Jump control apparatus for electric discharge shaping/profiling machine

A jump control apparatus for an electric discharge shaping/profiling machine for machining a workpiece by applying a pulse voltage across a tool electrode mounted at one end of a main spindle and the workpiece disposed in opposition to the tool electrode with a processing liquid intervening therebetween, the apparatus comprising:

• a feed control unit for controlling a feed quantity of a main spindle to control a vertical position of a tool electrode relative to a workpiece;
• a jump condition estimating unit for estimating jump conditions for effectuating jump motion of the tool electrode for discharging sludge from between the tool electrode and the workpiece in a machining process performed on the workpiece, the jump conditions estimated being input to said feed control unit;
• an input unit for inputting machining conditions considering the jump conditions in precedence to a machining process to be performed on the workpiece;
• and
• a numerical control unit for determining, arithmetically, parameters depending on the machining conditions and input to said jump condition estimating unit, wherein said jump condition estimating unit estimates the jump conditions based on the parameters in precedence to machining of the workpiece.

A jump control apparatus for an electric discharge shaping/profiling machine for machining a workpiece by applying a pulse voltage across a tool electrode mounted at one end of a main spindle and the workpiece disposed in opposition to the tool electrode with a processing liquid intervening therebetween, the apparatus comprising:

• a feed control unit for controlling a feed quantity of a main spindle to control a vertical position of a tool electrode relative to a workpiece;
• a jump condition estimating unit for estimating jump conditions for effectuating jump motion of the tool electrode for discharging sludge from between the tool electrode and the workpiece in a machining process performed on the workpiece, the jump conditions estimated being input to said feed control unit;
• an input unit for inputting machining conditions considering the jump conditions in precedence to a machining process to be performed on the workpiece;
• and
• a numerical control unit for determining, arithmetically, parameters depending on the machining conditions and input to said jump condition estimating unit, wherein said jump condition estimating unit determines values for the jump conditions through inference based on the parameters, upon starting of machining of the workpiece, the values being output.