CN115091009A

CN115091009A - Self-align welded structure and vehicle

Info

Publication number: CN115091009A
Application number: CN202210906290.0A
Authority: CN
Inventors: 冯薇丽; 宋玉斌; 李臻辉; 李廷才; 赵庆福; 胡福星; 邹怡
Original assignee: Dongfeng Trucks Co ltd
Current assignee: Dongfeng Trucks Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-09-23
Anticipated expiration: 2042-07-29
Also published as: CN115091009B

Abstract

The invention relates to a self-positioning welded structure, comprising: at least two beams; the connecting joint is used for being welded on the two beam bodies; and the positioning hook is arranged on the connecting joint, and the connecting joint is positioned in the positioning square holes of the two beam bodies through the positioning hook and limits the relative movement of the two beam bodies. Before the beam body is welded, the positioning hook is hung on the positioning square hole of the beam body to be connected, the hook is used for limiting the freedom degree of the beam body, the beam body is fixed, then welding is carried out, the positioning step is saved, and the welding method is convenient and fast.

Description

Self-align welded structure and vehicle

Technical Field

The invention relates to the field of automobile part assembly, in particular to a self-positioning welding structure and a vehicle.

Background

At present, in the welding process of beams, positioning needs to be carried out firstly, in the related technology, a bolt positioning mode is mostly adopted, workers need to take fastening tools firstly to tighten bolts, then welding is carried out by adopting a double-oxidation arc welding tool, the operation steps are complex, and the time consumption is long.

Disclosure of Invention

The embodiment of the invention provides a self-positioning welding structure and a vehicle, and aims to solve the problems that the operation steps are complicated and the time consumption is long when bolts are used for positioning in the related technology.

In a first aspect, a self-positioning welded structure is provided, comprising: at least two beams; the connecting joint is used for being welded on the two beam bodies; and the positioning hook is arranged on the connecting joint, and the connecting joint is positioned in the positioning square holes of the two beam bodies through the positioning hook and limits the relative movement of the two beam bodies.

In some embodiments, the connection joint comprises: a main body bracket mounted to a first side surface of the beam body; and the auxiliary bracket is arranged on the second side surface of the beam body and is connected with the main body bracket.

In some embodiments, the first side is perpendicular to the second side.

In some embodiments, the accessory bracket comprises: a first segment positioned at the second side; a second section perpendicular to the first section, the second section being connected with the main body bracket.

In some embodiments, a fixing hook is arranged on one side of the second section, the fixing hook is bent from a joint of the fixing hook and the second section to one side close to the main body support, a positioning notch matched with the fixing hook is formed in the main body support, and the fixing hook is positioned in the positioning notch.

In some embodiments, the length of the securing catch is greater than the length of the positioning notch.

In some embodiments, the main body bracket has a connecting portion for welding to a third side surface of the beam body, and the third side surface and the second side surface are respectively located at two opposite sides of the beam body.

In some embodiments, the positioning hook is in a sheet shape and is formed by bending a plate surface of the connecting joint towards one side.

In some embodiments, the positioning hooks include first and second hooks disposed at opposite ends of the main body support, the first hooks being perpendicular to the second hooks.

In a second aspect, a vehicle is provided that includes any of the self-positioning welded structures described above.

The technical scheme provided by the invention has the beneficial effects that:

the embodiment of the invention provides a self-positioning welding structure and a vehicle.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a self-positioning welding structure according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of another embodiment of a self-positioning welded structure according to the present invention;

FIG. 3 is a schematic diagram illustrating a disassembled structure of a self-positioning welded structure according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a main body support of a self-positioning welding structure according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an auxiliary support of a self-positioning welded structure according to an embodiment of the present invention.

Reference numbers in the figures:

1. a beam body; 11. a first side; 12. a second side surface; 13. a third side; 14. a first beam body; 15. a second beam body;

2. connecting a joint; 21. a main body support; 211. positioning the notch; 212. a connecting portion; 22. an auxiliary support; 221. a first segment; 222. a second section; 223. fixing the hook;

3. positioning the hook; 31. a first hook; 32. and a second hook.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The embodiment of the invention provides a self-positioning welding structure and a vehicle, which can solve the problems of complicated operation steps and long time consumption in positioning by using bolts in the related art.

Referring to fig. 1, a self-positioning welding structure according to an embodiment of the present invention may include: at least two beam bodies 1; the connecting joint 2 is used for being welded on the two beam bodies 1; and the positioning hook 3 is arranged on the connecting joint 2, and the connecting joint 2 is positioned in the positioning square holes of the two beam bodies 1 through the positioning hook 3 and limits the relative movement of the two beam bodies 1.

In this embodiment, a certain angle can be formed between the two beam bodies 1, the connecting joint 2 is sheet-shaped and is in a shape adapted to the angle between the two beam bodies 1, the size of the positioning hook 3 is smaller than that of the positioning square hole of the beam body 1, and the positioning hook 3 can be penetrated through the positioning square hole. Because the traditional method for positioning the bolts needs to take a fastening tool firstly and then take the bolts, the bolts are fastened by using the fastening tool, then a welding tool for welding by using the arc welding dioxide is adopted, the operation steps are more, and the time delay is longer, in the embodiment, before the beam body 1 is welded, the positioning hook 3 is directly hung on the positioning square hole of the beam body 1 needing to be connected, the freedom degree of the beam body 1 is limited by using the positioning hook 3, the connecting joint 2 is attached to the side surfaces of the two beam bodies 1, after the beam body 1 is positioned, the two ends of the connecting joint 2 can be welded on the two beam bodies 1 respectively, the fixing effect is achieved, then the welding can be performed between the two beam bodies 1, the positioning step is saved, and the method is convenient and fast. The positioning square holes on the beam bodies 1 can be originally square holes, or specially square holes punched for the positioning hooks 3, or round holes, or holes with other shapes, at least two positioning hooks 3 are arranged on the two beam bodies 1 respectively, and the number of the beam bodies 1 can be two, or 3, or multiple.

Referring to fig. 1, in some embodiments, the connection joint 2 may include: a main body bracket 21 attached to the first side surface 11 of the beam body 1; and an auxiliary bracket 22 mounted to the second side surface 12 of the beam body 1, wherein the auxiliary bracket 22 is connected to the main body bracket 21.

In this embodiment, the beam 1 includes a first beam 14 and a second beam 15, the first beam 14 and the second beam 15 are both square columns, the first beam 14 and the second beam 15 each have six faces, which are respectively a front face and a rear face along a Y-axis direction, a left side and a right side along an X-axis direction, and a top and a bottom along a Z-axis direction, the first side face 11 may be the same face or different faces of the first beam 14 and the second beam 15, in this embodiment, two ends of the main body bracket 21 are respectively mounted on the same face of the first beam 14 and the second beam 15, and have a limiting effect in two directions on the beam 1, and the auxiliary bracket 22 is mounted on the other face of the first beam 14 and/or the second beam 15 and has a limiting effect in the other direction on the beam 1.

One is that both ends of the main body bracket 21 are respectively mounted on the same surface of the first beam 14 and the second beam 15. In some alternative embodiments, when the body bracket 21 is mounted to the front or rear of the first and

second beams

14 and 15, the positioning hook 3 can limit the left, right and up and down directions of the first beam body 14 and the second beam body 15, limit the relative movement of the first beam body 14 and the second beam body 15 in the left, right and up and down directions, because the positioning hook 3 is arranged in the positioning square hole in a penetrating way, the positioning hook 3 can move in the positioning square hole along the front-back direction, therefore, the first beam 14 and the second beam 15 cannot be limited in the front-rear direction, and therefore, the auxiliary bracket 22 is mounted on the second side 12 of the first beam 14 and the second beam 15, the second side 12 can be the top, the bottom, the left side or the right side of the first beam 14 and the second beam 15, so that the first beam 14 and the second beam 15 can be limited in the front-rear direction by the auxiliary bracket 22; when the main body support 21 is installed at the top or bottom of the first beam 14 and the second beam 15, the positioning hook 3 can limit the left and right and front and back directions of the first beam 14 and the second beam 15, so as to limit the left and right and front and back directions of the first beam 14 and the second beam 15, and because the positioning hook 3 can move up and down in the positioning square hole, the first beam 14 and the second beam 15 cannot be limited up and down, so the auxiliary support 22 is used to be installed at the second side 12 of the first beam 14 and the second beam 15, the second side 12 can be the front, back, left side or right side of the first beam 14 and the second beam 15, so that the first beam 14 and the second beam 15 can be limited up and down by the auxiliary support 22; when the main body bracket 21 is installed on the left and right sides of the first and second beam bodies 14 and 15 (where the left and right sides refer to the sides where the first and

second beam bodies

14 and 15 are close to each other, that is, the right side of the first beam body 14 and the left side of the second beam body 15), the positioning hooks 3 can limit the first and

second beam bodies

14 and 15 in the up-down and front-back directions, and limit the relative movement of the first and

second beam bodies

14 and 15 in the up-down and front-back directions, because the positioning hooks 3 can move in the left-right direction in the positioning square holes, therefore, the first beam 14 and the second beam 15 cannot be limited in the left-right direction, and therefore, the auxiliary bracket 22 is mounted on the second side surface 12 of the first beam 14 and the second beam 15, the second side surface 12 can be the front, the back, the top or the bottom of the first beam 14 and the second beam 15, so that the first beam 14 and the second beam 15 can be restrained in the left-right direction by the auxiliary bracket 22. In a word, the main body support 21 plays a main role in limiting the two beam bodies 1 in one or more directions, the auxiliary support 22 plays an auxiliary role in limiting the two beam bodies 1 in the direction in which the main body support 21 cannot be limited, and the main body support 21 and the auxiliary support 22 are matched to limit the two beam bodies 1 in each direction, so that the two beam bodies 1 are prevented from moving relatively, and subsequent welding is facilitated.

The other is that two ends of the main body support 21 are respectively installed on different surfaces of the first beam 14 and the second beam 15, the main body support 21 can only limit the first beam 14 and the second beam 15 in one or two directions, and the auxiliary support 22 needs to be used for further limiting, which is not described herein.

The main body support 21 and the auxiliary support 22 are preferably in a sheet shape attached to the beam body 1, so that welding is facilitated, and the main body support and the auxiliary support can be in other shapes and can be determined according to the position to be positioned as required. The auxiliary support 22 may be mounted on one of the first beam 14 and the second beam 15, or may be mounted on both the first beam 14 and the second beam 15, preferably on one of the first beam 14 and the second beam 15. And because main part support 21 only simply wears to locate in the location square hole through location couple 3, has the risk of deviating from in the location square hole, consequently is connected auxiliary stand 22 and main part support 21, also can carry on spacingly to main part support 21 when spacing to roof beam body 1.

During the installation, install main part support 21 in one side of roof beam body 1 earlier, install auxiliary stand 22 in the opposite side of roof beam body 1 again, utilize main part support 21 and auxiliary stand 22's cooperation to carry on spacingly to roof beam body 1 on all directions, then be connected auxiliary stand 22 and main part support 21, it is spacing to carry out main part support 21, main part support 21 and auxiliary stand 22 simple structure, easily take shape, low cost, install through dividing attach fitting 2 into main part support 21 and auxiliary stand 22 two parts, can adapt to the angle between two roof beam bodies 1, make attach fitting 2 have the commonality, split complicated shape into simple two, it is also more convenient when installing to roof beam body 1.

Referring to fig. 1 and 2, in some embodiments, the first side 11 is perpendicular to the second side 12.

In this embodiment, the main body support 21 is installed in the first side 11, and the auxiliary support 22 is installed in the second side 12, and the main body support 21 is connected with the auxiliary support 22, and the first side 11 is perpendicular to the second side 12 for can form a right angle between the main body support 21 and the auxiliary support 22, with the roof beam body 1 be positioned in this right angle, can be better carry on spacingly to two roof beam bodies 1 in front and back, left and right and up and down direction.

In some alternative embodiments, when the main body bracket 21 is installed in front of or behind the first and

second beam bodies

14 and 15, the auxiliary bracket 22 may be installed at one or more positions of left, right, top, or bottom of the first and

second beam bodies

14 and 15; when the main body brackets 21 are installed at the left and right sides of the first and

second girder bodies

14 and 15, the auxiliary brackets 22 may be installed at one or more positions of the front, rear, top or bottom of the first and

second girder bodies

14 and 15; when the main body bracket 21 is installed at the top and bottom of the first and

second beams

14 and 15, the auxiliary bracket 22 may be installed at one or several positions of the front, rear, left and right sides of the first and

second beams

14 and 15.

Referring to fig. 5, in some embodiments, the auxiliary support 22 may include: a first segment 221 positioned at said second side 12; a second section 222 perpendicular to the first section 221, the second section 222 being connected to the main body bracket 21.

In this embodiment, the first segment 221 is attached to the second side surface 12, the second segment 222 is perpendicular to the first segment 221, and the second segment is attached to one side of the main body support 21, after the beam body 1 is positioned by using the main body support 21 and the auxiliary support 22, the first segment 221 and the second side surface 12 can be welded, and the second segment 222 and the main body support 21 are welded, so that the main body support 21, the auxiliary support 22 and the beam body 1 are welded into a whole, the connection strength of the beam body 1 is ensured, and the stability of the beam body 1 is maintained.

Referring to fig. 1 and 5, in some embodiments, a fixing hook 223 may be disposed on one side of the second section 222, the fixing hook 223 is bent from a connection with the second section 222 to a side close to the main body support 21, a positioning notch 211 matched with the fixing hook 223 is disposed on the main body support 21, and the fixing hook 223 is positioned in the positioning notch 211.

In this embodiment, a fixing hook 223 is disposed on one side of the second segment 222, the fixing hook 223 may be disposed on one side of the second segment 222 close to the main body support 21, or may be disposed on another side of the second segment 222, the fixing hook 223 is bent from a connection with the second segment 222 to one side close to the main body support 21, a positioning notch 211 matched with the fixing hook 223 is disposed on the main body support 21, and the fixing hook 223 is positioned in the positioning notch 211, so that the second segment 222 may be connected with the main body support 21. After installing main part support 21 to two roof beams 1, because main part support 21 is fixed a position in the location square hole of roof beam 1 through location couple 3, main part support 21 probably has the risk of deviating from along the axis direction in location square hole, can make main part support 21 lose the positioning action to roof beam 1, consequently, establish fixed couple 223 in one side of second subsection 222, establish on main part support 21 with fixed couple 223 assorted location breach 211, fixed couple 223 can be positioned in location breach 211 to utilize auxiliary stand 22 to play limiting displacement to main part support 21, prevent that main part support 21 from deviating from by in the location square hole, make main part support 21 keep the location to roof beam 1.

In some alternative embodiments, when the main body support 21 is installed in front of or behind the first beam 14 and the second beam 15, the fixing hook 223 of the auxiliary support 22 is bent forward or backward from the connection with the second section 222 and is snapped into the positioning notch 211 on the main body support 21, so as to limit the forward or backward movement of the main body support 21; when the main body support 21 is installed at the left and right sides of the first beam body 14 and the second beam body 15, the fixing hooks 223 of the auxiliary support 22 are bent from the connection part with the second section 222 to the left or right side and are clamped in the positioning notches 211 on the main body support 21, so that the main body support 21 is limited to move to the left or right side; when the main body support 21 is installed on the top and bottom of the first beam 14 and the second beam 15, the fixing hooks 223 of the auxiliary support 22 are bent upward or downward from the connection with the second segment 222 and are engaged in the positioning notches 211 of the main body support 21, thereby restricting the upward or downward movement of the main body support 21.

Since the plate surface of the second segment 222 is subsequently welded to the main body frame 21, it is preferable that the fixing hook 223 is provided at the upper end of the second segment 222 and the positioning notch 211 is provided at the upper end of the main body frame 21. In other embodiments, the fixing hook 223 may be disposed at the lower end, the left side, or the right side of the second segment 222, or may be disposed on the plate surface of the second segment 222, and the positioning notch 211 may be disposed at the lower end, the left side, or the right side of the main body bracket 21, or may be disposed on the plate surface of the main body bracket 21.

Referring to fig. 1, 4 and 5, in some embodiments, the length of the fixing hook 223 may be greater than the length of the positioning notch 211.

In this embodiment, the positioning notch 211 is located at a connection position of the fixing hook 223 and the second segment 222, the fixing hook 223 and the second segment 222 are respectively located at two sides of the positioning notch 211, the length of the fixing hook 223 is greater than that of the positioning notch 211, the fixing hook 223 cannot move in the positioning notch 211, the fixing hook 223 can be limited between the fixing hook 223 and the second segment 222, the fixing hook 223 is prevented from being separated from the positioning notch 211, and the main body support 21 and the auxiliary support 22 are connected more firmly.

During installation, the main body support 21 is installed on the beam body 1, the auxiliary support 22 is installed on the beam body 1 from top to bottom, the fixing hook 223 enters from the upper side of the positioning notch 211, and then the fixing hook is limited in the positioning notch 211.

In other embodiments, the auxiliary bracket 22 may be connected to the main bracket 21 through other structures, for example, a groove may be disposed on the main bracket 21, a protrusion corresponding to the groove may be disposed on the auxiliary bracket 22, and the auxiliary bracket 22 may be connected to the main bracket 21 by using the clamping action of the groove and the protrusion; the main body holder 21 and the auxiliary holder 22 may be held by a holding mechanism; other limiting structures may be provided on the beam 1 to limit the main body bracket 21.

Referring to fig. 4, in some embodiments, the main body bracket 21 may have a connection part 212, the connection part 212 being adapted to be welded to a third side 13 of the beam body 1, the third side 13 and the second side 12 being respectively located at opposite sides of the beam body 1.

In this embodiment, the main body bracket 21 has the connecting portion 212, the shape of the connecting portion 212 matches the shape of the beam body 1, the connecting portion 212 is used to be welded to the third side 13 of the beam body 1, so as to further increase the connection strength between the main body bracket 21 and the beam body 1, the connecting portion 212 may be disposed at the lower end of the main body bracket 21, at the upper end, the left end, or the right end, or on the plate surface of the main body bracket 21, and the connecting portion 212 may be welded to the side of the beam body 1 opposite to the second side 12, or at another position of the beam body 1.

When the beam body 1 has three or more, can use attach fitting 2 earlier to fix a position two of them roof beam body 1, weld connecting portion 212 and third roof beam body 1, then weld two roof beam bodies 1 to the location again, also can directly utilize attach fitting 2 to fix a position three roof beam body 1 simultaneously, then weld three roof beam body 1 again. As many beam bodies 1 are provided, the connecting joints 2 need to be provided with positioning hooks 3 with the number not less than that of the beam bodies 1.

Referring to fig. 1, in some embodiments, the positioning hook 3 may be formed in a sheet shape and bent from a plate surface of the connection joint 2 toward one side.

In this embodiment, location couple 3 is formed to a lateral buckling by the face of attach fitting 2, simple manufacture, and is efficient, low cost, and location couple 3 is the slice, and the width slightly is less than the width in location square hole for the both sides of location couple can just be the joint on the both sides inner wall in location square hole, thereby play the effect of location to the roof beam body 1. During installation, the positioning hook 3 is aligned to the positioning square hole, and then the connecting joint 2 is pushed inwards along the axis of the positioning square hole until the positioning hook 3 completely enters the positioning square hole.

In other embodiments, the connecting joint 2 may also limit the beam body 1 by using other structures, for example, a column with a size similar to that of a bolt may be arranged on the connecting joint 2, a wedge block may also be arranged, an L-shaped or T-shaped clip sheet or clip column may also be arranged, or a rubber body.

Referring to fig. 4, in some embodiments, the positioning hooks 3 may include a first hook 31 and a second hook 32 disposed at opposite ends of the main body support 21, and the first hook 31 is perpendicular to the second hook 32.

In this embodiment, the first hook 31 and the second hook 32 are both formed by bending the plate surface of the connection joint 2 to one side, and if the first hook 31 and the second hook 32 are in the same plane or parallel to each other, the first hook 31 and the second hook 32 can only limit the beam body 1 in one direction, that is, in the direction perpendicular to the plate surfaces of the first hook 31 and the second hook 32, it is necessary to provide two or more auxiliary supports 22 to limit the beam body 1 in all directions, therefore, the direction of the first hook 31 and the second hook 32 is set such that the plate surface of the first hook 31 is perpendicular to the plate surface of the second hook 32, so that the beam body 1 can be limited in one direction by the first hook 31, the beam body 1 is limited in the direction perpendicular to the first hook by the second hook 32, and then the auxiliary supports 22 are used to limit the beam body 1 in three directions, simple structure, simple to operate, it is effectual.

In some optional embodiments, if the plate surface of the first hook 31 is horizontally disposed, two sides of the first hook 31 may abut against left and right sides of the positioning square hole, that is, the first hook 31 may limit the beam body 1 in the left-right direction, the plate surface of the second hook 32 may be vertically disposed, two sides of the second hook 32 may abut against upper and lower sides of the positioning square hole, and the beam body 1 may be limited in the upper-lower direction; if the plate surface of the first hook 31 is vertically arranged, the two sides of the first hook 31 can abut against the upper side and the lower side of the positioning square hole, that is, the first hook 31 can limit the beam body 1 in the upper and lower directions, the plate surface of the second hook 32 can be horizontally arranged, the two sides of the second hook 32 can abut against the left side and the right side of the positioning square hole, and the beam body 1 can be limited in the left and right directions; utilize first couple 31 and second couple 32 to restrict the back to the roof beam body 1 about with upper and lower direction, auxiliary stand 22 only need restrict roof beam body 1 in the front rear direction, therefore the third couple on the auxiliary stand 22 is vertical setting, and both sides of third couple are supported in the front and back both sides in the location square hole, can carry on spacingly to roof beam body 1 in the front rear direction.

In other embodiments, the first hook 31, the second hook 32 and the third hook may be arranged in other directions, for example, a southwest direction or a southeast direction.

Embodiments of the present invention further provide a vehicle, which may include any one of the self-positioning welding structures, and the vehicle may implement any one of the embodiments of the self-positioning welding structure.

The principle of the self-positioning welding structure provided by the embodiment of the invention is as follows:

through increase location structure on attach fitting 2's part, also utilize self material to buckle out location couple 3 promptly, attach fitting 2 during the welding, hang location couple 3 on the location square hole of the roof beam body 1 that needs to connect, main part support 21 restricts the freedom of roof beam body 1 left and right sides and upper and lower direction, auxiliary stand 22 restricts the freedom of roof beam body 1 front and back direction, even roof beam body 1 can be fixed, then weld, original three step closes into one step, and the time is saved, and is convenient and fast.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-positioning welded structure, comprising:

at least two beams (1);

a connecting joint (2) for welding to the two beams (1);

and the positioning hook (3) is arranged on the connecting joint (2), and the connecting joint (2) is positioned in the positioning square holes of the two beam bodies (1) through the positioning hook (3) and limits the relative movement of the two beam bodies (1).

2. The self-positioning welded structure according to claim 1, characterized in that said connection joint (2) comprises:

a main body bracket (21) attached to the first side surface (11) of the beam body (1);

and the auxiliary support (22) is arranged on the second side surface (12) of the beam body (1), and the auxiliary support (22) is connected with the main body support (21).

3. The self-positioning welded structure of claim 2, wherein:

the first side (11) is perpendicular to the second side (12).

4. The self-positioning welded structure according to claim 3, characterized in that said auxiliary support (22) comprises:

a first segment (221) positioned at the second side (12);

a second section (222) perpendicular to the first section (221), the second section (222) being connected with the body bracket (21).

5. The self-positioning welded structure of claim 4, wherein:

one side of second subsection (222) is equipped with fixed couple (223), fixed couple (223) from with the junction of second subsection (222) is to being close to the one side bending of main part support (21), be equipped with on main part support (21) with fixed couple (223) assorted location breach (211), fixed couple (223) are located in location breach (211).

6. The self-positioning welded structure of claim 5, wherein:

the length of the fixing hook (223) is larger than that of the positioning notch (211).

7. The self-positioning welded structure of claim 2, wherein:

the main body support (21) is provided with a connecting part (212), the connecting part (212) is used for being welded to a third side surface (13) of the beam body (1), and the third side surface (13) and the second side surface (12) are respectively positioned on two opposite sides of the beam body (1).

8. The self-positioning welded structure of claim 2, wherein:

the positioning hook (3) comprises a first hook (31) and a second hook (32) which are arranged at two opposite ends of the main body support (21), and the first hook (31) is perpendicular to the second hook (32).

9. The self-positioning welded structure of claim 1, wherein:

the positioning hook (3) is sheet-shaped and is formed by bending the plate surface of the connecting joint (2) towards one side.

10. A vehicle, characterized in that it comprises a self-positioning welded structure according to any one of claims 1 to 9.