Push-pull wire lengthened gas shielded welding gun

Abstract

The utility model relates to the technical field of welding wire conveying, and provides a push-pull wire lengthened gas shielded welding gun which comprises a shell. The first guide block is arranged at one end of the shell, a first guide hole and an air outlet are formed in the first guide block, and a welding wire penetrates through the first guide hole to enter the shell; the second guide block is arranged at the other end of the shell, a second guide hole and an air inlet are formed in the second guide block, the first guide hole and the second guide hole are coaxial, and the welding wire penetrates through the second guide hole to leave the shell after entering the shell; the two ends of the gas feeding pipe are arranged on the gas outlet and the gas inlet. By means of the technical scheme, the problems that in the prior art, once a sealing gasket is used for sealing a device, air outlet is not smooth any more once leakage occurs, the situation of sealing gasket leakage occurs frequently, and the welding effect is seriously affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of welding wire feeding technology, specifically to a push-pull wire extended gas shielded welding gun. Background Technology

[0002] When performing carbon dioxide gas shielded welding, if the workpiece is large, using a welding torch with a longer feed line can reduce the frequency of welding machine movement. However, a longer line also means greater resistance. In actual use, in order to ensure a smoother wire feed, a wire feeding auxiliary device is usually needed to assist in wire feeding.

[0003] In existing wire feeding auxiliary devices, a tight seal is usually required to ensure that carbon dioxide gas does not leak and to guarantee normal operation. However, the conventional use of sealing gaskets for sealing is very easy to cause seal failure, and maintenance will affect the welding efficiency. Utility Model Content

[0004] This invention proposes a push-pull wire extended gas shielded welding torch, which solves the problem in related technologies where the use of sealing gaskets for sealing devices leads to obstructed airflow once leakage occurs, and the frequent occurrence of sealing gasket leakage seriously affects the welding effect.

[0005] The technical solution of this utility model is as follows:

[0006] A push-pull wire extended gas shielded welding torch, used for feeding welding wire, includes:

[0007] case;

[0008] A first guide block is disposed at one end of the housing. The first guide block has a first guide hole and an air outlet. The welding wire passes through the first guide hole and enters the housing.

[0009] A second guide block is disposed at the other end of the housing. The second guide block has a second guide hole and an air inlet. The first guide hole and the second guide hole are coaxial. After the welding wire enters the housing, it passes through the second guide hole and leaves the housing.

[0010] The gas supply pipe has two ends located at the gas outlet and the gas inlet, and the gas supply pipe is used to deliver welding shielding gas.

[0011] As a further technical solution, it also includes:

[0012] A first conveying wheel is rotatably disposed within the housing, and the first conveying wheel is located between the first guide block and the second guide block;

[0013] The second conveying wheel is rotatably disposed within the housing. The second conveying wheel is located between the first guide block and the second guide block, and a clamping space is formed between the first conveying wheel and the second conveying wheel. The clamping space is used to clamp the welding wire.

[0014] As a further technical solution, it also includes:

[0015] There are two swing rods, one end of which is hinged to the housing. The first conveying wheel and the second conveying wheel are respectively mounted on different swing rods. After the swing rods swing, the first conveying wheel and the second conveying wheel move closer to or further away from each other.

[0016] As a further technical solution, it also includes:

[0017] A first elastic element is disposed at both ends on the housing and one of the swing rods, respectively. The first elastic element is used to provide a force that brings the first conveying wheel and the second conveying wheel closer to each other.

[0018] As a further technical solution, it also includes:

[0019] A control lever is mounted on the housing and has a sloping bottom. When the control lever is lowered, the sloping bottom abuts against the side wall of the swing arm. The control lever is used to drive the swing arm to swing.

[0020] As a further technical solution, the control lever extends through the housing and also includes:

[0021] The second elastic element has its two ends respectively disposed on the control rod and the housing, and is used to provide the force for the control rod to rise.

[0022] As a further technical solution, it also includes:

[0023] The cover is detachably mounted on the housing.

[0024] As a further technical solution, the first guide block has a locking portion and further includes:

[0025] A snap-fit ​​plate is disposed on the housing, and the snap-fit ​​plate cooperates with the snap-fit ​​part to snap the first guide block.

[0026] As a further technical solution, the cover is connected to the housing by bolts.

[0027] The working principle and beneficial effects of this utility model are as follows:

[0028] In this invention, the first and second guide blocks guide the entry and exit of the welding wire, ensuring the accuracy and stability of the wire feeding and reducing wire deviation and jamming during the feeding process, thereby improving welding quality. The air outlet and inlet are connected by a gas supply pipe, forming a complete protective gas supply channel, ensuring a stable supply of protective gas during welding, effectively preventing oxidation in the welding area, and improving the quality and aesthetics of the weld. The first and second guide holes are approximately the same size as the welding wire, so even if a small amount of gas exits through them, basic welding operations can still be guaranteed. Therefore, the outer casing does not need to guarantee sufficient sealing; even if the seal is insufficient, operation can continue. The entire welding torch structure is more compact and reasonable, facilitating operation and installation, and adapting to various complex welding environments. Stable wire feeding and protective gas supply help improve welding efficiency, reduce rework and repairs caused by welding quality problems, and thus improve overall production efficiency. Attached Figure Description

[0029] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0032] Figure 3 This is a structural schematic diagram of the internal structure of this utility model from another perspective.

[0033] In the figure: 1. Housing, 2. First guide block, 3. First guide hole, 4. Air outlet, 5. Second guide block, 6. Second guide hole, 7. Air inlet, 8. Air supply pipe, 9. First conveying wheel, 10. Second conveying wheel, 11. Clamping space, 12. Swing rod, 13. First elastic element, 14. Control rod, 15. Inclined surface, 16. Second elastic element, 17. Housing cover, 18. Snap-fit ​​part, 19. Snap-fit ​​plate. Detailed Implementation

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are merely some embodiments of this utility model. For those skilled in the art, they can be understood as further technical solutions without creative effort. In some drawings, components with the same structure or function are only schematically illustrated, or only one is marked. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0035] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Reference Figures 1-3 This is the first embodiment of the present invention, which proposes a push-pull wire extended gas shielded welding torch for conveying welding wire, including a housing 1; a first guide block 2 is disposed at one end of the housing 1, and the first guide block 2 has a first guide hole 3 and an air outlet 4, through which the welding wire enters the housing 1; a second guide block 5 is disposed at the other end of the housing 1, and the second guide block 5 has a second guide hole 6 and an air inlet 7, the first guide hole 3 and the second guide hole 6 are coaxial, after the welding wire enters the housing 1, it passes through the second guide hole 6 and leaves the housing 1; a gas supply pipe 8 is disposed at both ends on the air outlet 4 and the air inlet 7, and the gas supply pipe 8 is used to convey welding shielding gas.

[0038] In this embodiment, the first guide block 2 and the second guide block 5 guide the entry and exit of the welding wire, respectively, ensuring the accuracy and stability of the welding wire feeding, reducing wire deviation and jamming during the feeding process, thereby improving welding quality. The air outlet 4 and the air inlet 7 are connected by the air supply pipe 8, forming a complete protective gas supply channel, ensuring a stable supply of protective gas during welding, effectively preventing oxidation in the welding area, and improving the quality and aesthetics of the weld. The first guide hole 3 and the second guide hole 6 are approximately the same size as the welding wire, so even if a small amount of gas exits through the first guide hole 3 and the second guide hole 6, basic welding operations can still be guaranteed. Therefore, the outer shell does not need to ensure sufficient sealing; even if the seal is insufficient, operation can continue. The entire welding torch structure is more compact and reasonable, easy to operate and install, and adaptable to various complex welding working environments. Stable welding wire feeding and protective gas supply help improve welding efficiency, reduce rework and repairs caused by welding quality problems, thereby improving overall production efficiency.

[0039] As a further technical solution, it also includes a first conveying wheel 9 rotatably disposed inside the housing 1, the first conveying wheel 9 being located between the first guide block 2 and the second guide block 5; a second conveying wheel 10 rotatably disposed inside the housing 1, the second conveying wheel 10 being located between the first guide block 2 and the second guide block 5, and a clamping space 11 being formed between the first conveying wheel 9 and the second conveying wheel 10, the clamping space 11 being used to clamp the welding wire.

[0040] In this embodiment, the first conveying wheel 9 and the second conveying wheel 10 form a clamping space 11, which can stably clamp the welding wire, providing reliable power for the wire conveying and ensuring smooth transmission of the welding wire in long pipelines, effectively addressing the resistance problems caused by long pipelines. The rotating conveying wheels can precisely control the conveying speed and quantity of the welding wire, ensuring a stable supply of welding wire during the welding process and improving the quality and consistency of the welding. This clamping and conveying method reduces the jumping and slippage of the welding wire during the conveying process, reducing welding defects caused by unstable wire conveying, such as uneven welds and porosity. The conveying wheels located inside the housing 1 have a compact layout, occupy little space, do not affect the overall structure and operational flexibility of the welding torch, and can effectively protect the conveying wheels from external interference and damage. By adjusting the rotation speed or clamping force of the conveying wheels, it can accommodate welding wires of different diameters and materials, improving the versatility and applicability of the welding torch and meeting various complex welding process requirements.

[0041] As a further technical solution, it also includes two swing rods 12. One end of the swing rod 12 is hinged to the housing 1. The first conveying wheel 9 and the second conveying wheel 10 are respectively set on different swing rods 12. After the swing rod 12 swings, the first conveying wheel 9 and the second conveying wheel 10 move closer to or further away from each other.

[0042] In this embodiment, the design of the two swing rods 12 allows the first conveying wheel 9 and the second conveying wheel 10 to move closer or further apart, thereby facilitating the adjustment of the clamping degree of the welding wire and adapting to welding wires of different diameters and hardnesses, thus improving the versatility and adaptability of the welding torch. This can serve as a further technical solution to improve the consistency and reliability of welding. The hinged connection between the swing rod 12 and the housing 1 results in a simple structure, convenient operation, and easy maintenance and repair, avoiding problems such as sealing failure or maintenance difficulties caused by complex structures.

[0043] As a further technical solution, the first elastic element 13 is provided at both ends on the housing 1 and one of the swing rods 12 respectively. The first elastic element 13 is used to provide a force for the first conveying wheel 9 and the second conveying wheel 10 to move closer to each other.

[0044] In this embodiment, the first elastic element 13 provides force for the first conveying wheel 9 and the second conveying wheel 10 to move closer together, automatically maintaining the clamping state of the welding wire and avoiding unstable wire feeding due to insufficient clamping force. When the diameter of the welding wire changes slightly, the first elastic element 13 can automatically adjust the clamping force, ensuring that the conveying wheels always effectively clamp the welding wire, improving the adaptability and reliability of the welding wire feeding. This elastic clamping method can reduce welding wire jamming or deformation caused by excessive clamping due to improper manual adjustment, ensuring the stability and consistency of the welding process. The first elastic element 13 simplifies the clamping force adjustment operation, eliminating the need for frequent manual adjustments and reducing the complexity and labor intensity of the operation.

[0045] As a further technical solution, it also includes: the control rod 14 is raised and lowered on the housing 1, the bottom of the control rod 14 has a slope 15, after the control rod 14 is lowered, the slope 15 abuts against the side wall of the swing rod 12, and the control rod 14 is used to drive the swing rod 12 to swing.

[0046] In this embodiment, the lifting mechanism of the control lever 14 allows the operator to conveniently and precisely control the swing of the swing lever 12, thereby enabling remote adjustment of the distance between the first conveying wheel 9 and the second conveying wheel 10, making operation more convenient and efficient. The design of the inclined surface 15 abutting against the side wall of the swing lever 12 can convert the vertical movement of the control lever 14 into the horizontal swing of the swing lever 12, achieving a clever transmission of force. The structure is simple, stable, and reliable. This control method can adjust the clamping degree of the conveying wheels in real time during the welding process, adapting to different welding conditions and welding wire characteristics, ensuring that the welding wire is always conveyed with appropriate tension. It avoids the safety hazards that may be caused by direct manual operation of the swing lever 12, while improving the comfort and accuracy of operation.

[0047] As a further technical solution, the control rod 14 penetrates the housing 1 and also includes: the two ends of the second elastic member 16 are respectively disposed on the control rod 14 and the housing 1, and the second elastic member 16 is used to provide the force for the control rod 14 to rise.

[0048] In this embodiment, the second elastic element 16 provides an upward force to the control lever 14, enabling the control lever 14 to automatically reset when not subjected to external force, facilitating the next adjustment operation and improving the continuity and efficiency of the operation. It avoids unnecessary changes in the clamping force of the conveyor wheel due to the control lever 14 unexpectedly descending under its own weight or other factors, ensuring the stability of the welding wire feed during welding. The elastic reset design reduces the operator's workload, making it easier and reducing fatigue when adjusting the control lever 14. When the control lever 14 is subjected to instantaneous impact or abnormal pressure, the second elastic element 16 acts as a buffer, protecting the control lever 14 and related connecting components, and extending their service life.

[0049] As a further technical solution, a cover 17 is also detachably mounted on the housing 1.

[0050] In this embodiment, the cover 17 is detachably mounted on the housing 1, facilitating the maintenance, inspection, and replacement of internal components of the welding torch. This reduces maintenance difficulties caused by internal malfunctions and improves the maintainability of the equipment. It also facilitates the timely cleaning of any accumulated impurities, dust, or welding wire debris inside the housing 1, ensuring the normal operation of the welding torch and extending its service life. In case of component damage or the need for upgrades, the cover 17 can be quickly disassembled for operation, reducing maintenance costs and downtime, and improving production efficiency. Furthermore, it allows for convenient inspection and adjustment of the position and connections of internal components, ensuring that the welding torch's performance is always in optimal condition.

[0051] As a further technical solution, the first guide block 2 has a locking portion 18, and also includes:

[0052] A snap-fit ​​plate 19 is disposed on the housing 1, and the snap-fit ​​plate 19 cooperates with the snap-fit ​​part 18 to snap-fit ​​the first guide block 2; the housing cover 17 is connected to the housing 1 by bolts.

[0053] In this embodiment, the snap-fit ​​plate 19 is used to snap-fit ​​the snap-fit ​​part 18. When the cover 17 is removed, the snap-fit ​​plate 19 no longer snaps into the first guide block 2. The snap-fit ​​plate can effectively limit the position of the first guide block 2, ensuring the stability of the position of the first guide block 2 and preventing deviation. When disassembly and maintenance are required, the cover 17 can be opened for inspection, which improves the speed of maintenance.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A push-pull wire extension gas shielded welding torch for delivering welding wire, characterized in that, The utility model relates to a welding wire feeding device, including: The shell (1); First guide block (2) are arranged in the shell (1) one end, first guide block (2) have first guide hole (3) and air outlet (4) on it, the welding wire passes through first guide hole (3) and enters the shell (1) inside; Second guide block (5) are arranged in the shell (1) other end, second guide block (5) have second guide hole (6) and air inlet (7) on it, first guide hole (3) and second guide hole (6) are coaxial, after the welding wire enters the shell (1), passes through second guide hole (6) and leaves the shell (1); Air pipe (8) are arranged in the air outlet (4) and air inlet (7) two ends, air pipe (8) are used to transport the welding protective gas.

2. The push-pull wire extension gas shielded welding torch of claim 1, wherein, Also including: First conveying wheel (9) are rotatably arranged in the shell (1), first conveying wheel (9) are located between first guide block (2) and second guide block (5); Second conveying wheel (10) are rotatably arranged in the shell (1), second conveying wheel (10) are located between first guide block (2) and second guide block (5), and the clamping space (11) is formed between first conveying wheel (9) and second conveying wheel (10), and the clamping space (11) is used to clamp the welding wire.

3. The push-pull wire extension gas shielded welding torch of claim 2, wherein, Also including: Swing rod (12) have two, one end of swing rod (12) is hinged with the shell (1), first conveying wheel (9) and second conveying wheel (10) are arranged on different swing rod (12) respectively, after swing rod (12) swing, first conveying wheel (9) and second conveying wheel (10) are close to or away from each other.

4. The push-pull wire extension gas shielded welding torch of claim 3, wherein, Also including: First elastic member (13) two ends are arranged on the shell (1) and one of swing rod (12) respectively, and first elastic member (13) is used to provide the force that first conveying wheel (9) and second conveying wheel (10) are close to each other.

5. The push-pull wire extension gas shielded welding torch of claim 3 wherein, Also including: Control rod (14) are arranged on the shell (1) and are lifted, the control rod (14) bottom has inclined plane (15), after the control rod (14) drops, inclined plane (15) abuts with the lateral wall of swing rod (12), and the control rod (14) is used to drive swing rod (12) swing.

6. The push-pull wire extension gas shielded welding torch of claim 5 wherein, The control rod (14) penetrates the shell (1), and further including: Second elastic member (16) two ends are arranged on the control rod (14) and the shell (1) respectively, and second elastic member (16) is used to provide the force that the control rod (14) rises.

7. The push-pull wire extension gas torch of claim 1, wherein, Also including: Shell cover (17) are detachably arranged on the shell (1).

8. The push-pull wire extension gas shielded welding torch of claim 1 wherein, First guide block (2) have clamping portion (18) on it, and further including: Clamping plate (19) are arranged on the shell (1), and clamping plate (19) are used to clamp first guide block (2) with clamping portion (18) cooperation.

9. The push-pull wire extension gas shielded welding torch of claim 1 wherein, The shell cover (17) is connected with the shell (1) through bolt.

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