Robot welding perpendicularity measuring mechanism and measuring method

Abstract

The invention provides a robot welding perpendicularity measuring mechanism and measuring method so as to improve the perpendicularity of a welding gun rapidly and accurately and improve welding quality. The robot welding perpendicularity measuring mechanism is formed by connecting a base and a measuring rod. The bottom face of the base is a plane, the measuring rod is perpendicular to the bottom face of the base, and the base is provided with a magnet. The a robot welding perpendicularity measuring method comprises the following steps that (A) an upper electrode and a lower electrode of the welding gun are moved to a welded point, and the upper electrode and the lower electrode of the welding gun clamp a sheet metal part in the angle approximately perpendicular to the sheet metal part; (B) a plane beside the welding point of the sheet metal part is selected as a measuring plane, and the base of the robot welding perpendicularity measuring mechanism is attracted to the measuring plane through the magnet; (C) the distance L1 between the center of the end of the measuring rod and the center of the upper electrode rod of the welding gun is measured through a ruler, and the angle of the welding gun is adjusted when L1 is larger than a preset length L0; (D) the step (C) is repeated until L1 is larger than or smaller than the preset length L0, and it means that the welding perpendicularity of the welding gun meets the preset requirement.

Description

technical field [0001] The invention belongs to the welding field of welding robots, and in particular relates to a robot welding perpendicularity measuring mechanism and a measuring method thereof. Background technique [0002] Today, with the rapid development of the automobile industry, in order to ensure the consistency of welding quality, various automobile manufacturers have begun to widely introduce robot welding in the welding of body-in-white. In the process of robotic welding, the verticality factor of welding torch is a key factor affecting the consistency of welding quality, which affects the surface quality and strength of solder joints. The problem of the verticality of the robot welding torch is generally solved at one time during the on-site welding torch trajectory debugging. In the on-site debugging, the deviation between the welding electrode of the robot welding torch and the welded sheet metal part is basically judged by the intuition of the human eye,...

AI Technical Summary

Problems solved by technology

While measuring with human eyes, although the detection speed is fast, the deviation is large, it is difficult to judge and identify the 5-degree angle, and it has a lot to do with personal experience, the detection accuracy rate is low, and the consistency is poor

In addition, the most intuitive angle detection method is to use the angle measurement mechanism to measure the angle, but due to the limitation of the operating space, it is basically difficult to realize the intuitive angle measurement in the welding torch electrode angle measurement, so it is not used

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