A manual argon arc welding wire feeder

Abstract

This utility model relates to a manual argon arc welding wire feeding device, belonging to the field of manual argon arc welding technology. The device employs an integrated wire feeder and a support base equipped with universal ball wheels. The welding wire passes through a guide rod on the wire feeder, ensuring that the welding wire maintains an angle of approximately 20° with the workpiece. The support base with universal wheels allows the operator to easily move the wire tip while feeding, ensuring it neither touches the tungsten electrode nor leaves the argon gas protective zone. The universal ball wheels, wire feeder, and support base are fixed together by screws, resulting in a simple, reliable, and easy-to-use structure.

Description

Technical Field

[0001] This utility model belongs to the field of manual argon arc welding technology, specifically relating to a manual argon arc welding wire feeding device. Background Technology

[0002] Manual TIG welding is one of the fastest-growing and most widely used practical welding technologies in China. As an important filler material in welding, the feeding method, stability, and angle between the wire and the workpiece play a crucial role in ensuring weld quality. Generally, in manual TIG welding, the operator holds and feeds the wire. Alternatively, there are automatic wire feeders suitable for automated welding, but these have high purchase and maintenance costs.

[0003] In manual TIG welding, the welding wire is generally held manually by the operator. Depending on the type of welding torch, the diameter of the welding wire, and the spatial position of the weld, it can be divided into full grip, thumb and middle finger clamping, and thumb and middle finger pinching. Holding the wire properly can easily lead to poor wire feeding due to finger fatigue or lack of coordination. The welding wire can also oscillate in the molten pool due to finger tremors, resulting in more weld joints and thus welding defects. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is: to design a manual wire feeding device that can meet the requirements of manual argon arc welding.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a manual argon arc welding wire feeding device, including: a guide rod 1, a support frame 2, a support base plate 3, fixing screws and washers 4, a universal ball wheel 5, and fixing nuts and washers 6.

[0008] The guide rod 1 is welded together with the support frame 2 to form a wire feeder. The support base plate 3 is formed by bending a single flat plate, and the included angle between the two sides after bending is 20°. The wire feeder is fixed to the middle part of the support base plate 3 with screws. There are two rows of universal ball wheels 5, which are installed at the bottom of the two sides of the support base plate 3 respectively, and are fixed with the threaded rod and nut of the universal ball wheels 5.

[0009] Preferably, the support frame 2 has two arc-shaped grooves in the middle.

[0010] Preferably, the two rows of omnidirectional ball wheels 5 installed at the bottom of the support base plate 3 are at an 80° angle to each other.

[0011] Preferably, the inner diameter of the guide rod 1 is 4mm.

[0012] Preferably, the wire feeder can ensure the included angle between the welding wire and the workpiece being welded.

[0013] Preferably, one end of the support frame 2 is bent, and the bent part is fixed to the middle part of the support base plate 3 with screws, and the main body of the support frame 2 and the bent part have a certain angle.

[0014] Preferably, the two arc-shaped grooves are located in the middle of the main body of the support frame 2.

[0015] Preferably, there are two guide rods 1, which are arranged at intervals on the support frame 2.

[0016] Preferably, the support substrate 3 can be stretched into a single flat plate.

[0017] Preferably, the device is used in flat welding, inner flat fillet welding, and outer flat fillet welding.

[0018] (III) Beneficial Effects

[0019] This invention proposes a manual wire feeder suitable for manual argon arc welding. The device employs an integrated wire feeder and a support base equipped with omnidirectional ball wheels. The welding wire passes through a guide rod on the wire feeder, ensuring that the welding wire maintains an angle of approximately 20° with the workpiece. The support base with omnidirectional wheels allows the operator to easily move the wire tip while feeding, ensuring it neither touches the tungsten electrode nor leaves the argon gas protective zone. The omnidirectional ball wheels, wire feeder, and support base are fixed together with screws, resulting in a simple, reliable, and easy-to-use structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the device composition of this utility model;

[0021] Figure 2 A schematic diagram of planar welding using the device of this utility model;

[0022] Figure 3 A schematic diagram illustrating the use of the device of this utility model for internal flat angle welding.

[0023] Among them, 1-guide rod; 2-support frame; 3-support base plate; 4-fixing screw and washer; 5-universal ball wheel; 6-fixing nut and washer. Detailed Implementation

[0024] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] like Figure 1As shown, the components of the manual argon arc welding wire feeding device provided by this utility model are: guide rod 1, support frame 2, support base plate 3, fixing screw and washer 4, universal ball wheel 5, fixing nut and washer 6.

[0026] The guide rod 1 is welded to the support frame 2 to form a wire feeder, which is an important structure to ensure the included angle between the welding wire and the workpiece being welded. The inner diameter of the guide rod 1 is 4mm, which can meet the needs of argon arc welding filler wire with a diameter of φ3mm or less. The inner diameter of the guide rod 1 can also be changed to meet the needs of welding wires with other diameters. The support base plate 3 is formed by bending a single flat plate, and the included angle between the two sides after bending is 20°. The wire feeder is fixed to the middle part of the support base plate 3 with screws. There are two rows of universal ball wheels 5, which are installed at the bottom of the two sides of the support base plate 3 respectively, and are fixed with threaded rods and nuts on the universal ball wheels 5.

[0027] Before manual TIG welding, select a straight bare welding wire or a straightened solid welding wire suitable for the material being welded, the welding position, and the welding gap, and thread it into the guide rod 1. During welding, the operator holds the welding torch with one hand and the wire feeder with the other, placing the wire feeder against the workpiece; for continuous wire feeding, the operator grips the welding wire with their thumb and forefinger, straightening them to feed the end of the welding wire into the molten pool, then releases their fingers and quickly bends upwards, repeating this action until the weld is completed. Figure 2 As shown.

[0028] The support frame 2 has two arc-shaped grooves in the middle (one on each side) to facilitate wire feeding by gripping the welding wire with the index finger and thumb. Two rows of universal ball bearing wheels 5 are mounted at the bottom of the support base plate 3 at an 80° angle to each other. This ball bearing design allows for flat surface welding and butt welding on flat surfaces. Alternatively, by replacing the support base plate 3 with a single flat plate and placing the wire feeding device on the angled workpiece, internal and external fillet welding can be performed. Figure 3 As shown.

[0029] In addition to the finger-feeding method described above, the wire feeder, which combines the guide rod 1 and the support frame 2 into one unit, can be detached and used as a wire support. It is also suitable for the pressing method, continuous feeding method, spot-moving method, or dripping method, in which the wire is added to the molten pool by moving the wrist or forearm back and forth.

[0030] As can be seen, the manual wire feeding device designed by this utility model for use in manual argon arc welding can solve the problems of insufficient mastery of traditional wire feeding skills by operators or the difficulty in maintaining the angle between the welding wire and the workpiece or abnormal oscillation of the welding wire end caused by finger fatigue and trembling during a large number of welding operations, thus greatly improving the efficiency of manual argon arc welding operations.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A manual argon arc welding wire feeding device, characterized in that, include: Guide rod (1), support frame (2), support base plate (3), fixing screws and washers (4), universal ball wheel (5), fixing nut and washer (6); The guide rod (1) is welded together with the support frame (2) to form a wire feeder. The support base plate (3) is formed by bending a whole flat plate, and the included angle between the two sides after bending is 20°. The wire feeder is fixed to the middle part of the support base plate (3) with screws. There are two rows of universal ball wheels (5), which are installed at the bottom of the two sides of the support base plate (3) respectively, and are fixed with the threaded rod and nut of the universal ball wheels (5).

2. The apparatus as claimed in claim 1, characterized in that, The support frame (2) has two arc-shaped grooves in the middle.

3. The apparatus as described in claim 1, characterized in that, The two rows of universal ball wheels (5) installed at the bottom of the support base plate (3) are at an 80° angle to each other.

4. The apparatus as claimed in claim 1, characterized in that, The inner diameter of the guide rod (1) is 4mm.

5. The apparatus as claimed in claim 1, characterized in that, The wire feeder ensures the angle between the welding wire and the workpiece being welded.

6. The apparatus as claimed in claim 1, characterized in that, The support frame (2) has a bend at one end, and the bend is fixed to the middle part of the support base plate (3) with screws. The main body of the support frame (2) and the bend have a certain angle.

7. The apparatus as claimed in claim 6, characterized in that, Two arc-shaped grooves are located in the middle of the main body of the support frame (2).

8. The apparatus as claimed in claim 1, characterized in that, There are two guide rods (1), which are arranged at intervals on the support frame (2).

9. The apparatus as claimed in claim 1, characterized in that, The supporting substrate (3) can be stretched into a single flat plate.

10. The apparatus as claimed in claim 1, characterized in that, Applications of this device in flat welding, inner flat fillet welding, and outer flat fillet welding.

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