Method of and apparatus for producing can bodies welded along the
longitudinal seam
    1.
    发明授权
    Method of and apparatus for producing can bodies welded along the longitudinal seam 失效
    沿着纵向焊缝焊接的罐体的制造方法和设备

    公开(公告)号:US4414455A

    公开(公告)日:1983-11-08

    申请号:US233866

    申请日:1981-02-12

    IPC分类号: B23K11/06 B23K11/24

    摘要: In conventional methods for welding can bodies along their longitudinal seams, high frequency substantially rectangular a.c. currents are used for the welding current to avoid the problem of arcing found in d.c. welders. However, the high frequency a.c. current causes an undesirable degree of heating which produces eddy currents and necessitates cooling equipment. To overcome this problem, a method of producing can bodies welded along their longitudinal seam is provided in which the length of a half wave of the substantially rectangular welding current is matched in length and concurrent with the amount of time required for a can body to pass between the welding electrodes.

    摘要翻译: 在沿着纵向焊缝焊接罐体的常规方法中,高频大致矩形的 电流用于焊接电流,以避免发生在直流电弧中的电弧问题。 焊工 然而,高频率 电流导致产生涡流的不期望的加热程度,并且需要冷却设备。 为了克服这个问题,提供了一种沿其纵向焊缝焊接的罐体的方法,其中基本上矩形的焊接电流的半波长度与罐体通过所需的时间长度相匹配 焊接电极之间。

    Electrode roll arrangement for a resistance roll-welding machine
    2.
    发明授权
    Electrode roll arrangement for a resistance roll-welding machine 失效
    电阻辊式焊接机的电极辊布置

    公开(公告)号:US4150277A

    公开(公告)日:1979-04-17

    申请号:US846818

    申请日:1977-10-31

    IPC分类号: B23K11/06 B23K11/30 B23K11/36

    CPC分类号: B23K11/366

    摘要: An electrode roll-welding arrangement for a resistance roll-welding machine comprising a welding arm adapted to be supported at a machine frame and an electrode roll mounted at an end of the welding arm, the electrode roll being supplied with the welding current by means of the welding arm acting as an electrical conductor and a shaft of the electrode roll mounted in such welding arm. The end of the welding arm receiving the electrode roll is bifurcated or fork-shaped and embodies two fork-like or bifurcated leg members situated essentially in parallelism and opposite one another, each bifurcated leg member having a slot which opens towards the front side or face of the end of the welding arm. Each such slot has at its inward or proximal slot end a bearing cradle for the reception of the shaft of the electrode roll. A clamping element is arranged in each slot and each such clamping element is urged with its contact surfaces against the shaft of the electrode roll as well as against the slot walls in the welding arm by means of an adjustable pressure element which is arranged at the end of each leg member of the welding arm.

    摘要翻译: 一种用于电阻辊焊机的电极辊式焊接装置,包括适于被支撑在机架上的焊接臂和安装在焊接臂的端部处的电极辊,电极辊通过焊接电流被供应焊接电流 作为电导体的焊接臂和安装在该焊接臂中的电极辊的轴。 接收电极辊的焊接臂的端部是分叉的或叉形的,并且包括基本上平行且彼此相对定位的两个叉形或分叉的腿部构件,每个分叉的腿部构件具有朝向前侧或面部开口的狭槽 的焊接臂的端部。 每个这样的狭槽在其内侧或近端的狭槽端具有用于接收电极辊的轴的轴承座。 夹紧元件布置在每个槽中,并且每个这样的夹持元件被其接触表面压靠在电极辊的轴上并且通过可调整的压力元件被推压在焊接臂中的槽壁上,该可调压力元件设置在端部 的焊接臂的每个腿部件。

    Wire resistance-roll welder with brake and tension devices
    3.
    发明授权
    Wire resistance-roll welder with brake and tension devices 失效
    具有制动和拉紧装置的电阻辊焊机

    公开(公告)号:US4137444A

    公开(公告)日:1979-01-30

    申请号:US846633

    申请日:1977-10-31

    申请人: Fred Schalch

    发明人: Fred Schalch

    CPC分类号: B23K11/06 B23K11/36

    摘要: An electrical resistance-roll seam welding machine having a pair of welding rolls or rollers and at least one electrode wire which is guided from a supply station for the infeed of fresh welding wire by means of at least one of the welding rolls to a collecting station or location for used or consumed wire. The electrode wire can be brought into contact by means of the welding rolls with the workpiece which is to be welded. A brake device is arranged between the supply station and the welding rolls and a tension device for the electrode wire is disposed between the welding rolls and the collecting station or location. The sum of the tension force exerted by the tension device upon the wire and the brake force exerted by the brake device upon the wire is great enough in order to continuously maintain in tensioned state the electrode wire through its path of travel between the brake device and the tension device. At least one of the welding rolls is operatively coupled with a drive device which imparts to the electrode wire which is guided by means of said one welding roll a speed of travel coinciding with the desired feed speed of the workpieces during the formation of the welding seam. The difference between the tension force exerted by the tension device upon the wire and the brake force exerted by the brake device upon the wire is smaller than the entrainment force exerted by the periphery of said one welding roll upon the electrode wire.

    摘要翻译: 一种具有一对焊接辊或辊的电阻辊缝焊机和至少一个电极线,其从供给站引导,用于通过至少一个焊接辊将新鲜焊丝进给到收集站 或使用或消耗的电线的位置。 电极线可以通过焊接辊与要焊接的工件接触。 在供给站和焊接辊之间设置有制动装置,并且用于电极线的张紧装置设置在焊接辊与收集站或位置之间。 张力装置对线材施加的张力和由制动装置施加在线材上的制动力的总和足够大,以便连续地将电极线通过其制动装置和制动装置之间的行进路径保持在张紧状态 张力装置。 焊接辊中的至少一个与驱动装置可操作地联接,该驱动装置施加于通过所述一个焊接辊引导的电极丝,在形成焊缝期间与行走件的所需进给速度一致的行进速度 。 由张力装置施加在线材上的拉力与由制动装置施加在线材上的制动力之间的差异小于由所述一个焊接辊的周边施加在电极线上的夹带力。

    Transport device for an electrical resistance welding machine
    4.
    发明授权
    Transport device for an electrical resistance welding machine 失效
    电阻焊机的运输装置

    公开(公告)号:US4162382A

    公开(公告)日:1979-07-24

    申请号:US846819

    申请日:1977-10-31

    申请人: Fred Schalch

    发明人: Fred Schalch

    CPC分类号: B23K11/0876

    摘要: A transport device for use with an electrical resistance welding machine producing longitudinal seams at workpiece bodies or the like which, prior to reaching the welding rolls of the machine, are transported at a desired welding speed by means of the transport device. The transport device comprises at least one endless chain revolving above the workpiece bodies to be transported and having workpiece body-engaging members in the form of pawls hingedly connected in spaced relationship with the endless chain. Each pawl has oppositely extending pawl arms, of which one arm possesses a contact or impact surface intended to bear against the end of a workpiece body engaged thereby and the other arm possesses a control surface which bears against a guide rail stationarily arranged above the lower chain run of the endless chain which revolves over at least two sprocket wheels. The guide rail is constructed at both ends of a linear section thereof so as to have two sections extending in an arc-shaped or curved configuration at the region of the sprocket wheels in such a manner that upon arrival of a pawl in a workpiece feed plane the pawl arm having the contact surface is pivoted in a controlled manner into its workpiece-engagement position and upon departure of the pawl out of the feed plane the contact surface of such pawl arm retains its essentially vertical position with regard to the direction of transport of the workpiece body.

    摘要翻译: 一种与电阻焊接机一起使用的运输装置,其在工件主体等处产生纵向接缝,在到达机器的焊接辊之前,借助于运输装置以期望的焊接速度运输。 运输装置包括至少一个环形链条,在要运输的工件主体上方旋转,并且具有以与环形链间隔开的铰链形式的棘爪形式的工件体接合构件。 每个棘爪具有相对延伸的棘爪臂,其中一个臂具有接触或冲击表面,该接触或冲击表面旨在抵靠与其啮合的工件主体的端部,另一个臂具有一个控制表面,该控制表面与固定地布置在下部链条上方的导轨 运行至少两个链轮的环形链条。 导轨在其直线部分的两端处构造成具有在链轮的区域处以弧形或弯曲构造延伸的两个部分,使得在棘爪到达工件进给平面时 具有接触表面的棘爪臂以受控的方式枢转到其工件接合位置中,并且在棘爪离开进给平面之后,这种棘爪臂的接触表面相对于传送方向保持其基本垂直的位置 工件体。