公开(公告)号：US5146410A

公开(公告)日：1992-09-08

申请号：US747503

申请日：1991-08-19

申请人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Yosata Hidaka

发明人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Yosata Hidaka

IPC分类号： G05B19/18 ,  G05B19/41 ,  G05B19/4103 ,  G05B19/414 ,  G05B19/4155

CPC分类号： G05B19/4141 ,  G05B19/41 ,  G05B19/4103 ,  G05B19/4147 ,  G05B2219/33129 ,  G05B2219/34157 ,  G05B2219/34291

摘要： A computerized numerical control system controls the axes of a computerized numerical control apparatus (20) from a programmable machine controller (10) coupled to the computerized numerical control apparatus (20). Command values for the axes, information with respect to the grouping of the axes, and execution times for the axes in respective groups are sent from the programmable machine controller (10) to the computerized numerical control apparatus (20). When all commands for the axes in the respective groups are received by the computerized numerical control apparatus (20), pulses start to be distributed to the axes, and the pulses are distributed within the execution times. Linear interpolation can be performed on any desired combination of axes of the computerized numerical control apparatus (20) for preventing physical interference which could otherwise occur between axes when an automatic tool changing (ATC) mode is controlled by the programmable machine controller (10).

公开(公告)号：US5065333A

公开(公告)日：1991-11-12

申请号：US408501

申请日：1989-08-21

申请人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Masafumi Sano

发明人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Masafumi Sano

IPC分类号： G05B19/4103 ,  G05B19/41

CPC分类号： G05B19/41 ,  G05B2219/34144

摘要： An involute interpolation method for a computerized numerical control apparatus having a rotational axis and a linear axis is effected by giving commands for a direction in which an involute curve (ICl) rotates, the position of the center of a base circle (BC), the radius (R) of the base circle, and a Z-axis, and interpolating the involute curve (ICl) and the Z-axis according to the commands. Interpolated distances are converted to those along the rotational axis, the linear axis, and the Z-axis for the control of a machine tool (9).

公开(公告)号：US4999784A

公开(公告)日：1991-03-12

申请号：US315687

申请日：1989-02-16

申请人： Hideaki Kawamura ,  Kentaro Fujibayashi

发明人： Hideaki Kawamura ,  Kentaro Fujibayashi

IPC分类号： B23Q5/36 ,  B23Q15/00 ,  G05B19/18 ,  G05B19/19

CPC分类号： G05B19/195 ,  G05B2219/41457 ,  G05B2219/42232

摘要： An axis changeover apparatus according to the invention changes axes of movement of a machine tool having axes with the same direction of movement, such as a cross rail axis and quill axis. A check is performed to determine the commanded strokes along axes (Z and W axes) from machining commands supplied by an NC command tape (1). If a move command has a commanded stroke which exceeds a set limit stroke value, the portion of the commanded stroke which exceeds the value is converted into a commanded stroke along the other axis having the same direction of movement, thereby elongating the apparent stroke.

公开(公告)号：US4994978A

公开(公告)日：1991-02-19

申请号：US296056

申请日：1989-01-06

申请人： Hideaki Kawamura ,  Takao Sasaki ,  Kentaro Fujibayashi

发明人： Hideaki Kawamura ,  Takao Sasaki ,  Kentaro Fujibayashi

IPC分类号： B23Q15/007 ,  B23Q15/00 ,  B23Q15/013 ,  G05B19/25 ,  G05B19/416

CPC分类号： G05B19/416 ,  G05B19/253 ,  G05B2219/34188 ,  G05B2219/43009

摘要： An acceleration/deceleration control apparatus according to the present invention is utilized in a numerical contorl unit in which a machine tool is provided with a machining program from a command tape (3) and the machining program is decoded to simultaneously control movement along a plurality of axes. In order to eliminate machining trajactory sag which occurs at the breaks between program blocks, the actual velocity of a controlled object during deceleration is compared with the commanded velocity in the next command data block by a comparator circuit (7). Until the actual velocity is less than the command velocity, a pulse distribution circuit (6) is stopped so as not to perform pulse distribution based on the next command data block. This improves the accuracy of position control by servomotors (1), (2) the acceleration/deceleration of which is controlled by interpolation data.

公开(公告)号：US4970449A

公开(公告)日：1990-11-13

申请号：US381642

申请日：1989-07-11

申请人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Morimasa Sato

发明人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Morimasa Sato

IPC分类号： G05D3/12 ,  G05B19/05 ,  G05B19/18 ,  G05B19/23 ,  G05B19/414

CPC分类号： G05B19/237 ,  G05B19/056 ,  G05B19/4147 ,  G05B2219/34426 ,  G05B2219/41409 ,  G05B2219/42104 ,  Y10T29/5153

摘要： A numerical control apparatus according to the invention has a mode designating interface for deciding a control mode and an interface which receives position and velocity commands, these interfaces being interposed between the apparatus and a servo-processor. A mode for controlling the servomotor is automatically decided internally of the numerical control apparatus. Changeover is possible in which the servomotor is used as a motor for positional control or in order to control rotational velocity in the manner of a spindle motor to achieve continuous rotation.

摘要翻译： PCT No.PCT / JP88 / 01178 Sec。 371日期：1989年7月11日 102（e）日期1989年7月11日PCT提交1988年11月21日PCT公布。 出版物WO89 / 05005 日本1991年6月1日。根据本发明的数控设备具有用于确定控制模式的模式指定界面和接收位置和速度命令的接口，这些接口插入在设备和伺服处理器之间。 用于控制伺服电机的模式在数值控制装置的内部自动确定。 可以进行转换，其中伺服电动机用作位置控制的电动机，或者以主轴电动机的方式控制转速以实现连续旋转。

公开(公告)号：US4959597A

公开(公告)日：1990-09-25

申请号：US314057

申请日：1989-02-08

申请人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Toshiaki Otsuki

发明人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Toshiaki Otsuki

IPC分类号： G05B19/18 ,  B23Q15/00 ,  F16H61/04 ,  G05B19/404 ,  G05B19/4093 ,  G05B19/4103

CPC分类号： G05B19/4103 ,  F16H2061/0444 ,  G05B2219/34144 ,  G05B2219/50336 ,  Y02P90/265

摘要： A numerical control apparatus according to the invention for interpolatory control of a tool along the shape of a workpiece to be machined. In order to perform offsetting of a cutting tool by an amount equivalent to the tool diameter when involute interpolation is carried out, an involute curve is approximated by a circular which is set in dependence upon the intersection angle of a machining trajectory at a command point commanding the start of machining.

公开(公告)号：US4894594A

公开(公告)日：1990-01-16

申请号：US255192

申请日：1988-09-21

申请人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Nozomu Arimoto

发明人： Hideaki Kawamura ,  Kentaro Fujibayashi ,  Nozomu Arimoto

IPC分类号： B23Q15/00 ,  G05B19/416

CPC分类号： G05B19/416 ,  G05B2219/43009

摘要： The designated speeds of a plurality of blocks are read beforehand, deceleration start positions are calculated to maintain the servo system at a speed below the designated speeds of the blocks read beforehand at the start positions of the previously read blocks, and the servo system is decelerated from the calculated deceleration start positions, whereby the servo system speed is kept below the designated speeds of all of the blocks and the deceleration of the speed of the servo system is controlled with a high degree of accuracy.

摘要翻译： PCT No.PCT / JP88 / 00049 Sec。 371日期：1988年9月21日 102（e）1988年9月21日PCT PCT。 出版物WO88 / 05566 日期：1988年7月28日。预先读取多个块的指定速度，计算减速开始位置，以将伺服系统保持在预先在先前读取的块的开始位置预先读取的块的指定速度以下的速度 并且伺服系统从计算出的减速开始位置减速，由此使伺服系统速度保持在所有块的指定速度以下，并且以高精度控制伺服系统的速度的减速。

公开(公告)号：US4684861A

公开(公告)日：1987-08-04

申请号：US822429

申请日：1985-12-20

申请人： Hideaki Kawamura ,  Toshiaki Otsuki

发明人： Hideaki Kawamura ,  Toshiaki Otsuki

IPC分类号： G05B19/18 ,  G05B19/414 ,  G05B19/416 ,  G05B19/00

CPC分类号： G05B19/4147 ,  G05B19/416 ,  G05B2219/43158

摘要： An interface unit is connected beween a numerical controller (NC) and an electric power control circuit (PC). The interface unit includes an actual speed memory (50) into which the numerical controller (NC) can write actual speed data and from which the electric power control circuit (PC) can read out the written data, and a corrected speed memory (51) into which the electric power control circuit (PC) can write corrected speed data and from which the numerical controller (NC) can read out the written data. This makes it possible for the electric power control circuit (PC) to detect the actual speed of the numerical controller (NC) by reading out the actual speed memory (50), and to control the actual speed of the numerical controller (NC) by writing the corrected speed data in the corrected speed memory (51).

摘要翻译： PCT No.PCT / JP85 / 00251 Sec。 371日期1985年12月20日第 102（e）1985年12月20日日期PCT提交1985年5月1日PCT公布。 公开号WO85 / 05199 日期：1985年11月21日。接口单元连接数字控制器（NC）和电力控制电路（PC）。 接口单元包括实际速度存储器（50），数字控制器（NC）可以写入实际速度数据，电力控制电路（PC）可从该实际速度数据读出写入的数据，校正后的速度存储器， 电力控制电路（PC）可以写入校正的速度数据，数字控制器（NC）可从该数据读出数据。 这使得电力控制电路（PC）可以通过读出实际速度存储器（50）来检测数字控制器（NC）的实际速度，并且通过以下方式控制数字控制器（NC）的实际速度： 在校正速度存储器（51）中写入校正的速度数据。

公开(公告)号：US4682216A

公开(公告)日：1987-07-21

申请号：US585234

申请日：1984-03-01

申请人： Takashi Sasaki ,  Nobuaki Sakurada ,  Hideaki Kawamura ,  Jiro Moriyama

发明人： Takashi Sasaki ,  Nobuaki Sakurada ,  Hideaki Kawamura ,  Jiro Moriyama

IPC分类号： B41M1/18 ,  H04N1/50 ,  H04N1/60 ,  G03F3/08 ,  G01D15/16 ,  H04N1/40 ,  H04N1/46

CPC分类号： H04N1/6022 ,  B41M1/18 ,  H04N1/50

摘要： Color image picture forming process and apparatus can provide a picture with smooth shadow portions without false contours. When a black component of a color picture data is smaller than a predetermined value, the black component is expressed by using the combination of cyan, magenta and yellow colorants. When the black component is larger than the predetermined value, it is expressed by alternately using the black colorant and the three colorant combination. In another embodiment, picture quality can be enhanced by using a black colorant having a higher density than the cyan, magenta and yellow colorants.

摘要翻译： 彩色图像图像形成处理和装置可以提供具有平滑阴影部分而没有假轮廓的图像。 当彩色图像数据的黑色分量小于预定值时，通过使用青色，品红色和黄色着色剂的组合表示黑色分量。 当黑色成分大于预定值时，通过交替使用黑色着色剂和三种着色剂组合来表示。 在另一个实施方案中，通过使用具有比青色，品红色和黄色着色剂更高密度的黑色着色剂，可以提高图像质量。

公开(公告)号：US4672432A

公开(公告)日：1987-06-09

申请号：US602732

申请日：1984-04-23

申请人： Nobuaki Sakurada ,  Hideaki Kawamura ,  Takashi Sasaki

发明人： Nobuaki Sakurada ,  Hideaki Kawamura ,  Takashi Sasaki

IPC分类号： H04N1/40 ,  H04N1/50 ,  H04N1/52 ,  H04N1/46 ,  G01D15/16 ,  G01D15/18 ,  G03F3/08

CPC分类号： H04N1/52 ,  H04N1/40087 ,  H04N1/502

摘要： A method for reproducing a halftone color image is disclosed, in which each picture element comprises a plurality of cells and one dot is formed for each cell. At least two colorent densities are used for at least some of the colors. When there is more than one combination of colorants which can represent a given density in a picture element, the combination having the largest number of dots is selected. In a preferred embodiment, more colorants of different densities are used for cyan and magenta then are used for black and yellow.

摘要翻译： 公开了一种再现半色调彩色图像的方法，其中每个像素包括多个单元，并且为每个单元形成一个点。 对于至少一些颜色使用至少两个相同密度。 当存在可以表示图像元素中的给定浓度的着色剂的多于一种的组合时，选择具有最大点数的组合。 在优选的实施方案中，用于青色和品红色的不同密度的更多着色剂用于黑色和黄色。