Motor assemblies and methods for a push-pull torch are disclosed. An example method includes: rotating a mechanical component about a first axis in a welding torch using a drive motor aligned with the first axis; and feeding a welding wire through the welding torch via a first feed roll and a second feed roll, wherein the first feed roll is operatively coupled with the mechanical component, the first and second feed rolls define a plane through which the welding wire passes, and the plane is generally parallel to and offset from the first axis.

The wire feeding device that feeds welding wire W from the wire source to the welding torch is disposed between the wire source and the welding torch and is configured to temporarily accommodate the welding wire W fed from the wire source and to feed the accommodated welding wire W to the welding torch. In the case where feeding of welding wire W is abnormally stopped, if the acceptance unit accepts instructions for increasing or decreasing, the wire feeding device controls the speed of feeding welding wire W fed by the first feeding part or the second feeding part so that a difference is generated in the feeding speed of the first feeding part and the second feeding part and the accommodated amount of welding wire W is in a range from the lower limit of normal to an upper limit of normal.

A method of operating a welding torch using a rotating coupler assembly that operates between 0 and 800 amps. The rotating coupler assembly allows for 360 degrees of rotation while keeping rotational friction at a minimum. The breakaway torque for the rotating coupler assembly is insignificant and the rotating coupler assembly can be rotated with little effort by hand. While the rotating coupler assembly minimizes rotational friction the design allow for rotating coupler assembly to continue to operate after 1-5 mm of wear on the contact surfaces. An embodiment of the rotating coupler assembly can be quickly disconnected from the unicable.

A wire feeder assembly of the type generally associated with an electric arc welding machine including a driveshaft in rotatable communication with an individually servo motor at one end and a worm gear assembly at the other end is provided. Due to the assembly’s slim design, a series of assemblies can be deployed on a metal plate cladding machine spaced approximate 4 inches apart, which facilitates the construction of previously unattainable welding patterns.

A spool gun having a very unique look, due to its arrangement of features. The spool gun has its wire spool compartment located below the handle and the user's hand, when the user is gripping the spool gun in an operational position. Operably connected to the wire spool compartment is wire spool brake configured to engage with the wire wraps. The brake can have a lock and/or a wire spool life indicator. The wire spool compartment has a cover that is non-threadedly engaged. The feed rate of the wire from the wire spool compartment can be adjusted by a control device, such as a knob, located proximate the user's hand, when the user is gripping the spool gun in the operational position.

A system and method of welding or additive manufacturing is provided where at least two welding electrodes are provided to and passed through a two separate orifices on a single contact tip and a welding waveform is provided to the electrodes through the contact tip to weld simultaneously with both electrodes, where a bridge droplet is formed between the electrodes and then transferred to the puddle.

A system for controlling multiple wire feed motors for use in a welding-type system including a push motor controlled to operate at a target wire feed speed and a pull motor disposed in a welding torch controlled to apply a target torque to the fed welding wire. Such a system eliminates shaving and bird nesting of welding wire.

A device for feeding a wire electrode includes a housing having an input port, an output port, and a cavity defined by the housing. The device also includes a first group of bearings and a second group of bearings disposed within the housing. Each of the bearings have a surface configured to engage and drive the wire electrode. Additionally, each of the bearings have teeth adjacent to the perimeter of the bearings. The teeth of the bearings forming the first group are in meshing engagement with each other, while the teeth of the bearings forming the second group are in meshing engagement with each other. The device also includes a drive sprocket within the housing and having teeth that mesh with the teeth of one of the bearings of the first group and the teeth of one of the bearings of the second group.

A system and method for controlling the position of a filler wire and/or a laser head, or other heating head, in a welding system. The distal end of the filler wire is gradually moved, e.g., upward, until electrical continuity with the weld pool is lost; the filler wire is then moved back into contact with the weld pool. The heating head may be stationary relative to the weld pool, or it may move, with the distal end of the filler wire, relative to the weld pool.

A welding system has a wire feeder having an adjustable lift point. The wire feeder includes a wire supply source configured to supply welding wire, a wire drive assembly configured to feed wire to a welding gun from the spool, and a support base. The wire supply source and the wire drive assembly are supported by the base. A lift member is connected to the support base and is selectively movable in at least one direction with respect to the support base to enable adjustment of the lift point of the wire feeder.