Automatic conversion of design drawing for CAD/CAM integration

CAD/CAM 통합을 위한 설계도면의 자동변환

An algorithm and its computer program were developed for the computer aided automatic conversion from 2-D design drawing, which includes arbitrary curves, to a 3-D object, and the 3-D object obtained from the developed program was used to generate the tool path of NC milling machine. The algorithm and its computer program developed were applied to several real objects for their feasibility check and showed satisfactory results. Therefore, it was proved that the algorithm and its program developed can be applied to the CAM for the mechanical parts having arbitraily curved shapes by automatically generating its 3-D object. As a result of this study a basic theory for the integration of CAD/CAM was established which will prompt the improved quality and productivity.

본 연구에서는 직선 및 원과 원호가 포함된 설계도면 뿐만 아니라 단순한 수 식으로 표현할 수 없는 곡면 즉 선직선(ruled surface)을 포함한 기계 부품용 설계 도 면의 입체 도형으로의 자동 변환과, 자동 변환된 입체 도형으로부터 임의의 위치에 대 한 단면을 도출하여 CAM의 기본 요소인 NC 공작기계의 공구 경로를 발생시키는 과정의 알고리즘을 개발하고 이것을 컴퓨터 프로그램화하여 산업계에 필수적인 CAD/CAM 통합 을 위한 기초 이론을 확립하고자 한다.