Based on the considerations both of present development of information processing, measuring and automatic control technique and of future automatic machining system, a model of computer-adaptive controlled machining system has been proposed and experimented for lathe work as an example. The model system has been constructed connecting a control computer for which a newly developed software system has been implemented with an adaptive controlled lathe.
The experiment has shown that the system, in which main three functions, that is, (1) conversational command and input, automatic tool path decision and direct control (conversational direct computer control), (2) cutting force control by automatic decision of feed rate in rough cutting and (3) dimensional accuracy control by automatic correction of depth of cut in finish cutting, can connectedly operate, is effective to a higher leveled automatic machining.
In this report, method, functions and experimental results of conversational direct computer control are shown, that is, (1) one unique lathe work system, which accepts conversational input data of machining specifications through a typewriter and cuts a part automatically, has been functioned, and (2) as a result of experiments for various workpieces, required time from programming_ till beginning of operation is less than 50% of that of conventional NC lathe, etc.
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