专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06204622B1 Position controller 失效
标题翻译：位置控制器
公开(公告)号：US06204622B1
公开(公告)日：2001-03-20
申请号：US09380757
申请日：1999-09-13
申请人： Kazuhiro Tsuruta
发明人： Kazuhiro Tsuruta
IPC分类号： G05B1136
CPC分类号： G05B19/232 , G05B19/19 , G05B2219/41442 , G05B2219/41444 , G05B2219/42062 , G05B2219/42074
摘要： A position controller has a command generator for generating position instructions, a position control unit for controlling a position by inputting a position instruction and the position of a motor being an object to be controlled, and outputting a speed instruction so that they become coincident with each other, a speed control unit for controlling a speed by inputting a speed instruction and a speed of the motor and outputting a torque instruction so that the speed instruction and speed become coincident with each other. A current control unit is provided for controlling a current on the basis of the torque instruction, wherein the speed control unit is provided with a speed feedback filter which obtains a new speed of a motor by filtering the speed through a low-pass filter, a subtracter which obtains a speed deviation by subtracting the new speed from the speed instruction, an integrator which obtains an integral figure of the speed deviation by time-integrating the speed deviation by a time constant Ti, and a multiplier which multiplies the speed instruction by &agr;(0.0≦&agr;≦1.0). An adder and subtracter adds a signal of the multiplier to the integrated figure of the speed deviation and subtracts the speed therefrom, a multiplier calculates a torque instruction by multiplying the output of the adder and subtracter by a speed loop gain kv, and a torque filter makes a torque instruction into a new torque instruction by filtering it through a low-pass filter.
摘要翻译：位置控制器具有用于产生位置指令的命令发生器，用于通过输入位置指令来控制位置的位置控制单元和作为要被控制的对象的电动机的位置，并且输出速度指令使得它们与每个另一方面，速度控制单元，用于通过输入速度指令和马达的速度来控制速度，并输出转矩指令，使得速度指令和速度彼此一致。提供电流控制单元，用于根据转矩指令控制电流，其中速度控制单元设置有速度反馈滤波器，其通过低通滤波器滤波速度获得电动机的新速度，减法器，其通过从速度指令减去新速度来获得速度偏差;积分器，其通过将速度偏差乘以时间常数Ti获得速度偏差的积分图，乘法器将速度指令乘以α （0.0 <=α<= 1.0）。加法器和减法器将乘法器的信号加到速度偏差的积分图上并从其中减去速度，乘法器通过将加法器和减法器的输出乘以速度环增益kv和转矩滤波器来计算转矩指令通过低通滤波器对其进行滤波，将转矩指令转换为新的转矩指令。

2. 发明授权

US4810945A Numerical control feed device for machine tool 失效
标题翻译：机床数控加料装置
公开(公告)号：US4810945A
公开(公告)日：1989-03-07
申请号：US171222
申请日：1988-03-22
申请人： Takao Yoneda , Haruo Ohmura
发明人： Takao Yoneda , Haruo Ohmura
IPC分类号： B23Q15/013 , G05B19/23 , G05D3/12 , G05B19/25
CPC分类号： G05B19/232 , G05B2219/33261 , G05B2219/41021 , G05B2219/41186 , G05B2219/41442 , G05B2219/45218 , Y02P90/265
摘要： 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.
摘要翻译：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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式