CN219053185U - Metal plate welding structure - Google Patents
Metal plate welding structure Download PDFInfo
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- CN219053185U CN219053185U CN202220901010.2U CN202220901010U CN219053185U CN 219053185 U CN219053185 U CN 219053185U CN 202220901010 U CN202220901010 U CN 202220901010U CN 219053185 U CN219053185 U CN 219053185U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a welding structure, in particular to a metal plate welding structure for structural members between thick plates, which comprises a bottom plate (1) and an auxiliary plate (2), wherein the bottom plate (1) and the auxiliary plate (2) are both metal plates, the metal plate further comprises an auxiliary plate (3) arranged in the auxiliary plate (2), the lower surface of the auxiliary plate (2) is partially or completely attached to the upper surface of the bottom plate (1), the lower surface of the auxiliary plate (3) is completely attached to the upper surface of the bottom plate (1), and the bottom plate (1), the auxiliary plate (3) and the auxiliary plate (2) are welded and connected through welding materials. Through subplate outer fringe simultaneously with connect bottom plate, subplate welded structure, utilize the intermediate subplate to fill the intermediate structural weakness of subplate, whole structure when receiving the external force of multiple direction, can both transmit on the intermediate subplate for the subplate is difficult for producing deformation and buckling that causes such as stress concentration, improves whole welded component structural strength and stability.
Description
Technical Field
The utility model relates to a welding structure, in particular to a metal plate welding structure used for structural members between thick plates.
Background
At present, the traditional metal plates are connected with the metal plates in an end-to-end butt joint mode, and the formed welding seams are mostly arranged at the edges of the metal plates and are in a straight line mode. Such a weld is generally effective when two metal plates are subjected to an external force parallel to the weld, and when they are subjected to an external force perpendicular to the weld, the weld portion is very easily broken and cracks are generated. In practical application fields, the structural member has a wide application range, and many application fields tend to be subjected to shearing forces in different directions, so that for traditional end-to-end connection, a straight welding line cannot maintain stable connection performance under some special working conditions.
Disclosure of Invention
Aiming at the problems that in the prior art, surface welding cannot be carried out between two steel plates, only plane welding and end or edge welding can be adopted, namely the problem of surface end welding or end welding can be solved, and the welding seam formed when two metal plates are in butt joint connection with each other is mostly a linear type opening welding seam, when the welding seam is subjected to external force perpendicular to the welding seam, the welding seam part is very easy to damage and crack, and the structure is welded with a connecting bottom plate and an auxiliary plate through the outer edge of the auxiliary plate, the middle auxiliary plate is utilized to fill the structural weakness of the middle part of the auxiliary plate caused by the hollow middle part of the traditional welding structure, and the whole structural member can be transferred to the middle auxiliary plate when the whole structural member is subjected to external force in various directions, so that the auxiliary plate is not easy to deform and buckle caused by stress concentration and the like, and the structural strength and stability of the whole welding member are improved.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
the utility model provides a metal sheet welded structure, includes bottom plate and subplate, and bottom plate and subplate are the metal sheet, still including setting up the subplate in the subplate inboard, the lower surface of subplate is laminated with the upper surface part or the whole laminating of bottom plate, the lower surface of subplate is laminated with the upper surface of bottom plate is whole, passes through welding material welded connection between bottom plate, subplate and the subplate. When traditional structural members are welded, mostly lap welding or plug welding is adopted, most of welding lines formed when two metal plate ends are in butt joint connection are linear non-closed welding lines, and when the welding lines are subjected to external force parallel to the welding lines, the stability of a connecting structure is the best, however, in the actual use process, a plurality of structural members are often subjected to external force with different directions, so that the welding line structure is easy to damage and cracks are generated.
At present, the problem of welding and quality of the surface of a steel plate cannot be solved between the traditional steel plates for structural members, the secondary plates are arranged in the secondary plates, the outer edges of the secondary plates are welded, the bottom plates and the secondary plates are connected, the middle secondary plates fill the structural weakness in the middle of the secondary plates, when the whole structural member is subjected to external force in all directions, the external force can be transferred to the middle secondary plates through the closed welding seams, and part of the external force can be offset on the middle secondary plates, so that the secondary plates are not easy to deform and bend due to stress concentration and the like, and the occurrence of welding seam cracks is reduced.
Preferably, the auxiliary plate is internally provided with a hollowed-out cutting surface similar to the outer edge of the auxiliary plate in shape, the area of the cutting surface is larger than that of the auxiliary plate, the auxiliary plate is arranged in the cutting surface, the outer edge of the auxiliary plate is welded with the inner edge of the auxiliary plate through a welding material, and the distance between the outer edge of the auxiliary plate and the inner edge of the auxiliary plate is 0.5-2 times of the plate thickness of the auxiliary plate. The cutting surface is a hollowed-out part formed after the inner cutting of the auxiliary plate, the shape of the outer edge of the auxiliary plate is similar to that of the inner edge of the cutting surface in the auxiliary plate, a distance which is 0.5-2 times of the thickness of the auxiliary plate is reserved between the outer edge of the auxiliary plate and the inner edge of the cutting surface in the auxiliary plate, and the outer edge of the auxiliary plate is connected with the inner edge of the cutting surface in the auxiliary plate through welding. The welded seam formed after welding is closed-loop type and is positioned in the auxiliary plate, and when the welded structure is subjected to uneven external force, the closed-loop type welded seam can bear the external force in all directions, so that the welded seam has excellent performance when being used as a structural member.
Preferably, the secondary plate is a sub-plate of the secondary plate, the secondary plate and the secondary plate are made of integrated materials, more than one section of cutting groove is arranged between the secondary plate and the secondary plate, and the secondary plate is connected with the secondary plate through a connecting section. The secondary board is a part of the secondary board, the secondary board is a residual board formed by cutting the secondary board body, and the secondary board can be a whole board left after the middle part of the secondary board is completely cut; the secondary plate can also be used for carrying out partial cutting on the secondary plate, and only one or more than one connecting section of small sections is reserved, wherein the connecting section is used for reserving the connection between the secondary plate and the secondary plate, so that the secondary plate can be still fixed in the middle of the secondary plate and cannot fall off naturally. The connecting section structure ensures that the auxiliary plate still remains the auxiliary plate after being processed in a factory, is more convenient in transportation and has high transportation efficiency and space utilization rate; meanwhile, when in later welding, the secondary plate is not required to be placed in the secondary plate, positioning and position fixing are carried out, and the secondary plate can be directly welded.
To ensure the structural strength of face-to-face welding, if lattice welding is adopted, the stress is concentrated, the strength is insufficient, if line welding is adopted, the welding is still insufficient in face-to-face welding, but if a closed full-spread welding cake with a larger area is adopted, the heat input quantity is extremely large, the deformation is large, the defects brought by a surrounding heat affected zone are large, the whole area is radiated by adopting an interval welding bead in a larger peripheral area, and a secondary plate is reserved between the welding bead and the welding bead through a connecting section, so that the welding quantity is reduced, and the welding connection strength of the whole larger area is ensured.
Preferably, the number of the cutting grooves is at least two, and the shortest distance between adjacent cutting grooves is 0.1 to 1 times the thickness of the sub-plate. When the distance between adjacent cutting grooves is larger than the thickness of the auxiliary plate, penetration and penetration are not easy to occur during welding, the welding effect is affected, and when the distance between the adjacent cutting grooves is smaller than 0.1 times of the thickness of the auxiliary plate, the connection strength between the auxiliary plate and the intermediate auxiliary plate is low, and the auxiliary plate is easy to fall off. Secondly, the connecting section is made of auxiliary plate parent material, when the welding material is welded to the connecting section, after the welding material is melted, part of the parent material is fused with the welding material, so that the welding material of the melting part is arranged between the auxiliary plate and the auxiliary plate parent material as well as the welding material, and the connecting and combining performance and effect between the welding material and the auxiliary plate are better.
Preferably, the welding material is welding rod or welding wire, and the welding material forms welding seams for connecting the bottom plate, the auxiliary plate and the secondary plate after welding and melting.
Preferably, the weld is a closed-loop weld. Compared to straight or non-closed loop welds, first: the straight-line welding seam or the non-closed-loop welding seam is necessarily provided with a starting welding point and a receiving welding point, a person knowing the welding knows that the starting welding point and the receiving welding point are always the weakest points of the whole welding seam during the welding, and the problem is easy to occur firstly under the action of external force, and the starting welding point is passed through in the welding process of the closed-loop welding seam, so that only one receiving welding point is provided, and the weak points of the welding seam are reduced; and secondly, the closed-loop welding seam enables the welded metal plate structure to be transferred to the middle secondary plate when being subjected to irregular external force, especially circumferential force or external force in multiple directions, so that the secondary plate is not easy to deform and bend caused by stress concentration and the like, and the metal plate structure is very suitable for structural members under complex working conditions.
Preferably, the auxiliary plate comprises a connecting auxiliary plate attached to the upper surface of the bottom plate and a bending auxiliary plate which forms an included angle with the connecting auxiliary plate after bending. The connecting auxiliary plate is mainly used for connecting with the bottom plate, and the bending auxiliary plate can be free and can also be used for connecting with other parts.
Preferably, the secondary plate is circular, elliptical, quadrilateral or triangular. Whether circular, oval, quadrilateral or triangular, is a closed pattern, so that the welded seam comprises at least one closed seam.
In the present utility model, the thickness of the bottom plate and the sub-plate is preferably 2mm or more. The surface welding is required to achieve the function of a structural member, and the steel plate needs to have a certain thickness, when the steel plate is very thin, such as less than 2mm thick, such as a thin plate of an automobile panel and the like is connected, the steel plate cannot be used as a stressed structural member, so that the prior art generally adopts an external direct penetration method without a welding cavity, namely adopts high power to directly penetrate the B plate outside, and the direct welding of the B plate and the A plate is achieved. The metal plate with the thickness of more than 2mm is generally not capable of being melted through laser welding, and even after the metal plate is melted through, the metal plate cannot bear large external force due to the welding quality, and the metal plate cannot be used as a structural member.
The utility model has the remarkable technical effects due to the adoption of the technical scheme: through subplate outer fringe simultaneously with connect bottom plate, subplate welded structure, the subplate in the middle of the rethread in the middle of the subplate, avoided the middle part structure weakness that the subplate exists, whole structure when receiving the external force of all directions, can both transmit on the subplate in the middle for the subplate is difficult for producing deformation and buckling that causes such as stress concentration, improves whole welding member structural strength.
Drawings
FIG. 1 is a schematic view of the utility model prior to welding in example 1
FIG. 2 is a schematic diagram of the welded structure in example 1 of the present utility model
FIG. 3 is a schematic view of the utility model in example 2 before welding
FIG. 4 is a schematic illustration of the welded part in example 2 of the present utility model
FIG. 5 is a schematic view of the utility model in example 3 before welding
FIG. 6 is a schematic view of the welded structure in example 3 of the present utility model
FIG. 7 is a schematic view showing the structure of the sub-panel in embodiment 1 of the present utility model
The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: wherein 1-bottom plate, 2-auxiliary plate, 3-auxiliary plate, 4-weld joint, 21-cutting surface, 22-connection auxiliary plate, 23-cutting groove, 24-connection section and 25-bending auxiliary plate.
Detailed Description
The utility model is described in further detail below with reference to fig. 1 to 7 and examples:
example 1
The utility model provides a metal sheet welded structure, as shown in fig. 1 through 2, includes bottom plate 1 and subplate 2, and bottom plate 1 and subplate 2 are the metal sheet, still include the subplate 3 that sets up in the subplate 2 inboard, and the lower surface of subplate 2 is whole laminating with the upper surface of bottom plate 1, and the lower surface of subplate 3 is whole laminating with the upper surface of bottom plate 1, passes through welding material welded connection between bottom plate 1, subplate 3 and the subplate 2. The thickness of the bottom plate 1 and the auxiliary plate 2 is 3mm.
The interior of the auxiliary plate 2 is provided with a hollowed-out cutting surface 21 which is similar to the outer edge of the auxiliary plate 3 in shape, the area of the cutting surface 21 is larger than that of the auxiliary plate 3, the auxiliary plate 3 is arranged in the cutting surface 21, the outer edge of the auxiliary plate 3 is welded with the inner edge of the auxiliary plate 2 through welding materials, and the distance between the outer edge of the auxiliary plate 3 and the inner edge of the auxiliary plate 2 is equal to the plate thickness of the auxiliary plate 2.
After the middle part of the auxiliary plate 2 is hollowed out, the auxiliary plate 3 can be placed in the hollowed-out cutting surface 21, the auxiliary plate 3 and the auxiliary plate 2 are welded through welding rods or welding wires, and meanwhile, the lower surfaces of the auxiliary plate 3 and the auxiliary plate 2 are attached to the bottom plate 1.
The welding seam 4 is welded with the bottom plate 1 during welding, so that the bottom plate 1, the auxiliary plate 2 and the auxiliary plate 3 can be welded and fixed together only by welding once, materials and time are saved, the operation is convenient, and the connection and fixation between two steel plates are achieved. Meanwhile, the secondary plate 3 is elliptical, so that the shape of the hollowed-out cutting surface 21 corresponding to the secondary plate is also elliptical, and the welding material is welded and melted to form a closed loop welding line with elliptical welding lines 4 for connecting the bottom plate 1, the secondary plate 2 and the secondary plate 3.
The closed-loop welding seam has the advantages that the welding point is a starting welding point when welding is carried out, and in the welding field, the starting welding point and the welding point are weak points with easily concentrated stress, and the welding point is a starting welding point when welding is carried out, and in the utility model, only one welding point is actually carried out. There are fewer points of stress concentration and fewer defects than conventional welds. Secondly, be subplate 3 in the middle of oval closed loop welding seam, circular structure can be more stable relative rectangular structure, especially receives the exogenic action, and circular closed loop welding seam is when receiving external force in one place, can be effectual even with external force share, offset through former curved welding seam, especially set up subplate 3 in closed loop welding seam middle part.
Like an egg, when the eggshell is subjected to an overall external force, the forces in all directions can be transmitted to the surroundings through the eggshell and partially offset. If only through annular welding seam, it bears and counteracts the external force limited, and effort all acts on the welding seam, and set up the integration in annular welding seam inside with the subplate 3 that subplate 2 middle part fretwork part was filled up for the middle part of "egg" obtains certain filling, compares with the welding of fretwork, and its bear the weight of outside, decompose external stress's ability and obtain promoting greatly, tensile properties also obtains promoting, especially on the compressive properties, will be more than 10 times the former, reached the achievement that the person skilled in the art would not intend.
The welding structure of the middle secondary plate 3 is arranged, and when a tensile test is carried out, the fracture part of the welding structure is formed on the base material on the right side, so that the connection strength of the welding part is superior to that of the base material; the lower part is a traditional hollow ring welding structure, and when the tensile test is carried out, the fracture part of the welding structure is near a welding line, which indicates that the structural strength of the welding line part of the welding structure is weaker.
A circular weld with a secondary plate 3, a square weld with a secondary plate 3, and a square weld with a connecting section 24 between the secondary plate 2 and the secondary plate 3. When the tensile test is carried out, the breaking parts of the three welding structures are all parent metal parts, which indicates that the connection strength of the welding parts is stronger than that of the parent metal parts, so that the structure of the utility model has higher connection strength and better connection performance compared with the traditional welding mode, such as hollow ring welding.
Example 2
As shown in fig. 3 to 4, fig. 7, the present embodiment differs from embodiment 1 in that:
the lower surface of subplate 2 is partly laminated with the upper surface of bottom plate 1, and the lower surface of subplate 3 is whole laminated with the upper surface of bottom plate 1, passes through welding material welded connection between bottom plate 1, subplate 3 and the subplate 2. The thickness of the bottom plate 1 and the auxiliary plate 2 is 2mm.
The secondary board 3 is a sub-board of the secondary board 2, the secondary board 3 and the secondary board 2 are made of integrated materials, more than one section of cutting groove 23 is arranged between the secondary board 2 and the secondary board 3, and the secondary board 2 and the secondary board 3 are connected through a connecting section 24. The number of the cutting grooves 23 is two or more, and the shortest distance between adjacent cutting grooves 23 is 0.5 times the thickness of the sub-plate 2. The minor plate 3 is circular.
In this embodiment, the secondary board 3 and the secondary board 2 are made of an integral material, the secondary board 3 is a connecting section 24 of the secondary board 2 when being cut, and no cutting is performed between the secondary board 3 and the secondary board 2. The secondary panel 2 and the secondary panel 3 are connected together by the connecting section 24, which has the following advantages compared with the case where the secondary panel 3 is completely cut from the secondary panel 2: in the transportation process, the secondary plate 3 and the auxiliary plate 2 are transported integrally, so that the transportation is more convenient; the advantages are as follows: in the later welding process, the secondary plate 3 and the secondary plate 2 can be directly welded without positioning and butt joint, so that the welding efficiency is greatly improved; the advantages are as follows: the connecting section 24 is made of a mother material of the auxiliary plate, when the welding material is welded to the connecting section 24, after the welding material is melted, the mother material and the welding material are not fused together, so that the welding material of the melting part is arranged between the mother material of the auxiliary plate and the welding material, and the welding performance and the welding quality after the welding of the welding material and the auxiliary plate are better.
Example 3
As shown in fig. 5 and 6, this embodiment differs from embodiment 1 in that:
the auxiliary plate 2 comprises a connecting auxiliary plate 22 attached to the upper surface of the bottom plate 1 and a bending auxiliary plate 25 forming an included angle with the connecting auxiliary plate 22 after bending. If directly superimposed and connected together, the two flat steel plates correspond to a thicker steel plate, and the bending sub-plate 25 is mainly used for connection with other components or other functions.
In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.
Claims (8)
1. The utility model provides a metal sheet welded structure, includes bottom plate (1) and subplate (2), and bottom plate (1) and subplate (2) are the metal sheet, its characterized in that: the auxiliary plate (2) is characterized by further comprising a secondary plate (3) arranged in the auxiliary plate (2), wherein the lower surface of the auxiliary plate (2) is partially or completely attached to the upper surface of the bottom plate (1), the lower surface of the secondary plate (3) is completely attached to the upper surface of the bottom plate (1), and the bottom plate (1), the secondary plate (3) and the auxiliary plate (2) are connected through welding materials.
2. A sheet metal welding structure according to claim 1, characterized in that: the auxiliary plate (2) in be equipped with the cutting face (21) of the fretwork that is close with auxiliary plate (3) outer fringe shape, the area of cutting face (21) is greater than the area of auxiliary plate (3), in cutting face (21) is arranged in to auxiliary plate (3), the outer fringe of auxiliary plate (3) passes through welding material welded connection with auxiliary plate (2) inner edge, the distance between the outer fringe of auxiliary plate (3) and auxiliary plate (2) inner edge is 0.5-2 times of auxiliary plate (2) thick.
3. A sheet metal welding structure according to claim 1, characterized in that: the secondary board (3) is a sub-board of the secondary board (2), the secondary board (3) and the secondary board (2) are made of integrated materials, more than one section of cutting groove (23) is arranged between the secondary board (2) and the secondary board (3), and the secondary board (2) and the secondary board (3) are connected through a connecting section (24).
4. A sheet metal welding structure according to claim 3, characterized in that: the number of the cutting grooves (23) is more than two, and the shortest distance between every two adjacent cutting grooves (23) is 0.1-1 times of the thickness of the auxiliary plate (2).
5. A sheet metal welding structure according to claim 1, characterized in that: the welding material is welding rod or welding wire, and the welding material forms a welding line (4) for connecting the bottom plate (1), the auxiliary plate (2) and the auxiliary plate (3) after welding and melting.
6. A sheet metal welding structure according to claim 5, wherein: the welding seam (4) is a closed-loop welding seam.
7. A sheet metal welding structure according to claim 1, characterized in that: the auxiliary plate (2) comprises a connecting auxiliary plate (22) attached to the upper surface of the bottom plate (1), and a bending auxiliary plate (25) forming an included angle with the connecting auxiliary plate (22) after bending.
8. A sheet metal welding structure according to claim 1, characterized in that: the secondary plate (3) is round, elliptic, quadrilateral or triangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220901010.2U CN219053185U (en) | 2022-04-19 | 2022-04-19 | Metal plate welding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220901010.2U CN219053185U (en) | 2022-04-19 | 2022-04-19 | Metal plate welding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219053185U true CN219053185U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220901010.2U Active CN219053185U (en) | 2022-04-19 | 2022-04-19 | Metal plate welding structure |
Country Status (1)
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|---|---|
| CN (1) | CN219053185U (en) |
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2022
- 2022-04-19 CN CN202220901010.2U patent/CN219053185U/en active Active
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