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History of Numerical Control
The Numerical Control Process
13 other sections not shown
accuracy assembly automatic axes axis basic binary block boring capable character chine circuit clamps command computer program configuration contouring control medium control system control unit conventional coordinate system curve cutter path cutting cycle decimal defined developed device digit dimension drilling electrical electronic engineering drawing error EXAPT feed rate feedback five-axis fixture format function holes in./min incremental input inspection integrated circuits interpolation lead screw linear machine control machine slide magnetic tape manual manufacturing milling cutter milling machine motion motor move N/C equipment N/C machine tool N/C process N/C system operation output paper tape parabola performed phase posi positioning system postprocessor preset produced pulses punched cards punched tape riveting riveting machine rotation sequence servo Servomechanisms setup shown in Fig signal specific speed spindle standard storage surface switches tape reader tion tool change transducer velocity welding workpiece zero