CN104942436A - Variable-focus laser welding equipment, blowing protecting device thereof and blowing protecting method - Google Patents
Variable-focus laser welding equipment, blowing protecting device thereof and blowing protecting method Download PDFInfo
- Publication number
- CN104942436A CN104942436A CN201410127441.8A CN201410127441A CN104942436A CN 104942436 A CN104942436 A CN 104942436A CN 201410127441 A CN201410127441 A CN 201410127441A CN 104942436 A CN104942436 A CN 104942436A
- Authority
- CN
- China
- Prior art keywords
- laser welding
- varifocal
- exhaust pipe
- varifocal laser
- welding system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
Abstract
The invention is applicable to the technical field of laser welding, and discloses a variable-focus laser welding blowing protecting method, a variable-focus laser welding blowing protecting device and variable-focus laser welding equipment with the blowing protecting device. The variable-focus laser welding blowing protecting device is arranged on a side with a focusing lens of a variable-focus laser welding head, is used for restraining smoke and plasmas from flying towards the side with the focusing lens in a variable-focus laser welding process and comprises a connecting support, an exhaust pipe and a gas supplying component for delivering gas to the inside of the exhaust pipe; the exhaust pipe is provided with a hollow inner cavity, a gas inlet and a plurality of exhaust holes; and the exhaust holes are formed in a wall surface, which backs on to the variable-focus laser welding head, of the exhaust pipe. The technical problem that smoke and plasmas which are generated when a variable-focus laser welding technology is applied to work pieces with complex surface structures such as sheet metal parts of a body in white of an automobile affect laser welding quality and welding efficiency greatly is solved.
Description
Technical field
The invention belongs to laser welding technology field, particularly relate to a kind of air blowing protector of varifocal laser weld, air blowing guard method and there is the varifocal laser welding apparatus of this air blowing protector.
Background technology
Laser welding technology, owing to having the advantage of high efficiency, superior performance, is applied more and more widely so obtain.The volume of smoke that can produce during laser weld and plasma, and incident laser had to the effect of absorption, refraction and scattering due to flue dust and plasma, therefore, flue dust and plasma weaken laser projection to the energy on surface of the work, even can the hot spot of expansion of laser light bundle, thus the welding quality of workpiece, welding efficiency can be made all to decline to some extent.
In order to avoid flue dust and plasma weaken laser projection to the energy on surface of the work; person skilled to propose in laser beam welding flue dust and the plasma that mode that butt welded seam simultaneously blows protective gas carries out dispelling commissure; the program is generally by realizing in the other mode installing concentrated gas blow pipe additional of laser spot, and protective gas is generally set to inert gas.This scheme of blowing protective gas, fixes in laser spot and is easy in short focus solder technology realize, and can obtain good welding effect; And be difficult to be applied in laser long-range, varifocal (laser focal, variable focal point) welding (welding as laser galvanometer remote welding head and variable focal length plumb joint) technology; its main cause is: in long-range at laser, varifocal welding; focus or focal length are not fixing; focus is variable in axis or three dimensions, therefore protection gas blowout loophole position is difficult to the change of following focal position of laser.
Therefore; in existing laser focal length solder technology far away, laser galvanometer remote welding head and variable focal length plumb joint are not generally arranged the protection gas system of butt welded seam, like this; do not have scavenger system completely in welding process, its Laser Welding Quality and welding efficiency are all very low.And in order to reduce laser focal length far away, in varifocal solder technology, flue dust and plasma are to the weakening degree of laser projection energy, person skilled proposes the technical scheme of installing special scavenger system in the clamping tooling structure of workpiece, this technical scheme of installing special scavenger system in clamping tooling structure is easy to realize in workpiece relatively simple for structure welding, and good welding effect can be obtained, but, the flexibility of this special scavenger system installed additional in the clamping tooling structure of workpiece is very low, and be unfavorable for installing on the tool structure of the panel beating class workpiece with complex surface structures.
Along with laser focal length far away, varifocal solder technology is applied more and more widely in the welding field of the large-sized sheet materials such as automobile body-in-white, laser focal length far away, in varifocal welding process, flue dust and the impact of plasma on Laser Welding Quality and efficiency highlight day by day, especially after automobile body-in-white adopts galvanized steel plain sheet to be welded in a large number, it is even more serious that the flue dust produced in galvanized steel plain sheet welding process and plasma fly upward phenomenon, like this, make laser focal length far away, the welding procedure of scavenger system is not had easily to occur weld defect in varifocal solder technology completely, and then the defective products rate of welding work pieces is promoted greatly.Simultaneously, because the shape of automobile body-in-white panel beating is strange, therefore, the tool structure often overlapping automobile body-in-white panel beating installs additional a set of special scavenger system, the structure of scavenger system can be made very complicated, and on the tool structure often overlapping automobile body-in-white panel beating, install a set of special scavenger system additional also there is the defect that cost is high, operability is low, therefore, the clamping tooling structure of the panel beating class workpiece such as automobile body-in-white with complex surface structures installs scavenger system additional, is difficult in a particular application realize.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art; provide a kind of air blowing protector of varifocal laser weld, air blowing guard method and have the varifocal laser welding apparatus of this air blowing protector, it is intended to solve the flue dust that produces when the varifocal solder technology of existing laser is applied to the panel beating class workpiece such as the automobile body-in-white with complex surface structures and plasma affects large technical problem to Laser Welding Quality, welding efficiency.
Technical scheme of the present invention is: a kind of air blowing protector of varifocal laser weld, the side, amasthenic lens place being located at varifocal laser welding system is flown upward to side, varifocal laser welding system place for flue dust and plasma in suppression remote laser welding process, it comprises the connection bracket for being connected with varifocal laser welding system, be installed on exhaust pipe in described connection bracket and for carrying the gas supply assembly of gas in described exhaust pipe, described exhaust pipe has hollow cavity, air inlet and some steam vents, described air inlet is connected with described gas supply assembly, described some steam vents be located at described exhaust pipe back on the wall of described amasthenic lens.
Preferably, described air inlet is provided with two, and air inlet described in two is connected in parallel in one end of described gas supply assembly.
As the first specific embodiments of exhaust pipe, described exhaust pipe comprises the head and the tail closed ring-type body that is bonded with each other of two ends and one end is arranged on described closed ring-type body, the other end is the air inlet pipe of openend, the described openend of described air inlet pipe is described air inlet, described some steam vents be distributed in described closed ring-type body back on the wall of described amasthenic lens.
As the second specific embodiments of exhaust pipe, described exhaust pipe comprises open type ring-type body, described open type ring-type body is bent around forming by a body, and the head and the tail two ends of this body are bent to two straight tube-like be arranged side by side, the head and the tail two ends of described body all have court away from the outward extending openend of the heart among described open type ring-type body, described openend is described air inlet, described some steam vents be distributed in described open type ring-type body back on the wall of described amasthenic lens.
As the 3rd specific embodiments of exhaust pipe, described exhaust pipe comprises two intervals and the straight tube be arranged in parallel, described straight tube has openend and blind end, and described openend is described air inlet, described some steam vents be distributed in described straight tube back on the wall of described amasthenic lens.
As the first specific embodiments of connection bracket, described connection bracket comprises rack body and is fixed on the connecting plate on described exhaust pipe, described rack body offers and wears to connect the first connecting hole of described connecting plate and the second connecting hole wearing to be connected described varifocal laser welding system for the second securing member for the first securing member, described connecting plate is provided with the 3rd connecting hole worn for described first securing member.
As the second specific embodiments of connection bracket, described connection bracket comprises rack body, the connecting plate be fixed on described exhaust pipe is connected described rack body with one end, the other end connects the contiguous block of the mounting rod of described varifocal laser welding system, described rack body offers and wears to connect the first connecting hole of described connecting plate and the 4th connecting hole wearing to be connected described contiguous block for the 3rd securing member for the first securing member, described connecting plate is provided with the 3rd connecting hole worn for described first securing member, described contiguous block is provided with the 6th connecting hole worn for described 3rd securing member.
Particularly, described gas supply assembly comprises source of the gas, conveying gas circuit, flow control valve, and one end of described conveying gas circuit is connected with described source of the gas, and the other end is connected with described air inlet, and described flow control valve is located in described conveying gas circuit.
The air blowing protector of varifocal laser weld provided by the invention, is undertaken connecting varifocal laser welding system by connection bracket, can realize the installation of exhaust pipe in varifocal laser welding system and fix, by arranging the air inlet be interconnected on exhaust pipe, hollow cavity and steam vent, the gas be transported in exhaust pipe from gas supply assembly can be made outwards to spray in steam vent, and arrange back to amasthenic lens due to steam vent, therefore, the air-flow ejected in steam vent can suppress the flue dust that produces during varifocal laser weld and plasma to fly upward towards side, amasthenic lens place, and flue dust and plasma can be forced to scatter to surrounding, effectively reduce flue dust and plasma to the weakening degree of laser projection energy, and then improve quality and the efficiency of varifocal laser weld.The air blowing protector swashing varifocal smooth galvanometer welding provided by the invention; because it is fixedly installed in varifocal laser welding system for the exhaust pipe of blowing by connection bracket; therefore; this exhaust pipe can move along with the movement of varifocal laser; use flexibility is high; like this, it in use need not consider that whether the structure of workpiece complicated, thus make its install and use in process have operability high, be easy to realize, feature that installation cost is low.
Present invention also offers a kind of varifocal laser welding apparatus, it comprises varifocal laser welding system, described varifocal laser welding system comprises varifocal laser welding system body and is installed on the horizontal blowning installation on described varifocal laser welding system body, described varifocal laser welding system body has the amasthenic lens for laser injection, described varifocal laser welding system is also provided with the air blowing protector of above-mentioned varifocal laser weld, the air blowing protector of described horizontal blowning installation and described varifocal laser weld is all located at the side, described amasthenic lens place of described varifocal laser welding system body.
Varifocal laser welding apparatus provided by the invention, owing to install the air blowing protector of above-mentioned varifocal laser weld on varifocal laser plumb joint, therefore, long-range, the zoom welding that can be varifocal laser welding system effectively provide air blowing protection system, thus effectively inhibit the flue dust that produces during laser weld and plasma to fly upward towards side, amasthenic lens place, reduce flue dust and plasma to the weakening degree of laser projection energy; Compared to long-range, the zoom welding of the varifocal laser welding system of prior art, under same laser power, long-range, the zoom welding of varifocal laser welding system of the present invention can obtain larger weld penetration, effectively improve laser is long-range, zoom welds quality and efficiency.And be fixedly installed in varifocal laser welding system due to it for the exhaust pipe of blowing; therefore; this exhaust pipe can move along with the movement of varifocal laser welding system; use flexibility is high; like this; when varifocal laser welding system welding equipment provided by the invention is applied to workpiece (as the automobile body-in-white sheet metal component etc.) with complex surface structures; air blowing protector install and use the structure complexity can considering workpiece; operability is high, be easy to realize, installation cost is low, thus is beneficial to the scope of application expanding product.
Present invention also offers a kind of air blowing guard method of varifocal laser weld, it adopts an air blowing protector eject vertical air-flow towards beam direction and form a vertical air-flow territory.
The air blowing guard method of varifocal laser weld provided by the invention; vertical air-flow territory can suppress the flue dust that produces during varifocal laser weld and plasma to fly upward towards side, amasthenic lens place; and flue dust and plasma can be forced to scatter to surrounding; effectively reduce flue dust and plasma to the weakening degree of laser projection energy, and then improve quality and the efficiency of varifocal laser weld.
Accompanying drawing explanation
Fig. 1 is the structural representation of the varifocal laser welding apparatus that the embodiment of the present invention one provides;
Fig. 2 is the assembling schematic diagram of the exhaust pipe that provides of the embodiment of the present invention one and connection bracket;
Fig. 3 is the structural representation of the exhaust pipe that the embodiment of the present invention one provides;
Fig. 4 is the air-channel system figure that the exhaust pipe that provides of the embodiment of the present invention one and gas supply assembly form;
Fig. 5 is the operating diagram of the varifocal laser welding apparatus that the embodiment of the present invention one provides;
Fig. 6 is the operating diagram of varifocal laser welding apparatus after the air blowing protector removing varifocal laser weld in Fig. 5;
Fig. 7 is the structural representation of the exhaust pipe that the embodiment of the present invention two provides;
Fig. 8 is the structural representation of the air blowing protector of the varifocal laser weld that the embodiment of the present invention three provides;
Fig. 9 is the structural representation of the air blowing protector of the varifocal laser weld that the embodiment of the present invention four provides;
Figure 10 is the close-up schematic view at A place in Fig. 9.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Fig. 1 ~ 5, the air blowing protector 1a of the varifocal laser weld that the embodiment of the present invention one provides, the side, amasthenic lens 211a place being located at varifocal laser galvanometer plumb joint 2a is flown upward to side, varifocal laser welding system 2a place for flue dust and plasma 3a in the varifocal laser beam welding of suppression, varifocal laser weld specifically refers to the welding focal length of laser in laser beam welding, variable focal point, like this, the laser weld scope of varifocal laser weld is larger, varifocal laser welding system 2a specifically can be laser galvanometer plumb joint or varifocal laser welding system, this air blowing protector 1a comprises the connection bracket 11a for being connected with varifocal laser welding system 2a, be installed on exhaust pipe 12a on connection bracket 11a and for carrying the gas supply assembly 13a of gas in exhaust pipe 12a, exhaust pipe 12a has hollow cavity (not shown), air inlet 120a and some steam vent 1211a, air inlet 120a is connected with gas supply assembly 13a, some steam vent 1211a be located at exhaust pipe 12a back on the wall of amasthenic lens 211a, each steam vent 1211a along and laser beam 210a be that the edges of regions that arranges of spacing distributes and arranges.The setting of connection bracket 11a, be mainly used in realizing the installation of exhaust pipe 12a on varifocal laser welding system 2a to fix, like this, exhaust pipe 12a can be moved along with the movement of varifocal laser welding system 2a, improve the use flexibility of exhaust pipe 12a, thus whether the structure of workpiece complicated to make the setting of exhaust pipe 12a to consider, its install and use operability in process high, be easy to realize, installation cost is low, and effectively expands the scope of application of product.The setting of exhaust pipe 12a upper air-vent 1211a, be mainly used in the gas be transported in exhaust pipe 12a from gas supply assembly 13a is outwards sprayed in steam vent 1211a, and arrange back to amasthenic lens 211a due to steam vent 1211a, therefore, the air-flow ejected in steam vent 1211a can suppress the flue dust that produces during laser weld and plasma 3a to fly upward towards side, amasthenic lens 211a place, and flue dust and plasma 3a can be forced to scatter to surrounding, effectively reduce flue dust and plasma 3a to the weakening degree of laser projection energy, and then improve quality and the efficiency of laser remote welding.
Particularly, gas supply assembly 13a comprises source of the gas 131a, conveying gas circuit 132a and flow control valve 132a, and one end of conveying gas circuit 132a is connected with source of the gas 131a, and the other end is connected with air inlet 120a, and flow control valve 132a is located on conveying gas circuit 132a.The setting of conveying gas circuit 132a, effectively can connect the air inlet 120a of source of the gas 131a and exhaust pipe 12a, for realizing the conveying of gas from source of the gas 131a side direction exhaust pipe 12a side.The setting of flow control valve 132a on conveying gas circuit 132a, can be used for controlling conveying the logical of gas circuit 132a on the one hand and close, namely flow control valve 132a can be used as switch valve use; The uninterrupted of gas on the adjustable conveying gas circuit 132a of another aspect, ensure that the gas flow of conveying in conveying gas circuit 132a meets the exhaust demand of exhaust pipe 12a.
Further, as shown in Figure 4, conveying gas circuit 132a is also provided with one end near source of the gas 131a that switching control pilot 134a and traffic monitoring instrument 135a, switching control pilot 134a are located at conveying gas circuit 132a, traffic monitoring instrument 135a is located between switching control pilot 134a and flow control valve 132a.Switching control pilot 134a is mainly used in controlling source of the gas 131a and carry the pipeline between gas circuit 132a to lead to close, and the fast control components as gas path on-off uses.Preferably, switching control pilot 134a is solenoid electric valve, and is electrically connected with the electric-control system (not shown) of laser welding apparatus, like this, is convenient to the control convenience, the control accuracy that improve switching control pilot 134a; More preferably, switching control pilot 134a is two-way electromagnetic valve.Traffic monitoring instrument 135a is electrically connected with electric-control system, and it is mainly used in the gas flow size of monitoring flow through it, to ensure the reliability carrying gas flow on gas circuit 132a.The flow working range of traffic monitoring instrument 135a is adjustable, and traffic monitoring instrument 135a can show the gas flow size flowing through it.In embody rule, after traffic monitoring instrument 135a sets flow working range, when flowing through the gas flow of traffic monitoring instrument 135a not when the flow working range of its setting, then over range flow information can be fed back to electric-control system by traffic monitoring instrument 135a, and sounded the alarm by electric-control system, to remind staff to investigate piping flow fault in time, so can effective guarantee air-channel system run reliability and security reliability.
Further, as shown in Fig. 1 ~ 2, in order to improve exhaust pipe 12a and joint efficiency and the removal efficiency of carrying gas circuit 132a, be also provided with snap joint 14a in air inlet 120a place.
Particularly, owing to being mainly used in forming the air-flow that flue dust and plasma 3a can be suppressed to fly upward to varifocal laser welding system 2a side from the gas of discharging in exhaust pipe 12a, therefore, preferably be set to cheap compressed air by source of the gas 131a to the gas that exhaust pipe 12a carries, source of the gas 131a specifically can be the compressibility storing compressed-air actuated air accumulator or have compressor.Compressed air is formed by air compressing, and its wide material sources, cost be low, be easy to obtain, therefore, gas is set to compressed air, can be beneficial to and reduces air blowing protector 1a use cost in a particular application.Of course, in embody rule, the gas carried to exhaust pipe 12a by source of the gas 131a also can be set to other Compressed Gas, and as oxygen, inert gas etc., but its cost is higher.
Preferably, as shown in Figures 1 to 3, air inlet 120a is provided with two, and two air inlet 120a are connected in parallel in the output of the conveying gas circuit 132a of gas supply assembly 132a.In embody rule, conveying gas circuit 132a carries out connection two air inlet 120a by a three-way connection (not shown) and two points of tube connector (not shown), three joints of three-way connection connect the conveying output of gas circuit 132a, one end of two points of tube connectors respectively, the other end of two points of tube connectors connects two air inlet 120a respectively, like this, being connected in parallel of conveying gas circuit 132a and two air inlet 120a is namely achieved.The air-flow being delivered to conveying gas circuit 132a output from source of the gas 131a is shunted at the output of conveying gas circuit 132a, and two strands of air-flows are carried respectively to two air inlet 120a.The present embodiment, air inlet 120a is provided with two, gas can be made to enter in exhaust pipe 12a from the both sides of exhaust pipe 12a, thus the gas be beneficial in the hollow cavity ensureing exhaust pipe 12a is relatively more even, and then ensure that the air-flow of discharging in each steam vent 1211a is more even.Of course, air inlet 120a also only can be provided with one or be set to more than three or three, and is unfavorable for the uniformity that ensures to enter gas in exhaust pipe 12a hollow cavity when air inlet 120a is only provided with one; And air inlet 120a is set to more than three or three, it is unfavorable for each air inlet 120a and the connection of carrying gas circuit 132a, thus can cause the raising of link cost.
Particularly, as shown in Figures 1 to 3, exhaust pipe 12a comprises the head and the tail closed ring-type body 121a that is bonded with each other of two ends and one end is arranged on closed ring-type body 121a, the other end is the air inlet pipe 122a of openend, the openend of air inlet pipe 122a is air inlet 120a, air inlet pipe 122a is a straight pipe fitting, and one end of air inlet pipe 122a is fixed on closed ring-type body 121a by welding manner, the openend of air inlet pipe 122a stretches out towards the direction away from the center of closed ring-type body 121a.Some steam vent 1211a be distributed in closed ring-type body 121a back on the wall of amasthenic lens 211a.Exhaust pipe 12a is provided between amasthenic lens 211a and workpiece, like this, amasthenic lens 211a will through exhaust pipe 12a to the laser beam 210a that workpiece irradiates, and closed ring-type body 121a encloses the sky circle part of formation mainly in order to dodge laser beam 210a in the present embodiment, thus can prevent the irradiation of exhaust pipe 12a to laser beam 210a from causing interference.The annular of closed ring-type body 121a is arranged, exhaust pipe 12a also can be made to form a very large gas field (being equivalent to an annular flow post) towards the vertical air-flow 10a that laser beam 210a welding direction ejects, namely vertical air-flow 10a sprays along the circumference annular regional extent being surrounded on laser beam 210a, vertical air-flow 10a spray regime is wide, thus can ensure varifocal laser welding system 2a not movement when, varifocal laser welding system 2a changes the focus of laser, during focal length welding, the air-flow that exhaust pipe 12a sprays all can form air blowing protective effect to laser beam 210a, thus the air blowing protector 1a of the varifocal laser weld that the embodiment of the present invention one can be made to provide to be particularly useful for laser long-range, in zoom welding.The annular of closed ring-type body 121a can be the rule annulars such as annular, oval ring, rectangle; Also can be irregular annular, as four corners being the round rectangle that round-corner transition is arranged.
Particularly, steam vent 1211a can rounded or oval or rectangle or other polygons or other are irregularly shaped, as shown in Figures 1 to 3, as a preferred embodiment of the present invention, steam vent 1211a is set to circle, like this, steam vent 1211a can be made comparatively to be easy to processing, thus to be beneficial to the process simplifying steam vent 1211a.
Particularly, as shown in Figures 1 to 3, connection bracket 11a comprises rack body 111a and is fixed on the connecting plate 112a on exhaust pipe 12a, rack body 111a offers and wears to connect the first connecting hole (not shown) of connecting plate 112a and the second connecting hole (not shown) wearing to be connected varifocal laser welding system 2a for the second securing member (not shown) for the first securing member (not shown), connecting plate 112a is provided with the 3rd connecting hole 1121a worn for the first securing member, the horizontal blowning installation 22a of varifocal laser welding system 2a is provided with the 5th connecting hole (not shown) worn for the second securing member.First securing member and the second securing member are all preferably set to screw, and like this, the second connecting hole and the equal correspondence of the 3rd connecting hole 1121a are preferably set to the not female unthreaded hole of tool, and the first connecting hole and the equal correspondence of the 5th connecting hole are preferably set to the female screwed hole of tool.Preferably, 3rd connecting hole 1121a is set to waist type unthreaded hole, waist type unthreaded hole specifically refers to the unthreaded hole that mid portion is rectangular shape, two ends are semicircle arcuation, like this, the wear position of screw in waist type unthreaded hole for connection bracket 11a body and connecting plate 112a is adjustable, thus can prevent because the situation that mismachining tolerance causes connecting plate 112a to be connected difficulty with rack body 111a occurs.
More specifically, connecting plate 112a is connected with exhaust pipe 12a by welding manner, because the wall ratio of exhaust pipe 12a is thinner, therefore, adopt welding manner to carry out connection exhaust pipe 12a and connecting plate 112a, be beneficial to the fastening reliability ensureing that exhaust pipe 12a is connected with connecting plate 112a.
Preferably, as shown in Figures 1 to 3, connecting plate 112a is provided with two, rack body 111a is set to U-shaped pole, they two side lever portion 1112a comprising intermediate shank portion 1111a and be located at intermediate shank portion 1111a two ends respectively, one end away from intermediate shank portion 1111a of two side lever portion 1112a connects two connecting plate 112a respectively by screw, and one end near intermediate shank portion 1111a of two side lever portion 1112a is connected with the horizontal blowning installation 22a of varifocal laser welding system 2a respectively by screw.Rack body 111a is set to U-shaped pole, the exhaust pipe 12a being beneficial to rack body 111a larger with span is connected, add the tie point quantity of rack body 111a and exhaust pipe 12a, thus be beneficial to the fastening reliability ensureing that exhaust pipe 12a is connected with connection bracket 11a; And intermediate shank portion 1111a and two side lever portion 1112a encloses the intermediate recessed portions of formation, the material usage of rack body 111a can be reduced, meanwhile, intermediate recessed portions also can pass for laser beam 210a, prevents rack body 111a from irradiating laser and produces interference.
Further, as shown in Figure 2, in order to improve the Stability Analysis of Structures reliability of rack body 111a, two side lever portion 1112a also carry out connection intermediate shank portion 1111a respectively by reinforcement 1113a.
The exhaust pipe 12a of above-described embodiment one is formed by connecting by closed ring-type body 121a and air inlet pipe 122a; and according to the difference of exhaust pipe structure; following examples two and embodiment three specifically provide exhaust pipe two other embodiment (mainly introduce embodiment two below, the difference of scheme that embodiment three provides and the scheme that embodiment one provides; other structures that in the air blowing protector of the varifocal laser weld that embodiment two, embodiment three provide, setting principle is identical with embodiment one setting principle, no longer describe in detail below):
Particularly; as shown in Figure 7; in the air blowing protector of the varifocal laser weld that the embodiment of the present invention two provides; exhaust pipe comprises open type ring-type body 121b; open type ring-type body 121b is bent around forming by a body; and the head and the tail two ends of this body are bent to two straight tube-like be arranged side by side; the head and the tail two ends of body all have towards the outward extending openend, center away from open type ring-type body 121b; openend is air inlet 120b, some steam vent 1211b be distributed in open type ring-type body 121b back on the wall of amasthenic lens.Open type ring-type body 121b encloses the sky circle part of formation mainly in order to dodge laser beam, thus can prevent the irradiation of exhaust pipe to laser beam from causing interference.The annular of open type ring-type body 121b is arranged, also exhaust pipe can be made to form a very large gas field (being equivalent to an annular flow post) towards the air-flow that LASER BEAM WELDING direction is ejected, namely vertical air-flow sprays along the circumference annular regional extent being surrounded on laser beam, vertical jet-impingement scope is wide, thus can ensure varifocal laser welding system not movement when, varifocal laser welding system changes the focus of laser, during focal length welding, the air-flow of exhaust pipe ejection all can form air blowing protective effect to laser beam, thus the air blowing protector of the varifocal laser weld that the embodiment of the present invention two can be made to provide to be particularly useful for laser long-range, in zoom welding.The annular of open type ring-type body 121b can be the rule annulars such as annular, oval ring, rectangle; Also can be irregular annular, as four corners being the round rectangle that round-corner transition is arranged.Compared with above-described embodiment one, that form exhaust pipe in the present embodiment is open type ring-type body 121b, so-called open type ring-type body 121b, refer to that the head and the tail two ends of the body being bent to form open type ring-type body 121b do not have joint and are integrated, just mutually be arranged side by side, and the head and the tail two ends of body are as the air inlet 120b be connected with conveying gas circuit of exhaust pipe, and do not need additionally to arrange air inlet pipe.
Particularly; as shown in Figure 8; in the air blowing protector of the varifocal laser weld that the embodiment of the present invention three provides; exhaust pipe comprises two intervals and the straight tube 121c be arranged in parallel; straight tube 121c has openend and blind end; openend is air inlet 120c, some steam vent 1211c be distributed in straight tube 121c back on the wall of amasthenic lens.The interval of two straight tube 121c is arranged, and mainly in order to form the space in order to dodge laser beam 210c, thus can prevent the irradiation of exhaust pipe to laser beam 210c from causing interference.The interval of two straight tube 121c is arranged, also exhaust pipe can be made to form a very large gas field towards the air-flow that LASER BEAM WELDING direction is ejected, namely vertical air-flow 10a sprays along the both sides large regions scope of laser beam 210a, vertical air-flow 10a spray regime is wide, thus can ensure varifocal laser welding system not movement when, varifocal laser welding system changes the focus of laser, during focal length welding, the air-flow of exhaust pipe ejection all can form air blowing protective effect to laser beam, thus the air blowing protector of the varifocal laser weld that the embodiment of the present invention two can be made to provide to be particularly useful for laser long-range, in zoom welding.Compared with above-described embodiment one, embodiment two, that form exhaust pipe in the present embodiment is the straight tube 121c of two spaced and parallel settings, and its exhaust pipe does not need bending to arrange in process, simplifies the process of exhaust pipe.
Above-described embodiment one, the connection bracket of embodiment two and embodiment three is all be made up of connecting plate and rack body, and be all directly be connected with the horizontal blowning installation of varifocal laser welding system by rack body, and according to the difference of connection mounting structure, the another one embodiment that following examples four specifically provide connection bracket (mainly introduces scheme and embodiment one that embodiment four provides below, the difference of the scheme that embodiment two and embodiment three provide, setting principle and embodiment one in the air blowing protector of the varifocal laser weld that embodiment four provides, other structures that embodiment two is identical with embodiment three setting principle, below no longer describe in detail):
Particularly, as shown in Fig. 9 ~ 10, in the air blowing protector of the varifocal laser weld that the embodiment of the present invention four provides, connection bracket comprises rack body 111d, be fixed on the connecting plate 112d on exhaust pipe 12d and one end connection bracket body 111d, the other end connects the contiguous block 113d of the mounting rod 212d of varifocal laser welding system, rack body 111d offers and wears to connect the first connecting hole (not shown) of connecting plate 112d and the 4th connecting hole (not shown) wearing to be connected contiguous block 113d for the 3rd securing member (not shown) for the first securing member (not shown).Connecting plate 112d is provided with the 3rd connecting hole (not shown) worn for the first securing member, and contiguous block 113d is provided with the 6th connecting hole (not shown) worn for the 3rd securing member.First securing member and the 3rd securing member are all preferably set to screw, and like this, the 3rd connecting hole and the equal correspondence of the 4th connecting hole are preferably set to the not female unthreaded hole of tool, and the first connecting hole and the equal correspondence of the 6th connecting hole are preferably set to the female screwed hole of tool.Preferably, 3rd connecting hole is set to waist type unthreaded hole, waist type unthreaded hole specifically refers to the unthreaded hole that mid portion is rectangular shape, two ends are semicircle arcuation, like this, the wear position of screw in waist type unthreaded hole for connection bracket body 111d and connecting plate 112d is adjustable, like this, can prevent because the situation that mismachining tolerance causes connecting plate 112d to be connected difficulty with rack body 111d occurs.Compare with embodiment three with above-described embodiment one, embodiment two, in the present embodiment, to have formed in the parts of connection bracket contiguous block 113d many, and contiguous block 113d is used for the mounting rod 212d of connection bracket body 111d and varifocal laser welding system.The present embodiment is mainly for the different structure optimal design-aside of different model varifocal laser welding system; namely the connection bracket of the present embodiment is mainly arranged for the varifocal laser welding system with mounting rod 212d, thus can expand the scope of application of the air blowing protector of varifocal laser welding system remote welding.Like this, in embody rule, can change the outfit according to different varifocal laser welding system different connection brackets, easy to use.
More specifically, as shown in Fig. 9 ~ 10, contiguous block 113d offers the axis hole (not shown) worn for mounting rod 212d, contiguous block 113d offers towards the direction of side, described axis hole place the open slot 1131d be communicated with axis hole away from the end face of rack body 111d, open slot 1131d is surrounded by upper fixture block portion 1132d and lower fixture block portion 1133d, upper fixture block portion 1132d is connected by screw with lower fixture block portion 1133d, upper fixture block portion 1132d and lower fixture block portion 1133d is equipped with the connecting hole (not shown) worn for screw.The setting of open slot 1131d, fixture block portion 1132d and lower fixture block portion 1133d can be made to have certain elasticity, like this, fixture block portion 1132d and lower fixture block portion 1133d can be made to have certain floating space, thus offer convenience to mounting rod 212d penetrating and extracting in axis hole, and then be beneficial to the dismounting efficiency improving contiguous block 113d and mounting rod 212d.Upper fixture block portion 1132d is connected by screw with lower fixture block portion 1133d, like this, effectively can limit the gap length between fixture block portion 1132d and lower fixture block portion 1133d, thus can ensure the fastening reliability that mounting rod 212d installs in axis hole.
Preferably, as shown in Fig. 9 ~ 10, connecting plate 112d is provided with two, contiguous block 113d is also provided with two, rack body 111d correspondence is preferably set to U-shaped pole, and connecting plate 112d is connected with exhaust pipe 12d preferably by welding manner, U-shaped pole comprises intermediate shank portion (not shown) and is located at the two side lever portion (not shown) at intermediate shank portion two ends respectively, the one end away from intermediate shank portion in two side lever portions connects two connecting plate 112d respectively by screw, the one end near intermediate shank portion in two side lever portions is connected with two contiguous block 113d respectively by screw, two side lever portions also carry out connection intermediate shank portion respectively by reinforcement (not shown).Herein, the setting principle of connecting plate 112d and rack body 111d and the embodiment one of above-mentioned connection bracket, embodiment two are identical with the setting principle of connecting plate 112d in embodiment three and rack body 111d, are not described in detail in this.
Further, as Fig. 1, shown in Fig. 5 and Fig. 6, the embodiment of the present invention one additionally provides a kind of varifocal laser welding apparatus, it comprises varifocal laser welding system 2a, varifocal laser welding system 2a comprises varifocal laser welding system body 21a, optical fiber 23a and the horizontal blowning installation 22a be installed on varifocal laser welding system body 21a, horizontal blowning installation 22a is installed on varifocal laser welding system body 21a by screw, varifocal laser welding system body 21a has the amasthenic lens 211a for laser injection, varifocal laser welding system 2a is also provided with the air blowing protector 1a of above-mentioned varifocal laser weld, the air blowing protector 1a of horizontal blowning installation 22a and varifocal laser weld is all located at the side, amasthenic lens 211a place of varifocal laser welding system body 21a, the connection bracket 11a of air blowing protector 1a is installed on horizontal blowning installation 22a especially by screw.Horizontal blowning installation 22a is mainly used in the direction blowout crossflow 220a along vertical beam of light 210a, and the gas of its blowout can be preferably cheap compressed air.In concrete welding process, amasthenic lens 211a can eject laser beam 210a towards workpiece, horizontal blowning installation 22a can along the direction blowout crossflow 220a of vertical beam of light 210a, this crossflow 220a is directly blown out by the mouth of pipe of tracheae, air-flow is larger, therefore, this crossflow 220a can blow off spattering to varifocal laser welding system body 21a the welding slag flown in welding process, thus can prevent high temperature welding slag from getting on varifocal laser welding system body 21a, serve the effect of the effectively varifocal laser welding system body 21a of protection; And the air blowing protector 1a of varifocal laser weld can blow out vertical air-flow 10a along the direction parallel with laser beam 210a; this vertical air-flow 10a can disperse flue dust and the plasma 3a of welding process generation along laser direction of illumination; effectively inhibit that laser is long-range, zoom welding time the flue dust that produces and plasma 3a fly upward towards side, amasthenic lens 211a place, reduce flue dust and plasma 3a to the weakening degree of laser projection energy.Compared to long-range, the zoom welding of prior art varifocal laser welding system 2a; the present embodiment owing to having installed above-mentioned air blowing protector 1a additional on varifocal laser welding system 2a; therefore; under same laser power; long-range, the zoom welding of the varifocal laser welding system 2a of the present embodiment can obtain larger weld penetration, effectively improve laser is long-range, zoom welds quality and efficiency.Because exhaust pipe 12a can form a very large gas field towards the air-flow that laser beam 210a welding direction ejects; thus can ensure varifocal laser welding system 2a not movement when; when varifocal laser welding system 2a changes focus, the focal length welding of laser; the air-flow that exhaust pipe 12a sprays all can form air blowing protective effect to laser beam 210a, thus the air blowing protector 1a of the varifocal laser weld that the embodiment of the present invention one can be made to provide is particularly useful for that laser is long-range, in zoom welding.And be fixedly installed in varifocal laser welding system 2a due to it for the exhaust pipe 12a blown, therefore, this exhaust pipe 12a can move along with the movement of varifocal laser welding system 2a, the air blowing protector 1a of varifocal laser weld uses flexibility high, like this, when varifocal laser welding apparatus provided by the invention be applied to welding there is the panel beating class workpiece such as the body of a motor car of complex surface structures time, air blowing protector 1a installs and uses the structure complexity can considering workpiece, operability is high, be easy to realize, installation cost is low, thus be beneficial to the scope of application expanding product, and ensure that quality and the welding efficiency of remote welding.
Further; the embodiment of the present invention one additionally provides a kind of air blowing guard method of varifocal laser weld; it adopts an air blowing protector eject the vertical air-flow of vertical air-flow 10a towards beam direction and form a vertical air-flow territory, and vertical air-flow territory is specially vertical air-flow 10a and sprays along in the certain area coverage of laser beam 210a circumference.The air blowing guard method of varifocal laser weld provided by the invention; the flue dust that produces during varifocal laser weld and plasma can be suppressed to fly upward towards side, amasthenic lens 211a place; and flue dust and plasma can be forced to scatter to surrounding; effectively reduce flue dust and plasma to the weakening degree of laser projection energy, and then improve quality and the efficiency of varifocal laser weld.The present embodiment, air blowing protector is preferably the air blowing protector 1a of above-mentioned varifocal laser weld.
Further, the air blowing guard method of the varifocal laser weld that the embodiment of the present invention one provides, also adopts above-mentioned horizontal blowning installation blowout perpendicular to the crossflow 220a of beam direction.The acting in conjunction of crossflow 220a and vertical air-flow 10a; the protected effect of the amasthenic lens 211a to varifocal laser welding system body 21a can be improved on the one hand; the flue dust of generation when laser is long-range, zoom welds and plasma 3a can be inhibit on the other hand to fly upward towards side, amasthenic lens 211a place; reduce flue dust and plasma 3a to the weakening degree of laser projection energy, improve quality and the efficiency of varifocal laser weld.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the air blowing protector of a varifocal laser weld, the side, amasthenic lens place being located at varifocal laser welding system is flown upward to side, varifocal laser welding system place for flue dust and plasma in the varifocal laser beam welding of suppression, it is characterized in that: comprise the connection bracket for being connected with varifocal laser welding system, be installed on exhaust pipe in described connection bracket and for carrying the gas supply assembly of gas in described exhaust pipe, described exhaust pipe has hollow cavity, air inlet and some steam vents, described air inlet is connected with described gas supply assembly, described some steam vents be located at described exhaust pipe back on the wall of described amasthenic lens.
2. the air blowing protector of varifocal laser weld as claimed in claim 1, it is characterized in that: described air inlet is provided with two, and air inlet described in two is connected in parallel in one end of described gas supply assembly.
3. the air blowing protector of varifocal laser weld as claimed in claim 2; it is characterized in that: described exhaust pipe comprises the head and the tail closed ring-type body that is bonded with each other of two ends and one end is arranged on described closed ring-type body, the other end is the air inlet pipe of openend; the described openend of described air inlet pipe is described air inlet, described some steam vents be distributed in described closed ring-type body back on the wall of described amasthenic lens.
4. the air blowing protector of varifocal laser weld as claimed in claim 2; it is characterized in that: described exhaust pipe comprises open type ring-type body; described open type ring-type body is bent around forming by a body; and the head and the tail two ends of this body are bent to two straight tube-like be arranged side by side; the head and the tail two ends of described body all have court away from the outward extending openend of the heart among described open type ring-type body; described openend is described air inlet, described some steam vents be distributed in described open type ring-type body back on the wall of described amasthenic lens.
5. the air blowing protector of varifocal laser weld as claimed in claim 2; it is characterized in that: described exhaust pipe comprises two intervals and the straight tube be arranged in parallel; described straight tube has openend and blind end; described openend is described air inlet, described some steam vents be distributed in described straight tube back on the wall of described amasthenic lens.
6. the air blowing protector of the varifocal laser weld as described in any one of claim 1 to 5; it is characterized in that: described connection bracket comprises rack body and is fixed on the connecting plate on described exhaust pipe; described rack body offers and wears to connect the first connecting hole of described connecting plate and the second connecting hole wearing to be connected described varifocal laser welding system for the second securing member for the first securing member, described connecting plate is provided with the 3rd connecting hole worn for described first securing member.
7. the air blowing protector of the varifocal laser weld as described in any one of claim 1 to 5, it is characterized in that: described connection bracket comprises rack body, the connecting plate be fixed on described exhaust pipe is connected described rack body with one end, the other end connects the contiguous block of the mounting rod of described varifocal laser welding system, described rack body offers and wears to connect the first connecting hole of described connecting plate and the 4th connecting hole wearing to be connected described contiguous block for the 3rd securing member for the first securing member, described connecting plate is provided with the 3rd connecting hole worn for described first securing member, described contiguous block is provided with the 6th connecting hole worn for described 3rd securing member.
8. the air blowing protector of the varifocal laser weld as described in any one of claim 1 to 5; it is characterized in that: described gas supply assembly comprises source of the gas, conveying gas circuit and flow control valve; one end of described conveying gas circuit is connected with described source of the gas; the other end is connected with described air inlet, and described flow control valve is located in described conveying gas circuit.
9. a varifocal laser welding apparatus, comprise varifocal laser welding system, described varifocal laser welding system comprises varifocal laser welding system body and is installed on the horizontal blowning installation on described varifocal laser welding system body, described varifocal laser welding system body has the amasthenic lens for laser injection, it is characterized in that: the air blowing protector described varifocal laser welding system being also provided with the varifocal laser weld described in any one of claim 1 to 8, the air blowing protector of described horizontal blowning installation and described varifocal laser weld is all located at the side, described amasthenic lens place of described varifocal laser welding system body.
10. an air blowing guard method for varifocal laser weld, is characterized in that: adopt an air blowing protector eject vertical air-flow towards beam direction and form a vertical air-flow territory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410127441.8A CN104942436B (en) | 2014-03-31 | 2014-03-31 | Varifocal laser welding apparatus and air blowing protector, air blowing guard method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410127441.8A CN104942436B (en) | 2014-03-31 | 2014-03-31 | Varifocal laser welding apparatus and air blowing protector, air blowing guard method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104942436A true CN104942436A (en) | 2015-09-30 |
| CN104942436B CN104942436B (en) | 2017-01-04 |
Family
ID=54157785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410127441.8A Active CN104942436B (en) | 2014-03-31 | 2014-03-31 | Varifocal laser welding apparatus and air blowing protector, air blowing guard method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104942436B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346145A (en) * | 2016-11-23 | 2017-01-25 | 佛山智达思佳机电科技有限公司 | Carbon dioxide laser drilling device capable of achieving quick drilling |
| CN106825919A (en) * | 2017-03-24 | 2017-06-13 | 燕山大学 | A kind of laser head lens protecting device |
| CN107127451A (en) * | 2017-05-12 | 2017-09-05 | 东莞市力星激光科技有限公司 | A kind of electrokinetic cell low energy consumption laser welding process |
| CN108248196A (en) * | 2016-12-29 | 2018-07-06 | 上海运安制版有限公司 | A kind of printing plate cylinder laser engraving scavenger system |
| CN109093236A (en) * | 2018-11-02 | 2018-12-28 | 上海气焊机厂有限公司 | A kind of method for plasma cutting and plasma cutting machine |
| CN109202281A (en) * | 2018-11-22 | 2019-01-15 | 京东方科技集团股份有限公司 | A kind of dust-extraction unit, laser cutting machine |
| CN109351973A (en) * | 2018-12-18 | 2019-02-19 | 苏州大学 | A kind of three-dimensional space any direction cladding forming method |
| CN110369866A (en) * | 2019-08-09 | 2019-10-25 | 湖南城市学院 | A kind of gas protecting device for laser welding |
| CN111482699A (en) * | 2020-04-22 | 2020-08-04 | 太原理工大学 | High-power laser welding plasma suppression method |
| CN111541145A (en) * | 2020-05-11 | 2020-08-14 | 江西亮弘光电科技有限公司 | Laser diode sealing cap machine table with cleaning function |
| CN112171054A (en) * | 2019-07-03 | 2021-01-05 | 通快激光与系统工程有限公司 | Laser welding auxiliary gas applying device, manufacturing method thereof and laser welding system |
| CN116252047A (en) * | 2023-05-15 | 2023-06-13 | 深圳市智博泰克科技有限公司 | Double-light-path composite laser welding galvanometer system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130695A (en) * | 1983-01-14 | 1984-07-27 | Inoue Japax Res Inc | Optical working device |
| CN101318260A (en) * | 2008-06-25 | 2008-12-10 | 深圳市大族激光科技股份有限公司 | Cover gas blowing device for laser welder head |
| CN201353685Y (en) * | 2008-12-30 | 2009-12-02 | 武汉楚天激光（集团）股份有限公司 | Rotating reflection focusing system |
| CN101758331A (en) * | 2009-11-25 | 2010-06-30 | 深圳市大族激光科技股份有限公司 | Integrated device for dust adsorption and air-entrapping |
| CN201907274U (en) * | 2010-12-31 | 2011-07-27 | 东莞市开泰激光科技有限公司 | Air blowing protector for marking machine scanner |
| CN202130137U (en) * | 2011-06-24 | 2012-02-01 | 深圳市大族激光科技股份有限公司 | Lens dustproof protective device and laser marking machine |
-
2014
- 2014-03-31 CN CN201410127441.8A patent/CN104942436B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130695A (en) * | 1983-01-14 | 1984-07-27 | Inoue Japax Res Inc | Optical working device |
| CN101318260A (en) * | 2008-06-25 | 2008-12-10 | 深圳市大族激光科技股份有限公司 | Cover gas blowing device for laser welder head |
| CN201353685Y (en) * | 2008-12-30 | 2009-12-02 | 武汉楚天激光（集团）股份有限公司 | Rotating reflection focusing system |
| CN101758331A (en) * | 2009-11-25 | 2010-06-30 | 深圳市大族激光科技股份有限公司 | Integrated device for dust adsorption and air-entrapping |
| CN201907274U (en) * | 2010-12-31 | 2011-07-27 | 东莞市开泰激光科技有限公司 | Air blowing protector for marking machine scanner |
| CN202130137U (en) * | 2011-06-24 | 2012-02-01 | 深圳市大族激光科技股份有限公司 | Lens dustproof protective device and laser marking machine |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346145A (en) * | 2016-11-23 | 2017-01-25 | 佛山智达思佳机电科技有限公司 | Carbon dioxide laser drilling device capable of achieving quick drilling |
| CN108248196A (en) * | 2016-12-29 | 2018-07-06 | 上海运安制版有限公司 | A kind of printing plate cylinder laser engraving scavenger system |
| CN106825919A (en) * | 2017-03-24 | 2017-06-13 | 燕山大学 | A kind of laser head lens protecting device |
| CN106825919B (en) * | 2017-03-24 | 2018-12-07 | 燕山大学 | A kind of laser head lens protecting device |
| CN107127451A (en) * | 2017-05-12 | 2017-09-05 | 东莞市力星激光科技有限公司 | A kind of electrokinetic cell low energy consumption laser welding process |
| CN109093236A (en) * | 2018-11-02 | 2018-12-28 | 上海气焊机厂有限公司 | A kind of method for plasma cutting and plasma cutting machine |
| CN109202281A (en) * | 2018-11-22 | 2019-01-15 | 京东方科技集团股份有限公司 | A kind of dust-extraction unit, laser cutting machine |
| CN109202281B (en) * | 2018-11-22 | 2021-09-17 | 京东方科技集团股份有限公司 | Dust collector, laser cutting machine |
| CN109351973A (en) * | 2018-12-18 | 2019-02-19 | 苏州大学 | A kind of three-dimensional space any direction cladding forming method |
| CN112171054A (en) * | 2019-07-03 | 2021-01-05 | 通快激光与系统工程有限公司 | Laser welding auxiliary gas applying device, manufacturing method thereof and laser welding system |
| CN110369866A (en) * | 2019-08-09 | 2019-10-25 | 湖南城市学院 | A kind of gas protecting device for laser welding |
| CN111482699A (en) * | 2020-04-22 | 2020-08-04 | 太原理工大学 | High-power laser welding plasma suppression method |
| CN111541145A (en) * | 2020-05-11 | 2020-08-14 | 江西亮弘光电科技有限公司 | Laser diode sealing cap machine table with cleaning function |
| CN116252047A (en) * | 2023-05-15 | 2023-06-13 | 深圳市智博泰克科技有限公司 | Double-light-path composite laser welding galvanometer system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104942436B (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104942436A (en) | Variable-focus laser welding equipment, blowing protecting device thereof and blowing protecting method | |
| CN204818431U (en) | Laser welding device who contains dust removal structure | |
| CN202278309U (en) | Laser welding spatter protecting gas shield device | |
| CN103170744B (en) | Laser soldering device and welding method | |
| CN101262978B (en) | Welding torch with extendible fixing element for gas nozzle, processing and controlling method for welding system equipped with the welding torch, gas nozzle for the welding torch, and conductive tube | |
| CN101758331B (en) | Integrated device for dust adsorption and air-entrapping | |
| CN104379297B (en) | There is the laser process equipment relative to the movable laser Machining head of jaw | |
| EP1832380A1 (en) | Laser welding | |
| CN109153096A (en) | Laser soldering device and method for laser welding | |
| CN204524551U (en) | A kind of Laser Welding finger-type side-blown protective device | |
| CN103978310B (en) | A kind of hardware surface fine crack restorative procedure and device | |
| CN109570755A (en) | A kind of laser welding gas shield device, laser welding apparatus and application method | |
| CN106271082A (en) | Protection air knife for laserHybrid welding | |
| CN214392800U (en) | Laser-beam welding machine camera lens protection device | |
| CN201537778U (en) | Alignment focusing laser welding device | |
| CN207629424U (en) | A kind of ultrafast laser air film hole highly-efficient processing device | |
| CN206316540U (en) | Laser head | |
| CN202667920U (en) | Dust blowing device for laser-beam welding machine | |
| CN202099345U (en) | Coaxial blowing type gas protection device | |
| CN106271064A (en) | Improve the auxiliary device of Laser Processing ability and improve method | |
| CN204248218U (en) | A kind of Laser Welding protection valve possessing dust treatment function | |
| CN208408883U (en) | A kind of laser welding head | |
| CN206029007U (en) | Electron -beam welding connects lap joint structure | |
| CN104625402B (en) | The side-blown protection device of laser welded seam, welding equipment and welding method | |
| CN107953029A (en) | Welder and welding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |