A self-propelled welding carriage has a body supported by a wheeled suspension having a plurality of wheels including a carriage guide wheel having a tapered rim sized and shaped to roll in conforming contact with a carriage guiding seam of a workpiece, restricting lateral movement of the welding carriage for alignment with the carriage guiding seam. Welding equipment is mounted to the body, and has a welding torch for welding an unwelded seam of the workpiece. The welding torch is mounted to the body relative to the carriage guide wheel for disposition of a welding torch tip of the welding torch in alignment with the unwelded seam of the workpiece to weld the unwelded seam when the welding carriage moves with the carriage guide wheel rolling in the carriage guiding seam. The welding carriage has a motor coupled to drive the carriage guide wheel to propel the welding carriage.

A robotic welding system comprises a supporting arm for attaching to a repositionable support structure, the supporting arm comprising a first mounting portion connectable to the repositionable support structure, and a second mounting portion rotatably coupled to the first mounting portion. A yaw rotary actuator rotates the second mounting portion about a yaw axis. A welding arm comprises a third mounting portion rotatably coupled to the second mounting portion of the supporting arm. A pitch rotary actuator rotates the third mounting portion about a pitch axis generally perpendicular to the yaw axis. A roll rotary actuator rotates a torch holder shaft about a roll axis generally perpendicular to the pitch axis. The shaft has a torch mounting portion for mounting a welding torch at an end thereof. A controller is operably coupled to the actuators to cause the welding torch to execute a welding pattern.

The present invention discloses a welding system, particular a welding system using an inert gas in order to provide an oxide free fusion zone, where the object to be welded has a first side and a second side, said first and second sides being opposite sides of the object to be welded, where the system comprises: a first wagon, in use suitable to be arranged on a first side of the object to be welded, where said wagon comprises means for remaining on the surface of the object to be welded, and being able to travel on the surface of the object to be welded, where a first welding device is arranged in connection to or on said wagon; a slave wagon, in use suitable to be arranged on a second side of the object to be welded, where said slave wagon comprises a tub, said tub having an upper rim adapted to the contour of the object to be welded, and where further a gas inlet is provided such that a suitable gas may be introduced into the tub, and where the slave wagon comprises means such that in use the rim of the tub on the slave wagon may remain proximate the second side of the object to be welded, and where means are provided for moving the slave wagon such that the tub is superposed the fusion zone on the object to be welded.

A pressurised welding habitat comprising; a housing configured to provide a sealed chamber, a port configured to connect to a gas supply and enable pressurisation of the chamber, and a sealing unit comprising a channel, wherein the channel is moveable relative to the housing and is configured to provide sealed instrument access to the chamber.

The present disclosure teaches systems and methods for robotic welding of studs onto the surface of I-beams. These systems and methods will find industrial applicability in, for example, the steel erection industry.

The present device is configured for mounting on and movement around the outside surface of a pipe to be processed, and comprises a clamping device and a flexible composite carriage consisting of at least two pivotally connected component parts capable of pivoting about a pin of a hinged connection lying parallel to the axis of the pipe to be processed, wherein each part comprises a group of at least two coaxial supporting rollers, the axis of which is situated at a distance from the hinged connection that is less than or equal to of the distance between the hinges of the component part and is parallel to the axis of the pipe to be processed. The component parts are connected in succession in such a way that each part bears on two groups of supporting rollers, one of which is mounted on the component part, and the other of which is mounted on an adjacent component part. One of the component parts of the carriage is mounted such as to rest on an additional group of supporting rollers. At least one component part is provided with a supporting and driving roller and with a driving mechanism having a source of torque, and at least one component part has at least one processing device.

An automated pipeline-construction system and method for constructing a pipeline and laying constructed pipeline in various terrain conditions. The system has one or more pipeline-racking vehicles arranged in series for storing a plurality of pipeline joints, and a self-propelled pipeline-construction vehicle behind the pipeline-racking vehicles for receiving pipeline joints one-by-one therefrom and automatically coupling each received pipeline joint to the constructed pipeline through a pipeline construction and deployment process. A computing structure controls the pipeline-racking vehicles and pipeline-construction vehicle to align them at least laterally and to synchronously move forward for deploying the constructed pipeline. Each of the one or more pipeline-racking vehicles and the pipeline-construction vehicle may comprise a moving structure, and the computing structure may control the moving structures thereof for leveling the one or more pipeline-racking vehicles and the pipeline-construction vehicle.

Systems and methods for using drones in dispersed welding applications are disclosed. In some examples, drones may be used in large and/or dispersed welding environments to quickly navigate the large distances and/or reach areas that might be more difficult for a person to reach. In some examples, the drones may use one or more attached devices to locate, identify, and/or collect information from welding equipment, welding workpieces, and/or welds within a (e.g., large and/or dispersed) welding environment.

A reflow soldering system comprising one or a plurality of individually heatable soldering process zones. The reflow soldering system is configured to supply heat to a workpiece selectively through condensation or through convection or as a combination of convection and condensation.

A welding system can include a carriage having a top surface and a bottom surface. A first set of wheels can be coupled to the top surface of the carriage, and a second set of wheels can be coupled to the top surface of the carriage, spaced apart from the first set of wheels to create a first beam channel. The welding system can further include a first beam that includes a rack extending along a side of the first beam. The first beam can extend through the first beam channel and engage with the first and second sets of wheels. The welding system can further include a first positioning motor that includes a pinion gear. The first positioning motor is removeably coupled to the carriage such that the pinion gear is positioned to engage the rack extending along the first beam.