Motor control device for machine tool having plurality of axes

    公开(公告)号:US10189131B2

    公开(公告)日:2019-01-29

    申请号:US15728926

    申请日:2017-10-10

    申请人: FANUC CORPORATION

    摘要: A motor control device for a machine tool having a plurality of axes includes a plurality of motor control units that control motors; an abnormality detection unit provided for at least one of the motor control units and configured to output an abnormality detection signal upon detecting an abnormality with respect to the axis driven by the motor controlled by the motor control unit provided with the abnormality detection unit; a safety operation control unit provided for a motor control unit that is not the motor control unit provided with the abnormality detection unit, the safety operation control unit configured to control the motor upon receiving the abnormality detection signal in such a way that the tool comes out of contact with the workpiece; and a communication unit that transmits the abnormality detection signal outputted by the abnormality detection unit to the safety operation control unit.

    Collision sensing system for rotary welding torch

    公开(公告)号:US10131012B2

    公开(公告)日:2018-11-20

    申请号:US15054248

    申请日:2016-02-26

    申请人: Arben Cenko

    发明人: Arben Cenko

    摘要: A collision sensing system includes an outer housing with a ball roller mounted thereto, a piston, a lower housing, and an electro/mechanical switch assembly having a contact ring. The piston includes a helical groove on its exterior and a tongue extending from a lower end thereof. The ball roller is positioned within the helical groove of the piston. The lower housing has a semi-spherical portion and a groove aligned with the piston tongue. A contact pin assembly extends through the piston and includes a contact pin positioned to contact the contact ring. The collision sensing system is configured such that deflection of a welding torch mounted to the lower housing misaligns the tongue and groove, slides the helical groove along the ball roller, thereby lifting the piston and breaking contact between the contact pin and contact ring.

    TOOL SAFETY SYSTEM AND METHOD OF USE
    43.
    发明申请

    公开(公告)号:US20180328538A1

    公开(公告)日:2018-11-15

    申请号:US15976347

    申请日:2018-05-10

    申请人: Chad A. Kirby

    发明人: Chad A. Kirby

    IPC分类号: F16P3/14 B23Q5/58

    CPC分类号: F16P3/147 B23Q5/58 B25F5/02

    摘要: A tool safety system and method of use thereof which includes a sensor device for detecting when personal protective equipment (“PPE”) is being worn or in proximity with an associated tool. Sensors may be included in the equipment to determine if the equipment is properly being worn, such as pressure or skin-contact sensors within gloves and hard hats, or contact switches for visors to detect that the visor is in a down position.

    MACHINE TOOL CONTROLLER
    44.
    发明申请

    公开(公告)号:US20180004186A1

    公开(公告)日:2018-01-04

    申请号:US15623378

    申请日:2017-06-15

    申请人: FANUC CORPORATION

    发明人: Shunpei TANAKA

    IPC分类号: G05B19/406 B23Q5/58

    摘要: A machine tool controller includes: a voltage detection unit which detects a voltage value of an input power supply; a time measurement unit which measures an occurrence time and a duration time when a voltage drop state occurs with respect to the voltage value; an abnormality determination unit which determines whether a low voltage abnormality or a power failure occurs with respect to the input power supply based on the voltage value and the duration time of the voltage drop state; a machining management unit which acquires a machining condition command and machining information of the machine tool; and a storage unit which stores the voltage value detected by the voltage detection unit, the occurrence time of the voltage drop state measured by the time measurement unit, and the machining information when the abnormality determination unit determines that the low voltage abnormality occurs with respect to the input power supply.

    MOTOR CONTROL DEVICE INCLUDING TORQUE COMMAND LIMIT UNIT

    公开(公告)号:US20170250643A1

    公开(公告)日:2017-08-31

    申请号:US15443116

    申请日:2017-02-27

    申请人: FANUC CORPORATION

    摘要: A motor control device which controls a motor in a machine tool or an industrial machine includes: a power outage detection unit that detects a power outage of a power source which supplies electric power for driving the motor; a DC link voltage detection unit that detects a value of a DC link voltage applied to an amplifier which drives the motor; a comparison unit which compares the value of the DC link voltage with a predetermined threshold value; a torque command generation unit which generates a torque command for driving the motor; a torque limit value setting unit which sets a torque limit value in accordance with a result of a comparison by the comparison unit; and a torque command limit unit which limits the torque command to the torque limit value when a power outage is detected by the power outage detection unit.

    MOTOR CONTROL DEVICE FOR IMPLEMENTING POWER FAILURE PROTECTION OF MACHINE TOOL
    46.
    发明申请
    MOTOR CONTROL DEVICE FOR IMPLEMENTING POWER FAILURE PROTECTION OF MACHINE TOOL 有权
    用于实现电机故障保护的电动机控制装置

    公开(公告)号:US20150021060A1

    公开(公告)日:2015-01-22

    申请号:US14332804

    申请日:2014-07-16

    申请人: FANUC CORPORATION

    发明人: Daisuke TAJIMA

    摘要: A control device for a machine tool including a feed shaft motor for driving a feed shaft and a main shaft motor for driving a main shaft is provided with: a determination unit determining whether an operation of the feed shaft motor satisfies a predetermined determination condition; and an excitation command unit outputting an excitation current command to output excitation current larger than excitation current instructed by a master control unit to the main shaft motor, when the determination unit determines that the predetermined determination condition is satisfied.

    摘要翻译: 一种用于机床的控制装置,包括:用于驱动进给轴的进给轴马达和用于驱动主轴的主轴马达;确定单元,确定进给轴马达的运行是否满足预定的确定条件; 以及励磁指令单元,当所述确定单元确定满足所述预定确定条件时,输出激励电流指令以将大于由主控制单元指示的励磁电流的励磁电流输出到主轴电动机。

    Power tools
    47.
    发明授权
    Power tools 失效
    电动工具

    公开(公告)号:US06959631B2

    公开(公告)日:2005-11-01

    申请号:US10706514

    申请日:2003-11-12

    申请人: Masahiko Sako

    发明人: Masahiko Sako

    摘要: Power tool 1 may include table 5 on which work W is positioned. A portion of a circular blade 3 protrudes above table 5. Circular blade 3 may be driven by a motor. The motor may be controlled by a control device 90. Work W is cut by means of an operator sending work W positioned on an upper face of table 5 in the direction of the circular blade 3 while circular blade 3 is being driven by the motor. Power tool 1 may include first radar device 86 and second radar device 87 for monitoring a predetermined area in the vicinity of circular blade 3. First radar device 86 may detect whether objects other than work are present in the vicinity of a outer edge of circular blade 3. Second radar device 87 may detect the location of objects moving within the predetermined area in the vicinity of circular blade and detects the speed at which the objects are moving in the direction in which work is sent. Control device 90 may cause an emergency halt of the motor in the case where first radar device 86 detects that an object other than work is present in the vicinity of the outer edge of circular blade 3. Further, Control device 90 may cause an emergency halt of the motor in the case where an object detected by second radar device 87 has a predetermined positional relationship relative to circular blade 3 and the detected speed exceeds a predetermined value.

    摘要翻译: 电动工具1可以包括工件W所在的工作台5。 圆形刀片3的一部分在表5上方突出。 圆形刀片3可以由电动机驱动。 马达可以由控制装置90控制。 工件W通过操作者在圆形刀片3被电动机驱动的同时沿着圆形刀片3的方向位于工作台5的上表面上的工件W进行切割。 电动工具1可以包括用于监测圆形刀片3附近的预定区域的第一雷达装置86和第二雷达装置87。 第一雷达装置86可以检测除了工件之外的物体是否存在于圆形刀片3的外边缘附近。 第二雷达装置87可以检测在圆形刀片附近的预定区域内移动的物体的位置,并且检测物体沿着发送方向移动的速度。 在第一雷达装置86检测到除了工作之外的物体存在于圆形刀片3的外边缘附近的情况下,控制装置90可能导致电动机的紧急停止。 此外,在由第二雷达装置87检测到的物体相对于圆形叶片3具有预定的位置关系并且检测到的速度超过预定值的情况下,控制装置90可能导致马达的紧急停止。

    Device for overload protection and braking of a machine part driven by a
motor
    48.
    发明授权
    Device for overload protection and braking of a machine part driven by a motor 失效
    由电机驱动的机器部件的过载保护和制动装置

    公开(公告)号:US5927453A

    公开(公告)日:1999-07-27

    申请号:US977309

    申请日:1997-11-24

    CPC分类号: B23Q11/0092

    摘要: A device for overload protection and for braking a machine part driven by a motor (2), in particular, a tool driven by a cam gear in a stamping and/or bending machine, comprises a module (3), an overload clutch (4) disengaging after exceeding a torque threshold, and a freewheel (6) which, during the braking of the drive shaft (1), blocks in the direction of drive, each being arranged on the drive shaft (1) behind one another in the drive line extending from the motor (2) to the machine part.

    摘要翻译: 一种用于过载保护和用于制动由马达(2)驱动的机器部件的装置,特别是由冲压和/或弯曲机器中的凸轮齿轮驱动的工具,包括模块(3),过载离合器(4) )在超过扭矩阈值之后分离;以及在所述驱动轴(1)的制动期间阻挡在驱动方向上的每个在所述驱动器中彼此相邻布置在所述驱动轴(1)上的自由轮(6) 线从电机(2)延伸到机器部分。

    Quill interlock
    49.
    发明授权
    Quill interlock 失效
    套管互锁

    公开(公告)号:US5791841A

    公开(公告)日:1998-08-11

    申请号:US732512

    申请日:1996-10-15

    申请人: Harry Zones

    发明人: Harry Zones

    摘要: The present invention is a quill interlock for a milling machine. Structurally, the present invention includes a clasp or other attachment means attachable to a milling machine. The clasp carries a switch which is activated when the quill of the milling machine reaches a predetermined, user selected, position on the Z-axis. The switch is connected to the computer controlling the milling machine, causing the computer to relocate the milling machine table to a new X and Y location each time the quill is raised to the predetermined position on the Z-axis.

    摘要翻译: 本发明是用于铣床的套筒互锁。 在结构上,本发明包括可附接到铣床的扣环或其它附接装置。 夹具带有开关,当铣床的轴线到达Z轴上的预定的用户选择位置时,该开关被激活。 开关连接到控制铣床的计算机,使计算机每次将羽毛笔提升到Z轴上的预定位置时,将铣床重新定位到新的X和Y位置。

    Process and apparatus for monitoring the movement of a machine component
    50.
    发明授权
    Process and apparatus for monitoring the movement of a machine component 失效
    用于监测机器部件运动的过程和装置

    公开(公告)号:US5739660A

    公开(公告)日:1998-04-14

    申请号:US566167

    申请日:1995-12-01

    申请人: Alfred Gnann

    发明人: Alfred Gnann

    摘要: Process and apparatus for preventing collisions between two machine components, of which at least a first machine component is displaceable by means of a drive along a straight track relative to the second machine component such that the two components can collide, wherein for the simple and reliable prevention of such collisions a sequence of pulses is generated during movement of at least one of the two components relative to the other component by means of signal generating devices associated with the two machine components, namely such that the distance and/or the length and/or the height of consecutive pulses follows a function of the distance of the two components from one another, measured in track direction, and wherein the drive is controlled as a function of this sequence of pulses.

    摘要翻译: 用于防止两个机器部件之间的碰撞的过程和装置,其中至少第一机器部件可以通过沿着直线轨道的驱动器相对于第二机器部件移动,使得两个部件可以碰撞,其中为了简单可靠 通过借助于与两个机器部件相关联的信号产生装置,在两个部件中的至少一个相对于另一个部件的运动期间产生脉冲序列,即使得距离和/或长度和/ 或者连续脉冲的高度遵循在轨道方向上测量的两个分量彼此的距离的函数,并且其中驱动器作为该脉冲序列的函数被控制。