Method of NC data preparation for repeated patterns

Details Method of NC data preparation for repeated patterns Method of NC data preparation for repeated patterns

1991-10-17

1995-05-09

Jankus, Almis

Boots, shoes, and leggings

395141, 395155, 395161, 36447424, G06F 1562

Patent

active

054148073

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to a multiple-layout designation method capable of rapidly and easily effecting preparatory work for automatic preparation of NC data which is employed for machining of machined objects of an identical contour.
2. Description of the Related Art
It has been conventionally known to arrange contours, which are identical to each other, in position on a graphic display by utilizing a multiple-layout (multi-cavity) duplication method for duplicating a desired number of times a single contour displayed on the graphic display. This technique has been adopted, e.g., in the field of metal mold designing. Also, it has been known to prepare numerical control (NC) data employed for machining of machined objects, having contours arranged on the display in the above manner, by the use of an automatic programming device. In this case, an operator makes the programming device recognize the original contour and each of the duplicated contours, defines a name of each of the contours, and then sequentially sets machining conditions respectively associated with these names. After such preparatory work is finished, NC data associated with each of the names is automatically prepared by means of the programming device based on the contour and the machining condition concerned.
According to the conventional method, it is required to individually define the names respectively corresponding to the contours which are identical to each other, and to set the machining conditions respectively associated with these names. Thus, the preparatory work for the NC data preparation requires time and labor.


SUMMARY OF THE INVENTION

It is an object of the present invention to provide a multiple-layout designation method by which preparatory work for automatic NC data preparation can be performed rapidly and easily.
To achieve the aforementioned object, according to the present invention, a multiple-layout designation method for automatic NC data preparation is provided, which comprises the steps of: (a) duplicating, on a graphic display, an arbitrary one original contour manually selected from original contours displayed on the graphic display, to thereby generate at least one duplicated contour; (b) generating contour data representative of a contour group consisting of the one original contour and at least one duplicated contour; (c) manually defining a name of the contour group; (d) manually setting machining condition data associated with the contour group name; and (e) automatically and collectively preparing, based on the contour data and the machining condition data, NC data employed for machining associated with machining of the contour group.
As described above, according to the present invention, the NC data employed for the machining associated with the contour group is automatically and collectively prepared based on the contour data representative of the: contour group, which consists of an arbitrary one contour manually selected from original contours displayed on the graphic display and at least one duplicated contour obtained by duplicating the original contour, and the machining condition data manually set in relation to the contour group name defined manually. Thus, all the preparatory work required for the preparation of the NC data, which is employed for machining associated with the contour group, can be carried out rapidly and easily by only performing the name definition and the machining condition setting once for each. This makes it possible to greatly reduce time and labor needed for the preparatory work.


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram showing an essential part of an automatic programming device for embodying a multiple-layout designation method according to one embodiment of the present invention;
FIG. 2 is a flow chart showing a multiple-layout designation process carried out by the CPU shown in FIG. 1; and
FIG. 3 is a diagram showing, by way of example, various contours displayed on the CRT shown in

REFERENCES:
patent: 4740902 (1988-04-01), Yoneda et al.
patent: 4962472 (1990-10-01), Seki et al.
patent: 5101363 (1992-03-01), Rutkowski

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