INTERFERENCE MONITOR SYSTEM FOR MACHINE TOOL

PROBLEM TO BE SOLVED: To provide an interference monitor system used for a machine tool and having a means for preventing interference in a collision, or cutting movement when a tool and a product are in high-speed transfer and also wrong operation after the interference regardless of automatic operation and manual operation based on the entire contours of the tool and those of the product. SOLUTION: An interference monitoring preparation device and the inter-contour interference determination means of an interference monitoring device divide the range of a product contour T10 into equally sectioned subdivisions 1, 2, 3... and retains product contour elements f(1)-f(5) for every phase number 1, 2, 3, 4, 5..., where, the product contour elements f(1)to f(5) are contained in the respective subdivisions 1, 2, 3... for every phase number 1, 2, 3, 4, 5... as a combination of the subdivisions existing when attention is paid to the maximum point P1 and the minimum point P2 of the tool contours T1-T5, and verifies the presence and absence of the interference between the shape of a machined product and the shapes of a using tool and the tool machine for every phase number 1, 2, 3, 4, 5... A phase present in every subdivision is ensured at any time to narrow down a comparison element at the product contour side. Thus, high-speed calculating operation is available. COPYRIGHT: (C)2005,JPO&NCIPI