Ultra-small size welding seam tracking method based on heat input

Abstract

The invention relates to an ultra-small size welding seam tracking method based on heat input. The method comprises the following steps of: obtaining coordinate data at starting and ending positions of the center of a butt joint of an ultra-thin and fine weldment through a BOA intelligent camera; transmitting the coordinate data to a DSP processor; obtaining real-time position coordination data of the center of the butt joint of the ultra-thin and fine weldment through the BOA intelligent camera; through calculation, outputting a signal for controlling rotation direction and rotation angle of a stepping motor; controlling the stepping motor under the driving of a stepping motor driving board; through the stepping motor, driving a welding gun fixed on a translational platform to track the central position of a welding seam of an ultra-thin and fine precise structural piece for welding; enabling the welding gun to advance forwards; controlling heat input of the welding through controlling welding speed; and displaying real-time speed of the welding gun by using MAX7912. According to the invention, high-quality welding of a 0.1 mm stainless steel thin plate can be preferably achieved; and high control precision as well as stability and reliability in working are achieved.

Description

technical field [0001] The invention relates to the technical field of welding automation, in particular to an ultra-small-scale welding seam tracking method based on heat input. Background technique, [0002] During the welding process, the actual welding conditions often change, and the influence of various factors will cause the welding torch to deviate from the weld seam, resulting in a decline in welding quality or even failure, especially when welding the weld seam on an ultra-small scale, it is more difficult , Improper control of welding heat input can easily cause burn-through and deformation of ultra-thin structural parts, resulting in welding failure. [0003] Ultra-small-scale seam tracking is to perform seam tracking on ultra-thin and thin structural parts with a thickness below 0.1mm. Difficulties in seam tracking for ultra-thin and thin structural parts: [0004] 1) How to find the weld. When two ultra-thin structural parts (thickness less than 0.1mm) are b...

AI Technical Summary

Problems solved by technology

"A Microbeam Plasma Arc Welding Method for Pure Titanium Foil" (Application No.: 201010101229.6) invented by He Jianping of Shanghai University of Engineering Technology and others, although it has achieved high Quality welding, but the alignment between the welding torch and the pure titanium foil weld is manually adjusted, which is time-consuming and the adjustment accuracy is not high

From the search results, it can be seen that there are no reports on the ultra-small-scale seam tracking method with a thickness below 0.1mm.

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