Abstract: A numerical control device for compound machine tool has an interactive facility software to enable a working program and various sorts of data to be input in an interactive form. With the interactive facility software, various sorts of data such as a tool compensation amount required for a working operation and a work coordinate system can be read at any time by accessing to a memory storing a lathe turning control software and a milling control software.

Abstract: A numerical control device for compound machine tool has an interactive facility software to enable a working program and various sorts of data to be input in an interactive form. With the interactive facility software, various sorts of data such as a tool compensation amount required for a working operation and a work coordinate system can be read at any time by accessing to a memory storing a lathe turning control software and a milling control software.

Abstract: A plurality of fixed form programs used to create a processing program are stored. The fixed form programs include undefined data portions respectively. One fixed form program is selected, and data is key-inputted to the undefined data portion included in the fixed form program. Consequently, the processing program using the fixed form program to be used for a numerical control device is created.

Abstract: A numerical control device for compound machine tool has an interactive facility software to enable a working program and various sorts of data to be input in an interactive form. With the interactive facility software, various sorts of data such as a tool compensation amount required for a working operation and a work coordinate system can be read at any time by accessing to a memory storing a lathe turning control software and a milling control software.

Abstract: A machining limit area specifying method and a manual feed machining method using a numerical control unit capable of easily performing machining in a desired shape by manual feed. In specifying a machining limit area on an X-Y plane, a desired machining shape is defined by shaping data or a combination of some shaping data on the X-Y plane at a predetermined Z-coordinate, and the desired machining shape defined by the shaping data is specified as a machining limit area in which movement of a tool is permitted on the X-Y plane in manual machining using the numerical control unit. In specifying a machining limit area in the Z-axis direction, an inverse function using an X- or Y-coordinate value as a parameter is obtained based on a function for specifying the machining limit area on the X-Y plane on condition that a Z-coordinate value is used as a parameter, and the machining limit area in the Z-axis direction is specified based on the inverse function.

Abstract: A machining program checking method is provided for a numerical control device which controls an NC lathe for performing a machining operation with a plurality of tools simultaneously mounted on a turret thereof, wherein interference of the tools with a workpiece or with various parts of the lathe can be surely detected before the machining operation is actually executed.

Abstract: A basic spiral operation of a tool is controlled by storing, in a controller, an automatic operation program of a threading cycle which regulates the basic spiral operation of the tool corresponding to a thread shape by specifying a spindle revolving speed RC, a thread lead ZR and a thread cutting finish point Z2 or the like. A depth of cut by the tool is determined by an operator who operates a handle of a manual pulse generator to cut the work and confirms the cutting conditions.

Abstract: In a state where definition of machining has been already finished for the first to N-th processes, such data as a machining kind, tool data including a tool code, and cutting conditions related to the j-th process (1.ltoreq.j.ltoreq.N+1) are inputted as new data or modified data in an interactive mode on a screen. Next, a shape of the workpiece at a point of time when the (j-1)th machining process has been finished and the final shape of the workpiece to be cut are displayed on a screen, and a cutting area for the j-th machining process is set or modified by means of the screen. Then, a shape of the workpiece at a point of time when the j-th process is finished is found on the basis of the inputted data, and a cutting area to be newly cut or to be modified in the j-th machining process is identified and displayed by displaying one upon the other on the screen the found shape of the workpiece and a shape of the workpiece at a point of time when the (j-1)th process has been finished.

Abstract: A method of animation plotting by an NC machining program on an NC lathe having a multiplicity of tool rests. The method provides animation plotting for Y-axis machining such as engraving. A display screen of a CRT/MDI provides first display areas "a1" to "an" for simulating a machining process of a workpiece projected in an axial direction of a tool. A second display area is also provided for simulating a machining process of the workpiece projected in the direction of a Y-axis orthogonal to an X-axis and a Z-axis. For each rotational positioning point .theta.i (i=1 to n) of the spindle, Y-axis machining is simulated by simultaneously displaying the movement path of the tool and the shape of the tool within the first display area "ai" and the second display area.

Abstract: An animated plotting method in which an actual machining action is accurately simulated even if a tool rest is moved to another main spindle not directly associated therewith for cutting, or a single workpiece loaded on a main spindle is subjected to cutting operations by means of a plurality of tool rests. By virtue of a range specification command G10 for specifically setting a plottable range of each tool rest, a plottable range is imparted to each of the tool rests (S3, S4), and then the plottable range for each of the tool rests is displayed on either the left half (13a) or the right half (13b) of the display screen (13) depending on the operating position of each tool rest, or depending on whether each tool rest lies on the side of a first main spindle (14) or on the side of a second main spindle (16), thereby accurately simulating a path of the tool performing an actual machining operation and the state of cutting.

Abstract: A contour configuration machining system of an interactive numerical control apparatus is provided for carrying out a machining operation by a lathe by programming a predetermined contour configuration based on configuration data of straight lines, arcs and the like. A cutting direction (9) is independently set on a display (1) for each of the above configuration data and the machining operation is carried out by moving a tool according to the set cutting direction, whereby the machining efficiency is improved when a configuration composed of a series of contours is to be machined.

Abstract: A bumper structure for a vehicle is disclosed, which includes a first bracket secured to a front fender panel near an inwardly bent first flange of said front fender panel, a bumper fascia having an inwardly bent second flange which is mated with the first flange, the second flange being divided into upper and lower portions leaving therebetween a slit, a main retainer extending along the lower portion of the second flange, a sub-retainer having a second bracket which is to be mated with the first bracket, a first structure for achieving a pivotal connection between the first flange, the lower portion of the second flange, the sub-retainer and the main retainer, and a second structure for connecting the upper portion of the second flange to the sub-retainer.

Abstract: An arbitrarily shaped workpiece machining method of machining a workpiece having arbitrarily shaped machining portions defined by closed curves of a pond, an island and the like is disclosed, wherein boundary meshes (9a, 9b) having center lines through which a contour passes are created, and the arbitrarily shaped workpiece is machined by horizontally machining portions between the boundary meshes (9a, 9b).With the above arrangement, the arbitrarily shaped workpiece can be machined without the need for an automatic program creation device or the like.