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Development of a teachingless robot system for welding a large-sized box-type construction

As a means of teaching operations to robots, the use of off-line teaching is increasing because it does not require the production line to be stopped. Off-line teaching, however, requires a certain amount of operator workload. To overcome this problem, Kawasaki Heavy Industries has developed an automated off-line teaching system known as KCONG (Kawasaki Common Off-line NC data Generator). In this system, which uses design data from a three-dimensional (3D) CAD system, a computer can automatically generate numerical control (NC) data that will describe the action of a robot, thus eliminating any involvement on the part of the operator. This system has been applied to an automatic welding robot system for a large-sized box-type construction.