Boots – shoes – and leggings
Patent
1985-02-12
1987-02-24
Ruggiero, Joseph
Boots, shoes, and leggings
318626, 364171, 364184, G06F 1546
Patent
active
046462473
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a numerical control apparatus for performing a stored stroke limit function by graphic display to check a region into which a tool of a machine tool or the like cannot be moved.
A conventional numerical control apparatus has a stored stroke limit check function for checking a region into which a tool of a machine tool or the like cannot be moved. This function can be performed when the tool cannot be actually moved into a region upon reception of an NC machining program instruction. In such a case, unless machining is actually performed, the control apparatus cannot determine whether or not this particular NC machining program instruction represents a region into which the tool cannot be moved, resulting in inconvenience.
SUMMARY OF THE INVENTION
It is an object of the present invention to resolve the conventional drawback described above, and to provide a numerical control apparatus with a graphic stored stroke limit check function so as to check a stored stroke limit by utilizing a graphic display unit.
It is another object of the present invention to provide a numerical control apparatus with a stored stroke check function, wherein an alarm is generated when a locus of a tool which is drawn on a screen exceeds a stored stroke limit.
In order to achieve the above objects of the present invention, there is provided a numerical control apparatus comprising: means for inputting a stored stroke limit range; storage means for storing the stored stroke limit range entered by the input means and an NC machining program; graphic processing means for reading out the stored stroke limit range and the NC machining program from the storage means, and for causing a graphic display unit to display the stored stroke limit range and a locus of a tool; and stored stroke limit determining means for determining whether or not the locus of the tool falls within the stored stroke limit range, whereby drawing on the locus of the tool is stopped when the locus of the tool falls outside the stored stroke limit range, a message is displayed on the graphic display unit, and a lamp is turned on or an alarm sound is generated, thereby signalling to an operator that the NC machining program represents the region into which the tool is not to be moved.
According to the present invention, since the stored stroke limit range and the locus of the tool which is traced by the NC machining program are displayed on the graphic display unit, the operator can easily know a block of the NC machining program in which the locus of the tool falls outside the stored stroke limit. In this manner, actual machining need not be performed, and machining efficiency of the machine tool or the like under the control of the numerical control apparatus can be greatly improved.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram of a numerical control apparatus according to an embodiment of the present invention;
FIG. 2 is a flow chart for explaining the operation of the apparatus of FIG. 1; and
FIG. 3 is a representation of actual display on the graphic display unit.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 is a block diagram of a numerical control apparatus according to an embodiment of the present invention. Referring to FIG. 1, reference numeral 1 denotes a central processing unit (to be referred to as a CPU hereinafter); 2, a ROM for storing a control program for controlling the overall operation of the numerical control apparatus; 3, a RAM for storing processed results for arithmetic operations or the like; and 4, a nonvolatile memory used as storage means for storing an NC processing program and a stored stroke limit range. Reference numeral 5 denotes an input/output circuit connected to a servo motor or the like, in a machine tool or the like; 6, a graphic display unit for displaying the stored stroke limit range, a locus of a tool and a machining shape; 7, a manual input unit serving as stored stroke limit input means for inputting the stored stroke limit r
REFERENCES:
patent: 4481568 (1984-11-01), Inaba et al.
patent: 4482968 (1984-11-01), Inaba et al.
patent: 4489377 (1984-12-01), Mawyer et al.
patent: 4513366 (1985-04-01), Munekata et al.
patent: 4521860 (1985-06-01), Kanematsu et al.
patent: 4530046 (1985-07-01), Munekata et al.
Fanuc Ltd.
Ruggiero Joseph
LandOfFree
Numerical control apparatus with function graphic stored stroke does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Numerical control apparatus with function graphic stored stroke , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical control apparatus with function graphic stored stroke will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-113582