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    TIME OF FLIGHT CAMERA FOR WELDING MACHINE VISION
    71.
    发明申请
    TIME OF FLIGHT CAMERA FOR WELDING MACHINE VISION 审中-公开
    飞机相机焊接机器视觉时间

    公开(公告)号：US20160375524A1

    公开(公告)日：2016-12-29

    申请号：US14749057

    申请日：2015-06-24

    Applicant: Illinois Tool Works Inc.

    Inventor： Christopher Hsu

    IPC: B23K31/02 ,  B23K37/00

    CPC classification number: B23K31/02 ,  B23K9/095 ,  B23K9/127 ,  B23K26/03 ,  B23K26/044 ,  B23K37/00

    Abstract: A machine-vision-assisted welding system comprises welding equipment, a time of Flight (ToF) camera operable to generate a three-dimensional depth map of a welding scene, digital image processing circuitry operable to extract welding information from the 3D depth map, and circuitry operable to control a function of the welding equipment based on the extracted welding information. The welding equipment may comprise, for example, arc welding equipment that forms an arc during a welding operation, and a light source of the ToF camera may emit light whose spectrum comprises a peak that is centered at a first wavelength, wherein the first wavelength is selected such that a power of the peak is at least a threshold amount above a power of light from the arc at the first wavelength.

    Abstract translation: 机器视觉辅助焊接系统包括焊接设备，可操作以产生焊接场景的三维深度图的飞行（ToF）相机的时间，可操作以从3D深度图提取焊接信息的数字图像处理电路，以及 电路，其可操作以基于提取的焊接信息来控制焊接设备的功能。 焊接设备可以包括例如在焊接操作期间形成电弧的电弧焊设备，并且ToF相机的光源可以发射光，其光谱包括以第一波长为中心的峰，其中第一波长为 被选择为使得峰值的功率至少高于来自第一波长的电弧的光的功率的阈值量。

    Welding power supplies, wire feeders, and systems to compensate a weld voltage via communications over a weld circuit
    74.
    发明授权
    Welding power supplies, wire feeders, and systems to compensate a weld voltage via communications over a weld circuit 有权

    公开(公告)号：US11565337B2

    公开(公告)日：2023-01-31

    申请号：US16836051

    申请日：2020-03-31

    Applicant: Illinois Tool Works Inc.

    Inventor： Peter Mehn ,  Christopher Hsu ,  Maxwell Brock ,  Quinn William Schartner

    IPC: B23K9/095 ,  B23K9/10

    Abstract: Methods and apparatus to communicate via a weld cable are disclosed. An example weld circuit communications device includes a receiver circuit, a processor, and a local communications adapter. The receiver circuit to receive a communication via a weld circuit while current is flowing through the weld circuit or after the current has stopped flowing through the weld circuit, the communication including weld voltage feedback information measured at a device remote from a power supply and remote from the weld circuit communications device while the current is flowing through the weld circuit. The processor generates power supply control information based on the weld voltage feedback information. The local communications adapter transmits the power supply control information to control welding-type power output by a power converter to regulate a weld voltage to a weld voltage setpoint.

    SENSOR ASSISTED HEAD MOUNTED DISPLAYS FOR WELDING
    75.
    发明申请
    SENSOR ASSISTED HEAD MOUNTED DISPLAYS FOR WELDING 有权

    公开(公告)号：US20220273065A1

    公开(公告)日：2022-09-01

    申请号：US17499519

    申请日：2021-10-12

    Applicant: Illinois Tool Works Inc.

    Inventor： Christopher Hsu

    IPC: A42B3/22 ,  G06T1/20 ,  G06F3/01 ,  G06T3/40 ,  G02B27/01 ,  A61F9/06 ,  B23K9/173 ,  B23K9/32 ,  B23K9/095 ,  B23K9/10

    Abstract: Sensor assisted head mounted displays for welding are disclosed. Disclosed example head mounted devices include an optical sensor, an augmented reality controller, a graphics processing unit, and a semi-transparent display. The optical sensor collects an image of a weld environment. The augmented reality controller determines a simulated object to be presented in a field of view, a position in the field of view, and a perspective of the simulated object in the field of view. The graphics processing unit renders the simulated object based on the perspective to represent the simulated object being present in the field of view and in the weld environment. The display presents the rendered simulated object within the field of view based on the position. At least a portion of the weld environment is observable through the display and the lens when the display is presenting the rendered simulated object.

    METHODS AND APPARATUS TO DETERMINE AND DISPLAY HEAT INPUT TO A WELD
    78.
    发明申请
    METHODS AND APPARATUS TO DETERMINE AND DISPLAY HEAT INPUT TO A WELD 审中-公开

    公开(公告)号：US20200254555A1

    公开(公告)日：2020-08-13

    申请号：US16860588

    申请日：2020-04-28

    Applicant: Illinois Tool Works Inc.

    Inventor： Christopher Hsu ,  Jake Zwayer

    IPC: B23K9/10 ,  B23K9/095

    Abstract: Methods and apparatus to determine heat input to a weld are disclosed. An example welding-type power supply includes a power converter to convert input power to output welding-type power, and a controller configured to: during a welding-type operation, calculate average instantaneous power values of the welding-type operation for discrete, non-overlapping time periods by multiplying voltage measurements and corresponding current measurements; identify an end of the welding-type operation; determine a duration of the welding-type operation; calculate a total average instantaneous power of the welding-type operation based on the average instantaneous power values for the time periods and the duration of the welding-type operation; and determine whether an acceptable range of the welding-type operation is exceeded based on the total average instantaneous power and the duration of the welding-type operation.

    Systems, methods, and apparatus to preheat welding wire
    80.
    发明授权
    Systems, methods, and apparatus to preheat welding wire 有权

    公开(公告)号：US10675699B2

    公开(公告)日：2020-06-09

    申请号：US15343992

    申请日：2016-11-04

    Applicant: ILLINOIS TOOL WORKS INC.

    Inventor： Christopher Hsu ,  Dennis Sigl ,  Jake Zwayer ,  James Lee Uecker ,  Jon Michael Patterson

    IPC: B23K9/10 ,  B23K9/24

    Abstract: A contact tip assembly with a preheating tip comprises a welding power source configured to provide welding current to a welding circuit, the welding circuit comprising a welding electrode and a first contact tip of a welding torch. The assembly also includes an electrode preheating circuit configured to provide preheating current through a portion of the welding electrode via a second contact tip of the welding torch, and a voltage sense circuit to monitor a voltage drop across the two contact tips, and the electrode preheating circuit adjusts at least one of the first current or the preheating current based on the voltage drop.

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