CN106862766A - A kind of galvanized sheet laser welding apparatus and its technique - Google Patents
A kind of galvanized sheet laser welding apparatus and its technique Download PDFInfo
- Publication number
- CN106862766A CN106862766A CN201710265389.6A CN201710265389A CN106862766A CN 106862766 A CN106862766 A CN 106862766A CN 201710265389 A CN201710265389 A CN 201710265389A CN 106862766 A CN106862766 A CN 106862766A
- Authority
- CN
- China
- Prior art keywords
- galvanized sheet
- welding
- metal tube
- laser welding
- protection
- 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.)
- Pending
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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
- B23K26/20—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
- 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
- B23K26/70—Auxiliary operations or 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
- 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
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention proposes a kind of galvanized sheet laser welding apparatus and its technique; welding equipment includes chuck body and protective substrate; on protective substrate protection air drain is provided with correspondence welding position; backside gas metal tube is provided with protection air drain; passage is distributed with backside gas metal tube, the two ends of backside gas metal tube are connected with protection gas all the time；Chuck body includes two groups of upset clamping arms and cylinder; cylinder is fixed on the bottom of protective substrate; upset clamping arm includes the gripping section and linkage section that are wholely set; the free end clamping galvanized sheet of gripping section; the free end of linkage section is hinged with the cylinder axis on cylinder, and cylinder axis drive correspondence upset clamping arm to do relative motion respectively.The laser welding apparatus and technique that the present invention is provided can be good according to the size of workpiece, thickness alignment jig clip position, welding back protectiveness, can improve splashing, surface pores and the internal porosity of zinc-plated plate surface, improve the aesthetics of weld strength and weldment.
Description
Technical field
The present invention relates to laser welding technology field, more particularly to a kind of galvanized sheet laser welding apparatus and its technique.
Background technology
The principle of laser welding is made up of optics oscillator and the medium being placed between the end mirror of oscillator hole two.Medium
Excited during to higher-energy state, start to produce same-phase light wave and the roundtrip between two end mirrors, formed the string knot of photoelectricity
Effect, light wave is amplified, and is obtained enough energy and started to launch laser.
Influence of the zinc coat in welding to weld seam can be significantly reduced using laser welding galvanized sheet, hence it is evident that lifting weld seam
Performance, but in prior art, due to the influence of zinc coat, the welding of galvanized sheet implements all relatively difficult.Galvanized sheet
Material is welded, and its traditional processing mode has single-sided process, knot for being generally electric resistance welding, and the weldering of LASER BEAM WELDING relative resistance
The increase of structure intensity, electrodeless wear phenomenon, welding quality stable, noncontact procession, flexibility, speed of welding are fast, welding deformation
Small the features such as, receives more and more extensive concern.But due to the influence of zinc coat, it is also easy to produce in galvanized sheet laser lap spot welding
The weld defect such as splash, do not burn-on, and has a strong impact on welding quality and its stability.
Because Zn-ef ficiency boiling point (907 DEG C) is too low relative to the fusing point (1538 DEG C) of ferro element, and laser beam welding pole
Its rapid (Millisecond), cause the fusing of the evaporation of Zn-ef ficiency and ferro element almost synchronously occur, within the extremely short time, two
Evaporation forms zinc fume and drastically expands zinc coat between layer galvanized sheet rapidly, by the liquid metal spray in upper plate welding pool
Project molten bath and formed and splash, and solder joint due to lose it is metal filled cause to weld effective bonded area and reduce, cause to be formed
The solder joint of firm stable.
Analyzed from welding process, the wild effect of galvanized sheet laser lap spot welding is caused by three below reason：
1. Zn-ef ficiency is excessive with the difference of the molten boiling point of ferro element；2. laser beam welding is swiftness；3. the zinc between two-layer galvanized sheet
Layer is in welding in the space of approximate closing.
The content of the invention
Based on above mentioned problem, present invention aim at a kind of laser welding process of galvanized sheet is provided, not only can according to plus
The size of workpiece, thickness alignment jig clip position, fixture is flexible strong, and welding back welding protection is good, can improve zinc-plated
The splashing of plate surface, surface pores and internal porosity, improve the aesthetics of weld strength and weldment.
For problem above, there is provided following technical scheme：A kind of galvanized sheet laser welding apparatus, including fix two pieces of platings
The chuck body of zine plate and the protective substrate for placing galvanized sheet, it is characterised in that：Two pieces of platings of correspondence on the protective substrate
Zine plate welding position is provided with protection air drain at lower section, and backside gas metal tube, the backside gas are provided with the protection air drain
Passage is distributed with metal tube, the two ends of the backside gas metal tube are connected with protection gas all the time in welding process；Institute
Stating chuck body includes two groups of upset clamping arms and cylinder being oppositely arranged, and the cylinder is fixed on the bottom of protective substrate,
The upset clamping arm includes the gripping section and linkage section that are wholely set, the free end clamping galvanized sheet of the gripping section, institute
The free end and the cylinder axis on cylinder for stating linkage section are hinged, and cylinder axis drive correspondence upset clamping arm to do relatively respectively
Motion.
The present invention is further arranged to：Protection board is additionally provided between the gripping section and galvanized sheet.
The present invention is further arranged to：It is provided with the top of two pieces of galvanized sheet welding positions with laser device laser welding movement
Side air metal tube, protection gas is connected with the side air metal tube.
The present invention is further arranged to：The protection gas is argon gas.
The present invention is further arranged to：The backside gas metal tube and side air metal tube are copper pipe.
A kind of galvanized sheet laser welding process, it uses galvanized sheet laser welding apparatus described above, it is characterised in that：
Comprise the following steps：
(1) galvanized sheet for taking two pieces of needs welding carries out surface cleaning, on alignment jig body between two groups of upset clamping arms
Distance, two pieces of galvanized sheets are placed on protective substrate, adjustment two pieces of zinc-plated Board positions and preset clearance between the two make
Weld is corresponding with the protection air drain on protective substrate, pad, places after protection board with the clamping in chuck body
Section is gripped；(2) argon gas will be passed through in the two ends of backside gas metal tube and side air metal tube until welding
Journey terminates；
(3) program of the movement locus needed in welding process is write in welding robot；
(4) welding robot performs welding procedure jointly with laser, carries out laser welding.
Beneficial effects of the present invention：Invention provide a kind of laser welding apparatus being applied between two pieces of galvanized sheets and its
Technique, exactly because why laser spot welding produces zinc coat of the wild effect between two-layer galvanized sheet in welding process to steam
Cannot in time be discharged after hair and caused.The laser welding apparatus that the technical program is provided are using two pieces of platings of correspondence on protective substrate
Protection air drain is provided with the position of zine plate welding, the backside gas metal tube that passage is distributed with, back are set in protection air drain
Protection gas, this welding structure backside gas in welding process are inwardly filled in gas metal pipe two ends all the time in welding process
The stable state of ventilation is constantly in metal tube, so that zinc fume can be discharged in time during welding, from
And the stabilization welded is realized, improve weld strength.The laser welding process that the technical program is provided is by will be to be welded zinc-plated
Certain interval is reserved between plate, the zinc fume in welding process can be made to be excluded from the reserved gap, galvanized sheet welding position
All the time back protective gas and sidepiece protective gas are connected with, so as to can overcome because easy when welding condition stainless steel is with kirsite
Splash, cause the effective bonded area of solder joint to reduce, intensity declines, and whole welding process and intensity are unstable asks
Topic.Additionally, the size that can realize according to workpiece using chuck body in the technical program, thickness alignment jig clip position,
And fixture is flexible strong, good clamping effect improves the stability in welding process.
Brief description of the drawings
Fig. 1 is the structural representation of galvanized sheet laser welding apparatus in the embodiment of the present invention.
Illustrate in figure：1- galvanized sheets；2- protective substrates；21- protects air drain；22 backside gas metal tubes；3- chuck bodies；
31- overturns clamping arm；311- gripping sections；312- linkage sections；32- cylinders；321- cylinder axis；4- pads；5- protection boards；
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail.Hereinafter implement
Example is not limited to the scope of the present invention for illustrating the present invention.
As shown in figure 1, a kind of galvanized sheet laser welding apparatus, including fix two pieces of chuck bodies of galvanized sheet 13 and be used for
The protective substrate 2 of galvanized sheet 1 is placed, protection gas is provided with the lower section of two pieces of welding positions of galvanized sheet 1 of correspondence on the protective substrate 2
Groove 21, backside gas metal tube 22 is provided with the protection air drain 21, and passage is distributed with the backside gas metal tube 22,
The two ends of the backside gas metal tube 22 are connected with protection gas all the time in welding process；The chuck body 3 includes two groups
The upset clamping arm 31 and cylinder 32 being oppositely arranged, the cylinder 32 are fixed on the bottom of protective substrate 2, the upset clamping
Arm 31 includes the gripping section 311 and linkage section 312 that are wholely set, the free end clamping galvanized sheet 1 of the gripping section 311, institute
The free end and the cylinder axis 321 on cylinder 32 for stating linkage section 312 are hinged, and cylinder axis 321 drive correspondence upset folder respectively
Arm 31 is held to do relative motion.
Above-mentioned laser welding apparatus are provided with protection gas using on protective substrate 2 at the positions of corresponding two pieces of galvanized sheets 1 welding
Groove 21, sets the backside gas metal tube 22 that passage is distributed with protection air drain 21, the two ends of backside gas metal tube 22 are in weldering
All the time protection gas is inwardly filled in termination process, this welding structure is constantly in welding process in backside gas metal tube 22
The stable state of ventilation, so that zinc fume can be discharged in time during welding, so that the stabilization of welding is realized,
Improve weld strength；Upset clamping arm 31 in above-mentioned technical proposal in two groups of chuck bodies 3 can be in the presence of cylinder 32
It is relative or move towards, the different size or thickness according to workpiece are realized, suitably adjust clip position, effective clamping workpiece
The purpose of welding process is completed, while chuck body is flexible strong, good clamping effect improves the stability in welding process.
Further, protection board 5, the protection galvanized sheet 1 of protection board 5 surface are additionally provided between the gripping section 311 and galvanized sheet 1
Prevent clamped section 311 from destroying, further improve the welding stability between chuck body 3 and galvanized sheet 1.Two pieces of galvanized sheets 1
It is provided with the top of welding position with the mobile side air metal tube (not shown) of laser device laser welding, the side air gold
Protection gas is connected with category pipe.Side air metal tube realizes the gas shield on welding position top, coordinates the back of the body of welding position
Portion's gas shield, strengthens the weld strength and appearance looks elegant degree of welding position.Further, the protection gas is argon gas.It is described
Backside gas metal tube 22 and side air metal tube are copper pipe.
A kind of galvanized sheet laser welding process, it uses galvanized sheet laser welding apparatus described above, including following step
Suddenly：(1) taking two pieces needs the galvanized sheet 1 of welding to carry out surface cleaning, on alignment jig body 3 two groups of upset clamping arms 31 it
Between distance, two pieces of galvanized sheets 1 are placed on protective substrate 2, between two pieces of positions of galvanized sheet 1 of adjustment and between the two reserved
Gap makes weld corresponding with the protection air drain 21 on protective substrate 2, pad 4, place protection board 5 after use chuck body
Gripping section 311 on 3 is gripped；
(2) argon gas will be passed through in the two ends of backside gas metal tube 22 and side air metal tube until welding process knot
Beam；
(3) program of the movement locus needed in welding process is write in welding robot；
(4) welding robot performs welding procedure jointly with laser, carries out laser welding.
On the one hand by the way that certain interval will be reserved between galvanized sheet 1 to be welded in above-mentioned laser welding process, so that can
The zinc fume in welding process is set to be excluded from the reserved gap, so as to can overcome because welding condition stainless steel and zinc are closed
Jin Shiyi splashes, and causes the effective bonded area of solder joint to reduce, and intensity declines, and entirely welding process and intensity are unstable
Problem；On the other hand side air protection and backside gas protection dual gas protection, above-mentioned side air protection are employed
Realized by welding mobile side air metal tube with laser device laser, side air metal tube can be fixed on welding robot
Moved on arm, side air protection can be such that the zinc fume of the top of galvanized sheet 1 generation in welding process discharges in time, it is ensured that
Welding aesthetics and weld strength above the weld part of galvanized sheet 1；The protection of above-mentioned backside gas on protective substrate 2 using protecting gas
Backside gas metal tube 22 in groove 21, is distributed with passage, the two ends of backside gas metal tube 22 on backside gas metal tube 22
Protection gas is inwardly filled until welding process terminates, and this welding structure is constantly in ventilation in welding process Center Vent tube
Stable state, so that zinc fume can be discharged in time during welding, so as to realize the stabilization of welding, improves weldering
Connect intensity.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvement and modification can also be made, above-mentioned hypothesis these
Improve and modification also should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of galvanized sheet laser welding apparatus, including fix the chuck body of two pieces of galvanized sheets and the guarantor for placing galvanized sheet
Shield substrate, it is characterised in that：Protection air drain is provided with the lower section of two pieces of galvanized sheet welding positions of correspondence on the protective substrate, it is described
Backside gas metal tube is provided with protection air drain, passage, the backside gas gold are distributed with the backside gas metal tube
The two ends for belonging to pipe are connected with protection gas all the time in welding process；The chuck body includes two groups of upset clampings being oppositely arranged
Arm and cylinder, the cylinder are fixed on the bottom of protective substrate, and the upset clamping arm includes the gripping section being wholely set
And linkage section, the free end clamping galvanized sheet of the gripping section, the free end of the linkage section is mutual with the cylinder axis on cylinder
It is hinged, cylinder axis drive correspondence upset clamping arm to do relative motion respectively.
2. a kind of galvanized sheet laser welding apparatus according to claim 1, it is characterised in that：The gripping section and galvanized sheet
Between be additionally provided with protection board.
3. a kind of galvanized sheet laser welding apparatus according to claim 1 and 2, it is characterised in that：Two pieces of zinc-plated plate welds
It is provided with the top of position with the mobile side air metal tube of laser device laser welding, guarantor is connected with the side air metal tube
Shield gas.
4. a kind of galvanized sheet laser welding apparatus according to claim 3, it is characterised in that：The protection gas is argon gas.
5. a kind of galvanized sheet laser welding apparatus according to claim 3, it is characterised in that：The backside gas metal tube
Copper pipe is with side air metal tube.
6. a kind of galvanized sheet laser welding process, it uses the galvanized sheet laser welding apparatus described in above-mentioned any one of 1-5, and it is special
Levy and be：Comprise the following steps：
(1) galvanized sheet for taking two pieces of needs welding carries out surface cleaning, on alignment jig body between two groups of upset clamping arms
Distance, two pieces of galvanized sheets are placed on protective substrate, adjustment two pieces of zinc-plated Board positions and preset clearance between the two make
Weld is corresponding with the protection air drain on protective substrate, pad, places after protection board with the clamping in chuck body
Section is gripped；
(2) argon gas will be passed through in the two ends of backside gas metal tube and side air metal tube until welding process terminates；
(3) program of the movement locus needed in welding process is write in welding robot；
(4) welding robot performs welding procedure jointly with laser, carries out laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265389.6A CN106862766A (en) | 2017-04-21 | 2017-04-21 | A kind of galvanized sheet laser welding apparatus and its technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265389.6A CN106862766A (en) | 2017-04-21 | 2017-04-21 | A kind of galvanized sheet laser welding apparatus and its technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106862766A true CN106862766A (en) | 2017-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265389.6A Pending CN106862766A (en) | 2017-04-21 | 2017-04-21 | A kind of galvanized sheet laser welding apparatus and its technique |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414355A (en) * | 2017-08-03 | 2017-12-01 | 合肥市华林模具有限公司 | A kind of argoshield back of the body protection device for high temperature alloy welding |
| CN110732760A (en) * | 2019-11-18 | 2020-01-31 | 中国航发贵州黎阳航空动力有限公司 | kinds of panel part positioning welding anchor clamps |
| CN110815334A (en) * | 2019-11-07 | 2020-02-21 | 福州德寰流体技术有限公司 | Inside lining flaring cutting device of equipment is suppressed to gate valve |
| CN111959915A (en) * | 2020-09-01 | 2020-11-20 | 日照兴业汽车配件股份有限公司 | Longitudinal beam placing tool |
| CN112849918A (en) * | 2020-12-24 | 2021-05-28 | 山东大学 | Continuous flexible gradual shaping clamping and conveying device for plates |
| CN114226974A (en) * | 2021-12-29 | 2022-03-25 | 苏州迅镭激光科技有限公司 | Laser penetration welding galvanized sheet equipment and welding method |
| CN115070210A (en) * | 2022-08-02 | 2022-09-20 | 南京航空航天大学 | Magnetic field auxiliary laser welding platform based on magnetic field form simulation design |
| CN115255743A (en) * | 2022-09-26 | 2022-11-01 | 中国船舶重工集团国际工程有限公司 | Welding platform for thin steel plate welding and using method thereof |
| CN117943768A (en) * | 2024-03-27 | 2024-04-30 | 麒麟(山东)智能设备制造有限公司 | Page-turning type welding workstation and method |
| CN118268774A (en) * | 2024-06-03 | 2024-07-02 | 悠奥智能科技(海安)有限公司 | Production welding device for hanging rod for display cabinet |
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| US5539180A (en) * | 1991-02-28 | 1996-07-23 | Fanuc, Ltd. | Method of laser beam welding galvanized steel sheets with an auxiliary gas containing oxygen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414355A (en) * | 2017-08-03 | 2017-12-01 | 合肥市华林模具有限公司 | A kind of argoshield back of the body protection device for high temperature alloy welding |
| CN110815334A (en) * | 2019-11-07 | 2020-02-21 | 福州德寰流体技术有限公司 | Inside lining flaring cutting device of equipment is suppressed to gate valve |
| CN110815334B (en) * | 2019-11-07 | 2021-03-23 | 福州德寰流体技术有限公司 | Inside lining flaring cutting device of equipment is suppressed to gate valve |
| CN110732760A (en) * | 2019-11-18 | 2020-01-31 | 中国航发贵州黎阳航空动力有限公司 | kinds of panel part positioning welding anchor clamps |
| CN111959915A (en) * | 2020-09-01 | 2020-11-20 | 日照兴业汽车配件股份有限公司 | Longitudinal beam placing tool |
| CN112849918A (en) * | 2020-12-24 | 2021-05-28 | 山东大学 | Continuous flexible gradual shaping clamping and conveying device for plates |
| CN114226974A (en) * | 2021-12-29 | 2022-03-25 | 苏州迅镭激光科技有限公司 | Laser penetration welding galvanized sheet equipment and welding method |
| CN115070210A (en) * | 2022-08-02 | 2022-09-20 | 南京航空航天大学 | Magnetic field auxiliary laser welding platform based on magnetic field form simulation design |
| CN115255743A (en) * | 2022-09-26 | 2022-11-01 | 中国船舶重工集团国际工程有限公司 | Welding platform for thin steel plate welding and using method thereof |
| CN115255743B (en) * | 2022-09-26 | 2022-12-27 | 中国船舶重工集团国际工程有限公司 | Welding platform for thin steel plate welding and using method thereof |
| CN117943768A (en) * | 2024-03-27 | 2024-04-30 | 麒麟(山东)智能设备制造有限公司 | Page-turning type welding workstation and method |
| CN118268774A (en) * | 2024-06-03 | 2024-07-02 | 悠奥智能科技(海安)有限公司 | Production welding device for hanging rod for display cabinet |
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Application publication date: 20170620 |