Abstract:
There is provided a system and method for controlling an ambient magnetic field present in a weld region. At least one permanent magnet is provided adjacent the weld region and is adapted for movement with a welding apparatus along a welding path. The at least one permanent magnet is configured to generate a nulling magnetic field that opposes the ambient magnetic field.
Abstract:
The invention described herein generally pertains to a system (400) and a method related to energizing a welding wire (402) based on a location of an electrode (406) at an edge on a workpiece (W). An edge detector (450) is configured to identify an edge on the workpiece (W) during a welding operation and a controller (460) is configured to mange a temperature of a puddle formed by the electrode (406) by adjusting one or more welding parameters. The welding parameters can be, but are not limited to, an energizing of the welding wire (402), a wire feed speed, a temperature of the tungsten inert gas (TIG) arc, a metal core, or a flux core), movement speed, among others.
Abstract:
A tractor unit mounting mechanism includes a clamping assembly that is configured to engage and disengage a tractor unit (200) to a guide track (100). The guide track (100) includes a first rail (110) and a second rail (110). The mounting assembly also includes at least one pivot block set that has a first pivot block (211) and a second pivot block (211). Each of the first pivot block (211) and the second pivot block (211) includes a first rolling device (210A) and a second rolling device (210B). The first rolling devices (210A) are disposed on an inner portion of the respective pivot blocks (211 ) and the second rolling devices (210B) are disposed on an outer portion of the respective pivot blocks (211 ) with respect to the tractor unit (200). The at least one pivot block set is disposed on the tractor unit such that the first pivot block and the second pivot block are on opposite sides of the guide track when the tractor unit is mounted on the guide track. When the tractor unit is in a disengaged position, a first distance (D3) between an outer portion of the first rail and an outer portion of the second rail is greater than a second distance (D1) between the first rolling devices of the at least one pivot block set, and the first distance (D1) is less than a third distance (D2) between the second rolling devices of the at least one pivot block set. In some embodiments, the tractor unit includes at least two pivot block sets. In some embodiments, a width (W1) of the first rolling device (210A) is greater than a width (W2) of the second rolling device (210B) for each of the first pivot block and the second pivot block.
Abstract:
A tractor unit system includes a tractor unit that has a travel drive gear (310). The travel drive gear (310) includes a drive gear portion (315) and at least one drive roller portion (316). The system also includes a guide track (100) that has a track gear (130). The track gear (130) includes a track gear portion (131 ) and at least one land portion (132). The at least one drive roller portion (316) and the at least one land portion (132) are configured such that the at least one drive roller portion (316) contacts the at least one land portion (132) when the drive gear portion (315) is engaged to the track gear portion (131 ). In some embodiments, a diameter of the at least one drive roller portion is equal to a pitch diameter of the drive gear portion. If the track gear portion is curved, in some embodiments a diameter of the at least one land portion equals a pitch diameter of the track gear portion. In other embodiments, if the track gear portion is straight, a dimension of the at least one land portion equals a pitch line of the track gear portion.
Abstract:
A lead/lag torch angle adjustment system for a weld held. The weld head device (905) includes a torch head assembly (920) that includes an electrode (925). The weld head device (905) also includes a support device (930) that supports the torch head assembly (920) and a barrel assembly (910) that is operatively connected to the torch head assembly (920) and the support device (930). The barrel assembly (910) is configured to change at least one of a lead angle and a lag angle of the electrode (925) with respect to a workpiece (906). The barrel assembly (910) includes an adjustment mechanism (914) that includes a first section that is operatively connected to the torch head assembly (920). The adjustment mechanism (914) also includes a second section (915A/B) that is configured to accept the mount plate (934A/B). The barrel assembly (910) also includes a mount plate (934A/B) that is operatively connected to the support device (930) and at least one barrel clamp (917). The barrel clamp (917) is configured to attach to the mount plate (934A/B) and also configured to accept the second section (915A/B). In some embodiments, the second section is conical shaped, and a transverse movement of the at least one barrel clamp (917) produces a force on the conical shaped second section that forces the second section towards the mount plate (934A/ B).
Abstract:
A welding apparatus is provided for carrying a welding gun across or past a surface for making welds. The apparatus may include one or more rolling components, such as wheels for example, that do not substantially plastically deform as a result of contacting or being in close proximity to recently completed welds or preheated joints and provide adequate traction to move the apparatus across or past the surface. A portion of the contact surface of the rolling component may be configured with a given surface roughness to provide sufficient traction.
Abstract:
A system for welding two pipes includes a first pipe clamp, a second pipe clamp, a weld torch, an inspection detector, a motor, one or more processors, and a grinder. The weld torch is configured to create a weld joint between the pipes at an interface region between the pipes. The inspection detector is configured to emit an inspection beam of radiation. The motor is operatively associated with the inspection detector to direct the inspection beam of radiation along the weld joint between the pipes. The one or more processors are operatively associated with the inspection detector to determine a profile of the weld joint between the pipes. The grinder is configured to grind at least a portion of the weld joint between the pipes based on the profile of the weld joint between the pipes.