Boots – shoes – and leggings
Patent
1982-11-15
1985-08-06
Ruggiero, Joseph
Boots, shoes, and leggings
364167, 364191, 364900, G06F 1546, G05B 1918
Patent
active
045340013
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a numerical control system, and more particularly to a numerical control system, in which a memory within a numerical control apparatus can be utilized in an effective manner.
A numerical control apparatus (hereinafter, referred to as "NC") reads out machining data in succession and performs predetermined numerical control processing on the basis of the machining data, to thereby machine a workpiece as programmed.
A machining data input method has heretofore been such that a machining program is punched in a paper tape beforehand and that each time the numerical control processing based on the machining data of one block ends, the machining data of the next block is read out by means of a tape reader. Since, however, such a method cannot realize numerical control processing at high speed, a method referred to as "memory operation" has recently come into widespread use. The memory operation is such that a machining program recorded on an external storage medium, e.g., a paper tape, is previously stored in a memory built in the NC, and the machining data is successively read out of the memory at the time of numerical control processing. According to such a memory operation method, a high-speed numerical control processing becomes possible. However, the capacity of the memory must be made large in order to store a long machining program, and this has led to such disadvantages such as high cost, etc.
SUMMARY OF THE INVENTION
The present invention has an object to provide a numerical control system which can utilize a memory effectively, in other words, which can store larger quantities of machining data than in the prior art, in a memory of limited capacity.
The present invention provides a numerical control system wherein a memory is sectioned into, at least, a command area for storing a plurality of machining commands and a data area for storing movement data corresponding to various target positions or movement values and wherein among the machining commands, at least those concerning movements are constructed of alphabetic letters indicating moving directions and data numbers corresponding to memory locations storing the movement data. When a predetermined machining command has been read out from the command area, the movement data is read out from the memory location corresponding to the data number of this machining command, and a tool or a table is moved on the basis of this movement data. In the numerical control system wherein transfer commands for "read" and "write" and operation commands, the operands of which are data numbers, are set as machining commands, and when these commands are properly arranged in a machining program, the movement data stored in a data area is changed using these commands, and a tool or the like is moved using the changed movement data.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 1 and 2 are diagrams for elucidating the outline of the present invention;
FIG. 3 is a block diagram of an embodiment of the present invention;
FIGS. 4 and 5 are diagrams of another embodiment in which transfer commands and operation commands are set as machining commands, movement data is changed using these commands, and positional control is performed using the changed movement data; and
FIG 6 is a flow diagram of the operation associated with FIGS. 4 and 5.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In order to elucidate the present invention more specifically, embodiments of the present invention will now be described in detail with reference to the drawings.
FIGS. 1 and 2 are explanatory diagrams for elucidating the outline of the present invention. In FIGS. 1 and 2, numerals 101 and 102 designate a command area and a data area which constitute a memory built into an NC, respectively. That is, the memory built in the NC is sectioned into, at least, the command area 101 and the data area 102. Machining commands (Command 1, Command 2, . . . ) which have a command form peculiar to the present invention, to be described later, are s
REFERENCES:
patent: 4051794 (1977-10-01), Herzer et al.
patent: 4116143 (1978-09-01), Manabe
patent: 4201144 (1980-05-01), Manabe et al.
patent: 4218982 (1980-08-01), Daido et al.
patent: 4396974 (1983-08-01), Imazeki et al.
Kiya Nobuyuki
Nozawa Ryoichiro
Fanuc Ltd.
Ruggiero Joseph
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