JPS5645268A - Automatic welding and cutting device - Google Patents

Abstract

PURPOSE: To enhance the efficiency of welding and cutting in working of the rear cone of a cylindrical type rotary drum, by providing a process for performing welding operation continuously and repeatedly and performing cutting operation at one time.

CONSTITUTION: Six sheets of plate materials 1 are mounted onto jigs 11, and both carriages 21, 24 are moved by the dog sensing switch in a switch box 31 and a limit switch 26 to the positions where a welding torch 25 opposes to the inside circumferential edge of the joint line (a). The welding operation of the joint line (a) is performed at a low speed by a welding start button, after which it is once stopped, then an arm 15 slews at low speed→middle speed→low speed to the joint line (b). The carriage 34 returns at a high speed to the inside circumferential end. In the same manner, the welding is performed up to the line (e). The torch 25 returns to the inside circumferential end and the arm returns to the position where a gas torch 27 opposes to and contacts the side frame 16. The gas torch 27 is ignited and the arm 15 starts running reverse at a middle speed upon pushing of a start button, thus the simultaneous cutting operation of arc lines (f), (g) is accomplished.

COPYRIGHT: (C)1981,JPO&Japio