Fanuc Corporation

Yoshito Miyazaki

Hiroshige Ando

Kouji Hada

Yasumichi Sakoda

Takaaki Komatsu

Takahiko Matsushima

Masao Kamiguchi

Kouhei Yoshida

Hideki Otsuki

Takahiro Baba

Akira Koizumi

Hitoshi Hirota

Kei Hagihara

Susumu Itou

Takaaki Itou

A processing executing unit of a control device is configured to set the number of blocks to be read indicating the number of blocks to be read from a storage unit per unit time and a fan rotational speed of a fan motor in accordance with the amount of allowable machining error or a feed rate of a table that is inputted by an operator, and further configured to read a machining program from the storage unit block by block at the set number of blocks to be read and cause a fan control unit to perform a process to drive the fan motor at the set fan rotational speed.

Control device and control method

A machine learning device includes a model data selection unit to select, under a change in ambient temperature of a manufacturing machine, a learned model for additional learning of a thermal displacement compensation amount in each axis included in the manufacturing machine with respect to an operation state of the manufacturing machine, and a learned model storage unit to associate and store a pattern of an ambient temperature change curve indicating a transition of a change in the ambient temperature of the manufacturing machine and the learned model that is learned under the change in the ambient temperature. Based on the ambient temperature change curve stored in the learned model storage unit, the model data selection unit selects a learned model suitable for the additional learning of the thermal displacement compensation amount in each axis included in the manufacturing machine with respect to the operation state of the manufacturing machine.

Thermal displacement compensation device

An electric device according to the present invention includes: a first power source which supplies electric power to a predetermined load unit; a second power source which supplies electric power from an outside power source to the load unit; a switching unit which switches the first power source and the second power source which supply electric power to the predetermined load unit; a time measuring unit which measures the time; a voltage measuring unit which measures terminal voltage of the first power source; a storage unit which stores the terminal voltage of the first power source measured by the measuring unit and the time when the terminal voltage of the first power source is measured based on the time measuring unit; a time change rate calculating unit which calculates a time change rate of the terminal voltage of the first power source stored in the storage unit; and an informing unit which performs informing operation with respect to a residual capacity of the first power source in accordance with the time change rate of the terminal voltage of the first power source calculated by the time change rate calculating unit.

Electric device having function of informing battery residual capacity

Various neural network models are constructed flexibly on a learning circuit. A machine learning model construction device includes a learning circuit () capable of constructed a neural network model according to a setting value, and a control means () capable of adjusting the setting value so as to become a value for constructing a predetermined neural network model in the learning circuit ().

Machine learning model construction device, numerical control, machine learning model construction method, and non-transitory computer readable medium encoded with a machine learning model construction program

A machine learning device for detecting an indication of an occurrence of chatter in a tool for a machine tool, includes a state observation unit which observes at least one state variable of a vibration of the machine tool itself, a vibration of a building in which the machine tool is installed, an audible sound, an acoustic emission and a motor control current value of the machine tool, in addition to a vibration of the tool; and a learning unit which generates a learning model based on the state variable observed by the state observation unit.

Machine learning device, CNC device and machine learning method for detecting indication of occurrence of chatter in tool for machine tool

A numerical control device includes a multicore CPU for outputting a position command value of a servomotor, an ASIC including a servo controller, which outputs a current command value to an amplifier for driving the servomotor, and another processor, and a DSP for reading the position command value and controlling the servomotor such that the servomotor moves to a position indicated by the position command value. The CPU and the ASIC are connected through a plurality of serial interfaces.

Numerical control device having improved servo control performance

A high-speed converter includes at least one converter among a first converter for converting an analog signal into a digital value; a second converter for converting a digital value into an analog signal; a third converter for converting an electrical signal into a digital signal; and a fourth converter for converting a digital signal into an electrical signal, and causes the at least one converter to operate by a method based on information acquired via a network.

High-speed converter, measurement system, and computer-readable medium

A numerical control device includes a CPU for outputting a position command value of a servomotor; an IC including a servo controller for outputting a current command value to an amplifier for driving the servomotor, and an I/O unit for inputting and outputting an external signal; a DSP for reading the position command value and performing control so as to move the servomotor to a position indicated by the position command value; and an inter-device communication path between the CPU and the IC. The IC includes an internal bus connected to a communication interface connected to the inter-device communication path, and the I/O unit; and an internal communication path for directly transmitting a signal between the servo controller and the I/O unit without passing through the internal bus.

Numerical control device for realizing high-speed input and output of external signal in servo controller

When a communication abnormality detection unit in a numerical control device body detects communication abnormality in IO communication, a command transmission unit transmits a command requesting for making a reply to the numerical control device body with alarm information recorded in a recording unit of each IO unit simultaneously to all the IO units, and only the IO unit where the recording unit records the alarm information makes a reply with the alarm information.

Numerical control device acquiring alarm information from connected IO unit

In a numerical controller including a DNC operation unit, an automatic operation execution unit includes a buffering completion checking result holding unit for checking whether a portion of a machining program to be buffered includes a buffering point, an execution checking result holding unit for checking whether a portion of the machining program to be executed includes a buffering point, a comparison unit for comparing the buffering completion checking result holding unit with the execution checking result holding unit, and an execution unit for performing any one of continuation, suspension, and resumption of the automatic operation based on a result of the comparison.

Numerical controller including DNC operation unit

In a numerical control system including a numerical controller and a plurality of I/O units, a serial communication signal monitoring circuit is included inside the I/O unit to monitor a serial communication signal (data and an idle signal). When a state is detected in which a serial communication signal is high or low for a predetermined time or longer, the numerical control system acknowledges the state as disconnection of the serial communication signal, and generates a reset pulse signal to reset an internal register of the I/O unit. With this configuration, when the power supply of the numerical controller is turned off/on, it is unnecessary to turn off/on the power supply of the I/O unit.

Numerical control system including internal register self-reset function with serial communication signal monitoring

In a communication system in which a numerical controller and IO units each having a communication controller are connected, communication data is transmitted and received between the numerical controller and the communication controller of the IO units. The communication controller returns the communication data to the numerical controller when an ID contained in the communication data received from the numerical controller matches an ID set to an ID setting unit of the communication controller.

Safety communication system using IO units communicating with a plurality of CPUS

A numerical control system exchanges input/output signals between a numerical controller and an IO unit and the IO unit includes a first control unit that changes an idle signal output from the IO unit using an input signal as a trigger to a specific waveform pattern signal and when the specific waveform pattern signal is received, transmits the specific waveform pattern signal to a former side. The numerical controller includes a second control unit that outputs an interrupt signal when the specific waveform pattern signal is received.

Numerical control system

In a numerical control system in which a numerical controller and an I/O unit perform serial data communication through a communication line, a counter of the I/O unit starts time measurement with an input signal from an in-machine measurement device as a trigger and stops counting at the start of transmission of DI data. The I/O unit transmits a flag indicative of input of the input signal as a trigger and a value in the stopped counter to the numerical controller. Based on a time value measured by a timer and the counter value, the numerical controller calculates the time of input of the input signal.

Numerical control system using I/O unit for time measurement

A numerical controller is chain-connected with a plurality of I/O units so that it transmits DI/DO signals to and receives DI/DO signals from the I/O units by master-slave communication. The numerical controller counts signals generated by a timer circuit up to a predetermined number and sets, from among the plurality of I/O units, an I/O unit with which transfer of the DI/DO signals is to be performed for each count value. The DI/DO signals of the set I/O units are transferred according to the count value.

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Yamanashi, Japan

Yoshito Miyazaki