公开(公告)号：US20040206728A1

公开(公告)日：2004-10-21

申请号：US10805765

申请日：2004-03-22

Inventor： Michael Platte ,  Heinz-Ullrich Mueller ,  Michael Lach ,  Volker Arndt

IPC: B23K011/24

CPC classification number: B23K11/31 ,  B23K11/252 ,  G01N29/2468 ,  G01N2291/0422 ,  G01N2291/267

Abstract: A connecting element for connecting and/or fixing an electrode with an electrode arm of a welding apparatus has a base body; and a sensor selected from the group consisting of a sensor for introducing ultrasound waves into an electrode, a sensor for receiving ultrasound waves and both.

Abstract translation: 用于连接和/或固定具有焊接设备的电极臂的电极的连接元件具有基体; 以及选自由用于将超声波引入电极的传感器，用于接收超声波的传感器和两者的传感器。

公开(公告)号：US20010023857A1

公开(公告)日：2001-09-27

申请号：US09811626

申请日：2001-03-20

Inventor： Mikio Watanabe

IPC: B23K011/24

CPC classification number: B23K11/257 ,  B23K11/241

Abstract: This power supply apparatus comprises a charging circuit for charging a capacitor. The charging circuit includes a transformer, a rectifying circuit, a switching element, an inductance coil and a freewheeling diode. The rectifying circuit full-wave rectifies an AC power supply voltage acquired on the secondary side of the transformer to provide a DC voltage as its output. When the switching element is turned on or becomes conductive, a DC current is allowed to flow through a circuit extending from a positive output terminal of the rectifying circuit through the switching circuit and the inductance coil to a negative output terminal of the rectifying circuit. Once the switching element is switched from its ON state to OFF state, a current based on the inductance coil flows in the forward direction of the diode through a closed circuit consisting of the inductance coil, capacitor and the diode such that the capacitor is charged with the freewheeling current.

Abstract translation: 该电源装置包括用于对电容器充电的充电电路。 充电电路包括变压器，整流电路，开关元件，电感线圈和续流二极管。 整流电路对在变压器的次级侧获取的交流电源电压进行全波整流，以提供直流电压作为其输出。 当开关元件导通或导通时，允许直流电流流经从整流电路的正输出端经由开关电路和电感线圈延伸到整流电路的负输出端的电路。 一旦开关元件从其导通状态切换到断开状态，基于电感线圈的电流通过由电感线圈，电容器和二极管组成的闭合电路在二极管的正向流动，使得电容器被充电 续流电流。

公开(公告)号：US20040173578A1

公开(公告)日：2004-09-09

申请号：US10774129

申请日：2004-02-06

Inventor： Kenneth R. Leach ,  John R. Pippin JR.

IPC: B23K011/24

CPC classification number: B23K11/115 ,  B23K11/255 ,  B23K11/31 ,  B23K11/311 ,  B23K11/315

Abstract: The present invention provides a servo driven spot welder where an electric servo actuator moves at least one of two electrodes to and away from the workpiece. The servo driven spot welder includes a controller that allows accurate control of the position of one of the electrodes such that fine adjustments may be made during the welding event. A power source is provided in communication with the actuator, the controller and the electrodes whereby the controller controls the delivery of power to the actuator for movement and to the electrodes for welding. A sensing device is provided between the servo drive and the electrode for sensing the load on the electrode during the welding event. The sensing device senses when a weld nugget forms on the workpiece and expands to cause an increase in the load and then becomes plastic to cause a decrease in the load. The controller operates to receive a signal from the sensing device that is indicative of the load change at the electrodes and to stop providing weld power to the electrodes when the weld nugget becomes plastic.

Abstract translation: 本发明提供了一种伺服驱动点焊机，其中电伺服致动器将两个电极中的至少一个移动到工件和远离工件。 伺服驱动点焊机包括控制器，其允许精确控制其中一个电极的位置，使得可以在焊接事件期间进行微调。 提供与致动器，控制器和电极连通的电源，由此控制器控制向致动器的动力的传递以及用于焊接的电极。 在伺服驱动器和电极之间提供感测装置，用于在焊接事件期间感测电极上的负载。 感测装置检测焊点何时在工件上形成并膨胀以引起负载增加，然后变成塑性，从而导致负载的减小。 控制器操作以接收来自感测装置的信号，其指示电极处的负载变化，并且当焊接熔核变成塑料时停止向电极提供焊接电力。

公开(公告)号：US20030234239A1

公开(公告)日：2003-12-25

申请号：US10370540

申请日：2003-02-20

Inventor： Hsu-Tung Lee ,  Roman Gr. Maev ,  Elena Yu Maeva ,  Serguei A. Titov

IPC: B23K011/24

CPC classification number: G01N29/4481 ,  B23K11/24 ,  B23K31/006 ,  B23K31/125 ,  G01N3/00 ,  G01N29/0681 ,  G01N29/11 ,  G01N2203/0051 ,  G01N2203/021 ,  G01N2203/0296 ,  G01N2291/02854 ,  G01N2291/02863 ,  G01N2291/2672

Abstract: A system and method for assessing the quality of spot weld joints between pieces of metal includes an ultrasound transducer probing a spot weld joint. The ultrasound transducer transmits ultrasonic radiation into the spot weld joint, receives corresponding echoes, and transforms the echoes into electrical signals. An image reconstructor connected to the ultrasound transducer transforms the electrical signals into numerical data representing an ultrasound image. A neural network connected to the image reconstructor analyzes the numerical data and an output system presents information representing the quality of the spot weld joint. The system is trained to assess the quality of spot weld joints by scanning a spot weld joint with an ultrasound transducer to produce the data set representing the joint; then physically deconstructing the joint to assess the joint quality.

公开(公告)号：US20010032830A1

公开(公告)日：2001-10-25

申请号：US09740406

申请日：2000-12-19

Applicant: EOA Systems, Inc.

Inventor： Peter E. McCormick

IPC: B23K011/24

CPC classification number: B23K11/3054 ,  B23K9/323 ,  B41J2/01 ,  C09D11/40 ,  G01F1/44 ,  G01F9/00 ,  G01M3/2807

Abstract: In an automated welding machine, where a flow of liquid coolant is supplied to welding components on the machine from a source of coolant and then returned to the source of coolant, a safety system is provided that shuts down the flow of coolant in the event of a fault. Faults are detected by a supply sensor and a return sensor for measuring the flow rates of coolant in the supply and return lines. A microprocessor is adapted to compare the supply flow rate and return flow rate and detect differences between the two rates. The difference between the detected rates as compared to a leak threshold value, and the microprocessor is adapted to generate a valve shutoff signal in the event the detected difference in flow rates exceeds the leak threshold value. A value in the supply coolant line is responsive to the valve shutoff signal to shutoff flow of coolant in response thereto.

Abstract translation: 在自动焊接机器中，其中液体冷却剂流从冷却剂源供应到机器上的焊接部件，然后返回到冷却剂源，提供一种安全系统，其在下列情况下关闭冷却剂的流动： 一个错误 故障由供应传感器和返回传感器检测，用于测量供应和返回管路中冷却液的流量。 微处理器适于比较供应流量和回流量并检测两种比率之间的差异。 检测到的速率与泄漏阈值相比的差异，并且微处理器适于在检测到的差异超过泄漏阈值的情况下产生阀关闭信号。 供应冷却剂管线中的值响应于阀关闭信号，以响应于此而关闭冷却剂的流动。

公开(公告)号：US20010027962A1

公开(公告)日：2001-10-11

申请号：US09813317

申请日：2001-03-21

Inventor： Kyoji Moro

IPC: B23K009/00 ,  B23K011/24

CPC classification number: B23K20/023 ,  B23K3/033 ,  B23K11/24 ,  B23K11/252 ,  B23K11/257 ,  H01R43/0214

Abstract: In each odd-numbered unit current-supplying period of a plurality of unit current-supplying periods making up a set current-supplying time, a control unit subjects only positive switching elements to continuous switching operations at an inverter frequency while keeping negative switching elements in an OFF state, whereas in each even-numbered unit current-supplying period, the control unit subjects only the negative switching elements to continuous switching operations while keeping the positive switching elements in an OFF state. This allows a secondary current having substantially a trapezoidal current waveform to flow through a secondary circuit of a power supply apparatus in the positive direction in each odd-numbered unit current-supplying period but in the negative direction in each even-numbered unit current-supplying period. When a current-halting signal is received in the process of such a supply of current, the control unit brings the switching control of an inverter to a halt to interrupt the supply of current at once.

Abstract translation: 在构成设定的电流供给时间的多个单位供电时段的每个奇数单位供电时段中，控制单元仅在正转换元件以逆变器频率进行连续切换操作，同时保持负开关元件 OFF状态，而在每个偶数单元供电时段中，控制单元仅使负极开关元件进行连续切换操作，同时保持正极开关元件处于OFF状态。 这允许基本上具有梯形电流波形的次级电流在每个奇数单位电流供应周期中沿正方向流过电源装置的次级电路，但在每个偶数单位电流供应中流过负方向 期。 当在这种电流供给的过程中接收到电流停止信号时，控制单元使逆变器的开关控制停止以一次中断电流供应。

公开(公告)号：US20020134763A1

公开(公告)日：2002-09-26

申请号：US09866856

申请日：2001-05-29

Inventor： Udo Marek ,  Karl Poll ,  Ulrich Matuschek ,  Axel Heinemann ,  Norbert Metzen

IPC: B23K011/24

CPC classification number: B23K11/241 ,  B23K11/252

Abstract: Apparatus for resistance welding with different welding currents has a welding transformer having a primary and a secondary side. Two welding electrodes are connected at the secondary side to the welding transformer and are each arranged on a respective control arm, one of the arms being movable by an actuating drive. A control and regulating arrangement is connected on the primary side between the welding transformer and a connection to a three-phase network. The control and regulating arrangement has a rectifier circuit connected to all three phases of the network and a controllable welding inverter for converting the rectified voltage into voltage pulses of alternating polarity at a predetermined frequency. At least one electronic component of the rectifier circuit and/or the welding inverter is connected to the drive for moving one of the control arms, for controlling and/or powering the drive.

Abstract translation: 具有不同焊接电流的电阻焊接装置具有初级和次级侧的焊接变压器。 两个焊接电极在次级侧连接到焊接变压器，并且各自布置在相应的控制臂上，其中一个臂可由致动驱动器移动。 控制和调节装置连接在焊接变压器和与三相网络的连​​接之间的初级侧。 控制和调节装置具有连接到网络的所有三相的整流电路和用于将整流电压转换成预定频率的交替极性的电压脉冲的可控焊接逆变器。 整流器电路和/或焊接逆变器的至少一个电子部件连接到用于移动控制臂中的一个的驱动器，用于控制和/或驱动驱动器。

公开(公告)号：US20020011472A1

公开(公告)日：2002-01-31

申请号：US09963658

申请日：2001-09-27

Inventor： Erdogan Karakas

IPC: B23K011/24

CPC classification number: B23K11/241 ,  B23K11/25 ,  B23K11/252 ,  B23K11/36

Abstract: In a resistance welding method using direct current in which a direct voltage that is applied to the welding electrodes is commutated. According to the invention, the polarity of the direct voltage applied to the electrodes is selected before or after each welding process according to at least one parameter detected during the welding process. Preferably, the selection of polarity of the direct voltage of the welding electrodes is controlled by control means before or after each welding operation. The inventive method prevents the welding electrodes from being worn on one side, which, in turn, increases their serviceable life or endurance.

Abstract translation: 在使用其中施加到焊接电极的直流电压换向的直流电阻的电阻焊接方法中， 根据本发明，根据在焊接过程中检测到的至少一个参数，在每个焊接过程之前或之后选择施加到电极的直流电压的极性。 优选地，焊接电极的直流电压的极性的选择在每次焊接操作之前或之后由控制装置控制。 本发明的方法防止焊接电极在一侧被磨损，这又增加了它们的使用寿命或耐久性。

公开(公告)号：US20020008086A1

公开(公告)日：2002-01-24

申请号：US09822990

申请日：2001-03-30

Inventor： Koji Fujii ,  Jing Bo Wang ,  Mamoru Watanabe ,  Yasuhiro Goto ,  Makoto Ryudo ,  Kinichi Matsuyama

IPC: B23K011/24

CPC classification number: B23K31/125 ,  B23K11/252 ,  B23K31/006

Abstract: A joining equipment in which a neural network is employed for controlling a joining process. A dynamic analog model is used for neuron elements configuring the network. The equipment includes a detector, a controller, and a neural network. The detector detects a joining state of a joining portion when work pieces are joined with each other. The controller controls the output of the joining equipment. In response to output signals from the detector, the neural network transmits signals to the controller. Such a structure allows the joining equipment to flexibly respond to complicated changes in joining states. Besides, using similarity with a thermal conduction equation enables to minimize the number of input items fed into the neural network. Furthermore, using an approximate solution to the thermal conduction equation realizes to accelerate the time for numerical calculation without loss of accuracy.

Abstract translation: 使用神经网络来控制接合处理的接合设备。 动态模拟模型用于配置网络的神经元元件。 该设备包括检测器，控制器和神经网络。 当工件彼此接合时，检测器检测接合部的接合状态。 控制器控制连接设备的输出。 响应于来自检测器的输出信号，神经网络向控制器发送信号。 这种结构允许连接设备灵活地响应接合状态的复杂变化。 此外，使用与热传导方程的相似性使得能够最小化馈送到神经网络的输入项的数量。 此外，使用热传导方程的近似解可实现加速数值计算的时间，而不会损失精度。

公开(公告)号：US20010054602A1

公开(公告)日：2001-12-27

申请号：US09881691

申请日：2001-06-18

Inventor： Mikio Watanabe

IPC: B23K011/24

CPC classification number: B23K11/257 ,  B23K11/241 ,  B23K11/26

Abstract: Disclosed is a resistance welding power supply apparatus which comprises a large-capacitance capacitor for storing resistance welding energy in the form of electric charges, a charging circuit for charging the capacitor to a predetermined voltage, four switching elements or means electrically connected between the capacitor and a pair of welding electrodes, and a control unit for allowing selective switching operations of the switching elements during a weld time to provide a control of welding current. Diodes are connected in parallel with the switching elements, respectively, with current polarities opposite thereto. The control unit terminates a switching pause period for polarity switching in a very brief time and initiates a switching control in the next current-supplying mode in the middle of fall of the welding current.

Abstract translation: 公开了一种电阻焊接电源装置，其包括用于存储电荷形式的电阻焊接能量的大容量电容器，用于将电容器充电至预定电压的充电电路，电连接在电容器与电容器之间的四个开关元件或装置 一对焊接电极，以及用于在焊接时间期间允许开关元件的选择性开关操作以提供焊接电流的控制的控制单元。 二极管分别与开关元件并联连接，具有与其相反的电流极性。 控制单元在非常短的时间内终止用于极性切换的切换暂停时段，并且在焊接电流的下降期间开始下一个供电模式的切换控制。