Tower crane main chord rod pre-deformation welding tooling

Abstract

The invention discloses a pre-deformed welding tool for a main chord of a tower crane, which includes a tool body; and further includes: a positioning and pressing component, which includes a base, a cantilever arm, a locking screw and an adjusting block arranged on the base; A jacking assembly, which includes a mounting seat, a jacking cylinder connected with the mounting seat, and a jacking block arranged on the jacking cylinder; a pre-deformed assembly, which includes a base, an oil cylinder, a U-shaped regulation block and a lifting cylinder; end positioning components; the positioning and pressing components are symmetrically installed on the left and right sides of the tooling main body; the end pressing components are installed on the left side of the tooling main body; the end positioning components are installed on the right side of the tooling main body; the pre-deformed components are slidingly connected with the tooling main body; It solves the problem of manual inconvenient positioning along the direction of the main chord, and can realize the functions of pressing, self-locking and quick disassembly, and can realize the clamping, positioning, pre-deformation and welding of the main chord of different cross-sectional sizes, ensuring the accuracy of the pre-deformation. and the accuracy of the pre-deformation duration.

Description

technical field [0001] The invention relates to a pre-deformation welding tool for a main chord rod of a tower crane, and belongs to the technical field of cranes. Background technique [0002] Driven by a series of favorable policies such as the urbanization strategy in China, the tower crane industry is booming; the tower body of the tower crane is connected and increased by standard sections one by one. Rod composition. [0003] The main chord is the main structural part of the standard section, and its welding quality is directly related to the strength of the standard section and even the stability of the entire tower crane. The welding of the main chord is generally completed by first welding the main girder composed of angle steel, and then assembling and welding the plate, gusset plate, step, hanging point plate, etc. These parts are only fixed on the main girder by spot welding. Welding deformation caused by shrinkage will cause the position of the gusset plate an...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a pre-deformation welding tooling for the main chord of a tower crane, which solves the problem of positioning along the direction of the main chord with manual inconvenient operation, and can realize compression self-locking, quick disassembly, and different The clamping, positioning, pre-deformation and welding of the main chord of the section size ensure the accuracy of the pre-deformation amount and the accuracy of the pre-deformation duration

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