CN106825925A - The hold-down gear and laser welding apparatus of laser stitch welding weld seam - Google Patents
The hold-down gear and laser welding apparatus of laser stitch welding weld seam Download PDFInfo
- Publication number
- CN106825925A CN106825925A CN201611238350.7A CN201611238350A CN106825925A CN 106825925 A CN106825925 A CN 106825925A CN 201611238350 A CN201611238350 A CN 201611238350A CN 106825925 A CN106825925 A CN 106825925A
- Authority
- CN
- China
- Prior art keywords
- pinch roller
- connecting rod
- laser
- cylindrical cavity
- hold
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The embodiment of the present invention provides a kind of hold-down gear and laser welding apparatus of laser stitch welding weld seam.The hold-down gear of laser stitch welding weld seam of the present invention, including：Pinch roller connecting rod, pinch roller support, pinch roller, mandrel and locking member；The pinch roller connecting rod is connected with the pinch roller support, and the pinch roller connecting rod is used for the front of the light-emitting window that the pinch roller is arranged on laser welding apparatus；The pinch roller includes cylindrical body and cylindrical cavity, and the outer surface of the cylindrical body is provided with annular groove；The mandrel is connected through the cylindrical cavity with the cylindrical body, and is fixed in the pinch roller support by the tight latch fitting.The hold-down gear of the embodiment of the present invention is compressed for two point form, enables to commissure workpiece to fit completely, effectively lifts welding quality.
Description
Technical field
The present embodiments relate to mechanical technique, more particularly to a kind of laser stitch welding weld seam hold-down gear and laser welding
Equipment.
Background technology
Laser welding be by the use of high-energy-density laser beam as thermal source a kind of high-efficiency and precision welding method, it is sharp
One of importance of luminescent material process technology application.Laser welding be can apply into stainless steel train car body, outer plate surfaces
The impression left during without using resistance spot welding, improves aesthetic property, also, laser welding uses continuous weld, can increase
Car body strength, improves ability and outside plate non-deformability that car body resists flexural deformation, and Laser Welding Speed is fast, it is small to deform,
Improve car body dimensional accuracy, it is laser welding high degree of automation, flexible, auxiliary mould design can be simplified, greatly improve
Production efficiency, and advantageously ensure that the welding quality of stabilization.
Lap joint form be train body welding point form frequently with a kind of mode, this kind of mode need swashing
Photocoagulation equipment Handpiece Location increases corresponding hold-down mechanism, to ensure that welded gaps meet technological requirement.Laser stitch welding weld seam
Hold-down mechanism generally using unilateral roller compression mechanism.Wherein, unilateral roller compression mechanism is to be arranged on a contact roller
The side of Laser output mouthful, when laser welding is started, pinch roller travels forward with welding equipment head, plays workpiece pressing
Purpose.
However, unilateral roller compression mechanism is unilateral single-point type pressure card, when hold-down mechanism workpiece pressing, workpiece without pressure
Tightly while being susceptible to warpage, it is impossible to make commissure workpiece completely closely connected, welded gaps increase influences welding quality.
The content of the invention
The embodiment of the present invention provides a kind of hold-down gear and laser welding apparatus of laser stitch welding weld seam, to solve due to work
While there is warpage in part, it is impossible to make commissure workpiece completely closely connected, welded gaps increase, influence the problem of welding quality.
In a first aspect, the embodiment of the present invention provides a kind of hold-down gear of laser stitch welding weld seam, including：
Pinch roller connecting rod, pinch roller support, pinch roller, mandrel and locking member；
The pinch roller connecting rod is connected with the pinch roller support, and the pinch roller connecting rod is sharp for the pinch roller to be arranged on
The front of the light-emitting window of photocoagulation equipment；
The pinch roller includes cylindrical body and cylindrical cavity, and it is recessed that the outer surface of the cylindrical body is provided with annular
Groove；
The mandrel is connected through the cylindrical cavity with the cylindrical body, and is fixed on by the tight latch fitting
In the pinch roller support.
Optionally, the cylindrical cavity includes the first cylindrical cavity, the second cylindrical cavity and the 3rd cylindrical empty
Chamber；
The diameter of first cylindrical cavity is identical with the diameter of the 3rd cylindrical cavity, second cylinder
Diameter of the diameter of cavity less than first cylindrical cavity；
Described device also includes two bearings, and described two bearings are separately positioned on first cylinder through the mandrel
In shape cavity and the 3rd cylindrical cavity, the outer surface of each bearing contacts with the cylindrical body, each bearing
Inner surface is contacted with the mandrel.
Optionally, described device also includes packing ring, and the packing ring is arranged between the bearing and the pinch roller support.
Optionally, the pinch roller support includes base plate and two risers, and described two risers are separately positioned on the base plate
Both sides；
The base plate is provided with connecting hole, and the connecting hole of the base plate is used to pass through connector by the pinch roller support and institute
State the connection of pinch roller connecting rod；
Described two risers are respectively arranged with connecting hole, and the connecting hole of described two risers is used for the mandrel by described
Two connecting holes of riser are connected with the pinch roller support.
Optionally, the connecting hole is manhole, and the connector includes bolt.
Optionally, the pinch roller connecting rod includes the first pinch roller connecting rod and the second pinch roller connecting rod；
One end of the first pinch roller connecting rod is connected with the head of laser welding apparatus, the first pinch roller connecting rod
The other end is connected with one end of the second pinch roller connecting rod；
The other end of the second pinch roller connecting rod is connected with the base plate of the pinch roller support；
First pinch roller connecting rod and the second pinch roller connecting rod are used to be arranged on the pinch roller light extraction of laser welding apparatus
The front of mouth.
Optionally, the pinch roller is chromium-zirconium-copper material.
Optionally, the mandrel is bolt, and the locking member is nut.
Second aspect, the embodiment of the present invention provides a kind of laser welding apparatus, and the laser welding apparatus include such as first
The hold-down gear of the laser stitch welding weld seam described in aspect；
The hold-down gear of the laser stitch welding weld seam is arranged on the front of the light-emitting window of the laser welding apparatus.
The hold-down gear and laser welding apparatus of embodiment of the present invention laser stitch welding weld seam, by laser welding apparatus
The front of light-emitting window sets pinch roller, and the pinch roller includes cylindrical body and cylindrical cavity, and the outer surface of cylindrical body is set
There is annular groove, mandrel is connected through cylindrical cavity with cylindrical body, and is fixed in pinch roller support by tight latch fitting,
When carrying out laser stitch welding using the hold-down gear of the present embodiment, because pinch roller has annular groove so that the compression of the present embodiment
Device is compressed for two point form, enables to commissure workpiece to fit completely, effectively lifts welding quality.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the hold-down gear embodiment one of laser stitch welding weld seam of the present invention；
Fig. 2 is the structural representation of pinch roller embodiment one of the present invention；
Fig. 3 A are the structural representation of the hold-down gear embodiment two of laser stitch welding weld seam of the present invention；
Fig. 3 B are the partial structural diagram of the hold-down gear embodiment two of laser stitch welding weld seam of the present invention；
Fig. 4 is the structural representation of pinch roller embodiment two of the present invention；
Fig. 5 A are the structural front view of pinch roller support of the present invention；
Fig. 5 B are the structure top view of pinch roller support of the present invention；
Fig. 5 C are the structural side view of pinch roller support of the present invention；
Fig. 6 A are the structural front view of the first pinch roller connecting rod of the invention；
Fig. 6 B are the structural side view of the first pinch roller connecting rod of the invention；
Fig. 7 A are the structural front view of the second pinch roller connecting rod of the invention；
Fig. 7 B are the structural side view of the second pinch roller connecting rod of the invention.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the structural representation of the hold-down gear embodiment one of laser stitch welding weld seam of the present invention, and Fig. 2 is pinch roller of the present invention
The structural representation of embodiment one, as shown in figure 1, the device of the present embodiment can include：Pinch roller connecting rod 1, pinch roller support 2,
Pinch roller 3, mandrel 4 and locking member 5.Wherein, pinch roller connecting rod 1 is connected with pinch roller support 2, and pinch roller connecting rod 1 is used for the pressure
Wheel 3 is arranged on the front of the light-emitting window of laser welding apparatus.
Wherein, as shown in Fig. 2 pinch roller 3 includes cylindrical body 31 and cylindrical cavity 32, the appearance of cylindrical body 31
Face is provided with annular groove 33.The width of the annular groove 33 can flexibly be set according to demand.The annular groove 33
Shape can also be configured according to demand, and it specifically can be using the shape of annular groove 33 as shown in Figure 2.
Mandrel 4 is connected through cylindrical cavity 32 with cylindrical body 31, and mandrel 4 is fixed on into pressure by tight latch fitting 5
On wheel support 2.The cylindrical body 31 of pinch roller 3 axle can be rotated centered on mandrel 4.It should be understood that can be in pressure
Bearing is set between the cylindrical body 31 and mandrel 4 of wheel 3, is beneficial to pinch roller 3 and is rotated.
Optionally, mandrel 4 can be bolt, and locking member 5 can be nut.
The hold-down gear of the laser stitch welding weld seam of the present embodiment, is set by the front of the light-emitting window in laser welding apparatus
Pinch roller, the pinch roller includes cylindrical body and cylindrical cavity, and the outer surface of cylindrical body is provided with annular groove, and mandrel is worn
Cross cylindrical cavity to be connected with cylindrical body, and be fixed in pinch roller support by tight latch fitting, in the pressure using the present embodiment
When tight device carries out laser stitch welding, because pinch roller has annular groove so that the hold-down gear of the present embodiment is compressed for two point form,
Enable to commissure workpiece to fit completely, effectively lift welding quality.
Fig. 3 A are the structural representation of the hold-down gear embodiment two of laser stitch welding weld seam of the present invention, and Fig. 3 B swash for the present invention
The partial structural diagram of the hold-down gear embodiment two of light stitch welding weld seam, Fig. 4 is that the structure of pinch roller embodiment two of the present invention is shown
It is intended to, as shown in Fig. 3 A, Fig. 3 B and Fig. 4, the device of the present embodiment further, is pressed on the basis of Fig. 1 shown device structures
The cylindrical cavity 32 of wheel 3 can include the first cylindrical cavity 321, the second cylindrical cavity 322 and the 3rd cylindrical cavity
323。
Wherein, as shown in figure 4, the diameter of the first cylindrical cavity 321 is identical with the diameter of the 3rd cylindrical cavity 323,
Diameter of the diameter of the second cylindrical cavity 322 less than the first cylindrical cavity 321.
Further, the hold-down gear of laser stitch welding weld seam of the present invention can also include two bearings (61 and 62), two
Bearing (61 and 62) is separately positioned in the first cylindrical cavity 321 and the 3rd cylindrical cavity 323 through mandrel 4, each axle
The outer surface for holding (61,62) is contacted with cylindrical body 31, and the inner surface of each bearing (61,62) is contacted with mandrel 4.
Torque can be effectively transmitted by setting bearing before the cylindrical body 31 of pinch roller 3 and mandrel, and reduces pressure
3 coefficient of friction in rolling process of wheel.
Optionally, the hold-down gear of laser stitch welding weld seam of the present invention can also include packing ring (71 and 72), and each packing ring sets
Put between a bearing and pinch roller support 2.Specifically, packing ring 71 is set between bearing 61 and pinch roller support 2, in bearing 62
Packing ring 72 is set between pinch roller support 2.Setting packing ring can effectively reduce the mill to bearing between bearing and pinch roller support
Damage.
Optionally, pinch roller 3 is chromium-zirconium-copper material.
The hold-down gear of the laser stitch welding weld seam of the present embodiment, is set by the front of the light-emitting window in laser welding apparatus
Pinch roller, the pinch roller includes cylindrical body and cylindrical cavity, and the outer surface of cylindrical body is provided with annular groove, and mandrel is worn
Cross cylindrical cavity to be connected with cylindrical body, and be fixed in pinch roller support by tight latch fitting, in the pressure using the present embodiment
When tight device carries out laser stitch welding, because pinch roller has annular groove so that the hold-down gear of the present embodiment is compressed for two point form,
Enable to commissure workpiece to fit completely, effectively lift welding quality.
Fig. 5 A are the structural front view of pinch roller support of the present invention, and Fig. 5 B are the structure top view of pinch roller support of the present invention, figure
5C is the structural side view of pinch roller support of the present invention, and with reference to shown in Fig. 5 A to Fig. 5 B, the present embodiment is in Fig. 1 shown device structures
On the basis of, further, the pinch roller support of the present embodiment can specifically include：Base plate 21 and two risers (22 and 23), two
Riser (22 and 23) is separately positioned on the both sides of base plate 21.
Base plate 21 is provided with connecting hole, and the connecting hole of base plate 21 is used to be connected pinch roller support 2 with pinch roller by connector
Bar 1 is connected, and the number of the connecting hole can be as shown in Figure 5 B 4 holes, it is of course possible to can set the connecting hole of other numbers.
Connecting hole 221 is provided with riser 22, connecting hole 231, connecting hole 221 and connecting hole 231 are provided with riser 23
Size shape it is identical, and be adapted with the size shape of mandrel 4.Two connecting holes of riser are used for mandrel and pass through two risers
Connecting hole be connected with pinch roller support.
Optionally, the connecting hole (221 and 231) can be manhole, or hexagon through hole, the connector bag
Include bolt.
The hold-down gear of the laser stitch welding weld seam of the present embodiment, is set by the front of the light-emitting window in laser welding apparatus
Pinch roller, the pinch roller includes cylindrical body and cylindrical cavity, and the outer surface of cylindrical body is provided with annular groove, and mandrel is worn
Cross cylindrical cavity to be connected with cylindrical body, and be fixed in pinch roller support by tight latch fitting, in the pressure using the present embodiment
When tight device carries out laser stitch welding, because pinch roller has annular groove so that the hold-down gear of the present embodiment is compressed for two point form,
Enable to commissure workpiece to fit completely, effectively lift welding quality.
Fig. 6 A are the structural front view of the first pinch roller connecting rod of the invention, and Fig. 6 B are the knot of the first pinch roller connecting rod of the invention
Structure side view, Fig. 7 A are the structural front view of the second pinch roller connecting rod of the invention, and Fig. 7 B are the second pinch roller connecting rod of the invention
Structural side view, on the basis of Fig. 1 shown device structures, further, pinch roller connecting rod 1 includes the first pinch roller to the present embodiment
The pinch roller connecting rod 12 of connecting rod 11 and second.
One end of first pinch roller connecting rod 11 is connected with the head of laser welding apparatus, the first pinch roller connecting rod 12 it is another
End is connected with one end of the second pinch roller connecting rod 12；The other end of the second pinch roller connecting rod 12 connects with the base plate 21 of pinch roller support 2
Connect；First pinch roller connecting rod and the second pinch roller connecting rod are used for the front of the light-emitting window that pinch roller 3 is arranged on laser welding apparatus.
Specifically, as shown in Figure 6 A and 6 B, the first pinch roller connecting rod 11 is bending shape, such shape be in order that
Pinch roller 3 must be arranged on the front of the light-emitting window of laser welding apparatus, and avoid the miscellaneous part of laser welding apparatus head.Should
The connecting hole 111 and connecting hole 112 of the first pinch roller connecting rod 11 are used to be connected with the head of laser welding apparatus by bolt, should
The screwed hole 113 and screwed hole 114 of the first pinch roller connecting rod 11 are used to be connected with the second pinch roller connecting rod 12.
Specifically, as shown in figures 7 a and 7b, the counter sink 121 and counter sink 122 of the second pinch roller connecting rod 12 are used to lead to
Cross bolt to be connected with the first pinch roller connecting rod 11, four screwed holes (123,124,125 and 125) of the second pinch roller connecting rod 12 are used
It is connected with pinch roller support 2 in by bolt.
The hold-down gear of the laser stitch welding weld seam of the present embodiment, is set by the front of the light-emitting window in laser welding apparatus
Pinch roller, the pinch roller includes cylindrical body and cylindrical cavity, and the outer surface of cylindrical body is provided with annular groove, and mandrel is worn
Cross cylindrical cavity to be connected with cylindrical body, and be fixed in pinch roller support by tight latch fitting, in the pressure using the present embodiment
When tight device carries out laser stitch welding, because pinch roller has annular groove so that the hold-down gear of the present embodiment is compressed for two point form,
Enable to commissure workpiece to fit completely, effectively lift welding quality.
The specific mounting means of the hold-down gear of laser stitch welding weld seam of the invention can be as follows：
(1) pinch roller support 2 is connected with pinch roller connecting rod 1 by bolt.
(2) Fig. 3 B are referred to from left to right, according to pinch roller support, packing ring, bearing, pinch roller, bearing, packing ring, pinch roller branch
The order of frame, is together in series with mandrel, is then tightened locking member and is fixed.
(3) pinch roller connecting rod 2 is connected by two dormant bolts with pinch roller connecting rod 1.
(4) pinch roller connecting rod 1 is connected with the head of laser welding apparatus.
(5) install.
The embodiment of the present invention also provides a kind of laser welding apparatus, and the laser welding apparatus of the embodiment of the present invention include：Swash
The hold-down gear of light stitch welding weld seam, wherein, the hold-down gear of laser stitch welding weld seam can be using the structure of above-described embodiment, laser
The hold-down gear of stitch welding weld seam is arranged on the front of the light-emitting window of the laser welding apparatus, its realization principle and technique effect class
Seemingly, here is omitted.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a kind of hold-down gear of laser stitch welding weld seam, it is characterised in that including：
Pinch roller connecting rod, pinch roller support, pinch roller, mandrel and locking member；
The pinch roller connecting rod is connected with the pinch roller support, and the pinch roller connecting rod is used to for the pinch roller to be arranged on Laser Welding
Connect the front of the light-emitting window of equipment；
The pinch roller includes cylindrical body and cylindrical cavity, and the outer surface of the cylindrical body is provided with annular groove；
The mandrel is connected through the cylindrical cavity with the cylindrical body, and is fixed on by the tight latch fitting described
In pinch roller support.
2. device according to claim 1, it is characterised in that the cylindrical cavity includes the first cylindrical cavity, the
Two cylindrical cavities and the 3rd cylindrical cavity；
The diameter of first cylindrical cavity is identical with the diameter of the 3rd cylindrical cavity, second cylindrical cavity
Diameter less than first cylindrical cavity diameter；
Described device also includes two bearings, and described two bearings are separately positioned on first cylindrical empty through the mandrel
In chamber and the 3rd cylindrical cavity, the outer surface of each bearing contacts with the cylindrical body, the interior table of each bearing
Face contacts with the mandrel.
3. device according to claim 2, it is characterised in that described device also includes packing ring, the packing ring is arranged on institute
State between bearing and the pinch roller support.
4. the device according to any one of claims 1 to 3, it is characterised in that the pinch roller support includes base plate and two
Riser, described two risers are separately positioned on the both sides of the base plate；
The base plate is provided with connecting hole, and the connecting hole of the base plate is used to pass through connector by the pinch roller support and the pressure
Wheel connecting rod connection；
Described two risers are respectively arranged with connecting hole, and the connecting hole of described two risers is used for the mandrel by described two
The connecting hole of riser is connected with the pinch roller support.
5. device according to claim 4, it is characterised in that the connecting hole is manhole, the connector includes
Bolt.
6. device according to claim 4, it is characterised in that the pinch roller connecting rod includes the first pinch roller connecting rod and the
Two pinch roller connecting rods；
One end of the first pinch roller connecting rod is connected with the head of laser welding apparatus, the first pinch roller connecting rod it is another
End is connected with one end of the second pinch roller connecting rod；
The other end of the second pinch roller connecting rod is connected with the base plate of the pinch roller support；
First pinch roller connecting rod and the second pinch roller connecting rod are used to be arranged on the pinch roller light-emitting window of laser welding apparatus
Front.
7. the device according to any one of claims 1 to 3, it is characterised in that the pinch roller is chromium-zirconium-copper material.
8. the device according to any one of claims 1 to 3, it is characterised in that the mandrel is bolt, the locking member is
Nut.
9. a kind of laser welding apparatus, it is characterised in that the laser welding apparatus are included such as any one of claim 1 to 8 institute
The hold-down gear of the laser stitch welding weld seam stated；
The hold-down gear of the laser stitch welding weld seam is arranged on the front of the light-emitting window of the laser welding apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238350.7A CN106825925A (en) | 2016-12-28 | 2016-12-28 | The hold-down gear and laser welding apparatus of laser stitch welding weld seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238350.7A CN106825925A (en) | 2016-12-28 | 2016-12-28 | The hold-down gear and laser welding apparatus of laser stitch welding weld seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106825925A true CN106825925A (en) | 2017-06-13 |
Family
ID=59114317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611238350.7A Pending CN106825925A (en) | 2016-12-28 | 2016-12-28 | The hold-down gear and laser welding apparatus of laser stitch welding weld seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106825925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482702A (en) * | 2020-04-22 | 2020-08-04 | 中车青岛四方机车车辆股份有限公司 | Laser welding pressing device, laser welding system and laser welding method |
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| KR20130070383A (en) * | 2011-12-19 | 2013-06-27 | 주식회사 성우하이텍 | A panel gap adjusting device for laser welding |
| CN203556654U (en) * | 2013-07-11 | 2014-04-23 | 张家港联峰钢铁研究所有限公司 | U-shaped wheel rolling type guide groove |
| CN203853382U (en) * | 2014-04-09 | 2014-10-01 | 张家港联峰钢铁研究所有限公司 | Single-wheel combined type rolling guide groove |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11347763A (en) * | 1998-06-05 | 1999-12-21 | Nissan Motor Co Ltd | Laser welding equipment and its method |
| JP2004358528A (en) * | 2003-06-05 | 2004-12-24 | Keylex Corp | Laser beam welding device |
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| JP2010017741A (en) * | 2008-07-10 | 2010-01-28 | Hitachi Ltd | Laser welding method |
| KR20130070383A (en) * | 2011-12-19 | 2013-06-27 | 주식회사 성우하이텍 | A panel gap adjusting device for laser welding |
| CN203556654U (en) * | 2013-07-11 | 2014-04-23 | 张家港联峰钢铁研究所有限公司 | U-shaped wheel rolling type guide groove |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111482702A (en) * | 2020-04-22 | 2020-08-04 | 中车青岛四方机车车辆股份有限公司 | Laser welding pressing device, laser welding system and laser welding method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
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