Fanuc Corporation

Katsunori Nagano

Takahiko Endo

Motohiko Itou

A numerical controller capable of automatically calculating a tool path based on a command of a cutting path in skiving machining includes a command analysis unit that determines whether a block read from a machining program corresponds to a skiving machining command, a skiving machining command data calculation unit that calculates a path and a feed speed of a tool based on a path of a cutting point and a feed speed of the cutting point commanded by the skiving machining command when the command analysis unit determines that the block corresponds to the skiving machining command, and an interpolation unit that calculates interpolation data according to a progress rate of the block during actual machining based on the path of the tool calculated by the skiving machining command data calculation unit and a coordinate value during actual machining.

Numerical controller

In a numerical controller that controls a plurality of machine control axes based on a machining program, priorities are assigned to operations of the plurality of machine control axes, and the numerical controller includes: a command analyzing portion that analyzes the machining program and generates command data which controls the plurality of machine control axes; and a block execution start determining portion that determines whether interference occurs in the operations of the plurality of machine control axes based on the command data and, if a determination is made that interference occurs, adjusts timing with which a command which controls an operation of a machine control axis of lower priority of the plurality of machine control axes that interfere with each other is started to a time at which the interference does not occur and positioning is completed in the shortest time.

A numerical control apparatus having tool cutting edge detecting unit for detecting a cutting edge position of a tool mounted on a tool rest, comprises detection signal determining unit for determining, as effective, only a detection signal that is first inputted from among a plurality of detection signals which are continuously inputted from the tool cutting edge detecting unit. A signal which is detected until a preset time is elapsed after a first signal is received when the tool comes into contact with the touch sensor, and/or until the tool moves a predetermined distance, is determined as erroneous detection by the detection signal determining unit, and the signal is disenabled.

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Yamanashi, Japan

Katsunori Nagano