Abstract: The original planar shape or developed shape of a product to be manufactured by bending is determined using a computer-aided design system. An operator operates a tablet unit to prepare, first and second projection drawings of, e.g., an L-shaped product, projected onto two planes parallel to the outside of first and second sides of the product, with a bending line in common. The computer-aided design system displays the first and second projection drawings on a display screen in accordance with shape data which defines the two projection drawings (S1). In response to the operator picking two vertices of each projection drawing on the side of the bending line using the tablet unit (S2, S3), the processor calculates distances of movement in the X- and Y-axis directions and the rotational angle of the second projection drawing required for the alignment of the two sets of vertices (S5).

Abstract: A data drawing method which facilitates the checking of numerical control data for a polyhedron machining and is carried out by, for example, an automatic programming system. If a drawing mode is selected in which machining profiles and tool paths related to individual machining surfaces of a polyhedral material are displayed separately on a display screen according to the machining surfaces, and if a processor of the programming system determines that NC data obtained by executing a program statement read from a part program is related to any one of the machining surfaces, drawing areas corresponding in number to the faces of the polyhedral workpiece on the display screen are displayed, and a character string representing the machining surface and a material profile in a drawing area corresponding to the machining surface are displayed. Then, machining profiles and tool paths specified by the produced NC data are displayed in the drawing area to permit the operator's visual checking.

Abstract: To embody a method for automatically editing multi-faced polyhedron machining processes in a manner capable of efficiently operating a machine tool, a processor of an automatic programming apparatus causes a first one of definition statements associated with upper face machining to be transferred from a first file of a memory device of the programming apparatus to a second file and to be deleted from the first file (S13), and sequentially performs transfer of upper face machining process definition statements, specifying the same tool number as that specified by the first one of the upper face machining process definition statements, to the second file, and deletion of these statements from the first file. Similar processing is sequentially performed for each of different tool numbers, whereby the upper face machining process definition statements for each tool number are collectively stored in the second file.

Abstract: A drawing parameter setting method capable of setting drawing parameters for an XY plotter.When two vertexes (P1, P2) of a drawing subject region including a figure (F1'), for which a figure conversion process including figure movement, enlargement and reduction has been performed on a CRT screen (5a), are specified, a processor calculates the amount of movement of the figure before and after the conversion and a figure conversion scale, and also calculates coordinate positions ((LDX, LDY), (RUX, RUY), (MX, MY) of the two vertexes and a center (P3) of the drawing subject region.

Abstract: The present invention relates to a method of defining a hole position of a punch mounting part in a progressive mold. Position of the holes (PH1-PH3) for parts such as bolts which mount punches on a plate (PLT) are defined, the positions of the part holes (PH1-PH3) are stored in correlation with punch shapes (DF1-DF3), and the part hole positions are moved in association with movement of the punch shapes.

Abstract: When a main figure (FG1) and at least one subordinate figure (FG2) are designated, a processor (11a) obtains, a point of intersection at which a figure element of the main figure (FG1) intersects each figure element, e.g., a linear element (EL.sub.1), constituting the subordinate figure (FG.sub.2). If a point of intersection exists, the figure element (EL.sub.1) is divided at the point of intersection (P.sub.c) to generate subordinate figure elements (EL.sub.11, EL.sub.12), and an item of hidden-flag data, which is indicative of a subordinate figure element (EL.sub.12) on an inner side of the main figure, is turned on. The image of the subordinate figure element (EL.sub.2) is not displayed on the display screen. In a case where a figure element such as the figure element (EL.sub.2) of the subordinate figure (FG2) is not intersected by any of the figure elements of the main figure (FG1), it is checked to see whether a starting point (P.sub.