Machine Tool and Brake Checking Method
    76.
    发明申请

    公开(公告)号:US20170291271A1

    公开(公告)日:2017-10-12

    申请号:US15511304

    申请日:2015-06-22

    摘要: A machine tool for detecting a brake failure more reliably in a mechanism that stops the rotation of a vertical shaft by at least two brakes includes a ball screw extended in a vertical direction, a driving motor that rotates the ball screw, a movable part that vertically moves along the ball screw in accordance with the rotation of the ball screw driven by the driving motor, at least two brakes that prevent a fall of the movable part while power supply to the driving motor is stopped, a brake controller that releases at least one of the at least two brakes while power supply to the driving motor is stopped, and a detector that detects presence/absence of a fall of the movable part or a fall distance of the movable part resulting from the release of the at least one brake, thereby detecting a trouble of an unreleased one of the at least two brakes.

    MOTOR CONTROL DEVICE INCLUDING TORQUE COMMAND LIMIT UNIT

    公开(公告)号:US20170250644A1

    公开(公告)日:2017-08-31

    申请号:US15443157

    申请日:2017-02-27

    申请人: FANUC CORPORATION

    摘要: A motor control device includes: a power failure detection unit that detects a power failure; a voltage detection unit that detects a DC link voltage; a switch unit which connects a motor to an amplifier or a resistance; a voltage comparison unit which compares a DC link voltage with a threshold value; a limit value setting unit which sets a torque limit value in accordance with a result of comparison; a torque command limit unit which limits a torque command when a power failure is detected; a prediction value calculation unit which calculates, using an angular velocity, a torque prediction value of the motor when the motor is connected to the resistance; and a torque comparison unit which compares the torque limit value with the torque prediction value, in which in accordance with a result of comparison, the switch unit connects the motor to the amplifier or the resistance.

    PROTECTIVE APPARATUS FOR A MACHINE TOOL
    78.
    发明申请
    PROTECTIVE APPARATUS FOR A MACHINE TOOL 审中-公开
    机械工具保护装置

    公开(公告)号:US20150314409A1

    公开(公告)日:2015-11-05

    申请号:US14700600

    申请日:2015-04-30

    申请人: Chih-Hui Chiu

    发明人: Chih-Hui Chiu

    IPC分类号: B23Q5/58 B23B39/00 B27G19/04

    摘要: A protective apparatus and a machine tool are provided. The machine tool includes an operational element, a driving element, and the protective apparatus. The operational element and the driving element are disposed on machine table. The protective apparatus includes an insulating unit, conducting unit, capacitance sensor, and control unit. The insulating unit is disposed between the operational element and the driving element. The driving element drives the operational element by the insulating unit. The conducting unit contacts the operational element. The capacitance sensor electrically connects the conducting unit for sensing capacitance of the conducting unit. The control unit electrically connects the capacitance sensor and the driving element and determines whether a user approaches the operational element based on the capacitance. When the control unit detects that the distance between the user and the operational element is too close, the control unit stops the operation of the operational element.

    摘要翻译: 提供保护装置和机床。 机床包括操作元件,驱动元件和保护装置。 操作元件和驱动元件设置在机台上。 保护装置包括绝缘单元,导电单元,电容传感器和控制单元。 绝缘单元设置在操作元件和驱动元件之间。 驱动元件通过绝缘单元驱动操作元件。 导电单元接触操作元件。 电容传感器电连接用于感测导电单元的电容的导电单元。 控制单元电连接电容传感器和驱动元件,并且基于电容确定用户是否接近操作元件。 当控制单元检测到用户与操作元件之间的距离太近时,控制单元停止操作元件的操作。

    Machine tool monitoring device
    79.
    发明授权
    Machine tool monitoring device 有权
    机床监控装置

    公开(公告)号:US08474356B2

    公开(公告)日:2013-07-02

    申请号:US12664596

    申请日:2008-04-15

    IPC分类号: B23Q5/58 G01J3/28

    摘要: A machine tool monitoring device having a detection unit, which is configured to detect the presence of a material type in a machine tool work area by spectral analysis of a radiation. The detection unit has a sensor unit having at least one sensitivity region for detecting radiation in a wavelength range that is situated at least partially in the infrared spectrum.

    摘要翻译: 一种具有检测单元的机床监视装置,其被配置为通过辐射的光谱分析来检测机床工作区域中的材料类型的存在。 检测单元具有传感器单元,该传感器单元具有用于检测至少部分位于红外光谱中的波长范围内的辐射的至少一个灵敏度区域。

    Protection device for a motor spindle
    80.
    发明授权
    Protection device for a motor spindle 有权
    电机主轴保护装置

    公开(公告)号:US08132991B2

    公开(公告)日:2012-03-13

    申请号:US12169219

    申请日:2008-07-08

    申请人: Ludwig Jakob

    发明人: Ludwig Jakob

    IPC分类号: B23Q5/04 B23Q5/58 B23Q11/00

    摘要: The invention relates to a protection device for a motor spindle (1) arranged in a housing (2), particularly of a machine tool, having an inner ring (6) fixedly joined to the motor spindle (1) and an outer ring joined to the housing (2). The inner ring (6) is arranged in the outer ring (7) in a way permitting axial motion and a tilting motion, and is placed under elastically resilient preload against the outer ring (7) by means of preloading members (8).

    摘要翻译: 本发明涉及一种用于电动机主轴(1)的保护装置,该电动机主轴(1)布置在具有固定地连接到电动机主轴(1)的内环(6)的外壳(2)中,特别是机床的壳体(2) 外壳(2)。 内圈(6)以允许轴向运动和倾斜运动的方式布置在外圈(7)中,并且通过预加载构件(8)被放置在弹性弹性预压力抵靠外圈(7)上。