Jump control method and apparatus for electric
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsTakayuki Nakagawa, Yoshihito Imai
Life of this patent
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Abstract
An electric discharge machining device including an interelectrode servo control unit for controlling an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object, and a jump control unit for controlling a jump operation in which the interelectrode distance is temporarily increased at time intervals or in response to a machining state jump control unit includes a jump locus generation unit for generating a smooth command locus having a frequency component in a frequency range. The jump control unit controls the jump operation by using a smooth command locus generated by the jump locus generation unit.
Claims50
An electric discharge machining device comprising:
- an interelectrode servo control unit which controls an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object;
- and
- a jump control unit which controls a jump operation in which the interelectrode distance is temporarily increased at one of (i) time intervals and (ii) in response to a machining state, wherein the jump control unit
- includes a command locus generation unit which generates a smooth command locus having a frequency component in a frequency range, and
- controls the jump operation using the smooth command locus generated by the command locus generation unit.
An electric discharge machining device comprising:
- an interelectrode servo control unit which controls an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object;
- and
- a jump control unit which controls a jump operation in which the interelectrode distance is temporarily increased at one of (i) time intervals and (ii) in response to a machining state, wherein the jump control unit
- includes a command locus generation unit which generates a smooth command locus having a frequency component in a frequency range except for a frequency range from a first frequency, which is lower than a second frequency, to a third frequency, which is higher than the second frequency, and
- controls the jump operation using the smooth command locus generated by the command locus generation unit.
An electric discharge machining device comprising:
- an interelectrode servo control unit which controls an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object;
- and
- a jump control unit which controls a jump operation in which the interelectrode distance is temporarily increased at one of (i) time intervals and (ii) in response to a machining state, wherein the jump control unit
- includes a command locus generation unit which generates a smooth command locus having a frequency component in a frequency range suppressed to a first value, and
- controls the jump operation using the smooth command locus generated by the command locus generation unit.
An electric discharge machining device comprising:
- an interelectrode servo control unit which controls an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object;
- and
- a jump control unit which controls a jump operation in which the interelectrode distance is temporarily increased at one of (i) time intervals and (ii) in response to a machining state, wherein the jump control unit includes
- a command locus generation unit which generates a smooth command locus having a frequency component in a frequency range from a first frequency, which is lower than a second frequency, to a third frequency, which is higher than the second frequency, suppressed to a first value, and
- controls the jump operation using the smooth command locus generated by the command locus generation unit.
An electric discharge machining method in which an interelectrode servo control unit controls an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object, and a jump control unit controls a jump operation that temporarily increases the interelectrode distance at one of (i) time intervals and (ii) in response to a machining state, the method comprising:
- generating a smooth command locus having a frequency component in a frequency range;
- and
- controlling the jump operation using the smooth command locus generated.
An electric discharge machining method in which an interelectrode servo control unit controls an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object, and a jump control unit controls a jump operation that temporarily increases the interelectrode distance at one of (i) time intervals and (ii) in response to a machining state, the method comprising:
- generating a smooth command locus having a frequency component in a frequency range, except in a frequency range from a first frequency, which is lower than a second frequency, to a third frequency, which is higher than the second frequency;
- and
- controlling the jump operation using the smooth command locus generated.
An electric discharge machining method in which an interelectrode servo control unit controls an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object, and a jump control unit controls a jump operation that temporarily increases the interelectrode distance at one of (i) time intervals and (ii) in response to a machining state, the method comprising:
- generating a smooth command locus having a frequency component in a frequency range suppressed to a first value;
- and
- controlling the jump operation using the smooth command locus generated.
An electric discharge machining method in which an interelectrode servo control unit controls an interelectrode distance between an electrode and an object while applying a voltage across the electrode and the object, and a jump control unit controls a jump operation that temporarily increases the interelectrode distance at one of (i) time intervals and (ii) in response to a machining state, the method comprising:
- generating a smooth command locus having a frequency component in a frequency range from a first frequency, which is lower than a second frequency, to a third frequency, which is higher than the second frequency, suppressed to a first value;
- and
- controlling the jump operation using the smooth command locus generated.
Dependencies are inferred from the claim text.