专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

WO1988006363A1 OVERCURRENT DETECTOR 审中-公开
标题翻译：过流检测器
公开(公告)号：WO1988006363A1
公开(公告)日：1988-08-25
申请号：PCT/JP1988000172
申请日：1988-02-19
申请人： FANUC LTD , KOBARI, Katsuo , SEKI, Shinji , MATSUBARA, Shunsuke
发明人： FANUC LTD
IPC分类号： H02H06/00
CPC分类号： H02H6/005
摘要： An overcurrent detector realized by using a microcomputer. The apparatus is provided with an overcurrent determining means (5) which calculates the temperature rise (n) = K1P(n) + K2(n-1) relying upon a current (In) that flows into the load, under the conditions of the load having electric resistance (r), ambient temperature at which the load is used, an allowable temperature rise ((max)) of the load, a first coefficient (K1) and a second coefficient (K2). The overcurrent determining means (5) further compares said temperature rise ((n)) with a difference between the allowable temperature rise ((max)) of the load and the ambient temperature at which the load is used, and determines the difference in current to be an overcurrent when the former exceeds the latter.

12. 发明申请

WO1998001944A1 METHOD FOR DIAGNOSING ABNORMALITY OF CIRCUIT MEMBER OF INVERTER DRIVING CONTROLLER FOR DRIVING AND CONTROLLING MOTOR 审中-公开
标题翻译：用于诊断用于驱动和控制电机的逆变器驱动控制器的电路异常的异常的方法
公开(公告)号：WO1998001944A1
公开(公告)日：1998-01-15
申请号：PCT/JP1997002317
申请日：1997-07-03
申请人： FANUC LTD , MATSUBARA, Shunsuke , YAMADA, Yuichi
发明人： FANUC LTD
IPC分类号： H02P07/63
CPC分类号： G01R31/346 , G01R31/42 , H02H7/1227
摘要： An electric current is made to flow between selected phases by turning on the selective switching elements (for example, Tra and Trd) of an inverter. When the inclination of the current waveform detected by means of current detecting circuits IR and IS coincide with a reference inclination, the current detecting circuit and switching element of the circuit to which the current flows and the winding of a motor can be diagnosed as normal. When the inclination of the detected current waveform is "0" or gentler than the reference inclination, the current detecting circuit, switching element, and motor winding can be diagnosed as abnormal and the abnormal part is specified by changing the switching element to be turned on and finding the inclination of the waveform of the current detecting circuit in the same way. When the inclination of the detected current waveform is very steep as compared with the reference inclination, it can be diagnosed that a short circuit occurs in a cable or the motor winding.
摘要翻译：通过接通逆变器的选择性开关元件（例如，Tra和Trd），使电流在选定相之间流动。当通过电流检测电路IR和IS检测到的电流波形的倾斜度与参考斜率一致时，可以正常地诊断电流流过的电路的电流检测电路和开关元件以及电动机的绕组。当检测到的电流波形的倾斜度为“0”或比基准倾斜度慢时，可以将电流检测电路，开关元件和电动机绕组诊断为异常，通过改变开关元件来指定异常部分并且以相同的方式找到电流检测电路的波形的倾斜度。当检测到的电流波形的倾斜与参考斜率相比非常陡峭时，可以诊断出在电缆或电动机绕组中发生短路。

13. 发明申请

WO1994021425A1 TOOL LIFE MANAGEMENT METHOD BY ESTIMATION OF DISTURBANCE LOAD 审中-公开
标题翻译：工具生命管理方法通过估计干扰负荷
公开(公告)号：WO1994021425A1
公开(公告)日：1994-09-29
申请号：PCT/JP1994000336
申请日：1994-03-02
申请人： FANUC LTD , MATSUBARA, Shunsuke , IWASHITA, Yasusuke , OKITA, Tadashi
发明人： FANUC LTD
IPC分类号： B23Q17/09
CPC分类号： G05B19/4065 , G05B2219/37252 , G05B2219/37285 , G05B2219/41368 , G05B2219/41376 , G05B2219/41379
摘要： The invention relates to a method of estimating a load applied on a tool of a machine tool and managing the life of the tool on the basis of the load thus estimated. When a predetermined amount of processing is carried out on a predetermined work, a disturbance loading torque (Td2) exerted on a motor for a main shaft or a motor for a feed shaft is estimated by means of a disturbance estimating observer. When the disturbance loading torque (Td2) thus estimated becomes equal to or greater than a set reference value Ts (A2), a timer (te) is reset to start clocking (A5) and continue the same until the timer (te) clocks a predetermined set period of time (to). When the estimated disturbance loading torque (Td2) is equal to or greater than the set reference value (Ts), a tool change command is issued to suspend the processing (A7 to A9). Since the life of a tool is determined on the basis of a magnitude of a load applied on the tool, it is managed in an objective and positive manner.
摘要翻译：本发明涉及一种估计施加在机床的工具上的负载并基于如此估计的负载来管理工具的寿命的方法。当在规定的作业中进行预定量的处理时，借助于扰动估计观测器来估计施加在用于主轴的马达上的扰动加载扭矩（Td2），或用于进给轴的马达。当由此估计的扰动加载转矩（Td2）变得等于或大于设定的参考值Ts（A2）时，定时器（te）被复位以开始计时（A5）并且继续相同，直到定时器（te）计时预定设定的时间段（至）。当估计的扰动负载转矩（Td2）等于或大于设定的参考值（Ts）时，发出刀具更换命令以暂停处理（A7至A9）。由于工具的使用寿命是基于施加在工具上的负载的大小来确定的，因此以客观和积极的方式进行管理。

14. 发明申请

WO1988003677A1 DIGITAL SERVO SYSTEM 审中-公开
标题翻译：数字伺服系统
公开(公告)号：WO1988003677A1
公开(公告)日：1988-05-19
申请号：PCT/JP1987000860
申请日：1987-11-06
申请人： FANUC LTD , SOGABE, Masatoyo , OKUDA, Kanemasa , SAKAMOTO, Keiji , MATSUBARA, Shunsuke
发明人： FANUC LTD
IPC分类号： G05D03/12
CPC分类号： G05B19/19 , G05B19/232 , G05B2219/41029 , G05B2219/41121 , G05B2219/42093
摘要： A digital servo system capable of quickly bringing an object having a small frictional resistance into halt at a position where it is to be stopped without generating vibration. A velocity command generation means (3) calculates a velocity command value (Vcmd) from a deviation between a position feedback and a position command value detected by the position deviation detection means (2). A velocity deviation detection means (5) calculates a deviation (E) between the velocity command value (Vcmd) and a velocity feedback. A torque command generation means (6) calculates a torque command value (Tcmd) obtained by delaying the deviation (E), and sends it to a motor drive means (7).

15. 发明申请

WO1994029673A1 METHOD FOR DETECTING ABSOLUTE POSITION BY USE OF ENCODER, AND ENCODER 审中-公开
标题翻译：通过使用编码器和编码器检测绝对位置的方法
公开(公告)号：WO1994029673A1
公开(公告)日：1994-12-22
申请号：PCT/JP1994000939
申请日：1994-06-09
申请人： TANIGUCHI, Mitsuyuki , YAMAGUCHI, Hiroshi , TOYOZAWA, Yukio , MATSUBARA, Shunsuke
IPC分类号： G01D05/245
CPC分类号： H03M1/308 , G01D5/2455 , G01D5/2457
摘要： A code plate (1) is attached to the shaft of an object to be detected. The rotation of this plate is detected to generate one-turn signals and increment signals representing a fraction of rotation, formed by equally dividing one turn. The absolute position is measured by use of an ecoder having a counter (15) which counts the incremental signals. The counter (15) is cleared by the first one-turn signal (Z) generated after the encoder starts to operate. After the counter (15) is cleared, it counts up incremental signals with the rotation of the shaft of the object. However, the counter (15) is not cleared by the one-turn signals other than the first one. In this way, the counter (15) provides a value corresponding to the distance between the position where a one-turn signal is received and the position to be measured.
摘要翻译：编码板（1）附着到待检测物体的轴上。检测该板的旋转以产生单匝信号和表示通过等分一匝形成的旋转分数的递增信号。通过使用具有对增量信号进行计数的计数器（15）的解码器来测量绝对位置。计数器（15）由编码器开始工作后产生的第一个单匝信号（Z）清除。计数器（15）清零后，会随着物体轴的旋转而计数增量信号。然而，计数器（15）不被除第一个之外的单匝信号清除。以这种方式，计数器（15）提供对应于接收单匝信号的位置与要测量的位置之间的距离的值。

16. 发明申请

WO1989008287A1 METHOD FOR RETURNING TO ORIGIN 审中-公开
标题翻译：返回原点的方法
公开(公告)号：WO1989008287A1
公开(公告)日：1989-09-08
申请号：PCT/JP1989000150
申请日：1989-02-15
申请人： FANUC LTD , SAKAMOTO, Keiji , MATSUBARA, Shunsuke , MATSUMOTO, Kaname
发明人： FANUC LTD
IPC分类号： G05B19/18
CPC分类号： G05B19/231 , G05B19/4015 , G05B2219/50025
摘要： When returning a movable part to the origin, a numeric control unit (21) reads an absolute position within one turn of a motor (23) from an absolute position detector (24), determines the distance from one pre-determined point of a motor (grid point) to the absolute position thus read and conducts initial setting of the distance B as a command position REFn from the grid point. Thereafter, the numeric control unit (21) outputs a movement command value DELTARn to a digital servo circuit (22) every predetermined time DELTAT, updates the command position REFn in accordance with the formula REFn + DELTARn -> REFn, determines REFn at the first point of time after restoration from step-in of a deceleration limit (25), outputs (N - REFn) as the last commanded movement quantity DELTARn to the digital servo circuit (22) to return a movable part to the position of the origin predetermined on the grid point.

17. 发明申请

WO1988008563A1 SERVO CONTROL CIRCUIT 审中-公开
标题翻译：伺服控制电路
公开(公告)号：WO1988008563A1
公开(公告)日：1988-11-03
申请号：PCT/JP1988000408
申请日：1988-04-26
申请人： FANUC LTD , SAKAMOTO, Keiji , MATSUBARA, Shunsuke
发明人： FANUC LTD
IPC分类号： G05D03/12
CPC分类号： G05B19/19 , G05B2219/41156 , G05B2219/41186 , G05D3/20
摘要： A servo control circuit suppresses an incompletely integrated term contained in the integrated gain in a speed feedback loop of a speed control block (5) at a moment when a deviation between a position signal from a machine system and a movement instruction has exceeded a predetermined reference value. This makes it possible to control the torque instruction to the current control block (6) such that a torque is minimized that develops overshooting according to static frictional characteristics of the machine system. The operation equivalent to the one realized in the analog servo system by non-linearly operating the coefficients of a CR time-constant circuit during electric charge and discharge is realized in the digital servo control system aided by a computer.

18. 发明申请

WO1988003676A1 DIGITAL SERVO SYSTEM 审中-公开
标题翻译：数字伺服系统
公开(公告)号：WO1988003676A1
公开(公告)日：1988-05-19
申请号：PCT/JP1987000859
申请日：1987-11-06
申请人： FANUC LTD , SOGABE, Masatoyo , OKUDA, Kanemasa , MATSUBARA, Shunsuke
发明人： FANUC LTD
IPC分类号： G05D03/12
CPC分类号： G05B19/232
摘要： A digital servo system which is featured by improved precision in the ''halt'' position. A position detection means (1) counts +1 or -1 every time when an object is moved by a predetermined distance, and sends the position of the object to a position error detection means (2). The error relative to a position command value obtained by the position error detection means (2) is sent to a velocity command generation means (3), where it is processed into velocity command. To the velocity command is added by a velocity command offset addition means (8) an offset value having an absolute value smaller than a minimum velocity command value. A motor (40) is driven on the velocity command that is added to the offset value.
摘要翻译：数字伺服系统，其“停止”位置的精度提高。每当物体移动预定距离时，位置检测装置（1）每次计数+1或-1，并将对象的位置发送到位置错误检测装置（2）。将由位置误差检测装置（2）获得的相对于位置指令值的误差发送到速度指令生成装置（3），在该速度指令生成装置中被处理为速度指令。速度指令由速度指令偏移加法装置（8）加上具有小于最小速度指令值的绝对值的偏移值。电动机（40）根据添加到偏移值的速度指令驱动。

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