Keyway machining path creating device for wire electric discharge machine

A machining path creating device for wire electric discharge machines, which creates a machining path for machining a keyway in a side surface of a round hole, the machining path creating device comprising:

• a keyway shape input unit that inputs a shape of a keyway to be machined;
• a hole shape input unit that inputs a diameter and a center position of the round hole;
• and
• a machining path creating unit that creates a machining path, wherein
• the machining path creating unit compares a keyway depth input by the keyway shape input unit with the diameter of the round hole input by the hole shape input unit,
• when the input keyway depth is smaller than the diameter of the round hole, the machining path creating unit determines the input keyway depth as a cut depth of the keyway which is a distance from the hole side surface to a keyway bottom,
• when the input keyway depth is larger than the diameter of the round hole, the machining path creating unit determines a difference between the input keyway depth and the diameter of the round hole as the cut depth of the keyway, and
• the machining path creating unit measures the center position of the round hole by bringing a wire electrode or a touch probe into contact with a workpiece to thereby create the machining path.

A machining path creating device for wire electric discharge machines, which creates a machining path for machining a keyway in a side surface of a round hole, the machining path creating device comprising:

• a keyway shape input unit that inputs a shape of a keyway to be machined;
• a hole shape input unit that inputs a diameter and a center position of the round hole;
• and
• a machining path creating unit that creates a machining path, wherein
• the machining path creating unit compares a keyway depth and a keyway width input by the keyway shape input unit,
• when a ratio or difference between the input keyway depth and the input keyway width does not exceed a predetermined threshold, the machining path creating unit creates the machining path such that the keyway depth is used as a cut depth of the keyway which is a distance from the hole side surface to a keyway bottom, and
• when the ratio or difference between the input keyway depth and the input keyway width exceeds the threshold, the machining path creating unit creates the machining path such that a difference between the keyway depth and the diameter of the round hole is used as the cut depth of the keyway.

A machining path creating device for wire electric discharge machines, which creates a machining path for machining a keyway in a side surface of a round hole, the machining path creating device comprising:

• a keyway shape input unit that inputs a shape of a keyway to be machined;
• a hole shape input unit that inputs a diameter of the round hole;
• and
• a machining path creating unit that creates a machining path, wherein
• the machining path creating unit compares a keyway depth and a keyway width input by the keyway shape input unit,
• when a ratio or difference between the input keyway depth and the input keyway width does not exceed a predetermined threshold, the machining path creating unit determines the keyway depth as a cut depth of the keyway which is a distance from the hole side surface to a keyway bottom,
• when the ratio or difference between the input keyway depth and the input keyway width exceeds the threshold, the machining path creating unit determines a difference between the keyway depth and the diameter of the round hole as the cut depth of the keyway, and
• the machining path creating unit measures a center position of the round hole by bringing a wire electrode or a touch probe into contact with a workpiece to thereby create the machining path.