Semitrailer fence structure and manufacturing method

Abstract

The invention relates to a semitrailer fence structure. The semitrailer fence structure comprises a vertical edge piece (2), a transverse edge piece (4) and a middle vertical piece (3), a middle clamping part (2.2) of the vertical edge piece (2) is connected with the middle vertical piece (3) in a sandwiched mode, notches (2.1) in the two ends of the vertical edge piece (2) are connected with thetransverse edge piece (4) in an inserted mode, and the transverse edge piece (4) is fixedly connected with the middle vertical piece (3). The semitrailer fence structure has the beneficial effects that 1, the welding amount is small, deformation is slight, and the butt welding distortion problem is solved; 2, a box-type inserting structure is adopted, so that the strength is improved, box expansion is prevented, and the cargo transportation safety of vehicles is improved; 3, robot welding is facilitated; and 4, production line production is facilitated.

Description

technical field [0001] The invention relates to the semi-trailer technology, in particular to provide a novel fence structure for the semi-trailer. Background technique [0002] At present, the general form of the fence that constitutes the warehouse-type semi-trailer is the middle vertical round tube + vertical side square tube structure, see figure 1 , the butt joint of vertical side square tube 2' and horizontal side square tube 4' is 45° angle edge I type butt joint, the welding joint of horizontal side square tube 4' and middle vertical round tube 3' is corner butt joint, fillet welding The circumference of the seam is full of welding, and the welding is distorted and deformed. The other parts are welded to the vertical square tube 2' and subjected to lateral force, and this part has low strength and is prone to permanent deformation. [0003] In this way, it causes: 1. Uneven butt joint groove, uneven welding amount, more breakdowns or bottom leaks, which affect the ...

AI Technical Summary

Problems solved by technology

The other parts are welded with the vertical side square tube 2' and subjected to lateral force. This part has low strength and is prone to permanent deformation.

[0003] In this way, it causes: 1. Uneven butt joint groove, uneven welding amount, more breakdowns or bottom leaks, which affect the structural strength; 2. Large butt joint deformation, difficulty in deformation correction, and interference friction of working parts

In this way, the structural strength is not enough, the welding is distorted and deformed, and the assembly interference is serious

In addition, such a structural form is not suitable for production line scale production and robot welding. For diagonal edge welding, it is not easy for the robot to align with the graphic edge, it is not easy to identify the graphic boundary, and it is prone to blind spots of viewing angle.

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