Crane main beam box splicing and assembling device

Abstract

The invention discloses a crane main beam box splicing and assembling device which comprises a placing table, a first clamping device, a second clamping device and a moving platform, the first clamping device is mounted on one side of the placing table, the moving platform is mounted on the other side of the placing table, the second clamping device is mounted on the moving platform, and the first clamping device comprises a first supporting plate and a first driving mechanism capable of overturning the first supporting plate from the horizontal state to the vertical state; and a horizontal oil cylinder for driving the moving platform to be far away from or close to the placing table is mounted between the placing table and the moving platform, the second clamping device comprises a second supporting plate and a second driving mechanism for overturning the second supporting plate from the horizontal state to the vertical state. The crane main beam box splicing and assembling device is used for solving the problem in the prior art that the welding quality of a beam box of a crane main beam is not stable because the placing position of the beam box is not accurate and the beam box cannot be tightly attached to the two sides of a partition plate all the time in the welding process in the assembling and welding process of the beam box of the crane main beam.

Description

technical field [0001] The invention relates to the technical field of crane girder box assembling, in particular to a crane girder box assembling device. Background technique [0002] The main girder of the crane requires extremely high regularity during welding. If the main girder is skewed during welding, it will affect the overall strength of the main girder, which in turn will affect the crane's ability to lift heavy objects. The beam box of the main girder of the crane is assembled and welded by the cut steel plates. When the beam box is assembled and welded, the beam boxes on both sides of the main beam and the middle partition need to be attached tightly to ensure the welding quality. However, in the prior art, the beam box needs to be hoisted by a crane, placed on both sides of the partition, and then welded. The lifting of the beam box by the crane is unstable, the position accuracy of the beam box is not high, and the adjustment of the position of the beam box is...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a crane girder box assembling and assembling device, which is used to solve the problem of inaccurate placement of the beam box during the assembly and welding process of the crane girder box in the prior art and the failure of the beam box in the welding process. The center has been closely attached to both sides of the partition, resulting in unstable welding quality of the main girder box

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