A process method for fully automatic welding of the corrugated wall of the fuel tank of the distribution transformer by a robot

Abstract

The invention discloses a technological method for fully-automatically welding a distribution transformer oil tank and a corrugated wall by utilizing a robot. The technological method comprises the following steps: determining the quantity of side-weld locating points according to the length of the corrugated wall and the quantity of fins, sequentially touching side surfaces and end surfaces of the fins at the locating points as well as the upper plane of an oil tank framework by utilizing a welding wire which extends out of an arm welding gun of the welding robot so as to acquire a first locating coordinate set, connecting a plurality of locating point coordinates so as to form a side-weld welding path, and carrying out side-weld welding by utilizing the arm welding gun; arranging positioning-stopping blocks on two sides of a direct-weld position, and touching side surfaces and outer end surfaces of the positioning-stopping blocks at the direct-weld position as well as the upper planeof the oil tank framework by utilizing the welding wire which extends out of the arm welding gun so as to acquire a second locating coordinate set; and calculating two end-point coordinates of a direct-weld welding path according to the second locating coordinate set, and connecting the end-point coordinates to form the direct-weld welding path. According to the technological method disclosed bythe invention, welds between the corrugated wall and the distribution transformer oil tank can be automatically located by utilizing the welding robot, and then the corresponding welds can be automatically welded by utilizing the welding gun.

Description

technical field [0001] The invention relates to the technical field of distribution transformer fuel tank welding, and more specifically, relates to a process method for fully automatic welding of the corrugated wall of the distribution transformer fuel tank by a robot. Background technique [0002] At present, the process flow used in the welding of the corrugated wall of the domestic distribution transformer oil tank is as follows: [0003] Process 1: Skeleton grinding; [0004] Process 2: Spot welding of artificial skeleton and corrugated wall; [0005] Process 3: full welding of artificial skeleton and corrugated wall; [0006] Process 4: Fuel tank repair welding; [0007] Process 5: Oil tank pressure leak test; [0008] There is following shortcoming in above-mentioned process method: [0009] 1. Manual welding. The quality of the weld seam is greatly affected by the skills of the personnel, and the quality of the weld seam is unstable. During the welding process,...

AI Technical Summary

Problems solved by technology

[0009] 1. Manual welding

The quality of the weld seam is greatly affected by the skills of the personnel, and the quality of the weld seam is unstable. During the welding process, the entire fuel tank needs to be turned over many times, which is time-consuming and laborious.

[0010] 2. The corrugated wall needs to be spot-welded by a special person, and it will be fully welded after welding, which is labor-intensive and time-consuming

[0011] 3. There are leakage points (welding defects such as welding holes, local thermal deformation, and virtual welding) after the skeleton and the corrugated wall are welded, and special personnel are required to suppress the leak and repair all the leaking positions

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