Resistance welding apparatus
    35.
    发明授权

    公开(公告)号:US5017749A

    公开(公告)日:1991-05-21

    申请号:US131823

    申请日:1987-12-11

    CPC classification number: B23K11/063 B23K11/309 B23K2201/125

    Abstract: Apparatus for resistance welding an elongate seam in a tubular article, comprises a first electrode wheel outside the article, a second electrode inside the article and a continuous electrode wire arranged to pass over the electrodes to provide surfaces of contact between the electrodes and seam material. The second electrode has a stationary block having a guide surface of like curvature to that of the outer electrode wheel so that the contact arcs of wire passing over the guide surface with the seam material is substantially equal to the contact area of wire passing over the external wheel. The use of this stationary inner electrode improves the weld of geometry and permits welding of can bodies of relatively smaller diameter without use of mercury contact bearings.

    Resistance seam welding machine
    36.
    发明授权
    Resistance seam welding machine 失效
    电阻缝焊机

    公开(公告)号:US4803325A

    公开(公告)日:1989-02-07

    申请号:US141927

    申请日:1988-01-06

    CPC classification number: B23K11/063 B23K11/24 B23K2201/125

    Abstract: A resistance seam welding machine is described, particularly for the longitudinal seam welding of can bodies, wherein, in the secondary loop (16), feed and return lines are constructed partially as a double line (18, 28) and in all the remaining portion (18a, 18b, 18c, 20, 24, 26) in the form of a substantially coaxial line. The voltage loss occurring in the secondary loop (16) between welding transformer (14) and welding position (8, 10) and the heat due to energy losses in the machine parts adjacent to the secondary loop are considerably reduced as a result of this construction of the feed return lines.

    Abstract translation: 描述了一种电阻缝焊机,特别是用于罐体的纵向缝焊,其中在次级回路(16)中,进给和返回线部分地构造为双线(18,28),并且在所有剩余部分 (18a,18b,18c,20,24,26)以基本同轴线的形式。 由于这种结构,在焊接变压器(14)和焊接位置(8,10)之间的次级回路(16)中发生的电压损失和由于与次级回路相邻的机器部件中的能量损失引起的热量大大减少 的饲料返回线。

    Monitoring facility for electric welding equipment, in particular as
used for metal box manufacture
    37.
    发明授权
    Monitoring facility for electric welding equipment, in particular as used for metal box manufacture 失效
    电焊设备监控设备,特别是用于金属箱制造

    公开(公告)号:US4714816A

    公开(公告)日:1987-12-22

    申请号:US62205

    申请日:1987-06-15

    Inventor: Luigi Pazzaglia

    CPC classification number: B23K11/257 B23K2201/125

    Abstract: The invention relates to the art field of resistance welding utilizing rollers in conjunction with a continuous copper wire electrode and effected with welding current that remains constant on average, at least within each half-period. According to the invention, the weld between members (generally tinned metal strip) can be monitored by measuring the current that flows through the circuit created by the electrode wire, this being a function of the welding resistance that registers between the welding rollers; the value of the current thus measured is compensated in respect of the inductive effects produced by the magnetic field originating from the welding current, and relayed in digital form to a microprocessor that compares it with given maximum and minimum limits within which the reading must fall for quality of the weld to be assured.

    Apparatus for laser beam welding the longitudinal edges of a can
    38.
    发明授权
    Apparatus for laser beam welding the longitudinal edges of a can 失效
    用于激光束焊接罐的纵向边缘的装置

    公开(公告)号:US4713519A

    公开(公告)日:1987-12-15

    申请号:US915862

    申请日:1986-10-06

    CPC classification number: B23K26/0838 B23K26/244 B23K26/262 B23K2201/125

    Abstract: The invention involves the use of laser beam welding for the mass production of welded shells for sheet metal cans. The high requirements as to the precision of the welded seam are obtained through a guide system for exactly guiding pieces to the welding machine and consisting of an X-rail, a guide bar and the spring loaded jaws of a caterpillar tractor. A smooth welded seam is produced on the inner side of the can shell by having the seam welded from the inside of the can shell as well as from the outside by means of a laser beam.

    Abstract translation: 本发明涉及使用激光束焊接来大量生产用于钣金罐的焊接外壳。 通过导向系统获得对焊缝精度的高要求,用于将零件精确地引导到焊接机,并由X导轨,导杆和卡特彼勒拖拉机的弹簧加载的夹爪组成。 通过从罐体的内部以及从外部通过激光束焊接的缝隙,在壳体的内侧产生光滑的焊缝。

    Method and apparatus for pulsed high energy density welding
    39.
    发明授权
    Method and apparatus for pulsed high energy density welding 失效
    脉冲高能密度焊接方法和装置

    公开(公告)号:US4574176A

    公开(公告)日:1986-03-04

    申请号:US555641

    申请日:1983-11-28

    Inventor: Charles M. Sharp

    Abstract: A method and apparatus for high speed welding are disclosed wherein a continuous weld is formed at high speed along a member with a plurality of overlapping welds formed by pulses of high density energy from a pulsed high energy density welding device such as an electronically pulsed gas laser. The movement of the member being welded is detected in the vicinity of the pulsed laser. The pulsed laser is controlled in response to the detected movement so that the energy for welding from the pulses per unit length of the member being welded is accurately controlled. The control of the laser involves pulsing of the laser in response to the detected movement of the member so that the pitch of the overlapping welds along the member is substantially constant. Also, the power of the laser pulses is controlled and adjusted in a predetermined manner in response to the detected movements. The high speed movement of the member is detected by detecting the leading edge of the moving member at or upstream of the pulsed laser and also continuously detecting the position of the moving member at or as it moves past the pulsed laser. High quality welds can be made in materials at speeds of 22-40 m/min. or more with the method and apparatus.

    Abstract translation: 公开了一种用于高速焊接的方法和装置,其中沿着具有多个由来自脉冲高能密度焊接装置(例如电子脉冲气体激光器)的高密度能量的脉冲形成的多个重叠焊接的部件高速形成连续焊接 。 在脉冲激光附近检测被焊接部件的移动。 响应于检测到的移动来控制脉冲激光,从而准确地控制来自被焊接部件的每单位长度脉冲的焊接能量。 激光的控制涉及激光器的脉冲响应于检测到的部件的运动,使得沿着部件的重叠焊缝的间距基本上是恒定的。 此外,响应于检测到的移动,以预定方式控制和调整激光脉冲的功率。 通过检测脉冲激光器的上游或上游的移动部件的前缘来检测部件的高速运动,并且还可以在移动部件移动经过脉冲激光器时连续检测移动部件的位置。 高质量的焊缝可以以22-40 m / min的速度在材料上制成。 或更多的方法和装置。

    Method of butt welding sheet metal
    40.
    发明授权
    Method of butt welding sheet metal 失效
    金属板对接方法

    公开(公告)号:US4341943A

    公开(公告)日:1982-07-27

    申请号:US234081

    申请日:1981-02-13

    Applicant: Carl J. Nilsen

    Inventor: Carl J. Nilsen

    Abstract: A method of positioning and guiding two edges of thin sheet metal in such a manner that the edges are urged into overlapping relationship with each other under pressure and are continuously moved in a longitudinal direction while converging toward each other. The edges of the sheet metal are forced out of overlapping relationship against the pressure so that such edges are in abutting relationship with each other at the point of convergence at which time such edges are welded together by a source of heat.

    Abstract translation: 以这样的方式定位和引导薄金属板的两个边缘的方法,使得边缘在压力下彼此被推压成重叠关系,并且在纵向方向上相互朝向彼此会聚地连续移动。 金属片的边缘被迫离开与压力的重叠关系,使得这些边缘在会聚点处彼此邻接关系,此时这种边缘通过热源焊接在一起。

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