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公开(公告)号:US4600985A
公开(公告)日:1986-07-15
申请号:US499377
申请日:1983-05-31
IPC分类号: G05B19/408 , G05B19/416 , G05B19/405
CPC分类号: G05B19/408 , G05B19/416 , G05B2219/35356 , G05B2219/43009 , G05B2219/49164
摘要: First and second tool control blocks respectively precede and follow a corner on a tool path. A pulse distribution computation based on NC command data in the second block is not executed at the instant that a pulse distribution computation based on NC command data in the first block ends. Rather, a pulse distribution computation based on the NC command data in the second block is performed starting at the instant that a feed speed based on the NC command data in the first block is reduced to a prescribed speed by being decelerated. As a result, the torch of a gas cutting machine or the like will cut the corner portion quickly with a high degree of accuracy and without cutting the corner to an overly rounded shape.
摘要翻译: 第一和第二个刀具控制块分别在刀具路径上的拐角之前和之后。 在基于第一块中的NC命令数据的脉冲分配计算结束的时刻,不执行基于第二块中的NC命令数据的脉冲分布计算。 相反,基于第一块中的NC命令数据的进给速度通过减速将速度降低到规定速度的时刻开始,基于第二程序段中的NC命令数据进行脉冲分配计算。 结果,气割机等的火炬将以高精度快速地切割拐角部分,并且不将角部切割成过度圆形。
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公开(公告)号:US4543625A
公开(公告)日:1985-09-24
申请号:US491333
申请日:1983-04-27
申请人: Ryoichiro Nozawa , Hideaki Kawamura , Takao Sasaki
发明人: Ryoichiro Nozawa , Hideaki Kawamura , Takao Sasaki
IPC分类号: B23Q15/00 , G05B19/416 , G05B19/42
CPC分类号: G05B19/416 , G05B2219/43203 , G05B2219/49164
摘要: A numerical control method for executing numerical control processing using a numerical control unit (102), based on a machining program having plural items of command data recorded on an NC tape (101). Under the numerical control method, numerical control processing is executed based on a succeeding item of command data which has been preread or which has been read after completion of numerical control processing based on an item of preceding command data. An upper limit feed speed (V.sub.L, V.sub.C), based on a workpiece shape commanded by the machining program and on an allowable machining error, is previously determined and stored in registers (RG1, RG2). The magnitude of the upper limit feed speed (V.sub.L, V.sub.C) and the magnitude of an actual feed speed (Vi) is compared, and the actual feed speed is clamped to the upper limit feed speed V.sub.L, V.sub.C, even when Vi exceeds V.sub.L or V.sub.C.
摘要翻译: PCT No.PCT / JP82 / 00343 Sec。 371日期:1983年4月27日 102(e)日期1983年4月27日PCT申请日1982年8月27日PCT公布。 公开号WO83 / 00755 日期1983年3月3日。一种用于使用数控单元(102)基于具有记录在NC带(101)上的多个命令数据的加工程序来执行数字控制处理的数值控制方法。 在数值控制方法下,基于先前命令数据的前一项的数据控制处理完成后的预读或已读取的命令数据的后续项执行数控处理。 预先确定基于由加工程序指定的工件形状和允许的加工误差的上限进给速度(VL,VC)并将其存储在寄存器(RG1,RG2)中。 比较上限进给速度(VL,VC)的大小和实际进给速度(Vi)的大小,并且即使当Vi超过VL时,实际进给速度也被钳位到上限进给速度VL,VC VC。
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公开(公告)号:US4554497A
公开(公告)日:1985-11-19
申请号:US610983
申请日:1984-05-14
申请人: Ryoichiro Nozawa , Hideaki Kawamura , Takao Sasaki
发明人: Ryoichiro Nozawa , Hideaki Kawamura , Takao Sasaki
IPC分类号: B23Q15/013 , B23Q5/22 , B23Q5/36 , B25J9/16 , G05B19/4103 , G05B19/416 , G05B21/02
CPC分类号: G05B19/4103 , G05B19/416 , G05B2219/34167
摘要: An acceleration/deceleration circuit for raising or lowering a feed velocity, in order to achieve a commanded velocity, over a prescribed time constant irrespective of the magnitude of a change in velocity. The acceleration/deceleration circuit includes means (301) for computing a traveling distance along each axis every sampling period (T), a first storage section (#1 through #n) for storing n samplings of traveling distance components along each axis, a second storage section SUM for storing results of computation, and an arithmetic section (ADD, ACC, DIV) for performing an operation:.sub..DELTA. Xn-.sub..DELTA. Xo+St.fwdarw.Stwhere .sub..DELTA. Xn represents the latest sampled traveling distance component, .sub..DELTA. Xo represents the oldest sampled traveling distance component among the traveling distance components stored in the first storage section, and St represents the contents of the second storage section, and for dividing the result St by n, wherein the result St is stored in the second storage section, and St/n is output as a traveling distance component at a present sampling instant.
摘要翻译: PCT No.PCT / JP83 / 00326 Sec。 371日期1984年5月14日 102(e)日期1984年5月14日PCT提交1983年9月30日PCT公布。 出版物WO84 / 01444 PCT 日期1984年4月12日。一种用于提高或降低进给速度的加速/减速电路,以便实现指令速度超过规定的时间常数,而与速度变化的大小无关。 加速/减速电路包括用于计算每个采样周期(T)沿着每个轴的行进距离的装置(301),用于存储沿着每个轴的行进距离分量的n个采样的第一存储部分(#1至#n),第二 用于存储计算结果的存储部分SUM和用于执行操作的运算部分(ADD,ACC,DIV):DELTA Xn-DELTA Xo + St-> St其中DELTA Xn表示最新的采样行进距离分量,DELTA Xo表示 存储在第一存储部分中的行进距离分量中最早的采样行进距离分量,St表示第二存储部分的内容,并且将结果St除以n,其中结果St存储在第二存储部分中,以及 St / n作为当前采样时刻的行进距离分量输出。
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公开(公告)号:US4514813A
公开(公告)日:1985-04-30
申请号:US305785
申请日:1981-09-25
申请人: Ryoichiro Nozawa , Hideaki Kawamura
发明人: Ryoichiro Nozawa , Hideaki Kawamura
CPC分类号: G05B19/41 , G05B2219/41036 , G05B2219/41062 , G05B2219/49194
摘要: A positional error correction system applicable to a numerical control for controlling a machine tool along more than one control axis, such as along X and Y control axes. If the machine tool is to be positionally controlled along the X-axis, the position of the machine tool along the X-axis is corrected by a correction factor which is a function of the position of the machine tool along that axis and the position of the machine tool along the Y-axis, thus providing highly accurate position correction. The position error correction system is not restricted to merely the X and Y axes and can include control of a Z-axis. In such a case the positional correction is performed using a correction factor which is a function of the machine tool position along all three axes.
摘要翻译: 一种适用于沿着多个控制轴(例如沿着X和Y控制轴)控制机床的数字控制的位置误差校正系统。 如果机床要沿着X轴进行位置控制,则机床沿着X轴的位置将通过校正系数来校正,校正系数是机床沿该轴的位置的函数, 机床沿Y轴,从而提供高精度的位置校正。 位置误差校正系统不仅限于X轴和Y轴,并且可以包括Z轴的控制。 在这种情况下,使用作为沿着所有三个轴的机床位置的函数的校正因子来执行位置校正。
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公开(公告)号:US4502108A
公开(公告)日:1985-02-26
申请号:US395005
申请日:1982-06-29
CPC分类号: G05B19/231 , G05B2219/37357 , G05B2219/37431 , G05B2219/41032 , G05B2219/41036 , G05B2219/41055 , G05B2219/41059 , G05B2219/49169 , G05B2219/49196
摘要: Position error correction equipment with which it is possible to perform a backlash correction or a pitch error correction with a high degree of accuracy even if the state of a numerical control machine tool, for instance, temperature, varies. Error correction data groups predetermined by measurement in respective states of the numerical control machine tool are stored in an error storage circuit (MEM) corresponding to the respective states. An error correction data selecting circuit (MPX) selects an error correction data group corresponding to a particular state of the numerical machine tool from the error correction data groups stored in the error storage circuit (MEM). A position correcting circuit (CPG) carries out a position correction by adding a correction pulse to a command pulse or feedback pulse from a position detector through utilization of the error correction data group selected by the error correction data selecting circuit (MPX).
摘要翻译: PCT No.PCT / JP81 / 00308 Sec。 371日期1982年6月29日 102(e)日期1982年6月29日PCT提交1981年10月28日PCT公布。 公开号WO82 / 01601 日期:1982年5月13日。即使数控机床的状态(例如温度)变化,也可以以高精度进行齿隙修正或螺距误差校正的位置误差校正装置。 在数控机床的各个状态下通过测量预先确定的误差校正数据组被存储在对应于各自状态的错误存储电路(MEM)中。 纠错数据选择电路(MPX)从存储在错误存储电路(MEM)中的纠错数据组中选择对应于数值机床的特定状态的纠错数据组。 位置校正电路(CPG)通过利用由纠错数据选择电路(MPX)选择的误差校正数据组,从位置检测器向命令脉冲或反馈脉冲添加校正脉冲,进行位置校正。
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公开(公告)号:US4511975A
公开(公告)日:1985-04-16
申请号:US387848
申请日:1982-05-21
IPC分类号: G05B9/02 , G05B19/406 , G05B23/02 , G06F15/46
CPC分类号: G05B19/406 , G05B2219/35252 , G05B2219/35279 , G05B2219/36542
摘要: The present invention pertains to improvements in signal transmitting and receiving equipment for transmitting and receiving signals regarding the M, S and T functions between a numerical controller and a machine tool. Numeric codes (c.sub.l to c.sub.n) that are sent from the NC apparatus to the machine tool are added or combined with a redundant signal (pt) for checking the validity thereof. Only when it is decided that the received codes are valid, based on the added signals, is the machine tool operated. With such an arrangement, even if a parallel transmission system using many signal lines is employed it is possible to offer an NC machine tool which is capable of preventing erroneous operations related to the M, S and T functions, and hence the NC machine tool has high reliability.
摘要翻译: PCT No.PCT / JP81 / 00242 Sec。 371日期1982年5月21日 102(e)日期1982年5月21日PCT提交1981年9月21日PCT公布。 出版物WO82 / 01262 日期:1982年04月15日。本发明涉及用于发送和接收关于数字控制器和机床之间的M,S和T功能的信号的信号发送和接收设备的改进。 将从NC设备发送到机床的数字代码(c1至cn)添加或与冗余信号(pt)组合以检查其有效性。 只有当确定接收的代码有效时,才会根据添加的信号操作机床。 通过这样的结构,即使采用使用多条信号线的并行传输系统也可以提供能够防止与M,S,T功能有关的错误操作的NC机床,因此NC机床具有 高可靠性。
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公开(公告)号:US4629956A
公开(公告)日:1986-12-16
申请号:US808811
申请日:1985-12-13
CPC分类号: G05B19/253 , G05B19/41 , H02P5/51 , H02P5/56 , G05B2219/41434 , G05B2219/42162 , G05B2219/50216
摘要: There is disclosed a system for controlling a plurality of motors including a spindle motor of a machine tool to rotate synchronously at command speeds. The system comprises a numerical control unit for generating as positional commands trains of distributed pulses having frequencies corresponding to commanded speeds of rotation respectively for the motors, positional control feedback circuits respectively for the motors for producing speed command outputs from the trains of distributed pulses and detected signals indicative of positions of the motors, and speed control feedback circuits respectively for the motors for controlling the speed of the motors based on the speed command outputs and detected signals indicative of speeds of rotation of the motors.
摘要翻译: 公开了一种用于控制多个电动机的系统,包括机床的主轴电动机,以指令速度同步旋转。 该系统包括数字控制单元,用于分别产生具有与分别针对马达的指令转速相对应的频率的分配脉冲的位置指令列,分别用于产生来自分布脉冲列的速度指令输出的马达的位置控制反馈电路, 指示电动机的位置的信号,以及分别用于控制电动机速度的电动机的速度控制反馈电路,其基于速度指令输出和表示电动机转速的检测信号。
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公开(公告)号:US4591771A
公开(公告)日:1986-05-27
申请号:US395030
申请日:1982-06-18
IPC分类号: G05B19/18 , G05B19/41 , G05B19/4103 , G05B19/19
CPC分类号: G05B19/41 , G05B2219/35436 , G05B2219/35439 , G05B2219/36088 , G05B2219/36383 , G05B2219/49243 , G05B2219/50336 , G05B2219/50356
摘要: In order to permit manual operation under a condition where the axial direction of a tool and the direction of a hole to be machined in a workpiece are held in agreement, the tool of a radius .gamma. is rotated by .theta. in the vertical rotational direction and by .rho. in the horizontal rotational direction in a orthogonal coordinate system and in a spherical coordinate system the origins of which coincide with the center of rotation of the tool. Upon doing so, in the orthogonal coordinates, the position of the front end of the tool becomes X.sub.0 =.gamma. sin .theta..multidot.cos .rho., Y.sub.0 =.gamma. sin .theta..multidot.sin .rho. and Z.sub.0 =.gamma. cos .theta.. Therefore, a train of pulses (Hp) from a manual pulse generator are distributed as X-, Y- and Z-axial components in the proportion to the above values by a manual pulse distribution circuit, and motors for the respective axes are driven through servo circuits by the pulses.
摘要翻译: PCT No.PCT / JP81 / 00295 Sec。 371日期1982年6月18日 102(e)1982年6月18日PCT提交1982年10月23日PCT公布。 出版物WO82 / 01602 日期为1982年5月13日。为了在工具的轴向和待加工孔的方向保持一致的条件下允许手动操作,半径γ的刀具以θ转动 在正交坐标系中的水平旋转方向上的垂直旋转方向和rho,以及其起点与工具的旋转中心一致的球面坐标系。 在这样做时,在正交坐标中,工具前端的位置变为X0 =γsinθxcos rho,Y0 =γsinθxsin rho和Z0 = gammacosθ。 因此,通过手动脉冲分配电路将来自手动脉冲发生器的脉冲序列(Hp)以与上述值成比例的X,Y和Z轴分量分布,并且各轴的电机被驱动通过 伺服电路由脉冲。
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公开(公告)号:US4585377A
公开(公告)日:1986-04-29
申请号:US463870
申请日:1983-01-27
CPC分类号: B23F23/08 , B23F23/006 , G05B19/186 , Y10T409/100159 , Y10T409/102226
摘要: The present invention has for its object to make it possible to stop the relative movement of a cutter and a gear blank or change its speed during cutting in a numerical-controlled machine tool for cutting a gear, such as a gear hobbing machine, a gear grinding machine or the like. To perform this, two kinds of pulse distributors, i.e. a synchronization control pulse distributor (152) and a tooth profile forming pulse distributor (153) are provided; the synchronization between the rotation of a cutter (110) and the rotation of a gear blank is provided by the synchronization control pulse distributor (152); and an additional rotation of the rotary shaft of the gear blank necessary for forming the tooth profile of a gear is effected by the tooth profile forming pulse distributor (153).
摘要翻译: PCT No.PCT / JP82 / 00197 Sec。 371日期1983年1月27日 102(e)日期1983年1月27日PCT提交1982年5月26日PCT公布。 出版物WO82 / 04210 日本1982年12月9日。本发明的目的在于,可以在用于切割齿轮的数控机床中停止切割机和齿轮坯料的相对移动或切割期间的速度,例如 滚齿机,齿轮磨床等。 为了实现这一点,提供了两种脉冲分配器,即同步控制脉冲分配器(152)和形成齿廓的脉冲分配器(153); 由同步控制脉冲分配器(152)提供切割器(110)的旋转与齿轮坯料的旋转之间的同步; 并且通过齿廓形成脉冲分配器(153)实现用于形成齿轮的齿廓所需的齿轮坯的旋转轴的附加旋转。
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公开(公告)号:US4572998A
公开(公告)日:1986-02-25
申请号:US484254
申请日:1983-04-12
IPC分类号: G05B19/18 , G05B19/404 , G05B19/41
CPC分类号: G05B19/41 , G05B2219/35262 , G05B2219/50289 , G05B2219/50334 , G05B2219/50336
摘要: A system in which the radius of a tool is compensated for in the three-dimensional machining of a workpiece, wherein a tool is offset from a commanded tool path by a distance commensurate with the tool radius. Machining is performed by commanding the contour of the workpiece as a tool path in a prescribed plane sectioning the workpiece, providing the value of the tool radius and the angle of inclination of a machined surface of the workpiece, computing a first tool offset quantity in the prescribed plane and a second tool offset quantity in a direction at right angles to the prescribed plane, based on the radius of the tool and the angle of inclination, compensating for the radius of the tool in the prescribed plane based on the first tool offset quantity, correcting the position of the tool in a direction at right angles to the prescribed plane based on the second tool offset quantity, and machining the workpiece in three dimensions based on the compensated tool radius in the prescribed plane and the corrected tool position in the direction at right angles to the prescribed plane.
摘要翻译: 一种在工件的三维加工中补偿工具的半径的系统,其中工具从指令的刀具路径偏移与刀具半径相当的距离。 通过将工件的轮廓作为工件路径指定在切割工件的规定平面中,提供工件半径的值和工件的加工表面的倾斜角度来进行加工,计算工件的加工表面的第一刀具偏移量 基于刀具的半径和倾斜角度在与规定平面成直角的方向上的规定平面和第二刀具偏移量,基于第一刀具偏移量补偿工具在规定平面中的半径 基于所述第二刀具偏移量,在与所述规定平面成直角的方向上修正所述刀具的位置,并且基于所述规定平面中的补偿刀具半径和所述矫正刀具位置在所述方向上对所述工件进行三维加工 与规定的平面成直角。
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