Device for grinding U rib

Abstract

The invention discloses a device for grinding a U-shaped rib. The device is used for grinding the fixedly placed U-shaped rib and comprises a driving device, a machine frame, a walking track, a first guide rail and a grinding part; the walking track is arranged in the length direction of the U rib; the machine frame is connected with the walking track in a matched manner and driven by the driving device to walk along the walking track; the first guide rail is fixedly mounted on the machine frame, and the length direction of the first guide rail and the length direction of the to-be-polished U rib are staggered; the grinding part is movably connected to the machine frame through the first guide rail and can move along the first guide rail; the grinding part comprises a grinding assembly and an angle adjusting assembly; the grinding assembly is used for grinding the web edge part of the U rib; and the grinding assembly can change the grinding angle under adjustment of the angle adjusting assembly so that the grinding end face of the grinding assembly can be adjusted to be matched with the to-be-polished faces of U rib webs. The device can automatically grind the inclined surfaces of the end parts of the web plates at the two sides of the U rib, and is high in efficiency and high in grinding precision.

Description

technical field [0001] The invention relates to the technical field of U-rib welding, in particular to a device for grinding U-ribs. Background technique [0002] Steel box girder is an important part of bridge load-bearing structure, mainly used to provide support and avoid bridge deformation. Steel box girders are generally orthotropic plate structures, which are welded by U ribs and bottom plates. [0003] The orthotropic slab structure has been widely used in the construction of steel structure bridges due to its advantages of light weight, large bearing capacity and short construction period. In orthotropic steel structure bridges, in order to reduce welding defects in the seam welding between U ribs and bridge decks, it is necessary to grind and derust the edge of U rib webs before welding the fillet welds. Because the webs on both sides of the U-rib are not parallel, and the thickness of the web is different, currently U-rib grinding mainly relies on workers holding...

AI Technical Summary

Problems solved by technology

Because the webs on both sides of the U-rib are not parallel, and the thickness of the web is different, currently U-rib grinding mainly relies on workers holding electric tools for grinding. Manual grinding is not only low in efficiency and precision, but also the dust in the grinding area is large and the working environment hard

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