| 摘要 |
PURPOSE:To perform adaptive control according to an optimum control pattern suitable for a processing spot and a processing shape, by a method wherein, based on information contained in numerical control data, automatic switching between load-specifying type adaptive control and load-following type adaptive control. CONSTITUTION:Based on tool information contained in numerical control data, a discriminating means D discriminates whether load-specifying control or load- following control is to be effected. When it is decided that load-specifying control is to be made, a specified constant target load value is read by a target load value reading means E, and a speed control means F regulates a feed speed so that a load detected by a processing load detecting means A is regulated to a specified value. When it is discriminated that load-following control is to be made, a target load value changed with the progress of processing set and stored in a set memory means C is orderly read by the speed control means F, and the speed control means F regulates a feed speed so that a load detected by the processing load detecting means A is adjusted to a target load value from the set memory means C.
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