Automatic programming apparatus and control command generating method

An automatic programming apparatus comprising:

• a machining-process-data generating unit configured to generate second machining shapes for each of machining processes from each of an externally-input plurality of first machining shapes;
• a machining-shape adjusting unit configured to extend, among two of the second machining shapes having tool directions different from each other, the tool directions being directions that a tool is fed during machining, among the second machining shapes, when a bottom surface section of one machining shape of the two machining shapes is in contact with the other machining shape, the bottom surface section of the one machining shape in the tool direction of the one machining shape, delete, from the other machining shape that overlaps the one machining shape because of the extension of the one machining shape, a portion of the overlap, and generate a third machining shape;
• and
• a control-command generating unit configured to generate, based on the third machining shape, a control command for causing a machine tool to operate.

A control command generating method comprising:

• a machining-shape generating step of generating second machining shapes for each of machining processes from each of a plurality of first machining shapes input from an outside;
• a machining-order editing step of receiving an input of execution order of the machining processes;
• a machining-shape adjusting step of extending, among a plurality of the second machining shapes having a same tool direction, which is a direction that a tool is fed during machining, one of the second machining shapes in a direction opposite to the tool direction to pierce through, another machining shape being set after the one second machining shape in execution order of the machining processes and located in a direction opposite to the tool direction viewed from the one second machining shape, deleting, from the other machining shape that overlaps the one second machining shape because of the extending of the one second machining shape, a portion of the overlap, and generating a third machining shape;
• and
• a control command step of generating, based on the third machining shape and the input execution order, a control command for causing a machine tool to operate.