CN110091058A - Laser soldering device and method - Google Patents

Laser soldering device and method Download PDF

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Publication number
CN110091058A
CN110091058A CN201910390811.XA CN201910390811A CN110091058A CN 110091058 A CN110091058 A CN 110091058A CN 201910390811 A CN201910390811 A CN 201910390811A CN 110091058 A CN110091058 A CN 110091058A
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CN
China
Prior art keywords
weld seam
jig platform
welding
welded workpiece
sliding support
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
Application number
CN201910390811.XA
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Chinese (zh)
Other versions
CN110091058B (en
Inventor
邹春江
李�杰
甘伟彪
于成松
潘佐梅
唐景龙
曹明辉
唐振球
李亚伦
陈根余
陈焱
高云峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Han's Intelligent Welding Equipment Co ltd
Han s Laser Technology Industry Group Co Ltd
Original Assignee
Han s Laser Technology Industry Group Co Ltd
Hans Laser Smart Equipment Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Han s Laser Technology Industry Group Co Ltd, Hans Laser Smart Equipment Group Co Ltd filed Critical Han s Laser Technology Industry Group Co Ltd
Priority to CN201910390811.XA priority Critical patent/CN110091058B/en
Publication of CN110091058A publication Critical patent/CN110091058A/en
Application granted granted Critical
Publication of CN110091058B publication Critical patent/CN110091058B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/083Devices involving movement of the workpiece in at least one axial direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • B23K26/0869Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

The present invention provides a kind of laser soldering device and method, the laser soldering device includes: clamping mechanism, including slide unit, jig platform, fiducial and clamp assemblies;Laser welding mechanism, the plumb joint that the weld seam of welded workpiece is welded including sliding support and for emitting laser;Elevating mechanism drives sliding support to move horizontally or be vertically moved up or down;Displacement device is turned round, for driving jig platform to overturn.The double-sided laser that the present invention can carry out disposal molding to welded workpiece welds, and with automatic turning welded workpiece and can be not necessarily to secondary clamping and positioning in welding process, avoid and be partially welded phenomenon;It also not will cause the welded workpiece inconel weld cracking after single-sided welding finishes simultaneously, improve the quality stability and product yield of welding welded workpiece, reduce human cost.

Description

Laser soldering device and method
Technical field
The invention belongs to technical field of laser welding, are to be related to a kind of laser soldering device and method more specifically.
Background technique
Due to household with aluminum profile cabinet body door-plate (such as: the ornamental aluminum profile cabinet body door-plate of household, kitchen tools class and its door Board group is closed) length is longer, it might even be possible to 3 meters are up to, therefore produces the mould and die accuracy of supplied materials door-plate there are deviation, may be caused There are certain deviation (such as in 0.3mm) for the side width of supplied materials door-plate, and the length direction of supplied materials door-plate can also have centainly Degree of disturbing deform (such as in 0.5mm), and then the splicing welding joint gap resulted in the need between the supplied materials door-plate spliced is excessive, And it is easy to produce the problem on deformation after splicing;Meanwhile when end of door plate is spliced, the tow sides of end of door plate is needed to carry out Welding after end of door plate clamping and welding finish front, generallys use artificial overturning door-plate and welds door-plate again in the prior art Reverse side needs end of door plate to carry out secondary clamping and positioning at this time, the position while welding offset for causing front and back to be welded twice, and then occurs It is partially welded phenomenon, and the inconel weld welded is easy to cause to crack after door-plate single-sided welding by the way of manually overturning, so Waste product fraction defective is easily caused to rise.
Summary of the invention
The purpose of the present invention is to provide a kind of laser soldering device and methods, for solving above-mentioned technical problem.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of laser soldering device is provided, comprising:
Clamping mechanism, including slide unit, jig platform, fiducial and clamp assemblies;The jig platform is horizontally set on On the slide unit, the fiducial and the clamp assemblies are arranged on the jig platform;
Laser welding mechanism welds the weld seam of the welded workpiece including sliding support and for emitting laser The plumb joint connect;The plumb joint is mounted on the sliding support;Correspond to the position of the weld seam on the jig platform Equipped with through-hole;
Elevating mechanism, the sliding support are mounted on the elevating mechanism, and the elevating mechanism is for driving the cunning Dynamic support level is mobile or is vertically moved up or down;
Displacement device is turned round, is connect with the jig platform, and the revolution displacement device is for driving the fixture flat Platform overturning.
In one embodiment, the fiducial includes the first reference block and the second reference block, on first reference block Equipped with the first datum level, second reference block is equipped with the second datum level, first datum level and second datum level It is each perpendicular to horizontal plane, and first datum level is vertical with second datum level, the welded workpiece passes through described the One datum level is aligned with second datum level.
In one embodiment, the clamp assemblies include the pressure plate of elastic cylinder and the connection elastic cylinder, described The side on the jig platform with the first datum level face is arranged in pressure plate;The pressure plate is equipped with seal face, The seal face is parallel with first datum level;Between first datum level, second datum level and the seal face A holding part is surrounded, the elastic cylinder drives the pressure plate to move on the direction vertical with the seal face, to compress Or loosen the welded workpiece being placed in the holding part.
In one embodiment, the clamp assemblies further include swing arm cylinder and the connection that the periphery of the holding part is arranged in The pressure arm of the swing arm cylinder, the periphery that the swing arm cylinder drives the pressure arm from the holding part rotate described to being placed on Above the welded workpiece in holding part and compress the welded workpiece.
In one embodiment, the clamp assemblies include press beam, mounting base, linear bearing and lifting cylinder, the lifting Cylinder is mounted on the jig platform, and the linear bearing is set in the drive shaft of the lifting cylinder, the mounting base It is connected to the linear bearing, and the press beam is fixed in the mounting base;The lifting cylinder passes through the linear bearing The press beam is driven to compress or loosen the welded workpiece being placed on the jig platform with the mounting base.
In one embodiment, the press beam is two, and two press beams are separately positioned on the weldering of the welded workpiece The two sides of seam, two press beams are arranged in parallel with the weld seam.
In one embodiment, the side of welded workpiece described in the press beam face is equipped with spring-loaded plunger, and the press beam is logical It crosses the spring-loaded plunger and compresses the welded workpiece being placed on the jig platform.
In one embodiment, the elevating mechanism is equipped with guide rail and folding and unfolding cylinder, and the laser welding mechanism further includes Roll wheel assembly;The sliding support is slidably connected with the guide rail, and the roll wheel assembly is mounted on the sliding support, described Folding and unfolding cylinder is connected to the sliding support, and the folding and unfolding cylinder drives the sliding support to move along the guide rail, in turn The roll wheel assembly is driven to compress or loosen the welded workpiece being placed on the jig platform.
In one embodiment, the roll wheel assembly includes fixing seat, spring, guide post and idler wheel, and the fixing seat is equipped with Mounting hole, the fixing seat are mounted on the sliding support, and the guide post and the spring are mounted in the mounting hole, institute It states guide post one end and is connected to the idler wheel, the other end of the guide post is abutted with the spring.
In one embodiment, the plumb joint is to swing plumb joint;It is additionally provided on the sliding support for conveying welding wire Send welding wire mechanism.
The present invention also provides a kind of method for laser welding, comprising the following steps:
After being aligned by fiducial, welded workpiece is placed on jig platform;Wherein, described to be welded There is weld seam to be welded, and the weld seam is face-up on workpiece;
The welded workpiece is fixed on jig platform by clamp assemblies;
Enable elevating mechanism drive plumb joint to move horizontally by sliding support and vertically drop to above the weld seam the At one pre-determined distance;
Front welding sign on is received, the plumb joint transmitting laser is enabled to weld the front of the weld seam, and In the welding process, slide unit drives the jig platform to move horizontally along the welding direction of the weld seam;
It receives face bonding and connects END instruction, the elevating mechanism is enabled to drive the plumb joint to rise by the sliding support At the second pre-determined distance above to the weld seam and then the elevating mechanism is enabled to drive the sliding support to far from described The direction of jig platform moves horizontally;Second pre-determined distance is greater than first pre-determined distance;
By revolution displacement device by the jig platform overturn to the weld seam reverse side upward, enable the elevating mechanism It drives the plumb joint to move horizontally by sliding support and vertically declines, until the plumb joint stretches to the jig platform In through-hole after overturning, and the distance between the plumb joint and the weld seam are first pre-determined distance;
It receives reverse side and welds sign on, the plumb joint transmitting laser is enabled to weld the reverse side of the weld seam, and In the welding process, the slide unit drives the jig platform to move horizontally along the welding direction of the weld seam;
It receives reverse side and welds END instruction, the elevating mechanism is enabled to drive the plumb joint to rise by the sliding support At to second pre-determined distance above the weld seam and then the elevating mechanism is enabled to drive the sliding support to separate The direction of the jig platform moves horizontally, and is overturn the jig platform to the weld seam by the revolution displacement device Face-up, the welded workpiece is unloaded.
The beneficial effect of laser soldering device provided by the invention and method is: compared with prior art, the present invention swashs The fiducial and clamp assemblies of flush weld connection device can be accurate by welded workpiece (such as door-plate) and be firmly mounted to press from both sides Have on platform;Revolution displacement device can overturn jig platform, so that the front or back of weld seam is upward, and then complete to be welded Connect the two-sided welding of the weld seam of workpiece;Plumb joint can emit laser and weld to the weld seam of welded workpiece, and weld In the process, slide unit drives jig platform to move horizontally in the welding direction of weld seam, to cooperate plumb joint to complete welding;Elevator Structure can drive sliding support (and then driving the plumb joint installed on sliding support) to move horizontally or be vertically moved up or down, so that welding Plumb joint can be also moved to by elevating mechanism and be put down far from the fixture to weld to the weld seam by head alignment weld seam It causes to interfere to avoid the overturning to jig platform in the position of platform.The present invention can be directed to the huge welded workpiece of production quantity The double-sided laser welding of disposal molding is carried out, and in the welding process, it can be with automatic turning welded workpiece and without secondary Clamping and positioning, avoid and are partially welded phenomenon;Simultaneously because welded workpiece therefore will not be made as jig platform is overturn together After being finished at single-sided welding welded workpiece inconel weld cracking, improve welding welded workpiece quality stability and Product yield, while reducing human cost.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these Attached drawing obtains other attached drawings.
Fig. 1 is the main view for the laser soldering device that one embodiment of the invention provides;
Fig. 2 is the portion the A enlarged structure schematic diagram of laser soldering device shown in Fig. 1;
Fig. 3 is the left view for the laser soldering device that one embodiment of the invention provides;
Fig. 4 is the top view for the laser soldering device that one embodiment of the invention provides;
Fig. 5 is the partial structure diagram for the laser soldering device that one embodiment of the invention provides;
Fig. 6 is the section B-B structural schematic diagram of laser soldering device shown in Fig. 5.
Appended drawing reference in specification is as follows:
1, clamping mechanism;11, jig platform;12, through-hole;13, fiducial;131, the first reference block;132, the second base Quasi- block;14, clamp assemblies;141, elastic cylinder;142, pressure plate;143, swing arm cylinder;144, pressure arm;145, press beam;146, Mounting base;147, linear bearing;148, lifting cylinder;149, spring-loaded plunger;2, laser welding mechanism;21, sliding support;22, Plumb joint;23, roll wheel assembly;231, fixing seat;232, spring;233, guide post;234, idler wheel;235, mounting hole;24, welding wire is sent Mechanism;3, elevating mechanism;31, guide rail;32, folding and unfolding cylinder;4, welded workpiece.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or indirectly on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.
Now laser soldering device provided by the invention and method are illustrated.Please refer to Fig. 1 to Fig. 6, the Laser Welding Connection device, comprising:
Clamping mechanism 1, including slide unit (not shown), jig platform 11, fiducial 13 and clamp assemblies 14;The fixture Platform 11 is horizontally set on the slide unit, and the fiducial 13 and the clamp assemblies 14 are arranged in the jig platform 11 On;After the welded workpiece 4 is aligned by fiducial 13, the fixture is fixed on by the clamp assemblies 14 On platform 11;The slide unit drives the jig platform 11 to move horizontally.Understandably, in the present invention, the work to be welded Part 4 can refer to one piece of welded workpiece with weld seam, and it is to be welded can also to refer to that two pieces or more mutual needs weld Workpiece is connect, at this point, the welding position between two pieces or more of welded workpiece is weld seam.
Laser welding mechanism 2, including sliding support 21 and for emit laser to the weld seam of the welded workpiece 4 into The plumb joint 22 of row welding;The plumb joint 22 is mounted on the sliding support 21;Correspond to institute on the jig platform 11 The position for stating weld seam is equipped with through-hole 12.
Elevating mechanism 3, the sliding support 21 are mounted on the elevating mechanism 3, and the elevating mechanism 3 is for driving institute Sliding support 21 is stated to move horizontally or be vertically moved up or down;Understandably, the elevating mechanism 3 includes moving horizontally component and lifting group Part, the component that moves horizontally can be driven with lifting assembly by power mechanisms such as motor or cylinders, and institute It states and moves horizontally component the sliding support 21 is driven to move horizontally, lifting assembly drives sliding support 21 to be vertically moved up or down.
Displacement device (not shown) is turned round, is connect with the jig platform 11, and the revolution displacement device is for driving The jig platform 11 is overturn.
In above-described embodiment, the course of work of the laser soldering device are as follows:
Welded workpiece 4 is aligned by fiducial 13, then welded workpiece 4 is placed on jig platform 11 On;Wherein, on the welded workpiece 4 have weld seam to be welded, and at this time the weld seam it is face-up (namely, it is believed that When welded workpiece 4 is mounted on jig platform, the weld seam on welded workpiece 4 is face-up at this time);Hereafter, pass through The welded workpiece 4 is fixed on jig platform 11 by clamp assemblies 14.Elevating mechanism 3 is enabled to drive weldering by sliding support 21 Connector 22 moves horizontally and vertically drops to the first pre-determined distance above the weld seam (first pre-determined distance can basis Welding demand is configured) at.
Front welding sign on is received, enables the plumb joint 22 emit laser and the front of the weld seam is welded, And in the welding process, slide unit drives the jig platform 11 to move horizontally along the welding direction of the weld seam;The face bonding It connects sign on and can be and detecting that plumb joint 22 moves horizontally and vertically drop to the first of the upper front of the weld seam It when at pre-determined distance, is sent, can also be started in the default front welding of triggering automatically by the control system of the laser soldering device It is sent after button.
It receives face bonding and connects END instruction, the elevating mechanism 3 is enabled to drive the plumb joint by the sliding support 21 At 22 the second pre-determined distances risen to above the weld seam (second pre-determined distance can be configured according to demand) it Afterwards, then enable the elevating mechanism 3 that the sliding support 21 is driven to move horizontally to the direction far from the jig platform 11;It is described Second pre-determined distance is greater than first pre-determined distance.The face bonding, which connects END instruction and can be, is confirming the weld seam just After face welding finishes and (confirms after can welding the coordinate for finishing or arriving at welding end point judging default weld length) It is sent, can also be sent after triggering default face bonding and connecing conclusion button automatically by the control system of the laser soldering device. The stopping when sliding support 21 is moved horizontally to predeterminated position to the direction far from the jig platform 11, which can To be determined by user according to the interference position relationship between elevating mechanism 3 and laser welding mechanism 2 and clamping mechanism 1, Elevating mechanism 3 and laser welding mechanism 2 will not be made to make the overturning of the jig platform 11 in clamping mechanism 1 in the predeterminated position At interference.
By revolution displacement device by the jig platform 11 overturn to the weld seam reverse side upward, enable the elevator Structure 3 drives the plumb joint 22 to move horizontally and vertically decline by sliding support 21, until the plumb joint 22 stretches to institute It states in the through-hole 12 after jig platform 11 is overturn, and the distance between the plumb joint 22 and the weld seam are described first pre- If distance;That is, the back side of jig platform 11 is equipped with through-hole 12, it is to can also weld after the overturning of jig platform 11 The reverse side of seam is exposed, and carries out reverse side welding to the weld seam in order to protrude into plumb joint 22 in through-hole 12.Understandably, exist When the thickness that the jig platform 11 corresponds at the through-hole 12 is less than first pre-determined distance, the plumb joint 22 is not necessarily to It protrudes into the through-hole 12, as long as but resting on the top of the through-hole 12.
It receives reverse side and welds sign on, enable the plumb joint 22 emit laser and the reverse side of the weld seam is welded, And in the welding process, the slide unit drives the jig platform 11 to move horizontally along the welding direction of the weld seam;Similarly, institute It states reverse side welding sign on and can be and detecting that plumb joint 22 moves horizontally and vertically drop on the reverse side of the weld seam It when at the first pre-determined distance of side, is sent automatically by the control system of the laser soldering device, default reverse side can also triggered Start button is welded to send later.
It receives reverse side and welds END instruction, the elevating mechanism 3 is enabled to drive the plumb joint by the sliding support 21 22 rise at second pre-determined distance above the weld seam and then enable the elevating mechanism 3 to drive the sliding branch Frame 21 is moved horizontally to the direction far from the jig platform 11 (to the predeterminated position), will by the revolution displacement device The overturning of jig platform 11 is face-up to the weld seam, unloads the welded workpiece 4, completes to the work to be welded The welding assembly process of the disposal molding of part 4, which can be with automated execution.
In laser soldering device in the above-described embodiments, fiducial 13 and clamp assemblies 14 can be by welded workpieces 4 is accurate and be firmly mounted on jig platform 11;Revolution displacement device can overturn jig platform 11, so that weld seam is just Face or reverse side upward, and then complete the two-sided welding of the weld seam of welded workpiece 4;Plumb joint 22 can emit laser to be welded The weld seam of workpiece 4 is welded, and in the welding process, and slide unit drives jig platform 11 is horizontal in the welding direction of weld seam to move It is dynamic, to cooperate plumb joint 22 to complete welding;Elevating mechanism 3 can drive sliding support 21 (and then drive sliding support 21 on pacify The plumb joint 22 of dress) it moves horizontally or is vertically moved up or down, so that plumb joint 22 is directed at weld seam to weld to the weld seam, while also Plumb joint 22 can be moved to the position far from the jig platform 11 to avoid turning over to jig platform 11 by elevating mechanism 3 Turn to cause to interfere.The present invention can carry out the double-sided laser weldering of disposal molding for the huge welded workpiece 4 of production quantity It connects, and in the welding process, with automatic turning welded workpiece 4 and secondary clamping and positioning can be not necessarily to, avoid and be partially welded phenomenon; It also not will cause 4 inconel weld of the welded workpiece cracking after single-sided welding finishes simultaneously, improve welding welded workpiece 4 Quality stability and product yield, while reducing human cost.
In one embodiment, referring to Fig.1 and Fig. 4, the fiducial 13 includes the first reference block 131 and the second reference block 132, first reference block 131 is equipped with the first datum level, and second reference block 132 is equipped with the second datum level, described First datum level and second datum level are each perpendicular to horizontal plane, and first datum level and second datum level hang down Directly, the welded workpiece 4 is aligned by first datum level and second datum level.Implementation as shown in Figure 4 In example, after 4 feeding of welded workpiece is put on jig platform 11, two adjacent sides of welded workpiece 4 are distinguished It is directed at and is adjacent to the first reference block 131 and the second reference block 132, so that the adjacent face of welded workpiece 4 is to its benchmark, at this time Weld seam is directed at through-hole 12.
In one embodiment, such as Fig. 1 to Fig. 6, the clamp assemblies 14 include elastic cylinder 141 and the connection elastic gas One with the first datum level face on the jig platform 11 is arranged in the pressure plate 142 of cylinder 141, the pressure plate 142 Side;The pressure plate 142 is equipped with seal face, and the seal face is parallel with first datum level;First datum level, institute State and surround a holding part between the second datum level and the seal face, the elastic cylinder 141 drive the pressure plate 142 with The seal face moves on vertical direction, to compress or loosen the welded workpiece 4 being placed in the holding part.? That is, so that pressure plate 142 is mobile to the first datum level, holding part reduces at this time after the elastic cylinder 141 is ventilated, compress Plate 142 pushes the welded workpiece 4 being placed in holding part, so that welded workpiece 41 compresses the first reference block 131, completes to hang down Directly on the direction of the first datum level to the clamping position of welded workpiece 4.
In one embodiment, such as Fig. 1 to Fig. 6, the clamp assemblies 14 further include the periphery that the holding part is arranged in Swing arm cylinder 143 and the pressure arm 144 for connecting the swing arm cylinder 143, the swing arm cylinder 143 drive the pressure arm 144 from institute The periphery for stating holding part rotates to 4 top of the welded workpiece being placed in the holding part and compresses the work to be welded Part 4.In embodiment as shown in Figure 4, pressure arm 144 is parallel with the first datum level in swing arm 143 stuffiness of cylinder, at this time pressure arm 144 with holding part in welded workpiece 4 not in contact with, swing arm cylinder 143 ventilation after, drive pressure arm 144 be rotated by 90 ° pressure Tightly in the upper surface of welded workpiece 4, pressure arm 144 compresses on the direction vertical with the first datum level and is placed on holding part at this time In welded workpiece 4 so that the freedom degree of welded workpiece 4 in vertical direction is defined.
In one embodiment, as shown in Figure 1 to Figure 4, the clamp assemblies 14 include press beam 145, mounting base 146, linear bearing 147 and lifting cylinder 148, the lifting cylinder 148 be mounted on the jig platform 11, the linear bearing 147 is set in In the drive shaft of the lifting cylinder 148, the mounting base 146 is connected to the linear bearing 147, and the press beam 145 is solid It is scheduled in the mounting base 146;The lifting cylinder 148 is driven by the linear bearing 147 with the mounting base 146 described Press beam 145 compresses or loosens the welded workpiece 4 being placed on the jig platform 11.In this embodiment, the liter After sending down abnormally ascending cylinder 148 is ventilated, the drive shaft of lifting cylinder 148 is fixed on whole in mounting base 146 by the drive of linear bearing 147 Root profile press beam 145 compresses downwards the upper surface for the welded workpiece 4 being placed in holding part.
In one embodiment, as shown in Figure 1 to Figure 4, the press beam 145 is two, and two press beams 145 are separately positioned on institute The two sides of the weld seam of welded workpiece 4 are stated, two press beams 145 are arranged in parallel with the weld seam.Two press beams 145 can be with Meet the contour and level requirement of the welding position of the weld seam two sides of welded workpiece 4.In one embodiment, as shown in Figure 1 to Figure 4, The side of welded workpiece 4 described in 145 face of press beam is equipped with spring-loaded plunger 149, and the press beam 145 passes through the spring stack Plug 149 compresses the welded workpiece 4 being placed on the jig platform 11.Since the length of welded workpiece 4 is longer, very To can achieve 3 meters, therefore press beam 145 is longer across 4 both ends stroke of welded workpiece, to avoid whole profile press beam 145 Degree of disturbing deformation, interval setting has the short of flexible stroke (for example flexible stroke can be 5 millimeters) in the press beam 145 Spring-loaded plunger 149, can be by the dilatation of the spring-loaded plunger 149, so that the plunger head of the spring-loaded plunger 149 is always The upper surface of holding compression fitting welded workpiece 4, the welding position of the further weld seam two sides for keeping welded workpiece 4 etc. High and level requirement.
In one embodiment, such as Fig. 3 to Fig. 6, the elevating mechanism 3 is equipped with guide rail 31 and folding and unfolding cylinder 32, described to swash Photocoagulation mechanism 2 further includes roll wheel assembly 23;The sliding support 21 is slidably connected with the guide rail 31, the roll wheel assembly 23 It is mounted on the sliding support 21, the folding and unfolding cylinder 32 is connected to the sliding support 21, and 32 band of folding and unfolding cylinder It moves the sliding support 21 to move along the guide rail 31, and then drives the roll wheel assembly 23 to compress or loosen and be placed on the folder Has the welded workpiece 4 on platform 11.In the present embodiment, 3 lower end of elevating mechanism is equipped with sliding support 21, sliding branch 21 two sides of frame are equipped with guide rail 31, the folding and unfolding cylinder 32 by the way that 21 two sides of sliding support are arranged in can drive elevating mechanism 3 (into And drive roll wheel assembly 23 and plumb joint 22) move up and down in short stroke range, and plumb joint 22 is driven in the elevating mechanism 3 It moves down into after position while welding, roll wheel assembly 23 is pressed on the welded workpiece 4, so that passing through 22 butt welding of plumb joint Seam is when being welded, so as to flush effect more preferable for the position around weld seam.
In one embodiment, such as Fig. 3 to Fig. 6, the roll wheel assembly 23 includes fixing seat 231,232 (preferably square of spring Shape spring), guide post 233 and idler wheel 234, the fixing seat 231 is equipped with mounting hole 235, and the fixing seat 231 is mounted on described On sliding support 21, the guide post 233 and the spring 232 are mounted on the mounting hole 235 (quantity of mounting hole 235 can be with Set according to demand, preferably 4) in, described 233 one end of guide post is connected to the idler wheel 234, the guide post 233 it is another End is abutted with the spring 232.In the above-described embodiments, fixing seat 231 is fixed on 21 lower end of sliding support, and spring 232 passes through Guide post 233 is mounted in the mounting hole 235 of fixing seat 231, idler wheel 234 can be driven in short stroke range by folding and unfolding cylinder 32 It moves up and down, and after the idler wheel 234 is displaced downwardly in company with elevating mechanism 3 together and to abut with welded workpiece 4, can pass through The pressure of 232 dilatation adjust automatically idler wheel 234 of spring compression welded workpiece 4.
In the present invention, after completing to the positive welding of weld seam, the elevating mechanism 3 rises and moves away from The safety zone (predeterminated position) of welded workpiece 4, is arranged in the revolution positioner clamping fixture at 11 both ends of jig platform Platform 11 realizes 180 ° of overturning, so that the back side of weld seam is upward, elevating mechanism 3 drives plumb joint 22 to again move into and reaches at this time Back of weld position, since idler wheel 234 compresses 4 surface of welded workpiece by 232 dilatation of spring, welded in welding When the back side of seam, make on welded workpiece 4 in order to avoid idler wheel 234 is excessive by the dilatation pressure of spring 232 It completes single fillet welded commissure to bear excessive pressing force and be damaged, at this point it is possible to by the way that folding and unfolding cylinder 32 is ventilated, so that sliding Dynamic bracket 21 drives idler wheel 234 to rise together and far from the weld seam, so that idler wheel 234 is detached from position while welding, at this time plumb joint 22 Voluntarily protrude into 12 position of through-hole and weld seam carried out to the reverse side of welding, and jig platform 11 in company with the slide unit of lower section together in plumb joint 22 pairs of weld seams weld during towards weld seam welding direction it is mobile, realize the reverse side of the weld seam of welded workpiece 4 Uninterrupted welding.
In one embodiment, the plumb joint 22 is to swing plumb joint 22;It is additionally provided on the sliding support 21 for defeated That send welding wire send welding wire mechanism 24.Since weld gap is bigger, therefore selects and swing plumb joint 22, while welding wire mechanism is sent in cooperation 24 realize the laser silk filling swing welding to welded workpiece 4, and jig platform 11 can exist together in company with the slipway mechanism of lower section The welding direction movement during welding towards weld seam is swung, realizes that the uninterrupted of the reverse side of the weld seam of welded workpiece 4 swashs Light, which fills silk, swings welding.
The present invention also provides a kind of method for laser welding, correspond to above-mentioned laser soldering device, please refer to Fig. 1 and Fig. 2, institute State method for laser welding the following steps are included:
After being aligned by fiducial 13, welded workpiece 4 is placed on jig platform 11;Wherein, described There is weld seam to be welded, and the weld seam is face-up on welded workpiece 4;
The welded workpiece 4 is fixed on jig platform 11 by clamp assemblies 14;
It enables elevating mechanism 3 drive plumb joint 22 to move horizontally by sliding support 21 and vertically drops to above the weld seam The first pre-determined distance at;
Front welding sign on is received, enables the plumb joint 22 emit laser and the front of the weld seam is welded, And in the welding process, slide unit drives the jig platform 11 to move horizontally along the welding direction of the weld seam;
It receives face bonding and connects END instruction, the elevating mechanism 3 is enabled to drive the plumb joint by the sliding support 21 At 22 the second pre-determined distances risen to above the weld seam and then the elevating mechanism 3 is enabled to drive the sliding support 21 It is moved horizontally to the direction far from the jig platform 11;Second pre-determined distance is greater than first pre-determined distance;
By revolution displacement device by the jig platform 11 overturn to the weld seam reverse side upward, enable the elevator Structure 3 drives the plumb joint 22 to move horizontally and vertically decline by sliding support 21, until the plumb joint 22 stretches to institute It states in the through-hole 12 after jig platform 11 is overturn, and the distance between the plumb joint 22 and the weld seam are described first pre- If distance;
It receives reverse side and welds sign on, enable the plumb joint 22 emit laser and the reverse side of the weld seam is welded, And in the welding process, the slide unit drives the jig platform 11 to move horizontally along the welding direction of the weld seam;
It receives reverse side and welds END instruction, the elevating mechanism 3 is enabled to drive the plumb joint by the sliding support 21 22 rise at second pre-determined distance above the weld seam and then enable the elevating mechanism 3 to drive the sliding branch Frame 21 is moved horizontally to the direction far from the jig platform 11, is turned over the jig platform 11 by the revolution displacement device The face-up of the weld seam is gone to, the welded workpiece 4 is unloaded.
Method for laser welding in the above-described embodiments, fiducial 13 and clamp assemblies 14 can be by welded workpieces 4 Accurately and it is firmly mounted on jig platform 11;Revolution displacement device can overturn jig platform 11, so that weld seam is just Face or reverse side upward, and then complete the two-sided welding of the weld seam of welded workpiece 4;Plumb joint 22 can emit laser to be welded The weld seam of workpiece 4 is welded, and in the welding process, and slide unit drives jig platform 11 is horizontal in the welding direction of weld seam to move It is dynamic, to cooperate plumb joint 22 to complete welding;Elevating mechanism 3 can drive sliding support 21 (and then drive sliding support 21 on pacify The plumb joint 22 of dress) it moves horizontally or is vertically moved up or down, so that plumb joint 22 is directed at weld seam to weld to the weld seam, while also Plumb joint 22 can be moved to the position far from the jig platform 11 to avoid turning over to jig platform 11 by elevating mechanism 3 Turn to cause to interfere.The present invention can carry out the double-sided laser weldering of disposal molding for the huge welded workpiece 4 of production quantity It connects, and in the welding process, with automatic turning welded workpiece 4 and secondary clamping and positioning can be not necessarily to, avoid and be partially welded phenomenon; It also not will cause 4 inconel weld of the welded workpiece cracking after single-sided welding finishes simultaneously, improve welding welded workpiece 4 Quality stability and product yield, while reducing human cost.
Understandably, the present invention can be used for the two-sided welding of welded workpiece, can be used for other similar workpiece Welding also may be used.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations;Although referring to aforementioned reality Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features;And these are modified Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all It is included within protection scope of the present invention.

Claims (11)

1. a kind of laser soldering device characterized by comprising
Clamping mechanism, including slide unit, jig platform, fiducial and clamp assemblies;The jig platform is horizontally set on described On slide unit, the fiducial and the clamp assemblies are arranged on the jig platform;
Laser welding mechanism welds the weld seam of the welded workpiece including sliding support and for emitting laser Plumb joint;The plumb joint is mounted on the sliding support;Position on the jig platform corresponding to the weld seam is equipped with Through-hole;
Elevating mechanism, the sliding support are mounted on the elevating mechanism, and the elevating mechanism is for driving the sliding branch Frame is moved horizontally or is vertically moved up or down;
Displacement device is turned round, is connect with the jig platform, and the revolution displacement device is for driving the jig platform to turn over Turn.
2. laser soldering device as described in claim 1, which is characterized in that the fiducial includes the first reference block and the Two reference blocks, first reference block are equipped with the first datum level, and second reference block is equipped with the second datum level, and described the One datum level and second datum level are each perpendicular to horizontal plane, and first datum level is vertical with second datum level, The welded workpiece is aligned by first datum level and second datum level.
3. laser soldering device as claimed in claim 2, which is characterized in that the clamp assemblies include elastic cylinder and connection One with the first datum level face on the jig platform is arranged in the pressure plate of the elastic cylinder, the pressure plate Side;The pressure plate is equipped with seal face, and the seal face is parallel with first datum level;It is first datum level, described Surround a holding part between second datum level and the seal face, the elastic cylinder drive the pressure plate with the compression Face is moved on vertical direction, to compress or loosen the welded workpiece being placed in the holding part.
4. laser soldering device as claimed in claim 3, which is characterized in that the clamp assemblies further include being arranged in the appearance It sets the swing arm cylinder of the periphery in portion and connects the pressure arm of the swing arm cylinder, the swing arm cylinder drives the pressure arm from the appearance The periphery for setting portion rotates to the welded workpiece top being placed in the holding part and compresses the welded workpiece.
5. laser soldering device as described in claim 1, which is characterized in that the clamp assemblies include press beam, mounting base, straight Spool is held and lifting cylinder, and the lifting cylinder is mounted on the jig platform, and the linear bearing is set in the lifting In the drive shaft of cylinder, the mounting base is connected to the linear bearing, and the press beam is fixed in the mounting base;It is described Lifting cylinder drives the press beam to compress or loosen and is placed on the jig platform by the linear bearing and the mounting base On the welded workpiece.
6. laser soldering device as claimed in claim 5, which is characterized in that the press beam is two, two press beams point The two sides of the weld seam of the welded workpiece are not set, and two press beams are arranged in parallel with the weld seam.
7. laser soldering device as claimed in claim 5, which is characterized in that one of welded workpiece described in the press beam face Side is equipped with spring-loaded plunger, and the press beam compresses the work to be welded being placed on the jig platform by the spring-loaded plunger Part.
8. laser soldering device as described in claim 1, which is characterized in that the elevating mechanism is equipped with guide rail and folding and unfolding gas Cylinder, the laser welding mechanism further include roll wheel assembly;The sliding support is slidably connected with the guide rail, the roll wheel assembly It is mounted on the sliding support, the folding and unfolding cylinder is connected to the sliding support, and the folding and unfolding cylinder drives the cunning Dynamic bracket is moved along the guide rail, so drive the roll wheel assembly compress or loosen be placed on it is described on the jig platform Welded workpiece.
9. laser soldering device as claimed in claim 8, which is characterized in that the roll wheel assembly includes fixing seat, spring, leads Column and idler wheel, the fixing seat are equipped with mounting hole, and the fixing seat is mounted on the sliding support, the guide post and described Spring is mounted in the mounting hole, and described guide post one end is connected to the idler wheel, the other end of the guide post and the spring It abuts.
10. laser soldering device as described in claim 1, which is characterized in that the plumb joint is to swing plumb joint;The cunning It is additionally provided on dynamic bracket and send welding wire mechanism for convey welding wire.
11. a kind of method for laser welding, which comprises the following steps:
After being aligned by fiducial, welded workpiece is placed on jig platform;Wherein, the welded workpiece It is upper that there is weld seam to be welded, and the weld seam is face-up;
The welded workpiece is fixed on jig platform by clamp assemblies;
It enables elevating mechanism drive plumb joint to move horizontally by sliding support and vertically drops to first pre- above the weld seam If at distance;
Front welding sign on is received, enables the plumb joint transmitting laser to weld the front of the weld seam, and welding In termination process, slide unit drives the jig platform to move horizontally along the welding direction of the weld seam;
It receives face bonding and connects END instruction, the elevating mechanism is enabled to drive the plumb joint to rise to institute by the sliding support State at the second pre-determined distance above weld seam and then enable the elevating mechanism to drive the sliding support to far from the fixture The direction of platform moves horizontally;Second pre-determined distance is greater than first pre-determined distance;
By revolution displacement device by the jig platform overturn to the weld seam reverse side upward, enable the elevating mechanism pass through Sliding support drives the plumb joint to move horizontally and vertically decline, until the plumb joint stretches to the jig platform overturning In through-hole later, and the distance between the plumb joint and the weld seam are first pre-determined distance;
It receives reverse side and welds sign on, enable the plumb joint transmitting laser to weld the reverse side of the weld seam, and welding In termination process, the slide unit drives the jig platform to move horizontally along the welding direction of the weld seam;
It receives reverse side and welds END instruction, the elevating mechanism is enabled to drive the plumb joint to rise to institute by the sliding support State at second pre-determined distance above weld seam and then enable the elevating mechanism to drive the sliding support to far from described The direction of jig platform moves horizontally, and is overturn the jig platform to the front of the weld seam by the revolution displacement device Upward, the welded workpiece is unloaded.
CN201910390811.XA 2019-05-10 2019-05-10 Laser welding device and method Active CN110091058B (en)

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