CN102240852A - Laser stitch welding device for galvanized plate - Google Patents
Laser stitch welding device for galvanized plate Download PDFInfo
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- CN102240852A CN102240852A CN2011101317918A CN201110131791A CN102240852A CN 102240852 A CN102240852 A CN 102240852A CN 2011101317918 A CN2011101317918 A CN 2011101317918A CN 201110131791 A CN201110131791 A CN 201110131791A CN 102240852 A CN102240852 A CN 102240852A
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Abstract
The invention relates to a laser stitch welding device for a galvanized plate. The laser stitch welding device comprises a galvanized upper plate and a galvanized lower plate which are stacked parallel to each other; the upper surface of the upper layer of a first zinc film is provided with an upper clamping wheel; the lower surface of the lower layer of a second zinc film is provided with a lower clamping wheel; the connection line of the circle center of a left end face of the upper clamping wheel and the circle center of the left end face of the lower clamping wheel is vertical to the galvanized upper plate; a laser welding joint nozzle, the upper clamping wheel and the lower clamping wheel synchronously move in the same direction; the axial line of the laser welding joint nozzle is vertical to the galvanized upper plate; the axial line of the laser welding joint nozzle is positioned on the plane where the axial line of an upper clamping wheel shaft and a lower clamping wheel shaft are; and the focal point of the laser sent by the laser welding joint nozzle is positioned on the surface of a zinc film layer of the side adjacent to the laser welding joint nozzle. The consistency of the interlayer gap of the whole welding process is achieved by the same upper and down clamping wheel mechanisms, the zinc gas has a stable discharge passage and the welding process is stable, and the welding quality and intensity are obviously improved.
Description
Technical field
The present invention relates to the automobile body-in-white field of laser processing, especially a kind of galvanized sheet laser stitch welding device.
Background technology
In automobile industry, " lightweight " and " security " more and more is subjected to people's attention.In the lightweight of covering such as car door, vehicle body and suspender improved, new material and new forming method were the main method that alleviates tare.New material, the particularly utilization rate of high strength galvanized sheet on automobile nearly 60%.And traditional electric resistance welding can not satisfy the welding requirements of automobile body-in-white, and laser weld has contactless processing, flexibility, fast, little, the as deposited strength advantages of higher of distortion of speed of welding, more and more receives the concern of domestic and international car manufactures.But because the influence of zinc coat, during the galvanized sheet stitch welding in the middle of the vaporization of zinc floor height temperature, easily produce splash, pore, and problem such as the unsettled bond pattern of appearance, have a strong impact on welding quality and stability, become the difficult problem in automobile body-in-white laser weld field.
Analyze from welding process and principle, mainly cause by following three aspect reasons:
1, the molten boiling point of zinc and iron has big difference;
2, laser beam welding is very rapid;
3, the intermediate course gap can't accurately be controlled, and tension then zinc gas can't normally be discharged, and crosses pine and then the dry joint phenomenon can occur.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of uniformity that has realized welding omnidistance interlayer gap is provided, guaranteed that zinc gas has stable passing away, avoided splashing, the appearance of problem such as pore, bond pattern instability, welding process is steady, the galvanized sheet laser stitch welding device that welding quality and intensity are significantly improved.
According to technical scheme provided by the invention, described galvanized sheet laser stitch welding device, comprise the zinc-plated upper plate and the zinc-plated lower plate that stack, zinc-plated upper plate and zinc-plated lower plate are set in parallel, upper surface at zinc-plated upper plate is coated with the first zinc film upper strata, lower surface at zinc-plated upper plate is coated with the first zinc film lower floor, is coated with the second zinc film upper strata at the upper surface of zinc-plated lower plate, is coated with the second zinc film lower floor at the lower surface of zinc-plated lower plate; Upper surface on the first zinc film upper strata is provided with upper pressure wheel, and the wheel face of upper pressure wheel compresses the upper surface on the first zinc film upper strata, and upper pressure wheel is furnished with the upper pressure wheel axle; Lower surface in the second zinc film lower floor is provided with lower pressure wheel, and the wheel face of lower pressure wheel compresses the lower surface of the second zinc film lower floor, and lower pressure wheel is furnished with the wheel shaft of pressing down; The first zinc film lower floor following
Distance between the upper surface on the surface and the second zinc film upper strata is 0.1 ~ 0.2mm; The line in the center of circle, left side of upper pressure wheel and the center of circle, left side of lower pressure wheel is perpendicular to zinc-plated upper plate, and the axis of upper pressure wheel axle is parallel with zinc-plated upper plate, and the axis that presses down wheel shaft is parallel with zinc-plated lower plate, and the axis of upper pressure wheel axle is set in parallel with the axis that presses down wheel shaft; Above the first zinc film upper strata, be provided with the laser welding system nozzle, laser welding system nozzle, upper pressure wheel and lower pressure wheel be motion in the same way synchronously, the axis of laser welding system nozzle is vertical with zinc-plated upper plate, the focus that laser is launched on axis that the axis of laser welding system nozzle is positioned at the upper pressure wheel axle and the plane that presses down the axis place of wheel shaft, laser welding system nozzle is positioned at the surface of this side zinc rete adjacent with the laser welding system nozzle.
The present invention has realized welding the uniformity in omnidistance interlayer gap by two identical pressing wheel mechanisms up and down, having avoided producing in deformation that light sheet self exists and the welding process interlayer gap that distortion causes changes, guaranteed that zinc gas has stable passing away, avoided splashing, the appearance of problem such as pore, bond pattern instability, make welding process steady, welding quality and intensity are significantly improved.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a left view of the present invention.
Fig. 3 is a vertical view of the present invention.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure, the present invention mainly by zinc-plated upper plate 10, the first zinc film lower floor 11, the first zinc film upper strata 12, zinc-plated lower plate 20, the second zinc film lower floor 21, the second zinc film upper strata 22, upper pressure wheel 30, upper pressure wheel axle 31, lower pressure wheel 40, press down parts such as wheel shaft 41 and laser welding system nozzle 50 and constitute.
This galvanized sheet laser stitch welding device, comprise the zinc-plated upper plate 10 and zinc-plated lower plate 20 that stack, zinc-plated upper plate 10 is set in parallel with zinc-plated lower plate 20, upper surface at zinc-plated upper plate 10 is coated with the first zinc film upper strata 12, lower surface at zinc-plated upper plate 10 is coated with the first zinc film lower floor 11, upper surface in zinc-plated lower plate 20 is coated with the second zinc film upper strata 22, is coated with the second zinc film lower floor 21 at the lower surface of zinc-plated lower plate 20; Upper surface on the first zinc film upper strata 12 is provided with upper pressure wheel 30, and the wheel face of upper pressure wheel 30 compresses the upper surface on the first zinc film upper strata 12, and upper pressure wheel 30 is furnished with upper pressure wheel axle 31; Lower surface in the second zinc film lower floor 21 is provided with lower pressure wheel 40, and the wheel face of lower pressure wheel 40 compresses the lower surface of the second zinc film lower floor 21, and lower pressure wheel 40 is furnished with the wheel shaft of pressing down 41; Distance between the upper surface on the lower surface of the first zinc film lower floor 11 and the second zinc film upper strata 22 is 0.1 ~ 0.2mm; The line in the center of circle, left side of upper pressure wheel 30 and the center of circle, left side of lower pressure wheel 40 is perpendicular to zinc-plated upper plate 10, the axis of upper pressure wheel axle 31 is parallel with zinc-plated upper plate 10, the axis that presses down wheel shaft 41 is parallel with zinc-plated lower plate 20, the axis of upper pressure wheel axle 31 and the axis that presses down wheel shaft 41
Be set in parallel; Above the first zinc film upper strata 12 or the second zinc film lower floor 21 below be provided with laser welding system nozzle 50, laser welding system nozzle 50, upper pressure wheel 30 and lower pressure wheel 40 synchronous (amplitude is consistent) (inward-outward direction) motion in the same way, the axis of laser welding system nozzle 50 is vertical with zinc-plated upper plate 10, the focus that laser is launched on axis that the axis of laser welding system nozzle 50 is positioned at upper pressure wheel axle 31 and the plane that presses down the axis place of wheel shaft 41, laser welding system nozzle 50 is positioned at the surface of this side zinc rete adjacent with laser welding system nozzle 50.
Because the first zinc film lower floor 11, the first zinc film upper strata 12, the boiling point on the second zinc film lower floor 21 and the second zinc film upper strata 22 (about 908 ℃) is low excessively with the fusing point (about 1540 ℃) of zinc-plated lower plate 20 steel plates with respect to zinc-plated upper plate 10, when zinc-plated upper plate 10 merges with zinc-plated lower plate 20 steel plates fusing, the first zinc film lower floor 11, the first zinc film upper strata 12, the second zinc film lower floor 21 and the second zinc film upper strata 22 are vaporizated into gas already, and laser beam energy is very big, welding process is (millisecond rank) very rapidly, cause overflowing of zinc gas almost to be taken place synchronously with of the fusing of zinc-plated upper plate 10 with zinc-plated lower plate 20 steel plates, in the extremely short time, if the gap between the upper surface on the lower surface of the first zinc film lower floor 11 and the second zinc film upper strata 22 is extremely narrow, can cause the first zinc film lower floor 11 and the second zinc film upper strata 22 evaporation and sharply expansion rapidly, the liquid metal in zinc-plated upper plate 10 molten baths be produced to form splash; If the gap between the upper surface on the lower surface of the first zinc film lower floor 11 and the second zinc film upper strata 22 changes, or, then be easy to occur problems such as bond pattern instability because welding deformation causes the gap width between the upper surface on the lower surface of the first zinc film lower floor 11 and the second zinc film upper strata 22 to differ.
Therefore, for realizing the galvanized sheet laser stitch welding technology of continous-stable, the accurate gap between the upper surface on the lower surface of the control first zinc film lower floor 11 and the second zinc film upper strata 22, can not be wide also can not be narrow, grope through testing many times, the distance between the upper surface on the lower surface of the first zinc film lower floor 11 and the second zinc film upper strata 22 is preferably 0.1 ~ 0.2mm, and need keep crack unanimity weld interval, make zinc gas can stablize to such an extent that from the gap of accurately presetting, discharge, reach the purpose of stable welding.
As Fig. 1, upper surface at zinc-plated upper plate 10 is coated with the first zinc film upper strata 12, lower surface at zinc-plated upper plate 10 is coated with the first zinc film lower floor 11, upper surface in zinc-plated lower plate 20 is coated with the second zinc film upper strata 22, zinc-plated upper plate 10 and zinc-plated lower plate 20 are limited between upper pressure wheel 30 and the lower pressure wheel 40, determine gap between upper pressure wheel 30 and the lower pressure wheel 40 by upper pressure wheel axle 31 and the relative position that presses down wheel shaft 41, i.e. gap between the upper surface on the lower surface of the first zinc film lower floor 11 and the second zinc film upper strata 22, the axis of laser welding system nozzle 50 is vertical with zinc-plated upper plate 10, the focus that laser is launched on axis that the axis of laser welding system nozzle 50 is positioned at upper pressure wheel axle 31 and the plane that presses down the axis place of wheel shaft 41, laser welding system nozzle 50 is positioned at the surface of this side zinc rete adjacent with laser welding system nozzle 50.
In welding process, laser beam penetrates from laser welding system nozzle 50 and enters welding position, Laser Welding
Claims (2)
1. galvanized sheet laser stitch welding device, comprise the zinc-plated upper plate (10) and zinc-plated lower plate (20) that stack, zinc-plated upper plate (10) is set in parallel with zinc-plated lower plate (20), upper surface at zinc-plated upper plate (10) is coated with the first zinc film upper strata (12), lower surface at zinc-plated upper plate (10) is coated with the first zinc film lower floor (11), upper surface in zinc-plated lower plate (20) is coated with the second zinc film upper strata (22), is coated with the second zinc film lower floor (21) at the lower surface of zinc-plated lower plate (20); It is characterized in that: the upper surface on the first zinc film upper strata (12) is provided with upper pressure wheel (30), and the wheel face of upper pressure wheel (30) compresses the upper surface on the first zinc film upper strata (12), and upper pressure wheel (30) is furnished with upper pressure wheel axle (31); Lower surface in the second zinc film lower floor (21) is provided with lower pressure wheel (40), and the wheel face of lower pressure wheel (40) compresses the lower surface of the second zinc film lower floor (21), and lower pressure wheel (40) is furnished with the wheel shaft of pressing down (41); The line in the center of circle, left side of the center of circle, left side of upper pressure wheel (30) and lower pressure wheel (40) is perpendicular to zinc-plated upper plate (10), the axis of upper pressure wheel axle (31) is parallel with zinc-plated upper plate (10), the axis that presses down wheel shaft (41) is parallel with zinc-plated lower plate (20), and the axis of upper pressure wheel axle (31) is set in parallel with the axis that presses down wheel shaft (41); Be provided with laser welding system nozzle (50) in the top on the first zinc film upper strata (12) or the below of the second zinc film lower floor (21), laser welding system nozzle (50), upper pressure wheel (30) and lower pressure wheel (40) motion in the same way synchronously, the axis of laser welding system nozzle (50) is vertical with zinc-plated upper plate (10), the focus that laser is launched on axis that the axis of laser welding system nozzle (50) is positioned at upper pressure wheel axle (31) and the plane that presses down the axis place of wheel shaft (41), laser welding system nozzle (50) is positioned at the surface of this side zinc rete adjacent with laser welding system nozzle (50).
2. galvanized sheet laser stitch welding device as claimed in claim 1 is characterized in that the distance between the upper surface on the lower surface of the described first zinc film lower floor (11) and the second zinc film upper strata (22) is 0.1 ~ 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101317918A CN102240852A (en) | 2011-05-20 | 2011-05-20 | Laser stitch welding device for galvanized plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101317918A CN102240852A (en) | 2011-05-20 | 2011-05-20 | Laser stitch welding device for galvanized plate |
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| CN102240852A true CN102240852A (en) | 2011-11-16 |
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| CN2011101317918A Pending CN102240852A (en) | 2011-05-20 | 2011-05-20 | Laser stitch welding device for galvanized plate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922817A (en) * | 2012-11-20 | 2013-02-13 | 无锡汉神电气有限公司 | Galvanized sheet for laser stitch welding and welding process of galvanized sheet |
| CN104308367A (en) * | 2014-10-28 | 2015-01-28 | 无锡汉神电气有限公司 | Stainless steel laser stitch welding device |
| CN105364430A (en) * | 2015-12-24 | 2016-03-02 | 哈尔滨工业大学 | Laser welding method capable of realizing synchronous rolling of edge joints of sheets |
| CN105382430A (en) * | 2015-12-24 | 2016-03-09 | 余小刚 | Fixture device for metal sheet laser welding |
| CN107175404A (en) * | 2016-03-09 | 2017-09-19 | 日本特殊陶业株式会社 | Method for laser welding, the manufacture method of welded joint body, the manufacture method of the manufacture method of spark plug electrode and spark plug |
| CN114260628A (en) * | 2021-12-27 | 2022-04-01 | 苏州肯美特设备集成有限公司 | Welding device for sheet metal parts |
| CN115351452A (en) * | 2022-08-19 | 2022-11-18 | 马鞍山钢铁股份有限公司 | Galvanized sheet steel strip welding device and butt welding method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922817A (en) * | 2012-11-20 | 2013-02-13 | 无锡汉神电气有限公司 | Galvanized sheet for laser stitch welding and welding process of galvanized sheet |
| CN104308367A (en) * | 2014-10-28 | 2015-01-28 | 无锡汉神电气有限公司 | Stainless steel laser stitch welding device |
| CN105364430A (en) * | 2015-12-24 | 2016-03-02 | 哈尔滨工业大学 | Laser welding method capable of realizing synchronous rolling of edge joints of sheets |
| CN105382430A (en) * | 2015-12-24 | 2016-03-09 | 余小刚 | Fixture device for metal sheet laser welding |
| CN105364430B (en) * | 2015-12-24 | 2018-03-30 | 哈尔滨工业大学 | The method for laser welding that a kind of thin plate edge joint synchronously rolls |
| CN107175404A (en) * | 2016-03-09 | 2017-09-19 | 日本特殊陶业株式会社 | Method for laser welding, the manufacture method of welded joint body, the manufacture method of the manufacture method of spark plug electrode and spark plug |
| CN107175404B (en) * | 2016-03-09 | 2019-10-01 | 日本特殊陶业株式会社 | Method for laser welding, the manufacturing method of welded joint body, the manufacturing method of the manufacturing method of spark plug electrode and spark plug |
| CN114260628A (en) * | 2021-12-27 | 2022-04-01 | 苏州肯美特设备集成有限公司 | Welding device for sheet metal parts |
| CN114260628B (en) * | 2021-12-27 | 2024-04-16 | 苏州肯美特设备集成股份有限公司 | Welding device for sheet metal parts |
| CN115351452A (en) * | 2022-08-19 | 2022-11-18 | 马鞍山钢铁股份有限公司 | Galvanized sheet steel strip welding device and butt welding method |
| CN115351452B (en) * | 2022-08-19 | 2023-10-27 | 马鞍山钢铁股份有限公司 | Galvanized strip steel welding device and butt welding method |
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Application publication date: 20111116 |