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| Number | Title | Issue Date |
| 7968815 | Resistance spot welder and a bearing/spindle arrangement for the resistance spot welder A resistance spot welder including a first plate, a second plate rotatably connected to the first plate through a shaft and driven on the shaft by an actuator, gun arms removably fixed on and electrically insulated with the first and second plates, and electrode tip... | 06/28/2011 |
| 7851723 | Electric spot welding head A spot welding head includes an electrical conductor guided into a tubular sheath whose ends are rigidly connected to rear ends of supporting bodies of several electrodes. The sheath defines a substantially stiff loop portion configured and arranged so as to be subs... | 12/14/2010 |
| 7339114 | Cable, cable connection method and cable welder A connection method for connecting an end of a signal wire (53) of a cable (51) to the connecting face of a contact (59) of a connector (52). The lengthwise direction of the connecting face of the contact (59) and the lengthwise di... | 03/04/2008 |
| 7334489 | Dual rate force transducer A dual rate force transducer is disclosed. A spring is machined to have a first spring portion with a first spring rate, a second spring portion with a second spring rate, and a platen between the spring portions. A pair of flanges are affixed to the distal ends of ... | 02/26/2008 |
| 7309845 | Modular welding equipment Welding equipment that includes a tooling cart for transferring interchangeable tooling modules to a welding machine. A latch is mounted to the welding machine for latching the tooling cart to the welding machine, and a latch is provided for latching the tooling mod... | 12/18/2007 |
| 7304241 | Swivel connector, cable, and assembly An assembly having a connector capable of rotating up to about +/−170 degrees; and a plurality of conductors, sized in the range of gauge 22 to gauge 26. ... | 12/04/2007 |
| 7277294 | Contactor draw out tray An electrical contactor draw out tray has a movable frame and a stationary frame in which the movable frame carries the electrical components for an electrical feeder circuit. The stationary frame is preferably housed within a power distribution center and has input... | 10/02/2007 |
| 7257872 | Electrode tip dresser An electrode tip dresser is disclosed which can dress a pair of electrode tips to a usable state while achieving a desired accuracy of a tip surface of each electrode tip including an angular portion at a peripheral edge of the tip surface, without separating each e... | 08/21/2007 |
| 7250585 | Robotic welding system and method for welding projection weld nuts A system and method for welding projection weld nuts to a work piece. The system and method of the present invention generally makes use of a fixtured work piece having one or more projection weld nuts associated therewith. A resistance welding robot is used to weld... | 07/31/2007 |
| 7173210 | Spot welding gun and a gun accessory A spot welding rod for resistance welding of object comprises a rod which is moveable axially, and two electrode arms provided with electrodes, wherein the electrodes face towards each other and the welding gun is adapted to press together objects to be welded locat... | 02/06/2007 |
| 7170025 | Welding device IMPROVED RESISTANCE WELDING DEVICE that includes a mobile electrode in a support assisted by a spring, gas cylinder or expansion element, allowing its movement on being compressed so that the time lapse for the welding is sufficiently long to be effective, without a... | 01/30/2007 |
| 7163247 | Tool holder Device at tool holder (10) of the kind comprising an essentially C-shaped frame preferably having a long inner range, which frame at its free shank ends carries said tool, for instance a riveting, a glueing or a welding unit. The holder (10) comprises ... | 01/16/2007 |
| 7156795 | Tool change system for a machine A plurality of atomizers or other tools are disposed in a mounting plate (10) in storage places (12), respectively. The mounting plate (10) is rotatable relative a paint robot of a coating installation and has a pneumatic lock or a tool holder (... | 01/02/2007 |
| 7145097 | Method and apparatus for electrical resistance spot welding using electrical servo actuator 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 ... | 12/05/2006 |
| 7141752 | Electric actuator An electric actuator having an in-line rotation shaft, electric motor and encoder in which the encoder shaft, the motor shaft and the rotation shaft is concentric and integrally formed. ... | 11/28/2006 |
| 7126078 | Sub-micron adjustable mount for supporting a component and method An arrangement is provided including an electrode extending to an electrode tip for contacting a workpiece. A welding configuration of the electrode tip is established by exposing the electrode tip to a selected welding environment for use in forming a weld having a... | 10/24/2006 |
| 7112757 | Programmable resistance seam welding apparatus and method A resistance welding apparatus having a pair of programmable ball electrodes carried on universally movable positioners. The positioners are programmed to move the ball electrodes simultaneously along a seam line so that the ball electrodes clamp and support opposit... | 09/26/2006 |
| 7105768 | Fixed type electrode tip take-out device There is provided a fixed type electrode tip take-out device capable of solving the problem of irregularities of positions of upper and lower electrode tips by urging a tip magazine to be movable, and fixing the locations of the electrode tips of each group at the p... | 09/12/2006 |
| 7105767 | Fixed type electrode tip removal device There is provided a fixed type electrode tip removal device capable of reliably removing an electrode tip and realizing full automation of the removal device. The fixed type electrode tip removal device for removing an electrode tip from the shank is made up of a ta... | 09/12/2006 |
| 7075028 | Sub-micron adjustable mount for supporting a component and method Attaching an attachment surface of an electrically conductive workpiece to an electrically conductive support surface is described. In one aspect, a biasing force is distributed at least partially around a weld region of the workpiece to urge the attachment surface ... | 07/11/2006 |
| 7067760 | Welding gun Spot welding gun, having a support, a lower half-gun and an upper half-gun articulated one to the other by a pin, mounted in an oscillating configuration with respect to said support and propping up corresponding welding arms, and a working cylinder including a body... | 06/27/2006 |
| 7028578 | Wrist driving mechanism for robot A wrist driving mechanism capable of arranging a large amount of cables and pipes in a robot arm. A robot wrist mechanism having three degrees of freedom is driven by first, second and third drive shafts for transmitting driving forces of first, second and third mot... | 04/18/2006 |
| 7019250 | Quick change device for mounting an actuator to a resistance welding gun A quick change device has a mounting member for mounting an actuator to a resistance welding gun by headed fasteners. The mounting member has several keyhole type apertures arranged in a circle. The fasteners extend through the narrow portions of the keyhole type ap... | 03/28/2006 |
| 6935550 | Robotic positioner A robotic positioner for use with an automated processing system, such as an automated welding system, for example, includes a base, a support structure rotatably supported on the base, and at least one work surface supported on the support structure suitable for su... | 08/30/2005 |
| 6920371 | Welding system and methodology providing multiplexed cell control interface The present invention provides a welding system and methodology to facilitate communications and control. The system includes a cell controller to control one or more welders over a control network. An interface module associated with the cell controller and the con... | 07/19/2005 |
| 6911616 | Weld gun assembly A weld gun for performing a welding operation on a workpiece includes a pair of opposing arms, at least one arm movable relative to the opposing arm to apply pressure to the workpiece during a welding operation. A pair of identical or mirror image side plates suppor... | 06/28/2005 |
| 6909064 | Pinch weld gun with swivel shunt connection A weld gun including a frame structure, a weld arm mounted on the frame structure, an electrode mounted on the weld arm and including an electrode cap at one end of the electrode, a transformer, and a shunt fixedly secured at one end thereof to another end of the el... | 06/21/2005 |
| 6870121 | Modular welding guns An actuator designed for use with a welding gun of the type having a first electrode movable in a straight line toward and away from a second electrode supported by a welding arm. The actuator includes a housing with a first and second end. A bushing with a generall... | 03/22/2005 |
| 6852941 | Welding robots for spot welding A welding robot for spot welding is disclosed. The welding robot is capable of grinding electrode tips promptly and clearly. The welding robot 1 includes a servo gun 5 provided at a front end of a multi-joint arm 2, in which a pair of electrode ... | 02/08/2005 |
| 6791056 | Projection welding of an aluminum sheet A projection coined onto a metal sheet, preferably an aluminum sheet, for projection welding the sheet to an adjacent metal sheet. The projection has a thickness greater than the thickness of the sheet on which it is formed. The wall of the projection surrounds a fi... | 09/14/2004 |
| 6718837 | Driving unit for pressure application shaft in a welding apparatus A driving unit for a pressure application shaft in a welding apparatus including a housing for housing therein a ball screw mechanism for converting rotation of an output shaft of a motor into reciprocating motion of the pressure application shaft, and a direct acti... | 04/13/2004 |
| 6697701 | Welding system and methodology providing multiplexed cell control interface The present invention provides a welding system and methodology to facilitate communications and control. The system includes a cell controller to control one or more welders over a control network. An interface module associated with the cell controller ... | 02/24/2004 |
| 6653590 | Projection bolt welding device A projection bolt feed unit (14) is mounted on a welding frame (5) which is made to move by a robot system (1), and on either one of two electrodes (6, 7) installed on the welding frame (5) is formed a receiving hole (9) in which to insert a shaft (11). T... | 11/25/2003 |
| 6624378 | Resistance welding A method and apparatus for resistance welding of objects (39) by a spot welding gun which has a C-shaped arm (9), a front electrode (11), a back electrode (13) and a pneumatic cylinder (21). The back electrode is axially moveable a limited distance by the... | 09/23/2003 |
| 6621036 | Programmable pogo welding apparatus and method A pogo welding apparatus especially for spot welding metal sheets at selected locations spaced away from their edges wherein the sheets are held in a temporary assembly with the selected locations engaged and separate programmable positioners move a prima... | 09/16/2003 |
| 6596958 | Modular welding guns A modular welding gun includes a frame and an upper and lower yoke both interconnected with the frame. One of the yokes is movable with respect to the frame. An upper weld arm has one end removably interconnected with the upper yoke and the other end desi... | 07/22/2003 |
| 6570120 | Apparatus for resistance welding 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 c... | 05/27/2003 |
| 6512195 | Modular welding machine A machine is disclosed with interchangeable tooling modules for use in a base operating machine. Disconnectible welding current contactor members connect the tooling module to a power supply/transformer of the base operating machine when the module is ins... | 01/28/2003 |
| 6512194 | Multi-arm weld gun A multiple arm weld includes at least two weld gun arms where one arm retracts away from mating work pieces while at least one other arm remains operational, thus allowing a multiple arm weld gun to act as a single arm weld gun. Once one or more weld gun ... | 01/28/2003 |
| 6462298 | Long life welding electrode and its fixing structure, welding head and welding method The present invention provides a fixing structure for a welding electrode and a welding head which enable improvement of durability of a welding electrode, improvement of work efficiency in welding, and reduction of time required for welding and also whic... | 10/08/2002 |
