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    Capacitor-discharge stud welding apparatus
    51.
    发明授权
    Capacitor-discharge stud welding apparatus 失效
    电容器放电焊接设备

    公开(公告)号：US3767887A

    公开(公告)日：1973-10-23

    申请号：US3767887D

    申请日：1972-04-06

    Applicant: HILTI AG

    Inventor： HARDER K

    IPC: B23K9/10 ,  B23K9/20 ,  B23K11/26 ,  B23K11/04 ,  H02H3/28

    CPC classification number: B23K11/26 ,  B23K9/1081 ,  B23K9/201

    Abstract: In the stud welding apparatus disclosed a battery or bank of capacitors in the main welding line stores welding energy. A current supply unit charges the bank of capacitors. An electronic switch applies the energy from the bank of capacitors to welding electrodes. A control device, which can be turned on and off, renders the electronic switch conductive when it is turned on. A safety circuit reduces the output voltage of the current supply unit when the electronic switch happens to turn on while the control device is turned off. The safety circuit also reduces the voltage across the bank of capacitors.

    Abstract translation: 在公开的螺柱焊接装置中，主焊接线中的电池组或电池组存储焊接能量。 电流供应单元为电容器组充电。 电子开关将来自电容器组的能量施加到焊接电极。 可以打开和关闭的控制装置使电子开关导通。 当控制装置关闭时，当电子开关发生接通时，安全电路可以减小电流源单元的输出电压。 安全电路还可以降低电容器组的电压。

    Automatic welding apparatus
    52.
    发明授权
    Automatic welding apparatus 失效
    自动焊接设备

    公开(公告)号：US3588418A

    公开(公告)日：1971-06-28

    申请号：US3588418D

    申请日：1969-02-05

    Applicant: ROBERT WATSON & CO CONSTRUCTIO ,  EDWARD CHIFFEY

    Inventor： CHIFFEY EDWARD

    IPC: B23K9/20

    CPC classification number: B23K9/201

    Abstract: AN AUTOMATIC WELDING APPARATUS FOR WELDING STUDS TO A BEAM COMPRISING A WHEELED CARRIAGE HAVING A NUMBER OF WELDING GUNS MOUNTED THEREON, EACH WELDING GUN IS ARRANGED TO BE RAISED AND TILTED FROM AN OPERATIVE OR WELDING POSITION TO A STUD ACCEPTING POSITION IN WHICH THE GUN IS AUTOMATICALLY CUT OFF FROM ITS ELECTRIC SUPPLY. THE CARRIAGE IS MOVABLE ALONG THE BEAM BY MEANS OF RECIPROCATING GRIPPER ARRANGEMENT ON THE CARRIAGE WHICH ENGAGES A STUD WELDED TO THE BEAM AND DRAGS THE CARRIAGE ALONG THE BEAM.

    Welding cart for welding a plurality of studs to a beam flange, or other surface
    53.
    发明授权
    Welding cart for welding a plurality of studs to a beam flange, or other surface 失效
    焊接多种焊接到波纹法兰或其他表面的焊接机

    公开(公告)号：US3562484A

    公开(公告)日：1971-02-09

    申请号：US3562484D

    申请日：1963-06-24

    Applicant: TRW INC

    Inventor： MURDOCK ROBERT W

    IPC: B23K9/20

    CPC classification number: B23K9/201

    Abstract: Apparatus for welding a plurality of studs to a beam in a predetermined pattern, said apparatus comprising a frame, a plurality of welding tools carried by said frame and having chucks to receive the studs, rear wheel means supporting a rear portion of said frame, a pair of front wheels, a pair of cams rotatable about a common axis in a fixed position relative to said front wheels and engageable with a portion of said frame for raising and lowering said frame, whereby said tools are raised and lowered to facilitate loading of said chucks, and a crank for simultaneously turning said cams to place different portions of said cams of different thicknesses in engagement with said frame portion, said crank extending outwardly from said machine beyond said frame.

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