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公开(公告)号：US5065333A
公开(公告)日：1991-11-12
申请号：US408501
申请日：1989-08-21
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).
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公开(公告)号：US4999784A
公开(公告)日：1991-03-12
申请号：US315687
申请日：1989-02-16
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.
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公开(公告)号：US4970449A
公开(公告)日：1990-11-13
申请号：US381642
申请日：1989-07-11
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。
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公开(公告)号：US4959597A
公开(公告)日：1990-09-25
申请号：US314057
申请日：1989-02-08
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.
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公开(公告)号：US4894594A
公开(公告)日：1990-01-16
申请号：US255192
申请日：1988-09-21
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。
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公开(公告)号：US4652804A
公开(公告)日：1987-03-24
申请号：US804650
申请日：1985-11-18
IPC分类号： G05B19/416 , G05B11/18
CPC分类号： G05B19/416 , G05B2219/36383 , G05B2219/43048
摘要： A numerical controller of the type in which acceleration or deceleration processing is performed by an acceleration/deceleration circuit (7) prior to an interpolation by an automatic mode distributor (1); a smooth acceleration or deceleration is carried out when a distribution pulse from a manual mode distributor (2) is superimposed by an adder 3 on a distribution pulse from the automatic mode distributor (1). To achieve this, the command pulse to be superimposed is also subjected to independent acceleration or deceleration processing by an acceleration/deceleration circuit (10).
摘要翻译： PCT No.PCT / JP85 / 00132 Sec。 371日期：1985年11月18日 102（e）1985年11月18日日期PCT 1985年3月15日PCT PCT。 出版物WO85 / 04270 1985年9月26日，在自动模式分配器（1）进行插补之前，由加减速电路（7）进行加速或减速处理的数值控制器。 当来自手动模式分配器（2）的分配脉冲由加法器3叠加在来自自动模式分配器（1）的分配脉冲上时，执行平滑的加速或减速。 为了实现这一点，叠加的命令脉冲也通过加速/减速电路（10）进行独立的加速或减速处理。
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公开(公告)号：US4516211A
公开(公告)日：1985-05-07
申请号：US394914
申请日：1982-06-18
IPC分类号： G05B19/4103 , G05B19/41 , G06F15/46 , G05B19/18
CPC分类号： G05B19/41 , G05B2219/35525 , G05B2219/36573 , G05B2219/49243 , G05B2219/50289 , G05B2219/50295 , G05B2219/50336 , G05B2219/50356
摘要： The coordinate values (X, Y, Z) for the position of the front end of a tool and the vector (I, J, K) of the axial direction of the tool are read in from a command tape by a tape reader. Using these values and a tool length l set by a dial or the like, a movement data calculation circuit calculates the orthogonal coordinate values (x, y, z) of the position Q of the center of rotation of the tool and spherical coordinate values (b, c) indicative of the position of the rotational angle of the tool. After these coordinate values are converted into pulses for moving the tool in the respective axial directions by a pulse distribution circuit, servomotors are driven by the pulse signals and through servo circuits so as to move the tool or a table to a desired machining position.
摘要翻译： PCT No.PCT / JP81 / 00296 Sec。 371日期1982年6月18日 102（e）日期1982年6月18日PCT提交1981年10月23日PCT公布。 第WO82 / 01599号公报 日期：1982年5月13日。刀具前端位置的坐标值（X，Y，Z）和刀具轴向的向量（I，J，K）从指令带读入 由磁带阅读器。 使用这些值和由刻度盘等设定的刀具长度l，运动数据计算电路计算刀具的旋转中心的位置Q的正交坐标值（x，y，z）和球面坐标值（ b，c）表示工具的旋转角度的位置。 在通过脉冲分配电路将这些坐标值转换成用于在各轴向上移动刀具的脉冲之后，通过脉冲信号和伺服电路来驱动伺服电动机，以将刀具或工作台移动到期望的加工位置。
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公开(公告)号：US5200680A
公开(公告)日：1993-04-06
申请号：US651267
申请日：1991-04-15
IPC分类号： G05B19/416
CPC分类号： G05B19/416 , G05B2219/43009 , G05B2219/43058 , G05B2219/43062 , G05B2219/43129 , G05B2219/43199 , G05B2219/43203
摘要： A feed speed control method for a numerical control device in which a feed speed of a tool traveling along an instructed machining path is controlled in accordance with a machining program. The speed of each axis is derived (S2), and the acceleration of each axis is derived from a speed variation between adjacent blocks (S3). When the acceleration (.DELTA.Vx) is larger than a permissible acceleration (.DELTA.Vxmax) (S4), first ratios (K1) of the permissible accelerations to the accelerations are derived for individual axes (S5), and the smallest of the first ratios is selected. The command speed is multiplied by the square root of the smallest first ratio to derive an actual feed speed (S9). In this way, shock to a machine is reduced and an excessive load on a servomotor is reduced even when blocks continue for successive infinitesimal distribution distances, as in the case wherein a curve is approximated by the use of straight lines.
摘要翻译： PCT No.PCT / JP90 / 01028 Sec。 371日期：1991年4月15日 102（e）日期1991年4月15日PCT 1990年8月10日PCT PCT。 公开号WO91 / 03778 1991年3月21日。一种数控装置的进给速度控制方法，其中根据加工程序控制沿着指示的加工路径行进的工具的进给速度。 导出每个轴的速度（S2），并且每个轴的加速度来自相邻块之间的速度变化（S3）。 当加速度（DELTA Vx）大于允许加速度（DELTA Vxmax）（S4））时，针对各个轴（S5）导出允许的加速度与加速度的第一比率（K1），并且最小的第一比率 选择。 命令速度乘以最小第一比率的平方根，得出实际进给速度（S9）。 以这种方式，即使在连续的无穷小分布距离的块继续下降的同时，对于机器的冲击减小，并且伺服电动机的过大负载被降低，如在使用直线近似曲线的情况下。
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公开(公告)号：US5181178A
公开(公告)日：1993-01-19
申请号：US582204
申请日：1990-10-01
IPC分类号： G05B19/18 , G05B19/408
CPC分类号： G05B19/182 , G05B19/408 , G05B2219/50235
摘要： A spindle control command method is provided for controlling a plurality of spindless by a single numerical control device (CNC), and switching between individual control and synchronous control of a plurality of spindles (1, 3) is effected by a program command (9). Namely, whether the spindles (1, 3) should be controlled individually or synchronously is commanded by an NC program (9), and the CNC carries out switching to the individual spindle control or to the synchronous spindle control in accordance with the command given.
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公开(公告)号：US5177421A
公开(公告)日：1993-01-05
申请号：US720765
申请日：1991-07-02
申请人： Takao Sasaki , Kentaro Fujibayashi , Makoto Haga
发明人： Takao Sasaki , Kentaro Fujibayashi , Makoto Haga
IPC分类号： G05B19/18 , G05B19/25 , G05B19/404
CPC分类号： G05B19/251 , G05B2219/34156 , G05B2219/49164
摘要： A method of correcting a change of position of a machine tool having at least two control axes avoids abrupt machining errors. A position correction means (12) outputs correction pulses (Xcp, Ycp) so that the ratio of actual amounts of movement of the respective axes, obtained from the output values of position detectors (8X, 8Y) detecting a position of the machine tool, becomes equal to the ratio (R1) of distribution pulses (Xp1, Yp1) for the respective axes. The correction pulses (Xcp, Ycp) are added to the distribution pulses (Xp1, Yp1). Accordingly, an abrupt machining error caused at the beginning or just before the end of machining, or when machining a corner of a workpiece, is alleviated.
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