CN212330064U - Laser welding positioning tool for thin plate sandwich structure - Google Patents
Laser welding positioning tool for thin plate sandwich structure Download PDFInfo
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- CN212330064U CN212330064U CN202020578519.9U CN202020578519U CN212330064U CN 212330064 U CN212330064 U CN 212330064U CN 202020578519 U CN202020578519 U CN 202020578519U CN 212330064 U CN212330064 U CN 212330064U
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Abstract
A laser welding positioning tool for a sheet sandwich structure comprises a core plate positioning component, an upper cover plate positioning component and a lower cover plate positioning component; the core plate positioning assembly comprises a left side channel steel, a core plate positioning channel steel, a core plate pressing air cylinder or hydraulic cylinder, a connecting plate, a right side upper beam, a right side lower beam, a right side front longitudinal beam and a right side rear longitudinal beam; the upper cover plate positioning assembly comprises an upper beam and an upper cover plate pressing air cylinder or hydraulic cylinder; the lower cover plate positioning assembly comprises a lower beam and a lower cover plate pressing air cylinder or hydraulic cylinder. The laser welding positioning tool is in a modular design, the main body is welded and fixed, and the core plate positioning channel steel can be quickly replaced, so that the maintenance time is reduced; the arrangement position of the air cylinder or the hydraulic cylinder is proper, the positioning precision of the core plate is high, the fit clearance of the upper cover plate, the lower cover plate and the core plate is ensured, and the welding reliability is improved; the laser welding follows the principle of welding from the middle to two sides and alternate welding from the upper surface to the lower surface, and the welding deformation of the workpiece is obviously controlled.
Description
Technical Field
The utility model belongs to frock field for boats and ships, concretely relates to laser welding location frock of sheet metal sandwich structure.
Background
At present, the traditional ship plate frame structures such as ship industry light wall structures and main transverse bulkhead structures adopt the mode of welding angle steel, channel steel, T-shaped steel and the like on plates to achieve the purpose of improving the structural rigidity, the ship plate frame structure occupies a large space and has low equal-weight strength, and therefore, a thin plate sandwich structure is adopted to replace the structure to become a development trend. Compared with the traditional ship plate frame structure, the thin plate sandwich structure has the advantages of reducing weight, saving space and reducing noise, the weight of the thin plate sandwich structure under the equal rigidity is reduced by 25-40%, the occupied space is reduced by 30-55%, the installation time is reduced, and the thin plate sandwich structure can be flexibly applied.
However, the sandwich structure of the existing thin plate adopts the traditional arc welding, and the sandwich structure has larger thermal stress, which causes serious deformation after welding. However, the conventional pressing mode is difficult to meet the requirement of laser welding on the overlap welding gap, so that the appearance of the welding seam surface is poor, and the combination degree cannot meet the requirement.
SUMMERY OF THE UTILITY MODEL
The utility model is directed to the above problem, a sheet metal sandwich structure's laser welding location frock is provided.
The purpose of the utility model can be realized by the following technical scheme: a laser welding positioning tool for a sheet sandwich structure comprises a core plate positioning component, an upper cover plate positioning component and a lower cover plate positioning component;
the core plate positioning assembly comprises a left side channel steel, a core plate positioning channel steel, a core plate pressing air cylinder or hydraulic cylinder, a connecting plate, a right side upper beam, a right side lower beam, a right side front longitudinal beam and a right side rear longitudinal beam; the core plate positioning device comprises a left side channel steel, a plurality of core plate positioning channel steel, a core plate pressing cylinder, a right side upper beam, a right side lower beam, a plurality of core plate positioning channels, a plurality of core plate pressing cylinders and a plurality of core plate positioning cylinders, wherein the left side channel steel extends forwards and backwards, an opening is arranged towards the left side, the core plate positioning channels are arranged at equal intervals forwards and backwards, each core plate positioning channel steel extends leftwards and rightwards, an opening is arranged forwards or backwards, the left end of each core plate positioning channel steel is connected with the left side channel steel through a bolt, the right end of each core plate positioning channel steel is connected with a vertically arranged connecting plate through a bolt, a plurality of core plate pressing cylinders or hydraulic cylinders are distributed in each core plate positioning channel steel, the piston ends of the core plate;
the upper cover plate positioning assembly comprises an upper beam and an upper cover plate pressing air cylinder or hydraulic cylinder; the upper beams are arranged on the upper side of the core plate positioning assembly and are arranged at equal intervals in the front-back direction, each upper beam extends left and right, two ends of each upper beam are respectively connected with the upper flange of the left channel steel and the right upper beam, more than two upper cover plate pressing air cylinders or hydraulic cylinders are distributed on the bottom surface of each upper beam, and the piston end of each upper cover plate pressing air cylinder or hydraulic cylinder is arranged downwards;
the lower cover plate positioning assembly comprises a lower beam and a lower cover plate pressing air cylinder or hydraulic cylinder; the lower beams are arranged on the lower side of the core plate positioning assembly and are arranged at equal intervals in the front-back direction, each lower beam extends in the left-right direction, two ends of each lower beam are respectively connected with the lower flange of the left channel steel and the right lower beam, more than two lower cover plate pressing air cylinders or hydraulic cylinders are distributed on the top surface of each lower beam, and the piston end of each lower cover plate pressing air cylinder or hydraulic cylinder is arranged upwards;
the core plate positioning channel steel is arranged on the upper portion of the core plate positioning channel steel, wherein a core plate limiting block is arranged at the left end of the back of the core plate positioning channel steel;
an upper cover plate left and right limiting block is arranged at the left end of the upper flange of the core plate positioning channel steel, the upper cover plate positioning assembly further comprises an upper side front connecting beam and an upper side rear connecting beam, the upper side front connecting beam and the upper side rear connecting beam are respectively arranged on the front sides and the rear sides of the upper beams, the upper side front connecting beam and the upper side rear connecting beam extend leftwards and rightwards, two ends of the upper side front connecting beam and the upper side rear connecting beam are respectively connected with the upper flange of the left channel steel and the right upper beam, and the upper cover plate front and rear limiting blocks are arranged on the bottom surface of the upper side;
the stopper about the lower flange left end department of core location channel-section steel is equipped with down the apron, apron locating component still includes coupling beam and downside back coupling beam before the downside, coupling beam and downside back coupling beam set up respectively in the front side and the rear side of a plurality of underbeams before the downside, and coupling beam and downside back coupling beam are all controlled to extend and both ends are connected with the lower flange and the right side underbeam of left side channel-section steel respectively before the downside, and the bottom surface of coupling beam or downside back coupling beam is equipped with stopper around the lower apron before the downside.
Furthermore, the core plate pressing cylinder or the piston end of the hydraulic cylinder, the upper cover plate pressing cylinder or the piston end of the hydraulic cylinder, and the lower cover plate pressing cylinder or the piston end of the hydraulic cylinder are all provided with ejector blocks.
Furthermore, core plate positioning channel steel seal plates are arranged at two ends of the core plate positioning channel steel.
Furthermore, reinforcing ribs are arranged in the core plate positioning channel steel.
Furthermore, the back of the core plate positioning channel steel and the connecting edge of the lower flange are provided with chamfers.
Further, right side upper beam and right side underbeam are the channel-section steel and the opening sets up towards the right side, are equipped with right side upper beam shrouding and right side underbeam shrouding on right side upper beam and the right side underbeam respectively.
Further, the upper beam and the lower beam are both I-shaped steel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the laser welding positioning tool is in a modular design, a main body is fixed by welding, core plate positioning channel steel is a main part for ensuring the positioning precision of a workpiece, the core plate positioning channel steel is used for positioning a core plate and pressing the next core plate, and simultaneously positioning a lower cover plate, and two ends of the lower cover plate are connected by bolts;
2. the workpiece is compressed by adopting a cylinder or hydraulic cylinder compression mode, and all compression cylinders or hydraulic cylinders are installed on the laser welding positioning tool in a bolt connection mode, so that the maintenance and the replacement are convenient;
3. the right end of the core plate positioning channel steel is connected to the right rectangular frame by adopting a connecting plate, the connecting plate is removed, after all the pressing air cylinders or hydraulic cylinders are loosened, the welded thin plate sandwich structural member can be taken out from the right side, and workpiece assembly can be easily carried out on the right side;
4. the laser welding positioning tool is arranged on the head and tail frame positioner through the upper side front connecting beam, the upper side rear connecting beam, the lower side front connecting beam and the upper side rear connecting beam, so that rapid overturning can be realized;
5. the core plate positioning channel steel in the laser welding positioning tool is longer than the workpiece, and the back of the long part of the core plate positioning channel steel can be used as a laser welding positioning reference surface, so that the scribing time is reduced;
6. the upper side and the lower side of each core plate are compressed by the compression cylinders or hydraulic cylinders, each core plate is compressed by at least 12 compression cylinders or hydraulic cylinders, the positioning precision is high, the upper cover plate and the lower cover plate are compressed by at least 3 compression cylinders or hydraulic cylinders between every two core plates, the joint gap between the upper cover plate and the core plate and the joint gap between the lower cover plate and the core plate can be effectively ensured, and the welding reliability is improved;
7. after the workpiece is clamped, laser spot welding is carried out on two ends of all welding seams, then laser welding is carried out according to the principle of welding from the middle to two sides and alternate welding from top to bottom, and compared with single-side continuous welding, the welding deformation is remarkably controlled.
Drawings
Fig. 1 is the structure schematic diagram of the laser welding positioning tool of the utility model.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a vertical sectional view of fig. 1.
FIG. 5 is a schematic view of the welding sequence for laser welding one side of the sheet sandwich structure.
FIG. 6 is a schematic view of the welding sequence of the other side of the laser welded sheet sandwich structure of FIG. 5.
The components in fig. 1 to 4 are numbered as follows:
1 left side channel steel
2 core plate positioning channel steel
3 core plate pressing air cylinder or hydraulic cylinder
4 connecting plate
5 Right side upper beam
6 Right side lower beam
7 right side front longitudinal beam
8 right side rear longitudinal beam
9 core plate limiting block
10 core board positioning channel steel sealing plate
11 reinforcing rib
12 right side upper beam sealing plate
13 right lower beam sealing plate
14 upper beam
15 upper cover plate pressing air cylinder or hydraulic cylinder
16 upper front connecting beam
17 upper rear connecting beam
18 front and rear limiting blocks of upper cover plate
19 left and right limiting blocks of upper cover plate
20 lower beam
21 lower cover plate pressing cylinder or hydraulic cylinder
22 left and right limit blocks of the lower cover plate.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
Referring to fig. 1 to 4, a laser welding positioning tool for a thin plate sandwich structure comprises a core plate positioning component, an upper cover plate positioning component and a lower cover plate positioning component.
The core plate positioning assembly comprises a left side channel steel 1, a core plate positioning channel steel 2, a core plate pressing air cylinder or hydraulic cylinder 3, a connecting plate 4, a right side upper beam 5, a right side lower beam 6, a right side front longitudinal beam 7 and a right side rear longitudinal beam 8.
The left channel steel 1 extends along the front-back direction, and an opening of the left channel steel is arranged towards the left; a plurality of core plate positioning channel steel 2 are arranged at equal intervals in the front-back direction, each core plate positioning channel steel 2 extends along the left-right direction and is provided with an opening forwards, the left end of each core plate positioning channel steel 2 is connected with the left-side channel steel 1 through a bolt, the right end of each core plate positioning channel steel 2 is connected with a vertically arranged connecting plate 4 through a bolt, a plurality of core plate pressing air cylinders or hydraulic cylinders 3 which are arranged in a rectangular array are distributed in the core plate positioning channel steel 2, in the embodiment, 12 core plate pressing air cylinders or hydraulic cylinders 3 which are arranged in a 2-6 array are arranged in each core plate positioning channel steel 2, the piston end of each core plate pressing air cylinder or hydraulic cylinder 3 is arranged in the, the core plate positioning channel steel 2 is used for pressing the core plate on the front side, and of course, the opening of the core plate positioning channel steel 2 and the piston end of the core plate pressing cylinder or hydraulic cylinder 3 can also be arranged backwards, which is not shown in the figure; the right side upper beam 5 and the right side lower beam 6 are vertically distributed and extend along the front-rear direction, the right side upper beam 5 and the right side lower beam 6 are connected with the right side front longitudinal beam 7 and the right side rear longitudinal beam 8 in a welding mode through the front-rear distributed right side front longitudinal beam, and the right side upper beam 5 and the right side lower beam 6 are connected with the upper end and the lower end of each connecting plate 4 through bolts respectively.
The core plate limiting block 9 is welded and connected at the left end of the back of the core plate positioning channel steel 2; the piston end of the core plate pressing cylinder or hydraulic cylinder 3 is provided with a top block; two ends of the core plate positioning channel steel 2 are welded with core plate positioning channel steel seal plates 10; the core plate positioning channel steel 2 is internally welded with a reinforcing rib 11; the back surface and the lower flange of the core plate positioning channel steel 2 are milled flat and are respectively used for ensuring the positioning accuracy of the core plate and the lower cover plate; and chamfers are arranged on the back surface of the core plate positioning channel steel 2 and the connecting edge of the lower flange, so that the influence of the corners of the core plate positioning channel steel 2 on the welding line is avoided. Right side upper beam 5 and right side underbeam 6 are the channel-section steel and the opening sets up towards the right side, and welded connection has right side upper beam shrouding 12 and right side underbeam shrouding 13 on right side upper beam 5 and the right side underbeam 6 respectively.
The upper cover plate positioning assembly comprises an upper beam 14 and an upper cover plate pressing air cylinder or hydraulic cylinder 15. A plurality of upper beams 14 set up in the upside of core location subassembly and equidistant arrangement around and, every upper beam 14 extends along left right direction, and the both ends of upper beam 14 respectively with left side channel-section steel 1's top flange and right side top beam 5 welded connection, it has two or more upper cover plate to compress tightly cylinder or pneumatic cylinder 15 to distribute about on the bottom surface of upper beam 14, and every upper cover plate compresses tightly the piston end of cylinder or pneumatic cylinder 15 and sets up down for compress tightly the upper cover plate on the top flange of a plurality of core location channel-section steels 2.
Wherein the upper beam 14 is an I-steel; the front side and the rear side of the upper beams 14 are respectively provided with an upper front connecting beam 16 and an upper rear connecting beam 17, the upper front connecting beam 16 and the upper rear connecting beam 17 extend along the left-right direction, and two ends of the upper front connecting beam 16 and the upper rear connecting beam 17 are respectively welded with the upper flange of the left channel steel 1 and the right upper beam 5; the bottom surface of the upper front connecting beam 16 or the upper rear connecting beam 17 is welded with an upper cover plate front and rear limiting block 18; the left end of the upper flange of each core plate positioning channel steel 2 is welded with an upper cover plate left and right limiting block 19; and the piston end of the upper cover plate pressing cylinder or hydraulic cylinder 15 is provided with a top block.
The lower cover plate positioning assembly comprises a lower beam 20 and a lower cover plate pressing air cylinder or hydraulic cylinder 21. A plurality of underbeam 20 sets up in core locating component's downside and equidistant arrangement around and, and every underbeam 20 extends along left right direction, and the both ends of underbeam 20 respectively with left side channel-section steel 1's bottom flange and the 6 welded connection of right side underbeam, it compresses tightly cylinder or pneumatic cylinder 21 to distribute about two more lower apron on the top surface of underbeam 20, and every lower apron compresses tightly cylinder or pneumatic cylinder 21's piston end up setting for compress tightly the lower apron on the bottom flange of a plurality of core location channel-section steels 2.
Wherein the lower beam 20 is an I-steel; the front side and the rear side of the lower beams 20 are respectively provided with a lower front connecting beam and a lower rear connecting beam, the lower front connecting beam and the lower rear connecting beam both extend along the left-right direction, and two ends of the lower front connecting beam and the lower rear connecting beam are respectively welded with the lower flange of the left channel steel 1 and the right lower beam 6; the top surface of the lower side front connecting beam or the lower side rear connecting beam is welded with a lower cover plate front and rear limiting block; a lower cover plate left and right limiting block 22 is welded and connected at the left end of the lower flange of each core plate positioning channel steel 2; and the piston end of the lower cover plate pressing cylinder or hydraulic cylinder 21 is provided with a top block.
In practical implementation, a small hole is formed between every two core plate positioning channel steel 2 on the left channel steel 1 and used for arranging an air path or a liquid path.
Before the welding, clear away welding area steel sheet priming paint to clearing up welding area with acetone, installing this laser welding location frock on first tail frame machine of shifting through tie-beam 16 before the upside, tie-beam 17 behind upside, tie-beam before the downside, tie-beam 17 behind the upside. The head and tail frame positioner is used for rapidly overturning the laser welding positioning tool, and is favorable for realizing laser welding operation.
During welding:
(1) with connecting plate 4 from core location channel-section steel 2, right side upper beam 5, lift off on the right side underbeam 6, the apron down will be respectively, the polylith core, the relevant position of this laser welding location frock is put to the upper cover plate, specifically do, arrange the apron down in on compressing tightly cylinder or pneumatic cylinder 21, arrange the polylith core respectively in on a plurality of cores location channel-section steels 2's the back, arrange the upper cover plate in the last edge of polylith core on, install connecting plate 4 again to core location channel-section steel 2, right side upper beam 5, on the right side underbeam 6, in order to realize fixing a plurality of cores location channel-section steels 2, later mark the position of core on apron and upper cover plate are drawn a line down. Wherein, when this embodiment installation core, place two isometric cores of assembling on every core location channel-section steel 2's the back, the core that guarantees to be located the centre compresses tightly the kicking block of cylinder or pneumatic cylinder 3 can push up in the joint of two isometric cores of assembling, and the position when the kicking block that guarantees the positioning weld on the welding bead and the below corresponds compresses tightly cylinder or pneumatic cylinder 3 pushes up is on same vertical face to reduce welding deformation.
(2) After the lower cover plate is positioned by the front and rear limiting blocks of the lower cover plate and the left and right limiting blocks 22 of the lower cover plate, the lower cover plate pressing air cylinder or hydraulic cylinder 21 is communicated to press the lower cover plate on the lower flanges of the core plate positioning channel steel 2.
(3) After the core plate is positioned by the core plate limiting block 9 on the back of the core plate positioning channel steel 2, the core plate pressing cylinder or the hydraulic cylinder 3 is communicated to press the core plate on the back of the core plate positioning channel steel 2.
(4) After the upper cover plate is positioned by the front and rear limit blocks 18 of the upper cover plate and the left and right limit blocks 19 of the upper cover plate, the upper cover plate pressing air cylinder or hydraulic cylinder 15 is switched on to press the upper cover plate on the upper edges of the plurality of core plates.
(5) And performing laser spot welding on two ends of all welding seams to be welded, and then performing laser welding according to the principle of welding from the middle to two sides and alternate welding on the upper surface and the lower surface so as to control welding deformation, wherein the welding sequence can be shown in fig. 5 and 6.
When the process is initially detected, each welding bead is welded from one side of the upper cover plate and one side of the lower cover plate, and the robot drives the laser head to walk and sequentially pass through a plurality of positioning welding lines.
In order to reduce the processing error of the core plates, a whole core plate can be used for replacing two isometric assembled core plates; when a single welding pass is welded under the condition that one core plate can not replace two core plates, the position of the joint of the two equal-length assembled core plates is found on the upper cover plate and the lower cover plate, and the welding is sequentially carried out towards two sides from the position (namely the length center of the welding pass).
And when each welding line is finished, introducing compressed air into the welding position, cooling the welding line to room temperature, and then starting welding at the next station.
(6) The connecting plate 4 is removed and the welded workpiece is taken out from the right side.
Note that core deformation easily occurs when turning over after welding is completed. Two persons are specially responsible for supporting the central area of the panel of the upper cover plate and the lower cover plate during transportation, so that the part is prevented from being deformed too much.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (7)
1. A laser welding positioning tool for a sheet sandwich structure is characterized by comprising a core plate positioning component, an upper cover plate positioning component and a lower cover plate positioning component;
the core plate positioning assembly comprises a left side channel steel, a core plate positioning channel steel, a core plate pressing air cylinder or hydraulic cylinder, a connecting plate, a right side upper beam, a right side lower beam, a right side front longitudinal beam and a right side rear longitudinal beam; the core plate positioning device comprises a left side channel steel, a plurality of core plate positioning channel steel, a core plate pressing cylinder, a right side upper beam, a right side lower beam, a plurality of core plate positioning channels, a plurality of core plate pressing cylinders and a plurality of core plate positioning cylinders, wherein the left side channel steel extends forwards and backwards, an opening is arranged towards the left side, the core plate positioning channels are arranged at equal intervals forwards and backwards, each core plate positioning channel steel extends leftwards and rightwards, an opening is arranged forwards or backwards, the left end of each core plate positioning channel steel is connected with the left side channel steel through a bolt, the right end of each core plate positioning channel steel is connected with a vertically arranged connecting plate through a bolt, a plurality of core plate pressing cylinders or hydraulic cylinders are distributed in each core plate positioning channel steel, the piston ends of the core plate;
the upper cover plate positioning assembly comprises an upper beam and an upper cover plate pressing air cylinder or hydraulic cylinder; the upper beams are arranged on the upper side of the core plate positioning assembly and are arranged at equal intervals in the front-back direction, each upper beam extends left and right, two ends of each upper beam are respectively connected with the upper flange of the left channel steel and the right upper beam, more than two upper cover plate pressing air cylinders or hydraulic cylinders are distributed on the bottom surface of each upper beam, and the piston end of each upper cover plate pressing air cylinder or hydraulic cylinder is arranged downwards;
the lower cover plate positioning assembly comprises a lower beam and a lower cover plate pressing air cylinder or hydraulic cylinder; the lower beams are arranged on the lower side of the core plate positioning assembly and are arranged at equal intervals in the front-back direction, each lower beam extends in the left-right direction, two ends of each lower beam are respectively connected with the lower flange of the left channel steel and the right lower beam, more than two lower cover plate pressing air cylinders or hydraulic cylinders are distributed on the top surface of each lower beam, and the piston end of each lower cover plate pressing air cylinder or hydraulic cylinder is arranged upwards;
the core plate positioning channel steel is arranged on the upper portion of the core plate positioning channel steel, wherein a core plate limiting block is arranged at the left end of the back of the core plate positioning channel steel;
an upper cover plate left and right limiting block is arranged at the left end of the upper flange of the core plate positioning channel steel, the upper cover plate positioning assembly further comprises an upper side front connecting beam and an upper side rear connecting beam, the upper side front connecting beam and the upper side rear connecting beam are respectively arranged on the front sides and the rear sides of the upper beams, the upper side front connecting beam and the upper side rear connecting beam extend leftwards and rightwards, two ends of the upper side front connecting beam and the upper side rear connecting beam are respectively connected with the upper flange of the left channel steel and the right upper beam, and the upper cover plate front and rear limiting blocks are arranged on the bottom surface of the upper side;
the stopper about the lower flange left end department of core location channel-section steel is equipped with down the apron, apron locating component still includes coupling beam and downside back coupling beam before the downside, coupling beam and downside back coupling beam set up respectively in the front side and the rear side of a plurality of underbeams before the downside, and coupling beam and downside back coupling beam are all controlled to extend and both ends are connected with the lower flange and the right side underbeam of left side channel-section steel respectively before the downside, and the bottom surface of coupling beam or downside back coupling beam is equipped with stopper around the lower apron before the downside.
2. The laser welding positioning tool for the sheet sandwich structure according to claim 1, wherein the piston end of the core plate pressing cylinder or hydraulic cylinder, the piston end of the upper cover plate pressing cylinder or hydraulic cylinder, and the piston end of the lower cover plate pressing cylinder or hydraulic cylinder are all provided with a top block.
3. The laser welding positioning tool for the sheet sandwich structure according to claim 1, wherein core plate positioning channel steel seal plates are arranged at two ends of the core plate positioning channel steel.
4. The laser welding positioning tool for the sheet sandwich structure according to claim 1, wherein reinforcing ribs are arranged in the core plate positioning channel steel.
5. The laser welding positioning tool for the sheet sandwich structure according to claim 1, wherein a chamfer is arranged on a connecting edge of the back surface of the core plate positioning channel steel and the lower flange.
6. The laser welding positioning tool for the sheet sandwich structure according to claim 1, wherein the right upper beam and the right lower beam are both channel steel and have openings facing to the right, and a right upper beam sealing plate and a right lower beam sealing plate are respectively arranged on the right upper beam and the right lower beam.
7. The laser welding positioning tool for the sheet sandwich structure according to claim 1, wherein the upper beam and the lower beam are both I-shaped steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020578519.9U CN212330064U (en) | 2020-04-17 | 2020-04-17 | Laser welding positioning tool for thin plate sandwich structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020578519.9U CN212330064U (en) | 2020-04-17 | 2020-04-17 | Laser welding positioning tool for thin plate sandwich structure |
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| CN212330064U true CN212330064U (en) | 2021-01-12 |
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| CN202020578519.9U Active CN212330064U (en) | 2020-04-17 | 2020-04-17 | Laser welding positioning tool for thin plate sandwich structure |
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Address after: No.855, cenglin Road, Lingang New Town, Pudong New Area, Shanghai, 201306 Patentee after: SHANGHAI LINGANG SHIPBUILDING EQUIPMENT Ltd. CORP CSSC Patentee after: Shanghai Shipbuilding Technology Research Institute (the 11th Research Institute of China Shipbuilding Corp.) Address before: No.855, cenglin Road, Lingang New Town, Pudong New Area, Shanghai, 201306 Patentee before: SHANGHAI LINGANG SHIPBUILDING EQUIPMENT Ltd. CORP CSSC Patentee before: SHIPBUILDING TECHNOLOGY Research Institute (NO 11 RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING Corp.,Ltd.) |
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