APPARATUS FOR CONTROLLING TORCH FOR PLASMA ARC

摘要: PURPOSE:To improve working efficiency by continuing the work with safety control separating a torch prescribed distance from base material at time of detecting powering voltage between and generation double arcs. CONSTITUTION:At inputting deviation signal aimed stand-off calculated in computing element 9 actual to correcting generator 15, signal, which becomes zero, is outputted robot driving 13. At same time, cutting velocity controlled so as become velocity. When arcs generate, nozzle lowered near zero volt lowering lower than set voltage, arc deciding instrument 14, inputted 13, corrected value, disappears. In this current density plasma correction.