Six-axis machine tool

摘要: A machine such as a tool includes pair of spaced platforms. One platform (11, 31, 185, 72, 159, 142) may mount an operator in spindle and the other platforms (10, 20, 180, 170, 144, 163) object workpiece. The are joined by six powered extensible legs (20-25, 40-45, 64-69, 145-150, 166, 182-84, 187-89) to respective universal joints. length is individually manipulated vary position and, therefore, relative each axes. be hydraulic cylinders (20-25) or recirculating ball screw driven (195, 197, 198). distance between measured separate instrument arms (130, 131, 171) which join use digital device (238, 240) measure extension contraction laser interferometer (267) for that purpose. changes used generate signals control legs. method also disclosed converting part program coordinate block instructions into varying