Fanuc Corporation

Chikara Tango

Daisuke Uenishi

Masahiro Murota

A machine tool capable of easily acquiring the distance between a spindle of a first unit and a holder of a second unit. A machine tool according to one embodiment comprises: relative movement mechanisms which move a table for supporting an object to be machined relatively to a support unit for supporting the first N unit and the second unit: a movement control unit which controls the relative movement mechanisms; a relative position detection unit which detects the position of the table relative to the support unit; and a distance calculation unit which calculates the distance between the first unit and the second unit on the basis of a relative position when the first unit and the table reach a first relative positional relationship and a relative position when the second unit and the table reach a second relative positional relationship.

Machine tool

To provide a numerical controller that can detect a position in a machining program at which a speed control abnormality is likely to occur due to an insufficient look-ahead blocks that are used to determine an acceleration/deceleration operation, and start a look-ahead processing function from the position in parallel with looking ahead at the machining program from the start of the machining program in order to stabilize feed rate, cutting speed and other factors. A numerical controller includes a program execution unit that executes a machining program, a first program look-ahead unit and a second program look-ahead unit that simultaneously look ahead at the machining program from different blocks in the machining program in parallel with execution of the machining program, and a look-ahead allocation unit that divides a storage unit into a first region and a second region and instructs the first program look-ahead unit to perform a look-ahead action of storing look-ahead blocks in the first region and instructs the second program look-ahead unit to perform a look-ahead action of storing look-ahead blocks in the second region.

Numerical control system with distributed look-ahead processing of multiple numerical controllers

To provide a numerical controller that can detect a position in a machining program at which a speed control abnormality is likely to occur due to an insufficient look-ahead blocks that are used to determine an acceleration/deceleration operation, and start a look-ahead processing function from the position in parallel with looking ahead at the machining program from the start of the machining program. A numerical controller includes a program execution unit that executes a machining program, a program look-ahead unit that simultaneously looks ahead at the machining program from different blocks in the machining program in parallel with execution of the machining program and that includes a first program look-ahead unit and a second program look-ahead unit, and a look-ahead allocation unit that divides a storage unit into at least a first region and a second region and instructs the first program look-ahead unit to perform a look-ahead action of storing look-ahead blocks in the first region and instructs the second program look-ahead unit to perform a look-ahead action of storing look-ahead blocks in the second region.

Numerical controller

To provide a numerical controller that can detect the position at which the look-ahead blocks used to determine an acceleration/deceleration operation is insufficient in a machining program in order to stabilize feed rate, cutting speed and other factors. A numerical controller includes a program execution unit that executes a machining program, a program look-ahead unit that looks ahead at the machining program in parallel with execution of the machining program, a theoretical value calculation unit that calculates theoretical values per block in processing time for the machining program from the feed rate of the machine tool and lengths of minute straight lines that make up the machining path followed by the machine tool, a measured value calculation unit that calculates actually measured values per block in the look-ahead time taken by the program look-ahead unit and the processing time for the machining program while the machining program is being executed, and an abnormal block detection unit that detects an abnormal block that is a block at which the result of subtracting the total of the theoretical values from the total of the actually measured values is more than a prescribed value.

To provide a numerical controller that can detect the position at which the look-ahead blocks used to determine an acceleration/deceleration operation is insufficient in a machining program in order to stabilize feed rate, cutting speed and other factors. A numerical controller includes a program execution unit that executes a machining program, a program look-ahead unit that looks ahead at the machining program in parallel with execution of the machining program, a look-ahead blocks calculation unit that calculates a look-ahead blocks, which is the difference between a first sequence number that is the number of a block being executed by the program execution unit and a second sequence number that is the number of a block that is looked ahead by the program look-ahead unit while the machining program is being executed, and an exhaustion block detection unit that detects an exhaustion block, which is a block at which the look-ahead blocks falls below a prescribed value.

To provide a numerical controller that can detect a position in a machining program at which a speed control abnormality is likely to occur due to an insufficient look-ahead blocks that are used to determine an acceleration/deceleration operation, and supplement the look-ahead blocks at that position in order to stabilize feed rate, cutting speed and other factors. A numerical controller includes a required look-ahead blocks setting unit that sets a required look-ahead blocks, which is a look-ahead blocks required to execute a machining program, and an operation limitation unit that compares a look-ahead blocks calculated by a look-ahead blocks calculation unit to the required look-ahead blocks and, if the look-ahead blocks is less than the required look-ahead blocks, limits execution of the machining program until the look-ahead blocks reach the required look-ahead blocks.

To provide a numerical controller that can produce high-quality machining with optimal machining conditions by reducing speed control abnormalities in order to stabilize feed rate, cutting speed and other factors. A numerical controller includes a speed reduction block detection unit that detects a speed reduction block that is a block at which the number of blocks to be looked ahead in a machining program relatively decreases, a speed information storage unit that calculates feed rate at each axis from a table feed rate at the speed reduction block and stores this speed information in a storage unit, and a speed information read unit that reads out the speed information from the storage unit and applies the speed information as the feed rate at each axis.

A chip antiscatter mechanism is included and configured to suppress scattering of chips generated during machining of a machining object. The chip antiscatter mechanism includes chip stirring means configured to stir the chips, by jetting a gas into a dry machining region above a table including the machining object, fluid curtain forming means configured to form a fluid curtain by jetting a fluid such as liquid or gas membranously from above to an outside of the dry machining region so as to surround the dry machining region, and to form a closed region including the dry machining region by the membranous fluid curtain, and discharging means configured to receive and discharge the fluid jetted membranously by the fluid curtain forming means.

A cleaning process optimization device includes a machine learning device that learns a cleaning condition when cleaning an object to be cleaned. The machine learning device includes: a state observation unit that observes cleaning condition data indicating the cleaning condition, and contamination state data indicating a contamination state of the object to be cleaned measured before cleaning as a state variable representing a current state of environment; a determination data acquisition unit that acquires determination data indicating an adequacy determination result on accuracy of a contamination state of the object to be cleaned after cleaning; and a learning unit that learns the cleaning condition when cleaning the object to be cleaned in association with the contamination state data using the state variable and the determination data.

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Yamanashi, Japan

Chikara Tango