Spot welding-based welding spot strength detection mechanism

Abstract

The invention discloses a spot welding strength detection mechanism. The detection mechanism comprises a detection table surface; an air cylinder is arranged on the detection table surface; the lowerend of the air cylinder is movably connected with a pressure head; a detection base fixed on the detection table surface is arranged below the air cylinder; the detection base has an upward opening; and the size of the opening of the detection base is smaller than the size of a metal plate I at an upper layer of a to-be-detected metal workpiece and is slightly larger than that of a metal plate IIat a lower layer of the to-be-detected metal workpiece. According to the detection mechanism, by adopting an air pressure of the preset air cylinder, and using the pressure head connected with the aircylinder to apply a force to welded lower layer metal, whether the welding spots of the lower layer metal and upper layer metal have potential failure or not is detected, so that unqualified welded parts are removed, and the potential failure risk caused by the fact that the welding spots of spot welding are not visible and cannot be detected is avoided; and meanwhile, the requirements of semi-automatic operation on operators are relatively low, a detection result is simple and intuitive, and the detection rate is high.

Description

technical field [0001] The invention relates to a strength detection mechanism of solder joints, in particular to a strength detection applied to plate spot welding, and belongs to the technical field of detection mechanisms. Background technique [0002] In industrial production, resistance welding is commonly used to connect two metal plates, among which spot welding is the most common. The advantage of resistance welding is that the surface traces of the plates after welding are small or even completely traceless, and the workpiece is beautiful, but its disadvantages But after the welding is completed, the solder joints are not visible from the surface, and the welding status cannot be known, and there is a potential risk of failure. Contents of the invention [0003] The purpose of the present invention is to provide a mechanism that can detect the strength of spot welding of plate products. [0004] In order to achieve the above-mentioned technical purpose, the techn...

AI Technical Summary

Problems solved by technology

[0002] In industrial production, resistance welding is commonly used to connect two metal plates, among which spot welding is the most common. The advantage of resistance welding is that the surface traces of the plates after welding are small or even completely traceless, and the workpiece is beautiful, but its disadvantages After the welding is completed, the solder joints are not visible from the surface, and the welding status cannot be known, and there is a potential risk of failure

Images