265results about "Support devices with shielding" patented technology

The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.

An example welding-type system includes: a welding-type power source configured to provide welding-type current to a welding-type circuit, the welding-type circuit comprising a welding-type electrode and a first contact tip of a welding torch; an electrode preheating circuit configured to provide preheating current through a first portion of the welding-type electrode via a second contact tip of the welding torch; a switching circuit configured to control a current flow between the welding-type power source and the first contact tip; and a preheat control circuit configured to control the switching circuit to: selectively direct current from the welding-type power source to the second contact tip; and selectively divert current from the electrode preheating circuit to the first contact tip.

The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.

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.

To stably maintain a weld state even if a temperature of a base material rises when the base material is aluminum or an alloy thereof in a double shield TIG welding method.SOLUTION: In a double shield TIG welding method that uses a welding torch comprising an inner nozzle for ejecting an inner gas and an outer nozzle for ejecting an outer gas, and performs welding while generating an arc on a weld line, the weld line is divided into a plurality of sections, a flow rate Fi of the inner gas is set for each of a first section from time t3 to t4, a second section from time t4 to t5, and a third section from time t5 to t6.SELECTED DRAWING: Figure 2

Systems and methods are provided for utilizing gas lens interfacing collets. A welding-type system may include an electrode holder configured for use in conjunction with an arc welding based torch, a gas nozzle configured to engage a torch head of the welding-type torch, and a gas flow control component. The electrode holder may be configured to engage a non-consumable electrode. The gas flow control component may include a hole through which the electrode extends. The electrode holder may be secured via holder securing features configured to engage the electrode holder onto one or both of the torch head and a back cap at a back-end of the welding-type torch. The torch head may include a nozzle securing element configured to secure the gas nozzle onto the torch head. The gas flow control component may be secured in place by one or both of the gas nozzle and the electrode holder.

Disclosed example systems include: a welding contact tip having: a first axial end portion having a welding wire outlet of an internal bore of the welding contact tip; a threaded middle portion adjacent the first axial end portion; and a second axial end portion adjacent the middle portion, wherein the middle portion includes external threads and the second axial end portion extends the remaining length of the welding contact tip adjacent the middle portion to an axial end face of the welding contact tip; and a gas diffuser that does not contact the second axial end portion or the axial end face of the welding contact tip, and the gas diffuser is configured to conduct welding current to a welding wire within the internal bore via a current transfer path, wherein the current transfer path includes the middle portion and does not include the second axial end portion.

A welding torch system includes a receiving assembly to receive a contact tip and a welding nozzle. The welding torch system also includes a locking element that retains the contact tip in a partially secure position. Further, the welding torch system includes the welding nozzle configured to couple to the receiving assembly to retain the contact tip in a fully secure position.

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 semi-automatic torch trigger for a rotating power connector in use in a welding torch cables is provided. In some examples, a trigger mechanism is configured to transmit control signals through a transmission channel that is not subject to mechanical wear from rotational movement of the rotating power connector, providing reliable communication between a welding torch trigger and a welding power supply without breaking electrical contact or putting unnecessary strain on the welding cable, even as the welding torch rotates relative to the welding torch cable.

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 welding device (1) has a contact tip (2) with an elongated feeding means for feeding a welding wire (4), wherein the contact tip (2) is arranged on or in a nozzle holder (6). A feed device (100) transfers the welding wire (4) from a first orientation into a second orientation, wherein in the first orientation the welding wire (4) is fed to the feed device (100), and in the second orientation the welding wire (4) is led out of the feed device (100) to the nozzle holder (6). A plurality of welding wire cores (8, 10) are introduced into a conduit element (200) via a first conduit element end (202). The welding wire (4) which is guided in the welding wire cores (8, 10) can be guided out of the conduit element (200) via a second conduit element end (204). The welding wire (4) which is guided out of the conduit element (200) via the second conduit element end (204) can be fed into the feed device (100), especially while in the first orientation.

To provide a welding torch having a configuration capable of suppressing the increase in size and complexity of the device structure of the welding torch.SOLUTION: A welding torch 1 includes: a first gas lens 209 which is fixed to the inner periphery that constitutes a first inert gas flow path GF1 at the tip side of a collet 215, and laminarizes the flow of a first inert gas G1 flowing through the first inert gas flow path GF1; and a second gas lens 213 which is disposed in a second inert gas flow path GF2 formed between the outer periphery of the collet 215 and the inner periphery of a gas lens collet 217, and laminarizes the flow of a second inert gas G2.SELECTED DRAWING: Figure 3

Provided in this disclosure is a detachable power connection, particularly for use with a welding system. A male conductor, retained within a first connector, is matingly received within a female conductor, retained within a second connector. An aligning insulator of the second connector encloses and internally retains the female conductor. The aligning insulator includes alignment features formed along an exterior surface of the aligning insulator. A locking body of the first connector retains the male conductor and includes an interior surface for defining an internal void for matingly receiving the exterior surface of the aligning insulator therein. The locking body includes second alignment features formed along the interior surface for matingly engaging the respective first alignment features. A locking nut is formed onto one of the first connector or second connector, for releasably securing the first and second connectors together to form the detachable power connection.

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.

Methods and apparatus to provide a consistent electrode state for welding, an example welding-type system includes: a first wire drive to feed an electrode wire through a welding torch; a bidirectional assisting wire drive to advance the electrode wire from a wire supply to the first wire drive; a tension-compression detector to detect a first tension-compression state of the electrode wire; and one or more motor controllers to control the first wire drive and the assisting wire drive to put the electrode wire in a predetermined position relative to the welding torch by: controlling the first wire drive to hold the electrode wire; and controlling the assisting wire drive to advance or retract the electrode wire based on the first tension-compression state to put the electrode wire in a second tension-compression state.

To provide a welding torch that is configured so that a protrusion length of a tip of an inner nozzle in contrast to a tip of an outer nozzle can be easily changed, while suppressing cost increase.SOLUTION: A welding torch A1 comprises: a non-consumable electrode 25 extending in an axial direction z; an inner nozzle 30 arranged outside in a radial direction with respect to the non-consumable electrode 25, at an end part at one side z1 in the axial direction of the non-consumable electrode 25 and an outer nozzle 31 arranged outside in the radial direction with respect to the inner nozzle 30; an insulation ring 24 made of insulation materials, arranged at the other side z2 in the axial direction with respect to the outer nozzle 31; and an auxiliary member 35 made of insulation materials, which includes a spacer part 35A intervening between the insulation ring 24 and the outer nozzle 31 in the axial direction z.SELECTED DRAWING: Figure 8

To provide a spouting apparatus for spatter adhesion prevention liquid, which can be downsized and eliminate the possibility that a circumference thereof is soiled, by preventing the spatter adhesion prevention liquid from scattering, and can enhance force for removing spatters by spouting all compressed air into a shield nozzle, when spouting compressed air, in order to remove the spatters.SOLUTION: The spouting apparatus is constituted of: a base having a through-hole formed in a vertical direction thereon; a movable member having a holding hole penetrating through in the vertical direction formed therein; a cylindrical drainage member, inserted into the holding hole of the movable member to fix an upper end thereof, whose lower end is inserted through the through-hole of the base; a receiving member, in which a through-hole in a trumpet shape that increases in diameter as going upward is formed, which is fitted and fixed to the holding hole of the movable member, where an upper end of the drainage member is inserted into the through-hole in a trumpet shape from below; an energizing mechanism that energizes the movable member in a direction in which the member is separated from the base; and a sensor that outputs when an interval between the base and the movable member becomes smaller than a certain interval.SELECTED DRAWING: Figure 4A

To suppress contamination of outside air into a welding atmosphere from a wire nozzle for delivering a welding wire to improve shielding property of the welding atmosphere.SOLUTION: A welding device 1 for performing welding in an inert gas atmosphere includes: a welding torch 10; a wire feeding passage 30 through which a welding wire 21 to be delivered between the welding torch 10 and a base material 2 passes; and an inert gas supply passage 40 for supplying a gas including an inert gas as the main component into the wire feeding passage 30.SELECTED DRAWING: Figure 1

A removable arc welding torch head having a variable electrode receiving aperture that includes a number of discrete, slidable wedges guided within a conical interior surface to enable the head to be used with electrodes of various diameters without changing components of the torch head. The removable nature of the torch, while providing for adequate flow of inert gas, provides an adjusting collar that engages the wedges and forms an adjustable opening for an electrode to be inserted therein.