A welding workbench for side doors of train freight cars

Abstract

The invention belongs to the field of welding automatic tools, and relates to an installing and welding workbench for a train freight carriage side door. The installing and welding workbench is composed of a bottom frame, a bracket, a positioning frame, positioning blocks and pneumatic pressing devices. By means of the positioning blocks, the positioning frame and the pneumatic pressing devices, positioning and pressing of a door plank, a door shaft base and a seam folding plate during train freight carriage side door assembling and welding are achieved. By means of a pneumatic ejecting device with a wheel frame, feeding and discharging of workpieces are assisted, and pressing of the door plank and the seam folding plate is achieved through the three sets of pneumatic pressing devices. In the welding process, pressing and lifting of the pneumatic pressing devices are automatically controlled through a control system, the collision with a welding gun is avoided, two sets of pneumatic clamps are constantly kept in a pressed state, welding deformation is controlled, and the welding quality and the welding efficiency can be improved.

Description

technical field [0001] The invention relates to a welding workbench for side doors of train freight cars. Specifically, it uses pneumatic clamps, positioning blocks, positioning frames and roller brackets to realize the positioning and clamping of side doors of train freight cars before welding, and belongs to welding automation. field of tooling. Background technique [0002] On the one hand, welding processing requires welders to have skilled operation skills, rich practical experience, and stable welding level; on the other hand, welding is a job with poor working conditions, a lot of smoke and dust, large heat radiation, and high risk. Automated welding replaces manual welding, which can reduce the labor intensity of workers, improve welding quality and welding efficiency, and a large number of highly automated welding equipment is an inevitable trend of industrial modernization. [0003] The side door of the train freight car is welded by the structure of the door pane...

AI Technical Summary

Problems solved by technology

[0003] The side door of the train freight car is welded by the structure of the door panel, the door shaft seat and the crease plate. The welding quality requirements are relatively high. Nowadays, manual welding or semi-automatic welding with welding trolleys are mostly used. The welding quality of the workpiece is not high, and the welding efficiency is low. Low

Images