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    Numerical control unit for controlling a machine tool to machine a workpiece at an instructed feed rate along linear and rotational axes
    2.
    发明授权
    Numerical control unit for controlling a machine tool to machine a workpiece at an instructed feed rate along linear and rotational axes 失效
    数控单元，用于控制机床以沿着线性和旋转轴的指令进给速度加工工件

    公开(公告)号：US5493502A

    公开(公告)日：1996-02-20

    申请号：US935876

    申请日：1992-08-26

    申请人： Tomomitsu Niwa

    发明人： Tomomitsu Niwa

    IPC分类号： G05B13/02 ,  G05B19/18 ,  G05B19/401 ,  G05B19/4103 ,  G05B19/4155 ,  G05B19/416 ,  G06N7/04 ,  G05B19/41

    CPC分类号： G05B19/4163 ,  G05B19/401 ,  G05B19/4103 ,  G05B19/416 ,  G06N7/04 ,  G05B2219/34065 ,  G05B2219/34077 ,  G05B2219/34078 ,  G05B2219/34079 ,  G05B2219/35286 ,  G05B2219/35569 ,  G05B2219/36214 ,  G05B2219/43009 ,  G05B2219/43129 ,  G05B2219/43137 ,  G05B2219/43141 ,  G05B2219/43151 ,  G05B2219/43152 ,  G05B2219/49121 ,  G05B2219/49143 ,  G05B2219/50054 ,  G05B2219/50109 ,  Y10S706/90

    摘要： A numerical control unit for a machining apparatus which operates under the control of a machining program comprising a plurality of blocks, such blocks being adapted to define a command or instruction for specifying and automatically controlling the relative movement between a machine tool and a workpiece with respect to one or more of linear and rotational axes, and being modifiable at starting-point and end-point areas in a single block to specify desired variations in relative movement or feedrate. The feedrate may be controlled on the basis of preset rules within a single block without dividing a machining path into a plurality of blocks for controlling the feedrate, the preset rules being changeable by an operator whereby his machining know-how can easily be incorporated into the machining program. Rules incorporating machining know-how are set in a knowledge storage section, an inferring section is provided independently of the knowledge storage section to ensure ease of additions and corrections to the rules, and the inferring section synthesizes the results of inference provided by a plurality of rules and deduces a final conclusion, whereby complex control can be easily achieved with various factors taken into consideration. Rules set in the knowledge storage section can be described in a production rule format, allowing a final conclusion to be achieved by fuzzy inference.

    摘要翻译： 一种用于在包括多个块的加工程序的控制下操作的加工装置的数字控制单元，所述块适于定义用于指定和自动控制机床和工件之间的相对运动的命令或指令， 到一个或多个线性和旋转轴线，并且可以在单个块中的起始点和终点区域修改以指定相对运动或进给速度期望的变化。 可以在单个块内基于预设规则来控制进给速度，而不将加工路径分成用于控制进给速度的多个块，预设规则可由操作者改变，由此他的加工专有技术可以容易地并入到 加工程序。 在知识存储部分中设置了包含加工专有技术的规则，独立于知识存储部分提供了推断部分，以确保对规则的容易的添加和更正，并且推断部分综合由多个 规则并推导出最终结论，从而可以通过考虑各种因素轻松实现复杂的控制。 在知识存储部分中设置的规则可以以生产规则格式描述，允许通过模糊推理来实现最终结论。

    Numerical control unit
    4.
    发明授权
    Numerical control unit 失效
    数控单元

    公开(公告)号：US5532932A

    公开(公告)日：1996-07-02

    申请号：US405025

    申请日：1995-03-16

    申请人： Tomomitsu Niwa

    发明人： Tomomitsu Niwa

    IPC分类号： G05B13/02 ,  G05B19/18 ,  G05B19/401 ,  G05B19/4103 ,  G05B19/4155 ,  G05B19/416 ,  G06N7/04 ,  G06F15/18

    CPC分类号： G05B19/4163 ,  G05B19/401 ,  G05B19/4103 ,  G05B19/416 ,  G06N7/04 ,  G05B2219/34065 ,  G05B2219/34077 ,  G05B2219/34078 ,  G05B2219/34079 ,  G05B2219/35286 ,  G05B2219/35569 ,  G05B2219/36214 ,  G05B2219/43009 ,  G05B2219/43129 ,  G05B2219/43137 ,  G05B2219/43141 ,  G05B2219/43151 ,  G05B2219/43152 ,  G05B2219/49121 ,  G05B2219/49143 ,  G05B2219/50054 ,  G05B2219/50109 ,  Y10S706/90

    摘要： A numerical control unit for changing a cutting condition of a machine tool during machining of a workpiece. The numerical control unit includes a knowledge storage section for storing at least two rules for changing the cutting condition. At least one of the rules defines a rate at which movement of the machine tool is decelerated based on the position of the machine tool with respect to a corner of the workpiece. Other rules may define the rate at which movement of the machine tool is decelerated based on the shape of the corner of the workpiece being machined. Also, the other rules could be established based on the material of the tool or workpiece. The knowledge storage section further includes a rule description part and assessment functions. The numerical control unit further includes an inferring section for inferring the optimum value of the cutting condition on the basis of at least the rule or rules which define the rate at which movement of the machine tool is decelerated based on the position of the machine tool with respect to the corner of the workpiece. The numerical control unit then causes a workpiece to be machined in accordance with the cutting condition inferred by the inferring section.

    摘要翻译： 一种用于在加工工件期间改变机床的切割状态的数字控制单元。 数字控制单元包括用于存储用于改变切割条件的至少两个规则的知识存储部。 至少一个规则定义了机床的运动基于机床相对于工件的拐角的位置而减速的速率。 其他规则可以基于被加工工件的角部的形状来限定机床的运动减速的速率。 此外，可以基于工具或工件的材料建立其他规则。 知识存储部分还包括规则描述部分和评估功能。 数学控制单元还包括推断部分，用于基于至少限定基于机床的位置来减速机床的速度的规则或规则来推断切割条件的最佳值， 相对于工件的角落。 然后，数字控制单元根据推断部分推断的切割条件使工件被加工。