Mechanical processing device for the connection between u-rib and diaphragm of orthotropic steel bridge deck

Abstract

The invention relates to a mechanical processing device for a connecting part of a U-shaped rib and a transverse separation plate of an orthotropic steel plate bridge deck plate. The processing device consists of three parts including a magnetic drill, a combined cutter rod and a positioning support frame, wherein the combined cutter rod comprises a cone handle, a cutter head and a guide rod, the cone handle is connected with the magnetic drill, the cutter head is fixedly connected with the cone handle, the guide rod is arranged on the cutter head, a positioning bearing is embedded in a table top of the positioning support frame, a support leg is provided with a positioning magnet, during the operation of the processing device, the positioning support frame is fixedly arranged at one side of the transverse separation plate, the magnetic drill is adsorbed on the other side of the transverse separation plate, and the guide rod of the combined cutter rod is connected with the positioning support frame through the positioning bearing, so the stable rotation of the cutter rod during the operation is ensured. Through the simple magnetic adsorption, small-size equipment is used for milling cutting processing in a limited space, and the defect of influence on the material performance caused by too high temperature of local parts when the flame cutting is adopted is overcome, so the fatigue performance of the orthotropic steel plate bridge deck plate is ensured. When the processing device provided by the invention is used, the secondary grinding is not needed after the completion, the efficiency is improved, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to a mechanical processing device for the connection between U-ribs and diaphragms of orthotropic steel bridge decks, and belongs to the technical field of bridge welding auxiliary equipment. Background technique [0002] At present, when the steel bridge manufacturing factory manufactures orthotropic steel bridge decks, in order to improve the fatigue performance of the joint between the U-rib and the diaphragm, the amount of secondary processing is reserved when cutting the diaphragm. After the welding of the diaphragm and the U-rib is completed, the reserved part needs to be further processed and removed to achieve a smooth transition of the arc-shaped gap. Flame cutting is usually used for secondary processing. Manual cutting or semi-automatic cutting cannot be completed at one time. After cutting, it needs to be further polished with a grinding wheel, which increases the process and labor costs. At the same time, due to loca...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the existing problems such as grinding, low efficiency, and affecting fatigue performance of the reserved processing allowance at the joint of the existing U rib and the diaphragm, the present invention provides a special processing device to realize the mechanical milling process of the joint, which is effective Avoiding the high temperature effect of flame cutting, making the transition between the U-rib and the arc-shaped notch of the diaphragm smooth, and no grinding is required after processing

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