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    • 1. 发明授权
    • Thermoplastic polyphenylene ether resin composition
    • 热塑性聚苯醚树脂组合物
    • US5360866A
    • 1994-11-01
    • US49599
    • 1993-04-20
    • Yusuke ArashiroMichiharu KiharaHaruo OhmuraFumiyoshi Yamada
    • Yusuke ArashiroMichiharu KiharaHaruo OhmuraFumiyoshi Yamada
    • C08G65/48C08L63/00C08L67/00C08L71/12C08F255/02
    • C08G65/485C08L71/126C08L63/00C08L67/00Y10S525/905
    • A thermoplastic resin composition comprising (A) from about 10 to about 90% by weight of a hydroxyalkylated polyphenylene ether represented by formula (I): ##STR1## wherein A represents a residue of a polyphenylene ether from which a hydroxyl group is removed; and n represents an integer of from 1 to 10, and (B) from about 10 to about 90% by weight of a resin selected from a carboxyl-containing olefin resin, an epoxy-containing olefin resin, a hydroxyl-containing olefin resin, a polyamide resin, and a saturated polyester resin, provided that when (B) is the olefin resin, the hydroxyalkylated polyphenylene ether also can be represented by formula (II): ##STR2## wherein A is defined as above; X represents an oxygen atom or a nitrogen atom; R.sup.1 represents an alkylene group having from 1 to 12 carbon atoms; R.sup.2 and R.sup.3 each represents a hydrocarbon group having from 1 to 6 carbon atoms; s represents 1 when X is an oxygen atom, or 2 when X is a nitrogen atom; and t represents an integer of from 1 to 3.
    • 一种热塑性树脂组合物,其包含(A)约10至约90重量%的由式(I)表示的羟烷基化聚苯醚:其中A表示羟基的聚亚苯基醚的残基 删除 和n表示1〜10的整数,(B)约10〜约90重量%的选自含羧基的烯烃树脂,含环氧基的烯烃树脂,含羟基的烯烃树脂, 聚酰胺树脂和饱和聚酯树脂,只要(B)为烯烃树脂,羟基烷基化聚苯醚也可以由式(II)表示:其中A定义如上。 X表示氧原子或氮原子; R1表示碳原子数1〜12的亚烷基。 R2和R3各自表示具有1至6个碳原子的烃基; 当X为氧原子时,s表示1,X表示氮原子时表示2。 t表示1〜3的整数。
    • 9. 发明授权
    • Numerical control feed device for machine tool
    • 机床数控加料装置
    • US4810945A
    • 1989-03-07
    • US171222
    • 1988-03-22
    • Takao YonedaHaruo Ohmura
    • Takao YonedaHaruo Ohmura
    • B23Q15/013G05B19/23G05D3/12G05B19/25
    • G05B19/232G05B2219/33261G05B2219/41021G05B2219/41186G05B2219/41442G05B2219/45218Y02P90/265
    • In a numerical control feed device, an objective velocity signal is produced from the difference between command pulses from a numerical controller, which indicative of an objective feed amount and an objective feed rate for a slide of a machine tool, and a feedback feed amount from a pulse generator driven by a servomotor. A subtraction circuit calculates a difference signal based on the objective velocity signal and a feedback velocity signal from a tachogenerator also driven by the servomotor and applies the difference signal to a drive amplifier for driving the servomotor. A frequency-voltage converter generates a feedforward velocity signal depending on the frequency of the command pulses. A gain adjustable amplifier amplifies the feedforward velocity signal at the amplifying ratio designated by the numerical controller and outputs the amplified feedforward velocity signal to the subtraction circuit for addition. The numerical controller determines the amplifying ratio based on various parameters such as the mechanical characteristic of the machine tool, the shape of a workpiece to be machined, an objective feed rate used in an instantaneous machining operation, and so forth.
    • 在数控加料装置中,根据来自数值控制器的指令脉冲之间的差异产生物镜速度信号,该数值控制器表示机床的滑动件的客观进给量和目标进给速率,以及来自 由伺服电机驱动的脉冲发生器。 减法电路基于目标速度信号和来自也由伺服电动机驱动的转速发电机的反馈速度信号来计算差信号,并将差分信号施加到用于驱动伺服电动机的驱动放大器。 频率 - 电压转换器根据指令脉冲的频率产生前馈速度信号。 增益可调放大器以数字控制器指定的放大倍率放大前馈速度信号,并将放大的前馈速度信号输出到减法电路以进行相加。 数值控制器基于机床的机械特性,待加工工件的形状,瞬时加工操作中使用的物料进给速度等各种参数来确定放大率。
    • 10. 发明授权
    • Contact detecting apparatus
    • 接触检测装置
    • US4408933A
    • 1983-10-11
    • US356818
    • 1981-03-10
    • Tamaki TomitaHisaji NakaoHideo NishimuraKunihiko EtoHaruo Ohmura
    • Tamaki TomitaHisaji NakaoHideo NishimuraKunihiko EtoHaruo Ohmura
    • B23Q15/24G01B7/00B23B39/04G01R31/02G08B21/00
    • G01B7/00B23Q15/24Y10T408/16
    • A contact detecting apparatus for detecting the contact of a workpiece with a tool in a machine tool which includes a magnetic coil mounted on the periphery of a spindle head and connected to an AC power source for generating an induced current in a looped secondary circuit including the workpiece, a work table, a machine body, a spindle head, a tool spindle and the tool, when the workpiece and the tool are moved relatively into contact with each other. A first conductive wire forming a secondary winding of one turn is arranged in a parallel relationship with the looped secondary circuit and a current induced therein by energization of the magnetic coil. A second conductive wire is connected at one end thereof to the looped secondary circuit. A detecting device is connected to the first and second conductive wires for detecting contact between the workpiece and the tool based on the voltage induced across the first and second conductive wires.
    • 一种接触检测装置,用于检测工件与机床中的工具的接触,所述接触检测装置包括安装在主轴头的周边并连接到AC电源的电磁线圈,用于在包括所述主轴的环形二次回路中产生感应电流 工件,工作台,机体,主轴头,工具主轴和工具,当工件和工具相对移动相互接触时。 形成一匝的次级绕组的第一导线与环形次级电路成平行关系,并通过电磁线圈通电而在其中感应电流。 第二导线在其一端连接到环路二次电路。 检测装置连接到第一和第二导线,用于基于在第一和第二导线两端产生的电压来检测工件与工具之间的接触。