CA1246721A - Central controlling system for n.c machines group - Google Patents

Abstract

SPECIFICATION

TITLE OF THE INVENTION
Central controlling system for N.C machines group ABSTRACT OF THE DISCLOSURE
The present invention relates to a central controlling system for a program in the field of a machine tool; and more particularly relates to a computer circuit connected to as to enable to demand different data optionally from each of N.C
machines wherein said combined circuit enables to control a combined program with different working through one operator by simply connecting said circuit to a number of said N.C
machines in actuation and further enables to simplify the compilation of a data program even when N.C data are being transmitted.
BACKGROUND OF THE INVENTION

The present invention relates to a central controlling computer circuit in the field of machine tools.
As is publicly known, the conventional N.C machines

Description

124672~

SPECI~I CA TI ON

TITI,E OF THE INVENTION

Central controlling system for N.C machines group ABSTRACT O~ THE DISCI.OSURE

The present invention relates to a central controlling system for a program in the field of a machine tool; and more particularly relates to a computer circuit connected 80 as to enable to demand different data optionally from each of N.C
machines wherein aaid combined circuit enables to control a combined program with different working through one operator by simply connecting said circuit to a number of said N.C
machines in actuation and further enables to simplify the compilation of a data program even when N.C data are being transmitted.
BACKGROUND OF THE INVENTION

The present invention relates to a central controlling computer circuit in the field of machine tools.
As is publicly known, the conventional N.C machines - 1 _ .

lZ4~;~Zl read our operational data from a tape or a disk provided therewith and accordingly it is compelled to replace a tape presently in use whenever an operational process i8 changed or different. For that reason, a surplus storage æpace is inevitably required and also it is necessary to cope with a rapid consumption of a tape due to repeated use thereof In addition thereto, a great deal of work ha~ convention-ally been put in a compilation of a tape for a program in combined operations with a plurality of processes; snd thus a settlement for a problem of increased indirect charge on a production cost as mentioned above is widely required.

SUMMA~Y OF THE INVENTION

The present invention relates to a central controlling system for a program in the field of a machine tool.
Such a sy~tem as above i8 the so-called auxiliary computer circuit for a plurality of N.C machine~ In more detail, the present invention relates to the above-mentioned computer circuit of an extended terminal system, wherein a large quantity of data are linked in a host computer ~ubstituted with a reader ior reading out a tape or a disk ior the data provided with conventional N.C machines through an optical fiber and accordingly R plurality of N.C machines~
group~ of all kinds intended for use such, for example, as lZ4f~721 a milling machine, a drilling machine, an engine lathe, a robot or a rooter enable to control a machinery operation in response to (450 points, 480 kinds) an optional and different requirement (by manual or bar code signal) from such N.C units, at least 16 sets and also at a remote place at least 100 meter basically, of the above-mentioned machines.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a circuit constituent diagram of a computer system according to the present invention.
; Figure 2 i8 a circuit constituent diagram for compiling N.C data by applying said ~ystem according to the present invention.
Figure 3 is a circuit constituent diagram when a system I
calls data by reading out an external signal except the command of an operator.

DESCRIPTIO~ OF THE PREFERRED EMBODIMENT
The present invention provides a central control for a computer system easily enabling in a continuous process a compilation of the control and inspection of a program data for a number of N.C machines disposed at a remote place, including the preparation and correction thereof.

~: ~
;~ - 3 -~ 721 Hereinafter, embodiment according to the pre~ent invention will be described with reference to a computer block diagram of combined circuits based upon the thought of present invention.
Fig. l is a constituent diagram wherein the computer system I
is connected to an optional N.C machine 14 providing with a conventional tape for N.C data.
Said system I is composed of an interface 2 of input and output, an interface 3 for communication, a memory 5 for N.C
data presently in working, CPU 4 for controlling the trans-mission and reception of data between said 2,3 and 5, thehost computer 6 for data, a main memory 7 acting on said main element~, an operation box 8 of a maneuverer and the other ~ections, That is to say, said interface 2 Or input and output enabling to correspond to an interface for reading out the tspe of said N.C machine 14 is connected to the operation ; box 8 for control providing with an usual key board type reader and, a connector 9 for connecting of tape reader and the under-mentioned connector lO for receiving an external signal (Fig, 3) are disposed between ~aid N.C machine 14 and interface 2.
Said interface 2 and the interface 3 used ior communica-tion for transmitting and receiving the data in the host side for controlling data are connected to each other as illustrated;
and the memory 5 used for the data presently in actuation and . ..

lZ~721 the above-mentioned CPV 4 are connected between said interface 2 and 3; thus the command of input and output of the data and further the compilation with respect to preparation and correction of a data program at the side of the host can be carried out.
In a constitution of the above-mentioned system, the circuit assembled by employing the members as listed in the following Table is responded to a number of N.C machines in the present embodiment .
Multi Bus:
CPU. Board of a base plate with 9iX (6) layers Operation Module, including SIO 2 channel 64 KBRAM, 16 KBROM

SIO Board:

2 sheets of SIO Board with 8 channel 8 inches double density floppy (lM ~yte) Winchester. Hard disk 20MB
CRT. Pull. Key Board (Key. 16 kinds) Extended terminal:
with Optic~l fiber, lOOm Transfer System (interface 3 for communication) .......... RS 232C
Data transfer speed ........ 110 ~ 19,20Q BPS

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Synergism obtainable from the circuit thus combined according to the present in~ention will be described as set forth hereinafter.
~ hat is to 9ay~ in the above-mentioned connection, when Q maneuverer inputs the data name or operational program name to be necessitatea through the operation box 8, CPU 4 for controlling the data between the interface 2 of input snd output, the interface 3 for communication and the memory 5 demands said necessary data to the host computer 6; and accordingly a computer 6 transmits said data to the memory 5 in wor~ing from a memory 7.
When said data has been transmitted thereto, the interface 2 i8 in a state of automatically waiting for a command to be given rrom the N.C machine 14; and accordingly said CPU 4 transmits the data within the memory 5 to N.C machine 14 through each of ~aid lnterface 2, a plug 9 and a plug 11 when such command is given.
Therefore, said N C machine 14 may control a machine tool 15 by obtaining the data presently operating.
Thus, when the N.C machine 14 has fini~hed one of the de~ired processes, CPU 4 determines the existence of a subsequent oommand through said memory 5, ~ y a subsequent command, CPU 4 will demand the host computer 6 of the data thereof Therefore, the data of the above-mentioned subsequent demand enter into the memory 5 from the memory 7 and repeats , ~

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124~721 the same action with that of the above-mentioned one process.
Next, when the above-mentioned compilation of the data is carried out by the system I, a maneuverer operates the operation box 8 in preparing for data and accordingly the new data put in are written in the memory 5 through CP~ 4.
In this case it should be preferable to preliminarily name the data thus written because a maneuverer has to call said data later on.
The new data thus named are stored at a main memory 7 through the host computer 6.
In the event that any correction of the data becomes necessary, a maneuverer may correct same through the operation box 8 because the contents of correction are taken into the memory 5 from said memory 7 through the host com~uter 6.
~he data thus corrected are stored within the memory 7.
A constitUtion of a circuit at the time of such compilation as above is shown in Fig . 2 .
According to the present invention, as is clear now, a plurality of data may be taken into said memory 5 simulta-neously and therefore it is possible to prepare a programenabling to read out continuously such program combining more than two (2) kinds of contents or a plurality of data.
Next, an action for calling N.C data by reading out such an external signal, for example, as a bar code 13 except the command from the operation box 8 as described in Fig. 3 will ~Z4~721 be described as set forth hereinafter.
~hat i8 to ~ay, a bar code reader 12 i8 connected to a plug 10 in Fig. 3 When a product providing with the code 13 is made to pass through the reader 12, said reader 12 reads out the code 13 80 that ~aid code 13 is sent to CPU 4 so as to be read out there, Accordingly, in a constitution as illustrated in Fig. 3, it is posRible to demand the host computer 6 of the data designated by the code 13.
Such data as demanded as above send the nece~sary data corresponding to the command irom N.C machine 14 which have been t~ken lnto the memory 5 to said N.C machine 14 snd accordlngly a machine tool 15 may also be controlled in like manner with the abo~e-mentioned embodiments (Fig. 1 and Fig. 2), In the above-mentioned embodiments, a-central controlling system can cover an obJect of 40 sets o~ N.C machine 14 as the maximum limit thereof by setting up more conventional boards.
~y applying the non-e~pensive device with the above-mentioned constitution according to the present invention, it becomes pos~ible to perform a central control for each of N.C data and at the same time it is also possible to simplify a ¢ompilation of a data program considerably even when the data are being trans~erred; snd thus a program control in a continuous pro¢ess coincident with ea¢h of the operstional contents becomes possible.

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Another effect of the present invention can reduce the frequency of use of a conventional tape or disk and furthermore a surplus total space becomes unnecessary; thus an indirect cost necessary for a machinery operation may be reduced widely.

Claims

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:

1. In a program control for N.C. machines, a central controlling system of an N.C. machine group for connecting a host computer with a main memory to a plurality of N.C. mach-ines and simulating a tape reader, said system comprising:
a CPU and first and second interfaces for con-trolling the transmission and reception of N.C. data between said host computer and said N.C. machines, a memory means connected to said CPU for storing N.C. data therein, an operation box consisting of a maneuverer, a connector connected to said second interface for simulating an output connector of a tape reader, said con-nector being connected to said N.C. machines so as to pass N.C. data therebetween, another connector connected to said second inter-face for receiving data from a bar code reader wherein said first interface is optically connected to said host computer so as to thereby perform multiplex data transmission.