Fanuc Corporation

Fujitsu Fanuc Limited

Mitsuto Miyata

Hideaki Kawamura

Ryoichiro Nozawa

Teruyuki Matsumura

Tsuyoshi Nagamine

Kentaro Fujibayashi

Takashi Yamauchi

Shinichi Isobe

Noritake Nagashima

Hidehiro Miyajima

Takahiko Mineshige

Tomotaka Moriyama

Masashi Kawasumi

Yukihito Nagaoka

Automatic programming method

Part profile input method

Machining data display system

Round screw thread machining method

NC statement preparing system

NC data creation method

Numerical control system

Acceleration/deceleration system for a numerical controller

A numerical control method for a numerical control device which executes processing based on a machining program composed of multiple items of numerical control command data such as numerical command data and G-code data. Each item of the G-code data is expressed in the form of an alphabetic character G, a numerical value following G, and a code following the numerical value. The method includes inserting the items of G-code data in the machining program at suitable locations, subsequently discriminating the G-code data, and causing the numerical control device to execute processing specified by the discriminated G-code data.

Numerical control method

A system in which the radius of a tool is compensated for in the three-dimensional machining of a workpiece, wherein a tool is offset from a commanded tool path by a distance commensurate with the tool radius. Machining is performed by commanding the contour of the workpiece as a tool path in a prescribed plane sectioning the workpiece, providing the value of the tool radius and the angle of inclination of a machined surface of the workpiece, computing a first tool offset quantity in the prescribed plane and a second tool offset quantity in a direction at right angles to the prescribed plane, based on the radius of the tool and the angle of inclination, compensating for the radius of the tool in the prescribed plane based on the first tool offset quantity, correcting the position of the tool in a direction at right angles to the prescribed plane based on the second tool offset quantity, and machining the workpiece in three dimensions based on the compensated tool radius in the prescribed plane and the corrected tool position in the direction at right angles to the prescribed plane.

Tool radius compensation system

Numerical control machine tool

Numerical controller equipped with optional block skip function

Position error correction equipment

A numerical control system for executing numerical control processing on the basis of a command program, and for actuating a machine in accordance with the results of the processing steps to machine a workpiece in the manner specified by the instructions in the command program. There are prepared a plurality of system variables, the values of which represent a variety of operational conditions of the machine or of a numerical control device. A user macro, having at least an identification and an instruction that employs the system variables, is stored beforehand in a memory. The command program is programmed to include a user macro call instruction. A prescribed user macro is read out from the memory by means of the user macro call instruction, thereby to allow processing in accordance with the user macro. For example, it is possible to execute processing upon reading out input/output interface signals, clock time and a variety of machine positions.

Growing community of inventors

Hachioji, Japan

Mitsuto Miyata