Reverse drilling device for lower flange of steel beam

Abstract

The invention discloses a reverse drilling device for the lower flange of a steel beam. The reverse drilling device comprises a horizontal stabilizing bottom plate, wherein a fixing main rod is fixedly connected to the center of the top of the horizontal stabilizing bottom plate, a fixing plate is fixedly connected to the left side of the surface of the fixing main rod, and a stabilizing inclined rod is fixedly connected to one side of the surface of the fixing plate; and a stabilizing cylinder is fixedly connected to the left side of the bottom of the fixing plate, a screwing screw rod penetrates through the surface of the left side of the fixing plate, and the bottom end of the screwing screw rod penetrates through the stabilizing cylinder and extends to the bottom of the stabilizing cylinder. The invention relates to the technical field of drilling devices. According to the reverse drilling device for the bottom flange of the steel beam, through combined arrangement of a first connecting block, a connecting rod, a second connecting block, a first connecting shaft and a second connecting shaft, when a movable part of the device operates, through movable connection of the connecting rod, stability and reliability of the device during operations are further improved, the working accuracy degree of a drill bit is effectively ensured, and working errors are avoided.

Description

technical field [0001] The invention relates to the technical field of drilling devices, in particular to a reverse drilling device for the lower flange of a steel beam. Background technique [0002] At present, steel structures are used more and more widely in the construction industry, and there are more and more large-scale steel structure civil buildings and steel structure industrial plants. There must be steel structure girders or steel structure crane beams in all kinds of steel structure buildings. Due to design, factory There are many reasons for manufacturing, processing and on-site installation. Many steel girder lower flange factories can only carry out reverse drilling on the steel girder lower flange with the upper flange of the steel beam facing upward and the lower flange facing downward during the process of manufacturing or on-site installation. Processing (that is, the drilling machine is set in reverse, and the drill bit faces up to drill the lower flange...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a reverse drilling device for the lower flange of the steel beam, which solves the problem of setting up high-altitude platforms or drilling workers into narrow spaces for drilling. The labor intensity of workers is huge, and the cost of temporary measures on site is high. , the work efficiency of workers is low and there are great safety hazards in construction

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