Multi-welding-spot alloy welding powder coating mechanism capable of adjusting coating thickness

Abstract

The invention discloses a multi-welding-spot alloy welding powder coating mechanism capable of adjusting the coating thickness. The multi-welding-spot alloy welding powder coating mechanism comprises a support device. A retaining seat is arranged on the support device and provided with two or more coating assemblies in the y direction. An ascending-and-descending device and a distance measuring device are arranged between the coating assemblies and the support device. All the coating assemblies are connected with the ascending-and-descending device through a synchronizing device. The distance measuring device is used for measuring the ascending or descending distance of the coating assemblies. By means of the ascending-and-descending device of the multi-welding-spot alloy welding powder coating mechanism, the height, relative to a to-be-welded metal plate, of the coating assemblies can be adjusted, and thus the thickness of alloy powder subjected to roller coating is adjusted; by means of the distance measuring device, the ascending and descending range of the coating assemblies can be controlled better; the roller coating thickness of the alloy powder is uniform and consistent; the multi-welding-spot alloy welding powder coating mechanism is easy and fast to operate and good in stability; meanwhile, by means of the different coating assemblies, roller coating conducted on different positions of the same to-be-welded metal plate can be achieved; and roller coating efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of spot welding auxiliary equipment, in particular to a multi-spot alloy welding powder coating mechanism with adjustable coating thickness. Background technique [0002] Spot welding connects two different parts by welding the individual points on the contact surface of the joint of the weldment. It is a high-speed and economical connection method. For stamped and rolled sheet members with a thickness of less than 3mm, spot welding requires the metal to have good plasticity. In the spot welding between dissimilar metals such as Mg and Al, due to their large brittleness, it is difficult to form a solid solution during spot welding, so the welding quality is not good. The researchers found that the use of suitable alloy powder can form a micro-alloyed area at the welding joint of dissimilar metals, so as to obtain the good effect of symmetrical nugget rules and larger nugget size, effectively improving the q...

AI Technical Summary

Problems solved by technology

For spot welding between heterogeneous metals such as Mg and Al, due to its high brittleness, it is difficult to form a solid solution during spot welding, so the welding quality is not good

The researchers found that the use of suitable alloy powder can form a micro-alloyed area at the welded joint of heterogeneous metals, thereby reaping the excellent effect of regular symmetry of the nugget and increasing the

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