Numerical control machine tool
    1.
    发明授权
    Numerical control machine tool 失效
    数控机床

    公开(公告)号:US4511975A

    公开(公告)日:1985-04-16

    申请号:US387848

    申请日:1982-05-21

    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。

    Position error correction equipment
    2.
    发明授权
    Position error correction equipment 失效
    位置纠错设备

    公开(公告)号:US4502108A

    公开(公告)日:1985-02-26

    申请号:US395005

    申请日:1982-06-29

    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。

    Tool radius compensation system
    3.
    发明授权
    Tool radius compensation system 失效
    刀具半径补偿系统

    公开(公告)号:US4572998A

    公开(公告)日:1986-02-25

    申请号:US484254

    申请日:1983-04-12

    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。

    Numerical control method
    4.
    发明授权
    Numerical control method 失效
    数控方法

    公开(公告)号:US4591968A

    公开(公告)日:1986-05-27

    申请号:US481249

    申请日:1983-04-01

    摘要: A numerical control method for a numerical control device which executes processing based on a machining program composed of multiple items of numerical control command data such as numerical command data and G-code data. Each item of the G-code data is expressed in the form of an alphabetic character G, a numerical value following G, and a code following the numerical value. The method includes inserting the items of G-code data in the machining program at suitable locations, subsequently discriminating the G-code data, and causing the numerical control device to execute processing specified by the discriminated G-code data.

    摘要翻译: 一种用于数字控制装置的数字控制方法,其基于由诸如数字指令数据和G代码数据的多个数字控制命令数据组成的加工程序执行处理。 G代码数据的每个项目以字母G的格式,跟随G的数值和跟随数值的代码表示。 该方法包括在适当的位置将加工程序中的G代码数据项插入,随后识别G代码数据,并使数字控制装置执行由所识别的G代码数据指定的处理。

    Numerical controller equipped with optional block skip function
    5.
    发明授权
    Numerical controller equipped with optional block skip function 失效
    数字控制器配有可选的块跳过功能

    公开(公告)号:US4501998A

    公开(公告)日:1985-02-26

    申请号:US395077

    申请日:1982-06-11

    摘要: A numerical controller having an extended optional block skip function which permits selection of an optional block in a certain specific section of an execution program. In a numerical information storage medium is stored a cutting program in which a specific block is provided with skip object indicating information and skip select information, which is data for deciding whether to skip over the block and which can assume at least two values. Information indicating which ones of the blocks specified as the objects of optional block skip control are to be validated and invalidated is entered from a block select switch. A block skip circuit checks whether or not the skip object indicating information is present at the head or intermediate portion of each block. If not, the block is selected and, if the information is present, the skip select information is collated with information from the block select switch. As a result of this collation, when the block is to be invalidated, the block is skipped over and when the block is to be validated, the block is executed. A variety of cutting operations can be achieved using one cutting program, markedly improving the maneuverability and function of the numerical controller.

    摘要翻译: PCT No.PCT / JP81 / 00279 Sec。 371日期1982年6月11日 102(e)日期1982年6月11日PCT提交1981年10月13日PCT公布。 出版物WO82 / 01425 日期:1982年4月29日。具有扩展的可选块跳过功能的数字控制器,其允许在执行程序的某个特定部分中选择可选块。 在数字信息存储介质中存储有特定块被提供有跳过对象指示信息和跳过选择信息的切割程序,该选择信息是用于决定是否跳过该块并且可以采用至少两个值的数据。 从块选择开关输入指示被指定为可选块跳过控制的对象的哪些块要被验证和无效的信息。 块跳过电路检查跳过对象指示信息是否存在于每个块的头部或中间部分。 如果不是,则选择块,并且如果存在信息,则将跳过选择信息与来自块选择开关的信息进行核对。 作为该对比的结果,当块被无效时,块被跳过,并且当块被验证时,块被执行。 可以使用一个切割程序实现各种切割操作,显着提高了数字控制器的机动性和功能。

    System for correcting positional error in numerical control devices
    6.
    发明授权
    System for correcting positional error in numerical control devices 失效
    数控装置位置误差校正系统

    公开(公告)号:US4514813A

    公开(公告)日:1985-04-30

    申请号:US305785

    申请日:1981-09-25

    IPC分类号: G05B19/41 G06F15/46 G06F11/00

    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。

    Numerical control method and apparatus therefor
    7.
    发明授权
    Numerical control method and apparatus therefor 失效
    数控方法及其设备

    公开(公告)号:US4600985A

    公开(公告)日:1986-07-15

    申请号:US499377

    申请日:1983-05-31

    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。

    Acceleration/deceleration system for a numerical controller
    8.
    发明授权
    Acceleration/deceleration system for a numerical controller 失效
    数字控制器的加速/减速系统

    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

    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。

    Turning control apparatus and method
    9.
    发明授权
    Turning control apparatus and method 失效
    车削控制装置及方法

    公开(公告)号:US4583433A

    公开(公告)日:1986-04-22

    申请号:US482302

    申请日:1983-04-05

    摘要: A method and apparatus for controlling a turning operation in which a workpiece, rotated by a spindle, is cut by a cutting tool transported axially of the spindle in synchronization with the rotation thereof. The rotational speed of the spindle is sensed prior to the start of cutting, and the tool position axially of the spindle is corrected prior to the start of cutting based on the sensed rotational speed. Alternatively, once the rotational speed of the spindle has been sensed, a correction based on the sensed speed can be effected in the position at which a signal indicative of one spindle revolution is generated. The signal acts as a start signal to initiate cutting of the workpiece.

    摘要翻译: 一种用于控制旋转操作的方法和装置,其中通过主轴旋转的工件由与其旋转同步的主轴轴向传送的切割工具切割。 在开始切割之前感测到主轴的转速,并且基于感测的转速在切割开始之前校正主轴轴向的工具位置。 或者,一旦检测到主轴的旋转速度,就可以在产生指示一个主轴转数的信号的位置实现基于感测速度的校正。 该信号用作起始信号以启动工件的切割。

    Method for compensating for servo delay caused at an arc or corner
    10.
    发明授权
    Method for compensating for servo delay caused at an arc or corner 失效
    补偿电弧或拐角引起的伺服延迟的方法

    公开(公告)号:US4543625A

    公开(公告)日:1985-09-24

    申请号:US491333

    申请日:1983-04-27

    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。