98results about "Support devices with shielding" patented technology

The invention discloses a node structure electric arc fuse wire additive manufacturing method, and belongs to the technical field of electric arc additive manufacturing. According to the method, the problems that in the prior art, due to uneven heat distribution, the joint binding force is insufficient, the machining allowance is low, and the welding gun collision risk is caused by too high material accumulation in a joint area are solved; the method comprises the steps that a welding gun deposits a first welding bead along an arcing point, when a second cross welding bead is deposited, a coaxial electromagnetic coil is arranged outside the welding gun, an external alternating magnetic field is generated to act on an electric arc, the electric arc and a molten pool oscillate periodically, and therefore the metal fluidity of the molten pool is enhanced; by applying the external alternating magnetic field, non-contact stirring of the molten pool can be achieved, an additional mechanical movement device is not needed, the molten pool has the advantages of being safe and clean, the fluidity of the molten pool subjected to magnetic arc oscillation stirring is higher, and the problems that materials at nodes excessively accumulate and protrude, and joints of the nodes are heated unevenly and shrink are solved.

A holder for attachment to a welding end assembly for welding system receives a consumable wire electrode. The wire electrode has a non-round cross-sectional shape. The end assembly features a tip having internal bore closely conforming to the cross-sectional shape of the electrode wire. The holder includes a plurality of internal rollers, and the rollers guide and orient the non¬ round wire as it passes through the holder from a wire guide cable and into the end assembly.

A connection structure (10) for a welding torch (1) is configured to connect a handle (2) of the welding torch (1) to a cable (3) for transmitting electrical current. The connection structure (10) comprises a first end (11) configured to engage with the handle (2), a second end (12) configured to engage with the cable (3), and a longitudinal direction (13) extending from the first end (11) to the second end (12). At least the first connection portion (14) of the outer surface (15) of the first end (11) is formed as a sphere or part of a sphere. The first connecting portion (14) is provided with two first fastening members (16) arranged on opposite sides (17) of the first connecting portion (14) with respect to the longitudinal direction (13) and configured to engage in each case with one of two second fastening members (31) arranged on an inner surface (32) of the handle (2), the connecting structure (10) has a first connecting portion (14) and a fastening member (16, 31), such that when the connecting structure (10) is connected to the handle (2) at the first end (11) via the first connecting portion (14) and the fastening member (16, 31), the connecting structure (10) enables the connecting structure (10) to rotate relative to the handle (2) about a bending axis (18) defined by the first fastening member (16).

The present application relates to a rotary torch (10). The rotary torch (10) includes: a hollow cylindrical case (47); a hollow cylindrical body (41) rotatably supported by the case (47) in a radially inward of the case (47); a hollow cylindrical wire guide (29) disposed radially inward of the body (41) in a non-rotatable manner, the wire guide (29) configured to receive a filler wire (4) to pass through; an electrode (43) disposed at a distal end of the body (41), the electrode (43) integrally rotatable with the body (41), the electrode (43) extending toward the filler wire (4); and a power supply brush (55) disposed in the case (47).

An after-shield gas jig (10) is provided with a gas supply unit (20). The gas supply unit (20) includes a discharging unit (21h). An after-shield gas can be blown out from the discharging unit (21h) toward a workpiece (200). The gas supply unit (20) includes a shielding unit (21) and a first maintenance mechanism unit (22). The shielding unit (21) is disposed so as to surround the discharging unit (21h) when viewed from the direction in which the after-shield gas is blown out. The distance between the shielding unit (21) and the workpiece (200) can be kept constant independently of the position of a welding torch (1) by the first maintenance mechanism unit (22).

The present invention provides a welding torch having a thumb rest surface that allows the worker's thumb to be stably placed. [Solution] In this welding torch 1, when the main body 20 is viewed from the side, with one end facing the front and the other end facing the rear, the side on which the thumb rest surface 40 is provided facing the upper side and the side on which the torch switch 30 is provided facing the lower side, a grip 21 is provided on the rear side of the torch switch 30 that is curved upward. The thumb rest surface 40 is located on the front side of the upper surface 22 of the main body 20 and includes an inclined surface that gradually slopes upward toward the front. The front end L2 of the thumb rest surface 40 is located in front of the front switch portion 30S of the torch switch 30, and the rear end L1 of the thumb rest surface 40 is located behind the front switch portion 30S of the torch switch 30.

An example welding torch includes: a handle piece that is electrically and mechanically connected to the torch head on a first end of the handle piece; a power supply connector configured to be coupled to a welding power supply on a first end of the power supply connector, wherein at least one of the handle piece or the power supply connector are a single piece; a welding cable that is electrically and mechanically connected to both a second end of the handle and a second end of the power supply connector; a first cover over the torch head, the handle piece, and a first portion of the welding cable connected to the handle piece; and a second cover over the power supply connector and a second portion of the welding cable connected to the power supply connector.

To provide a welding torch device which can facilitate maintenance of a wire guide for supplying a consumable electrode, and to provide a welding method using the welding torch device.SOLUTION: In a welding torch device 1 including a welding torch body 2 and a wire supply device 10 and a welding method using the welding torch device, the wire supply device 10 includes: a wire guide body 21 fixed to a tip side of the welding torch body 2; a wire guide 31 which is disposed at the outer side of the welding torch body 2 in a first radial direction R1 and supported by the wire guide body 21 in an inclined attitude at which a tip part is located close to a tip of a torch nozzle 4; and a wire guide fixture 15 having a first fixture part 16 fixed to the welding torch body 2, a second fixture part 17 fixed to the wire guide 31, and a rotary shaft 18 connecting the first fixture part with the second fixture part. The second fixture part 17 is rotated around the rotary shaft 18 relative to the first fixture part 16 to move the wire guide 31 close to or apart from the welding torch body 2.SELECTED DRAWING: Figure 2

To provide a welding torch which can regulate rotation of an outer cylindrical body provided on a torch barrel part around the torch barrel part with simple configuration, and a retaining ring.SOLUTION: A welding torch comprises: a torch barrel part to a tip side of which a tip member is attached; a cylindrical fitting body which is inserted through the torch barrel part, and of which axial movement to a tip side is regulated by a regulation part provided on the torch barrel part; an outer cylindrical body which is fastened to the fitting body on an axial tip side with respect to the regulation part, whereby axial movement of which is regulated in a state of being externally packaged in the torch barrel part; and a retaining ring is inserted through the torch barrel part so as to regulate rotation of the outer cylindrical body with respect to the torch barrel part.SELECTED DRAWING: Figure 4

To provide a TIG welding torch comprising a narrowed nozzle, which can improve safety and a welding quality.SOLUTION: A TIG welding torch comprising a narrowed nozzle is provided with a conductive electrode nozzle 1, provided at a tip part of a torch body 7, which stores a narrowed nozzle 2, and an earth cable connection terminal 3 electrically connected to the electrode nozzle 1. The electrode nozzle 1 comprises a cylindrical nozzle body 1A and a beam nozzle 1B detachably attached to the nozzle body 1A. The beam nozzle 1B comprises a conical tapered part 1d having a nozzle hole 1c at a tip thereof, and a cylindrical part 1f connected to a rear end of the tapered part 1d and having a screw part that is screwed to the nozzle body 1A. The tapered part 1d has a tip edge 1g whose base material can be contacted with the whole circumference of the nozzle hole 1c and also has a first gas exhaust hole 1h on a conical peripheral side surface thereof. The nozzle body 1A has a second gas exhaust hole 1b on a cylindrical peripheral side surface thereof.SELECTED DRAWING: Figure 5

A torch assembly for additive manufacturing is described. The torch assembly can apply at least two arcs surrounding a feed wire during an additive manufacturing process. The additional arc provides better shielding functions during the process.

A rotary torch includes: a hollow cylindrical case; a hollow cylindrical body rotatably supported by the case in a radially inward of the case; a hollow cylindrical wire guide disposed radially inward of the body in a non-rotatable manner, the wire guide configured to receive a filler wire to pass through; an electrode disposed at a distal end of the body, the electrode integrally rotatable with the body, the electrode extending toward the filler wire; and a power supply brush disposed in the case.

The invention relates to a method and a welding torch for gas tungsten arc welding, wherein an electric arc burns between a non-consumable electrode (110) and a workpiece (151). The interior of the electrode (110) has a cavity (200) through which an electrically conducting filler (210) is fed in the direction (230a) of the workpiece (151), said filler (210) being energized.

A nozzle assembly for a welding torch is disclosed. The nozzle assembly comprises a nozzle, a contact tip, and a gas diffuser assembly. The gas diffuser assembly comprises a gas diffuser, coupled to an insulator. The gas diffuser is also coupled to a gooseneck and the contact tip. The nozzle is coupled to the gas diffuser assembly, such that the contact tip is retained within the nozzle. The nozzle and gas diffuser assembly further include complementary engagement features to couple the nozzle to the gas diffuser assembly. The nozzle also includes a spatter deflector configured to deflect or block spatter from obstructing gas holes of the gas diffuser assembly.

The present application relates to a welding fume torch (200), which include: a handle (202) having a grip section (212), a neck (206) extending from a forward end of the handle (202), a fume collection nozzle (208) in fluid communication with an interior of the handle (202), and a fume hose in fluid communication with the fume collection nozzle (208) via the interior of the handle (202), the handle (202) including a fume channel having a larger flow area than the grip section (212), having at least one dimension that is larger than a same dimension of at least one section of the handle (202) forward of the fume channel (408a), and configured to reduce flow resistance for fume between the fume collection nozzle (208) and the fume hose, at least part of the fume channel being forward of the grip section (212).

To efficiently perform sound welding by suppressing weld defects while suppressing a welding amount and preventing the occurrence of high temperature cracks in flat position welding.SOLUTION: In a narrow groove 50 of horizontal welding, a lower groove angle θ on a lower plate 5A side is set to 35 ° to 45 ° upward from the horizontal, and an upper groove angle α is set to be larger than the lower groove angle θ in a range of 2 ° to 5 °. In the inclined narrow groove welding method, a root gap RG of a narrow groove 50 is set in a range of 9 mm-12 mm, a backing metal 6 is provided which is attached to a lower plate 5A and an upper plate 5B and positions a groove surface lower end part 5A of the upper plate 5B and sets a groove angle and the root gap RG, a contact tip having a wire hole for feeding a weld wire into the narrow groove 50 is inserted, and the lower plate 5A and the upper plate 5B are welded without rotating the contact tip around a nozzle shaft in one pass in the narrow groove 50.SELECTED DRAWING: Figure 3

An example rotating power adapter configured to provide electrical current to a welding-type tool and comprising: a casing comprising a first end and a second end; and a rotating component within the casing, wherein the rotating component comprises a first interface at the first end of the casing and a second interface at the second end of the casing and is configured to receive a first connection at the first interface and a second connection at the second interface, wherein the first connection is a welding component connection or a first welding cable connection, the second connection is a welding-type tool connection or a second welding cable connection, wherein one or more of the first interface or the second interface are configured to rotate with the rotating component, and wherein the rotating component provides a path for the electrical current from a welding component to the welding-type tool.

In certain embodiments, a welding contact tip includes a first axial end portion having a welding wire outlet of an internal bore of the welding contact tip. The welding contact tip also includes a threaded middle portion adjacent the first axial end portion. The threaded middle portion includes external threads configured to mate with internal threads of a gas diffuser of a welding torch. The first axial end portion includes a tapered outer surface adjacent the threaded middle portion. The welding contact tip further includes a second axial end portion adjacent the threaded middle portion. In other embodiments, a welding torch liner assembly includes a liner stop configured to be attached to a first axial end of a welding torch liner. The welding torch liner assembly also includes a liner receiver configured to secure a second axial end of the welding torch liner. The second axial end of the welding torch liner is opposite the first axial end of the welding torch liner.

To provide a TIG welding torch that is able to adjust the direction of a gas rectifying groove relative to a torch body, even in a state in which a narrowed nozzle is attached to the torch body.SOLUTION: The TIG welding torch 1 includes a torch body 2, a tungsten electrode rod 3, a gas lens 6, a shield nozzle 7, and a narrowed nozzle 8. The narrowed nozzle 8 has: two positioning protrusions 8c, 8c oppositely disposed on an inner peripheral surface of the nozzle body 8b; and two gas rectifying grooves 8d, 8d alternated with the two positioning protrusions 8c, 8c in a circumferential direction of the nozzle body 8b. The TIG welding torch 1 further includes a phase adjustment mechanism 9 capable of adjusting a phase of the narrowed nozzle 8 relative to the torch body 2 while the narrowed nozzle 8 is kept held at a predetermined axial position relative to the torch body 2.SELECTED DRAWING: Figure 1

The invention relates to a combined extraction / shielding gas nozzle of an arc welding torch with a non-consumable electrode, such as a TIG or plasma torch, comprising a shielding gas channel for supplying shielding gas to the welding process, and an extraction device, connected integrally to the shielding gas channel, for extracting the flue gas produced during the welding process. The invention also relates to a torch body comprising a combined extraction / shielding gas nozzle.

The method for manufacturing a metal laminate structure is a method for manufacturing a metal additive manufacturing body by depositing metal on a workpiece, and includes the steps of: supplying a laser beam (3) and a center shield gas (6) from a processing head (13); spraying an outer shield gas (10) containing a gas species with a molecular weight smaller than that of the center shield gas (6) from an outer shield gas nozzle (11) provided around the processing head (13) while the laser beam (3) and the center shield gas (6) are being supplied; and supplying a wire (1) from the wire supply mechanism (16) to a processing point (5) while operating the wire supply mechanism (16) while the laser beam (3) and the center shield gas (6) are being supplied.

To efficiently execute exchange and polishing of an electrode.SOLUTION: An electrode exchange device 1000 includes a moving device 10 capable of moving an electrode 5 to a plurality of positions, a polishing device 2 for polishing the electrode, and a control device 100. The control device 100 moves the used electrode 5 removed from a weld torch 4 at a position P1 to a position P2 using the moving device 10, polishes the used electrode 5 at the second position using the polishing device 2, moves the polished electrode 5 polished by the polishing device 2 from the position P2 to a position P3 using the moving device 10, and inserts the polished electrode 5 into the weld torch 4 at the position P3.SELECTED DRAWING: Figure 4

A handle (10) for a welding torch arrangement (1) is configured to be provided around at least one of a neck (2) of a welding torch (7) or a cable (3), which cable (3) is fixedly attached to the neck (2). The handle (10) comprises at least one control wire (11) for transmitting control signals. The control wire (11) is configured to be fixedly mounted to the cable (3) at a first point (14) of the control wire (11). The handle (10) further comprises at least one switch (12) connected fixedly to a distal end (15) of the control wire (11) and at least one activation button (13) arranged to affect, when activated, to the switch (12) to generate a control signal. The control wire (11) is arranged to extend inside the handle (10) at least between the first point (14) and the distal end (15). The handle (10) is configured to attach to the neck (2) and / or the cable (3) in a movable manner.

A welding torch extension cable, which includes a female power supply connector for a welding cable connector on a first end of the female power supply connector; a male power supply connector for a welding power supply on a first end of the male power supply connector; a welding cable that is electrically and mechanically connected to both a second end of the female power supply connector and a second end of the male power supply connector; a first cover over the female power supply connector and a first portion of the welding cable connected to the female power supply connector, wherein the first and second ends of the female power supply connector are a single piece; and a second cover over the male power supply connector and a second portion of the welding cable connected to the male power supply connector, wherein the first and second ends of the male power supply connector are a single piece.

Some examples of the present disclosure relate to tracking attachments (200) that allow trackable markers (299) to be easily attached to TIG welding torches (100), thereby removing the need for costly customized / modified TIG welding torches. In some examples, each tracking attachment (200) includes one or more trackable markers (299) that can be detected and / or tracked by a monitoring system (450). In some examples, the trackable marker(s) (299) of the tracking attachment (200) facilitate tracking and / or monitoring of welding technique by aiding in the tracking / monitoring of the position(s) and / or orientation(s) of the TIG welding torch (100) during welding-type operations.

The present invention relates to a method and apparatus (1) for welding a workpiece (W) in a protective gas chamber (2), comprising a protective gas chamber (2) having a line (3) for introducing a protective gas (G) and a welding torch (4) for carrying out a welding process while supplying a fusible welding wire (5), the welding torch (4) having a gas flow path (6) for supplying the protective gas (G).To prevent the accumulation of metal dust generated during the welding process and achieve the best possible weld quality, and to reduce the risk of fire or explosion due to unoxidized dust, the present invention proposes that the welding torch (4) is designed to draw the protective gas chamber atmosphere (L) from the weld point (S) through the gas flow path (6) by at least temporarily reversing the flow direction in the gas flow path (6) at least during the welding process.

Systems, methods, and apparatus to preheat weld wire are disclosed. An example contact tip includes: an inner bore configured to conduct current to a consumable welding electrode; screw threads on an exterior of the contact tip; and a head opposite the screw threads on an exterior of the contact tip to enable threading and dethreading of the contact tip.

A jacketed consumable for a liquid cooled plasma arc torch is provided. The jacketed consumable includes an electrode, a swirl ring fixedly attached to and disposed circumferentially about a distal end of the electrode, and a nozzle fixedly attached to the swirl ring, the nozzle disposed circumferentially about the distal end of the electrode with a portion of the swirl ring positioned between the electrode and the nozzle. The consumable further includes a consumable jacket fixedly attached to and disposed circumferentially about a distal end of the nozzle and a shroud fixedly attached to and disposed circumferentially about a distal end of the consumable jacket. A proximal end of the consumable jacket is adapted to (i) extend axially past a proximal end of the shroud and (ii) extend radially beyond a radial extent of the shroud.

The invention relates to a method for contactless ignition of an electric arc (1) between an electrode (2) of a welding head (3) and a material surface (4) of a workpiece (5) and a welding device (6). A first ignition voltage pulse having a first polarity or a second polarity is generated between the electrode (2) and the material surface (4). The electric arc (1) is maintained after ignition of the electric arc in the second polarity or in an alternating polarity. In the event of ignition failure, a sequence of ignition voltage pulses is generated according to a sequence scheme until the electric arc (1) is successfully ignited after the first ignition voltage pulse, wherein the sequence scheme comprises ignition voltage pulses having the first polarity and ignition voltage pulses having the second polarity, and an ignition pause is provided between the ignition voltage pulses having the first polarity and the ignition voltage pulses having the second polarity.