Auxiliary pressing tool for eliminating laser stitch welding gaps generate between side wall stand column and corrugated plate

Abstract

The invention discloses an auxiliary pressing tool for eliminating laser stitch welding gaps generate between a side wall stand column and a corrugated plate and belongs to the field of gap auxiliary pressing devices used in the laser welding process of a side wall stand column and a corrugated plate of a railway vehicle. The tool comprises a gate type slit clamping plate mechanism, multiple stud pressers and a support platform. The slit clamping plate mechanism comprises double slit clamping plates, a rotating shaft support column, a locking support column and multiple lead screw nuts. Each stud presser comprises a pressing block, a lead screw end protection sleeve and a lead screw threaded rod. By means of the auxiliary pressing tool, all the flat plate flanging weld joint gaps at the two sides of the side wall stand column can be controlled to be smaller than 1mm; the weld joint gaps are uniform, orderly in appearance and attractive in appearance; and the high standard requirements of modern railway passenger cars on the welding process of the side wall stand column are met completely.

Description

technical field [0001] The invention belongs to the field of gap auxiliary pressing devices in the laser welding process of rail vehicle side wall columns and corrugated plates, and in particular relates to an auxiliary pressing tool for eliminating the gap between side wall columns and corrugated plates by laser stitch welding. Background technique [0002] Such as Figure 1 to Figure 3 As shown, the side wall column 1 of the rail passenger car is a thin-walled structure with a convex cross section, which includes a rectangular boss 1-1 and flat flanges 1-2 on both sides, and the corrugated board 2 has parallel to each other. The multiple corrugated bosses 2-1. During the assembly and welding process of the side wall column 1 and the corrugated plate 2, it is necessary to weld the lower end surfaces of the plate flanges 1-2 on both sides of the side wall column with the upper end surfaces of each corrugated boss 2-1 of the corrugated plate one by one. The existing conventi...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing pressing method of pressing the two ends of the side wall column with quick clamps and pressing it on the corrugated plate as a whole cannot meet the high standard requirements of the laser welding process for the weld spacing, the present invention provides An auxiliary pressing tool for eliminating the gap between the side wall column and the corrugated plate laser stitch welding

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