Splicing and welding tool of car body truss structure

Abstract

The invention discloses a splicing and welding tool of a car body truss structure, and relates to the technical field of truss splicing tools. The splicing and welding tool comprises a car tail assembly tool, a chassis splicing tool and a car head assembly tool, wherein a car tail support column and a truss support column are arranged on the upper surface of the car tail assembly tool, a connecting column is arranged on one side surface of the car tail assembly tool, the chassis splicing tool is installed on one side surface of the connecting column, and a cross beam support frame is arrangedon the upper surface of the car head assembly tool. According to the splicing and welding tool, the sealing end of a car body is formed into a team, so that the implementation of the process is increased; a fixture structure is optimized, so that a fixture can meet the truss body welding technical requirements; a sliding plate is additionally installed so as to control and position key dimensions,so that the welding consistency is increased, and the quality problem caused by welding is reduced; and the fixture combination is diversified and modularized, so that the combined welding of all positions of the truss body is satisfied, the piece assembly time is shortened, and the welding quality of the truss body and the welding speed are obviously increased.

Description

technical field [0001] The invention belongs to the technical field of truss splicing tooling, in particular to a body truss structure tailor welding tooling. Background technique [0002] With the development of science and technology and the application of computer software technology, it has become a reality to apply relevant software to optimize the truss structure model. The truss in the truss structure refers to the truss beam, which is a latticed beam structure. It is mostly used in public buildings such as factory buildings and bridges. It is abstracted and simplified by some engineering structures whose poles and axes intersect at one point. Reasonable design of the truss structure can maximize the use of the strength of the material, reduce the weight of the truss, and save materials. With the development of the automotive industry for energy saving and emission reduction, truss structure body is more and more widely used in the automotive field . [0003] The c...

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Problems solved by technology

[0003] The company is basically blank in the research and development of the existing truss structure body. There is no relevant data and technical support. Only through continuous computer simulation, simple tooling and fixture experiments are made. Mainly, through the reasonable arrangement of the upper and lower chords and webs, it can adapt to the distribution of bending moments and shear forces inside the structure. Due to the horizontal tension and compression internal forces to achieve self-balance, the entire structure does not generate horizontal thrust on the support. The truss structure and Compared with the common solid web beam structure, in terms of bending resistance, the tension and pressure can be concentrated on the upper and lower ends, and the internal moment arm is increased, so that the same amount of material can be used to achieve greater bending strength. It belongs to the experimental stage. Although the tensile and compressive properties of the truss structure have been realized, there are great defects in the structure and cannot be applied to the production of vehicle skeletons. In order to solve the above problems, an effective solution for the tailor-welded tooling of the truss structure of the car body is now designed. The welding speed and quality of the truss structure body, the rationality of the production process of the truss structure in the production process, the advanced nature of the welding method, followed by the sealing and pairing of the truss structure, the rationality of the welding and anti-deformation process technology, and the key The welding of the size is reasonable, and the anti-deformation fixture tooling of the truss structure meets the required technical requirements

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