会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Electric discharge machining power supply circuit
    • 放电加工电源电路
    • US4978829A
    • 1990-12-18
    • US357009
    • 1989-05-25
    • David Gurwicz
    • David Gurwicz
    • B23H1/02G05F1/08
    • B23H1/022G05F1/08B23H2300/20
    • The power supply circuit has an inductor connected to a DC source through a regulating circuit arranged to maintain a constant current in the inductor. A MOSFET is connected to the inductor and to the spark gap so that when the MOSFET is conducting, current is diverted from the inductor to the spark gap. The frequency and mark-space ratio of switching of the switching device is controlled to control the machining process. A second switching device (40) is arranged to conduct when the voltage across a capacitor (34) exceeds a reference voltage. A diode (46) is used to return excess energy to the DC source.
    • 电源电路具有通过调节电路连接到DC源的电感器,其布置成在电感器中保持恒定的电流。 MOSFET连接到电感器和火花隙,使得当MOSFET导通时,电流从电感器转移到火花隙。 控制切换装置切换的频率和标记空间比来控制加工过程。 第二开关装置(40)布置成当电容器(34)上的电压超过参考电压时导通。 二极管(46)用于向DC源返回过量的能量。
    • 4. 发明公开
    • Schweissgerät und Verfahren zur Herstellung eines vorbestimmbaren Stromverlaufes für ein Schweissgerät
    • 焊接装置和用于产生可预定的电流路径用于焊接设备的过程。
    • EP0644011A1
    • 1995-03-22
    • EP94114270.5
    • 1994-09-10
    • FRONIUS SCHWEISSMASCHINEN KG AUSTRIA
    • Burgstaller, AndreasArtelsmair, Josef
    • B23K9/09G05F1/08
    • B23K9/092G05F1/08
    • Die Erfindung beschreibt ein Verfahren zur Herstellung eines vorbestimmbaren Stromverlaufes für einen Schweißstrom zur Speisung eines Schweißgerätes, insbesondere eines AC-WIG oder Elektroden oder MIG/MAG-Schweißgerätes. Aus einer Wechselspannung wird eine Gleichspannung erzeugt und durch Zerhacken dieser Gleichspannung in eine pulsierende Gleichspannung umgewandelt, wobei die Kurvenform des Stromverlaufes veränderbar ist. Die Kurvenform wird unmittelbar aus aufeinander folgenden insbesondere negativen und positiven Halbwellen (46, 48) aus einer Anzahl von jeder Halbwelle (46, 48) bildenden Referenzsignalen (50) festgelegt. Die einzelnen Referenzsignale (50) werden mit einem der maximal gewünschten Amplitude (55, 56) der Kurvenform entsprechenden Sollwert verändert. Die Zeitdauer (45,47) für eine Halbwelle (46, 48) wird festgelegt, und es wird innerhalb der mit der vorher festgelegten Anzahl von Referenzsignalen (50) eine Halbwelle (46, 48) gebildet.
    • 本发明描述了制造用于焊接电流可预先确定的电流分布的方法用于馈送的焊接设备,特别是AC TIG或棒电极或MIG / MAG焊接设备。 的直流电压从在交流电压产生的,并通过中断该直流电压,被转换成脉动直流电压,电流分布是可变的曲线形状。 曲线形状,从半波(46,48)按照彼此,特别是负和正半波(46,48)直接建立,从形成每个半波(46,48)将数字参考信号(50)。 各个参考信号(50)是具有所期望的值对应于所期望的曲线的形状的最大振幅(55,56)而变化。 对于半波(46,48)的持续时间(45,47)被建立,并且半波(46,48)是形成在所述持续时间与预先建立的参考信号(50)的数量之内。
    • 6. 发明授权
    • Pulse welding apparatus
    • 脉冲焊接设备
    • US5317116A
    • 1994-05-31
    • US668519
    • 1991-03-27
    • Yoichiro TabataShigeo UeguriYoshihiro UedaMasanori MizunoYoshiaki KatouOsamu Nagano
    • Yoichiro TabataShigeo UeguriYoshihiro UedaMasanori MizunoYoshiaki KatouOsamu Nagano
    • B23K9/073B23K9/09B23K9/095B23K9/10G05F1/08
    • B23K9/1062B23K9/0734B23K9/092B23K9/0953G05F1/08
    • A pulse welding apparatus using a pulse discharge such as a pulse arc welding apparatus and a short-circuit transfer arc welding apparatus. A pulse current waveform control circuit, which controls the pulse arc current so that a desired pulse arc current is supplied to the arc welding power supply for outputting the pulse arc current to the welding load unit, is constructed such that the optimum welding operation may be performed without having to adjust circuit components and modify circuit design. The pulse current waveform control circuit is in the form of a microcomputerized digital circuit which operates under a program to provide a desired pulse arc current. A modification of the program can provide any desired pulse arc currents without changing circuits. The optimum welding current waveform parameters or a target arc length signal is learned in the first welding stage and stored into a memory. An arc length feedback control or a current waveform control is performed under the control of program on the basis of the optimum welding current waveform parameters or the target arc length signal so as to control the faulty separation of globules when magnetic blow occurs and so as to reduce the variation of arc length due to external disturbances occurring at the welding torch so that improved welding quality is ensured under various environments.
    • PCT No.PCT / JP90 / 00246 Sec。 371日期1991年3月27日 102(e)1991年3月27日PCT提交1990年2月27日PCT公布。 公开号WO91 / 01842 日期:1991年2月21日。一种使用脉冲放电的脉冲焊接装置,例如脉冲电弧焊接装置和短路转移电弧焊接装置。 控制脉冲电弧电流的脉冲电流波形控制电路被构造为使得最佳焊接操作可以是最佳焊接操作,该脉冲电流波形控制电路控制脉冲电弧电流,使得向焊接电源提供期望的脉冲电弧电流以向焊接负载单元输出脉冲电弧电流 执行而不必调整电路组件并修改电路设计。 脉冲电流波形控制电路是在程序下操作以提供期望的脉冲电弧电流的微计算机数字电路的形式。 该程序的修改可以提供任何期望的脉冲电弧电流而不改变电路。 在第一焊接阶段学习最佳焊接电流波形参数或目标电弧长度信号,并存储到存储器中。 基于最佳焊接电流波形参数或目标电弧长度信号,在程序控制下执行电弧长度反馈控制或电流波形控制,以便在发生磁场发生时控制球的故障分离,从而 减少由焊枪发生的外部干扰引起的电弧长度的变化,从而确保在各种环境下提高焊接质量。
    • 7. 发明授权
    • Consumable electrode type D.C. arc welder
    • 消耗电极型D.C.电弧焊机
    • US5306894A
    • 1994-04-26
    • US25775
    • 1993-03-03
    • Haruo MoriguchiTetsurou IkedaKenzo DanjoToshikazu FujiyoshiMasahiro AoyamaKunio Karino
    • Haruo MoriguchiTetsurou IkedaKenzo DanjoToshikazu FujiyoshiMasahiro AoyamaKunio Karino
    • B23K9/073B23K9/10G05F1/08H02M9/00
    • B23K9/1056G05F1/08
    • An invertor controlled D.C. arc welder of consumable electrode type which is arranged to rectify an a.c. power from a commercial power supply, convert it into a high frequency a.c. power by an invertor, rectify it again to obtain a d.c. power output for welding and stabilize the output voltage by feedback control of the invertor based upon the output voltage and provided with means for discriminating shorting and arcing periods of its welding load from the output voltage and additionally controlling the invertor based upon a resultant discrimination signal to raise the output voltage during the early time of the arcing period, thereby preventing defective welding due to insufficient output current. This invention is especially, effective for supplementing such insufficient output current as an aftereffect of insufficient output power during the shortening period in such welder which is provided with means for reducing the output voltage during the shortening period to prevent generation of undesirable spattering.
    • 一种易损电极类型的逆变器控制直流电弧焊机,其设置为对一个直流电源进行整流。 从商用电源供电,将其转换成高频率。 权力由逆变器,再次纠正获得一个d.c. 用于焊接的功率输出并且通过基于输出电压的逆变器的反馈控制来稳定输出电压,并且具有用于区分其焊接负载的短路和电弧周期与输出电压的装置,并且基于所得到的鉴别信号来控制逆变器 在电弧期的早期阶段提高输出电压,防止由于输出电流不足导致的焊接不良。 本发明特别有效地补充这种不足的输出电流,作为在这种焊接机的缩短期间输出功率不足的后果,其具有用于在缩短期间减小输出电压的装置,以防止产生不期望的飞溅。
    • 8. 发明申请
    • PULSE WELDING APPARATUS
    • 脉冲焊接设备
    • WO1990009858A1
    • 1990-09-07
    • PCT/JP1990000247
    • 1990-02-27
    • MITSUBISHI DENKI KABUSHIKI KAISHATABATA, YoichiroUEGURI, ShigeoUEDA, YoshihiroMIZUNO, Masanori;KATOU, Yoshiaki;NAGANO, Osamu;
    • MITSUBISHI DENKI KABUSHIKI KAISHA
    • B23K09/09
    • G05F1/08B23K9/093
    • A pulse welding apparatus such as of arc welding or short-circuiting arc welding that effects the welding utilizing pulse discharge that develops at the tip of a wire electrode, wherein undercut which is a defect in the shape of welding beads develops which deteriorates the welding when the timing for removing the molten mass grown at the tip of the wire electrode is delayed due to a change in the welding condition or disturbance. To eliminate this defect, the pulse current fed to the material to be welded is divided into a plurality of pulse groups, the pulse groups are allowed to have an average current of a maximum peak after a predetermined period of time has passed from the start of the pulse, the pulse current groups are allowed to have a mountain shape in compliance with the removing phenomenon of the molten mass, and pulse period, pulse width and pulse gap of pulse current groups are differed depending upon the wire feed speed or the pulse group period. In the short-circuiting arc welding method, furthermore, the short-circuiting and arcing periods are instantaneously controlled depending on the detected arc length or the wire feed speed to quickly obtain ideal arc length. By so doing, the molten mass can be regularly removed and moved onto the material to be welded. Even in the short-circuiting arc welding, furthermore, variation decreases between the short-circuiting period and the arcing period. Therefore, growth and removal of the molten mass can be controlled independently of the magnetic blow phenomenon of arc, and favorable welding is carried out to improve the quality irrespective of a change in the shape of welding joint and earth point in real arc.
    • 诸如电弧焊或短路电弧焊的脉冲焊接装置,其利用在线电极的尖端处产生的脉冲放电进行焊接,其中形成焊接珠形状的缺陷的底切,这导致焊接劣化 由于焊接条件或干扰的变化,用于去除在线电极的尖端生长的熔融质量的时间被延迟。 为了消除该缺陷,馈送到待焊接材料的脉冲电流被分成多个脉冲组,脉冲组允许在从一开始就经过预定时间段之后具有最大峰值的平均电流 脉冲电流组允许符合熔融物质的去除现象的山形,并且脉冲电流组的脉冲周期,脉冲宽度和脉冲间隙根据送丝速度或脉冲组而不同 期。 此外,在短路电弧焊接方法中,根据检测出的电弧长度或送丝速度瞬时控制短路和电弧时间,以快速获得理想的电弧长度。 通过这样做,熔融物质可以被定期地移除并移动到待焊接的材料上。 此外,即使在短路电弧焊接中,短路时间段与电弧周期的变化也减小。 因此,可以独立于电弧的磁冲现象来控制熔融体的生长和去除,并且进行良好的焊接以提高质量,而与实际电弧中的焊接接头和接地点的形状的变化无关。