A study on design and structural strength analysis of positioner in robot overlay welding system of ball for ball-valve

Abstract

A study on design and structural strength analysis of a positioner in robot overlay welding system of a ball for ball-valves. Turning-unit of positioner modeled, analysis was conducted by assuming the beam. Turning-unit is applied to the stress, it was shown by 366.85㎫ when weight of the ball is 9,000  . This value is higher than the yield strength of the material. Based on the results of previous, it was modeled the turning-unit by modifying. Results of analysis by a modified modeling, The value of stress was confirmed to 296.11㎫. This value is a value lower than the yield strength of the material, it was found to support the weight of the ball.