AUTOMATIC CUTTING DEVICE AND PRODUCTION METHOD FOR BEVELED PRODUCT

摘要

A plasma cutting device provides a continuous and efficient sub-cutting steps in a plurality of stages of beveling. In the first sub-cutting step, a product (34) is cut out from a base material on a stage according to an NC program. Next, images of respective areas in the vicinities of true positions (861, 862) (the positions of the corner points of a product graphic (80) defined by the NC program) of two corner points of the cut-out product (34) are photographed by an image sensor, the actual positions (841, 842) of the two corner points of the product (34) are detected from the photographed images, and translating distances and rotation angles between the detected actual positions (841, 842) and the true positions (861, 862) are calculated. The NC program is corrected for compatibility with the actual position of the product (34) according to the calculated translating distances and rotation angles. In the subsequent sub-cutting step, an additional cutting for beveling is carried out on the sectional surface of the outer periphery of the product (34).