WORK SUPPORT DEVICE AND WORK SUPPORTING METHOD

    公开(公告)号:US20210264813A1

    公开(公告)日:2021-08-26

    申请号:US17053818

    申请日:2019-03-04

    申请人: HITACHI, LTD.

    IPC分类号: G09B19/24 G09B9/00

    摘要: A control device is provided with: a posture information storage unit that stores posture associated information associated with workability being an evaluation criterion at a time of a posture for each piece of posture information of an operator; a posture information detection unit that acquires posture information of the operator during work as current posture information; a posture information calculation unit that obtains, from the posture associated information, ideal posture information for making improvement on workability of the current posture information, obtained by referring to the posture associated information in the storage unit from the current posture information; and a posture information notification unit that notifies the ideal posture information obtained by the calculation unit as an improvement proposal.

    Laser Welding Method and Welded Joint
    2.
    发明申请
    Laser Welding Method and Welded Joint 审中-公开
    激光焊接方法和焊接接头

    公开(公告)号:US20160325377A1

    公开(公告)日:2016-11-10

    申请号:US15110250

    申请日:2014-01-17

    申请人: HITACHI, LTD.

    摘要: An object of the present invention is to reduce spatter generation by stabilizing a keyhole in a laser welding method. A welded joint in which a plurality of workpieces are welded by irradiation with a laser beam, wherein the following formulae 1 to 3 are satisfied, b/a≧0.6—(formula 1), h/d≧1.0—(formula 2), and h/a

    摘要翻译: 本发明的目的是通过在激光焊接方法中稳定钥匙孔来减少飞溅物的产生。 一种焊接接头,其中通过照射激光束焊接多个工件,其中满足以下公式1至3,b /a≥0.6-(式1),h /d≥1.0-(式2), 和h / a <3.0-(公式3),其中a是跨越多个工件形成的焊道的表面宽度,h是焊道的最大穿透深度,b是焊道的穿透宽度 焊缝的穿透深度为h / 2的位置,d为焊缝中心位置处的贯通深度。

    JOINING PROCESS LINE MONITORING SYSTEM

    公开(公告)号:US20210063316A1

    公开(公告)日:2021-03-04

    申请号:US16644155

    申请日:2018-08-30

    摘要: The disclosure provides a joining process line monitoring system capable of preventing joining quality deterioration and operation delay. A joining process line monitoring system 100 includes a joining phenomenon data acquisition part 111 configured to acquire a joining phenomenon of a joining subject member as phenomenon data; an operation state data acquisition part 112 configured to acquire a joining operation state of the joining subject member as operation state data; an evaluation data calculation unit 120 configured to perform time synchronization of the acquired phenomenon data and the acquired operation state data, and associate the acquired phenomenon data and the acquired operation state data with each joining operation location, so as to calculate evaluation data; a difference data extraction unit 130 configured to extract a difference between the evaluation data and reference data set in advance as difference data; an abnormal location determination unit 140 that determines that a portion having a large difference from the joining phenomenon is an abnormal location; and a presentation unit 150 configured to present the abnormal location of a joining portion of the joining subject member based on the difference data.

    Quality Control Device and Quality Control Method

    公开(公告)号:US20190317476A1

    公开(公告)日:2019-10-17

    申请号:US16466871

    申请日:2017-11-08

    申请人: Hitachi Ltd.

    IPC分类号: G05B19/418 H05K13/08 H05K3/34

    摘要: In order to realize stable quality control, provided is a quality control device (1) having an input device which receives data such as an operation condition of each device (21) to (26) in a production system (20) for producing a product; a calculation unit which assigns a value of the operation condition to a correlation formula calculated in advance and calculates a value derived from the correlation formula; and a determination unit which performs good or bad determination on a quality of a workpiece in each process, on the basis of a result calculated by the calculation unit. Further, when “bad” is determined as a result of the good or bad determination, the quality control device (1) calculates an appropriate value of the operation condition and sets the value to each device (21) to (26).

    SKILL TRAINING DEVICE AND SKILL TRAINING METHOD

    公开(公告)号:US20210142693A1

    公开(公告)日:2021-05-13

    申请号:US17258301

    申请日:2019-03-04

    申请人: HITACHI, LTD.

    摘要: A control device includes a storage unit that stores motion assessment index information for mapping a normal range for doing work motion to associated knowledge about the normal range, a motion information detection unit that detects motion information which is the result of measuring motion of a trainee, a motion determination unit that determines whether or not the motion information detected by the motion information detection unit deviates from the normal range stored in the storage unit, and a notification unit that acquires from the storage unit the associated knowledge mapped to the normal range from which the motion determination unit determines that the motion information deviates, and gives notice of the associated knowledge.

    WELDING APPARATUS AND WELDING QUALITY INSPECTION METHOD

    公开(公告)号:US20180099356A1

    公开(公告)日:2018-04-12

    申请号:US15573335

    申请日:2016-03-09

    申请人: HITACHI, LTD.

    发明人: Masanori MIYAGI

    IPC分类号: B23K26/211 B23K26/03

    摘要: A welding apparatus includes: a laser beam irradiation section that emits a laser beam; a spectroscopic apparatus that receives plasma emission from a molten pool formed by laser beam irradiation, and acquires optical spectral information; and an estimation section that estimates material components of a weld zone on the basis of the optical spectral information, and estimates a property of the weld zone on the basis of the material components.