Special-purpose automatic assembling and tack welding machine tool for plate type reinforcing rib plate units

Abstract

The invention discloses a special-purpose automatic assembling and tack welding machine tool for plate type reinforcing rib plate units, which comprises a pair of parallel rails and a gantry, the gantry can move on the rails, and an assembling platform is laid between the two rails; the gantry comprises a main crossbeam, uprights and traveling beams, which are fixedly connected together, and one gantry-traveling mechanism is respectively arranged on the bottom of each of the two traveling beams; and the special-purpose automatic assembling and tack welding machine tool is characterized in that a movable welding system and a parallelogram-shaped positioning and clamping mechanism are arranged on the main crossbeam. Because the parallelogram-shaped positioning and clamping mechanism is combined with a polishing and dedusting system and the robotic welding system, the polishing and dedusting of the areas to be welded of the plate type reinforcing rib plate units, the positioning and pressing of plate type reinforcing ribs and robotic tack welding can be automatically controlled together, and the special-purpose automatic assembling and tack welding machine tool has the advantages that the assembly precision of the plate type reinforcing rib plate units is high, the automatic assembly and production efficiency is high, and the quality of welding lines is stable.

Description

technical field [0001] The invention relates to a special automatic assembly and positioning welding machine tool specially used for assembling and welding plate stiffening rib plate units among various plate units assembled and welded into bridge girder sections in the manufacture of large-scale bridge steel structures. Background technique [0002] Among the large-scale steel structure bridges in our country, there is a box-shaped bridge. Its structure is surrounded by steel structures along the bridge, and the middle is divided into sections by multi-layer diaphragms. The overall structure is like a giant. Long box, so it is a steel box girder. The manufacturing process is to weld several plate units to form a bridge section, and then the bridge sections are butted, assembled and welded to form a whole steel structure of the bridge. The plate unit is the most basic structural unit of the box structure. There are several types of it, among which the very common one and th...

AI Technical Summary

Problems solved by technology

For a long time, the manufacturing method of the plate stiffener plate unit is to assemble and weld with simple tooling with manual assistance. The problems existing in this production method are poor accuracy of plate-rib spacing, poor parallelism between plate ribs, and poor perpendicularity to the panel, which cannot be guaranteed Closely attached to the panel

At the same time, there are many problems such as low efficiency, high labor intensity, exposed primer and rust removal methods, which cause rust and dust to diffuse, and make the working environment bad.

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