Numerical controller

Abstract

PURPOSE: To enable synchronous tap machining by selecting a control system according to the constitution of a main shaft and a Z shaft. CONSTITUTION: For synchronous control over the main shaft 20 an Z axis, the numerical controller is provided with a 1st control means which performs feedforward control based upon a ramp function when a motor 17 for main shaft driving and a motor 22 for Z-axis driving are accelerated and decelerated, and a 2nd control means which matches the acceleration/deceleration pattern and gain of the Z-axis with the acceleration/deceleration pattern and gain of the main shaft 20. Then those control means are switched by switching devices 41-43. The control systems can be selected according to the constitution of the main shaft and Z shaft. Consequently, the high-precision synchronous tap machining is performed even by a machine tool whose main shaft and Z-axis differ in constitution. COPYRIGHT: (C)1992,JPO&Japio

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    JP-2011212788-AOctober 27, 2011Fanuc Ltd, ファナック株式会社タッピング加工動作を行うタッピング加工装置