8results about "Weld torches cleaning" patented technology

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

The invention discloses a load double-wire-feeding-mechanism device of a dioxo welding machine and an operation method. The load double-wire-feeding-mechanism device comprises a control cabinet, a dioxo welding machine body arranged in a frame, two wire feeding mechanisms and a ground wire mechanism arranged at the grounding end of the dioxo welding machine body. The gas circuit of the dioxo welding machine main body is connected with the two welding gun mechanisms, and a welding power supply module and a gas flow control module are arranged in the dioxo welding machine main body and used for controlling the welding gun mechanisms; the welding power supply module is used for providing welding electric energy; the gas flow control module is used for controlling the flow of carbon dioxide protective gas; a control circuit module is arranged in the control cabinet and electrically connected with the wire feeding mechanism, the welding power source module and the gas flow controller, and all the parts are cooperatively controlled according to preset welding parameters and actual welding conditions. The action waste of operators is reduced, the dioxo welding machine body, the wire feeding mechanisms, the relay and the like are adopted to form a loop, the effect that one dioxo welding machine body loads two wire feeding mechanisms is achieved, and the operability and efficiency are improved.

To provide a multiaxial 3D printing device for metal structural components and an arc-based additive manufacturing method.SOLUTION: Based on a multiaxial coordinated printing mode of a robot arm device, a movable guide rail device, and a positioner device, expansion of a six-axis robot arm enables printing in a robot arm's free posture and moving a guide rail enables movable printing following an axis along the guide rail, an open motion space of the 3D printing robot is enlarged, a two-axis positioner allows achieving multiaxial 3D printing without support for complex metal structural components, reducing material costs, and simplifying post-processing. Simultaneously, linkage linear interpolation through a world coordinate system allows effective controlling printing accuracy and print accuracy and large-format dimensions and further achieving multiaxial 3D printing for large and complex metal structural components.SELECTED DRAWING: Figure 1

An object of the present invention is to provide an arc welded joint that has less amount of slag and spatter adhesion and high corrosion resistance, and a method for manufacturing the same. An arc welded joint manufactured by arc welding includes a base material, a weld bead formed by fusing and solidifying the base material and a welding wire melted by heat input from arc, and a weld heat affected zone. In a weld spatter affected zone, the number of spatters generated during welding, adhering to the weld spatter affected zone, and each having an adhesion region with a maximum length of greater than or equal to 0.2 mm is less than or equal to 0.50 spatters / cm2, and a slag coverage area ratio SRATIO calculated by a predetermined equation using a bead surface area SBEAD of a weld bead surface and a slag surface area SSLAG, which is an area of a region of the bead surface area SBEAD covered with slag, is less than or equal to 15%.

The present invention relates to a welding spatter protection device (1) comprising: - a support structure (2); - a movable structure (10), which delimits a first internal shielding cavity (11) by means of a plurality of internal side walls (11a,11b,11c,11d) and is movable with respect to said support structure (2) by means of a first actuator (15) between a lowered position, in which in use said first internal cavity (11) is placed astride the welding zone, and a raised position, in which in use said first internal cavity (11) is moved away from said welding zone, - a cleaning system (20) for cleaning the internal side walls (11a,11b,11c,11d) of said first internal cavity from welding spatter, comprising a scraper (21). Two second walls (11c,11d) interconnect said two first walls (11a,11b) to each other and define two concentric cylindrical surfaces. The scraper (21) is rotationally connected to said movable structure (10) by means of a support arm (22) which is pivoted on a rotation axis (Y1) coincident with the axis (O) of said two concentric cylindrical surfaces (11c, 11d) and supports said scraper (21), keeping it aligned on a radial plane, said support arm (22) being actuatable by means of a second actuator (25). The circumferential ends (11c',11c";11d',11d") of said two concentric cylindrical surfaces (11c,11d) at an inlet mouth (12) and at an internal stop position are radially aligned so that the scraper (21) is always in contact with said two concentric cylindrical surfaces (11c,11d), said two concentric cylindrical surfaces (11c,11d) being oriented so that the radially outermost cylindrical surface (11c) extends beyond the bottom wall (10a) of said movable structure (10), defining a shielding appendage (16).

This application relates to a welding torch cleaning device, belonging to the technical field of welding equipment. It includes a base, on which a positioning block is rotatably connected. The upper end face of the positioning block has a positioning groove for inserting a welding torch nozzle, and the lower end of the positioning block has a receiving groove. The upper end of the positioning block also has a positioning hole for inserting a tungsten needle of the welding torch. The positioning hole is located at the center of the positioning groove and communicates with the receiving groove. A sleeve coaxial with the positioning hole is provided within the positioning groove. The sleeve is inserted into the nozzle. Multiple inner scrapers, evenly distributed around the center line of the positioning hole, are provided on the inner wall of the sleeve. The inner scrapers abut against the side wall of the tungsten needle. A driving component for rotating the positioning block is provided on the base. This application effectively cleans welding residue adhering to the inside of a high-speed welding torch, improving welding quality.

A welding torch 10 is provided for use in a Gas Metal Arc Welding (GMAW) process. The welding torch 10 includes a torch body 12, a welding tip 16 extending from the torch body 12, and a detachable nozzle 22 which substantially surrounds the welding tip 16 in use to direct gas around the welding tip 16 and onto a workpiece, the nozzle 22 having a front end which faces the workpiece in use and a rear end which attaches to the torch body 12 in use, in which a ring 24 is provided, the ring 24 being substantially axially fixed to the nozzle 22 at the rear end of the nozzle 22, and the ring 24 being rotatable with respect to the nozzle 22, the ring 24 having a screw thread and the torch body having a corresponding screw thread 26, for fixing the nozzle 22 to the torch body 12.

The purpose of the present invention is to provide an arc welded joint having excellent corrosion resistance in which the adhesion amount of slag and the adhesion amount of spatter are reduced, and a method for manufacturing the arc welded joint. Provided is an arc welded joint manufactured by arc welding, the arc welded joint having a base material, a welding bead formed by mixing and solidifying the base material, which is melted by heat input from an arc, and a welding wire, and a welding heat-affected portion, the number of spatter, which is generated during welding and has a maximum length of 0.2 mm or more, in an adhesion region that adheres to the welding spatter-affected part is 0.50 spatter / cm2 or less; a slag-covered area ratio (SRATIO) calculated by a prescribed formula using a bead surface area (SBEAD) of a welding bead surface and a slag surface area SSLAG, which is the area of a region covered with slag in the bead surface area (SBEAD), is 15% or less.