Abstract
In the process of robot spraying, the uniformity of product surface coating is very important for product quality. Based on the mathematical model of robot spray gun spraying, the cumulative distribution of coating at any point in the spraying area on the plane during the movement of the spray gun is analyzed, and then the distribution curve of coating thickness in one direction is obtained. The optimal spraying spacing is obtained by simulation with the coating uniformity as the goal. When the width of the spraying working surface is not an integral multiple of the optimal spraying spacing, the last spraying spacing is less than the optimal spraying spacing. Therefore, an improved method is proposed to take the last twice average spraying spacing and increase the distance between the spray gun and the spraying surface. Through MATLAB simulation, the results show that the coating thickness obtained by this method is basically consistent with the coating thickness with the optimal spraying spacing.