Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Other

Yamazaki Mazak Corporation

Canon Kabushiki Kaisha

Mori Seiki Co., Ltd.

Kabushiki Kaisha Sega

Yasda Precision Tools K.k.

Tomonori Sato

Naoki Nakamura

Kenji Iriguchi

Daisuke Fujino

Yukihiro Iuchi

Kenji Nishiwaki

Susumu Matsubara

Takashi Iwasaki

Kotaro Nagaoka

Akira Miyata

Yoshiaki Kakino

Takeshi Tsuda

Hisashi Otsubo

Teiji Takahashi

Yoshinori Yamaoka

Yuka Mitani

Shunro Ono

Makoto Sato

Nobuyuki Takahashi

Hideo Nakagawa

Eiji Hayashi

Hidetoshi Ikeda

Makoto Fujishima

Kenji Okuma

Satoru Nakai

Hidenori Saraie

Yuji Mizukami

Masaki Ryu

Akira Iseki

Shinya Nishino

Toshiyuki Muraki

Daichi Katagiri

Iwao Yamaji

Toru Takeyama

Atsushi Matsubara

Susumu Hamamoto

Yasuo Kawagoshi

Yoshifumi Fujita

Shuichi Arata

Ryuta Sato

Ushio Fukuichi

Terumasa Yasui

Hirofumi Kai

Hiroaki Onishi

An image forming apparatus includes a scanning means provided with a light source, a polygon mirror and a driving means for driving rotation of the polygon mirror; a photosensitive member, a developing means, and a detecting means for detecting a laser light from the light source. A controller controls to execute a light emission operation so that an area including an image forming area of the photosensitive member is irradiated with the laser light. The controller controls to execute a switching operation in which a rotational speed of the polygon mirror is switched from a first speed to a second speed different from the first speed. The controller controls to execute the light emission operation in a state in which the photosensitive member and the developing means are in contact and are rotating, and to execute the switching operation based on a detecting result of the detecting means in the light emission operation.

Image forming apparatus with switched process speeds and resolutions

A NC-program editing apparatus includes a 3D-machining-shape generating unit that generates, for each unit of machining, a three-dimensional machining shape including position information in a three-dimensional virtual space on the basis of attribute information described for each unit of machining configuring an NC program, an attribute processing unit that extracts the attribute information from the NC program and associates three-dimensional position information corresponding to a machining shape corresponding to the extracted attribute information with the extracted attribute information, and a display-screen control unit that displays the NC program on a program display screen and displays a projection drawing of the machining shape on a shape display screen according to position information contained in the machining shape and, when receiving an input for editing the NC program via the program display screen, reflects content of the input on the NC program.

Numerical-control-program editing apparatus, numerical-control-program editing method, and program

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

In a numerical control devicewhich controls positions of respective axes of a machine tool according to a machining program, a commandinstructed to the machining programis analyzed by an analyzing unit, thereby obtaining movement dataand a movement type, an acceleration-deceleration data selection unitselects acceleration-deceleration dataaccording to the movement type, and an interpolation and acceleration-deceleration unitgenerates a position commandby performing an interpolation on a movement route, which is instructed to the movement data, according to a command speed and performing acceleration-deceleration according to the acceleration-deceleration data

Numerical control device

A numerical control device () of a machine tool capable of controlling its spindle rotating speed includes: a program analyzing unit () that reads ahead a machining program () by one block or more and analyzes a command for the machine tool; and a command determining unit () that determines, based on a result analyzed by the program analyzing unit (), whether a command posterior to a spindle control command causes any machining problem when the command is executed during a spindle rotating speed change, outputs a first command, in which some problem occurs in the machining, after the spindle rotating speed reaches the commanded rotating speed, and output a second command, which is other than the first command, before the spindle rotating speed reaches the commanded rotating speed.

A numerical control device includes: a control unit controlling movement of shafts of a machine tool by a position command according to a machining program and acquiring position information on the shafts; a monitoring point determination unit determining a monitoring point in the machining program and a monitoring shaft according to the type of an instruction or an instruction related to travel described in the machining program; and a monitoring unit monitoring whether error or deviation based on the position information at the monitoring point of the monitoring shaft exceeds a predetermined threshold, wherein the control unit controls movement of the shafts based on the monitoring result of the monitoring unit, and the numerical control device further comprises an analysis unit presenting whether the cause of the error or deviation is a mechanical factor or a control factor based on the monitoring result and outputting the analysis result.

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

In order to enable tapping to be performed precisely and with an appropriate machining time irrespective of the diameter of a tapping tool, a configuration of the present invention includes: a program analysis unit () that analyzes a loaded machining program and extracts thread-related information in tapping; a gradient determination unit () that determines acceleration regarding movement velocity of the main spindle or the feed shaft on the basis of the thread-related information obtained by the program analysis unit (); and an interpolation and acceleration/deceleration processing unit () that generates a movement command for the main spindle and the feed shaft using the acceleration determined by the gradient determination unit (). In addition, the gradient determination unit () varies the acceleration during acceleration/deceleration of the main spindle or the feed shaft in accordance with the diameter of a tapping tool.

Numerical control device which performs tapping operation by using a main spindle and a feed shaft

To obtain an automatic programming apparatus, capable of generating a tool path for the chamfering process with a simple operation and capable of shortening the operation period and improving machining efficiency, the automatic programming apparatus includes a chamfering tool path generating unit and machining condition data. The chamfering tool path generating unit includes: a chamfered plane defining unit that generates shape data defining a chamfered plane obtained after the chamfering process is performed with respect to a shape of the chamfering target part; a reference point sequence generating unit that generates a reference point sequence used as a reference for generating the tool path data used for performing the chamfering process; and a tool reference position generating unit that, generates a reference position of a machining tool used when the machining tool passes while performing the chamfering process.

Automatic programming apparatus and automatic programming method

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.

A numerical control device that controls, in a machine tool, driving of a motor based on a machining program is provided. The numerical control device includes a position-command generating unit configured to generate a position command to the motor and a mark-command generating unit configured to generate a mark command for machining of a mark indicating that an abnormality occurs in the machining. The mark-command generating unit sequentially stores information concerning a moving route of the tool by the machining and generates, when an alarm is raised because the abnormality is detected, as the mark command, a moving command for moving the tool in a direction opposite to a direction during the machining while correcting a position of the tool in a tool axis direction with respect to a position during the machining, and the position-command generating unit generates the position command based on the mark command.

A numerical control apparatus includes a machining-program reading unit that reads a command issued from a machining program, a command-path storing unit that stores a pre-compression command path in a pre-compression command path buffer, a compression processing unit that creates new one post-compression command path connecting start points and end points of a continuous plurality of pre-compression command paths, a movement-data creating unit that creates tool movement data necessary for correcting the post-compression command path to a tool movement path and interpolating the tool movement path, and an interpolation processing unit that interpolates the tool movement path and calculates a tool position using both the pre-compression command path stored by the command-path creating unit and the tool movement data of the tool movement path after compression created by the movement-data creating unit.

Numerical control apparatus and production system

A numerical controller obtains a position of each driving shaft of a machine performing determination of a feeding speed, interpolation and coordinate conversion according to a relative instruction path and an instruction speed of a tool tip point relative to a work instructed to a processing program. When determining the feeding speed, a reference point is provided on a tool or a table, a translation speed of the reference point viewed from a mechanical coordinate system is set to an observation target speed, a reference feeding speed is obtained so that the observation target speed is a predetermined reference speed, and the smaller of the reference feeding speed and the instruction feeding speed is set to the feeding speed.

Numerical controller

Automatic programming apparatus includes: a material shape data input unit that receives input of data of material shape; a processing program storage unit that stores therein data of material shape and processed unit data; a processed unit data input part that receives an input of other-processed-unit-reference-type processed unit data referencing processed region shape data contained in the processed unit data; a processed region shape generating unit that generates processed region shape data in the processed unit data for partial processing, based on data of material shape and processed region shape data referenced by other-processed-unit-reference-type processed unit data; and a control command generating unit that generates control command data, based on processed unit data for partial processing containing processed region shape data.

A machine motion trajectory measuring device for measuring the motion trajectory of a machine used in an apparatus which controls the position of the machine by feeding back a detected position obtained by converting the rotation angles of motors for a plurality of movable axes and then driving the motors such that the detected position follows a commanded position is provided. The machine motion trajectory measuring device includes accelerometers for measuring the acceleration of the machine; and a motion trajectory measuring unit that measures the motion trajectory of the machine by obtaining the position of the machine by integrating the acceleration twice and correcting the position of the machine such that the profile of the position of the machine coincides with the profile of the detected position or the profile of an estimated position estimated using a model for simulating the response of the position of the machine to the commanded position.

Machine motion trajectory measuring device, numerically controlled machine tool, and machine motion trajectory measuring method

Growing community of inventors

Tokyo, Japan

Tomonori Sato