Argon arc welding wire pen automatically adapting to the size of the welding wire
By designing an argon arc welding wire feeder that automatically adapts to the wire size, and adopting a three-roller wire feeding structure and friction adjustment mechanism, the problems of large size, high cost and low wire utilization rate of existing argon arc welding wire feeding equipment have been solved, achieving a highly efficient and accurate welding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOSTEEL XIAN MACHINERY
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-24
AI Technical Summary
Existing argon arc welding wire feeding equipment suffers from problems such as large equipment size, high cost, low wire utilization rate, and poor accuracy and consistency of manual wire feeding, making it difficult to meet the demand for high-quality and high-efficiency welding.
An argon arc welding wire feeder with automatic wire size adaptation was designed. It adopts a three-roller wire feeding structure, including two built-in rubber rollers and one radially movable rubber roller. The wire is fed by friction to adapt to welding wires of different diameters, and the friction can be adjusted by adjusting the nut and screw to adapt to welding wires of different diameters.
It improves the utilization rate of welding wire, simplifies the operation of splicing welding wire, enhances the accuracy and consistency of wire feeding, reduces the difficulty of operation, and improves welding quality and efficiency.
Smart Images
Figure CN224543404U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of argon arc welding technology, specifically relating to an argon arc welding wire pen that automatically adapts to the size of the welding wire. Background Technology
[0002] In modern industrial manufacturing, welding technology is an indispensable key process, among which argon arc welding (argon arc welding) holds an important position due to its unique advantages. Argon arc welding is a welding technique that uses argon gas as a shielding gas. Under the high temperature of an electric arc, the workpiece and the welding wire metal melt and bond together, completing the welding process. Argon gas effectively isolates the metal from air, preventing oxidation and nitriding during welding, thus ensuring weld quality. This technology has many significant characteristics: high weld quality, producing aesthetically pleasing welds with minimal spatter and internal defects; wide applicability, capable of welding various metals such as stainless steel, aluminum, magnesium, and copper, especially suitable for applications with stringent weld quality requirements; strong arc stability, the high ionization potential of argon gas ensures stable arc combustion and maintains a smooth welding process; concentrated heat, resulting in a small heat-affected zone and low workpiece deformation. Argon arc welding equipment mainly consists of a welding power source, welding torch, argon gas supply system, control system, and welding wires compatible with different materials. These components work together to provide necessary support for the welding operation. Currently, similar products related to TIG welding on the market, such as TIG welding wire feeders and electric wire feeders, have certain limitations in practical applications. Taking electric wire feeders as an example, as devices that automatically feed welding wire, they use a microcomputer to set parameters such as wire feeding speed and method, and utilize a motor to drive the drive wheel and driven wheel to feed the welding wire. However, these devices generally suffer from large equipment size and high cost, while also having low welding wire utilization, resulting in long residual wire and material waste. In addition, manual wire feeding suffers from poor accuracy and consistency, making it difficult to meet the demands of high-quality and high-efficiency welding. Therefore, there is an urgent need to develop a new type of argon arc welding wire feeding equipment to overcome the problems existing in the current technology, improve the accuracy and consistency of manual wire feeding, simplify the operation of splicing welding wire, improve the utilization rate of welding wire, realize automatic adaptation of welding wire thickness and simple wire feeding control, and thus improve welding quality and efficiency. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an argon arc welding wire pen that automatically adapts to the size of the welding wire.
[0004] To achieve the above objectives, the present invention provides the following technical solution: On the one hand, this utility model provides an argon arc welding wire pen that automatically adapts to the size of the welding wire, including a handheld pen body. The handheld pen body has a long hole through which the welding wire can pass. The handheld pen body has a three-roller wire feeding structure inside to facilitate the feeding of welding wire (2). The three-roller wire feeding structure includes two first rubber rollers disposed in the handheld pen body and a second rubber roller whose axle can move radially along the welding wire. The outer circumference of the two first rubber rollers is in contact with the welding wire. The second rubber roller is disposed corresponding to the two first rubber rollers and in contact with the welding wire. Part of the wheel body of the second rubber roller is exposed outside the handheld pen body to facilitate manual feeding of welding wire.
[0005] Specifically, the handheld pen body is provided with a flange for easy installation of the second rubber roller, the flange has a groove for easy exposure of the second rubber roller outside the handheld pen body, and waist holes are provided on the flange and on both sides of the groove to facilitate the movement of the second wheel axle of the second rubber roller.
[0006] Furthermore, a spring limiting device is provided on the flange and on both sides of the groove to facilitate the reciprocating movement of the second wheel shaft of the second rubber roller within the waist hole. A first through hole communicating with the waist hole and used to install the spring limiting device is provided on the flange and radially along the second wheel shaft of the second rubber roller. The spring limiting device includes a pressure shaft, a first spring, and a first clamping screw arranged sequentially in the first through hole. A first thread adapted to the first clamping screw is provided on the side of the first through hole away from the waist hole. The pressure shaft abuts against the second wheel shaft of the second rubber roller through the first clamping screw.
[0007] Specifically, a second through hole is provided on the handheld pen body and perpendicular to the side of the second rubber roller. A second thread is provided on the side of the second through hole away from the second rubber roller. A buckle, a second spring, and a second clamping screw adapted to the second thread are sequentially provided in the second through hole. The damping force of the buckle relative to the second rubber roller is adjusted by adjusting the depth of the second clamping screw screw into the second through hole.
[0008] Specifically, both the first rubber roller and the second rubber roller are provided with groove structures in their circumference to facilitate the movement of the welding wire.
[0009] Specifically, the second rubber roller has a serrated structure in both its circumferential and lateral directions to increase friction.
[0010] Specifically, the three-roller wire feeding structure is located at the end of the handheld pen body where the welding wire exits, and the end of the handheld pen body where the welding wire enters is provided with a threaded cross locking structure. The threaded cross locking structure includes a threaded end, a tapered end, and a cross-shaped deep groove that passes through the threaded end and the tapered end. A matching nut is also fitted over the threaded cross locking structure. One end of the nut is matched with the threaded end, and the other end is matched with the tapered end. The end of the nut away from the threaded end has a hole to facilitate the passage of the welding wire.
[0011] On the other hand, this utility model provides a method for using an argon arc welding wire pen that automatically adapts to the size of the welding wire, the method of use being as follows: The welding wire is inserted into the elongated hole of the handheld pen body. The second rubber roller can move radially along the welding wire to accommodate welding wires of different diameters. By manually rotating the part of the second rubber roller exposed outside the handheld pen body, the friction between the second rubber roller and the welding wire is used to feed the wire for argon arc welding.
[0012] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: Argon arc welding wire is typically fed by workers using their thumbs to flick the wire based on welding experience, while simultaneously swaying their wrists left and right. This device uses a pen-like grip for wire feeding, feeding the wire through friction between a second rubber roller and the welding wire. This reduces the force required from the thumb, and allows more of the pen shaft to contact the hand's grip, distributing the pressure between the welding wire and the hand, making operation simpler and less strenuous for workers. The second rubber roller, via a first spring, can move radially outward along the welding wire, automatically adapting to different wire thicknesses, and can accommodate welding wires with diameters from 0.8mm to 2.4mm. The second rubber roller has a serrated structure on its side to dampen rotation. A nut at the end of the argon arc welding wire pen allows adjustment of the orifice size to accommodate welding wires of different diameters. During the wire feeding process of the argon arc welding wire feeder, the second rubber roller is used to feed the wire. After feeding one wire, a new wire can be inserted at the end, connecting the beginning and end without wasting wire. Normally, manual wire feeding leaves 70-80mm of wire remaining, while this argon arc welding wire feeder leaves only 10mm, making fuller use of wire and saving materials. The nut at the end of the argon arc welding wire feeder can be adjusted to adjust the inlet thickness according to the wire diameter. Furthermore, the outer side of the second rubber roller has a serrated structure, which increases the friction between the hand and the roller. The middle of the second rubber roller has a groove structure made of rubber, which increases the friction between the roller and the wire. The side of the second rubber roller has a raised serrated structure. By rotating the second clamping screw, the pressure of the second spring is adjusted, increasing the friction between the clip and the rubber roller, thus increasing the damping of the second rubber roller's rotation. Attached Figure Description
[0013] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the front view of the present invention; Figure 3 for Figure 2 Sectional view along axis AA; Figure 4 This is a bottom view of the present invention; Figure 5 for Figure 4 BB-direction sectional view; Figure 6 This is a three-dimensional exploded perspective view of the present invention; Figure 7 for Figure 6 A magnified schematic diagram of the C-axis region; Figure 8 This is a schematic diagram of the structure of the second rubber roller of this utility model.
[0016] Wherein: 1 is the pen body; 11 is the flange; 12 is the waist hole; 13 is the first through hole; 14 is the second through hole; 15 is the nut; 2 is the welding wire; 3 is the first rubber roller; 4 is the second rubber roller; 41 is the second wheel axle; 42 is the groove structure; 43 is the serrated structure; 5 is the pressure shaft; 6 is the first spring; 7 is the first clamping screw; 8 is the buckle; 9 is the second spring; 10 is the second clamping screw. Detailed Implementation
[0017] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. The embodiments described below do not represent all embodiments consistent with this invention. Rather, they are merely examples consistent with some aspects of this invention as detailed in the appended claims.
[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Example
[0019] See Figure 1-8As shown, this embodiment provides an argon arc welding wire pen that automatically adapts to the size of the welding wire, including a handheld pen body 1. The handheld pen body 1 has a through-hole for the welding wire 2 to pass through. The handheld pen body 1 has a three-roller wire feeding structure inside for easy feeding of the welding wire 2. The three-roller wire feeding structure includes two first rubber rollers 3 disposed inside the handheld pen body 1, and a second rubber roller 4 whose axle can move radially along the welding wire 2. The outer circumference of the two first rubber rollers 3 is in contact with the welding wire 2. The second rubber roller 4 is correspondingly disposed with the two first rubber rollers 3 and in contact with the welding wire 2. Part of the wheel body of the second rubber roller 4 is exposed outside the handheld pen body 1 to facilitate manual feeding of the welding wire 2.
[0020] Specifically, the handheld pen body 1 is provided with a flange 11 for easy installation of the second rubber roller 4. The flange 11 has a groove to allow the second rubber roller 4 to be exposed outside the handheld pen body 1. On the flange 11, on both sides of the groove, there are waist holes 12 to facilitate the movement of the second wheel axle 41 of the second rubber roller 4. See [reference needed] Figure 6 and Figure 7 As shown.
[0021] Furthermore, spring limiting devices are provided on the flange 11 and on both sides of the groove to facilitate the reciprocating movement of the second wheel shaft 41 of the second rubber roller 4 within the waist hole 12. A first through hole 13, communicating with the waist hole 12 and used to install the spring limiting device, is provided on the flange 11 and radially along the second wheel shaft 41 of the second rubber roller 4. The spring limiting device includes a pressure shaft 5, a first spring 6, and a first clamping screw 7 sequentially arranged within the first through hole 13. A first thread adapted to the first clamping screw 7 is provided on the side of the first through hole 13 away from the waist hole 12. The pressure shaft 5 abuts against the second wheel shaft 41 of the second rubber roller 4 via the first clamping screw 7. (See also...) Figure 7 As shown, the second wheel shaft 41 moves back and forth within the waist hole 12, which allows the welding wire pen to automatically apply welding wire with a diameter of 0.8mm to 2.4mm.
[0022] Specifically, a second through hole 14 is provided on the pen body 1, perpendicular to the side of the second rubber roller 4. A second thread is provided on the side of the second through hole 14 away from the second rubber roller 4. A buckle 8, a second spring 9, and a second clamping screw 10 adapted to the second thread are sequentially provided inside the second through hole 14, which abut against the side of the second rubber roller 4. The damping force of the buckle 8 relative to the second rubber roller 4 is adjusted by adjusting the depth to which the second clamping screw 10 is screwed into the second through hole 14. (See [reference]). Figure 6 As shown.
[0023] Specifically, both the first rubber roller 3 and the second rubber roller 4 are provided with groove structures 42 in the circumference to facilitate the movement of the welding wire, see [reference]. Figure 8As shown.
[0024] Specifically, the second rubber roller 4 has a serrated structure 43 in both its circumferential and lateral directions to increase friction, see [reference]. Figure 8 As shown.
[0025] Specifically, the three-roller wire feeding structure is located at one end of the handheld pen body 1 where the welding wire 2 exits. The end of the handheld pen body 1 where the welding wire 2 enters is provided with a threaded cross-shaped locking structure. This threaded cross-shaped locking structure includes a threaded end, a tapered end, and a deep cross-shaped groove penetrating both the threaded end and the tapered end. A matching nut 15 is also fitted over the threaded cross-shaped locking structure. One end of the nut 15 is fitted with the threaded end, and the other end is fitted with the tapered end. The end of the nut 15 furthest from the threaded end has a hole to facilitate the passage of the welding wire 2. (See [reference]). Figure 3 , Figure 5 , Figure 6 As shown.
[0026] This embodiment provides a method for using an argon arc welding wire pen that automatically adapts to the welding wire size. The method is as follows: The welding wire is inserted into the elongated hole of the handheld pen body 1. The second rubber roller 4 can move radially along the welding wire 2 using the first spring 6 to accommodate welding wires 2 of different diameters. At the same time, the nut 15 needs to be adjusted so that the threaded cross locking structure can accommodate welding wires 2 of different diameters. By manually rotating the part of the second rubber roller 4 exposed outside the handheld pen body 1, the friction between the second rubber roller 4 and the welding wire 2 is used to feed the wire for argon arc welding.
[0027] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.
[0028] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.
Claims
1. An argon arc welding wire pen that automatically adapts to the size of the welding wire, characterized in that, The device includes a handheld pen body (1), which has a long hole through which the welding wire (2) can pass. The handheld pen body (1) has a three-roller wire feeding structure inside to facilitate the feeding of the welding wire (2). The three-roller wire feeding structure includes two first rubber rollers (3) disposed inside the handheld pen body (1) and a second rubber roller (4) whose axle can move radially along the welding wire (2). The outer circumference of the two first rubber rollers (3) is in contact with the welding wire (2). The second rubber roller (4) is disposed corresponding to the two first rubber rollers (3) and in contact with the welding wire (2). Part of the wheel body of the second rubber roller (4) is exposed outside the handheld pen body (1) to facilitate manual feeding of the welding wire (2).
2. The argon arc welding wire pen according to claim 1, characterized in that, The handheld pen body (1) is provided with a flange (11) for easy installation of the second rubber roller (4). The flange (11) has a groove for easy exposure of the second rubber roller (4) outside the handheld pen body (1). On the flange (11) and on both sides of the groove, there are waist holes (12) for easy movement of the second wheel axle (41) of the second rubber roller (4).
3. The argon arc welding wire pen according to claim 2, characterized in that, A spring limiting device is provided on the flange (11) and on both sides of the groove to facilitate the second wheel shaft (41) of the second rubber roller (4) to move back and forth in the waist hole (12). A first through hole (13) is provided on the flange (11) and along the radial direction of the second wheel shaft (41) of the second rubber roller (4) to communicate with the waist hole (12) and to install the spring limiting device. The spring limiting device includes a pressure shaft (5), a first spring (6), and a first clamping screw (7) arranged in sequence in the first through hole (13). A first thread adapted to the first clamping screw (7) is provided on the side of the first through hole (13) away from the waist hole (12). The pressure shaft (5) abuts against the second wheel shaft (41) of the second rubber roller (4) through the first clamping screw (7).
4. The argon arc welding wire pen according to claim 1, characterized in that, A second through hole (14) is provided on the handheld pen body (1) and perpendicular to the side of the second rubber roller (4). A second thread is provided on the side of the second through hole (14) away from the second rubber roller (4). A buckle (8), a second spring (9), and a second clamping screw (10) that are adapted to the second thread are sequentially provided in the second through hole (14) to abut against the side of the second rubber roller (4). The pressure of the buckle (8) relative to the second rubber roller (4) is adjusted by adjusting the depth of the second clamping screw (10) screwed into the second through hole (14).
5. The argon arc welding wire pen according to claim 1, characterized in that, Both the first rubber roller (3) and the second rubber roller (4) are provided with groove structures (42) in the circumference to facilitate the movement of the welding wire.
6. The argon arc welding wire pen according to claim 1, characterized in that, The second rubber roller (4) has a serrated structure (43) in both its circumferential and lateral directions to increase friction.
7. The argon arc welding wire pen according to claim 1, characterized in that, The three-roller wire feeding structure is set at one end of the handheld pen body (1) where the welding wire (2) is fed. The end of the handheld pen body (1) where the welding wire (2) is fed is provided with a threaded cross locking structure. The threaded cross locking structure includes a threaded end, a tapered end, and a cross deep groove that passes through the threaded end and the tapered end. A nut (15) that is adapted to the threaded cross locking structure is also fitted outside the threaded cross locking structure. One end of the nut (15) is adapted to the threaded end, and the other end is adapted to the tapered end. The end of the nut (15) away from the threaded end has a hole that facilitates the passage of the welding wire (2).