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公开(公告)号：US3835284A
公开(公告)日：1974-09-10
申请号：US26551872
申请日：1972-06-23
Applicant: HILTI AG
CPC classification number: B23K9/202
Abstract: The surface of a metal workpiece, to which a capacitor discharge stud welding gun is to weld a stud, is precleaned by discharging the gun while it holds a tungsten or other high-melting-point electrode against the workpiece. This passes a stud-welding current pulse through the electrode and the workpiece. It causes a short explosive heating effect that tears up the surface of the workpiece and rips away the thus loosened contamination. It produces a clean metal surface whose extent corresponds to the diameter of the electrode. The magnitude and duration of the pulse are such as to have welded a stud with a lower melting point to the metal. The tungsten electrode may be replaced with titanium, niobium, zirconium, molybdenum etc. These have lower melting points and produce slight surface diffusion of these materials into the metal to form desirable alloys.
Abstract translation: 金属工件的表面，电容器放电螺柱焊枪用来焊接螺柱，通过在将钨或其他高熔点电极固定在工件上时将喷枪排出来进行预清洗。 这通过螺柱焊接电流脉冲通过电极和工件。 它会引起短暂的爆炸加热效应，从而撕裂工件的表面，并撕开如此松动的污染物。 它产生清洁的金属表面，其表面的面积对应于电极的直径。 脉冲的幅度和持续时间使得将具有较低熔点的螺柱焊接到金属。 钨电极可以被钛，铌，锆，钼等替代。这些钨电极具有较低的熔点并且使这些材料轻微地表面扩散到金属中以形成所需的合金。
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公开(公告)号：US3852559A
公开(公告)日：1974-12-03
申请号：US37838573
申请日：1973-07-12
Applicant: HILTI AG
Inventor： TAUERN D
CPC classification number: B23K9/205
Abstract: In the apparatus disclosed, a power contact interrupting the connection between a capacitor discharge device and one of two lines of different polarities that respectively carry current from the device to a stud member and a base member to be welded together, is closed regardless of which polarity of line is connected to which member, by energizing a relay with an alternating current source coupled to each line with a diode and connected to the base member through an operator-actuated trigger. The trigger forms part of the gun that holds the stud member relative to the base member for welding. When the operator actuates the trigger, the AC source attempts to pass one-half cycle of current to one line through one diode and then the other half to the other line through the other diode. The half-cycle passing through the line connected to the base member actuates the relay which closes the contacts. The device can then supply energy to the weld point between the members.
Abstract translation: 在所公开的装置中，断开电容器放电装置与不同极性的两个线之间的连接的电力接触分别将电流从装置传送到柱头构件和待焊接在一起的基座构件，无论哪个极性 线路通过用与二极管耦合到每条线路的交流电源供电继电器并通过操作者致动的触发器连接到基座部件而连接到该部件。 触发器形成枪的一部分，该枪保持螺柱构件相对于用于焊接的基底构件。 当操作员启动触发器时，交流电源试图通过一个二极管将一半电流通过一个电路，然后通过另一个二极管将另一半通过另一个线路。 通过连接到基座部件的线路的半周期驱动闭合触头的继电器。 然后，该装置可以向构件之间的焊接点提供能量。
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公开(公告)号：US3832515A
公开(公告)日：1974-08-27
申请号：US37701173
申请日：1973-07-06
Applicant: HILTI AG
Inventor： TAUERN D
IPC: B23K9/20
CPC classification number: B23K9/202
Abstract: In a bolt welding gun for condenser discharge bolt welding, a bolt holder is axially displaceable within the gun housing and is secured in position ready to weld a bolt by a magnet device located in the housing. The magnet device consists of two parts and one is mounted on the bolt holder and is axially displaceable relative to it. A compression spring drives the bolt holder toward the receiving material when the magnet device is deactivated. When the movement of the bolt holder toward the receiving material is stopped, the magnet part mounted on it continues to move in the direction of the bolt. A spring is provided on the bolt holder and contacts the magnet part mounted on it so that, as the magnet part moves relative to the bolt holder, the spring provides a damping effect on the magnet part.
Abstract translation: 在用于冷凝器排放螺栓焊接的螺栓焊枪中，螺栓保持器在枪壳体内可轴向移动并且被固定就位以通过位于壳体中的磁体装置焊接螺栓。 磁体装置由两部分组成，一个安装在螺栓保持架上并相对于其可轴向移动。 当磁体装置被去激活时，压缩弹簧将驱动螺栓保持器朝接收材料。 当螺栓保持架朝向接收材料的移动停止时，安装在其上的磁体部分继续沿着螺栓的方向移动。 弹簧设置在螺栓保持器上并接触安装在其上的磁体部分，使得当磁体部分相对于螺栓保持器移动时，弹簧对磁体部件提供阻尼作用。
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公开(公告)号：US3757080A
公开(公告)日：1973-09-04
申请号：US3757080D
申请日：1971-12-14
Applicant: HILTI AG
CPC classification number: H01R4/64 , Y10T24/44265 , Y10T24/44598
Abstract: A contact clamp for use in electrical welding is formed of a pair of arms arranged to be clamped to a workpiece. At least one of the arms has a pointed projection or cutting edge formed on its surface which contacts the workpiece for cutting through poorly conductive or non-conductive layers and assuring a satisfactory electrical contact between the clamp and the workpiece. A separate tightening screw can be used, extending through the end surface of one of the arms into contact with the workpiece. The pointed projection or cutting edge can be formed on the end of the tightening screw which contacts the workpiece.
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公开(公告)号：NO135923B
公开(公告)日：1977-03-21
申请号：NO259573
申请日：1973-06-22
Applicant: HILTI AG
Inventor： TAUERN D
Abstract: In the apparatus disclosed a welder produces welds by discharging a capacitor bank through a stud to be welded. Sensing means reactively coupled to the circuit produces signals corresponding to the changes in an electrical condition at the capacitor bank. Threshold means responsive to the sensing means produce an indication when the signal traverses a predetermined magnitude lower than that corresponding to a welding discharge of the capacitor but higher than signals expected from other changes to be expected in the electrical condition. A counter counts the number of indications. Preferably suitable diodes with sensing means suppress signals due to changes in charging currents in the capacitor bank.
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Patent Agency Ranking
公开(公告)号：SE390798B
公开(公告)日：1977-01-24
申请号：SE201172
申请日：1972-02-18
Applicant: HILTI AG
Inventor： TAUERN D , HARDER K M
Abstract: In the apparatus disclosed, a direct current source charges several banks of capacitors. A discharge circuit connects the capacitor banks to the same welding terminals. Charge-circuit decoupling devices, each connected to a separate bank in the charging paths from the source to the bank, decouple the banks from each other. Discharge-circuit decoupling devices, each connected to a bank in the discharge paths of the circuit between the banks and the welding terminals, decouple the banks. The charge-circuit decoupling devices may be composed of separate resistors, diodes, or the like. The discharge-circuit coupling devices are composed of resistors, diodes, thyristors, current switches, or the like.
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公开(公告)号：DK135103C
公开(公告)日：1977-08-08
申请号：DK77472
申请日：1972-02-18
Applicant: HILTI AG
Inventor： TAUERN D
Abstract: In the apparatus disclosed, welding is accomplished by discharging a bank of capacitors through a pair of electrodes. A transformer energizes a rectifier bridge that charges the capacitor bank through a switching arrangement. The primary winding of the transformer is loosely coupled to the secondary winding, at least at higher loads on the secondary side. This eliminates the high current surge at the beginning of each charging cycle and minimizes the required current-carrying capabilities of the rectifier bridge and switching arrangement.
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