Abstract
자동차, 조선, 발전설비 및 산업기계 등 거의 전 산업분야의 제품 생산단계에 용접기술이 사용되고 있다. 본 연구에서는 구조용 금속제품 제조공장에서 많이 사용되어지는 PLC <TEX>$CO_2$</TEX> 자동용접 시스템의 설계 및 구현에 관해 조사하였다. 이를 위해 시스템의 구동부 지지대에 대해 구조해석을 수행하였으며 전력절약형 시스템의 구현을 위해 자동전압조정기의 사양선택, 시스템의 상호인터페이스 및 회로도 설계를 고안하였다. 그 결과 용접 구동부 지지대의 설계가 안전함을 확인하였으며, 또한 PLC <TEX>$CO_2$</TEX> 자동용접 시스템은 다품종 소량 생산형 구조물 제조공장의 용접자동화에 적합하며 생산성 향상, 품질안정 및 전력 절약에 기여할 수 있음을 확인하였다. The welding technology has been used in almost all industries such as automotive, shipbuilding, power plants and industrial machinery. In this study, the design and implementation of PLC <TEX>$CO_2$</TEX> welding automation system were investigated. For these purposes, the structure analysis for driving supporter was performed and specification of automatic voltage regulator, mutual interface of system and circuit diagram were designed in order to contrive power-saving system. As the results, the stability of design for driving supporter could be convinced by numerical analysis and PLC automatic welding system was suitable for welding automation of structural-manufacturing factory capable of producing various and small amount products. Therefore, it was confirmed that PLC <TEX>$CO_2$</TEX> welding automation system could contribute to productivity, stable quality and power-saving.
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