To provide a simulation system of three-dimensional bending work of a tubular body by which computation time is shortened and design change is achieved by accurately determining whether interference with obstacles exists.
The simulation of bending work is performed by calculating the three-dimensional coordinates of the X-, the Y- and the Z-axes by using data including the cutting length, feed length, a rotation angle, a bending angle, bending circular arc length and a bending radius of the tubular body at every bending point of the tubular body by the working motion of a bending machine and also the feed length, the rotation angle and the bending angle are respectively converted into their coordinates in the parallel displacement, the rotation of the coordinate axis around a first axis sharing the original point and the rotation of the coordinate axis around a second axis sharing the original point and the bending simulation is performed while calculating the coordinate of a nodal point as well as the actual length of the tubular body.
COPYRIGHT: (C)2010,JPO&INPIT
YOSHIMOTO NOBUYA
SASAKI YUICHI
MIURA MASAMI
HAMADA AKIHIRO
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