Fanuc Corporation

Nobuaki Aizawa

Wei Zhao

Hiroyuki Fujimoto

Tomokazu Kayanuma

Shouki Tani

Nobuhito Oonishi

Eiji Genma

Kouichi Noda

Hidehiro Miyajima

Kunihiro Honma

The purpose is to provide a numerical control device that can easily suppress the occurrence of burrs. The numerical control device comprises: an analysis unit that analyses a processing program for processing a workpiece in a machine tool; and a corner specifying unit that specifies the corner that causes burrs on the workpiece based on the analyzed processing program.

Numerical control device

To make it possible to evaluate quantitatively whether there is a problem on a machining surface. A simulator includes a memory unit that stores machining position data to be used when a machine tool machines a machining-target object, a machining surface simulation unit that uses the machining position data that is stored to perform a simulation of a machining surface, a surface texture calculation unit that calculates a surface texture of the machining surface that is simulated through the simulation of the machining surface, and a machining surface evaluation unit that evaluates the surface texture on the basis of an evaluation condition.

Simulator, numerical control device, and simulation method

Machining sample model for machine tools

A numerical control device according to an aspect of the present disclosure controls a machine tool that machines a workpiece by way of a tool in accordance with a machining program, and includes: an offset setting unit which decides an offset direction and an offset amount with an orientation of the tool as a reference, for every tool; a test-running path calculation unit which calculates a test-running movement path of the tool obtained by offsetting by the offset amount in the offset direction from a machining movement path of the tool designated by the machining program; and an operating mode selection unit which selects either one of a machining operation mode of causing the tool to move following the machining movement path, and a test-run mode of causing the tool to move following the test-running movement path.

To provide easy determination of a causative factor of a machining problem in a machining target or easy checking of the effectiveness of an adjustment of, e.g., a machining program, a control command such as a position command, a servo control, or machine operation. This invention includes: storage units storing pieces of machining position data obtained from machining performed based on at least two of a machining program, a control command for performing servo control on a servo motor for driving a machine tool, and pieces of feedback information related to the servo control and machine operation, the machining being performed on a machining target by the machine tool; a machined surface simulation unit performing machined surface simulations based on the stored machining position data; and a display unit displaying images of machined surfaces resulting from the machined surface simulations in a juxtaposed manner.

Simulation device, numerical control device, and simulation method

A detection device includes an idling feed threshold acquiring unit configured to acquire, as an idling feed threshold, a threshold of an acceptable load in an idling feed operation; an expected load acquiring unit configured to acquire, as an expected load, an expected increase in load due to execution of an actual machining operation; a calculating unit configured to calculate, based on the idling feed threshold and the expected load, an actual machining threshold which is a threshold of an acceptable load in the actual machining operation; an actual machining load acquiring unit configured to acquire, as an actual machining load, an actual load during an actual machining operation; and a detecting unit configured to detect, based on the operating mode, an excess of the actual machining load relative to the idling feed threshold or the actual machining threshold.

Detection device and storage medium storing a program

An evaluation work piece includes at least one of a part (B) or (G), and at least one of a part (A), (C), (D), (E), or (F). (A) is a vertical level difference part. (B) is a direction reversing part at which a direction of movement of a tool in a height direction is reversed when the tool is used for machining of a three-dimensional object including a curved surface. (C) is a corner part at which a direction of movement of the tool changes. (D) is a flat surface part. (E) is a boundary part between a flat surface and a curved surface with a changing curvature. (F) is a curved surface part having a curved surface with a changing curvature. (G) is a curved surface part at which command points are aligned regularly between adjacent tool paths on a curved surface. At least one of the part (B) or (G) is included in a cut spherical body part. A reference surface for a three-dimensional measuring machine is arranged around the cut spherical body part. At least one of the part (A), (C), (D), (E) or (F) is arranged outside the reference surface.

Evaluation work piece and computer-readable storage medium

To provide a numerical control device capable of directly determining whether or not a cutting fluid is applied to a cutting point. A numerical control device includes a determination unit configured to make, on a basis of image data acquired when a vision sensor photographs a cutting fluid jetted from an injection nozzle toward a cutting point, determination of whether or not the cutting fluid is applied to the cutting point, and an instruction unit configured to issue an instruction to a nozzle control device configured to control a position and an attitude of the injection nozzle on a basis of a result of the determination of the determination unit.

A controller for a machine tool includes a machine learning apparatus configured to learn an Nth-order time-derivative component of a speed of each axis of the machine tool. The machine learning apparatus includes: a state observation section configured to observe first state data representing the Nth-order time-derivative component of the speed of each axis as a state variable representing a current state of an environment; a determination data acquisition section configured to acquire determination data representing a properness determination result of at least any one of machining accuracy, surface quality, and machining time of the machined workpiece; and a learning section configured to learn the Nth-order time-derivative component of the speed of each axis in relation to at least any one of the machining accuracy, the surface quality, and the machining time of the machined workpiece using the state variable and the determination data.

Acceleration and deceleration controller

Machining sample of machine tools

Provided is a numerical controller capable of calculating an optimum feed rate in machining in which cutting is performed in a different direction from a direction of a spindle axis. The numerical controller includes a tool data storage unit for storing tool data related to a tool attached to the spindle axis, a command analyzer for reading and analyzing a command block from the machining program, and generating movement command data for relatively moving the spindle axis with respect to the workpiece and spindle axis rotation command data for rotating the spindle axis, and a cutting speed controller for calculating a recommended cutting feed rate of the spindle axis based on the tool data of the tool, and clamping a cutting feed rate of the spindle axis included in the movement command data at the recommended cutting feed rate when the cutting feed rate of the spindle axis is larger than the recommended cutting feed rate.

Numerical controller

A numerical controller carries out acceleration/deceleration control over an interpolation pulse produced based on command blocks. This numerical controller exercises acceleration/deceleration control processing over the interpolation pulse based on an acceleration/deceleration setting which corresponds to the command blocks, and outputs a first speed pulse. The numerical controller exercises acceleration/deceleration control processing over the first speed pulse such that command blocks overlap each other, based on an overlapping shared acceleration/deceleration setting which does not depended on the command blocks, and outputs a second speed pulse.

Numerical controller including overlap function between arbitrary blocks by common acceleration/deceleration control unit

Machining sample model of machine tools

A numerical control device for a machine tool includes: a timing calculation unit configured to calculate a start timing of a post-reverse movement command by which a position, where the sum of velocities generated in response to a pre-reverse movement command and the post-reverse movement command becomes zero, is equal to a position distanced by an in-position width from the end point of the pre-reverse movement command; and a movement command start unit configured to start the post-reverse movement command in accordance with the start timing calculated by the timing calculation unit.

Growing community of inventors

Yamanashi, Japan

Nobuaki Aizawa