41results about "Non-shielding electrode holders" patented technology

An electrode holder is provided for use in stick welding. The electrode holder comprises a handle, and an electrode gripping mechanism fitted to the first opposite end of the handle. The electrode gripping mechanism comprises upper and lower jaw members. The upper jaw member extends above the handle for a distance from one end of the handle. In one non-limiting embodiment a handle switch is located on the handle and below the upper jaw member. The handle switch is in operable communication with a power shutoff located between the electrode holder and a power supply. The location of the handle switch obviates the need for conscious effort on the part of a user to electrically isolate the electrode holder when changing an electrode.

A welding gun adapted to secure a contact tip within the welding gun without threading the contact tip and without the use of tools. The contact tip may be adapted to abut a surface of a first member disposed within the welding gun. The surface may be a surface of a gas diffuser. The surface may be adapted to abut the contact tip. The contact tip also may be adapted for abutment with a second member to urge the contact tip toward the first member. The second member may be a portion of a nozzle adapted to abut the contact tip to urge the contact tip toward the surface of the first member. A method of assembling a welding gun also is provided. The method may comprise disposing a contact tip between a first and a second member and capturing the contact tip between the first and second members.

A welding torch with a welding electrode and a welding electrode holder is provided. One welding torch includes a securing mechanism and an insulated grip. The securing mechanism is configured to secure an exposed central portion of a welding rod bounded by flux covered first and second sides. The securing mechanism is also configured to make electrical contact with the central portion of the rod for arc welding with the first side. The insulated grip is configured to cover the second side of the welding rod.

The present disclosure provides a welding system capable of detecting a size of a welding material and automatically implementing appropriate arc starting parameters. The welding system includes a welder, a welding torch, and a sensor, in which the sensor is configured to detect the size of the welding material, directly or indirectly. The welder is automatically configured to produce an arc having the arc starting parameters determined from the size of the welding material detected by the sensor. The present disclosure decreases operational error by automatically changing arc starting parameters and/or welding parameters based upon a change in welding material size, rather than requiring an operator to manually change the arc starting parameters and/or welding parameters.

In accordance with one embodiment, the present technique relates to a welding torch handle that has an unenclosed slot extending from one end thereof. This unenclosed slot provides a mechanism through which insulated signal leads of a conductor can extend from the interior of the handle to connect with a trigger disposed outside the handle. As one advantage, the unenclosed nature of the slot facilitates this coupling without the need for threading of the leads, which can damage the leads.

Approaches herein provide a torch handle including a pneumatically controlled jaw operable to engage an electrode. In one approach, a system is provided for distributing gas within the torch handle, the system including a pneumatic cylinder within a main housing of the torch handle. The pneumatic cylinder is coupled to a shaft for actuating first and second members of the jaw. The system further includes a gas passageway through the main housing, the gas passageway extending to an exit orifice disposed within the second member. A flow controller, including first and second valves, is operable to direct a flow of a gas to either the pneumatic cylinder or the gas passageway. In one approach, the first member is actuated towards the second member when the gas is directed through the gas passageway, and actuated away from the second member when the gas is directed to the pneumatic cylinder.

Disclosed is an electrode holder to be used in welding that has a closed-end structure that removes the gripping problems inherent with open-jawed “tong-type” electrode holders. The electrode holder contains a grooved hole that allows tighter clamping onto an electrode, easing the process of bending an electrode by hand. The electrode holder also has a comfortable handle covered by a sleeve that keeps the electrode holder cool to the touch, allowing a welding lead to be fed through the sleeve and connected to the electrode holder without removing the handle of the electrode holder.

A welding torch, in particular a handheld welding torch, for a melting welding wire, which is guided in a wire core arranged within a protective hose, fastens the protective hose and the welding core within a torch housing of the welding torch independently from one another. For minimizing stresses on the welding torch by the hose package, the protective hose is fastened rotatably and pivotably and the wire core is fastened rotatably to the torch housing.

The invention relates to the technical field of arc welding equipment, and discloses an argon tungsten-arc welding gun which comprises an upper gun body, a middle insulator and a lower gun body, the upper gun body, the middle insulator and the lower gun body are arranged in an upper-middle-lower mode to form the complete welding gun, and a chuck is fixedly installed in the middle of the lower gun body. The liquid cooling cavity is formed in the chuck, water cooling used for cooling the chuck directly acts on the tungsten electrode bar, compared with original indirect action, the tungsten electrode bar can be more effectively prevented from being ablated, meanwhile, the power control device is arranged in the liquid cooling cavity, two different flowing states of water flow during water supply and water cut-off are used as conditions, and the energy consumption is reduced. And once water cooling is stopped, power supply is stopped immediately, and the tungsten electrode bar does not work any more, so that the situation that the tungsten electrode bar is ablated before the welding gun is closed due to the lack of the cold area effect of water cooling during water supply is effectively prevented, the ablation and damage of the welding gun are avoided, and the replacement cost of the welding gun is effectively reduced.

According to an embodiment of the disclosure, a welding rod holder comprises a body, an electrical contact tip, a slider, and a biasing mechanism. The body has a lower end and an upper end. The electrical contact tip is coupled to the body and is configured to electrically contact a welding rod. The slider is configured to allow the welding rod to move with respect to the body. The biasing mechanism is configured to move the welding rod out of a lower end of the body. The hand brake is configured to selectively allow the biasing mechanism to move the welding rod out of a lower end of the body. The movement of the welding rod out of a lower end of the body is configured to allow a substantially similar distance between the body and a welding work as the welding rod is exhausted.