Adjustable welding gun contact tube structure

Abstract

The utility model relates to the technical field of current contact nozzles, in particular to an adjustable welding gun current contact nozzle structure which comprises a current contact nozzle body, a wire passing hole and two clamping plates arranged on the two sides of the interior of the wire passing hole respectively. First guide sliding rods are fixed to the opposite sides of the two clamping plates in the radial direction of the wire passing hole, the first guide sliding rods penetrate through the contact tube body and extend into the outer shell, and first sliding blocks are fixed to the ends, in the outer shell, of the first guide sliding rods; a second sliding block is movably arranged in the outer shell through a linear driving piece, the linear driving piece is used for pushing the second sliding block to move back and forth between the two first sliding blocks in the radial direction of the outer shell, and the two first sliding blocks are movably connected with the second sliding block through connecting rods; the distance between the clamping plate and the center of the wire passing hole can be synchronously adjusted according to the size of the welding wire, the welding wire is clamped in the middle, and different use requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of conductive nozzle technology, specifically to an adjustable welding torch conductive nozzle structure. Background Technology

[0002] The welding torch contact tip is a key component of welding equipment, mainly used for conducting current and feeding welding wire. A through hole for feeding the welding wire is typically provided at the center of the contact tip; in existing technology, the size of this through hole is generally set according to the size of the welding wire.

[0003] In the Chinese Patent Document Database, patent application number 202411751279.7 discloses an adjustable current welding machine's conductive tip and its usage method. By setting a guide assembly, the clamping force can be automatically adjusted according to changes in the diameter and hardness of the welding wire. The adaptive guide assembly can straighten the welding wire, ensuring its straightness and maintaining good contact. However, the guide assembly requires adjusting the positions of two guide wheels separately using a moving rod, which may not guarantee that the welding wire is always centered on the conductive tip, potentially affecting the wire's straightness. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable welding torch contact tip structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable welding torch contact tip structure, comprising a contact tip body, a wire feeding hole disposed through the center of the contact tip body, and two clamping plates respectively disposed on both sides inside the wire feeding hole. An outer shell is provided on the outer peripheral wall of the contact tip body. A first guide slide rod is fixed radially along the wire feeding hole on opposite sides of the two clamping plates, and the first guide slide rod extends through the contact tip body into the interior of the outer shell. A first slider is fixed to the end of each first guide slide rod inside the outer shell, and both first sliders can slide within the outer shell along their radial ends. A second slider is movably disposed inside the outer shell via a linear drive component, which pushes the second slider to move back and forth radially between the two first sliders. Both first sliders are movably connected to the second slider via a connecting rod, one end of which is rotatably connected to the first slider, and the other end of which is rotatably connected to the second slider.

[0006] Furthermore, both clamping plates are arc-shaped metal plate structures arranged inside the wire feeding hole along the length direction of the conductive nozzle body.

[0007] Furthermore, the conductive nozzle body has a threaded section for installation at one end along its length, and the outer shell is located at the end near the threaded section.

[0008] Furthermore, a second guide slide rod is fixed to the end of the clamping plate away from the first guide slide rod along the radial direction of the wire feeding hole, and a guide slide hole that is slidably connected to the second guide slide rod is provided through the side wall of the conductive nozzle body.

[0009] Furthermore, the interior of the outer shell is provided with limiting slide rails that correspond one-to-one with the first slider and the second slider along its radial direction, and both the first slider and the second slider are provided with slide grooves that are adapted to the limiting slide rails.

[0010] Furthermore, the linear drive is a threaded rod installed radially inside the housing, with one end of the threaded rod extending to the outside of the housing and a knob fixed thereon, and the second slider is threadedly connected to the linear drive.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The adjustable welding torch contact tip structure can clamp and fix the welding wire in the middle by symmetrically arranging two clamping plates inside the wire feed hole, which improves the straightness of the welding wire. At the same time, the large contact area ensures that the current is evenly distributed to the welding wire, avoiding local overheating or arc instability. By setting the outer shell, the first guide slide, the first slider, the second slider and the linear drive component, the distance between the clamping plate and the center of the wire feed hole can be adjusted synchronously according to the size of the welding wire to meet different usage requirements. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0013] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 3 This is an exploded view of the present invention;

[0015] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0016] In the figure: 1. Conductive nozzle body; 101. Wire feeding hole; 102. Threaded section; 103. Guide slide hole; 2. Clamping plate; 3. Outer shell; 301. Limiting slide rail; 4. First guide slide rod; 5. First slider; 6. Second slider; 7. Linear drive component; 8. Connecting rod; 9. Second guide slide rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. The term "comprising" and any variations thereof in the specification, claims, and accompanying drawings of the present utility model are intended to cover non-exclusive inclusion.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections 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. Furthermore, in the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-4 The present invention provides an embodiment of an adjustable welding torch contact tip structure, comprising a contact tip body 1, a wire feeding hole 101 disposed through the center of the contact tip body 1, and two clamping plates 2 respectively disposed on both sides inside the wire feeding hole 101. In this embodiment, both clamping plates 2 are arc-shaped metal plate structures disposed inside the wire feeding hole 101 along the length direction of the contact tip body 1. When the welding wire is clamped in the middle, the contact area is large, ensuring that the current is evenly distributed to the welding wire and avoiding local overheating or arc instability.

[0020] A housing 3 is provided on the outer peripheral wall of the conductive nozzle body 1. The housing 3 is specifically a circular ring structure, and its inner diameter is equal to the outer diameter of the conductive nozzle body 1. On the opposite sides of the two clamping plates 2, a first guide slide rod 4 is fixed along the radial direction of the wire feeding hole 101. The first guide slide rod 4 extends through the conductive nozzle body 1 into the interior of the housing 3. A first slider 5 is fixed to the end of the first guide slide rod 4 inside the housing 3. Both first sliders 5 can slide along the radial direction of the two ends of the housing 3 inside the housing 3. A second slider 6 is movably arranged inside the housing 3 through a linear drive member 7. The linear drive member 7 is used to push the second slider 6 to move back and forth along the radial direction of the housing 3 between the two first sliders 5. Both first sliders 5 are movably connected to the second slider 6 through a connecting rod 8. One end of the connecting rod 8 is rotatably connected to the first slider 5, and the other end of the connecting rod 8 is rotatably connected to the second slider 6.

[0021] In this embodiment, the linear drive 7 is a threaded rod installed inside the housing 3 along the radial direction of the housing 3, and one end of the threaded rod extends to the outside of the housing 3 and is fixed with a knob. The second slider 6 is threadedly connected to the linear drive 7. By rotating the threaded rod, the second slider 6 can be driven to move back and forth along the radial direction of the housing 3 inside the housing 3.

[0022] In this embodiment, the inner surface of the outer shell 3 is provided with limiting slide rails 301 that correspond one-to-one with the first slider 5 and the second slider 6 along its radial direction. The first slider 5 and the second slider 6 are provided with slide grooves that are adapted to the limiting slide rails 301, which play a guiding and limiting role, so that the second slider 6 and the two first sliders 5 can slide back and forth inside the outer shell 3 along its radial direction.

[0023] In this embodiment, the conductive nozzle body 1 has a threaded section 102 for installation at one end along its length, and the outer shell 3 is located at the end near the threaded section 102. The clamping plate 2 at the end away from the first guide slide rod 4 is fixed with a second guide slide rod 9 along the radial direction of the wire feeding hole 101. The side wall of the conductive nozzle body 1 is provided with a guide slide hole 103 that is slidably connected to the second guide slide rod 9. The first guide slide rod 4 and the second guide slide rod 9 are both metal rod-shaped structures. When the position of the clamping plate 2 is adjusted, the second guide slide rod 9 moves synchronously inside the guide slide hole 103, thereby improving the stability of the movement of the clamping plate 2.

[0024] Working principle: When the position of the clamping plate 2 needs to be adjusted, the linear drive 7 is rotated, which drives the second slider 6 to slide radially inside the outer shell 3. This drives one end of the two connecting rods 8 to rotate, and the connecting rods 8 push the two first sliders 5 to slide radially along the outer shell 3. Then, the two clamping plates 2 are pushed synchronously towards the center of the wire feed hole 101 or to both sides to clamp the welding wire in the middle, which is convenient and quick.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable welding torch contact tip structure, comprising a contact tip body (1), a wire feed hole (101) penetrating the center of the contact tip body (1), and two clamping plates (2) respectively disposed on both sides inside the wire feed hole (101), characterized in that: A housing (3) is provided on the outer peripheral wall of the conductive nozzle body (1). A first guide slide rod (4) is fixed on the opposite side of the two clamping plates (2) along the radial direction of the wire feeding hole (101). The first guide slide rod (4) extends through the conductive nozzle body (1) into the interior of the housing (3). A first slider (5) is fixed at the end of the first guide slide rod (4) inside the housing (3). Both first sliders (5) can slide inside the housing (3) along the radial direction of both ends. A second slider (6) is movably provided inside the housing (3) through a linear drive member (7). The linear drive member (7) is used to push the second slider (6) to move back and forth along the radial direction of the housing (3) between the two first sliders (5). Both first sliders (5) are movably connected to the second slider (6) through a connecting rod (8). One end of the connecting rod (8) is rotatably connected to the first slider (5), and the other end of the connecting rod (8) is rotatably connected to the second slider (6).

2. The adjustable welding torch contact tip structure according to claim 1, characterized in that: Both clamping plates (2) are arc-shaped metal plate structures arranged inside the wire feed hole (101) along the length direction of the conductive nozzle body (1).

3. The adjustable welding gun contact tip assembly of claim 1, wherein: The conductive nozzle body (1) has a threaded section (102) for installation at one end along its length, and the outer shell (3) is located at one end near the threaded section (102).

4. The adjustable welding gun contact tip assembly of claim 3, wherein: The clamping plate (2) is fixed with a second guide slide rod (9) at the end away from the first guide slide rod (4) along the radial direction of the wire feeding hole (101). The side wall of the conductive nozzle body (1) is provided with a guide slide hole (103) that is slidably connected to the second guide slide rod (9).

5. The adjustable welding gun contact tip assembly of claim 1 wherein: The outer shell (3) has a limiting slide rail (301) that corresponds to the first slider (5) and the second slider (6) respectively along its radial direction, and the first slider (5) and the second slider (6) are each provided with a slide groove that is adapted to the limiting slide rail (301).

6. The adjustable welding gun contact tip assembly of claim 1, wherein: The linear drive (7) is a threaded rod installed inside the housing (3) along the radial direction of the housing (3), and one end of the threaded rod extends to the outside of the housing (3) and is fixed with a knob. The second slider (6) is threadedly connected to the linear drive (7).

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