Manual flat plate argon arc welding stable wire feeding trolley

Abstract

The utility model relates to a stable wire feeding trolley for manual plate argon arc welding, and belongs to the technical field of argon arc welding. Comprising a bottom plate, wheel sets are symmetrically arranged at the bottom of the bottom plate, a hand supporting table and a wire feeding unit are arranged at the top of the bottom plate, welding gun supports are symmetrically arranged at the rear end of the bottom plate, a welding gun containing opening is formed between the two welding gun supports, the welding gun containing opening and the wire feeding unit are arranged on the same straight line, and a welding gun is arranged at the welding gun containing opening. The hand holding the welding wire is erected on the hand erecting table, and one end of the welding wire penetrates out through the wire feeding unit, so that the welding wire and the welding gun intersect in a welding area. The wire feeding unit comprises a first wire feeding rod and a second wire feeding rod, a first wire feeding hole is formed in the top of the first wire feeding rod, and a second wire feeding hole is formed in the top of the second wire feeding rod. The hand of a welder is erected on the hand table during welding and wire feeding, and the stability of welding and wire feeding is guaranteed; and meanwhile, the accuracy and uniformity of welding wire feeding are guaranteed, the welding requirement is met, and the welding quality and the welding efficiency are improved.

Description

Technical Field

[0001] The utility model relates to a manual flat plate argon arc welding stable wire feeding trolley, belonging to the technical field of argon arc welding. Background Art

[0002] Welding is a very important link in the manufacturing industry. Welding technology directly affects the quality, life and production cost of products. Argon arc welding is mostly used for the welding of materials such as plates, pipes and pressure vessels, and is of utmost importance. This welding method is a welding technology that uses argon as a shielding gas, also known as argon gas shielded welding. Argon arc welding technology is based on the principle of ordinary arc welding. It uses argon gas to protect metal welding materials. Through high current, the welding materials are melted into liquid on the welded substrate to form a molten pool, so that the welded metal and welding materials can achieve metallurgical bonding. Due to the uninterrupted supply of argon gas during high-temperature molten welding, the welding materials cannot come into contact with oxygen in the air, thereby preventing the oxidation of the welding materials and forming a dense welded joint with very good mechanical properties.

[0003] Manual argon arc welding is a common welding method that requires both hands to operate at the same time. When operating argon arc welding, the commonly used finger-to-finish method is: first, hold the welding handle with the right hand (or left hand) so that the end of the tungsten electrode is approximately vertical to the surface of the weld (about 75°), and then immediately lift the arc to start the swing welding. Then, after coordinating the arc start, hold the welding wire with the left hand (or right hand) and slowly feed it into the molten pool (the best wire feeding angle is 15°~20°). The traditional hand holding posture is to clamp the welding wire between the thumb, index finger and middle finger, and rely on the middle finger and ring finger to support it. When the thumb moves the welding wire forward, the index finger moves backward, and then the thumb quickly rubs the surface of the welding wire and moves backward to the position of the index finger. The thumb moves the welding wire forward again, and the welding wire is repeatedly fed into the molten pool. Press the welding wire slightly downward with your hand so that the end of the welding wire is close to the edge of the molten pool. This method requires flexible fingers, because the amount of filler wire added has a great influence on the quality of the weld. If the wire is fed too fast, the weld is easy to pile up and the oxide film is difficult to remove; if the wire is fed too slowly, the weld is easy to bite or concave. Therefore, the wire feeding action must be skillful; at the same time, the hand holds a long welding wire, and it is suspended in the air. If the hand shakes slightly, the welding wire end is unstable and easy to swing, causing wire feeding difficulties and inaccurate wire feeding; thus, the tungsten end tip is burned, causing tungsten clamping, and also deteriorating the shape. At the same time, the arc will be dispersed or even drifted during the welding process, affecting the stability of the welding process and the welding quality. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a manual flat-plate argon arc welding stable wire feeding trolley in view of the above-mentioned prior art, so that the welder's hands have support when feeding the welding wire, thereby ensuring the stability of the welding wire feeding; at the same time, the accuracy and uniformity of the welding wire feeding are guaranteed, thus meeting the welding requirements and improving the welding quality and welding efficiency.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: a manual flat-plate argon arc welding stable wire feeding trolley, comprising a base plate, a wheel group is symmetrically arranged at the bottom of the base plate, a hand stand and a wire feeding unit are arranged on the top of the base plate, and an inclined welding gun bracket is symmetrically arranged at the rear end of the base plate, and a parallel welding gun placement opening is provided between the two welding gun brackets, the welding gun placement opening and the wire feeding unit are arranged on the same straight line, and the welding gun is arranged at the welding gun placement opening, and a hand holding the welding wire is placed on the hand stand and one end of the welding wire is passed through the wire feeding unit, so that the welding wire and the welding gun intersect in the welding area.

[0006] The wire feeding unit includes a first wire feeding rod and a second wire feeding rod. A first wire feeding hole is formed on the top of the first wire feeding rod, and a second wire feeding hole is formed on the top of the second wire feeding rod. The welding wire passes through the first wire feeding hole and the second wire feeding hole in sequence.

[0007] The hand stand and the first wire feeding rod are at the same height, and the height of the first wire feeding rod is higher than that of the second wire feeding rod, so that the wire feeding angle of the welding wire is 15 to 20 degrees.

[0008] The rear end of the bottom plate is symmetrically provided with strip plates, so that the bottom plate is U-shaped, and the welding gun bracket is obliquely fixed on the corresponding strip plates.

[0009] Any of the wheel sets comprises a plurality of wheels arranged on the same side.

[0010] Compared with the prior art, the utility model has the advantages of: a manual flat-plate argon arc welding stable wire feeding trolley, the welder's hands are placed on the hand platform when feeding the welding wire, which ensures the stability of the welding wire feeding; at the same time, it ensures the accuracy and uniformity of the welding wire feeding, meets the welding requirements, and improves the welding quality and welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a manual flat plate argon arc welding stable wire feeding trolley according to an embodiment of the utility model;

[0012] In the figure, 1 is a base plate, 2 is a wheel, 3 is a hand stand, 4 is a first wire feeding rod, 5 is a second wire feeding rod, 6 is a welding gun bracket, 7 is a welding gun placement port, and 8 is a strip plate. DETAILED DESCRIPTION

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] like Figure 1As shown, a manual flat plate argon arc welding stable wire feeding trolley in this embodiment includes a bottom plate 1, and a wheel group is symmetrically arranged at the bottom of the bottom plate 1. Any wheel group includes two wheels 2 arranged on the same side for easy movement. A hand stand 3 and a wire feeding unit are provided on the top of the bottom plate 1. The hand stand 3 is used to place the hand holding the welding wire, and the welding wire passes through the wire feeding unit. A welding gun bracket 6 arranged tilted downward is symmetrically arranged at the rear end of the bottom plate 1. A welding gun placement port 7 is provided between the two welding gun brackets 6. The welding gun placement port 7 is parallel to the welding gun bracket 6. The welding gun placement port 7 and the wire feeding unit are arranged on the same straight line. One hand holds the welding gun and is set at the welding gun placement port 7, and the other hand holds the welding wire and holds it on the hand stand. After that, one end of the welding wire passes through the wire feeding unit, so that the welding wire and the welding gun intersect in the welding area, and welding can be carried out.

[0015] The wire feeding unit includes a vertically arranged first wire feeding rod 4 and a vertically arranged second wire feeding rod 5. A first wire feeding hole is provided at the top of the first wire feeding rod 4, and a second wire feeding hole is provided at the top of the second wire feeding rod 5. The diameters of the first wire feeding hole and the second wire feeding hole are respectively less than 2.2 mm. The hand stand 3 is at the same height as the first wire feeding rod 4. The height of the first wire feeding rod 4 is 2 cm, and the height of the second wire feeding rod 5 is 1 cm. The spacing between the first wire feeding rod 4 and the second wire feeding rod 5 is 4 cm. The welder's left hand is placed on the hand stand 3 and holds the welding wire. One end of the welding wire passes through the first wire feeding hole and the second wire feeding hole in turn, so that the wire feeding angle of the welding wire is 15°. The welding wire moves forward to be fed to the welding area.

[0016] The strip plates 8 are symmetrically arranged at the rear end of the bottom plate 1, so that the bottom plate 1 is U-shaped. The welding gun brackets 6 are fixed on the corresponding strip plates 8, and the welding gun brackets 6 are arranged at 75 degrees. The welding gun placement openings 7 are arranged between the two welding gun brackets 6, so that the welding gun placement openings 7 form a welding angle of 75 degrees, and the welding gun extends to the welding area to intersect with the welding wire to start arc welding.

[0017] The welder of the present application places his hands on the hand stand when feeding the welding wire, which ensures the stability of the welding wire feeding; at the same time, it ensures the accuracy and uniformity of the welding wire feeding, meets the welding requirements, and improves the welding quality and welding efficiency.

[0018] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A manual flat plate argon arc welding stable wire feeding trolley, characterized by: It includes a base plate, a wheel group is symmetrically arranged at the bottom of the base plate, a hand stand and a wire feeding unit are arranged on the top of the base plate, and an inclined welding gun bracket is symmetrically arranged at the rear end of the base plate. A parallel welding gun placement opening is provided between the two welding gun brackets, the welding gun placement opening and the wire feeding unit are arranged on the same straight line, and the welding gun is arranged at the welding gun placement opening. A hand holding the welding wire is placed on the hand stand and one end of the welding wire is passed through the wire feeding unit, so that the welding wire and the welding gun intersect in the welding area.

2. According to claim 1, a manual flat plate argon arc welding stable wire feeding trolley is characterized in that: The wire feeding unit includes a first wire feeding rod and a second wire feeding rod. A first wire feeding hole is formed on the top of the first wire feeding rod, and a second wire feeding hole is formed on the top of the second wire feeding rod. The welding wire passes through the first wire feeding hole and the second wire feeding hole in sequence.

3. A manual flat plate argon arc welding stable wire feeding trolley according to claim 2, characterized in that: The hand stand and the first wire feeding rod are at the same height, and the height of the first wire feeding rod is higher than that of the second wire feeding rod, so that the wire feeding angle of the welding wire is 15 to 20 degrees.

4. The manual flat plate argon arc welding stable wire feeding trolley according to claim 1, characterized in that: The rear end of the bottom plate is symmetrically provided with strip plates, so that the bottom plate is U-shaped, and the welding gun bracket is obliquely fixed on the corresponding strip plates.

5. The manual flat plate argon arc welding stable wire feeding trolley according to claim 1, characterized in that: Any of the wheel sets comprises a plurality of wheels arranged on the same side.

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