Boots – shoes – and leggings
Patent
1995-02-09
1997-03-11
Jankus, Almis R.
Boots, shoes, and leggings
395326, 36447422, G06T 300
Patent
active
056110324
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for specifying a zone such as a movement zone or a prohibition zone of a moving part to be controlled.
2. Description of the Related Art
In general, a numerical control unit, etc., designed for controlling the table, tool rest, etc. of the machine tools such as the lathe, machining center, etc. for machining, specifies the aftermove position and the limit of the movement of the moving part to be controlled by numerical data, thereby specifying the machining range, as well as preventing the interference with other parts of the machining and the overrun of the moving part.
Conventionally, in specifying the aftermove position or movement limit of the moving part to be controlled, in addition to the coordinate data of machine coordinates, machine origin, program coordinates, machining origin, etc., the positional information about the aftermove position or movement limit of the moving part to be controlled has been defined accurately as numerical data, and by using these numerical data, a program for giving work instructions such as machining program has been prepared.
However, with the conventional method for specifying a zone of the movement of the moving part to be controlled, there is a problem such that a large amount of calculation work must be done in order to accurately define the position information about the aftermove position or movement limit of the moving part to be controlled.
The increase in the amount of work for specifying a zone of the movement of the moving part to be controlled causes the increase in the amount of work for preparing work program of, for example, zone machining to be formed using the data of the movement zone, and this entails a secondary problem, that is, the fall of the efficiency of work such as zone machining.
SUMMARY OF THE INVENTION
An object of the present invention is to easily perform the specification of the movement zone or the prohibition zone of the moving part to be controlled without requiring the operation for strictly defining as numerical data the position information about the aftermove position or movement limit of the moving part to be controlled.
According to the method of the present invention, in the method for specifying a zone on a screen, a shape for determining the boundary of the zone is specified by inputting shape data for specifying the shape, and at least one side of the zone divided by the contour of the shape is specified, by which a zone is specified on a screen.
The shape for specifying the zone may be a straight line, a circle, or a circular arc. By specifying the shape, the shape of the zone to be specified on a screen is determined, and the boundary line of the zone specified by the contour of shape specified on the screen is determined. By comparing the coordinate data of a point on the boundary line with the coordinate data of a point in the zone on one side or the other side with respect to the boundary line, the specification of one side of the zone or the specification of the other side can be made. Also, one zone can be made a zone in which movement is prohibited, and one zone can be made a zone in which movement is allowed.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a view of a display screen for specifying a zone by a circle in accordance with the embodiment of the present invention;
FIG. 2 is a view of a display screen for specifying a zone by a straight line in accordance with the embodiment of the present invention;
FIG 3 is a view of a display screen for specifying a zone by a circular arc in accordance with the embodiment of the present invention;
FIG. 4 is a block diagram of a numerical control unit capable of carrying out the embodiment of the present invention;
FIG. 5 is a view of a display screen for specifying a zone by combining straight line zones;
FIG. 6 is a table showing the conditions for specifying a zone by combining straight line zones;
FIG. 7 is a view of a display screen for specifying a zone by combinin
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patent: 5095440 (1992-03-01), Suzuki et al.
patent: 5107414 (1992-04-01), Fukaya et al.
patent: 5193952 (1993-03-01), Tomoo et al.
patent: 5411272 (1995-05-01), Naka et al.
Matsuura Syuji
Yamamuro Kouji
Fanuc Ltd.
Jankus Almis R.
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