ROTATING ARC WELDING TORCH

Abstract

The invention uses the principle of the pneumatic turbine and a cooling system for the entire welding torch, wherein the gas used in the welding process, or even compressed air, enters through a conductor in the axial direction to the consumable, thus moving, a turbine, which in turn moves a tip and a tip holder. The welding torch can be used for extended periods of time at 100% cycle on welding machines of NEMA class I, since it is water cooled. In addition, the torch can be used in any welding source from any manufacturer, whether the machine is new or very old, as the euro standard (socket) is the same. This implies that there is no need to purchase a new welding machine, but only a torch. In construction and assembly environments, such as riser welding, refineries, joint welding, coating, and processes that aim to build a part using only one welding consumable, the use of said torch would bring a significant balance in terms of reduction of time and cost. This torch can also be used in any existing welding device, within the abovementioned processes.

Claims

1. A welding torch with rotating arc, comprising a cooling body, a ball bearing seat coupling sleeve, a diameter adjustment ring, an eccentricity sleeve, a spacer ring, a contact tip, a nozzle, a ball bearing cap, a current input connection, an eccentricity shaft, a pneumatic turbine rotor, a current insulation sleeve, two deep groove ball bearings, two ball bearings, an outer protection body, a current passing terminal, a cooling cover, and a pressing sleeve.

2. The welding torch with rotating arc according to claim 1, wherein the diffuser fits into a neck, a tip fits into a diffuser, the diffuser being part of the eccentricity shaft, the eccentricity shaft having side holes, and wherein the nozzle functions as a containment element for a gas flow.

3. The welding torch with rotating arc according to claim 1, wherein the principle of a pneumatic turbine creates an orbit defined by a mechanical adjustment on the shaft, by means of an eccentric rotation mechanism, consisting of the diameter adjustment ring and the eccentricity shaft, thus rotating a consumable wire.

4. The welding torch with rotating arc according to claim 3, wherein the consumable wire rotates.

5. The welding torch with rotating arc (100) according to claim 1, characterized in that the cooling body (1) passes the gas used in the welding process, or even the compressed air, through a conductor in the axial direction to the consumable, moving the turbine (11), which in turn moves the tip (6) and tip holder (10).

6. The welding torch with rotating arc according to claim 1, wherein the welding torch is water-cooled.

7. The welding torch with rotating arc according to claim 1, wherein the welding torch has interchangeability between old and new sources.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0012] The present invention will be described in more detail below, with reference to the attached figures which, in a schematic way and not limiting the inventive scope, represent examples of its embodiment. In the drawings, there are:

[0013] FIG. 1 illustrating the welding torch in exploded view;

[0014] FIG. 2 illustrating a side view of the welding torch;

[0015] FIG. 3 illustrating a view of the welding torch.

DETAILED DESCRIPTION OF THE INVENTION

[0016] The use of the rotating arc welding torch, proposed in the present invention, is capable of working both in a GMAW welding machine manufactured, for example, in 1970, and in a machine manufactured in 2018, thanks to the standard Euroconnector system (IEC 60974-7 standard). The welding torch described herein can be used, for example, in the following cases: [0017] in extended periods of time with 100% cycle, in NEMA class I welding machines, since the torch is water-cooled; [0018] in straight or almost straight (composite) chamfers, which can dispense with machining or greatly reduce this operation, a factor that has a strong impact on the reduction of cost and total manufacturing time, also reducing the consumption of filler metal; [0019] in additive manufacturing processes; [0020] the welding process can be semi-automatic or automatic, or even mechanized.

[0021] The estimated cost of using the welding torch proposed herein is around 10 times lower than that of certain models on the market. The use of said torch is also capable of reducing the consumption of filler metal, in addition to reducing the machining time, thus reducing the cost and total manufacturing time.

[0022] The torch of this invention also has the ability to be used in any welding source.

[0023] It is able to increase the deposition rate in kg/h of filler metal, resulting in an increase in the number of welded joints per hour, for example.

[0024] It uses the principle of the pneumatic turbine, creating an orbit defined by an eccentric rotation mechanism, consisting of a diameter adjustment ring and an eccentricity shaft, consequently rotating the consumable wire.

[0025] It also has a cooling system for the entire welding torch, in which the gas used in the welding process, or even compressed air, enters through a conductor in the axial direction to the consumable, thus moving a turbine, which in turn moves a tip and a tip holder.

[0026] The rotating arc welding torch proposed herein has a turbine that causes an orbit in the consumable wire (filler metal). A diffuser element fits into a neck-like component, a tip fits into the diffuser, and a nozzle functions as a gas flow containment element.

[0027] As illustrated in FIG. 1, the welding torch (100) thus comprises a cooling body (1)—its function is to control the torch heating at high amperage, a ball bearing seat coupling sleeve (2)—it houses the ball bearing that allows the shaft to move from the center, a diameter adjustment ring (3)—it allows the central shaft to be moved to adjust the turning diameter of the wire, an eccentricity sleeve (4)—it has as a function balancing the system, a spacer ring (5)—it has the function of insulating and finishing between items 2 and 3, a contact tip (6)—a commercial item that varies according to the wire diameter and has the function of conducting the current to the wire-shaped consumable, which can be solid or tubular, a nozzle (7)—a commercial item that protects the gas outlet up to the contact tip, a ball bearing cap (8)—a protection for the ball bearing, a current input connection (9)—a base with thread for coupling the electric current cable used in the welding process, an eccentricity shaft (10)—a central shaft with the function of shifting the center and driving the consumable wire and gas for welding, a pneumatic turbine rotor (11)—a rotor with blades for rotating the torch, a current insulation sleeve (12)—a polymer sleeve with the function of insulating the welding current, two deep groove ball bearings (13)—a commercial ball bearing-type component, two ball bearings (14)—a commercial ball bearing-type component, an external protective body (15)—an external finish of the torch, a current passage terminal (16)—a connection for pressing the welding current cable, a cooling cover (17)—a cover for the water passage conductors, and a pressing sleeve (18)—a sleeve for pressing the current cable.