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公开(公告)号：US5309367A
公开(公告)日：1994-05-03
申请号：US778068
申请日：1991-12-02
IPC分类号： G05B19/18 , G05B19/23 , G05B19/404 , G06F15/46
CPC分类号： G05B19/231 , G05B2219/41036 , G05B2219/41055 , G05B2219/41063
摘要： A pitch error compensating system compensates for a pitch error of a ball screw of a numerically controlled machine tool. A pitch error calculating means (4) reads a present value from a present value register (3), reads pitch error corrective quantities (.epsilon.n, .epsilon.pn) in a corresponding period, and outputs pitch error corrective quantities as pitch error corrective pulses (CP) at equal intervals in the period. The pitch error corrective pulses (CP) are added to interpolated pulses (CP) by an adder (5). Since the pitch error corrective quantities are not outputted all at once, the machine tool moves smoothly, and the quality of the machined surface of the workpiece is improved.
摘要翻译： PCT No.PCT / JP91 / 00498 Sec。 371 1991年12月2日第 102（e）1991年12月2日PCT PCT 1991年4月10日提交PCT公布。 公开号WO91 / 16173 日期1991年10月31日。螺距误差补偿系统补偿数控机床的滚珠丝杠的螺距误差。 音调误差计算装置（4）从当前值寄存器（3）中读取当前值，在相应的周期内读出音调误差校正量（epsilon n，εpn），并将音调误差校正量作为音调误差校正脉冲（ CP）。 通过加法器（5）将音调误差校正脉冲（CP）加到内插脉冲（CP）上。 由于螺距误差校正量一次不全部输出，所以机床平稳地移动，提高了加工面的质量。
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公开(公告)号：US5305227A
公开(公告)日：1994-04-19
申请号：US776379
申请日：1991-11-26
IPC分类号： G05B19/18 , G01M13/02 , G05B19/23 , G05B19/404 , G06F11/30
CPC分类号： G01M13/021 , G05B19/231 , G05B2219/34072 , G05B2219/35354 , G05B2219/41036 , G05B2219/41055 , G05B2219/49197
摘要： A gear pitch error correcting system for a numerical control apparatus used for a machine tool including at least one pair of gears provided in a transmission line through which the rotating force of a servomotor is transmitted to a driven member. Gear pitch error correction values for the respective gears, which each correspond to a predetermined gear angle and collectively cover one gear rotation, are stored in a nonvolatile memory. A pitch error computing means (E) refers to a current position register (D), reads out pitch error correction data (14b) corresponding to the current position from the nonvolatile memory, and adds up the data to obtain a superimposed pitch error correction value. The superimposed pitch error correction value and an interpolation pulse from an interpolating means (B) are added together by an adder (C), to obtain a pitch error-corrected output pulse, which is then supplied to an axis control circuit (18). Accordingly, even with a relatively small number of gear pitch error correction values for the individual gears, a gear pitch error correction can be precisely executed in proportion to the superimposing of the gear pitch error correction values.
摘要翻译： 一种用于机床的数控装置的齿轮间距误差校正系统，包括至少一对齿轮，所述至少一对齿轮设置在传动线中，伺服马达的旋转力通过该传动线被传递到从动构件。 各自对应于预定的齿轮角并且共同覆盖一个齿轮旋转的各个齿轮的齿轮间距误差校正值被存储在非易失性存储器中。 音调误差计算装置（E）是指当前位置寄存器（D），从非易失性存储器读出与当前位置对应的音调纠错数据（14b），并将数据相加以获得叠加的音高误差校正值 。 来自内插装置（B）的叠加的音调误差校正值和内插脉冲由加法器（C）相加在一起，以获得音调误差校正的输出脉冲，然后将其提供给轴控制电路（18）。 因此，即使对于各个齿轮的齿轮间距误差校正值相对较少，也可以与齿轮间距误差校正值的叠加成比例地精确地执行齿轮间距误差校正。
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公开(公告)号：US5539972A
公开(公告)日：1996-07-30
申请号：US430319
申请日：1995-04-28
申请人： Takao Sasaki , Toshiaki Otsuki , Ryouji Eguchi
发明人： Takao Sasaki , Toshiaki Otsuki , Ryouji Eguchi
CPC分类号： G05B19/182 , G05B2219/45203 , G05B2219/45216 , G05B2219/50225 , G05B2219/50226 , Y10T29/49881 , Y10T29/53691
摘要： Disclosed is a method of screwing a pipe having threads with a different pitch on the outside and inside thereof into an object and assembling the same thereto by using a CNC machine tool. A male thread provided to a spindle is moved to an initial point I and point R by a quick traverse and then moved downward from the point R at a given speed and RPM. More specifically, a pipe is screwed into the object in accordance with the pitch of the thread on the outside thereof and assembled to a female thread of the object. When the male thread reaches a point Z and the pipe is assembled to the female thread of the object, the male thread is moved upward to the point R at a given speed and RPM. More specifically, the male thread is relieved from the pipe in accordance with the pitch of the thread on the inside of the pipe. Only the male thread is moved upward by the movement thereof to enable the pipe to remain engaged with the female thread, whereby the assembly of the pipe to the object is completed.
摘要翻译： 公开了一种在外部和内部将具有不同节距的螺纹的管螺纹连接到物体中并通过使用CNC机床将其组装在一起的方法。 提供给主轴的外螺纹通过快速移动移动到初始点I和点R，然后以给定速度和RPM从点R向下移动。 更具体地，根据其外侧的螺纹的螺距将管道旋入物体中，并组装到物体的内螺纹上。 当外螺纹到达点Z并且管被组装到物体的内螺纹时，外螺纹以给定的速度和RPM向上移动到点R. 更具体地，外螺纹根据管内侧的螺纹的间距从管中释放。 只有外螺纹通过其移动向上移动，以使管能够与内螺纹保持接合，从而完成对管道的组装。
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公开(公告)号：US5043644A
公开(公告)日：1991-08-27
申请号：US536549
申请日：1990-07-10
申请人： Takao Sasaki , Toshiaki Otsuki , Ryouji Eguchi
发明人： Takao Sasaki , Toshiaki Otsuki , Ryouji Eguchi
IPC分类号： G05B19/4068 , G05B19/4093
CPC分类号： G05B19/4068 , G05B2219/35269 , G05B2219/35295 , G05B2219/36074 , G05B2219/36525 , G05B2219/50103
摘要： A method of correcting a machining program for a numerical control device during an execution of the program is provided. A created machining program, which is stored in a memory (5), is executed for a program check, a single block stop is effected at a portion (2) at which an error is found in the machining program, and the machining program is executed in reverse to a predetermined block (P1). Then the machining program is corrected and executed. Accordingly, it is not necessary to return to the beginning of the machining program for a reexecution thereof, and thus the machining program can be efficiently corrected.
摘要翻译： PCT No.PCT / JP89 / 01161 Sec。 371日期1990年7月10日 102（e）1990年7月10日PCT PCT 1991年11月15日PCT公布。 出版物WO90 / 06544 日期：1990年6月14日。提供了在执行程序期间校正数控装置的加工程序的方法。 执行存储在存储器（5）中的创建的加工程序用于程序检查，在加工程序中发现错误的部分（2）处执行单个程序段停止，并且加工程序是 与预定块（P1）相反地执行。 然后修正并执行加工程序。 因此，不需要返回到加工程序的开始以进行重新执行，因此可以有效地校正加工程序。
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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：US5260879A
公开(公告)日：1993-11-09
申请号：US773592
申请日：1991-11-21
CPC分类号： G05B19/184 , B23F23/006 , G05B19/186 , G05B2219/45214 , G05B2219/50216 , Y10T409/100159
摘要： Disclosed is a numerical control apparatus for controlling a numerically controlled machine tool such as a hobbing machine and the like. An axis control circuit (14) provided with a synchronization control means (8) controls the rpm of a spindle motor (5) and the rpm of a servo motor (11) based on feedback pulses supplied from a position coder (7) connected to a hob axis (3), so that a ratio of the rpm of the hob axis (3) to the rpm of a C-axis (13) has a given value. A first internal counter (15a) monitors the number of feedback pulses supplied from the position coder (7) and a second internal counter (15b) monitors the number of pulses distributed to the C-axis (13), and when a ratio of the rpm of the hob axis (3) to the rpm of the C-axis (13) is to be changed, a correction pulse calculation means (9) calculates correction pulses based on the number of rotation pulses of the hob axis (3) and the number of the rotation pulses of the C-axis (13) counted by the first and second internal counters (15a, 15b). The correction pulses are supplied to the C-axis (13) to accelerate or decelerate the rpm of the C-axis (13) and thereby achieve a new synchronous relationship between the hob axis (3) and the C-axis (13) during the rotation of the hob axis (3) and C-axis (13).
摘要翻译： PCT No.PCT / JP91 / 00356 Sec。 371日期1991年11月21日 102（e）日期1991年11月21日PCT 1991年3月13日PCT公布。 出版物WO91 / 14979 1991年10月3日公开。公开是用于控制诸如滚齿机等的数控机床的数控装置。 设有同步控制装置（8）的轴控制电路（14）基于从位置编码器（7）提供的反馈脉冲来控制主轴电动机（5）的转速和伺服电动机（11）的转速， 滚刀轴（3），使得滚刀轴（3）的rpm与C轴（13）的rpm的比率具有给定值。 第一内部计数器（15a）监视从位置编码器（7）提供的反馈脉冲的数量，第二内部计数器（15b）监视分配给C轴（13）的脉冲数， 要改变滚轴（3）的转速（rpm）至C轴（13）的转数，则校正脉冲计算装置（9）根据滚刀轴（3）的旋转脉冲数和 由第一和第二内部计数器（15a，15b）计数的C轴（13）的旋转脉冲数。 校正脉冲被提供给C轴（13）以加速或减速C轴（13）的转速，从而在滚动轴（3）和C轴（13）之间达到新的同步关系 滚刀轴（3）和C轴（13）的旋转。
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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：US4899096A
公开(公告)日：1990-02-06
申请号：US309669
申请日：1989-02-07
IPC分类号： G05B19/4103 , G05B19/41 , G05B19/416
CPC分类号： G05B19/41 , G05B2219/34144
摘要： An involute interpolation method for use in machining by a numerical control apparatus.A rotational direction (G03.1) of an involute curve, coordinates of an end point (Xe, Ye), a center position (I, J) of a base circle as viewed from a start point, and a radius (R) of the base circle are instructed, from two equations representing the involute curve sequence of points are obtained, and interpolation of the involute curve is performed while interpolating those points in a range of the angle .theta. corresponding to the start point on the involute curve to the end point thereon.The increment of .theta. is decremented in proportion to the increment of the angle owing to the factor K/ (R.multidot..theta.), so that the interpolation is performed in such a manner that the speed in the tangential direction is made at constant, whereby a machining speed of the involute curve is maintained at constant.
摘要翻译： 一种用于数控机械加工的渐开线插补方法。 渐开线曲线的旋转方向（G03.1），终点（Xe，Ye）的坐标，从起点观察的基圆的中心位置（I，J）和半径（R） 指示基圆，从获得表示渐开线曲线序列的两个方程式获得渐开线曲线的内插，同时在与渐开线曲线上的开始点对应的角度θ的范围内插入那些点到最后 点上。 由于因子K /（Rxθ），θ的增量与角度的增量成比例地减小，使得以使得切线方向上的速度恒定的方式执行插值，由此进行加工 渐开线曲线的速度保持恒定。
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公开(公告)号：US4926102A
公开(公告)日：1990-05-15
申请号：US309664
申请日：1989-02-06
IPC分类号： G05B19/4103 , G05B19/41
CPC分类号： G05B19/41 , G05B2219/34144 , Y10T409/101272 , Y10T409/303752
摘要： An involute interpolation method for machining operations is used in a numerical control apparatus.A rotational direction (G03.1) of an involute curve, an incremental distance along the involute curve or an incremental angle, a center position (X.sub.0, Y.sub.0) of a base circle and a radius (R) of the base circle are obtained per the instruction. The involute curve is interpolated using a predetermined distance or predetermined angle.The above processing is executed with a numerical control apparatus and pulse distributions are continuously carried out. Therefore, the involute curve can be interpolated without need for a special program producing system.
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公开(公告)号：US5214591A
公开(公告)日：1993-05-25
申请号：US663935
申请日：1991-02-27
IPC分类号： G05B19/18 , G05B19/41 , G05B19/4103
CPC分类号： G05B19/182 , G05B19/41 , G05B19/4103 , G05B2219/34144
摘要： An involute interpolation error correcting method corrects an error on involute interpolation in a numerical control system for machining gears and pump vanes. The method corrects an insufficient cut in an actual configuration of a workpiece which is machined along a first involute curve (In1) that is commanded. A radius of curvature (Rs) from a base circle (C) to a starting point (Ps3) of the insufficient cut on the first involute curve (In1), and an error (De) which occurs at an ending point of the first involute curve (In1) in a direction normal to the insufficient cut, are determined from the machined configuration, and set as parameters in the numerical control system. On interpolation from the starting point (Ps3) of the insufficient cut to the ending point (Pe1) of the first involute curve, a first offset at the time the first involute curve is interpolated is changed to a second offset which is increased from the first offset by the error (De). On interpolation up to a point (Ae1), the offset is restored to its original value. The configuration which is machined according to the above process is free of the insufficient cut. An excessive cut can be prevented when the offset is reduced.
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