2017-02-08 | 2018-10-30 | 华中科技大学 | A kind of magnetic field intensity regulating device of the electric arc combined welding of auxiliary laser |
| CN106956077A (en) * | 2017-03-10 | 2017-07-18 | 南京航空航天大学 | A kind of cut deal aluminium alloy magnetic control laser welding process |
| CN107774625A (en) * | 2017-11-21 | 2018-03-09 | 山东省科学院激光研究所 | Brake disc cleaning device and method |
| CN111618438A (en) * | 2020-05-27 | 2020-09-04 | 南京航空航天大学 | Magnetic field assisted double-laser-TIG coupling bilateral synchronous welding device and method |
| CN112743230A (en) * | 2020-12-30 | 2021-05-04 | 长沙理工大学 | Method and system for laser welding of magnesium alloy |
| CN112743230B (en) * | 2020-12-30 | 2022-05-31 | 长沙理工大学 | Method and system for laser welding of magnesium alloy |
| CN112894177A (en) * | 2021-03-15 | 2021-06-04 | 沈阳万超激光科技有限公司 | Device for improving quality of water-conducting laser processing hole by external magnetic field |
| WO2022219382A1 (en) * | 2021-04-13 | 2022-10-20 | Saudi Arabian Oil Company | System and method for laser processing with a protective plasma shield |
| US11938564B2 (en) | 2021-04-13 | 2024-03-26 | Saudi Arabian Oil Company | Systems and methods for generating plasma shields |
| CN113369738A (en) * | 2021-07-02 | 2021-09-10 | 重庆大学 | Modularized high-power pulse discharge welding device |
| CN113369738B (en) * | 2021-07-02 | 2023-03-24 | 重庆大学 | Modularized high-power pulse discharge welding device |
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