Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Daisuke Fujino

Tomonori Sato

Yukihiro Iuchi

Kenji Iriguchi

Kotaro Nagaoka

Shunro Ono

Nobuyuki Takahashi

Katsunori Tanaka

Naoki Nakamura

Susumu Matsubara

Kenji Okuma

Toshiaki Kimata

Yuka Mitani

Shinya Nishino

Ryuta Sato

Tomonori Satou

A numerical control apparatus includes: a program input unit that reads a tool distal end position and a tool posture and generates designated position sequences of the linear axis and designated position sequences of the rotation axis; a distal-end-position-curve generating unit that generates a tool distal end position curve concerning the tool distal end position; a tool-posture-curve generating unit that generates a tool posture curve concerning the tool posture associated with movements of the tool distal end position; an interpolation calculating unit that calculates an interpolation point of the tool distal end position, calculates an interpolation point of the tool posture, and calculates an interpolation point of a machine position of the linear axis; and an interpolation output unit that moves the linear axis to the calculated interpolation point of the machine position and moves the rotation axis to the calculated interpolation point of the tool posture.

Numerical control apparatus for multi-axial machine

An automatic programming apparatus includes a machining-shape generating unit configured to generate second machining shapes for each of machining processes from each of a plurality of first machining shapes input from outside; a machining-order editing unit configured to receive an input of execution order of the machining processes; a machining-shape adjusting unit configured to extend, among a plurality of the second machining shapes having a same tool direction, which is a direction that a tool pierces, one of the second machining shapes in a direction opposite to the tool direction, delete, from the other machining shape that overlaps the one second machining shape because of the extension of the one second machining shape, a portion of the overlap, and generate a third machining shape; and a control-command generating unit configured to generate, based on the third machining shape and the input execution order, a control command.

Automatic programming apparatus and control command generating method

A numerical control apparatus includes a program analyzing unit configured to pre-fetch a tool replacement command and a post-replacement positioning command from a machining program and output these commands, a tool-replacement-command output unit configured to cause, based on the tool replacement command, a machine tool to execute a tool replacing operation, and a movement-command determining unit and an interpolating unit configured to start, when the post-replacement positioning command is an axis component command for positioning an axis related to the tool replacing operation, control of the axis based on the axis component command, after waiting for completion of the tool replacing operation, and start, when the post-replacement positioning command is an axis component command for positioning an axis unrelated to the tool replacing operation, control of the axis based on the axis component command, without waiting for the same.

Numerical control apparatus

A numerical control device for a working machine capable of controlling a tool posture relative to a workpiece using rotational driving of a rotary drive axis about a machine control point includes: an interpolation unit that performs an interpolation process on moving data generated from a machining program and outputs a position of the machine control point for each interpolation point; a coordinate transformation unit that transforms a position of the machine control point to a tool tip-point position; a stroke-limit determination unit that determines whether the position of the machine control point and the tool tip-point position fall within a range of a movable region, and selects and outputs a stroke limit signal indicating a stroke limit and a tool-posture changing command for instructing change of the tool posture; and a tool-posture changing unit that changes the tool posture in response to the tool-posture changing command.

Numerical control device

A motor control device includes: an acceleration/deceleration processing unit that generates a servo command according to an acceleration/deceleration parameter; a servo control unit that controls a motor drive torque to drive a control target machine motor according to the servo command; a power supply unit that supplies electric power of a predetermined power supply capacity from a commercial power supply to the servo control unit; an electrical storage unit that supplies electric power supplementing the electric power; and an acceleration/deceleration parameter setting unit that computes maximum power that can be used for acceleration/deceleration based on a power storage amount in the electrical storage unit, the power supply capacity, and all energy required for acceleration, computes an acceleration/deceleration parameter that causes electric power at a time of acceleration/deceleration to be equal to or lower than the maximum power, and sets the acceleration/deceleration parameter.

Motor control device

A CPUreads a next block (S), and then determines whether the read block is a TCP (tool center point) control finish command 'G49' or not (S). If it is determined to be the TCP control finish command 'G49', the TCP control is finished. If it is determined not to be the TCP control finish command &#x201c;G49&#x201d;, whether the read block is a coordinate-system transformation command &#x201c;P1&#x201d; or not is determined (S). Next, if it is determined not to be the coordinate-system transformation command &#x201c;P1&#x201d;, the TCP control is performed, without transforming the coordinate system, in accordance with a command of the block (S). Next, the process returns to S, and then the process after Sis executed. If it is determined to be the coordinate-system transformation command &#x201c;P1&#x201d;, a start point (xs, ys, zs, bs, cs) and an end point (xe, ye, ze, be, ce) in a non-machine coordinate system, of the block are transformed into a start point (Xs, Ys, Zs, Bs, Cs) and an end point (Xe, Ye, Ze, Be, Ce) in a machine coordinate system, respectively (S).

Numerical control device, method of controlling the same, and system program therefor

A programming device programs a machining control program to be used on a numerical control device for machining an object. A setting unit sets an axial direction of the tool with respect to the data on the machining-target area and sets a deepest position of a tip of the tool with respect to the data on the machining-target area. An extracting unit extracts a surface-machining-target area of the object from the data on the machining-target area based on the set axial direction of the tool, the set deepest position of the tip, and the data on the machining-target area.

Programming device and programming method

A machining program for a NC machine tool including a NURBS interpolation command is input as a source file, the input machining program is sequentially analyzed in such a way that the portions other than the NURBS interpolation command portion are left as they are, and the NURBS interpolation command portion is converted into a minuscule line segment interpolation command, a spline interpolation command or a NURBS interpolation command of a differently presented specification by the conversion unit. In accordance with the conversion mode selectively set by a conversion mode setting unit, the portions other than the NURBS interpolation command portion are left as they are, while the NURBS interpolation command portion is converted into a minuscule line segment interpolation command, a spline interpolation command or a NURBS interpolation command of a differently presented specification thereby to generate destination file.

File conversion apparatus for machining program of numerical control system and computer readable recording medium for storing program for computer to execute file conversion process

There is provided by the present invention a numerical control apparatus comprising a means for deciding a spline curve by repeating approximation of a tangential vector for an instructed point by required times according to the necessity, a means for controlling a speed by estimated a radius curvature of the decided spline curve, and a means for interpolating a speed on the decided spline curve.

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Tokyo, Japan

Daisuke Fujino