K-Chosun Develops Automated Equipment for Hull Letter Marking Welding Using Collaborative Robots
K-Chosun participated as a demand company in this year's Small and Medium Shipbuilding Smart Production Innovation Support Project, supported by the Ministry of Trade, Industry and Energy and hosted by the Research Institute of Medium and Small Shipbuilding (RIMS). Together with Doosan Robotics, they completed the development of 'Automated Equipment for Hull Character Marking Welding Using Collaborative Robots' and held a final inspection and demonstration event on the 21st with the participation of the hosting organization and others.
Hull characters refer to various letters and marks engraved on the ship's outer shell for the purpose of ship operation and maintenance, formed by welding beads. This work has traditionally relied on manual labor, taking a lot of time and resulting in inconsistent welding bead quality. There have also been cases where automated equipment of the 3-axis (X, Y, Z) plot type using a linear motion guide method was developed.
The newly developed equipment mounts a collaborative robot on a traveling cart, which recognizes the marking reference point position through a vision sensor mounted on the cart and automatically performs welding of the input characters by the collaborative robot. This technology, applied for the first time domestically, secures high-quality welding beads and drastically reduces work time. It was recognized for its technical excellence through in-house trial operation, final project inspection, and demonstration evaluation.
A K-Chosun official stated, “We will continue to apply such collaborative robots to welding of small parts and welding in narrow spaces to contribute to improving productivity through work process improvements.”
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Meanwhile, K-Chosun also participated in the Small and Medium Shipbuilding Smart Production Innovation Support Project in 2022, applying industrial robots to automate the lug manufacturing process.
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