Tailored Welding Tooling and Technology of Overturning Frame Assembly of Hook Arm Cart

Abstract

The invention relates to a hook arm car roll-over stand assembly tailor-welding tool. The hook arm car roll-over stand assembly tailor-welding tool comprises a tool platform, a positioning assembly A,a positioning assembly B and a positioning assembly C, each positioning assembly comprises a cross beam bottom support assembly, a swinging arm shaft sleeve positioning assembly, a turnover shaft sleeve positioning assembly and a guide wheel shaft sleeve positioning assembly, a first compensation ring used for positioning the outer end of a corresponding turnover shaft sleeve is detachably arranged on one side of each turnover shaft sleeve positioning assembly in a matched mode, a second compensation ring used for positioning the outer end of a corresponding guide wheel shaft sleeve is detachably arranged on one side of each guide wheel shaft sleeve positioning assembly in a matched mode, and a third compensation ring used for positioning the inner end of a corresponding swinging arm shaft sleeve is detachably arranged on one side of each swinging arm shaft sleeve positioning assembly in a matched mode. The invention further relates to a hook arm car roll-over stand assembly tailor-welding technology. According to the three-in-one tool, space occupation is avoided, materials are better saved, the parallel degree of the turnover shaft sleeves, the guide wheel shaft sleeves and theswinging arm shaft sleeves, the coaxiality of the turnover shaft sleeves, the guide wheel shaft sleeves and the swinging arm shaft sleeves and the perpendicularity relative to cross beams can be effectively guaranteed, the product precision and quality are guaranteed, the production cost is reduced, the assembling difficulty is reduced, and the part interchangeability is improved.

Description

Technical field [0001] The invention relates to the technical field of hook-arm car assembly, in particular to a tailor-welding tooling and process for a hook-arm car turning frame assembly. Background technique [0002] The turning frame assembly is an important part of the hook arm car. The rear end of the turning frame assembly is combined with a turning bushing used to cooperate with the auxiliary beam assembly to form the first rotation axis, so that the turning frame assembly can rotate around the first time during work. The axis is flipped up and down; the middle of the flip frame assembly is also combined with a swing arm sleeve that cooperates with the swing arm assembly to form the second rotation axis, so that the swing arm assembly can circle the second rotation axis during work Turn up and down; in addition, in order to facilitate the up and down of the carriage, the rear part of the turning frame assembly is also combined with a guide wheel bushing. The swing arm b...

AI Technical Summary

Problems solved by technology

The swing arm bushing, flipping bushing and guide wheel bushing of the tilting frame assembly must ensure parallelism and respective coaxiality, otherwise it will lead to uneven force, easy damage to parts, and affect the operation of the whole vehicle

[0003] In the assembly of the reversing frame assembly, the previous practice is to rely on manual assembly and marking of parts during the welding process, which is difficult to assemble and takes a long time to assemble, which makes the production efficiency of assembly and welding low and becomes the bottleneck of production.

Moreover, relying solely on manual welding, due to the different welding levels, it is difficult to unify the benchmarks, not only the dimensional accuracy and shape and position tolerances are easy to be out of tolerance, but also affect the appearance

The precise requirements of coaxiality and parallelism among the parts cannot be guaranteed, and the interchangeability of parts is poor, which affects the assembly quality, increases the maintenance cost, and is not convenient for after-sales service maintenance.

[0004] In addition, the product specifications of the reversing frame are diversified. Each existing product needs to be equipped with a tooling, and each tooling occupies a work station. In this way, the production stations in the workshop will be very tight. In severe cases, the workshop will lack stations to install production tooling.

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