CN212890620U

CN212890620U - Semitrailer fence structure

Info

Publication number: CN212890620U
Application number: CN202022139325.1U
Authority: CN
Inventors: 罗公祥; 王兵; 伊淑友; 王瑞; 周惠君
Original assignee: Shandong Huayao Auto Parts Co ltd
Current assignee: Shandong Huayao Auto Parts Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-04-06
Anticipated expiration: 2030-09-25

Abstract

The invention relates to a semitrailer fence structure which comprises a vertical side piece (2), a transverse side piece (4) and a middle vertical piece (3), wherein a middle clamping part (2.2) of the vertical side piece (2) is connected with the middle vertical piece (3) in a sandwich mode, notches (2.1) at two ends of the vertical side piece (2) are connected with the transverse side piece (4) in an inserting mode, and the transverse side piece (4) is fixedly connected with the middle vertical piece (3). Has the advantages that: 1. the welding quantity is small, the deformation is slight, and the problem of butt welding distortion is solved; 2. the box type splicing structure increases the strength, prevents the box from expanding and increases the safety of goods transported by vehicles; 3. the robot welding is convenient; 4. is convenient for production line production.

Description

Semitrailer fence structure

Technical Field

The invention relates to a semi-trailer technology, in particular to a novel fence structure of a semi-trailer.

Background

The general fence form of the current fence type semi-trailer is a structure of a middle vertical round pipe and a vertical side square pipe, as shown in fig. 1, the butt joint mode of a vertical side square pipe 2 'and a transverse side square pipe 4' is 45-degree angle side I-shaped butt joint, the butt joint mode of a transverse side square pipe 4 'and a middle vertical round pipe 3' is angle butt joint, the circumference of an angle welding seam is fully welded, and welding distortion is caused. The other part is welded with the vertical side square tube 2' and then is stressed with transverse force, and the part has small strength and is easy to generate permanent deformation.

This, in turn, results in: 1. the butt joint grooves are not uniform, the welding quantity is not uniform, and the breakdown or bottom leakage condition is more, so that the structural strength is influenced; 2. the butt joint deformation is large, the deformation correction is difficult, and the working parts are subjected to interference friction. Therefore, the structural strength is not enough, the welding distortion is deformed, and the assembly interference is serious. In addition, the structure is not suitable for production line scale production and robot welding, and for diagonal edge welding, the robot is not convenient to align with the edge line of the graph, is not convenient to identify the boundary of the graph, and is easy to generate blind spots of visual angles.

Disclosure of Invention

Aiming at the defects of the existing semi-trailer fence, the invention provides the semi-trailer fence structure which is small in welding amount, slight in deformation, box-shaped in splicing and firm in structure.

The technical scheme of the invention is realized in such a way.

The utility model provides a semitrailer fence structure, includes perpendicular limit spare (2), horizontal limit spare (4), well vertical part (3), the both ends of perpendicular limit spare (2) with horizontal limit spare (4) cartridge is connected, horizontal limit spare (4) with well vertical part (3) fixed connection. The two ends of the vertical side piece (2) are connected with the transverse side piece (4) in an inserted mode, the melting welding quantity is small, deformation is reduced, and the strength is improved due to the box-type inserting structure. The vertical side pieces (2) and the transverse side pieces (4) are inserted, and in the insertion structure, two pieces are inserted/sleeved, the thickness (part thickness) of 1.0-1.5mm is increased by the surface butt joint of the two pieces before being opposite, the welding deformation is lower than that of the butt welding of the two pieces before, the structural strength is increased, the fence is prevented from deforming outwards, and the expansion-proof box structure is realized. The cross side pieces (4) are regularly connected with the middle vertical pieces (3) so as to facilitate robot welding. Therefore, the fence structure has small welding deformation and increased strength, and is suitable for production line scale production.

A fence manufacturing method comprises the steps of assembling vertical side pieces (2), horizontal side pieces (4) and middle vertical pieces (3) on a production line, conveying the assembled vertical side pieces, the horizontal side pieces (4), the middle vertical pieces (3) and the vertical side pieces (2) to a robot welding station, conveying the welded horizontal side pieces, the middle vertical pieces (3) and the vertical side pieces (2) to a next welding station, and welding a rotating shaft (1), a door knife (6) and a rod piece (5). The method comprises the specific steps that two transverse side pieces (4), a plurality of middle vertical pieces (3) and two vertical side pieces (2) are placed according to a drawing, the transverse side pieces (4) are inserted into the end parts of the vertical side pieces (2) and are inserted and combined, spot welding is carried out for fixing, and the middle vertical pieces (3) are assembled and positioned; the accompanying tool moves; the welding of the middle vertical piece (3) and the transverse side piece (4) adopts robot melting welding; then transporting to the next repair welding station, and cleaning welding slag; then transporting to the next welding station to weld the rotating shaft (1), the door knife (6) and the rod piece (5). Therefore, the robot welding assembly line is used for production, the fillet weld melting welding quantity is reduced by half, the efficiency is improved, the welding deformation is lower than that of the circumferential welding, the planeness of a weldment is less than or equal to 3mm, and the fence is flexibly opened after being assembled.

The invention has the beneficial effects that:

the butt joint mode of the transverse side piece and the vertical side piece is changed from the original I-shaped 45-degree angle side butt joint mode into a cladding type plug-in lap joint mode, so that a structure which is small in welding amount, slight in deformation, box-shaped in plug-in connection and firm in structure is obtained; the middle vertical piece is designed into an arc-shaped structure with short wings, and the structure has the advantages of 1. the welding quantity is small, the deformation is slight, and the problem of butt welding distortion and deformation is solved; 2. the box type plug-in structure increases the strength, prevents the box from expanding at the side part of the fence, and increases the safety of goods transported by vehicles; 3. the robot welding is convenient; 4. is convenient for production line production.

Drawings

The drawings and their description together with the illustrative embodiments serve to explain the invention and do not constitute an undue limitation thereof.

Fig. 1 shows a three-dimensional perspective view of the closest prior art of a semitrailer barrier structure of the present invention;

fig. 2 shows a three-dimensional perspective view (before assembly) of the semitrailer barrier structure according to the invention;

fig. 3 shows a three-dimensional perspective view (assembled) of a semitrailer barrier structure according to the invention;

FIG. 4 illustrates a vertical sided member structure according to the present invention;

FIG. 5 illustrates a mullion structure according to the present invention;

fig. 6 shows a flow chart of the manufacturing of the semitrailer fence structure according to the invention.

The novel vertical edge-type door frame comprises a rotating shaft 1, a vertical edge piece 2, a notch 2.1, a wide wing edge 2.2, a narrow wing edge 2.3, a middle vertical piece 3, a transverse edge piece 4, a rod piece 5, a door knife 6, a vertical edge square tube 2 ', a transverse edge square tube 4 ' and a middle vertical round tube 3 '.

Detailed Description

Further details and effects of the invention are explained in more detail below by means of different illustrative embodiments shown in the drawings. The embodiments described by way of example with reference to the accompanying drawings are intended to be illustrative of the invention and should not be construed as limiting the invention.

The fence structure embodiment of the invention, as shown in fig. 2 and 3, is a semitrailer fence structure, which comprises vertical side pieces (2), transverse side pieces (4) and a middle vertical piece (3), wherein two ends of each vertical side piece (2) are connected with the transverse side pieces (4) in an inserting manner, and the transverse side pieces (4) are fixedly connected with the middle vertical piece (3). The two ends of the vertical side piece (2) are connected with the transverse side piece (4) in an inserted mode, the melting welding quantity is small, deformation is reduced, and the strength is improved due to the box-type inserting structure. The vertical side pieces (2) and the transverse side pieces (4) are inserted, and in the insertion structure, two pieces are inserted/sleeved, the thickness (part thickness) of 1.0-1.5mm is increased by the surface butt joint of the two pieces before being opposite, the welding deformation is lower than that of the butt welding of the two pieces before, the structural strength is increased, the fence is prevented from deforming outwards, and the expansion-proof box structure is realized. The cross side pieces (4) are regularly connected with the middle vertical pieces (3) so as to facilitate robot welding. Therefore, the fence structure has small welding deformation and increased strength, and is suitable for production line scale production.

In another embodiment of the present invention, the standing edge member (2) is formed by bending a plate material. And (4) lofting the plate, bending the plate through an equipment die, bending the plate into a U-shaped pipe fitting with only three surfaces, wherein the middle of the U-shaped pipe fitting is a notch (2.1), two ends of the notch (2.1) are inserted and combined with the end surface of the transverse edge piece (4), and two end surfaces of the vertical edge piece (2) are aligned with the upper plane of the transverse edge piece (4). The vertical side pieces (2) and the transverse side pieces (4) are inserted, and in the insertion structure, two pieces are inserted/sleeved, the thickness (part thickness) of 1.0-1.5mm is increased by the surface butt joint of the two pieces before being opposite, the welding deformation is lower than that of the butt welding of the two pieces before, the structural strength is increased, the fence is prevented from deforming outwards, and the expansion-proof box structure is realized.

On the basis of the above embodiment, according to another embodiment of the present invention, the vertical side member (2) is a three-sided U-shaped pipe bent from a plate, two folded edges are one wide and one narrow, and are respectively called a wide wing edge (2.2) and a narrow wing edge (2.3), as shown in fig. 4, the two ends of the notch (2.1) of the vertical side member (2) of the wide wing edge and narrow wing edge structure are inserted and combined with the end surfaces of the transverse side member (4), and the two end surfaces of the vertical side member (2) are aligned with the upper plane of the transverse side member (4). When the end faces of the vertical side piece (2) and the transverse side piece (4) are inserted and combined, the wide wing edge of the vertical side piece (2) is arranged outside, the narrow wing edge is arranged inside, and the vertical side piece and the transverse side piece are clamped in a cladding mode, so that the plate thickness of the part is doubled, the strength is enhanced, and the box is not easy to expand.

On the basis of the above embodiment, in another embodiment of the present invention, the wide wing edge of the vertical member (2) has a gap in the middle, see fig. 4, and the length of the gap is not greater than the length of the middle vertical member (3). The middle part of the wide flange of the vertical side piece (2) is provided with a notch, so that the weight is reduced, only two ends of the vertical side piece (2) are provided with the wide flanges, the strength of the plug-in combination with the end face of the transverse side piece (4) is enhanced, the cladding type clamping is realized, the plate thickness of the part is doubled, the strength is enhanced, the expansion prevention box is realized, and the appearance is increased to be attractive.

On the basis of the above embodiment, according to another embodiment of the present invention, the rotating shaft (1) and the door vane (6) are welded to the outer side of the end of the vertical side member (2), as shown in fig. 3. Thus, the connecting piece is convenient to connect with other pieces.

In another embodiment of the present invention, the cross member (4) is a square steel pipe. The square steel pipe is made of high-strength steel, so that the strength is increased.

On the basis of the embodiment, in another embodiment of the invention, a notch with the length equal to that of the end face of the middle vertical piece (3) is formed in the inner side face of the transverse side piece (4) at the position corresponding to the middle vertical piece (3). A suitable breach is opened to horizontal limit spare (4) medial surface, and well vertical (3) press from both sides tightly wherein, so, convenient with well vertical (3) cartridge is fixed, the artifical location of being convenient for, and the frock location of also being convenient for, the line welding is produced to the robot of being convenient for, raises the efficiency.

On the basis of the above embodiment, in another embodiment of the present invention, the middle vertical member (3) is a square steel pipe, a vertical corrugated board, a horizontal corrugated board or a flat plate. The transverse side pieces (4) are connected with the square steel pipes or the vertical corrugated plates or the transverse corrugated plates or the flat plates of the middle vertical pieces (3) in a welding mode.

On the basis of the above embodiment, in another embodiment of the present invention, the number of the middle vertical pieces (3) of the square pipe, the vertical corrugated board, the horizontal corrugated board or the flat board is at least one. The square steel pipe or the vertical corrugated board or the horizontal corrugated board or the flat board of the middle vertical piece (3) which is connected with the horizontal side piece (4) in a welding way is at least one piece or can be multiple pieces so as to meet the requirement of a cargo box of goods.

On the basis of the above embodiment, according to another embodiment of the invention, the cross section of the middle vertical piece (3) of the square pipe is designed to be a semicircular structure (3.2) and a short wing structure (3.1). Referring to fig. 5, the cross-sectional shape is designed into a semicircular short wing structure, so that the longitudinal tensile force is increased. The welding process of the middle vertical part (3) and the transverse side part (4) is simple and convenient, the middle vertical part (3) is positioned in the assembly and then moves along with the tool, and the welding of the middle vertical part (3) and the transverse side part (4) is performed by adopting a robot to melt and weld. Therefore, the method is suitable for robot welding assembly line production, the fillet weld melting welding quantity is reduced by half, the efficiency is improved, the welding deformation is lower than that of circumferential welding, and the flatness of a weldment is less than or equal to 3 mm.

On the basis of the above embodiment, according to another embodiment of the invention, as shown in fig. 2 and 3, the cross side piece (4) is a square pipe, the vertical side piece (2) is a bent piece and is provided with a wide wing edge (2.2) and a narrow wing edge (2.3), the middle vertical piece (3) is a semicircular pipe, the notch (2.1) of the vertical side piece (2) is inserted and combined with the cross side piece (4), two end faces of the vertical side piece (2) are aligned with the upper plane of the cross side piece (4), the wide wing edge (2.2) of the vertical side piece (2) is arranged outside, the narrow wing edge (2.3) is arranged inside, and the vertical side piece is clamped in a cladding mode, so that the plate thickness of the part is doubled, the strength is enhanced, and the box is not easy to expand. The box-type splicing structure has the advantages that the two pipes are inserted/sleeved, the thickness (the thickness of pipe parts) of the two pipes is increased by 1.0-1.5mm relative to the butt joint of the surfaces of the two pipes, the welding deformation is lower than that of the butt joint welding of the two pipes, the structural strength is increased, the fence is prevented from deforming outwards, and the box-type splicing structure is prevented from expanding. The transverse side pieces (4) are regularly connected with the tube plates of the middle vertical pieces (3), so that the welding by a robot is convenient. Therefore, the fence structure is small in welding deformation, high in strength and suitable for production line scale production and robot welding assembly line production. The fillet weld melting welding quantity is reduced by half, and the efficiency is improved. The welding deformation is lower than that of the circumferential welding. The flatness of the weldment is less than or equal to 3 mm. The opening is flexible after the assembly. The notch of perpendicular limit piece (2), the arc wall structure of well perpendicular piece (3), the electrophoresis liquid does not accumulate liquid, and the levelling effect is better, and the drip is faster, and long-pending chain operation work piece of putting saves 6 seconds every. The electrostatic powder adsorption quantity of the slot opening is uniform when the powder is sprayed.

According to the embodiment of the fence structure manufacturing method, as shown in fig. 6, in a production line, the vertical side pieces (2) and the transverse side pieces (4) are inserted into the middle vertical pieces (3) to be assembled and transported to a robot welding station, the transverse side pieces (4), the middle vertical pieces (3) and the vertical side pieces (2) are welded and then transported to a next welding station, and the rotating shaft (1), the door knife (6) and the rod piece (5) are welded. The method comprises the specific steps that according to a figure 6, two transverse side pieces (4), a plurality of middle vertical pieces (3) and two vertical side pieces (2) are placed according to the figure, the transverse side pieces (4) are inserted into the end parts of the vertical side pieces (2) to be inserted and combined, spot welding is carried out for fixing, and the middle vertical pieces (3) are assembled and positioned; the accompanying tool moves; the welding of the middle vertical piece (3) and the transverse side piece (4) adopts robot melting welding; then transporting to the next repair welding station, and cleaning welding slag; then transporting to the next welding station to weld the rotating shaft (1), the door knife (6) and the rod piece (5). Therefore, the robot welding assembly line is used for production, the fillet weld melting welding quantity is reduced by half, the efficiency is improved, the welding deformation is lower than that of the circumferential welding, the planeness of a weldment is less than or equal to 3mm, and the fence is flexibly opened after being assembled.

On the basis of the above embodiment, in another embodiment of the invention, in the fence manufacturing method, sensors are arranged at the positions of the robot welding equipment and the production line station nodes, and the sensors transmit equipment operation data and station process condition (displacement, pressure, force, vibration and the like) data to the control system. Therefore, the statistical analysis of the information is convenient, and a basis is brought for improving the process parameters.

On the basis of the above embodiment, in another embodiment of the invention, the sensor information is transmitted to the internet of things, and the internet of things is interconnected with the control system and the cloud platform to realize the remote monitoring.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications may be made, and the specific features, structures, materials or characteristics described may be combined in any one or more of the embodiments or examples in a suitable manner, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in any particular way, but rather, as long as there is no contradiction between these combinations of features, the scope of the present invention should be considered as being covered by the present specification. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a semitrailer fence structure, its characterized in that includes vertical side spare (2), horizontal side spare (4), well vertical (3), the both ends of vertical side spare (2) with horizontal side spare (4) cartridge is connected, horizontal side spare (4) with well vertical (3) fixed connection.

2. A semitrailer fence structure according to claim 1, characterised in that the stile elements (2) are bent from sheet material.

3. A semitrailer fence structure as claimed in claim 2, characterized in that the upright member (2) is a U-shaped tube bent from sheet material, and the two folded edges are unequal in width.

4. A semitrailer fence structure according to claim 3, characterised in that the upright (2) is flanged wide and notched in the middle.

5. A semitrailer fence structure according to claim 1, characterised in that the inner side of the cross member (4) is notched at a position corresponding to the central upright (3) by a length equal to the end face of the central upright (3).

6. A semitrailer fence structure according to claim 1, characterised in that the central upright (3) is a square steel tube, a vertical corrugated board, a transverse corrugated board or a flat plate.

7. A semitrailer fence structure according to claim 6, characterised in that the number of said upstands (3) is at least one.

8. A semitrailer fence structure according to claim 6, characterized in that the cross-sectional shape of the square steel tube middle vertical member (3) is designed into a semicircular (3.2) plus short wing structure (3.1).