CN109290690A - A kind of optical-fiber laser seam weld system - Google Patents
A kind of optical-fiber laser seam weld system Download PDFInfo
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- CN109290690A CN109290690A CN201811417202.0A CN201811417202A CN109290690A CN 109290690 A CN109290690 A CN 109290690A CN 201811417202 A CN201811417202 A CN 201811417202A CN 109290690 A CN109290690 A CN 109290690A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 77
- 238000003466 welding Methods 0.000 claims abstract description 105
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- 230000003068 static effect Effects 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 45
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 25
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 10
- 239000004065 semiconductor Substances 0.000 description 16
- 239000000835 fiber Substances 0.000 description 12
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- 238000005086 pumping Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
-
- 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
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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Abstract
The invention discloses a kind of optical-fiber laser seam weld systems, and including the work stage where laser and seam weld workpiece, laser is connect by energy transfer optical cable with laser welding head, and one of the laser beam that laser welding head is emitted and work stage are static, another movement；The opposing stationary component of moving component between the laser beam that laser welding head is issued and work stage is moved along the weld seam of seam weld workpiece.The invention proposes a kind of using contactless mode welding manner, can substitute the optical-fiber laser seam weld system of parallel seam sealing machine.Due to being contactless welding, it is entirely avoided the possibility of parallel seam sealing machine contact sparking needs to adjust many and diverse of pressure parameter when also contacting without parallel seam welding；The seam weld of weld seam is not limited by weld shape；In addition, directly can realize the welding of special low profile photovoltaic device package by adjusting laser energy for the special low profile photovoltaic device package that can not use parallel seam sealing machine seam weld.
Description
Technical field
The present invention relates to welding technology fields, and in particular to a kind of optical fibre optical fibre laser seam weld system.
Background technique
The photoelectric device that largely uses on the market at present, especially high speed optoelectronic device (such as fiber optic communication use half
Conductor Laser diode, InP detection diode etc.) all use the good butterfly packaged type of air-tightness.These photoelectric devices
Finally covering all is the Conventional parallel seam welder used using electric resistance welding as principle.
Two idler wheel Parallel Symmetrics of Conventional parallel seam welder, meet positive and negative the two of low-voltage and high-current seam weld power supply respectively
Pole, as shown in Figure 1.At the gap at cover and housing edge that two idler wheels are pressed respectively against seam weld, high current from positive idler wheel,
At the gap contacted by cover and housing, flow at the gap of cover and housing contact of the other end, then arrive the idler wheel of cathode.
Since the resistance ratio conductor resistance at cover and housing contiguously gap is big, heat can be generated when high current passes through at gap,
It is welded together gap between cover and housing；With the back-and-forth motion (or workpiece back-and-forth motion) of idler wheel, gap welding
It is in line, achievees the purpose that seam weld.
Due to being that two idler wheels are pushed down respectively at the contact gap of two cover and housing, seam weld goes out two parallel lines,
Therefore referred to as parallel seam sealing machine, also known as parallel welder.The principle of parallel seam welding is simple, and being easier to realize is its advantages；
It is relatively high to gap requirement but since parallel seam welding is contact weld, it is easy to appear sparking；And welding quality also depends on
In factors such as roller pressure, the voltage and current parameter of the pulse power, idler wheel travel speeds；Bigger shell is welded may be used also
With control, if the shell that welding is smaller, operation is difficult even can not seam weld；For the regular shape of rectangle and square
Can be with parallel seam welding, and the shell of irregular shape just cannot achieve parallel seam welding.
Summary of the invention
The object of the present invention is to provide existing Ohmic contact formula seam weld mode is changed, welded using optical fiber laser this
The parallel seam welding of a variety of weld seams is realized in non-contact welding.
In order to achieve the above object, technical solution proposed by the present invention is as follows:
A kind of optical-fiber laser seam weld system, including the work stage where laser and seam weld workpiece, the laser passes through
Energy transfer optical cable is connect with laser welding head, one of the laser beam that the laser welding head is emitted and the work stage
It is static, another movement；Moving component between the laser beam that the laser welding head is issued and the work stage is opposite quiet
Stop part is moved along the weld seam of seam weld workpiece.
Further: the laser welding head and welding platform are located in gas shield cabinet；In the gas shield cabinet
The gas being passed through is that nitrogen is connect by transfer tube with gas source.
Further: position while welding is provided with gas tip in work stage, and the gas tip passes through tracheae and argon gas
Source connection；Solenoid valve is installed on the tracheae.
Further: the laser and welding platform are located in gas shield cabinet.
Further: the gas being passed through in the gas shield cabinet is nitrogen or argon gas；Connected by transfer tube and gas source
It connects, solenoid valve is provided on transfer tube.
It is further: to further include CCD camera, the CCD camera is mounted on laser welding head, the CCD camera
Focus is overlapped with the focus of laser welding head, and coincidence point is directed at weld seam.
It is further: to further include the Z axis lead screw assembly perpendicular to work stage, the laser welding head is mounted on Z axis silk
On thick stick component.
It is further: to further include control system, the control system is computer, the laser, work stage, electromagnetism
Valve, CCD camera, Z axis lead screw assembly with calculate mechatronics.
Further: the laser welding head is static, and the work stage passes through the relatively described plumb joint edge of mobile platform
Workpiece weld seam movement.
Further: the mobile platform is the XY slide unit for being parallel to work stage, the XY slide unit and calculating mechatronics.
Further: the laser welding head is mirror-vibrating, and the work stage is static；The mirror-vibrating laser device welding
The laser beam opposite piece weld seam scanning motion that head is emitted.
Further: the mirror-vibrating laser device plumb joint is connect with computer.
The utility model has the advantages that
The invention proposes a kind of using contactless mode welding manner, can substitute the optical-fiber laser seam of parallel seam sealing machine
Weldering system.Due to being contactless welding, it is entirely avoided the possibility of parallel seam sealing machine contact sparking is also contacted without parallel seam welding
When need to adjust many and diverse of pressure parameter；Moreover, the seam weld to weld seam is not limited by weld shape, the weld seam of any shape is all
It can be realized using this system, be easy to realize the requirement of seam weld process automation；
In addition, for the special low profile photovoltaic device package that can not use parallel seam sealing machine seam weld, this optical-fiber laser seam weld
System has contactless advantage, directly can realize the welding of special low profile photovoltaic device package by adjusting laser energy.
Optical fiber laser module has many advantages, such as that electro-optical efficiency is high, small in size, non-maintaining, ensure that optical-fiber laser
The use reliably and with long-term of device seam weld system.
This optical-fiber laser seam weld system can replace Conventional parallel seam welder on the market, welding quality is high, be widely used,
It is save the cost, easy to automate, it is very significant high and new technology innovative product.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
In the accompanying drawings:
Fig. 1 is parallel seam welding operation principle schematic diagram in the prior art；
Fig. 2 is one schematic diagram of embodiment；
Fig. 3 is XY slide unit schematic diagram in Fig. 2；
Fig. 4 is two schematic diagram of embodiment；
Galvanometer operation principle schematic diagram in Fig. 5 Fig. 4；
Fig. 6 is semiconductor laser structure figure；
Fig. 7 is the optical fiber laser structure figure of laser diodes pumping；
Wherein, the above drawings include the following reference numerals:
1.12 be optical fiber laser, and 1.13 be computer, and 1.15 be nitrogen cabinet, and source nitrogen 1.16, pipeline 1.17, first passes
Energy optical cable 1.3, laser welding head 1.1, CCD camera 1.2；
Z axis slide unit 1.4, Z axis motor 1.5, workpiece 1.6, work stage 1.19, X-axis slide unit 1.7, Y-axis slide unit 1.9, X-axis are sliding
Platform motor 1.8, Y-axis slide unit motor 1.10；Argon gas source 1.14, transfer tube 1.11, electromagnetic gas valve 1.18；
Microscope group 2.2, X scanning galvanometer 2.4 are collimated, Y scan galvanometer 2.5 focuses microscope group 2.7, X scanning galvanometer motor 2.3, Y
Scanning galvanometer motor 2.6；
Semiconductor laser 3.1, bundling device 3.2, the second energy transfer optical cable 3.3；
Laser diodes 4.1, bundling device 4.2, high reflective grid 4.3, low reflective grid 4.5, gain fibre 4.4, packet
Layer optical power stripper 4.6, third energy transfer optical cable 4.7.
Specific embodiment
Come that the present invention will be described in detail below in conjunction with attached drawing and specific embodiment, illustrative examples therein and says
It is bright to be only used to explain the present invention, but it is not intended as inappropriate limitation of the present invention.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of optical-fiber laser seam weld system, including the work stage where laser and seam weld workpiece, the laser passes through
Energy transfer optical cable is connect with laser welding head, one of the laser beam that the laser welding head is emitted and the work stage
It is static, another movement；Moving component between the laser beam that the laser welding head is issued and the work stage is opposite quiet
Stop part is moved along the weld seam of seam weld workpiece.
By the mutual cooperation campaign of laser and work stage, path of welding is determined according to the trend of weld seam, is changed existing
In technology by the way of electric-resistance seam-welding, new optical fibre optical fibre laser seam weld system is provided, using contactless welding
Realize the welding in gap.
The above laser welding head or the move mode of work stage are it is not limited here；Usually laser welding head
Or the movement of one of work stage can be completed by X, Y, Z three-dimensional slide unit；Or other lifting Sliding Structures, herein not
It limits.
Be not limited in the present invention laser transmitting laser along weld movement or workpiece to be welded along
Weld movement to be welded, both the above mechanism can be come out along the track of weld movement by computer simulation,
It is contemplated that and can be realized by the prior art for those skilled in the art.
For the stability for guaranteeing work: the laser welding head and welding platform are located in gas shield cabinet.It is passed through
Gas it is not limited here, usually selects the gas stablized and be not susceptible to reaction, such as nitrogen.
In addition, position while welding is provided with gas tip, the gas tip in work stage in order to which welding quality is more stable
It is connect by tracheae with argon gas source；Solenoid valve is installed on the tracheae.Argon gas keeps the welding quality of sealing cap more preferable, and
Cooling effect is played to weld seam.The switch of solenoid valve can control manually or by computer, it is not limited here.
In addition to more accurate welding, further includes CCD camera, the CCD camera is mounted on laser welding head herein
On, CCD camera focus is overlapped with plumb joint focus, and the focus of the CCD camera focus and laser welding head is directed at weldering simultaneously
Seam.The accurate focusing and monitoring to path of welding may be implemented in CCD camera, determines the laser spot of laser transmitting.
It is further: to further include the Z axis lead screw assembly perpendicular to work stage, the laser welding head is mounted on Z axis silk
On thick stick component.Z axis lead screw assembly can guarantee the welding focus adjustment of CCD camera and plumb joint；The Z axis lead screw assembly can be used
Other elevating mechanisms substitution, the form of such as cylinder slideway or gear & rack structure, it is not limited here.
It is further: to further include control system, the control system is computer, the laser, work stage, electromagnetism
Valve, CCD camera, Z axis lead screw assembly with calculate mechatronics.Transmitting of the focusing, laser weld energy welded above etc. is protected
The injection etc. of shield gas, which is all adopted, computerizeds control, this control can be replaced using PLC or other controllers.
Further: the laser welding head is static, and the work stage passes through the relatively described laser weldering of mobile platform
The laser beam that connector is emitted is moved along workpiece weld seam.
Workpiece is moved along weld seam relative laser device, since the welding focal length of laser is adjusted by the lead screw assembly of Z axis；
Therefore the movement of workpiece is the XY slide unit for being parallel to work stage, the XY slide unit and calculating mechatronics in this mobile platform.
XY slide unit (two groups of orthogonal lead screw assemblies) includes X slide unit 1.7 and Y-axis slide unit 1.9, X slide unit 1.7 and Y-axis
Slide unit 1.9 is mounted on X slide unit 1.7 using superposition installation, work stage 1.19 is mutually perpendicular to, and with X and Y slide unit (1.7 and 1.9)
It moves and moves.
Computer 1.13 respectively drives X-axis slide unit motor 1.8 makes its corresponding X-axis slide unit 1.7 with Y-axis slide unit 1.10 respectively
It is mobile with Y-axis slide unit 1.9.
Since lead screw assembly is more mature therefore as optimal selection, but XY slide unit can be realized using other structures
Orthogonal movement, it is not limited here.
Further: the laser welding head is mirror-vibrating, and the work stage is static；The mirror-vibrating laser device welding
The laser beam opposite piece weld seam scanning motion that head is emitted.The mirror-vibrating laser device plumb joint is connect with computer.
Using mirror-vibrating plumb joint, structure can be made more to simplify, workpiece is without movement, the maintenance to whole system
It is easier.
Inside this mirror-vibrating laser device plumb joint setting collimation microscope group 2.2, X scanning galvanometer 2.4, Y scan galvanometer 2.5 with
And focus microscope group 2.7.
X scanning galvanometer 2.4 and Y scan galvanometer 2.5 are reflecting mirror；Wherein X scanning galvanometer 2.4 is connected with X scanning galvanometer horse
Up to 2.3；Y scan galvanometer 2.5 is connected with Y scan galvanometer 2.6.X scanning galvanometer motor 2.3 and Y scan Polariscope motor 2.6 respectively with
Computer 1.13 connects.
Computer 1.13 drives X scanning mirror and the rotation of Y scan mirror by control motor 2.3 and 2.6, and laser beam passes through
After collimating the collimation of microscope group 2.2, successively pass through the reflection of X scanning galvanometer 2.4 and Y scan galvanometer 2.5, the laser beam after being reflected
Into microscope group 2.7 is focused, laser beam is concentrated on workpiece 1.6 after line focus；Laser beam is projected and needs seam weld
Place.
The shape of weld seam is not limited to rectangle or square, and the shell of the geometric figure of substantially any plane is ok
Seam weld is completed in the work stage of mirror-vibrating optical fibre optical fibre laser seam weld system, this is also superiorly than Conventional parallel seam welder
Side.
Further: optical fiber laser is the laser conducted using optical fiber as light energy, can be semiconductor laser and
Semiconductor pumped optical fiber laser.
Embodiment one
A kind of optical-fiber laser seam weld system, including the work stage where laser and seam weld workpiece, the laser passes through
Energy transfer optical cable is connect with laser welding head, static (the i.e. laser welding head of the laser beam that the laser welding head is emitted
It is static), the work stage where workpiece is moved with respect to plumb joint along the weld seam of seam weld workpiece.
XY slide unit (two groups of orthogonal lead screw assemblies) includes X slide unit 1.7 and Y-axis slide unit 1.9, X slide unit 1.7 and Y-axis
Slide unit 1.9 is mounted on X slide unit 1.7 using superposition installation, work stage 1.19 is mutually perpendicular to, and with X and Y slide unit (1.7 and 1.9)
It moves and moves.
Computer 1.13 respectively drives X-axis slide unit motor 1.8 makes its corresponding X-axis slide unit 1.7 with Y-axis slide unit 1.10 respectively
It is mobile with Y-axis slide unit 1.9.
Laser is linked into spot welding head 1.1 by the first energy transfer optical cable 1.3 by optical fiber laser 1.12, inside spot welding head
Eyeglass collimation focusing after, laser can focus on the workpiece to seam weld；It the CCD camera and is mounted on spot welding head 1.1,
For adjusting welding focal length and the weld seam imaging of spot welding head 1.1.Spot welding head is mounted on Z axis lead screw assembly.
The spot welding head and welding platform are located in gas shield cabinet, interior in gas shield cabinet to connect with source nitrogen, make gas
Nitrogen is full of in body protection cabinets.The gas being passed through in the gas shield cabinet is nitrogen or argon gas；Pass through transfer tube and gas source
Connection, is provided with solenoid valve on transfer tube.
Further include control system, the control system be computer, the laser, work stage, solenoid valve, CCD camera,
Z axis lead screw assembly, XY slide unit with calculate mechatronics.
The course of work of this system is as follows:
Firstly, it is necessary to which the workpiece 1.6 of seam weld is fixed in work stage 1.19, nitrogen, optical fiber are full of in gas shield cabinet
Laser is linked into spot welding head 1.1 by the first energy transfer optical cable 1.3 by laser 1.12, is collimated by the eyeglass inside spot welding head poly-
Defocused, laser can focus on the workpiece to seam weld；
Secondly, with guiding instruction light observation, it is best poly- to find to adjust the Z axis slide unit 1.4 of spot welding head by CCD camera
Focus；The linear movement of the control Z axis slide unit 1.4 of Z axis motor 1.5；
Third by adjusting X-axis slide unit motor 1.8 and Y-axis slide unit motor 1.10, and then adjusts X-axis slide unit 1.7 and Y-axis
Slide unit 1.9 is mobile；Determine welding position；
In optical-fiber laser seam weld operating process, computer sets spot welding grease head highness, X and Y-axis according to the size of workpiece
Position, X and the Y-axis speed of service, while optical fiber laser sets pulse width, energy, frequency and duty ratio, program instruction hair
Optical fiber laser and X and Y-axis sliding translation platform are worked at the same time after out, and by workpiece 1.6, effectively seam weld is got up.By feeding, go out
The design for expecting mechanical hand, the automation of shell workpiece seam weld is easily achieved using optical fibre optical fibre laser seam weld system, this is also
The second largest advantage of optical fibre optical fibre laser seam weld system beyond tradition parallel seam sealing machine.
By a series of programming operations of computer program, optical-fiber laser can be needed shell workpiece by technique requirement
The gap of seam weld completely welds.It is not limited to rectangle or square, the shell of the geometric figure of substantially any plane
Seam weld can be completed on the platform of optical fibre optical fibre laser seam weld system, this is also superiorly than Conventional parallel seam welder
Side.
Semiconductor laser closes Shu Ercheng by more semiconductor laser diodes, and the laser after closing beam is defeated by energy transfer optical cable
Out.Specific structure such as Fig. 6,3.1 output optical fibre of multiple semiconductor laser devices with 3.2 input optical fibre welding of bundling device, close beam respectively
3.3 welding of 3.2 output optical fibre of device and the second energy transfer optical cable, the laser for being issued semiconductor laser by bundling device are closed to one
In optical fiber, the laser energy that is superimposed.
Wherein, the laser of semiconductor laser is exported by fiber coupling, the output optical fibre and conjunction beam of semiconductor laser
Device input optical fibre is identical.The number of semiconductor laser diode is no less than 1, and is not more than bundling device input optical fibre number.It closes
Beam device output optical fibre is identical as fiber output head optical fiber.
Embodiment two
A kind of optical-fiber laser seam weld system, including the work stage where laser and seam weld workpiece, the laser passes through
Energy transfer optical cable is connect with laser welding head, and the laser welding head uses mirror-vibrating laser device plumb joint, the work stage
It is static；The laser beam opposite piece weld seam scanning motion that the mirror-vibrating laser device plumb joint is emitted.
Laser is linked into plumb joint 1.1 by the first energy transfer optical cable 1.3 by optical fiber laser, by the mirror inside plumb joint
After piece collimation focusing, laser can be focused on the workpiece to seam weld；It the CCD camera and is mounted on spot welding head 1.1, is used for
Adjust welding focal length and the weld seam imaging of spot welding head 1.1.Spot welding head is mounted on Z axis lead screw assembly.
Setting collimation microscope group 2.2, scanning galvanometer 2.4 and 2.5 and focusing microscope group 2.7, laser inside mirror-vibrating plumb joint
It is successively reflecting mirror by X scanning galvanometer 2.4 and Y scan galvanometer 2.5 after collimation microscope group 2.2 collimates；Wherein X scanning vibration
Mirror 2.4 is connected with X scanning galvanometer motor 2.3；Y scan galvanometer 2.5 is connected with Y scan Polariscope motor 2.6.X scanning galvanometer motor
2.3 and Y scan Polariscope motor 2.6 connect respectively with computer 1.13.
Computer 1.13 drives X and the rotation of Y scan mirror by control motor 2.3 and 2.6, and laser beam is successively swept by X
The reflection for retouching galvanometer 2.4 and Y scan galvanometer 2.5, the laser beam after being reflected, which enters, focuses microscope group 2.7, laser after line focus
Light beam concentrates on workpiece 1.6；Laser beam is projected to the place for needing seam weld.
The shape of weld seam is not limited to rectangle or square, and the shell of the geometric figure of substantially any plane is ok
Seam weld is completed in the work stage of mirror-vibrating optical fibre optical fibre laser seam weld system, this is also superiorly than Conventional parallel seam welder
Side.
The spot welding head and welding platform are located in gas shield cabinet, interior in gas shield cabinet to connect with source nitrogen, make gas
Nitrogen is full of in body protection cabinets.The gas being passed through in the gas shield cabinet is nitrogen or argon gas；Pass through transfer tube and gas source
Connection, is provided with solenoid valve on transfer tube.
Further include control system, the control system be computer, the laser, work stage, solenoid valve, CCD camera,
Z axis lead screw assembly with calculate mechatronics.
The course of work of this system is as follows:
Firstly, it is necessary to which the workpiece 1.6 of seam weld is fixed in work stage 1.19, nitrogen, optical fiber are full of in gas shield cabinet
Laser is linked into spot welding head 1.1 by the first energy transfer optical cable 1.3 by laser 1.12, is collimated by the eyeglass inside spot welding head poly-
Defocused, laser can focus on the workpiece to seam weld；
Secondly, observing focus by CCD camera with guiding instruction light, adjusting the Z axis slide unit 1.4 of spot welding head to find most
Good focus point；The linear movement of the control Z axis slide unit 1.4 of Z axis motor 1.5；
4th, by adjusting X scanning galvanometer motor 2.3 and Y scan Polariscope motor 2.6, laser beam successively passes through X scanning
Galvanometer 2.4 and Y scan galvanometer 2.5, the laser beam after being reflected, which enters, focuses microscope group 2.7, and laser beam is concentrated after line focus
The reflection path that laser beam is determined on workpiece 1.6, determines welding position；
Computer 1.13 passes through the motor 2.3 and 2.6 in software control galvanometer, and then control X scanning galvanometer 2.4 and Y are swept
Galvanometer 2.5 is retouched, scans the laser beam reflected on X and Y scan galvanometer on workpiece.Pass through a series of of computer program
Shell workpiece can be needed the gap of seam weld completely to weld by programming operation, optical-fiber laser by technique requirement.It is unlimited
It can be in mirror-vibrating optical fibre optical fibre laser seam weld in the shell of rectangle or square, the geometric figure of substantially any plane
Seam weld is completed in the work stage of system, this is also place more superior than Conventional parallel seam welder.
In addition, the optical fiber laser structure of laser diodes pumping is as shown in fig. 7, include semiconductor laser second level
Pipe 4.1, bundling device 4.2, high reflective grid 4.3, low reflective grid 4.5, gain fibre 4.4, covering optical power stripper 4.6 and third
Energy transfer optical cable 4.7.Laser Power Devices, which act on semiconductor laser diode 4.1, makes it issue pump light, each semiconductor laser
The light that diode issues closes the pump light into an optical fiber, after closing beam via bundling device 4.2 and enters by high reflective grid 4.3, low anti-
In the resonant cavity that grating 4.5 and gain fibre 4.4 are formed.In optical resonator, the rare earth material of gain fibre fibre core doping
It absorbs pump light and forms population inversion, the particle after reversion forms laser, laser warp under the effect of stimulated radiation resonant cavity
It crosses cladding light stripper 4.6 and third energy transfer optical cable 4.7 exports.Cladding light stripper in resonant cavity for will not be completely absorbed
Pump light strip out optical fiber, reduce interference of the pump light to light quality out.
Semiconductor laser diode band tail optical fiber, pump light are exported from tail optical fiber, the tail optical fiber of semiconductor laser diode and pumping
The input optical fibre of bundling device is identical；Pump combiner has more input optical fibres, pump laser diode number in optical fiber laser
Less than pump combiner input optical fibre number；Pump combiner output optical fibre, high anti-grating fibers, low anti-grating fibers and covering
Light stripper optical fiber is identical；The optical fiber of fiber output head is multimode fibre, and output multimode laser is convenient for laser welding.It is high reflective
Grid are greater than 99% to the reflectivity of produced laser, and low reflective grid are 10% to the reflectivity of produced laser.
Compared to more traditional electric resistance welding parallel seam sealing machine, optical-fiber laser seam welder is small in size, and all optical fibre structure is non-maintaining, behaviour
Make simply, encapsulation miniature device is not in spark phenomenon, and automated production may be implemented, and is improved while reducing production cost
Efficiency.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of optical-fiber laser seam weld system, it is characterised in that: described to swash including the work stage where laser and seam weld workpiece
Light device is connect by energy transfer optical cable with laser welding head, the laser beam that the laser welding head is emitted and the work stage
One of them static, another movement；Movement portion between the laser beam that the laser welding head is issued and the work stage
The opposing stationary component of part is moved along the weld seam of seam weld workpiece.
2. optical-fiber laser seam weld system according to claim 1, it is characterised in that: the laser welding head and welding are flat
Platform is located in gas shield cabinet；The gas being passed through in the gas shield cabinet is that nitrogen is connect by transfer tube with gas source.
3. optical-fiber laser seam weld system according to claim 1, it is characterised in that: position while welding is provided in work stage
Gas tip, the gas tip are connect by tracheae with argon gas source；Solenoid valve is installed on the tracheae.
4. optical-fiber laser seam weld system described in any one according to claim 1-3, it is characterised in that: further include CCD phase
Machine, the CCD camera are mounted on laser welding head, and the focus of the CCD camera is overlapped with the focus of laser welding head,
Its coincidence point is directed at weld seam.
5. optical-fiber laser seam weld system according to claim 4, it is characterised in that: further include the Z axis perpendicular to work stage
Lead screw assembly, the laser welding head are mounted on Z axis lead screw assembly.
6. optical-fiber laser seam weld system according to claim 5, it is characterised in that: it further include control system, the control
System is computer, the laser, work stage, solenoid valve, CCD camera, Z axis lead screw assembly with calculate mechatronics.
7. optical-fiber laser seam weld system according to claim 6, it is characterised in that: the laser welding head is static, institute
It states work stage and is moved by the relatively described plumb joint of mobile platform along workpiece weld seam.
8. optical-fiber laser seam weld system according to claim 7, it is characterised in that: the mobile platform is to be parallel to workpiece
The XY slide unit of platform, the XY slide unit and calculating mechatronics.
9. optical-fiber laser seam weld system according to claim 5, it is characterised in that: the laser welding head is galvanometer
Formula, the work stage are static；The laser beam opposite piece weld seam scanning motion that the mirror-vibrating laser device plumb joint is emitted.
10. optical-fiber laser seam weld system according to claim 9, it is characterised in that: the mirror-vibrating laser device plumb joint
It is connect with computer.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775549A (en) * | 2021-02-01 | 2021-05-11 | 山东鹰联光电科技股份有限公司 | Laser welding device and welding method thereof |
| CN112935542A (en) * | 2021-02-02 | 2021-06-11 | 大族激光科技产业集团股份有限公司 | Laser welding device |
| CN113707976A (en) * | 2021-07-14 | 2021-11-26 | 武汉逸飞激光股份有限公司 | Battery cover-closing pre-spot welding method |
| CN114888438A (en) * | 2022-06-17 | 2022-08-12 | 长春理工大学 | Automatic change welding bridging fibril equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905378A (en) * | 2010-08-19 | 2010-12-08 | 上海市激光技术研究所 | Fiber laser metal sheet welding device |
| CN103521920A (en) * | 2013-10-16 | 2014-01-22 | 江苏大学 | Laser processing device and method without blowing auxiliary gas |
| CN105397290A (en) * | 2015-12-14 | 2016-03-16 | 中国电子科技集团公司第四十八研究所 | Laser sealing welding machine for welding workpieces in batches and control method |
| US20160221118A1 (en) * | 2013-09-02 | 2016-08-04 | Mitsubishi Heavy Industries, Ltd. | Combined machining apparatus and combined machining method |
| CN206898588U (en) * | 2017-05-05 | 2018-01-19 | 武汉华俄激光工程有限公司 | The axle gantry laser-beam welding machine of laser vision weld joint tracking three |
| CN207223194U (en) * | 2017-09-29 | 2018-04-13 | 苏州天奇安激光设备有限公司 | Precise laser automatic soldering device |
| CN207289180U (en) * | 2017-09-11 | 2018-05-01 | 武汉华工激光工程有限责任公司 | A kind of equipment of laser welding mobile phone camera |
| CN107971632A (en) * | 2016-10-21 | 2018-05-01 | 核工业西南物理研究院 | A kind of method for laser welding for eliminating the back side and splashing |
| CN207343964U (en) * | 2017-10-09 | 2018-05-11 | 佛山市南海区佳阳金属制品有限公司 | A kind of cream jug processing laser soldering device |
| CN209407704U (en) * | 2018-11-26 | 2019-09-20 | 无锡源清瑞光激光科技有限公司 | A kind of optical-fiber laser seam weld system |
-
2018
- 2018-11-26 CN CN201811417202.0A patent/CN109290690A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905378A (en) * | 2010-08-19 | 2010-12-08 | 上海市激光技术研究所 | Fiber laser metal sheet welding device |
| US20160221118A1 (en) * | 2013-09-02 | 2016-08-04 | Mitsubishi Heavy Industries, Ltd. | Combined machining apparatus and combined machining method |
| CN103521920A (en) * | 2013-10-16 | 2014-01-22 | 江苏大学 | Laser processing device and method without blowing auxiliary gas |
| CN105397290A (en) * | 2015-12-14 | 2016-03-16 | 中国电子科技集团公司第四十八研究所 | Laser sealing welding machine for welding workpieces in batches and control method |
| CN107971632A (en) * | 2016-10-21 | 2018-05-01 | 核工业西南物理研究院 | A kind of method for laser welding for eliminating the back side and splashing |
| CN206898588U (en) * | 2017-05-05 | 2018-01-19 | 武汉华俄激光工程有限公司 | The axle gantry laser-beam welding machine of laser vision weld joint tracking three |
| CN207289180U (en) * | 2017-09-11 | 2018-05-01 | 武汉华工激光工程有限责任公司 | A kind of equipment of laser welding mobile phone camera |
| CN207223194U (en) * | 2017-09-29 | 2018-04-13 | 苏州天奇安激光设备有限公司 | Precise laser automatic soldering device |
| CN207343964U (en) * | 2017-10-09 | 2018-05-11 | 佛山市南海区佳阳金属制品有限公司 | A kind of cream jug processing laser soldering device |
| CN209407704U (en) * | 2018-11-26 | 2019-09-20 | 无锡源清瑞光激光科技有限公司 | A kind of optical-fiber laser seam weld system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775549A (en) * | 2021-02-01 | 2021-05-11 | 山东鹰联光电科技股份有限公司 | Laser welding device and welding method thereof |
| CN112935542A (en) * | 2021-02-02 | 2021-06-11 | 大族激光科技产业集团股份有限公司 | Laser welding device |
| CN113707976A (en) * | 2021-07-14 | 2021-11-26 | 武汉逸飞激光股份有限公司 | Battery cover-closing pre-spot welding method |
| CN113707976B (en) * | 2021-07-14 | 2023-11-10 | 武汉逸飞激光股份有限公司 | Pre-spot welding method for battery cover closing |
| CN114888438A (en) * | 2022-06-17 | 2022-08-12 | 长春理工大学 | Automatic change welding bridging fibril equipment |
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