Abstract: A contact device for a welding apparatus is disclosed. The contact device for feeding current to at least a first welding wire and a second welding wire. The contact device including first and second contact jaws. The first and second contact jaws including a slot formed therein to provide the first and second contact jaws with improved flexibility to individually and independently flex about the first and second welding wires to ensure proper contact is maintained between the contact jaws and the welding wire.

Abstract: A welding system includes a welder configured to output welding power to generate an arc between a welding electrode and a workpiece. The welding system also includes a power pin configured to be coupled to the welder in a first orientation or a second orientation. The power pin is configured to switch the welding power from a first polarity to a second polarity when the power pin is switched from being coupled to the welder in the first orientation to being coupled to the welder in the second orientation.

Abstract: A universal rod-to-tube adapter for mounting a rod in a tube holder, wherein the rod-to-tube adapter snugs and rotationally aligns the rod and eliminates rattle and vibration. The rod-to-tube adapter includes both a column centering collar formed as a truncated cone with a central aperture formed therethrough between its base and apex thereof and has resiliently compressible side walls, and a base centering collar formed as a cup with a cross-wise slot is formed in a base thereof, and a plurality of resiliently collapsible semi-rigid centering members extending therefrom adjacent to the base.

Abstract: The invention described herein generally pertains to locking mechanisms for levers operable to mount a tractor unit to a guide track and to engage a drive gear of the tractor unit to a track gear of the guide track. The levers for mounting the tractor unit and/or to engage the drive gear are lockable in a closed position. The closed position relates to a state of the levers when the tractor unit is mounted on the guide track or when the drive gear is engaged with the track gear. The levers can be easily operable to mount/dismount or engage/disengage, respectively.

Abstract: A welding torch, in particular a handheld welding torch, for a melting welding wire, which is guided in a wire core arranged within a protective hose, fastens the protective hose and the welding core within a torch housing of the welding torch independently from one another. For minimizing stresses on the welding torch by the hose package, the protective hose is fastened rotatably and pivotably and the wire core is fastened rotatably to the torch housing.

Abstract: Device for managing the electrodes for electrical discharge machining EDM machine tools comprises at least one magazine (1) that has a series of individual housings (33) designed to accept and hold exchangeable elements (5) consisting of electrodes (6, 22) mounted on an electrode holder (11a, 11b), and a changer device (2) equipped with a gripper (2) intended to move the exchangeable elements (5) from the individual housings (33) towards the machine and vice versa. A first adapter piece (21) is associated with each of the exchangeable elements (5). This adapter piece (21) surrounds the electrode holder (11a, 11b) and is gripped around its periphery by the gripper (9) of the changer (2) so as to guarantee that the exchangeable element (5) is held precisely. The device further comprises a second adapter piece (32) associated with each of the individual housings (33) of the magazine (1) that are likely to be used.

Abstract: A welding torch with a welding electrode and a welding electrode holder is provided. One welding torch includes a securing mechanism and an insulated grip. The securing mechanism is configured to secure an exposed central portion of a welding rod bounded by flux covered first and second sides. The securing mechanism is also configured to make electrical contact with the central portion of the rod for arc welding with the first side. The insulated grip is configured to cover the second side of the welding rod.

Abstract: A torch head in a welding system for applying a weld to a workpiece, the torch head including a torch head body having a first side, a second side, an inward side and a outer side, the torch head body further including a lower surface and a top surface forming a solid; the torch body defining a slot extending from the lower surface to the top surface on the first side; an electrode assembly including an electrode mounted on the torch body, the electrode extending downward relative to the lower surface of the torch body; a wire adjustment assembly including a bracket supporting a wire guide that receives a wire from a wire supply; the bracket being attached to a rack and pinion supported within the slot, the rack being located inward of the pinion and slideable within the slot, the pinion being rotatable within the slot, and engaged with the rack to move the bracket vertically upon rotation of the pinion to adjust the vertical position of the wire.

Abstract: A welding tool includes a first handle and a second handle. The welding tool also includes a torch nozzle holder configured to hold a nozzle of a welding torch therein, and to block the nozzle from extending therethrough. The welding tool includes a blade assembly positioned a predetermined distance from the torch nozzle holder. The blade assembly is configured to cut welding wire extending through the blade assembly to calibrate wire stickout from the welding torch to the predetermined distance.

Abstract: A system includes a welding power supply. The welding power supply includes circuitry configured to produce power for a welding operation. The welding power supply also includes a compartment interior to the welding power supply and configured to hold one or more welding electrodes. In addition, the welding power supply may include a covering configured to be removably disposed in an opening of the compartment to allow access to the welding electrodes in the compartment.

Abstract: [Problem] To provide a torch adjustment apparatus that improves anti-heat measures while making it easy to set the angle of the torch. [Solution] Provided is a torch adjustment apparatus for adjusting the position of a torch in relation to the material to be processed. The apparatus has the following: a torch holder (27) that supports the torch so that the torch is detachable; a torch angle adjustment unit that adjusts the angle of the torch holder in relation to the material to be processed; and a torch in and out adjustment unit that adjusts the in and out position of the torch holder by moving the holder on a plane parallel to the material to be processed in a direction perpendicular to the traveling direction of the carriage (B). The torch holder is formed in a channel shape comprising a pair of flanges (27a and 27b) and a connecting piece (27c) that connects the pair of flanges.

Abstract: A welding head is provided. The welding head includes a bracket. The bracket includes a central block coupled to it. The central block includes a tip holder detachably coupled to a lower portion of the central block and a plurality of contact tips attached to the tip holder. Each contact tip is adapted to receive an electrode. The bracket also includes a pair of side blocks pivotally coupled to the bracket and provided on either sides of the central block. Each side block includes a side tip holder detachably coupled to a lower portion of the side block and a side contact tip attached to the side tip holder. Each of the side contact tip is adapted to receive the electrode. The side blocks are capable of variable positioning relative to the bracket.

Abstract: One embodiment of a welding rod expander assembly is useful for expanding a welding rod to a remote location. The welding rod expander assembly may include a first attachment member, a second attachment member, at least one elongated member and a welding rod holder. The second attachment member may be pivotally carried by the first attachment member. Further the at least one elongated member may have an external threaded end portion and a connecting end portion. The welding rod holder may be carried by the second attachment member. The welding rod holder may include a holding unit carried by the second internal threaded portion. The holding unit may be capable of receiving the welding rod. The welding rod holder may further include a clamping unit disposed on the second internal threaded portion. Further, the welding rod secured in the holding unit may be capable of expanding to the remote location.

Abstract: An electrode holder is provided for use in stick welding. The electrode holder comprises a handle, and an electrode gripping mechanism fitted to the first opposite end of the handle. The electrode gripping mechanism comprises upper and lower jaw members. The upper jaw member extends above the handle for a distance from one end of the handle. In one non-limiting embodiment a handle switch is located on the handle and below the upper jaw member. The handle switch is in operable communication with a power shutoff located between the electrode holder and a power supply. The location of the handle switch obviates the need for conscious effort on the part of a user to electrically isolate the electrode holder when changing an electrode.

Abstract: A compressible end-fitting for a welding gun liner includes a tubular body. A head is disposed at an end of the tubular body. The head is wider in diameter than the tubular body. A sleeve is disposed around the end portion of the tubular body that includes the head. The sleeve includes a stepped inner surface defining a shoulder. At least one biasing member is disposed between the head and the shoulder. The biasing member(s) urges the head outwardly away from the sleeve. An annular stop on an outer surface of the tubular body is contactable with an edge of the sleeve to limit movement of the head relative to the sleeve. The head is linearly retractable from a resting position into the sleeve by application of an axial force, and the biasing member(s) returns the head to the resting position when the axial force is removed.

Abstract: In a multi-electrode welding torch, electrodes (2) are configured into a shape that has an arc-shaped curved surface area (R) in at least a portion of a cross-section thereof that is orthogonal to the longitudinal direction thereof. Collets (4) are each provided with a groove portion (4a) in which an electrode (2) is fitted, and whose inner wall surfaces (4b) come into contact in a plurality of locations with the curved surface area (R) when viewed in the longitudinal direction of the electrode (2).

Abstract: A wire feeder has a motor, mounting plate, intermediate mounting plate, and base assembly. The mounting plate has a plurality of mounting hole patterns and a shaft hole. The motor a mounting hole pattern that aligns with at least one of the plurality. One of a plurality of motor types can be mounted to the mounting plate. The mounting plate is mounted to the intermediate mounting plate, which is mounted to the base assembly. The base assembly includes a drive gear, which is connected to rotate with an insulating cap that receives a gear hub. The gear hub is connected to rotate with the motor shaft via matching keys. The insulating hub, intermediate mounting plate and mounting plate are electrically insulating, so that the base assembly is electrically isolated from the motor.

Abstract: A wire feeder has a motor, mounting plate, intermediate mounting plate, and base assembly. The mounting plate has a plurality of mounting hole patterns and a shaft hole. The motor a mounting hole pattern that aligns with at least one of the plurality. One of a plurality of motor types can be mounted to the mounting plate. The mounting plate is mounted to the intermediate mounting plate, which is mounted to the base assembly. The base assembly includes a drive gear, which is connected to rotate with an insulating cap that receives a gear hub. The gear hub is connected to rotate with the motor shaft via matching keys. The insulating hub, intermediate mounting plate and mounting plate are electrically insulating, so that the base assembly is electrically isolated from the motor.

Abstract: The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core, in which the sheath includes less than approximately 0.06% carbon by weight. The core includes a carbon source and a potassium source that together comprise less than 10% of the core by weight.

Abstract: A device for connecting welding wires for CO2 gas welding includes a base frame, first and second electrode plates that are disposed apart from each other on the base frame and including disposing grooves to which an old wire and a new wire are respectively disposed, and clampers that are disposed to each electrode plate and that clamp the used wire and the new wire disposed to the disposing grooves, respectively.

Abstract: A liner for guiding wire, in particular welding wire, is formed from at least two different types of bodies arranged successively so as to form the liner. Each of the bodies carries a set of rolling elements.

Abstract: A system for and a method of controlling filler wire is provided. The system includes a high intensity energy source configured to heat at least one workpiece to create a molten puddle on a surface of the at least one workpiece. A filler wire feeder is configured to feed a filler wire into said molten puddle, and a travel direction controller is configured to advance the high intensity energy source and the filler wire in a travel direction to deposit the filler wire on the at least one workpiece. The system also includes a filler wire controller configured to move the filler wire in at least a first direction during the feeding and advancing of the filler wire. At least the first direction is controlled to obtain a desired shape, profile, height, size, or an admixture of a bead formed by the molten puddle.

Abstract: A device for connecting welding wires for CO2 gas welding includes a base frame, first and second electrode plates that are disposed apart from each other on the base frame and including disposing grooves to which an old wire and a new wire are respectively disposed, and clampers that are disposed to each electrode plate and that clamp the used wire and the new wire disposed to the disposing grooves, respectively.

Abstract: The invention relates to a welding head (1) comprising a heat-resistant electrode (2) for carrying out TIG welding operations on workpieces, in which the electrode (2) is movably mounted and can also be caused to move by a device (20). The electrode (2) preferably carries out either a rotating movement about the axis (A) thereof or an oscillating movement about said axis. During a preferably manual welding operation, undesired alloying-up is thus excluded during accidental contact between the electrode (2) and the workpiece to be welded. Moreover, repeated adhesion of liquefied welding filler material to the electrode (2) can be substantially prevented in the event that a welding filler material is supplied. With welding heads () which are cooled by means of a fluid circuit, said circuit, in cooperation with a turbine, can also be used to drive a rotating electrode (2).

Abstract: Techniques, systems, and devices are described for a weld head that includes an adjustable clamping mechanism with a quick release insert. In one aspect, a weld head having an adjustable clamping mechanism for clamping a welding work piece includes a weld head containment structure having an opening that receives a welding work piece, a clamping member located inside the opening of the weld head containment structure and including a pivot joint for clamping the welding work piece to the weld head, a handle member connected to the clamping member at the pivot joint to rotate the clamping member when the handle member is moved, and an actuator coupled to the clamping member to enable the clamping member to pivot on the pivot joint to different clamping positions for clamping welding work pieces of different sizes.

Abstract: A welding head is provided. The welding head includes a bracket and a plurality of blocks coupled to the bracket. Each of the plurality of blocks has a contact tip. The contact tips are adapted to receive an electrode. Further, at least one of the plurality of blocks is capable of variable positioning relative to the bracket.

Abstract: A shock sensor unit includes first and second sensor shafts having bulging portions, first and second positioning pins in contact with the bulging portions, first and second spring members that press the first and second sensor shafts, first and second sensor bodies that contain the first and second positioning pins movably, and first and second detectors that detect movements of first and second spring guides. Each of the first and second positioning pins is located at two positions that are point-symmetrical with respect to a center point between first and second electrodes.

Abstract: The invention relates to a contact tube (29) for a welding torch (10), having a longitudinal axis (31) along which a through-opening (30) for guiding a welding wire (13) from an inlet region (37) to an outlet region (35) and from an outlet opening (39) towards a workpiece (16) is provided, wherein at least one slot (34) is provided in the outlet region (35) for making contact with the welding wire (13). A contact tube (29) with improved contacting of the welding wire (13) is obtained by providing at least one further slot (36) in the inlet region (37) of the contact tube (29), wherein the slot (36) in the inlet region (37) is arranged in line with the slot (34) in the outlet region (35), and a web (38), which serves as a pivot point, is formed between the slot (34) in the outlet region (35) and the at least one slot (36) in the inlet region (37).

Abstract: A universal conduit assembly for a welding torch is provided that includes a conduit liner defining a proximal end portion and a distal end portion, a conduit tip secured to the proximal end portion of the conduit liner, and an interchangeable conduit stop removably secured to the conduit tip. The interchangeable conduit stop is adapted for connection to a specific OEM (Original Equipment Manufacturer) power connector.

Abstract: A mounting mechanism for connecting a tractor unit to a guide track, the mounting mechanism includes a fixed block having a first set of rolling devices and a movable plate having a second set of rolling devices. The distance between the first and second sets of rolling devices is adjustable by moving the movable plate to engage or disengage the tractor unit to the guide track. A clamping assembly is provided with a shaft, cam spring, and cam handle for adjusting the distance between the first and second rolling devices. When the cam handle is in an open position, the distance between the rolling devices is greater than the width of the guide track and when the cam handle is in a closed position the distance between the rolling devices is approximately equal to the width of the guide track.

Abstract: A torch for connection to an electric arc welding system having a wire feeder, a power source and a weld process controller for the power source. The torch being connected to the front end of a welding gun, which gun has a rear end with a first unique component of a connector. The welding system has a second component of the connector matching the first component. The gun has a communication channel extending from the torch to the first component for transmitting data to the welding system through the connector. The torch has a memory with an identification code outputted on the communication channel to the first component and the system has a decoder circuit connected to the second component and responsive to a selected identification code.

Abstract: An arc welding apparatus comprising a conductor tube defining an internal passageway is disclosed. The conductor tube further defines an external surface profile and a distal end portion. The conductor tube is configured to engage a sleeve having inner and outer surface profiles. The inner surface profile is configured to abut the external surface profile of the conductor tube, and the outer surface profile comprises an engaging portion.

Abstract: Disclosed is an electrode holder to be used in welding that has a closed-end structure that removes the gripping problems inherent with open-jawed “tong-type” electrode holders. The electrode holder contains a grooved hole that allows tighter clamping onto an electrode, easing the process of bending an electrode by hand. The electrode holder also has a comfortable handle covered by a sleeve that keeps the electrode holder cool to the touch, allowing a welding lead to be fed through the sleeve and connected to the electrode holder without removing the handle of the electrode holder.

Abstract: An insulated electrode cover for a welding electrode holder is provided that can reduce or eliminate inadvertent electrical arcing between the electrode holder and adjacent objects. The insulated electrode cover comprises a cap configured to couple to the welding electrode holder. The cap is positioned on the welding electrode holder to overlie selective portions of the jaws of the welding electrode holder so that, when a welding rod is clamped in the jaws of the electrode holder and the electrode is energized, no electrically conductive portion on the exterior surfaces of the jaws is exposed. This can greatly increase the safety of the welding electrode by reducing or eliminating inadvertent shocks and/or fires that can be created by conventional welding electrode holders.

Abstract: The welding contact tips presented herein include contoured inner bores that include a front inner bore section and a back inner bore section. In certain embodiments, the front inner bore section is approximately 0.3-0.6 inches long and includes an inner wall having a substantially constant inner diameter. The back inner bore section is configured to conform to the specific welding wire used with the welding contact tip. In particular, the back inner bore section includes an inner wall having an inner diameter that is substantially larger at an axial end of the welding contact tip than at an axial transition location where the front and back inner bore sections abut. As such, the welding contact area between the welding contact tip and the welding wire is enhanced in the front inner bore section, especially when the welding wire twists inside the contact tip and the welding torch.

Abstract: A welder includes a housing enclosing one or more welding circuits communicated with power output studs for establishing a welding arc. A generally rigid bracket may be included that is affixed to an exterior of the housing, which may include first and second spaced apart support arms extending from a bracket, where the first support arm includes a first supporting surface facing a first direction, and where the second support arm includes a second supporting surface facing a second opposite direction for supporting the associated welding gun in a cantilevered configuration. A cable cradle is also included that extends from a second, distal end of the bracket.

Abstract: A welding wire guiding liner has a plurality of guiding bodies connected to each other, each of the guiding bodies containing a plurality of rolling elements defining a guiding channel for the welding wire. Each guiding body has a ring which is coaxial with the guiding channel and is freely rotatable in a peripheral direction on the body. The ring is connected to the adjacent guiding body by means of a swivel joint which allows the adjacent guiding body to swivel around a swivel axis with respect to the guiding body provided with the ring.

Abstract: A self-adjusting liner assembly for a welding torch includes an elongated tubular main body having forward and rearward ends. An elongated tubular retainer including a shoulder is mountable in the main body. An elongated tubular piston including a shoulder cooperates with the retainer in a telescoping relationship in the main body. A resilient member is disposed in the main body and envelops a portion of the retainer and the piston. The resilient member urges the shoulders away from each other and the tubular piston toward the forward end of the main body.

Abstract: A consumable is configured to operate in a robotic welding torch. The robotic welding torch includes a torch body and a tube. The tube has an elongated body extending from a supply end to a discharge end. The tube is operably connected substantially at the supply end to the torch body. The tube is configured to operably connect at the discharge end to a first set of consumables in a first configuration and to a second set of consumables in a second configuration. The first set of consumables has a first amperage capacity and the second set of consumables has a second amperage capacity substantially larger than the first amperage capacity. The tool center point of the robotic welding torch is substantially constant between the first configuration and the second configuration.

Abstract: A band for protecting electrodes of a spot-welding gun for welding metal sheets includes a carrier material. At least one electrically conductive layer is provided on the side facing the metal sheets. At least two layers are provided on the metal-sheet side of the carrier material in order to create such a band when welding aluminum and/or aluminum alloys, via which the contrast of the imprint of the welding spot can be increased and the electrode can be protected optimally. The outermost layer is made of tin and the layer arranged therebelow is made of nickel-phosphorous. Furthermore, on the carrier material, at least one adhesive layer may be provided for the layers superimposed.

Abstract: There is disclosed an ergonomic protective shell for protecting handheld tools. The ergonomic protective shell and method disclosed herein is particularly suited for protecting handheld welding tools in cold weather. In a preferred embodiment, the protective shell comprises a substantially elongate tool handle shell for receiving a handle region of a handheld welding tool. A protective head shell may also cover a head portion of the handheld welding tool, providing a custom shaped head shell piece fitting the contours of the head portion of the handheld welding tool. The protective shell may be made of a material which may remain resilient and flexible in cold, is heat resistant, or is otherwise reinforced to absorb impacts in cold weather without breakage.

Abstract: A contact fitting for a welding apparatus includes a housing, and first contact device, a second contact device, and a third contact device arranged between the first and second contact devices. The third contact device is movable relative to the first and second contact devices. The first contact device has an elongated form, is fixedly arranged in the housing, and extends from a first end, which is arranged between first and second ends of the housing, to a second end. The second contact device has an elongated form, is suspended spring-loaded to the housing, and extends from a first end, which is arranged between the first and second ends of the housing, to a second end.

Abstract: The high efficiency welding device has two pairs of clamps mounted in two pairs of sliders movable in a reciprocating movement relative to one another. One pair of sliders is mounted at 0 and 180 degree positions around the circumferential surface of a support block and the other pair of sliders is mounted at 90 and 270 degree positions. Each pair of clamps is in the close condition while moving forward in the reciprocating movement to clamp onto selected air gaps of the welding electrode to advance the electrode towards the work piece as well as delivering the welding current to the welding operation, and it is in the open condition releasing the grasp of the welding electrode while moving backward.

Abstract: A system and method for performing a welding-type process includes a welding-type torch having a first electrode connected to receive a welding-type power to effectuate a welding-type process. The welding-type torch also includes a second electrode connected to receive a starting power to initiate the welding-type process and a nozzle surrounding at least a portion of the first electrode.

Abstract: A device for connecting welding wires for CO2 gas welding includes a base frame, first and second electrode plates that are disposed apart from each other on the base frame and including disposing grooves to which an old wire and a new wire are respectively disposed, and clampers that are disposed to each electrode plate and that clamp the used wire and the new wire disposed to the disposing grooves, respectively.

Abstract: A consumable is configured to operate in a robotic welding torch. The robotic welding torch includes a torch body and a tube. The tube has an elongated body extending from a supply end to a discharge end. The tube is operably connected substantially at the supply end to the torch body. The tube is configured to operably connect at the discharge end to a first set of consumables in a first configuration and to a second set of consumables in a second configuration. The first set of consumables has a first amperage capacity and the second set of consumables has a second amperage capacity substantially larger than the first amperage capacity. The tool center point of the robotic welding torch is substantially constant between the first configuration and the second configuration.

Abstract: The high efficiency welding device has two pairs of clamps mounted in two pairs of sliders movable in a reciprocating movement relative to one another. One pair of sliders is mounted at 0 and 180 degree positions around the circumferential surface of a support block and the other pair of sliders is mounted at 90 and 270 degree positions. Each pair of clamps is in the close condition while moving forward in the reciprocating movement to clamp onto selected air gaps of the welding electrode to advance the electrode towards the work piece as well as delivering the welding current to the welding operation, and it is in the open condition releasing the grasp of the welding electrode while moving backward.

Abstract: A graphite electrode and a holder for the electrode for use in a metal disintegrator, the electrode having a hollow columnar body with a skirt wall open at one end, the skirt wall having a plurality of holes extending between one end and an opposite end, the holes being adapted to conduct liquid coolant from said opposite end to said open end, the holder being proportioned to engage and support the electrode at its opposite end when the electrode is installed on a metal disintegrator, the electrode and holder being constructed and arranged to vent a portion of the volume of said liquid coolant through a space between a part being disintegrated and an interior surface of the skirt wall.

Abstract: The invention relates to a robot holder for fixing a fluid-cooled joining tool (6) rotatably about a longitudinal axis (L) on a robot arm (2) of a joining robot with a stator (3) that can be fixed on the robot arm (2) and a rotor (4), which comprises a connection for the joining tool (6) and can be rotated about the stator (3), wherein a feed-through (13) for a joining medium, particularly a welding or soldering wire, runs inside the robot holder through the stator and the rotor. For the even more flexible use of such automated joining tools operating with a joining medium on robots, it is desirable to enable for a rotation of the joining tool that is less limited in the angular range, preferably by a range of at least 360° and even more up to rotatability that is delimited by robot parameters but otherwise free, and to create an accordingly adapted passage for cooling fluid.

Abstract: A hand held electrode holder has a power on/off switch on the handle of the electrode holder and a trigger to open the clamping jaws that clamp the electrode. The holder has internal parts which operate such that the trigger cannot open the clamping jaws while the switch is in the power on position thereby reducing the possibility of an electric hazard when changing electrodes.